From f9b6868cf1d345321b22c4ff28e4f967f3575f73 Mon Sep 17 00:00:00 2001 From: Adam Sawicki Date: Fri, 24 Aug 2018 12:13:37 +0200 Subject: [PATCH] Described version 2.1.0-beta.1 in CHANGELOG.md. Minor fixes in documentation. --- CHANGELOG.md | 35 ++++ README.md | 1 + bin/VmaReplay_Release_vs2015.exe | Bin 163328 -> 163328 bytes bin/VulkanSample_Release_vs2015.exe | Bin 210944 -> 210944 bytes docs/html/index.html | 1 + docs/html/vk__mem__alloc_8h_source.html | 240 ++++++++++++------------ src/vk_mem_alloc.h | 1 + 7 files changed, 158 insertions(+), 120 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index be4cb6e..68cd499 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,38 @@ +# 2.1.0-beta.1 (2018-08-24) + +Major release after many months of development in "development" branch and features branches. Many new features added, some bugs fixed. API stays backward-compatible. + +Major changes: + +- Added linear allocation algorithm, accessible for custom pools, that can be used as free-at-once, stack, double stack, or ring buffer. See "Linear allocation algorithm" documentation chapter. + - Added `VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT`, `VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT`. +- Added feature to record sequence of calls to the library to a file and replay it using dedicated application. See documentation chapter "Record and replay". + - Recording: added `VmaAllocatorCreateInfo::pRecordSettings`. + - Replaying: added VmaReplay project. + - Recording file format: added document "docs/Recording file format.md". +- Improved support for non-coherent memory. + - Added functions: `vmaFlushAllocation`, `vmaInvalidateAllocation`. + - `nonCoherentAtomSize` is now respected automatically. + - Added `VmaVulkanFunctions::vkFlushMappedMemoryRanges`, `vkInvalidateMappedMemoryRanges`. +- Improved debug features related to detecting incorrect mapped memory usage. See documentation chapter "Debugging incorrect memory usage". + - Added debug macro `VMA_DEBUG_DETECT_CORRUPTION`, functions `vmaCheckCorruption`, `vmaCheckPoolCorruption`. + - Added debug macro `VMA_DEBUG_INITIALIZE_ALLOCATIONS` to initialize contents of allocations with a bit pattern. + - Changed behavior of `VMA_DEBUG_MARGIN` macro - it now adds margin also before first and after last allocation in a block. +- Changed format of JSON dump returned by `vmaBuildStatsString` (not backward compatible!). + - Custom pools and memory blocks now have IDs that don't change after sorting. + - Added properties: "CreationFrameIndex", "LastUseFrameIndex", "Usage". + - Changed behavior of `vmaGetAllocationInfo` and `vmaTouchAllocation` to update `allocation.lastUseFrameIndex` even if allocation cannot become lost. + - Changed VmaDumpVis tool to use these new properties for better coloring. + +Minor changes: + +- Improved logic of `vmaFindMemoryTypeIndex` for some cases, especially integrated GPUs. +- VulkanSample application: Removed dependency on external library MathFu. Added own vector and matrix structures. +- Code changes that improve compatibility with various platforms, including: Visual Studio 2012, 32-bit code, C compilers. + - Changed usage of "VK_KHR_dedicated_allocation" extension in the code to be optional, driven by macro `VMA_DEDICATED_ALLOCATION`, for compatibility with Android. +- Many additions and fixes in documentation, including description of new features, as well as "Validation layer warnings". +- Other bugfixes. + # 2.0.0 (2018-03-19) A major release with many compatibility-breaking changes. diff --git a/README.md b/README.md index 6815d7a..dd3df78 100644 --- a/README.md +++ b/README.md @@ -43,6 +43,7 @@ Additional features: - Support for memory mapping, reference-counted internally. Support for persistently mapped memory: Just allocate with appropriate flag and you get access to mapped pointer. - Support for non-coherent memory. Functions that flush/invalidate memory. nonCoherentAtomSize is respected automatically. - Custom memory pools: Create a pool with desired parameters (e.g. fixed or limited maximum size) and allocate memory out of it. +- Linear allocator: Create a pool with linear algorithm and use it for much faster allocations and deallocations in free-at-once, stack, double stack, or ring buffer fashion. - Support for VK_KHR_dedicated_allocation extension: Just enable it and it will be used automatically by the library. - Defragmentation: Call one function and let the library move data around to free some memory blocks and make your allocations better compacted. - Lost allocations: Allocate memory with appropriate flags and let the library remove allocations that are not used for many frames to make room for new ones. diff --git a/bin/VmaReplay_Release_vs2015.exe b/bin/VmaReplay_Release_vs2015.exe index 6f29d4be34688fee7f1787d60388f0e973c0fda7..6613d41c594736c0c7f674c50443ddf479dfd4d7 100644 GIT binary patch delta 106 zcmZqp!`bkMa{~t>llZM>F2;5)M#k-2j7+=4t;BEDM>7Bc6A;G$v57GggNZDN$G`xS m;{mcofOrB>ZUS6x`acOKDWG}Vr6ig3SQy#2d&)9xPXGX;n-uf_ delta 106 zcmZqp!`bkMa{~t>lkT}@F2;5)M#k-2j7+=4t#r@TM>7Bc6A;G$v57GggNZDN$G`xS m;{mcofOrB>ZUS6x`acOKDWG}Vr6ig3SQy#1d&)9xPXGX}NEIaj diff --git a/bin/VulkanSample_Release_vs2015.exe b/bin/VulkanSample_Release_vs2015.exe index 4686fddbbaff9b3073f6ab3fe1681e2ffc456f6e..104e15fa6a56b19c6d1233d0e74446a5559ac202 100644 GIT binary patch delta 121 zcmZqpz|-)7X9EW#lf^uJO&1s z91oB!0>o2*a#P@P)A^P$Nde8^uJO&1s z91oB!0>o2*a#P@P)A^P$Nde8t2^iCHQn)A$JFB4$R(Px-D3mOj&=YQ Ccp(J< diff --git a/docs/html/index.html b/docs/html/index.html index 336fb86..8cf6408 100644 --- a/docs/html/index.html +++ b/docs/html/index.html @@ -137,6 +137,7 @@ Table of contents
  • General considerations diff --git a/docs/html/vk__mem__alloc_8h_source.html b/docs/html/vk__mem__alloc_8h_source.html index 88e2ea2..bbbc16f 100644 --- a/docs/html/vk__mem__alloc_8h_source.html +++ b/docs/html/vk__mem__alloc_8h_source.html @@ -62,178 +62,178 @@ $(function() {
    vk_mem_alloc.h
    -Go to the documentation of this file.
    1 //
    2 // Copyright (c) 2017-2018 Advanced Micro Devices, Inc. All rights reserved.
    3 //
    4 // Permission is hereby granted, free of charge, to any person obtaining a copy
    5 // of this software and associated documentation files (the "Software"), to deal
    6 // in the Software without restriction, including without limitation the rights
    7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    8 // copies of the Software, and to permit persons to whom the Software is
    9 // furnished to do so, subject to the following conditions:
    10 //
    11 // The above copyright notice and this permission notice shall be included in
    12 // all copies or substantial portions of the Software.
    13 //
    14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    20 // THE SOFTWARE.
    21 //
    22 
    23 #ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H
    24 #define AMD_VULKAN_MEMORY_ALLOCATOR_H
    25 
    26 #ifdef __cplusplus
    27 extern "C" {
    28 #endif
    29 
    1342 #include <vulkan/vulkan.h>
    1343 
    1344 #if !defined(VMA_DEDICATED_ALLOCATION)
    1345  #if VK_KHR_get_memory_requirements2 && VK_KHR_dedicated_allocation
    1346  #define VMA_DEDICATED_ALLOCATION 1
    1347  #else
    1348  #define VMA_DEDICATED_ALLOCATION 0
    1349  #endif
    1350 #endif
    1351 
    1361 VK_DEFINE_HANDLE(VmaAllocator)
    1362 
    1363 typedef void (VKAPI_PTR *PFN_vmaAllocateDeviceMemoryFunction)(
    1365  VmaAllocator allocator,
    1366  uint32_t memoryType,
    1367  VkDeviceMemory memory,
    1368  VkDeviceSize size);
    1370 typedef void (VKAPI_PTR *PFN_vmaFreeDeviceMemoryFunction)(
    1371  VmaAllocator allocator,
    1372  uint32_t memoryType,
    1373  VkDeviceMemory memory,
    1374  VkDeviceSize size);
    1375 
    1383 typedef struct VmaDeviceMemoryCallbacks {
    1385  PFN_vmaAllocateDeviceMemoryFunction pfnAllocate;
    1387  PFN_vmaFreeDeviceMemoryFunction pfnFree;
    1388 } VmaDeviceMemoryCallbacks;
    1389 
    1391 typedef enum VmaAllocatorCreateFlagBits {
    1396  VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT = 0x00000001,
    1418  VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT = 0x00000002,
    1419 
    1420  VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1421 } VmaAllocatorCreateFlagBits;
    1422 typedef VkFlags VmaAllocatorCreateFlags;
    1423 
    1428 typedef struct VmaVulkanFunctions {
    1429  PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties;
    1430  PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties;
    1431  PFN_vkAllocateMemory vkAllocateMemory;
    1432  PFN_vkFreeMemory vkFreeMemory;
    1433  PFN_vkMapMemory vkMapMemory;
    1434  PFN_vkUnmapMemory vkUnmapMemory;
    1435  PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges;
    1436  PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges;
    1437  PFN_vkBindBufferMemory vkBindBufferMemory;
    1438  PFN_vkBindImageMemory vkBindImageMemory;
    1439  PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements;
    1440  PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements;
    1441  PFN_vkCreateBuffer vkCreateBuffer;
    1442  PFN_vkDestroyBuffer vkDestroyBuffer;
    1443  PFN_vkCreateImage vkCreateImage;
    1444  PFN_vkDestroyImage vkDestroyImage;
    1445 #if VMA_DEDICATED_ALLOCATION
    1446  PFN_vkGetBufferMemoryRequirements2KHR vkGetBufferMemoryRequirements2KHR;
    1447  PFN_vkGetImageMemoryRequirements2KHR vkGetImageMemoryRequirements2KHR;
    1448 #endif
    1449 } VmaVulkanFunctions;
    1450 
    1452 typedef enum VmaRecordFlagBits {
    1458  VMA_RECORD_FLUSH_AFTER_CALL_BIT = 0x00000001,
    1459 
    1460  VMA_RECORD_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1461 } VmaRecordFlagBits;
    1462 typedef VkFlags VmaRecordFlags;
    1463 
    1464 /*
    1465 Define this macro to 0/1 to disable/enable support for recording functionality,
    1466 available through VmaAllocatorCreateInfo::pRecordSettings.
    1467 */
    1468 #ifndef VMA_RECORDING_ENABLED
    1469  #ifdef _WIN32
    1470  #define VMA_RECORDING_ENABLED 1
    1471  #else
    1472  #define VMA_RECORDING_ENABLED 0
    1473  #endif
    1474 #endif
    1475 
    1477 typedef struct VmaRecordSettings
    1478 {
    1480  VmaRecordFlags flags;
    1488  const char* pFilePath;
    1489 } VmaRecordSettings;
    1490 
    1492 typedef struct VmaAllocatorCreateInfo
    1493 {
    1495  VmaAllocatorCreateFlags flags;
    1497 
    1498  VkPhysicalDevice physicalDevice;
    1500 
    1501  VkDevice device;
    1503 
    1504  VkDeviceSize preferredLargeHeapBlockSize;
    1506 
    1507  const VkAllocationCallbacks* pAllocationCallbacks;
    1509 
    1510  const VmaDeviceMemoryCallbacks* pDeviceMemoryCallbacks;
    1524  uint32_t frameInUseCount;
    1548  const VkDeviceSize* pHeapSizeLimit;
    1560  const VmaVulkanFunctions* pVulkanFunctions;
    1567  const VmaRecordSettings* pRecordSettings;
    1568 } VmaAllocatorCreateInfo;
    1569 
    1571 VkResult vmaCreateAllocator(
    1572  const VmaAllocatorCreateInfo* pCreateInfo,
    1573  VmaAllocator* pAllocator);
    1574 
    1576 void vmaDestroyAllocator(
    1577  VmaAllocator allocator);
    1578 
    1583 void vmaGetPhysicalDeviceProperties(
    1584  VmaAllocator allocator,
    1585  const VkPhysicalDeviceProperties** ppPhysicalDeviceProperties);
    1586 
    1591 void vmaGetMemoryProperties(
    1592  VmaAllocator allocator,
    1593  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties);
    1594 
    1601 void vmaGetMemoryTypeProperties(
    1602  VmaAllocator allocator,
    1603  uint32_t memoryTypeIndex,
    1604  VkMemoryPropertyFlags* pFlags);
    1605 
    1614 void vmaSetCurrentFrameIndex(
    1615  VmaAllocator allocator,
    1616  uint32_t frameIndex);
    1617 
    1620 typedef struct VmaStatInfo
    1621 {
    1623  uint32_t blockCount;
    1625  uint32_t allocationCount;
    1627  uint32_t unusedRangeCount;
    1629  VkDeviceSize usedBytes;
    1631  VkDeviceSize unusedBytes;
    1632  VkDeviceSize allocationSizeMin, allocationSizeAvg, allocationSizeMax;
    1633  VkDeviceSize unusedRangeSizeMin, unusedRangeSizeAvg, unusedRangeSizeMax;
    1634 } VmaStatInfo;
    1635 
    1637 typedef struct VmaStats
    1638 {
    1639  VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES];
    1640  VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS];
    1641  VmaStatInfo total;
    1642 } VmaStats;
    1643 
    1645 void vmaCalculateStats(
    1646  VmaAllocator allocator,
    1647  VmaStats* pStats);
    1648 
    1649 #define VMA_STATS_STRING_ENABLED 1
    1650 
    1651 #if VMA_STATS_STRING_ENABLED
    1652 
    1654 
    1656 void vmaBuildStatsString(
    1657  VmaAllocator allocator,
    1658  char** ppStatsString,
    1659  VkBool32 detailedMap);
    1660 
    1661 void vmaFreeStatsString(
    1662  VmaAllocator allocator,
    1663  char* pStatsString);
    1664 
    1665 #endif // #if VMA_STATS_STRING_ENABLED
    1666 
    1675 VK_DEFINE_HANDLE(VmaPool)
    1676 
    1677 typedef enum VmaMemoryUsage
    1678 {
    1682  VMA_MEMORY_USAGE_UNKNOWN = 0,
    1699  VMA_MEMORY_USAGE_GPU_ONLY = 1,
    1709  VMA_MEMORY_USAGE_CPU_ONLY = 2,
    1716  VMA_MEMORY_USAGE_CPU_TO_GPU = 3,
    1725  VMA_MEMORY_USAGE_GPU_TO_CPU = 4,
    1726  VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF
    1727 } VmaMemoryUsage;
    1728 
    1730 typedef enum VmaAllocationCreateFlagBits {
    1742  VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT = 0x00000001,
    1743 
    1753  VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT = 0x00000002,
    1766  VMA_ALLOCATION_CREATE_MAPPED_BIT = 0x00000004,
    1779  VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT = 0x00000008,
    1786  VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT = 0x00000010,
    1792  VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT = 0x00000020,
    1797  VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = 0x00000040,
    1798 
    1799  VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1800 } VmaAllocationCreateFlagBits;
    1801 typedef VkFlags VmaAllocationCreateFlags;
    1802 
    1803 typedef struct VmaAllocationCreateInfo
    1804 {
    1806  VmaAllocationCreateFlags flags;
    1812  VmaMemoryUsage usage;
    1817  VkMemoryPropertyFlags requiredFlags;
    1822  VkMemoryPropertyFlags preferredFlags;
    1830  uint32_t memoryTypeBits;
    1836  VmaPool pool;
    1843  void* pUserData;
    1844 } VmaAllocationCreateInfo;
    1845 
    1862 VkResult vmaFindMemoryTypeIndex(
    1863  VmaAllocator allocator,
    1864  uint32_t memoryTypeBits,
    1865  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1866  uint32_t* pMemoryTypeIndex);
    1867 
    1880 VkResult vmaFindMemoryTypeIndexForBufferInfo(
    1881  VmaAllocator allocator,
    1882  const VkBufferCreateInfo* pBufferCreateInfo,
    1883  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1884  uint32_t* pMemoryTypeIndex);
    1885 
    1898 VkResult vmaFindMemoryTypeIndexForImageInfo(
    1899  VmaAllocator allocator,
    1900  const VkImageCreateInfo* pImageCreateInfo,
    1901  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1902  uint32_t* pMemoryTypeIndex);
    1903 
    1905 typedef enum VmaPoolCreateFlagBits {
    1923  VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002,
    1924 
    1938  VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004,
    1939 
    1940  VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1941 } VmaPoolCreateFlagBits;
    1942 typedef VkFlags VmaPoolCreateFlags;
    1943 
    1946 typedef struct VmaPoolCreateInfo {
    1949  uint32_t memoryTypeIndex;
    1952  VmaPoolCreateFlags flags;
    1957  VkDeviceSize blockSize;
    1962  size_t minBlockCount;
    1971  size_t maxBlockCount;
    1985  uint32_t frameInUseCount;
    1986 } VmaPoolCreateInfo;
    1987 
    1990 typedef struct VmaPoolStats {
    1993  VkDeviceSize size;
    1996  VkDeviceSize unusedSize;
    1999  size_t allocationCount;
    2002  size_t unusedRangeCount;
    2009  VkDeviceSize unusedRangeSizeMax;
    2010 } VmaPoolStats;
    2011 
    2018 VkResult vmaCreatePool(
    2019  VmaAllocator allocator,
    2020  const VmaPoolCreateInfo* pCreateInfo,
    2021  VmaPool* pPool);
    2022 
    2025 void vmaDestroyPool(
    2026  VmaAllocator allocator,
    2027  VmaPool pool);
    2028 
    2035 void vmaGetPoolStats(
    2036  VmaAllocator allocator,
    2037  VmaPool pool,
    2038  VmaPoolStats* pPoolStats);
    2039 
    2046 void vmaMakePoolAllocationsLost(
    2047  VmaAllocator allocator,
    2048  VmaPool pool,
    2049  size_t* pLostAllocationCount);
    2050 
    2065 VkResult vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool);
    2066 
    2091 VK_DEFINE_HANDLE(VmaAllocation)
    2092 
    2093 
    2095 typedef struct VmaAllocationInfo {
    2100  uint32_t memoryType;
    2109  VkDeviceMemory deviceMemory;
    2114  VkDeviceSize offset;
    2119  VkDeviceSize size;
    2128  void* pMappedData;
    2133  void* pUserData;
    2134 } VmaAllocationInfo;
    2135 
    2146 VkResult vmaAllocateMemory(
    2147  VmaAllocator allocator,
    2148  const VkMemoryRequirements* pVkMemoryRequirements,
    2149  const VmaAllocationCreateInfo* pCreateInfo,
    2150  VmaAllocation* pAllocation,
    2151  VmaAllocationInfo* pAllocationInfo);
    2152 
    2159 VkResult vmaAllocateMemoryForBuffer(
    2160  VmaAllocator allocator,
    2161  VkBuffer buffer,
    2162  const VmaAllocationCreateInfo* pCreateInfo,
    2163  VmaAllocation* pAllocation,
    2164  VmaAllocationInfo* pAllocationInfo);
    2165 
    2167 VkResult vmaAllocateMemoryForImage(
    2168  VmaAllocator allocator,
    2169  VkImage image,
    2170  const VmaAllocationCreateInfo* pCreateInfo,
    2171  VmaAllocation* pAllocation,
    2172  VmaAllocationInfo* pAllocationInfo);
    2173 
    2175 void vmaFreeMemory(
    2176  VmaAllocator allocator,
    2177  VmaAllocation allocation);
    2178 
    2195 void vmaGetAllocationInfo(
    2196  VmaAllocator allocator,
    2197  VmaAllocation allocation,
    2198  VmaAllocationInfo* pAllocationInfo);
    2199 
    2214 VkBool32 vmaTouchAllocation(
    2215  VmaAllocator allocator,
    2216  VmaAllocation allocation);
    2217 
    2231 void vmaSetAllocationUserData(
    2232  VmaAllocator allocator,
    2233  VmaAllocation allocation,
    2234  void* pUserData);
    2235 
    2246 void vmaCreateLostAllocation(
    2247  VmaAllocator allocator,
    2248  VmaAllocation* pAllocation);
    2249 
    2284 VkResult vmaMapMemory(
    2285  VmaAllocator allocator,
    2286  VmaAllocation allocation,
    2287  void** ppData);
    2288 
    2293 void vmaUnmapMemory(
    2294  VmaAllocator allocator,
    2295  VmaAllocation allocation);
    2296 
    2309 void vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    2310 
    2323 void vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    2324 
    2341 VkResult vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits);
    2342 
    2344 typedef struct VmaDefragmentationInfo {
    2349  VkDeviceSize maxBytesToMove;
    2354  uint32_t maxAllocationsToMove;
    2355 } VmaDefragmentationInfo;
    2356 
    2358 typedef struct VmaDefragmentationStats {
    2360  VkDeviceSize bytesMoved;
    2362  VkDeviceSize bytesFreed;
    2364  uint32_t allocationsMoved;
    2366  uint32_t deviceMemoryBlocksFreed;
    2367 } VmaDefragmentationStats;
    2368 
    2455 VkResult vmaDefragment(
    2456  VmaAllocator allocator,
    2457  VmaAllocation* pAllocations,
    2458  size_t allocationCount,
    2459  VkBool32* pAllocationsChanged,
    2460  const VmaDefragmentationInfo *pDefragmentationInfo,
    2461  VmaDefragmentationStats* pDefragmentationStats);
    2462 
    2475 VkResult vmaBindBufferMemory(
    2476  VmaAllocator allocator,
    2477  VmaAllocation allocation,
    2478  VkBuffer buffer);
    2479 
    2492 VkResult vmaBindImageMemory(
    2493  VmaAllocator allocator,
    2494  VmaAllocation allocation,
    2495  VkImage image);
    2496 
    2523 VkResult vmaCreateBuffer(
    2524  VmaAllocator allocator,
    2525  const VkBufferCreateInfo* pBufferCreateInfo,
    2526  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    2527  VkBuffer* pBuffer,
    2528  VmaAllocation* pAllocation,
    2529  VmaAllocationInfo* pAllocationInfo);
    2530 
    2542 void vmaDestroyBuffer(
    2543  VmaAllocator allocator,
    2544  VkBuffer buffer,
    2545  VmaAllocation allocation);
    2546 
    2548 VkResult vmaCreateImage(
    2549  VmaAllocator allocator,
    2550  const VkImageCreateInfo* pImageCreateInfo,
    2551  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    2552  VkImage* pImage,
    2553  VmaAllocation* pAllocation,
    2554  VmaAllocationInfo* pAllocationInfo);
    2555 
    2567 void vmaDestroyImage(
    2568  VmaAllocator allocator,
    2569  VkImage image,
    2570  VmaAllocation allocation);
    2571 
    2572 #ifdef __cplusplus
    2573 }
    2574 #endif
    2575 
    2576 #endif // AMD_VULKAN_MEMORY_ALLOCATOR_H
    2577 
    2578 // For Visual Studio IntelliSense.
    2579 #if defined(__cplusplus) && defined(__INTELLISENSE__)
    2580 #define VMA_IMPLEMENTATION
    2581 #endif
    2582 
    2583 #ifdef VMA_IMPLEMENTATION
    2584 #undef VMA_IMPLEMENTATION
    2585 
    2586 #include <cstdint>
    2587 #include <cstdlib>
    2588 #include <cstring>
    2589 
    2590 /*******************************************************************************
    2591 CONFIGURATION SECTION
    2592 
    2593 Define some of these macros before each #include of this header or change them
    2594 here if you need other then default behavior depending on your environment.
    2595 */
    2596 
    2597 /*
    2598 Define this macro to 1 to make the library fetch pointers to Vulkan functions
    2599 internally, like:
    2600 
    2601  vulkanFunctions.vkAllocateMemory = &vkAllocateMemory;
    2602 
    2603 Define to 0 if you are going to provide you own pointers to Vulkan functions via
    2604 VmaAllocatorCreateInfo::pVulkanFunctions.
    2605 */
    2606 #if !defined(VMA_STATIC_VULKAN_FUNCTIONS) && !defined(VK_NO_PROTOTYPES)
    2607 #define VMA_STATIC_VULKAN_FUNCTIONS 1
    2608 #endif
    2609 
    2610 // Define this macro to 1 to make the library use STL containers instead of its own implementation.
    2611 //#define VMA_USE_STL_CONTAINERS 1
    2612 
    2613 /* Set this macro to 1 to make the library including and using STL containers:
    2614 std::pair, std::vector, std::list, std::unordered_map.
    2615 
    2616 Set it to 0 or undefined to make the library using its own implementation of
    2617 the containers.
    2618 */
    2619 #if VMA_USE_STL_CONTAINERS
    2620  #define VMA_USE_STL_VECTOR 1
    2621  #define VMA_USE_STL_UNORDERED_MAP 1
    2622  #define VMA_USE_STL_LIST 1
    2623 #endif
    2624 
    2625 #if VMA_USE_STL_VECTOR
    2626  #include <vector>
    2627 #endif
    2628 
    2629 #if VMA_USE_STL_UNORDERED_MAP
    2630  #include <unordered_map>
    2631 #endif
    2632 
    2633 #if VMA_USE_STL_LIST
    2634  #include <list>
    2635 #endif
    2636 
    2637 /*
    2638 Following headers are used in this CONFIGURATION section only, so feel free to
    2639 remove them if not needed.
    2640 */
    2641 #include <cassert> // for assert
    2642 #include <algorithm> // for min, max
    2643 #include <mutex> // for std::mutex
    2644 #include <atomic> // for std::atomic
    2645 
    2646 #ifndef VMA_NULL
    2647  // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
    2648  #define VMA_NULL nullptr
    2649 #endif
    2650 
    2651 #if defined(__APPLE__) || defined(__ANDROID__)
    2652 #include <cstdlib>
    2653 void *aligned_alloc(size_t alignment, size_t size)
    2654 {
    2655  // alignment must be >= sizeof(void*)
    2656  if(alignment < sizeof(void*))
    2657  {
    2658  alignment = sizeof(void*);
    2659  }
    2660 
    2661  void *pointer;
    2662  if(posix_memalign(&pointer, alignment, size) == 0)
    2663  return pointer;
    2664  return VMA_NULL;
    2665 }
    2666 #endif
    2667 
    2668 // If your compiler is not compatible with C++11 and definition of
    2669 // aligned_alloc() function is missing, uncommeting following line may help:
    2670 
    2671 //#include <malloc.h>
    2672 
    2673 // Normal assert to check for programmer's errors, especially in Debug configuration.
    2674 #ifndef VMA_ASSERT
    2675  #ifdef _DEBUG
    2676  #define VMA_ASSERT(expr) assert(expr)
    2677  #else
    2678  #define VMA_ASSERT(expr)
    2679  #endif
    2680 #endif
    2681 
    2682 // Assert that will be called very often, like inside data structures e.g. operator[].
    2683 // Making it non-empty can make program slow.
    2684 #ifndef VMA_HEAVY_ASSERT
    2685  #ifdef _DEBUG
    2686  #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr)
    2687  #else
    2688  #define VMA_HEAVY_ASSERT(expr)
    2689  #endif
    2690 #endif
    2691 
    2692 #ifndef VMA_ALIGN_OF
    2693  #define VMA_ALIGN_OF(type) (__alignof(type))
    2694 #endif
    2695 
    2696 #ifndef VMA_SYSTEM_ALIGNED_MALLOC
    2697  #if defined(_WIN32)
    2698  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (_aligned_malloc((size), (alignment)))
    2699  #else
    2700  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (aligned_alloc((alignment), (size) ))
    2701  #endif
    2702 #endif
    2703 
    2704 #ifndef VMA_SYSTEM_FREE
    2705  #if defined(_WIN32)
    2706  #define VMA_SYSTEM_FREE(ptr) _aligned_free(ptr)
    2707  #else
    2708  #define VMA_SYSTEM_FREE(ptr) free(ptr)
    2709  #endif
    2710 #endif
    2711 
    2712 #ifndef VMA_MIN
    2713  #define VMA_MIN(v1, v2) (std::min((v1), (v2)))
    2714 #endif
    2715 
    2716 #ifndef VMA_MAX
    2717  #define VMA_MAX(v1, v2) (std::max((v1), (v2)))
    2718 #endif
    2719 
    2720 #ifndef VMA_SWAP
    2721  #define VMA_SWAP(v1, v2) std::swap((v1), (v2))
    2722 #endif
    2723 
    2724 #ifndef VMA_SORT
    2725  #define VMA_SORT(beg, end, cmp) std::sort(beg, end, cmp)
    2726 #endif
    2727 
    2728 #ifndef VMA_DEBUG_LOG
    2729  #define VMA_DEBUG_LOG(format, ...)
    2730  /*
    2731  #define VMA_DEBUG_LOG(format, ...) do { \
    2732  printf(format, __VA_ARGS__); \
    2733  printf("\n"); \
    2734  } while(false)
    2735  */
    2736 #endif
    2737 
    2738 // Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString.
    2739 #if VMA_STATS_STRING_ENABLED
    2740  static inline void VmaUint32ToStr(char* outStr, size_t strLen, uint32_t num)
    2741  {
    2742  snprintf(outStr, strLen, "%u", static_cast<unsigned int>(num));
    2743  }
    2744  static inline void VmaUint64ToStr(char* outStr, size_t strLen, uint64_t num)
    2745  {
    2746  snprintf(outStr, strLen, "%llu", static_cast<unsigned long long>(num));
    2747  }
    2748  static inline void VmaPtrToStr(char* outStr, size_t strLen, const void* ptr)
    2749  {
    2750  snprintf(outStr, strLen, "%p", ptr);
    2751  }
    2752 #endif
    2753 
    2754 #ifndef VMA_MUTEX
    2755  class VmaMutex
    2756  {
    2757  public:
    2758  VmaMutex() { }
    2759  ~VmaMutex() { }
    2760  void Lock() { m_Mutex.lock(); }
    2761  void Unlock() { m_Mutex.unlock(); }
    2762  private:
    2763  std::mutex m_Mutex;
    2764  };
    2765  #define VMA_MUTEX VmaMutex
    2766 #endif
    2767 
    2768 /*
    2769 If providing your own implementation, you need to implement a subset of std::atomic:
    2770 
    2771 - Constructor(uint32_t desired)
    2772 - uint32_t load() const
    2773 - void store(uint32_t desired)
    2774 - bool compare_exchange_weak(uint32_t& expected, uint32_t desired)
    2775 */
    2776 #ifndef VMA_ATOMIC_UINT32
    2777  #define VMA_ATOMIC_UINT32 std::atomic<uint32_t>
    2778 #endif
    2779 
    2780 #ifndef VMA_BEST_FIT
    2781 
    2793  #define VMA_BEST_FIT (1)
    2794 #endif
    2795 
    2796 #ifndef VMA_DEBUG_ALWAYS_DEDICATED_MEMORY
    2797 
    2801  #define VMA_DEBUG_ALWAYS_DEDICATED_MEMORY (0)
    2802 #endif
    2803 
    2804 #ifndef VMA_DEBUG_ALIGNMENT
    2805 
    2809  #define VMA_DEBUG_ALIGNMENT (1)
    2810 #endif
    2811 
    2812 #ifndef VMA_DEBUG_MARGIN
    2813 
    2817  #define VMA_DEBUG_MARGIN (0)
    2818 #endif
    2819 
    2820 #ifndef VMA_DEBUG_INITIALIZE_ALLOCATIONS
    2821 
    2825  #define VMA_DEBUG_INITIALIZE_ALLOCATIONS (0)
    2826 #endif
    2827 
    2828 #ifndef VMA_DEBUG_DETECT_CORRUPTION
    2829 
    2834  #define VMA_DEBUG_DETECT_CORRUPTION (0)
    2835 #endif
    2836 
    2837 #ifndef VMA_DEBUG_GLOBAL_MUTEX
    2838 
    2842  #define VMA_DEBUG_GLOBAL_MUTEX (0)
    2843 #endif
    2844 
    2845 #ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY
    2846 
    2850  #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1)
    2851 #endif
    2852 
    2853 #ifndef VMA_SMALL_HEAP_MAX_SIZE
    2854  #define VMA_SMALL_HEAP_MAX_SIZE (1024ull * 1024 * 1024)
    2856 #endif
    2857 
    2858 #ifndef VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE
    2859  #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256ull * 1024 * 1024)
    2861 #endif
    2862 
    2863 #ifndef VMA_CLASS_NO_COPY
    2864  #define VMA_CLASS_NO_COPY(className) \
    2865  private: \
    2866  className(const className&) = delete; \
    2867  className& operator=(const className&) = delete;
    2868 #endif
    2869 
    2870 static const uint32_t VMA_FRAME_INDEX_LOST = UINT32_MAX;
    2871 
    2872 // Decimal 2139416166, float NaN, little-endian binary 66 E6 84 7F.
    2873 static const uint32_t VMA_CORRUPTION_DETECTION_MAGIC_VALUE = 0x7F84E666;
    2874 
    2875 static const uint8_t VMA_ALLOCATION_FILL_PATTERN_CREATED = 0xDC;
    2876 static const uint8_t VMA_ALLOCATION_FILL_PATTERN_DESTROYED = 0xEF;
    2877 
    2878 /*******************************************************************************
    2879 END OF CONFIGURATION
    2880 */
    2881 
    2882 static VkAllocationCallbacks VmaEmptyAllocationCallbacks = {
    2883  VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL };
    2884 
    2885 // Returns number of bits set to 1 in (v).
    2886 static inline uint32_t VmaCountBitsSet(uint32_t v)
    2887 {
    2888  uint32_t c = v - ((v >> 1) & 0x55555555);
    2889  c = ((c >> 2) & 0x33333333) + (c & 0x33333333);
    2890  c = ((c >> 4) + c) & 0x0F0F0F0F;
    2891  c = ((c >> 8) + c) & 0x00FF00FF;
    2892  c = ((c >> 16) + c) & 0x0000FFFF;
    2893  return c;
    2894 }
    2895 
    2896 // Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16.
    2897 // Use types like uint32_t, uint64_t as T.
    2898 template <typename T>
    2899 static inline T VmaAlignUp(T val, T align)
    2900 {
    2901  return (val + align - 1) / align * align;
    2902 }
    2903 // Aligns given value down to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 8.
    2904 // Use types like uint32_t, uint64_t as T.
    2905 template <typename T>
    2906 static inline T VmaAlignDown(T val, T align)
    2907 {
    2908  return val / align * align;
    2909 }
    2910 
    2911 // Division with mathematical rounding to nearest number.
    2912 template <typename T>
    2913 inline T VmaRoundDiv(T x, T y)
    2914 {
    2915  return (x + (y / (T)2)) / y;
    2916 }
    2917 
    2918 static inline bool VmaStrIsEmpty(const char* pStr)
    2919 {
    2920  return pStr == VMA_NULL || *pStr == '\0';
    2921 }
    2922 
    2923 #ifndef VMA_SORT
    2924 
    2925 template<typename Iterator, typename Compare>
    2926 Iterator VmaQuickSortPartition(Iterator beg, Iterator end, Compare cmp)
    2927 {
    2928  Iterator centerValue = end; --centerValue;
    2929  Iterator insertIndex = beg;
    2930  for(Iterator memTypeIndex = beg; memTypeIndex < centerValue; ++memTypeIndex)
    2931  {
    2932  if(cmp(*memTypeIndex, *centerValue))
    2933  {
    2934  if(insertIndex != memTypeIndex)
    2935  {
    2936  VMA_SWAP(*memTypeIndex, *insertIndex);
    2937  }
    2938  ++insertIndex;
    2939  }
    2940  }
    2941  if(insertIndex != centerValue)
    2942  {
    2943  VMA_SWAP(*insertIndex, *centerValue);
    2944  }
    2945  return insertIndex;
    2946 }
    2947 
    2948 template<typename Iterator, typename Compare>
    2949 void VmaQuickSort(Iterator beg, Iterator end, Compare cmp)
    2950 {
    2951  if(beg < end)
    2952  {
    2953  Iterator it = VmaQuickSortPartition<Iterator, Compare>(beg, end, cmp);
    2954  VmaQuickSort<Iterator, Compare>(beg, it, cmp);
    2955  VmaQuickSort<Iterator, Compare>(it + 1, end, cmp);
    2956  }
    2957 }
    2958 
    2959 #define VMA_SORT(beg, end, cmp) VmaQuickSort(beg, end, cmp)
    2960 
    2961 #endif // #ifndef VMA_SORT
    2962 
    2963 /*
    2964 Returns true if two memory blocks occupy overlapping pages.
    2965 ResourceA must be in less memory offset than ResourceB.
    2966 
    2967 Algorithm is based on "Vulkan 1.0.39 - A Specification (with all registered Vulkan extensions)"
    2968 chapter 11.6 "Resource Memory Association", paragraph "Buffer-Image Granularity".
    2969 */
    2970 static inline bool VmaBlocksOnSamePage(
    2971  VkDeviceSize resourceAOffset,
    2972  VkDeviceSize resourceASize,
    2973  VkDeviceSize resourceBOffset,
    2974  VkDeviceSize pageSize)
    2975 {
    2976  VMA_ASSERT(resourceAOffset + resourceASize <= resourceBOffset && resourceASize > 0 && pageSize > 0);
    2977  VkDeviceSize resourceAEnd = resourceAOffset + resourceASize - 1;
    2978  VkDeviceSize resourceAEndPage = resourceAEnd & ~(pageSize - 1);
    2979  VkDeviceSize resourceBStart = resourceBOffset;
    2980  VkDeviceSize resourceBStartPage = resourceBStart & ~(pageSize - 1);
    2981  return resourceAEndPage == resourceBStartPage;
    2982 }
    2983 
    2984 enum VmaSuballocationType
    2985 {
    2986  VMA_SUBALLOCATION_TYPE_FREE = 0,
    2987  VMA_SUBALLOCATION_TYPE_UNKNOWN = 1,
    2988  VMA_SUBALLOCATION_TYPE_BUFFER = 2,
    2989  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN = 3,
    2990  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR = 4,
    2991  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL = 5,
    2992  VMA_SUBALLOCATION_TYPE_MAX_ENUM = 0x7FFFFFFF
    2993 };
    2994 
    2995 /*
    2996 Returns true if given suballocation types could conflict and must respect
    2997 VkPhysicalDeviceLimits::bufferImageGranularity. They conflict if one is buffer
    2998 or linear image and another one is optimal image. If type is unknown, behave
    2999 conservatively.
    3000 */
    3001 static inline bool VmaIsBufferImageGranularityConflict(
    3002  VmaSuballocationType suballocType1,
    3003  VmaSuballocationType suballocType2)
    3004 {
    3005  if(suballocType1 > suballocType2)
    3006  {
    3007  VMA_SWAP(suballocType1, suballocType2);
    3008  }
    3009 
    3010  switch(suballocType1)
    3011  {
    3012  case VMA_SUBALLOCATION_TYPE_FREE:
    3013  return false;
    3014  case VMA_SUBALLOCATION_TYPE_UNKNOWN:
    3015  return true;
    3016  case VMA_SUBALLOCATION_TYPE_BUFFER:
    3017  return
    3018  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
    3019  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3020  case VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN:
    3021  return
    3022  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
    3023  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR ||
    3024  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3025  case VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR:
    3026  return
    3027  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3028  case VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL:
    3029  return false;
    3030  default:
    3031  VMA_ASSERT(0);
    3032  return true;
    3033  }
    3034 }
    3035 
    3036 static void VmaWriteMagicValue(void* pData, VkDeviceSize offset)
    3037 {
    3038  uint32_t* pDst = (uint32_t*)((char*)pData + offset);
    3039  const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
    3040  for(size_t i = 0; i < numberCount; ++i, ++pDst)
    3041  {
    3042  *pDst = VMA_CORRUPTION_DETECTION_MAGIC_VALUE;
    3043  }
    3044 }
    3045 
    3046 static bool VmaValidateMagicValue(const void* pData, VkDeviceSize offset)
    3047 {
    3048  const uint32_t* pSrc = (const uint32_t*)((const char*)pData + offset);
    3049  const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
    3050  for(size_t i = 0; i < numberCount; ++i, ++pSrc)
    3051  {
    3052  if(*pSrc != VMA_CORRUPTION_DETECTION_MAGIC_VALUE)
    3053  {
    3054  return false;
    3055  }
    3056  }
    3057  return true;
    3058 }
    3059 
    3060 // Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
    3061 struct VmaMutexLock
    3062 {
    3063  VMA_CLASS_NO_COPY(VmaMutexLock)
    3064 public:
    3065  VmaMutexLock(VMA_MUTEX& mutex, bool useMutex) :
    3066  m_pMutex(useMutex ? &mutex : VMA_NULL)
    3067  {
    3068  if(m_pMutex)
    3069  {
    3070  m_pMutex->Lock();
    3071  }
    3072  }
    3073 
    3074  ~VmaMutexLock()
    3075  {
    3076  if(m_pMutex)
    3077  {
    3078  m_pMutex->Unlock();
    3079  }
    3080  }
    3081 
    3082 private:
    3083  VMA_MUTEX* m_pMutex;
    3084 };
    3085 
    3086 #if VMA_DEBUG_GLOBAL_MUTEX
    3087  static VMA_MUTEX gDebugGlobalMutex;
    3088  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex, true);
    3089 #else
    3090  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK
    3091 #endif
    3092 
    3093 // Minimum size of a free suballocation to register it in the free suballocation collection.
    3094 static const VkDeviceSize VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER = 16;
    3095 
    3096 /*
    3097 Performs binary search and returns iterator to first element that is greater or
    3098 equal to (key), according to comparison (cmp).
    3099 
    3100 Cmp should return true if first argument is less than second argument.
    3101 
    3102 Returned value is the found element, if present in the collection or place where
    3103 new element with value (key) should be inserted.
    3104 */
    3105 template <typename CmpLess, typename IterT, typename KeyT>
    3106 static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, CmpLess cmp)
    3107 {
    3108  size_t down = 0, up = (end - beg);
    3109  while(down < up)
    3110  {
    3111  const size_t mid = (down + up) / 2;
    3112  if(cmp(*(beg+mid), key))
    3113  {
    3114  down = mid + 1;
    3115  }
    3116  else
    3117  {
    3118  up = mid;
    3119  }
    3120  }
    3121  return beg + down;
    3122 }
    3123 
    3125 // Memory allocation
    3126 
    3127 static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment)
    3128 {
    3129  if((pAllocationCallbacks != VMA_NULL) &&
    3130  (pAllocationCallbacks->pfnAllocation != VMA_NULL))
    3131  {
    3132  return (*pAllocationCallbacks->pfnAllocation)(
    3133  pAllocationCallbacks->pUserData,
    3134  size,
    3135  alignment,
    3136  VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
    3137  }
    3138  else
    3139  {
    3140  return VMA_SYSTEM_ALIGNED_MALLOC(size, alignment);
    3141  }
    3142 }
    3143 
    3144 static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr)
    3145 {
    3146  if((pAllocationCallbacks != VMA_NULL) &&
    3147  (pAllocationCallbacks->pfnFree != VMA_NULL))
    3148  {
    3149  (*pAllocationCallbacks->pfnFree)(pAllocationCallbacks->pUserData, ptr);
    3150  }
    3151  else
    3152  {
    3153  VMA_SYSTEM_FREE(ptr);
    3154  }
    3155 }
    3156 
    3157 template<typename T>
    3158 static T* VmaAllocate(const VkAllocationCallbacks* pAllocationCallbacks)
    3159 {
    3160  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T), VMA_ALIGN_OF(T));
    3161 }
    3162 
    3163 template<typename T>
    3164 static T* VmaAllocateArray(const VkAllocationCallbacks* pAllocationCallbacks, size_t count)
    3165 {
    3166  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T) * count, VMA_ALIGN_OF(T));
    3167 }
    3168 
    3169 #define vma_new(allocator, type) new(VmaAllocate<type>(allocator))(type)
    3170 
    3171 #define vma_new_array(allocator, type, count) new(VmaAllocateArray<type>((allocator), (count)))(type)
    3172 
    3173 template<typename T>
    3174 static void vma_delete(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr)
    3175 {
    3176  ptr->~T();
    3177  VmaFree(pAllocationCallbacks, ptr);
    3178 }
    3179 
    3180 template<typename T>
    3181 static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr, size_t count)
    3182 {
    3183  if(ptr != VMA_NULL)
    3184  {
    3185  for(size_t i = count; i--; )
    3186  {
    3187  ptr[i].~T();
    3188  }
    3189  VmaFree(pAllocationCallbacks, ptr);
    3190  }
    3191 }
    3192 
    3193 // STL-compatible allocator.
    3194 template<typename T>
    3195 class VmaStlAllocator
    3196 {
    3197 public:
    3198  const VkAllocationCallbacks* const m_pCallbacks;
    3199  typedef T value_type;
    3200 
    3201  VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) { }
    3202  template<typename U> VmaStlAllocator(const VmaStlAllocator<U>& src) : m_pCallbacks(src.m_pCallbacks) { }
    3203 
    3204  T* allocate(size_t n) { return VmaAllocateArray<T>(m_pCallbacks, n); }
    3205  void deallocate(T* p, size_t n) { VmaFree(m_pCallbacks, p); }
    3206 
    3207  template<typename U>
    3208  bool operator==(const VmaStlAllocator<U>& rhs) const
    3209  {
    3210  return m_pCallbacks == rhs.m_pCallbacks;
    3211  }
    3212  template<typename U>
    3213  bool operator!=(const VmaStlAllocator<U>& rhs) const
    3214  {
    3215  return m_pCallbacks != rhs.m_pCallbacks;
    3216  }
    3217 
    3218  VmaStlAllocator& operator=(const VmaStlAllocator& x) = delete;
    3219 };
    3220 
    3221 #if VMA_USE_STL_VECTOR
    3222 
    3223 #define VmaVector std::vector
    3224 
    3225 template<typename T, typename allocatorT>
    3226 static void VmaVectorInsert(std::vector<T, allocatorT>& vec, size_t index, const T& item)
    3227 {
    3228  vec.insert(vec.begin() + index, item);
    3229 }
    3230 
    3231 template<typename T, typename allocatorT>
    3232 static void VmaVectorRemove(std::vector<T, allocatorT>& vec, size_t index)
    3233 {
    3234  vec.erase(vec.begin() + index);
    3235 }
    3236 
    3237 #else // #if VMA_USE_STL_VECTOR
    3238 
    3239 /* Class with interface compatible with subset of std::vector.
    3240 T must be POD because constructors and destructors are not called and memcpy is
    3241 used for these objects. */
    3242 template<typename T, typename AllocatorT>
    3243 class VmaVector
    3244 {
    3245 public:
    3246  typedef T value_type;
    3247 
    3248  VmaVector(const AllocatorT& allocator) :
    3249  m_Allocator(allocator),
    3250  m_pArray(VMA_NULL),
    3251  m_Count(0),
    3252  m_Capacity(0)
    3253  {
    3254  }
    3255 
    3256  VmaVector(size_t count, const AllocatorT& allocator) :
    3257  m_Allocator(allocator),
    3258  m_pArray(count ? (T*)VmaAllocateArray<T>(allocator.m_pCallbacks, count) : VMA_NULL),
    3259  m_Count(count),
    3260  m_Capacity(count)
    3261  {
    3262  }
    3263 
    3264  VmaVector(const VmaVector<T, AllocatorT>& src) :
    3265  m_Allocator(src.m_Allocator),
    3266  m_pArray(src.m_Count ? (T*)VmaAllocateArray<T>(src.m_Allocator.m_pCallbacks, src.m_Count) : VMA_NULL),
    3267  m_Count(src.m_Count),
    3268  m_Capacity(src.m_Count)
    3269  {
    3270  if(m_Count != 0)
    3271  {
    3272  memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
    3273  }
    3274  }
    3275 
    3276  ~VmaVector()
    3277  {
    3278  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3279  }
    3280 
    3281  VmaVector& operator=(const VmaVector<T, AllocatorT>& rhs)
    3282  {
    3283  if(&rhs != this)
    3284  {
    3285  resize(rhs.m_Count);
    3286  if(m_Count != 0)
    3287  {
    3288  memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
    3289  }
    3290  }
    3291  return *this;
    3292  }
    3293 
    3294  bool empty() const { return m_Count == 0; }
    3295  size_t size() const { return m_Count; }
    3296  T* data() { return m_pArray; }
    3297  const T* data() const { return m_pArray; }
    3298 
    3299  T& operator[](size_t index)
    3300  {
    3301  VMA_HEAVY_ASSERT(index < m_Count);
    3302  return m_pArray[index];
    3303  }
    3304  const T& operator[](size_t index) const
    3305  {
    3306  VMA_HEAVY_ASSERT(index < m_Count);
    3307  return m_pArray[index];
    3308  }
    3309 
    3310  T& front()
    3311  {
    3312  VMA_HEAVY_ASSERT(m_Count > 0);
    3313  return m_pArray[0];
    3314  }
    3315  const T& front() const
    3316  {
    3317  VMA_HEAVY_ASSERT(m_Count > 0);
    3318  return m_pArray[0];
    3319  }
    3320  T& back()
    3321  {
    3322  VMA_HEAVY_ASSERT(m_Count > 0);
    3323  return m_pArray[m_Count - 1];
    3324  }
    3325  const T& back() const
    3326  {
    3327  VMA_HEAVY_ASSERT(m_Count > 0);
    3328  return m_pArray[m_Count - 1];
    3329  }
    3330 
    3331  void reserve(size_t newCapacity, bool freeMemory = false)
    3332  {
    3333  newCapacity = VMA_MAX(newCapacity, m_Count);
    3334 
    3335  if((newCapacity < m_Capacity) && !freeMemory)
    3336  {
    3337  newCapacity = m_Capacity;
    3338  }
    3339 
    3340  if(newCapacity != m_Capacity)
    3341  {
    3342  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator, newCapacity) : VMA_NULL;
    3343  if(m_Count != 0)
    3344  {
    3345  memcpy(newArray, m_pArray, m_Count * sizeof(T));
    3346  }
    3347  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3348  m_Capacity = newCapacity;
    3349  m_pArray = newArray;
    3350  }
    3351  }
    3352 
    3353  void resize(size_t newCount, bool freeMemory = false)
    3354  {
    3355  size_t newCapacity = m_Capacity;
    3356  if(newCount > m_Capacity)
    3357  {
    3358  newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8));
    3359  }
    3360  else if(freeMemory)
    3361  {
    3362  newCapacity = newCount;
    3363  }
    3364 
    3365  if(newCapacity != m_Capacity)
    3366  {
    3367  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator.m_pCallbacks, newCapacity) : VMA_NULL;
    3368  const size_t elementsToCopy = VMA_MIN(m_Count, newCount);
    3369  if(elementsToCopy != 0)
    3370  {
    3371  memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
    3372  }
    3373  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3374  m_Capacity = newCapacity;
    3375  m_pArray = newArray;
    3376  }
    3377 
    3378  m_Count = newCount;
    3379  }
    3380 
    3381  void clear(bool freeMemory = false)
    3382  {
    3383  resize(0, freeMemory);
    3384  }
    3385 
    3386  void insert(size_t index, const T& src)
    3387  {
    3388  VMA_HEAVY_ASSERT(index <= m_Count);
    3389  const size_t oldCount = size();
    3390  resize(oldCount + 1);
    3391  if(index < oldCount)
    3392  {
    3393  memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
    3394  }
    3395  m_pArray[index] = src;
    3396  }
    3397 
    3398  void remove(size_t index)
    3399  {
    3400  VMA_HEAVY_ASSERT(index < m_Count);
    3401  const size_t oldCount = size();
    3402  if(index < oldCount - 1)
    3403  {
    3404  memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
    3405  }
    3406  resize(oldCount - 1);
    3407  }
    3408 
    3409  void push_back(const T& src)
    3410  {
    3411  const size_t newIndex = size();
    3412  resize(newIndex + 1);
    3413  m_pArray[newIndex] = src;
    3414  }
    3415 
    3416  void pop_back()
    3417  {
    3418  VMA_HEAVY_ASSERT(m_Count > 0);
    3419  resize(size() - 1);
    3420  }
    3421 
    3422  void push_front(const T& src)
    3423  {
    3424  insert(0, src);
    3425  }
    3426 
    3427  void pop_front()
    3428  {
    3429  VMA_HEAVY_ASSERT(m_Count > 0);
    3430  remove(0);
    3431  }
    3432 
    3433  typedef T* iterator;
    3434 
    3435  iterator begin() { return m_pArray; }
    3436  iterator end() { return m_pArray + m_Count; }
    3437 
    3438 private:
    3439  AllocatorT m_Allocator;
    3440  T* m_pArray;
    3441  size_t m_Count;
    3442  size_t m_Capacity;
    3443 };
    3444 
    3445 template<typename T, typename allocatorT>
    3446 static void VmaVectorInsert(VmaVector<T, allocatorT>& vec, size_t index, const T& item)
    3447 {
    3448  vec.insert(index, item);
    3449 }
    3450 
    3451 template<typename T, typename allocatorT>
    3452 static void VmaVectorRemove(VmaVector<T, allocatorT>& vec, size_t index)
    3453 {
    3454  vec.remove(index);
    3455 }
    3456 
    3457 #endif // #if VMA_USE_STL_VECTOR
    3458 
    3459 template<typename CmpLess, typename VectorT>
    3460 size_t VmaVectorInsertSorted(VectorT& vector, const typename VectorT::value_type& value)
    3461 {
    3462  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
    3463  vector.data(),
    3464  vector.data() + vector.size(),
    3465  value,
    3466  CmpLess()) - vector.data();
    3467  VmaVectorInsert(vector, indexToInsert, value);
    3468  return indexToInsert;
    3469 }
    3470 
    3471 template<typename CmpLess, typename VectorT>
    3472 bool VmaVectorRemoveSorted(VectorT& vector, const typename VectorT::value_type& value)
    3473 {
    3474  CmpLess comparator;
    3475  typename VectorT::iterator it = VmaBinaryFindFirstNotLess(
    3476  vector.begin(),
    3477  vector.end(),
    3478  value,
    3479  comparator);
    3480  if((it != vector.end()) && !comparator(*it, value) && !comparator(value, *it))
    3481  {
    3482  size_t indexToRemove = it - vector.begin();
    3483  VmaVectorRemove(vector, indexToRemove);
    3484  return true;
    3485  }
    3486  return false;
    3487 }
    3488 
    3489 template<typename CmpLess, typename IterT, typename KeyT>
    3490 IterT VmaVectorFindSorted(const IterT& beg, const IterT& end, const KeyT& value)
    3491 {
    3492  CmpLess comparator;
    3493  typename IterT it = VmaBinaryFindFirstNotLess<CmpLess, IterT, KeyT>(
    3494  beg, end, value, comparator);
    3495  if(it == end ||
    3496  !comparator(*it, value) && !comparator(value, *it))
    3497  {
    3498  return it;
    3499  }
    3500  return end;
    3501 }
    3502 
    3504 // class VmaPoolAllocator
    3505 
    3506 /*
    3507 Allocator for objects of type T using a list of arrays (pools) to speed up
    3508 allocation. Number of elements that can be allocated is not bounded because
    3509 allocator can create multiple blocks.
    3510 */
    3511 template<typename T>
    3512 class VmaPoolAllocator
    3513 {
    3514  VMA_CLASS_NO_COPY(VmaPoolAllocator)
    3515 public:
    3516  VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock);
    3517  ~VmaPoolAllocator();
    3518  void Clear();
    3519  T* Alloc();
    3520  void Free(T* ptr);
    3521 
    3522 private:
    3523  union Item
    3524  {
    3525  uint32_t NextFreeIndex;
    3526  T Value;
    3527  };
    3528 
    3529  struct ItemBlock
    3530  {
    3531  Item* pItems;
    3532  uint32_t FirstFreeIndex;
    3533  };
    3534 
    3535  const VkAllocationCallbacks* m_pAllocationCallbacks;
    3536  size_t m_ItemsPerBlock;
    3537  VmaVector< ItemBlock, VmaStlAllocator<ItemBlock> > m_ItemBlocks;
    3538 
    3539  ItemBlock& CreateNewBlock();
    3540 };
    3541 
    3542 template<typename T>
    3543 VmaPoolAllocator<T>::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock) :
    3544  m_pAllocationCallbacks(pAllocationCallbacks),
    3545  m_ItemsPerBlock(itemsPerBlock),
    3546  m_ItemBlocks(VmaStlAllocator<ItemBlock>(pAllocationCallbacks))
    3547 {
    3548  VMA_ASSERT(itemsPerBlock > 0);
    3549 }
    3550 
    3551 template<typename T>
    3552 VmaPoolAllocator<T>::~VmaPoolAllocator()
    3553 {
    3554  Clear();
    3555 }
    3556 
    3557 template<typename T>
    3558 void VmaPoolAllocator<T>::Clear()
    3559 {
    3560  for(size_t i = m_ItemBlocks.size(); i--; )
    3561  vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemsPerBlock);
    3562  m_ItemBlocks.clear();
    3563 }
    3564 
    3565 template<typename T>
    3566 T* VmaPoolAllocator<T>::Alloc()
    3567 {
    3568  for(size_t i = m_ItemBlocks.size(); i--; )
    3569  {
    3570  ItemBlock& block = m_ItemBlocks[i];
    3571  // This block has some free items: Use first one.
    3572  if(block.FirstFreeIndex != UINT32_MAX)
    3573  {
    3574  Item* const pItem = &block.pItems[block.FirstFreeIndex];
    3575  block.FirstFreeIndex = pItem->NextFreeIndex;
    3576  return &pItem->Value;
    3577  }
    3578  }
    3579 
    3580  // No block has free item: Create new one and use it.
    3581  ItemBlock& newBlock = CreateNewBlock();
    3582  Item* const pItem = &newBlock.pItems[0];
    3583  newBlock.FirstFreeIndex = pItem->NextFreeIndex;
    3584  return &pItem->Value;
    3585 }
    3586 
    3587 template<typename T>
    3588 void VmaPoolAllocator<T>::Free(T* ptr)
    3589 {
    3590  // Search all memory blocks to find ptr.
    3591  for(size_t i = 0; i < m_ItemBlocks.size(); ++i)
    3592  {
    3593  ItemBlock& block = m_ItemBlocks[i];
    3594 
    3595  // Casting to union.
    3596  Item* pItemPtr;
    3597  memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
    3598 
    3599  // Check if pItemPtr is in address range of this block.
    3600  if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + m_ItemsPerBlock))
    3601  {
    3602  const uint32_t index = static_cast<uint32_t>(pItemPtr - block.pItems);
    3603  pItemPtr->NextFreeIndex = block.FirstFreeIndex;
    3604  block.FirstFreeIndex = index;
    3605  return;
    3606  }
    3607  }
    3608  VMA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
    3609 }
    3610 
    3611 template<typename T>
    3612 typename VmaPoolAllocator<T>::ItemBlock& VmaPoolAllocator<T>::CreateNewBlock()
    3613 {
    3614  ItemBlock newBlock = {
    3615  vma_new_array(m_pAllocationCallbacks, Item, m_ItemsPerBlock), 0 };
    3616 
    3617  m_ItemBlocks.push_back(newBlock);
    3618 
    3619  // Setup singly-linked list of all free items in this block.
    3620  for(uint32_t i = 0; i < m_ItemsPerBlock - 1; ++i)
    3621  newBlock.pItems[i].NextFreeIndex = i + 1;
    3622  newBlock.pItems[m_ItemsPerBlock - 1].NextFreeIndex = UINT32_MAX;
    3623  return m_ItemBlocks.back();
    3624 }
    3625 
    3627 // class VmaRawList, VmaList
    3628 
    3629 #if VMA_USE_STL_LIST
    3630 
    3631 #define VmaList std::list
    3632 
    3633 #else // #if VMA_USE_STL_LIST
    3634 
    3635 template<typename T>
    3636 struct VmaListItem
    3637 {
    3638  VmaListItem* pPrev;
    3639  VmaListItem* pNext;
    3640  T Value;
    3641 };
    3642 
    3643 // Doubly linked list.
    3644 template<typename T>
    3645 class VmaRawList
    3646 {
    3647  VMA_CLASS_NO_COPY(VmaRawList)
    3648 public:
    3649  typedef VmaListItem<T> ItemType;
    3650 
    3651  VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks);
    3652  ~VmaRawList();
    3653  void Clear();
    3654 
    3655  size_t GetCount() const { return m_Count; }
    3656  bool IsEmpty() const { return m_Count == 0; }
    3657 
    3658  ItemType* Front() { return m_pFront; }
    3659  const ItemType* Front() const { return m_pFront; }
    3660  ItemType* Back() { return m_pBack; }
    3661  const ItemType* Back() const { return m_pBack; }
    3662 
    3663  ItemType* PushBack();
    3664  ItemType* PushFront();
    3665  ItemType* PushBack(const T& value);
    3666  ItemType* PushFront(const T& value);
    3667  void PopBack();
    3668  void PopFront();
    3669 
    3670  // Item can be null - it means PushBack.
    3671  ItemType* InsertBefore(ItemType* pItem);
    3672  // Item can be null - it means PushFront.
    3673  ItemType* InsertAfter(ItemType* pItem);
    3674 
    3675  ItemType* InsertBefore(ItemType* pItem, const T& value);
    3676  ItemType* InsertAfter(ItemType* pItem, const T& value);
    3677 
    3678  void Remove(ItemType* pItem);
    3679 
    3680 private:
    3681  const VkAllocationCallbacks* const m_pAllocationCallbacks;
    3682  VmaPoolAllocator<ItemType> m_ItemAllocator;
    3683  ItemType* m_pFront;
    3684  ItemType* m_pBack;
    3685  size_t m_Count;
    3686 };
    3687 
    3688 template<typename T>
    3689 VmaRawList<T>::VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks) :
    3690  m_pAllocationCallbacks(pAllocationCallbacks),
    3691  m_ItemAllocator(pAllocationCallbacks, 128),
    3692  m_pFront(VMA_NULL),
    3693  m_pBack(VMA_NULL),
    3694  m_Count(0)
    3695 {
    3696 }
    3697 
    3698 template<typename T>
    3699 VmaRawList<T>::~VmaRawList()
    3700 {
    3701  // Intentionally not calling Clear, because that would be unnecessary
    3702  // computations to return all items to m_ItemAllocator as free.
    3703 }
    3704 
    3705 template<typename T>
    3706 void VmaRawList<T>::Clear()
    3707 {
    3708  if(IsEmpty() == false)
    3709  {
    3710  ItemType* pItem = m_pBack;
    3711  while(pItem != VMA_NULL)
    3712  {
    3713  ItemType* const pPrevItem = pItem->pPrev;
    3714  m_ItemAllocator.Free(pItem);
    3715  pItem = pPrevItem;
    3716  }
    3717  m_pFront = VMA_NULL;
    3718  m_pBack = VMA_NULL;
    3719  m_Count = 0;
    3720  }
    3721 }
    3722 
    3723 template<typename T>
    3724 VmaListItem<T>* VmaRawList<T>::PushBack()
    3725 {
    3726  ItemType* const pNewItem = m_ItemAllocator.Alloc();
    3727  pNewItem->pNext = VMA_NULL;
    3728  if(IsEmpty())
    3729  {
    3730  pNewItem->pPrev = VMA_NULL;
    3731  m_pFront = pNewItem;
    3732  m_pBack = pNewItem;
    3733  m_Count = 1;
    3734  }
    3735  else
    3736  {
    3737  pNewItem->pPrev = m_pBack;
    3738  m_pBack->pNext = pNewItem;
    3739  m_pBack = pNewItem;
    3740  ++m_Count;
    3741  }
    3742  return pNewItem;
    3743 }
    3744 
    3745 template<typename T>
    3746 VmaListItem<T>* VmaRawList<T>::PushFront()
    3747 {
    3748  ItemType* const pNewItem = m_ItemAllocator.Alloc();
    3749  pNewItem->pPrev = VMA_NULL;
    3750  if(IsEmpty())
    3751  {
    3752  pNewItem->pNext = VMA_NULL;
    3753  m_pFront = pNewItem;
    3754  m_pBack = pNewItem;
    3755  m_Count = 1;
    3756  }
    3757  else
    3758  {
    3759  pNewItem->pNext = m_pFront;
    3760  m_pFront->pPrev = pNewItem;
    3761  m_pFront = pNewItem;
    3762  ++m_Count;
    3763  }
    3764  return pNewItem;
    3765 }
    3766 
    3767 template<typename T>
    3768 VmaListItem<T>* VmaRawList<T>::PushBack(const T& value)
    3769 {
    3770  ItemType* const pNewItem = PushBack();
    3771  pNewItem->Value = value;
    3772  return pNewItem;
    3773 }
    3774 
    3775 template<typename T>
    3776 VmaListItem<T>* VmaRawList<T>::PushFront(const T& value)
    3777 {
    3778  ItemType* const pNewItem = PushFront();
    3779  pNewItem->Value = value;
    3780  return pNewItem;
    3781 }
    3782 
    3783 template<typename T>
    3784 void VmaRawList<T>::PopBack()
    3785 {
    3786  VMA_HEAVY_ASSERT(m_Count > 0);
    3787  ItemType* const pBackItem = m_pBack;
    3788  ItemType* const pPrevItem = pBackItem->pPrev;
    3789  if(pPrevItem != VMA_NULL)
    3790  {
    3791  pPrevItem->pNext = VMA_NULL;
    3792  }
    3793  m_pBack = pPrevItem;
    3794  m_ItemAllocator.Free(pBackItem);
    3795  --m_Count;
    3796 }
    3797 
    3798 template<typename T>
    3799 void VmaRawList<T>::PopFront()
    3800 {
    3801  VMA_HEAVY_ASSERT(m_Count > 0);
    3802  ItemType* const pFrontItem = m_pFront;
    3803  ItemType* const pNextItem = pFrontItem->pNext;
    3804  if(pNextItem != VMA_NULL)
    3805  {
    3806  pNextItem->pPrev = VMA_NULL;
    3807  }
    3808  m_pFront = pNextItem;
    3809  m_ItemAllocator.Free(pFrontItem);
    3810  --m_Count;
    3811 }
    3812 
    3813 template<typename T>
    3814 void VmaRawList<T>::Remove(ItemType* pItem)
    3815 {
    3816  VMA_HEAVY_ASSERT(pItem != VMA_NULL);
    3817  VMA_HEAVY_ASSERT(m_Count > 0);
    3818 
    3819  if(pItem->pPrev != VMA_NULL)
    3820  {
    3821  pItem->pPrev->pNext = pItem->pNext;
    3822  }
    3823  else
    3824  {
    3825  VMA_HEAVY_ASSERT(m_pFront == pItem);
    3826  m_pFront = pItem->pNext;
    3827  }
    3828 
    3829  if(pItem->pNext != VMA_NULL)
    3830  {
    3831  pItem->pNext->pPrev = pItem->pPrev;
    3832  }
    3833  else
    3834  {
    3835  VMA_HEAVY_ASSERT(m_pBack == pItem);
    3836  m_pBack = pItem->pPrev;
    3837  }
    3838 
    3839  m_ItemAllocator.Free(pItem);
    3840  --m_Count;
    3841 }
    3842 
    3843 template<typename T>
    3844 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem)
    3845 {
    3846  if(pItem != VMA_NULL)
    3847  {
    3848  ItemType* const prevItem = pItem->pPrev;
    3849  ItemType* const newItem = m_ItemAllocator.Alloc();
    3850  newItem->pPrev = prevItem;
    3851  newItem->pNext = pItem;
    3852  pItem->pPrev = newItem;
    3853  if(prevItem != VMA_NULL)
    3854  {
    3855  prevItem->pNext = newItem;
    3856  }
    3857  else
    3858  {
    3859  VMA_HEAVY_ASSERT(m_pFront == pItem);
    3860  m_pFront = newItem;
    3861  }
    3862  ++m_Count;
    3863  return newItem;
    3864  }
    3865  else
    3866  return PushBack();
    3867 }
    3868 
    3869 template<typename T>
    3870 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem)
    3871 {
    3872  if(pItem != VMA_NULL)
    3873  {
    3874  ItemType* const nextItem = pItem->pNext;
    3875  ItemType* const newItem = m_ItemAllocator.Alloc();
    3876  newItem->pNext = nextItem;
    3877  newItem->pPrev = pItem;
    3878  pItem->pNext = newItem;
    3879  if(nextItem != VMA_NULL)
    3880  {
    3881  nextItem->pPrev = newItem;
    3882  }
    3883  else
    3884  {
    3885  VMA_HEAVY_ASSERT(m_pBack == pItem);
    3886  m_pBack = newItem;
    3887  }
    3888  ++m_Count;
    3889  return newItem;
    3890  }
    3891  else
    3892  return PushFront();
    3893 }
    3894 
    3895 template<typename T>
    3896 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem, const T& value)
    3897 {
    3898  ItemType* const newItem = InsertBefore(pItem);
    3899  newItem->Value = value;
    3900  return newItem;
    3901 }
    3902 
    3903 template<typename T>
    3904 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem, const T& value)
    3905 {
    3906  ItemType* const newItem = InsertAfter(pItem);
    3907  newItem->Value = value;
    3908  return newItem;
    3909 }
    3910 
    3911 template<typename T, typename AllocatorT>
    3912 class VmaList
    3913 {
    3914  VMA_CLASS_NO_COPY(VmaList)
    3915 public:
    3916  class iterator
    3917  {
    3918  public:
    3919  iterator() :
    3920  m_pList(VMA_NULL),
    3921  m_pItem(VMA_NULL)
    3922  {
    3923  }
    3924 
    3925  T& operator*() const
    3926  {
    3927  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3928  return m_pItem->Value;
    3929  }
    3930  T* operator->() const
    3931  {
    3932  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3933  return &m_pItem->Value;
    3934  }
    3935 
    3936  iterator& operator++()
    3937  {
    3938  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3939  m_pItem = m_pItem->pNext;
    3940  return *this;
    3941  }
    3942  iterator& operator--()
    3943  {
    3944  if(m_pItem != VMA_NULL)
    3945  {
    3946  m_pItem = m_pItem->pPrev;
    3947  }
    3948  else
    3949  {
    3950  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
    3951  m_pItem = m_pList->Back();
    3952  }
    3953  return *this;
    3954  }
    3955 
    3956  iterator operator++(int)
    3957  {
    3958  iterator result = *this;
    3959  ++*this;
    3960  return result;
    3961  }
    3962  iterator operator--(int)
    3963  {
    3964  iterator result = *this;
    3965  --*this;
    3966  return result;
    3967  }
    3968 
    3969  bool operator==(const iterator& rhs) const
    3970  {
    3971  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    3972  return m_pItem == rhs.m_pItem;
    3973  }
    3974  bool operator!=(const iterator& rhs) const
    3975  {
    3976  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    3977  return m_pItem != rhs.m_pItem;
    3978  }
    3979 
    3980  private:
    3981  VmaRawList<T>* m_pList;
    3982  VmaListItem<T>* m_pItem;
    3983 
    3984  iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) :
    3985  m_pList(pList),
    3986  m_pItem(pItem)
    3987  {
    3988  }
    3989 
    3990  friend class VmaList<T, AllocatorT>;
    3991  };
    3992 
    3993  class const_iterator
    3994  {
    3995  public:
    3996  const_iterator() :
    3997  m_pList(VMA_NULL),
    3998  m_pItem(VMA_NULL)
    3999  {
    4000  }
    4001 
    4002  const_iterator(const iterator& src) :
    4003  m_pList(src.m_pList),
    4004  m_pItem(src.m_pItem)
    4005  {
    4006  }
    4007 
    4008  const T& operator*() const
    4009  {
    4010  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4011  return m_pItem->Value;
    4012  }
    4013  const T* operator->() const
    4014  {
    4015  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4016  return &m_pItem->Value;
    4017  }
    4018 
    4019  const_iterator& operator++()
    4020  {
    4021  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4022  m_pItem = m_pItem->pNext;
    4023  return *this;
    4024  }
    4025  const_iterator& operator--()
    4026  {
    4027  if(m_pItem != VMA_NULL)
    4028  {
    4029  m_pItem = m_pItem->pPrev;
    4030  }
    4031  else
    4032  {
    4033  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
    4034  m_pItem = m_pList->Back();
    4035  }
    4036  return *this;
    4037  }
    4038 
    4039  const_iterator operator++(int)
    4040  {
    4041  const_iterator result = *this;
    4042  ++*this;
    4043  return result;
    4044  }
    4045  const_iterator operator--(int)
    4046  {
    4047  const_iterator result = *this;
    4048  --*this;
    4049  return result;
    4050  }
    4051 
    4052  bool operator==(const const_iterator& rhs) const
    4053  {
    4054  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    4055  return m_pItem == rhs.m_pItem;
    4056  }
    4057  bool operator!=(const const_iterator& rhs) const
    4058  {
    4059  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    4060  return m_pItem != rhs.m_pItem;
    4061  }
    4062 
    4063  private:
    4064  const_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) :
    4065  m_pList(pList),
    4066  m_pItem(pItem)
    4067  {
    4068  }
    4069 
    4070  const VmaRawList<T>* m_pList;
    4071  const VmaListItem<T>* m_pItem;
    4072 
    4073  friend class VmaList<T, AllocatorT>;
    4074  };
    4075 
    4076  VmaList(const AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
    4077 
    4078  bool empty() const { return m_RawList.IsEmpty(); }
    4079  size_t size() const { return m_RawList.GetCount(); }
    4080 
    4081  iterator begin() { return iterator(&m_RawList, m_RawList.Front()); }
    4082  iterator end() { return iterator(&m_RawList, VMA_NULL); }
    4083 
    4084  const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); }
    4085  const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); }
    4086 
    4087  void clear() { m_RawList.Clear(); }
    4088  void push_back(const T& value) { m_RawList.PushBack(value); }
    4089  void erase(iterator it) { m_RawList.Remove(it.m_pItem); }
    4090  iterator insert(iterator it, const T& value) { return iterator(&m_RawList, m_RawList.InsertBefore(it.m_pItem, value)); }
    4091 
    4092 private:
    4093  VmaRawList<T> m_RawList;
    4094 };
    4095 
    4096 #endif // #if VMA_USE_STL_LIST
    4097 
    4099 // class VmaMap
    4100 
    4101 // Unused in this version.
    4102 #if 0
    4103 
    4104 #if VMA_USE_STL_UNORDERED_MAP
    4105 
    4106 #define VmaPair std::pair
    4107 
    4108 #define VMA_MAP_TYPE(KeyT, ValueT) \
    4109  std::unordered_map< KeyT, ValueT, std::hash<KeyT>, std::equal_to<KeyT>, VmaStlAllocator< std::pair<KeyT, ValueT> > >
    4110 
    4111 #else // #if VMA_USE_STL_UNORDERED_MAP
    4112 
    4113 template<typename T1, typename T2>
    4114 struct VmaPair
    4115 {
    4116  T1 first;
    4117  T2 second;
    4118 
    4119  VmaPair() : first(), second() { }
    4120  VmaPair(const T1& firstSrc, const T2& secondSrc) : first(firstSrc), second(secondSrc) { }
    4121 };
    4122 
    4123 /* Class compatible with subset of interface of std::unordered_map.
    4124 KeyT, ValueT must be POD because they will be stored in VmaVector.
    4125 */
    4126 template<typename KeyT, typename ValueT>
    4127 class VmaMap
    4128 {
    4129 public:
    4130  typedef VmaPair<KeyT, ValueT> PairType;
    4131  typedef PairType* iterator;
    4132 
    4133  VmaMap(const VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
    4134 
    4135  iterator begin() { return m_Vector.begin(); }
    4136  iterator end() { return m_Vector.end(); }
    4137 
    4138  void insert(const PairType& pair);
    4139  iterator find(const KeyT& key);
    4140  void erase(iterator it);
    4141 
    4142 private:
    4143  VmaVector< PairType, VmaStlAllocator<PairType> > m_Vector;
    4144 };
    4145 
    4146 #define VMA_MAP_TYPE(KeyT, ValueT) VmaMap<KeyT, ValueT>
    4147 
    4148 template<typename FirstT, typename SecondT>
    4149 struct VmaPairFirstLess
    4150 {
    4151  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const VmaPair<FirstT, SecondT>& rhs) const
    4152  {
    4153  return lhs.first < rhs.first;
    4154  }
    4155  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const FirstT& rhsFirst) const
    4156  {
    4157  return lhs.first < rhsFirst;
    4158  }
    4159 };
    4160 
    4161 template<typename KeyT, typename ValueT>
    4162 void VmaMap<KeyT, ValueT>::insert(const PairType& pair)
    4163 {
    4164  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
    4165  m_Vector.data(),
    4166  m_Vector.data() + m_Vector.size(),
    4167  pair,
    4168  VmaPairFirstLess<KeyT, ValueT>()) - m_Vector.data();
    4169  VmaVectorInsert(m_Vector, indexToInsert, pair);
    4170 }
    4171 
    4172 template<typename KeyT, typename ValueT>
    4173 VmaPair<KeyT, ValueT>* VmaMap<KeyT, ValueT>::find(const KeyT& key)
    4174 {
    4175  PairType* it = VmaBinaryFindFirstNotLess(
    4176  m_Vector.data(),
    4177  m_Vector.data() + m_Vector.size(),
    4178  key,
    4179  VmaPairFirstLess<KeyT, ValueT>());
    4180  if((it != m_Vector.end()) && (it->first == key))
    4181  {
    4182  return it;
    4183  }
    4184  else
    4185  {
    4186  return m_Vector.end();
    4187  }
    4188 }
    4189 
    4190 template<typename KeyT, typename ValueT>
    4191 void VmaMap<KeyT, ValueT>::erase(iterator it)
    4192 {
    4193  VmaVectorRemove(m_Vector, it - m_Vector.begin());
    4194 }
    4195 
    4196 #endif // #if VMA_USE_STL_UNORDERED_MAP
    4197 
    4198 #endif // #if 0
    4199 
    4201 
    4202 class VmaDeviceMemoryBlock;
    4203 
    4204 enum VMA_CACHE_OPERATION { VMA_CACHE_FLUSH, VMA_CACHE_INVALIDATE };
    4205 
    4206 struct VmaAllocation_T
    4207 {
    4208  VMA_CLASS_NO_COPY(VmaAllocation_T)
    4209 private:
    4210  static const uint8_t MAP_COUNT_FLAG_PERSISTENT_MAP = 0x80;
    4211 
    4212  enum FLAGS
    4213  {
    4214  FLAG_USER_DATA_STRING = 0x01,
    4215  };
    4216 
    4217 public:
    4218  enum ALLOCATION_TYPE
    4219  {
    4220  ALLOCATION_TYPE_NONE,
    4221  ALLOCATION_TYPE_BLOCK,
    4222  ALLOCATION_TYPE_DEDICATED,
    4223  };
    4224 
    4225  VmaAllocation_T(uint32_t currentFrameIndex, bool userDataString) :
    4226  m_Alignment(1),
    4227  m_Size(0),
    4228  m_pUserData(VMA_NULL),
    4229  m_LastUseFrameIndex(currentFrameIndex),
    4230  m_Type((uint8_t)ALLOCATION_TYPE_NONE),
    4231  m_SuballocationType((uint8_t)VMA_SUBALLOCATION_TYPE_UNKNOWN),
    4232  m_MapCount(0),
    4233  m_Flags(userDataString ? (uint8_t)FLAG_USER_DATA_STRING : 0)
    4234  {
    4235 #if VMA_STATS_STRING_ENABLED
    4236  m_CreationFrameIndex = currentFrameIndex;
    4237  m_BufferImageUsage = 0;
    4238 #endif
    4239  }
    4240 
    4241  ~VmaAllocation_T()
    4242  {
    4243  VMA_ASSERT((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) == 0 && "Allocation was not unmapped before destruction.");
    4244 
    4245  // Check if owned string was freed.
    4246  VMA_ASSERT(m_pUserData == VMA_NULL);
    4247  }
    4248 
    4249  void InitBlockAllocation(
    4250  VmaPool hPool,
    4251  VmaDeviceMemoryBlock* block,
    4252  VkDeviceSize offset,
    4253  VkDeviceSize alignment,
    4254  VkDeviceSize size,
    4255  VmaSuballocationType suballocationType,
    4256  bool mapped,
    4257  bool canBecomeLost)
    4258  {
    4259  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4260  VMA_ASSERT(block != VMA_NULL);
    4261  m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK;
    4262  m_Alignment = alignment;
    4263  m_Size = size;
    4264  m_MapCount = mapped ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0;
    4265  m_SuballocationType = (uint8_t)suballocationType;
    4266  m_BlockAllocation.m_hPool = hPool;
    4267  m_BlockAllocation.m_Block = block;
    4268  m_BlockAllocation.m_Offset = offset;
    4269  m_BlockAllocation.m_CanBecomeLost = canBecomeLost;
    4270  }
    4271 
    4272  void InitLost()
    4273  {
    4274  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4275  VMA_ASSERT(m_LastUseFrameIndex.load() == VMA_FRAME_INDEX_LOST);
    4276  m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK;
    4277  m_BlockAllocation.m_hPool = VK_NULL_HANDLE;
    4278  m_BlockAllocation.m_Block = VMA_NULL;
    4279  m_BlockAllocation.m_Offset = 0;
    4280  m_BlockAllocation.m_CanBecomeLost = true;
    4281  }
    4282 
    4283  void ChangeBlockAllocation(
    4284  VmaAllocator hAllocator,
    4285  VmaDeviceMemoryBlock* block,
    4286  VkDeviceSize offset);
    4287 
    4288  // pMappedData not null means allocation is created with MAPPED flag.
    4289  void InitDedicatedAllocation(
    4290  uint32_t memoryTypeIndex,
    4291  VkDeviceMemory hMemory,
    4292  VmaSuballocationType suballocationType,
    4293  void* pMappedData,
    4294  VkDeviceSize size)
    4295  {
    4296  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4297  VMA_ASSERT(hMemory != VK_NULL_HANDLE);
    4298  m_Type = (uint8_t)ALLOCATION_TYPE_DEDICATED;
    4299  m_Alignment = 0;
    4300  m_Size = size;
    4301  m_SuballocationType = (uint8_t)suballocationType;
    4302  m_MapCount = (pMappedData != VMA_NULL) ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0;
    4303  m_DedicatedAllocation.m_MemoryTypeIndex = memoryTypeIndex;
    4304  m_DedicatedAllocation.m_hMemory = hMemory;
    4305  m_DedicatedAllocation.m_pMappedData = pMappedData;
    4306  }
    4307 
    4308  ALLOCATION_TYPE GetType() const { return (ALLOCATION_TYPE)m_Type; }
    4309  VkDeviceSize GetAlignment() const { return m_Alignment; }
    4310  VkDeviceSize GetSize() const { return m_Size; }
    4311  bool IsUserDataString() const { return (m_Flags & FLAG_USER_DATA_STRING) != 0; }
    4312  void* GetUserData() const { return m_pUserData; }
    4313  void SetUserData(VmaAllocator hAllocator, void* pUserData);
    4314  VmaSuballocationType GetSuballocationType() const { return (VmaSuballocationType)m_SuballocationType; }
    4315 
    4316  VmaDeviceMemoryBlock* GetBlock() const
    4317  {
    4318  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    4319  return m_BlockAllocation.m_Block;
    4320  }
    4321  VkDeviceSize GetOffset() const;
    4322  VkDeviceMemory GetMemory() const;
    4323  uint32_t GetMemoryTypeIndex() const;
    4324  bool IsPersistentMap() const { return (m_MapCount & MAP_COUNT_FLAG_PERSISTENT_MAP) != 0; }
    4325  void* GetMappedData() const;
    4326  bool CanBecomeLost() const;
    4327  VmaPool GetPool() const;
    4328 
    4329  uint32_t GetLastUseFrameIndex() const
    4330  {
    4331  return m_LastUseFrameIndex.load();
    4332  }
    4333  bool CompareExchangeLastUseFrameIndex(uint32_t& expected, uint32_t desired)
    4334  {
    4335  return m_LastUseFrameIndex.compare_exchange_weak(expected, desired);
    4336  }
    4337  /*
    4338  - If hAllocation.LastUseFrameIndex + frameInUseCount < allocator.CurrentFrameIndex,
    4339  makes it lost by setting LastUseFrameIndex = VMA_FRAME_INDEX_LOST and returns true.
    4340  - Else, returns false.
    4341 
    4342  If hAllocation is already lost, assert - you should not call it then.
    4343  If hAllocation was not created with CAN_BECOME_LOST_BIT, assert.
    4344  */
    4345  bool MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4346 
    4347  void DedicatedAllocCalcStatsInfo(VmaStatInfo& outInfo)
    4348  {
    4349  VMA_ASSERT(m_Type == ALLOCATION_TYPE_DEDICATED);
    4350  outInfo.blockCount = 1;
    4351  outInfo.allocationCount = 1;
    4352  outInfo.unusedRangeCount = 0;
    4353  outInfo.usedBytes = m_Size;
    4354  outInfo.unusedBytes = 0;
    4355  outInfo.allocationSizeMin = outInfo.allocationSizeMax = m_Size;
    4356  outInfo.unusedRangeSizeMin = UINT64_MAX;
    4357  outInfo.unusedRangeSizeMax = 0;
    4358  }
    4359 
    4360  void BlockAllocMap();
    4361  void BlockAllocUnmap();
    4362  VkResult DedicatedAllocMap(VmaAllocator hAllocator, void** ppData);
    4363  void DedicatedAllocUnmap(VmaAllocator hAllocator);
    4364 
    4365 #if VMA_STATS_STRING_ENABLED
    4366  uint32_t GetCreationFrameIndex() const { return m_CreationFrameIndex; }
    4367  uint32_t GetBufferImageUsage() const { return m_BufferImageUsage; }
    4368 
    4369  void InitBufferImageUsage(uint32_t bufferImageUsage)
    4370  {
    4371  VMA_ASSERT(m_BufferImageUsage == 0);
    4372  m_BufferImageUsage = bufferImageUsage;
    4373  }
    4374 
    4375  void PrintParameters(class VmaJsonWriter& json) const;
    4376 #endif
    4377 
    4378 private:
    4379  VkDeviceSize m_Alignment;
    4380  VkDeviceSize m_Size;
    4381  void* m_pUserData;
    4382  VMA_ATOMIC_UINT32 m_LastUseFrameIndex;
    4383  uint8_t m_Type; // ALLOCATION_TYPE
    4384  uint8_t m_SuballocationType; // VmaSuballocationType
    4385  // Bit 0x80 is set when allocation was created with VMA_ALLOCATION_CREATE_MAPPED_BIT.
    4386  // Bits with mask 0x7F are reference counter for vmaMapMemory()/vmaUnmapMemory().
    4387  uint8_t m_MapCount;
    4388  uint8_t m_Flags; // enum FLAGS
    4389 
    4390  // Allocation out of VmaDeviceMemoryBlock.
    4391  struct BlockAllocation
    4392  {
    4393  VmaPool m_hPool; // Null if belongs to general memory.
    4394  VmaDeviceMemoryBlock* m_Block;
    4395  VkDeviceSize m_Offset;
    4396  bool m_CanBecomeLost;
    4397  };
    4398 
    4399  // Allocation for an object that has its own private VkDeviceMemory.
    4400  struct DedicatedAllocation
    4401  {
    4402  uint32_t m_MemoryTypeIndex;
    4403  VkDeviceMemory m_hMemory;
    4404  void* m_pMappedData; // Not null means memory is mapped.
    4405  };
    4406 
    4407  union
    4408  {
    4409  // Allocation out of VmaDeviceMemoryBlock.
    4410  BlockAllocation m_BlockAllocation;
    4411  // Allocation for an object that has its own private VkDeviceMemory.
    4412  DedicatedAllocation m_DedicatedAllocation;
    4413  };
    4414 
    4415 #if VMA_STATS_STRING_ENABLED
    4416  uint32_t m_CreationFrameIndex;
    4417  uint32_t m_BufferImageUsage; // 0 if unknown.
    4418 #endif
    4419 
    4420  void FreeUserDataString(VmaAllocator hAllocator);
    4421 };
    4422 
    4423 /*
    4424 Represents a region of VmaDeviceMemoryBlock that is either assigned and returned as
    4425 allocated memory block or free.
    4426 */
    4427 struct VmaSuballocation
    4428 {
    4429  VkDeviceSize offset;
    4430  VkDeviceSize size;
    4431  VmaAllocation hAllocation;
    4432  VmaSuballocationType type;
    4433 };
    4434 
    4435 // Comparator for offsets.
    4436 struct VmaSuballocationOffsetLess
    4437 {
    4438  bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
    4439  {
    4440  return lhs.offset < rhs.offset;
    4441  }
    4442 };
    4443 struct VmaSuballocationOffsetGreater
    4444 {
    4445  bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
    4446  {
    4447  return lhs.offset > rhs.offset;
    4448  }
    4449 };
    4450 
    4451 typedef VmaList< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > VmaSuballocationList;
    4452 
    4453 // Cost of one additional allocation lost, as equivalent in bytes.
    4454 static const VkDeviceSize VMA_LOST_ALLOCATION_COST = 1048576;
    4455 
    4456 /*
    4457 Parameters of planned allocation inside a VmaDeviceMemoryBlock.
    4458 
    4459 If canMakeOtherLost was false:
    4460 - item points to a FREE suballocation.
    4461 - itemsToMakeLostCount is 0.
    4462 
    4463 If canMakeOtherLost was true:
    4464 - item points to first of sequence of suballocations, which are either FREE,
    4465  or point to VmaAllocations that can become lost.
    4466 - itemsToMakeLostCount is the number of VmaAllocations that need to be made lost for
    4467  the requested allocation to succeed.
    4468 */
    4469 struct VmaAllocationRequest
    4470 {
    4471  VkDeviceSize offset;
    4472  VkDeviceSize sumFreeSize; // Sum size of free items that overlap with proposed allocation.
    4473  VkDeviceSize sumItemSize; // Sum size of items to make lost that overlap with proposed allocation.
    4474  VmaSuballocationList::iterator item;
    4475  size_t itemsToMakeLostCount;
    4476 
    4477  VkDeviceSize CalcCost() const
    4478  {
    4479  return sumItemSize + itemsToMakeLostCount * VMA_LOST_ALLOCATION_COST;
    4480  }
    4481 };
    4482 
    4483 /*
    4484 Data structure used for bookkeeping of allocations and unused ranges of memory
    4485 in a single VkDeviceMemory block.
    4486 */
    4487 class VmaBlockMetadata
    4488 {
    4489 public:
    4490  VmaBlockMetadata() : m_Size(0) { }
    4491  virtual ~VmaBlockMetadata() { }
    4492  virtual void Init(VkDeviceSize size) { m_Size = size; }
    4493 
    4494  // Validates all data structures inside this object. If not valid, returns false.
    4495  virtual bool Validate() const = 0;
    4496  VkDeviceSize GetSize() const { return m_Size; }
    4497  virtual size_t GetAllocationCount() const = 0;
    4498  virtual VkDeviceSize GetSumFreeSize() const = 0;
    4499  virtual VkDeviceSize GetUnusedRangeSizeMax() const = 0;
    4500  // Returns true if this block is empty - contains only single free suballocation.
    4501  virtual bool IsEmpty() const = 0;
    4502 
    4503  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const = 0;
    4504  virtual void AddPoolStats(VmaPoolStats& inoutStats) const = 0;
    4505 
    4506 #if VMA_STATS_STRING_ENABLED
    4507  virtual void PrintDetailedMap(class VmaJsonWriter& json) const = 0;
    4508 #endif
    4509 
    4510  // Tries to find a place for suballocation with given parameters inside this block.
    4511  // If succeeded, fills pAllocationRequest and returns true.
    4512  // If failed, returns false.
    4513  virtual bool CreateAllocationRequest(
    4514  uint32_t currentFrameIndex,
    4515  uint32_t frameInUseCount,
    4516  VkDeviceSize bufferImageGranularity,
    4517  VkDeviceSize allocSize,
    4518  VkDeviceSize allocAlignment,
    4519  bool upperAddress,
    4520  VmaSuballocationType allocType,
    4521  bool canMakeOtherLost,
    4522  VmaAllocationRequest* pAllocationRequest) = 0;
    4523 
    4524  virtual bool MakeRequestedAllocationsLost(
    4525  uint32_t currentFrameIndex,
    4526  uint32_t frameInUseCount,
    4527  VmaAllocationRequest* pAllocationRequest) = 0;
    4528 
    4529  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) = 0;
    4530 
    4531  virtual VkResult CheckCorruption(const void* pBlockData) = 0;
    4532 
    4533  // Makes actual allocation based on request. Request must already be checked and valid.
    4534  virtual void Alloc(
    4535  const VmaAllocationRequest& request,
    4536  VmaSuballocationType type,
    4537  VkDeviceSize allocSize,
    4538  bool upperAddress,
    4539  VmaAllocation hAllocation) = 0;
    4540 
    4541  // Frees suballocation assigned to given memory region.
    4542  virtual void Free(const VmaAllocation allocation) = 0;
    4543  virtual void FreeAtOffset(VkDeviceSize offset) = 0;
    4544 
    4545 protected:
    4546 #if VMA_STATS_STRING_ENABLED
    4547  void PrintDetailedMap_Begin(class VmaJsonWriter& json,
    4548  VkDeviceSize unusedBytes,
    4549  size_t allocationCount,
    4550  size_t unusedRangeCount) const;
    4551  void PrintDetailedMap_Allocation(class VmaJsonWriter& json,
    4552  VkDeviceSize offset,
    4553  VmaAllocation hAllocation) const;
    4554  void PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
    4555  VkDeviceSize offset,
    4556  VkDeviceSize size) const;
    4557  void PrintDetailedMap_End(class VmaJsonWriter& json) const;
    4558 #endif
    4559 
    4560 private:
    4561  VkDeviceSize m_Size;
    4562 };
    4563 
    4564 class VmaBlockMetadata_Generic : public VmaBlockMetadata
    4565 {
    4566  VMA_CLASS_NO_COPY(VmaBlockMetadata_Generic)
    4567 public:
    4568  VmaBlockMetadata_Generic(VmaAllocator hAllocator);
    4569  virtual ~VmaBlockMetadata_Generic();
    4570  virtual void Init(VkDeviceSize size);
    4571 
    4572  virtual bool Validate() const;
    4573  virtual size_t GetAllocationCount() const { return m_Suballocations.size() - m_FreeCount; }
    4574  virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; }
    4575  virtual VkDeviceSize GetUnusedRangeSizeMax() const;
    4576  virtual bool IsEmpty() const;
    4577 
    4578  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const;
    4579  virtual void AddPoolStats(VmaPoolStats& inoutStats) const;
    4580 
    4581 #if VMA_STATS_STRING_ENABLED
    4582  virtual void PrintDetailedMap(class VmaJsonWriter& json) const;
    4583 #endif
    4584 
    4585  virtual bool CreateAllocationRequest(
    4586  uint32_t currentFrameIndex,
    4587  uint32_t frameInUseCount,
    4588  VkDeviceSize bufferImageGranularity,
    4589  VkDeviceSize allocSize,
    4590  VkDeviceSize allocAlignment,
    4591  bool upperAddress,
    4592  VmaSuballocationType allocType,
    4593  bool canMakeOtherLost,
    4594  VmaAllocationRequest* pAllocationRequest);
    4595 
    4596  virtual bool MakeRequestedAllocationsLost(
    4597  uint32_t currentFrameIndex,
    4598  uint32_t frameInUseCount,
    4599  VmaAllocationRequest* pAllocationRequest);
    4600 
    4601  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4602 
    4603  virtual VkResult CheckCorruption(const void* pBlockData);
    4604 
    4605  virtual void Alloc(
    4606  const VmaAllocationRequest& request,
    4607  VmaSuballocationType type,
    4608  VkDeviceSize allocSize,
    4609  bool upperAddress,
    4610  VmaAllocation hAllocation);
    4611 
    4612  virtual void Free(const VmaAllocation allocation);
    4613  virtual void FreeAtOffset(VkDeviceSize offset);
    4614 
    4615 private:
    4616  uint32_t m_FreeCount;
    4617  VkDeviceSize m_SumFreeSize;
    4618  VmaSuballocationList m_Suballocations;
    4619  // Suballocations that are free and have size greater than certain threshold.
    4620  // Sorted by size, ascending.
    4621  VmaVector< VmaSuballocationList::iterator, VmaStlAllocator< VmaSuballocationList::iterator > > m_FreeSuballocationsBySize;
    4622 
    4623  bool ValidateFreeSuballocationList() const;
    4624 
    4625  // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
    4626  // If yes, fills pOffset and returns true. If no, returns false.
    4627  bool CheckAllocation(
    4628  uint32_t currentFrameIndex,
    4629  uint32_t frameInUseCount,
    4630  VkDeviceSize bufferImageGranularity,
    4631  VkDeviceSize allocSize,
    4632  VkDeviceSize allocAlignment,
    4633  VmaSuballocationType allocType,
    4634  VmaSuballocationList::const_iterator suballocItem,
    4635  bool canMakeOtherLost,
    4636  VkDeviceSize* pOffset,
    4637  size_t* itemsToMakeLostCount,
    4638  VkDeviceSize* pSumFreeSize,
    4639  VkDeviceSize* pSumItemSize) const;
    4640  // Given free suballocation, it merges it with following one, which must also be free.
    4641  void MergeFreeWithNext(VmaSuballocationList::iterator item);
    4642  // Releases given suballocation, making it free.
    4643  // Merges it with adjacent free suballocations if applicable.
    4644  // Returns iterator to new free suballocation at this place.
    4645  VmaSuballocationList::iterator FreeSuballocation(VmaSuballocationList::iterator suballocItem);
    4646  // Given free suballocation, it inserts it into sorted list of
    4647  // m_FreeSuballocationsBySize if it's suitable.
    4648  void RegisterFreeSuballocation(VmaSuballocationList::iterator item);
    4649  // Given free suballocation, it removes it from sorted list of
    4650  // m_FreeSuballocationsBySize if it's suitable.
    4651  void UnregisterFreeSuballocation(VmaSuballocationList::iterator item);
    4652 };
    4653 
    4654 /*
    4655 Allocations and their references in internal data structure look like this:
    4656 
    4657 if(m_2ndVectorMode == SECOND_VECTOR_EMPTY):
    4658 
    4659  0 +-------+
    4660  | |
    4661  | |
    4662  | |
    4663  +-------+
    4664  | Alloc | 1st[m_1stNullItemsBeginCount]
    4665  +-------+
    4666  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4667  +-------+
    4668  | ... |
    4669  +-------+
    4670  | Alloc | 1st[1st.size() - 1]
    4671  +-------+
    4672  | |
    4673  | |
    4674  | |
    4675 GetSize() +-------+
    4676 
    4677 if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER):
    4678 
    4679  0 +-------+
    4680  | Alloc | 2nd[0]
    4681  +-------+
    4682  | Alloc | 2nd[1]
    4683  +-------+
    4684  | ... |
    4685  +-------+
    4686  | Alloc | 2nd[2nd.size() - 1]
    4687  +-------+
    4688  | |
    4689  | |
    4690  | |
    4691  +-------+
    4692  | Alloc | 1st[m_1stNullItemsBeginCount]
    4693  +-------+
    4694  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4695  +-------+
    4696  | ... |
    4697  +-------+
    4698  | Alloc | 1st[1st.size() - 1]
    4699  +-------+
    4700  | |
    4701 GetSize() +-------+
    4702 
    4703 if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK):
    4704 
    4705  0 +-------+
    4706  | |
    4707  | |
    4708  | |
    4709  +-------+
    4710  | Alloc | 1st[m_1stNullItemsBeginCount]
    4711  +-------+
    4712  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4713  +-------+
    4714  | ... |
    4715  +-------+
    4716  | Alloc | 1st[1st.size() - 1]
    4717  +-------+
    4718  | |
    4719  | |
    4720  | |
    4721  +-------+
    4722  | Alloc | 2nd[2nd.size() - 1]
    4723  +-------+
    4724  | ... |
    4725  +-------+
    4726  | Alloc | 2nd[1]
    4727  +-------+
    4728  | Alloc | 2nd[0]
    4729 GetSize() +-------+
    4730 
    4731 */
    4732 class VmaBlockMetadata_Linear : public VmaBlockMetadata
    4733 {
    4734  VMA_CLASS_NO_COPY(VmaBlockMetadata_Linear)
    4735 public:
    4736  VmaBlockMetadata_Linear(VmaAllocator hAllocator);
    4737  virtual ~VmaBlockMetadata_Linear();
    4738  virtual void Init(VkDeviceSize size);
    4739 
    4740  virtual bool Validate() const;
    4741  virtual size_t GetAllocationCount() const;
    4742  virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; }
    4743  virtual VkDeviceSize GetUnusedRangeSizeMax() const;
    4744  virtual bool IsEmpty() const { return GetAllocationCount() == 0; }
    4745 
    4746  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const;
    4747  virtual void AddPoolStats(VmaPoolStats& inoutStats) const;
    4748 
    4749 #if VMA_STATS_STRING_ENABLED
    4750  virtual void PrintDetailedMap(class VmaJsonWriter& json) const;
    4751 #endif
    4752 
    4753  virtual bool CreateAllocationRequest(
    4754  uint32_t currentFrameIndex,
    4755  uint32_t frameInUseCount,
    4756  VkDeviceSize bufferImageGranularity,
    4757  VkDeviceSize allocSize,
    4758  VkDeviceSize allocAlignment,
    4759  bool upperAddress,
    4760  VmaSuballocationType allocType,
    4761  bool canMakeOtherLost,
    4762  VmaAllocationRequest* pAllocationRequest);
    4763 
    4764  virtual bool MakeRequestedAllocationsLost(
    4765  uint32_t currentFrameIndex,
    4766  uint32_t frameInUseCount,
    4767  VmaAllocationRequest* pAllocationRequest);
    4768 
    4769  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4770 
    4771  virtual VkResult CheckCorruption(const void* pBlockData);
    4772 
    4773  virtual void Alloc(
    4774  const VmaAllocationRequest& request,
    4775  VmaSuballocationType type,
    4776  VkDeviceSize allocSize,
    4777  bool upperAddress,
    4778  VmaAllocation hAllocation);
    4779 
    4780  virtual void Free(const VmaAllocation allocation);
    4781  virtual void FreeAtOffset(VkDeviceSize offset);
    4782 
    4783 private:
    4784  /*
    4785  There are two suballocation vectors, used in ping-pong way.
    4786  The one with index m_1stVectorIndex is called 1st.
    4787  The one with index (m_1stVectorIndex ^ 1) is called 2nd.
    4788  2nd can be non-empty only when 1st is not empty.
    4789  When 2nd is not empty, m_2ndVectorMode indicates its mode of operation.
    4790  */
    4791  typedef VmaVector< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > SuballocationVectorType;
    4792 
    4793  enum SECOND_VECTOR_MODE
    4794  {
    4795  SECOND_VECTOR_EMPTY,
    4796  /*
    4797  Suballocations in 2nd vector are created later than the ones in 1st, but they
    4798  all have smaller offset.
    4799  */
    4800  SECOND_VECTOR_RING_BUFFER,
    4801  /*
    4802  Suballocations in 2nd vector are upper side of double stack.
    4803  They all have offsets higher than those in 1st vector.
    4804  Top of this stack means smaller offsets, but higher indices in this vector.
    4805  */
    4806  SECOND_VECTOR_DOUBLE_STACK,
    4807  };
    4808 
    4809  VkDeviceSize m_SumFreeSize;
    4810  SuballocationVectorType m_Suballocations0, m_Suballocations1;
    4811  uint32_t m_1stVectorIndex;
    4812  SECOND_VECTOR_MODE m_2ndVectorMode;
    4813 
    4814  SuballocationVectorType& AccessSuballocations1st() { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
    4815  SuballocationVectorType& AccessSuballocations2nd() { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
    4816  const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
    4817  const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
    4818 
    4819  // Number of items in 1st vector with hAllocation = null at the beginning.
    4820  size_t m_1stNullItemsBeginCount;
    4821  // Number of other items in 1st vector with hAllocation = null somewhere in the middle.
    4822  size_t m_1stNullItemsMiddleCount;
    4823  // Number of items in 2nd vector with hAllocation = null.
    4824  size_t m_2ndNullItemsCount;
    4825 
    4826  bool ShouldCompact1st() const;
    4827  void CleanupAfterFree();
    4828 };
    4829 
    4830 /*
    4831 Represents a single block of device memory (`VkDeviceMemory`) with all the
    4832 data about its regions (aka suballocations, #VmaAllocation), assigned and free.
    4833 
    4834 Thread-safety: This class must be externally synchronized.
    4835 */
    4836 class VmaDeviceMemoryBlock
    4837 {
    4838  VMA_CLASS_NO_COPY(VmaDeviceMemoryBlock)
    4839 public:
    4840  VmaBlockMetadata* m_pMetadata;
    4841 
    4842  VmaDeviceMemoryBlock(VmaAllocator hAllocator);
    4843 
    4844  ~VmaDeviceMemoryBlock()
    4845  {
    4846  VMA_ASSERT(m_MapCount == 0 && "VkDeviceMemory block is being destroyed while it is still mapped.");
    4847  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
    4848  }
    4849 
    4850  // Always call after construction.
    4851  void Init(
    4852  VmaAllocator hAllocator,
    4853  uint32_t newMemoryTypeIndex,
    4854  VkDeviceMemory newMemory,
    4855  VkDeviceSize newSize,
    4856  uint32_t id,
    4857  bool linearAlgorithm);
    4858  // Always call before destruction.
    4859  void Destroy(VmaAllocator allocator);
    4860 
    4861  VkDeviceMemory GetDeviceMemory() const { return m_hMemory; }
    4862  uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
    4863  uint32_t GetId() const { return m_Id; }
    4864  void* GetMappedData() const { return m_pMappedData; }
    4865 
    4866  // Validates all data structures inside this object. If not valid, returns false.
    4867  bool Validate() const;
    4868 
    4869  VkResult CheckCorruption(VmaAllocator hAllocator);
    4870 
    4871  // ppData can be null.
    4872  VkResult Map(VmaAllocator hAllocator, uint32_t count, void** ppData);
    4873  void Unmap(VmaAllocator hAllocator, uint32_t count);
    4874 
    4875  VkResult WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
    4876  VkResult ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
    4877 
    4878  VkResult BindBufferMemory(
    4879  const VmaAllocator hAllocator,
    4880  const VmaAllocation hAllocation,
    4881  VkBuffer hBuffer);
    4882  VkResult BindImageMemory(
    4883  const VmaAllocator hAllocator,
    4884  const VmaAllocation hAllocation,
    4885  VkImage hImage);
    4886 
    4887 private:
    4888  uint32_t m_MemoryTypeIndex;
    4889  uint32_t m_Id;
    4890  VkDeviceMemory m_hMemory;
    4891 
    4892  // Protects access to m_hMemory so it's not used by multiple threads simultaneously, e.g. vkMapMemory, vkBindBufferMemory.
    4893  // Also protects m_MapCount, m_pMappedData.
    4894  VMA_MUTEX m_Mutex;
    4895  uint32_t m_MapCount;
    4896  void* m_pMappedData;
    4897 };
    4898 
    4899 struct VmaPointerLess
    4900 {
    4901  bool operator()(const void* lhs, const void* rhs) const
    4902  {
    4903  return lhs < rhs;
    4904  }
    4905 };
    4906 
    4907 class VmaDefragmentator;
    4908 
    4909 /*
    4910 Sequence of VmaDeviceMemoryBlock. Represents memory blocks allocated for a specific
    4911 Vulkan memory type.
    4912 
    4913 Synchronized internally with a mutex.
    4914 */
    4915 struct VmaBlockVector
    4916 {
    4917  VMA_CLASS_NO_COPY(VmaBlockVector)
    4918 public:
    4919  VmaBlockVector(
    4920  VmaAllocator hAllocator,
    4921  uint32_t memoryTypeIndex,
    4922  VkDeviceSize preferredBlockSize,
    4923  size_t minBlockCount,
    4924  size_t maxBlockCount,
    4925  VkDeviceSize bufferImageGranularity,
    4926  uint32_t frameInUseCount,
    4927  bool isCustomPool,
    4928  bool linearAlgorithm);
    4929  ~VmaBlockVector();
    4930 
    4931  VkResult CreateMinBlocks();
    4932 
    4933  uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
    4934  VkDeviceSize GetPreferredBlockSize() const { return m_PreferredBlockSize; }
    4935  VkDeviceSize GetBufferImageGranularity() const { return m_BufferImageGranularity; }
    4936  uint32_t GetFrameInUseCount() const { return m_FrameInUseCount; }
    4937  bool UsesLinearAlgorithm() const { return m_LinearAlgorithm; }
    4938 
    4939  void GetPoolStats(VmaPoolStats* pStats);
    4940 
    4941  bool IsEmpty() const { return m_Blocks.empty(); }
    4942  bool IsCorruptionDetectionEnabled() const;
    4943 
    4944  VkResult Allocate(
    4945  VmaPool hCurrentPool,
    4946  uint32_t currentFrameIndex,
    4947  VkDeviceSize size,
    4948  VkDeviceSize alignment,
    4949  const VmaAllocationCreateInfo& createInfo,
    4950  VmaSuballocationType suballocType,
    4951  VmaAllocation* pAllocation);
    4952 
    4953  void Free(
    4954  VmaAllocation hAllocation);
    4955 
    4956  // Adds statistics of this BlockVector to pStats.
    4957  void AddStats(VmaStats* pStats);
    4958 
    4959 #if VMA_STATS_STRING_ENABLED
    4960  void PrintDetailedMap(class VmaJsonWriter& json);
    4961 #endif
    4962 
    4963  void MakePoolAllocationsLost(
    4964  uint32_t currentFrameIndex,
    4965  size_t* pLostAllocationCount);
    4966  VkResult CheckCorruption();
    4967 
    4968  VmaDefragmentator* EnsureDefragmentator(
    4969  VmaAllocator hAllocator,
    4970  uint32_t currentFrameIndex);
    4971 
    4972  VkResult Defragment(
    4973  VmaDefragmentationStats* pDefragmentationStats,
    4974  VkDeviceSize& maxBytesToMove,
    4975  uint32_t& maxAllocationsToMove);
    4976 
    4977  void DestroyDefragmentator();
    4978 
    4979 private:
    4980  friend class VmaDefragmentator;
    4981 
    4982  const VmaAllocator m_hAllocator;
    4983  const uint32_t m_MemoryTypeIndex;
    4984  const VkDeviceSize m_PreferredBlockSize;
    4985  const size_t m_MinBlockCount;
    4986  const size_t m_MaxBlockCount;
    4987  const VkDeviceSize m_BufferImageGranularity;
    4988  const uint32_t m_FrameInUseCount;
    4989  const bool m_IsCustomPool;
    4990  const bool m_LinearAlgorithm;
    4991  bool m_HasEmptyBlock;
    4992  VMA_MUTEX m_Mutex;
    4993  // Incrementally sorted by sumFreeSize, ascending.
    4994  VmaVector< VmaDeviceMemoryBlock*, VmaStlAllocator<VmaDeviceMemoryBlock*> > m_Blocks;
    4995  /* There can be at most one allocation that is completely empty - a
    4996  hysteresis to avoid pessimistic case of alternating creation and destruction
    4997  of a VkDeviceMemory. */
    4998  VmaDefragmentator* m_pDefragmentator;
    4999  uint32_t m_NextBlockId;
    5000 
    5001  VkDeviceSize CalcMaxBlockSize() const;
    5002 
    5003  // Finds and removes given block from vector.
    5004  void Remove(VmaDeviceMemoryBlock* pBlock);
    5005 
    5006  // Performs single step in sorting m_Blocks. They may not be fully sorted
    5007  // after this call.
    5008  void IncrementallySortBlocks();
    5009 
    5010  VkResult CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex);
    5011 };
    5012 
    5013 struct VmaPool_T
    5014 {
    5015  VMA_CLASS_NO_COPY(VmaPool_T)
    5016 public:
    5017  VmaBlockVector m_BlockVector;
    5018 
    5019  VmaPool_T(
    5020  VmaAllocator hAllocator,
    5021  const VmaPoolCreateInfo& createInfo);
    5022  ~VmaPool_T();
    5023 
    5024  uint32_t GetId() const { return m_Id; }
    5025  void SetId(uint32_t id) { VMA_ASSERT(m_Id == 0); m_Id = id; }
    5026 
    5027 #if VMA_STATS_STRING_ENABLED
    5028  //void PrintDetailedMap(class VmaStringBuilder& sb);
    5029 #endif
    5030 
    5031 private:
    5032  uint32_t m_Id;
    5033 };
    5034 
    5035 class VmaDefragmentator
    5036 {
    5037  VMA_CLASS_NO_COPY(VmaDefragmentator)
    5038 private:
    5039  const VmaAllocator m_hAllocator;
    5040  VmaBlockVector* const m_pBlockVector;
    5041  uint32_t m_CurrentFrameIndex;
    5042  VkDeviceSize m_BytesMoved;
    5043  uint32_t m_AllocationsMoved;
    5044 
    5045  struct AllocationInfo
    5046  {
    5047  VmaAllocation m_hAllocation;
    5048  VkBool32* m_pChanged;
    5049 
    5050  AllocationInfo() :
    5051  m_hAllocation(VK_NULL_HANDLE),
    5052  m_pChanged(VMA_NULL)
    5053  {
    5054  }
    5055  };
    5056 
    5057  struct AllocationInfoSizeGreater
    5058  {
    5059  bool operator()(const AllocationInfo& lhs, const AllocationInfo& rhs) const
    5060  {
    5061  return lhs.m_hAllocation->GetSize() > rhs.m_hAllocation->GetSize();
    5062  }
    5063  };
    5064 
    5065  // Used between AddAllocation and Defragment.
    5066  VmaVector< AllocationInfo, VmaStlAllocator<AllocationInfo> > m_Allocations;
    5067 
    5068  struct BlockInfo
    5069  {
    5070  VmaDeviceMemoryBlock* m_pBlock;
    5071  bool m_HasNonMovableAllocations;
    5072  VmaVector< AllocationInfo, VmaStlAllocator<AllocationInfo> > m_Allocations;
    5073 
    5074  BlockInfo(const VkAllocationCallbacks* pAllocationCallbacks) :
    5075  m_pBlock(VMA_NULL),
    5076  m_HasNonMovableAllocations(true),
    5077  m_Allocations(pAllocationCallbacks),
    5078  m_pMappedDataForDefragmentation(VMA_NULL)
    5079  {
    5080  }
    5081 
    5082  void CalcHasNonMovableAllocations()
    5083  {
    5084  const size_t blockAllocCount = m_pBlock->m_pMetadata->GetAllocationCount();
    5085  const size_t defragmentAllocCount = m_Allocations.size();
    5086  m_HasNonMovableAllocations = blockAllocCount != defragmentAllocCount;
    5087  }
    5088 
    5089  void SortAllocationsBySizeDescecnding()
    5090  {
    5091  VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoSizeGreater());
    5092  }
    5093 
    5094  VkResult EnsureMapping(VmaAllocator hAllocator, void** ppMappedData);
    5095  void Unmap(VmaAllocator hAllocator);
    5096 
    5097  private:
    5098  // Not null if mapped for defragmentation only, not originally mapped.
    5099  void* m_pMappedDataForDefragmentation;
    5100  };
    5101 
    5102  struct BlockPointerLess
    5103  {
    5104  bool operator()(const BlockInfo* pLhsBlockInfo, const VmaDeviceMemoryBlock* pRhsBlock) const
    5105  {
    5106  return pLhsBlockInfo->m_pBlock < pRhsBlock;
    5107  }
    5108  bool operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const
    5109  {
    5110  return pLhsBlockInfo->m_pBlock < pRhsBlockInfo->m_pBlock;
    5111  }
    5112  };
    5113 
    5114  // 1. Blocks with some non-movable allocations go first.
    5115  // 2. Blocks with smaller sumFreeSize go first.
    5116  struct BlockInfoCompareMoveDestination
    5117  {
    5118  bool operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const
    5119  {
    5120  if(pLhsBlockInfo->m_HasNonMovableAllocations && !pRhsBlockInfo->m_HasNonMovableAllocations)
    5121  {
    5122  return true;
    5123  }
    5124  if(!pLhsBlockInfo->m_HasNonMovableAllocations && pRhsBlockInfo->m_HasNonMovableAllocations)
    5125  {
    5126  return false;
    5127  }
    5128  if(pLhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize() < pRhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize())
    5129  {
    5130  return true;
    5131  }
    5132  return false;
    5133  }
    5134  };
    5135 
    5136  typedef VmaVector< BlockInfo*, VmaStlAllocator<BlockInfo*> > BlockInfoVector;
    5137  BlockInfoVector m_Blocks;
    5138 
    5139  VkResult DefragmentRound(
    5140  VkDeviceSize maxBytesToMove,
    5141  uint32_t maxAllocationsToMove);
    5142 
    5143  static bool MoveMakesSense(
    5144  size_t dstBlockIndex, VkDeviceSize dstOffset,
    5145  size_t srcBlockIndex, VkDeviceSize srcOffset);
    5146 
    5147 public:
    5148  VmaDefragmentator(
    5149  VmaAllocator hAllocator,
    5150  VmaBlockVector* pBlockVector,
    5151  uint32_t currentFrameIndex);
    5152 
    5153  ~VmaDefragmentator();
    5154 
    5155  VkDeviceSize GetBytesMoved() const { return m_BytesMoved; }
    5156  uint32_t GetAllocationsMoved() const { return m_AllocationsMoved; }
    5157 
    5158  void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged);
    5159 
    5160  VkResult Defragment(
    5161  VkDeviceSize maxBytesToMove,
    5162  uint32_t maxAllocationsToMove);
    5163 };
    5164 
    5165 #if VMA_RECORDING_ENABLED
    5166 
    5167 class VmaRecorder
    5168 {
    5169 public:
    5170  VmaRecorder();
    5171  VkResult Init(const VmaRecordSettings& settings, bool useMutex);
    5172  void WriteConfiguration(
    5173  const VkPhysicalDeviceProperties& devProps,
    5174  const VkPhysicalDeviceMemoryProperties& memProps,
    5175  bool dedicatedAllocationExtensionEnabled);
    5176  ~VmaRecorder();
    5177 
    5178  void RecordCreateAllocator(uint32_t frameIndex);
    5179  void RecordDestroyAllocator(uint32_t frameIndex);
    5180  void RecordCreatePool(uint32_t frameIndex,
    5181  const VmaPoolCreateInfo& createInfo,
    5182  VmaPool pool);
    5183  void RecordDestroyPool(uint32_t frameIndex, VmaPool pool);
    5184  void RecordAllocateMemory(uint32_t frameIndex,
    5185  const VkMemoryRequirements& vkMemReq,
    5186  const VmaAllocationCreateInfo& createInfo,
    5187  VmaAllocation allocation);
    5188  void RecordAllocateMemoryForBuffer(uint32_t frameIndex,
    5189  const VkMemoryRequirements& vkMemReq,
    5190  bool requiresDedicatedAllocation,
    5191  bool prefersDedicatedAllocation,
    5192  const VmaAllocationCreateInfo& createInfo,
    5193  VmaAllocation allocation);
    5194  void RecordAllocateMemoryForImage(uint32_t frameIndex,
    5195  const VkMemoryRequirements& vkMemReq,
    5196  bool requiresDedicatedAllocation,
    5197  bool prefersDedicatedAllocation,
    5198  const VmaAllocationCreateInfo& createInfo,
    5199  VmaAllocation allocation);
    5200  void RecordFreeMemory(uint32_t frameIndex,
    5201  VmaAllocation allocation);
    5202  void RecordSetAllocationUserData(uint32_t frameIndex,
    5203  VmaAllocation allocation,
    5204  const void* pUserData);
    5205  void RecordCreateLostAllocation(uint32_t frameIndex,
    5206  VmaAllocation allocation);
    5207  void RecordMapMemory(uint32_t frameIndex,
    5208  VmaAllocation allocation);
    5209  void RecordUnmapMemory(uint32_t frameIndex,
    5210  VmaAllocation allocation);
    5211  void RecordFlushAllocation(uint32_t frameIndex,
    5212  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    5213  void RecordInvalidateAllocation(uint32_t frameIndex,
    5214  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    5215  void RecordCreateBuffer(uint32_t frameIndex,
    5216  const VkBufferCreateInfo& bufCreateInfo,
    5217  const VmaAllocationCreateInfo& allocCreateInfo,
    5218  VmaAllocation allocation);
    5219  void RecordCreateImage(uint32_t frameIndex,
    5220  const VkImageCreateInfo& imageCreateInfo,
    5221  const VmaAllocationCreateInfo& allocCreateInfo,
    5222  VmaAllocation allocation);
    5223  void RecordDestroyBuffer(uint32_t frameIndex,
    5224  VmaAllocation allocation);
    5225  void RecordDestroyImage(uint32_t frameIndex,
    5226  VmaAllocation allocation);
    5227  void RecordTouchAllocation(uint32_t frameIndex,
    5228  VmaAllocation allocation);
    5229  void RecordGetAllocationInfo(uint32_t frameIndex,
    5230  VmaAllocation allocation);
    5231  void RecordMakePoolAllocationsLost(uint32_t frameIndex,
    5232  VmaPool pool);
    5233 
    5234 private:
    5235  struct CallParams
    5236  {
    5237  uint32_t threadId;
    5238  double time;
    5239  };
    5240 
    5241  class UserDataString
    5242  {
    5243  public:
    5244  UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData);
    5245  const char* GetString() const { return m_Str; }
    5246 
    5247  private:
    5248  char m_PtrStr[17];
    5249  const char* m_Str;
    5250  };
    5251 
    5252  bool m_UseMutex;
    5253  VmaRecordFlags m_Flags;
    5254  FILE* m_File;
    5255  VMA_MUTEX m_FileMutex;
    5256  int64_t m_Freq;
    5257  int64_t m_StartCounter;
    5258 
    5259  void GetBasicParams(CallParams& outParams);
    5260  void Flush();
    5261 };
    5262 
    5263 #endif // #if VMA_RECORDING_ENABLED
    5264 
    5265 // Main allocator object.
    5266 struct VmaAllocator_T
    5267 {
    5268  VMA_CLASS_NO_COPY(VmaAllocator_T)
    5269 public:
    5270  bool m_UseMutex;
    5271  bool m_UseKhrDedicatedAllocation;
    5272  VkDevice m_hDevice;
    5273  bool m_AllocationCallbacksSpecified;
    5274  VkAllocationCallbacks m_AllocationCallbacks;
    5275  VmaDeviceMemoryCallbacks m_DeviceMemoryCallbacks;
    5276 
    5277  // Number of bytes free out of limit, or VK_WHOLE_SIZE if not limit for that heap.
    5278  VkDeviceSize m_HeapSizeLimit[VK_MAX_MEMORY_HEAPS];
    5279  VMA_MUTEX m_HeapSizeLimitMutex;
    5280 
    5281  VkPhysicalDeviceProperties m_PhysicalDeviceProperties;
    5282  VkPhysicalDeviceMemoryProperties m_MemProps;
    5283 
    5284  // Default pools.
    5285  VmaBlockVector* m_pBlockVectors[VK_MAX_MEMORY_TYPES];
    5286 
    5287  // Each vector is sorted by memory (handle value).
    5288  typedef VmaVector< VmaAllocation, VmaStlAllocator<VmaAllocation> > AllocationVectorType;
    5289  AllocationVectorType* m_pDedicatedAllocations[VK_MAX_MEMORY_TYPES];
    5290  VMA_MUTEX m_DedicatedAllocationsMutex[VK_MAX_MEMORY_TYPES];
    5291 
    5292  VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo);
    5293  VkResult Init(const VmaAllocatorCreateInfo* pCreateInfo);
    5294  ~VmaAllocator_T();
    5295 
    5296  const VkAllocationCallbacks* GetAllocationCallbacks() const
    5297  {
    5298  return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : 0;
    5299  }
    5300  const VmaVulkanFunctions& GetVulkanFunctions() const
    5301  {
    5302  return m_VulkanFunctions;
    5303  }
    5304 
    5305  VkDeviceSize GetBufferImageGranularity() const
    5306  {
    5307  return VMA_MAX(
    5308  static_cast<VkDeviceSize>(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY),
    5309  m_PhysicalDeviceProperties.limits.bufferImageGranularity);
    5310  }
    5311 
    5312  uint32_t GetMemoryHeapCount() const { return m_MemProps.memoryHeapCount; }
    5313  uint32_t GetMemoryTypeCount() const { return m_MemProps.memoryTypeCount; }
    5314 
    5315  uint32_t MemoryTypeIndexToHeapIndex(uint32_t memTypeIndex) const
    5316  {
    5317  VMA_ASSERT(memTypeIndex < m_MemProps.memoryTypeCount);
    5318  return m_MemProps.memoryTypes[memTypeIndex].heapIndex;
    5319  }
    5320  // True when specific memory type is HOST_VISIBLE but not HOST_COHERENT.
    5321  bool IsMemoryTypeNonCoherent(uint32_t memTypeIndex) const
    5322  {
    5323  return (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & (VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) ==
    5324  VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    5325  }
    5326  // Minimum alignment for all allocations in specific memory type.
    5327  VkDeviceSize GetMemoryTypeMinAlignment(uint32_t memTypeIndex) const
    5328  {
    5329  return IsMemoryTypeNonCoherent(memTypeIndex) ?
    5330  VMA_MAX((VkDeviceSize)VMA_DEBUG_ALIGNMENT, m_PhysicalDeviceProperties.limits.nonCoherentAtomSize) :
    5331  (VkDeviceSize)VMA_DEBUG_ALIGNMENT;
    5332  }
    5333 
    5334  bool IsIntegratedGpu() const
    5335  {
    5336  return m_PhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
    5337  }
    5338 
    5339 #if VMA_RECORDING_ENABLED
    5340  VmaRecorder* GetRecorder() const { return m_pRecorder; }
    5341 #endif
    5342 
    5343  void GetBufferMemoryRequirements(
    5344  VkBuffer hBuffer,
    5345  VkMemoryRequirements& memReq,
    5346  bool& requiresDedicatedAllocation,
    5347  bool& prefersDedicatedAllocation) const;
    5348  void GetImageMemoryRequirements(
    5349  VkImage hImage,
    5350  VkMemoryRequirements& memReq,
    5351  bool& requiresDedicatedAllocation,
    5352  bool& prefersDedicatedAllocation) const;
    5353 
    5354  // Main allocation function.
    5355  VkResult AllocateMemory(
    5356  const VkMemoryRequirements& vkMemReq,
    5357  bool requiresDedicatedAllocation,
    5358  bool prefersDedicatedAllocation,
    5359  VkBuffer dedicatedBuffer,
    5360  VkImage dedicatedImage,
    5361  const VmaAllocationCreateInfo& createInfo,
    5362  VmaSuballocationType suballocType,
    5363  VmaAllocation* pAllocation);
    5364 
    5365  // Main deallocation function.
    5366  void FreeMemory(const VmaAllocation allocation);
    5367 
    5368  void CalculateStats(VmaStats* pStats);
    5369 
    5370 #if VMA_STATS_STRING_ENABLED
    5371  void PrintDetailedMap(class VmaJsonWriter& json);
    5372 #endif
    5373 
    5374  VkResult Defragment(
    5375  VmaAllocation* pAllocations,
    5376  size_t allocationCount,
    5377  VkBool32* pAllocationsChanged,
    5378  const VmaDefragmentationInfo* pDefragmentationInfo,
    5379  VmaDefragmentationStats* pDefragmentationStats);
    5380 
    5381  void GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo);
    5382  bool TouchAllocation(VmaAllocation hAllocation);
    5383 
    5384  VkResult CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool);
    5385  void DestroyPool(VmaPool pool);
    5386  void GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats);
    5387 
    5388  void SetCurrentFrameIndex(uint32_t frameIndex);
    5389  uint32_t GetCurrentFrameIndex() const { return m_CurrentFrameIndex.load(); }
    5390 
    5391  void MakePoolAllocationsLost(
    5392  VmaPool hPool,
    5393  size_t* pLostAllocationCount);
    5394  VkResult CheckPoolCorruption(VmaPool hPool);
    5395  VkResult CheckCorruption(uint32_t memoryTypeBits);
    5396 
    5397  void CreateLostAllocation(VmaAllocation* pAllocation);
    5398 
    5399  VkResult AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory);
    5400  void FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory);
    5401 
    5402  VkResult Map(VmaAllocation hAllocation, void** ppData);
    5403  void Unmap(VmaAllocation hAllocation);
    5404 
    5405  VkResult BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer);
    5406  VkResult BindImageMemory(VmaAllocation hAllocation, VkImage hImage);
    5407 
    5408  void FlushOrInvalidateAllocation(
    5409  VmaAllocation hAllocation,
    5410  VkDeviceSize offset, VkDeviceSize size,
    5411  VMA_CACHE_OPERATION op);
    5412 
    5413  void FillAllocation(const VmaAllocation hAllocation, uint8_t pattern);
    5414 
    5415 private:
    5416  VkDeviceSize m_PreferredLargeHeapBlockSize;
    5417 
    5418  VkPhysicalDevice m_PhysicalDevice;
    5419  VMA_ATOMIC_UINT32 m_CurrentFrameIndex;
    5420 
    5421  VMA_MUTEX m_PoolsMutex;
    5422  // Protected by m_PoolsMutex. Sorted by pointer value.
    5423  VmaVector<VmaPool, VmaStlAllocator<VmaPool> > m_Pools;
    5424  uint32_t m_NextPoolId;
    5425 
    5426  VmaVulkanFunctions m_VulkanFunctions;
    5427 
    5428 #if VMA_RECORDING_ENABLED
    5429  VmaRecorder* m_pRecorder;
    5430 #endif
    5431 
    5432  void ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions);
    5433 
    5434  VkDeviceSize CalcPreferredBlockSize(uint32_t memTypeIndex);
    5435 
    5436  VkResult AllocateMemoryOfType(
    5437  VkDeviceSize size,
    5438  VkDeviceSize alignment,
    5439  bool dedicatedAllocation,
    5440  VkBuffer dedicatedBuffer,
    5441  VkImage dedicatedImage,
    5442  const VmaAllocationCreateInfo& createInfo,
    5443  uint32_t memTypeIndex,
    5444  VmaSuballocationType suballocType,
    5445  VmaAllocation* pAllocation);
    5446 
    5447  // Allocates and registers new VkDeviceMemory specifically for single allocation.
    5448  VkResult AllocateDedicatedMemory(
    5449  VkDeviceSize size,
    5450  VmaSuballocationType suballocType,
    5451  uint32_t memTypeIndex,
    5452  bool map,
    5453  bool isUserDataString,
    5454  void* pUserData,
    5455  VkBuffer dedicatedBuffer,
    5456  VkImage dedicatedImage,
    5457  VmaAllocation* pAllocation);
    5458 
    5459  // Tries to free pMemory as Dedicated Memory. Returns true if found and freed.
    5460  void FreeDedicatedMemory(VmaAllocation allocation);
    5461 };
    5462 
    5464 // Memory allocation #2 after VmaAllocator_T definition
    5465 
    5466 static void* VmaMalloc(VmaAllocator hAllocator, size_t size, size_t alignment)
    5467 {
    5468  return VmaMalloc(&hAllocator->m_AllocationCallbacks, size, alignment);
    5469 }
    5470 
    5471 static void VmaFree(VmaAllocator hAllocator, void* ptr)
    5472 {
    5473  VmaFree(&hAllocator->m_AllocationCallbacks, ptr);
    5474 }
    5475 
    5476 template<typename T>
    5477 static T* VmaAllocate(VmaAllocator hAllocator)
    5478 {
    5479  return (T*)VmaMalloc(hAllocator, sizeof(T), VMA_ALIGN_OF(T));
    5480 }
    5481 
    5482 template<typename T>
    5483 static T* VmaAllocateArray(VmaAllocator hAllocator, size_t count)
    5484 {
    5485  return (T*)VmaMalloc(hAllocator, sizeof(T) * count, VMA_ALIGN_OF(T));
    5486 }
    5487 
    5488 template<typename T>
    5489 static void vma_delete(VmaAllocator hAllocator, T* ptr)
    5490 {
    5491  if(ptr != VMA_NULL)
    5492  {
    5493  ptr->~T();
    5494  VmaFree(hAllocator, ptr);
    5495  }
    5496 }
    5497 
    5498 template<typename T>
    5499 static void vma_delete_array(VmaAllocator hAllocator, T* ptr, size_t count)
    5500 {
    5501  if(ptr != VMA_NULL)
    5502  {
    5503  for(size_t i = count; i--; )
    5504  ptr[i].~T();
    5505  VmaFree(hAllocator, ptr);
    5506  }
    5507 }
    5508 
    5510 // VmaStringBuilder
    5511 
    5512 #if VMA_STATS_STRING_ENABLED
    5513 
    5514 class VmaStringBuilder
    5515 {
    5516 public:
    5517  VmaStringBuilder(VmaAllocator alloc) : m_Data(VmaStlAllocator<char>(alloc->GetAllocationCallbacks())) { }
    5518  size_t GetLength() const { return m_Data.size(); }
    5519  const char* GetData() const { return m_Data.data(); }
    5520 
    5521  void Add(char ch) { m_Data.push_back(ch); }
    5522  void Add(const char* pStr);
    5523  void AddNewLine() { Add('\n'); }
    5524  void AddNumber(uint32_t num);
    5525  void AddNumber(uint64_t num);
    5526  void AddPointer(const void* ptr);
    5527 
    5528 private:
    5529  VmaVector< char, VmaStlAllocator<char> > m_Data;
    5530 };
    5531 
    5532 void VmaStringBuilder::Add(const char* pStr)
    5533 {
    5534  const size_t strLen = strlen(pStr);
    5535  if(strLen > 0)
    5536  {
    5537  const size_t oldCount = m_Data.size();
    5538  m_Data.resize(oldCount + strLen);
    5539  memcpy(m_Data.data() + oldCount, pStr, strLen);
    5540  }
    5541 }
    5542 
    5543 void VmaStringBuilder::AddNumber(uint32_t num)
    5544 {
    5545  char buf[11];
    5546  VmaUint32ToStr(buf, sizeof(buf), num);
    5547  Add(buf);
    5548 }
    5549 
    5550 void VmaStringBuilder::AddNumber(uint64_t num)
    5551 {
    5552  char buf[21];
    5553  VmaUint64ToStr(buf, sizeof(buf), num);
    5554  Add(buf);
    5555 }
    5556 
    5557 void VmaStringBuilder::AddPointer(const void* ptr)
    5558 {
    5559  char buf[21];
    5560  VmaPtrToStr(buf, sizeof(buf), ptr);
    5561  Add(buf);
    5562 }
    5563 
    5564 #endif // #if VMA_STATS_STRING_ENABLED
    5565 
    5567 // VmaJsonWriter
    5568 
    5569 #if VMA_STATS_STRING_ENABLED
    5570 
    5571 class VmaJsonWriter
    5572 {
    5573  VMA_CLASS_NO_COPY(VmaJsonWriter)
    5574 public:
    5575  VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb);
    5576  ~VmaJsonWriter();
    5577 
    5578  void BeginObject(bool singleLine = false);
    5579  void EndObject();
    5580 
    5581  void BeginArray(bool singleLine = false);
    5582  void EndArray();
    5583 
    5584  void WriteString(const char* pStr);
    5585  void BeginString(const char* pStr = VMA_NULL);
    5586  void ContinueString(const char* pStr);
    5587  void ContinueString(uint32_t n);
    5588  void ContinueString(uint64_t n);
    5589  void ContinueString_Pointer(const void* ptr);
    5590  void EndString(const char* pStr = VMA_NULL);
    5591 
    5592  void WriteNumber(uint32_t n);
    5593  void WriteNumber(uint64_t n);
    5594  void WriteBool(bool b);
    5595  void WriteNull();
    5596 
    5597 private:
    5598  static const char* const INDENT;
    5599 
    5600  enum COLLECTION_TYPE
    5601  {
    5602  COLLECTION_TYPE_OBJECT,
    5603  COLLECTION_TYPE_ARRAY,
    5604  };
    5605  struct StackItem
    5606  {
    5607  COLLECTION_TYPE type;
    5608  uint32_t valueCount;
    5609  bool singleLineMode;
    5610  };
    5611 
    5612  VmaStringBuilder& m_SB;
    5613  VmaVector< StackItem, VmaStlAllocator<StackItem> > m_Stack;
    5614  bool m_InsideString;
    5615 
    5616  void BeginValue(bool isString);
    5617  void WriteIndent(bool oneLess = false);
    5618 };
    5619 
    5620 const char* const VmaJsonWriter::INDENT = " ";
    5621 
    5622 VmaJsonWriter::VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb) :
    5623  m_SB(sb),
    5624  m_Stack(VmaStlAllocator<StackItem>(pAllocationCallbacks)),
    5625  m_InsideString(false)
    5626 {
    5627 }
    5628 
    5629 VmaJsonWriter::~VmaJsonWriter()
    5630 {
    5631  VMA_ASSERT(!m_InsideString);
    5632  VMA_ASSERT(m_Stack.empty());
    5633 }
    5634 
    5635 void VmaJsonWriter::BeginObject(bool singleLine)
    5636 {
    5637  VMA_ASSERT(!m_InsideString);
    5638 
    5639  BeginValue(false);
    5640  m_SB.Add('{');
    5641 
    5642  StackItem item;
    5643  item.type = COLLECTION_TYPE_OBJECT;
    5644  item.valueCount = 0;
    5645  item.singleLineMode = singleLine;
    5646  m_Stack.push_back(item);
    5647 }
    5648 
    5649 void VmaJsonWriter::EndObject()
    5650 {
    5651  VMA_ASSERT(!m_InsideString);
    5652 
    5653  WriteIndent(true);
    5654  m_SB.Add('}');
    5655 
    5656  VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_OBJECT);
    5657  m_Stack.pop_back();
    5658 }
    5659 
    5660 void VmaJsonWriter::BeginArray(bool singleLine)
    5661 {
    5662  VMA_ASSERT(!m_InsideString);
    5663 
    5664  BeginValue(false);
    5665  m_SB.Add('[');
    5666 
    5667  StackItem item;
    5668  item.type = COLLECTION_TYPE_ARRAY;
    5669  item.valueCount = 0;
    5670  item.singleLineMode = singleLine;
    5671  m_Stack.push_back(item);
    5672 }
    5673 
    5674 void VmaJsonWriter::EndArray()
    5675 {
    5676  VMA_ASSERT(!m_InsideString);
    5677 
    5678  WriteIndent(true);
    5679  m_SB.Add(']');
    5680 
    5681  VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_ARRAY);
    5682  m_Stack.pop_back();
    5683 }
    5684 
    5685 void VmaJsonWriter::WriteString(const char* pStr)
    5686 {
    5687  BeginString(pStr);
    5688  EndString();
    5689 }
    5690 
    5691 void VmaJsonWriter::BeginString(const char* pStr)
    5692 {
    5693  VMA_ASSERT(!m_InsideString);
    5694 
    5695  BeginValue(true);
    5696  m_SB.Add('"');
    5697  m_InsideString = true;
    5698  if(pStr != VMA_NULL && pStr[0] != '\0')
    5699  {
    5700  ContinueString(pStr);
    5701  }
    5702 }
    5703 
    5704 void VmaJsonWriter::ContinueString(const char* pStr)
    5705 {
    5706  VMA_ASSERT(m_InsideString);
    5707 
    5708  const size_t strLen = strlen(pStr);
    5709  for(size_t i = 0; i < strLen; ++i)
    5710  {
    5711  char ch = pStr[i];
    5712  if(ch == '\\')
    5713  {
    5714  m_SB.Add("\\\\");
    5715  }
    5716  else if(ch == '"')
    5717  {
    5718  m_SB.Add("\\\"");
    5719  }
    5720  else if(ch >= 32)
    5721  {
    5722  m_SB.Add(ch);
    5723  }
    5724  else switch(ch)
    5725  {
    5726  case '\b':
    5727  m_SB.Add("\\b");
    5728  break;
    5729  case '\f':
    5730  m_SB.Add("\\f");
    5731  break;
    5732  case '\n':
    5733  m_SB.Add("\\n");
    5734  break;
    5735  case '\r':
    5736  m_SB.Add("\\r");
    5737  break;
    5738  case '\t':
    5739  m_SB.Add("\\t");
    5740  break;
    5741  default:
    5742  VMA_ASSERT(0 && "Character not currently supported.");
    5743  break;
    5744  }
    5745  }
    5746 }
    5747 
    5748 void VmaJsonWriter::ContinueString(uint32_t n)
    5749 {
    5750  VMA_ASSERT(m_InsideString);
    5751  m_SB.AddNumber(n);
    5752 }
    5753 
    5754 void VmaJsonWriter::ContinueString(uint64_t n)
    5755 {
    5756  VMA_ASSERT(m_InsideString);
    5757  m_SB.AddNumber(n);
    5758 }
    5759 
    5760 void VmaJsonWriter::ContinueString_Pointer(const void* ptr)
    5761 {
    5762  VMA_ASSERT(m_InsideString);
    5763  m_SB.AddPointer(ptr);
    5764 }
    5765 
    5766 void VmaJsonWriter::EndString(const char* pStr)
    5767 {
    5768  VMA_ASSERT(m_InsideString);
    5769  if(pStr != VMA_NULL && pStr[0] != '\0')
    5770  {
    5771  ContinueString(pStr);
    5772  }
    5773  m_SB.Add('"');
    5774  m_InsideString = false;
    5775 }
    5776 
    5777 void VmaJsonWriter::WriteNumber(uint32_t n)
    5778 {
    5779  VMA_ASSERT(!m_InsideString);
    5780  BeginValue(false);
    5781  m_SB.AddNumber(n);
    5782 }
    5783 
    5784 void VmaJsonWriter::WriteNumber(uint64_t n)
    5785 {
    5786  VMA_ASSERT(!m_InsideString);
    5787  BeginValue(false);
    5788  m_SB.AddNumber(n);
    5789 }
    5790 
    5791 void VmaJsonWriter::WriteBool(bool b)
    5792 {
    5793  VMA_ASSERT(!m_InsideString);
    5794  BeginValue(false);
    5795  m_SB.Add(b ? "true" : "false");
    5796 }
    5797 
    5798 void VmaJsonWriter::WriteNull()
    5799 {
    5800  VMA_ASSERT(!m_InsideString);
    5801  BeginValue(false);
    5802  m_SB.Add("null");
    5803 }
    5804 
    5805 void VmaJsonWriter::BeginValue(bool isString)
    5806 {
    5807  if(!m_Stack.empty())
    5808  {
    5809  StackItem& currItem = m_Stack.back();
    5810  if(currItem.type == COLLECTION_TYPE_OBJECT &&
    5811  currItem.valueCount % 2 == 0)
    5812  {
    5813  VMA_ASSERT(isString);
    5814  }
    5815 
    5816  if(currItem.type == COLLECTION_TYPE_OBJECT &&
    5817  currItem.valueCount % 2 != 0)
    5818  {
    5819  m_SB.Add(": ");
    5820  }
    5821  else if(currItem.valueCount > 0)
    5822  {
    5823  m_SB.Add(", ");
    5824  WriteIndent();
    5825  }
    5826  else
    5827  {
    5828  WriteIndent();
    5829  }
    5830  ++currItem.valueCount;
    5831  }
    5832 }
    5833 
    5834 void VmaJsonWriter::WriteIndent(bool oneLess)
    5835 {
    5836  if(!m_Stack.empty() && !m_Stack.back().singleLineMode)
    5837  {
    5838  m_SB.AddNewLine();
    5839 
    5840  size_t count = m_Stack.size();
    5841  if(count > 0 && oneLess)
    5842  {
    5843  --count;
    5844  }
    5845  for(size_t i = 0; i < count; ++i)
    5846  {
    5847  m_SB.Add(INDENT);
    5848  }
    5849  }
    5850 }
    5851 
    5852 #endif // #if VMA_STATS_STRING_ENABLED
    5853 
    5855 
    5856 void VmaAllocation_T::SetUserData(VmaAllocator hAllocator, void* pUserData)
    5857 {
    5858  if(IsUserDataString())
    5859  {
    5860  VMA_ASSERT(pUserData == VMA_NULL || pUserData != m_pUserData);
    5861 
    5862  FreeUserDataString(hAllocator);
    5863 
    5864  if(pUserData != VMA_NULL)
    5865  {
    5866  const char* const newStrSrc = (char*)pUserData;
    5867  const size_t newStrLen = strlen(newStrSrc);
    5868  char* const newStrDst = vma_new_array(hAllocator, char, newStrLen + 1);
    5869  memcpy(newStrDst, newStrSrc, newStrLen + 1);
    5870  m_pUserData = newStrDst;
    5871  }
    5872  }
    5873  else
    5874  {
    5875  m_pUserData = pUserData;
    5876  }
    5877 }
    5878 
    5879 void VmaAllocation_T::ChangeBlockAllocation(
    5880  VmaAllocator hAllocator,
    5881  VmaDeviceMemoryBlock* block,
    5882  VkDeviceSize offset)
    5883 {
    5884  VMA_ASSERT(block != VMA_NULL);
    5885  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    5886 
    5887  // Move mapping reference counter from old block to new block.
    5888  if(block != m_BlockAllocation.m_Block)
    5889  {
    5890  uint32_t mapRefCount = m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP;
    5891  if(IsPersistentMap())
    5892  ++mapRefCount;
    5893  m_BlockAllocation.m_Block->Unmap(hAllocator, mapRefCount);
    5894  block->Map(hAllocator, mapRefCount, VMA_NULL);
    5895  }
    5896 
    5897  m_BlockAllocation.m_Block = block;
    5898  m_BlockAllocation.m_Offset = offset;
    5899 }
    5900 
    5901 VkDeviceSize VmaAllocation_T::GetOffset() const
    5902 {
    5903  switch(m_Type)
    5904  {
    5905  case ALLOCATION_TYPE_BLOCK:
    5906  return m_BlockAllocation.m_Offset;
    5907  case ALLOCATION_TYPE_DEDICATED:
    5908  return 0;
    5909  default:
    5910  VMA_ASSERT(0);
    5911  return 0;
    5912  }
    5913 }
    5914 
    5915 VkDeviceMemory VmaAllocation_T::GetMemory() const
    5916 {
    5917  switch(m_Type)
    5918  {
    5919  case ALLOCATION_TYPE_BLOCK:
    5920  return m_BlockAllocation.m_Block->GetDeviceMemory();
    5921  case ALLOCATION_TYPE_DEDICATED:
    5922  return m_DedicatedAllocation.m_hMemory;
    5923  default:
    5924  VMA_ASSERT(0);
    5925  return VK_NULL_HANDLE;
    5926  }
    5927 }
    5928 
    5929 uint32_t VmaAllocation_T::GetMemoryTypeIndex() const
    5930 {
    5931  switch(m_Type)
    5932  {
    5933  case ALLOCATION_TYPE_BLOCK:
    5934  return m_BlockAllocation.m_Block->GetMemoryTypeIndex();
    5935  case ALLOCATION_TYPE_DEDICATED:
    5936  return m_DedicatedAllocation.m_MemoryTypeIndex;
    5937  default:
    5938  VMA_ASSERT(0);
    5939  return UINT32_MAX;
    5940  }
    5941 }
    5942 
    5943 void* VmaAllocation_T::GetMappedData() const
    5944 {
    5945  switch(m_Type)
    5946  {
    5947  case ALLOCATION_TYPE_BLOCK:
    5948  if(m_MapCount != 0)
    5949  {
    5950  void* pBlockData = m_BlockAllocation.m_Block->GetMappedData();
    5951  VMA_ASSERT(pBlockData != VMA_NULL);
    5952  return (char*)pBlockData + m_BlockAllocation.m_Offset;
    5953  }
    5954  else
    5955  {
    5956  return VMA_NULL;
    5957  }
    5958  break;
    5959  case ALLOCATION_TYPE_DEDICATED:
    5960  VMA_ASSERT((m_DedicatedAllocation.m_pMappedData != VMA_NULL) == (m_MapCount != 0));
    5961  return m_DedicatedAllocation.m_pMappedData;
    5962  default:
    5963  VMA_ASSERT(0);
    5964  return VMA_NULL;
    5965  }
    5966 }
    5967 
    5968 bool VmaAllocation_T::CanBecomeLost() const
    5969 {
    5970  switch(m_Type)
    5971  {
    5972  case ALLOCATION_TYPE_BLOCK:
    5973  return m_BlockAllocation.m_CanBecomeLost;
    5974  case ALLOCATION_TYPE_DEDICATED:
    5975  return false;
    5976  default:
    5977  VMA_ASSERT(0);
    5978  return false;
    5979  }
    5980 }
    5981 
    5982 VmaPool VmaAllocation_T::GetPool() const
    5983 {
    5984  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    5985  return m_BlockAllocation.m_hPool;
    5986 }
    5987 
    5988 bool VmaAllocation_T::MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    5989 {
    5990  VMA_ASSERT(CanBecomeLost());
    5991 
    5992  /*
    5993  Warning: This is a carefully designed algorithm.
    5994  Do not modify unless you really know what you're doing :)
    5995  */
    5996  uint32_t localLastUseFrameIndex = GetLastUseFrameIndex();
    5997  for(;;)
    5998  {
    5999  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    6000  {
    6001  VMA_ASSERT(0);
    6002  return false;
    6003  }
    6004  else if(localLastUseFrameIndex + frameInUseCount >= currentFrameIndex)
    6005  {
    6006  return false;
    6007  }
    6008  else // Last use time earlier than current time.
    6009  {
    6010  if(CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, VMA_FRAME_INDEX_LOST))
    6011  {
    6012  // Setting hAllocation.LastUseFrameIndex atomic to VMA_FRAME_INDEX_LOST is enough to mark it as LOST.
    6013  // Calling code just needs to unregister this allocation in owning VmaDeviceMemoryBlock.
    6014  return true;
    6015  }
    6016  }
    6017  }
    6018 }
    6019 
    6020 #if VMA_STATS_STRING_ENABLED
    6021 
    6022 // Correspond to values of enum VmaSuballocationType.
    6023 static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = {
    6024  "FREE",
    6025  "UNKNOWN",
    6026  "BUFFER",
    6027  "IMAGE_UNKNOWN",
    6028  "IMAGE_LINEAR",
    6029  "IMAGE_OPTIMAL",
    6030 };
    6031 
    6032 void VmaAllocation_T::PrintParameters(class VmaJsonWriter& json) const
    6033 {
    6034  json.WriteString("Type");
    6035  json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[m_SuballocationType]);
    6036 
    6037  json.WriteString("Size");
    6038  json.WriteNumber(m_Size);
    6039 
    6040  if(m_pUserData != VMA_NULL)
    6041  {
    6042  json.WriteString("UserData");
    6043  if(IsUserDataString())
    6044  {
    6045  json.WriteString((const char*)m_pUserData);
    6046  }
    6047  else
    6048  {
    6049  json.BeginString();
    6050  json.ContinueString_Pointer(m_pUserData);
    6051  json.EndString();
    6052  }
    6053  }
    6054 
    6055  json.WriteString("CreationFrameIndex");
    6056  json.WriteNumber(m_CreationFrameIndex);
    6057 
    6058  json.WriteString("LastUseFrameIndex");
    6059  json.WriteNumber(GetLastUseFrameIndex());
    6060 
    6061  if(m_BufferImageUsage != 0)
    6062  {
    6063  json.WriteString("Usage");
    6064  json.WriteNumber(m_BufferImageUsage);
    6065  }
    6066 }
    6067 
    6068 #endif
    6069 
    6070 void VmaAllocation_T::FreeUserDataString(VmaAllocator hAllocator)
    6071 {
    6072  VMA_ASSERT(IsUserDataString());
    6073  if(m_pUserData != VMA_NULL)
    6074  {
    6075  char* const oldStr = (char*)m_pUserData;
    6076  const size_t oldStrLen = strlen(oldStr);
    6077  vma_delete_array(hAllocator, oldStr, oldStrLen + 1);
    6078  m_pUserData = VMA_NULL;
    6079  }
    6080 }
    6081 
    6082 void VmaAllocation_T::BlockAllocMap()
    6083 {
    6084  VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
    6085 
    6086  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) < 0x7F)
    6087  {
    6088  ++m_MapCount;
    6089  }
    6090  else
    6091  {
    6092  VMA_ASSERT(0 && "Allocation mapped too many times simultaneously.");
    6093  }
    6094 }
    6095 
    6096 void VmaAllocation_T::BlockAllocUnmap()
    6097 {
    6098  VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
    6099 
    6100  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) != 0)
    6101  {
    6102  --m_MapCount;
    6103  }
    6104  else
    6105  {
    6106  VMA_ASSERT(0 && "Unmapping allocation not previously mapped.");
    6107  }
    6108 }
    6109 
    6110 VkResult VmaAllocation_T::DedicatedAllocMap(VmaAllocator hAllocator, void** ppData)
    6111 {
    6112  VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
    6113 
    6114  if(m_MapCount != 0)
    6115  {
    6116  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) < 0x7F)
    6117  {
    6118  VMA_ASSERT(m_DedicatedAllocation.m_pMappedData != VMA_NULL);
    6119  *ppData = m_DedicatedAllocation.m_pMappedData;
    6120  ++m_MapCount;
    6121  return VK_SUCCESS;
    6122  }
    6123  else
    6124  {
    6125  VMA_ASSERT(0 && "Dedicated allocation mapped too many times simultaneously.");
    6126  return VK_ERROR_MEMORY_MAP_FAILED;
    6127  }
    6128  }
    6129  else
    6130  {
    6131  VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
    6132  hAllocator->m_hDevice,
    6133  m_DedicatedAllocation.m_hMemory,
    6134  0, // offset
    6135  VK_WHOLE_SIZE,
    6136  0, // flags
    6137  ppData);
    6138  if(result == VK_SUCCESS)
    6139  {
    6140  m_DedicatedAllocation.m_pMappedData = *ppData;
    6141  m_MapCount = 1;
    6142  }
    6143  return result;
    6144  }
    6145 }
    6146 
    6147 void VmaAllocation_T::DedicatedAllocUnmap(VmaAllocator hAllocator)
    6148 {
    6149  VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
    6150 
    6151  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) != 0)
    6152  {
    6153  --m_MapCount;
    6154  if(m_MapCount == 0)
    6155  {
    6156  m_DedicatedAllocation.m_pMappedData = VMA_NULL;
    6157  (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(
    6158  hAllocator->m_hDevice,
    6159  m_DedicatedAllocation.m_hMemory);
    6160  }
    6161  }
    6162  else
    6163  {
    6164  VMA_ASSERT(0 && "Unmapping dedicated allocation not previously mapped.");
    6165  }
    6166 }
    6167 
    6168 #if VMA_STATS_STRING_ENABLED
    6169 
    6170 static void VmaPrintStatInfo(VmaJsonWriter& json, const VmaStatInfo& stat)
    6171 {
    6172  json.BeginObject();
    6173 
    6174  json.WriteString("Blocks");
    6175  json.WriteNumber(stat.blockCount);
    6176 
    6177  json.WriteString("Allocations");
    6178  json.WriteNumber(stat.allocationCount);
    6179 
    6180  json.WriteString("UnusedRanges");
    6181  json.WriteNumber(stat.unusedRangeCount);
    6182 
    6183  json.WriteString("UsedBytes");
    6184  json.WriteNumber(stat.usedBytes);
    6185 
    6186  json.WriteString("UnusedBytes");
    6187  json.WriteNumber(stat.unusedBytes);
    6188 
    6189  if(stat.allocationCount > 1)
    6190  {
    6191  json.WriteString("AllocationSize");
    6192  json.BeginObject(true);
    6193  json.WriteString("Min");
    6194  json.WriteNumber(stat.allocationSizeMin);
    6195  json.WriteString("Avg");
    6196  json.WriteNumber(stat.allocationSizeAvg);
    6197  json.WriteString("Max");
    6198  json.WriteNumber(stat.allocationSizeMax);
    6199  json.EndObject();
    6200  }
    6201 
    6202  if(stat.unusedRangeCount > 1)
    6203  {
    6204  json.WriteString("UnusedRangeSize");
    6205  json.BeginObject(true);
    6206  json.WriteString("Min");
    6207  json.WriteNumber(stat.unusedRangeSizeMin);
    6208  json.WriteString("Avg");
    6209  json.WriteNumber(stat.unusedRangeSizeAvg);
    6210  json.WriteString("Max");
    6211  json.WriteNumber(stat.unusedRangeSizeMax);
    6212  json.EndObject();
    6213  }
    6214 
    6215  json.EndObject();
    6216 }
    6217 
    6218 #endif // #if VMA_STATS_STRING_ENABLED
    6219 
    6220 struct VmaSuballocationItemSizeLess
    6221 {
    6222  bool operator()(
    6223  const VmaSuballocationList::iterator lhs,
    6224  const VmaSuballocationList::iterator rhs) const
    6225  {
    6226  return lhs->size < rhs->size;
    6227  }
    6228  bool operator()(
    6229  const VmaSuballocationList::iterator lhs,
    6230  VkDeviceSize rhsSize) const
    6231  {
    6232  return lhs->size < rhsSize;
    6233  }
    6234 };
    6235 
    6236 
    6238 // class VmaBlockMetadata
    6239 
    6240 #if VMA_STATS_STRING_ENABLED
    6241 
    6242 void VmaBlockMetadata::PrintDetailedMap_Begin(class VmaJsonWriter& json,
    6243  VkDeviceSize unusedBytes,
    6244  size_t allocationCount,
    6245  size_t unusedRangeCount) const
    6246 {
    6247  json.BeginObject();
    6248 
    6249  json.WriteString("TotalBytes");
    6250  json.WriteNumber(GetSize());
    6251 
    6252  json.WriteString("UnusedBytes");
    6253  json.WriteNumber(unusedBytes);
    6254 
    6255  json.WriteString("Allocations");
    6256  json.WriteNumber((uint64_t)allocationCount);
    6257 
    6258  json.WriteString("UnusedRanges");
    6259  json.WriteNumber((uint64_t)unusedRangeCount);
    6260 
    6261  json.WriteString("Suballocations");
    6262  json.BeginArray();
    6263 }
    6264 
    6265 void VmaBlockMetadata::PrintDetailedMap_Allocation(class VmaJsonWriter& json,
    6266  VkDeviceSize offset,
    6267  VmaAllocation hAllocation) const
    6268 {
    6269  json.BeginObject(true);
    6270 
    6271  json.WriteString("Offset");
    6272  json.WriteNumber(offset);
    6273 
    6274  hAllocation->PrintParameters(json);
    6275 
    6276  json.EndObject();
    6277 }
    6278 
    6279 void VmaBlockMetadata::PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
    6280  VkDeviceSize offset,
    6281  VkDeviceSize size) const
    6282 {
    6283  json.BeginObject(true);
    6284 
    6285  json.WriteString("Offset");
    6286  json.WriteNumber(offset);
    6287 
    6288  json.WriteString("Type");
    6289  json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[VMA_SUBALLOCATION_TYPE_FREE]);
    6290 
    6291  json.WriteString("Size");
    6292  json.WriteNumber(size);
    6293 
    6294  json.EndObject();
    6295 }
    6296 
    6297 void VmaBlockMetadata::PrintDetailedMap_End(class VmaJsonWriter& json) const
    6298 {
    6299  json.EndArray();
    6300  json.EndObject();
    6301 }
    6302 
    6303 #endif // #if VMA_STATS_STRING_ENABLED
    6304 
    6306 // class VmaBlockMetadata_Generic
    6307 
    6308 VmaBlockMetadata_Generic::VmaBlockMetadata_Generic(VmaAllocator hAllocator) :
    6309  m_FreeCount(0),
    6310  m_SumFreeSize(0),
    6311  m_Suballocations(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    6312  m_FreeSuballocationsBySize(VmaStlAllocator<VmaSuballocationList::iterator>(hAllocator->GetAllocationCallbacks()))
    6313 {
    6314 }
    6315 
    6316 VmaBlockMetadata_Generic::~VmaBlockMetadata_Generic()
    6317 {
    6318 }
    6319 
    6320 void VmaBlockMetadata_Generic::Init(VkDeviceSize size)
    6321 {
    6322  VmaBlockMetadata::Init(size);
    6323  m_FreeCount = 1;
    6324  m_SumFreeSize = size;
    6325 
    6326  VmaSuballocation suballoc = {};
    6327  suballoc.offset = 0;
    6328  suballoc.size = size;
    6329  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6330  suballoc.hAllocation = VK_NULL_HANDLE;
    6331 
    6332  m_Suballocations.push_back(suballoc);
    6333  VmaSuballocationList::iterator suballocItem = m_Suballocations.end();
    6334  --suballocItem;
    6335  m_FreeSuballocationsBySize.push_back(suballocItem);
    6336 }
    6337 
    6338 bool VmaBlockMetadata_Generic::Validate() const
    6339 {
    6340  if(m_Suballocations.empty())
    6341  {
    6342  return false;
    6343  }
    6344 
    6345  // Expected offset of new suballocation as calculated from previous ones.
    6346  VkDeviceSize calculatedOffset = 0;
    6347  // Expected number of free suballocations as calculated from traversing their list.
    6348  uint32_t calculatedFreeCount = 0;
    6349  // Expected sum size of free suballocations as calculated from traversing their list.
    6350  VkDeviceSize calculatedSumFreeSize = 0;
    6351  // Expected number of free suballocations that should be registered in
    6352  // m_FreeSuballocationsBySize calculated from traversing their list.
    6353  size_t freeSuballocationsToRegister = 0;
    6354  // True if previous visited suballocation was free.
    6355  bool prevFree = false;
    6356 
    6357  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6358  suballocItem != m_Suballocations.cend();
    6359  ++suballocItem)
    6360  {
    6361  const VmaSuballocation& subAlloc = *suballocItem;
    6362 
    6363  // Actual offset of this suballocation doesn't match expected one.
    6364  if(subAlloc.offset != calculatedOffset)
    6365  {
    6366  return false;
    6367  }
    6368 
    6369  const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE);
    6370  // Two adjacent free suballocations are invalid. They should be merged.
    6371  if(prevFree && currFree)
    6372  {
    6373  return false;
    6374  }
    6375 
    6376  if(currFree != (subAlloc.hAllocation == VK_NULL_HANDLE))
    6377  {
    6378  return false;
    6379  }
    6380 
    6381  if(currFree)
    6382  {
    6383  calculatedSumFreeSize += subAlloc.size;
    6384  ++calculatedFreeCount;
    6385  if(subAlloc.size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    6386  {
    6387  ++freeSuballocationsToRegister;
    6388  }
    6389 
    6390  // Margin required between allocations - every free space must be at least that large.
    6391  if(subAlloc.size < VMA_DEBUG_MARGIN)
    6392  {
    6393  return false;
    6394  }
    6395  }
    6396  else
    6397  {
    6398  if(subAlloc.hAllocation->GetOffset() != subAlloc.offset)
    6399  {
    6400  return false;
    6401  }
    6402  if(subAlloc.hAllocation->GetSize() != subAlloc.size)
    6403  {
    6404  return false;
    6405  }
    6406 
    6407  // Margin required between allocations - previous allocation must be free.
    6408  if(VMA_DEBUG_MARGIN > 0 && !prevFree)
    6409  {
    6410  return false;
    6411  }
    6412  }
    6413 
    6414  calculatedOffset += subAlloc.size;
    6415  prevFree = currFree;
    6416  }
    6417 
    6418  // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
    6419  // match expected one.
    6420  if(m_FreeSuballocationsBySize.size() != freeSuballocationsToRegister)
    6421  {
    6422  return false;
    6423  }
    6424 
    6425  VkDeviceSize lastSize = 0;
    6426  for(size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
    6427  {
    6428  VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
    6429 
    6430  // Only free suballocations can be registered in m_FreeSuballocationsBySize.
    6431  if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE)
    6432  {
    6433  return false;
    6434  }
    6435  // They must be sorted by size ascending.
    6436  if(suballocItem->size < lastSize)
    6437  {
    6438  return false;
    6439  }
    6440 
    6441  lastSize = suballocItem->size;
    6442  }
    6443 
    6444  // Check if totals match calculacted values.
    6445  if(!ValidateFreeSuballocationList() ||
    6446  (calculatedOffset != GetSize()) ||
    6447  (calculatedSumFreeSize != m_SumFreeSize) ||
    6448  (calculatedFreeCount != m_FreeCount))
    6449  {
    6450  return false;
    6451  }
    6452 
    6453  return true;
    6454 }
    6455 
    6456 VkDeviceSize VmaBlockMetadata_Generic::GetUnusedRangeSizeMax() const
    6457 {
    6458  if(!m_FreeSuballocationsBySize.empty())
    6459  {
    6460  return m_FreeSuballocationsBySize.back()->size;
    6461  }
    6462  else
    6463  {
    6464  return 0;
    6465  }
    6466 }
    6467 
    6468 bool VmaBlockMetadata_Generic::IsEmpty() const
    6469 {
    6470  return (m_Suballocations.size() == 1) && (m_FreeCount == 1);
    6471 }
    6472 
    6473 void VmaBlockMetadata_Generic::CalcAllocationStatInfo(VmaStatInfo& outInfo) const
    6474 {
    6475  outInfo.blockCount = 1;
    6476 
    6477  const uint32_t rangeCount = (uint32_t)m_Suballocations.size();
    6478  outInfo.allocationCount = rangeCount - m_FreeCount;
    6479  outInfo.unusedRangeCount = m_FreeCount;
    6480 
    6481  outInfo.unusedBytes = m_SumFreeSize;
    6482  outInfo.usedBytes = GetSize() - outInfo.unusedBytes;
    6483 
    6484  outInfo.allocationSizeMin = UINT64_MAX;
    6485  outInfo.allocationSizeMax = 0;
    6486  outInfo.unusedRangeSizeMin = UINT64_MAX;
    6487  outInfo.unusedRangeSizeMax = 0;
    6488 
    6489  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6490  suballocItem != m_Suballocations.cend();
    6491  ++suballocItem)
    6492  {
    6493  const VmaSuballocation& suballoc = *suballocItem;
    6494  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    6495  {
    6496  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    6497  outInfo.allocationSizeMax = VMA_MAX(outInfo.allocationSizeMax, suballoc.size);
    6498  }
    6499  else
    6500  {
    6501  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, suballoc.size);
    6502  outInfo.unusedRangeSizeMax = VMA_MAX(outInfo.unusedRangeSizeMax, suballoc.size);
    6503  }
    6504  }
    6505 }
    6506 
    6507 void VmaBlockMetadata_Generic::AddPoolStats(VmaPoolStats& inoutStats) const
    6508 {
    6509  const uint32_t rangeCount = (uint32_t)m_Suballocations.size();
    6510 
    6511  inoutStats.size += GetSize();
    6512  inoutStats.unusedSize += m_SumFreeSize;
    6513  inoutStats.allocationCount += rangeCount - m_FreeCount;
    6514  inoutStats.unusedRangeCount += m_FreeCount;
    6515  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, GetUnusedRangeSizeMax());
    6516 }
    6517 
    6518 #if VMA_STATS_STRING_ENABLED
    6519 
    6520 void VmaBlockMetadata_Generic::PrintDetailedMap(class VmaJsonWriter& json) const
    6521 {
    6522  PrintDetailedMap_Begin(json,
    6523  m_SumFreeSize, // unusedBytes
    6524  m_Suballocations.size() - (size_t)m_FreeCount, // allocationCount
    6525  m_FreeCount); // unusedRangeCount
    6526 
    6527  size_t i = 0;
    6528  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6529  suballocItem != m_Suballocations.cend();
    6530  ++suballocItem, ++i)
    6531  {
    6532  if(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    6533  {
    6534  PrintDetailedMap_UnusedRange(json, suballocItem->offset, suballocItem->size);
    6535  }
    6536  else
    6537  {
    6538  PrintDetailedMap_Allocation(json, suballocItem->offset, suballocItem->hAllocation);
    6539  }
    6540  }
    6541 
    6542  PrintDetailedMap_End(json);
    6543 }
    6544 
    6545 #endif // #if VMA_STATS_STRING_ENABLED
    6546 
    6547 /*
    6548 How many suitable free suballocations to analyze before choosing best one.
    6549 - Set to 1 to use First-Fit algorithm - first suitable free suballocation will
    6550  be chosen.
    6551 - Set to UINT32_MAX to use Best-Fit/Worst-Fit algorithm - all suitable free
    6552  suballocations will be analized and best one will be chosen.
    6553 - Any other value is also acceptable.
    6554 */
    6555 //static const uint32_t MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK = 8;
    6556 
    6557 bool VmaBlockMetadata_Generic::CreateAllocationRequest(
    6558  uint32_t currentFrameIndex,
    6559  uint32_t frameInUseCount,
    6560  VkDeviceSize bufferImageGranularity,
    6561  VkDeviceSize allocSize,
    6562  VkDeviceSize allocAlignment,
    6563  bool upperAddress,
    6564  VmaSuballocationType allocType,
    6565  bool canMakeOtherLost,
    6566  VmaAllocationRequest* pAllocationRequest)
    6567 {
    6568  VMA_ASSERT(allocSize > 0);
    6569  VMA_ASSERT(!upperAddress);
    6570  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    6571  VMA_ASSERT(pAllocationRequest != VMA_NULL);
    6572  VMA_HEAVY_ASSERT(Validate());
    6573 
    6574  // There is not enough total free space in this block to fullfill the request: Early return.
    6575  if(canMakeOtherLost == false && m_SumFreeSize < allocSize + 2 * VMA_DEBUG_MARGIN)
    6576  {
    6577  return false;
    6578  }
    6579 
    6580  // New algorithm, efficiently searching freeSuballocationsBySize.
    6581  const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
    6582  if(freeSuballocCount > 0)
    6583  {
    6584  if(VMA_BEST_FIT)
    6585  {
    6586  // Find first free suballocation with size not less than allocSize + 2 * VMA_DEBUG_MARGIN.
    6587  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
    6588  m_FreeSuballocationsBySize.data(),
    6589  m_FreeSuballocationsBySize.data() + freeSuballocCount,
    6590  allocSize + 2 * VMA_DEBUG_MARGIN,
    6591  VmaSuballocationItemSizeLess());
    6592  size_t index = it - m_FreeSuballocationsBySize.data();
    6593  for(; index < freeSuballocCount; ++index)
    6594  {
    6595  if(CheckAllocation(
    6596  currentFrameIndex,
    6597  frameInUseCount,
    6598  bufferImageGranularity,
    6599  allocSize,
    6600  allocAlignment,
    6601  allocType,
    6602  m_FreeSuballocationsBySize[index],
    6603  false, // canMakeOtherLost
    6604  &pAllocationRequest->offset,
    6605  &pAllocationRequest->itemsToMakeLostCount,
    6606  &pAllocationRequest->sumFreeSize,
    6607  &pAllocationRequest->sumItemSize))
    6608  {
    6609  pAllocationRequest->item = m_FreeSuballocationsBySize[index];
    6610  return true;
    6611  }
    6612  }
    6613  }
    6614  else
    6615  {
    6616  // Search staring from biggest suballocations.
    6617  for(size_t index = freeSuballocCount; index--; )
    6618  {
    6619  if(CheckAllocation(
    6620  currentFrameIndex,
    6621  frameInUseCount,
    6622  bufferImageGranularity,
    6623  allocSize,
    6624  allocAlignment,
    6625  allocType,
    6626  m_FreeSuballocationsBySize[index],
    6627  false, // canMakeOtherLost
    6628  &pAllocationRequest->offset,
    6629  &pAllocationRequest->itemsToMakeLostCount,
    6630  &pAllocationRequest->sumFreeSize,
    6631  &pAllocationRequest->sumItemSize))
    6632  {
    6633  pAllocationRequest->item = m_FreeSuballocationsBySize[index];
    6634  return true;
    6635  }
    6636  }
    6637  }
    6638  }
    6639 
    6640  if(canMakeOtherLost)
    6641  {
    6642  // Brute-force algorithm. TODO: Come up with something better.
    6643 
    6644  pAllocationRequest->sumFreeSize = VK_WHOLE_SIZE;
    6645  pAllocationRequest->sumItemSize = VK_WHOLE_SIZE;
    6646 
    6647  VmaAllocationRequest tmpAllocRequest = {};
    6648  for(VmaSuballocationList::iterator suballocIt = m_Suballocations.begin();
    6649  suballocIt != m_Suballocations.end();
    6650  ++suballocIt)
    6651  {
    6652  if(suballocIt->type == VMA_SUBALLOCATION_TYPE_FREE ||
    6653  suballocIt->hAllocation->CanBecomeLost())
    6654  {
    6655  if(CheckAllocation(
    6656  currentFrameIndex,
    6657  frameInUseCount,
    6658  bufferImageGranularity,
    6659  allocSize,
    6660  allocAlignment,
    6661  allocType,
    6662  suballocIt,
    6663  canMakeOtherLost,
    6664  &tmpAllocRequest.offset,
    6665  &tmpAllocRequest.itemsToMakeLostCount,
    6666  &tmpAllocRequest.sumFreeSize,
    6667  &tmpAllocRequest.sumItemSize))
    6668  {
    6669  tmpAllocRequest.item = suballocIt;
    6670 
    6671  if(tmpAllocRequest.CalcCost() < pAllocationRequest->CalcCost())
    6672  {
    6673  *pAllocationRequest = tmpAllocRequest;
    6674  }
    6675  }
    6676  }
    6677  }
    6678 
    6679  if(pAllocationRequest->sumItemSize != VK_WHOLE_SIZE)
    6680  {
    6681  return true;
    6682  }
    6683  }
    6684 
    6685  return false;
    6686 }
    6687 
    6688 bool VmaBlockMetadata_Generic::MakeRequestedAllocationsLost(
    6689  uint32_t currentFrameIndex,
    6690  uint32_t frameInUseCount,
    6691  VmaAllocationRequest* pAllocationRequest)
    6692 {
    6693  while(pAllocationRequest->itemsToMakeLostCount > 0)
    6694  {
    6695  if(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE)
    6696  {
    6697  ++pAllocationRequest->item;
    6698  }
    6699  VMA_ASSERT(pAllocationRequest->item != m_Suballocations.end());
    6700  VMA_ASSERT(pAllocationRequest->item->hAllocation != VK_NULL_HANDLE);
    6701  VMA_ASSERT(pAllocationRequest->item->hAllocation->CanBecomeLost());
    6702  if(pAllocationRequest->item->hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    6703  {
    6704  pAllocationRequest->item = FreeSuballocation(pAllocationRequest->item);
    6705  --pAllocationRequest->itemsToMakeLostCount;
    6706  }
    6707  else
    6708  {
    6709  return false;
    6710  }
    6711  }
    6712 
    6713  VMA_HEAVY_ASSERT(Validate());
    6714  VMA_ASSERT(pAllocationRequest->item != m_Suballocations.end());
    6715  VMA_ASSERT(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE);
    6716 
    6717  return true;
    6718 }
    6719 
    6720 uint32_t VmaBlockMetadata_Generic::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    6721 {
    6722  uint32_t lostAllocationCount = 0;
    6723  for(VmaSuballocationList::iterator it = m_Suballocations.begin();
    6724  it != m_Suballocations.end();
    6725  ++it)
    6726  {
    6727  if(it->type != VMA_SUBALLOCATION_TYPE_FREE &&
    6728  it->hAllocation->CanBecomeLost() &&
    6729  it->hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    6730  {
    6731  it = FreeSuballocation(it);
    6732  ++lostAllocationCount;
    6733  }
    6734  }
    6735  return lostAllocationCount;
    6736 }
    6737 
    6738 VkResult VmaBlockMetadata_Generic::CheckCorruption(const void* pBlockData)
    6739 {
    6740  for(VmaSuballocationList::iterator it = m_Suballocations.begin();
    6741  it != m_Suballocations.end();
    6742  ++it)
    6743  {
    6744  if(it->type != VMA_SUBALLOCATION_TYPE_FREE)
    6745  {
    6746  if(!VmaValidateMagicValue(pBlockData, it->offset - VMA_DEBUG_MARGIN))
    6747  {
    6748  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    6749  return VK_ERROR_VALIDATION_FAILED_EXT;
    6750  }
    6751  if(!VmaValidateMagicValue(pBlockData, it->offset + it->size))
    6752  {
    6753  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    6754  return VK_ERROR_VALIDATION_FAILED_EXT;
    6755  }
    6756  }
    6757  }
    6758 
    6759  return VK_SUCCESS;
    6760 }
    6761 
    6762 void VmaBlockMetadata_Generic::Alloc(
    6763  const VmaAllocationRequest& request,
    6764  VmaSuballocationType type,
    6765  VkDeviceSize allocSize,
    6766  bool upperAddress,
    6767  VmaAllocation hAllocation)
    6768 {
    6769  VMA_ASSERT(!upperAddress);
    6770  VMA_ASSERT(request.item != m_Suballocations.end());
    6771  VmaSuballocation& suballoc = *request.item;
    6772  // Given suballocation is a free block.
    6773  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    6774  // Given offset is inside this suballocation.
    6775  VMA_ASSERT(request.offset >= suballoc.offset);
    6776  const VkDeviceSize paddingBegin = request.offset - suballoc.offset;
    6777  VMA_ASSERT(suballoc.size >= paddingBegin + allocSize);
    6778  const VkDeviceSize paddingEnd = suballoc.size - paddingBegin - allocSize;
    6779 
    6780  // Unregister this free suballocation from m_FreeSuballocationsBySize and update
    6781  // it to become used.
    6782  UnregisterFreeSuballocation(request.item);
    6783 
    6784  suballoc.offset = request.offset;
    6785  suballoc.size = allocSize;
    6786  suballoc.type = type;
    6787  suballoc.hAllocation = hAllocation;
    6788 
    6789  // If there are any free bytes remaining at the end, insert new free suballocation after current one.
    6790  if(paddingEnd)
    6791  {
    6792  VmaSuballocation paddingSuballoc = {};
    6793  paddingSuballoc.offset = request.offset + allocSize;
    6794  paddingSuballoc.size = paddingEnd;
    6795  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6796  VmaSuballocationList::iterator next = request.item;
    6797  ++next;
    6798  const VmaSuballocationList::iterator paddingEndItem =
    6799  m_Suballocations.insert(next, paddingSuballoc);
    6800  RegisterFreeSuballocation(paddingEndItem);
    6801  }
    6802 
    6803  // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
    6804  if(paddingBegin)
    6805  {
    6806  VmaSuballocation paddingSuballoc = {};
    6807  paddingSuballoc.offset = request.offset - paddingBegin;
    6808  paddingSuballoc.size = paddingBegin;
    6809  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6810  const VmaSuballocationList::iterator paddingBeginItem =
    6811  m_Suballocations.insert(request.item, paddingSuballoc);
    6812  RegisterFreeSuballocation(paddingBeginItem);
    6813  }
    6814 
    6815  // Update totals.
    6816  m_FreeCount = m_FreeCount - 1;
    6817  if(paddingBegin > 0)
    6818  {
    6819  ++m_FreeCount;
    6820  }
    6821  if(paddingEnd > 0)
    6822  {
    6823  ++m_FreeCount;
    6824  }
    6825  m_SumFreeSize -= allocSize;
    6826 }
    6827 
    6828 void VmaBlockMetadata_Generic::Free(const VmaAllocation allocation)
    6829 {
    6830  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
    6831  suballocItem != m_Suballocations.end();
    6832  ++suballocItem)
    6833  {
    6834  VmaSuballocation& suballoc = *suballocItem;
    6835  if(suballoc.hAllocation == allocation)
    6836  {
    6837  FreeSuballocation(suballocItem);
    6838  VMA_HEAVY_ASSERT(Validate());
    6839  return;
    6840  }
    6841  }
    6842  VMA_ASSERT(0 && "Not found!");
    6843 }
    6844 
    6845 void VmaBlockMetadata_Generic::FreeAtOffset(VkDeviceSize offset)
    6846 {
    6847  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
    6848  suballocItem != m_Suballocations.end();
    6849  ++suballocItem)
    6850  {
    6851  VmaSuballocation& suballoc = *suballocItem;
    6852  if(suballoc.offset == offset)
    6853  {
    6854  FreeSuballocation(suballocItem);
    6855  return;
    6856  }
    6857  }
    6858  VMA_ASSERT(0 && "Not found!");
    6859 }
    6860 
    6861 bool VmaBlockMetadata_Generic::ValidateFreeSuballocationList() const
    6862 {
    6863  VkDeviceSize lastSize = 0;
    6864  for(size_t i = 0, count = m_FreeSuballocationsBySize.size(); i < count; ++i)
    6865  {
    6866  const VmaSuballocationList::iterator it = m_FreeSuballocationsBySize[i];
    6867 
    6868  if(it->type != VMA_SUBALLOCATION_TYPE_FREE)
    6869  {
    6870  VMA_ASSERT(0);
    6871  return false;
    6872  }
    6873  if(it->size < VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    6874  {
    6875  VMA_ASSERT(0);
    6876  return false;
    6877  }
    6878  if(it->size < lastSize)
    6879  {
    6880  VMA_ASSERT(0);
    6881  return false;
    6882  }
    6883 
    6884  lastSize = it->size;
    6885  }
    6886  return true;
    6887 }
    6888 
    6889 bool VmaBlockMetadata_Generic::CheckAllocation(
    6890  uint32_t currentFrameIndex,
    6891  uint32_t frameInUseCount,
    6892  VkDeviceSize bufferImageGranularity,
    6893  VkDeviceSize allocSize,
    6894  VkDeviceSize allocAlignment,
    6895  VmaSuballocationType allocType,
    6896  VmaSuballocationList::const_iterator suballocItem,
    6897  bool canMakeOtherLost,
    6898  VkDeviceSize* pOffset,
    6899  size_t* itemsToMakeLostCount,
    6900  VkDeviceSize* pSumFreeSize,
    6901  VkDeviceSize* pSumItemSize) const
    6902 {
    6903  VMA_ASSERT(allocSize > 0);
    6904  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    6905  VMA_ASSERT(suballocItem != m_Suballocations.cend());
    6906  VMA_ASSERT(pOffset != VMA_NULL);
    6907 
    6908  *itemsToMakeLostCount = 0;
    6909  *pSumFreeSize = 0;
    6910  *pSumItemSize = 0;
    6911 
    6912  if(canMakeOtherLost)
    6913  {
    6914  if(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    6915  {
    6916  *pSumFreeSize = suballocItem->size;
    6917  }
    6918  else
    6919  {
    6920  if(suballocItem->hAllocation->CanBecomeLost() &&
    6921  suballocItem->hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    6922  {
    6923  ++*itemsToMakeLostCount;
    6924  *pSumItemSize = suballocItem->size;
    6925  }
    6926  else
    6927  {
    6928  return false;
    6929  }
    6930  }
    6931 
    6932  // Remaining size is too small for this request: Early return.
    6933  if(GetSize() - suballocItem->offset < allocSize)
    6934  {
    6935  return false;
    6936  }
    6937 
    6938  // Start from offset equal to beginning of this suballocation.
    6939  *pOffset = suballocItem->offset;
    6940 
    6941  // Apply VMA_DEBUG_MARGIN at the beginning.
    6942  if(VMA_DEBUG_MARGIN > 0)
    6943  {
    6944  *pOffset += VMA_DEBUG_MARGIN;
    6945  }
    6946 
    6947  // Apply alignment.
    6948  *pOffset = VmaAlignUp(*pOffset, allocAlignment);
    6949 
    6950  // Check previous suballocations for BufferImageGranularity conflicts.
    6951  // Make bigger alignment if necessary.
    6952  if(bufferImageGranularity > 1)
    6953  {
    6954  bool bufferImageGranularityConflict = false;
    6955  VmaSuballocationList::const_iterator prevSuballocItem = suballocItem;
    6956  while(prevSuballocItem != m_Suballocations.cbegin())
    6957  {
    6958  --prevSuballocItem;
    6959  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
    6960  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
    6961  {
    6962  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    6963  {
    6964  bufferImageGranularityConflict = true;
    6965  break;
    6966  }
    6967  }
    6968  else
    6969  // Already on previous page.
    6970  break;
    6971  }
    6972  if(bufferImageGranularityConflict)
    6973  {
    6974  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
    6975  }
    6976  }
    6977 
    6978  // Now that we have final *pOffset, check if we are past suballocItem.
    6979  // If yes, return false - this function should be called for another suballocItem as starting point.
    6980  if(*pOffset >= suballocItem->offset + suballocItem->size)
    6981  {
    6982  return false;
    6983  }
    6984 
    6985  // Calculate padding at the beginning based on current offset.
    6986  const VkDeviceSize paddingBegin = *pOffset - suballocItem->offset;
    6987 
    6988  // Calculate required margin at the end.
    6989  const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN;
    6990 
    6991  const VkDeviceSize totalSize = paddingBegin + allocSize + requiredEndMargin;
    6992  // Another early return check.
    6993  if(suballocItem->offset + totalSize > GetSize())
    6994  {
    6995  return false;
    6996  }
    6997 
    6998  // Advance lastSuballocItem until desired size is reached.
    6999  // Update itemsToMakeLostCount.
    7000  VmaSuballocationList::const_iterator lastSuballocItem = suballocItem;
    7001  if(totalSize > suballocItem->size)
    7002  {
    7003  VkDeviceSize remainingSize = totalSize - suballocItem->size;
    7004  while(remainingSize > 0)
    7005  {
    7006  ++lastSuballocItem;
    7007  if(lastSuballocItem == m_Suballocations.cend())
    7008  {
    7009  return false;
    7010  }
    7011  if(lastSuballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    7012  {
    7013  *pSumFreeSize += lastSuballocItem->size;
    7014  }
    7015  else
    7016  {
    7017  VMA_ASSERT(lastSuballocItem->hAllocation != VK_NULL_HANDLE);
    7018  if(lastSuballocItem->hAllocation->CanBecomeLost() &&
    7019  lastSuballocItem->hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    7020  {
    7021  ++*itemsToMakeLostCount;
    7022  *pSumItemSize += lastSuballocItem->size;
    7023  }
    7024  else
    7025  {
    7026  return false;
    7027  }
    7028  }
    7029  remainingSize = (lastSuballocItem->size < remainingSize) ?
    7030  remainingSize - lastSuballocItem->size : 0;
    7031  }
    7032  }
    7033 
    7034  // Check next suballocations for BufferImageGranularity conflicts.
    7035  // If conflict exists, we must mark more allocations lost or fail.
    7036  if(bufferImageGranularity > 1)
    7037  {
    7038  VmaSuballocationList::const_iterator nextSuballocItem = lastSuballocItem;
    7039  ++nextSuballocItem;
    7040  while(nextSuballocItem != m_Suballocations.cend())
    7041  {
    7042  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
    7043  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    7044  {
    7045  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    7046  {
    7047  VMA_ASSERT(nextSuballoc.hAllocation != VK_NULL_HANDLE);
    7048  if(nextSuballoc.hAllocation->CanBecomeLost() &&
    7049  nextSuballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    7050  {
    7051  ++*itemsToMakeLostCount;
    7052  }
    7053  else
    7054  {
    7055  return false;
    7056  }
    7057  }
    7058  }
    7059  else
    7060  {
    7061  // Already on next page.
    7062  break;
    7063  }
    7064  ++nextSuballocItem;
    7065  }
    7066  }
    7067  }
    7068  else
    7069  {
    7070  const VmaSuballocation& suballoc = *suballocItem;
    7071  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7072 
    7073  *pSumFreeSize = suballoc.size;
    7074 
    7075  // Size of this suballocation is too small for this request: Early return.
    7076  if(suballoc.size < allocSize)
    7077  {
    7078  return false;
    7079  }
    7080 
    7081  // Start from offset equal to beginning of this suballocation.
    7082  *pOffset = suballoc.offset;
    7083 
    7084  // Apply VMA_DEBUG_MARGIN at the beginning.
    7085  if(VMA_DEBUG_MARGIN > 0)
    7086  {
    7087  *pOffset += VMA_DEBUG_MARGIN;
    7088  }
    7089 
    7090  // Apply alignment.
    7091  *pOffset = VmaAlignUp(*pOffset, allocAlignment);
    7092 
    7093  // Check previous suballocations for BufferImageGranularity conflicts.
    7094  // Make bigger alignment if necessary.
    7095  if(bufferImageGranularity > 1)
    7096  {
    7097  bool bufferImageGranularityConflict = false;
    7098  VmaSuballocationList::const_iterator prevSuballocItem = suballocItem;
    7099  while(prevSuballocItem != m_Suballocations.cbegin())
    7100  {
    7101  --prevSuballocItem;
    7102  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
    7103  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
    7104  {
    7105  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    7106  {
    7107  bufferImageGranularityConflict = true;
    7108  break;
    7109  }
    7110  }
    7111  else
    7112  // Already on previous page.
    7113  break;
    7114  }
    7115  if(bufferImageGranularityConflict)
    7116  {
    7117  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
    7118  }
    7119  }
    7120 
    7121  // Calculate padding at the beginning based on current offset.
    7122  const VkDeviceSize paddingBegin = *pOffset - suballoc.offset;
    7123 
    7124  // Calculate required margin at the end.
    7125  const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN;
    7126 
    7127  // Fail if requested size plus margin before and after is bigger than size of this suballocation.
    7128  if(paddingBegin + allocSize + requiredEndMargin > suballoc.size)
    7129  {
    7130  return false;
    7131  }
    7132 
    7133  // Check next suballocations for BufferImageGranularity conflicts.
    7134  // If conflict exists, allocation cannot be made here.
    7135  if(bufferImageGranularity > 1)
    7136  {
    7137  VmaSuballocationList::const_iterator nextSuballocItem = suballocItem;
    7138  ++nextSuballocItem;
    7139  while(nextSuballocItem != m_Suballocations.cend())
    7140  {
    7141  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
    7142  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    7143  {
    7144  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    7145  {
    7146  return false;
    7147  }
    7148  }
    7149  else
    7150  {
    7151  // Already on next page.
    7152  break;
    7153  }
    7154  ++nextSuballocItem;
    7155  }
    7156  }
    7157  }
    7158 
    7159  // All tests passed: Success. pOffset is already filled.
    7160  return true;
    7161 }
    7162 
    7163 void VmaBlockMetadata_Generic::MergeFreeWithNext(VmaSuballocationList::iterator item)
    7164 {
    7165  VMA_ASSERT(item != m_Suballocations.end());
    7166  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7167 
    7168  VmaSuballocationList::iterator nextItem = item;
    7169  ++nextItem;
    7170  VMA_ASSERT(nextItem != m_Suballocations.end());
    7171  VMA_ASSERT(nextItem->type == VMA_SUBALLOCATION_TYPE_FREE);
    7172 
    7173  item->size += nextItem->size;
    7174  --m_FreeCount;
    7175  m_Suballocations.erase(nextItem);
    7176 }
    7177 
    7178 VmaSuballocationList::iterator VmaBlockMetadata_Generic::FreeSuballocation(VmaSuballocationList::iterator suballocItem)
    7179 {
    7180  // Change this suballocation to be marked as free.
    7181  VmaSuballocation& suballoc = *suballocItem;
    7182  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    7183  suballoc.hAllocation = VK_NULL_HANDLE;
    7184 
    7185  // Update totals.
    7186  ++m_FreeCount;
    7187  m_SumFreeSize += suballoc.size;
    7188 
    7189  // Merge with previous and/or next suballocation if it's also free.
    7190  bool mergeWithNext = false;
    7191  bool mergeWithPrev = false;
    7192 
    7193  VmaSuballocationList::iterator nextItem = suballocItem;
    7194  ++nextItem;
    7195  if((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE))
    7196  {
    7197  mergeWithNext = true;
    7198  }
    7199 
    7200  VmaSuballocationList::iterator prevItem = suballocItem;
    7201  if(suballocItem != m_Suballocations.begin())
    7202  {
    7203  --prevItem;
    7204  if(prevItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    7205  {
    7206  mergeWithPrev = true;
    7207  }
    7208  }
    7209 
    7210  if(mergeWithNext)
    7211  {
    7212  UnregisterFreeSuballocation(nextItem);
    7213  MergeFreeWithNext(suballocItem);
    7214  }
    7215 
    7216  if(mergeWithPrev)
    7217  {
    7218  UnregisterFreeSuballocation(prevItem);
    7219  MergeFreeWithNext(prevItem);
    7220  RegisterFreeSuballocation(prevItem);
    7221  return prevItem;
    7222  }
    7223  else
    7224  {
    7225  RegisterFreeSuballocation(suballocItem);
    7226  return suballocItem;
    7227  }
    7228 }
    7229 
    7230 void VmaBlockMetadata_Generic::RegisterFreeSuballocation(VmaSuballocationList::iterator item)
    7231 {
    7232  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7233  VMA_ASSERT(item->size > 0);
    7234 
    7235  // You may want to enable this validation at the beginning or at the end of
    7236  // this function, depending on what do you want to check.
    7237  VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7238 
    7239  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    7240  {
    7241  if(m_FreeSuballocationsBySize.empty())
    7242  {
    7243  m_FreeSuballocationsBySize.push_back(item);
    7244  }
    7245  else
    7246  {
    7247  VmaVectorInsertSorted<VmaSuballocationItemSizeLess>(m_FreeSuballocationsBySize, item);
    7248  }
    7249  }
    7250 
    7251  //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7252 }
    7253 
    7254 
    7255 void VmaBlockMetadata_Generic::UnregisterFreeSuballocation(VmaSuballocationList::iterator item)
    7256 {
    7257  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7258  VMA_ASSERT(item->size > 0);
    7259 
    7260  // You may want to enable this validation at the beginning or at the end of
    7261  // this function, depending on what do you want to check.
    7262  VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7263 
    7264  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    7265  {
    7266  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
    7267  m_FreeSuballocationsBySize.data(),
    7268  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
    7269  item,
    7270  VmaSuballocationItemSizeLess());
    7271  for(size_t index = it - m_FreeSuballocationsBySize.data();
    7272  index < m_FreeSuballocationsBySize.size();
    7273  ++index)
    7274  {
    7275  if(m_FreeSuballocationsBySize[index] == item)
    7276  {
    7277  VmaVectorRemove(m_FreeSuballocationsBySize, index);
    7278  return;
    7279  }
    7280  VMA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
    7281  }
    7282  VMA_ASSERT(0 && "Not found.");
    7283  }
    7284 
    7285  //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7286 }
    7287 
    7289 // class VmaBlockMetadata_Linear
    7290 
    7291 VmaBlockMetadata_Linear::VmaBlockMetadata_Linear(VmaAllocator hAllocator) :
    7292  m_SumFreeSize(0),
    7293  m_Suballocations0(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    7294  m_Suballocations1(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    7295  m_1stVectorIndex(0),
    7296  m_2ndVectorMode(SECOND_VECTOR_EMPTY),
    7297  m_1stNullItemsBeginCount(0),
    7298  m_1stNullItemsMiddleCount(0),
    7299  m_2ndNullItemsCount(0)
    7300 {
    7301 }
    7302 
    7303 VmaBlockMetadata_Linear::~VmaBlockMetadata_Linear()
    7304 {
    7305 }
    7306 
    7307 void VmaBlockMetadata_Linear::Init(VkDeviceSize size)
    7308 {
    7309  VmaBlockMetadata::Init(size);
    7310  m_SumFreeSize = size;
    7311 }
    7312 
    7313 bool VmaBlockMetadata_Linear::Validate() const
    7314 {
    7315  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7316  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7317 
    7318  if(suballocations2nd.empty() != (m_2ndVectorMode == SECOND_VECTOR_EMPTY))
    7319  {
    7320  return false;
    7321  }
    7322  if(suballocations1st.empty() && !suballocations2nd.empty() &&
    7323  m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7324  {
    7325  return false;
    7326  }
    7327  if(!suballocations1st.empty())
    7328  {
    7329  // Null item at the beginning should be accounted into m_1stNullItemsBeginCount.
    7330  if(suballocations1st[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    7331  {
    7332  return false;
    7333  }
    7334  // Null item at the end should be just pop_back().
    7335  if(suballocations1st.back().hAllocation == VK_NULL_HANDLE)
    7336  {
    7337  return false;
    7338  }
    7339  }
    7340  if(!suballocations2nd.empty())
    7341  {
    7342  // Null item at the end should be just pop_back().
    7343  if(suballocations2nd.back().hAllocation == VK_NULL_HANDLE)
    7344  {
    7345  return false;
    7346  }
    7347  }
    7348 
    7349  if(m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount > suballocations1st.size())
    7350  {
    7351  return false;
    7352  }
    7353  if(m_2ndNullItemsCount > suballocations2nd.size())
    7354  {
    7355  return false;
    7356  }
    7357 
    7358  VkDeviceSize sumUsedSize = 0;
    7359  const size_t suballoc1stCount = suballocations1st.size();
    7360  VkDeviceSize offset = VMA_DEBUG_MARGIN;
    7361 
    7362  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7363  {
    7364  const size_t suballoc2ndCount = suballocations2nd.size();
    7365  size_t nullItem2ndCount = 0;
    7366  for(size_t i = 0; i < suballoc2ndCount; ++i)
    7367  {
    7368  const VmaSuballocation& suballoc = suballocations2nd[i];
    7369  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7370 
    7371  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7372  {
    7373  return false;
    7374  }
    7375  if(suballoc.offset < offset)
    7376  {
    7377  return false;
    7378  }
    7379 
    7380  if(!currFree)
    7381  {
    7382  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7383  {
    7384  return false;
    7385  }
    7386  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7387  {
    7388  return false;
    7389  }
    7390  sumUsedSize += suballoc.size;
    7391  }
    7392  else
    7393  {
    7394  ++nullItem2ndCount;
    7395  }
    7396 
    7397  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7398  }
    7399 
    7400  if(nullItem2ndCount != m_2ndNullItemsCount)
    7401  {
    7402  return false;
    7403  }
    7404  }
    7405 
    7406  for(size_t i = 0; i < m_1stNullItemsBeginCount; ++i)
    7407  {
    7408  const VmaSuballocation& suballoc = suballocations1st[i];
    7409  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE ||
    7410  suballoc.hAllocation != VK_NULL_HANDLE)
    7411  {
    7412  return false;
    7413  }
    7414  }
    7415 
    7416  size_t nullItem1stCount = m_1stNullItemsBeginCount;
    7417 
    7418  for(size_t i = m_1stNullItemsBeginCount; i < suballoc1stCount; ++i)
    7419  {
    7420  const VmaSuballocation& suballoc = suballocations1st[i];
    7421  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7422 
    7423  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7424  {
    7425  return false;
    7426  }
    7427  if(suballoc.offset < offset)
    7428  {
    7429  return false;
    7430  }
    7431  if(i < m_1stNullItemsBeginCount && !currFree)
    7432  {
    7433  return false;
    7434  }
    7435 
    7436  if(!currFree)
    7437  {
    7438  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7439  {
    7440  return false;
    7441  }
    7442  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7443  {
    7444  return false;
    7445  }
    7446  sumUsedSize += suballoc.size;
    7447  }
    7448  else
    7449  {
    7450  ++nullItem1stCount;
    7451  }
    7452 
    7453  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7454  }
    7455  if(nullItem1stCount != m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount)
    7456  {
    7457  return false;
    7458  }
    7459 
    7460  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7461  {
    7462  const size_t suballoc2ndCount = suballocations2nd.size();
    7463  size_t nullItem2ndCount = 0;
    7464  for(size_t i = suballoc2ndCount; i--; )
    7465  {
    7466  const VmaSuballocation& suballoc = suballocations2nd[i];
    7467  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7468 
    7469  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7470  {
    7471  return false;
    7472  }
    7473  if(suballoc.offset < offset)
    7474  {
    7475  return false;
    7476  }
    7477 
    7478  if(!currFree)
    7479  {
    7480  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7481  {
    7482  return false;
    7483  }
    7484  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7485  {
    7486  return false;
    7487  }
    7488  sumUsedSize += suballoc.size;
    7489  }
    7490  else
    7491  {
    7492  ++nullItem2ndCount;
    7493  }
    7494 
    7495  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7496  }
    7497 
    7498  if(nullItem2ndCount != m_2ndNullItemsCount)
    7499  {
    7500  return false;
    7501  }
    7502  }
    7503 
    7504  if(offset > GetSize())
    7505  {
    7506  return false;
    7507  }
    7508  if(m_SumFreeSize != GetSize() - sumUsedSize)
    7509  {
    7510  return false;
    7511  }
    7512 
    7513  return true;
    7514 }
    7515 
    7516 size_t VmaBlockMetadata_Linear::GetAllocationCount() const
    7517 {
    7518  return AccessSuballocations1st().size() - (m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount) +
    7519  AccessSuballocations2nd().size() - m_2ndNullItemsCount;
    7520 }
    7521 
    7522 VkDeviceSize VmaBlockMetadata_Linear::GetUnusedRangeSizeMax() const
    7523 {
    7524  const VkDeviceSize size = GetSize();
    7525 
    7526  /*
    7527  We don't consider gaps inside allocation vectors with freed allocations because
    7528  they are not suitable for reuse in linear allocator. We consider only space that
    7529  is available for new allocations.
    7530  */
    7531  if(IsEmpty())
    7532  {
    7533  return size;
    7534  }
    7535 
    7536  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7537 
    7538  switch(m_2ndVectorMode)
    7539  {
    7540  case SECOND_VECTOR_EMPTY:
    7541  /*
    7542  Available space is after end of 1st, as well as before beginning of 1st (which
    7543  whould make it a ring buffer).
    7544  */
    7545  {
    7546  const size_t suballocations1stCount = suballocations1st.size();
    7547  VMA_ASSERT(suballocations1stCount > m_1stNullItemsBeginCount);
    7548  const VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
    7549  const VmaSuballocation& lastSuballoc = suballocations1st[suballocations1stCount - 1];
    7550  return VMA_MAX(
    7551  firstSuballoc.offset,
    7552  size - (lastSuballoc.offset + lastSuballoc.size));
    7553  }
    7554  break;
    7555 
    7556  case SECOND_VECTOR_RING_BUFFER:
    7557  /*
    7558  Available space is only between end of 2nd and beginning of 1st.
    7559  */
    7560  {
    7561  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7562  const VmaSuballocation& lastSuballoc2nd = suballocations2nd.back();
    7563  const VmaSuballocation& firstSuballoc1st = suballocations1st[m_1stNullItemsBeginCount];
    7564  return firstSuballoc1st.offset - (lastSuballoc2nd.offset + lastSuballoc2nd.size);
    7565  }
    7566  break;
    7567 
    7568  case SECOND_VECTOR_DOUBLE_STACK:
    7569  /*
    7570  Available space is only between end of 1st and top of 2nd.
    7571  */
    7572  {
    7573  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7574  const VmaSuballocation& topSuballoc2nd = suballocations2nd.back();
    7575  const VmaSuballocation& lastSuballoc1st = suballocations1st.back();
    7576  return topSuballoc2nd.offset - (lastSuballoc1st.offset + lastSuballoc1st.size);
    7577  }
    7578  break;
    7579 
    7580  default:
    7581  VMA_ASSERT(0);
    7582  return 0;
    7583  }
    7584 }
    7585 
    7586 void VmaBlockMetadata_Linear::CalcAllocationStatInfo(VmaStatInfo& outInfo) const
    7587 {
    7588  const VkDeviceSize size = GetSize();
    7589  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7590  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7591  const size_t suballoc1stCount = suballocations1st.size();
    7592  const size_t suballoc2ndCount = suballocations2nd.size();
    7593 
    7594  outInfo.blockCount = 1;
    7595  outInfo.allocationCount = (uint32_t)GetAllocationCount();
    7596  outInfo.unusedRangeCount = 0;
    7597  outInfo.usedBytes = 0;
    7598  outInfo.allocationSizeMin = UINT64_MAX;
    7599  outInfo.allocationSizeMax = 0;
    7600  outInfo.unusedRangeSizeMin = UINT64_MAX;
    7601  outInfo.unusedRangeSizeMax = 0;
    7602 
    7603  VkDeviceSize lastOffset = 0;
    7604 
    7605  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7606  {
    7607  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7608  size_t nextAlloc2ndIndex = 0;
    7609  while(lastOffset < freeSpace2ndTo1stEnd)
    7610  {
    7611  // Find next non-null allocation or move nextAllocIndex to the end.
    7612  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7613  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7614  {
    7615  ++nextAlloc2ndIndex;
    7616  }
    7617 
    7618  // Found non-null allocation.
    7619  if(nextAlloc2ndIndex < suballoc2ndCount)
    7620  {
    7621  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7622 
    7623  // 1. Process free space before this allocation.
    7624  if(lastOffset < suballoc.offset)
    7625  {
    7626  // There is free space from lastOffset to suballoc.offset.
    7627  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7628  ++outInfo.unusedRangeCount;
    7629  outInfo.unusedBytes += unusedRangeSize;
    7630  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7631  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7632  }
    7633 
    7634  // 2. Process this allocation.
    7635  // There is allocation with suballoc.offset, suballoc.size.
    7636  outInfo.usedBytes += suballoc.size;
    7637  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7638  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7639 
    7640  // 3. Prepare for next iteration.
    7641  lastOffset = suballoc.offset + suballoc.size;
    7642  ++nextAlloc2ndIndex;
    7643  }
    7644  // We are at the end.
    7645  else
    7646  {
    7647  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    7648  if(lastOffset < freeSpace2ndTo1stEnd)
    7649  {
    7650  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    7651  ++outInfo.unusedRangeCount;
    7652  outInfo.unusedBytes += unusedRangeSize;
    7653  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7654  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7655  }
    7656 
    7657  // End of loop.
    7658  lastOffset = freeSpace2ndTo1stEnd;
    7659  }
    7660  }
    7661  }
    7662 
    7663  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    7664  const VkDeviceSize freeSpace1stTo2ndEnd =
    7665  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    7666  while(lastOffset < freeSpace1stTo2ndEnd)
    7667  {
    7668  // Find next non-null allocation or move nextAllocIndex to the end.
    7669  while(nextAlloc1stIndex < suballoc1stCount &&
    7670  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    7671  {
    7672  ++nextAlloc1stIndex;
    7673  }
    7674 
    7675  // Found non-null allocation.
    7676  if(nextAlloc1stIndex < suballoc1stCount)
    7677  {
    7678  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    7679 
    7680  // 1. Process free space before this allocation.
    7681  if(lastOffset < suballoc.offset)
    7682  {
    7683  // There is free space from lastOffset to suballoc.offset.
    7684  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7685  ++outInfo.unusedRangeCount;
    7686  outInfo.unusedBytes += unusedRangeSize;
    7687  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7688  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7689  }
    7690 
    7691  // 2. Process this allocation.
    7692  // There is allocation with suballoc.offset, suballoc.size.
    7693  outInfo.usedBytes += suballoc.size;
    7694  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7695  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7696 
    7697  // 3. Prepare for next iteration.
    7698  lastOffset = suballoc.offset + suballoc.size;
    7699  ++nextAlloc1stIndex;
    7700  }
    7701  // We are at the end.
    7702  else
    7703  {
    7704  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    7705  if(lastOffset < freeSpace1stTo2ndEnd)
    7706  {
    7707  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    7708  ++outInfo.unusedRangeCount;
    7709  outInfo.unusedBytes += unusedRangeSize;
    7710  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7711  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7712  }
    7713 
    7714  // End of loop.
    7715  lastOffset = freeSpace1stTo2ndEnd;
    7716  }
    7717  }
    7718 
    7719  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7720  {
    7721  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    7722  while(lastOffset < size)
    7723  {
    7724  // Find next non-null allocation or move nextAllocIndex to the end.
    7725  while(nextAlloc2ndIndex != SIZE_MAX &&
    7726  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7727  {
    7728  --nextAlloc2ndIndex;
    7729  }
    7730 
    7731  // Found non-null allocation.
    7732  if(nextAlloc2ndIndex != SIZE_MAX)
    7733  {
    7734  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7735 
    7736  // 1. Process free space before this allocation.
    7737  if(lastOffset < suballoc.offset)
    7738  {
    7739  // There is free space from lastOffset to suballoc.offset.
    7740  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7741  ++outInfo.unusedRangeCount;
    7742  outInfo.unusedBytes += unusedRangeSize;
    7743  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7744  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7745  }
    7746 
    7747  // 2. Process this allocation.
    7748  // There is allocation with suballoc.offset, suballoc.size.
    7749  outInfo.usedBytes += suballoc.size;
    7750  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7751  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7752 
    7753  // 3. Prepare for next iteration.
    7754  lastOffset = suballoc.offset + suballoc.size;
    7755  --nextAlloc2ndIndex;
    7756  }
    7757  // We are at the end.
    7758  else
    7759  {
    7760  // There is free space from lastOffset to size.
    7761  if(lastOffset < size)
    7762  {
    7763  const VkDeviceSize unusedRangeSize = size - lastOffset;
    7764  ++outInfo.unusedRangeCount;
    7765  outInfo.unusedBytes += unusedRangeSize;
    7766  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7767  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7768  }
    7769 
    7770  // End of loop.
    7771  lastOffset = size;
    7772  }
    7773  }
    7774  }
    7775 
    7776  outInfo.unusedBytes = size - outInfo.usedBytes;
    7777 }
    7778 
    7779 void VmaBlockMetadata_Linear::AddPoolStats(VmaPoolStats& inoutStats) const
    7780 {
    7781  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7782  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7783  const VkDeviceSize size = GetSize();
    7784  const size_t suballoc1stCount = suballocations1st.size();
    7785  const size_t suballoc2ndCount = suballocations2nd.size();
    7786 
    7787  inoutStats.size += size;
    7788 
    7789  VkDeviceSize lastOffset = 0;
    7790 
    7791  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7792  {
    7793  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7794  size_t nextAlloc2ndIndex = m_1stNullItemsBeginCount;
    7795  while(lastOffset < freeSpace2ndTo1stEnd)
    7796  {
    7797  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7798  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7799  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7800  {
    7801  ++nextAlloc2ndIndex;
    7802  }
    7803 
    7804  // Found non-null allocation.
    7805  if(nextAlloc2ndIndex < suballoc2ndCount)
    7806  {
    7807  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7808 
    7809  // 1. Process free space before this allocation.
    7810  if(lastOffset < suballoc.offset)
    7811  {
    7812  // There is free space from lastOffset to suballoc.offset.
    7813  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7814  inoutStats.unusedSize += unusedRangeSize;
    7815  ++inoutStats.unusedRangeCount;
    7816  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7817  }
    7818 
    7819  // 2. Process this allocation.
    7820  // There is allocation with suballoc.offset, suballoc.size.
    7821  ++inoutStats.allocationCount;
    7822 
    7823  // 3. Prepare for next iteration.
    7824  lastOffset = suballoc.offset + suballoc.size;
    7825  ++nextAlloc2ndIndex;
    7826  }
    7827  // We are at the end.
    7828  else
    7829  {
    7830  if(lastOffset < freeSpace2ndTo1stEnd)
    7831  {
    7832  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    7833  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    7834  inoutStats.unusedSize += unusedRangeSize;
    7835  ++inoutStats.unusedRangeCount;
    7836  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7837  }
    7838 
    7839  // End of loop.
    7840  lastOffset = freeSpace2ndTo1stEnd;
    7841  }
    7842  }
    7843  }
    7844 
    7845  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    7846  const VkDeviceSize freeSpace1stTo2ndEnd =
    7847  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    7848  while(lastOffset < freeSpace1stTo2ndEnd)
    7849  {
    7850  // Find next non-null allocation or move nextAllocIndex to the end.
    7851  while(nextAlloc1stIndex < suballoc1stCount &&
    7852  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    7853  {
    7854  ++nextAlloc1stIndex;
    7855  }
    7856 
    7857  // Found non-null allocation.
    7858  if(nextAlloc1stIndex < suballoc1stCount)
    7859  {
    7860  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    7861 
    7862  // 1. Process free space before this allocation.
    7863  if(lastOffset < suballoc.offset)
    7864  {
    7865  // There is free space from lastOffset to suballoc.offset.
    7866  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7867  inoutStats.unusedSize += unusedRangeSize;
    7868  ++inoutStats.unusedRangeCount;
    7869  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7870  }
    7871 
    7872  // 2. Process this allocation.
    7873  // There is allocation with suballoc.offset, suballoc.size.
    7874  ++inoutStats.allocationCount;
    7875 
    7876  // 3. Prepare for next iteration.
    7877  lastOffset = suballoc.offset + suballoc.size;
    7878  ++nextAlloc1stIndex;
    7879  }
    7880  // We are at the end.
    7881  else
    7882  {
    7883  if(lastOffset < freeSpace1stTo2ndEnd)
    7884  {
    7885  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    7886  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    7887  inoutStats.unusedSize += unusedRangeSize;
    7888  ++inoutStats.unusedRangeCount;
    7889  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7890  }
    7891 
    7892  // End of loop.
    7893  lastOffset = freeSpace1stTo2ndEnd;
    7894  }
    7895  }
    7896 
    7897  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7898  {
    7899  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    7900  while(lastOffset < size)
    7901  {
    7902  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7903  while(nextAlloc2ndIndex != SIZE_MAX &&
    7904  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7905  {
    7906  --nextAlloc2ndIndex;
    7907  }
    7908 
    7909  // Found non-null allocation.
    7910  if(nextAlloc2ndIndex != SIZE_MAX)
    7911  {
    7912  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7913 
    7914  // 1. Process free space before this allocation.
    7915  if(lastOffset < suballoc.offset)
    7916  {
    7917  // There is free space from lastOffset to suballoc.offset.
    7918  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7919  inoutStats.unusedSize += unusedRangeSize;
    7920  ++inoutStats.unusedRangeCount;
    7921  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7922  }
    7923 
    7924  // 2. Process this allocation.
    7925  // There is allocation with suballoc.offset, suballoc.size.
    7926  ++inoutStats.allocationCount;
    7927 
    7928  // 3. Prepare for next iteration.
    7929  lastOffset = suballoc.offset + suballoc.size;
    7930  --nextAlloc2ndIndex;
    7931  }
    7932  // We are at the end.
    7933  else
    7934  {
    7935  if(lastOffset < size)
    7936  {
    7937  // There is free space from lastOffset to size.
    7938  const VkDeviceSize unusedRangeSize = size - lastOffset;
    7939  inoutStats.unusedSize += unusedRangeSize;
    7940  ++inoutStats.unusedRangeCount;
    7941  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7942  }
    7943 
    7944  // End of loop.
    7945  lastOffset = size;
    7946  }
    7947  }
    7948  }
    7949 }
    7950 
    7951 #if VMA_STATS_STRING_ENABLED
    7952 void VmaBlockMetadata_Linear::PrintDetailedMap(class VmaJsonWriter& json) const
    7953 {
    7954  const VkDeviceSize size = GetSize();
    7955  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7956  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7957  const size_t suballoc1stCount = suballocations1st.size();
    7958  const size_t suballoc2ndCount = suballocations2nd.size();
    7959 
    7960  // FIRST PASS
    7961 
    7962  size_t unusedRangeCount = 0;
    7963  VkDeviceSize usedBytes = 0;
    7964 
    7965  VkDeviceSize lastOffset = 0;
    7966 
    7967  size_t alloc2ndCount = 0;
    7968  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7969  {
    7970  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7971  size_t nextAlloc2ndIndex = 0;
    7972  while(lastOffset < freeSpace2ndTo1stEnd)
    7973  {
    7974  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7975  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7976  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7977  {
    7978  ++nextAlloc2ndIndex;
    7979  }
    7980 
    7981  // Found non-null allocation.
    7982  if(nextAlloc2ndIndex < suballoc2ndCount)
    7983  {
    7984  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7985 
    7986  // 1. Process free space before this allocation.
    7987  if(lastOffset < suballoc.offset)
    7988  {
    7989  // There is free space from lastOffset to suballoc.offset.
    7990  ++unusedRangeCount;
    7991  }
    7992 
    7993  // 2. Process this allocation.
    7994  // There is allocation with suballoc.offset, suballoc.size.
    7995  ++alloc2ndCount;
    7996  usedBytes += suballoc.size;
    7997 
    7998  // 3. Prepare for next iteration.
    7999  lastOffset = suballoc.offset + suballoc.size;
    8000  ++nextAlloc2ndIndex;
    8001  }
    8002  // We are at the end.
    8003  else
    8004  {
    8005  if(lastOffset < freeSpace2ndTo1stEnd)
    8006  {
    8007  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    8008  ++unusedRangeCount;
    8009  }
    8010 
    8011  // End of loop.
    8012  lastOffset = freeSpace2ndTo1stEnd;
    8013  }
    8014  }
    8015  }
    8016 
    8017  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    8018  size_t alloc1stCount = 0;
    8019  const VkDeviceSize freeSpace1stTo2ndEnd =
    8020  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    8021  while(lastOffset < freeSpace1stTo2ndEnd)
    8022  {
    8023  // Find next non-null allocation or move nextAllocIndex to the end.
    8024  while(nextAlloc1stIndex < suballoc1stCount &&
    8025  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    8026  {
    8027  ++nextAlloc1stIndex;
    8028  }
    8029 
    8030  // Found non-null allocation.
    8031  if(nextAlloc1stIndex < suballoc1stCount)
    8032  {
    8033  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    8034 
    8035  // 1. Process free space before this allocation.
    8036  if(lastOffset < suballoc.offset)
    8037  {
    8038  // There is free space from lastOffset to suballoc.offset.
    8039  ++unusedRangeCount;
    8040  }
    8041 
    8042  // 2. Process this allocation.
    8043  // There is allocation with suballoc.offset, suballoc.size.
    8044  ++alloc1stCount;
    8045  usedBytes += suballoc.size;
    8046 
    8047  // 3. Prepare for next iteration.
    8048  lastOffset = suballoc.offset + suballoc.size;
    8049  ++nextAlloc1stIndex;
    8050  }
    8051  // We are at the end.
    8052  else
    8053  {
    8054  if(lastOffset < size)
    8055  {
    8056  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    8057  ++unusedRangeCount;
    8058  }
    8059 
    8060  // End of loop.
    8061  lastOffset = freeSpace1stTo2ndEnd;
    8062  }
    8063  }
    8064 
    8065  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8066  {
    8067  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    8068  while(lastOffset < size)
    8069  {
    8070  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8071  while(nextAlloc2ndIndex != SIZE_MAX &&
    8072  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8073  {
    8074  --nextAlloc2ndIndex;
    8075  }
    8076 
    8077  // Found non-null allocation.
    8078  if(nextAlloc2ndIndex != SIZE_MAX)
    8079  {
    8080  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8081 
    8082  // 1. Process free space before this allocation.
    8083  if(lastOffset < suballoc.offset)
    8084  {
    8085  // There is free space from lastOffset to suballoc.offset.
    8086  ++unusedRangeCount;
    8087  }
    8088 
    8089  // 2. Process this allocation.
    8090  // There is allocation with suballoc.offset, suballoc.size.
    8091  ++alloc2ndCount;
    8092  usedBytes += suballoc.size;
    8093 
    8094  // 3. Prepare for next iteration.
    8095  lastOffset = suballoc.offset + suballoc.size;
    8096  --nextAlloc2ndIndex;
    8097  }
    8098  // We are at the end.
    8099  else
    8100  {
    8101  if(lastOffset < size)
    8102  {
    8103  // There is free space from lastOffset to size.
    8104  ++unusedRangeCount;
    8105  }
    8106 
    8107  // End of loop.
    8108  lastOffset = size;
    8109  }
    8110  }
    8111  }
    8112 
    8113  const VkDeviceSize unusedBytes = size - usedBytes;
    8114  PrintDetailedMap_Begin(json, unusedBytes, alloc1stCount + alloc2ndCount, unusedRangeCount);
    8115 
    8116  // SECOND PASS
    8117  lastOffset = 0;
    8118 
    8119  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8120  {
    8121  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    8122  size_t nextAlloc2ndIndex = 0;
    8123  while(lastOffset < freeSpace2ndTo1stEnd)
    8124  {
    8125  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8126  while(nextAlloc2ndIndex < suballoc2ndCount &&
    8127  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8128  {
    8129  ++nextAlloc2ndIndex;
    8130  }
    8131 
    8132  // Found non-null allocation.
    8133  if(nextAlloc2ndIndex < suballoc2ndCount)
    8134  {
    8135  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8136 
    8137  // 1. Process free space before this allocation.
    8138  if(lastOffset < suballoc.offset)
    8139  {
    8140  // There is free space from lastOffset to suballoc.offset.
    8141  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8142  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8143  }
    8144 
    8145  // 2. Process this allocation.
    8146  // There is allocation with suballoc.offset, suballoc.size.
    8147  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8148 
    8149  // 3. Prepare for next iteration.
    8150  lastOffset = suballoc.offset + suballoc.size;
    8151  ++nextAlloc2ndIndex;
    8152  }
    8153  // We are at the end.
    8154  else
    8155  {
    8156  if(lastOffset < freeSpace2ndTo1stEnd)
    8157  {
    8158  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    8159  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    8160  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8161  }
    8162 
    8163  // End of loop.
    8164  lastOffset = freeSpace2ndTo1stEnd;
    8165  }
    8166  }
    8167  }
    8168 
    8169  nextAlloc1stIndex = m_1stNullItemsBeginCount;
    8170  while(lastOffset < freeSpace1stTo2ndEnd)
    8171  {
    8172  // Find next non-null allocation or move nextAllocIndex to the end.
    8173  while(nextAlloc1stIndex < suballoc1stCount &&
    8174  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    8175  {
    8176  ++nextAlloc1stIndex;
    8177  }
    8178 
    8179  // Found non-null allocation.
    8180  if(nextAlloc1stIndex < suballoc1stCount)
    8181  {
    8182  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    8183 
    8184  // 1. Process free space before this allocation.
    8185  if(lastOffset < suballoc.offset)
    8186  {
    8187  // There is free space from lastOffset to suballoc.offset.
    8188  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8189  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8190  }
    8191 
    8192  // 2. Process this allocation.
    8193  // There is allocation with suballoc.offset, suballoc.size.
    8194  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8195 
    8196  // 3. Prepare for next iteration.
    8197  lastOffset = suballoc.offset + suballoc.size;
    8198  ++nextAlloc1stIndex;
    8199  }
    8200  // We are at the end.
    8201  else
    8202  {
    8203  if(lastOffset < freeSpace1stTo2ndEnd)
    8204  {
    8205  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    8206  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    8207  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8208  }
    8209 
    8210  // End of loop.
    8211  lastOffset = freeSpace1stTo2ndEnd;
    8212  }
    8213  }
    8214 
    8215  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8216  {
    8217  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    8218  while(lastOffset < size)
    8219  {
    8220  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8221  while(nextAlloc2ndIndex != SIZE_MAX &&
    8222  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8223  {
    8224  --nextAlloc2ndIndex;
    8225  }
    8226 
    8227  // Found non-null allocation.
    8228  if(nextAlloc2ndIndex != SIZE_MAX)
    8229  {
    8230  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8231 
    8232  // 1. Process free space before this allocation.
    8233  if(lastOffset < suballoc.offset)
    8234  {
    8235  // There is free space from lastOffset to suballoc.offset.
    8236  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8237  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8238  }
    8239 
    8240  // 2. Process this allocation.
    8241  // There is allocation with suballoc.offset, suballoc.size.
    8242  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8243 
    8244  // 3. Prepare for next iteration.
    8245  lastOffset = suballoc.offset + suballoc.size;
    8246  --nextAlloc2ndIndex;
    8247  }
    8248  // We are at the end.
    8249  else
    8250  {
    8251  if(lastOffset < size)
    8252  {
    8253  // There is free space from lastOffset to size.
    8254  const VkDeviceSize unusedRangeSize = size - lastOffset;
    8255  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8256  }
    8257 
    8258  // End of loop.
    8259  lastOffset = size;
    8260  }
    8261  }
    8262  }
    8263 
    8264  PrintDetailedMap_End(json);
    8265 }
    8266 #endif // #if VMA_STATS_STRING_ENABLED
    8267 
    8268 bool VmaBlockMetadata_Linear::CreateAllocationRequest(
    8269  uint32_t currentFrameIndex,
    8270  uint32_t frameInUseCount,
    8271  VkDeviceSize bufferImageGranularity,
    8272  VkDeviceSize allocSize,
    8273  VkDeviceSize allocAlignment,
    8274  bool upperAddress,
    8275  VmaSuballocationType allocType,
    8276  bool canMakeOtherLost,
    8277  VmaAllocationRequest* pAllocationRequest)
    8278 {
    8279  VMA_ASSERT(allocSize > 0);
    8280  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    8281  VMA_ASSERT(pAllocationRequest != VMA_NULL);
    8282  VMA_HEAVY_ASSERT(Validate());
    8283 
    8284  const VkDeviceSize size = GetSize();
    8285  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8286  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8287 
    8288  if(upperAddress)
    8289  {
    8290  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8291  {
    8292  VMA_ASSERT(0 && "Trying to use pool with linear algorithm as double stack, while it is already being used as ring buffer.");
    8293  return false;
    8294  }
    8295 
    8296  // Try to allocate before 2nd.back(), or end of block if 2nd.empty().
    8297  if(allocSize > size)
    8298  {
    8299  return false;
    8300  }
    8301  VkDeviceSize resultBaseOffset = size - allocSize;
    8302  if(!suballocations2nd.empty())
    8303  {
    8304  const VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8305  resultBaseOffset = lastSuballoc.offset - allocSize;
    8306  if(allocSize > lastSuballoc.offset)
    8307  {
    8308  return false;
    8309  }
    8310  }
    8311 
    8312  // Start from offset equal to end of free space.
    8313  VkDeviceSize resultOffset = resultBaseOffset;
    8314 
    8315  // Apply VMA_DEBUG_MARGIN at the end.
    8316  if(VMA_DEBUG_MARGIN > 0)
    8317  {
    8318  if(resultOffset < VMA_DEBUG_MARGIN)
    8319  {
    8320  return false;
    8321  }
    8322  resultOffset -= VMA_DEBUG_MARGIN;
    8323  }
    8324 
    8325  // Apply alignment.
    8326  resultOffset = VmaAlignDown(resultOffset, allocAlignment);
    8327 
    8328  // Check next suballocations from 2nd for BufferImageGranularity conflicts.
    8329  // Make bigger alignment if necessary.
    8330  if(bufferImageGranularity > 1 && !suballocations2nd.empty())
    8331  {
    8332  bool bufferImageGranularityConflict = false;
    8333  for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
    8334  {
    8335  const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
    8336  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8337  {
    8338  if(VmaIsBufferImageGranularityConflict(nextSuballoc.type, allocType))
    8339  {
    8340  bufferImageGranularityConflict = true;
    8341  break;
    8342  }
    8343  }
    8344  else
    8345  // Already on previous page.
    8346  break;
    8347  }
    8348  if(bufferImageGranularityConflict)
    8349  {
    8350  resultOffset = VmaAlignDown(resultOffset, bufferImageGranularity);
    8351  }
    8352  }
    8353 
    8354  // There is enough free space.
    8355  const VkDeviceSize endOf1st = !suballocations1st.empty() ?
    8356  suballocations1st.back().offset + suballocations1st.back().size :
    8357  0;
    8358  if(endOf1st + VMA_DEBUG_MARGIN <= resultOffset)
    8359  {
    8360  // Check previous suballocations for BufferImageGranularity conflicts.
    8361  // If conflict exists, allocation cannot be made here.
    8362  if(bufferImageGranularity > 1)
    8363  {
    8364  for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
    8365  {
    8366  const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
    8367  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8368  {
    8369  if(VmaIsBufferImageGranularityConflict(allocType, prevSuballoc.type))
    8370  {
    8371  return false;
    8372  }
    8373  }
    8374  else
    8375  {
    8376  // Already on next page.
    8377  break;
    8378  }
    8379  }
    8380  }
    8381 
    8382  // All tests passed: Success.
    8383  pAllocationRequest->offset = resultOffset;
    8384  pAllocationRequest->sumFreeSize = resultBaseOffset + allocSize - endOf1st;
    8385  pAllocationRequest->sumItemSize = 0;
    8386  // pAllocationRequest->item unused.
    8387  pAllocationRequest->itemsToMakeLostCount = 0;
    8388  return true;
    8389  }
    8390  }
    8391  else // !upperAddress
    8392  {
    8393  if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8394  {
    8395  // Try to allocate at the end of 1st vector.
    8396 
    8397  VkDeviceSize resultBaseOffset = 0;
    8398  if(!suballocations1st.empty())
    8399  {
    8400  const VmaSuballocation& lastSuballoc = suballocations1st.back();
    8401  resultBaseOffset = lastSuballoc.offset + lastSuballoc.size;
    8402  }
    8403 
    8404  // Start from offset equal to beginning of free space.
    8405  VkDeviceSize resultOffset = resultBaseOffset;
    8406 
    8407  // Apply VMA_DEBUG_MARGIN at the beginning.
    8408  if(VMA_DEBUG_MARGIN > 0)
    8409  {
    8410  resultOffset += VMA_DEBUG_MARGIN;
    8411  }
    8412 
    8413  // Apply alignment.
    8414  resultOffset = VmaAlignUp(resultOffset, allocAlignment);
    8415 
    8416  // Check previous suballocations for BufferImageGranularity conflicts.
    8417  // Make bigger alignment if necessary.
    8418  if(bufferImageGranularity > 1 && !suballocations1st.empty())
    8419  {
    8420  bool bufferImageGranularityConflict = false;
    8421  for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
    8422  {
    8423  const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
    8424  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8425  {
    8426  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    8427  {
    8428  bufferImageGranularityConflict = true;
    8429  break;
    8430  }
    8431  }
    8432  else
    8433  // Already on previous page.
    8434  break;
    8435  }
    8436  if(bufferImageGranularityConflict)
    8437  {
    8438  resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
    8439  }
    8440  }
    8441 
    8442  const VkDeviceSize freeSpaceEnd = m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ?
    8443  suballocations2nd.back().offset : size;
    8444 
    8445  // There is enough free space at the end after alignment.
    8446  if(resultOffset + allocSize + VMA_DEBUG_MARGIN <= freeSpaceEnd)
    8447  {
    8448  // Check next suballocations for BufferImageGranularity conflicts.
    8449  // If conflict exists, allocation cannot be made here.
    8450  if(bufferImageGranularity > 1 && m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8451  {
    8452  for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
    8453  {
    8454  const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
    8455  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8456  {
    8457  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    8458  {
    8459  return false;
    8460  }
    8461  }
    8462  else
    8463  {
    8464  // Already on previous page.
    8465  break;
    8466  }
    8467  }
    8468  }
    8469 
    8470  // All tests passed: Success.
    8471  pAllocationRequest->offset = resultOffset;
    8472  pAllocationRequest->sumFreeSize = freeSpaceEnd - resultBaseOffset;
    8473  pAllocationRequest->sumItemSize = 0;
    8474  // pAllocationRequest->item unused.
    8475  pAllocationRequest->itemsToMakeLostCount = 0;
    8476  return true;
    8477  }
    8478  }
    8479 
    8480  // Wrap-around to end of 2nd vector. Try to allocate there, watching for the
    8481  // beginning of 1st vector as the end of free space.
    8482  if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8483  {
    8484  VMA_ASSERT(!suballocations1st.empty());
    8485 
    8486  VkDeviceSize resultBaseOffset = 0;
    8487  if(!suballocations2nd.empty())
    8488  {
    8489  const VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8490  resultBaseOffset = lastSuballoc.offset + lastSuballoc.size;
    8491  }
    8492 
    8493  // Start from offset equal to beginning of free space.
    8494  VkDeviceSize resultOffset = resultBaseOffset;
    8495 
    8496  // Apply VMA_DEBUG_MARGIN at the beginning.
    8497  if(VMA_DEBUG_MARGIN > 0)
    8498  {
    8499  resultOffset += VMA_DEBUG_MARGIN;
    8500  }
    8501 
    8502  // Apply alignment.
    8503  resultOffset = VmaAlignUp(resultOffset, allocAlignment);
    8504 
    8505  // Check previous suballocations for BufferImageGranularity conflicts.
    8506  // Make bigger alignment if necessary.
    8507  if(bufferImageGranularity > 1 && !suballocations2nd.empty())
    8508  {
    8509  bool bufferImageGranularityConflict = false;
    8510  for(size_t prevSuballocIndex = suballocations2nd.size(); prevSuballocIndex--; )
    8511  {
    8512  const VmaSuballocation& prevSuballoc = suballocations2nd[prevSuballocIndex];
    8513  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8514  {
    8515  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    8516  {
    8517  bufferImageGranularityConflict = true;
    8518  break;
    8519  }
    8520  }
    8521  else
    8522  // Already on previous page.
    8523  break;
    8524  }
    8525  if(bufferImageGranularityConflict)
    8526  {
    8527  resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
    8528  }
    8529  }
    8530 
    8531  pAllocationRequest->itemsToMakeLostCount = 0;
    8532  pAllocationRequest->sumItemSize = 0;
    8533  size_t index1st = m_1stNullItemsBeginCount;
    8534 
    8535  if(canMakeOtherLost)
    8536  {
    8537  while(index1st < suballocations1st.size() &&
    8538  resultOffset + allocSize + VMA_DEBUG_MARGIN > suballocations1st[index1st].offset)
    8539  {
    8540  // Next colliding allocation at the beginning of 1st vector found. Try to make it lost.
    8541  const VmaSuballocation& suballoc = suballocations1st[index1st];
    8542  if(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE)
    8543  {
    8544  // No problem.
    8545  }
    8546  else
    8547  {
    8548  VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE);
    8549  if(suballoc.hAllocation->CanBecomeLost() &&
    8550  suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    8551  {
    8552  ++pAllocationRequest->itemsToMakeLostCount;
    8553  pAllocationRequest->sumItemSize += suballoc.size;
    8554  }
    8555  else
    8556  {
    8557  return false;
    8558  }
    8559  }
    8560  ++index1st;
    8561  }
    8562 
    8563  // Check next suballocations for BufferImageGranularity conflicts.
    8564  // If conflict exists, we must mark more allocations lost or fail.
    8565  if(bufferImageGranularity > 1)
    8566  {
    8567  while(index1st < suballocations1st.size())
    8568  {
    8569  const VmaSuballocation& suballoc = suballocations1st[index1st];
    8570  if(VmaBlocksOnSamePage(resultOffset, allocSize, suballoc.offset, bufferImageGranularity))
    8571  {
    8572  if(suballoc.hAllocation != VK_NULL_HANDLE)
    8573  {
    8574  // Not checking actual VmaIsBufferImageGranularityConflict(allocType, suballoc.type).
    8575  if(suballoc.hAllocation->CanBecomeLost() &&
    8576  suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    8577  {
    8578  ++pAllocationRequest->itemsToMakeLostCount;
    8579  pAllocationRequest->sumItemSize += suballoc.size;
    8580  }
    8581  else
    8582  {
    8583  return false;
    8584  }
    8585  }
    8586  }
    8587  else
    8588  {
    8589  // Already on next page.
    8590  break;
    8591  }
    8592  ++index1st;
    8593  }
    8594  }
    8595  }
    8596 
    8597  // There is enough free space at the end after alignment.
    8598  if(index1st == suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN < size ||
    8599  index1st < suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN <= suballocations1st[index1st].offset)
    8600  {
    8601  // Check next suballocations for BufferImageGranularity conflicts.
    8602  // If conflict exists, allocation cannot be made here.
    8603  if(bufferImageGranularity > 1)
    8604  {
    8605  for(size_t nextSuballocIndex = index1st;
    8606  nextSuballocIndex < suballocations1st.size();
    8607  nextSuballocIndex++)
    8608  {
    8609  const VmaSuballocation& nextSuballoc = suballocations1st[nextSuballocIndex];
    8610  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8611  {
    8612  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    8613  {
    8614  return false;
    8615  }
    8616  }
    8617  else
    8618  {
    8619  // Already on next page.
    8620  break;
    8621  }
    8622  }
    8623  }
    8624 
    8625  // All tests passed: Success.
    8626  pAllocationRequest->offset = resultOffset;
    8627  pAllocationRequest->sumFreeSize =
    8628  (index1st < suballocations1st.size() ? suballocations1st[index1st].offset : size)
    8629  - resultBaseOffset
    8630  - pAllocationRequest->sumItemSize;
    8631  // pAllocationRequest->item unused.
    8632  return true;
    8633  }
    8634  }
    8635  }
    8636 
    8637  return false;
    8638 }
    8639 
    8640 bool VmaBlockMetadata_Linear::MakeRequestedAllocationsLost(
    8641  uint32_t currentFrameIndex,
    8642  uint32_t frameInUseCount,
    8643  VmaAllocationRequest* pAllocationRequest)
    8644 {
    8645  if(pAllocationRequest->itemsToMakeLostCount == 0)
    8646  {
    8647  return true;
    8648  }
    8649 
    8650  VMA_ASSERT(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER);
    8651 
    8652  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8653  size_t index1st = m_1stNullItemsBeginCount;
    8654  size_t madeLostCount = 0;
    8655  while(madeLostCount < pAllocationRequest->itemsToMakeLostCount)
    8656  {
    8657  VMA_ASSERT(index1st < suballocations1st.size());
    8658  VmaSuballocation& suballoc = suballocations1st[index1st];
    8659  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8660  {
    8661  VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE);
    8662  VMA_ASSERT(suballoc.hAllocation->CanBecomeLost());
    8663  if(suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8664  {
    8665  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8666  suballoc.hAllocation = VK_NULL_HANDLE;
    8667  m_SumFreeSize += suballoc.size;
    8668  ++m_1stNullItemsMiddleCount;
    8669  ++madeLostCount;
    8670  }
    8671  else
    8672  {
    8673  return false;
    8674  }
    8675  }
    8676  ++index1st;
    8677  }
    8678 
    8679  CleanupAfterFree();
    8680  //VMA_HEAVY_ASSERT(Validate()); // Already called by ClanupAfterFree().
    8681 
    8682  return true;
    8683 }
    8684 
    8685 uint32_t VmaBlockMetadata_Linear::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    8686 {
    8687  uint32_t lostAllocationCount = 0;
    8688 
    8689  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8690  for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i)
    8691  {
    8692  VmaSuballocation& suballoc = suballocations1st[i];
    8693  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE &&
    8694  suballoc.hAllocation->CanBecomeLost() &&
    8695  suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8696  {
    8697  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8698  suballoc.hAllocation = VK_NULL_HANDLE;
    8699  ++m_1stNullItemsMiddleCount;
    8700  m_SumFreeSize += suballoc.size;
    8701  ++lostAllocationCount;
    8702  }
    8703  }
    8704 
    8705  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8706  for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i)
    8707  {
    8708  VmaSuballocation& suballoc = suballocations2nd[i];
    8709  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE &&
    8710  suballoc.hAllocation->CanBecomeLost() &&
    8711  suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8712  {
    8713  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8714  suballoc.hAllocation = VK_NULL_HANDLE;
    8715  ++m_2ndNullItemsCount;
    8716  ++lostAllocationCount;
    8717  }
    8718  }
    8719 
    8720  if(lostAllocationCount)
    8721  {
    8722  CleanupAfterFree();
    8723  }
    8724 
    8725  return lostAllocationCount;
    8726 }
    8727 
    8728 VkResult VmaBlockMetadata_Linear::CheckCorruption(const void* pBlockData)
    8729 {
    8730  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8731  for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i)
    8732  {
    8733  const VmaSuballocation& suballoc = suballocations1st[i];
    8734  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8735  {
    8736  if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN))
    8737  {
    8738  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    8739  return VK_ERROR_VALIDATION_FAILED_EXT;
    8740  }
    8741  if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
    8742  {
    8743  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    8744  return VK_ERROR_VALIDATION_FAILED_EXT;
    8745  }
    8746  }
    8747  }
    8748 
    8749  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8750  for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i)
    8751  {
    8752  const VmaSuballocation& suballoc = suballocations2nd[i];
    8753  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8754  {
    8755  if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN))
    8756  {
    8757  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    8758  return VK_ERROR_VALIDATION_FAILED_EXT;
    8759  }
    8760  if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
    8761  {
    8762  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    8763  return VK_ERROR_VALIDATION_FAILED_EXT;
    8764  }
    8765  }
    8766  }
    8767 
    8768  return VK_SUCCESS;
    8769 }
    8770 
    8771 void VmaBlockMetadata_Linear::Alloc(
    8772  const VmaAllocationRequest& request,
    8773  VmaSuballocationType type,
    8774  VkDeviceSize allocSize,
    8775  bool upperAddress,
    8776  VmaAllocation hAllocation)
    8777 {
    8778  const VmaSuballocation newSuballoc = { request.offset, allocSize, hAllocation, type };
    8779 
    8780  if(upperAddress)
    8781  {
    8782  VMA_ASSERT(m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER &&
    8783  "CRITICAL ERROR: Trying to use linear allocator as double stack while it was already used as ring buffer.");
    8784  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8785  suballocations2nd.push_back(newSuballoc);
    8786  m_2ndVectorMode = SECOND_VECTOR_DOUBLE_STACK;
    8787  }
    8788  else
    8789  {
    8790  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8791 
    8792  // First allocation.
    8793  if(suballocations1st.empty())
    8794  {
    8795  suballocations1st.push_back(newSuballoc);
    8796  }
    8797  else
    8798  {
    8799  // New allocation at the end of 1st vector.
    8800  if(request.offset >= suballocations1st.back().offset + suballocations1st.back().size)
    8801  {
    8802  // Check if it fits before the end of the block.
    8803  VMA_ASSERT(request.offset + allocSize <= GetSize());
    8804  suballocations1st.push_back(newSuballoc);
    8805  }
    8806  // New allocation at the end of 2-part ring buffer, so before first allocation from 1st vector.
    8807  else if(request.offset + allocSize <= suballocations1st[m_1stNullItemsBeginCount].offset)
    8808  {
    8809  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8810 
    8811  switch(m_2ndVectorMode)
    8812  {
    8813  case SECOND_VECTOR_EMPTY:
    8814  // First allocation from second part ring buffer.
    8815  VMA_ASSERT(suballocations2nd.empty());
    8816  m_2ndVectorMode = SECOND_VECTOR_RING_BUFFER;
    8817  break;
    8818  case SECOND_VECTOR_RING_BUFFER:
    8819  // 2-part ring buffer is already started.
    8820  VMA_ASSERT(!suballocations2nd.empty());
    8821  break;
    8822  case SECOND_VECTOR_DOUBLE_STACK:
    8823  VMA_ASSERT(0 && "CRITICAL ERROR: Trying to use linear allocator as ring buffer while it was already used as double stack.");
    8824  break;
    8825  default:
    8826  VMA_ASSERT(0);
    8827  }
    8828 
    8829  suballocations2nd.push_back(newSuballoc);
    8830  }
    8831  else
    8832  {
    8833  VMA_ASSERT(0 && "CRITICAL INTERNAL ERROR.");
    8834  }
    8835  }
    8836  }
    8837 
    8838  m_SumFreeSize -= newSuballoc.size;
    8839 }
    8840 
    8841 void VmaBlockMetadata_Linear::Free(const VmaAllocation allocation)
    8842 {
    8843  FreeAtOffset(allocation->GetOffset());
    8844 }
    8845 
    8846 void VmaBlockMetadata_Linear::FreeAtOffset(VkDeviceSize offset)
    8847 {
    8848  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8849  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8850 
    8851  if(!suballocations1st.empty())
    8852  {
    8853  // First allocation: Mark it as next empty at the beginning.
    8854  VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
    8855  if(firstSuballoc.offset == offset)
    8856  {
    8857  firstSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8858  firstSuballoc.hAllocation = VK_NULL_HANDLE;
    8859  m_SumFreeSize += firstSuballoc.size;
    8860  ++m_1stNullItemsBeginCount;
    8861  CleanupAfterFree();
    8862  return;
    8863  }
    8864  }
    8865 
    8866  // Last allocation in 2-part ring buffer or top of upper stack (same logic).
    8867  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ||
    8868  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8869  {
    8870  VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8871  if(lastSuballoc.offset == offset)
    8872  {
    8873  m_SumFreeSize += lastSuballoc.size;
    8874  suballocations2nd.pop_back();
    8875  CleanupAfterFree();
    8876  return;
    8877  }
    8878  }
    8879  // Last allocation in 1st vector.
    8880  else if(m_2ndVectorMode == SECOND_VECTOR_EMPTY)
    8881  {
    8882  VmaSuballocation& lastSuballoc = suballocations1st.back();
    8883  if(lastSuballoc.offset == offset)
    8884  {
    8885  m_SumFreeSize += lastSuballoc.size;
    8886  suballocations1st.pop_back();
    8887  CleanupAfterFree();
    8888  return;
    8889  }
    8890  }
    8891 
    8892  // Item from the middle of 1st vector.
    8893  {
    8894  VmaSuballocation refSuballoc;
    8895  refSuballoc.offset = offset;
    8896  // Rest of members stays uninitialized intentionally for better performance.
    8897  SuballocationVectorType::iterator it = VmaVectorFindSorted<VmaSuballocationOffsetLess>(
    8898  suballocations1st.begin() + m_1stNullItemsBeginCount,
    8899  suballocations1st.end(),
    8900  refSuballoc);
    8901  if(it != suballocations1st.end())
    8902  {
    8903  it->type = VMA_SUBALLOCATION_TYPE_FREE;
    8904  it->hAllocation = VK_NULL_HANDLE;
    8905  ++m_1stNullItemsMiddleCount;
    8906  m_SumFreeSize += it->size;
    8907  CleanupAfterFree();
    8908  return;
    8909  }
    8910  }
    8911 
    8912  if(m_2ndVectorMode != SECOND_VECTOR_EMPTY)
    8913  {
    8914  // Item from the middle of 2nd vector.
    8915  VmaSuballocation refSuballoc;
    8916  refSuballoc.offset = offset;
    8917  // Rest of members stays uninitialized intentionally for better performance.
    8918  SuballocationVectorType::iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
    8919  VmaVectorFindSorted<VmaSuballocationOffsetLess>(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc) :
    8920  VmaVectorFindSorted<VmaSuballocationOffsetGreater>(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc);
    8921  if(it != suballocations2nd.end())
    8922  {
    8923  it->type = VMA_SUBALLOCATION_TYPE_FREE;
    8924  it->hAllocation = VK_NULL_HANDLE;
    8925  ++m_2ndNullItemsCount;
    8926  m_SumFreeSize += it->size;
    8927  CleanupAfterFree();
    8928  return;
    8929  }
    8930  }
    8931 
    8932  VMA_ASSERT(0 && "Allocation to free not found in linear allocator!");
    8933 }
    8934 
    8935 bool VmaBlockMetadata_Linear::ShouldCompact1st() const
    8936 {
    8937  const size_t nullItemCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
    8938  const size_t suballocCount = AccessSuballocations1st().size();
    8939  return suballocCount > 32 && nullItemCount * 2 >= (suballocCount - nullItemCount) * 3;
    8940 }
    8941 
    8942 void VmaBlockMetadata_Linear::CleanupAfterFree()
    8943 {
    8944  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8945  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8946 
    8947  if(IsEmpty())
    8948  {
    8949  suballocations1st.clear();
    8950  suballocations2nd.clear();
    8951  m_1stNullItemsBeginCount = 0;
    8952  m_1stNullItemsMiddleCount = 0;
    8953  m_2ndNullItemsCount = 0;
    8954  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    8955  }
    8956  else
    8957  {
    8958  const size_t suballoc1stCount = suballocations1st.size();
    8959  const size_t nullItem1stCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
    8960  VMA_ASSERT(nullItem1stCount <= suballoc1stCount);
    8961 
    8962  // Find more null items at the beginning of 1st vector.
    8963  while(m_1stNullItemsBeginCount < suballoc1stCount &&
    8964  suballocations1st[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    8965  {
    8966  ++m_1stNullItemsBeginCount;
    8967  --m_1stNullItemsMiddleCount;
    8968  }
    8969 
    8970  // Find more null items at the end of 1st vector.
    8971  while(m_1stNullItemsMiddleCount > 0 &&
    8972  suballocations1st.back().hAllocation == VK_NULL_HANDLE)
    8973  {
    8974  --m_1stNullItemsMiddleCount;
    8975  suballocations1st.pop_back();
    8976  }
    8977 
    8978  // Find more null items at the end of 2nd vector.
    8979  while(m_2ndNullItemsCount > 0 &&
    8980  suballocations2nd.back().hAllocation == VK_NULL_HANDLE)
    8981  {
    8982  --m_2ndNullItemsCount;
    8983  suballocations2nd.pop_back();
    8984  }
    8985 
    8986  if(ShouldCompact1st())
    8987  {
    8988  const size_t nonNullItemCount = suballoc1stCount - nullItem1stCount;
    8989  size_t srcIndex = m_1stNullItemsBeginCount;
    8990  for(size_t dstIndex = 0; dstIndex < nonNullItemCount; ++dstIndex)
    8991  {
    8992  while(suballocations1st[srcIndex].hAllocation == VK_NULL_HANDLE)
    8993  {
    8994  ++srcIndex;
    8995  }
    8996  if(dstIndex != srcIndex)
    8997  {
    8998  suballocations1st[dstIndex] = suballocations1st[srcIndex];
    8999  }
    9000  ++srcIndex;
    9001  }
    9002  suballocations1st.resize(nonNullItemCount);
    9003  m_1stNullItemsBeginCount = 0;
    9004  m_1stNullItemsMiddleCount = 0;
    9005  }
    9006 
    9007  // 2nd vector became empty.
    9008  if(suballocations2nd.empty())
    9009  {
    9010  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    9011  }
    9012 
    9013  // 1st vector became empty.
    9014  if(suballocations1st.size() - m_1stNullItemsBeginCount == 0)
    9015  {
    9016  suballocations1st.clear();
    9017  m_1stNullItemsBeginCount = 0;
    9018 
    9019  if(!suballocations2nd.empty() && m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    9020  {
    9021  // Swap 1st with 2nd. Now 2nd is empty.
    9022  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    9023  m_1stNullItemsMiddleCount = m_2ndNullItemsCount;
    9024  while(m_1stNullItemsBeginCount < suballocations2nd.size() &&
    9025  suballocations2nd[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    9026  {
    9027  ++m_1stNullItemsBeginCount;
    9028  --m_1stNullItemsMiddleCount;
    9029  }
    9030  m_2ndNullItemsCount = 0;
    9031  m_1stVectorIndex ^= 1;
    9032  }
    9033  }
    9034  }
    9035 
    9036  VMA_HEAVY_ASSERT(Validate());
    9037 }
    9038 
    9039 
    9041 // class VmaDeviceMemoryBlock
    9042 
    9043 VmaDeviceMemoryBlock::VmaDeviceMemoryBlock(VmaAllocator hAllocator) :
    9044  m_pMetadata(VMA_NULL),
    9045  m_MemoryTypeIndex(UINT32_MAX),
    9046  m_Id(0),
    9047  m_hMemory(VK_NULL_HANDLE),
    9048  m_MapCount(0),
    9049  m_pMappedData(VMA_NULL)
    9050 {
    9051 }
    9052 
    9053 void VmaDeviceMemoryBlock::Init(
    9054  VmaAllocator hAllocator,
    9055  uint32_t newMemoryTypeIndex,
    9056  VkDeviceMemory newMemory,
    9057  VkDeviceSize newSize,
    9058  uint32_t id,
    9059  bool linearAlgorithm)
    9060 {
    9061  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
    9062 
    9063  m_MemoryTypeIndex = newMemoryTypeIndex;
    9064  m_Id = id;
    9065  m_hMemory = newMemory;
    9066 
    9067  if(linearAlgorithm)
    9068  {
    9069  m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Linear)(hAllocator);
    9070  }
    9071  else
    9072  {
    9073  m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Generic)(hAllocator);
    9074  }
    9075  m_pMetadata->Init(newSize);
    9076 }
    9077 
    9078 void VmaDeviceMemoryBlock::Destroy(VmaAllocator allocator)
    9079 {
    9080  // This is the most important assert in the entire library.
    9081  // Hitting it means you have some memory leak - unreleased VmaAllocation objects.
    9082  VMA_ASSERT(m_pMetadata->IsEmpty() && "Some allocations were not freed before destruction of this memory block!");
    9083 
    9084  VMA_ASSERT(m_hMemory != VK_NULL_HANDLE);
    9085  allocator->FreeVulkanMemory(m_MemoryTypeIndex, m_pMetadata->GetSize(), m_hMemory);
    9086  m_hMemory = VK_NULL_HANDLE;
    9087 
    9088  vma_delete(allocator, m_pMetadata);
    9089  m_pMetadata = VMA_NULL;
    9090 }
    9091 
    9092 bool VmaDeviceMemoryBlock::Validate() const
    9093 {
    9094  if((m_hMemory == VK_NULL_HANDLE) ||
    9095  (m_pMetadata->GetSize() == 0))
    9096  {
    9097  return false;
    9098  }
    9099 
    9100  return m_pMetadata->Validate();
    9101 }
    9102 
    9103 VkResult VmaDeviceMemoryBlock::CheckCorruption(VmaAllocator hAllocator)
    9104 {
    9105  void* pData = nullptr;
    9106  VkResult res = Map(hAllocator, 1, &pData);
    9107  if(res != VK_SUCCESS)
    9108  {
    9109  return res;
    9110  }
    9111 
    9112  res = m_pMetadata->CheckCorruption(pData);
    9113 
    9114  Unmap(hAllocator, 1);
    9115 
    9116  return res;
    9117 }
    9118 
    9119 VkResult VmaDeviceMemoryBlock::Map(VmaAllocator hAllocator, uint32_t count, void** ppData)
    9120 {
    9121  if(count == 0)
    9122  {
    9123  return VK_SUCCESS;
    9124  }
    9125 
    9126  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9127  if(m_MapCount != 0)
    9128  {
    9129  m_MapCount += count;
    9130  VMA_ASSERT(m_pMappedData != VMA_NULL);
    9131  if(ppData != VMA_NULL)
    9132  {
    9133  *ppData = m_pMappedData;
    9134  }
    9135  return VK_SUCCESS;
    9136  }
    9137  else
    9138  {
    9139  VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
    9140  hAllocator->m_hDevice,
    9141  m_hMemory,
    9142  0, // offset
    9143  VK_WHOLE_SIZE,
    9144  0, // flags
    9145  &m_pMappedData);
    9146  if(result == VK_SUCCESS)
    9147  {
    9148  if(ppData != VMA_NULL)
    9149  {
    9150  *ppData = m_pMappedData;
    9151  }
    9152  m_MapCount = count;
    9153  }
    9154  return result;
    9155  }
    9156 }
    9157 
    9158 void VmaDeviceMemoryBlock::Unmap(VmaAllocator hAllocator, uint32_t count)
    9159 {
    9160  if(count == 0)
    9161  {
    9162  return;
    9163  }
    9164 
    9165  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9166  if(m_MapCount >= count)
    9167  {
    9168  m_MapCount -= count;
    9169  if(m_MapCount == 0)
    9170  {
    9171  m_pMappedData = VMA_NULL;
    9172  (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(hAllocator->m_hDevice, m_hMemory);
    9173  }
    9174  }
    9175  else
    9176  {
    9177  VMA_ASSERT(0 && "VkDeviceMemory block is being unmapped while it was not previously mapped.");
    9178  }
    9179 }
    9180 
    9181 VkResult VmaDeviceMemoryBlock::WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
    9182 {
    9183  VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
    9184  VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN);
    9185 
    9186  void* pData;
    9187  VkResult res = Map(hAllocator, 1, &pData);
    9188  if(res != VK_SUCCESS)
    9189  {
    9190  return res;
    9191  }
    9192 
    9193  VmaWriteMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN);
    9194  VmaWriteMagicValue(pData, allocOffset + allocSize);
    9195 
    9196  Unmap(hAllocator, 1);
    9197 
    9198  return VK_SUCCESS;
    9199 }
    9200 
    9201 VkResult VmaDeviceMemoryBlock::ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
    9202 {
    9203  VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
    9204  VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN);
    9205 
    9206  void* pData;
    9207  VkResult res = Map(hAllocator, 1, &pData);
    9208  if(res != VK_SUCCESS)
    9209  {
    9210  return res;
    9211  }
    9212 
    9213  if(!VmaValidateMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN))
    9214  {
    9215  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE FREED ALLOCATION!");
    9216  }
    9217  else if(!VmaValidateMagicValue(pData, allocOffset + allocSize))
    9218  {
    9219  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER FREED ALLOCATION!");
    9220  }
    9221 
    9222  Unmap(hAllocator, 1);
    9223 
    9224  return VK_SUCCESS;
    9225 }
    9226 
    9227 VkResult VmaDeviceMemoryBlock::BindBufferMemory(
    9228  const VmaAllocator hAllocator,
    9229  const VmaAllocation hAllocation,
    9230  VkBuffer hBuffer)
    9231 {
    9232  VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
    9233  hAllocation->GetBlock() == this);
    9234  // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
    9235  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9236  return hAllocator->GetVulkanFunctions().vkBindBufferMemory(
    9237  hAllocator->m_hDevice,
    9238  hBuffer,
    9239  m_hMemory,
    9240  hAllocation->GetOffset());
    9241 }
    9242 
    9243 VkResult VmaDeviceMemoryBlock::BindImageMemory(
    9244  const VmaAllocator hAllocator,
    9245  const VmaAllocation hAllocation,
    9246  VkImage hImage)
    9247 {
    9248  VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
    9249  hAllocation->GetBlock() == this);
    9250  // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
    9251  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9252  return hAllocator->GetVulkanFunctions().vkBindImageMemory(
    9253  hAllocator->m_hDevice,
    9254  hImage,
    9255  m_hMemory,
    9256  hAllocation->GetOffset());
    9257 }
    9258 
    9259 static void InitStatInfo(VmaStatInfo& outInfo)
    9260 {
    9261  memset(&outInfo, 0, sizeof(outInfo));
    9262  outInfo.allocationSizeMin = UINT64_MAX;
    9263  outInfo.unusedRangeSizeMin = UINT64_MAX;
    9264 }
    9265 
    9266 // Adds statistics srcInfo into inoutInfo, like: inoutInfo += srcInfo.
    9267 static void VmaAddStatInfo(VmaStatInfo& inoutInfo, const VmaStatInfo& srcInfo)
    9268 {
    9269  inoutInfo.blockCount += srcInfo.blockCount;
    9270  inoutInfo.allocationCount += srcInfo.allocationCount;
    9271  inoutInfo.unusedRangeCount += srcInfo.unusedRangeCount;
    9272  inoutInfo.usedBytes += srcInfo.usedBytes;
    9273  inoutInfo.unusedBytes += srcInfo.unusedBytes;
    9274  inoutInfo.allocationSizeMin = VMA_MIN(inoutInfo.allocationSizeMin, srcInfo.allocationSizeMin);
    9275  inoutInfo.allocationSizeMax = VMA_MAX(inoutInfo.allocationSizeMax, srcInfo.allocationSizeMax);
    9276  inoutInfo.unusedRangeSizeMin = VMA_MIN(inoutInfo.unusedRangeSizeMin, srcInfo.unusedRangeSizeMin);
    9277  inoutInfo.unusedRangeSizeMax = VMA_MAX(inoutInfo.unusedRangeSizeMax, srcInfo.unusedRangeSizeMax);
    9278 }
    9279 
    9280 static void VmaPostprocessCalcStatInfo(VmaStatInfo& inoutInfo)
    9281 {
    9282  inoutInfo.allocationSizeAvg = (inoutInfo.allocationCount > 0) ?
    9283  VmaRoundDiv<VkDeviceSize>(inoutInfo.usedBytes, inoutInfo.allocationCount) : 0;
    9284  inoutInfo.unusedRangeSizeAvg = (inoutInfo.unusedRangeCount > 0) ?
    9285  VmaRoundDiv<VkDeviceSize>(inoutInfo.unusedBytes, inoutInfo.unusedRangeCount) : 0;
    9286 }
    9287 
    9288 VmaPool_T::VmaPool_T(
    9289  VmaAllocator hAllocator,
    9290  const VmaPoolCreateInfo& createInfo) :
    9291  m_BlockVector(
    9292  hAllocator,
    9293  createInfo.memoryTypeIndex,
    9294  createInfo.blockSize,
    9295  createInfo.minBlockCount,
    9296  createInfo.maxBlockCount,
    9297  (createInfo.flags & VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT) != 0 ? 1 : hAllocator->GetBufferImageGranularity(),
    9298  createInfo.frameInUseCount,
    9299  true, // isCustomPool
    9300  (createInfo.flags & VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) != 0), // linearAlgorithm
    9301  m_Id(0)
    9302 {
    9303 }
    9304 
    9305 VmaPool_T::~VmaPool_T()
    9306 {
    9307 }
    9308 
    9309 #if VMA_STATS_STRING_ENABLED
    9310 
    9311 #endif // #if VMA_STATS_STRING_ENABLED
    9312 
    9313 VmaBlockVector::VmaBlockVector(
    9314  VmaAllocator hAllocator,
    9315  uint32_t memoryTypeIndex,
    9316  VkDeviceSize preferredBlockSize,
    9317  size_t minBlockCount,
    9318  size_t maxBlockCount,
    9319  VkDeviceSize bufferImageGranularity,
    9320  uint32_t frameInUseCount,
    9321  bool isCustomPool,
    9322  bool linearAlgorithm) :
    9323  m_hAllocator(hAllocator),
    9324  m_MemoryTypeIndex(memoryTypeIndex),
    9325  m_PreferredBlockSize(preferredBlockSize),
    9326  m_MinBlockCount(minBlockCount),
    9327  m_MaxBlockCount(maxBlockCount),
    9328  m_BufferImageGranularity(bufferImageGranularity),
    9329  m_FrameInUseCount(frameInUseCount),
    9330  m_IsCustomPool(isCustomPool),
    9331  m_LinearAlgorithm(linearAlgorithm),
    9332  m_Blocks(VmaStlAllocator<VmaDeviceMemoryBlock*>(hAllocator->GetAllocationCallbacks())),
    9333  m_HasEmptyBlock(false),
    9334  m_pDefragmentator(VMA_NULL),
    9335  m_NextBlockId(0)
    9336 {
    9337 }
    9338 
    9339 VmaBlockVector::~VmaBlockVector()
    9340 {
    9341  VMA_ASSERT(m_pDefragmentator == VMA_NULL);
    9342 
    9343  for(size_t i = m_Blocks.size(); i--; )
    9344  {
    9345  m_Blocks[i]->Destroy(m_hAllocator);
    9346  vma_delete(m_hAllocator, m_Blocks[i]);
    9347  }
    9348 }
    9349 
    9350 VkResult VmaBlockVector::CreateMinBlocks()
    9351 {
    9352  for(size_t i = 0; i < m_MinBlockCount; ++i)
    9353  {
    9354  VkResult res = CreateBlock(m_PreferredBlockSize, VMA_NULL);
    9355  if(res != VK_SUCCESS)
    9356  {
    9357  return res;
    9358  }
    9359  }
    9360  return VK_SUCCESS;
    9361 }
    9362 
    9363 void VmaBlockVector::GetPoolStats(VmaPoolStats* pStats)
    9364 {
    9365  pStats->size = 0;
    9366  pStats->unusedSize = 0;
    9367  pStats->allocationCount = 0;
    9368  pStats->unusedRangeCount = 0;
    9369  pStats->unusedRangeSizeMax = 0;
    9370 
    9371  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9372 
    9373  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    9374  {
    9375  const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    9376  VMA_ASSERT(pBlock);
    9377  VMA_HEAVY_ASSERT(pBlock->Validate());
    9378  pBlock->m_pMetadata->AddPoolStats(*pStats);
    9379  }
    9380 }
    9381 
    9382 bool VmaBlockVector::IsCorruptionDetectionEnabled() const
    9383 {
    9384  const uint32_t requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    9385  return (VMA_DEBUG_DETECT_CORRUPTION != 0) &&
    9386  (VMA_DEBUG_MARGIN > 0) &&
    9387  (m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags;
    9388 }
    9389 
    9390 static const uint32_t VMA_ALLOCATION_TRY_COUNT = 32;
    9391 
    9392 VkResult VmaBlockVector::Allocate(
    9393  VmaPool hCurrentPool,
    9394  uint32_t currentFrameIndex,
    9395  VkDeviceSize size,
    9396  VkDeviceSize alignment,
    9397  const VmaAllocationCreateInfo& createInfo,
    9398  VmaSuballocationType suballocType,
    9399  VmaAllocation* pAllocation)
    9400 {
    9401  const bool isUpperAddress = (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0;
    9402  const bool canMakeOtherLost = (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT) != 0;
    9403  const bool mapped = (createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
    9404  const bool isUserDataString = (createInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0;
    9405  const bool canCreateNewBlock =
    9406  ((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0) &&
    9407  (m_Blocks.size() < m_MaxBlockCount);
    9408 
    9409  // Upper address can only be used with linear allocator.
    9410  if(isUpperAddress && !m_LinearAlgorithm)
    9411  {
    9412  return VK_ERROR_FEATURE_NOT_PRESENT;
    9413  }
    9414 
    9415  // Early reject: requested allocation size is larger that maximum block size for this block vector.
    9416  if(size + 2 * VMA_DEBUG_MARGIN > m_PreferredBlockSize)
    9417  {
    9418  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9419  }
    9420 
    9421  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9422 
    9423  /*
    9424  Under certain condition, this whole section can be skipped for optimization, so
    9425  we move on directly to trying to allocate with canMakeOtherLost. That's the case
    9426  e.g. for custom pools with linear algorithm.
    9427  */
    9428  if(!canMakeOtherLost || canCreateNewBlock)
    9429  {
    9430  // 1. Search existing allocations. Try to allocate without making other allocations lost.
    9431  // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
    9432  for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex )
    9433  {
    9434  VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
    9435  VMA_ASSERT(pCurrBlock);
    9436  VmaAllocationRequest currRequest = {};
    9437  if(pCurrBlock->m_pMetadata->CreateAllocationRequest(
    9438  currentFrameIndex,
    9439  m_FrameInUseCount,
    9440  m_BufferImageGranularity,
    9441  size,
    9442  alignment,
    9443  isUpperAddress,
    9444  suballocType,
    9445  false, // canMakeOtherLost
    9446  &currRequest))
    9447  {
    9448  // Allocate from pCurrBlock.
    9449  VMA_ASSERT(currRequest.itemsToMakeLostCount == 0);
    9450 
    9451  if(mapped)
    9452  {
    9453  VkResult res = pCurrBlock->Map(m_hAllocator, 1, VMA_NULL);
    9454  if(res != VK_SUCCESS)
    9455  {
    9456  return res;
    9457  }
    9458  }
    9459 
    9460  // We no longer have an empty Allocation.
    9461  if(pCurrBlock->m_pMetadata->IsEmpty())
    9462  {
    9463  m_HasEmptyBlock = false;
    9464  }
    9465 
    9466  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9467  pCurrBlock->m_pMetadata->Alloc(currRequest, suballocType, size, isUpperAddress, *pAllocation);
    9468  (*pAllocation)->InitBlockAllocation(
    9469  hCurrentPool,
    9470  pCurrBlock,
    9471  currRequest.offset,
    9472  alignment,
    9473  size,
    9474  suballocType,
    9475  mapped,
    9476  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9477  VMA_HEAVY_ASSERT(pCurrBlock->Validate());
    9478  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex);
    9479  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9480  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9481  {
    9482  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9483  }
    9484  if(IsCorruptionDetectionEnabled())
    9485  {
    9486  VkResult res = pCurrBlock->WriteMagicValueAroundAllocation(m_hAllocator, currRequest.offset, size);
    9487  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9488  }
    9489  return VK_SUCCESS;
    9490  }
    9491  }
    9492 
    9493  // 2. Try to create new block.
    9494  if(canCreateNewBlock)
    9495  {
    9496  // Calculate optimal size for new block.
    9497  VkDeviceSize newBlockSize = m_PreferredBlockSize;
    9498  uint32_t newBlockSizeShift = 0;
    9499  const uint32_t NEW_BLOCK_SIZE_SHIFT_MAX = 3;
    9500 
    9501  // Allocating blocks of other sizes is allowed only in default pools.
    9502  // In custom pools block size is fixed.
    9503  if(m_IsCustomPool == false)
    9504  {
    9505  // Allocate 1/8, 1/4, 1/2 as first blocks.
    9506  const VkDeviceSize maxExistingBlockSize = CalcMaxBlockSize();
    9507  for(uint32_t i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i)
    9508  {
    9509  const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
    9510  if(smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= size * 2)
    9511  {
    9512  newBlockSize = smallerNewBlockSize;
    9513  ++newBlockSizeShift;
    9514  }
    9515  else
    9516  {
    9517  break;
    9518  }
    9519  }
    9520  }
    9521 
    9522  size_t newBlockIndex = 0;
    9523  VkResult res = CreateBlock(newBlockSize, &newBlockIndex);
    9524  // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize.
    9525  if(m_IsCustomPool == false)
    9526  {
    9527  while(res < 0 && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX)
    9528  {
    9529  const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
    9530  if(smallerNewBlockSize >= size)
    9531  {
    9532  newBlockSize = smallerNewBlockSize;
    9533  ++newBlockSizeShift;
    9534  res = CreateBlock(newBlockSize, &newBlockIndex);
    9535  }
    9536  else
    9537  {
    9538  break;
    9539  }
    9540  }
    9541  }
    9542 
    9543  if(res == VK_SUCCESS)
    9544  {
    9545  VmaDeviceMemoryBlock* const pBlock = m_Blocks[newBlockIndex];
    9546  VMA_ASSERT(pBlock->m_pMetadata->GetSize() >= size);
    9547 
    9548  if(mapped)
    9549  {
    9550  res = pBlock->Map(m_hAllocator, 1, VMA_NULL);
    9551  if(res != VK_SUCCESS)
    9552  {
    9553  return res;
    9554  }
    9555  }
    9556 
    9557  // Allocate from pBlock. Because it is empty, dstAllocRequest can be trivially filled.
    9558  VmaAllocationRequest allocRequest;
    9559  if(pBlock->m_pMetadata->CreateAllocationRequest(
    9560  currentFrameIndex,
    9561  m_FrameInUseCount,
    9562  m_BufferImageGranularity,
    9563  size,
    9564  alignment,
    9565  isUpperAddress,
    9566  suballocType,
    9567  false, // canMakeOtherLost
    9568  &allocRequest))
    9569  {
    9570  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9571  pBlock->m_pMetadata->Alloc(allocRequest, suballocType, size, isUpperAddress, *pAllocation);
    9572  (*pAllocation)->InitBlockAllocation(
    9573  hCurrentPool,
    9574  pBlock,
    9575  allocRequest.offset,
    9576  alignment,
    9577  size,
    9578  suballocType,
    9579  mapped,
    9580  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9581  VMA_HEAVY_ASSERT(pBlock->Validate());
    9582  VMA_DEBUG_LOG(" Created new allocation Size=%llu", allocInfo.allocationSize);
    9583  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9584  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9585  {
    9586  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9587  }
    9588  if(IsCorruptionDetectionEnabled())
    9589  {
    9590  res = pBlock->WriteMagicValueAroundAllocation(m_hAllocator, allocRequest.offset, size);
    9591  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9592  }
    9593  return VK_SUCCESS;
    9594  }
    9595  else
    9596  {
    9597  // Allocation from empty block failed, possibly due to VMA_DEBUG_MARGIN or alignment.
    9598  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9599  }
    9600  }
    9601  }
    9602  }
    9603 
    9604  // 3. Try to allocate from existing blocks with making other allocations lost.
    9605  if(canMakeOtherLost)
    9606  {
    9607  uint32_t tryIndex = 0;
    9608  for(; tryIndex < VMA_ALLOCATION_TRY_COUNT; ++tryIndex)
    9609  {
    9610  VmaDeviceMemoryBlock* pBestRequestBlock = VMA_NULL;
    9611  VmaAllocationRequest bestRequest = {};
    9612  VkDeviceSize bestRequestCost = VK_WHOLE_SIZE;
    9613 
    9614  // 1. Search existing allocations.
    9615  // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
    9616  for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex )
    9617  {
    9618  VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
    9619  VMA_ASSERT(pCurrBlock);
    9620  VmaAllocationRequest currRequest = {};
    9621  if(pCurrBlock->m_pMetadata->CreateAllocationRequest(
    9622  currentFrameIndex,
    9623  m_FrameInUseCount,
    9624  m_BufferImageGranularity,
    9625  size,
    9626  alignment,
    9627  (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0,
    9628  suballocType,
    9629  canMakeOtherLost,
    9630  &currRequest))
    9631  {
    9632  const VkDeviceSize currRequestCost = currRequest.CalcCost();
    9633  if(pBestRequestBlock == VMA_NULL ||
    9634  currRequestCost < bestRequestCost)
    9635  {
    9636  pBestRequestBlock = pCurrBlock;
    9637  bestRequest = currRequest;
    9638  bestRequestCost = currRequestCost;
    9639 
    9640  if(bestRequestCost == 0)
    9641  {
    9642  break;
    9643  }
    9644  }
    9645  }
    9646  }
    9647 
    9648  if(pBestRequestBlock != VMA_NULL)
    9649  {
    9650  if(mapped)
    9651  {
    9652  VkResult res = pBestRequestBlock->Map(m_hAllocator, 1, VMA_NULL);
    9653  if(res != VK_SUCCESS)
    9654  {
    9655  return res;
    9656  }
    9657  }
    9658 
    9659  if(pBestRequestBlock->m_pMetadata->MakeRequestedAllocationsLost(
    9660  currentFrameIndex,
    9661  m_FrameInUseCount,
    9662  &bestRequest))
    9663  {
    9664  // We no longer have an empty Allocation.
    9665  if(pBestRequestBlock->m_pMetadata->IsEmpty())
    9666  {
    9667  m_HasEmptyBlock = false;
    9668  }
    9669  // Allocate from this pBlock.
    9670  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9671  pBestRequestBlock->m_pMetadata->Alloc(bestRequest, suballocType, size, isUpperAddress, *pAllocation);
    9672  (*pAllocation)->InitBlockAllocation(
    9673  hCurrentPool,
    9674  pBestRequestBlock,
    9675  bestRequest.offset,
    9676  alignment,
    9677  size,
    9678  suballocType,
    9679  mapped,
    9680  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9681  VMA_HEAVY_ASSERT(pBestRequestBlock->Validate());
    9682  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex);
    9683  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9684  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9685  {
    9686  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9687  }
    9688  if(IsCorruptionDetectionEnabled())
    9689  {
    9690  VkResult res = pBestRequestBlock->WriteMagicValueAroundAllocation(m_hAllocator, bestRequest.offset, size);
    9691  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9692  }
    9693  return VK_SUCCESS;
    9694  }
    9695  // else: Some allocations must have been touched while we are here. Next try.
    9696  }
    9697  else
    9698  {
    9699  // Could not find place in any of the blocks - break outer loop.
    9700  break;
    9701  }
    9702  }
    9703  /* Maximum number of tries exceeded - a very unlike event when many other
    9704  threads are simultaneously touching allocations making it impossible to make
    9705  lost at the same time as we try to allocate. */
    9706  if(tryIndex == VMA_ALLOCATION_TRY_COUNT)
    9707  {
    9708  return VK_ERROR_TOO_MANY_OBJECTS;
    9709  }
    9710  }
    9711 
    9712  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9713 }
    9714 
    9715 void VmaBlockVector::Free(
    9716  VmaAllocation hAllocation)
    9717 {
    9718  VmaDeviceMemoryBlock* pBlockToDelete = VMA_NULL;
    9719 
    9720  // Scope for lock.
    9721  {
    9722  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9723 
    9724  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    9725 
    9726  if(IsCorruptionDetectionEnabled())
    9727  {
    9728  VkResult res = pBlock->ValidateMagicValueAroundAllocation(m_hAllocator, hAllocation->GetOffset(), hAllocation->GetSize());
    9729  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to validate magic value.");
    9730  }
    9731 
    9732  if(hAllocation->IsPersistentMap())
    9733  {
    9734  pBlock->Unmap(m_hAllocator, 1);
    9735  }
    9736 
    9737  pBlock->m_pMetadata->Free(hAllocation);
    9738  VMA_HEAVY_ASSERT(pBlock->Validate());
    9739 
    9740  VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", memTypeIndex);
    9741 
    9742  // pBlock became empty after this deallocation.
    9743  if(pBlock->m_pMetadata->IsEmpty())
    9744  {
    9745  // Already has empty Allocation. We don't want to have two, so delete this one.
    9746  if(m_HasEmptyBlock && m_Blocks.size() > m_MinBlockCount)
    9747  {
    9748  pBlockToDelete = pBlock;
    9749  Remove(pBlock);
    9750  }
    9751  // We now have first empty block.
    9752  else
    9753  {
    9754  m_HasEmptyBlock = true;
    9755  }
    9756  }
    9757  // pBlock didn't become empty, but we have another empty block - find and free that one.
    9758  // (This is optional, heuristics.)
    9759  else if(m_HasEmptyBlock)
    9760  {
    9761  VmaDeviceMemoryBlock* pLastBlock = m_Blocks.back();
    9762  if(pLastBlock->m_pMetadata->IsEmpty() && m_Blocks.size() > m_MinBlockCount)
    9763  {
    9764  pBlockToDelete = pLastBlock;
    9765  m_Blocks.pop_back();
    9766  m_HasEmptyBlock = false;
    9767  }
    9768  }
    9769 
    9770  IncrementallySortBlocks();
    9771  }
    9772 
    9773  // Destruction of a free Allocation. Deferred until this point, outside of mutex
    9774  // lock, for performance reason.
    9775  if(pBlockToDelete != VMA_NULL)
    9776  {
    9777  VMA_DEBUG_LOG(" Deleted empty allocation");
    9778  pBlockToDelete->Destroy(m_hAllocator);
    9779  vma_delete(m_hAllocator, pBlockToDelete);
    9780  }
    9781 }
    9782 
    9783 VkDeviceSize VmaBlockVector::CalcMaxBlockSize() const
    9784 {
    9785  VkDeviceSize result = 0;
    9786  for(size_t i = m_Blocks.size(); i--; )
    9787  {
    9788  result = VMA_MAX(result, m_Blocks[i]->m_pMetadata->GetSize());
    9789  if(result >= m_PreferredBlockSize)
    9790  {
    9791  break;
    9792  }
    9793  }
    9794  return result;
    9795 }
    9796 
    9797 void VmaBlockVector::Remove(VmaDeviceMemoryBlock* pBlock)
    9798 {
    9799  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    9800  {
    9801  if(m_Blocks[blockIndex] == pBlock)
    9802  {
    9803  VmaVectorRemove(m_Blocks, blockIndex);
    9804  return;
    9805  }
    9806  }
    9807  VMA_ASSERT(0);
    9808 }
    9809 
    9810 void VmaBlockVector::IncrementallySortBlocks()
    9811 {
    9812  // Bubble sort only until first swap.
    9813  for(size_t i = 1; i < m_Blocks.size(); ++i)
    9814  {
    9815  if(m_Blocks[i - 1]->m_pMetadata->GetSumFreeSize() > m_Blocks[i]->m_pMetadata->GetSumFreeSize())
    9816  {
    9817  VMA_SWAP(m_Blocks[i - 1], m_Blocks[i]);
    9818  return;
    9819  }
    9820  }
    9821 }
    9822 
    9823 VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex)
    9824 {
    9825  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
    9826  allocInfo.memoryTypeIndex = m_MemoryTypeIndex;
    9827  allocInfo.allocationSize = blockSize;
    9828  VkDeviceMemory mem = VK_NULL_HANDLE;
    9829  VkResult res = m_hAllocator->AllocateVulkanMemory(&allocInfo, &mem);
    9830  if(res < 0)
    9831  {
    9832  return res;
    9833  }
    9834 
    9835  // New VkDeviceMemory successfully created.
    9836 
    9837  // Create new Allocation for it.
    9838  VmaDeviceMemoryBlock* const pBlock = vma_new(m_hAllocator, VmaDeviceMemoryBlock)(m_hAllocator);
    9839  pBlock->Init(
    9840  m_hAllocator,
    9841  m_MemoryTypeIndex,
    9842  mem,
    9843  allocInfo.allocationSize,
    9844  m_NextBlockId++,
    9845  m_LinearAlgorithm);
    9846 
    9847  m_Blocks.push_back(pBlock);
    9848  if(pNewBlockIndex != VMA_NULL)
    9849  {
    9850  *pNewBlockIndex = m_Blocks.size() - 1;
    9851  }
    9852 
    9853  return VK_SUCCESS;
    9854 }
    9855 
    9856 #if VMA_STATS_STRING_ENABLED
    9857 
    9858 void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json)
    9859 {
    9860  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9861 
    9862  json.BeginObject();
    9863 
    9864  if(m_IsCustomPool)
    9865  {
    9866  json.WriteString("MemoryTypeIndex");
    9867  json.WriteNumber(m_MemoryTypeIndex);
    9868 
    9869  json.WriteString("BlockSize");
    9870  json.WriteNumber(m_PreferredBlockSize);
    9871 
    9872  json.WriteString("BlockCount");
    9873  json.BeginObject(true);
    9874  if(m_MinBlockCount > 0)
    9875  {
    9876  json.WriteString("Min");
    9877  json.WriteNumber((uint64_t)m_MinBlockCount);
    9878  }
    9879  if(m_MaxBlockCount < SIZE_MAX)
    9880  {
    9881  json.WriteString("Max");
    9882  json.WriteNumber((uint64_t)m_MaxBlockCount);
    9883  }
    9884  json.WriteString("Cur");
    9885  json.WriteNumber((uint64_t)m_Blocks.size());
    9886  json.EndObject();
    9887 
    9888  if(m_FrameInUseCount > 0)
    9889  {
    9890  json.WriteString("FrameInUseCount");
    9891  json.WriteNumber(m_FrameInUseCount);
    9892  }
    9893 
    9894  if(m_LinearAlgorithm)
    9895  {
    9896  json.WriteString("LinearAlgorithm");
    9897  json.WriteBool(true);
    9898  }
    9899  }
    9900  else
    9901  {
    9902  json.WriteString("PreferredBlockSize");
    9903  json.WriteNumber(m_PreferredBlockSize);
    9904  }
    9905 
    9906  json.WriteString("Blocks");
    9907  json.BeginObject();
    9908  for(size_t i = 0; i < m_Blocks.size(); ++i)
    9909  {
    9910  json.BeginString();
    9911  json.ContinueString(m_Blocks[i]->GetId());
    9912  json.EndString();
    9913 
    9914  m_Blocks[i]->m_pMetadata->PrintDetailedMap(json);
    9915  }
    9916  json.EndObject();
    9917 
    9918  json.EndObject();
    9919 }
    9920 
    9921 #endif // #if VMA_STATS_STRING_ENABLED
    9922 
    9923 VmaDefragmentator* VmaBlockVector::EnsureDefragmentator(
    9924  VmaAllocator hAllocator,
    9925  uint32_t currentFrameIndex)
    9926 {
    9927  if(m_pDefragmentator == VMA_NULL)
    9928  {
    9929  m_pDefragmentator = vma_new(m_hAllocator, VmaDefragmentator)(
    9930  hAllocator,
    9931  this,
    9932  currentFrameIndex);
    9933  }
    9934 
    9935  return m_pDefragmentator;
    9936 }
    9937 
    9938 VkResult VmaBlockVector::Defragment(
    9939  VmaDefragmentationStats* pDefragmentationStats,
    9940  VkDeviceSize& maxBytesToMove,
    9941  uint32_t& maxAllocationsToMove)
    9942 {
    9943  if(m_pDefragmentator == VMA_NULL)
    9944  {
    9945  return VK_SUCCESS;
    9946  }
    9947 
    9948  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9949 
    9950  // Defragment.
    9951  VkResult result = m_pDefragmentator->Defragment(maxBytesToMove, maxAllocationsToMove);
    9952 
    9953  // Accumulate statistics.
    9954  if(pDefragmentationStats != VMA_NULL)
    9955  {
    9956  const VkDeviceSize bytesMoved = m_pDefragmentator->GetBytesMoved();
    9957  const uint32_t allocationsMoved = m_pDefragmentator->GetAllocationsMoved();
    9958  pDefragmentationStats->bytesMoved += bytesMoved;
    9959  pDefragmentationStats->allocationsMoved += allocationsMoved;
    9960  VMA_ASSERT(bytesMoved <= maxBytesToMove);
    9961  VMA_ASSERT(allocationsMoved <= maxAllocationsToMove);
    9962  maxBytesToMove -= bytesMoved;
    9963  maxAllocationsToMove -= allocationsMoved;
    9964  }
    9965 
    9966  // Free empty blocks.
    9967  m_HasEmptyBlock = false;
    9968  for(size_t blockIndex = m_Blocks.size(); blockIndex--; )
    9969  {
    9970  VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex];
    9971  if(pBlock->m_pMetadata->IsEmpty())
    9972  {
    9973  if(m_Blocks.size() > m_MinBlockCount)
    9974  {
    9975  if(pDefragmentationStats != VMA_NULL)
    9976  {
    9977  ++pDefragmentationStats->deviceMemoryBlocksFreed;
    9978  pDefragmentationStats->bytesFreed += pBlock->m_pMetadata->GetSize();
    9979  }
    9980 
    9981  VmaVectorRemove(m_Blocks, blockIndex);
    9982  pBlock->Destroy(m_hAllocator);
    9983  vma_delete(m_hAllocator, pBlock);
    9984  }
    9985  else
    9986  {
    9987  m_HasEmptyBlock = true;
    9988  }
    9989  }
    9990  }
    9991 
    9992  return result;
    9993 }
    9994 
    9995 void VmaBlockVector::DestroyDefragmentator()
    9996 {
    9997  if(m_pDefragmentator != VMA_NULL)
    9998  {
    9999  vma_delete(m_hAllocator, m_pDefragmentator);
    10000  m_pDefragmentator = VMA_NULL;
    10001  }
    10002 }
    10003 
    10004 void VmaBlockVector::MakePoolAllocationsLost(
    10005  uint32_t currentFrameIndex,
    10006  size_t* pLostAllocationCount)
    10007 {
    10008  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10009  size_t lostAllocationCount = 0;
    10010  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10011  {
    10012  VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10013  VMA_ASSERT(pBlock);
    10014  lostAllocationCount += pBlock->m_pMetadata->MakeAllocationsLost(currentFrameIndex, m_FrameInUseCount);
    10015  }
    10016  if(pLostAllocationCount != VMA_NULL)
    10017  {
    10018  *pLostAllocationCount = lostAllocationCount;
    10019  }
    10020 }
    10021 
    10022 VkResult VmaBlockVector::CheckCorruption()
    10023 {
    10024  if(!IsCorruptionDetectionEnabled())
    10025  {
    10026  return VK_ERROR_FEATURE_NOT_PRESENT;
    10027  }
    10028 
    10029  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10030  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10031  {
    10032  VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10033  VMA_ASSERT(pBlock);
    10034  VkResult res = pBlock->CheckCorruption(m_hAllocator);
    10035  if(res != VK_SUCCESS)
    10036  {
    10037  return res;
    10038  }
    10039  }
    10040  return VK_SUCCESS;
    10041 }
    10042 
    10043 void VmaBlockVector::AddStats(VmaStats* pStats)
    10044 {
    10045  const uint32_t memTypeIndex = m_MemoryTypeIndex;
    10046  const uint32_t memHeapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(memTypeIndex);
    10047 
    10048  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10049 
    10050  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10051  {
    10052  const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10053  VMA_ASSERT(pBlock);
    10054  VMA_HEAVY_ASSERT(pBlock->Validate());
    10055  VmaStatInfo allocationStatInfo;
    10056  pBlock->m_pMetadata->CalcAllocationStatInfo(allocationStatInfo);
    10057  VmaAddStatInfo(pStats->total, allocationStatInfo);
    10058  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
    10059  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
    10060  }
    10061 }
    10062 
    10064 // VmaDefragmentator members definition
    10065 
    10066 VmaDefragmentator::VmaDefragmentator(
    10067  VmaAllocator hAllocator,
    10068  VmaBlockVector* pBlockVector,
    10069  uint32_t currentFrameIndex) :
    10070  m_hAllocator(hAllocator),
    10071  m_pBlockVector(pBlockVector),
    10072  m_CurrentFrameIndex(currentFrameIndex),
    10073  m_BytesMoved(0),
    10074  m_AllocationsMoved(0),
    10075  m_Allocations(VmaStlAllocator<AllocationInfo>(hAllocator->GetAllocationCallbacks())),
    10076  m_Blocks(VmaStlAllocator<BlockInfo*>(hAllocator->GetAllocationCallbacks()))
    10077 {
    10078  VMA_ASSERT(!pBlockVector->UsesLinearAlgorithm());
    10079 }
    10080 
    10081 VmaDefragmentator::~VmaDefragmentator()
    10082 {
    10083  for(size_t i = m_Blocks.size(); i--; )
    10084  {
    10085  vma_delete(m_hAllocator, m_Blocks[i]);
    10086  }
    10087 }
    10088 
    10089 void VmaDefragmentator::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged)
    10090 {
    10091  AllocationInfo allocInfo;
    10092  allocInfo.m_hAllocation = hAlloc;
    10093  allocInfo.m_pChanged = pChanged;
    10094  m_Allocations.push_back(allocInfo);
    10095 }
    10096 
    10097 VkResult VmaDefragmentator::BlockInfo::EnsureMapping(VmaAllocator hAllocator, void** ppMappedData)
    10098 {
    10099  // It has already been mapped for defragmentation.
    10100  if(m_pMappedDataForDefragmentation)
    10101  {
    10102  *ppMappedData = m_pMappedDataForDefragmentation;
    10103  return VK_SUCCESS;
    10104  }
    10105 
    10106  // It is originally mapped.
    10107  if(m_pBlock->GetMappedData())
    10108  {
    10109  *ppMappedData = m_pBlock->GetMappedData();
    10110  return VK_SUCCESS;
    10111  }
    10112 
    10113  // Map on first usage.
    10114  VkResult res = m_pBlock->Map(hAllocator, 1, &m_pMappedDataForDefragmentation);
    10115  *ppMappedData = m_pMappedDataForDefragmentation;
    10116  return res;
    10117 }
    10118 
    10119 void VmaDefragmentator::BlockInfo::Unmap(VmaAllocator hAllocator)
    10120 {
    10121  if(m_pMappedDataForDefragmentation != VMA_NULL)
    10122  {
    10123  m_pBlock->Unmap(hAllocator, 1);
    10124  }
    10125 }
    10126 
    10127 VkResult VmaDefragmentator::DefragmentRound(
    10128  VkDeviceSize maxBytesToMove,
    10129  uint32_t maxAllocationsToMove)
    10130 {
    10131  if(m_Blocks.empty())
    10132  {
    10133  return VK_SUCCESS;
    10134  }
    10135 
    10136  size_t srcBlockIndex = m_Blocks.size() - 1;
    10137  size_t srcAllocIndex = SIZE_MAX;
    10138  for(;;)
    10139  {
    10140  // 1. Find next allocation to move.
    10141  // 1.1. Start from last to first m_Blocks - they are sorted from most "destination" to most "source".
    10142  // 1.2. Then start from last to first m_Allocations - they are sorted from largest to smallest.
    10143  while(srcAllocIndex >= m_Blocks[srcBlockIndex]->m_Allocations.size())
    10144  {
    10145  if(m_Blocks[srcBlockIndex]->m_Allocations.empty())
    10146  {
    10147  // Finished: no more allocations to process.
    10148  if(srcBlockIndex == 0)
    10149  {
    10150  return VK_SUCCESS;
    10151  }
    10152  else
    10153  {
    10154  --srcBlockIndex;
    10155  srcAllocIndex = SIZE_MAX;
    10156  }
    10157  }
    10158  else
    10159  {
    10160  srcAllocIndex = m_Blocks[srcBlockIndex]->m_Allocations.size() - 1;
    10161  }
    10162  }
    10163 
    10164  BlockInfo* pSrcBlockInfo = m_Blocks[srcBlockIndex];
    10165  AllocationInfo& allocInfo = pSrcBlockInfo->m_Allocations[srcAllocIndex];
    10166 
    10167  const VkDeviceSize size = allocInfo.m_hAllocation->GetSize();
    10168  const VkDeviceSize srcOffset = allocInfo.m_hAllocation->GetOffset();
    10169  const VkDeviceSize alignment = allocInfo.m_hAllocation->GetAlignment();
    10170  const VmaSuballocationType suballocType = allocInfo.m_hAllocation->GetSuballocationType();
    10171 
    10172  // 2. Try to find new place for this allocation in preceding or current block.
    10173  for(size_t dstBlockIndex = 0; dstBlockIndex <= srcBlockIndex; ++dstBlockIndex)
    10174  {
    10175  BlockInfo* pDstBlockInfo = m_Blocks[dstBlockIndex];
    10176  VmaAllocationRequest dstAllocRequest;
    10177  if(pDstBlockInfo->m_pBlock->m_pMetadata->CreateAllocationRequest(
    10178  m_CurrentFrameIndex,
    10179  m_pBlockVector->GetFrameInUseCount(),
    10180  m_pBlockVector->GetBufferImageGranularity(),
    10181  size,
    10182  alignment,
    10183  false, // upperAddress
    10184  suballocType,
    10185  false, // canMakeOtherLost
    10186  &dstAllocRequest) &&
    10187  MoveMakesSense(
    10188  dstBlockIndex, dstAllocRequest.offset, srcBlockIndex, srcOffset))
    10189  {
    10190  VMA_ASSERT(dstAllocRequest.itemsToMakeLostCount == 0);
    10191 
    10192  // Reached limit on number of allocations or bytes to move.
    10193  if((m_AllocationsMoved + 1 > maxAllocationsToMove) ||
    10194  (m_BytesMoved + size > maxBytesToMove))
    10195  {
    10196  return VK_INCOMPLETE;
    10197  }
    10198 
    10199  void* pDstMappedData = VMA_NULL;
    10200  VkResult res = pDstBlockInfo->EnsureMapping(m_hAllocator, &pDstMappedData);
    10201  if(res != VK_SUCCESS)
    10202  {
    10203  return res;
    10204  }
    10205 
    10206  void* pSrcMappedData = VMA_NULL;
    10207  res = pSrcBlockInfo->EnsureMapping(m_hAllocator, &pSrcMappedData);
    10208  if(res != VK_SUCCESS)
    10209  {
    10210  return res;
    10211  }
    10212 
    10213  // THE PLACE WHERE ACTUAL DATA COPY HAPPENS.
    10214  memcpy(
    10215  reinterpret_cast<char*>(pDstMappedData) + dstAllocRequest.offset,
    10216  reinterpret_cast<char*>(pSrcMappedData) + srcOffset,
    10217  static_cast<size_t>(size));
    10218 
    10219  if(VMA_DEBUG_MARGIN > 0)
    10220  {
    10221  VmaWriteMagicValue(pDstMappedData, dstAllocRequest.offset - VMA_DEBUG_MARGIN);
    10222  VmaWriteMagicValue(pDstMappedData, dstAllocRequest.offset + size);
    10223  }
    10224 
    10225  pDstBlockInfo->m_pBlock->m_pMetadata->Alloc(
    10226  dstAllocRequest,
    10227  suballocType,
    10228  size,
    10229  false, // upperAddress
    10230  allocInfo.m_hAllocation);
    10231  pSrcBlockInfo->m_pBlock->m_pMetadata->FreeAtOffset(srcOffset);
    10232 
    10233  allocInfo.m_hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlockInfo->m_pBlock, dstAllocRequest.offset);
    10234 
    10235  if(allocInfo.m_pChanged != VMA_NULL)
    10236  {
    10237  *allocInfo.m_pChanged = VK_TRUE;
    10238  }
    10239 
    10240  ++m_AllocationsMoved;
    10241  m_BytesMoved += size;
    10242 
    10243  VmaVectorRemove(pSrcBlockInfo->m_Allocations, srcAllocIndex);
    10244 
    10245  break;
    10246  }
    10247  }
    10248 
    10249  // If not processed, this allocInfo remains in pBlockInfo->m_Allocations for next round.
    10250 
    10251  if(srcAllocIndex > 0)
    10252  {
    10253  --srcAllocIndex;
    10254  }
    10255  else
    10256  {
    10257  if(srcBlockIndex > 0)
    10258  {
    10259  --srcBlockIndex;
    10260  srcAllocIndex = SIZE_MAX;
    10261  }
    10262  else
    10263  {
    10264  return VK_SUCCESS;
    10265  }
    10266  }
    10267  }
    10268 }
    10269 
    10270 VkResult VmaDefragmentator::Defragment(
    10271  VkDeviceSize maxBytesToMove,
    10272  uint32_t maxAllocationsToMove)
    10273 {
    10274  if(m_Allocations.empty())
    10275  {
    10276  return VK_SUCCESS;
    10277  }
    10278 
    10279  // Create block info for each block.
    10280  const size_t blockCount = m_pBlockVector->m_Blocks.size();
    10281  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10282  {
    10283  BlockInfo* pBlockInfo = vma_new(m_hAllocator, BlockInfo)(m_hAllocator->GetAllocationCallbacks());
    10284  pBlockInfo->m_pBlock = m_pBlockVector->m_Blocks[blockIndex];
    10285  m_Blocks.push_back(pBlockInfo);
    10286  }
    10287 
    10288  // Sort them by m_pBlock pointer value.
    10289  VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockPointerLess());
    10290 
    10291  // Move allocation infos from m_Allocations to appropriate m_Blocks[memTypeIndex].m_Allocations.
    10292  for(size_t blockIndex = 0, allocCount = m_Allocations.size(); blockIndex < allocCount; ++blockIndex)
    10293  {
    10294  AllocationInfo& allocInfo = m_Allocations[blockIndex];
    10295  // Now as we are inside VmaBlockVector::m_Mutex, we can make final check if this allocation was not lost.
    10296  if(allocInfo.m_hAllocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)
    10297  {
    10298  VmaDeviceMemoryBlock* pBlock = allocInfo.m_hAllocation->GetBlock();
    10299  BlockInfoVector::iterator it = VmaBinaryFindFirstNotLess(m_Blocks.begin(), m_Blocks.end(), pBlock, BlockPointerLess());
    10300  if(it != m_Blocks.end() && (*it)->m_pBlock == pBlock)
    10301  {
    10302  (*it)->m_Allocations.push_back(allocInfo);
    10303  }
    10304  else
    10305  {
    10306  VMA_ASSERT(0);
    10307  }
    10308  }
    10309  }
    10310  m_Allocations.clear();
    10311 
    10312  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10313  {
    10314  BlockInfo* pBlockInfo = m_Blocks[blockIndex];
    10315  pBlockInfo->CalcHasNonMovableAllocations();
    10316  pBlockInfo->SortAllocationsBySizeDescecnding();
    10317  }
    10318 
    10319  // Sort m_Blocks this time by the main criterium, from most "destination" to most "source" blocks.
    10320  VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockInfoCompareMoveDestination());
    10321 
    10322  // Execute defragmentation rounds (the main part).
    10323  VkResult result = VK_SUCCESS;
    10324  for(size_t round = 0; (round < 2) && (result == VK_SUCCESS); ++round)
    10325  {
    10326  result = DefragmentRound(maxBytesToMove, maxAllocationsToMove);
    10327  }
    10328 
    10329  // Unmap blocks that were mapped for defragmentation.
    10330  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10331  {
    10332  m_Blocks[blockIndex]->Unmap(m_hAllocator);
    10333  }
    10334 
    10335  return result;
    10336 }
    10337 
    10338 bool VmaDefragmentator::MoveMakesSense(
    10339  size_t dstBlockIndex, VkDeviceSize dstOffset,
    10340  size_t srcBlockIndex, VkDeviceSize srcOffset)
    10341 {
    10342  if(dstBlockIndex < srcBlockIndex)
    10343  {
    10344  return true;
    10345  }
    10346  if(dstBlockIndex > srcBlockIndex)
    10347  {
    10348  return false;
    10349  }
    10350  if(dstOffset < srcOffset)
    10351  {
    10352  return true;
    10353  }
    10354  return false;
    10355 }
    10356 
    10358 // VmaRecorder
    10359 
    10360 #if VMA_RECORDING_ENABLED
    10361 
    10362 VmaRecorder::VmaRecorder() :
    10363  m_UseMutex(true),
    10364  m_Flags(0),
    10365  m_File(VMA_NULL),
    10366  m_Freq(INT64_MAX),
    10367  m_StartCounter(INT64_MAX)
    10368 {
    10369 }
    10370 
    10371 VkResult VmaRecorder::Init(const VmaRecordSettings& settings, bool useMutex)
    10372 {
    10373  m_UseMutex = useMutex;
    10374  m_Flags = settings.flags;
    10375 
    10376  QueryPerformanceFrequency((LARGE_INTEGER*)&m_Freq);
    10377  QueryPerformanceCounter((LARGE_INTEGER*)&m_StartCounter);
    10378 
    10379  // Open file for writing.
    10380  errno_t err = fopen_s(&m_File, settings.pFilePath, "wb");
    10381  if(err != 0)
    10382  {
    10383  return VK_ERROR_INITIALIZATION_FAILED;
    10384  }
    10385 
    10386  // Write header.
    10387  fprintf(m_File, "%s\n", "Vulkan Memory Allocator,Calls recording");
    10388  fprintf(m_File, "%s\n", "1,3");
    10389 
    10390  return VK_SUCCESS;
    10391 }
    10392 
    10393 VmaRecorder::~VmaRecorder()
    10394 {
    10395  if(m_File != VMA_NULL)
    10396  {
    10397  fclose(m_File);
    10398  }
    10399 }
    10400 
    10401 void VmaRecorder::RecordCreateAllocator(uint32_t frameIndex)
    10402 {
    10403  CallParams callParams;
    10404  GetBasicParams(callParams);
    10405 
    10406  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10407  fprintf(m_File, "%u,%.3f,%u,vmaCreateAllocator\n", callParams.threadId, callParams.time, frameIndex);
    10408  Flush();
    10409 }
    10410 
    10411 void VmaRecorder::RecordDestroyAllocator(uint32_t frameIndex)
    10412 {
    10413  CallParams callParams;
    10414  GetBasicParams(callParams);
    10415 
    10416  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10417  fprintf(m_File, "%u,%.3f,%u,vmaDestroyAllocator\n", callParams.threadId, callParams.time, frameIndex);
    10418  Flush();
    10419 }
    10420 
    10421 void VmaRecorder::RecordCreatePool(uint32_t frameIndex, const VmaPoolCreateInfo& createInfo, VmaPool pool)
    10422 {
    10423  CallParams callParams;
    10424  GetBasicParams(callParams);
    10425 
    10426  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10427  fprintf(m_File, "%u,%.3f,%u,vmaCreatePool,%u,%u,%llu,%llu,%llu,%u,%p\n", callParams.threadId, callParams.time, frameIndex,
    10428  createInfo.memoryTypeIndex,
    10429  createInfo.flags,
    10430  createInfo.blockSize,
    10431  createInfo.minBlockCount,
    10432  createInfo.maxBlockCount,
    10433  createInfo.frameInUseCount,
    10434  pool);
    10435  Flush();
    10436 }
    10437 
    10438 void VmaRecorder::RecordDestroyPool(uint32_t frameIndex, VmaPool pool)
    10439 {
    10440  CallParams callParams;
    10441  GetBasicParams(callParams);
    10442 
    10443  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10444  fprintf(m_File, "%u,%.3f,%u,vmaDestroyPool,%p\n", callParams.threadId, callParams.time, frameIndex,
    10445  pool);
    10446  Flush();
    10447 }
    10448 
    10449 void VmaRecorder::RecordAllocateMemory(uint32_t frameIndex,
    10450  const VkMemoryRequirements& vkMemReq,
    10451  const VmaAllocationCreateInfo& createInfo,
    10452  VmaAllocation allocation)
    10453 {
    10454  CallParams callParams;
    10455  GetBasicParams(callParams);
    10456 
    10457  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10458  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10459  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemory,%llu,%llu,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10460  vkMemReq.size,
    10461  vkMemReq.alignment,
    10462  vkMemReq.memoryTypeBits,
    10463  createInfo.flags,
    10464  createInfo.usage,
    10465  createInfo.requiredFlags,
    10466  createInfo.preferredFlags,
    10467  createInfo.memoryTypeBits,
    10468  createInfo.pool,
    10469  allocation,
    10470  userDataStr.GetString());
    10471  Flush();
    10472 }
    10473 
    10474 void VmaRecorder::RecordAllocateMemoryForBuffer(uint32_t frameIndex,
    10475  const VkMemoryRequirements& vkMemReq,
    10476  bool requiresDedicatedAllocation,
    10477  bool prefersDedicatedAllocation,
    10478  const VmaAllocationCreateInfo& createInfo,
    10479  VmaAllocation allocation)
    10480 {
    10481  CallParams callParams;
    10482  GetBasicParams(callParams);
    10483 
    10484  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10485  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10486  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForBuffer,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10487  vkMemReq.size,
    10488  vkMemReq.alignment,
    10489  vkMemReq.memoryTypeBits,
    10490  requiresDedicatedAllocation ? 1 : 0,
    10491  prefersDedicatedAllocation ? 1 : 0,
    10492  createInfo.flags,
    10493  createInfo.usage,
    10494  createInfo.requiredFlags,
    10495  createInfo.preferredFlags,
    10496  createInfo.memoryTypeBits,
    10497  createInfo.pool,
    10498  allocation,
    10499  userDataStr.GetString());
    10500  Flush();
    10501 }
    10502 
    10503 void VmaRecorder::RecordAllocateMemoryForImage(uint32_t frameIndex,
    10504  const VkMemoryRequirements& vkMemReq,
    10505  bool requiresDedicatedAllocation,
    10506  bool prefersDedicatedAllocation,
    10507  const VmaAllocationCreateInfo& createInfo,
    10508  VmaAllocation allocation)
    10509 {
    10510  CallParams callParams;
    10511  GetBasicParams(callParams);
    10512 
    10513  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10514  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10515  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForImage,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10516  vkMemReq.size,
    10517  vkMemReq.alignment,
    10518  vkMemReq.memoryTypeBits,
    10519  requiresDedicatedAllocation ? 1 : 0,
    10520  prefersDedicatedAllocation ? 1 : 0,
    10521  createInfo.flags,
    10522  createInfo.usage,
    10523  createInfo.requiredFlags,
    10524  createInfo.preferredFlags,
    10525  createInfo.memoryTypeBits,
    10526  createInfo.pool,
    10527  allocation,
    10528  userDataStr.GetString());
    10529  Flush();
    10530 }
    10531 
    10532 void VmaRecorder::RecordFreeMemory(uint32_t frameIndex,
    10533  VmaAllocation allocation)
    10534 {
    10535  CallParams callParams;
    10536  GetBasicParams(callParams);
    10537 
    10538  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10539  fprintf(m_File, "%u,%.3f,%u,vmaFreeMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10540  allocation);
    10541  Flush();
    10542 }
    10543 
    10544 void VmaRecorder::RecordSetAllocationUserData(uint32_t frameIndex,
    10545  VmaAllocation allocation,
    10546  const void* pUserData)
    10547 {
    10548  CallParams callParams;
    10549  GetBasicParams(callParams);
    10550 
    10551  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10552  UserDataString userDataStr(
    10553  allocation->IsUserDataString() ? VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT : 0,
    10554  pUserData);
    10555  fprintf(m_File, "%u,%.3f,%u,vmaSetAllocationUserData,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10556  allocation,
    10557  userDataStr.GetString());
    10558  Flush();
    10559 }
    10560 
    10561 void VmaRecorder::RecordCreateLostAllocation(uint32_t frameIndex,
    10562  VmaAllocation allocation)
    10563 {
    10564  CallParams callParams;
    10565  GetBasicParams(callParams);
    10566 
    10567  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10568  fprintf(m_File, "%u,%.3f,%u,vmaCreateLostAllocation,%p\n", callParams.threadId, callParams.time, frameIndex,
    10569  allocation);
    10570  Flush();
    10571 }
    10572 
    10573 void VmaRecorder::RecordMapMemory(uint32_t frameIndex,
    10574  VmaAllocation allocation)
    10575 {
    10576  CallParams callParams;
    10577  GetBasicParams(callParams);
    10578 
    10579  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10580  fprintf(m_File, "%u,%.3f,%u,vmaMapMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10581  allocation);
    10582  Flush();
    10583 }
    10584 
    10585 void VmaRecorder::RecordUnmapMemory(uint32_t frameIndex,
    10586  VmaAllocation allocation)
    10587 {
    10588  CallParams callParams;
    10589  GetBasicParams(callParams);
    10590 
    10591  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10592  fprintf(m_File, "%u,%.3f,%u,vmaUnmapMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10593  allocation);
    10594  Flush();
    10595 }
    10596 
    10597 void VmaRecorder::RecordFlushAllocation(uint32_t frameIndex,
    10598  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    10599 {
    10600  CallParams callParams;
    10601  GetBasicParams(callParams);
    10602 
    10603  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10604  fprintf(m_File, "%u,%.3f,%u,vmaFlushAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex,
    10605  allocation,
    10606  offset,
    10607  size);
    10608  Flush();
    10609 }
    10610 
    10611 void VmaRecorder::RecordInvalidateAllocation(uint32_t frameIndex,
    10612  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    10613 {
    10614  CallParams callParams;
    10615  GetBasicParams(callParams);
    10616 
    10617  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10618  fprintf(m_File, "%u,%.3f,%u,vmaInvalidateAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex,
    10619  allocation,
    10620  offset,
    10621  size);
    10622  Flush();
    10623 }
    10624 
    10625 void VmaRecorder::RecordCreateBuffer(uint32_t frameIndex,
    10626  const VkBufferCreateInfo& bufCreateInfo,
    10627  const VmaAllocationCreateInfo& allocCreateInfo,
    10628  VmaAllocation allocation)
    10629 {
    10630  CallParams callParams;
    10631  GetBasicParams(callParams);
    10632 
    10633  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10634  UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData);
    10635  fprintf(m_File, "%u,%.3f,%u,vmaCreateBuffer,%u,%llu,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10636  bufCreateInfo.flags,
    10637  bufCreateInfo.size,
    10638  bufCreateInfo.usage,
    10639  bufCreateInfo.sharingMode,
    10640  allocCreateInfo.flags,
    10641  allocCreateInfo.usage,
    10642  allocCreateInfo.requiredFlags,
    10643  allocCreateInfo.preferredFlags,
    10644  allocCreateInfo.memoryTypeBits,
    10645  allocCreateInfo.pool,
    10646  allocation,
    10647  userDataStr.GetString());
    10648  Flush();
    10649 }
    10650 
    10651 void VmaRecorder::RecordCreateImage(uint32_t frameIndex,
    10652  const VkImageCreateInfo& imageCreateInfo,
    10653  const VmaAllocationCreateInfo& allocCreateInfo,
    10654  VmaAllocation allocation)
    10655 {
    10656  CallParams callParams;
    10657  GetBasicParams(callParams);
    10658 
    10659  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10660  UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData);
    10661  fprintf(m_File, "%u,%.3f,%u,vmaCreateImage,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10662  imageCreateInfo.flags,
    10663  imageCreateInfo.imageType,
    10664  imageCreateInfo.format,
    10665  imageCreateInfo.extent.width,
    10666  imageCreateInfo.extent.height,
    10667  imageCreateInfo.extent.depth,
    10668  imageCreateInfo.mipLevels,
    10669  imageCreateInfo.arrayLayers,
    10670  imageCreateInfo.samples,
    10671  imageCreateInfo.tiling,
    10672  imageCreateInfo.usage,
    10673  imageCreateInfo.sharingMode,
    10674  imageCreateInfo.initialLayout,
    10675  allocCreateInfo.flags,
    10676  allocCreateInfo.usage,
    10677  allocCreateInfo.requiredFlags,
    10678  allocCreateInfo.preferredFlags,
    10679  allocCreateInfo.memoryTypeBits,
    10680  allocCreateInfo.pool,
    10681  allocation,
    10682  userDataStr.GetString());
    10683  Flush();
    10684 }
    10685 
    10686 void VmaRecorder::RecordDestroyBuffer(uint32_t frameIndex,
    10687  VmaAllocation allocation)
    10688 {
    10689  CallParams callParams;
    10690  GetBasicParams(callParams);
    10691 
    10692  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10693  fprintf(m_File, "%u,%.3f,%u,vmaDestroyBuffer,%p\n", callParams.threadId, callParams.time, frameIndex,
    10694  allocation);
    10695  Flush();
    10696 }
    10697 
    10698 void VmaRecorder::RecordDestroyImage(uint32_t frameIndex,
    10699  VmaAllocation allocation)
    10700 {
    10701  CallParams callParams;
    10702  GetBasicParams(callParams);
    10703 
    10704  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10705  fprintf(m_File, "%u,%.3f,%u,vmaDestroyImage,%p\n", callParams.threadId, callParams.time, frameIndex,
    10706  allocation);
    10707  Flush();
    10708 }
    10709 
    10710 void VmaRecorder::RecordTouchAllocation(uint32_t frameIndex,
    10711  VmaAllocation allocation)
    10712 {
    10713  CallParams callParams;
    10714  GetBasicParams(callParams);
    10715 
    10716  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10717  fprintf(m_File, "%u,%.3f,%u,vmaTouchAllocation,%p\n", callParams.threadId, callParams.time, frameIndex,
    10718  allocation);
    10719  Flush();
    10720 }
    10721 
    10722 void VmaRecorder::RecordGetAllocationInfo(uint32_t frameIndex,
    10723  VmaAllocation allocation)
    10724 {
    10725  CallParams callParams;
    10726  GetBasicParams(callParams);
    10727 
    10728  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10729  fprintf(m_File, "%u,%.3f,%u,vmaGetAllocationInfo,%p\n", callParams.threadId, callParams.time, frameIndex,
    10730  allocation);
    10731  Flush();
    10732 }
    10733 
    10734 void VmaRecorder::RecordMakePoolAllocationsLost(uint32_t frameIndex,
    10735  VmaPool pool)
    10736 {
    10737  CallParams callParams;
    10738  GetBasicParams(callParams);
    10739 
    10740  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10741  fprintf(m_File, "%u,%.3f,%u,vmaMakePoolAllocationsLost,%p\n", callParams.threadId, callParams.time, frameIndex,
    10742  pool);
    10743  Flush();
    10744 }
    10745 
    10746 VmaRecorder::UserDataString::UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData)
    10747 {
    10748  if(pUserData != VMA_NULL)
    10749  {
    10750  if((allocFlags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0)
    10751  {
    10752  m_Str = (const char*)pUserData;
    10753  }
    10754  else
    10755  {
    10756  sprintf_s(m_PtrStr, "%p", pUserData);
    10757  m_Str = m_PtrStr;
    10758  }
    10759  }
    10760  else
    10761  {
    10762  m_Str = "";
    10763  }
    10764 }
    10765 
    10766 void VmaRecorder::WriteConfiguration(
    10767  const VkPhysicalDeviceProperties& devProps,
    10768  const VkPhysicalDeviceMemoryProperties& memProps,
    10769  bool dedicatedAllocationExtensionEnabled)
    10770 {
    10771  fprintf(m_File, "Config,Begin\n");
    10772 
    10773  fprintf(m_File, "PhysicalDevice,apiVersion,%u\n", devProps.apiVersion);
    10774  fprintf(m_File, "PhysicalDevice,driverVersion,%u\n", devProps.driverVersion);
    10775  fprintf(m_File, "PhysicalDevice,vendorID,%u\n", devProps.vendorID);
    10776  fprintf(m_File, "PhysicalDevice,deviceID,%u\n", devProps.deviceID);
    10777  fprintf(m_File, "PhysicalDevice,deviceType,%u\n", devProps.deviceType);
    10778  fprintf(m_File, "PhysicalDevice,deviceName,%s\n", devProps.deviceName);
    10779 
    10780  fprintf(m_File, "PhysicalDeviceLimits,maxMemoryAllocationCount,%u\n", devProps.limits.maxMemoryAllocationCount);
    10781  fprintf(m_File, "PhysicalDeviceLimits,bufferImageGranularity,%llu\n", devProps.limits.bufferImageGranularity);
    10782  fprintf(m_File, "PhysicalDeviceLimits,nonCoherentAtomSize,%llu\n", devProps.limits.nonCoherentAtomSize);
    10783 
    10784  fprintf(m_File, "PhysicalDeviceMemory,HeapCount,%u\n", memProps.memoryHeapCount);
    10785  for(uint32_t i = 0; i < memProps.memoryHeapCount; ++i)
    10786  {
    10787  fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,size,%llu\n", i, memProps.memoryHeaps[i].size);
    10788  fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,flags,%u\n", i, memProps.memoryHeaps[i].flags);
    10789  }
    10790  fprintf(m_File, "PhysicalDeviceMemory,TypeCount,%u\n", memProps.memoryTypeCount);
    10791  for(uint32_t i = 0; i < memProps.memoryTypeCount; ++i)
    10792  {
    10793  fprintf(m_File, "PhysicalDeviceMemory,Type,%u,heapIndex,%u\n", i, memProps.memoryTypes[i].heapIndex);
    10794  fprintf(m_File, "PhysicalDeviceMemory,Type,%u,propertyFlags,%u\n", i, memProps.memoryTypes[i].propertyFlags);
    10795  }
    10796 
    10797  fprintf(m_File, "Extension,VK_KHR_dedicated_allocation,%u\n", dedicatedAllocationExtensionEnabled ? 1 : 0);
    10798 
    10799  fprintf(m_File, "Macro,VMA_DEBUG_ALWAYS_DEDICATED_MEMORY,%u\n", VMA_DEBUG_ALWAYS_DEDICATED_MEMORY ? 1 : 0);
    10800  fprintf(m_File, "Macro,VMA_DEBUG_ALIGNMENT,%llu\n", (VkDeviceSize)VMA_DEBUG_ALIGNMENT);
    10801  fprintf(m_File, "Macro,VMA_DEBUG_MARGIN,%llu\n", (VkDeviceSize)VMA_DEBUG_MARGIN);
    10802  fprintf(m_File, "Macro,VMA_DEBUG_INITIALIZE_ALLOCATIONS,%u\n", VMA_DEBUG_INITIALIZE_ALLOCATIONS ? 1 : 0);
    10803  fprintf(m_File, "Macro,VMA_DEBUG_DETECT_CORRUPTION,%u\n", VMA_DEBUG_DETECT_CORRUPTION ? 1 : 0);
    10804  fprintf(m_File, "Macro,VMA_DEBUG_GLOBAL_MUTEX,%u\n", VMA_DEBUG_GLOBAL_MUTEX ? 1 : 0);
    10805  fprintf(m_File, "Macro,VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY,%llu\n", (VkDeviceSize)VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY);
    10806  fprintf(m_File, "Macro,VMA_SMALL_HEAP_MAX_SIZE,%llu\n", (VkDeviceSize)VMA_SMALL_HEAP_MAX_SIZE);
    10807  fprintf(m_File, "Macro,VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE,%llu\n", (VkDeviceSize)VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
    10808 
    10809  fprintf(m_File, "Config,End\n");
    10810 }
    10811 
    10812 void VmaRecorder::GetBasicParams(CallParams& outParams)
    10813 {
    10814  outParams.threadId = GetCurrentThreadId();
    10815 
    10816  LARGE_INTEGER counter;
    10817  QueryPerformanceCounter(&counter);
    10818  outParams.time = (double)(counter.QuadPart - m_StartCounter) / (double)m_Freq;
    10819 }
    10820 
    10821 void VmaRecorder::Flush()
    10822 {
    10823  if((m_Flags & VMA_RECORD_FLUSH_AFTER_CALL_BIT) != 0)
    10824  {
    10825  fflush(m_File);
    10826  }
    10827 }
    10828 
    10829 #endif // #if VMA_RECORDING_ENABLED
    10830 
    10832 // VmaAllocator_T
    10833 
    10834 VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) :
    10835  m_UseMutex((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT) == 0),
    10836  m_UseKhrDedicatedAllocation((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0),
    10837  m_hDevice(pCreateInfo->device),
    10838  m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL),
    10839  m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ?
    10840  *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks),
    10841  m_PreferredLargeHeapBlockSize(0),
    10842  m_PhysicalDevice(pCreateInfo->physicalDevice),
    10843  m_CurrentFrameIndex(0),
    10844  m_Pools(VmaStlAllocator<VmaPool>(GetAllocationCallbacks())),
    10845  m_NextPoolId(0)
    10846 #if VMA_RECORDING_ENABLED
    10847  ,m_pRecorder(VMA_NULL)
    10848 #endif
    10849 {
    10850  if(VMA_DEBUG_DETECT_CORRUPTION)
    10851  {
    10852  // Needs to be multiply of uint32_t size because we are going to write VMA_CORRUPTION_DETECTION_MAGIC_VALUE to it.
    10853  VMA_ASSERT(VMA_DEBUG_MARGIN % sizeof(uint32_t) == 0);
    10854  }
    10855 
    10856  VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device);
    10857 
    10858 #if !(VMA_DEDICATED_ALLOCATION)
    10859  if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0)
    10860  {
    10861  VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT set but required extensions are disabled by preprocessor macros.");
    10862  }
    10863 #endif
    10864 
    10865  memset(&m_DeviceMemoryCallbacks, 0 ,sizeof(m_DeviceMemoryCallbacks));
    10866  memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties));
    10867  memset(&m_MemProps, 0, sizeof(m_MemProps));
    10868 
    10869  memset(&m_pBlockVectors, 0, sizeof(m_pBlockVectors));
    10870  memset(&m_pDedicatedAllocations, 0, sizeof(m_pDedicatedAllocations));
    10871 
    10872  for(uint32_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
    10873  {
    10874  m_HeapSizeLimit[i] = VK_WHOLE_SIZE;
    10875  }
    10876 
    10877  if(pCreateInfo->pDeviceMemoryCallbacks != VMA_NULL)
    10878  {
    10879  m_DeviceMemoryCallbacks.pfnAllocate = pCreateInfo->pDeviceMemoryCallbacks->pfnAllocate;
    10880  m_DeviceMemoryCallbacks.pfnFree = pCreateInfo->pDeviceMemoryCallbacks->pfnFree;
    10881  }
    10882 
    10883  ImportVulkanFunctions(pCreateInfo->pVulkanFunctions);
    10884 
    10885  (*m_VulkanFunctions.vkGetPhysicalDeviceProperties)(m_PhysicalDevice, &m_PhysicalDeviceProperties);
    10886  (*m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties)(m_PhysicalDevice, &m_MemProps);
    10887 
    10888  m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ?
    10889  pCreateInfo->preferredLargeHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
    10890 
    10891  if(pCreateInfo->pHeapSizeLimit != VMA_NULL)
    10892  {
    10893  for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex)
    10894  {
    10895  const VkDeviceSize limit = pCreateInfo->pHeapSizeLimit[heapIndex];
    10896  if(limit != VK_WHOLE_SIZE)
    10897  {
    10898  m_HeapSizeLimit[heapIndex] = limit;
    10899  if(limit < m_MemProps.memoryHeaps[heapIndex].size)
    10900  {
    10901  m_MemProps.memoryHeaps[heapIndex].size = limit;
    10902  }
    10903  }
    10904  }
    10905  }
    10906 
    10907  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    10908  {
    10909  const VkDeviceSize preferredBlockSize = CalcPreferredBlockSize(memTypeIndex);
    10910 
    10911  m_pBlockVectors[memTypeIndex] = vma_new(this, VmaBlockVector)(
    10912  this,
    10913  memTypeIndex,
    10914  preferredBlockSize,
    10915  0,
    10916  SIZE_MAX,
    10917  GetBufferImageGranularity(),
    10918  pCreateInfo->frameInUseCount,
    10919  false, // isCustomPool
    10920  false); // linearAlgorithm
    10921  // No need to call m_pBlockVectors[memTypeIndex][blockVectorTypeIndex]->CreateMinBlocks here,
    10922  // becase minBlockCount is 0.
    10923  m_pDedicatedAllocations[memTypeIndex] = vma_new(this, AllocationVectorType)(VmaStlAllocator<VmaAllocation>(GetAllocationCallbacks()));
    10924 
    10925  }
    10926 }
    10927 
    10928 VkResult VmaAllocator_T::Init(const VmaAllocatorCreateInfo* pCreateInfo)
    10929 {
    10930  VkResult res = VK_SUCCESS;
    10931 
    10932  if(pCreateInfo->pRecordSettings != VMA_NULL &&
    10933  !VmaStrIsEmpty(pCreateInfo->pRecordSettings->pFilePath))
    10934  {
    10935 #if VMA_RECORDING_ENABLED
    10936  m_pRecorder = vma_new(this, VmaRecorder)();
    10937  res = m_pRecorder->Init(*pCreateInfo->pRecordSettings, m_UseMutex);
    10938  if(res != VK_SUCCESS)
    10939  {
    10940  return res;
    10941  }
    10942  m_pRecorder->WriteConfiguration(
    10943  m_PhysicalDeviceProperties,
    10944  m_MemProps,
    10945  m_UseKhrDedicatedAllocation);
    10946  m_pRecorder->RecordCreateAllocator(GetCurrentFrameIndex());
    10947 #else
    10948  VMA_ASSERT(0 && "VmaAllocatorCreateInfo::pRecordSettings used, but not supported due to VMA_RECORDING_ENABLED not defined to 1.");
    10949  return VK_ERROR_FEATURE_NOT_PRESENT;
    10950 #endif
    10951  }
    10952 
    10953  return res;
    10954 }
    10955 
    10956 VmaAllocator_T::~VmaAllocator_T()
    10957 {
    10958 #if VMA_RECORDING_ENABLED
    10959  if(m_pRecorder != VMA_NULL)
    10960  {
    10961  m_pRecorder->RecordDestroyAllocator(GetCurrentFrameIndex());
    10962  vma_delete(this, m_pRecorder);
    10963  }
    10964 #endif
    10965 
    10966  VMA_ASSERT(m_Pools.empty());
    10967 
    10968  for(size_t i = GetMemoryTypeCount(); i--; )
    10969  {
    10970  vma_delete(this, m_pDedicatedAllocations[i]);
    10971  vma_delete(this, m_pBlockVectors[i]);
    10972  }
    10973 }
    10974 
    10975 void VmaAllocator_T::ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions)
    10976 {
    10977 #if VMA_STATIC_VULKAN_FUNCTIONS == 1
    10978  m_VulkanFunctions.vkGetPhysicalDeviceProperties = &vkGetPhysicalDeviceProperties;
    10979  m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties = &vkGetPhysicalDeviceMemoryProperties;
    10980  m_VulkanFunctions.vkAllocateMemory = &vkAllocateMemory;
    10981  m_VulkanFunctions.vkFreeMemory = &vkFreeMemory;
    10982  m_VulkanFunctions.vkMapMemory = &vkMapMemory;
    10983  m_VulkanFunctions.vkUnmapMemory = &vkUnmapMemory;
    10984  m_VulkanFunctions.vkFlushMappedMemoryRanges = &vkFlushMappedMemoryRanges;
    10985  m_VulkanFunctions.vkInvalidateMappedMemoryRanges = &vkInvalidateMappedMemoryRanges;
    10986  m_VulkanFunctions.vkBindBufferMemory = &vkBindBufferMemory;
    10987  m_VulkanFunctions.vkBindImageMemory = &vkBindImageMemory;
    10988  m_VulkanFunctions.vkGetBufferMemoryRequirements = &vkGetBufferMemoryRequirements;
    10989  m_VulkanFunctions.vkGetImageMemoryRequirements = &vkGetImageMemoryRequirements;
    10990  m_VulkanFunctions.vkCreateBuffer = &vkCreateBuffer;
    10991  m_VulkanFunctions.vkDestroyBuffer = &vkDestroyBuffer;
    10992  m_VulkanFunctions.vkCreateImage = &vkCreateImage;
    10993  m_VulkanFunctions.vkDestroyImage = &vkDestroyImage;
    10994 #if VMA_DEDICATED_ALLOCATION
    10995  if(m_UseKhrDedicatedAllocation)
    10996  {
    10997  m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR =
    10998  (PFN_vkGetBufferMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetBufferMemoryRequirements2KHR");
    10999  m_VulkanFunctions.vkGetImageMemoryRequirements2KHR =
    11000  (PFN_vkGetImageMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetImageMemoryRequirements2KHR");
    11001  }
    11002 #endif // #if VMA_DEDICATED_ALLOCATION
    11003 #endif // #if VMA_STATIC_VULKAN_FUNCTIONS == 1
    11004 
    11005 #define VMA_COPY_IF_NOT_NULL(funcName) \
    11006  if(pVulkanFunctions->funcName != VMA_NULL) m_VulkanFunctions.funcName = pVulkanFunctions->funcName;
    11007 
    11008  if(pVulkanFunctions != VMA_NULL)
    11009  {
    11010  VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceProperties);
    11011  VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties);
    11012  VMA_COPY_IF_NOT_NULL(vkAllocateMemory);
    11013  VMA_COPY_IF_NOT_NULL(vkFreeMemory);
    11014  VMA_COPY_IF_NOT_NULL(vkMapMemory);
    11015  VMA_COPY_IF_NOT_NULL(vkUnmapMemory);
    11016  VMA_COPY_IF_NOT_NULL(vkFlushMappedMemoryRanges);
    11017  VMA_COPY_IF_NOT_NULL(vkInvalidateMappedMemoryRanges);
    11018  VMA_COPY_IF_NOT_NULL(vkBindBufferMemory);
    11019  VMA_COPY_IF_NOT_NULL(vkBindImageMemory);
    11020  VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements);
    11021  VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements);
    11022  VMA_COPY_IF_NOT_NULL(vkCreateBuffer);
    11023  VMA_COPY_IF_NOT_NULL(vkDestroyBuffer);
    11024  VMA_COPY_IF_NOT_NULL(vkCreateImage);
    11025  VMA_COPY_IF_NOT_NULL(vkDestroyImage);
    11026 #if VMA_DEDICATED_ALLOCATION
    11027  VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements2KHR);
    11028  VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements2KHR);
    11029 #endif
    11030  }
    11031 
    11032 #undef VMA_COPY_IF_NOT_NULL
    11033 
    11034  // If these asserts are hit, you must either #define VMA_STATIC_VULKAN_FUNCTIONS 1
    11035  // or pass valid pointers as VmaAllocatorCreateInfo::pVulkanFunctions.
    11036  VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceProperties != VMA_NULL);
    11037  VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties != VMA_NULL);
    11038  VMA_ASSERT(m_VulkanFunctions.vkAllocateMemory != VMA_NULL);
    11039  VMA_ASSERT(m_VulkanFunctions.vkFreeMemory != VMA_NULL);
    11040  VMA_ASSERT(m_VulkanFunctions.vkMapMemory != VMA_NULL);
    11041  VMA_ASSERT(m_VulkanFunctions.vkUnmapMemory != VMA_NULL);
    11042  VMA_ASSERT(m_VulkanFunctions.vkFlushMappedMemoryRanges != VMA_NULL);
    11043  VMA_ASSERT(m_VulkanFunctions.vkInvalidateMappedMemoryRanges != VMA_NULL);
    11044  VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory != VMA_NULL);
    11045  VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory != VMA_NULL);
    11046  VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements != VMA_NULL);
    11047  VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements != VMA_NULL);
    11048  VMA_ASSERT(m_VulkanFunctions.vkCreateBuffer != VMA_NULL);
    11049  VMA_ASSERT(m_VulkanFunctions.vkDestroyBuffer != VMA_NULL);
    11050  VMA_ASSERT(m_VulkanFunctions.vkCreateImage != VMA_NULL);
    11051  VMA_ASSERT(m_VulkanFunctions.vkDestroyImage != VMA_NULL);
    11052 #if VMA_DEDICATED_ALLOCATION
    11053  if(m_UseKhrDedicatedAllocation)
    11054  {
    11055  VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR != VMA_NULL);
    11056  VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements2KHR != VMA_NULL);
    11057  }
    11058 #endif
    11059 }
    11060 
    11061 VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex)
    11062 {
    11063  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
    11064  const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size;
    11065  const bool isSmallHeap = heapSize <= VMA_SMALL_HEAP_MAX_SIZE;
    11066  return isSmallHeap ? (heapSize / 8) : m_PreferredLargeHeapBlockSize;
    11067 }
    11068 
    11069 VkResult VmaAllocator_T::AllocateMemoryOfType(
    11070  VkDeviceSize size,
    11071  VkDeviceSize alignment,
    11072  bool dedicatedAllocation,
    11073  VkBuffer dedicatedBuffer,
    11074  VkImage dedicatedImage,
    11075  const VmaAllocationCreateInfo& createInfo,
    11076  uint32_t memTypeIndex,
    11077  VmaSuballocationType suballocType,
    11078  VmaAllocation* pAllocation)
    11079 {
    11080  VMA_ASSERT(pAllocation != VMA_NULL);
    11081  VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, Size=%llu", memTypeIndex, vkMemReq.size);
    11082 
    11083  VmaAllocationCreateInfo finalCreateInfo = createInfo;
    11084 
    11085  // If memory type is not HOST_VISIBLE, disable MAPPED.
    11086  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 &&
    11087  (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    11088  {
    11089  finalCreateInfo.flags &= ~VMA_ALLOCATION_CREATE_MAPPED_BIT;
    11090  }
    11091 
    11092  VmaBlockVector* const blockVector = m_pBlockVectors[memTypeIndex];
    11093  VMA_ASSERT(blockVector);
    11094 
    11095  const VkDeviceSize preferredBlockSize = blockVector->GetPreferredBlockSize();
    11096  bool preferDedicatedMemory =
    11097  VMA_DEBUG_ALWAYS_DEDICATED_MEMORY ||
    11098  dedicatedAllocation ||
    11099  // Heuristics: Allocate dedicated memory if requested size if greater than half of preferred block size.
    11100  size > preferredBlockSize / 2;
    11101 
    11102  if(preferDedicatedMemory &&
    11103  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0 &&
    11104  finalCreateInfo.pool == VK_NULL_HANDLE)
    11105  {
    11106  finalCreateInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
    11107  }
    11108 
    11109  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0)
    11110  {
    11111  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11112  {
    11113  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11114  }
    11115  else
    11116  {
    11117  return AllocateDedicatedMemory(
    11118  size,
    11119  suballocType,
    11120  memTypeIndex,
    11121  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
    11122  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
    11123  finalCreateInfo.pUserData,
    11124  dedicatedBuffer,
    11125  dedicatedImage,
    11126  pAllocation);
    11127  }
    11128  }
    11129  else
    11130  {
    11131  VkResult res = blockVector->Allocate(
    11132  VK_NULL_HANDLE, // hCurrentPool
    11133  m_CurrentFrameIndex.load(),
    11134  size,
    11135  alignment,
    11136  finalCreateInfo,
    11137  suballocType,
    11138  pAllocation);
    11139  if(res == VK_SUCCESS)
    11140  {
    11141  return res;
    11142  }
    11143 
    11144  // 5. Try dedicated memory.
    11145  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11146  {
    11147  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11148  }
    11149  else
    11150  {
    11151  res = AllocateDedicatedMemory(
    11152  size,
    11153  suballocType,
    11154  memTypeIndex,
    11155  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
    11156  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
    11157  finalCreateInfo.pUserData,
    11158  dedicatedBuffer,
    11159  dedicatedImage,
    11160  pAllocation);
    11161  if(res == VK_SUCCESS)
    11162  {
    11163  // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here.
    11164  VMA_DEBUG_LOG(" Allocated as DedicatedMemory");
    11165  return VK_SUCCESS;
    11166  }
    11167  else
    11168  {
    11169  // Everything failed: Return error code.
    11170  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
    11171  return res;
    11172  }
    11173  }
    11174  }
    11175 }
    11176 
    11177 VkResult VmaAllocator_T::AllocateDedicatedMemory(
    11178  VkDeviceSize size,
    11179  VmaSuballocationType suballocType,
    11180  uint32_t memTypeIndex,
    11181  bool map,
    11182  bool isUserDataString,
    11183  void* pUserData,
    11184  VkBuffer dedicatedBuffer,
    11185  VkImage dedicatedImage,
    11186  VmaAllocation* pAllocation)
    11187 {
    11188  VMA_ASSERT(pAllocation);
    11189 
    11190  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
    11191  allocInfo.memoryTypeIndex = memTypeIndex;
    11192  allocInfo.allocationSize = size;
    11193 
    11194 #if VMA_DEDICATED_ALLOCATION
    11195  VkMemoryDedicatedAllocateInfoKHR dedicatedAllocInfo = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO_KHR };
    11196  if(m_UseKhrDedicatedAllocation)
    11197  {
    11198  if(dedicatedBuffer != VK_NULL_HANDLE)
    11199  {
    11200  VMA_ASSERT(dedicatedImage == VK_NULL_HANDLE);
    11201  dedicatedAllocInfo.buffer = dedicatedBuffer;
    11202  allocInfo.pNext = &dedicatedAllocInfo;
    11203  }
    11204  else if(dedicatedImage != VK_NULL_HANDLE)
    11205  {
    11206  dedicatedAllocInfo.image = dedicatedImage;
    11207  allocInfo.pNext = &dedicatedAllocInfo;
    11208  }
    11209  }
    11210 #endif // #if VMA_DEDICATED_ALLOCATION
    11211 
    11212  // Allocate VkDeviceMemory.
    11213  VkDeviceMemory hMemory = VK_NULL_HANDLE;
    11214  VkResult res = AllocateVulkanMemory(&allocInfo, &hMemory);
    11215  if(res < 0)
    11216  {
    11217  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
    11218  return res;
    11219  }
    11220 
    11221  void* pMappedData = VMA_NULL;
    11222  if(map)
    11223  {
    11224  res = (*m_VulkanFunctions.vkMapMemory)(
    11225  m_hDevice,
    11226  hMemory,
    11227  0,
    11228  VK_WHOLE_SIZE,
    11229  0,
    11230  &pMappedData);
    11231  if(res < 0)
    11232  {
    11233  VMA_DEBUG_LOG(" vkMapMemory FAILED");
    11234  FreeVulkanMemory(memTypeIndex, size, hMemory);
    11235  return res;
    11236  }
    11237  }
    11238 
    11239  *pAllocation = vma_new(this, VmaAllocation_T)(m_CurrentFrameIndex.load(), isUserDataString);
    11240  (*pAllocation)->InitDedicatedAllocation(memTypeIndex, hMemory, suballocType, pMappedData, size);
    11241  (*pAllocation)->SetUserData(this, pUserData);
    11242  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    11243  {
    11244  FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    11245  }
    11246 
    11247  // Register it in m_pDedicatedAllocations.
    11248  {
    11249  VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    11250  AllocationVectorType* pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex];
    11251  VMA_ASSERT(pDedicatedAllocations);
    11252  VmaVectorInsertSorted<VmaPointerLess>(*pDedicatedAllocations, *pAllocation);
    11253  }
    11254 
    11255  VMA_DEBUG_LOG(" Allocated DedicatedMemory MemoryTypeIndex=#%u", memTypeIndex);
    11256 
    11257  return VK_SUCCESS;
    11258 }
    11259 
    11260 void VmaAllocator_T::GetBufferMemoryRequirements(
    11261  VkBuffer hBuffer,
    11262  VkMemoryRequirements& memReq,
    11263  bool& requiresDedicatedAllocation,
    11264  bool& prefersDedicatedAllocation) const
    11265 {
    11266 #if VMA_DEDICATED_ALLOCATION
    11267  if(m_UseKhrDedicatedAllocation)
    11268  {
    11269  VkBufferMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2_KHR };
    11270  memReqInfo.buffer = hBuffer;
    11271 
    11272  VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
    11273 
    11274  VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
    11275  memReq2.pNext = &memDedicatedReq;
    11276 
    11277  (*m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
    11278 
    11279  memReq = memReq2.memoryRequirements;
    11280  requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
    11281  prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE);
    11282  }
    11283  else
    11284 #endif // #if VMA_DEDICATED_ALLOCATION
    11285  {
    11286  (*m_VulkanFunctions.vkGetBufferMemoryRequirements)(m_hDevice, hBuffer, &memReq);
    11287  requiresDedicatedAllocation = false;
    11288  prefersDedicatedAllocation = false;
    11289  }
    11290 }
    11291 
    11292 void VmaAllocator_T::GetImageMemoryRequirements(
    11293  VkImage hImage,
    11294  VkMemoryRequirements& memReq,
    11295  bool& requiresDedicatedAllocation,
    11296  bool& prefersDedicatedAllocation) const
    11297 {
    11298 #if VMA_DEDICATED_ALLOCATION
    11299  if(m_UseKhrDedicatedAllocation)
    11300  {
    11301  VkImageMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2_KHR };
    11302  memReqInfo.image = hImage;
    11303 
    11304  VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
    11305 
    11306  VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
    11307  memReq2.pNext = &memDedicatedReq;
    11308 
    11309  (*m_VulkanFunctions.vkGetImageMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
    11310 
    11311  memReq = memReq2.memoryRequirements;
    11312  requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
    11313  prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE);
    11314  }
    11315  else
    11316 #endif // #if VMA_DEDICATED_ALLOCATION
    11317  {
    11318  (*m_VulkanFunctions.vkGetImageMemoryRequirements)(m_hDevice, hImage, &memReq);
    11319  requiresDedicatedAllocation = false;
    11320  prefersDedicatedAllocation = false;
    11321  }
    11322 }
    11323 
    11324 VkResult VmaAllocator_T::AllocateMemory(
    11325  const VkMemoryRequirements& vkMemReq,
    11326  bool requiresDedicatedAllocation,
    11327  bool prefersDedicatedAllocation,
    11328  VkBuffer dedicatedBuffer,
    11329  VkImage dedicatedImage,
    11330  const VmaAllocationCreateInfo& createInfo,
    11331  VmaSuballocationType suballocType,
    11332  VmaAllocation* pAllocation)
    11333 {
    11334  if((createInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0 &&
    11335  (createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11336  {
    11337  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT together with VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT makes no sense.");
    11338  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11339  }
    11340  if((createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 &&
    11341  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0)
    11342  {
    11343  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_MAPPED_BIT together with VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT is invalid.");
    11344  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11345  }
    11346  if(requiresDedicatedAllocation)
    11347  {
    11348  if((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11349  {
    11350  VMA_ASSERT(0 && "VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT specified while dedicated allocation is required.");
    11351  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11352  }
    11353  if(createInfo.pool != VK_NULL_HANDLE)
    11354  {
    11355  VMA_ASSERT(0 && "Pool specified while dedicated allocation is required.");
    11356  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11357  }
    11358  }
    11359  if((createInfo.pool != VK_NULL_HANDLE) &&
    11360  ((createInfo.flags & (VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT)) != 0))
    11361  {
    11362  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT when pool != null is invalid.");
    11363  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11364  }
    11365 
    11366  if(createInfo.pool != VK_NULL_HANDLE)
    11367  {
    11368  const VkDeviceSize alignmentForPool = VMA_MAX(
    11369  vkMemReq.alignment,
    11370  GetMemoryTypeMinAlignment(createInfo.pool->m_BlockVector.GetMemoryTypeIndex()));
    11371  return createInfo.pool->m_BlockVector.Allocate(
    11372  createInfo.pool,
    11373  m_CurrentFrameIndex.load(),
    11374  vkMemReq.size,
    11375  alignmentForPool,
    11376  createInfo,
    11377  suballocType,
    11378  pAllocation);
    11379  }
    11380  else
    11381  {
    11382  // Bit mask of memory Vulkan types acceptable for this allocation.
    11383  uint32_t memoryTypeBits = vkMemReq.memoryTypeBits;
    11384  uint32_t memTypeIndex = UINT32_MAX;
    11385  VkResult res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &createInfo, &memTypeIndex);
    11386  if(res == VK_SUCCESS)
    11387  {
    11388  VkDeviceSize alignmentForMemType = VMA_MAX(
    11389  vkMemReq.alignment,
    11390  GetMemoryTypeMinAlignment(memTypeIndex));
    11391 
    11392  res = AllocateMemoryOfType(
    11393  vkMemReq.size,
    11394  alignmentForMemType,
    11395  requiresDedicatedAllocation || prefersDedicatedAllocation,
    11396  dedicatedBuffer,
    11397  dedicatedImage,
    11398  createInfo,
    11399  memTypeIndex,
    11400  suballocType,
    11401  pAllocation);
    11402  // Succeeded on first try.
    11403  if(res == VK_SUCCESS)
    11404  {
    11405  return res;
    11406  }
    11407  // Allocation from this memory type failed. Try other compatible memory types.
    11408  else
    11409  {
    11410  for(;;)
    11411  {
    11412  // Remove old memTypeIndex from list of possibilities.
    11413  memoryTypeBits &= ~(1u << memTypeIndex);
    11414  // Find alternative memTypeIndex.
    11415  res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &createInfo, &memTypeIndex);
    11416  if(res == VK_SUCCESS)
    11417  {
    11418  alignmentForMemType = VMA_MAX(
    11419  vkMemReq.alignment,
    11420  GetMemoryTypeMinAlignment(memTypeIndex));
    11421 
    11422  res = AllocateMemoryOfType(
    11423  vkMemReq.size,
    11424  alignmentForMemType,
    11425  requiresDedicatedAllocation || prefersDedicatedAllocation,
    11426  dedicatedBuffer,
    11427  dedicatedImage,
    11428  createInfo,
    11429  memTypeIndex,
    11430  suballocType,
    11431  pAllocation);
    11432  // Allocation from this alternative memory type succeeded.
    11433  if(res == VK_SUCCESS)
    11434  {
    11435  return res;
    11436  }
    11437  // else: Allocation from this memory type failed. Try next one - next loop iteration.
    11438  }
    11439  // No other matching memory type index could be found.
    11440  else
    11441  {
    11442  // Not returning res, which is VK_ERROR_FEATURE_NOT_PRESENT, because we already failed to allocate once.
    11443  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11444  }
    11445  }
    11446  }
    11447  }
    11448  // Can't find any single memory type maching requirements. res is VK_ERROR_FEATURE_NOT_PRESENT.
    11449  else
    11450  return res;
    11451  }
    11452 }
    11453 
    11454 void VmaAllocator_T::FreeMemory(const VmaAllocation allocation)
    11455 {
    11456  VMA_ASSERT(allocation);
    11457 
    11458  if(allocation->CanBecomeLost() == false ||
    11459  allocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)
    11460  {
    11461  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    11462  {
    11463  FillAllocation(allocation, VMA_ALLOCATION_FILL_PATTERN_DESTROYED);
    11464  }
    11465 
    11466  switch(allocation->GetType())
    11467  {
    11468  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    11469  {
    11470  VmaBlockVector* pBlockVector = VMA_NULL;
    11471  VmaPool hPool = allocation->GetPool();
    11472  if(hPool != VK_NULL_HANDLE)
    11473  {
    11474  pBlockVector = &hPool->m_BlockVector;
    11475  }
    11476  else
    11477  {
    11478  const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
    11479  pBlockVector = m_pBlockVectors[memTypeIndex];
    11480  }
    11481  pBlockVector->Free(allocation);
    11482  }
    11483  break;
    11484  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    11485  FreeDedicatedMemory(allocation);
    11486  break;
    11487  default:
    11488  VMA_ASSERT(0);
    11489  }
    11490  }
    11491 
    11492  allocation->SetUserData(this, VMA_NULL);
    11493  vma_delete(this, allocation);
    11494 }
    11495 
    11496 void VmaAllocator_T::CalculateStats(VmaStats* pStats)
    11497 {
    11498  // Initialize.
    11499  InitStatInfo(pStats->total);
    11500  for(size_t i = 0; i < VK_MAX_MEMORY_TYPES; ++i)
    11501  InitStatInfo(pStats->memoryType[i]);
    11502  for(size_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
    11503  InitStatInfo(pStats->memoryHeap[i]);
    11504 
    11505  // Process default pools.
    11506  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11507  {
    11508  VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
    11509  VMA_ASSERT(pBlockVector);
    11510  pBlockVector->AddStats(pStats);
    11511  }
    11512 
    11513  // Process custom pools.
    11514  {
    11515  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11516  for(size_t poolIndex = 0, poolCount = m_Pools.size(); poolIndex < poolCount; ++poolIndex)
    11517  {
    11518  m_Pools[poolIndex]->m_BlockVector.AddStats(pStats);
    11519  }
    11520  }
    11521 
    11522  // Process dedicated allocations.
    11523  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11524  {
    11525  const uint32_t memHeapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
    11526  VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    11527  AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex];
    11528  VMA_ASSERT(pDedicatedAllocVector);
    11529  for(size_t allocIndex = 0, allocCount = pDedicatedAllocVector->size(); allocIndex < allocCount; ++allocIndex)
    11530  {
    11531  VmaStatInfo allocationStatInfo;
    11532  (*pDedicatedAllocVector)[allocIndex]->DedicatedAllocCalcStatsInfo(allocationStatInfo);
    11533  VmaAddStatInfo(pStats->total, allocationStatInfo);
    11534  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
    11535  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
    11536  }
    11537  }
    11538 
    11539  // Postprocess.
    11540  VmaPostprocessCalcStatInfo(pStats->total);
    11541  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
    11542  VmaPostprocessCalcStatInfo(pStats->memoryType[i]);
    11543  for(size_t i = 0; i < GetMemoryHeapCount(); ++i)
    11544  VmaPostprocessCalcStatInfo(pStats->memoryHeap[i]);
    11545 }
    11546 
    11547 static const uint32_t VMA_VENDOR_ID_AMD = 4098;
    11548 
    11549 VkResult VmaAllocator_T::Defragment(
    11550  VmaAllocation* pAllocations,
    11551  size_t allocationCount,
    11552  VkBool32* pAllocationsChanged,
    11553  const VmaDefragmentationInfo* pDefragmentationInfo,
    11554  VmaDefragmentationStats* pDefragmentationStats)
    11555 {
    11556  if(pAllocationsChanged != VMA_NULL)
    11557  {
    11558  memset(pAllocationsChanged, 0, sizeof(*pAllocationsChanged));
    11559  }
    11560  if(pDefragmentationStats != VMA_NULL)
    11561  {
    11562  memset(pDefragmentationStats, 0, sizeof(*pDefragmentationStats));
    11563  }
    11564 
    11565  const uint32_t currentFrameIndex = m_CurrentFrameIndex.load();
    11566 
    11567  VmaMutexLock poolsLock(m_PoolsMutex, m_UseMutex);
    11568 
    11569  const size_t poolCount = m_Pools.size();
    11570 
    11571  // Dispatch pAllocations among defragmentators. Create them in BlockVectors when necessary.
    11572  for(size_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
    11573  {
    11574  VmaAllocation hAlloc = pAllocations[allocIndex];
    11575  VMA_ASSERT(hAlloc);
    11576  const uint32_t memTypeIndex = hAlloc->GetMemoryTypeIndex();
    11577  // DedicatedAlloc cannot be defragmented.
    11578  const VkMemoryPropertyFlags requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    11579  if((hAlloc->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK) &&
    11580  // Only HOST_VISIBLE and HOST_COHERENT memory types can be defragmented.
    11581  ((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags) &&
    11582  // Lost allocation cannot be defragmented.
    11583  (hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST))
    11584  {
    11585  VmaBlockVector* pAllocBlockVector = VMA_NULL;
    11586 
    11587  const VmaPool hAllocPool = hAlloc->GetPool();
    11588  // This allocation belongs to custom pool.
    11589  if(hAllocPool != VK_NULL_HANDLE)
    11590  {
    11591  // Pools with linear algorithm are not defragmented.
    11592  if(!hAllocPool->m_BlockVector.UsesLinearAlgorithm())
    11593  {
    11594  pAllocBlockVector = &hAllocPool->m_BlockVector;
    11595  }
    11596  }
    11597  // This allocation belongs to general pool.
    11598  else
    11599  {
    11600  pAllocBlockVector = m_pBlockVectors[memTypeIndex];
    11601  }
    11602 
    11603  if(pAllocBlockVector != VMA_NULL)
    11604  {
    11605  VmaDefragmentator* const pDefragmentator =
    11606  pAllocBlockVector->EnsureDefragmentator(this, currentFrameIndex);
    11607  VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ?
    11608  &pAllocationsChanged[allocIndex] : VMA_NULL;
    11609  pDefragmentator->AddAllocation(hAlloc, pChanged);
    11610  }
    11611  }
    11612  }
    11613 
    11614  VkResult result = VK_SUCCESS;
    11615 
    11616  // ======== Main processing.
    11617 
    11618  VkDeviceSize maxBytesToMove = SIZE_MAX;
    11619  uint32_t maxAllocationsToMove = UINT32_MAX;
    11620  if(pDefragmentationInfo != VMA_NULL)
    11621  {
    11622  maxBytesToMove = pDefragmentationInfo->maxBytesToMove;
    11623  maxAllocationsToMove = pDefragmentationInfo->maxAllocationsToMove;
    11624  }
    11625 
    11626  // Process standard memory.
    11627  for(uint32_t memTypeIndex = 0;
    11628  (memTypeIndex < GetMemoryTypeCount()) && (result == VK_SUCCESS);
    11629  ++memTypeIndex)
    11630  {
    11631  // Only HOST_VISIBLE memory types can be defragmented.
    11632  if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    11633  {
    11634  result = m_pBlockVectors[memTypeIndex]->Defragment(
    11635  pDefragmentationStats,
    11636  maxBytesToMove,
    11637  maxAllocationsToMove);
    11638  }
    11639  }
    11640 
    11641  // Process custom pools.
    11642  for(size_t poolIndex = 0; (poolIndex < poolCount) && (result == VK_SUCCESS); ++poolIndex)
    11643  {
    11644  result = m_Pools[poolIndex]->m_BlockVector.Defragment(
    11645  pDefragmentationStats,
    11646  maxBytesToMove,
    11647  maxAllocationsToMove);
    11648  }
    11649 
    11650  // ======== Destroy defragmentators.
    11651 
    11652  // Process custom pools.
    11653  for(size_t poolIndex = poolCount; poolIndex--; )
    11654  {
    11655  m_Pools[poolIndex]->m_BlockVector.DestroyDefragmentator();
    11656  }
    11657 
    11658  // Process standard memory.
    11659  for(uint32_t memTypeIndex = GetMemoryTypeCount(); memTypeIndex--; )
    11660  {
    11661  if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    11662  {
    11663  m_pBlockVectors[memTypeIndex]->DestroyDefragmentator();
    11664  }
    11665  }
    11666 
    11667  return result;
    11668 }
    11669 
    11670 void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo)
    11671 {
    11672  if(hAllocation->CanBecomeLost())
    11673  {
    11674  /*
    11675  Warning: This is a carefully designed algorithm.
    11676  Do not modify unless you really know what you're doing :)
    11677  */
    11678  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11679  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11680  for(;;)
    11681  {
    11682  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    11683  {
    11684  pAllocationInfo->memoryType = UINT32_MAX;
    11685  pAllocationInfo->deviceMemory = VK_NULL_HANDLE;
    11686  pAllocationInfo->offset = 0;
    11687  pAllocationInfo->size = hAllocation->GetSize();
    11688  pAllocationInfo->pMappedData = VMA_NULL;
    11689  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11690  return;
    11691  }
    11692  else if(localLastUseFrameIndex == localCurrFrameIndex)
    11693  {
    11694  pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex();
    11695  pAllocationInfo->deviceMemory = hAllocation->GetMemory();
    11696  pAllocationInfo->offset = hAllocation->GetOffset();
    11697  pAllocationInfo->size = hAllocation->GetSize();
    11698  pAllocationInfo->pMappedData = VMA_NULL;
    11699  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11700  return;
    11701  }
    11702  else // Last use time earlier than current time.
    11703  {
    11704  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11705  {
    11706  localLastUseFrameIndex = localCurrFrameIndex;
    11707  }
    11708  }
    11709  }
    11710  }
    11711  else
    11712  {
    11713 #if VMA_STATS_STRING_ENABLED
    11714  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11715  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11716  for(;;)
    11717  {
    11718  VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST);
    11719  if(localLastUseFrameIndex == localCurrFrameIndex)
    11720  {
    11721  break;
    11722  }
    11723  else // Last use time earlier than current time.
    11724  {
    11725  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11726  {
    11727  localLastUseFrameIndex = localCurrFrameIndex;
    11728  }
    11729  }
    11730  }
    11731 #endif
    11732 
    11733  pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex();
    11734  pAllocationInfo->deviceMemory = hAllocation->GetMemory();
    11735  pAllocationInfo->offset = hAllocation->GetOffset();
    11736  pAllocationInfo->size = hAllocation->GetSize();
    11737  pAllocationInfo->pMappedData = hAllocation->GetMappedData();
    11738  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11739  }
    11740 }
    11741 
    11742 bool VmaAllocator_T::TouchAllocation(VmaAllocation hAllocation)
    11743 {
    11744  // This is a stripped-down version of VmaAllocator_T::GetAllocationInfo.
    11745  if(hAllocation->CanBecomeLost())
    11746  {
    11747  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11748  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11749  for(;;)
    11750  {
    11751  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    11752  {
    11753  return false;
    11754  }
    11755  else if(localLastUseFrameIndex == localCurrFrameIndex)
    11756  {
    11757  return true;
    11758  }
    11759  else // Last use time earlier than current time.
    11760  {
    11761  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11762  {
    11763  localLastUseFrameIndex = localCurrFrameIndex;
    11764  }
    11765  }
    11766  }
    11767  }
    11768  else
    11769  {
    11770 #if VMA_STATS_STRING_ENABLED
    11771  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11772  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11773  for(;;)
    11774  {
    11775  VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST);
    11776  if(localLastUseFrameIndex == localCurrFrameIndex)
    11777  {
    11778  break;
    11779  }
    11780  else // Last use time earlier than current time.
    11781  {
    11782  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11783  {
    11784  localLastUseFrameIndex = localCurrFrameIndex;
    11785  }
    11786  }
    11787  }
    11788 #endif
    11789 
    11790  return true;
    11791  }
    11792 }
    11793 
    11794 VkResult VmaAllocator_T::CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool)
    11795 {
    11796  VMA_DEBUG_LOG(" CreatePool: MemoryTypeIndex=%u, flags=%u", pCreateInfo->memoryTypeIndex, pCreateInfo->flags);
    11797 
    11798  const bool isLinearAlgorithm = (pCreateInfo->flags & VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) != 0;
    11799 
    11800  VmaPoolCreateInfo newCreateInfo = *pCreateInfo;
    11801 
    11802  if(newCreateInfo.maxBlockCount == 0)
    11803  {
    11804  newCreateInfo.maxBlockCount = isLinearAlgorithm ? 1 : SIZE_MAX;
    11805  }
    11806  if(newCreateInfo.minBlockCount > newCreateInfo.maxBlockCount ||
    11807  isLinearAlgorithm && newCreateInfo.maxBlockCount > 1)
    11808  {
    11809  return VK_ERROR_INITIALIZATION_FAILED;
    11810  }
    11811  if(newCreateInfo.blockSize == 0)
    11812  {
    11813  newCreateInfo.blockSize = CalcPreferredBlockSize(newCreateInfo.memoryTypeIndex);
    11814  }
    11815 
    11816  *pPool = vma_new(this, VmaPool_T)(this, newCreateInfo);
    11817 
    11818  VkResult res = (*pPool)->m_BlockVector.CreateMinBlocks();
    11819  if(res != VK_SUCCESS)
    11820  {
    11821  vma_delete(this, *pPool);
    11822  *pPool = VMA_NULL;
    11823  return res;
    11824  }
    11825 
    11826  // Add to m_Pools.
    11827  {
    11828  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11829  (*pPool)->SetId(m_NextPoolId++);
    11830  VmaVectorInsertSorted<VmaPointerLess>(m_Pools, *pPool);
    11831  }
    11832 
    11833  return VK_SUCCESS;
    11834 }
    11835 
    11836 void VmaAllocator_T::DestroyPool(VmaPool pool)
    11837 {
    11838  // Remove from m_Pools.
    11839  {
    11840  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11841  bool success = VmaVectorRemoveSorted<VmaPointerLess>(m_Pools, pool);
    11842  VMA_ASSERT(success && "Pool not found in Allocator.");
    11843  }
    11844 
    11845  vma_delete(this, pool);
    11846 }
    11847 
    11848 void VmaAllocator_T::GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats)
    11849 {
    11850  pool->m_BlockVector.GetPoolStats(pPoolStats);
    11851 }
    11852 
    11853 void VmaAllocator_T::SetCurrentFrameIndex(uint32_t frameIndex)
    11854 {
    11855  m_CurrentFrameIndex.store(frameIndex);
    11856 }
    11857 
    11858 void VmaAllocator_T::MakePoolAllocationsLost(
    11859  VmaPool hPool,
    11860  size_t* pLostAllocationCount)
    11861 {
    11862  hPool->m_BlockVector.MakePoolAllocationsLost(
    11863  m_CurrentFrameIndex.load(),
    11864  pLostAllocationCount);
    11865 }
    11866 
    11867 VkResult VmaAllocator_T::CheckPoolCorruption(VmaPool hPool)
    11868 {
    11869  return hPool->m_BlockVector.CheckCorruption();
    11870 }
    11871 
    11872 VkResult VmaAllocator_T::CheckCorruption(uint32_t memoryTypeBits)
    11873 {
    11874  VkResult finalRes = VK_ERROR_FEATURE_NOT_PRESENT;
    11875 
    11876  // Process default pools.
    11877  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11878  {
    11879  if(((1u << memTypeIndex) & memoryTypeBits) != 0)
    11880  {
    11881  VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
    11882  VMA_ASSERT(pBlockVector);
    11883  VkResult localRes = pBlockVector->CheckCorruption();
    11884  switch(localRes)
    11885  {
    11886  case VK_ERROR_FEATURE_NOT_PRESENT:
    11887  break;
    11888  case VK_SUCCESS:
    11889  finalRes = VK_SUCCESS;
    11890  break;
    11891  default:
    11892  return localRes;
    11893  }
    11894  }
    11895  }
    11896 
    11897  // Process custom pools.
    11898  {
    11899  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11900  for(size_t poolIndex = 0, poolCount = m_Pools.size(); poolIndex < poolCount; ++poolIndex)
    11901  {
    11902  if(((1u << m_Pools[poolIndex]->m_BlockVector.GetMemoryTypeIndex()) & memoryTypeBits) != 0)
    11903  {
    11904  VkResult localRes = m_Pools[poolIndex]->m_BlockVector.CheckCorruption();
    11905  switch(localRes)
    11906  {
    11907  case VK_ERROR_FEATURE_NOT_PRESENT:
    11908  break;
    11909  case VK_SUCCESS:
    11910  finalRes = VK_SUCCESS;
    11911  break;
    11912  default:
    11913  return localRes;
    11914  }
    11915  }
    11916  }
    11917  }
    11918 
    11919  return finalRes;
    11920 }
    11921 
    11922 void VmaAllocator_T::CreateLostAllocation(VmaAllocation* pAllocation)
    11923 {
    11924  *pAllocation = vma_new(this, VmaAllocation_T)(VMA_FRAME_INDEX_LOST, false);
    11925  (*pAllocation)->InitLost();
    11926 }
    11927 
    11928 VkResult VmaAllocator_T::AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory)
    11929 {
    11930  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(pAllocateInfo->memoryTypeIndex);
    11931 
    11932  VkResult res;
    11933  if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE)
    11934  {
    11935  VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex);
    11936  if(m_HeapSizeLimit[heapIndex] >= pAllocateInfo->allocationSize)
    11937  {
    11938  res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory);
    11939  if(res == VK_SUCCESS)
    11940  {
    11941  m_HeapSizeLimit[heapIndex] -= pAllocateInfo->allocationSize;
    11942  }
    11943  }
    11944  else
    11945  {
    11946  res = VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11947  }
    11948  }
    11949  else
    11950  {
    11951  res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory);
    11952  }
    11953 
    11954  if(res == VK_SUCCESS && m_DeviceMemoryCallbacks.pfnAllocate != VMA_NULL)
    11955  {
    11956  (*m_DeviceMemoryCallbacks.pfnAllocate)(this, pAllocateInfo->memoryTypeIndex, *pMemory, pAllocateInfo->allocationSize);
    11957  }
    11958 
    11959  return res;
    11960 }
    11961 
    11962 void VmaAllocator_T::FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory)
    11963 {
    11964  if(m_DeviceMemoryCallbacks.pfnFree != VMA_NULL)
    11965  {
    11966  (*m_DeviceMemoryCallbacks.pfnFree)(this, memoryType, hMemory, size);
    11967  }
    11968 
    11969  (*m_VulkanFunctions.vkFreeMemory)(m_hDevice, hMemory, GetAllocationCallbacks());
    11970 
    11971  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memoryType);
    11972  if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE)
    11973  {
    11974  VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex);
    11975  m_HeapSizeLimit[heapIndex] += size;
    11976  }
    11977 }
    11978 
    11979 VkResult VmaAllocator_T::Map(VmaAllocation hAllocation, void** ppData)
    11980 {
    11981  if(hAllocation->CanBecomeLost())
    11982  {
    11983  return VK_ERROR_MEMORY_MAP_FAILED;
    11984  }
    11985 
    11986  switch(hAllocation->GetType())
    11987  {
    11988  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    11989  {
    11990  VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
    11991  char *pBytes = VMA_NULL;
    11992  VkResult res = pBlock->Map(this, 1, (void**)&pBytes);
    11993  if(res == VK_SUCCESS)
    11994  {
    11995  *ppData = pBytes + (ptrdiff_t)hAllocation->GetOffset();
    11996  hAllocation->BlockAllocMap();
    11997  }
    11998  return res;
    11999  }
    12000  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12001  return hAllocation->DedicatedAllocMap(this, ppData);
    12002  default:
    12003  VMA_ASSERT(0);
    12004  return VK_ERROR_MEMORY_MAP_FAILED;
    12005  }
    12006 }
    12007 
    12008 void VmaAllocator_T::Unmap(VmaAllocation hAllocation)
    12009 {
    12010  switch(hAllocation->GetType())
    12011  {
    12012  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12013  {
    12014  VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
    12015  hAllocation->BlockAllocUnmap();
    12016  pBlock->Unmap(this, 1);
    12017  }
    12018  break;
    12019  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12020  hAllocation->DedicatedAllocUnmap(this);
    12021  break;
    12022  default:
    12023  VMA_ASSERT(0);
    12024  }
    12025 }
    12026 
    12027 VkResult VmaAllocator_T::BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer)
    12028 {
    12029  VkResult res = VK_SUCCESS;
    12030  switch(hAllocation->GetType())
    12031  {
    12032  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12033  res = GetVulkanFunctions().vkBindBufferMemory(
    12034  m_hDevice,
    12035  hBuffer,
    12036  hAllocation->GetMemory(),
    12037  0); //memoryOffset
    12038  break;
    12039  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12040  {
    12041  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    12042  VMA_ASSERT(pBlock && "Binding buffer to allocation that doesn't belong to any block. Is the allocation lost?");
    12043  res = pBlock->BindBufferMemory(this, hAllocation, hBuffer);
    12044  break;
    12045  }
    12046  default:
    12047  VMA_ASSERT(0);
    12048  }
    12049  return res;
    12050 }
    12051 
    12052 VkResult VmaAllocator_T::BindImageMemory(VmaAllocation hAllocation, VkImage hImage)
    12053 {
    12054  VkResult res = VK_SUCCESS;
    12055  switch(hAllocation->GetType())
    12056  {
    12057  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12058  res = GetVulkanFunctions().vkBindImageMemory(
    12059  m_hDevice,
    12060  hImage,
    12061  hAllocation->GetMemory(),
    12062  0); //memoryOffset
    12063  break;
    12064  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12065  {
    12066  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    12067  VMA_ASSERT(pBlock && "Binding image to allocation that doesn't belong to any block. Is the allocation lost?");
    12068  res = pBlock->BindImageMemory(this, hAllocation, hImage);
    12069  break;
    12070  }
    12071  default:
    12072  VMA_ASSERT(0);
    12073  }
    12074  return res;
    12075 }
    12076 
    12077 void VmaAllocator_T::FlushOrInvalidateAllocation(
    12078  VmaAllocation hAllocation,
    12079  VkDeviceSize offset, VkDeviceSize size,
    12080  VMA_CACHE_OPERATION op)
    12081 {
    12082  const uint32_t memTypeIndex = hAllocation->GetMemoryTypeIndex();
    12083  if(size > 0 && IsMemoryTypeNonCoherent(memTypeIndex))
    12084  {
    12085  const VkDeviceSize allocationSize = hAllocation->GetSize();
    12086  VMA_ASSERT(offset <= allocationSize);
    12087 
    12088  const VkDeviceSize nonCoherentAtomSize = m_PhysicalDeviceProperties.limits.nonCoherentAtomSize;
    12089 
    12090  VkMappedMemoryRange memRange = { VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE };
    12091  memRange.memory = hAllocation->GetMemory();
    12092 
    12093  switch(hAllocation->GetType())
    12094  {
    12095  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12096  memRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
    12097  if(size == VK_WHOLE_SIZE)
    12098  {
    12099  memRange.size = allocationSize - memRange.offset;
    12100  }
    12101  else
    12102  {
    12103  VMA_ASSERT(offset + size <= allocationSize);
    12104  memRange.size = VMA_MIN(
    12105  VmaAlignUp(size + (offset - memRange.offset), nonCoherentAtomSize),
    12106  allocationSize - memRange.offset);
    12107  }
    12108  break;
    12109 
    12110  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12111  {
    12112  // 1. Still within this allocation.
    12113  memRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
    12114  if(size == VK_WHOLE_SIZE)
    12115  {
    12116  size = allocationSize - offset;
    12117  }
    12118  else
    12119  {
    12120  VMA_ASSERT(offset + size <= allocationSize);
    12121  }
    12122  memRange.size = VmaAlignUp(size + (offset - memRange.offset), nonCoherentAtomSize);
    12123 
    12124  // 2. Adjust to whole block.
    12125  const VkDeviceSize allocationOffset = hAllocation->GetOffset();
    12126  VMA_ASSERT(allocationOffset % nonCoherentAtomSize == 0);
    12127  const VkDeviceSize blockSize = hAllocation->GetBlock()->m_pMetadata->GetSize();
    12128  memRange.offset += allocationOffset;
    12129  memRange.size = VMA_MIN(memRange.size, blockSize - memRange.offset);
    12130 
    12131  break;
    12132  }
    12133 
    12134  default:
    12135  VMA_ASSERT(0);
    12136  }
    12137 
    12138  switch(op)
    12139  {
    12140  case VMA_CACHE_FLUSH:
    12141  (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, 1, &memRange);
    12142  break;
    12143  case VMA_CACHE_INVALIDATE:
    12144  (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, 1, &memRange);
    12145  break;
    12146  default:
    12147  VMA_ASSERT(0);
    12148  }
    12149  }
    12150  // else: Just ignore this call.
    12151 }
    12152 
    12153 void VmaAllocator_T::FreeDedicatedMemory(VmaAllocation allocation)
    12154 {
    12155  VMA_ASSERT(allocation && allocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
    12156 
    12157  const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
    12158  {
    12159  VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    12160  AllocationVectorType* const pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex];
    12161  VMA_ASSERT(pDedicatedAllocations);
    12162  bool success = VmaVectorRemoveSorted<VmaPointerLess>(*pDedicatedAllocations, allocation);
    12163  VMA_ASSERT(success);
    12164  }
    12165 
    12166  VkDeviceMemory hMemory = allocation->GetMemory();
    12167 
    12168  if(allocation->GetMappedData() != VMA_NULL)
    12169  {
    12170  (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory);
    12171  }
    12172 
    12173  FreeVulkanMemory(memTypeIndex, allocation->GetSize(), hMemory);
    12174 
    12175  VMA_DEBUG_LOG(" Freed DedicatedMemory MemoryTypeIndex=%u", memTypeIndex);
    12176 }
    12177 
    12178 void VmaAllocator_T::FillAllocation(const VmaAllocation hAllocation, uint8_t pattern)
    12179 {
    12180  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS &&
    12181  !hAllocation->CanBecomeLost() &&
    12182  (m_MemProps.memoryTypes[hAllocation->GetMemoryTypeIndex()].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    12183  {
    12184  void* pData = VMA_NULL;
    12185  VkResult res = Map(hAllocation, &pData);
    12186  if(res == VK_SUCCESS)
    12187  {
    12188  memset(pData, (int)pattern, (size_t)hAllocation->GetSize());
    12189  FlushOrInvalidateAllocation(hAllocation, 0, VK_WHOLE_SIZE, VMA_CACHE_FLUSH);
    12190  Unmap(hAllocation);
    12191  }
    12192  else
    12193  {
    12194  VMA_ASSERT(0 && "VMA_DEBUG_INITIALIZE_ALLOCATIONS is enabled, but couldn't map memory to fill allocation.");
    12195  }
    12196  }
    12197 }
    12198 
    12199 #if VMA_STATS_STRING_ENABLED
    12200 
    12201 void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json)
    12202 {
    12203  bool dedicatedAllocationsStarted = false;
    12204  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    12205  {
    12206  VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    12207  AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex];
    12208  VMA_ASSERT(pDedicatedAllocVector);
    12209  if(pDedicatedAllocVector->empty() == false)
    12210  {
    12211  if(dedicatedAllocationsStarted == false)
    12212  {
    12213  dedicatedAllocationsStarted = true;
    12214  json.WriteString("DedicatedAllocations");
    12215  json.BeginObject();
    12216  }
    12217 
    12218  json.BeginString("Type ");
    12219  json.ContinueString(memTypeIndex);
    12220  json.EndString();
    12221 
    12222  json.BeginArray();
    12223 
    12224  for(size_t i = 0; i < pDedicatedAllocVector->size(); ++i)
    12225  {
    12226  json.BeginObject(true);
    12227  const VmaAllocation hAlloc = (*pDedicatedAllocVector)[i];
    12228  hAlloc->PrintParameters(json);
    12229  json.EndObject();
    12230  }
    12231 
    12232  json.EndArray();
    12233  }
    12234  }
    12235  if(dedicatedAllocationsStarted)
    12236  {
    12237  json.EndObject();
    12238  }
    12239 
    12240  {
    12241  bool allocationsStarted = false;
    12242  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    12243  {
    12244  if(m_pBlockVectors[memTypeIndex]->IsEmpty() == false)
    12245  {
    12246  if(allocationsStarted == false)
    12247  {
    12248  allocationsStarted = true;
    12249  json.WriteString("DefaultPools");
    12250  json.BeginObject();
    12251  }
    12252 
    12253  json.BeginString("Type ");
    12254  json.ContinueString(memTypeIndex);
    12255  json.EndString();
    12256 
    12257  m_pBlockVectors[memTypeIndex]->PrintDetailedMap(json);
    12258  }
    12259  }
    12260  if(allocationsStarted)
    12261  {
    12262  json.EndObject();
    12263  }
    12264  }
    12265 
    12266  // Custom pools
    12267  {
    12268  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    12269  const size_t poolCount = m_Pools.size();
    12270  if(poolCount > 0)
    12271  {
    12272  json.WriteString("Pools");
    12273  json.BeginObject();
    12274  for(size_t poolIndex = 0; poolIndex < poolCount; ++poolIndex)
    12275  {
    12276  json.BeginString();
    12277  json.ContinueString(m_Pools[poolIndex]->GetId());
    12278  json.EndString();
    12279 
    12280  m_Pools[poolIndex]->m_BlockVector.PrintDetailedMap(json);
    12281  }
    12282  json.EndObject();
    12283  }
    12284  }
    12285 }
    12286 
    12287 #endif // #if VMA_STATS_STRING_ENABLED
    12288 
    12290 // Public interface
    12291 
    12292 VkResult vmaCreateAllocator(
    12293  const VmaAllocatorCreateInfo* pCreateInfo,
    12294  VmaAllocator* pAllocator)
    12295 {
    12296  VMA_ASSERT(pCreateInfo && pAllocator);
    12297  VMA_DEBUG_LOG("vmaCreateAllocator");
    12298  *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo);
    12299  return (*pAllocator)->Init(pCreateInfo);
    12300 }
    12301 
    12302 void vmaDestroyAllocator(
    12303  VmaAllocator allocator)
    12304 {
    12305  if(allocator != VK_NULL_HANDLE)
    12306  {
    12307  VMA_DEBUG_LOG("vmaDestroyAllocator");
    12308  VkAllocationCallbacks allocationCallbacks = allocator->m_AllocationCallbacks;
    12309  vma_delete(&allocationCallbacks, allocator);
    12310  }
    12311 }
    12312 
    12313 void vmaGetPhysicalDeviceProperties(
    12314  VmaAllocator allocator,
    12315  const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
    12316 {
    12317  VMA_ASSERT(allocator && ppPhysicalDeviceProperties);
    12318  *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties;
    12319 }
    12320 
    12321 void vmaGetMemoryProperties(
    12322  VmaAllocator allocator,
    12323  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties)
    12324 {
    12325  VMA_ASSERT(allocator && ppPhysicalDeviceMemoryProperties);
    12326  *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps;
    12327 }
    12328 
    12329 void vmaGetMemoryTypeProperties(
    12330  VmaAllocator allocator,
    12331  uint32_t memoryTypeIndex,
    12332  VkMemoryPropertyFlags* pFlags)
    12333 {
    12334  VMA_ASSERT(allocator && pFlags);
    12335  VMA_ASSERT(memoryTypeIndex < allocator->GetMemoryTypeCount());
    12336  *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags;
    12337 }
    12338 
    12339 void vmaSetCurrentFrameIndex(
    12340  VmaAllocator allocator,
    12341  uint32_t frameIndex)
    12342 {
    12343  VMA_ASSERT(allocator);
    12344  VMA_ASSERT(frameIndex != VMA_FRAME_INDEX_LOST);
    12345 
    12346  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12347 
    12348  allocator->SetCurrentFrameIndex(frameIndex);
    12349 }
    12350 
    12351 void vmaCalculateStats(
    12352  VmaAllocator allocator,
    12353  VmaStats* pStats)
    12354 {
    12355  VMA_ASSERT(allocator && pStats);
    12356  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12357  allocator->CalculateStats(pStats);
    12358 }
    12359 
    12360 #if VMA_STATS_STRING_ENABLED
    12361 
    12362 void vmaBuildStatsString(
    12363  VmaAllocator allocator,
    12364  char** ppStatsString,
    12365  VkBool32 detailedMap)
    12366 {
    12367  VMA_ASSERT(allocator && ppStatsString);
    12368  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12369 
    12370  VmaStringBuilder sb(allocator);
    12371  {
    12372  VmaJsonWriter json(allocator->GetAllocationCallbacks(), sb);
    12373  json.BeginObject();
    12374 
    12375  VmaStats stats;
    12376  allocator->CalculateStats(&stats);
    12377 
    12378  json.WriteString("Total");
    12379  VmaPrintStatInfo(json, stats.total);
    12380 
    12381  for(uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex)
    12382  {
    12383  json.BeginString("Heap ");
    12384  json.ContinueString(heapIndex);
    12385  json.EndString();
    12386  json.BeginObject();
    12387 
    12388  json.WriteString("Size");
    12389  json.WriteNumber(allocator->m_MemProps.memoryHeaps[heapIndex].size);
    12390 
    12391  json.WriteString("Flags");
    12392  json.BeginArray(true);
    12393  if((allocator->m_MemProps.memoryHeaps[heapIndex].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) != 0)
    12394  {
    12395  json.WriteString("DEVICE_LOCAL");
    12396  }
    12397  json.EndArray();
    12398 
    12399  if(stats.memoryHeap[heapIndex].blockCount > 0)
    12400  {
    12401  json.WriteString("Stats");
    12402  VmaPrintStatInfo(json, stats.memoryHeap[heapIndex]);
    12403  }
    12404 
    12405  for(uint32_t typeIndex = 0; typeIndex < allocator->GetMemoryTypeCount(); ++typeIndex)
    12406  {
    12407  if(allocator->MemoryTypeIndexToHeapIndex(typeIndex) == heapIndex)
    12408  {
    12409  json.BeginString("Type ");
    12410  json.ContinueString(typeIndex);
    12411  json.EndString();
    12412 
    12413  json.BeginObject();
    12414 
    12415  json.WriteString("Flags");
    12416  json.BeginArray(true);
    12417  VkMemoryPropertyFlags flags = allocator->m_MemProps.memoryTypes[typeIndex].propertyFlags;
    12418  if((flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) != 0)
    12419  {
    12420  json.WriteString("DEVICE_LOCAL");
    12421  }
    12422  if((flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    12423  {
    12424  json.WriteString("HOST_VISIBLE");
    12425  }
    12426  if((flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) != 0)
    12427  {
    12428  json.WriteString("HOST_COHERENT");
    12429  }
    12430  if((flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) != 0)
    12431  {
    12432  json.WriteString("HOST_CACHED");
    12433  }
    12434  if((flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) != 0)
    12435  {
    12436  json.WriteString("LAZILY_ALLOCATED");
    12437  }
    12438  json.EndArray();
    12439 
    12440  if(stats.memoryType[typeIndex].blockCount > 0)
    12441  {
    12442  json.WriteString("Stats");
    12443  VmaPrintStatInfo(json, stats.memoryType[typeIndex]);
    12444  }
    12445 
    12446  json.EndObject();
    12447  }
    12448  }
    12449 
    12450  json.EndObject();
    12451  }
    12452  if(detailedMap == VK_TRUE)
    12453  {
    12454  allocator->PrintDetailedMap(json);
    12455  }
    12456 
    12457  json.EndObject();
    12458  }
    12459 
    12460  const size_t len = sb.GetLength();
    12461  char* const pChars = vma_new_array(allocator, char, len + 1);
    12462  if(len > 0)
    12463  {
    12464  memcpy(pChars, sb.GetData(), len);
    12465  }
    12466  pChars[len] = '\0';
    12467  *ppStatsString = pChars;
    12468 }
    12469 
    12470 void vmaFreeStatsString(
    12471  VmaAllocator allocator,
    12472  char* pStatsString)
    12473 {
    12474  if(pStatsString != VMA_NULL)
    12475  {
    12476  VMA_ASSERT(allocator);
    12477  size_t len = strlen(pStatsString);
    12478  vma_delete_array(allocator, pStatsString, len + 1);
    12479  }
    12480 }
    12481 
    12482 #endif // #if VMA_STATS_STRING_ENABLED
    12483 
    12484 /*
    12485 This function is not protected by any mutex because it just reads immutable data.
    12486 */
    12487 VkResult vmaFindMemoryTypeIndex(
    12488  VmaAllocator allocator,
    12489  uint32_t memoryTypeBits,
    12490  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12491  uint32_t* pMemoryTypeIndex)
    12492 {
    12493  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12494  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12495  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12496 
    12497  if(pAllocationCreateInfo->memoryTypeBits != 0)
    12498  {
    12499  memoryTypeBits &= pAllocationCreateInfo->memoryTypeBits;
    12500  }
    12501 
    12502  uint32_t requiredFlags = pAllocationCreateInfo->requiredFlags;
    12503  uint32_t preferredFlags = pAllocationCreateInfo->preferredFlags;
    12504 
    12505  const bool mapped = (pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
    12506  if(mapped)
    12507  {
    12508  preferredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12509  }
    12510 
    12511  // Convert usage to requiredFlags and preferredFlags.
    12512  switch(pAllocationCreateInfo->usage)
    12513  {
    12514  case VMA_MEMORY_USAGE_UNKNOWN:
    12515  break;
    12516  case VMA_MEMORY_USAGE_GPU_ONLY:
    12517  if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    12518  {
    12519  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
    12520  }
    12521  break;
    12522  case VMA_MEMORY_USAGE_CPU_ONLY:
    12523  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    12524  break;
    12525  case VMA_MEMORY_USAGE_CPU_TO_GPU:
    12526  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12527  if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    12528  {
    12529  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
    12530  }
    12531  break;
    12532  case VMA_MEMORY_USAGE_GPU_TO_CPU:
    12533  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12534  preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
    12535  break;
    12536  default:
    12537  break;
    12538  }
    12539 
    12540  *pMemoryTypeIndex = UINT32_MAX;
    12541  uint32_t minCost = UINT32_MAX;
    12542  for(uint32_t memTypeIndex = 0, memTypeBit = 1;
    12543  memTypeIndex < allocator->GetMemoryTypeCount();
    12544  ++memTypeIndex, memTypeBit <<= 1)
    12545  {
    12546  // This memory type is acceptable according to memoryTypeBits bitmask.
    12547  if((memTypeBit & memoryTypeBits) != 0)
    12548  {
    12549  const VkMemoryPropertyFlags currFlags =
    12550  allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
    12551  // This memory type contains requiredFlags.
    12552  if((requiredFlags & ~currFlags) == 0)
    12553  {
    12554  // Calculate cost as number of bits from preferredFlags not present in this memory type.
    12555  uint32_t currCost = VmaCountBitsSet(preferredFlags & ~currFlags);
    12556  // Remember memory type with lowest cost.
    12557  if(currCost < minCost)
    12558  {
    12559  *pMemoryTypeIndex = memTypeIndex;
    12560  if(currCost == 0)
    12561  {
    12562  return VK_SUCCESS;
    12563  }
    12564  minCost = currCost;
    12565  }
    12566  }
    12567  }
    12568  }
    12569  return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT;
    12570 }
    12571 
    12572 VkResult vmaFindMemoryTypeIndexForBufferInfo(
    12573  VmaAllocator allocator,
    12574  const VkBufferCreateInfo* pBufferCreateInfo,
    12575  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12576  uint32_t* pMemoryTypeIndex)
    12577 {
    12578  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12579  VMA_ASSERT(pBufferCreateInfo != VMA_NULL);
    12580  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12581  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12582 
    12583  const VkDevice hDev = allocator->m_hDevice;
    12584  VkBuffer hBuffer = VK_NULL_HANDLE;
    12585  VkResult res = allocator->GetVulkanFunctions().vkCreateBuffer(
    12586  hDev, pBufferCreateInfo, allocator->GetAllocationCallbacks(), &hBuffer);
    12587  if(res == VK_SUCCESS)
    12588  {
    12589  VkMemoryRequirements memReq = {};
    12590  allocator->GetVulkanFunctions().vkGetBufferMemoryRequirements(
    12591  hDev, hBuffer, &memReq);
    12592 
    12593  res = vmaFindMemoryTypeIndex(
    12594  allocator,
    12595  memReq.memoryTypeBits,
    12596  pAllocationCreateInfo,
    12597  pMemoryTypeIndex);
    12598 
    12599  allocator->GetVulkanFunctions().vkDestroyBuffer(
    12600  hDev, hBuffer, allocator->GetAllocationCallbacks());
    12601  }
    12602  return res;
    12603 }
    12604 
    12605 VkResult vmaFindMemoryTypeIndexForImageInfo(
    12606  VmaAllocator allocator,
    12607  const VkImageCreateInfo* pImageCreateInfo,
    12608  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12609  uint32_t* pMemoryTypeIndex)
    12610 {
    12611  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12612  VMA_ASSERT(pImageCreateInfo != VMA_NULL);
    12613  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12614  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12615 
    12616  const VkDevice hDev = allocator->m_hDevice;
    12617  VkImage hImage = VK_NULL_HANDLE;
    12618  VkResult res = allocator->GetVulkanFunctions().vkCreateImage(
    12619  hDev, pImageCreateInfo, allocator->GetAllocationCallbacks(), &hImage);
    12620  if(res == VK_SUCCESS)
    12621  {
    12622  VkMemoryRequirements memReq = {};
    12623  allocator->GetVulkanFunctions().vkGetImageMemoryRequirements(
    12624  hDev, hImage, &memReq);
    12625 
    12626  res = vmaFindMemoryTypeIndex(
    12627  allocator,
    12628  memReq.memoryTypeBits,
    12629  pAllocationCreateInfo,
    12630  pMemoryTypeIndex);
    12631 
    12632  allocator->GetVulkanFunctions().vkDestroyImage(
    12633  hDev, hImage, allocator->GetAllocationCallbacks());
    12634  }
    12635  return res;
    12636 }
    12637 
    12638 VkResult vmaCreatePool(
    12639  VmaAllocator allocator,
    12640  const VmaPoolCreateInfo* pCreateInfo,
    12641  VmaPool* pPool)
    12642 {
    12643  VMA_ASSERT(allocator && pCreateInfo && pPool);
    12644 
    12645  VMA_DEBUG_LOG("vmaCreatePool");
    12646 
    12647  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12648 
    12649  VkResult res = allocator->CreatePool(pCreateInfo, pPool);
    12650 
    12651 #if VMA_RECORDING_ENABLED
    12652  if(allocator->GetRecorder() != VMA_NULL)
    12653  {
    12654  allocator->GetRecorder()->RecordCreatePool(allocator->GetCurrentFrameIndex(), *pCreateInfo, *pPool);
    12655  }
    12656 #endif
    12657 
    12658  return res;
    12659 }
    12660 
    12661 void vmaDestroyPool(
    12662  VmaAllocator allocator,
    12663  VmaPool pool)
    12664 {
    12665  VMA_ASSERT(allocator);
    12666 
    12667  if(pool == VK_NULL_HANDLE)
    12668  {
    12669  return;
    12670  }
    12671 
    12672  VMA_DEBUG_LOG("vmaDestroyPool");
    12673 
    12674  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12675 
    12676 #if VMA_RECORDING_ENABLED
    12677  if(allocator->GetRecorder() != VMA_NULL)
    12678  {
    12679  allocator->GetRecorder()->RecordDestroyPool(allocator->GetCurrentFrameIndex(), pool);
    12680  }
    12681 #endif
    12682 
    12683  allocator->DestroyPool(pool);
    12684 }
    12685 
    12686 void vmaGetPoolStats(
    12687  VmaAllocator allocator,
    12688  VmaPool pool,
    12689  VmaPoolStats* pPoolStats)
    12690 {
    12691  VMA_ASSERT(allocator && pool && pPoolStats);
    12692 
    12693  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12694 
    12695  allocator->GetPoolStats(pool, pPoolStats);
    12696 }
    12697 
    12698 void vmaMakePoolAllocationsLost(
    12699  VmaAllocator allocator,
    12700  VmaPool pool,
    12701  size_t* pLostAllocationCount)
    12702 {
    12703  VMA_ASSERT(allocator && pool);
    12704 
    12705  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12706 
    12707 #if VMA_RECORDING_ENABLED
    12708  if(allocator->GetRecorder() != VMA_NULL)
    12709  {
    12710  allocator->GetRecorder()->RecordMakePoolAllocationsLost(allocator->GetCurrentFrameIndex(), pool);
    12711  }
    12712 #endif
    12713 
    12714  allocator->MakePoolAllocationsLost(pool, pLostAllocationCount);
    12715 }
    12716 
    12717 VkResult vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool)
    12718 {
    12719  VMA_ASSERT(allocator && pool);
    12720 
    12721  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12722 
    12723  VMA_DEBUG_LOG("vmaCheckPoolCorruption");
    12724 
    12725  return allocator->CheckPoolCorruption(pool);
    12726 }
    12727 
    12728 VkResult vmaAllocateMemory(
    12729  VmaAllocator allocator,
    12730  const VkMemoryRequirements* pVkMemoryRequirements,
    12731  const VmaAllocationCreateInfo* pCreateInfo,
    12732  VmaAllocation* pAllocation,
    12733  VmaAllocationInfo* pAllocationInfo)
    12734 {
    12735  VMA_ASSERT(allocator && pVkMemoryRequirements && pCreateInfo && pAllocation);
    12736 
    12737  VMA_DEBUG_LOG("vmaAllocateMemory");
    12738 
    12739  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12740 
    12741  VkResult result = allocator->AllocateMemory(
    12742  *pVkMemoryRequirements,
    12743  false, // requiresDedicatedAllocation
    12744  false, // prefersDedicatedAllocation
    12745  VK_NULL_HANDLE, // dedicatedBuffer
    12746  VK_NULL_HANDLE, // dedicatedImage
    12747  *pCreateInfo,
    12748  VMA_SUBALLOCATION_TYPE_UNKNOWN,
    12749  pAllocation);
    12750 
    12751 #if VMA_RECORDING_ENABLED
    12752  if(allocator->GetRecorder() != VMA_NULL)
    12753  {
    12754  allocator->GetRecorder()->RecordAllocateMemory(
    12755  allocator->GetCurrentFrameIndex(),
    12756  *pVkMemoryRequirements,
    12757  *pCreateInfo,
    12758  *pAllocation);
    12759  }
    12760 #endif
    12761 
    12762  if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS)
    12763  {
    12764  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12765  }
    12766 
    12767  return result;
    12768 }
    12769 
    12770 VkResult vmaAllocateMemoryForBuffer(
    12771  VmaAllocator allocator,
    12772  VkBuffer buffer,
    12773  const VmaAllocationCreateInfo* pCreateInfo,
    12774  VmaAllocation* pAllocation,
    12775  VmaAllocationInfo* pAllocationInfo)
    12776 {
    12777  VMA_ASSERT(allocator && buffer != VK_NULL_HANDLE && pCreateInfo && pAllocation);
    12778 
    12779  VMA_DEBUG_LOG("vmaAllocateMemoryForBuffer");
    12780 
    12781  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12782 
    12783  VkMemoryRequirements vkMemReq = {};
    12784  bool requiresDedicatedAllocation = false;
    12785  bool prefersDedicatedAllocation = false;
    12786  allocator->GetBufferMemoryRequirements(buffer, vkMemReq,
    12787  requiresDedicatedAllocation,
    12788  prefersDedicatedAllocation);
    12789 
    12790  VkResult result = allocator->AllocateMemory(
    12791  vkMemReq,
    12792  requiresDedicatedAllocation,
    12793  prefersDedicatedAllocation,
    12794  buffer, // dedicatedBuffer
    12795  VK_NULL_HANDLE, // dedicatedImage
    12796  *pCreateInfo,
    12797  VMA_SUBALLOCATION_TYPE_BUFFER,
    12798  pAllocation);
    12799 
    12800 #if VMA_RECORDING_ENABLED
    12801  if(allocator->GetRecorder() != VMA_NULL)
    12802  {
    12803  allocator->GetRecorder()->RecordAllocateMemoryForBuffer(
    12804  allocator->GetCurrentFrameIndex(),
    12805  vkMemReq,
    12806  requiresDedicatedAllocation,
    12807  prefersDedicatedAllocation,
    12808  *pCreateInfo,
    12809  *pAllocation);
    12810  }
    12811 #endif
    12812 
    12813  if(pAllocationInfo && result == VK_SUCCESS)
    12814  {
    12815  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12816  }
    12817 
    12818  return result;
    12819 }
    12820 
    12821 VkResult vmaAllocateMemoryForImage(
    12822  VmaAllocator allocator,
    12823  VkImage image,
    12824  const VmaAllocationCreateInfo* pCreateInfo,
    12825  VmaAllocation* pAllocation,
    12826  VmaAllocationInfo* pAllocationInfo)
    12827 {
    12828  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pCreateInfo && pAllocation);
    12829 
    12830  VMA_DEBUG_LOG("vmaAllocateMemoryForImage");
    12831 
    12832  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12833 
    12834  VkMemoryRequirements vkMemReq = {};
    12835  bool requiresDedicatedAllocation = false;
    12836  bool prefersDedicatedAllocation = false;
    12837  allocator->GetImageMemoryRequirements(image, vkMemReq,
    12838  requiresDedicatedAllocation, prefersDedicatedAllocation);
    12839 
    12840  VkResult result = allocator->AllocateMemory(
    12841  vkMemReq,
    12842  requiresDedicatedAllocation,
    12843  prefersDedicatedAllocation,
    12844  VK_NULL_HANDLE, // dedicatedBuffer
    12845  image, // dedicatedImage
    12846  *pCreateInfo,
    12847  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN,
    12848  pAllocation);
    12849 
    12850 #if VMA_RECORDING_ENABLED
    12851  if(allocator->GetRecorder() != VMA_NULL)
    12852  {
    12853  allocator->GetRecorder()->RecordAllocateMemoryForImage(
    12854  allocator->GetCurrentFrameIndex(),
    12855  vkMemReq,
    12856  requiresDedicatedAllocation,
    12857  prefersDedicatedAllocation,
    12858  *pCreateInfo,
    12859  *pAllocation);
    12860  }
    12861 #endif
    12862 
    12863  if(pAllocationInfo && result == VK_SUCCESS)
    12864  {
    12865  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12866  }
    12867 
    12868  return result;
    12869 }
    12870 
    12871 void vmaFreeMemory(
    12872  VmaAllocator allocator,
    12873  VmaAllocation allocation)
    12874 {
    12875  VMA_ASSERT(allocator);
    12876 
    12877  if(allocation == VK_NULL_HANDLE)
    12878  {
    12879  return;
    12880  }
    12881 
    12882  VMA_DEBUG_LOG("vmaFreeMemory");
    12883 
    12884  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12885 
    12886 #if VMA_RECORDING_ENABLED
    12887  if(allocator->GetRecorder() != VMA_NULL)
    12888  {
    12889  allocator->GetRecorder()->RecordFreeMemory(
    12890  allocator->GetCurrentFrameIndex(),
    12891  allocation);
    12892  }
    12893 #endif
    12894 
    12895  allocator->FreeMemory(allocation);
    12896 }
    12897 
    12898 void vmaGetAllocationInfo(
    12899  VmaAllocator allocator,
    12900  VmaAllocation allocation,
    12901  VmaAllocationInfo* pAllocationInfo)
    12902 {
    12903  VMA_ASSERT(allocator && allocation && pAllocationInfo);
    12904 
    12905  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12906 
    12907 #if VMA_RECORDING_ENABLED
    12908  if(allocator->GetRecorder() != VMA_NULL)
    12909  {
    12910  allocator->GetRecorder()->RecordGetAllocationInfo(
    12911  allocator->GetCurrentFrameIndex(),
    12912  allocation);
    12913  }
    12914 #endif
    12915 
    12916  allocator->GetAllocationInfo(allocation, pAllocationInfo);
    12917 }
    12918 
    12919 VkBool32 vmaTouchAllocation(
    12920  VmaAllocator allocator,
    12921  VmaAllocation allocation)
    12922 {
    12923  VMA_ASSERT(allocator && allocation);
    12924 
    12925  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12926 
    12927 #if VMA_RECORDING_ENABLED
    12928  if(allocator->GetRecorder() != VMA_NULL)
    12929  {
    12930  allocator->GetRecorder()->RecordTouchAllocation(
    12931  allocator->GetCurrentFrameIndex(),
    12932  allocation);
    12933  }
    12934 #endif
    12935 
    12936  return allocator->TouchAllocation(allocation);
    12937 }
    12938 
    12939 void vmaSetAllocationUserData(
    12940  VmaAllocator allocator,
    12941  VmaAllocation allocation,
    12942  void* pUserData)
    12943 {
    12944  VMA_ASSERT(allocator && allocation);
    12945 
    12946  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12947 
    12948  allocation->SetUserData(allocator, pUserData);
    12949 
    12950 #if VMA_RECORDING_ENABLED
    12951  if(allocator->GetRecorder() != VMA_NULL)
    12952  {
    12953  allocator->GetRecorder()->RecordSetAllocationUserData(
    12954  allocator->GetCurrentFrameIndex(),
    12955  allocation,
    12956  pUserData);
    12957  }
    12958 #endif
    12959 }
    12960 
    12961 void vmaCreateLostAllocation(
    12962  VmaAllocator allocator,
    12963  VmaAllocation* pAllocation)
    12964 {
    12965  VMA_ASSERT(allocator && pAllocation);
    12966 
    12967  VMA_DEBUG_GLOBAL_MUTEX_LOCK;
    12968 
    12969  allocator->CreateLostAllocation(pAllocation);
    12970 
    12971 #if VMA_RECORDING_ENABLED
    12972  if(allocator->GetRecorder() != VMA_NULL)
    12973  {
    12974  allocator->GetRecorder()->RecordCreateLostAllocation(
    12975  allocator->GetCurrentFrameIndex(),
    12976  *pAllocation);
    12977  }
    12978 #endif
    12979 }
    12980 
    12981 VkResult vmaMapMemory(
    12982  VmaAllocator allocator,
    12983  VmaAllocation allocation,
    12984  void** ppData)
    12985 {
    12986  VMA_ASSERT(allocator && allocation && ppData);
    12987 
    12988  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12989 
    12990  VkResult res = allocator->Map(allocation, ppData);
    12991 
    12992 #if VMA_RECORDING_ENABLED
    12993  if(allocator->GetRecorder() != VMA_NULL)
    12994  {
    12995  allocator->GetRecorder()->RecordMapMemory(
    12996  allocator->GetCurrentFrameIndex(),
    12997  allocation);
    12998  }
    12999 #endif
    13000 
    13001  return res;
    13002 }
    13003 
    13004 void vmaUnmapMemory(
    13005  VmaAllocator allocator,
    13006  VmaAllocation allocation)
    13007 {
    13008  VMA_ASSERT(allocator && allocation);
    13009 
    13010  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13011 
    13012 #if VMA_RECORDING_ENABLED
    13013  if(allocator->GetRecorder() != VMA_NULL)
    13014  {
    13015  allocator->GetRecorder()->RecordUnmapMemory(
    13016  allocator->GetCurrentFrameIndex(),
    13017  allocation);
    13018  }
    13019 #endif
    13020 
    13021  allocator->Unmap(allocation);
    13022 }
    13023 
    13024 void vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    13025 {
    13026  VMA_ASSERT(allocator && allocation);
    13027 
    13028  VMA_DEBUG_LOG("vmaFlushAllocation");
    13029 
    13030  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13031 
    13032  allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_FLUSH);
    13033 
    13034 #if VMA_RECORDING_ENABLED
    13035  if(allocator->GetRecorder() != VMA_NULL)
    13036  {
    13037  allocator->GetRecorder()->RecordFlushAllocation(
    13038  allocator->GetCurrentFrameIndex(),
    13039  allocation, offset, size);
    13040  }
    13041 #endif
    13042 }
    13043 
    13044 void vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    13045 {
    13046  VMA_ASSERT(allocator && allocation);
    13047 
    13048  VMA_DEBUG_LOG("vmaInvalidateAllocation");
    13049 
    13050  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13051 
    13052  allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_INVALIDATE);
    13053 
    13054 #if VMA_RECORDING_ENABLED
    13055  if(allocator->GetRecorder() != VMA_NULL)
    13056  {
    13057  allocator->GetRecorder()->RecordInvalidateAllocation(
    13058  allocator->GetCurrentFrameIndex(),
    13059  allocation, offset, size);
    13060  }
    13061 #endif
    13062 }
    13063 
    13064 VkResult vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits)
    13065 {
    13066  VMA_ASSERT(allocator);
    13067 
    13068  VMA_DEBUG_LOG("vmaCheckCorruption");
    13069 
    13070  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13071 
    13072  return allocator->CheckCorruption(memoryTypeBits);
    13073 }
    13074 
    13075 VkResult vmaDefragment(
    13076  VmaAllocator allocator,
    13077  VmaAllocation* pAllocations,
    13078  size_t allocationCount,
    13079  VkBool32* pAllocationsChanged,
    13080  const VmaDefragmentationInfo *pDefragmentationInfo,
    13081  VmaDefragmentationStats* pDefragmentationStats)
    13082 {
    13083  VMA_ASSERT(allocator && pAllocations);
    13084 
    13085  VMA_DEBUG_LOG("vmaDefragment");
    13086 
    13087  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13088 
    13089  return allocator->Defragment(pAllocations, allocationCount, pAllocationsChanged, pDefragmentationInfo, pDefragmentationStats);
    13090 }
    13091 
    13092 VkResult vmaBindBufferMemory(
    13093  VmaAllocator allocator,
    13094  VmaAllocation allocation,
    13095  VkBuffer buffer)
    13096 {
    13097  VMA_ASSERT(allocator && allocation && buffer);
    13098 
    13099  VMA_DEBUG_LOG("vmaBindBufferMemory");
    13100 
    13101  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13102 
    13103  return allocator->BindBufferMemory(allocation, buffer);
    13104 }
    13105 
    13106 VkResult vmaBindImageMemory(
    13107  VmaAllocator allocator,
    13108  VmaAllocation allocation,
    13109  VkImage image)
    13110 {
    13111  VMA_ASSERT(allocator && allocation && image);
    13112 
    13113  VMA_DEBUG_LOG("vmaBindImageMemory");
    13114 
    13115  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13116 
    13117  return allocator->BindImageMemory(allocation, image);
    13118 }
    13119 
    13120 VkResult vmaCreateBuffer(
    13121  VmaAllocator allocator,
    13122  const VkBufferCreateInfo* pBufferCreateInfo,
    13123  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    13124  VkBuffer* pBuffer,
    13125  VmaAllocation* pAllocation,
    13126  VmaAllocationInfo* pAllocationInfo)
    13127 {
    13128  VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && pBuffer && pAllocation);
    13129 
    13130  VMA_DEBUG_LOG("vmaCreateBuffer");
    13131 
    13132  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13133 
    13134  *pBuffer = VK_NULL_HANDLE;
    13135  *pAllocation = VK_NULL_HANDLE;
    13136 
    13137  // 1. Create VkBuffer.
    13138  VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)(
    13139  allocator->m_hDevice,
    13140  pBufferCreateInfo,
    13141  allocator->GetAllocationCallbacks(),
    13142  pBuffer);
    13143  if(res >= 0)
    13144  {
    13145  // 2. vkGetBufferMemoryRequirements.
    13146  VkMemoryRequirements vkMemReq = {};
    13147  bool requiresDedicatedAllocation = false;
    13148  bool prefersDedicatedAllocation = false;
    13149  allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq,
    13150  requiresDedicatedAllocation, prefersDedicatedAllocation);
    13151 
    13152  // Make sure alignment requirements for specific buffer usages reported
    13153  // in Physical Device Properties are included in alignment reported by memory requirements.
    13154  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT) != 0)
    13155  {
    13156  VMA_ASSERT(vkMemReq.alignment %
    13157  allocator->m_PhysicalDeviceProperties.limits.minTexelBufferOffsetAlignment == 0);
    13158  }
    13159  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT) != 0)
    13160  {
    13161  VMA_ASSERT(vkMemReq.alignment %
    13162  allocator->m_PhysicalDeviceProperties.limits.minUniformBufferOffsetAlignment == 0);
    13163  }
    13164  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_STORAGE_BUFFER_BIT) != 0)
    13165  {
    13166  VMA_ASSERT(vkMemReq.alignment %
    13167  allocator->m_PhysicalDeviceProperties.limits.minStorageBufferOffsetAlignment == 0);
    13168  }
    13169 
    13170  // 3. Allocate memory using allocator.
    13171  res = allocator->AllocateMemory(
    13172  vkMemReq,
    13173  requiresDedicatedAllocation,
    13174  prefersDedicatedAllocation,
    13175  *pBuffer, // dedicatedBuffer
    13176  VK_NULL_HANDLE, // dedicatedImage
    13177  *pAllocationCreateInfo,
    13178  VMA_SUBALLOCATION_TYPE_BUFFER,
    13179  pAllocation);
    13180 
    13181 #if VMA_RECORDING_ENABLED
    13182  if(allocator->GetRecorder() != VMA_NULL)
    13183  {
    13184  allocator->GetRecorder()->RecordCreateBuffer(
    13185  allocator->GetCurrentFrameIndex(),
    13186  *pBufferCreateInfo,
    13187  *pAllocationCreateInfo,
    13188  *pAllocation);
    13189  }
    13190 #endif
    13191 
    13192  if(res >= 0)
    13193  {
    13194  // 3. Bind buffer with memory.
    13195  res = allocator->BindBufferMemory(*pAllocation, *pBuffer);
    13196  if(res >= 0)
    13197  {
    13198  // All steps succeeded.
    13199  #if VMA_STATS_STRING_ENABLED
    13200  (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage);
    13201  #endif
    13202  if(pAllocationInfo != VMA_NULL)
    13203  {
    13204  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    13205  }
    13206 
    13207  return VK_SUCCESS;
    13208  }
    13209  allocator->FreeMemory(*pAllocation);
    13210  *pAllocation = VK_NULL_HANDLE;
    13211  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
    13212  *pBuffer = VK_NULL_HANDLE;
    13213  return res;
    13214  }
    13215  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
    13216  *pBuffer = VK_NULL_HANDLE;
    13217  return res;
    13218  }
    13219  return res;
    13220 }
    13221 
    13222 void vmaDestroyBuffer(
    13223  VmaAllocator allocator,
    13224  VkBuffer buffer,
    13225  VmaAllocation allocation)
    13226 {
    13227  VMA_ASSERT(allocator);
    13228 
    13229  if(buffer == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
    13230  {
    13231  return;
    13232  }
    13233 
    13234  VMA_DEBUG_LOG("vmaDestroyBuffer");
    13235 
    13236  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13237 
    13238 #if VMA_RECORDING_ENABLED
    13239  if(allocator->GetRecorder() != VMA_NULL)
    13240  {
    13241  allocator->GetRecorder()->RecordDestroyBuffer(
    13242  allocator->GetCurrentFrameIndex(),
    13243  allocation);
    13244  }
    13245 #endif
    13246 
    13247  if(buffer != VK_NULL_HANDLE)
    13248  {
    13249  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks());
    13250  }
    13251 
    13252  if(allocation != VK_NULL_HANDLE)
    13253  {
    13254  allocator->FreeMemory(allocation);
    13255  }
    13256 }
    13257 
    13258 VkResult vmaCreateImage(
    13259  VmaAllocator allocator,
    13260  const VkImageCreateInfo* pImageCreateInfo,
    13261  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    13262  VkImage* pImage,
    13263  VmaAllocation* pAllocation,
    13264  VmaAllocationInfo* pAllocationInfo)
    13265 {
    13266  VMA_ASSERT(allocator && pImageCreateInfo && pAllocationCreateInfo && pImage && pAllocation);
    13267 
    13268  VMA_DEBUG_LOG("vmaCreateImage");
    13269 
    13270  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13271 
    13272  *pImage = VK_NULL_HANDLE;
    13273  *pAllocation = VK_NULL_HANDLE;
    13274 
    13275  // 1. Create VkImage.
    13276  VkResult res = (*allocator->GetVulkanFunctions().vkCreateImage)(
    13277  allocator->m_hDevice,
    13278  pImageCreateInfo,
    13279  allocator->GetAllocationCallbacks(),
    13280  pImage);
    13281  if(res >= 0)
    13282  {
    13283  VmaSuballocationType suballocType = pImageCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ?
    13284  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL :
    13285  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR;
    13286 
    13287  // 2. Allocate memory using allocator.
    13288  VkMemoryRequirements vkMemReq = {};
    13289  bool requiresDedicatedAllocation = false;
    13290  bool prefersDedicatedAllocation = false;
    13291  allocator->GetImageMemoryRequirements(*pImage, vkMemReq,
    13292  requiresDedicatedAllocation, prefersDedicatedAllocation);
    13293 
    13294  res = allocator->AllocateMemory(
    13295  vkMemReq,
    13296  requiresDedicatedAllocation,
    13297  prefersDedicatedAllocation,
    13298  VK_NULL_HANDLE, // dedicatedBuffer
    13299  *pImage, // dedicatedImage
    13300  *pAllocationCreateInfo,
    13301  suballocType,
    13302  pAllocation);
    13303 
    13304 #if VMA_RECORDING_ENABLED
    13305  if(allocator->GetRecorder() != VMA_NULL)
    13306  {
    13307  allocator->GetRecorder()->RecordCreateImage(
    13308  allocator->GetCurrentFrameIndex(),
    13309  *pImageCreateInfo,
    13310  *pAllocationCreateInfo,
    13311  *pAllocation);
    13312  }
    13313 #endif
    13314 
    13315  if(res >= 0)
    13316  {
    13317  // 3. Bind image with memory.
    13318  res = allocator->BindImageMemory(*pAllocation, *pImage);
    13319  if(res >= 0)
    13320  {
    13321  // All steps succeeded.
    13322  #if VMA_STATS_STRING_ENABLED
    13323  (*pAllocation)->InitBufferImageUsage(pImageCreateInfo->usage);
    13324  #endif
    13325  if(pAllocationInfo != VMA_NULL)
    13326  {
    13327  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    13328  }
    13329 
    13330  return VK_SUCCESS;
    13331  }
    13332  allocator->FreeMemory(*pAllocation);
    13333  *pAllocation = VK_NULL_HANDLE;
    13334  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
    13335  *pImage = VK_NULL_HANDLE;
    13336  return res;
    13337  }
    13338  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
    13339  *pImage = VK_NULL_HANDLE;
    13340  return res;
    13341  }
    13342  return res;
    13343 }
    13344 
    13345 void vmaDestroyImage(
    13346  VmaAllocator allocator,
    13347  VkImage image,
    13348  VmaAllocation allocation)
    13349 {
    13350  VMA_ASSERT(allocator);
    13351 
    13352  if(image == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
    13353  {
    13354  return;
    13355  }
    13356 
    13357  VMA_DEBUG_LOG("vmaDestroyImage");
    13358 
    13359  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13360 
    13361 #if VMA_RECORDING_ENABLED
    13362  if(allocator->GetRecorder() != VMA_NULL)
    13363  {
    13364  allocator->GetRecorder()->RecordDestroyImage(
    13365  allocator->GetCurrentFrameIndex(),
    13366  allocation);
    13367  }
    13368 #endif
    13369 
    13370  if(image != VK_NULL_HANDLE)
    13371  {
    13372  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, image, allocator->GetAllocationCallbacks());
    13373  }
    13374  if(allocation != VK_NULL_HANDLE)
    13375  {
    13376  allocator->FreeMemory(allocation);
    13377  }
    13378 }
    13379 
    13380 #endif // #ifdef VMA_IMPLEMENTATION
    VmaVulkanFunctions::vkGetPhysicalDeviceProperties
    PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties
    Definition: vk_mem_alloc.h:1429
    -
    VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT
    Set this flag if the allocation should have its own memory block.
    Definition: vk_mem_alloc.h:1742
    +Go to the documentation of this file.
    1 //
    2 // Copyright (c) 2017-2018 Advanced Micro Devices, Inc. All rights reserved.
    3 //
    4 // Permission is hereby granted, free of charge, to any person obtaining a copy
    5 // of this software and associated documentation files (the "Software"), to deal
    6 // in the Software without restriction, including without limitation the rights
    7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    8 // copies of the Software, and to permit persons to whom the Software is
    9 // furnished to do so, subject to the following conditions:
    10 //
    11 // The above copyright notice and this permission notice shall be included in
    12 // all copies or substantial portions of the Software.
    13 //
    14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    20 // THE SOFTWARE.
    21 //
    22 
    23 #ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H
    24 #define AMD_VULKAN_MEMORY_ALLOCATOR_H
    25 
    26 #ifdef __cplusplus
    27 extern "C" {
    28 #endif
    29 
    1343 #include <vulkan/vulkan.h>
    1344 
    1345 #if !defined(VMA_DEDICATED_ALLOCATION)
    1346  #if VK_KHR_get_memory_requirements2 && VK_KHR_dedicated_allocation
    1347  #define VMA_DEDICATED_ALLOCATION 1
    1348  #else
    1349  #define VMA_DEDICATED_ALLOCATION 0
    1350  #endif
    1351 #endif
    1352 
    1362 VK_DEFINE_HANDLE(VmaAllocator)
    1363 
    1364 typedef void (VKAPI_PTR *PFN_vmaAllocateDeviceMemoryFunction)(
    1366  VmaAllocator allocator,
    1367  uint32_t memoryType,
    1368  VkDeviceMemory memory,
    1369  VkDeviceSize size);
    1371 typedef void (VKAPI_PTR *PFN_vmaFreeDeviceMemoryFunction)(
    1372  VmaAllocator allocator,
    1373  uint32_t memoryType,
    1374  VkDeviceMemory memory,
    1375  VkDeviceSize size);
    1376 
    1384 typedef struct VmaDeviceMemoryCallbacks {
    1386  PFN_vmaAllocateDeviceMemoryFunction pfnAllocate;
    1388  PFN_vmaFreeDeviceMemoryFunction pfnFree;
    1389 } VmaDeviceMemoryCallbacks;
    1390 
    1392 typedef enum VmaAllocatorCreateFlagBits {
    1397  VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT = 0x00000001,
    1419  VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT = 0x00000002,
    1420 
    1421  VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1422 } VmaAllocatorCreateFlagBits;
    1423 typedef VkFlags VmaAllocatorCreateFlags;
    1424 
    1429 typedef struct VmaVulkanFunctions {
    1430  PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties;
    1431  PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties;
    1432  PFN_vkAllocateMemory vkAllocateMemory;
    1433  PFN_vkFreeMemory vkFreeMemory;
    1434  PFN_vkMapMemory vkMapMemory;
    1435  PFN_vkUnmapMemory vkUnmapMemory;
    1436  PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges;
    1437  PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges;
    1438  PFN_vkBindBufferMemory vkBindBufferMemory;
    1439  PFN_vkBindImageMemory vkBindImageMemory;
    1440  PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements;
    1441  PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements;
    1442  PFN_vkCreateBuffer vkCreateBuffer;
    1443  PFN_vkDestroyBuffer vkDestroyBuffer;
    1444  PFN_vkCreateImage vkCreateImage;
    1445  PFN_vkDestroyImage vkDestroyImage;
    1446 #if VMA_DEDICATED_ALLOCATION
    1447  PFN_vkGetBufferMemoryRequirements2KHR vkGetBufferMemoryRequirements2KHR;
    1448  PFN_vkGetImageMemoryRequirements2KHR vkGetImageMemoryRequirements2KHR;
    1449 #endif
    1450 } VmaVulkanFunctions;
    1451 
    1453 typedef enum VmaRecordFlagBits {
    1459  VMA_RECORD_FLUSH_AFTER_CALL_BIT = 0x00000001,
    1460 
    1461  VMA_RECORD_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1462 } VmaRecordFlagBits;
    1463 typedef VkFlags VmaRecordFlags;
    1464 
    1465 /*
    1466 Define this macro to 0/1 to disable/enable support for recording functionality,
    1467 available through VmaAllocatorCreateInfo::pRecordSettings.
    1468 */
    1469 #ifndef VMA_RECORDING_ENABLED
    1470  #ifdef _WIN32
    1471  #define VMA_RECORDING_ENABLED 1
    1472  #else
    1473  #define VMA_RECORDING_ENABLED 0
    1474  #endif
    1475 #endif
    1476 
    1478 typedef struct VmaRecordSettings
    1479 {
    1481  VmaRecordFlags flags;
    1489  const char* pFilePath;
    1490 } VmaRecordSettings;
    1491 
    1493 typedef struct VmaAllocatorCreateInfo
    1494 {
    1496  VmaAllocatorCreateFlags flags;
    1498 
    1499  VkPhysicalDevice physicalDevice;
    1501 
    1502  VkDevice device;
    1504 
    1505  VkDeviceSize preferredLargeHeapBlockSize;
    1507 
    1508  const VkAllocationCallbacks* pAllocationCallbacks;
    1510 
    1511  const VmaDeviceMemoryCallbacks* pDeviceMemoryCallbacks;
    1525  uint32_t frameInUseCount;
    1549  const VkDeviceSize* pHeapSizeLimit;
    1561  const VmaVulkanFunctions* pVulkanFunctions;
    1568  const VmaRecordSettings* pRecordSettings;
    1569 } VmaAllocatorCreateInfo;
    1570 
    1572 VkResult vmaCreateAllocator(
    1573  const VmaAllocatorCreateInfo* pCreateInfo,
    1574  VmaAllocator* pAllocator);
    1575 
    1577 void vmaDestroyAllocator(
    1578  VmaAllocator allocator);
    1579 
    1584 void vmaGetPhysicalDeviceProperties(
    1585  VmaAllocator allocator,
    1586  const VkPhysicalDeviceProperties** ppPhysicalDeviceProperties);
    1587 
    1592 void vmaGetMemoryProperties(
    1593  VmaAllocator allocator,
    1594  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties);
    1595 
    1602 void vmaGetMemoryTypeProperties(
    1603  VmaAllocator allocator,
    1604  uint32_t memoryTypeIndex,
    1605  VkMemoryPropertyFlags* pFlags);
    1606 
    1615 void vmaSetCurrentFrameIndex(
    1616  VmaAllocator allocator,
    1617  uint32_t frameIndex);
    1618 
    1621 typedef struct VmaStatInfo
    1622 {
    1624  uint32_t blockCount;
    1626  uint32_t allocationCount;
    1628  uint32_t unusedRangeCount;
    1630  VkDeviceSize usedBytes;
    1632  VkDeviceSize unusedBytes;
    1633  VkDeviceSize allocationSizeMin, allocationSizeAvg, allocationSizeMax;
    1634  VkDeviceSize unusedRangeSizeMin, unusedRangeSizeAvg, unusedRangeSizeMax;
    1635 } VmaStatInfo;
    1636 
    1638 typedef struct VmaStats
    1639 {
    1640  VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES];
    1641  VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS];
    1642  VmaStatInfo total;
    1643 } VmaStats;
    1644 
    1646 void vmaCalculateStats(
    1647  VmaAllocator allocator,
    1648  VmaStats* pStats);
    1649 
    1650 #define VMA_STATS_STRING_ENABLED 1
    1651 
    1652 #if VMA_STATS_STRING_ENABLED
    1653 
    1655 
    1657 void vmaBuildStatsString(
    1658  VmaAllocator allocator,
    1659  char** ppStatsString,
    1660  VkBool32 detailedMap);
    1661 
    1662 void vmaFreeStatsString(
    1663  VmaAllocator allocator,
    1664  char* pStatsString);
    1665 
    1666 #endif // #if VMA_STATS_STRING_ENABLED
    1667 
    1676 VK_DEFINE_HANDLE(VmaPool)
    1677 
    1678 typedef enum VmaMemoryUsage
    1679 {
    1683  VMA_MEMORY_USAGE_UNKNOWN = 0,
    1700  VMA_MEMORY_USAGE_GPU_ONLY = 1,
    1710  VMA_MEMORY_USAGE_CPU_ONLY = 2,
    1717  VMA_MEMORY_USAGE_CPU_TO_GPU = 3,
    1726  VMA_MEMORY_USAGE_GPU_TO_CPU = 4,
    1727  VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF
    1728 } VmaMemoryUsage;
    1729 
    1731 typedef enum VmaAllocationCreateFlagBits {
    1743  VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT = 0x00000001,
    1744 
    1754  VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT = 0x00000002,
    1767  VMA_ALLOCATION_CREATE_MAPPED_BIT = 0x00000004,
    1780  VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT = 0x00000008,
    1787  VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT = 0x00000010,
    1793  VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT = 0x00000020,
    1798  VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = 0x00000040,
    1799 
    1800  VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1801 } VmaAllocationCreateFlagBits;
    1802 typedef VkFlags VmaAllocationCreateFlags;
    1803 
    1804 typedef struct VmaAllocationCreateInfo
    1805 {
    1807  VmaAllocationCreateFlags flags;
    1813  VmaMemoryUsage usage;
    1818  VkMemoryPropertyFlags requiredFlags;
    1823  VkMemoryPropertyFlags preferredFlags;
    1831  uint32_t memoryTypeBits;
    1837  VmaPool pool;
    1844  void* pUserData;
    1845 } VmaAllocationCreateInfo;
    1846 
    1863 VkResult vmaFindMemoryTypeIndex(
    1864  VmaAllocator allocator,
    1865  uint32_t memoryTypeBits,
    1866  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1867  uint32_t* pMemoryTypeIndex);
    1868 
    1881 VkResult vmaFindMemoryTypeIndexForBufferInfo(
    1882  VmaAllocator allocator,
    1883  const VkBufferCreateInfo* pBufferCreateInfo,
    1884  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1885  uint32_t* pMemoryTypeIndex);
    1886 
    1899 VkResult vmaFindMemoryTypeIndexForImageInfo(
    1900  VmaAllocator allocator,
    1901  const VkImageCreateInfo* pImageCreateInfo,
    1902  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    1903  uint32_t* pMemoryTypeIndex);
    1904 
    1906 typedef enum VmaPoolCreateFlagBits {
    1924  VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002,
    1925 
    1939  VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004,
    1940 
    1941  VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
    1942 } VmaPoolCreateFlagBits;
    1943 typedef VkFlags VmaPoolCreateFlags;
    1944 
    1947 typedef struct VmaPoolCreateInfo {
    1950  uint32_t memoryTypeIndex;
    1953  VmaPoolCreateFlags flags;
    1958  VkDeviceSize blockSize;
    1963  size_t minBlockCount;
    1972  size_t maxBlockCount;
    1986  uint32_t frameInUseCount;
    1987 } VmaPoolCreateInfo;
    1988 
    1991 typedef struct VmaPoolStats {
    1994  VkDeviceSize size;
    1997  VkDeviceSize unusedSize;
    2000  size_t allocationCount;
    2003  size_t unusedRangeCount;
    2010  VkDeviceSize unusedRangeSizeMax;
    2011 } VmaPoolStats;
    2012 
    2019 VkResult vmaCreatePool(
    2020  VmaAllocator allocator,
    2021  const VmaPoolCreateInfo* pCreateInfo,
    2022  VmaPool* pPool);
    2023 
    2026 void vmaDestroyPool(
    2027  VmaAllocator allocator,
    2028  VmaPool pool);
    2029 
    2036 void vmaGetPoolStats(
    2037  VmaAllocator allocator,
    2038  VmaPool pool,
    2039  VmaPoolStats* pPoolStats);
    2040 
    2047 void vmaMakePoolAllocationsLost(
    2048  VmaAllocator allocator,
    2049  VmaPool pool,
    2050  size_t* pLostAllocationCount);
    2051 
    2066 VkResult vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool);
    2067 
    2092 VK_DEFINE_HANDLE(VmaAllocation)
    2093 
    2094 
    2096 typedef struct VmaAllocationInfo {
    2101  uint32_t memoryType;
    2110  VkDeviceMemory deviceMemory;
    2115  VkDeviceSize offset;
    2120  VkDeviceSize size;
    2129  void* pMappedData;
    2134  void* pUserData;
    2135 } VmaAllocationInfo;
    2136 
    2147 VkResult vmaAllocateMemory(
    2148  VmaAllocator allocator,
    2149  const VkMemoryRequirements* pVkMemoryRequirements,
    2150  const VmaAllocationCreateInfo* pCreateInfo,
    2151  VmaAllocation* pAllocation,
    2152  VmaAllocationInfo* pAllocationInfo);
    2153 
    2160 VkResult vmaAllocateMemoryForBuffer(
    2161  VmaAllocator allocator,
    2162  VkBuffer buffer,
    2163  const VmaAllocationCreateInfo* pCreateInfo,
    2164  VmaAllocation* pAllocation,
    2165  VmaAllocationInfo* pAllocationInfo);
    2166 
    2168 VkResult vmaAllocateMemoryForImage(
    2169  VmaAllocator allocator,
    2170  VkImage image,
    2171  const VmaAllocationCreateInfo* pCreateInfo,
    2172  VmaAllocation* pAllocation,
    2173  VmaAllocationInfo* pAllocationInfo);
    2174 
    2176 void vmaFreeMemory(
    2177  VmaAllocator allocator,
    2178  VmaAllocation allocation);
    2179 
    2196 void vmaGetAllocationInfo(
    2197  VmaAllocator allocator,
    2198  VmaAllocation allocation,
    2199  VmaAllocationInfo* pAllocationInfo);
    2200 
    2215 VkBool32 vmaTouchAllocation(
    2216  VmaAllocator allocator,
    2217  VmaAllocation allocation);
    2218 
    2232 void vmaSetAllocationUserData(
    2233  VmaAllocator allocator,
    2234  VmaAllocation allocation,
    2235  void* pUserData);
    2236 
    2247 void vmaCreateLostAllocation(
    2248  VmaAllocator allocator,
    2249  VmaAllocation* pAllocation);
    2250 
    2285 VkResult vmaMapMemory(
    2286  VmaAllocator allocator,
    2287  VmaAllocation allocation,
    2288  void** ppData);
    2289 
    2294 void vmaUnmapMemory(
    2295  VmaAllocator allocator,
    2296  VmaAllocation allocation);
    2297 
    2310 void vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    2311 
    2324 void vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    2325 
    2342 VkResult vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits);
    2343 
    2345 typedef struct VmaDefragmentationInfo {
    2350  VkDeviceSize maxBytesToMove;
    2355  uint32_t maxAllocationsToMove;
    2356 } VmaDefragmentationInfo;
    2357 
    2359 typedef struct VmaDefragmentationStats {
    2361  VkDeviceSize bytesMoved;
    2363  VkDeviceSize bytesFreed;
    2365  uint32_t allocationsMoved;
    2367  uint32_t deviceMemoryBlocksFreed;
    2368 } VmaDefragmentationStats;
    2369 
    2456 VkResult vmaDefragment(
    2457  VmaAllocator allocator,
    2458  VmaAllocation* pAllocations,
    2459  size_t allocationCount,
    2460  VkBool32* pAllocationsChanged,
    2461  const VmaDefragmentationInfo *pDefragmentationInfo,
    2462  VmaDefragmentationStats* pDefragmentationStats);
    2463 
    2476 VkResult vmaBindBufferMemory(
    2477  VmaAllocator allocator,
    2478  VmaAllocation allocation,
    2479  VkBuffer buffer);
    2480 
    2493 VkResult vmaBindImageMemory(
    2494  VmaAllocator allocator,
    2495  VmaAllocation allocation,
    2496  VkImage image);
    2497 
    2524 VkResult vmaCreateBuffer(
    2525  VmaAllocator allocator,
    2526  const VkBufferCreateInfo* pBufferCreateInfo,
    2527  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    2528  VkBuffer* pBuffer,
    2529  VmaAllocation* pAllocation,
    2530  VmaAllocationInfo* pAllocationInfo);
    2531 
    2543 void vmaDestroyBuffer(
    2544  VmaAllocator allocator,
    2545  VkBuffer buffer,
    2546  VmaAllocation allocation);
    2547 
    2549 VkResult vmaCreateImage(
    2550  VmaAllocator allocator,
    2551  const VkImageCreateInfo* pImageCreateInfo,
    2552  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    2553  VkImage* pImage,
    2554  VmaAllocation* pAllocation,
    2555  VmaAllocationInfo* pAllocationInfo);
    2556 
    2568 void vmaDestroyImage(
    2569  VmaAllocator allocator,
    2570  VkImage image,
    2571  VmaAllocation allocation);
    2572 
    2573 #ifdef __cplusplus
    2574 }
    2575 #endif
    2576 
    2577 #endif // AMD_VULKAN_MEMORY_ALLOCATOR_H
    2578 
    2579 // For Visual Studio IntelliSense.
    2580 #if defined(__cplusplus) && defined(__INTELLISENSE__)
    2581 #define VMA_IMPLEMENTATION
    2582 #endif
    2583 
    2584 #ifdef VMA_IMPLEMENTATION
    2585 #undef VMA_IMPLEMENTATION
    2586 
    2587 #include <cstdint>
    2588 #include <cstdlib>
    2589 #include <cstring>
    2590 
    2591 /*******************************************************************************
    2592 CONFIGURATION SECTION
    2593 
    2594 Define some of these macros before each #include of this header or change them
    2595 here if you need other then default behavior depending on your environment.
    2596 */
    2597 
    2598 /*
    2599 Define this macro to 1 to make the library fetch pointers to Vulkan functions
    2600 internally, like:
    2601 
    2602  vulkanFunctions.vkAllocateMemory = &vkAllocateMemory;
    2603 
    2604 Define to 0 if you are going to provide you own pointers to Vulkan functions via
    2605 VmaAllocatorCreateInfo::pVulkanFunctions.
    2606 */
    2607 #if !defined(VMA_STATIC_VULKAN_FUNCTIONS) && !defined(VK_NO_PROTOTYPES)
    2608 #define VMA_STATIC_VULKAN_FUNCTIONS 1
    2609 #endif
    2610 
    2611 // Define this macro to 1 to make the library use STL containers instead of its own implementation.
    2612 //#define VMA_USE_STL_CONTAINERS 1
    2613 
    2614 /* Set this macro to 1 to make the library including and using STL containers:
    2615 std::pair, std::vector, std::list, std::unordered_map.
    2616 
    2617 Set it to 0 or undefined to make the library using its own implementation of
    2618 the containers.
    2619 */
    2620 #if VMA_USE_STL_CONTAINERS
    2621  #define VMA_USE_STL_VECTOR 1
    2622  #define VMA_USE_STL_UNORDERED_MAP 1
    2623  #define VMA_USE_STL_LIST 1
    2624 #endif
    2625 
    2626 #if VMA_USE_STL_VECTOR
    2627  #include <vector>
    2628 #endif
    2629 
    2630 #if VMA_USE_STL_UNORDERED_MAP
    2631  #include <unordered_map>
    2632 #endif
    2633 
    2634 #if VMA_USE_STL_LIST
    2635  #include <list>
    2636 #endif
    2637 
    2638 /*
    2639 Following headers are used in this CONFIGURATION section only, so feel free to
    2640 remove them if not needed.
    2641 */
    2642 #include <cassert> // for assert
    2643 #include <algorithm> // for min, max
    2644 #include <mutex> // for std::mutex
    2645 #include <atomic> // for std::atomic
    2646 
    2647 #ifndef VMA_NULL
    2648  // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
    2649  #define VMA_NULL nullptr
    2650 #endif
    2651 
    2652 #if defined(__APPLE__) || defined(__ANDROID__)
    2653 #include <cstdlib>
    2654 void *aligned_alloc(size_t alignment, size_t size)
    2655 {
    2656  // alignment must be >= sizeof(void*)
    2657  if(alignment < sizeof(void*))
    2658  {
    2659  alignment = sizeof(void*);
    2660  }
    2661 
    2662  void *pointer;
    2663  if(posix_memalign(&pointer, alignment, size) == 0)
    2664  return pointer;
    2665  return VMA_NULL;
    2666 }
    2667 #endif
    2668 
    2669 // If your compiler is not compatible with C++11 and definition of
    2670 // aligned_alloc() function is missing, uncommeting following line may help:
    2671 
    2672 //#include <malloc.h>
    2673 
    2674 // Normal assert to check for programmer's errors, especially in Debug configuration.
    2675 #ifndef VMA_ASSERT
    2676  #ifdef _DEBUG
    2677  #define VMA_ASSERT(expr) assert(expr)
    2678  #else
    2679  #define VMA_ASSERT(expr)
    2680  #endif
    2681 #endif
    2682 
    2683 // Assert that will be called very often, like inside data structures e.g. operator[].
    2684 // Making it non-empty can make program slow.
    2685 #ifndef VMA_HEAVY_ASSERT
    2686  #ifdef _DEBUG
    2687  #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr)
    2688  #else
    2689  #define VMA_HEAVY_ASSERT(expr)
    2690  #endif
    2691 #endif
    2692 
    2693 #ifndef VMA_ALIGN_OF
    2694  #define VMA_ALIGN_OF(type) (__alignof(type))
    2695 #endif
    2696 
    2697 #ifndef VMA_SYSTEM_ALIGNED_MALLOC
    2698  #if defined(_WIN32)
    2699  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (_aligned_malloc((size), (alignment)))
    2700  #else
    2701  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (aligned_alloc((alignment), (size) ))
    2702  #endif
    2703 #endif
    2704 
    2705 #ifndef VMA_SYSTEM_FREE
    2706  #if defined(_WIN32)
    2707  #define VMA_SYSTEM_FREE(ptr) _aligned_free(ptr)
    2708  #else
    2709  #define VMA_SYSTEM_FREE(ptr) free(ptr)
    2710  #endif
    2711 #endif
    2712 
    2713 #ifndef VMA_MIN
    2714  #define VMA_MIN(v1, v2) (std::min((v1), (v2)))
    2715 #endif
    2716 
    2717 #ifndef VMA_MAX
    2718  #define VMA_MAX(v1, v2) (std::max((v1), (v2)))
    2719 #endif
    2720 
    2721 #ifndef VMA_SWAP
    2722  #define VMA_SWAP(v1, v2) std::swap((v1), (v2))
    2723 #endif
    2724 
    2725 #ifndef VMA_SORT
    2726  #define VMA_SORT(beg, end, cmp) std::sort(beg, end, cmp)
    2727 #endif
    2728 
    2729 #ifndef VMA_DEBUG_LOG
    2730  #define VMA_DEBUG_LOG(format, ...)
    2731  /*
    2732  #define VMA_DEBUG_LOG(format, ...) do { \
    2733  printf(format, __VA_ARGS__); \
    2734  printf("\n"); \
    2735  } while(false)
    2736  */
    2737 #endif
    2738 
    2739 // Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString.
    2740 #if VMA_STATS_STRING_ENABLED
    2741  static inline void VmaUint32ToStr(char* outStr, size_t strLen, uint32_t num)
    2742  {
    2743  snprintf(outStr, strLen, "%u", static_cast<unsigned int>(num));
    2744  }
    2745  static inline void VmaUint64ToStr(char* outStr, size_t strLen, uint64_t num)
    2746  {
    2747  snprintf(outStr, strLen, "%llu", static_cast<unsigned long long>(num));
    2748  }
    2749  static inline void VmaPtrToStr(char* outStr, size_t strLen, const void* ptr)
    2750  {
    2751  snprintf(outStr, strLen, "%p", ptr);
    2752  }
    2753 #endif
    2754 
    2755 #ifndef VMA_MUTEX
    2756  class VmaMutex
    2757  {
    2758  public:
    2759  VmaMutex() { }
    2760  ~VmaMutex() { }
    2761  void Lock() { m_Mutex.lock(); }
    2762  void Unlock() { m_Mutex.unlock(); }
    2763  private:
    2764  std::mutex m_Mutex;
    2765  };
    2766  #define VMA_MUTEX VmaMutex
    2767 #endif
    2768 
    2769 /*
    2770 If providing your own implementation, you need to implement a subset of std::atomic:
    2771 
    2772 - Constructor(uint32_t desired)
    2773 - uint32_t load() const
    2774 - void store(uint32_t desired)
    2775 - bool compare_exchange_weak(uint32_t& expected, uint32_t desired)
    2776 */
    2777 #ifndef VMA_ATOMIC_UINT32
    2778  #define VMA_ATOMIC_UINT32 std::atomic<uint32_t>
    2779 #endif
    2780 
    2781 #ifndef VMA_BEST_FIT
    2782 
    2794  #define VMA_BEST_FIT (1)
    2795 #endif
    2796 
    2797 #ifndef VMA_DEBUG_ALWAYS_DEDICATED_MEMORY
    2798 
    2802  #define VMA_DEBUG_ALWAYS_DEDICATED_MEMORY (0)
    2803 #endif
    2804 
    2805 #ifndef VMA_DEBUG_ALIGNMENT
    2806 
    2810  #define VMA_DEBUG_ALIGNMENT (1)
    2811 #endif
    2812 
    2813 #ifndef VMA_DEBUG_MARGIN
    2814 
    2818  #define VMA_DEBUG_MARGIN (0)
    2819 #endif
    2820 
    2821 #ifndef VMA_DEBUG_INITIALIZE_ALLOCATIONS
    2822 
    2826  #define VMA_DEBUG_INITIALIZE_ALLOCATIONS (0)
    2827 #endif
    2828 
    2829 #ifndef VMA_DEBUG_DETECT_CORRUPTION
    2830 
    2835  #define VMA_DEBUG_DETECT_CORRUPTION (0)
    2836 #endif
    2837 
    2838 #ifndef VMA_DEBUG_GLOBAL_MUTEX
    2839 
    2843  #define VMA_DEBUG_GLOBAL_MUTEX (0)
    2844 #endif
    2845 
    2846 #ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY
    2847 
    2851  #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1)
    2852 #endif
    2853 
    2854 #ifndef VMA_SMALL_HEAP_MAX_SIZE
    2855  #define VMA_SMALL_HEAP_MAX_SIZE (1024ull * 1024 * 1024)
    2857 #endif
    2858 
    2859 #ifndef VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE
    2860  #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256ull * 1024 * 1024)
    2862 #endif
    2863 
    2864 #ifndef VMA_CLASS_NO_COPY
    2865  #define VMA_CLASS_NO_COPY(className) \
    2866  private: \
    2867  className(const className&) = delete; \
    2868  className& operator=(const className&) = delete;
    2869 #endif
    2870 
    2871 static const uint32_t VMA_FRAME_INDEX_LOST = UINT32_MAX;
    2872 
    2873 // Decimal 2139416166, float NaN, little-endian binary 66 E6 84 7F.
    2874 static const uint32_t VMA_CORRUPTION_DETECTION_MAGIC_VALUE = 0x7F84E666;
    2875 
    2876 static const uint8_t VMA_ALLOCATION_FILL_PATTERN_CREATED = 0xDC;
    2877 static const uint8_t VMA_ALLOCATION_FILL_PATTERN_DESTROYED = 0xEF;
    2878 
    2879 /*******************************************************************************
    2880 END OF CONFIGURATION
    2881 */
    2882 
    2883 static VkAllocationCallbacks VmaEmptyAllocationCallbacks = {
    2884  VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL };
    2885 
    2886 // Returns number of bits set to 1 in (v).
    2887 static inline uint32_t VmaCountBitsSet(uint32_t v)
    2888 {
    2889  uint32_t c = v - ((v >> 1) & 0x55555555);
    2890  c = ((c >> 2) & 0x33333333) + (c & 0x33333333);
    2891  c = ((c >> 4) + c) & 0x0F0F0F0F;
    2892  c = ((c >> 8) + c) & 0x00FF00FF;
    2893  c = ((c >> 16) + c) & 0x0000FFFF;
    2894  return c;
    2895 }
    2896 
    2897 // Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16.
    2898 // Use types like uint32_t, uint64_t as T.
    2899 template <typename T>
    2900 static inline T VmaAlignUp(T val, T align)
    2901 {
    2902  return (val + align - 1) / align * align;
    2903 }
    2904 // Aligns given value down to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 8.
    2905 // Use types like uint32_t, uint64_t as T.
    2906 template <typename T>
    2907 static inline T VmaAlignDown(T val, T align)
    2908 {
    2909  return val / align * align;
    2910 }
    2911 
    2912 // Division with mathematical rounding to nearest number.
    2913 template <typename T>
    2914 inline T VmaRoundDiv(T x, T y)
    2915 {
    2916  return (x + (y / (T)2)) / y;
    2917 }
    2918 
    2919 static inline bool VmaStrIsEmpty(const char* pStr)
    2920 {
    2921  return pStr == VMA_NULL || *pStr == '\0';
    2922 }
    2923 
    2924 #ifndef VMA_SORT
    2925 
    2926 template<typename Iterator, typename Compare>
    2927 Iterator VmaQuickSortPartition(Iterator beg, Iterator end, Compare cmp)
    2928 {
    2929  Iterator centerValue = end; --centerValue;
    2930  Iterator insertIndex = beg;
    2931  for(Iterator memTypeIndex = beg; memTypeIndex < centerValue; ++memTypeIndex)
    2932  {
    2933  if(cmp(*memTypeIndex, *centerValue))
    2934  {
    2935  if(insertIndex != memTypeIndex)
    2936  {
    2937  VMA_SWAP(*memTypeIndex, *insertIndex);
    2938  }
    2939  ++insertIndex;
    2940  }
    2941  }
    2942  if(insertIndex != centerValue)
    2943  {
    2944  VMA_SWAP(*insertIndex, *centerValue);
    2945  }
    2946  return insertIndex;
    2947 }
    2948 
    2949 template<typename Iterator, typename Compare>
    2950 void VmaQuickSort(Iterator beg, Iterator end, Compare cmp)
    2951 {
    2952  if(beg < end)
    2953  {
    2954  Iterator it = VmaQuickSortPartition<Iterator, Compare>(beg, end, cmp);
    2955  VmaQuickSort<Iterator, Compare>(beg, it, cmp);
    2956  VmaQuickSort<Iterator, Compare>(it + 1, end, cmp);
    2957  }
    2958 }
    2959 
    2960 #define VMA_SORT(beg, end, cmp) VmaQuickSort(beg, end, cmp)
    2961 
    2962 #endif // #ifndef VMA_SORT
    2963 
    2964 /*
    2965 Returns true if two memory blocks occupy overlapping pages.
    2966 ResourceA must be in less memory offset than ResourceB.
    2967 
    2968 Algorithm is based on "Vulkan 1.0.39 - A Specification (with all registered Vulkan extensions)"
    2969 chapter 11.6 "Resource Memory Association", paragraph "Buffer-Image Granularity".
    2970 */
    2971 static inline bool VmaBlocksOnSamePage(
    2972  VkDeviceSize resourceAOffset,
    2973  VkDeviceSize resourceASize,
    2974  VkDeviceSize resourceBOffset,
    2975  VkDeviceSize pageSize)
    2976 {
    2977  VMA_ASSERT(resourceAOffset + resourceASize <= resourceBOffset && resourceASize > 0 && pageSize > 0);
    2978  VkDeviceSize resourceAEnd = resourceAOffset + resourceASize - 1;
    2979  VkDeviceSize resourceAEndPage = resourceAEnd & ~(pageSize - 1);
    2980  VkDeviceSize resourceBStart = resourceBOffset;
    2981  VkDeviceSize resourceBStartPage = resourceBStart & ~(pageSize - 1);
    2982  return resourceAEndPage == resourceBStartPage;
    2983 }
    2984 
    2985 enum VmaSuballocationType
    2986 {
    2987  VMA_SUBALLOCATION_TYPE_FREE = 0,
    2988  VMA_SUBALLOCATION_TYPE_UNKNOWN = 1,
    2989  VMA_SUBALLOCATION_TYPE_BUFFER = 2,
    2990  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN = 3,
    2991  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR = 4,
    2992  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL = 5,
    2993  VMA_SUBALLOCATION_TYPE_MAX_ENUM = 0x7FFFFFFF
    2994 };
    2995 
    2996 /*
    2997 Returns true if given suballocation types could conflict and must respect
    2998 VkPhysicalDeviceLimits::bufferImageGranularity. They conflict if one is buffer
    2999 or linear image and another one is optimal image. If type is unknown, behave
    3000 conservatively.
    3001 */
    3002 static inline bool VmaIsBufferImageGranularityConflict(
    3003  VmaSuballocationType suballocType1,
    3004  VmaSuballocationType suballocType2)
    3005 {
    3006  if(suballocType1 > suballocType2)
    3007  {
    3008  VMA_SWAP(suballocType1, suballocType2);
    3009  }
    3010 
    3011  switch(suballocType1)
    3012  {
    3013  case VMA_SUBALLOCATION_TYPE_FREE:
    3014  return false;
    3015  case VMA_SUBALLOCATION_TYPE_UNKNOWN:
    3016  return true;
    3017  case VMA_SUBALLOCATION_TYPE_BUFFER:
    3018  return
    3019  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
    3020  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3021  case VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN:
    3022  return
    3023  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
    3024  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR ||
    3025  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3026  case VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR:
    3027  return
    3028  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
    3029  case VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL:
    3030  return false;
    3031  default:
    3032  VMA_ASSERT(0);
    3033  return true;
    3034  }
    3035 }
    3036 
    3037 static void VmaWriteMagicValue(void* pData, VkDeviceSize offset)
    3038 {
    3039  uint32_t* pDst = (uint32_t*)((char*)pData + offset);
    3040  const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
    3041  for(size_t i = 0; i < numberCount; ++i, ++pDst)
    3042  {
    3043  *pDst = VMA_CORRUPTION_DETECTION_MAGIC_VALUE;
    3044  }
    3045 }
    3046 
    3047 static bool VmaValidateMagicValue(const void* pData, VkDeviceSize offset)
    3048 {
    3049  const uint32_t* pSrc = (const uint32_t*)((const char*)pData + offset);
    3050  const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
    3051  for(size_t i = 0; i < numberCount; ++i, ++pSrc)
    3052  {
    3053  if(*pSrc != VMA_CORRUPTION_DETECTION_MAGIC_VALUE)
    3054  {
    3055  return false;
    3056  }
    3057  }
    3058  return true;
    3059 }
    3060 
    3061 // Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
    3062 struct VmaMutexLock
    3063 {
    3064  VMA_CLASS_NO_COPY(VmaMutexLock)
    3065 public:
    3066  VmaMutexLock(VMA_MUTEX& mutex, bool useMutex) :
    3067  m_pMutex(useMutex ? &mutex : VMA_NULL)
    3068  {
    3069  if(m_pMutex)
    3070  {
    3071  m_pMutex->Lock();
    3072  }
    3073  }
    3074 
    3075  ~VmaMutexLock()
    3076  {
    3077  if(m_pMutex)
    3078  {
    3079  m_pMutex->Unlock();
    3080  }
    3081  }
    3082 
    3083 private:
    3084  VMA_MUTEX* m_pMutex;
    3085 };
    3086 
    3087 #if VMA_DEBUG_GLOBAL_MUTEX
    3088  static VMA_MUTEX gDebugGlobalMutex;
    3089  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex, true);
    3090 #else
    3091  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK
    3092 #endif
    3093 
    3094 // Minimum size of a free suballocation to register it in the free suballocation collection.
    3095 static const VkDeviceSize VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER = 16;
    3096 
    3097 /*
    3098 Performs binary search and returns iterator to first element that is greater or
    3099 equal to (key), according to comparison (cmp).
    3100 
    3101 Cmp should return true if first argument is less than second argument.
    3102 
    3103 Returned value is the found element, if present in the collection or place where
    3104 new element with value (key) should be inserted.
    3105 */
    3106 template <typename CmpLess, typename IterT, typename KeyT>
    3107 static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, CmpLess cmp)
    3108 {
    3109  size_t down = 0, up = (end - beg);
    3110  while(down < up)
    3111  {
    3112  const size_t mid = (down + up) / 2;
    3113  if(cmp(*(beg+mid), key))
    3114  {
    3115  down = mid + 1;
    3116  }
    3117  else
    3118  {
    3119  up = mid;
    3120  }
    3121  }
    3122  return beg + down;
    3123 }
    3124 
    3126 // Memory allocation
    3127 
    3128 static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment)
    3129 {
    3130  if((pAllocationCallbacks != VMA_NULL) &&
    3131  (pAllocationCallbacks->pfnAllocation != VMA_NULL))
    3132  {
    3133  return (*pAllocationCallbacks->pfnAllocation)(
    3134  pAllocationCallbacks->pUserData,
    3135  size,
    3136  alignment,
    3137  VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
    3138  }
    3139  else
    3140  {
    3141  return VMA_SYSTEM_ALIGNED_MALLOC(size, alignment);
    3142  }
    3143 }
    3144 
    3145 static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr)
    3146 {
    3147  if((pAllocationCallbacks != VMA_NULL) &&
    3148  (pAllocationCallbacks->pfnFree != VMA_NULL))
    3149  {
    3150  (*pAllocationCallbacks->pfnFree)(pAllocationCallbacks->pUserData, ptr);
    3151  }
    3152  else
    3153  {
    3154  VMA_SYSTEM_FREE(ptr);
    3155  }
    3156 }
    3157 
    3158 template<typename T>
    3159 static T* VmaAllocate(const VkAllocationCallbacks* pAllocationCallbacks)
    3160 {
    3161  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T), VMA_ALIGN_OF(T));
    3162 }
    3163 
    3164 template<typename T>
    3165 static T* VmaAllocateArray(const VkAllocationCallbacks* pAllocationCallbacks, size_t count)
    3166 {
    3167  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T) * count, VMA_ALIGN_OF(T));
    3168 }
    3169 
    3170 #define vma_new(allocator, type) new(VmaAllocate<type>(allocator))(type)
    3171 
    3172 #define vma_new_array(allocator, type, count) new(VmaAllocateArray<type>((allocator), (count)))(type)
    3173 
    3174 template<typename T>
    3175 static void vma_delete(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr)
    3176 {
    3177  ptr->~T();
    3178  VmaFree(pAllocationCallbacks, ptr);
    3179 }
    3180 
    3181 template<typename T>
    3182 static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr, size_t count)
    3183 {
    3184  if(ptr != VMA_NULL)
    3185  {
    3186  for(size_t i = count; i--; )
    3187  {
    3188  ptr[i].~T();
    3189  }
    3190  VmaFree(pAllocationCallbacks, ptr);
    3191  }
    3192 }
    3193 
    3194 // STL-compatible allocator.
    3195 template<typename T>
    3196 class VmaStlAllocator
    3197 {
    3198 public:
    3199  const VkAllocationCallbacks* const m_pCallbacks;
    3200  typedef T value_type;
    3201 
    3202  VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) { }
    3203  template<typename U> VmaStlAllocator(const VmaStlAllocator<U>& src) : m_pCallbacks(src.m_pCallbacks) { }
    3204 
    3205  T* allocate(size_t n) { return VmaAllocateArray<T>(m_pCallbacks, n); }
    3206  void deallocate(T* p, size_t n) { VmaFree(m_pCallbacks, p); }
    3207 
    3208  template<typename U>
    3209  bool operator==(const VmaStlAllocator<U>& rhs) const
    3210  {
    3211  return m_pCallbacks == rhs.m_pCallbacks;
    3212  }
    3213  template<typename U>
    3214  bool operator!=(const VmaStlAllocator<U>& rhs) const
    3215  {
    3216  return m_pCallbacks != rhs.m_pCallbacks;
    3217  }
    3218 
    3219  VmaStlAllocator& operator=(const VmaStlAllocator& x) = delete;
    3220 };
    3221 
    3222 #if VMA_USE_STL_VECTOR
    3223 
    3224 #define VmaVector std::vector
    3225 
    3226 template<typename T, typename allocatorT>
    3227 static void VmaVectorInsert(std::vector<T, allocatorT>& vec, size_t index, const T& item)
    3228 {
    3229  vec.insert(vec.begin() + index, item);
    3230 }
    3231 
    3232 template<typename T, typename allocatorT>
    3233 static void VmaVectorRemove(std::vector<T, allocatorT>& vec, size_t index)
    3234 {
    3235  vec.erase(vec.begin() + index);
    3236 }
    3237 
    3238 #else // #if VMA_USE_STL_VECTOR
    3239 
    3240 /* Class with interface compatible with subset of std::vector.
    3241 T must be POD because constructors and destructors are not called and memcpy is
    3242 used for these objects. */
    3243 template<typename T, typename AllocatorT>
    3244 class VmaVector
    3245 {
    3246 public:
    3247  typedef T value_type;
    3248 
    3249  VmaVector(const AllocatorT& allocator) :
    3250  m_Allocator(allocator),
    3251  m_pArray(VMA_NULL),
    3252  m_Count(0),
    3253  m_Capacity(0)
    3254  {
    3255  }
    3256 
    3257  VmaVector(size_t count, const AllocatorT& allocator) :
    3258  m_Allocator(allocator),
    3259  m_pArray(count ? (T*)VmaAllocateArray<T>(allocator.m_pCallbacks, count) : VMA_NULL),
    3260  m_Count(count),
    3261  m_Capacity(count)
    3262  {
    3263  }
    3264 
    3265  VmaVector(const VmaVector<T, AllocatorT>& src) :
    3266  m_Allocator(src.m_Allocator),
    3267  m_pArray(src.m_Count ? (T*)VmaAllocateArray<T>(src.m_Allocator.m_pCallbacks, src.m_Count) : VMA_NULL),
    3268  m_Count(src.m_Count),
    3269  m_Capacity(src.m_Count)
    3270  {
    3271  if(m_Count != 0)
    3272  {
    3273  memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
    3274  }
    3275  }
    3276 
    3277  ~VmaVector()
    3278  {
    3279  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3280  }
    3281 
    3282  VmaVector& operator=(const VmaVector<T, AllocatorT>& rhs)
    3283  {
    3284  if(&rhs != this)
    3285  {
    3286  resize(rhs.m_Count);
    3287  if(m_Count != 0)
    3288  {
    3289  memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
    3290  }
    3291  }
    3292  return *this;
    3293  }
    3294 
    3295  bool empty() const { return m_Count == 0; }
    3296  size_t size() const { return m_Count; }
    3297  T* data() { return m_pArray; }
    3298  const T* data() const { return m_pArray; }
    3299 
    3300  T& operator[](size_t index)
    3301  {
    3302  VMA_HEAVY_ASSERT(index < m_Count);
    3303  return m_pArray[index];
    3304  }
    3305  const T& operator[](size_t index) const
    3306  {
    3307  VMA_HEAVY_ASSERT(index < m_Count);
    3308  return m_pArray[index];
    3309  }
    3310 
    3311  T& front()
    3312  {
    3313  VMA_HEAVY_ASSERT(m_Count > 0);
    3314  return m_pArray[0];
    3315  }
    3316  const T& front() const
    3317  {
    3318  VMA_HEAVY_ASSERT(m_Count > 0);
    3319  return m_pArray[0];
    3320  }
    3321  T& back()
    3322  {
    3323  VMA_HEAVY_ASSERT(m_Count > 0);
    3324  return m_pArray[m_Count - 1];
    3325  }
    3326  const T& back() const
    3327  {
    3328  VMA_HEAVY_ASSERT(m_Count > 0);
    3329  return m_pArray[m_Count - 1];
    3330  }
    3331 
    3332  void reserve(size_t newCapacity, bool freeMemory = false)
    3333  {
    3334  newCapacity = VMA_MAX(newCapacity, m_Count);
    3335 
    3336  if((newCapacity < m_Capacity) && !freeMemory)
    3337  {
    3338  newCapacity = m_Capacity;
    3339  }
    3340 
    3341  if(newCapacity != m_Capacity)
    3342  {
    3343  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator, newCapacity) : VMA_NULL;
    3344  if(m_Count != 0)
    3345  {
    3346  memcpy(newArray, m_pArray, m_Count * sizeof(T));
    3347  }
    3348  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3349  m_Capacity = newCapacity;
    3350  m_pArray = newArray;
    3351  }
    3352  }
    3353 
    3354  void resize(size_t newCount, bool freeMemory = false)
    3355  {
    3356  size_t newCapacity = m_Capacity;
    3357  if(newCount > m_Capacity)
    3358  {
    3359  newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8));
    3360  }
    3361  else if(freeMemory)
    3362  {
    3363  newCapacity = newCount;
    3364  }
    3365 
    3366  if(newCapacity != m_Capacity)
    3367  {
    3368  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator.m_pCallbacks, newCapacity) : VMA_NULL;
    3369  const size_t elementsToCopy = VMA_MIN(m_Count, newCount);
    3370  if(elementsToCopy != 0)
    3371  {
    3372  memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
    3373  }
    3374  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
    3375  m_Capacity = newCapacity;
    3376  m_pArray = newArray;
    3377  }
    3378 
    3379  m_Count = newCount;
    3380  }
    3381 
    3382  void clear(bool freeMemory = false)
    3383  {
    3384  resize(0, freeMemory);
    3385  }
    3386 
    3387  void insert(size_t index, const T& src)
    3388  {
    3389  VMA_HEAVY_ASSERT(index <= m_Count);
    3390  const size_t oldCount = size();
    3391  resize(oldCount + 1);
    3392  if(index < oldCount)
    3393  {
    3394  memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
    3395  }
    3396  m_pArray[index] = src;
    3397  }
    3398 
    3399  void remove(size_t index)
    3400  {
    3401  VMA_HEAVY_ASSERT(index < m_Count);
    3402  const size_t oldCount = size();
    3403  if(index < oldCount - 1)
    3404  {
    3405  memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
    3406  }
    3407  resize(oldCount - 1);
    3408  }
    3409 
    3410  void push_back(const T& src)
    3411  {
    3412  const size_t newIndex = size();
    3413  resize(newIndex + 1);
    3414  m_pArray[newIndex] = src;
    3415  }
    3416 
    3417  void pop_back()
    3418  {
    3419  VMA_HEAVY_ASSERT(m_Count > 0);
    3420  resize(size() - 1);
    3421  }
    3422 
    3423  void push_front(const T& src)
    3424  {
    3425  insert(0, src);
    3426  }
    3427 
    3428  void pop_front()
    3429  {
    3430  VMA_HEAVY_ASSERT(m_Count > 0);
    3431  remove(0);
    3432  }
    3433 
    3434  typedef T* iterator;
    3435 
    3436  iterator begin() { return m_pArray; }
    3437  iterator end() { return m_pArray + m_Count; }
    3438 
    3439 private:
    3440  AllocatorT m_Allocator;
    3441  T* m_pArray;
    3442  size_t m_Count;
    3443  size_t m_Capacity;
    3444 };
    3445 
    3446 template<typename T, typename allocatorT>
    3447 static void VmaVectorInsert(VmaVector<T, allocatorT>& vec, size_t index, const T& item)
    3448 {
    3449  vec.insert(index, item);
    3450 }
    3451 
    3452 template<typename T, typename allocatorT>
    3453 static void VmaVectorRemove(VmaVector<T, allocatorT>& vec, size_t index)
    3454 {
    3455  vec.remove(index);
    3456 }
    3457 
    3458 #endif // #if VMA_USE_STL_VECTOR
    3459 
    3460 template<typename CmpLess, typename VectorT>
    3461 size_t VmaVectorInsertSorted(VectorT& vector, const typename VectorT::value_type& value)
    3462 {
    3463  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
    3464  vector.data(),
    3465  vector.data() + vector.size(),
    3466  value,
    3467  CmpLess()) - vector.data();
    3468  VmaVectorInsert(vector, indexToInsert, value);
    3469  return indexToInsert;
    3470 }
    3471 
    3472 template<typename CmpLess, typename VectorT>
    3473 bool VmaVectorRemoveSorted(VectorT& vector, const typename VectorT::value_type& value)
    3474 {
    3475  CmpLess comparator;
    3476  typename VectorT::iterator it = VmaBinaryFindFirstNotLess(
    3477  vector.begin(),
    3478  vector.end(),
    3479  value,
    3480  comparator);
    3481  if((it != vector.end()) && !comparator(*it, value) && !comparator(value, *it))
    3482  {
    3483  size_t indexToRemove = it - vector.begin();
    3484  VmaVectorRemove(vector, indexToRemove);
    3485  return true;
    3486  }
    3487  return false;
    3488 }
    3489 
    3490 template<typename CmpLess, typename IterT, typename KeyT>
    3491 IterT VmaVectorFindSorted(const IterT& beg, const IterT& end, const KeyT& value)
    3492 {
    3493  CmpLess comparator;
    3494  typename IterT it = VmaBinaryFindFirstNotLess<CmpLess, IterT, KeyT>(
    3495  beg, end, value, comparator);
    3496  if(it == end ||
    3497  !comparator(*it, value) && !comparator(value, *it))
    3498  {
    3499  return it;
    3500  }
    3501  return end;
    3502 }
    3503 
    3505 // class VmaPoolAllocator
    3506 
    3507 /*
    3508 Allocator for objects of type T using a list of arrays (pools) to speed up
    3509 allocation. Number of elements that can be allocated is not bounded because
    3510 allocator can create multiple blocks.
    3511 */
    3512 template<typename T>
    3513 class VmaPoolAllocator
    3514 {
    3515  VMA_CLASS_NO_COPY(VmaPoolAllocator)
    3516 public:
    3517  VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock);
    3518  ~VmaPoolAllocator();
    3519  void Clear();
    3520  T* Alloc();
    3521  void Free(T* ptr);
    3522 
    3523 private:
    3524  union Item
    3525  {
    3526  uint32_t NextFreeIndex;
    3527  T Value;
    3528  };
    3529 
    3530  struct ItemBlock
    3531  {
    3532  Item* pItems;
    3533  uint32_t FirstFreeIndex;
    3534  };
    3535 
    3536  const VkAllocationCallbacks* m_pAllocationCallbacks;
    3537  size_t m_ItemsPerBlock;
    3538  VmaVector< ItemBlock, VmaStlAllocator<ItemBlock> > m_ItemBlocks;
    3539 
    3540  ItemBlock& CreateNewBlock();
    3541 };
    3542 
    3543 template<typename T>
    3544 VmaPoolAllocator<T>::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock) :
    3545  m_pAllocationCallbacks(pAllocationCallbacks),
    3546  m_ItemsPerBlock(itemsPerBlock),
    3547  m_ItemBlocks(VmaStlAllocator<ItemBlock>(pAllocationCallbacks))
    3548 {
    3549  VMA_ASSERT(itemsPerBlock > 0);
    3550 }
    3551 
    3552 template<typename T>
    3553 VmaPoolAllocator<T>::~VmaPoolAllocator()
    3554 {
    3555  Clear();
    3556 }
    3557 
    3558 template<typename T>
    3559 void VmaPoolAllocator<T>::Clear()
    3560 {
    3561  for(size_t i = m_ItemBlocks.size(); i--; )
    3562  vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemsPerBlock);
    3563  m_ItemBlocks.clear();
    3564 }
    3565 
    3566 template<typename T>
    3567 T* VmaPoolAllocator<T>::Alloc()
    3568 {
    3569  for(size_t i = m_ItemBlocks.size(); i--; )
    3570  {
    3571  ItemBlock& block = m_ItemBlocks[i];
    3572  // This block has some free items: Use first one.
    3573  if(block.FirstFreeIndex != UINT32_MAX)
    3574  {
    3575  Item* const pItem = &block.pItems[block.FirstFreeIndex];
    3576  block.FirstFreeIndex = pItem->NextFreeIndex;
    3577  return &pItem->Value;
    3578  }
    3579  }
    3580 
    3581  // No block has free item: Create new one and use it.
    3582  ItemBlock& newBlock = CreateNewBlock();
    3583  Item* const pItem = &newBlock.pItems[0];
    3584  newBlock.FirstFreeIndex = pItem->NextFreeIndex;
    3585  return &pItem->Value;
    3586 }
    3587 
    3588 template<typename T>
    3589 void VmaPoolAllocator<T>::Free(T* ptr)
    3590 {
    3591  // Search all memory blocks to find ptr.
    3592  for(size_t i = 0; i < m_ItemBlocks.size(); ++i)
    3593  {
    3594  ItemBlock& block = m_ItemBlocks[i];
    3595 
    3596  // Casting to union.
    3597  Item* pItemPtr;
    3598  memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
    3599 
    3600  // Check if pItemPtr is in address range of this block.
    3601  if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + m_ItemsPerBlock))
    3602  {
    3603  const uint32_t index = static_cast<uint32_t>(pItemPtr - block.pItems);
    3604  pItemPtr->NextFreeIndex = block.FirstFreeIndex;
    3605  block.FirstFreeIndex = index;
    3606  return;
    3607  }
    3608  }
    3609  VMA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
    3610 }
    3611 
    3612 template<typename T>
    3613 typename VmaPoolAllocator<T>::ItemBlock& VmaPoolAllocator<T>::CreateNewBlock()
    3614 {
    3615  ItemBlock newBlock = {
    3616  vma_new_array(m_pAllocationCallbacks, Item, m_ItemsPerBlock), 0 };
    3617 
    3618  m_ItemBlocks.push_back(newBlock);
    3619 
    3620  // Setup singly-linked list of all free items in this block.
    3621  for(uint32_t i = 0; i < m_ItemsPerBlock - 1; ++i)
    3622  newBlock.pItems[i].NextFreeIndex = i + 1;
    3623  newBlock.pItems[m_ItemsPerBlock - 1].NextFreeIndex = UINT32_MAX;
    3624  return m_ItemBlocks.back();
    3625 }
    3626 
    3628 // class VmaRawList, VmaList
    3629 
    3630 #if VMA_USE_STL_LIST
    3631 
    3632 #define VmaList std::list
    3633 
    3634 #else // #if VMA_USE_STL_LIST
    3635 
    3636 template<typename T>
    3637 struct VmaListItem
    3638 {
    3639  VmaListItem* pPrev;
    3640  VmaListItem* pNext;
    3641  T Value;
    3642 };
    3643 
    3644 // Doubly linked list.
    3645 template<typename T>
    3646 class VmaRawList
    3647 {
    3648  VMA_CLASS_NO_COPY(VmaRawList)
    3649 public:
    3650  typedef VmaListItem<T> ItemType;
    3651 
    3652  VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks);
    3653  ~VmaRawList();
    3654  void Clear();
    3655 
    3656  size_t GetCount() const { return m_Count; }
    3657  bool IsEmpty() const { return m_Count == 0; }
    3658 
    3659  ItemType* Front() { return m_pFront; }
    3660  const ItemType* Front() const { return m_pFront; }
    3661  ItemType* Back() { return m_pBack; }
    3662  const ItemType* Back() const { return m_pBack; }
    3663 
    3664  ItemType* PushBack();
    3665  ItemType* PushFront();
    3666  ItemType* PushBack(const T& value);
    3667  ItemType* PushFront(const T& value);
    3668  void PopBack();
    3669  void PopFront();
    3670 
    3671  // Item can be null - it means PushBack.
    3672  ItemType* InsertBefore(ItemType* pItem);
    3673  // Item can be null - it means PushFront.
    3674  ItemType* InsertAfter(ItemType* pItem);
    3675 
    3676  ItemType* InsertBefore(ItemType* pItem, const T& value);
    3677  ItemType* InsertAfter(ItemType* pItem, const T& value);
    3678 
    3679  void Remove(ItemType* pItem);
    3680 
    3681 private:
    3682  const VkAllocationCallbacks* const m_pAllocationCallbacks;
    3683  VmaPoolAllocator<ItemType> m_ItemAllocator;
    3684  ItemType* m_pFront;
    3685  ItemType* m_pBack;
    3686  size_t m_Count;
    3687 };
    3688 
    3689 template<typename T>
    3690 VmaRawList<T>::VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks) :
    3691  m_pAllocationCallbacks(pAllocationCallbacks),
    3692  m_ItemAllocator(pAllocationCallbacks, 128),
    3693  m_pFront(VMA_NULL),
    3694  m_pBack(VMA_NULL),
    3695  m_Count(0)
    3696 {
    3697 }
    3698 
    3699 template<typename T>
    3700 VmaRawList<T>::~VmaRawList()
    3701 {
    3702  // Intentionally not calling Clear, because that would be unnecessary
    3703  // computations to return all items to m_ItemAllocator as free.
    3704 }
    3705 
    3706 template<typename T>
    3707 void VmaRawList<T>::Clear()
    3708 {
    3709  if(IsEmpty() == false)
    3710  {
    3711  ItemType* pItem = m_pBack;
    3712  while(pItem != VMA_NULL)
    3713  {
    3714  ItemType* const pPrevItem = pItem->pPrev;
    3715  m_ItemAllocator.Free(pItem);
    3716  pItem = pPrevItem;
    3717  }
    3718  m_pFront = VMA_NULL;
    3719  m_pBack = VMA_NULL;
    3720  m_Count = 0;
    3721  }
    3722 }
    3723 
    3724 template<typename T>
    3725 VmaListItem<T>* VmaRawList<T>::PushBack()
    3726 {
    3727  ItemType* const pNewItem = m_ItemAllocator.Alloc();
    3728  pNewItem->pNext = VMA_NULL;
    3729  if(IsEmpty())
    3730  {
    3731  pNewItem->pPrev = VMA_NULL;
    3732  m_pFront = pNewItem;
    3733  m_pBack = pNewItem;
    3734  m_Count = 1;
    3735  }
    3736  else
    3737  {
    3738  pNewItem->pPrev = m_pBack;
    3739  m_pBack->pNext = pNewItem;
    3740  m_pBack = pNewItem;
    3741  ++m_Count;
    3742  }
    3743  return pNewItem;
    3744 }
    3745 
    3746 template<typename T>
    3747 VmaListItem<T>* VmaRawList<T>::PushFront()
    3748 {
    3749  ItemType* const pNewItem = m_ItemAllocator.Alloc();
    3750  pNewItem->pPrev = VMA_NULL;
    3751  if(IsEmpty())
    3752  {
    3753  pNewItem->pNext = VMA_NULL;
    3754  m_pFront = pNewItem;
    3755  m_pBack = pNewItem;
    3756  m_Count = 1;
    3757  }
    3758  else
    3759  {
    3760  pNewItem->pNext = m_pFront;
    3761  m_pFront->pPrev = pNewItem;
    3762  m_pFront = pNewItem;
    3763  ++m_Count;
    3764  }
    3765  return pNewItem;
    3766 }
    3767 
    3768 template<typename T>
    3769 VmaListItem<T>* VmaRawList<T>::PushBack(const T& value)
    3770 {
    3771  ItemType* const pNewItem = PushBack();
    3772  pNewItem->Value = value;
    3773  return pNewItem;
    3774 }
    3775 
    3776 template<typename T>
    3777 VmaListItem<T>* VmaRawList<T>::PushFront(const T& value)
    3778 {
    3779  ItemType* const pNewItem = PushFront();
    3780  pNewItem->Value = value;
    3781  return pNewItem;
    3782 }
    3783 
    3784 template<typename T>
    3785 void VmaRawList<T>::PopBack()
    3786 {
    3787  VMA_HEAVY_ASSERT(m_Count > 0);
    3788  ItemType* const pBackItem = m_pBack;
    3789  ItemType* const pPrevItem = pBackItem->pPrev;
    3790  if(pPrevItem != VMA_NULL)
    3791  {
    3792  pPrevItem->pNext = VMA_NULL;
    3793  }
    3794  m_pBack = pPrevItem;
    3795  m_ItemAllocator.Free(pBackItem);
    3796  --m_Count;
    3797 }
    3798 
    3799 template<typename T>
    3800 void VmaRawList<T>::PopFront()
    3801 {
    3802  VMA_HEAVY_ASSERT(m_Count > 0);
    3803  ItemType* const pFrontItem = m_pFront;
    3804  ItemType* const pNextItem = pFrontItem->pNext;
    3805  if(pNextItem != VMA_NULL)
    3806  {
    3807  pNextItem->pPrev = VMA_NULL;
    3808  }
    3809  m_pFront = pNextItem;
    3810  m_ItemAllocator.Free(pFrontItem);
    3811  --m_Count;
    3812 }
    3813 
    3814 template<typename T>
    3815 void VmaRawList<T>::Remove(ItemType* pItem)
    3816 {
    3817  VMA_HEAVY_ASSERT(pItem != VMA_NULL);
    3818  VMA_HEAVY_ASSERT(m_Count > 0);
    3819 
    3820  if(pItem->pPrev != VMA_NULL)
    3821  {
    3822  pItem->pPrev->pNext = pItem->pNext;
    3823  }
    3824  else
    3825  {
    3826  VMA_HEAVY_ASSERT(m_pFront == pItem);
    3827  m_pFront = pItem->pNext;
    3828  }
    3829 
    3830  if(pItem->pNext != VMA_NULL)
    3831  {
    3832  pItem->pNext->pPrev = pItem->pPrev;
    3833  }
    3834  else
    3835  {
    3836  VMA_HEAVY_ASSERT(m_pBack == pItem);
    3837  m_pBack = pItem->pPrev;
    3838  }
    3839 
    3840  m_ItemAllocator.Free(pItem);
    3841  --m_Count;
    3842 }
    3843 
    3844 template<typename T>
    3845 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem)
    3846 {
    3847  if(pItem != VMA_NULL)
    3848  {
    3849  ItemType* const prevItem = pItem->pPrev;
    3850  ItemType* const newItem = m_ItemAllocator.Alloc();
    3851  newItem->pPrev = prevItem;
    3852  newItem->pNext = pItem;
    3853  pItem->pPrev = newItem;
    3854  if(prevItem != VMA_NULL)
    3855  {
    3856  prevItem->pNext = newItem;
    3857  }
    3858  else
    3859  {
    3860  VMA_HEAVY_ASSERT(m_pFront == pItem);
    3861  m_pFront = newItem;
    3862  }
    3863  ++m_Count;
    3864  return newItem;
    3865  }
    3866  else
    3867  return PushBack();
    3868 }
    3869 
    3870 template<typename T>
    3871 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem)
    3872 {
    3873  if(pItem != VMA_NULL)
    3874  {
    3875  ItemType* const nextItem = pItem->pNext;
    3876  ItemType* const newItem = m_ItemAllocator.Alloc();
    3877  newItem->pNext = nextItem;
    3878  newItem->pPrev = pItem;
    3879  pItem->pNext = newItem;
    3880  if(nextItem != VMA_NULL)
    3881  {
    3882  nextItem->pPrev = newItem;
    3883  }
    3884  else
    3885  {
    3886  VMA_HEAVY_ASSERT(m_pBack == pItem);
    3887  m_pBack = newItem;
    3888  }
    3889  ++m_Count;
    3890  return newItem;
    3891  }
    3892  else
    3893  return PushFront();
    3894 }
    3895 
    3896 template<typename T>
    3897 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem, const T& value)
    3898 {
    3899  ItemType* const newItem = InsertBefore(pItem);
    3900  newItem->Value = value;
    3901  return newItem;
    3902 }
    3903 
    3904 template<typename T>
    3905 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem, const T& value)
    3906 {
    3907  ItemType* const newItem = InsertAfter(pItem);
    3908  newItem->Value = value;
    3909  return newItem;
    3910 }
    3911 
    3912 template<typename T, typename AllocatorT>
    3913 class VmaList
    3914 {
    3915  VMA_CLASS_NO_COPY(VmaList)
    3916 public:
    3917  class iterator
    3918  {
    3919  public:
    3920  iterator() :
    3921  m_pList(VMA_NULL),
    3922  m_pItem(VMA_NULL)
    3923  {
    3924  }
    3925 
    3926  T& operator*() const
    3927  {
    3928  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3929  return m_pItem->Value;
    3930  }
    3931  T* operator->() const
    3932  {
    3933  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3934  return &m_pItem->Value;
    3935  }
    3936 
    3937  iterator& operator++()
    3938  {
    3939  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    3940  m_pItem = m_pItem->pNext;
    3941  return *this;
    3942  }
    3943  iterator& operator--()
    3944  {
    3945  if(m_pItem != VMA_NULL)
    3946  {
    3947  m_pItem = m_pItem->pPrev;
    3948  }
    3949  else
    3950  {
    3951  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
    3952  m_pItem = m_pList->Back();
    3953  }
    3954  return *this;
    3955  }
    3956 
    3957  iterator operator++(int)
    3958  {
    3959  iterator result = *this;
    3960  ++*this;
    3961  return result;
    3962  }
    3963  iterator operator--(int)
    3964  {
    3965  iterator result = *this;
    3966  --*this;
    3967  return result;
    3968  }
    3969 
    3970  bool operator==(const iterator& rhs) const
    3971  {
    3972  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    3973  return m_pItem == rhs.m_pItem;
    3974  }
    3975  bool operator!=(const iterator& rhs) const
    3976  {
    3977  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    3978  return m_pItem != rhs.m_pItem;
    3979  }
    3980 
    3981  private:
    3982  VmaRawList<T>* m_pList;
    3983  VmaListItem<T>* m_pItem;
    3984 
    3985  iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) :
    3986  m_pList(pList),
    3987  m_pItem(pItem)
    3988  {
    3989  }
    3990 
    3991  friend class VmaList<T, AllocatorT>;
    3992  };
    3993 
    3994  class const_iterator
    3995  {
    3996  public:
    3997  const_iterator() :
    3998  m_pList(VMA_NULL),
    3999  m_pItem(VMA_NULL)
    4000  {
    4001  }
    4002 
    4003  const_iterator(const iterator& src) :
    4004  m_pList(src.m_pList),
    4005  m_pItem(src.m_pItem)
    4006  {
    4007  }
    4008 
    4009  const T& operator*() const
    4010  {
    4011  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4012  return m_pItem->Value;
    4013  }
    4014  const T* operator->() const
    4015  {
    4016  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4017  return &m_pItem->Value;
    4018  }
    4019 
    4020  const_iterator& operator++()
    4021  {
    4022  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
    4023  m_pItem = m_pItem->pNext;
    4024  return *this;
    4025  }
    4026  const_iterator& operator--()
    4027  {
    4028  if(m_pItem != VMA_NULL)
    4029  {
    4030  m_pItem = m_pItem->pPrev;
    4031  }
    4032  else
    4033  {
    4034  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
    4035  m_pItem = m_pList->Back();
    4036  }
    4037  return *this;
    4038  }
    4039 
    4040  const_iterator operator++(int)
    4041  {
    4042  const_iterator result = *this;
    4043  ++*this;
    4044  return result;
    4045  }
    4046  const_iterator operator--(int)
    4047  {
    4048  const_iterator result = *this;
    4049  --*this;
    4050  return result;
    4051  }
    4052 
    4053  bool operator==(const const_iterator& rhs) const
    4054  {
    4055  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    4056  return m_pItem == rhs.m_pItem;
    4057  }
    4058  bool operator!=(const const_iterator& rhs) const
    4059  {
    4060  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
    4061  return m_pItem != rhs.m_pItem;
    4062  }
    4063 
    4064  private:
    4065  const_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) :
    4066  m_pList(pList),
    4067  m_pItem(pItem)
    4068  {
    4069  }
    4070 
    4071  const VmaRawList<T>* m_pList;
    4072  const VmaListItem<T>* m_pItem;
    4073 
    4074  friend class VmaList<T, AllocatorT>;
    4075  };
    4076 
    4077  VmaList(const AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
    4078 
    4079  bool empty() const { return m_RawList.IsEmpty(); }
    4080  size_t size() const { return m_RawList.GetCount(); }
    4081 
    4082  iterator begin() { return iterator(&m_RawList, m_RawList.Front()); }
    4083  iterator end() { return iterator(&m_RawList, VMA_NULL); }
    4084 
    4085  const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); }
    4086  const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); }
    4087 
    4088  void clear() { m_RawList.Clear(); }
    4089  void push_back(const T& value) { m_RawList.PushBack(value); }
    4090  void erase(iterator it) { m_RawList.Remove(it.m_pItem); }
    4091  iterator insert(iterator it, const T& value) { return iterator(&m_RawList, m_RawList.InsertBefore(it.m_pItem, value)); }
    4092 
    4093 private:
    4094  VmaRawList<T> m_RawList;
    4095 };
    4096 
    4097 #endif // #if VMA_USE_STL_LIST
    4098 
    4100 // class VmaMap
    4101 
    4102 // Unused in this version.
    4103 #if 0
    4104 
    4105 #if VMA_USE_STL_UNORDERED_MAP
    4106 
    4107 #define VmaPair std::pair
    4108 
    4109 #define VMA_MAP_TYPE(KeyT, ValueT) \
    4110  std::unordered_map< KeyT, ValueT, std::hash<KeyT>, std::equal_to<KeyT>, VmaStlAllocator< std::pair<KeyT, ValueT> > >
    4111 
    4112 #else // #if VMA_USE_STL_UNORDERED_MAP
    4113 
    4114 template<typename T1, typename T2>
    4115 struct VmaPair
    4116 {
    4117  T1 first;
    4118  T2 second;
    4119 
    4120  VmaPair() : first(), second() { }
    4121  VmaPair(const T1& firstSrc, const T2& secondSrc) : first(firstSrc), second(secondSrc) { }
    4122 };
    4123 
    4124 /* Class compatible with subset of interface of std::unordered_map.
    4125 KeyT, ValueT must be POD because they will be stored in VmaVector.
    4126 */
    4127 template<typename KeyT, typename ValueT>
    4128 class VmaMap
    4129 {
    4130 public:
    4131  typedef VmaPair<KeyT, ValueT> PairType;
    4132  typedef PairType* iterator;
    4133 
    4134  VmaMap(const VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
    4135 
    4136  iterator begin() { return m_Vector.begin(); }
    4137  iterator end() { return m_Vector.end(); }
    4138 
    4139  void insert(const PairType& pair);
    4140  iterator find(const KeyT& key);
    4141  void erase(iterator it);
    4142 
    4143 private:
    4144  VmaVector< PairType, VmaStlAllocator<PairType> > m_Vector;
    4145 };
    4146 
    4147 #define VMA_MAP_TYPE(KeyT, ValueT) VmaMap<KeyT, ValueT>
    4148 
    4149 template<typename FirstT, typename SecondT>
    4150 struct VmaPairFirstLess
    4151 {
    4152  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const VmaPair<FirstT, SecondT>& rhs) const
    4153  {
    4154  return lhs.first < rhs.first;
    4155  }
    4156  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const FirstT& rhsFirst) const
    4157  {
    4158  return lhs.first < rhsFirst;
    4159  }
    4160 };
    4161 
    4162 template<typename KeyT, typename ValueT>
    4163 void VmaMap<KeyT, ValueT>::insert(const PairType& pair)
    4164 {
    4165  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
    4166  m_Vector.data(),
    4167  m_Vector.data() + m_Vector.size(),
    4168  pair,
    4169  VmaPairFirstLess<KeyT, ValueT>()) - m_Vector.data();
    4170  VmaVectorInsert(m_Vector, indexToInsert, pair);
    4171 }
    4172 
    4173 template<typename KeyT, typename ValueT>
    4174 VmaPair<KeyT, ValueT>* VmaMap<KeyT, ValueT>::find(const KeyT& key)
    4175 {
    4176  PairType* it = VmaBinaryFindFirstNotLess(
    4177  m_Vector.data(),
    4178  m_Vector.data() + m_Vector.size(),
    4179  key,
    4180  VmaPairFirstLess<KeyT, ValueT>());
    4181  if((it != m_Vector.end()) && (it->first == key))
    4182  {
    4183  return it;
    4184  }
    4185  else
    4186  {
    4187  return m_Vector.end();
    4188  }
    4189 }
    4190 
    4191 template<typename KeyT, typename ValueT>
    4192 void VmaMap<KeyT, ValueT>::erase(iterator it)
    4193 {
    4194  VmaVectorRemove(m_Vector, it - m_Vector.begin());
    4195 }
    4196 
    4197 #endif // #if VMA_USE_STL_UNORDERED_MAP
    4198 
    4199 #endif // #if 0
    4200 
    4202 
    4203 class VmaDeviceMemoryBlock;
    4204 
    4205 enum VMA_CACHE_OPERATION { VMA_CACHE_FLUSH, VMA_CACHE_INVALIDATE };
    4206 
    4207 struct VmaAllocation_T
    4208 {
    4209  VMA_CLASS_NO_COPY(VmaAllocation_T)
    4210 private:
    4211  static const uint8_t MAP_COUNT_FLAG_PERSISTENT_MAP = 0x80;
    4212 
    4213  enum FLAGS
    4214  {
    4215  FLAG_USER_DATA_STRING = 0x01,
    4216  };
    4217 
    4218 public:
    4219  enum ALLOCATION_TYPE
    4220  {
    4221  ALLOCATION_TYPE_NONE,
    4222  ALLOCATION_TYPE_BLOCK,
    4223  ALLOCATION_TYPE_DEDICATED,
    4224  };
    4225 
    4226  VmaAllocation_T(uint32_t currentFrameIndex, bool userDataString) :
    4227  m_Alignment(1),
    4228  m_Size(0),
    4229  m_pUserData(VMA_NULL),
    4230  m_LastUseFrameIndex(currentFrameIndex),
    4231  m_Type((uint8_t)ALLOCATION_TYPE_NONE),
    4232  m_SuballocationType((uint8_t)VMA_SUBALLOCATION_TYPE_UNKNOWN),
    4233  m_MapCount(0),
    4234  m_Flags(userDataString ? (uint8_t)FLAG_USER_DATA_STRING : 0)
    4235  {
    4236 #if VMA_STATS_STRING_ENABLED
    4237  m_CreationFrameIndex = currentFrameIndex;
    4238  m_BufferImageUsage = 0;
    4239 #endif
    4240  }
    4241 
    4242  ~VmaAllocation_T()
    4243  {
    4244  VMA_ASSERT((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) == 0 && "Allocation was not unmapped before destruction.");
    4245 
    4246  // Check if owned string was freed.
    4247  VMA_ASSERT(m_pUserData == VMA_NULL);
    4248  }
    4249 
    4250  void InitBlockAllocation(
    4251  VmaPool hPool,
    4252  VmaDeviceMemoryBlock* block,
    4253  VkDeviceSize offset,
    4254  VkDeviceSize alignment,
    4255  VkDeviceSize size,
    4256  VmaSuballocationType suballocationType,
    4257  bool mapped,
    4258  bool canBecomeLost)
    4259  {
    4260  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4261  VMA_ASSERT(block != VMA_NULL);
    4262  m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK;
    4263  m_Alignment = alignment;
    4264  m_Size = size;
    4265  m_MapCount = mapped ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0;
    4266  m_SuballocationType = (uint8_t)suballocationType;
    4267  m_BlockAllocation.m_hPool = hPool;
    4268  m_BlockAllocation.m_Block = block;
    4269  m_BlockAllocation.m_Offset = offset;
    4270  m_BlockAllocation.m_CanBecomeLost = canBecomeLost;
    4271  }
    4272 
    4273  void InitLost()
    4274  {
    4275  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4276  VMA_ASSERT(m_LastUseFrameIndex.load() == VMA_FRAME_INDEX_LOST);
    4277  m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK;
    4278  m_BlockAllocation.m_hPool = VK_NULL_HANDLE;
    4279  m_BlockAllocation.m_Block = VMA_NULL;
    4280  m_BlockAllocation.m_Offset = 0;
    4281  m_BlockAllocation.m_CanBecomeLost = true;
    4282  }
    4283 
    4284  void ChangeBlockAllocation(
    4285  VmaAllocator hAllocator,
    4286  VmaDeviceMemoryBlock* block,
    4287  VkDeviceSize offset);
    4288 
    4289  // pMappedData not null means allocation is created with MAPPED flag.
    4290  void InitDedicatedAllocation(
    4291  uint32_t memoryTypeIndex,
    4292  VkDeviceMemory hMemory,
    4293  VmaSuballocationType suballocationType,
    4294  void* pMappedData,
    4295  VkDeviceSize size)
    4296  {
    4297  VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
    4298  VMA_ASSERT(hMemory != VK_NULL_HANDLE);
    4299  m_Type = (uint8_t)ALLOCATION_TYPE_DEDICATED;
    4300  m_Alignment = 0;
    4301  m_Size = size;
    4302  m_SuballocationType = (uint8_t)suballocationType;
    4303  m_MapCount = (pMappedData != VMA_NULL) ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0;
    4304  m_DedicatedAllocation.m_MemoryTypeIndex = memoryTypeIndex;
    4305  m_DedicatedAllocation.m_hMemory = hMemory;
    4306  m_DedicatedAllocation.m_pMappedData = pMappedData;
    4307  }
    4308 
    4309  ALLOCATION_TYPE GetType() const { return (ALLOCATION_TYPE)m_Type; }
    4310  VkDeviceSize GetAlignment() const { return m_Alignment; }
    4311  VkDeviceSize GetSize() const { return m_Size; }
    4312  bool IsUserDataString() const { return (m_Flags & FLAG_USER_DATA_STRING) != 0; }
    4313  void* GetUserData() const { return m_pUserData; }
    4314  void SetUserData(VmaAllocator hAllocator, void* pUserData);
    4315  VmaSuballocationType GetSuballocationType() const { return (VmaSuballocationType)m_SuballocationType; }
    4316 
    4317  VmaDeviceMemoryBlock* GetBlock() const
    4318  {
    4319  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    4320  return m_BlockAllocation.m_Block;
    4321  }
    4322  VkDeviceSize GetOffset() const;
    4323  VkDeviceMemory GetMemory() const;
    4324  uint32_t GetMemoryTypeIndex() const;
    4325  bool IsPersistentMap() const { return (m_MapCount & MAP_COUNT_FLAG_PERSISTENT_MAP) != 0; }
    4326  void* GetMappedData() const;
    4327  bool CanBecomeLost() const;
    4328  VmaPool GetPool() const;
    4329 
    4330  uint32_t GetLastUseFrameIndex() const
    4331  {
    4332  return m_LastUseFrameIndex.load();
    4333  }
    4334  bool CompareExchangeLastUseFrameIndex(uint32_t& expected, uint32_t desired)
    4335  {
    4336  return m_LastUseFrameIndex.compare_exchange_weak(expected, desired);
    4337  }
    4338  /*
    4339  - If hAllocation.LastUseFrameIndex + frameInUseCount < allocator.CurrentFrameIndex,
    4340  makes it lost by setting LastUseFrameIndex = VMA_FRAME_INDEX_LOST and returns true.
    4341  - Else, returns false.
    4342 
    4343  If hAllocation is already lost, assert - you should not call it then.
    4344  If hAllocation was not created with CAN_BECOME_LOST_BIT, assert.
    4345  */
    4346  bool MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4347 
    4348  void DedicatedAllocCalcStatsInfo(VmaStatInfo& outInfo)
    4349  {
    4350  VMA_ASSERT(m_Type == ALLOCATION_TYPE_DEDICATED);
    4351  outInfo.blockCount = 1;
    4352  outInfo.allocationCount = 1;
    4353  outInfo.unusedRangeCount = 0;
    4354  outInfo.usedBytes = m_Size;
    4355  outInfo.unusedBytes = 0;
    4356  outInfo.allocationSizeMin = outInfo.allocationSizeMax = m_Size;
    4357  outInfo.unusedRangeSizeMin = UINT64_MAX;
    4358  outInfo.unusedRangeSizeMax = 0;
    4359  }
    4360 
    4361  void BlockAllocMap();
    4362  void BlockAllocUnmap();
    4363  VkResult DedicatedAllocMap(VmaAllocator hAllocator, void** ppData);
    4364  void DedicatedAllocUnmap(VmaAllocator hAllocator);
    4365 
    4366 #if VMA_STATS_STRING_ENABLED
    4367  uint32_t GetCreationFrameIndex() const { return m_CreationFrameIndex; }
    4368  uint32_t GetBufferImageUsage() const { return m_BufferImageUsage; }
    4369 
    4370  void InitBufferImageUsage(uint32_t bufferImageUsage)
    4371  {
    4372  VMA_ASSERT(m_BufferImageUsage == 0);
    4373  m_BufferImageUsage = bufferImageUsage;
    4374  }
    4375 
    4376  void PrintParameters(class VmaJsonWriter& json) const;
    4377 #endif
    4378 
    4379 private:
    4380  VkDeviceSize m_Alignment;
    4381  VkDeviceSize m_Size;
    4382  void* m_pUserData;
    4383  VMA_ATOMIC_UINT32 m_LastUseFrameIndex;
    4384  uint8_t m_Type; // ALLOCATION_TYPE
    4385  uint8_t m_SuballocationType; // VmaSuballocationType
    4386  // Bit 0x80 is set when allocation was created with VMA_ALLOCATION_CREATE_MAPPED_BIT.
    4387  // Bits with mask 0x7F are reference counter for vmaMapMemory()/vmaUnmapMemory().
    4388  uint8_t m_MapCount;
    4389  uint8_t m_Flags; // enum FLAGS
    4390 
    4391  // Allocation out of VmaDeviceMemoryBlock.
    4392  struct BlockAllocation
    4393  {
    4394  VmaPool m_hPool; // Null if belongs to general memory.
    4395  VmaDeviceMemoryBlock* m_Block;
    4396  VkDeviceSize m_Offset;
    4397  bool m_CanBecomeLost;
    4398  };
    4399 
    4400  // Allocation for an object that has its own private VkDeviceMemory.
    4401  struct DedicatedAllocation
    4402  {
    4403  uint32_t m_MemoryTypeIndex;
    4404  VkDeviceMemory m_hMemory;
    4405  void* m_pMappedData; // Not null means memory is mapped.
    4406  };
    4407 
    4408  union
    4409  {
    4410  // Allocation out of VmaDeviceMemoryBlock.
    4411  BlockAllocation m_BlockAllocation;
    4412  // Allocation for an object that has its own private VkDeviceMemory.
    4413  DedicatedAllocation m_DedicatedAllocation;
    4414  };
    4415 
    4416 #if VMA_STATS_STRING_ENABLED
    4417  uint32_t m_CreationFrameIndex;
    4418  uint32_t m_BufferImageUsage; // 0 if unknown.
    4419 #endif
    4420 
    4421  void FreeUserDataString(VmaAllocator hAllocator);
    4422 };
    4423 
    4424 /*
    4425 Represents a region of VmaDeviceMemoryBlock that is either assigned and returned as
    4426 allocated memory block or free.
    4427 */
    4428 struct VmaSuballocation
    4429 {
    4430  VkDeviceSize offset;
    4431  VkDeviceSize size;
    4432  VmaAllocation hAllocation;
    4433  VmaSuballocationType type;
    4434 };
    4435 
    4436 // Comparator for offsets.
    4437 struct VmaSuballocationOffsetLess
    4438 {
    4439  bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
    4440  {
    4441  return lhs.offset < rhs.offset;
    4442  }
    4443 };
    4444 struct VmaSuballocationOffsetGreater
    4445 {
    4446  bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
    4447  {
    4448  return lhs.offset > rhs.offset;
    4449  }
    4450 };
    4451 
    4452 typedef VmaList< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > VmaSuballocationList;
    4453 
    4454 // Cost of one additional allocation lost, as equivalent in bytes.
    4455 static const VkDeviceSize VMA_LOST_ALLOCATION_COST = 1048576;
    4456 
    4457 /*
    4458 Parameters of planned allocation inside a VmaDeviceMemoryBlock.
    4459 
    4460 If canMakeOtherLost was false:
    4461 - item points to a FREE suballocation.
    4462 - itemsToMakeLostCount is 0.
    4463 
    4464 If canMakeOtherLost was true:
    4465 - item points to first of sequence of suballocations, which are either FREE,
    4466  or point to VmaAllocations that can become lost.
    4467 - itemsToMakeLostCount is the number of VmaAllocations that need to be made lost for
    4468  the requested allocation to succeed.
    4469 */
    4470 struct VmaAllocationRequest
    4471 {
    4472  VkDeviceSize offset;
    4473  VkDeviceSize sumFreeSize; // Sum size of free items that overlap with proposed allocation.
    4474  VkDeviceSize sumItemSize; // Sum size of items to make lost that overlap with proposed allocation.
    4475  VmaSuballocationList::iterator item;
    4476  size_t itemsToMakeLostCount;
    4477 
    4478  VkDeviceSize CalcCost() const
    4479  {
    4480  return sumItemSize + itemsToMakeLostCount * VMA_LOST_ALLOCATION_COST;
    4481  }
    4482 };
    4483 
    4484 /*
    4485 Data structure used for bookkeeping of allocations and unused ranges of memory
    4486 in a single VkDeviceMemory block.
    4487 */
    4488 class VmaBlockMetadata
    4489 {
    4490 public:
    4491  VmaBlockMetadata() : m_Size(0) { }
    4492  virtual ~VmaBlockMetadata() { }
    4493  virtual void Init(VkDeviceSize size) { m_Size = size; }
    4494 
    4495  // Validates all data structures inside this object. If not valid, returns false.
    4496  virtual bool Validate() const = 0;
    4497  VkDeviceSize GetSize() const { return m_Size; }
    4498  virtual size_t GetAllocationCount() const = 0;
    4499  virtual VkDeviceSize GetSumFreeSize() const = 0;
    4500  virtual VkDeviceSize GetUnusedRangeSizeMax() const = 0;
    4501  // Returns true if this block is empty - contains only single free suballocation.
    4502  virtual bool IsEmpty() const = 0;
    4503 
    4504  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const = 0;
    4505  virtual void AddPoolStats(VmaPoolStats& inoutStats) const = 0;
    4506 
    4507 #if VMA_STATS_STRING_ENABLED
    4508  virtual void PrintDetailedMap(class VmaJsonWriter& json) const = 0;
    4509 #endif
    4510 
    4511  // Tries to find a place for suballocation with given parameters inside this block.
    4512  // If succeeded, fills pAllocationRequest and returns true.
    4513  // If failed, returns false.
    4514  virtual bool CreateAllocationRequest(
    4515  uint32_t currentFrameIndex,
    4516  uint32_t frameInUseCount,
    4517  VkDeviceSize bufferImageGranularity,
    4518  VkDeviceSize allocSize,
    4519  VkDeviceSize allocAlignment,
    4520  bool upperAddress,
    4521  VmaSuballocationType allocType,
    4522  bool canMakeOtherLost,
    4523  VmaAllocationRequest* pAllocationRequest) = 0;
    4524 
    4525  virtual bool MakeRequestedAllocationsLost(
    4526  uint32_t currentFrameIndex,
    4527  uint32_t frameInUseCount,
    4528  VmaAllocationRequest* pAllocationRequest) = 0;
    4529 
    4530  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) = 0;
    4531 
    4532  virtual VkResult CheckCorruption(const void* pBlockData) = 0;
    4533 
    4534  // Makes actual allocation based on request. Request must already be checked and valid.
    4535  virtual void Alloc(
    4536  const VmaAllocationRequest& request,
    4537  VmaSuballocationType type,
    4538  VkDeviceSize allocSize,
    4539  bool upperAddress,
    4540  VmaAllocation hAllocation) = 0;
    4541 
    4542  // Frees suballocation assigned to given memory region.
    4543  virtual void Free(const VmaAllocation allocation) = 0;
    4544  virtual void FreeAtOffset(VkDeviceSize offset) = 0;
    4545 
    4546 protected:
    4547 #if VMA_STATS_STRING_ENABLED
    4548  void PrintDetailedMap_Begin(class VmaJsonWriter& json,
    4549  VkDeviceSize unusedBytes,
    4550  size_t allocationCount,
    4551  size_t unusedRangeCount) const;
    4552  void PrintDetailedMap_Allocation(class VmaJsonWriter& json,
    4553  VkDeviceSize offset,
    4554  VmaAllocation hAllocation) const;
    4555  void PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
    4556  VkDeviceSize offset,
    4557  VkDeviceSize size) const;
    4558  void PrintDetailedMap_End(class VmaJsonWriter& json) const;
    4559 #endif
    4560 
    4561 private:
    4562  VkDeviceSize m_Size;
    4563 };
    4564 
    4565 class VmaBlockMetadata_Generic : public VmaBlockMetadata
    4566 {
    4567  VMA_CLASS_NO_COPY(VmaBlockMetadata_Generic)
    4568 public:
    4569  VmaBlockMetadata_Generic(VmaAllocator hAllocator);
    4570  virtual ~VmaBlockMetadata_Generic();
    4571  virtual void Init(VkDeviceSize size);
    4572 
    4573  virtual bool Validate() const;
    4574  virtual size_t GetAllocationCount() const { return m_Suballocations.size() - m_FreeCount; }
    4575  virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; }
    4576  virtual VkDeviceSize GetUnusedRangeSizeMax() const;
    4577  virtual bool IsEmpty() const;
    4578 
    4579  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const;
    4580  virtual void AddPoolStats(VmaPoolStats& inoutStats) const;
    4581 
    4582 #if VMA_STATS_STRING_ENABLED
    4583  virtual void PrintDetailedMap(class VmaJsonWriter& json) const;
    4584 #endif
    4585 
    4586  virtual bool CreateAllocationRequest(
    4587  uint32_t currentFrameIndex,
    4588  uint32_t frameInUseCount,
    4589  VkDeviceSize bufferImageGranularity,
    4590  VkDeviceSize allocSize,
    4591  VkDeviceSize allocAlignment,
    4592  bool upperAddress,
    4593  VmaSuballocationType allocType,
    4594  bool canMakeOtherLost,
    4595  VmaAllocationRequest* pAllocationRequest);
    4596 
    4597  virtual bool MakeRequestedAllocationsLost(
    4598  uint32_t currentFrameIndex,
    4599  uint32_t frameInUseCount,
    4600  VmaAllocationRequest* pAllocationRequest);
    4601 
    4602  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4603 
    4604  virtual VkResult CheckCorruption(const void* pBlockData);
    4605 
    4606  virtual void Alloc(
    4607  const VmaAllocationRequest& request,
    4608  VmaSuballocationType type,
    4609  VkDeviceSize allocSize,
    4610  bool upperAddress,
    4611  VmaAllocation hAllocation);
    4612 
    4613  virtual void Free(const VmaAllocation allocation);
    4614  virtual void FreeAtOffset(VkDeviceSize offset);
    4615 
    4616 private:
    4617  uint32_t m_FreeCount;
    4618  VkDeviceSize m_SumFreeSize;
    4619  VmaSuballocationList m_Suballocations;
    4620  // Suballocations that are free and have size greater than certain threshold.
    4621  // Sorted by size, ascending.
    4622  VmaVector< VmaSuballocationList::iterator, VmaStlAllocator< VmaSuballocationList::iterator > > m_FreeSuballocationsBySize;
    4623 
    4624  bool ValidateFreeSuballocationList() const;
    4625 
    4626  // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
    4627  // If yes, fills pOffset and returns true. If no, returns false.
    4628  bool CheckAllocation(
    4629  uint32_t currentFrameIndex,
    4630  uint32_t frameInUseCount,
    4631  VkDeviceSize bufferImageGranularity,
    4632  VkDeviceSize allocSize,
    4633  VkDeviceSize allocAlignment,
    4634  VmaSuballocationType allocType,
    4635  VmaSuballocationList::const_iterator suballocItem,
    4636  bool canMakeOtherLost,
    4637  VkDeviceSize* pOffset,
    4638  size_t* itemsToMakeLostCount,
    4639  VkDeviceSize* pSumFreeSize,
    4640  VkDeviceSize* pSumItemSize) const;
    4641  // Given free suballocation, it merges it with following one, which must also be free.
    4642  void MergeFreeWithNext(VmaSuballocationList::iterator item);
    4643  // Releases given suballocation, making it free.
    4644  // Merges it with adjacent free suballocations if applicable.
    4645  // Returns iterator to new free suballocation at this place.
    4646  VmaSuballocationList::iterator FreeSuballocation(VmaSuballocationList::iterator suballocItem);
    4647  // Given free suballocation, it inserts it into sorted list of
    4648  // m_FreeSuballocationsBySize if it's suitable.
    4649  void RegisterFreeSuballocation(VmaSuballocationList::iterator item);
    4650  // Given free suballocation, it removes it from sorted list of
    4651  // m_FreeSuballocationsBySize if it's suitable.
    4652  void UnregisterFreeSuballocation(VmaSuballocationList::iterator item);
    4653 };
    4654 
    4655 /*
    4656 Allocations and their references in internal data structure look like this:
    4657 
    4658 if(m_2ndVectorMode == SECOND_VECTOR_EMPTY):
    4659 
    4660  0 +-------+
    4661  | |
    4662  | |
    4663  | |
    4664  +-------+
    4665  | Alloc | 1st[m_1stNullItemsBeginCount]
    4666  +-------+
    4667  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4668  +-------+
    4669  | ... |
    4670  +-------+
    4671  | Alloc | 1st[1st.size() - 1]
    4672  +-------+
    4673  | |
    4674  | |
    4675  | |
    4676 GetSize() +-------+
    4677 
    4678 if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER):
    4679 
    4680  0 +-------+
    4681  | Alloc | 2nd[0]
    4682  +-------+
    4683  | Alloc | 2nd[1]
    4684  +-------+
    4685  | ... |
    4686  +-------+
    4687  | Alloc | 2nd[2nd.size() - 1]
    4688  +-------+
    4689  | |
    4690  | |
    4691  | |
    4692  +-------+
    4693  | Alloc | 1st[m_1stNullItemsBeginCount]
    4694  +-------+
    4695  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4696  +-------+
    4697  | ... |
    4698  +-------+
    4699  | Alloc | 1st[1st.size() - 1]
    4700  +-------+
    4701  | |
    4702 GetSize() +-------+
    4703 
    4704 if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK):
    4705 
    4706  0 +-------+
    4707  | |
    4708  | |
    4709  | |
    4710  +-------+
    4711  | Alloc | 1st[m_1stNullItemsBeginCount]
    4712  +-------+
    4713  | Alloc | 1st[m_1stNullItemsBeginCount + 1]
    4714  +-------+
    4715  | ... |
    4716  +-------+
    4717  | Alloc | 1st[1st.size() - 1]
    4718  +-------+
    4719  | |
    4720  | |
    4721  | |
    4722  +-------+
    4723  | Alloc | 2nd[2nd.size() - 1]
    4724  +-------+
    4725  | ... |
    4726  +-------+
    4727  | Alloc | 2nd[1]
    4728  +-------+
    4729  | Alloc | 2nd[0]
    4730 GetSize() +-------+
    4731 
    4732 */
    4733 class VmaBlockMetadata_Linear : public VmaBlockMetadata
    4734 {
    4735  VMA_CLASS_NO_COPY(VmaBlockMetadata_Linear)
    4736 public:
    4737  VmaBlockMetadata_Linear(VmaAllocator hAllocator);
    4738  virtual ~VmaBlockMetadata_Linear();
    4739  virtual void Init(VkDeviceSize size);
    4740 
    4741  virtual bool Validate() const;
    4742  virtual size_t GetAllocationCount() const;
    4743  virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; }
    4744  virtual VkDeviceSize GetUnusedRangeSizeMax() const;
    4745  virtual bool IsEmpty() const { return GetAllocationCount() == 0; }
    4746 
    4747  virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const;
    4748  virtual void AddPoolStats(VmaPoolStats& inoutStats) const;
    4749 
    4750 #if VMA_STATS_STRING_ENABLED
    4751  virtual void PrintDetailedMap(class VmaJsonWriter& json) const;
    4752 #endif
    4753 
    4754  virtual bool CreateAllocationRequest(
    4755  uint32_t currentFrameIndex,
    4756  uint32_t frameInUseCount,
    4757  VkDeviceSize bufferImageGranularity,
    4758  VkDeviceSize allocSize,
    4759  VkDeviceSize allocAlignment,
    4760  bool upperAddress,
    4761  VmaSuballocationType allocType,
    4762  bool canMakeOtherLost,
    4763  VmaAllocationRequest* pAllocationRequest);
    4764 
    4765  virtual bool MakeRequestedAllocationsLost(
    4766  uint32_t currentFrameIndex,
    4767  uint32_t frameInUseCount,
    4768  VmaAllocationRequest* pAllocationRequest);
    4769 
    4770  virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount);
    4771 
    4772  virtual VkResult CheckCorruption(const void* pBlockData);
    4773 
    4774  virtual void Alloc(
    4775  const VmaAllocationRequest& request,
    4776  VmaSuballocationType type,
    4777  VkDeviceSize allocSize,
    4778  bool upperAddress,
    4779  VmaAllocation hAllocation);
    4780 
    4781  virtual void Free(const VmaAllocation allocation);
    4782  virtual void FreeAtOffset(VkDeviceSize offset);
    4783 
    4784 private:
    4785  /*
    4786  There are two suballocation vectors, used in ping-pong way.
    4787  The one with index m_1stVectorIndex is called 1st.
    4788  The one with index (m_1stVectorIndex ^ 1) is called 2nd.
    4789  2nd can be non-empty only when 1st is not empty.
    4790  When 2nd is not empty, m_2ndVectorMode indicates its mode of operation.
    4791  */
    4792  typedef VmaVector< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > SuballocationVectorType;
    4793 
    4794  enum SECOND_VECTOR_MODE
    4795  {
    4796  SECOND_VECTOR_EMPTY,
    4797  /*
    4798  Suballocations in 2nd vector are created later than the ones in 1st, but they
    4799  all have smaller offset.
    4800  */
    4801  SECOND_VECTOR_RING_BUFFER,
    4802  /*
    4803  Suballocations in 2nd vector are upper side of double stack.
    4804  They all have offsets higher than those in 1st vector.
    4805  Top of this stack means smaller offsets, but higher indices in this vector.
    4806  */
    4807  SECOND_VECTOR_DOUBLE_STACK,
    4808  };
    4809 
    4810  VkDeviceSize m_SumFreeSize;
    4811  SuballocationVectorType m_Suballocations0, m_Suballocations1;
    4812  uint32_t m_1stVectorIndex;
    4813  SECOND_VECTOR_MODE m_2ndVectorMode;
    4814 
    4815  SuballocationVectorType& AccessSuballocations1st() { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
    4816  SuballocationVectorType& AccessSuballocations2nd() { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
    4817  const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
    4818  const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
    4819 
    4820  // Number of items in 1st vector with hAllocation = null at the beginning.
    4821  size_t m_1stNullItemsBeginCount;
    4822  // Number of other items in 1st vector with hAllocation = null somewhere in the middle.
    4823  size_t m_1stNullItemsMiddleCount;
    4824  // Number of items in 2nd vector with hAllocation = null.
    4825  size_t m_2ndNullItemsCount;
    4826 
    4827  bool ShouldCompact1st() const;
    4828  void CleanupAfterFree();
    4829 };
    4830 
    4831 /*
    4832 Represents a single block of device memory (`VkDeviceMemory`) with all the
    4833 data about its regions (aka suballocations, #VmaAllocation), assigned and free.
    4834 
    4835 Thread-safety: This class must be externally synchronized.
    4836 */
    4837 class VmaDeviceMemoryBlock
    4838 {
    4839  VMA_CLASS_NO_COPY(VmaDeviceMemoryBlock)
    4840 public:
    4841  VmaBlockMetadata* m_pMetadata;
    4842 
    4843  VmaDeviceMemoryBlock(VmaAllocator hAllocator);
    4844 
    4845  ~VmaDeviceMemoryBlock()
    4846  {
    4847  VMA_ASSERT(m_MapCount == 0 && "VkDeviceMemory block is being destroyed while it is still mapped.");
    4848  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
    4849  }
    4850 
    4851  // Always call after construction.
    4852  void Init(
    4853  VmaAllocator hAllocator,
    4854  uint32_t newMemoryTypeIndex,
    4855  VkDeviceMemory newMemory,
    4856  VkDeviceSize newSize,
    4857  uint32_t id,
    4858  bool linearAlgorithm);
    4859  // Always call before destruction.
    4860  void Destroy(VmaAllocator allocator);
    4861 
    4862  VkDeviceMemory GetDeviceMemory() const { return m_hMemory; }
    4863  uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
    4864  uint32_t GetId() const { return m_Id; }
    4865  void* GetMappedData() const { return m_pMappedData; }
    4866 
    4867  // Validates all data structures inside this object. If not valid, returns false.
    4868  bool Validate() const;
    4869 
    4870  VkResult CheckCorruption(VmaAllocator hAllocator);
    4871 
    4872  // ppData can be null.
    4873  VkResult Map(VmaAllocator hAllocator, uint32_t count, void** ppData);
    4874  void Unmap(VmaAllocator hAllocator, uint32_t count);
    4875 
    4876  VkResult WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
    4877  VkResult ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
    4878 
    4879  VkResult BindBufferMemory(
    4880  const VmaAllocator hAllocator,
    4881  const VmaAllocation hAllocation,
    4882  VkBuffer hBuffer);
    4883  VkResult BindImageMemory(
    4884  const VmaAllocator hAllocator,
    4885  const VmaAllocation hAllocation,
    4886  VkImage hImage);
    4887 
    4888 private:
    4889  uint32_t m_MemoryTypeIndex;
    4890  uint32_t m_Id;
    4891  VkDeviceMemory m_hMemory;
    4892 
    4893  // Protects access to m_hMemory so it's not used by multiple threads simultaneously, e.g. vkMapMemory, vkBindBufferMemory.
    4894  // Also protects m_MapCount, m_pMappedData.
    4895  VMA_MUTEX m_Mutex;
    4896  uint32_t m_MapCount;
    4897  void* m_pMappedData;
    4898 };
    4899 
    4900 struct VmaPointerLess
    4901 {
    4902  bool operator()(const void* lhs, const void* rhs) const
    4903  {
    4904  return lhs < rhs;
    4905  }
    4906 };
    4907 
    4908 class VmaDefragmentator;
    4909 
    4910 /*
    4911 Sequence of VmaDeviceMemoryBlock. Represents memory blocks allocated for a specific
    4912 Vulkan memory type.
    4913 
    4914 Synchronized internally with a mutex.
    4915 */
    4916 struct VmaBlockVector
    4917 {
    4918  VMA_CLASS_NO_COPY(VmaBlockVector)
    4919 public:
    4920  VmaBlockVector(
    4921  VmaAllocator hAllocator,
    4922  uint32_t memoryTypeIndex,
    4923  VkDeviceSize preferredBlockSize,
    4924  size_t minBlockCount,
    4925  size_t maxBlockCount,
    4926  VkDeviceSize bufferImageGranularity,
    4927  uint32_t frameInUseCount,
    4928  bool isCustomPool,
    4929  bool linearAlgorithm);
    4930  ~VmaBlockVector();
    4931 
    4932  VkResult CreateMinBlocks();
    4933 
    4934  uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
    4935  VkDeviceSize GetPreferredBlockSize() const { return m_PreferredBlockSize; }
    4936  VkDeviceSize GetBufferImageGranularity() const { return m_BufferImageGranularity; }
    4937  uint32_t GetFrameInUseCount() const { return m_FrameInUseCount; }
    4938  bool UsesLinearAlgorithm() const { return m_LinearAlgorithm; }
    4939 
    4940  void GetPoolStats(VmaPoolStats* pStats);
    4941 
    4942  bool IsEmpty() const { return m_Blocks.empty(); }
    4943  bool IsCorruptionDetectionEnabled() const;
    4944 
    4945  VkResult Allocate(
    4946  VmaPool hCurrentPool,
    4947  uint32_t currentFrameIndex,
    4948  VkDeviceSize size,
    4949  VkDeviceSize alignment,
    4950  const VmaAllocationCreateInfo& createInfo,
    4951  VmaSuballocationType suballocType,
    4952  VmaAllocation* pAllocation);
    4953 
    4954  void Free(
    4955  VmaAllocation hAllocation);
    4956 
    4957  // Adds statistics of this BlockVector to pStats.
    4958  void AddStats(VmaStats* pStats);
    4959 
    4960 #if VMA_STATS_STRING_ENABLED
    4961  void PrintDetailedMap(class VmaJsonWriter& json);
    4962 #endif
    4963 
    4964  void MakePoolAllocationsLost(
    4965  uint32_t currentFrameIndex,
    4966  size_t* pLostAllocationCount);
    4967  VkResult CheckCorruption();
    4968 
    4969  VmaDefragmentator* EnsureDefragmentator(
    4970  VmaAllocator hAllocator,
    4971  uint32_t currentFrameIndex);
    4972 
    4973  VkResult Defragment(
    4974  VmaDefragmentationStats* pDefragmentationStats,
    4975  VkDeviceSize& maxBytesToMove,
    4976  uint32_t& maxAllocationsToMove);
    4977 
    4978  void DestroyDefragmentator();
    4979 
    4980 private:
    4981  friend class VmaDefragmentator;
    4982 
    4983  const VmaAllocator m_hAllocator;
    4984  const uint32_t m_MemoryTypeIndex;
    4985  const VkDeviceSize m_PreferredBlockSize;
    4986  const size_t m_MinBlockCount;
    4987  const size_t m_MaxBlockCount;
    4988  const VkDeviceSize m_BufferImageGranularity;
    4989  const uint32_t m_FrameInUseCount;
    4990  const bool m_IsCustomPool;
    4991  const bool m_LinearAlgorithm;
    4992  bool m_HasEmptyBlock;
    4993  VMA_MUTEX m_Mutex;
    4994  // Incrementally sorted by sumFreeSize, ascending.
    4995  VmaVector< VmaDeviceMemoryBlock*, VmaStlAllocator<VmaDeviceMemoryBlock*> > m_Blocks;
    4996  /* There can be at most one allocation that is completely empty - a
    4997  hysteresis to avoid pessimistic case of alternating creation and destruction
    4998  of a VkDeviceMemory. */
    4999  VmaDefragmentator* m_pDefragmentator;
    5000  uint32_t m_NextBlockId;
    5001 
    5002  VkDeviceSize CalcMaxBlockSize() const;
    5003 
    5004  // Finds and removes given block from vector.
    5005  void Remove(VmaDeviceMemoryBlock* pBlock);
    5006 
    5007  // Performs single step in sorting m_Blocks. They may not be fully sorted
    5008  // after this call.
    5009  void IncrementallySortBlocks();
    5010 
    5011  VkResult CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex);
    5012 };
    5013 
    5014 struct VmaPool_T
    5015 {
    5016  VMA_CLASS_NO_COPY(VmaPool_T)
    5017 public:
    5018  VmaBlockVector m_BlockVector;
    5019 
    5020  VmaPool_T(
    5021  VmaAllocator hAllocator,
    5022  const VmaPoolCreateInfo& createInfo);
    5023  ~VmaPool_T();
    5024 
    5025  uint32_t GetId() const { return m_Id; }
    5026  void SetId(uint32_t id) { VMA_ASSERT(m_Id == 0); m_Id = id; }
    5027 
    5028 #if VMA_STATS_STRING_ENABLED
    5029  //void PrintDetailedMap(class VmaStringBuilder& sb);
    5030 #endif
    5031 
    5032 private:
    5033  uint32_t m_Id;
    5034 };
    5035 
    5036 class VmaDefragmentator
    5037 {
    5038  VMA_CLASS_NO_COPY(VmaDefragmentator)
    5039 private:
    5040  const VmaAllocator m_hAllocator;
    5041  VmaBlockVector* const m_pBlockVector;
    5042  uint32_t m_CurrentFrameIndex;
    5043  VkDeviceSize m_BytesMoved;
    5044  uint32_t m_AllocationsMoved;
    5045 
    5046  struct AllocationInfo
    5047  {
    5048  VmaAllocation m_hAllocation;
    5049  VkBool32* m_pChanged;
    5050 
    5051  AllocationInfo() :
    5052  m_hAllocation(VK_NULL_HANDLE),
    5053  m_pChanged(VMA_NULL)
    5054  {
    5055  }
    5056  };
    5057 
    5058  struct AllocationInfoSizeGreater
    5059  {
    5060  bool operator()(const AllocationInfo& lhs, const AllocationInfo& rhs) const
    5061  {
    5062  return lhs.m_hAllocation->GetSize() > rhs.m_hAllocation->GetSize();
    5063  }
    5064  };
    5065 
    5066  // Used between AddAllocation and Defragment.
    5067  VmaVector< AllocationInfo, VmaStlAllocator<AllocationInfo> > m_Allocations;
    5068 
    5069  struct BlockInfo
    5070  {
    5071  VmaDeviceMemoryBlock* m_pBlock;
    5072  bool m_HasNonMovableAllocations;
    5073  VmaVector< AllocationInfo, VmaStlAllocator<AllocationInfo> > m_Allocations;
    5074 
    5075  BlockInfo(const VkAllocationCallbacks* pAllocationCallbacks) :
    5076  m_pBlock(VMA_NULL),
    5077  m_HasNonMovableAllocations(true),
    5078  m_Allocations(pAllocationCallbacks),
    5079  m_pMappedDataForDefragmentation(VMA_NULL)
    5080  {
    5081  }
    5082 
    5083  void CalcHasNonMovableAllocations()
    5084  {
    5085  const size_t blockAllocCount = m_pBlock->m_pMetadata->GetAllocationCount();
    5086  const size_t defragmentAllocCount = m_Allocations.size();
    5087  m_HasNonMovableAllocations = blockAllocCount != defragmentAllocCount;
    5088  }
    5089 
    5090  void SortAllocationsBySizeDescecnding()
    5091  {
    5092  VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoSizeGreater());
    5093  }
    5094 
    5095  VkResult EnsureMapping(VmaAllocator hAllocator, void** ppMappedData);
    5096  void Unmap(VmaAllocator hAllocator);
    5097 
    5098  private:
    5099  // Not null if mapped for defragmentation only, not originally mapped.
    5100  void* m_pMappedDataForDefragmentation;
    5101  };
    5102 
    5103  struct BlockPointerLess
    5104  {
    5105  bool operator()(const BlockInfo* pLhsBlockInfo, const VmaDeviceMemoryBlock* pRhsBlock) const
    5106  {
    5107  return pLhsBlockInfo->m_pBlock < pRhsBlock;
    5108  }
    5109  bool operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const
    5110  {
    5111  return pLhsBlockInfo->m_pBlock < pRhsBlockInfo->m_pBlock;
    5112  }
    5113  };
    5114 
    5115  // 1. Blocks with some non-movable allocations go first.
    5116  // 2. Blocks with smaller sumFreeSize go first.
    5117  struct BlockInfoCompareMoveDestination
    5118  {
    5119  bool operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const
    5120  {
    5121  if(pLhsBlockInfo->m_HasNonMovableAllocations && !pRhsBlockInfo->m_HasNonMovableAllocations)
    5122  {
    5123  return true;
    5124  }
    5125  if(!pLhsBlockInfo->m_HasNonMovableAllocations && pRhsBlockInfo->m_HasNonMovableAllocations)
    5126  {
    5127  return false;
    5128  }
    5129  if(pLhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize() < pRhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize())
    5130  {
    5131  return true;
    5132  }
    5133  return false;
    5134  }
    5135  };
    5136 
    5137  typedef VmaVector< BlockInfo*, VmaStlAllocator<BlockInfo*> > BlockInfoVector;
    5138  BlockInfoVector m_Blocks;
    5139 
    5140  VkResult DefragmentRound(
    5141  VkDeviceSize maxBytesToMove,
    5142  uint32_t maxAllocationsToMove);
    5143 
    5144  static bool MoveMakesSense(
    5145  size_t dstBlockIndex, VkDeviceSize dstOffset,
    5146  size_t srcBlockIndex, VkDeviceSize srcOffset);
    5147 
    5148 public:
    5149  VmaDefragmentator(
    5150  VmaAllocator hAllocator,
    5151  VmaBlockVector* pBlockVector,
    5152  uint32_t currentFrameIndex);
    5153 
    5154  ~VmaDefragmentator();
    5155 
    5156  VkDeviceSize GetBytesMoved() const { return m_BytesMoved; }
    5157  uint32_t GetAllocationsMoved() const { return m_AllocationsMoved; }
    5158 
    5159  void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged);
    5160 
    5161  VkResult Defragment(
    5162  VkDeviceSize maxBytesToMove,
    5163  uint32_t maxAllocationsToMove);
    5164 };
    5165 
    5166 #if VMA_RECORDING_ENABLED
    5167 
    5168 class VmaRecorder
    5169 {
    5170 public:
    5171  VmaRecorder();
    5172  VkResult Init(const VmaRecordSettings& settings, bool useMutex);
    5173  void WriteConfiguration(
    5174  const VkPhysicalDeviceProperties& devProps,
    5175  const VkPhysicalDeviceMemoryProperties& memProps,
    5176  bool dedicatedAllocationExtensionEnabled);
    5177  ~VmaRecorder();
    5178 
    5179  void RecordCreateAllocator(uint32_t frameIndex);
    5180  void RecordDestroyAllocator(uint32_t frameIndex);
    5181  void RecordCreatePool(uint32_t frameIndex,
    5182  const VmaPoolCreateInfo& createInfo,
    5183  VmaPool pool);
    5184  void RecordDestroyPool(uint32_t frameIndex, VmaPool pool);
    5185  void RecordAllocateMemory(uint32_t frameIndex,
    5186  const VkMemoryRequirements& vkMemReq,
    5187  const VmaAllocationCreateInfo& createInfo,
    5188  VmaAllocation allocation);
    5189  void RecordAllocateMemoryForBuffer(uint32_t frameIndex,
    5190  const VkMemoryRequirements& vkMemReq,
    5191  bool requiresDedicatedAllocation,
    5192  bool prefersDedicatedAllocation,
    5193  const VmaAllocationCreateInfo& createInfo,
    5194  VmaAllocation allocation);
    5195  void RecordAllocateMemoryForImage(uint32_t frameIndex,
    5196  const VkMemoryRequirements& vkMemReq,
    5197  bool requiresDedicatedAllocation,
    5198  bool prefersDedicatedAllocation,
    5199  const VmaAllocationCreateInfo& createInfo,
    5200  VmaAllocation allocation);
    5201  void RecordFreeMemory(uint32_t frameIndex,
    5202  VmaAllocation allocation);
    5203  void RecordSetAllocationUserData(uint32_t frameIndex,
    5204  VmaAllocation allocation,
    5205  const void* pUserData);
    5206  void RecordCreateLostAllocation(uint32_t frameIndex,
    5207  VmaAllocation allocation);
    5208  void RecordMapMemory(uint32_t frameIndex,
    5209  VmaAllocation allocation);
    5210  void RecordUnmapMemory(uint32_t frameIndex,
    5211  VmaAllocation allocation);
    5212  void RecordFlushAllocation(uint32_t frameIndex,
    5213  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    5214  void RecordInvalidateAllocation(uint32_t frameIndex,
    5215  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size);
    5216  void RecordCreateBuffer(uint32_t frameIndex,
    5217  const VkBufferCreateInfo& bufCreateInfo,
    5218  const VmaAllocationCreateInfo& allocCreateInfo,
    5219  VmaAllocation allocation);
    5220  void RecordCreateImage(uint32_t frameIndex,
    5221  const VkImageCreateInfo& imageCreateInfo,
    5222  const VmaAllocationCreateInfo& allocCreateInfo,
    5223  VmaAllocation allocation);
    5224  void RecordDestroyBuffer(uint32_t frameIndex,
    5225  VmaAllocation allocation);
    5226  void RecordDestroyImage(uint32_t frameIndex,
    5227  VmaAllocation allocation);
    5228  void RecordTouchAllocation(uint32_t frameIndex,
    5229  VmaAllocation allocation);
    5230  void RecordGetAllocationInfo(uint32_t frameIndex,
    5231  VmaAllocation allocation);
    5232  void RecordMakePoolAllocationsLost(uint32_t frameIndex,
    5233  VmaPool pool);
    5234 
    5235 private:
    5236  struct CallParams
    5237  {
    5238  uint32_t threadId;
    5239  double time;
    5240  };
    5241 
    5242  class UserDataString
    5243  {
    5244  public:
    5245  UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData);
    5246  const char* GetString() const { return m_Str; }
    5247 
    5248  private:
    5249  char m_PtrStr[17];
    5250  const char* m_Str;
    5251  };
    5252 
    5253  bool m_UseMutex;
    5254  VmaRecordFlags m_Flags;
    5255  FILE* m_File;
    5256  VMA_MUTEX m_FileMutex;
    5257  int64_t m_Freq;
    5258  int64_t m_StartCounter;
    5259 
    5260  void GetBasicParams(CallParams& outParams);
    5261  void Flush();
    5262 };
    5263 
    5264 #endif // #if VMA_RECORDING_ENABLED
    5265 
    5266 // Main allocator object.
    5267 struct VmaAllocator_T
    5268 {
    5269  VMA_CLASS_NO_COPY(VmaAllocator_T)
    5270 public:
    5271  bool m_UseMutex;
    5272  bool m_UseKhrDedicatedAllocation;
    5273  VkDevice m_hDevice;
    5274  bool m_AllocationCallbacksSpecified;
    5275  VkAllocationCallbacks m_AllocationCallbacks;
    5276  VmaDeviceMemoryCallbacks m_DeviceMemoryCallbacks;
    5277 
    5278  // Number of bytes free out of limit, or VK_WHOLE_SIZE if not limit for that heap.
    5279  VkDeviceSize m_HeapSizeLimit[VK_MAX_MEMORY_HEAPS];
    5280  VMA_MUTEX m_HeapSizeLimitMutex;
    5281 
    5282  VkPhysicalDeviceProperties m_PhysicalDeviceProperties;
    5283  VkPhysicalDeviceMemoryProperties m_MemProps;
    5284 
    5285  // Default pools.
    5286  VmaBlockVector* m_pBlockVectors[VK_MAX_MEMORY_TYPES];
    5287 
    5288  // Each vector is sorted by memory (handle value).
    5289  typedef VmaVector< VmaAllocation, VmaStlAllocator<VmaAllocation> > AllocationVectorType;
    5290  AllocationVectorType* m_pDedicatedAllocations[VK_MAX_MEMORY_TYPES];
    5291  VMA_MUTEX m_DedicatedAllocationsMutex[VK_MAX_MEMORY_TYPES];
    5292 
    5293  VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo);
    5294  VkResult Init(const VmaAllocatorCreateInfo* pCreateInfo);
    5295  ~VmaAllocator_T();
    5296 
    5297  const VkAllocationCallbacks* GetAllocationCallbacks() const
    5298  {
    5299  return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : 0;
    5300  }
    5301  const VmaVulkanFunctions& GetVulkanFunctions() const
    5302  {
    5303  return m_VulkanFunctions;
    5304  }
    5305 
    5306  VkDeviceSize GetBufferImageGranularity() const
    5307  {
    5308  return VMA_MAX(
    5309  static_cast<VkDeviceSize>(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY),
    5310  m_PhysicalDeviceProperties.limits.bufferImageGranularity);
    5311  }
    5312 
    5313  uint32_t GetMemoryHeapCount() const { return m_MemProps.memoryHeapCount; }
    5314  uint32_t GetMemoryTypeCount() const { return m_MemProps.memoryTypeCount; }
    5315 
    5316  uint32_t MemoryTypeIndexToHeapIndex(uint32_t memTypeIndex) const
    5317  {
    5318  VMA_ASSERT(memTypeIndex < m_MemProps.memoryTypeCount);
    5319  return m_MemProps.memoryTypes[memTypeIndex].heapIndex;
    5320  }
    5321  // True when specific memory type is HOST_VISIBLE but not HOST_COHERENT.
    5322  bool IsMemoryTypeNonCoherent(uint32_t memTypeIndex) const
    5323  {
    5324  return (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & (VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) ==
    5325  VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    5326  }
    5327  // Minimum alignment for all allocations in specific memory type.
    5328  VkDeviceSize GetMemoryTypeMinAlignment(uint32_t memTypeIndex) const
    5329  {
    5330  return IsMemoryTypeNonCoherent(memTypeIndex) ?
    5331  VMA_MAX((VkDeviceSize)VMA_DEBUG_ALIGNMENT, m_PhysicalDeviceProperties.limits.nonCoherentAtomSize) :
    5332  (VkDeviceSize)VMA_DEBUG_ALIGNMENT;
    5333  }
    5334 
    5335  bool IsIntegratedGpu() const
    5336  {
    5337  return m_PhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
    5338  }
    5339 
    5340 #if VMA_RECORDING_ENABLED
    5341  VmaRecorder* GetRecorder() const { return m_pRecorder; }
    5342 #endif
    5343 
    5344  void GetBufferMemoryRequirements(
    5345  VkBuffer hBuffer,
    5346  VkMemoryRequirements& memReq,
    5347  bool& requiresDedicatedAllocation,
    5348  bool& prefersDedicatedAllocation) const;
    5349  void GetImageMemoryRequirements(
    5350  VkImage hImage,
    5351  VkMemoryRequirements& memReq,
    5352  bool& requiresDedicatedAllocation,
    5353  bool& prefersDedicatedAllocation) const;
    5354 
    5355  // Main allocation function.
    5356  VkResult AllocateMemory(
    5357  const VkMemoryRequirements& vkMemReq,
    5358  bool requiresDedicatedAllocation,
    5359  bool prefersDedicatedAllocation,
    5360  VkBuffer dedicatedBuffer,
    5361  VkImage dedicatedImage,
    5362  const VmaAllocationCreateInfo& createInfo,
    5363  VmaSuballocationType suballocType,
    5364  VmaAllocation* pAllocation);
    5365 
    5366  // Main deallocation function.
    5367  void FreeMemory(const VmaAllocation allocation);
    5368 
    5369  void CalculateStats(VmaStats* pStats);
    5370 
    5371 #if VMA_STATS_STRING_ENABLED
    5372  void PrintDetailedMap(class VmaJsonWriter& json);
    5373 #endif
    5374 
    5375  VkResult Defragment(
    5376  VmaAllocation* pAllocations,
    5377  size_t allocationCount,
    5378  VkBool32* pAllocationsChanged,
    5379  const VmaDefragmentationInfo* pDefragmentationInfo,
    5380  VmaDefragmentationStats* pDefragmentationStats);
    5381 
    5382  void GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo);
    5383  bool TouchAllocation(VmaAllocation hAllocation);
    5384 
    5385  VkResult CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool);
    5386  void DestroyPool(VmaPool pool);
    5387  void GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats);
    5388 
    5389  void SetCurrentFrameIndex(uint32_t frameIndex);
    5390  uint32_t GetCurrentFrameIndex() const { return m_CurrentFrameIndex.load(); }
    5391 
    5392  void MakePoolAllocationsLost(
    5393  VmaPool hPool,
    5394  size_t* pLostAllocationCount);
    5395  VkResult CheckPoolCorruption(VmaPool hPool);
    5396  VkResult CheckCorruption(uint32_t memoryTypeBits);
    5397 
    5398  void CreateLostAllocation(VmaAllocation* pAllocation);
    5399 
    5400  VkResult AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory);
    5401  void FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory);
    5402 
    5403  VkResult Map(VmaAllocation hAllocation, void** ppData);
    5404  void Unmap(VmaAllocation hAllocation);
    5405 
    5406  VkResult BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer);
    5407  VkResult BindImageMemory(VmaAllocation hAllocation, VkImage hImage);
    5408 
    5409  void FlushOrInvalidateAllocation(
    5410  VmaAllocation hAllocation,
    5411  VkDeviceSize offset, VkDeviceSize size,
    5412  VMA_CACHE_OPERATION op);
    5413 
    5414  void FillAllocation(const VmaAllocation hAllocation, uint8_t pattern);
    5415 
    5416 private:
    5417  VkDeviceSize m_PreferredLargeHeapBlockSize;
    5418 
    5419  VkPhysicalDevice m_PhysicalDevice;
    5420  VMA_ATOMIC_UINT32 m_CurrentFrameIndex;
    5421 
    5422  VMA_MUTEX m_PoolsMutex;
    5423  // Protected by m_PoolsMutex. Sorted by pointer value.
    5424  VmaVector<VmaPool, VmaStlAllocator<VmaPool> > m_Pools;
    5425  uint32_t m_NextPoolId;
    5426 
    5427  VmaVulkanFunctions m_VulkanFunctions;
    5428 
    5429 #if VMA_RECORDING_ENABLED
    5430  VmaRecorder* m_pRecorder;
    5431 #endif
    5432 
    5433  void ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions);
    5434 
    5435  VkDeviceSize CalcPreferredBlockSize(uint32_t memTypeIndex);
    5436 
    5437  VkResult AllocateMemoryOfType(
    5438  VkDeviceSize size,
    5439  VkDeviceSize alignment,
    5440  bool dedicatedAllocation,
    5441  VkBuffer dedicatedBuffer,
    5442  VkImage dedicatedImage,
    5443  const VmaAllocationCreateInfo& createInfo,
    5444  uint32_t memTypeIndex,
    5445  VmaSuballocationType suballocType,
    5446  VmaAllocation* pAllocation);
    5447 
    5448  // Allocates and registers new VkDeviceMemory specifically for single allocation.
    5449  VkResult AllocateDedicatedMemory(
    5450  VkDeviceSize size,
    5451  VmaSuballocationType suballocType,
    5452  uint32_t memTypeIndex,
    5453  bool map,
    5454  bool isUserDataString,
    5455  void* pUserData,
    5456  VkBuffer dedicatedBuffer,
    5457  VkImage dedicatedImage,
    5458  VmaAllocation* pAllocation);
    5459 
    5460  // Tries to free pMemory as Dedicated Memory. Returns true if found and freed.
    5461  void FreeDedicatedMemory(VmaAllocation allocation);
    5462 };
    5463 
    5465 // Memory allocation #2 after VmaAllocator_T definition
    5466 
    5467 static void* VmaMalloc(VmaAllocator hAllocator, size_t size, size_t alignment)
    5468 {
    5469  return VmaMalloc(&hAllocator->m_AllocationCallbacks, size, alignment);
    5470 }
    5471 
    5472 static void VmaFree(VmaAllocator hAllocator, void* ptr)
    5473 {
    5474  VmaFree(&hAllocator->m_AllocationCallbacks, ptr);
    5475 }
    5476 
    5477 template<typename T>
    5478 static T* VmaAllocate(VmaAllocator hAllocator)
    5479 {
    5480  return (T*)VmaMalloc(hAllocator, sizeof(T), VMA_ALIGN_OF(T));
    5481 }
    5482 
    5483 template<typename T>
    5484 static T* VmaAllocateArray(VmaAllocator hAllocator, size_t count)
    5485 {
    5486  return (T*)VmaMalloc(hAllocator, sizeof(T) * count, VMA_ALIGN_OF(T));
    5487 }
    5488 
    5489 template<typename T>
    5490 static void vma_delete(VmaAllocator hAllocator, T* ptr)
    5491 {
    5492  if(ptr != VMA_NULL)
    5493  {
    5494  ptr->~T();
    5495  VmaFree(hAllocator, ptr);
    5496  }
    5497 }
    5498 
    5499 template<typename T>
    5500 static void vma_delete_array(VmaAllocator hAllocator, T* ptr, size_t count)
    5501 {
    5502  if(ptr != VMA_NULL)
    5503  {
    5504  for(size_t i = count; i--; )
    5505  ptr[i].~T();
    5506  VmaFree(hAllocator, ptr);
    5507  }
    5508 }
    5509 
    5511 // VmaStringBuilder
    5512 
    5513 #if VMA_STATS_STRING_ENABLED
    5514 
    5515 class VmaStringBuilder
    5516 {
    5517 public:
    5518  VmaStringBuilder(VmaAllocator alloc) : m_Data(VmaStlAllocator<char>(alloc->GetAllocationCallbacks())) { }
    5519  size_t GetLength() const { return m_Data.size(); }
    5520  const char* GetData() const { return m_Data.data(); }
    5521 
    5522  void Add(char ch) { m_Data.push_back(ch); }
    5523  void Add(const char* pStr);
    5524  void AddNewLine() { Add('\n'); }
    5525  void AddNumber(uint32_t num);
    5526  void AddNumber(uint64_t num);
    5527  void AddPointer(const void* ptr);
    5528 
    5529 private:
    5530  VmaVector< char, VmaStlAllocator<char> > m_Data;
    5531 };
    5532 
    5533 void VmaStringBuilder::Add(const char* pStr)
    5534 {
    5535  const size_t strLen = strlen(pStr);
    5536  if(strLen > 0)
    5537  {
    5538  const size_t oldCount = m_Data.size();
    5539  m_Data.resize(oldCount + strLen);
    5540  memcpy(m_Data.data() + oldCount, pStr, strLen);
    5541  }
    5542 }
    5543 
    5544 void VmaStringBuilder::AddNumber(uint32_t num)
    5545 {
    5546  char buf[11];
    5547  VmaUint32ToStr(buf, sizeof(buf), num);
    5548  Add(buf);
    5549 }
    5550 
    5551 void VmaStringBuilder::AddNumber(uint64_t num)
    5552 {
    5553  char buf[21];
    5554  VmaUint64ToStr(buf, sizeof(buf), num);
    5555  Add(buf);
    5556 }
    5557 
    5558 void VmaStringBuilder::AddPointer(const void* ptr)
    5559 {
    5560  char buf[21];
    5561  VmaPtrToStr(buf, sizeof(buf), ptr);
    5562  Add(buf);
    5563 }
    5564 
    5565 #endif // #if VMA_STATS_STRING_ENABLED
    5566 
    5568 // VmaJsonWriter
    5569 
    5570 #if VMA_STATS_STRING_ENABLED
    5571 
    5572 class VmaJsonWriter
    5573 {
    5574  VMA_CLASS_NO_COPY(VmaJsonWriter)
    5575 public:
    5576  VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb);
    5577  ~VmaJsonWriter();
    5578 
    5579  void BeginObject(bool singleLine = false);
    5580  void EndObject();
    5581 
    5582  void BeginArray(bool singleLine = false);
    5583  void EndArray();
    5584 
    5585  void WriteString(const char* pStr);
    5586  void BeginString(const char* pStr = VMA_NULL);
    5587  void ContinueString(const char* pStr);
    5588  void ContinueString(uint32_t n);
    5589  void ContinueString(uint64_t n);
    5590  void ContinueString_Pointer(const void* ptr);
    5591  void EndString(const char* pStr = VMA_NULL);
    5592 
    5593  void WriteNumber(uint32_t n);
    5594  void WriteNumber(uint64_t n);
    5595  void WriteBool(bool b);
    5596  void WriteNull();
    5597 
    5598 private:
    5599  static const char* const INDENT;
    5600 
    5601  enum COLLECTION_TYPE
    5602  {
    5603  COLLECTION_TYPE_OBJECT,
    5604  COLLECTION_TYPE_ARRAY,
    5605  };
    5606  struct StackItem
    5607  {
    5608  COLLECTION_TYPE type;
    5609  uint32_t valueCount;
    5610  bool singleLineMode;
    5611  };
    5612 
    5613  VmaStringBuilder& m_SB;
    5614  VmaVector< StackItem, VmaStlAllocator<StackItem> > m_Stack;
    5615  bool m_InsideString;
    5616 
    5617  void BeginValue(bool isString);
    5618  void WriteIndent(bool oneLess = false);
    5619 };
    5620 
    5621 const char* const VmaJsonWriter::INDENT = " ";
    5622 
    5623 VmaJsonWriter::VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb) :
    5624  m_SB(sb),
    5625  m_Stack(VmaStlAllocator<StackItem>(pAllocationCallbacks)),
    5626  m_InsideString(false)
    5627 {
    5628 }
    5629 
    5630 VmaJsonWriter::~VmaJsonWriter()
    5631 {
    5632  VMA_ASSERT(!m_InsideString);
    5633  VMA_ASSERT(m_Stack.empty());
    5634 }
    5635 
    5636 void VmaJsonWriter::BeginObject(bool singleLine)
    5637 {
    5638  VMA_ASSERT(!m_InsideString);
    5639 
    5640  BeginValue(false);
    5641  m_SB.Add('{');
    5642 
    5643  StackItem item;
    5644  item.type = COLLECTION_TYPE_OBJECT;
    5645  item.valueCount = 0;
    5646  item.singleLineMode = singleLine;
    5647  m_Stack.push_back(item);
    5648 }
    5649 
    5650 void VmaJsonWriter::EndObject()
    5651 {
    5652  VMA_ASSERT(!m_InsideString);
    5653 
    5654  WriteIndent(true);
    5655  m_SB.Add('}');
    5656 
    5657  VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_OBJECT);
    5658  m_Stack.pop_back();
    5659 }
    5660 
    5661 void VmaJsonWriter::BeginArray(bool singleLine)
    5662 {
    5663  VMA_ASSERT(!m_InsideString);
    5664 
    5665  BeginValue(false);
    5666  m_SB.Add('[');
    5667 
    5668  StackItem item;
    5669  item.type = COLLECTION_TYPE_ARRAY;
    5670  item.valueCount = 0;
    5671  item.singleLineMode = singleLine;
    5672  m_Stack.push_back(item);
    5673 }
    5674 
    5675 void VmaJsonWriter::EndArray()
    5676 {
    5677  VMA_ASSERT(!m_InsideString);
    5678 
    5679  WriteIndent(true);
    5680  m_SB.Add(']');
    5681 
    5682  VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_ARRAY);
    5683  m_Stack.pop_back();
    5684 }
    5685 
    5686 void VmaJsonWriter::WriteString(const char* pStr)
    5687 {
    5688  BeginString(pStr);
    5689  EndString();
    5690 }
    5691 
    5692 void VmaJsonWriter::BeginString(const char* pStr)
    5693 {
    5694  VMA_ASSERT(!m_InsideString);
    5695 
    5696  BeginValue(true);
    5697  m_SB.Add('"');
    5698  m_InsideString = true;
    5699  if(pStr != VMA_NULL && pStr[0] != '\0')
    5700  {
    5701  ContinueString(pStr);
    5702  }
    5703 }
    5704 
    5705 void VmaJsonWriter::ContinueString(const char* pStr)
    5706 {
    5707  VMA_ASSERT(m_InsideString);
    5708 
    5709  const size_t strLen = strlen(pStr);
    5710  for(size_t i = 0; i < strLen; ++i)
    5711  {
    5712  char ch = pStr[i];
    5713  if(ch == '\\')
    5714  {
    5715  m_SB.Add("\\\\");
    5716  }
    5717  else if(ch == '"')
    5718  {
    5719  m_SB.Add("\\\"");
    5720  }
    5721  else if(ch >= 32)
    5722  {
    5723  m_SB.Add(ch);
    5724  }
    5725  else switch(ch)
    5726  {
    5727  case '\b':
    5728  m_SB.Add("\\b");
    5729  break;
    5730  case '\f':
    5731  m_SB.Add("\\f");
    5732  break;
    5733  case '\n':
    5734  m_SB.Add("\\n");
    5735  break;
    5736  case '\r':
    5737  m_SB.Add("\\r");
    5738  break;
    5739  case '\t':
    5740  m_SB.Add("\\t");
    5741  break;
    5742  default:
    5743  VMA_ASSERT(0 && "Character not currently supported.");
    5744  break;
    5745  }
    5746  }
    5747 }
    5748 
    5749 void VmaJsonWriter::ContinueString(uint32_t n)
    5750 {
    5751  VMA_ASSERT(m_InsideString);
    5752  m_SB.AddNumber(n);
    5753 }
    5754 
    5755 void VmaJsonWriter::ContinueString(uint64_t n)
    5756 {
    5757  VMA_ASSERT(m_InsideString);
    5758  m_SB.AddNumber(n);
    5759 }
    5760 
    5761 void VmaJsonWriter::ContinueString_Pointer(const void* ptr)
    5762 {
    5763  VMA_ASSERT(m_InsideString);
    5764  m_SB.AddPointer(ptr);
    5765 }
    5766 
    5767 void VmaJsonWriter::EndString(const char* pStr)
    5768 {
    5769  VMA_ASSERT(m_InsideString);
    5770  if(pStr != VMA_NULL && pStr[0] != '\0')
    5771  {
    5772  ContinueString(pStr);
    5773  }
    5774  m_SB.Add('"');
    5775  m_InsideString = false;
    5776 }
    5777 
    5778 void VmaJsonWriter::WriteNumber(uint32_t n)
    5779 {
    5780  VMA_ASSERT(!m_InsideString);
    5781  BeginValue(false);
    5782  m_SB.AddNumber(n);
    5783 }
    5784 
    5785 void VmaJsonWriter::WriteNumber(uint64_t n)
    5786 {
    5787  VMA_ASSERT(!m_InsideString);
    5788  BeginValue(false);
    5789  m_SB.AddNumber(n);
    5790 }
    5791 
    5792 void VmaJsonWriter::WriteBool(bool b)
    5793 {
    5794  VMA_ASSERT(!m_InsideString);
    5795  BeginValue(false);
    5796  m_SB.Add(b ? "true" : "false");
    5797 }
    5798 
    5799 void VmaJsonWriter::WriteNull()
    5800 {
    5801  VMA_ASSERT(!m_InsideString);
    5802  BeginValue(false);
    5803  m_SB.Add("null");
    5804 }
    5805 
    5806 void VmaJsonWriter::BeginValue(bool isString)
    5807 {
    5808  if(!m_Stack.empty())
    5809  {
    5810  StackItem& currItem = m_Stack.back();
    5811  if(currItem.type == COLLECTION_TYPE_OBJECT &&
    5812  currItem.valueCount % 2 == 0)
    5813  {
    5814  VMA_ASSERT(isString);
    5815  }
    5816 
    5817  if(currItem.type == COLLECTION_TYPE_OBJECT &&
    5818  currItem.valueCount % 2 != 0)
    5819  {
    5820  m_SB.Add(": ");
    5821  }
    5822  else if(currItem.valueCount > 0)
    5823  {
    5824  m_SB.Add(", ");
    5825  WriteIndent();
    5826  }
    5827  else
    5828  {
    5829  WriteIndent();
    5830  }
    5831  ++currItem.valueCount;
    5832  }
    5833 }
    5834 
    5835 void VmaJsonWriter::WriteIndent(bool oneLess)
    5836 {
    5837  if(!m_Stack.empty() && !m_Stack.back().singleLineMode)
    5838  {
    5839  m_SB.AddNewLine();
    5840 
    5841  size_t count = m_Stack.size();
    5842  if(count > 0 && oneLess)
    5843  {
    5844  --count;
    5845  }
    5846  for(size_t i = 0; i < count; ++i)
    5847  {
    5848  m_SB.Add(INDENT);
    5849  }
    5850  }
    5851 }
    5852 
    5853 #endif // #if VMA_STATS_STRING_ENABLED
    5854 
    5856 
    5857 void VmaAllocation_T::SetUserData(VmaAllocator hAllocator, void* pUserData)
    5858 {
    5859  if(IsUserDataString())
    5860  {
    5861  VMA_ASSERT(pUserData == VMA_NULL || pUserData != m_pUserData);
    5862 
    5863  FreeUserDataString(hAllocator);
    5864 
    5865  if(pUserData != VMA_NULL)
    5866  {
    5867  const char* const newStrSrc = (char*)pUserData;
    5868  const size_t newStrLen = strlen(newStrSrc);
    5869  char* const newStrDst = vma_new_array(hAllocator, char, newStrLen + 1);
    5870  memcpy(newStrDst, newStrSrc, newStrLen + 1);
    5871  m_pUserData = newStrDst;
    5872  }
    5873  }
    5874  else
    5875  {
    5876  m_pUserData = pUserData;
    5877  }
    5878 }
    5879 
    5880 void VmaAllocation_T::ChangeBlockAllocation(
    5881  VmaAllocator hAllocator,
    5882  VmaDeviceMemoryBlock* block,
    5883  VkDeviceSize offset)
    5884 {
    5885  VMA_ASSERT(block != VMA_NULL);
    5886  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    5887 
    5888  // Move mapping reference counter from old block to new block.
    5889  if(block != m_BlockAllocation.m_Block)
    5890  {
    5891  uint32_t mapRefCount = m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP;
    5892  if(IsPersistentMap())
    5893  ++mapRefCount;
    5894  m_BlockAllocation.m_Block->Unmap(hAllocator, mapRefCount);
    5895  block->Map(hAllocator, mapRefCount, VMA_NULL);
    5896  }
    5897 
    5898  m_BlockAllocation.m_Block = block;
    5899  m_BlockAllocation.m_Offset = offset;
    5900 }
    5901 
    5902 VkDeviceSize VmaAllocation_T::GetOffset() const
    5903 {
    5904  switch(m_Type)
    5905  {
    5906  case ALLOCATION_TYPE_BLOCK:
    5907  return m_BlockAllocation.m_Offset;
    5908  case ALLOCATION_TYPE_DEDICATED:
    5909  return 0;
    5910  default:
    5911  VMA_ASSERT(0);
    5912  return 0;
    5913  }
    5914 }
    5915 
    5916 VkDeviceMemory VmaAllocation_T::GetMemory() const
    5917 {
    5918  switch(m_Type)
    5919  {
    5920  case ALLOCATION_TYPE_BLOCK:
    5921  return m_BlockAllocation.m_Block->GetDeviceMemory();
    5922  case ALLOCATION_TYPE_DEDICATED:
    5923  return m_DedicatedAllocation.m_hMemory;
    5924  default:
    5925  VMA_ASSERT(0);
    5926  return VK_NULL_HANDLE;
    5927  }
    5928 }
    5929 
    5930 uint32_t VmaAllocation_T::GetMemoryTypeIndex() const
    5931 {
    5932  switch(m_Type)
    5933  {
    5934  case ALLOCATION_TYPE_BLOCK:
    5935  return m_BlockAllocation.m_Block->GetMemoryTypeIndex();
    5936  case ALLOCATION_TYPE_DEDICATED:
    5937  return m_DedicatedAllocation.m_MemoryTypeIndex;
    5938  default:
    5939  VMA_ASSERT(0);
    5940  return UINT32_MAX;
    5941  }
    5942 }
    5943 
    5944 void* VmaAllocation_T::GetMappedData() const
    5945 {
    5946  switch(m_Type)
    5947  {
    5948  case ALLOCATION_TYPE_BLOCK:
    5949  if(m_MapCount != 0)
    5950  {
    5951  void* pBlockData = m_BlockAllocation.m_Block->GetMappedData();
    5952  VMA_ASSERT(pBlockData != VMA_NULL);
    5953  return (char*)pBlockData + m_BlockAllocation.m_Offset;
    5954  }
    5955  else
    5956  {
    5957  return VMA_NULL;
    5958  }
    5959  break;
    5960  case ALLOCATION_TYPE_DEDICATED:
    5961  VMA_ASSERT((m_DedicatedAllocation.m_pMappedData != VMA_NULL) == (m_MapCount != 0));
    5962  return m_DedicatedAllocation.m_pMappedData;
    5963  default:
    5964  VMA_ASSERT(0);
    5965  return VMA_NULL;
    5966  }
    5967 }
    5968 
    5969 bool VmaAllocation_T::CanBecomeLost() const
    5970 {
    5971  switch(m_Type)
    5972  {
    5973  case ALLOCATION_TYPE_BLOCK:
    5974  return m_BlockAllocation.m_CanBecomeLost;
    5975  case ALLOCATION_TYPE_DEDICATED:
    5976  return false;
    5977  default:
    5978  VMA_ASSERT(0);
    5979  return false;
    5980  }
    5981 }
    5982 
    5983 VmaPool VmaAllocation_T::GetPool() const
    5984 {
    5985  VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
    5986  return m_BlockAllocation.m_hPool;
    5987 }
    5988 
    5989 bool VmaAllocation_T::MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    5990 {
    5991  VMA_ASSERT(CanBecomeLost());
    5992 
    5993  /*
    5994  Warning: This is a carefully designed algorithm.
    5995  Do not modify unless you really know what you're doing :)
    5996  */
    5997  uint32_t localLastUseFrameIndex = GetLastUseFrameIndex();
    5998  for(;;)
    5999  {
    6000  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    6001  {
    6002  VMA_ASSERT(0);
    6003  return false;
    6004  }
    6005  else if(localLastUseFrameIndex + frameInUseCount >= currentFrameIndex)
    6006  {
    6007  return false;
    6008  }
    6009  else // Last use time earlier than current time.
    6010  {
    6011  if(CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, VMA_FRAME_INDEX_LOST))
    6012  {
    6013  // Setting hAllocation.LastUseFrameIndex atomic to VMA_FRAME_INDEX_LOST is enough to mark it as LOST.
    6014  // Calling code just needs to unregister this allocation in owning VmaDeviceMemoryBlock.
    6015  return true;
    6016  }
    6017  }
    6018  }
    6019 }
    6020 
    6021 #if VMA_STATS_STRING_ENABLED
    6022 
    6023 // Correspond to values of enum VmaSuballocationType.
    6024 static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = {
    6025  "FREE",
    6026  "UNKNOWN",
    6027  "BUFFER",
    6028  "IMAGE_UNKNOWN",
    6029  "IMAGE_LINEAR",
    6030  "IMAGE_OPTIMAL",
    6031 };
    6032 
    6033 void VmaAllocation_T::PrintParameters(class VmaJsonWriter& json) const
    6034 {
    6035  json.WriteString("Type");
    6036  json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[m_SuballocationType]);
    6037 
    6038  json.WriteString("Size");
    6039  json.WriteNumber(m_Size);
    6040 
    6041  if(m_pUserData != VMA_NULL)
    6042  {
    6043  json.WriteString("UserData");
    6044  if(IsUserDataString())
    6045  {
    6046  json.WriteString((const char*)m_pUserData);
    6047  }
    6048  else
    6049  {
    6050  json.BeginString();
    6051  json.ContinueString_Pointer(m_pUserData);
    6052  json.EndString();
    6053  }
    6054  }
    6055 
    6056  json.WriteString("CreationFrameIndex");
    6057  json.WriteNumber(m_CreationFrameIndex);
    6058 
    6059  json.WriteString("LastUseFrameIndex");
    6060  json.WriteNumber(GetLastUseFrameIndex());
    6061 
    6062  if(m_BufferImageUsage != 0)
    6063  {
    6064  json.WriteString("Usage");
    6065  json.WriteNumber(m_BufferImageUsage);
    6066  }
    6067 }
    6068 
    6069 #endif
    6070 
    6071 void VmaAllocation_T::FreeUserDataString(VmaAllocator hAllocator)
    6072 {
    6073  VMA_ASSERT(IsUserDataString());
    6074  if(m_pUserData != VMA_NULL)
    6075  {
    6076  char* const oldStr = (char*)m_pUserData;
    6077  const size_t oldStrLen = strlen(oldStr);
    6078  vma_delete_array(hAllocator, oldStr, oldStrLen + 1);
    6079  m_pUserData = VMA_NULL;
    6080  }
    6081 }
    6082 
    6083 void VmaAllocation_T::BlockAllocMap()
    6084 {
    6085  VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
    6086 
    6087  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) < 0x7F)
    6088  {
    6089  ++m_MapCount;
    6090  }
    6091  else
    6092  {
    6093  VMA_ASSERT(0 && "Allocation mapped too many times simultaneously.");
    6094  }
    6095 }
    6096 
    6097 void VmaAllocation_T::BlockAllocUnmap()
    6098 {
    6099  VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
    6100 
    6101  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) != 0)
    6102  {
    6103  --m_MapCount;
    6104  }
    6105  else
    6106  {
    6107  VMA_ASSERT(0 && "Unmapping allocation not previously mapped.");
    6108  }
    6109 }
    6110 
    6111 VkResult VmaAllocation_T::DedicatedAllocMap(VmaAllocator hAllocator, void** ppData)
    6112 {
    6113  VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
    6114 
    6115  if(m_MapCount != 0)
    6116  {
    6117  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) < 0x7F)
    6118  {
    6119  VMA_ASSERT(m_DedicatedAllocation.m_pMappedData != VMA_NULL);
    6120  *ppData = m_DedicatedAllocation.m_pMappedData;
    6121  ++m_MapCount;
    6122  return VK_SUCCESS;
    6123  }
    6124  else
    6125  {
    6126  VMA_ASSERT(0 && "Dedicated allocation mapped too many times simultaneously.");
    6127  return VK_ERROR_MEMORY_MAP_FAILED;
    6128  }
    6129  }
    6130  else
    6131  {
    6132  VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
    6133  hAllocator->m_hDevice,
    6134  m_DedicatedAllocation.m_hMemory,
    6135  0, // offset
    6136  VK_WHOLE_SIZE,
    6137  0, // flags
    6138  ppData);
    6139  if(result == VK_SUCCESS)
    6140  {
    6141  m_DedicatedAllocation.m_pMappedData = *ppData;
    6142  m_MapCount = 1;
    6143  }
    6144  return result;
    6145  }
    6146 }
    6147 
    6148 void VmaAllocation_T::DedicatedAllocUnmap(VmaAllocator hAllocator)
    6149 {
    6150  VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
    6151 
    6152  if((m_MapCount & ~MAP_COUNT_FLAG_PERSISTENT_MAP) != 0)
    6153  {
    6154  --m_MapCount;
    6155  if(m_MapCount == 0)
    6156  {
    6157  m_DedicatedAllocation.m_pMappedData = VMA_NULL;
    6158  (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(
    6159  hAllocator->m_hDevice,
    6160  m_DedicatedAllocation.m_hMemory);
    6161  }
    6162  }
    6163  else
    6164  {
    6165  VMA_ASSERT(0 && "Unmapping dedicated allocation not previously mapped.");
    6166  }
    6167 }
    6168 
    6169 #if VMA_STATS_STRING_ENABLED
    6170 
    6171 static void VmaPrintStatInfo(VmaJsonWriter& json, const VmaStatInfo& stat)
    6172 {
    6173  json.BeginObject();
    6174 
    6175  json.WriteString("Blocks");
    6176  json.WriteNumber(stat.blockCount);
    6177 
    6178  json.WriteString("Allocations");
    6179  json.WriteNumber(stat.allocationCount);
    6180 
    6181  json.WriteString("UnusedRanges");
    6182  json.WriteNumber(stat.unusedRangeCount);
    6183 
    6184  json.WriteString("UsedBytes");
    6185  json.WriteNumber(stat.usedBytes);
    6186 
    6187  json.WriteString("UnusedBytes");
    6188  json.WriteNumber(stat.unusedBytes);
    6189 
    6190  if(stat.allocationCount > 1)
    6191  {
    6192  json.WriteString("AllocationSize");
    6193  json.BeginObject(true);
    6194  json.WriteString("Min");
    6195  json.WriteNumber(stat.allocationSizeMin);
    6196  json.WriteString("Avg");
    6197  json.WriteNumber(stat.allocationSizeAvg);
    6198  json.WriteString("Max");
    6199  json.WriteNumber(stat.allocationSizeMax);
    6200  json.EndObject();
    6201  }
    6202 
    6203  if(stat.unusedRangeCount > 1)
    6204  {
    6205  json.WriteString("UnusedRangeSize");
    6206  json.BeginObject(true);
    6207  json.WriteString("Min");
    6208  json.WriteNumber(stat.unusedRangeSizeMin);
    6209  json.WriteString("Avg");
    6210  json.WriteNumber(stat.unusedRangeSizeAvg);
    6211  json.WriteString("Max");
    6212  json.WriteNumber(stat.unusedRangeSizeMax);
    6213  json.EndObject();
    6214  }
    6215 
    6216  json.EndObject();
    6217 }
    6218 
    6219 #endif // #if VMA_STATS_STRING_ENABLED
    6220 
    6221 struct VmaSuballocationItemSizeLess
    6222 {
    6223  bool operator()(
    6224  const VmaSuballocationList::iterator lhs,
    6225  const VmaSuballocationList::iterator rhs) const
    6226  {
    6227  return lhs->size < rhs->size;
    6228  }
    6229  bool operator()(
    6230  const VmaSuballocationList::iterator lhs,
    6231  VkDeviceSize rhsSize) const
    6232  {
    6233  return lhs->size < rhsSize;
    6234  }
    6235 };
    6236 
    6237 
    6239 // class VmaBlockMetadata
    6240 
    6241 #if VMA_STATS_STRING_ENABLED
    6242 
    6243 void VmaBlockMetadata::PrintDetailedMap_Begin(class VmaJsonWriter& json,
    6244  VkDeviceSize unusedBytes,
    6245  size_t allocationCount,
    6246  size_t unusedRangeCount) const
    6247 {
    6248  json.BeginObject();
    6249 
    6250  json.WriteString("TotalBytes");
    6251  json.WriteNumber(GetSize());
    6252 
    6253  json.WriteString("UnusedBytes");
    6254  json.WriteNumber(unusedBytes);
    6255 
    6256  json.WriteString("Allocations");
    6257  json.WriteNumber((uint64_t)allocationCount);
    6258 
    6259  json.WriteString("UnusedRanges");
    6260  json.WriteNumber((uint64_t)unusedRangeCount);
    6261 
    6262  json.WriteString("Suballocations");
    6263  json.BeginArray();
    6264 }
    6265 
    6266 void VmaBlockMetadata::PrintDetailedMap_Allocation(class VmaJsonWriter& json,
    6267  VkDeviceSize offset,
    6268  VmaAllocation hAllocation) const
    6269 {
    6270  json.BeginObject(true);
    6271 
    6272  json.WriteString("Offset");
    6273  json.WriteNumber(offset);
    6274 
    6275  hAllocation->PrintParameters(json);
    6276 
    6277  json.EndObject();
    6278 }
    6279 
    6280 void VmaBlockMetadata::PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
    6281  VkDeviceSize offset,
    6282  VkDeviceSize size) const
    6283 {
    6284  json.BeginObject(true);
    6285 
    6286  json.WriteString("Offset");
    6287  json.WriteNumber(offset);
    6288 
    6289  json.WriteString("Type");
    6290  json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[VMA_SUBALLOCATION_TYPE_FREE]);
    6291 
    6292  json.WriteString("Size");
    6293  json.WriteNumber(size);
    6294 
    6295  json.EndObject();
    6296 }
    6297 
    6298 void VmaBlockMetadata::PrintDetailedMap_End(class VmaJsonWriter& json) const
    6299 {
    6300  json.EndArray();
    6301  json.EndObject();
    6302 }
    6303 
    6304 #endif // #if VMA_STATS_STRING_ENABLED
    6305 
    6307 // class VmaBlockMetadata_Generic
    6308 
    6309 VmaBlockMetadata_Generic::VmaBlockMetadata_Generic(VmaAllocator hAllocator) :
    6310  m_FreeCount(0),
    6311  m_SumFreeSize(0),
    6312  m_Suballocations(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    6313  m_FreeSuballocationsBySize(VmaStlAllocator<VmaSuballocationList::iterator>(hAllocator->GetAllocationCallbacks()))
    6314 {
    6315 }
    6316 
    6317 VmaBlockMetadata_Generic::~VmaBlockMetadata_Generic()
    6318 {
    6319 }
    6320 
    6321 void VmaBlockMetadata_Generic::Init(VkDeviceSize size)
    6322 {
    6323  VmaBlockMetadata::Init(size);
    6324  m_FreeCount = 1;
    6325  m_SumFreeSize = size;
    6326 
    6327  VmaSuballocation suballoc = {};
    6328  suballoc.offset = 0;
    6329  suballoc.size = size;
    6330  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6331  suballoc.hAllocation = VK_NULL_HANDLE;
    6332 
    6333  m_Suballocations.push_back(suballoc);
    6334  VmaSuballocationList::iterator suballocItem = m_Suballocations.end();
    6335  --suballocItem;
    6336  m_FreeSuballocationsBySize.push_back(suballocItem);
    6337 }
    6338 
    6339 bool VmaBlockMetadata_Generic::Validate() const
    6340 {
    6341  if(m_Suballocations.empty())
    6342  {
    6343  return false;
    6344  }
    6345 
    6346  // Expected offset of new suballocation as calculated from previous ones.
    6347  VkDeviceSize calculatedOffset = 0;
    6348  // Expected number of free suballocations as calculated from traversing their list.
    6349  uint32_t calculatedFreeCount = 0;
    6350  // Expected sum size of free suballocations as calculated from traversing their list.
    6351  VkDeviceSize calculatedSumFreeSize = 0;
    6352  // Expected number of free suballocations that should be registered in
    6353  // m_FreeSuballocationsBySize calculated from traversing their list.
    6354  size_t freeSuballocationsToRegister = 0;
    6355  // True if previous visited suballocation was free.
    6356  bool prevFree = false;
    6357 
    6358  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6359  suballocItem != m_Suballocations.cend();
    6360  ++suballocItem)
    6361  {
    6362  const VmaSuballocation& subAlloc = *suballocItem;
    6363 
    6364  // Actual offset of this suballocation doesn't match expected one.
    6365  if(subAlloc.offset != calculatedOffset)
    6366  {
    6367  return false;
    6368  }
    6369 
    6370  const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE);
    6371  // Two adjacent free suballocations are invalid. They should be merged.
    6372  if(prevFree && currFree)
    6373  {
    6374  return false;
    6375  }
    6376 
    6377  if(currFree != (subAlloc.hAllocation == VK_NULL_HANDLE))
    6378  {
    6379  return false;
    6380  }
    6381 
    6382  if(currFree)
    6383  {
    6384  calculatedSumFreeSize += subAlloc.size;
    6385  ++calculatedFreeCount;
    6386  if(subAlloc.size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    6387  {
    6388  ++freeSuballocationsToRegister;
    6389  }
    6390 
    6391  // Margin required between allocations - every free space must be at least that large.
    6392  if(subAlloc.size < VMA_DEBUG_MARGIN)
    6393  {
    6394  return false;
    6395  }
    6396  }
    6397  else
    6398  {
    6399  if(subAlloc.hAllocation->GetOffset() != subAlloc.offset)
    6400  {
    6401  return false;
    6402  }
    6403  if(subAlloc.hAllocation->GetSize() != subAlloc.size)
    6404  {
    6405  return false;
    6406  }
    6407 
    6408  // Margin required between allocations - previous allocation must be free.
    6409  if(VMA_DEBUG_MARGIN > 0 && !prevFree)
    6410  {
    6411  return false;
    6412  }
    6413  }
    6414 
    6415  calculatedOffset += subAlloc.size;
    6416  prevFree = currFree;
    6417  }
    6418 
    6419  // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
    6420  // match expected one.
    6421  if(m_FreeSuballocationsBySize.size() != freeSuballocationsToRegister)
    6422  {
    6423  return false;
    6424  }
    6425 
    6426  VkDeviceSize lastSize = 0;
    6427  for(size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
    6428  {
    6429  VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
    6430 
    6431  // Only free suballocations can be registered in m_FreeSuballocationsBySize.
    6432  if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE)
    6433  {
    6434  return false;
    6435  }
    6436  // They must be sorted by size ascending.
    6437  if(suballocItem->size < lastSize)
    6438  {
    6439  return false;
    6440  }
    6441 
    6442  lastSize = suballocItem->size;
    6443  }
    6444 
    6445  // Check if totals match calculacted values.
    6446  if(!ValidateFreeSuballocationList() ||
    6447  (calculatedOffset != GetSize()) ||
    6448  (calculatedSumFreeSize != m_SumFreeSize) ||
    6449  (calculatedFreeCount != m_FreeCount))
    6450  {
    6451  return false;
    6452  }
    6453 
    6454  return true;
    6455 }
    6456 
    6457 VkDeviceSize VmaBlockMetadata_Generic::GetUnusedRangeSizeMax() const
    6458 {
    6459  if(!m_FreeSuballocationsBySize.empty())
    6460  {
    6461  return m_FreeSuballocationsBySize.back()->size;
    6462  }
    6463  else
    6464  {
    6465  return 0;
    6466  }
    6467 }
    6468 
    6469 bool VmaBlockMetadata_Generic::IsEmpty() const
    6470 {
    6471  return (m_Suballocations.size() == 1) && (m_FreeCount == 1);
    6472 }
    6473 
    6474 void VmaBlockMetadata_Generic::CalcAllocationStatInfo(VmaStatInfo& outInfo) const
    6475 {
    6476  outInfo.blockCount = 1;
    6477 
    6478  const uint32_t rangeCount = (uint32_t)m_Suballocations.size();
    6479  outInfo.allocationCount = rangeCount - m_FreeCount;
    6480  outInfo.unusedRangeCount = m_FreeCount;
    6481 
    6482  outInfo.unusedBytes = m_SumFreeSize;
    6483  outInfo.usedBytes = GetSize() - outInfo.unusedBytes;
    6484 
    6485  outInfo.allocationSizeMin = UINT64_MAX;
    6486  outInfo.allocationSizeMax = 0;
    6487  outInfo.unusedRangeSizeMin = UINT64_MAX;
    6488  outInfo.unusedRangeSizeMax = 0;
    6489 
    6490  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6491  suballocItem != m_Suballocations.cend();
    6492  ++suballocItem)
    6493  {
    6494  const VmaSuballocation& suballoc = *suballocItem;
    6495  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    6496  {
    6497  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    6498  outInfo.allocationSizeMax = VMA_MAX(outInfo.allocationSizeMax, suballoc.size);
    6499  }
    6500  else
    6501  {
    6502  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, suballoc.size);
    6503  outInfo.unusedRangeSizeMax = VMA_MAX(outInfo.unusedRangeSizeMax, suballoc.size);
    6504  }
    6505  }
    6506 }
    6507 
    6508 void VmaBlockMetadata_Generic::AddPoolStats(VmaPoolStats& inoutStats) const
    6509 {
    6510  const uint32_t rangeCount = (uint32_t)m_Suballocations.size();
    6511 
    6512  inoutStats.size += GetSize();
    6513  inoutStats.unusedSize += m_SumFreeSize;
    6514  inoutStats.allocationCount += rangeCount - m_FreeCount;
    6515  inoutStats.unusedRangeCount += m_FreeCount;
    6516  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, GetUnusedRangeSizeMax());
    6517 }
    6518 
    6519 #if VMA_STATS_STRING_ENABLED
    6520 
    6521 void VmaBlockMetadata_Generic::PrintDetailedMap(class VmaJsonWriter& json) const
    6522 {
    6523  PrintDetailedMap_Begin(json,
    6524  m_SumFreeSize, // unusedBytes
    6525  m_Suballocations.size() - (size_t)m_FreeCount, // allocationCount
    6526  m_FreeCount); // unusedRangeCount
    6527 
    6528  size_t i = 0;
    6529  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
    6530  suballocItem != m_Suballocations.cend();
    6531  ++suballocItem, ++i)
    6532  {
    6533  if(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    6534  {
    6535  PrintDetailedMap_UnusedRange(json, suballocItem->offset, suballocItem->size);
    6536  }
    6537  else
    6538  {
    6539  PrintDetailedMap_Allocation(json, suballocItem->offset, suballocItem->hAllocation);
    6540  }
    6541  }
    6542 
    6543  PrintDetailedMap_End(json);
    6544 }
    6545 
    6546 #endif // #if VMA_STATS_STRING_ENABLED
    6547 
    6548 /*
    6549 How many suitable free suballocations to analyze before choosing best one.
    6550 - Set to 1 to use First-Fit algorithm - first suitable free suballocation will
    6551  be chosen.
    6552 - Set to UINT32_MAX to use Best-Fit/Worst-Fit algorithm - all suitable free
    6553  suballocations will be analized and best one will be chosen.
    6554 - Any other value is also acceptable.
    6555 */
    6556 //static const uint32_t MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK = 8;
    6557 
    6558 bool VmaBlockMetadata_Generic::CreateAllocationRequest(
    6559  uint32_t currentFrameIndex,
    6560  uint32_t frameInUseCount,
    6561  VkDeviceSize bufferImageGranularity,
    6562  VkDeviceSize allocSize,
    6563  VkDeviceSize allocAlignment,
    6564  bool upperAddress,
    6565  VmaSuballocationType allocType,
    6566  bool canMakeOtherLost,
    6567  VmaAllocationRequest* pAllocationRequest)
    6568 {
    6569  VMA_ASSERT(allocSize > 0);
    6570  VMA_ASSERT(!upperAddress);
    6571  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    6572  VMA_ASSERT(pAllocationRequest != VMA_NULL);
    6573  VMA_HEAVY_ASSERT(Validate());
    6574 
    6575  // There is not enough total free space in this block to fullfill the request: Early return.
    6576  if(canMakeOtherLost == false && m_SumFreeSize < allocSize + 2 * VMA_DEBUG_MARGIN)
    6577  {
    6578  return false;
    6579  }
    6580 
    6581  // New algorithm, efficiently searching freeSuballocationsBySize.
    6582  const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
    6583  if(freeSuballocCount > 0)
    6584  {
    6585  if(VMA_BEST_FIT)
    6586  {
    6587  // Find first free suballocation with size not less than allocSize + 2 * VMA_DEBUG_MARGIN.
    6588  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
    6589  m_FreeSuballocationsBySize.data(),
    6590  m_FreeSuballocationsBySize.data() + freeSuballocCount,
    6591  allocSize + 2 * VMA_DEBUG_MARGIN,
    6592  VmaSuballocationItemSizeLess());
    6593  size_t index = it - m_FreeSuballocationsBySize.data();
    6594  for(; index < freeSuballocCount; ++index)
    6595  {
    6596  if(CheckAllocation(
    6597  currentFrameIndex,
    6598  frameInUseCount,
    6599  bufferImageGranularity,
    6600  allocSize,
    6601  allocAlignment,
    6602  allocType,
    6603  m_FreeSuballocationsBySize[index],
    6604  false, // canMakeOtherLost
    6605  &pAllocationRequest->offset,
    6606  &pAllocationRequest->itemsToMakeLostCount,
    6607  &pAllocationRequest->sumFreeSize,
    6608  &pAllocationRequest->sumItemSize))
    6609  {
    6610  pAllocationRequest->item = m_FreeSuballocationsBySize[index];
    6611  return true;
    6612  }
    6613  }
    6614  }
    6615  else
    6616  {
    6617  // Search staring from biggest suballocations.
    6618  for(size_t index = freeSuballocCount; index--; )
    6619  {
    6620  if(CheckAllocation(
    6621  currentFrameIndex,
    6622  frameInUseCount,
    6623  bufferImageGranularity,
    6624  allocSize,
    6625  allocAlignment,
    6626  allocType,
    6627  m_FreeSuballocationsBySize[index],
    6628  false, // canMakeOtherLost
    6629  &pAllocationRequest->offset,
    6630  &pAllocationRequest->itemsToMakeLostCount,
    6631  &pAllocationRequest->sumFreeSize,
    6632  &pAllocationRequest->sumItemSize))
    6633  {
    6634  pAllocationRequest->item = m_FreeSuballocationsBySize[index];
    6635  return true;
    6636  }
    6637  }
    6638  }
    6639  }
    6640 
    6641  if(canMakeOtherLost)
    6642  {
    6643  // Brute-force algorithm. TODO: Come up with something better.
    6644 
    6645  pAllocationRequest->sumFreeSize = VK_WHOLE_SIZE;
    6646  pAllocationRequest->sumItemSize = VK_WHOLE_SIZE;
    6647 
    6648  VmaAllocationRequest tmpAllocRequest = {};
    6649  for(VmaSuballocationList::iterator suballocIt = m_Suballocations.begin();
    6650  suballocIt != m_Suballocations.end();
    6651  ++suballocIt)
    6652  {
    6653  if(suballocIt->type == VMA_SUBALLOCATION_TYPE_FREE ||
    6654  suballocIt->hAllocation->CanBecomeLost())
    6655  {
    6656  if(CheckAllocation(
    6657  currentFrameIndex,
    6658  frameInUseCount,
    6659  bufferImageGranularity,
    6660  allocSize,
    6661  allocAlignment,
    6662  allocType,
    6663  suballocIt,
    6664  canMakeOtherLost,
    6665  &tmpAllocRequest.offset,
    6666  &tmpAllocRequest.itemsToMakeLostCount,
    6667  &tmpAllocRequest.sumFreeSize,
    6668  &tmpAllocRequest.sumItemSize))
    6669  {
    6670  tmpAllocRequest.item = suballocIt;
    6671 
    6672  if(tmpAllocRequest.CalcCost() < pAllocationRequest->CalcCost())
    6673  {
    6674  *pAllocationRequest = tmpAllocRequest;
    6675  }
    6676  }
    6677  }
    6678  }
    6679 
    6680  if(pAllocationRequest->sumItemSize != VK_WHOLE_SIZE)
    6681  {
    6682  return true;
    6683  }
    6684  }
    6685 
    6686  return false;
    6687 }
    6688 
    6689 bool VmaBlockMetadata_Generic::MakeRequestedAllocationsLost(
    6690  uint32_t currentFrameIndex,
    6691  uint32_t frameInUseCount,
    6692  VmaAllocationRequest* pAllocationRequest)
    6693 {
    6694  while(pAllocationRequest->itemsToMakeLostCount > 0)
    6695  {
    6696  if(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE)
    6697  {
    6698  ++pAllocationRequest->item;
    6699  }
    6700  VMA_ASSERT(pAllocationRequest->item != m_Suballocations.end());
    6701  VMA_ASSERT(pAllocationRequest->item->hAllocation != VK_NULL_HANDLE);
    6702  VMA_ASSERT(pAllocationRequest->item->hAllocation->CanBecomeLost());
    6703  if(pAllocationRequest->item->hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    6704  {
    6705  pAllocationRequest->item = FreeSuballocation(pAllocationRequest->item);
    6706  --pAllocationRequest->itemsToMakeLostCount;
    6707  }
    6708  else
    6709  {
    6710  return false;
    6711  }
    6712  }
    6713 
    6714  VMA_HEAVY_ASSERT(Validate());
    6715  VMA_ASSERT(pAllocationRequest->item != m_Suballocations.end());
    6716  VMA_ASSERT(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE);
    6717 
    6718  return true;
    6719 }
    6720 
    6721 uint32_t VmaBlockMetadata_Generic::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    6722 {
    6723  uint32_t lostAllocationCount = 0;
    6724  for(VmaSuballocationList::iterator it = m_Suballocations.begin();
    6725  it != m_Suballocations.end();
    6726  ++it)
    6727  {
    6728  if(it->type != VMA_SUBALLOCATION_TYPE_FREE &&
    6729  it->hAllocation->CanBecomeLost() &&
    6730  it->hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    6731  {
    6732  it = FreeSuballocation(it);
    6733  ++lostAllocationCount;
    6734  }
    6735  }
    6736  return lostAllocationCount;
    6737 }
    6738 
    6739 VkResult VmaBlockMetadata_Generic::CheckCorruption(const void* pBlockData)
    6740 {
    6741  for(VmaSuballocationList::iterator it = m_Suballocations.begin();
    6742  it != m_Suballocations.end();
    6743  ++it)
    6744  {
    6745  if(it->type != VMA_SUBALLOCATION_TYPE_FREE)
    6746  {
    6747  if(!VmaValidateMagicValue(pBlockData, it->offset - VMA_DEBUG_MARGIN))
    6748  {
    6749  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    6750  return VK_ERROR_VALIDATION_FAILED_EXT;
    6751  }
    6752  if(!VmaValidateMagicValue(pBlockData, it->offset + it->size))
    6753  {
    6754  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    6755  return VK_ERROR_VALIDATION_FAILED_EXT;
    6756  }
    6757  }
    6758  }
    6759 
    6760  return VK_SUCCESS;
    6761 }
    6762 
    6763 void VmaBlockMetadata_Generic::Alloc(
    6764  const VmaAllocationRequest& request,
    6765  VmaSuballocationType type,
    6766  VkDeviceSize allocSize,
    6767  bool upperAddress,
    6768  VmaAllocation hAllocation)
    6769 {
    6770  VMA_ASSERT(!upperAddress);
    6771  VMA_ASSERT(request.item != m_Suballocations.end());
    6772  VmaSuballocation& suballoc = *request.item;
    6773  // Given suballocation is a free block.
    6774  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    6775  // Given offset is inside this suballocation.
    6776  VMA_ASSERT(request.offset >= suballoc.offset);
    6777  const VkDeviceSize paddingBegin = request.offset - suballoc.offset;
    6778  VMA_ASSERT(suballoc.size >= paddingBegin + allocSize);
    6779  const VkDeviceSize paddingEnd = suballoc.size - paddingBegin - allocSize;
    6780 
    6781  // Unregister this free suballocation from m_FreeSuballocationsBySize and update
    6782  // it to become used.
    6783  UnregisterFreeSuballocation(request.item);
    6784 
    6785  suballoc.offset = request.offset;
    6786  suballoc.size = allocSize;
    6787  suballoc.type = type;
    6788  suballoc.hAllocation = hAllocation;
    6789 
    6790  // If there are any free bytes remaining at the end, insert new free suballocation after current one.
    6791  if(paddingEnd)
    6792  {
    6793  VmaSuballocation paddingSuballoc = {};
    6794  paddingSuballoc.offset = request.offset + allocSize;
    6795  paddingSuballoc.size = paddingEnd;
    6796  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6797  VmaSuballocationList::iterator next = request.item;
    6798  ++next;
    6799  const VmaSuballocationList::iterator paddingEndItem =
    6800  m_Suballocations.insert(next, paddingSuballoc);
    6801  RegisterFreeSuballocation(paddingEndItem);
    6802  }
    6803 
    6804  // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
    6805  if(paddingBegin)
    6806  {
    6807  VmaSuballocation paddingSuballoc = {};
    6808  paddingSuballoc.offset = request.offset - paddingBegin;
    6809  paddingSuballoc.size = paddingBegin;
    6810  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    6811  const VmaSuballocationList::iterator paddingBeginItem =
    6812  m_Suballocations.insert(request.item, paddingSuballoc);
    6813  RegisterFreeSuballocation(paddingBeginItem);
    6814  }
    6815 
    6816  // Update totals.
    6817  m_FreeCount = m_FreeCount - 1;
    6818  if(paddingBegin > 0)
    6819  {
    6820  ++m_FreeCount;
    6821  }
    6822  if(paddingEnd > 0)
    6823  {
    6824  ++m_FreeCount;
    6825  }
    6826  m_SumFreeSize -= allocSize;
    6827 }
    6828 
    6829 void VmaBlockMetadata_Generic::Free(const VmaAllocation allocation)
    6830 {
    6831  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
    6832  suballocItem != m_Suballocations.end();
    6833  ++suballocItem)
    6834  {
    6835  VmaSuballocation& suballoc = *suballocItem;
    6836  if(suballoc.hAllocation == allocation)
    6837  {
    6838  FreeSuballocation(suballocItem);
    6839  VMA_HEAVY_ASSERT(Validate());
    6840  return;
    6841  }
    6842  }
    6843  VMA_ASSERT(0 && "Not found!");
    6844 }
    6845 
    6846 void VmaBlockMetadata_Generic::FreeAtOffset(VkDeviceSize offset)
    6847 {
    6848  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
    6849  suballocItem != m_Suballocations.end();
    6850  ++suballocItem)
    6851  {
    6852  VmaSuballocation& suballoc = *suballocItem;
    6853  if(suballoc.offset == offset)
    6854  {
    6855  FreeSuballocation(suballocItem);
    6856  return;
    6857  }
    6858  }
    6859  VMA_ASSERT(0 && "Not found!");
    6860 }
    6861 
    6862 bool VmaBlockMetadata_Generic::ValidateFreeSuballocationList() const
    6863 {
    6864  VkDeviceSize lastSize = 0;
    6865  for(size_t i = 0, count = m_FreeSuballocationsBySize.size(); i < count; ++i)
    6866  {
    6867  const VmaSuballocationList::iterator it = m_FreeSuballocationsBySize[i];
    6868 
    6869  if(it->type != VMA_SUBALLOCATION_TYPE_FREE)
    6870  {
    6871  VMA_ASSERT(0);
    6872  return false;
    6873  }
    6874  if(it->size < VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    6875  {
    6876  VMA_ASSERT(0);
    6877  return false;
    6878  }
    6879  if(it->size < lastSize)
    6880  {
    6881  VMA_ASSERT(0);
    6882  return false;
    6883  }
    6884 
    6885  lastSize = it->size;
    6886  }
    6887  return true;
    6888 }
    6889 
    6890 bool VmaBlockMetadata_Generic::CheckAllocation(
    6891  uint32_t currentFrameIndex,
    6892  uint32_t frameInUseCount,
    6893  VkDeviceSize bufferImageGranularity,
    6894  VkDeviceSize allocSize,
    6895  VkDeviceSize allocAlignment,
    6896  VmaSuballocationType allocType,
    6897  VmaSuballocationList::const_iterator suballocItem,
    6898  bool canMakeOtherLost,
    6899  VkDeviceSize* pOffset,
    6900  size_t* itemsToMakeLostCount,
    6901  VkDeviceSize* pSumFreeSize,
    6902  VkDeviceSize* pSumItemSize) const
    6903 {
    6904  VMA_ASSERT(allocSize > 0);
    6905  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    6906  VMA_ASSERT(suballocItem != m_Suballocations.cend());
    6907  VMA_ASSERT(pOffset != VMA_NULL);
    6908 
    6909  *itemsToMakeLostCount = 0;
    6910  *pSumFreeSize = 0;
    6911  *pSumItemSize = 0;
    6912 
    6913  if(canMakeOtherLost)
    6914  {
    6915  if(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    6916  {
    6917  *pSumFreeSize = suballocItem->size;
    6918  }
    6919  else
    6920  {
    6921  if(suballocItem->hAllocation->CanBecomeLost() &&
    6922  suballocItem->hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    6923  {
    6924  ++*itemsToMakeLostCount;
    6925  *pSumItemSize = suballocItem->size;
    6926  }
    6927  else
    6928  {
    6929  return false;
    6930  }
    6931  }
    6932 
    6933  // Remaining size is too small for this request: Early return.
    6934  if(GetSize() - suballocItem->offset < allocSize)
    6935  {
    6936  return false;
    6937  }
    6938 
    6939  // Start from offset equal to beginning of this suballocation.
    6940  *pOffset = suballocItem->offset;
    6941 
    6942  // Apply VMA_DEBUG_MARGIN at the beginning.
    6943  if(VMA_DEBUG_MARGIN > 0)
    6944  {
    6945  *pOffset += VMA_DEBUG_MARGIN;
    6946  }
    6947 
    6948  // Apply alignment.
    6949  *pOffset = VmaAlignUp(*pOffset, allocAlignment);
    6950 
    6951  // Check previous suballocations for BufferImageGranularity conflicts.
    6952  // Make bigger alignment if necessary.
    6953  if(bufferImageGranularity > 1)
    6954  {
    6955  bool bufferImageGranularityConflict = false;
    6956  VmaSuballocationList::const_iterator prevSuballocItem = suballocItem;
    6957  while(prevSuballocItem != m_Suballocations.cbegin())
    6958  {
    6959  --prevSuballocItem;
    6960  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
    6961  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
    6962  {
    6963  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    6964  {
    6965  bufferImageGranularityConflict = true;
    6966  break;
    6967  }
    6968  }
    6969  else
    6970  // Already on previous page.
    6971  break;
    6972  }
    6973  if(bufferImageGranularityConflict)
    6974  {
    6975  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
    6976  }
    6977  }
    6978 
    6979  // Now that we have final *pOffset, check if we are past suballocItem.
    6980  // If yes, return false - this function should be called for another suballocItem as starting point.
    6981  if(*pOffset >= suballocItem->offset + suballocItem->size)
    6982  {
    6983  return false;
    6984  }
    6985 
    6986  // Calculate padding at the beginning based on current offset.
    6987  const VkDeviceSize paddingBegin = *pOffset - suballocItem->offset;
    6988 
    6989  // Calculate required margin at the end.
    6990  const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN;
    6991 
    6992  const VkDeviceSize totalSize = paddingBegin + allocSize + requiredEndMargin;
    6993  // Another early return check.
    6994  if(suballocItem->offset + totalSize > GetSize())
    6995  {
    6996  return false;
    6997  }
    6998 
    6999  // Advance lastSuballocItem until desired size is reached.
    7000  // Update itemsToMakeLostCount.
    7001  VmaSuballocationList::const_iterator lastSuballocItem = suballocItem;
    7002  if(totalSize > suballocItem->size)
    7003  {
    7004  VkDeviceSize remainingSize = totalSize - suballocItem->size;
    7005  while(remainingSize > 0)
    7006  {
    7007  ++lastSuballocItem;
    7008  if(lastSuballocItem == m_Suballocations.cend())
    7009  {
    7010  return false;
    7011  }
    7012  if(lastSuballocItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    7013  {
    7014  *pSumFreeSize += lastSuballocItem->size;
    7015  }
    7016  else
    7017  {
    7018  VMA_ASSERT(lastSuballocItem->hAllocation != VK_NULL_HANDLE);
    7019  if(lastSuballocItem->hAllocation->CanBecomeLost() &&
    7020  lastSuballocItem->hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    7021  {
    7022  ++*itemsToMakeLostCount;
    7023  *pSumItemSize += lastSuballocItem->size;
    7024  }
    7025  else
    7026  {
    7027  return false;
    7028  }
    7029  }
    7030  remainingSize = (lastSuballocItem->size < remainingSize) ?
    7031  remainingSize - lastSuballocItem->size : 0;
    7032  }
    7033  }
    7034 
    7035  // Check next suballocations for BufferImageGranularity conflicts.
    7036  // If conflict exists, we must mark more allocations lost or fail.
    7037  if(bufferImageGranularity > 1)
    7038  {
    7039  VmaSuballocationList::const_iterator nextSuballocItem = lastSuballocItem;
    7040  ++nextSuballocItem;
    7041  while(nextSuballocItem != m_Suballocations.cend())
    7042  {
    7043  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
    7044  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    7045  {
    7046  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    7047  {
    7048  VMA_ASSERT(nextSuballoc.hAllocation != VK_NULL_HANDLE);
    7049  if(nextSuballoc.hAllocation->CanBecomeLost() &&
    7050  nextSuballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    7051  {
    7052  ++*itemsToMakeLostCount;
    7053  }
    7054  else
    7055  {
    7056  return false;
    7057  }
    7058  }
    7059  }
    7060  else
    7061  {
    7062  // Already on next page.
    7063  break;
    7064  }
    7065  ++nextSuballocItem;
    7066  }
    7067  }
    7068  }
    7069  else
    7070  {
    7071  const VmaSuballocation& suballoc = *suballocItem;
    7072  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7073 
    7074  *pSumFreeSize = suballoc.size;
    7075 
    7076  // Size of this suballocation is too small for this request: Early return.
    7077  if(suballoc.size < allocSize)
    7078  {
    7079  return false;
    7080  }
    7081 
    7082  // Start from offset equal to beginning of this suballocation.
    7083  *pOffset = suballoc.offset;
    7084 
    7085  // Apply VMA_DEBUG_MARGIN at the beginning.
    7086  if(VMA_DEBUG_MARGIN > 0)
    7087  {
    7088  *pOffset += VMA_DEBUG_MARGIN;
    7089  }
    7090 
    7091  // Apply alignment.
    7092  *pOffset = VmaAlignUp(*pOffset, allocAlignment);
    7093 
    7094  // Check previous suballocations for BufferImageGranularity conflicts.
    7095  // Make bigger alignment if necessary.
    7096  if(bufferImageGranularity > 1)
    7097  {
    7098  bool bufferImageGranularityConflict = false;
    7099  VmaSuballocationList::const_iterator prevSuballocItem = suballocItem;
    7100  while(prevSuballocItem != m_Suballocations.cbegin())
    7101  {
    7102  --prevSuballocItem;
    7103  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
    7104  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
    7105  {
    7106  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    7107  {
    7108  bufferImageGranularityConflict = true;
    7109  break;
    7110  }
    7111  }
    7112  else
    7113  // Already on previous page.
    7114  break;
    7115  }
    7116  if(bufferImageGranularityConflict)
    7117  {
    7118  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
    7119  }
    7120  }
    7121 
    7122  // Calculate padding at the beginning based on current offset.
    7123  const VkDeviceSize paddingBegin = *pOffset - suballoc.offset;
    7124 
    7125  // Calculate required margin at the end.
    7126  const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN;
    7127 
    7128  // Fail if requested size plus margin before and after is bigger than size of this suballocation.
    7129  if(paddingBegin + allocSize + requiredEndMargin > suballoc.size)
    7130  {
    7131  return false;
    7132  }
    7133 
    7134  // Check next suballocations for BufferImageGranularity conflicts.
    7135  // If conflict exists, allocation cannot be made here.
    7136  if(bufferImageGranularity > 1)
    7137  {
    7138  VmaSuballocationList::const_iterator nextSuballocItem = suballocItem;
    7139  ++nextSuballocItem;
    7140  while(nextSuballocItem != m_Suballocations.cend())
    7141  {
    7142  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
    7143  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    7144  {
    7145  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    7146  {
    7147  return false;
    7148  }
    7149  }
    7150  else
    7151  {
    7152  // Already on next page.
    7153  break;
    7154  }
    7155  ++nextSuballocItem;
    7156  }
    7157  }
    7158  }
    7159 
    7160  // All tests passed: Success. pOffset is already filled.
    7161  return true;
    7162 }
    7163 
    7164 void VmaBlockMetadata_Generic::MergeFreeWithNext(VmaSuballocationList::iterator item)
    7165 {
    7166  VMA_ASSERT(item != m_Suballocations.end());
    7167  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7168 
    7169  VmaSuballocationList::iterator nextItem = item;
    7170  ++nextItem;
    7171  VMA_ASSERT(nextItem != m_Suballocations.end());
    7172  VMA_ASSERT(nextItem->type == VMA_SUBALLOCATION_TYPE_FREE);
    7173 
    7174  item->size += nextItem->size;
    7175  --m_FreeCount;
    7176  m_Suballocations.erase(nextItem);
    7177 }
    7178 
    7179 VmaSuballocationList::iterator VmaBlockMetadata_Generic::FreeSuballocation(VmaSuballocationList::iterator suballocItem)
    7180 {
    7181  // Change this suballocation to be marked as free.
    7182  VmaSuballocation& suballoc = *suballocItem;
    7183  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    7184  suballoc.hAllocation = VK_NULL_HANDLE;
    7185 
    7186  // Update totals.
    7187  ++m_FreeCount;
    7188  m_SumFreeSize += suballoc.size;
    7189 
    7190  // Merge with previous and/or next suballocation if it's also free.
    7191  bool mergeWithNext = false;
    7192  bool mergeWithPrev = false;
    7193 
    7194  VmaSuballocationList::iterator nextItem = suballocItem;
    7195  ++nextItem;
    7196  if((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE))
    7197  {
    7198  mergeWithNext = true;
    7199  }
    7200 
    7201  VmaSuballocationList::iterator prevItem = suballocItem;
    7202  if(suballocItem != m_Suballocations.begin())
    7203  {
    7204  --prevItem;
    7205  if(prevItem->type == VMA_SUBALLOCATION_TYPE_FREE)
    7206  {
    7207  mergeWithPrev = true;
    7208  }
    7209  }
    7210 
    7211  if(mergeWithNext)
    7212  {
    7213  UnregisterFreeSuballocation(nextItem);
    7214  MergeFreeWithNext(suballocItem);
    7215  }
    7216 
    7217  if(mergeWithPrev)
    7218  {
    7219  UnregisterFreeSuballocation(prevItem);
    7220  MergeFreeWithNext(prevItem);
    7221  RegisterFreeSuballocation(prevItem);
    7222  return prevItem;
    7223  }
    7224  else
    7225  {
    7226  RegisterFreeSuballocation(suballocItem);
    7227  return suballocItem;
    7228  }
    7229 }
    7230 
    7231 void VmaBlockMetadata_Generic::RegisterFreeSuballocation(VmaSuballocationList::iterator item)
    7232 {
    7233  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7234  VMA_ASSERT(item->size > 0);
    7235 
    7236  // You may want to enable this validation at the beginning or at the end of
    7237  // this function, depending on what do you want to check.
    7238  VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7239 
    7240  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    7241  {
    7242  if(m_FreeSuballocationsBySize.empty())
    7243  {
    7244  m_FreeSuballocationsBySize.push_back(item);
    7245  }
    7246  else
    7247  {
    7248  VmaVectorInsertSorted<VmaSuballocationItemSizeLess>(m_FreeSuballocationsBySize, item);
    7249  }
    7250  }
    7251 
    7252  //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7253 }
    7254 
    7255 
    7256 void VmaBlockMetadata_Generic::UnregisterFreeSuballocation(VmaSuballocationList::iterator item)
    7257 {
    7258  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
    7259  VMA_ASSERT(item->size > 0);
    7260 
    7261  // You may want to enable this validation at the beginning or at the end of
    7262  // this function, depending on what do you want to check.
    7263  VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7264 
    7265  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
    7266  {
    7267  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
    7268  m_FreeSuballocationsBySize.data(),
    7269  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
    7270  item,
    7271  VmaSuballocationItemSizeLess());
    7272  for(size_t index = it - m_FreeSuballocationsBySize.data();
    7273  index < m_FreeSuballocationsBySize.size();
    7274  ++index)
    7275  {
    7276  if(m_FreeSuballocationsBySize[index] == item)
    7277  {
    7278  VmaVectorRemove(m_FreeSuballocationsBySize, index);
    7279  return;
    7280  }
    7281  VMA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
    7282  }
    7283  VMA_ASSERT(0 && "Not found.");
    7284  }
    7285 
    7286  //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
    7287 }
    7288 
    7290 // class VmaBlockMetadata_Linear
    7291 
    7292 VmaBlockMetadata_Linear::VmaBlockMetadata_Linear(VmaAllocator hAllocator) :
    7293  m_SumFreeSize(0),
    7294  m_Suballocations0(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    7295  m_Suballocations1(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
    7296  m_1stVectorIndex(0),
    7297  m_2ndVectorMode(SECOND_VECTOR_EMPTY),
    7298  m_1stNullItemsBeginCount(0),
    7299  m_1stNullItemsMiddleCount(0),
    7300  m_2ndNullItemsCount(0)
    7301 {
    7302 }
    7303 
    7304 VmaBlockMetadata_Linear::~VmaBlockMetadata_Linear()
    7305 {
    7306 }
    7307 
    7308 void VmaBlockMetadata_Linear::Init(VkDeviceSize size)
    7309 {
    7310  VmaBlockMetadata::Init(size);
    7311  m_SumFreeSize = size;
    7312 }
    7313 
    7314 bool VmaBlockMetadata_Linear::Validate() const
    7315 {
    7316  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7317  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7318 
    7319  if(suballocations2nd.empty() != (m_2ndVectorMode == SECOND_VECTOR_EMPTY))
    7320  {
    7321  return false;
    7322  }
    7323  if(suballocations1st.empty() && !suballocations2nd.empty() &&
    7324  m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7325  {
    7326  return false;
    7327  }
    7328  if(!suballocations1st.empty())
    7329  {
    7330  // Null item at the beginning should be accounted into m_1stNullItemsBeginCount.
    7331  if(suballocations1st[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    7332  {
    7333  return false;
    7334  }
    7335  // Null item at the end should be just pop_back().
    7336  if(suballocations1st.back().hAllocation == VK_NULL_HANDLE)
    7337  {
    7338  return false;
    7339  }
    7340  }
    7341  if(!suballocations2nd.empty())
    7342  {
    7343  // Null item at the end should be just pop_back().
    7344  if(suballocations2nd.back().hAllocation == VK_NULL_HANDLE)
    7345  {
    7346  return false;
    7347  }
    7348  }
    7349 
    7350  if(m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount > suballocations1st.size())
    7351  {
    7352  return false;
    7353  }
    7354  if(m_2ndNullItemsCount > suballocations2nd.size())
    7355  {
    7356  return false;
    7357  }
    7358 
    7359  VkDeviceSize sumUsedSize = 0;
    7360  const size_t suballoc1stCount = suballocations1st.size();
    7361  VkDeviceSize offset = VMA_DEBUG_MARGIN;
    7362 
    7363  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7364  {
    7365  const size_t suballoc2ndCount = suballocations2nd.size();
    7366  size_t nullItem2ndCount = 0;
    7367  for(size_t i = 0; i < suballoc2ndCount; ++i)
    7368  {
    7369  const VmaSuballocation& suballoc = suballocations2nd[i];
    7370  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7371 
    7372  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7373  {
    7374  return false;
    7375  }
    7376  if(suballoc.offset < offset)
    7377  {
    7378  return false;
    7379  }
    7380 
    7381  if(!currFree)
    7382  {
    7383  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7384  {
    7385  return false;
    7386  }
    7387  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7388  {
    7389  return false;
    7390  }
    7391  sumUsedSize += suballoc.size;
    7392  }
    7393  else
    7394  {
    7395  ++nullItem2ndCount;
    7396  }
    7397 
    7398  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7399  }
    7400 
    7401  if(nullItem2ndCount != m_2ndNullItemsCount)
    7402  {
    7403  return false;
    7404  }
    7405  }
    7406 
    7407  for(size_t i = 0; i < m_1stNullItemsBeginCount; ++i)
    7408  {
    7409  const VmaSuballocation& suballoc = suballocations1st[i];
    7410  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE ||
    7411  suballoc.hAllocation != VK_NULL_HANDLE)
    7412  {
    7413  return false;
    7414  }
    7415  }
    7416 
    7417  size_t nullItem1stCount = m_1stNullItemsBeginCount;
    7418 
    7419  for(size_t i = m_1stNullItemsBeginCount; i < suballoc1stCount; ++i)
    7420  {
    7421  const VmaSuballocation& suballoc = suballocations1st[i];
    7422  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7423 
    7424  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7425  {
    7426  return false;
    7427  }
    7428  if(suballoc.offset < offset)
    7429  {
    7430  return false;
    7431  }
    7432  if(i < m_1stNullItemsBeginCount && !currFree)
    7433  {
    7434  return false;
    7435  }
    7436 
    7437  if(!currFree)
    7438  {
    7439  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7440  {
    7441  return false;
    7442  }
    7443  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7444  {
    7445  return false;
    7446  }
    7447  sumUsedSize += suballoc.size;
    7448  }
    7449  else
    7450  {
    7451  ++nullItem1stCount;
    7452  }
    7453 
    7454  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7455  }
    7456  if(nullItem1stCount != m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount)
    7457  {
    7458  return false;
    7459  }
    7460 
    7461  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7462  {
    7463  const size_t suballoc2ndCount = suballocations2nd.size();
    7464  size_t nullItem2ndCount = 0;
    7465  for(size_t i = suballoc2ndCount; i--; )
    7466  {
    7467  const VmaSuballocation& suballoc = suballocations2nd[i];
    7468  const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
    7469 
    7470  if(currFree != (suballoc.hAllocation == VK_NULL_HANDLE))
    7471  {
    7472  return false;
    7473  }
    7474  if(suballoc.offset < offset)
    7475  {
    7476  return false;
    7477  }
    7478 
    7479  if(!currFree)
    7480  {
    7481  if(suballoc.hAllocation->GetOffset() != suballoc.offset)
    7482  {
    7483  return false;
    7484  }
    7485  if(suballoc.hAllocation->GetSize() != suballoc.size)
    7486  {
    7487  return false;
    7488  }
    7489  sumUsedSize += suballoc.size;
    7490  }
    7491  else
    7492  {
    7493  ++nullItem2ndCount;
    7494  }
    7495 
    7496  offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN;
    7497  }
    7498 
    7499  if(nullItem2ndCount != m_2ndNullItemsCount)
    7500  {
    7501  return false;
    7502  }
    7503  }
    7504 
    7505  if(offset > GetSize())
    7506  {
    7507  return false;
    7508  }
    7509  if(m_SumFreeSize != GetSize() - sumUsedSize)
    7510  {
    7511  return false;
    7512  }
    7513 
    7514  return true;
    7515 }
    7516 
    7517 size_t VmaBlockMetadata_Linear::GetAllocationCount() const
    7518 {
    7519  return AccessSuballocations1st().size() - (m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount) +
    7520  AccessSuballocations2nd().size() - m_2ndNullItemsCount;
    7521 }
    7522 
    7523 VkDeviceSize VmaBlockMetadata_Linear::GetUnusedRangeSizeMax() const
    7524 {
    7525  const VkDeviceSize size = GetSize();
    7526 
    7527  /*
    7528  We don't consider gaps inside allocation vectors with freed allocations because
    7529  they are not suitable for reuse in linear allocator. We consider only space that
    7530  is available for new allocations.
    7531  */
    7532  if(IsEmpty())
    7533  {
    7534  return size;
    7535  }
    7536 
    7537  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7538 
    7539  switch(m_2ndVectorMode)
    7540  {
    7541  case SECOND_VECTOR_EMPTY:
    7542  /*
    7543  Available space is after end of 1st, as well as before beginning of 1st (which
    7544  whould make it a ring buffer).
    7545  */
    7546  {
    7547  const size_t suballocations1stCount = suballocations1st.size();
    7548  VMA_ASSERT(suballocations1stCount > m_1stNullItemsBeginCount);
    7549  const VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
    7550  const VmaSuballocation& lastSuballoc = suballocations1st[suballocations1stCount - 1];
    7551  return VMA_MAX(
    7552  firstSuballoc.offset,
    7553  size - (lastSuballoc.offset + lastSuballoc.size));
    7554  }
    7555  break;
    7556 
    7557  case SECOND_VECTOR_RING_BUFFER:
    7558  /*
    7559  Available space is only between end of 2nd and beginning of 1st.
    7560  */
    7561  {
    7562  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7563  const VmaSuballocation& lastSuballoc2nd = suballocations2nd.back();
    7564  const VmaSuballocation& firstSuballoc1st = suballocations1st[m_1stNullItemsBeginCount];
    7565  return firstSuballoc1st.offset - (lastSuballoc2nd.offset + lastSuballoc2nd.size);
    7566  }
    7567  break;
    7568 
    7569  case SECOND_VECTOR_DOUBLE_STACK:
    7570  /*
    7571  Available space is only between end of 1st and top of 2nd.
    7572  */
    7573  {
    7574  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7575  const VmaSuballocation& topSuballoc2nd = suballocations2nd.back();
    7576  const VmaSuballocation& lastSuballoc1st = suballocations1st.back();
    7577  return topSuballoc2nd.offset - (lastSuballoc1st.offset + lastSuballoc1st.size);
    7578  }
    7579  break;
    7580 
    7581  default:
    7582  VMA_ASSERT(0);
    7583  return 0;
    7584  }
    7585 }
    7586 
    7587 void VmaBlockMetadata_Linear::CalcAllocationStatInfo(VmaStatInfo& outInfo) const
    7588 {
    7589  const VkDeviceSize size = GetSize();
    7590  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7591  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7592  const size_t suballoc1stCount = suballocations1st.size();
    7593  const size_t suballoc2ndCount = suballocations2nd.size();
    7594 
    7595  outInfo.blockCount = 1;
    7596  outInfo.allocationCount = (uint32_t)GetAllocationCount();
    7597  outInfo.unusedRangeCount = 0;
    7598  outInfo.usedBytes = 0;
    7599  outInfo.allocationSizeMin = UINT64_MAX;
    7600  outInfo.allocationSizeMax = 0;
    7601  outInfo.unusedRangeSizeMin = UINT64_MAX;
    7602  outInfo.unusedRangeSizeMax = 0;
    7603 
    7604  VkDeviceSize lastOffset = 0;
    7605 
    7606  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7607  {
    7608  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7609  size_t nextAlloc2ndIndex = 0;
    7610  while(lastOffset < freeSpace2ndTo1stEnd)
    7611  {
    7612  // Find next non-null allocation or move nextAllocIndex to the end.
    7613  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7614  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7615  {
    7616  ++nextAlloc2ndIndex;
    7617  }
    7618 
    7619  // Found non-null allocation.
    7620  if(nextAlloc2ndIndex < suballoc2ndCount)
    7621  {
    7622  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7623 
    7624  // 1. Process free space before this allocation.
    7625  if(lastOffset < suballoc.offset)
    7626  {
    7627  // There is free space from lastOffset to suballoc.offset.
    7628  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7629  ++outInfo.unusedRangeCount;
    7630  outInfo.unusedBytes += unusedRangeSize;
    7631  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7632  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7633  }
    7634 
    7635  // 2. Process this allocation.
    7636  // There is allocation with suballoc.offset, suballoc.size.
    7637  outInfo.usedBytes += suballoc.size;
    7638  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7639  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7640 
    7641  // 3. Prepare for next iteration.
    7642  lastOffset = suballoc.offset + suballoc.size;
    7643  ++nextAlloc2ndIndex;
    7644  }
    7645  // We are at the end.
    7646  else
    7647  {
    7648  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    7649  if(lastOffset < freeSpace2ndTo1stEnd)
    7650  {
    7651  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    7652  ++outInfo.unusedRangeCount;
    7653  outInfo.unusedBytes += unusedRangeSize;
    7654  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7655  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7656  }
    7657 
    7658  // End of loop.
    7659  lastOffset = freeSpace2ndTo1stEnd;
    7660  }
    7661  }
    7662  }
    7663 
    7664  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    7665  const VkDeviceSize freeSpace1stTo2ndEnd =
    7666  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    7667  while(lastOffset < freeSpace1stTo2ndEnd)
    7668  {
    7669  // Find next non-null allocation or move nextAllocIndex to the end.
    7670  while(nextAlloc1stIndex < suballoc1stCount &&
    7671  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    7672  {
    7673  ++nextAlloc1stIndex;
    7674  }
    7675 
    7676  // Found non-null allocation.
    7677  if(nextAlloc1stIndex < suballoc1stCount)
    7678  {
    7679  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    7680 
    7681  // 1. Process free space before this allocation.
    7682  if(lastOffset < suballoc.offset)
    7683  {
    7684  // There is free space from lastOffset to suballoc.offset.
    7685  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7686  ++outInfo.unusedRangeCount;
    7687  outInfo.unusedBytes += unusedRangeSize;
    7688  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7689  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7690  }
    7691 
    7692  // 2. Process this allocation.
    7693  // There is allocation with suballoc.offset, suballoc.size.
    7694  outInfo.usedBytes += suballoc.size;
    7695  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7696  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7697 
    7698  // 3. Prepare for next iteration.
    7699  lastOffset = suballoc.offset + suballoc.size;
    7700  ++nextAlloc1stIndex;
    7701  }
    7702  // We are at the end.
    7703  else
    7704  {
    7705  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    7706  if(lastOffset < freeSpace1stTo2ndEnd)
    7707  {
    7708  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    7709  ++outInfo.unusedRangeCount;
    7710  outInfo.unusedBytes += unusedRangeSize;
    7711  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7712  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7713  }
    7714 
    7715  // End of loop.
    7716  lastOffset = freeSpace1stTo2ndEnd;
    7717  }
    7718  }
    7719 
    7720  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7721  {
    7722  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    7723  while(lastOffset < size)
    7724  {
    7725  // Find next non-null allocation or move nextAllocIndex to the end.
    7726  while(nextAlloc2ndIndex != SIZE_MAX &&
    7727  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7728  {
    7729  --nextAlloc2ndIndex;
    7730  }
    7731 
    7732  // Found non-null allocation.
    7733  if(nextAlloc2ndIndex != SIZE_MAX)
    7734  {
    7735  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7736 
    7737  // 1. Process free space before this allocation.
    7738  if(lastOffset < suballoc.offset)
    7739  {
    7740  // There is free space from lastOffset to suballoc.offset.
    7741  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7742  ++outInfo.unusedRangeCount;
    7743  outInfo.unusedBytes += unusedRangeSize;
    7744  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7745  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7746  }
    7747 
    7748  // 2. Process this allocation.
    7749  // There is allocation with suballoc.offset, suballoc.size.
    7750  outInfo.usedBytes += suballoc.size;
    7751  outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size);
    7752  outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size);
    7753 
    7754  // 3. Prepare for next iteration.
    7755  lastOffset = suballoc.offset + suballoc.size;
    7756  --nextAlloc2ndIndex;
    7757  }
    7758  // We are at the end.
    7759  else
    7760  {
    7761  // There is free space from lastOffset to size.
    7762  if(lastOffset < size)
    7763  {
    7764  const VkDeviceSize unusedRangeSize = size - lastOffset;
    7765  ++outInfo.unusedRangeCount;
    7766  outInfo.unusedBytes += unusedRangeSize;
    7767  outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize);
    7768  outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize);
    7769  }
    7770 
    7771  // End of loop.
    7772  lastOffset = size;
    7773  }
    7774  }
    7775  }
    7776 
    7777  outInfo.unusedBytes = size - outInfo.usedBytes;
    7778 }
    7779 
    7780 void VmaBlockMetadata_Linear::AddPoolStats(VmaPoolStats& inoutStats) const
    7781 {
    7782  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7783  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7784  const VkDeviceSize size = GetSize();
    7785  const size_t suballoc1stCount = suballocations1st.size();
    7786  const size_t suballoc2ndCount = suballocations2nd.size();
    7787 
    7788  inoutStats.size += size;
    7789 
    7790  VkDeviceSize lastOffset = 0;
    7791 
    7792  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7793  {
    7794  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7795  size_t nextAlloc2ndIndex = m_1stNullItemsBeginCount;
    7796  while(lastOffset < freeSpace2ndTo1stEnd)
    7797  {
    7798  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7799  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7800  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7801  {
    7802  ++nextAlloc2ndIndex;
    7803  }
    7804 
    7805  // Found non-null allocation.
    7806  if(nextAlloc2ndIndex < suballoc2ndCount)
    7807  {
    7808  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7809 
    7810  // 1. Process free space before this allocation.
    7811  if(lastOffset < suballoc.offset)
    7812  {
    7813  // There is free space from lastOffset to suballoc.offset.
    7814  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7815  inoutStats.unusedSize += unusedRangeSize;
    7816  ++inoutStats.unusedRangeCount;
    7817  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7818  }
    7819 
    7820  // 2. Process this allocation.
    7821  // There is allocation with suballoc.offset, suballoc.size.
    7822  ++inoutStats.allocationCount;
    7823 
    7824  // 3. Prepare for next iteration.
    7825  lastOffset = suballoc.offset + suballoc.size;
    7826  ++nextAlloc2ndIndex;
    7827  }
    7828  // We are at the end.
    7829  else
    7830  {
    7831  if(lastOffset < freeSpace2ndTo1stEnd)
    7832  {
    7833  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    7834  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    7835  inoutStats.unusedSize += unusedRangeSize;
    7836  ++inoutStats.unusedRangeCount;
    7837  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7838  }
    7839 
    7840  // End of loop.
    7841  lastOffset = freeSpace2ndTo1stEnd;
    7842  }
    7843  }
    7844  }
    7845 
    7846  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    7847  const VkDeviceSize freeSpace1stTo2ndEnd =
    7848  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    7849  while(lastOffset < freeSpace1stTo2ndEnd)
    7850  {
    7851  // Find next non-null allocation or move nextAllocIndex to the end.
    7852  while(nextAlloc1stIndex < suballoc1stCount &&
    7853  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    7854  {
    7855  ++nextAlloc1stIndex;
    7856  }
    7857 
    7858  // Found non-null allocation.
    7859  if(nextAlloc1stIndex < suballoc1stCount)
    7860  {
    7861  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    7862 
    7863  // 1. Process free space before this allocation.
    7864  if(lastOffset < suballoc.offset)
    7865  {
    7866  // There is free space from lastOffset to suballoc.offset.
    7867  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7868  inoutStats.unusedSize += unusedRangeSize;
    7869  ++inoutStats.unusedRangeCount;
    7870  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7871  }
    7872 
    7873  // 2. Process this allocation.
    7874  // There is allocation with suballoc.offset, suballoc.size.
    7875  ++inoutStats.allocationCount;
    7876 
    7877  // 3. Prepare for next iteration.
    7878  lastOffset = suballoc.offset + suballoc.size;
    7879  ++nextAlloc1stIndex;
    7880  }
    7881  // We are at the end.
    7882  else
    7883  {
    7884  if(lastOffset < freeSpace1stTo2ndEnd)
    7885  {
    7886  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    7887  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    7888  inoutStats.unusedSize += unusedRangeSize;
    7889  ++inoutStats.unusedRangeCount;
    7890  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7891  }
    7892 
    7893  // End of loop.
    7894  lastOffset = freeSpace1stTo2ndEnd;
    7895  }
    7896  }
    7897 
    7898  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    7899  {
    7900  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    7901  while(lastOffset < size)
    7902  {
    7903  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7904  while(nextAlloc2ndIndex != SIZE_MAX &&
    7905  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7906  {
    7907  --nextAlloc2ndIndex;
    7908  }
    7909 
    7910  // Found non-null allocation.
    7911  if(nextAlloc2ndIndex != SIZE_MAX)
    7912  {
    7913  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7914 
    7915  // 1. Process free space before this allocation.
    7916  if(lastOffset < suballoc.offset)
    7917  {
    7918  // There is free space from lastOffset to suballoc.offset.
    7919  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    7920  inoutStats.unusedSize += unusedRangeSize;
    7921  ++inoutStats.unusedRangeCount;
    7922  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7923  }
    7924 
    7925  // 2. Process this allocation.
    7926  // There is allocation with suballoc.offset, suballoc.size.
    7927  ++inoutStats.allocationCount;
    7928 
    7929  // 3. Prepare for next iteration.
    7930  lastOffset = suballoc.offset + suballoc.size;
    7931  --nextAlloc2ndIndex;
    7932  }
    7933  // We are at the end.
    7934  else
    7935  {
    7936  if(lastOffset < size)
    7937  {
    7938  // There is free space from lastOffset to size.
    7939  const VkDeviceSize unusedRangeSize = size - lastOffset;
    7940  inoutStats.unusedSize += unusedRangeSize;
    7941  ++inoutStats.unusedRangeCount;
    7942  inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize);
    7943  }
    7944 
    7945  // End of loop.
    7946  lastOffset = size;
    7947  }
    7948  }
    7949  }
    7950 }
    7951 
    7952 #if VMA_STATS_STRING_ENABLED
    7953 void VmaBlockMetadata_Linear::PrintDetailedMap(class VmaJsonWriter& json) const
    7954 {
    7955  const VkDeviceSize size = GetSize();
    7956  const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    7957  const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    7958  const size_t suballoc1stCount = suballocations1st.size();
    7959  const size_t suballoc2ndCount = suballocations2nd.size();
    7960 
    7961  // FIRST PASS
    7962 
    7963  size_t unusedRangeCount = 0;
    7964  VkDeviceSize usedBytes = 0;
    7965 
    7966  VkDeviceSize lastOffset = 0;
    7967 
    7968  size_t alloc2ndCount = 0;
    7969  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    7970  {
    7971  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    7972  size_t nextAlloc2ndIndex = 0;
    7973  while(lastOffset < freeSpace2ndTo1stEnd)
    7974  {
    7975  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    7976  while(nextAlloc2ndIndex < suballoc2ndCount &&
    7977  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    7978  {
    7979  ++nextAlloc2ndIndex;
    7980  }
    7981 
    7982  // Found non-null allocation.
    7983  if(nextAlloc2ndIndex < suballoc2ndCount)
    7984  {
    7985  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    7986 
    7987  // 1. Process free space before this allocation.
    7988  if(lastOffset < suballoc.offset)
    7989  {
    7990  // There is free space from lastOffset to suballoc.offset.
    7991  ++unusedRangeCount;
    7992  }
    7993 
    7994  // 2. Process this allocation.
    7995  // There is allocation with suballoc.offset, suballoc.size.
    7996  ++alloc2ndCount;
    7997  usedBytes += suballoc.size;
    7998 
    7999  // 3. Prepare for next iteration.
    8000  lastOffset = suballoc.offset + suballoc.size;
    8001  ++nextAlloc2ndIndex;
    8002  }
    8003  // We are at the end.
    8004  else
    8005  {
    8006  if(lastOffset < freeSpace2ndTo1stEnd)
    8007  {
    8008  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    8009  ++unusedRangeCount;
    8010  }
    8011 
    8012  // End of loop.
    8013  lastOffset = freeSpace2ndTo1stEnd;
    8014  }
    8015  }
    8016  }
    8017 
    8018  size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
    8019  size_t alloc1stCount = 0;
    8020  const VkDeviceSize freeSpace1stTo2ndEnd =
    8021  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
    8022  while(lastOffset < freeSpace1stTo2ndEnd)
    8023  {
    8024  // Find next non-null allocation or move nextAllocIndex to the end.
    8025  while(nextAlloc1stIndex < suballoc1stCount &&
    8026  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    8027  {
    8028  ++nextAlloc1stIndex;
    8029  }
    8030 
    8031  // Found non-null allocation.
    8032  if(nextAlloc1stIndex < suballoc1stCount)
    8033  {
    8034  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    8035 
    8036  // 1. Process free space before this allocation.
    8037  if(lastOffset < suballoc.offset)
    8038  {
    8039  // There is free space from lastOffset to suballoc.offset.
    8040  ++unusedRangeCount;
    8041  }
    8042 
    8043  // 2. Process this allocation.
    8044  // There is allocation with suballoc.offset, suballoc.size.
    8045  ++alloc1stCount;
    8046  usedBytes += suballoc.size;
    8047 
    8048  // 3. Prepare for next iteration.
    8049  lastOffset = suballoc.offset + suballoc.size;
    8050  ++nextAlloc1stIndex;
    8051  }
    8052  // We are at the end.
    8053  else
    8054  {
    8055  if(lastOffset < size)
    8056  {
    8057  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    8058  ++unusedRangeCount;
    8059  }
    8060 
    8061  // End of loop.
    8062  lastOffset = freeSpace1stTo2ndEnd;
    8063  }
    8064  }
    8065 
    8066  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8067  {
    8068  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    8069  while(lastOffset < size)
    8070  {
    8071  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8072  while(nextAlloc2ndIndex != SIZE_MAX &&
    8073  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8074  {
    8075  --nextAlloc2ndIndex;
    8076  }
    8077 
    8078  // Found non-null allocation.
    8079  if(nextAlloc2ndIndex != SIZE_MAX)
    8080  {
    8081  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8082 
    8083  // 1. Process free space before this allocation.
    8084  if(lastOffset < suballoc.offset)
    8085  {
    8086  // There is free space from lastOffset to suballoc.offset.
    8087  ++unusedRangeCount;
    8088  }
    8089 
    8090  // 2. Process this allocation.
    8091  // There is allocation with suballoc.offset, suballoc.size.
    8092  ++alloc2ndCount;
    8093  usedBytes += suballoc.size;
    8094 
    8095  // 3. Prepare for next iteration.
    8096  lastOffset = suballoc.offset + suballoc.size;
    8097  --nextAlloc2ndIndex;
    8098  }
    8099  // We are at the end.
    8100  else
    8101  {
    8102  if(lastOffset < size)
    8103  {
    8104  // There is free space from lastOffset to size.
    8105  ++unusedRangeCount;
    8106  }
    8107 
    8108  // End of loop.
    8109  lastOffset = size;
    8110  }
    8111  }
    8112  }
    8113 
    8114  const VkDeviceSize unusedBytes = size - usedBytes;
    8115  PrintDetailedMap_Begin(json, unusedBytes, alloc1stCount + alloc2ndCount, unusedRangeCount);
    8116 
    8117  // SECOND PASS
    8118  lastOffset = 0;
    8119 
    8120  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8121  {
    8122  const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
    8123  size_t nextAlloc2ndIndex = 0;
    8124  while(lastOffset < freeSpace2ndTo1stEnd)
    8125  {
    8126  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8127  while(nextAlloc2ndIndex < suballoc2ndCount &&
    8128  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8129  {
    8130  ++nextAlloc2ndIndex;
    8131  }
    8132 
    8133  // Found non-null allocation.
    8134  if(nextAlloc2ndIndex < suballoc2ndCount)
    8135  {
    8136  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8137 
    8138  // 1. Process free space before this allocation.
    8139  if(lastOffset < suballoc.offset)
    8140  {
    8141  // There is free space from lastOffset to suballoc.offset.
    8142  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8143  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8144  }
    8145 
    8146  // 2. Process this allocation.
    8147  // There is allocation with suballoc.offset, suballoc.size.
    8148  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8149 
    8150  // 3. Prepare for next iteration.
    8151  lastOffset = suballoc.offset + suballoc.size;
    8152  ++nextAlloc2ndIndex;
    8153  }
    8154  // We are at the end.
    8155  else
    8156  {
    8157  if(lastOffset < freeSpace2ndTo1stEnd)
    8158  {
    8159  // There is free space from lastOffset to freeSpace2ndTo1stEnd.
    8160  const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
    8161  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8162  }
    8163 
    8164  // End of loop.
    8165  lastOffset = freeSpace2ndTo1stEnd;
    8166  }
    8167  }
    8168  }
    8169 
    8170  nextAlloc1stIndex = m_1stNullItemsBeginCount;
    8171  while(lastOffset < freeSpace1stTo2ndEnd)
    8172  {
    8173  // Find next non-null allocation or move nextAllocIndex to the end.
    8174  while(nextAlloc1stIndex < suballoc1stCount &&
    8175  suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE)
    8176  {
    8177  ++nextAlloc1stIndex;
    8178  }
    8179 
    8180  // Found non-null allocation.
    8181  if(nextAlloc1stIndex < suballoc1stCount)
    8182  {
    8183  const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
    8184 
    8185  // 1. Process free space before this allocation.
    8186  if(lastOffset < suballoc.offset)
    8187  {
    8188  // There is free space from lastOffset to suballoc.offset.
    8189  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8190  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8191  }
    8192 
    8193  // 2. Process this allocation.
    8194  // There is allocation with suballoc.offset, suballoc.size.
    8195  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8196 
    8197  // 3. Prepare for next iteration.
    8198  lastOffset = suballoc.offset + suballoc.size;
    8199  ++nextAlloc1stIndex;
    8200  }
    8201  // We are at the end.
    8202  else
    8203  {
    8204  if(lastOffset < freeSpace1stTo2ndEnd)
    8205  {
    8206  // There is free space from lastOffset to freeSpace1stTo2ndEnd.
    8207  const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
    8208  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8209  }
    8210 
    8211  // End of loop.
    8212  lastOffset = freeSpace1stTo2ndEnd;
    8213  }
    8214  }
    8215 
    8216  if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8217  {
    8218  size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
    8219  while(lastOffset < size)
    8220  {
    8221  // Find next non-null allocation or move nextAlloc2ndIndex to the end.
    8222  while(nextAlloc2ndIndex != SIZE_MAX &&
    8223  suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE)
    8224  {
    8225  --nextAlloc2ndIndex;
    8226  }
    8227 
    8228  // Found non-null allocation.
    8229  if(nextAlloc2ndIndex != SIZE_MAX)
    8230  {
    8231  const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
    8232 
    8233  // 1. Process free space before this allocation.
    8234  if(lastOffset < suballoc.offset)
    8235  {
    8236  // There is free space from lastOffset to suballoc.offset.
    8237  const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
    8238  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8239  }
    8240 
    8241  // 2. Process this allocation.
    8242  // There is allocation with suballoc.offset, suballoc.size.
    8243  PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation);
    8244 
    8245  // 3. Prepare for next iteration.
    8246  lastOffset = suballoc.offset + suballoc.size;
    8247  --nextAlloc2ndIndex;
    8248  }
    8249  // We are at the end.
    8250  else
    8251  {
    8252  if(lastOffset < size)
    8253  {
    8254  // There is free space from lastOffset to size.
    8255  const VkDeviceSize unusedRangeSize = size - lastOffset;
    8256  PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
    8257  }
    8258 
    8259  // End of loop.
    8260  lastOffset = size;
    8261  }
    8262  }
    8263  }
    8264 
    8265  PrintDetailedMap_End(json);
    8266 }
    8267 #endif // #if VMA_STATS_STRING_ENABLED
    8268 
    8269 bool VmaBlockMetadata_Linear::CreateAllocationRequest(
    8270  uint32_t currentFrameIndex,
    8271  uint32_t frameInUseCount,
    8272  VkDeviceSize bufferImageGranularity,
    8273  VkDeviceSize allocSize,
    8274  VkDeviceSize allocAlignment,
    8275  bool upperAddress,
    8276  VmaSuballocationType allocType,
    8277  bool canMakeOtherLost,
    8278  VmaAllocationRequest* pAllocationRequest)
    8279 {
    8280  VMA_ASSERT(allocSize > 0);
    8281  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
    8282  VMA_ASSERT(pAllocationRequest != VMA_NULL);
    8283  VMA_HEAVY_ASSERT(Validate());
    8284 
    8285  const VkDeviceSize size = GetSize();
    8286  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8287  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8288 
    8289  if(upperAddress)
    8290  {
    8291  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8292  {
    8293  VMA_ASSERT(0 && "Trying to use pool with linear algorithm as double stack, while it is already being used as ring buffer.");
    8294  return false;
    8295  }
    8296 
    8297  // Try to allocate before 2nd.back(), or end of block if 2nd.empty().
    8298  if(allocSize > size)
    8299  {
    8300  return false;
    8301  }
    8302  VkDeviceSize resultBaseOffset = size - allocSize;
    8303  if(!suballocations2nd.empty())
    8304  {
    8305  const VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8306  resultBaseOffset = lastSuballoc.offset - allocSize;
    8307  if(allocSize > lastSuballoc.offset)
    8308  {
    8309  return false;
    8310  }
    8311  }
    8312 
    8313  // Start from offset equal to end of free space.
    8314  VkDeviceSize resultOffset = resultBaseOffset;
    8315 
    8316  // Apply VMA_DEBUG_MARGIN at the end.
    8317  if(VMA_DEBUG_MARGIN > 0)
    8318  {
    8319  if(resultOffset < VMA_DEBUG_MARGIN)
    8320  {
    8321  return false;
    8322  }
    8323  resultOffset -= VMA_DEBUG_MARGIN;
    8324  }
    8325 
    8326  // Apply alignment.
    8327  resultOffset = VmaAlignDown(resultOffset, allocAlignment);
    8328 
    8329  // Check next suballocations from 2nd for BufferImageGranularity conflicts.
    8330  // Make bigger alignment if necessary.
    8331  if(bufferImageGranularity > 1 && !suballocations2nd.empty())
    8332  {
    8333  bool bufferImageGranularityConflict = false;
    8334  for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
    8335  {
    8336  const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
    8337  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8338  {
    8339  if(VmaIsBufferImageGranularityConflict(nextSuballoc.type, allocType))
    8340  {
    8341  bufferImageGranularityConflict = true;
    8342  break;
    8343  }
    8344  }
    8345  else
    8346  // Already on previous page.
    8347  break;
    8348  }
    8349  if(bufferImageGranularityConflict)
    8350  {
    8351  resultOffset = VmaAlignDown(resultOffset, bufferImageGranularity);
    8352  }
    8353  }
    8354 
    8355  // There is enough free space.
    8356  const VkDeviceSize endOf1st = !suballocations1st.empty() ?
    8357  suballocations1st.back().offset + suballocations1st.back().size :
    8358  0;
    8359  if(endOf1st + VMA_DEBUG_MARGIN <= resultOffset)
    8360  {
    8361  // Check previous suballocations for BufferImageGranularity conflicts.
    8362  // If conflict exists, allocation cannot be made here.
    8363  if(bufferImageGranularity > 1)
    8364  {
    8365  for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
    8366  {
    8367  const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
    8368  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8369  {
    8370  if(VmaIsBufferImageGranularityConflict(allocType, prevSuballoc.type))
    8371  {
    8372  return false;
    8373  }
    8374  }
    8375  else
    8376  {
    8377  // Already on next page.
    8378  break;
    8379  }
    8380  }
    8381  }
    8382 
    8383  // All tests passed: Success.
    8384  pAllocationRequest->offset = resultOffset;
    8385  pAllocationRequest->sumFreeSize = resultBaseOffset + allocSize - endOf1st;
    8386  pAllocationRequest->sumItemSize = 0;
    8387  // pAllocationRequest->item unused.
    8388  pAllocationRequest->itemsToMakeLostCount = 0;
    8389  return true;
    8390  }
    8391  }
    8392  else // !upperAddress
    8393  {
    8394  if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8395  {
    8396  // Try to allocate at the end of 1st vector.
    8397 
    8398  VkDeviceSize resultBaseOffset = 0;
    8399  if(!suballocations1st.empty())
    8400  {
    8401  const VmaSuballocation& lastSuballoc = suballocations1st.back();
    8402  resultBaseOffset = lastSuballoc.offset + lastSuballoc.size;
    8403  }
    8404 
    8405  // Start from offset equal to beginning of free space.
    8406  VkDeviceSize resultOffset = resultBaseOffset;
    8407 
    8408  // Apply VMA_DEBUG_MARGIN at the beginning.
    8409  if(VMA_DEBUG_MARGIN > 0)
    8410  {
    8411  resultOffset += VMA_DEBUG_MARGIN;
    8412  }
    8413 
    8414  // Apply alignment.
    8415  resultOffset = VmaAlignUp(resultOffset, allocAlignment);
    8416 
    8417  // Check previous suballocations for BufferImageGranularity conflicts.
    8418  // Make bigger alignment if necessary.
    8419  if(bufferImageGranularity > 1 && !suballocations1st.empty())
    8420  {
    8421  bool bufferImageGranularityConflict = false;
    8422  for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
    8423  {
    8424  const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
    8425  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8426  {
    8427  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    8428  {
    8429  bufferImageGranularityConflict = true;
    8430  break;
    8431  }
    8432  }
    8433  else
    8434  // Already on previous page.
    8435  break;
    8436  }
    8437  if(bufferImageGranularityConflict)
    8438  {
    8439  resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
    8440  }
    8441  }
    8442 
    8443  const VkDeviceSize freeSpaceEnd = m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ?
    8444  suballocations2nd.back().offset : size;
    8445 
    8446  // There is enough free space at the end after alignment.
    8447  if(resultOffset + allocSize + VMA_DEBUG_MARGIN <= freeSpaceEnd)
    8448  {
    8449  // Check next suballocations for BufferImageGranularity conflicts.
    8450  // If conflict exists, allocation cannot be made here.
    8451  if(bufferImageGranularity > 1 && m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8452  {
    8453  for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
    8454  {
    8455  const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
    8456  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8457  {
    8458  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    8459  {
    8460  return false;
    8461  }
    8462  }
    8463  else
    8464  {
    8465  // Already on previous page.
    8466  break;
    8467  }
    8468  }
    8469  }
    8470 
    8471  // All tests passed: Success.
    8472  pAllocationRequest->offset = resultOffset;
    8473  pAllocationRequest->sumFreeSize = freeSpaceEnd - resultBaseOffset;
    8474  pAllocationRequest->sumItemSize = 0;
    8475  // pAllocationRequest->item unused.
    8476  pAllocationRequest->itemsToMakeLostCount = 0;
    8477  return true;
    8478  }
    8479  }
    8480 
    8481  // Wrap-around to end of 2nd vector. Try to allocate there, watching for the
    8482  // beginning of 1st vector as the end of free space.
    8483  if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    8484  {
    8485  VMA_ASSERT(!suballocations1st.empty());
    8486 
    8487  VkDeviceSize resultBaseOffset = 0;
    8488  if(!suballocations2nd.empty())
    8489  {
    8490  const VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8491  resultBaseOffset = lastSuballoc.offset + lastSuballoc.size;
    8492  }
    8493 
    8494  // Start from offset equal to beginning of free space.
    8495  VkDeviceSize resultOffset = resultBaseOffset;
    8496 
    8497  // Apply VMA_DEBUG_MARGIN at the beginning.
    8498  if(VMA_DEBUG_MARGIN > 0)
    8499  {
    8500  resultOffset += VMA_DEBUG_MARGIN;
    8501  }
    8502 
    8503  // Apply alignment.
    8504  resultOffset = VmaAlignUp(resultOffset, allocAlignment);
    8505 
    8506  // Check previous suballocations for BufferImageGranularity conflicts.
    8507  // Make bigger alignment if necessary.
    8508  if(bufferImageGranularity > 1 && !suballocations2nd.empty())
    8509  {
    8510  bool bufferImageGranularityConflict = false;
    8511  for(size_t prevSuballocIndex = suballocations2nd.size(); prevSuballocIndex--; )
    8512  {
    8513  const VmaSuballocation& prevSuballoc = suballocations2nd[prevSuballocIndex];
    8514  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
    8515  {
    8516  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
    8517  {
    8518  bufferImageGranularityConflict = true;
    8519  break;
    8520  }
    8521  }
    8522  else
    8523  // Already on previous page.
    8524  break;
    8525  }
    8526  if(bufferImageGranularityConflict)
    8527  {
    8528  resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
    8529  }
    8530  }
    8531 
    8532  pAllocationRequest->itemsToMakeLostCount = 0;
    8533  pAllocationRequest->sumItemSize = 0;
    8534  size_t index1st = m_1stNullItemsBeginCount;
    8535 
    8536  if(canMakeOtherLost)
    8537  {
    8538  while(index1st < suballocations1st.size() &&
    8539  resultOffset + allocSize + VMA_DEBUG_MARGIN > suballocations1st[index1st].offset)
    8540  {
    8541  // Next colliding allocation at the beginning of 1st vector found. Try to make it lost.
    8542  const VmaSuballocation& suballoc = suballocations1st[index1st];
    8543  if(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE)
    8544  {
    8545  // No problem.
    8546  }
    8547  else
    8548  {
    8549  VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE);
    8550  if(suballoc.hAllocation->CanBecomeLost() &&
    8551  suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    8552  {
    8553  ++pAllocationRequest->itemsToMakeLostCount;
    8554  pAllocationRequest->sumItemSize += suballoc.size;
    8555  }
    8556  else
    8557  {
    8558  return false;
    8559  }
    8560  }
    8561  ++index1st;
    8562  }
    8563 
    8564  // Check next suballocations for BufferImageGranularity conflicts.
    8565  // If conflict exists, we must mark more allocations lost or fail.
    8566  if(bufferImageGranularity > 1)
    8567  {
    8568  while(index1st < suballocations1st.size())
    8569  {
    8570  const VmaSuballocation& suballoc = suballocations1st[index1st];
    8571  if(VmaBlocksOnSamePage(resultOffset, allocSize, suballoc.offset, bufferImageGranularity))
    8572  {
    8573  if(suballoc.hAllocation != VK_NULL_HANDLE)
    8574  {
    8575  // Not checking actual VmaIsBufferImageGranularityConflict(allocType, suballoc.type).
    8576  if(suballoc.hAllocation->CanBecomeLost() &&
    8577  suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex)
    8578  {
    8579  ++pAllocationRequest->itemsToMakeLostCount;
    8580  pAllocationRequest->sumItemSize += suballoc.size;
    8581  }
    8582  else
    8583  {
    8584  return false;
    8585  }
    8586  }
    8587  }
    8588  else
    8589  {
    8590  // Already on next page.
    8591  break;
    8592  }
    8593  ++index1st;
    8594  }
    8595  }
    8596  }
    8597 
    8598  // There is enough free space at the end after alignment.
    8599  if(index1st == suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN < size ||
    8600  index1st < suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN <= suballocations1st[index1st].offset)
    8601  {
    8602  // Check next suballocations for BufferImageGranularity conflicts.
    8603  // If conflict exists, allocation cannot be made here.
    8604  if(bufferImageGranularity > 1)
    8605  {
    8606  for(size_t nextSuballocIndex = index1st;
    8607  nextSuballocIndex < suballocations1st.size();
    8608  nextSuballocIndex++)
    8609  {
    8610  const VmaSuballocation& nextSuballoc = suballocations1st[nextSuballocIndex];
    8611  if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
    8612  {
    8613  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
    8614  {
    8615  return false;
    8616  }
    8617  }
    8618  else
    8619  {
    8620  // Already on next page.
    8621  break;
    8622  }
    8623  }
    8624  }
    8625 
    8626  // All tests passed: Success.
    8627  pAllocationRequest->offset = resultOffset;
    8628  pAllocationRequest->sumFreeSize =
    8629  (index1st < suballocations1st.size() ? suballocations1st[index1st].offset : size)
    8630  - resultBaseOffset
    8631  - pAllocationRequest->sumItemSize;
    8632  // pAllocationRequest->item unused.
    8633  return true;
    8634  }
    8635  }
    8636  }
    8637 
    8638  return false;
    8639 }
    8640 
    8641 bool VmaBlockMetadata_Linear::MakeRequestedAllocationsLost(
    8642  uint32_t currentFrameIndex,
    8643  uint32_t frameInUseCount,
    8644  VmaAllocationRequest* pAllocationRequest)
    8645 {
    8646  if(pAllocationRequest->itemsToMakeLostCount == 0)
    8647  {
    8648  return true;
    8649  }
    8650 
    8651  VMA_ASSERT(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER);
    8652 
    8653  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8654  size_t index1st = m_1stNullItemsBeginCount;
    8655  size_t madeLostCount = 0;
    8656  while(madeLostCount < pAllocationRequest->itemsToMakeLostCount)
    8657  {
    8658  VMA_ASSERT(index1st < suballocations1st.size());
    8659  VmaSuballocation& suballoc = suballocations1st[index1st];
    8660  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8661  {
    8662  VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE);
    8663  VMA_ASSERT(suballoc.hAllocation->CanBecomeLost());
    8664  if(suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8665  {
    8666  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8667  suballoc.hAllocation = VK_NULL_HANDLE;
    8668  m_SumFreeSize += suballoc.size;
    8669  ++m_1stNullItemsMiddleCount;
    8670  ++madeLostCount;
    8671  }
    8672  else
    8673  {
    8674  return false;
    8675  }
    8676  }
    8677  ++index1st;
    8678  }
    8679 
    8680  CleanupAfterFree();
    8681  //VMA_HEAVY_ASSERT(Validate()); // Already called by ClanupAfterFree().
    8682 
    8683  return true;
    8684 }
    8685 
    8686 uint32_t VmaBlockMetadata_Linear::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount)
    8687 {
    8688  uint32_t lostAllocationCount = 0;
    8689 
    8690  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8691  for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i)
    8692  {
    8693  VmaSuballocation& suballoc = suballocations1st[i];
    8694  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE &&
    8695  suballoc.hAllocation->CanBecomeLost() &&
    8696  suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8697  {
    8698  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8699  suballoc.hAllocation = VK_NULL_HANDLE;
    8700  ++m_1stNullItemsMiddleCount;
    8701  m_SumFreeSize += suballoc.size;
    8702  ++lostAllocationCount;
    8703  }
    8704  }
    8705 
    8706  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8707  for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i)
    8708  {
    8709  VmaSuballocation& suballoc = suballocations2nd[i];
    8710  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE &&
    8711  suballoc.hAllocation->CanBecomeLost() &&
    8712  suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount))
    8713  {
    8714  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8715  suballoc.hAllocation = VK_NULL_HANDLE;
    8716  ++m_2ndNullItemsCount;
    8717  ++lostAllocationCount;
    8718  }
    8719  }
    8720 
    8721  if(lostAllocationCount)
    8722  {
    8723  CleanupAfterFree();
    8724  }
    8725 
    8726  return lostAllocationCount;
    8727 }
    8728 
    8729 VkResult VmaBlockMetadata_Linear::CheckCorruption(const void* pBlockData)
    8730 {
    8731  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8732  for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i)
    8733  {
    8734  const VmaSuballocation& suballoc = suballocations1st[i];
    8735  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8736  {
    8737  if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN))
    8738  {
    8739  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    8740  return VK_ERROR_VALIDATION_FAILED_EXT;
    8741  }
    8742  if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
    8743  {
    8744  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    8745  return VK_ERROR_VALIDATION_FAILED_EXT;
    8746  }
    8747  }
    8748  }
    8749 
    8750  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8751  for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i)
    8752  {
    8753  const VmaSuballocation& suballoc = suballocations2nd[i];
    8754  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
    8755  {
    8756  if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN))
    8757  {
    8758  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!");
    8759  return VK_ERROR_VALIDATION_FAILED_EXT;
    8760  }
    8761  if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
    8762  {
    8763  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
    8764  return VK_ERROR_VALIDATION_FAILED_EXT;
    8765  }
    8766  }
    8767  }
    8768 
    8769  return VK_SUCCESS;
    8770 }
    8771 
    8772 void VmaBlockMetadata_Linear::Alloc(
    8773  const VmaAllocationRequest& request,
    8774  VmaSuballocationType type,
    8775  VkDeviceSize allocSize,
    8776  bool upperAddress,
    8777  VmaAllocation hAllocation)
    8778 {
    8779  const VmaSuballocation newSuballoc = { request.offset, allocSize, hAllocation, type };
    8780 
    8781  if(upperAddress)
    8782  {
    8783  VMA_ASSERT(m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER &&
    8784  "CRITICAL ERROR: Trying to use linear allocator as double stack while it was already used as ring buffer.");
    8785  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8786  suballocations2nd.push_back(newSuballoc);
    8787  m_2ndVectorMode = SECOND_VECTOR_DOUBLE_STACK;
    8788  }
    8789  else
    8790  {
    8791  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8792 
    8793  // First allocation.
    8794  if(suballocations1st.empty())
    8795  {
    8796  suballocations1st.push_back(newSuballoc);
    8797  }
    8798  else
    8799  {
    8800  // New allocation at the end of 1st vector.
    8801  if(request.offset >= suballocations1st.back().offset + suballocations1st.back().size)
    8802  {
    8803  // Check if it fits before the end of the block.
    8804  VMA_ASSERT(request.offset + allocSize <= GetSize());
    8805  suballocations1st.push_back(newSuballoc);
    8806  }
    8807  // New allocation at the end of 2-part ring buffer, so before first allocation from 1st vector.
    8808  else if(request.offset + allocSize <= suballocations1st[m_1stNullItemsBeginCount].offset)
    8809  {
    8810  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8811 
    8812  switch(m_2ndVectorMode)
    8813  {
    8814  case SECOND_VECTOR_EMPTY:
    8815  // First allocation from second part ring buffer.
    8816  VMA_ASSERT(suballocations2nd.empty());
    8817  m_2ndVectorMode = SECOND_VECTOR_RING_BUFFER;
    8818  break;
    8819  case SECOND_VECTOR_RING_BUFFER:
    8820  // 2-part ring buffer is already started.
    8821  VMA_ASSERT(!suballocations2nd.empty());
    8822  break;
    8823  case SECOND_VECTOR_DOUBLE_STACK:
    8824  VMA_ASSERT(0 && "CRITICAL ERROR: Trying to use linear allocator as ring buffer while it was already used as double stack.");
    8825  break;
    8826  default:
    8827  VMA_ASSERT(0);
    8828  }
    8829 
    8830  suballocations2nd.push_back(newSuballoc);
    8831  }
    8832  else
    8833  {
    8834  VMA_ASSERT(0 && "CRITICAL INTERNAL ERROR.");
    8835  }
    8836  }
    8837  }
    8838 
    8839  m_SumFreeSize -= newSuballoc.size;
    8840 }
    8841 
    8842 void VmaBlockMetadata_Linear::Free(const VmaAllocation allocation)
    8843 {
    8844  FreeAtOffset(allocation->GetOffset());
    8845 }
    8846 
    8847 void VmaBlockMetadata_Linear::FreeAtOffset(VkDeviceSize offset)
    8848 {
    8849  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8850  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8851 
    8852  if(!suballocations1st.empty())
    8853  {
    8854  // First allocation: Mark it as next empty at the beginning.
    8855  VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
    8856  if(firstSuballoc.offset == offset)
    8857  {
    8858  firstSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
    8859  firstSuballoc.hAllocation = VK_NULL_HANDLE;
    8860  m_SumFreeSize += firstSuballoc.size;
    8861  ++m_1stNullItemsBeginCount;
    8862  CleanupAfterFree();
    8863  return;
    8864  }
    8865  }
    8866 
    8867  // Last allocation in 2-part ring buffer or top of upper stack (same logic).
    8868  if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ||
    8869  m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
    8870  {
    8871  VmaSuballocation& lastSuballoc = suballocations2nd.back();
    8872  if(lastSuballoc.offset == offset)
    8873  {
    8874  m_SumFreeSize += lastSuballoc.size;
    8875  suballocations2nd.pop_back();
    8876  CleanupAfterFree();
    8877  return;
    8878  }
    8879  }
    8880  // Last allocation in 1st vector.
    8881  else if(m_2ndVectorMode == SECOND_VECTOR_EMPTY)
    8882  {
    8883  VmaSuballocation& lastSuballoc = suballocations1st.back();
    8884  if(lastSuballoc.offset == offset)
    8885  {
    8886  m_SumFreeSize += lastSuballoc.size;
    8887  suballocations1st.pop_back();
    8888  CleanupAfterFree();
    8889  return;
    8890  }
    8891  }
    8892 
    8893  // Item from the middle of 1st vector.
    8894  {
    8895  VmaSuballocation refSuballoc;
    8896  refSuballoc.offset = offset;
    8897  // Rest of members stays uninitialized intentionally for better performance.
    8898  SuballocationVectorType::iterator it = VmaVectorFindSorted<VmaSuballocationOffsetLess>(
    8899  suballocations1st.begin() + m_1stNullItemsBeginCount,
    8900  suballocations1st.end(),
    8901  refSuballoc);
    8902  if(it != suballocations1st.end())
    8903  {
    8904  it->type = VMA_SUBALLOCATION_TYPE_FREE;
    8905  it->hAllocation = VK_NULL_HANDLE;
    8906  ++m_1stNullItemsMiddleCount;
    8907  m_SumFreeSize += it->size;
    8908  CleanupAfterFree();
    8909  return;
    8910  }
    8911  }
    8912 
    8913  if(m_2ndVectorMode != SECOND_VECTOR_EMPTY)
    8914  {
    8915  // Item from the middle of 2nd vector.
    8916  VmaSuballocation refSuballoc;
    8917  refSuballoc.offset = offset;
    8918  // Rest of members stays uninitialized intentionally for better performance.
    8919  SuballocationVectorType::iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
    8920  VmaVectorFindSorted<VmaSuballocationOffsetLess>(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc) :
    8921  VmaVectorFindSorted<VmaSuballocationOffsetGreater>(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc);
    8922  if(it != suballocations2nd.end())
    8923  {
    8924  it->type = VMA_SUBALLOCATION_TYPE_FREE;
    8925  it->hAllocation = VK_NULL_HANDLE;
    8926  ++m_2ndNullItemsCount;
    8927  m_SumFreeSize += it->size;
    8928  CleanupAfterFree();
    8929  return;
    8930  }
    8931  }
    8932 
    8933  VMA_ASSERT(0 && "Allocation to free not found in linear allocator!");
    8934 }
    8935 
    8936 bool VmaBlockMetadata_Linear::ShouldCompact1st() const
    8937 {
    8938  const size_t nullItemCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
    8939  const size_t suballocCount = AccessSuballocations1st().size();
    8940  return suballocCount > 32 && nullItemCount * 2 >= (suballocCount - nullItemCount) * 3;
    8941 }
    8942 
    8943 void VmaBlockMetadata_Linear::CleanupAfterFree()
    8944 {
    8945  SuballocationVectorType& suballocations1st = AccessSuballocations1st();
    8946  SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
    8947 
    8948  if(IsEmpty())
    8949  {
    8950  suballocations1st.clear();
    8951  suballocations2nd.clear();
    8952  m_1stNullItemsBeginCount = 0;
    8953  m_1stNullItemsMiddleCount = 0;
    8954  m_2ndNullItemsCount = 0;
    8955  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    8956  }
    8957  else
    8958  {
    8959  const size_t suballoc1stCount = suballocations1st.size();
    8960  const size_t nullItem1stCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
    8961  VMA_ASSERT(nullItem1stCount <= suballoc1stCount);
    8962 
    8963  // Find more null items at the beginning of 1st vector.
    8964  while(m_1stNullItemsBeginCount < suballoc1stCount &&
    8965  suballocations1st[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    8966  {
    8967  ++m_1stNullItemsBeginCount;
    8968  --m_1stNullItemsMiddleCount;
    8969  }
    8970 
    8971  // Find more null items at the end of 1st vector.
    8972  while(m_1stNullItemsMiddleCount > 0 &&
    8973  suballocations1st.back().hAllocation == VK_NULL_HANDLE)
    8974  {
    8975  --m_1stNullItemsMiddleCount;
    8976  suballocations1st.pop_back();
    8977  }
    8978 
    8979  // Find more null items at the end of 2nd vector.
    8980  while(m_2ndNullItemsCount > 0 &&
    8981  suballocations2nd.back().hAllocation == VK_NULL_HANDLE)
    8982  {
    8983  --m_2ndNullItemsCount;
    8984  suballocations2nd.pop_back();
    8985  }
    8986 
    8987  if(ShouldCompact1st())
    8988  {
    8989  const size_t nonNullItemCount = suballoc1stCount - nullItem1stCount;
    8990  size_t srcIndex = m_1stNullItemsBeginCount;
    8991  for(size_t dstIndex = 0; dstIndex < nonNullItemCount; ++dstIndex)
    8992  {
    8993  while(suballocations1st[srcIndex].hAllocation == VK_NULL_HANDLE)
    8994  {
    8995  ++srcIndex;
    8996  }
    8997  if(dstIndex != srcIndex)
    8998  {
    8999  suballocations1st[dstIndex] = suballocations1st[srcIndex];
    9000  }
    9001  ++srcIndex;
    9002  }
    9003  suballocations1st.resize(nonNullItemCount);
    9004  m_1stNullItemsBeginCount = 0;
    9005  m_1stNullItemsMiddleCount = 0;
    9006  }
    9007 
    9008  // 2nd vector became empty.
    9009  if(suballocations2nd.empty())
    9010  {
    9011  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    9012  }
    9013 
    9014  // 1st vector became empty.
    9015  if(suballocations1st.size() - m_1stNullItemsBeginCount == 0)
    9016  {
    9017  suballocations1st.clear();
    9018  m_1stNullItemsBeginCount = 0;
    9019 
    9020  if(!suballocations2nd.empty() && m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
    9021  {
    9022  // Swap 1st with 2nd. Now 2nd is empty.
    9023  m_2ndVectorMode = SECOND_VECTOR_EMPTY;
    9024  m_1stNullItemsMiddleCount = m_2ndNullItemsCount;
    9025  while(m_1stNullItemsBeginCount < suballocations2nd.size() &&
    9026  suballocations2nd[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE)
    9027  {
    9028  ++m_1stNullItemsBeginCount;
    9029  --m_1stNullItemsMiddleCount;
    9030  }
    9031  m_2ndNullItemsCount = 0;
    9032  m_1stVectorIndex ^= 1;
    9033  }
    9034  }
    9035  }
    9036 
    9037  VMA_HEAVY_ASSERT(Validate());
    9038 }
    9039 
    9040 
    9042 // class VmaDeviceMemoryBlock
    9043 
    9044 VmaDeviceMemoryBlock::VmaDeviceMemoryBlock(VmaAllocator hAllocator) :
    9045  m_pMetadata(VMA_NULL),
    9046  m_MemoryTypeIndex(UINT32_MAX),
    9047  m_Id(0),
    9048  m_hMemory(VK_NULL_HANDLE),
    9049  m_MapCount(0),
    9050  m_pMappedData(VMA_NULL)
    9051 {
    9052 }
    9053 
    9054 void VmaDeviceMemoryBlock::Init(
    9055  VmaAllocator hAllocator,
    9056  uint32_t newMemoryTypeIndex,
    9057  VkDeviceMemory newMemory,
    9058  VkDeviceSize newSize,
    9059  uint32_t id,
    9060  bool linearAlgorithm)
    9061 {
    9062  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
    9063 
    9064  m_MemoryTypeIndex = newMemoryTypeIndex;
    9065  m_Id = id;
    9066  m_hMemory = newMemory;
    9067 
    9068  if(linearAlgorithm)
    9069  {
    9070  m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Linear)(hAllocator);
    9071  }
    9072  else
    9073  {
    9074  m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Generic)(hAllocator);
    9075  }
    9076  m_pMetadata->Init(newSize);
    9077 }
    9078 
    9079 void VmaDeviceMemoryBlock::Destroy(VmaAllocator allocator)
    9080 {
    9081  // This is the most important assert in the entire library.
    9082  // Hitting it means you have some memory leak - unreleased VmaAllocation objects.
    9083  VMA_ASSERT(m_pMetadata->IsEmpty() && "Some allocations were not freed before destruction of this memory block!");
    9084 
    9085  VMA_ASSERT(m_hMemory != VK_NULL_HANDLE);
    9086  allocator->FreeVulkanMemory(m_MemoryTypeIndex, m_pMetadata->GetSize(), m_hMemory);
    9087  m_hMemory = VK_NULL_HANDLE;
    9088 
    9089  vma_delete(allocator, m_pMetadata);
    9090  m_pMetadata = VMA_NULL;
    9091 }
    9092 
    9093 bool VmaDeviceMemoryBlock::Validate() const
    9094 {
    9095  if((m_hMemory == VK_NULL_HANDLE) ||
    9096  (m_pMetadata->GetSize() == 0))
    9097  {
    9098  return false;
    9099  }
    9100 
    9101  return m_pMetadata->Validate();
    9102 }
    9103 
    9104 VkResult VmaDeviceMemoryBlock::CheckCorruption(VmaAllocator hAllocator)
    9105 {
    9106  void* pData = nullptr;
    9107  VkResult res = Map(hAllocator, 1, &pData);
    9108  if(res != VK_SUCCESS)
    9109  {
    9110  return res;
    9111  }
    9112 
    9113  res = m_pMetadata->CheckCorruption(pData);
    9114 
    9115  Unmap(hAllocator, 1);
    9116 
    9117  return res;
    9118 }
    9119 
    9120 VkResult VmaDeviceMemoryBlock::Map(VmaAllocator hAllocator, uint32_t count, void** ppData)
    9121 {
    9122  if(count == 0)
    9123  {
    9124  return VK_SUCCESS;
    9125  }
    9126 
    9127  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9128  if(m_MapCount != 0)
    9129  {
    9130  m_MapCount += count;
    9131  VMA_ASSERT(m_pMappedData != VMA_NULL);
    9132  if(ppData != VMA_NULL)
    9133  {
    9134  *ppData = m_pMappedData;
    9135  }
    9136  return VK_SUCCESS;
    9137  }
    9138  else
    9139  {
    9140  VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
    9141  hAllocator->m_hDevice,
    9142  m_hMemory,
    9143  0, // offset
    9144  VK_WHOLE_SIZE,
    9145  0, // flags
    9146  &m_pMappedData);
    9147  if(result == VK_SUCCESS)
    9148  {
    9149  if(ppData != VMA_NULL)
    9150  {
    9151  *ppData = m_pMappedData;
    9152  }
    9153  m_MapCount = count;
    9154  }
    9155  return result;
    9156  }
    9157 }
    9158 
    9159 void VmaDeviceMemoryBlock::Unmap(VmaAllocator hAllocator, uint32_t count)
    9160 {
    9161  if(count == 0)
    9162  {
    9163  return;
    9164  }
    9165 
    9166  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9167  if(m_MapCount >= count)
    9168  {
    9169  m_MapCount -= count;
    9170  if(m_MapCount == 0)
    9171  {
    9172  m_pMappedData = VMA_NULL;
    9173  (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(hAllocator->m_hDevice, m_hMemory);
    9174  }
    9175  }
    9176  else
    9177  {
    9178  VMA_ASSERT(0 && "VkDeviceMemory block is being unmapped while it was not previously mapped.");
    9179  }
    9180 }
    9181 
    9182 VkResult VmaDeviceMemoryBlock::WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
    9183 {
    9184  VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
    9185  VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN);
    9186 
    9187  void* pData;
    9188  VkResult res = Map(hAllocator, 1, &pData);
    9189  if(res != VK_SUCCESS)
    9190  {
    9191  return res;
    9192  }
    9193 
    9194  VmaWriteMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN);
    9195  VmaWriteMagicValue(pData, allocOffset + allocSize);
    9196 
    9197  Unmap(hAllocator, 1);
    9198 
    9199  return VK_SUCCESS;
    9200 }
    9201 
    9202 VkResult VmaDeviceMemoryBlock::ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
    9203 {
    9204  VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
    9205  VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN);
    9206 
    9207  void* pData;
    9208  VkResult res = Map(hAllocator, 1, &pData);
    9209  if(res != VK_SUCCESS)
    9210  {
    9211  return res;
    9212  }
    9213 
    9214  if(!VmaValidateMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN))
    9215  {
    9216  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE FREED ALLOCATION!");
    9217  }
    9218  else if(!VmaValidateMagicValue(pData, allocOffset + allocSize))
    9219  {
    9220  VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER FREED ALLOCATION!");
    9221  }
    9222 
    9223  Unmap(hAllocator, 1);
    9224 
    9225  return VK_SUCCESS;
    9226 }
    9227 
    9228 VkResult VmaDeviceMemoryBlock::BindBufferMemory(
    9229  const VmaAllocator hAllocator,
    9230  const VmaAllocation hAllocation,
    9231  VkBuffer hBuffer)
    9232 {
    9233  VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
    9234  hAllocation->GetBlock() == this);
    9235  // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
    9236  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9237  return hAllocator->GetVulkanFunctions().vkBindBufferMemory(
    9238  hAllocator->m_hDevice,
    9239  hBuffer,
    9240  m_hMemory,
    9241  hAllocation->GetOffset());
    9242 }
    9243 
    9244 VkResult VmaDeviceMemoryBlock::BindImageMemory(
    9245  const VmaAllocator hAllocator,
    9246  const VmaAllocation hAllocation,
    9247  VkImage hImage)
    9248 {
    9249  VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
    9250  hAllocation->GetBlock() == this);
    9251  // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
    9252  VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex);
    9253  return hAllocator->GetVulkanFunctions().vkBindImageMemory(
    9254  hAllocator->m_hDevice,
    9255  hImage,
    9256  m_hMemory,
    9257  hAllocation->GetOffset());
    9258 }
    9259 
    9260 static void InitStatInfo(VmaStatInfo& outInfo)
    9261 {
    9262  memset(&outInfo, 0, sizeof(outInfo));
    9263  outInfo.allocationSizeMin = UINT64_MAX;
    9264  outInfo.unusedRangeSizeMin = UINT64_MAX;
    9265 }
    9266 
    9267 // Adds statistics srcInfo into inoutInfo, like: inoutInfo += srcInfo.
    9268 static void VmaAddStatInfo(VmaStatInfo& inoutInfo, const VmaStatInfo& srcInfo)
    9269 {
    9270  inoutInfo.blockCount += srcInfo.blockCount;
    9271  inoutInfo.allocationCount += srcInfo.allocationCount;
    9272  inoutInfo.unusedRangeCount += srcInfo.unusedRangeCount;
    9273  inoutInfo.usedBytes += srcInfo.usedBytes;
    9274  inoutInfo.unusedBytes += srcInfo.unusedBytes;
    9275  inoutInfo.allocationSizeMin = VMA_MIN(inoutInfo.allocationSizeMin, srcInfo.allocationSizeMin);
    9276  inoutInfo.allocationSizeMax = VMA_MAX(inoutInfo.allocationSizeMax, srcInfo.allocationSizeMax);
    9277  inoutInfo.unusedRangeSizeMin = VMA_MIN(inoutInfo.unusedRangeSizeMin, srcInfo.unusedRangeSizeMin);
    9278  inoutInfo.unusedRangeSizeMax = VMA_MAX(inoutInfo.unusedRangeSizeMax, srcInfo.unusedRangeSizeMax);
    9279 }
    9280 
    9281 static void VmaPostprocessCalcStatInfo(VmaStatInfo& inoutInfo)
    9282 {
    9283  inoutInfo.allocationSizeAvg = (inoutInfo.allocationCount > 0) ?
    9284  VmaRoundDiv<VkDeviceSize>(inoutInfo.usedBytes, inoutInfo.allocationCount) : 0;
    9285  inoutInfo.unusedRangeSizeAvg = (inoutInfo.unusedRangeCount > 0) ?
    9286  VmaRoundDiv<VkDeviceSize>(inoutInfo.unusedBytes, inoutInfo.unusedRangeCount) : 0;
    9287 }
    9288 
    9289 VmaPool_T::VmaPool_T(
    9290  VmaAllocator hAllocator,
    9291  const VmaPoolCreateInfo& createInfo) :
    9292  m_BlockVector(
    9293  hAllocator,
    9294  createInfo.memoryTypeIndex,
    9295  createInfo.blockSize,
    9296  createInfo.minBlockCount,
    9297  createInfo.maxBlockCount,
    9298  (createInfo.flags & VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT) != 0 ? 1 : hAllocator->GetBufferImageGranularity(),
    9299  createInfo.frameInUseCount,
    9300  true, // isCustomPool
    9301  (createInfo.flags & VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) != 0), // linearAlgorithm
    9302  m_Id(0)
    9303 {
    9304 }
    9305 
    9306 VmaPool_T::~VmaPool_T()
    9307 {
    9308 }
    9309 
    9310 #if VMA_STATS_STRING_ENABLED
    9311 
    9312 #endif // #if VMA_STATS_STRING_ENABLED
    9313 
    9314 VmaBlockVector::VmaBlockVector(
    9315  VmaAllocator hAllocator,
    9316  uint32_t memoryTypeIndex,
    9317  VkDeviceSize preferredBlockSize,
    9318  size_t minBlockCount,
    9319  size_t maxBlockCount,
    9320  VkDeviceSize bufferImageGranularity,
    9321  uint32_t frameInUseCount,
    9322  bool isCustomPool,
    9323  bool linearAlgorithm) :
    9324  m_hAllocator(hAllocator),
    9325  m_MemoryTypeIndex(memoryTypeIndex),
    9326  m_PreferredBlockSize(preferredBlockSize),
    9327  m_MinBlockCount(minBlockCount),
    9328  m_MaxBlockCount(maxBlockCount),
    9329  m_BufferImageGranularity(bufferImageGranularity),
    9330  m_FrameInUseCount(frameInUseCount),
    9331  m_IsCustomPool(isCustomPool),
    9332  m_LinearAlgorithm(linearAlgorithm),
    9333  m_Blocks(VmaStlAllocator<VmaDeviceMemoryBlock*>(hAllocator->GetAllocationCallbacks())),
    9334  m_HasEmptyBlock(false),
    9335  m_pDefragmentator(VMA_NULL),
    9336  m_NextBlockId(0)
    9337 {
    9338 }
    9339 
    9340 VmaBlockVector::~VmaBlockVector()
    9341 {
    9342  VMA_ASSERT(m_pDefragmentator == VMA_NULL);
    9343 
    9344  for(size_t i = m_Blocks.size(); i--; )
    9345  {
    9346  m_Blocks[i]->Destroy(m_hAllocator);
    9347  vma_delete(m_hAllocator, m_Blocks[i]);
    9348  }
    9349 }
    9350 
    9351 VkResult VmaBlockVector::CreateMinBlocks()
    9352 {
    9353  for(size_t i = 0; i < m_MinBlockCount; ++i)
    9354  {
    9355  VkResult res = CreateBlock(m_PreferredBlockSize, VMA_NULL);
    9356  if(res != VK_SUCCESS)
    9357  {
    9358  return res;
    9359  }
    9360  }
    9361  return VK_SUCCESS;
    9362 }
    9363 
    9364 void VmaBlockVector::GetPoolStats(VmaPoolStats* pStats)
    9365 {
    9366  pStats->size = 0;
    9367  pStats->unusedSize = 0;
    9368  pStats->allocationCount = 0;
    9369  pStats->unusedRangeCount = 0;
    9370  pStats->unusedRangeSizeMax = 0;
    9371 
    9372  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9373 
    9374  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    9375  {
    9376  const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    9377  VMA_ASSERT(pBlock);
    9378  VMA_HEAVY_ASSERT(pBlock->Validate());
    9379  pBlock->m_pMetadata->AddPoolStats(*pStats);
    9380  }
    9381 }
    9382 
    9383 bool VmaBlockVector::IsCorruptionDetectionEnabled() const
    9384 {
    9385  const uint32_t requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    9386  return (VMA_DEBUG_DETECT_CORRUPTION != 0) &&
    9387  (VMA_DEBUG_MARGIN > 0) &&
    9388  (m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags;
    9389 }
    9390 
    9391 static const uint32_t VMA_ALLOCATION_TRY_COUNT = 32;
    9392 
    9393 VkResult VmaBlockVector::Allocate(
    9394  VmaPool hCurrentPool,
    9395  uint32_t currentFrameIndex,
    9396  VkDeviceSize size,
    9397  VkDeviceSize alignment,
    9398  const VmaAllocationCreateInfo& createInfo,
    9399  VmaSuballocationType suballocType,
    9400  VmaAllocation* pAllocation)
    9401 {
    9402  const bool isUpperAddress = (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0;
    9403  const bool canMakeOtherLost = (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT) != 0;
    9404  const bool mapped = (createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
    9405  const bool isUserDataString = (createInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0;
    9406  const bool canCreateNewBlock =
    9407  ((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0) &&
    9408  (m_Blocks.size() < m_MaxBlockCount);
    9409 
    9410  // Upper address can only be used with linear allocator.
    9411  if(isUpperAddress && !m_LinearAlgorithm)
    9412  {
    9413  return VK_ERROR_FEATURE_NOT_PRESENT;
    9414  }
    9415 
    9416  // Early reject: requested allocation size is larger that maximum block size for this block vector.
    9417  if(size + 2 * VMA_DEBUG_MARGIN > m_PreferredBlockSize)
    9418  {
    9419  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9420  }
    9421 
    9422  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9423 
    9424  /*
    9425  Under certain condition, this whole section can be skipped for optimization, so
    9426  we move on directly to trying to allocate with canMakeOtherLost. That's the case
    9427  e.g. for custom pools with linear algorithm.
    9428  */
    9429  if(!canMakeOtherLost || canCreateNewBlock)
    9430  {
    9431  // 1. Search existing allocations. Try to allocate without making other allocations lost.
    9432  // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
    9433  for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex )
    9434  {
    9435  VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
    9436  VMA_ASSERT(pCurrBlock);
    9437  VmaAllocationRequest currRequest = {};
    9438  if(pCurrBlock->m_pMetadata->CreateAllocationRequest(
    9439  currentFrameIndex,
    9440  m_FrameInUseCount,
    9441  m_BufferImageGranularity,
    9442  size,
    9443  alignment,
    9444  isUpperAddress,
    9445  suballocType,
    9446  false, // canMakeOtherLost
    9447  &currRequest))
    9448  {
    9449  // Allocate from pCurrBlock.
    9450  VMA_ASSERT(currRequest.itemsToMakeLostCount == 0);
    9451 
    9452  if(mapped)
    9453  {
    9454  VkResult res = pCurrBlock->Map(m_hAllocator, 1, VMA_NULL);
    9455  if(res != VK_SUCCESS)
    9456  {
    9457  return res;
    9458  }
    9459  }
    9460 
    9461  // We no longer have an empty Allocation.
    9462  if(pCurrBlock->m_pMetadata->IsEmpty())
    9463  {
    9464  m_HasEmptyBlock = false;
    9465  }
    9466 
    9467  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9468  pCurrBlock->m_pMetadata->Alloc(currRequest, suballocType, size, isUpperAddress, *pAllocation);
    9469  (*pAllocation)->InitBlockAllocation(
    9470  hCurrentPool,
    9471  pCurrBlock,
    9472  currRequest.offset,
    9473  alignment,
    9474  size,
    9475  suballocType,
    9476  mapped,
    9477  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9478  VMA_HEAVY_ASSERT(pCurrBlock->Validate());
    9479  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex);
    9480  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9481  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9482  {
    9483  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9484  }
    9485  if(IsCorruptionDetectionEnabled())
    9486  {
    9487  VkResult res = pCurrBlock->WriteMagicValueAroundAllocation(m_hAllocator, currRequest.offset, size);
    9488  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9489  }
    9490  return VK_SUCCESS;
    9491  }
    9492  }
    9493 
    9494  // 2. Try to create new block.
    9495  if(canCreateNewBlock)
    9496  {
    9497  // Calculate optimal size for new block.
    9498  VkDeviceSize newBlockSize = m_PreferredBlockSize;
    9499  uint32_t newBlockSizeShift = 0;
    9500  const uint32_t NEW_BLOCK_SIZE_SHIFT_MAX = 3;
    9501 
    9502  // Allocating blocks of other sizes is allowed only in default pools.
    9503  // In custom pools block size is fixed.
    9504  if(m_IsCustomPool == false)
    9505  {
    9506  // Allocate 1/8, 1/4, 1/2 as first blocks.
    9507  const VkDeviceSize maxExistingBlockSize = CalcMaxBlockSize();
    9508  for(uint32_t i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i)
    9509  {
    9510  const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
    9511  if(smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= size * 2)
    9512  {
    9513  newBlockSize = smallerNewBlockSize;
    9514  ++newBlockSizeShift;
    9515  }
    9516  else
    9517  {
    9518  break;
    9519  }
    9520  }
    9521  }
    9522 
    9523  size_t newBlockIndex = 0;
    9524  VkResult res = CreateBlock(newBlockSize, &newBlockIndex);
    9525  // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize.
    9526  if(m_IsCustomPool == false)
    9527  {
    9528  while(res < 0 && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX)
    9529  {
    9530  const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
    9531  if(smallerNewBlockSize >= size)
    9532  {
    9533  newBlockSize = smallerNewBlockSize;
    9534  ++newBlockSizeShift;
    9535  res = CreateBlock(newBlockSize, &newBlockIndex);
    9536  }
    9537  else
    9538  {
    9539  break;
    9540  }
    9541  }
    9542  }
    9543 
    9544  if(res == VK_SUCCESS)
    9545  {
    9546  VmaDeviceMemoryBlock* const pBlock = m_Blocks[newBlockIndex];
    9547  VMA_ASSERT(pBlock->m_pMetadata->GetSize() >= size);
    9548 
    9549  if(mapped)
    9550  {
    9551  res = pBlock->Map(m_hAllocator, 1, VMA_NULL);
    9552  if(res != VK_SUCCESS)
    9553  {
    9554  return res;
    9555  }
    9556  }
    9557 
    9558  // Allocate from pBlock. Because it is empty, dstAllocRequest can be trivially filled.
    9559  VmaAllocationRequest allocRequest;
    9560  if(pBlock->m_pMetadata->CreateAllocationRequest(
    9561  currentFrameIndex,
    9562  m_FrameInUseCount,
    9563  m_BufferImageGranularity,
    9564  size,
    9565  alignment,
    9566  isUpperAddress,
    9567  suballocType,
    9568  false, // canMakeOtherLost
    9569  &allocRequest))
    9570  {
    9571  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9572  pBlock->m_pMetadata->Alloc(allocRequest, suballocType, size, isUpperAddress, *pAllocation);
    9573  (*pAllocation)->InitBlockAllocation(
    9574  hCurrentPool,
    9575  pBlock,
    9576  allocRequest.offset,
    9577  alignment,
    9578  size,
    9579  suballocType,
    9580  mapped,
    9581  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9582  VMA_HEAVY_ASSERT(pBlock->Validate());
    9583  VMA_DEBUG_LOG(" Created new allocation Size=%llu", allocInfo.allocationSize);
    9584  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9585  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9586  {
    9587  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9588  }
    9589  if(IsCorruptionDetectionEnabled())
    9590  {
    9591  res = pBlock->WriteMagicValueAroundAllocation(m_hAllocator, allocRequest.offset, size);
    9592  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9593  }
    9594  return VK_SUCCESS;
    9595  }
    9596  else
    9597  {
    9598  // Allocation from empty block failed, possibly due to VMA_DEBUG_MARGIN or alignment.
    9599  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9600  }
    9601  }
    9602  }
    9603  }
    9604 
    9605  // 3. Try to allocate from existing blocks with making other allocations lost.
    9606  if(canMakeOtherLost)
    9607  {
    9608  uint32_t tryIndex = 0;
    9609  for(; tryIndex < VMA_ALLOCATION_TRY_COUNT; ++tryIndex)
    9610  {
    9611  VmaDeviceMemoryBlock* pBestRequestBlock = VMA_NULL;
    9612  VmaAllocationRequest bestRequest = {};
    9613  VkDeviceSize bestRequestCost = VK_WHOLE_SIZE;
    9614 
    9615  // 1. Search existing allocations.
    9616  // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
    9617  for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex )
    9618  {
    9619  VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
    9620  VMA_ASSERT(pCurrBlock);
    9621  VmaAllocationRequest currRequest = {};
    9622  if(pCurrBlock->m_pMetadata->CreateAllocationRequest(
    9623  currentFrameIndex,
    9624  m_FrameInUseCount,
    9625  m_BufferImageGranularity,
    9626  size,
    9627  alignment,
    9628  (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0,
    9629  suballocType,
    9630  canMakeOtherLost,
    9631  &currRequest))
    9632  {
    9633  const VkDeviceSize currRequestCost = currRequest.CalcCost();
    9634  if(pBestRequestBlock == VMA_NULL ||
    9635  currRequestCost < bestRequestCost)
    9636  {
    9637  pBestRequestBlock = pCurrBlock;
    9638  bestRequest = currRequest;
    9639  bestRequestCost = currRequestCost;
    9640 
    9641  if(bestRequestCost == 0)
    9642  {
    9643  break;
    9644  }
    9645  }
    9646  }
    9647  }
    9648 
    9649  if(pBestRequestBlock != VMA_NULL)
    9650  {
    9651  if(mapped)
    9652  {
    9653  VkResult res = pBestRequestBlock->Map(m_hAllocator, 1, VMA_NULL);
    9654  if(res != VK_SUCCESS)
    9655  {
    9656  return res;
    9657  }
    9658  }
    9659 
    9660  if(pBestRequestBlock->m_pMetadata->MakeRequestedAllocationsLost(
    9661  currentFrameIndex,
    9662  m_FrameInUseCount,
    9663  &bestRequest))
    9664  {
    9665  // We no longer have an empty Allocation.
    9666  if(pBestRequestBlock->m_pMetadata->IsEmpty())
    9667  {
    9668  m_HasEmptyBlock = false;
    9669  }
    9670  // Allocate from this pBlock.
    9671  *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString);
    9672  pBestRequestBlock->m_pMetadata->Alloc(bestRequest, suballocType, size, isUpperAddress, *pAllocation);
    9673  (*pAllocation)->InitBlockAllocation(
    9674  hCurrentPool,
    9675  pBestRequestBlock,
    9676  bestRequest.offset,
    9677  alignment,
    9678  size,
    9679  suballocType,
    9680  mapped,
    9681  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0);
    9682  VMA_HEAVY_ASSERT(pBestRequestBlock->Validate());
    9683  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex);
    9684  (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData);
    9685  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    9686  {
    9687  m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    9688  }
    9689  if(IsCorruptionDetectionEnabled())
    9690  {
    9691  VkResult res = pBestRequestBlock->WriteMagicValueAroundAllocation(m_hAllocator, bestRequest.offset, size);
    9692  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
    9693  }
    9694  return VK_SUCCESS;
    9695  }
    9696  // else: Some allocations must have been touched while we are here. Next try.
    9697  }
    9698  else
    9699  {
    9700  // Could not find place in any of the blocks - break outer loop.
    9701  break;
    9702  }
    9703  }
    9704  /* Maximum number of tries exceeded - a very unlike event when many other
    9705  threads are simultaneously touching allocations making it impossible to make
    9706  lost at the same time as we try to allocate. */
    9707  if(tryIndex == VMA_ALLOCATION_TRY_COUNT)
    9708  {
    9709  return VK_ERROR_TOO_MANY_OBJECTS;
    9710  }
    9711  }
    9712 
    9713  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    9714 }
    9715 
    9716 void VmaBlockVector::Free(
    9717  VmaAllocation hAllocation)
    9718 {
    9719  VmaDeviceMemoryBlock* pBlockToDelete = VMA_NULL;
    9720 
    9721  // Scope for lock.
    9722  {
    9723  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9724 
    9725  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    9726 
    9727  if(IsCorruptionDetectionEnabled())
    9728  {
    9729  VkResult res = pBlock->ValidateMagicValueAroundAllocation(m_hAllocator, hAllocation->GetOffset(), hAllocation->GetSize());
    9730  VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to validate magic value.");
    9731  }
    9732 
    9733  if(hAllocation->IsPersistentMap())
    9734  {
    9735  pBlock->Unmap(m_hAllocator, 1);
    9736  }
    9737 
    9738  pBlock->m_pMetadata->Free(hAllocation);
    9739  VMA_HEAVY_ASSERT(pBlock->Validate());
    9740 
    9741  VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", memTypeIndex);
    9742 
    9743  // pBlock became empty after this deallocation.
    9744  if(pBlock->m_pMetadata->IsEmpty())
    9745  {
    9746  // Already has empty Allocation. We don't want to have two, so delete this one.
    9747  if(m_HasEmptyBlock && m_Blocks.size() > m_MinBlockCount)
    9748  {
    9749  pBlockToDelete = pBlock;
    9750  Remove(pBlock);
    9751  }
    9752  // We now have first empty block.
    9753  else
    9754  {
    9755  m_HasEmptyBlock = true;
    9756  }
    9757  }
    9758  // pBlock didn't become empty, but we have another empty block - find and free that one.
    9759  // (This is optional, heuristics.)
    9760  else if(m_HasEmptyBlock)
    9761  {
    9762  VmaDeviceMemoryBlock* pLastBlock = m_Blocks.back();
    9763  if(pLastBlock->m_pMetadata->IsEmpty() && m_Blocks.size() > m_MinBlockCount)
    9764  {
    9765  pBlockToDelete = pLastBlock;
    9766  m_Blocks.pop_back();
    9767  m_HasEmptyBlock = false;
    9768  }
    9769  }
    9770 
    9771  IncrementallySortBlocks();
    9772  }
    9773 
    9774  // Destruction of a free Allocation. Deferred until this point, outside of mutex
    9775  // lock, for performance reason.
    9776  if(pBlockToDelete != VMA_NULL)
    9777  {
    9778  VMA_DEBUG_LOG(" Deleted empty allocation");
    9779  pBlockToDelete->Destroy(m_hAllocator);
    9780  vma_delete(m_hAllocator, pBlockToDelete);
    9781  }
    9782 }
    9783 
    9784 VkDeviceSize VmaBlockVector::CalcMaxBlockSize() const
    9785 {
    9786  VkDeviceSize result = 0;
    9787  for(size_t i = m_Blocks.size(); i--; )
    9788  {
    9789  result = VMA_MAX(result, m_Blocks[i]->m_pMetadata->GetSize());
    9790  if(result >= m_PreferredBlockSize)
    9791  {
    9792  break;
    9793  }
    9794  }
    9795  return result;
    9796 }
    9797 
    9798 void VmaBlockVector::Remove(VmaDeviceMemoryBlock* pBlock)
    9799 {
    9800  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    9801  {
    9802  if(m_Blocks[blockIndex] == pBlock)
    9803  {
    9804  VmaVectorRemove(m_Blocks, blockIndex);
    9805  return;
    9806  }
    9807  }
    9808  VMA_ASSERT(0);
    9809 }
    9810 
    9811 void VmaBlockVector::IncrementallySortBlocks()
    9812 {
    9813  // Bubble sort only until first swap.
    9814  for(size_t i = 1; i < m_Blocks.size(); ++i)
    9815  {
    9816  if(m_Blocks[i - 1]->m_pMetadata->GetSumFreeSize() > m_Blocks[i]->m_pMetadata->GetSumFreeSize())
    9817  {
    9818  VMA_SWAP(m_Blocks[i - 1], m_Blocks[i]);
    9819  return;
    9820  }
    9821  }
    9822 }
    9823 
    9824 VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex)
    9825 {
    9826  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
    9827  allocInfo.memoryTypeIndex = m_MemoryTypeIndex;
    9828  allocInfo.allocationSize = blockSize;
    9829  VkDeviceMemory mem = VK_NULL_HANDLE;
    9830  VkResult res = m_hAllocator->AllocateVulkanMemory(&allocInfo, &mem);
    9831  if(res < 0)
    9832  {
    9833  return res;
    9834  }
    9835 
    9836  // New VkDeviceMemory successfully created.
    9837 
    9838  // Create new Allocation for it.
    9839  VmaDeviceMemoryBlock* const pBlock = vma_new(m_hAllocator, VmaDeviceMemoryBlock)(m_hAllocator);
    9840  pBlock->Init(
    9841  m_hAllocator,
    9842  m_MemoryTypeIndex,
    9843  mem,
    9844  allocInfo.allocationSize,
    9845  m_NextBlockId++,
    9846  m_LinearAlgorithm);
    9847 
    9848  m_Blocks.push_back(pBlock);
    9849  if(pNewBlockIndex != VMA_NULL)
    9850  {
    9851  *pNewBlockIndex = m_Blocks.size() - 1;
    9852  }
    9853 
    9854  return VK_SUCCESS;
    9855 }
    9856 
    9857 #if VMA_STATS_STRING_ENABLED
    9858 
    9859 void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json)
    9860 {
    9861  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9862 
    9863  json.BeginObject();
    9864 
    9865  if(m_IsCustomPool)
    9866  {
    9867  json.WriteString("MemoryTypeIndex");
    9868  json.WriteNumber(m_MemoryTypeIndex);
    9869 
    9870  json.WriteString("BlockSize");
    9871  json.WriteNumber(m_PreferredBlockSize);
    9872 
    9873  json.WriteString("BlockCount");
    9874  json.BeginObject(true);
    9875  if(m_MinBlockCount > 0)
    9876  {
    9877  json.WriteString("Min");
    9878  json.WriteNumber((uint64_t)m_MinBlockCount);
    9879  }
    9880  if(m_MaxBlockCount < SIZE_MAX)
    9881  {
    9882  json.WriteString("Max");
    9883  json.WriteNumber((uint64_t)m_MaxBlockCount);
    9884  }
    9885  json.WriteString("Cur");
    9886  json.WriteNumber((uint64_t)m_Blocks.size());
    9887  json.EndObject();
    9888 
    9889  if(m_FrameInUseCount > 0)
    9890  {
    9891  json.WriteString("FrameInUseCount");
    9892  json.WriteNumber(m_FrameInUseCount);
    9893  }
    9894 
    9895  if(m_LinearAlgorithm)
    9896  {
    9897  json.WriteString("LinearAlgorithm");
    9898  json.WriteBool(true);
    9899  }
    9900  }
    9901  else
    9902  {
    9903  json.WriteString("PreferredBlockSize");
    9904  json.WriteNumber(m_PreferredBlockSize);
    9905  }
    9906 
    9907  json.WriteString("Blocks");
    9908  json.BeginObject();
    9909  for(size_t i = 0; i < m_Blocks.size(); ++i)
    9910  {
    9911  json.BeginString();
    9912  json.ContinueString(m_Blocks[i]->GetId());
    9913  json.EndString();
    9914 
    9915  m_Blocks[i]->m_pMetadata->PrintDetailedMap(json);
    9916  }
    9917  json.EndObject();
    9918 
    9919  json.EndObject();
    9920 }
    9921 
    9922 #endif // #if VMA_STATS_STRING_ENABLED
    9923 
    9924 VmaDefragmentator* VmaBlockVector::EnsureDefragmentator(
    9925  VmaAllocator hAllocator,
    9926  uint32_t currentFrameIndex)
    9927 {
    9928  if(m_pDefragmentator == VMA_NULL)
    9929  {
    9930  m_pDefragmentator = vma_new(m_hAllocator, VmaDefragmentator)(
    9931  hAllocator,
    9932  this,
    9933  currentFrameIndex);
    9934  }
    9935 
    9936  return m_pDefragmentator;
    9937 }
    9938 
    9939 VkResult VmaBlockVector::Defragment(
    9940  VmaDefragmentationStats* pDefragmentationStats,
    9941  VkDeviceSize& maxBytesToMove,
    9942  uint32_t& maxAllocationsToMove)
    9943 {
    9944  if(m_pDefragmentator == VMA_NULL)
    9945  {
    9946  return VK_SUCCESS;
    9947  }
    9948 
    9949  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    9950 
    9951  // Defragment.
    9952  VkResult result = m_pDefragmentator->Defragment(maxBytesToMove, maxAllocationsToMove);
    9953 
    9954  // Accumulate statistics.
    9955  if(pDefragmentationStats != VMA_NULL)
    9956  {
    9957  const VkDeviceSize bytesMoved = m_pDefragmentator->GetBytesMoved();
    9958  const uint32_t allocationsMoved = m_pDefragmentator->GetAllocationsMoved();
    9959  pDefragmentationStats->bytesMoved += bytesMoved;
    9960  pDefragmentationStats->allocationsMoved += allocationsMoved;
    9961  VMA_ASSERT(bytesMoved <= maxBytesToMove);
    9962  VMA_ASSERT(allocationsMoved <= maxAllocationsToMove);
    9963  maxBytesToMove -= bytesMoved;
    9964  maxAllocationsToMove -= allocationsMoved;
    9965  }
    9966 
    9967  // Free empty blocks.
    9968  m_HasEmptyBlock = false;
    9969  for(size_t blockIndex = m_Blocks.size(); blockIndex--; )
    9970  {
    9971  VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex];
    9972  if(pBlock->m_pMetadata->IsEmpty())
    9973  {
    9974  if(m_Blocks.size() > m_MinBlockCount)
    9975  {
    9976  if(pDefragmentationStats != VMA_NULL)
    9977  {
    9978  ++pDefragmentationStats->deviceMemoryBlocksFreed;
    9979  pDefragmentationStats->bytesFreed += pBlock->m_pMetadata->GetSize();
    9980  }
    9981 
    9982  VmaVectorRemove(m_Blocks, blockIndex);
    9983  pBlock->Destroy(m_hAllocator);
    9984  vma_delete(m_hAllocator, pBlock);
    9985  }
    9986  else
    9987  {
    9988  m_HasEmptyBlock = true;
    9989  }
    9990  }
    9991  }
    9992 
    9993  return result;
    9994 }
    9995 
    9996 void VmaBlockVector::DestroyDefragmentator()
    9997 {
    9998  if(m_pDefragmentator != VMA_NULL)
    9999  {
    10000  vma_delete(m_hAllocator, m_pDefragmentator);
    10001  m_pDefragmentator = VMA_NULL;
    10002  }
    10003 }
    10004 
    10005 void VmaBlockVector::MakePoolAllocationsLost(
    10006  uint32_t currentFrameIndex,
    10007  size_t* pLostAllocationCount)
    10008 {
    10009  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10010  size_t lostAllocationCount = 0;
    10011  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10012  {
    10013  VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10014  VMA_ASSERT(pBlock);
    10015  lostAllocationCount += pBlock->m_pMetadata->MakeAllocationsLost(currentFrameIndex, m_FrameInUseCount);
    10016  }
    10017  if(pLostAllocationCount != VMA_NULL)
    10018  {
    10019  *pLostAllocationCount = lostAllocationCount;
    10020  }
    10021 }
    10022 
    10023 VkResult VmaBlockVector::CheckCorruption()
    10024 {
    10025  if(!IsCorruptionDetectionEnabled())
    10026  {
    10027  return VK_ERROR_FEATURE_NOT_PRESENT;
    10028  }
    10029 
    10030  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10031  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10032  {
    10033  VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10034  VMA_ASSERT(pBlock);
    10035  VkResult res = pBlock->CheckCorruption(m_hAllocator);
    10036  if(res != VK_SUCCESS)
    10037  {
    10038  return res;
    10039  }
    10040  }
    10041  return VK_SUCCESS;
    10042 }
    10043 
    10044 void VmaBlockVector::AddStats(VmaStats* pStats)
    10045 {
    10046  const uint32_t memTypeIndex = m_MemoryTypeIndex;
    10047  const uint32_t memHeapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(memTypeIndex);
    10048 
    10049  VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex);
    10050 
    10051  for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
    10052  {
    10053  const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
    10054  VMA_ASSERT(pBlock);
    10055  VMA_HEAVY_ASSERT(pBlock->Validate());
    10056  VmaStatInfo allocationStatInfo;
    10057  pBlock->m_pMetadata->CalcAllocationStatInfo(allocationStatInfo);
    10058  VmaAddStatInfo(pStats->total, allocationStatInfo);
    10059  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
    10060  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
    10061  }
    10062 }
    10063 
    10065 // VmaDefragmentator members definition
    10066 
    10067 VmaDefragmentator::VmaDefragmentator(
    10068  VmaAllocator hAllocator,
    10069  VmaBlockVector* pBlockVector,
    10070  uint32_t currentFrameIndex) :
    10071  m_hAllocator(hAllocator),
    10072  m_pBlockVector(pBlockVector),
    10073  m_CurrentFrameIndex(currentFrameIndex),
    10074  m_BytesMoved(0),
    10075  m_AllocationsMoved(0),
    10076  m_Allocations(VmaStlAllocator<AllocationInfo>(hAllocator->GetAllocationCallbacks())),
    10077  m_Blocks(VmaStlAllocator<BlockInfo*>(hAllocator->GetAllocationCallbacks()))
    10078 {
    10079  VMA_ASSERT(!pBlockVector->UsesLinearAlgorithm());
    10080 }
    10081 
    10082 VmaDefragmentator::~VmaDefragmentator()
    10083 {
    10084  for(size_t i = m_Blocks.size(); i--; )
    10085  {
    10086  vma_delete(m_hAllocator, m_Blocks[i]);
    10087  }
    10088 }
    10089 
    10090 void VmaDefragmentator::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged)
    10091 {
    10092  AllocationInfo allocInfo;
    10093  allocInfo.m_hAllocation = hAlloc;
    10094  allocInfo.m_pChanged = pChanged;
    10095  m_Allocations.push_back(allocInfo);
    10096 }
    10097 
    10098 VkResult VmaDefragmentator::BlockInfo::EnsureMapping(VmaAllocator hAllocator, void** ppMappedData)
    10099 {
    10100  // It has already been mapped for defragmentation.
    10101  if(m_pMappedDataForDefragmentation)
    10102  {
    10103  *ppMappedData = m_pMappedDataForDefragmentation;
    10104  return VK_SUCCESS;
    10105  }
    10106 
    10107  // It is originally mapped.
    10108  if(m_pBlock->GetMappedData())
    10109  {
    10110  *ppMappedData = m_pBlock->GetMappedData();
    10111  return VK_SUCCESS;
    10112  }
    10113 
    10114  // Map on first usage.
    10115  VkResult res = m_pBlock->Map(hAllocator, 1, &m_pMappedDataForDefragmentation);
    10116  *ppMappedData = m_pMappedDataForDefragmentation;
    10117  return res;
    10118 }
    10119 
    10120 void VmaDefragmentator::BlockInfo::Unmap(VmaAllocator hAllocator)
    10121 {
    10122  if(m_pMappedDataForDefragmentation != VMA_NULL)
    10123  {
    10124  m_pBlock->Unmap(hAllocator, 1);
    10125  }
    10126 }
    10127 
    10128 VkResult VmaDefragmentator::DefragmentRound(
    10129  VkDeviceSize maxBytesToMove,
    10130  uint32_t maxAllocationsToMove)
    10131 {
    10132  if(m_Blocks.empty())
    10133  {
    10134  return VK_SUCCESS;
    10135  }
    10136 
    10137  size_t srcBlockIndex = m_Blocks.size() - 1;
    10138  size_t srcAllocIndex = SIZE_MAX;
    10139  for(;;)
    10140  {
    10141  // 1. Find next allocation to move.
    10142  // 1.1. Start from last to first m_Blocks - they are sorted from most "destination" to most "source".
    10143  // 1.2. Then start from last to first m_Allocations - they are sorted from largest to smallest.
    10144  while(srcAllocIndex >= m_Blocks[srcBlockIndex]->m_Allocations.size())
    10145  {
    10146  if(m_Blocks[srcBlockIndex]->m_Allocations.empty())
    10147  {
    10148  // Finished: no more allocations to process.
    10149  if(srcBlockIndex == 0)
    10150  {
    10151  return VK_SUCCESS;
    10152  }
    10153  else
    10154  {
    10155  --srcBlockIndex;
    10156  srcAllocIndex = SIZE_MAX;
    10157  }
    10158  }
    10159  else
    10160  {
    10161  srcAllocIndex = m_Blocks[srcBlockIndex]->m_Allocations.size() - 1;
    10162  }
    10163  }
    10164 
    10165  BlockInfo* pSrcBlockInfo = m_Blocks[srcBlockIndex];
    10166  AllocationInfo& allocInfo = pSrcBlockInfo->m_Allocations[srcAllocIndex];
    10167 
    10168  const VkDeviceSize size = allocInfo.m_hAllocation->GetSize();
    10169  const VkDeviceSize srcOffset = allocInfo.m_hAllocation->GetOffset();
    10170  const VkDeviceSize alignment = allocInfo.m_hAllocation->GetAlignment();
    10171  const VmaSuballocationType suballocType = allocInfo.m_hAllocation->GetSuballocationType();
    10172 
    10173  // 2. Try to find new place for this allocation in preceding or current block.
    10174  for(size_t dstBlockIndex = 0; dstBlockIndex <= srcBlockIndex; ++dstBlockIndex)
    10175  {
    10176  BlockInfo* pDstBlockInfo = m_Blocks[dstBlockIndex];
    10177  VmaAllocationRequest dstAllocRequest;
    10178  if(pDstBlockInfo->m_pBlock->m_pMetadata->CreateAllocationRequest(
    10179  m_CurrentFrameIndex,
    10180  m_pBlockVector->GetFrameInUseCount(),
    10181  m_pBlockVector->GetBufferImageGranularity(),
    10182  size,
    10183  alignment,
    10184  false, // upperAddress
    10185  suballocType,
    10186  false, // canMakeOtherLost
    10187  &dstAllocRequest) &&
    10188  MoveMakesSense(
    10189  dstBlockIndex, dstAllocRequest.offset, srcBlockIndex, srcOffset))
    10190  {
    10191  VMA_ASSERT(dstAllocRequest.itemsToMakeLostCount == 0);
    10192 
    10193  // Reached limit on number of allocations or bytes to move.
    10194  if((m_AllocationsMoved + 1 > maxAllocationsToMove) ||
    10195  (m_BytesMoved + size > maxBytesToMove))
    10196  {
    10197  return VK_INCOMPLETE;
    10198  }
    10199 
    10200  void* pDstMappedData = VMA_NULL;
    10201  VkResult res = pDstBlockInfo->EnsureMapping(m_hAllocator, &pDstMappedData);
    10202  if(res != VK_SUCCESS)
    10203  {
    10204  return res;
    10205  }
    10206 
    10207  void* pSrcMappedData = VMA_NULL;
    10208  res = pSrcBlockInfo->EnsureMapping(m_hAllocator, &pSrcMappedData);
    10209  if(res != VK_SUCCESS)
    10210  {
    10211  return res;
    10212  }
    10213 
    10214  // THE PLACE WHERE ACTUAL DATA COPY HAPPENS.
    10215  memcpy(
    10216  reinterpret_cast<char*>(pDstMappedData) + dstAllocRequest.offset,
    10217  reinterpret_cast<char*>(pSrcMappedData) + srcOffset,
    10218  static_cast<size_t>(size));
    10219 
    10220  if(VMA_DEBUG_MARGIN > 0)
    10221  {
    10222  VmaWriteMagicValue(pDstMappedData, dstAllocRequest.offset - VMA_DEBUG_MARGIN);
    10223  VmaWriteMagicValue(pDstMappedData, dstAllocRequest.offset + size);
    10224  }
    10225 
    10226  pDstBlockInfo->m_pBlock->m_pMetadata->Alloc(
    10227  dstAllocRequest,
    10228  suballocType,
    10229  size,
    10230  false, // upperAddress
    10231  allocInfo.m_hAllocation);
    10232  pSrcBlockInfo->m_pBlock->m_pMetadata->FreeAtOffset(srcOffset);
    10233 
    10234  allocInfo.m_hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlockInfo->m_pBlock, dstAllocRequest.offset);
    10235 
    10236  if(allocInfo.m_pChanged != VMA_NULL)
    10237  {
    10238  *allocInfo.m_pChanged = VK_TRUE;
    10239  }
    10240 
    10241  ++m_AllocationsMoved;
    10242  m_BytesMoved += size;
    10243 
    10244  VmaVectorRemove(pSrcBlockInfo->m_Allocations, srcAllocIndex);
    10245 
    10246  break;
    10247  }
    10248  }
    10249 
    10250  // If not processed, this allocInfo remains in pBlockInfo->m_Allocations for next round.
    10251 
    10252  if(srcAllocIndex > 0)
    10253  {
    10254  --srcAllocIndex;
    10255  }
    10256  else
    10257  {
    10258  if(srcBlockIndex > 0)
    10259  {
    10260  --srcBlockIndex;
    10261  srcAllocIndex = SIZE_MAX;
    10262  }
    10263  else
    10264  {
    10265  return VK_SUCCESS;
    10266  }
    10267  }
    10268  }
    10269 }
    10270 
    10271 VkResult VmaDefragmentator::Defragment(
    10272  VkDeviceSize maxBytesToMove,
    10273  uint32_t maxAllocationsToMove)
    10274 {
    10275  if(m_Allocations.empty())
    10276  {
    10277  return VK_SUCCESS;
    10278  }
    10279 
    10280  // Create block info for each block.
    10281  const size_t blockCount = m_pBlockVector->m_Blocks.size();
    10282  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10283  {
    10284  BlockInfo* pBlockInfo = vma_new(m_hAllocator, BlockInfo)(m_hAllocator->GetAllocationCallbacks());
    10285  pBlockInfo->m_pBlock = m_pBlockVector->m_Blocks[blockIndex];
    10286  m_Blocks.push_back(pBlockInfo);
    10287  }
    10288 
    10289  // Sort them by m_pBlock pointer value.
    10290  VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockPointerLess());
    10291 
    10292  // Move allocation infos from m_Allocations to appropriate m_Blocks[memTypeIndex].m_Allocations.
    10293  for(size_t blockIndex = 0, allocCount = m_Allocations.size(); blockIndex < allocCount; ++blockIndex)
    10294  {
    10295  AllocationInfo& allocInfo = m_Allocations[blockIndex];
    10296  // Now as we are inside VmaBlockVector::m_Mutex, we can make final check if this allocation was not lost.
    10297  if(allocInfo.m_hAllocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)
    10298  {
    10299  VmaDeviceMemoryBlock* pBlock = allocInfo.m_hAllocation->GetBlock();
    10300  BlockInfoVector::iterator it = VmaBinaryFindFirstNotLess(m_Blocks.begin(), m_Blocks.end(), pBlock, BlockPointerLess());
    10301  if(it != m_Blocks.end() && (*it)->m_pBlock == pBlock)
    10302  {
    10303  (*it)->m_Allocations.push_back(allocInfo);
    10304  }
    10305  else
    10306  {
    10307  VMA_ASSERT(0);
    10308  }
    10309  }
    10310  }
    10311  m_Allocations.clear();
    10312 
    10313  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10314  {
    10315  BlockInfo* pBlockInfo = m_Blocks[blockIndex];
    10316  pBlockInfo->CalcHasNonMovableAllocations();
    10317  pBlockInfo->SortAllocationsBySizeDescecnding();
    10318  }
    10319 
    10320  // Sort m_Blocks this time by the main criterium, from most "destination" to most "source" blocks.
    10321  VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockInfoCompareMoveDestination());
    10322 
    10323  // Execute defragmentation rounds (the main part).
    10324  VkResult result = VK_SUCCESS;
    10325  for(size_t round = 0; (round < 2) && (result == VK_SUCCESS); ++round)
    10326  {
    10327  result = DefragmentRound(maxBytesToMove, maxAllocationsToMove);
    10328  }
    10329 
    10330  // Unmap blocks that were mapped for defragmentation.
    10331  for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
    10332  {
    10333  m_Blocks[blockIndex]->Unmap(m_hAllocator);
    10334  }
    10335 
    10336  return result;
    10337 }
    10338 
    10339 bool VmaDefragmentator::MoveMakesSense(
    10340  size_t dstBlockIndex, VkDeviceSize dstOffset,
    10341  size_t srcBlockIndex, VkDeviceSize srcOffset)
    10342 {
    10343  if(dstBlockIndex < srcBlockIndex)
    10344  {
    10345  return true;
    10346  }
    10347  if(dstBlockIndex > srcBlockIndex)
    10348  {
    10349  return false;
    10350  }
    10351  if(dstOffset < srcOffset)
    10352  {
    10353  return true;
    10354  }
    10355  return false;
    10356 }
    10357 
    10359 // VmaRecorder
    10360 
    10361 #if VMA_RECORDING_ENABLED
    10362 
    10363 VmaRecorder::VmaRecorder() :
    10364  m_UseMutex(true),
    10365  m_Flags(0),
    10366  m_File(VMA_NULL),
    10367  m_Freq(INT64_MAX),
    10368  m_StartCounter(INT64_MAX)
    10369 {
    10370 }
    10371 
    10372 VkResult VmaRecorder::Init(const VmaRecordSettings& settings, bool useMutex)
    10373 {
    10374  m_UseMutex = useMutex;
    10375  m_Flags = settings.flags;
    10376 
    10377  QueryPerformanceFrequency((LARGE_INTEGER*)&m_Freq);
    10378  QueryPerformanceCounter((LARGE_INTEGER*)&m_StartCounter);
    10379 
    10380  // Open file for writing.
    10381  errno_t err = fopen_s(&m_File, settings.pFilePath, "wb");
    10382  if(err != 0)
    10383  {
    10384  return VK_ERROR_INITIALIZATION_FAILED;
    10385  }
    10386 
    10387  // Write header.
    10388  fprintf(m_File, "%s\n", "Vulkan Memory Allocator,Calls recording");
    10389  fprintf(m_File, "%s\n", "1,3");
    10390 
    10391  return VK_SUCCESS;
    10392 }
    10393 
    10394 VmaRecorder::~VmaRecorder()
    10395 {
    10396  if(m_File != VMA_NULL)
    10397  {
    10398  fclose(m_File);
    10399  }
    10400 }
    10401 
    10402 void VmaRecorder::RecordCreateAllocator(uint32_t frameIndex)
    10403 {
    10404  CallParams callParams;
    10405  GetBasicParams(callParams);
    10406 
    10407  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10408  fprintf(m_File, "%u,%.3f,%u,vmaCreateAllocator\n", callParams.threadId, callParams.time, frameIndex);
    10409  Flush();
    10410 }
    10411 
    10412 void VmaRecorder::RecordDestroyAllocator(uint32_t frameIndex)
    10413 {
    10414  CallParams callParams;
    10415  GetBasicParams(callParams);
    10416 
    10417  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10418  fprintf(m_File, "%u,%.3f,%u,vmaDestroyAllocator\n", callParams.threadId, callParams.time, frameIndex);
    10419  Flush();
    10420 }
    10421 
    10422 void VmaRecorder::RecordCreatePool(uint32_t frameIndex, const VmaPoolCreateInfo& createInfo, VmaPool pool)
    10423 {
    10424  CallParams callParams;
    10425  GetBasicParams(callParams);
    10426 
    10427  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10428  fprintf(m_File, "%u,%.3f,%u,vmaCreatePool,%u,%u,%llu,%llu,%llu,%u,%p\n", callParams.threadId, callParams.time, frameIndex,
    10429  createInfo.memoryTypeIndex,
    10430  createInfo.flags,
    10431  createInfo.blockSize,
    10432  createInfo.minBlockCount,
    10433  createInfo.maxBlockCount,
    10434  createInfo.frameInUseCount,
    10435  pool);
    10436  Flush();
    10437 }
    10438 
    10439 void VmaRecorder::RecordDestroyPool(uint32_t frameIndex, VmaPool pool)
    10440 {
    10441  CallParams callParams;
    10442  GetBasicParams(callParams);
    10443 
    10444  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10445  fprintf(m_File, "%u,%.3f,%u,vmaDestroyPool,%p\n", callParams.threadId, callParams.time, frameIndex,
    10446  pool);
    10447  Flush();
    10448 }
    10449 
    10450 void VmaRecorder::RecordAllocateMemory(uint32_t frameIndex,
    10451  const VkMemoryRequirements& vkMemReq,
    10452  const VmaAllocationCreateInfo& createInfo,
    10453  VmaAllocation allocation)
    10454 {
    10455  CallParams callParams;
    10456  GetBasicParams(callParams);
    10457 
    10458  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10459  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10460  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemory,%llu,%llu,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10461  vkMemReq.size,
    10462  vkMemReq.alignment,
    10463  vkMemReq.memoryTypeBits,
    10464  createInfo.flags,
    10465  createInfo.usage,
    10466  createInfo.requiredFlags,
    10467  createInfo.preferredFlags,
    10468  createInfo.memoryTypeBits,
    10469  createInfo.pool,
    10470  allocation,
    10471  userDataStr.GetString());
    10472  Flush();
    10473 }
    10474 
    10475 void VmaRecorder::RecordAllocateMemoryForBuffer(uint32_t frameIndex,
    10476  const VkMemoryRequirements& vkMemReq,
    10477  bool requiresDedicatedAllocation,
    10478  bool prefersDedicatedAllocation,
    10479  const VmaAllocationCreateInfo& createInfo,
    10480  VmaAllocation allocation)
    10481 {
    10482  CallParams callParams;
    10483  GetBasicParams(callParams);
    10484 
    10485  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10486  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10487  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForBuffer,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10488  vkMemReq.size,
    10489  vkMemReq.alignment,
    10490  vkMemReq.memoryTypeBits,
    10491  requiresDedicatedAllocation ? 1 : 0,
    10492  prefersDedicatedAllocation ? 1 : 0,
    10493  createInfo.flags,
    10494  createInfo.usage,
    10495  createInfo.requiredFlags,
    10496  createInfo.preferredFlags,
    10497  createInfo.memoryTypeBits,
    10498  createInfo.pool,
    10499  allocation,
    10500  userDataStr.GetString());
    10501  Flush();
    10502 }
    10503 
    10504 void VmaRecorder::RecordAllocateMemoryForImage(uint32_t frameIndex,
    10505  const VkMemoryRequirements& vkMemReq,
    10506  bool requiresDedicatedAllocation,
    10507  bool prefersDedicatedAllocation,
    10508  const VmaAllocationCreateInfo& createInfo,
    10509  VmaAllocation allocation)
    10510 {
    10511  CallParams callParams;
    10512  GetBasicParams(callParams);
    10513 
    10514  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10515  UserDataString userDataStr(createInfo.flags, createInfo.pUserData);
    10516  fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForImage,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10517  vkMemReq.size,
    10518  vkMemReq.alignment,
    10519  vkMemReq.memoryTypeBits,
    10520  requiresDedicatedAllocation ? 1 : 0,
    10521  prefersDedicatedAllocation ? 1 : 0,
    10522  createInfo.flags,
    10523  createInfo.usage,
    10524  createInfo.requiredFlags,
    10525  createInfo.preferredFlags,
    10526  createInfo.memoryTypeBits,
    10527  createInfo.pool,
    10528  allocation,
    10529  userDataStr.GetString());
    10530  Flush();
    10531 }
    10532 
    10533 void VmaRecorder::RecordFreeMemory(uint32_t frameIndex,
    10534  VmaAllocation allocation)
    10535 {
    10536  CallParams callParams;
    10537  GetBasicParams(callParams);
    10538 
    10539  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10540  fprintf(m_File, "%u,%.3f,%u,vmaFreeMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10541  allocation);
    10542  Flush();
    10543 }
    10544 
    10545 void VmaRecorder::RecordSetAllocationUserData(uint32_t frameIndex,
    10546  VmaAllocation allocation,
    10547  const void* pUserData)
    10548 {
    10549  CallParams callParams;
    10550  GetBasicParams(callParams);
    10551 
    10552  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10553  UserDataString userDataStr(
    10554  allocation->IsUserDataString() ? VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT : 0,
    10555  pUserData);
    10556  fprintf(m_File, "%u,%.3f,%u,vmaSetAllocationUserData,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10557  allocation,
    10558  userDataStr.GetString());
    10559  Flush();
    10560 }
    10561 
    10562 void VmaRecorder::RecordCreateLostAllocation(uint32_t frameIndex,
    10563  VmaAllocation allocation)
    10564 {
    10565  CallParams callParams;
    10566  GetBasicParams(callParams);
    10567 
    10568  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10569  fprintf(m_File, "%u,%.3f,%u,vmaCreateLostAllocation,%p\n", callParams.threadId, callParams.time, frameIndex,
    10570  allocation);
    10571  Flush();
    10572 }
    10573 
    10574 void VmaRecorder::RecordMapMemory(uint32_t frameIndex,
    10575  VmaAllocation allocation)
    10576 {
    10577  CallParams callParams;
    10578  GetBasicParams(callParams);
    10579 
    10580  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10581  fprintf(m_File, "%u,%.3f,%u,vmaMapMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10582  allocation);
    10583  Flush();
    10584 }
    10585 
    10586 void VmaRecorder::RecordUnmapMemory(uint32_t frameIndex,
    10587  VmaAllocation allocation)
    10588 {
    10589  CallParams callParams;
    10590  GetBasicParams(callParams);
    10591 
    10592  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10593  fprintf(m_File, "%u,%.3f,%u,vmaUnmapMemory,%p\n", callParams.threadId, callParams.time, frameIndex,
    10594  allocation);
    10595  Flush();
    10596 }
    10597 
    10598 void VmaRecorder::RecordFlushAllocation(uint32_t frameIndex,
    10599  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    10600 {
    10601  CallParams callParams;
    10602  GetBasicParams(callParams);
    10603 
    10604  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10605  fprintf(m_File, "%u,%.3f,%u,vmaFlushAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex,
    10606  allocation,
    10607  offset,
    10608  size);
    10609  Flush();
    10610 }
    10611 
    10612 void VmaRecorder::RecordInvalidateAllocation(uint32_t frameIndex,
    10613  VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    10614 {
    10615  CallParams callParams;
    10616  GetBasicParams(callParams);
    10617 
    10618  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10619  fprintf(m_File, "%u,%.3f,%u,vmaInvalidateAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex,
    10620  allocation,
    10621  offset,
    10622  size);
    10623  Flush();
    10624 }
    10625 
    10626 void VmaRecorder::RecordCreateBuffer(uint32_t frameIndex,
    10627  const VkBufferCreateInfo& bufCreateInfo,
    10628  const VmaAllocationCreateInfo& allocCreateInfo,
    10629  VmaAllocation allocation)
    10630 {
    10631  CallParams callParams;
    10632  GetBasicParams(callParams);
    10633 
    10634  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10635  UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData);
    10636  fprintf(m_File, "%u,%.3f,%u,vmaCreateBuffer,%u,%llu,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10637  bufCreateInfo.flags,
    10638  bufCreateInfo.size,
    10639  bufCreateInfo.usage,
    10640  bufCreateInfo.sharingMode,
    10641  allocCreateInfo.flags,
    10642  allocCreateInfo.usage,
    10643  allocCreateInfo.requiredFlags,
    10644  allocCreateInfo.preferredFlags,
    10645  allocCreateInfo.memoryTypeBits,
    10646  allocCreateInfo.pool,
    10647  allocation,
    10648  userDataStr.GetString());
    10649  Flush();
    10650 }
    10651 
    10652 void VmaRecorder::RecordCreateImage(uint32_t frameIndex,
    10653  const VkImageCreateInfo& imageCreateInfo,
    10654  const VmaAllocationCreateInfo& allocCreateInfo,
    10655  VmaAllocation allocation)
    10656 {
    10657  CallParams callParams;
    10658  GetBasicParams(callParams);
    10659 
    10660  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10661  UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData);
    10662  fprintf(m_File, "%u,%.3f,%u,vmaCreateImage,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex,
    10663  imageCreateInfo.flags,
    10664  imageCreateInfo.imageType,
    10665  imageCreateInfo.format,
    10666  imageCreateInfo.extent.width,
    10667  imageCreateInfo.extent.height,
    10668  imageCreateInfo.extent.depth,
    10669  imageCreateInfo.mipLevels,
    10670  imageCreateInfo.arrayLayers,
    10671  imageCreateInfo.samples,
    10672  imageCreateInfo.tiling,
    10673  imageCreateInfo.usage,
    10674  imageCreateInfo.sharingMode,
    10675  imageCreateInfo.initialLayout,
    10676  allocCreateInfo.flags,
    10677  allocCreateInfo.usage,
    10678  allocCreateInfo.requiredFlags,
    10679  allocCreateInfo.preferredFlags,
    10680  allocCreateInfo.memoryTypeBits,
    10681  allocCreateInfo.pool,
    10682  allocation,
    10683  userDataStr.GetString());
    10684  Flush();
    10685 }
    10686 
    10687 void VmaRecorder::RecordDestroyBuffer(uint32_t frameIndex,
    10688  VmaAllocation allocation)
    10689 {
    10690  CallParams callParams;
    10691  GetBasicParams(callParams);
    10692 
    10693  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10694  fprintf(m_File, "%u,%.3f,%u,vmaDestroyBuffer,%p\n", callParams.threadId, callParams.time, frameIndex,
    10695  allocation);
    10696  Flush();
    10697 }
    10698 
    10699 void VmaRecorder::RecordDestroyImage(uint32_t frameIndex,
    10700  VmaAllocation allocation)
    10701 {
    10702  CallParams callParams;
    10703  GetBasicParams(callParams);
    10704 
    10705  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10706  fprintf(m_File, "%u,%.3f,%u,vmaDestroyImage,%p\n", callParams.threadId, callParams.time, frameIndex,
    10707  allocation);
    10708  Flush();
    10709 }
    10710 
    10711 void VmaRecorder::RecordTouchAllocation(uint32_t frameIndex,
    10712  VmaAllocation allocation)
    10713 {
    10714  CallParams callParams;
    10715  GetBasicParams(callParams);
    10716 
    10717  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10718  fprintf(m_File, "%u,%.3f,%u,vmaTouchAllocation,%p\n", callParams.threadId, callParams.time, frameIndex,
    10719  allocation);
    10720  Flush();
    10721 }
    10722 
    10723 void VmaRecorder::RecordGetAllocationInfo(uint32_t frameIndex,
    10724  VmaAllocation allocation)
    10725 {
    10726  CallParams callParams;
    10727  GetBasicParams(callParams);
    10728 
    10729  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10730  fprintf(m_File, "%u,%.3f,%u,vmaGetAllocationInfo,%p\n", callParams.threadId, callParams.time, frameIndex,
    10731  allocation);
    10732  Flush();
    10733 }
    10734 
    10735 void VmaRecorder::RecordMakePoolAllocationsLost(uint32_t frameIndex,
    10736  VmaPool pool)
    10737 {
    10738  CallParams callParams;
    10739  GetBasicParams(callParams);
    10740 
    10741  VmaMutexLock lock(m_FileMutex, m_UseMutex);
    10742  fprintf(m_File, "%u,%.3f,%u,vmaMakePoolAllocationsLost,%p\n", callParams.threadId, callParams.time, frameIndex,
    10743  pool);
    10744  Flush();
    10745 }
    10746 
    10747 VmaRecorder::UserDataString::UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData)
    10748 {
    10749  if(pUserData != VMA_NULL)
    10750  {
    10751  if((allocFlags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0)
    10752  {
    10753  m_Str = (const char*)pUserData;
    10754  }
    10755  else
    10756  {
    10757  sprintf_s(m_PtrStr, "%p", pUserData);
    10758  m_Str = m_PtrStr;
    10759  }
    10760  }
    10761  else
    10762  {
    10763  m_Str = "";
    10764  }
    10765 }
    10766 
    10767 void VmaRecorder::WriteConfiguration(
    10768  const VkPhysicalDeviceProperties& devProps,
    10769  const VkPhysicalDeviceMemoryProperties& memProps,
    10770  bool dedicatedAllocationExtensionEnabled)
    10771 {
    10772  fprintf(m_File, "Config,Begin\n");
    10773 
    10774  fprintf(m_File, "PhysicalDevice,apiVersion,%u\n", devProps.apiVersion);
    10775  fprintf(m_File, "PhysicalDevice,driverVersion,%u\n", devProps.driverVersion);
    10776  fprintf(m_File, "PhysicalDevice,vendorID,%u\n", devProps.vendorID);
    10777  fprintf(m_File, "PhysicalDevice,deviceID,%u\n", devProps.deviceID);
    10778  fprintf(m_File, "PhysicalDevice,deviceType,%u\n", devProps.deviceType);
    10779  fprintf(m_File, "PhysicalDevice,deviceName,%s\n", devProps.deviceName);
    10780 
    10781  fprintf(m_File, "PhysicalDeviceLimits,maxMemoryAllocationCount,%u\n", devProps.limits.maxMemoryAllocationCount);
    10782  fprintf(m_File, "PhysicalDeviceLimits,bufferImageGranularity,%llu\n", devProps.limits.bufferImageGranularity);
    10783  fprintf(m_File, "PhysicalDeviceLimits,nonCoherentAtomSize,%llu\n", devProps.limits.nonCoherentAtomSize);
    10784 
    10785  fprintf(m_File, "PhysicalDeviceMemory,HeapCount,%u\n", memProps.memoryHeapCount);
    10786  for(uint32_t i = 0; i < memProps.memoryHeapCount; ++i)
    10787  {
    10788  fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,size,%llu\n", i, memProps.memoryHeaps[i].size);
    10789  fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,flags,%u\n", i, memProps.memoryHeaps[i].flags);
    10790  }
    10791  fprintf(m_File, "PhysicalDeviceMemory,TypeCount,%u\n", memProps.memoryTypeCount);
    10792  for(uint32_t i = 0; i < memProps.memoryTypeCount; ++i)
    10793  {
    10794  fprintf(m_File, "PhysicalDeviceMemory,Type,%u,heapIndex,%u\n", i, memProps.memoryTypes[i].heapIndex);
    10795  fprintf(m_File, "PhysicalDeviceMemory,Type,%u,propertyFlags,%u\n", i, memProps.memoryTypes[i].propertyFlags);
    10796  }
    10797 
    10798  fprintf(m_File, "Extension,VK_KHR_dedicated_allocation,%u\n", dedicatedAllocationExtensionEnabled ? 1 : 0);
    10799 
    10800  fprintf(m_File, "Macro,VMA_DEBUG_ALWAYS_DEDICATED_MEMORY,%u\n", VMA_DEBUG_ALWAYS_DEDICATED_MEMORY ? 1 : 0);
    10801  fprintf(m_File, "Macro,VMA_DEBUG_ALIGNMENT,%llu\n", (VkDeviceSize)VMA_DEBUG_ALIGNMENT);
    10802  fprintf(m_File, "Macro,VMA_DEBUG_MARGIN,%llu\n", (VkDeviceSize)VMA_DEBUG_MARGIN);
    10803  fprintf(m_File, "Macro,VMA_DEBUG_INITIALIZE_ALLOCATIONS,%u\n", VMA_DEBUG_INITIALIZE_ALLOCATIONS ? 1 : 0);
    10804  fprintf(m_File, "Macro,VMA_DEBUG_DETECT_CORRUPTION,%u\n", VMA_DEBUG_DETECT_CORRUPTION ? 1 : 0);
    10805  fprintf(m_File, "Macro,VMA_DEBUG_GLOBAL_MUTEX,%u\n", VMA_DEBUG_GLOBAL_MUTEX ? 1 : 0);
    10806  fprintf(m_File, "Macro,VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY,%llu\n", (VkDeviceSize)VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY);
    10807  fprintf(m_File, "Macro,VMA_SMALL_HEAP_MAX_SIZE,%llu\n", (VkDeviceSize)VMA_SMALL_HEAP_MAX_SIZE);
    10808  fprintf(m_File, "Macro,VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE,%llu\n", (VkDeviceSize)VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
    10809 
    10810  fprintf(m_File, "Config,End\n");
    10811 }
    10812 
    10813 void VmaRecorder::GetBasicParams(CallParams& outParams)
    10814 {
    10815  outParams.threadId = GetCurrentThreadId();
    10816 
    10817  LARGE_INTEGER counter;
    10818  QueryPerformanceCounter(&counter);
    10819  outParams.time = (double)(counter.QuadPart - m_StartCounter) / (double)m_Freq;
    10820 }
    10821 
    10822 void VmaRecorder::Flush()
    10823 {
    10824  if((m_Flags & VMA_RECORD_FLUSH_AFTER_CALL_BIT) != 0)
    10825  {
    10826  fflush(m_File);
    10827  }
    10828 }
    10829 
    10830 #endif // #if VMA_RECORDING_ENABLED
    10831 
    10833 // VmaAllocator_T
    10834 
    10835 VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) :
    10836  m_UseMutex((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT) == 0),
    10837  m_UseKhrDedicatedAllocation((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0),
    10838  m_hDevice(pCreateInfo->device),
    10839  m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL),
    10840  m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ?
    10841  *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks),
    10842  m_PreferredLargeHeapBlockSize(0),
    10843  m_PhysicalDevice(pCreateInfo->physicalDevice),
    10844  m_CurrentFrameIndex(0),
    10845  m_Pools(VmaStlAllocator<VmaPool>(GetAllocationCallbacks())),
    10846  m_NextPoolId(0)
    10847 #if VMA_RECORDING_ENABLED
    10848  ,m_pRecorder(VMA_NULL)
    10849 #endif
    10850 {
    10851  if(VMA_DEBUG_DETECT_CORRUPTION)
    10852  {
    10853  // Needs to be multiply of uint32_t size because we are going to write VMA_CORRUPTION_DETECTION_MAGIC_VALUE to it.
    10854  VMA_ASSERT(VMA_DEBUG_MARGIN % sizeof(uint32_t) == 0);
    10855  }
    10856 
    10857  VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device);
    10858 
    10859 #if !(VMA_DEDICATED_ALLOCATION)
    10860  if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0)
    10861  {
    10862  VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT set but required extensions are disabled by preprocessor macros.");
    10863  }
    10864 #endif
    10865 
    10866  memset(&m_DeviceMemoryCallbacks, 0 ,sizeof(m_DeviceMemoryCallbacks));
    10867  memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties));
    10868  memset(&m_MemProps, 0, sizeof(m_MemProps));
    10869 
    10870  memset(&m_pBlockVectors, 0, sizeof(m_pBlockVectors));
    10871  memset(&m_pDedicatedAllocations, 0, sizeof(m_pDedicatedAllocations));
    10872 
    10873  for(uint32_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
    10874  {
    10875  m_HeapSizeLimit[i] = VK_WHOLE_SIZE;
    10876  }
    10877 
    10878  if(pCreateInfo->pDeviceMemoryCallbacks != VMA_NULL)
    10879  {
    10880  m_DeviceMemoryCallbacks.pfnAllocate = pCreateInfo->pDeviceMemoryCallbacks->pfnAllocate;
    10881  m_DeviceMemoryCallbacks.pfnFree = pCreateInfo->pDeviceMemoryCallbacks->pfnFree;
    10882  }
    10883 
    10884  ImportVulkanFunctions(pCreateInfo->pVulkanFunctions);
    10885 
    10886  (*m_VulkanFunctions.vkGetPhysicalDeviceProperties)(m_PhysicalDevice, &m_PhysicalDeviceProperties);
    10887  (*m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties)(m_PhysicalDevice, &m_MemProps);
    10888 
    10889  m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ?
    10890  pCreateInfo->preferredLargeHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
    10891 
    10892  if(pCreateInfo->pHeapSizeLimit != VMA_NULL)
    10893  {
    10894  for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex)
    10895  {
    10896  const VkDeviceSize limit = pCreateInfo->pHeapSizeLimit[heapIndex];
    10897  if(limit != VK_WHOLE_SIZE)
    10898  {
    10899  m_HeapSizeLimit[heapIndex] = limit;
    10900  if(limit < m_MemProps.memoryHeaps[heapIndex].size)
    10901  {
    10902  m_MemProps.memoryHeaps[heapIndex].size = limit;
    10903  }
    10904  }
    10905  }
    10906  }
    10907 
    10908  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    10909  {
    10910  const VkDeviceSize preferredBlockSize = CalcPreferredBlockSize(memTypeIndex);
    10911 
    10912  m_pBlockVectors[memTypeIndex] = vma_new(this, VmaBlockVector)(
    10913  this,
    10914  memTypeIndex,
    10915  preferredBlockSize,
    10916  0,
    10917  SIZE_MAX,
    10918  GetBufferImageGranularity(),
    10919  pCreateInfo->frameInUseCount,
    10920  false, // isCustomPool
    10921  false); // linearAlgorithm
    10922  // No need to call m_pBlockVectors[memTypeIndex][blockVectorTypeIndex]->CreateMinBlocks here,
    10923  // becase minBlockCount is 0.
    10924  m_pDedicatedAllocations[memTypeIndex] = vma_new(this, AllocationVectorType)(VmaStlAllocator<VmaAllocation>(GetAllocationCallbacks()));
    10925 
    10926  }
    10927 }
    10928 
    10929 VkResult VmaAllocator_T::Init(const VmaAllocatorCreateInfo* pCreateInfo)
    10930 {
    10931  VkResult res = VK_SUCCESS;
    10932 
    10933  if(pCreateInfo->pRecordSettings != VMA_NULL &&
    10934  !VmaStrIsEmpty(pCreateInfo->pRecordSettings->pFilePath))
    10935  {
    10936 #if VMA_RECORDING_ENABLED
    10937  m_pRecorder = vma_new(this, VmaRecorder)();
    10938  res = m_pRecorder->Init(*pCreateInfo->pRecordSettings, m_UseMutex);
    10939  if(res != VK_SUCCESS)
    10940  {
    10941  return res;
    10942  }
    10943  m_pRecorder->WriteConfiguration(
    10944  m_PhysicalDeviceProperties,
    10945  m_MemProps,
    10946  m_UseKhrDedicatedAllocation);
    10947  m_pRecorder->RecordCreateAllocator(GetCurrentFrameIndex());
    10948 #else
    10949  VMA_ASSERT(0 && "VmaAllocatorCreateInfo::pRecordSettings used, but not supported due to VMA_RECORDING_ENABLED not defined to 1.");
    10950  return VK_ERROR_FEATURE_NOT_PRESENT;
    10951 #endif
    10952  }
    10953 
    10954  return res;
    10955 }
    10956 
    10957 VmaAllocator_T::~VmaAllocator_T()
    10958 {
    10959 #if VMA_RECORDING_ENABLED
    10960  if(m_pRecorder != VMA_NULL)
    10961  {
    10962  m_pRecorder->RecordDestroyAllocator(GetCurrentFrameIndex());
    10963  vma_delete(this, m_pRecorder);
    10964  }
    10965 #endif
    10966 
    10967  VMA_ASSERT(m_Pools.empty());
    10968 
    10969  for(size_t i = GetMemoryTypeCount(); i--; )
    10970  {
    10971  vma_delete(this, m_pDedicatedAllocations[i]);
    10972  vma_delete(this, m_pBlockVectors[i]);
    10973  }
    10974 }
    10975 
    10976 void VmaAllocator_T::ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions)
    10977 {
    10978 #if VMA_STATIC_VULKAN_FUNCTIONS == 1
    10979  m_VulkanFunctions.vkGetPhysicalDeviceProperties = &vkGetPhysicalDeviceProperties;
    10980  m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties = &vkGetPhysicalDeviceMemoryProperties;
    10981  m_VulkanFunctions.vkAllocateMemory = &vkAllocateMemory;
    10982  m_VulkanFunctions.vkFreeMemory = &vkFreeMemory;
    10983  m_VulkanFunctions.vkMapMemory = &vkMapMemory;
    10984  m_VulkanFunctions.vkUnmapMemory = &vkUnmapMemory;
    10985  m_VulkanFunctions.vkFlushMappedMemoryRanges = &vkFlushMappedMemoryRanges;
    10986  m_VulkanFunctions.vkInvalidateMappedMemoryRanges = &vkInvalidateMappedMemoryRanges;
    10987  m_VulkanFunctions.vkBindBufferMemory = &vkBindBufferMemory;
    10988  m_VulkanFunctions.vkBindImageMemory = &vkBindImageMemory;
    10989  m_VulkanFunctions.vkGetBufferMemoryRequirements = &vkGetBufferMemoryRequirements;
    10990  m_VulkanFunctions.vkGetImageMemoryRequirements = &vkGetImageMemoryRequirements;
    10991  m_VulkanFunctions.vkCreateBuffer = &vkCreateBuffer;
    10992  m_VulkanFunctions.vkDestroyBuffer = &vkDestroyBuffer;
    10993  m_VulkanFunctions.vkCreateImage = &vkCreateImage;
    10994  m_VulkanFunctions.vkDestroyImage = &vkDestroyImage;
    10995 #if VMA_DEDICATED_ALLOCATION
    10996  if(m_UseKhrDedicatedAllocation)
    10997  {
    10998  m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR =
    10999  (PFN_vkGetBufferMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetBufferMemoryRequirements2KHR");
    11000  m_VulkanFunctions.vkGetImageMemoryRequirements2KHR =
    11001  (PFN_vkGetImageMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetImageMemoryRequirements2KHR");
    11002  }
    11003 #endif // #if VMA_DEDICATED_ALLOCATION
    11004 #endif // #if VMA_STATIC_VULKAN_FUNCTIONS == 1
    11005 
    11006 #define VMA_COPY_IF_NOT_NULL(funcName) \
    11007  if(pVulkanFunctions->funcName != VMA_NULL) m_VulkanFunctions.funcName = pVulkanFunctions->funcName;
    11008 
    11009  if(pVulkanFunctions != VMA_NULL)
    11010  {
    11011  VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceProperties);
    11012  VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties);
    11013  VMA_COPY_IF_NOT_NULL(vkAllocateMemory);
    11014  VMA_COPY_IF_NOT_NULL(vkFreeMemory);
    11015  VMA_COPY_IF_NOT_NULL(vkMapMemory);
    11016  VMA_COPY_IF_NOT_NULL(vkUnmapMemory);
    11017  VMA_COPY_IF_NOT_NULL(vkFlushMappedMemoryRanges);
    11018  VMA_COPY_IF_NOT_NULL(vkInvalidateMappedMemoryRanges);
    11019  VMA_COPY_IF_NOT_NULL(vkBindBufferMemory);
    11020  VMA_COPY_IF_NOT_NULL(vkBindImageMemory);
    11021  VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements);
    11022  VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements);
    11023  VMA_COPY_IF_NOT_NULL(vkCreateBuffer);
    11024  VMA_COPY_IF_NOT_NULL(vkDestroyBuffer);
    11025  VMA_COPY_IF_NOT_NULL(vkCreateImage);
    11026  VMA_COPY_IF_NOT_NULL(vkDestroyImage);
    11027 #if VMA_DEDICATED_ALLOCATION
    11028  VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements2KHR);
    11029  VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements2KHR);
    11030 #endif
    11031  }
    11032 
    11033 #undef VMA_COPY_IF_NOT_NULL
    11034 
    11035  // If these asserts are hit, you must either #define VMA_STATIC_VULKAN_FUNCTIONS 1
    11036  // or pass valid pointers as VmaAllocatorCreateInfo::pVulkanFunctions.
    11037  VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceProperties != VMA_NULL);
    11038  VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties != VMA_NULL);
    11039  VMA_ASSERT(m_VulkanFunctions.vkAllocateMemory != VMA_NULL);
    11040  VMA_ASSERT(m_VulkanFunctions.vkFreeMemory != VMA_NULL);
    11041  VMA_ASSERT(m_VulkanFunctions.vkMapMemory != VMA_NULL);
    11042  VMA_ASSERT(m_VulkanFunctions.vkUnmapMemory != VMA_NULL);
    11043  VMA_ASSERT(m_VulkanFunctions.vkFlushMappedMemoryRanges != VMA_NULL);
    11044  VMA_ASSERT(m_VulkanFunctions.vkInvalidateMappedMemoryRanges != VMA_NULL);
    11045  VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory != VMA_NULL);
    11046  VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory != VMA_NULL);
    11047  VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements != VMA_NULL);
    11048  VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements != VMA_NULL);
    11049  VMA_ASSERT(m_VulkanFunctions.vkCreateBuffer != VMA_NULL);
    11050  VMA_ASSERT(m_VulkanFunctions.vkDestroyBuffer != VMA_NULL);
    11051  VMA_ASSERT(m_VulkanFunctions.vkCreateImage != VMA_NULL);
    11052  VMA_ASSERT(m_VulkanFunctions.vkDestroyImage != VMA_NULL);
    11053 #if VMA_DEDICATED_ALLOCATION
    11054  if(m_UseKhrDedicatedAllocation)
    11055  {
    11056  VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR != VMA_NULL);
    11057  VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements2KHR != VMA_NULL);
    11058  }
    11059 #endif
    11060 }
    11061 
    11062 VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex)
    11063 {
    11064  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
    11065  const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size;
    11066  const bool isSmallHeap = heapSize <= VMA_SMALL_HEAP_MAX_SIZE;
    11067  return isSmallHeap ? (heapSize / 8) : m_PreferredLargeHeapBlockSize;
    11068 }
    11069 
    11070 VkResult VmaAllocator_T::AllocateMemoryOfType(
    11071  VkDeviceSize size,
    11072  VkDeviceSize alignment,
    11073  bool dedicatedAllocation,
    11074  VkBuffer dedicatedBuffer,
    11075  VkImage dedicatedImage,
    11076  const VmaAllocationCreateInfo& createInfo,
    11077  uint32_t memTypeIndex,
    11078  VmaSuballocationType suballocType,
    11079  VmaAllocation* pAllocation)
    11080 {
    11081  VMA_ASSERT(pAllocation != VMA_NULL);
    11082  VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, Size=%llu", memTypeIndex, vkMemReq.size);
    11083 
    11084  VmaAllocationCreateInfo finalCreateInfo = createInfo;
    11085 
    11086  // If memory type is not HOST_VISIBLE, disable MAPPED.
    11087  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 &&
    11088  (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    11089  {
    11090  finalCreateInfo.flags &= ~VMA_ALLOCATION_CREATE_MAPPED_BIT;
    11091  }
    11092 
    11093  VmaBlockVector* const blockVector = m_pBlockVectors[memTypeIndex];
    11094  VMA_ASSERT(blockVector);
    11095 
    11096  const VkDeviceSize preferredBlockSize = blockVector->GetPreferredBlockSize();
    11097  bool preferDedicatedMemory =
    11098  VMA_DEBUG_ALWAYS_DEDICATED_MEMORY ||
    11099  dedicatedAllocation ||
    11100  // Heuristics: Allocate dedicated memory if requested size if greater than half of preferred block size.
    11101  size > preferredBlockSize / 2;
    11102 
    11103  if(preferDedicatedMemory &&
    11104  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0 &&
    11105  finalCreateInfo.pool == VK_NULL_HANDLE)
    11106  {
    11107  finalCreateInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
    11108  }
    11109 
    11110  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0)
    11111  {
    11112  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11113  {
    11114  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11115  }
    11116  else
    11117  {
    11118  return AllocateDedicatedMemory(
    11119  size,
    11120  suballocType,
    11121  memTypeIndex,
    11122  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
    11123  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
    11124  finalCreateInfo.pUserData,
    11125  dedicatedBuffer,
    11126  dedicatedImage,
    11127  pAllocation);
    11128  }
    11129  }
    11130  else
    11131  {
    11132  VkResult res = blockVector->Allocate(
    11133  VK_NULL_HANDLE, // hCurrentPool
    11134  m_CurrentFrameIndex.load(),
    11135  size,
    11136  alignment,
    11137  finalCreateInfo,
    11138  suballocType,
    11139  pAllocation);
    11140  if(res == VK_SUCCESS)
    11141  {
    11142  return res;
    11143  }
    11144 
    11145  // 5. Try dedicated memory.
    11146  if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11147  {
    11148  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11149  }
    11150  else
    11151  {
    11152  res = AllocateDedicatedMemory(
    11153  size,
    11154  suballocType,
    11155  memTypeIndex,
    11156  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
    11157  (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
    11158  finalCreateInfo.pUserData,
    11159  dedicatedBuffer,
    11160  dedicatedImage,
    11161  pAllocation);
    11162  if(res == VK_SUCCESS)
    11163  {
    11164  // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here.
    11165  VMA_DEBUG_LOG(" Allocated as DedicatedMemory");
    11166  return VK_SUCCESS;
    11167  }
    11168  else
    11169  {
    11170  // Everything failed: Return error code.
    11171  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
    11172  return res;
    11173  }
    11174  }
    11175  }
    11176 }
    11177 
    11178 VkResult VmaAllocator_T::AllocateDedicatedMemory(
    11179  VkDeviceSize size,
    11180  VmaSuballocationType suballocType,
    11181  uint32_t memTypeIndex,
    11182  bool map,
    11183  bool isUserDataString,
    11184  void* pUserData,
    11185  VkBuffer dedicatedBuffer,
    11186  VkImage dedicatedImage,
    11187  VmaAllocation* pAllocation)
    11188 {
    11189  VMA_ASSERT(pAllocation);
    11190 
    11191  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
    11192  allocInfo.memoryTypeIndex = memTypeIndex;
    11193  allocInfo.allocationSize = size;
    11194 
    11195 #if VMA_DEDICATED_ALLOCATION
    11196  VkMemoryDedicatedAllocateInfoKHR dedicatedAllocInfo = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO_KHR };
    11197  if(m_UseKhrDedicatedAllocation)
    11198  {
    11199  if(dedicatedBuffer != VK_NULL_HANDLE)
    11200  {
    11201  VMA_ASSERT(dedicatedImage == VK_NULL_HANDLE);
    11202  dedicatedAllocInfo.buffer = dedicatedBuffer;
    11203  allocInfo.pNext = &dedicatedAllocInfo;
    11204  }
    11205  else if(dedicatedImage != VK_NULL_HANDLE)
    11206  {
    11207  dedicatedAllocInfo.image = dedicatedImage;
    11208  allocInfo.pNext = &dedicatedAllocInfo;
    11209  }
    11210  }
    11211 #endif // #if VMA_DEDICATED_ALLOCATION
    11212 
    11213  // Allocate VkDeviceMemory.
    11214  VkDeviceMemory hMemory = VK_NULL_HANDLE;
    11215  VkResult res = AllocateVulkanMemory(&allocInfo, &hMemory);
    11216  if(res < 0)
    11217  {
    11218  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
    11219  return res;
    11220  }
    11221 
    11222  void* pMappedData = VMA_NULL;
    11223  if(map)
    11224  {
    11225  res = (*m_VulkanFunctions.vkMapMemory)(
    11226  m_hDevice,
    11227  hMemory,
    11228  0,
    11229  VK_WHOLE_SIZE,
    11230  0,
    11231  &pMappedData);
    11232  if(res < 0)
    11233  {
    11234  VMA_DEBUG_LOG(" vkMapMemory FAILED");
    11235  FreeVulkanMemory(memTypeIndex, size, hMemory);
    11236  return res;
    11237  }
    11238  }
    11239 
    11240  *pAllocation = vma_new(this, VmaAllocation_T)(m_CurrentFrameIndex.load(), isUserDataString);
    11241  (*pAllocation)->InitDedicatedAllocation(memTypeIndex, hMemory, suballocType, pMappedData, size);
    11242  (*pAllocation)->SetUserData(this, pUserData);
    11243  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    11244  {
    11245  FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
    11246  }
    11247 
    11248  // Register it in m_pDedicatedAllocations.
    11249  {
    11250  VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    11251  AllocationVectorType* pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex];
    11252  VMA_ASSERT(pDedicatedAllocations);
    11253  VmaVectorInsertSorted<VmaPointerLess>(*pDedicatedAllocations, *pAllocation);
    11254  }
    11255 
    11256  VMA_DEBUG_LOG(" Allocated DedicatedMemory MemoryTypeIndex=#%u", memTypeIndex);
    11257 
    11258  return VK_SUCCESS;
    11259 }
    11260 
    11261 void VmaAllocator_T::GetBufferMemoryRequirements(
    11262  VkBuffer hBuffer,
    11263  VkMemoryRequirements& memReq,
    11264  bool& requiresDedicatedAllocation,
    11265  bool& prefersDedicatedAllocation) const
    11266 {
    11267 #if VMA_DEDICATED_ALLOCATION
    11268  if(m_UseKhrDedicatedAllocation)
    11269  {
    11270  VkBufferMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2_KHR };
    11271  memReqInfo.buffer = hBuffer;
    11272 
    11273  VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
    11274 
    11275  VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
    11276  memReq2.pNext = &memDedicatedReq;
    11277 
    11278  (*m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
    11279 
    11280  memReq = memReq2.memoryRequirements;
    11281  requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
    11282  prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE);
    11283  }
    11284  else
    11285 #endif // #if VMA_DEDICATED_ALLOCATION
    11286  {
    11287  (*m_VulkanFunctions.vkGetBufferMemoryRequirements)(m_hDevice, hBuffer, &memReq);
    11288  requiresDedicatedAllocation = false;
    11289  prefersDedicatedAllocation = false;
    11290  }
    11291 }
    11292 
    11293 void VmaAllocator_T::GetImageMemoryRequirements(
    11294  VkImage hImage,
    11295  VkMemoryRequirements& memReq,
    11296  bool& requiresDedicatedAllocation,
    11297  bool& prefersDedicatedAllocation) const
    11298 {
    11299 #if VMA_DEDICATED_ALLOCATION
    11300  if(m_UseKhrDedicatedAllocation)
    11301  {
    11302  VkImageMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2_KHR };
    11303  memReqInfo.image = hImage;
    11304 
    11305  VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
    11306 
    11307  VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
    11308  memReq2.pNext = &memDedicatedReq;
    11309 
    11310  (*m_VulkanFunctions.vkGetImageMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
    11311 
    11312  memReq = memReq2.memoryRequirements;
    11313  requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
    11314  prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE);
    11315  }
    11316  else
    11317 #endif // #if VMA_DEDICATED_ALLOCATION
    11318  {
    11319  (*m_VulkanFunctions.vkGetImageMemoryRequirements)(m_hDevice, hImage, &memReq);
    11320  requiresDedicatedAllocation = false;
    11321  prefersDedicatedAllocation = false;
    11322  }
    11323 }
    11324 
    11325 VkResult VmaAllocator_T::AllocateMemory(
    11326  const VkMemoryRequirements& vkMemReq,
    11327  bool requiresDedicatedAllocation,
    11328  bool prefersDedicatedAllocation,
    11329  VkBuffer dedicatedBuffer,
    11330  VkImage dedicatedImage,
    11331  const VmaAllocationCreateInfo& createInfo,
    11332  VmaSuballocationType suballocType,
    11333  VmaAllocation* pAllocation)
    11334 {
    11335  if((createInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0 &&
    11336  (createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11337  {
    11338  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT together with VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT makes no sense.");
    11339  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11340  }
    11341  if((createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 &&
    11342  (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0)
    11343  {
    11344  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_MAPPED_BIT together with VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT is invalid.");
    11345  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11346  }
    11347  if(requiresDedicatedAllocation)
    11348  {
    11349  if((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
    11350  {
    11351  VMA_ASSERT(0 && "VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT specified while dedicated allocation is required.");
    11352  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11353  }
    11354  if(createInfo.pool != VK_NULL_HANDLE)
    11355  {
    11356  VMA_ASSERT(0 && "Pool specified while dedicated allocation is required.");
    11357  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11358  }
    11359  }
    11360  if((createInfo.pool != VK_NULL_HANDLE) &&
    11361  ((createInfo.flags & (VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT)) != 0))
    11362  {
    11363  VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT when pool != null is invalid.");
    11364  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11365  }
    11366 
    11367  if(createInfo.pool != VK_NULL_HANDLE)
    11368  {
    11369  const VkDeviceSize alignmentForPool = VMA_MAX(
    11370  vkMemReq.alignment,
    11371  GetMemoryTypeMinAlignment(createInfo.pool->m_BlockVector.GetMemoryTypeIndex()));
    11372  return createInfo.pool->m_BlockVector.Allocate(
    11373  createInfo.pool,
    11374  m_CurrentFrameIndex.load(),
    11375  vkMemReq.size,
    11376  alignmentForPool,
    11377  createInfo,
    11378  suballocType,
    11379  pAllocation);
    11380  }
    11381  else
    11382  {
    11383  // Bit mask of memory Vulkan types acceptable for this allocation.
    11384  uint32_t memoryTypeBits = vkMemReq.memoryTypeBits;
    11385  uint32_t memTypeIndex = UINT32_MAX;
    11386  VkResult res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &createInfo, &memTypeIndex);
    11387  if(res == VK_SUCCESS)
    11388  {
    11389  VkDeviceSize alignmentForMemType = VMA_MAX(
    11390  vkMemReq.alignment,
    11391  GetMemoryTypeMinAlignment(memTypeIndex));
    11392 
    11393  res = AllocateMemoryOfType(
    11394  vkMemReq.size,
    11395  alignmentForMemType,
    11396  requiresDedicatedAllocation || prefersDedicatedAllocation,
    11397  dedicatedBuffer,
    11398  dedicatedImage,
    11399  createInfo,
    11400  memTypeIndex,
    11401  suballocType,
    11402  pAllocation);
    11403  // Succeeded on first try.
    11404  if(res == VK_SUCCESS)
    11405  {
    11406  return res;
    11407  }
    11408  // Allocation from this memory type failed. Try other compatible memory types.
    11409  else
    11410  {
    11411  for(;;)
    11412  {
    11413  // Remove old memTypeIndex from list of possibilities.
    11414  memoryTypeBits &= ~(1u << memTypeIndex);
    11415  // Find alternative memTypeIndex.
    11416  res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &createInfo, &memTypeIndex);
    11417  if(res == VK_SUCCESS)
    11418  {
    11419  alignmentForMemType = VMA_MAX(
    11420  vkMemReq.alignment,
    11421  GetMemoryTypeMinAlignment(memTypeIndex));
    11422 
    11423  res = AllocateMemoryOfType(
    11424  vkMemReq.size,
    11425  alignmentForMemType,
    11426  requiresDedicatedAllocation || prefersDedicatedAllocation,
    11427  dedicatedBuffer,
    11428  dedicatedImage,
    11429  createInfo,
    11430  memTypeIndex,
    11431  suballocType,
    11432  pAllocation);
    11433  // Allocation from this alternative memory type succeeded.
    11434  if(res == VK_SUCCESS)
    11435  {
    11436  return res;
    11437  }
    11438  // else: Allocation from this memory type failed. Try next one - next loop iteration.
    11439  }
    11440  // No other matching memory type index could be found.
    11441  else
    11442  {
    11443  // Not returning res, which is VK_ERROR_FEATURE_NOT_PRESENT, because we already failed to allocate once.
    11444  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11445  }
    11446  }
    11447  }
    11448  }
    11449  // Can't find any single memory type maching requirements. res is VK_ERROR_FEATURE_NOT_PRESENT.
    11450  else
    11451  return res;
    11452  }
    11453 }
    11454 
    11455 void VmaAllocator_T::FreeMemory(const VmaAllocation allocation)
    11456 {
    11457  VMA_ASSERT(allocation);
    11458 
    11459  if(allocation->CanBecomeLost() == false ||
    11460  allocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)
    11461  {
    11462  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
    11463  {
    11464  FillAllocation(allocation, VMA_ALLOCATION_FILL_PATTERN_DESTROYED);
    11465  }
    11466 
    11467  switch(allocation->GetType())
    11468  {
    11469  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    11470  {
    11471  VmaBlockVector* pBlockVector = VMA_NULL;
    11472  VmaPool hPool = allocation->GetPool();
    11473  if(hPool != VK_NULL_HANDLE)
    11474  {
    11475  pBlockVector = &hPool->m_BlockVector;
    11476  }
    11477  else
    11478  {
    11479  const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
    11480  pBlockVector = m_pBlockVectors[memTypeIndex];
    11481  }
    11482  pBlockVector->Free(allocation);
    11483  }
    11484  break;
    11485  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    11486  FreeDedicatedMemory(allocation);
    11487  break;
    11488  default:
    11489  VMA_ASSERT(0);
    11490  }
    11491  }
    11492 
    11493  allocation->SetUserData(this, VMA_NULL);
    11494  vma_delete(this, allocation);
    11495 }
    11496 
    11497 void VmaAllocator_T::CalculateStats(VmaStats* pStats)
    11498 {
    11499  // Initialize.
    11500  InitStatInfo(pStats->total);
    11501  for(size_t i = 0; i < VK_MAX_MEMORY_TYPES; ++i)
    11502  InitStatInfo(pStats->memoryType[i]);
    11503  for(size_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
    11504  InitStatInfo(pStats->memoryHeap[i]);
    11505 
    11506  // Process default pools.
    11507  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11508  {
    11509  VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
    11510  VMA_ASSERT(pBlockVector);
    11511  pBlockVector->AddStats(pStats);
    11512  }
    11513 
    11514  // Process custom pools.
    11515  {
    11516  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11517  for(size_t poolIndex = 0, poolCount = m_Pools.size(); poolIndex < poolCount; ++poolIndex)
    11518  {
    11519  m_Pools[poolIndex]->m_BlockVector.AddStats(pStats);
    11520  }
    11521  }
    11522 
    11523  // Process dedicated allocations.
    11524  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11525  {
    11526  const uint32_t memHeapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
    11527  VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    11528  AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex];
    11529  VMA_ASSERT(pDedicatedAllocVector);
    11530  for(size_t allocIndex = 0, allocCount = pDedicatedAllocVector->size(); allocIndex < allocCount; ++allocIndex)
    11531  {
    11532  VmaStatInfo allocationStatInfo;
    11533  (*pDedicatedAllocVector)[allocIndex]->DedicatedAllocCalcStatsInfo(allocationStatInfo);
    11534  VmaAddStatInfo(pStats->total, allocationStatInfo);
    11535  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
    11536  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
    11537  }
    11538  }
    11539 
    11540  // Postprocess.
    11541  VmaPostprocessCalcStatInfo(pStats->total);
    11542  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
    11543  VmaPostprocessCalcStatInfo(pStats->memoryType[i]);
    11544  for(size_t i = 0; i < GetMemoryHeapCount(); ++i)
    11545  VmaPostprocessCalcStatInfo(pStats->memoryHeap[i]);
    11546 }
    11547 
    11548 static const uint32_t VMA_VENDOR_ID_AMD = 4098;
    11549 
    11550 VkResult VmaAllocator_T::Defragment(
    11551  VmaAllocation* pAllocations,
    11552  size_t allocationCount,
    11553  VkBool32* pAllocationsChanged,
    11554  const VmaDefragmentationInfo* pDefragmentationInfo,
    11555  VmaDefragmentationStats* pDefragmentationStats)
    11556 {
    11557  if(pAllocationsChanged != VMA_NULL)
    11558  {
    11559  memset(pAllocationsChanged, 0, sizeof(*pAllocationsChanged));
    11560  }
    11561  if(pDefragmentationStats != VMA_NULL)
    11562  {
    11563  memset(pDefragmentationStats, 0, sizeof(*pDefragmentationStats));
    11564  }
    11565 
    11566  const uint32_t currentFrameIndex = m_CurrentFrameIndex.load();
    11567 
    11568  VmaMutexLock poolsLock(m_PoolsMutex, m_UseMutex);
    11569 
    11570  const size_t poolCount = m_Pools.size();
    11571 
    11572  // Dispatch pAllocations among defragmentators. Create them in BlockVectors when necessary.
    11573  for(size_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
    11574  {
    11575  VmaAllocation hAlloc = pAllocations[allocIndex];
    11576  VMA_ASSERT(hAlloc);
    11577  const uint32_t memTypeIndex = hAlloc->GetMemoryTypeIndex();
    11578  // DedicatedAlloc cannot be defragmented.
    11579  const VkMemoryPropertyFlags requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    11580  if((hAlloc->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK) &&
    11581  // Only HOST_VISIBLE and HOST_COHERENT memory types can be defragmented.
    11582  ((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags) &&
    11583  // Lost allocation cannot be defragmented.
    11584  (hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST))
    11585  {
    11586  VmaBlockVector* pAllocBlockVector = VMA_NULL;
    11587 
    11588  const VmaPool hAllocPool = hAlloc->GetPool();
    11589  // This allocation belongs to custom pool.
    11590  if(hAllocPool != VK_NULL_HANDLE)
    11591  {
    11592  // Pools with linear algorithm are not defragmented.
    11593  if(!hAllocPool->m_BlockVector.UsesLinearAlgorithm())
    11594  {
    11595  pAllocBlockVector = &hAllocPool->m_BlockVector;
    11596  }
    11597  }
    11598  // This allocation belongs to general pool.
    11599  else
    11600  {
    11601  pAllocBlockVector = m_pBlockVectors[memTypeIndex];
    11602  }
    11603 
    11604  if(pAllocBlockVector != VMA_NULL)
    11605  {
    11606  VmaDefragmentator* const pDefragmentator =
    11607  pAllocBlockVector->EnsureDefragmentator(this, currentFrameIndex);
    11608  VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ?
    11609  &pAllocationsChanged[allocIndex] : VMA_NULL;
    11610  pDefragmentator->AddAllocation(hAlloc, pChanged);
    11611  }
    11612  }
    11613  }
    11614 
    11615  VkResult result = VK_SUCCESS;
    11616 
    11617  // ======== Main processing.
    11618 
    11619  VkDeviceSize maxBytesToMove = SIZE_MAX;
    11620  uint32_t maxAllocationsToMove = UINT32_MAX;
    11621  if(pDefragmentationInfo != VMA_NULL)
    11622  {
    11623  maxBytesToMove = pDefragmentationInfo->maxBytesToMove;
    11624  maxAllocationsToMove = pDefragmentationInfo->maxAllocationsToMove;
    11625  }
    11626 
    11627  // Process standard memory.
    11628  for(uint32_t memTypeIndex = 0;
    11629  (memTypeIndex < GetMemoryTypeCount()) && (result == VK_SUCCESS);
    11630  ++memTypeIndex)
    11631  {
    11632  // Only HOST_VISIBLE memory types can be defragmented.
    11633  if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    11634  {
    11635  result = m_pBlockVectors[memTypeIndex]->Defragment(
    11636  pDefragmentationStats,
    11637  maxBytesToMove,
    11638  maxAllocationsToMove);
    11639  }
    11640  }
    11641 
    11642  // Process custom pools.
    11643  for(size_t poolIndex = 0; (poolIndex < poolCount) && (result == VK_SUCCESS); ++poolIndex)
    11644  {
    11645  result = m_Pools[poolIndex]->m_BlockVector.Defragment(
    11646  pDefragmentationStats,
    11647  maxBytesToMove,
    11648  maxAllocationsToMove);
    11649  }
    11650 
    11651  // ======== Destroy defragmentators.
    11652 
    11653  // Process custom pools.
    11654  for(size_t poolIndex = poolCount; poolIndex--; )
    11655  {
    11656  m_Pools[poolIndex]->m_BlockVector.DestroyDefragmentator();
    11657  }
    11658 
    11659  // Process standard memory.
    11660  for(uint32_t memTypeIndex = GetMemoryTypeCount(); memTypeIndex--; )
    11661  {
    11662  if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    11663  {
    11664  m_pBlockVectors[memTypeIndex]->DestroyDefragmentator();
    11665  }
    11666  }
    11667 
    11668  return result;
    11669 }
    11670 
    11671 void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo)
    11672 {
    11673  if(hAllocation->CanBecomeLost())
    11674  {
    11675  /*
    11676  Warning: This is a carefully designed algorithm.
    11677  Do not modify unless you really know what you're doing :)
    11678  */
    11679  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11680  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11681  for(;;)
    11682  {
    11683  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    11684  {
    11685  pAllocationInfo->memoryType = UINT32_MAX;
    11686  pAllocationInfo->deviceMemory = VK_NULL_HANDLE;
    11687  pAllocationInfo->offset = 0;
    11688  pAllocationInfo->size = hAllocation->GetSize();
    11689  pAllocationInfo->pMappedData = VMA_NULL;
    11690  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11691  return;
    11692  }
    11693  else if(localLastUseFrameIndex == localCurrFrameIndex)
    11694  {
    11695  pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex();
    11696  pAllocationInfo->deviceMemory = hAllocation->GetMemory();
    11697  pAllocationInfo->offset = hAllocation->GetOffset();
    11698  pAllocationInfo->size = hAllocation->GetSize();
    11699  pAllocationInfo->pMappedData = VMA_NULL;
    11700  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11701  return;
    11702  }
    11703  else // Last use time earlier than current time.
    11704  {
    11705  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11706  {
    11707  localLastUseFrameIndex = localCurrFrameIndex;
    11708  }
    11709  }
    11710  }
    11711  }
    11712  else
    11713  {
    11714 #if VMA_STATS_STRING_ENABLED
    11715  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11716  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11717  for(;;)
    11718  {
    11719  VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST);
    11720  if(localLastUseFrameIndex == localCurrFrameIndex)
    11721  {
    11722  break;
    11723  }
    11724  else // Last use time earlier than current time.
    11725  {
    11726  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11727  {
    11728  localLastUseFrameIndex = localCurrFrameIndex;
    11729  }
    11730  }
    11731  }
    11732 #endif
    11733 
    11734  pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex();
    11735  pAllocationInfo->deviceMemory = hAllocation->GetMemory();
    11736  pAllocationInfo->offset = hAllocation->GetOffset();
    11737  pAllocationInfo->size = hAllocation->GetSize();
    11738  pAllocationInfo->pMappedData = hAllocation->GetMappedData();
    11739  pAllocationInfo->pUserData = hAllocation->GetUserData();
    11740  }
    11741 }
    11742 
    11743 bool VmaAllocator_T::TouchAllocation(VmaAllocation hAllocation)
    11744 {
    11745  // This is a stripped-down version of VmaAllocator_T::GetAllocationInfo.
    11746  if(hAllocation->CanBecomeLost())
    11747  {
    11748  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11749  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11750  for(;;)
    11751  {
    11752  if(localLastUseFrameIndex == VMA_FRAME_INDEX_LOST)
    11753  {
    11754  return false;
    11755  }
    11756  else if(localLastUseFrameIndex == localCurrFrameIndex)
    11757  {
    11758  return true;
    11759  }
    11760  else // Last use time earlier than current time.
    11761  {
    11762  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11763  {
    11764  localLastUseFrameIndex = localCurrFrameIndex;
    11765  }
    11766  }
    11767  }
    11768  }
    11769  else
    11770  {
    11771 #if VMA_STATS_STRING_ENABLED
    11772  uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load();
    11773  uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex();
    11774  for(;;)
    11775  {
    11776  VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST);
    11777  if(localLastUseFrameIndex == localCurrFrameIndex)
    11778  {
    11779  break;
    11780  }
    11781  else // Last use time earlier than current time.
    11782  {
    11783  if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex))
    11784  {
    11785  localLastUseFrameIndex = localCurrFrameIndex;
    11786  }
    11787  }
    11788  }
    11789 #endif
    11790 
    11791  return true;
    11792  }
    11793 }
    11794 
    11795 VkResult VmaAllocator_T::CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool)
    11796 {
    11797  VMA_DEBUG_LOG(" CreatePool: MemoryTypeIndex=%u, flags=%u", pCreateInfo->memoryTypeIndex, pCreateInfo->flags);
    11798 
    11799  const bool isLinearAlgorithm = (pCreateInfo->flags & VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) != 0;
    11800 
    11801  VmaPoolCreateInfo newCreateInfo = *pCreateInfo;
    11802 
    11803  if(newCreateInfo.maxBlockCount == 0)
    11804  {
    11805  newCreateInfo.maxBlockCount = isLinearAlgorithm ? 1 : SIZE_MAX;
    11806  }
    11807  if(newCreateInfo.minBlockCount > newCreateInfo.maxBlockCount ||
    11808  isLinearAlgorithm && newCreateInfo.maxBlockCount > 1)
    11809  {
    11810  return VK_ERROR_INITIALIZATION_FAILED;
    11811  }
    11812  if(newCreateInfo.blockSize == 0)
    11813  {
    11814  newCreateInfo.blockSize = CalcPreferredBlockSize(newCreateInfo.memoryTypeIndex);
    11815  }
    11816 
    11817  *pPool = vma_new(this, VmaPool_T)(this, newCreateInfo);
    11818 
    11819  VkResult res = (*pPool)->m_BlockVector.CreateMinBlocks();
    11820  if(res != VK_SUCCESS)
    11821  {
    11822  vma_delete(this, *pPool);
    11823  *pPool = VMA_NULL;
    11824  return res;
    11825  }
    11826 
    11827  // Add to m_Pools.
    11828  {
    11829  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11830  (*pPool)->SetId(m_NextPoolId++);
    11831  VmaVectorInsertSorted<VmaPointerLess>(m_Pools, *pPool);
    11832  }
    11833 
    11834  return VK_SUCCESS;
    11835 }
    11836 
    11837 void VmaAllocator_T::DestroyPool(VmaPool pool)
    11838 {
    11839  // Remove from m_Pools.
    11840  {
    11841  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11842  bool success = VmaVectorRemoveSorted<VmaPointerLess>(m_Pools, pool);
    11843  VMA_ASSERT(success && "Pool not found in Allocator.");
    11844  }
    11845 
    11846  vma_delete(this, pool);
    11847 }
    11848 
    11849 void VmaAllocator_T::GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats)
    11850 {
    11851  pool->m_BlockVector.GetPoolStats(pPoolStats);
    11852 }
    11853 
    11854 void VmaAllocator_T::SetCurrentFrameIndex(uint32_t frameIndex)
    11855 {
    11856  m_CurrentFrameIndex.store(frameIndex);
    11857 }
    11858 
    11859 void VmaAllocator_T::MakePoolAllocationsLost(
    11860  VmaPool hPool,
    11861  size_t* pLostAllocationCount)
    11862 {
    11863  hPool->m_BlockVector.MakePoolAllocationsLost(
    11864  m_CurrentFrameIndex.load(),
    11865  pLostAllocationCount);
    11866 }
    11867 
    11868 VkResult VmaAllocator_T::CheckPoolCorruption(VmaPool hPool)
    11869 {
    11870  return hPool->m_BlockVector.CheckCorruption();
    11871 }
    11872 
    11873 VkResult VmaAllocator_T::CheckCorruption(uint32_t memoryTypeBits)
    11874 {
    11875  VkResult finalRes = VK_ERROR_FEATURE_NOT_PRESENT;
    11876 
    11877  // Process default pools.
    11878  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    11879  {
    11880  if(((1u << memTypeIndex) & memoryTypeBits) != 0)
    11881  {
    11882  VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
    11883  VMA_ASSERT(pBlockVector);
    11884  VkResult localRes = pBlockVector->CheckCorruption();
    11885  switch(localRes)
    11886  {
    11887  case VK_ERROR_FEATURE_NOT_PRESENT:
    11888  break;
    11889  case VK_SUCCESS:
    11890  finalRes = VK_SUCCESS;
    11891  break;
    11892  default:
    11893  return localRes;
    11894  }
    11895  }
    11896  }
    11897 
    11898  // Process custom pools.
    11899  {
    11900  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    11901  for(size_t poolIndex = 0, poolCount = m_Pools.size(); poolIndex < poolCount; ++poolIndex)
    11902  {
    11903  if(((1u << m_Pools[poolIndex]->m_BlockVector.GetMemoryTypeIndex()) & memoryTypeBits) != 0)
    11904  {
    11905  VkResult localRes = m_Pools[poolIndex]->m_BlockVector.CheckCorruption();
    11906  switch(localRes)
    11907  {
    11908  case VK_ERROR_FEATURE_NOT_PRESENT:
    11909  break;
    11910  case VK_SUCCESS:
    11911  finalRes = VK_SUCCESS;
    11912  break;
    11913  default:
    11914  return localRes;
    11915  }
    11916  }
    11917  }
    11918  }
    11919 
    11920  return finalRes;
    11921 }
    11922 
    11923 void VmaAllocator_T::CreateLostAllocation(VmaAllocation* pAllocation)
    11924 {
    11925  *pAllocation = vma_new(this, VmaAllocation_T)(VMA_FRAME_INDEX_LOST, false);
    11926  (*pAllocation)->InitLost();
    11927 }
    11928 
    11929 VkResult VmaAllocator_T::AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory)
    11930 {
    11931  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(pAllocateInfo->memoryTypeIndex);
    11932 
    11933  VkResult res;
    11934  if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE)
    11935  {
    11936  VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex);
    11937  if(m_HeapSizeLimit[heapIndex] >= pAllocateInfo->allocationSize)
    11938  {
    11939  res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory);
    11940  if(res == VK_SUCCESS)
    11941  {
    11942  m_HeapSizeLimit[heapIndex] -= pAllocateInfo->allocationSize;
    11943  }
    11944  }
    11945  else
    11946  {
    11947  res = VK_ERROR_OUT_OF_DEVICE_MEMORY;
    11948  }
    11949  }
    11950  else
    11951  {
    11952  res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory);
    11953  }
    11954 
    11955  if(res == VK_SUCCESS && m_DeviceMemoryCallbacks.pfnAllocate != VMA_NULL)
    11956  {
    11957  (*m_DeviceMemoryCallbacks.pfnAllocate)(this, pAllocateInfo->memoryTypeIndex, *pMemory, pAllocateInfo->allocationSize);
    11958  }
    11959 
    11960  return res;
    11961 }
    11962 
    11963 void VmaAllocator_T::FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory)
    11964 {
    11965  if(m_DeviceMemoryCallbacks.pfnFree != VMA_NULL)
    11966  {
    11967  (*m_DeviceMemoryCallbacks.pfnFree)(this, memoryType, hMemory, size);
    11968  }
    11969 
    11970  (*m_VulkanFunctions.vkFreeMemory)(m_hDevice, hMemory, GetAllocationCallbacks());
    11971 
    11972  const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memoryType);
    11973  if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE)
    11974  {
    11975  VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex);
    11976  m_HeapSizeLimit[heapIndex] += size;
    11977  }
    11978 }
    11979 
    11980 VkResult VmaAllocator_T::Map(VmaAllocation hAllocation, void** ppData)
    11981 {
    11982  if(hAllocation->CanBecomeLost())
    11983  {
    11984  return VK_ERROR_MEMORY_MAP_FAILED;
    11985  }
    11986 
    11987  switch(hAllocation->GetType())
    11988  {
    11989  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    11990  {
    11991  VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
    11992  char *pBytes = VMA_NULL;
    11993  VkResult res = pBlock->Map(this, 1, (void**)&pBytes);
    11994  if(res == VK_SUCCESS)
    11995  {
    11996  *ppData = pBytes + (ptrdiff_t)hAllocation->GetOffset();
    11997  hAllocation->BlockAllocMap();
    11998  }
    11999  return res;
    12000  }
    12001  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12002  return hAllocation->DedicatedAllocMap(this, ppData);
    12003  default:
    12004  VMA_ASSERT(0);
    12005  return VK_ERROR_MEMORY_MAP_FAILED;
    12006  }
    12007 }
    12008 
    12009 void VmaAllocator_T::Unmap(VmaAllocation hAllocation)
    12010 {
    12011  switch(hAllocation->GetType())
    12012  {
    12013  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12014  {
    12015  VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
    12016  hAllocation->BlockAllocUnmap();
    12017  pBlock->Unmap(this, 1);
    12018  }
    12019  break;
    12020  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12021  hAllocation->DedicatedAllocUnmap(this);
    12022  break;
    12023  default:
    12024  VMA_ASSERT(0);
    12025  }
    12026 }
    12027 
    12028 VkResult VmaAllocator_T::BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer)
    12029 {
    12030  VkResult res = VK_SUCCESS;
    12031  switch(hAllocation->GetType())
    12032  {
    12033  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12034  res = GetVulkanFunctions().vkBindBufferMemory(
    12035  m_hDevice,
    12036  hBuffer,
    12037  hAllocation->GetMemory(),
    12038  0); //memoryOffset
    12039  break;
    12040  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12041  {
    12042  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    12043  VMA_ASSERT(pBlock && "Binding buffer to allocation that doesn't belong to any block. Is the allocation lost?");
    12044  res = pBlock->BindBufferMemory(this, hAllocation, hBuffer);
    12045  break;
    12046  }
    12047  default:
    12048  VMA_ASSERT(0);
    12049  }
    12050  return res;
    12051 }
    12052 
    12053 VkResult VmaAllocator_T::BindImageMemory(VmaAllocation hAllocation, VkImage hImage)
    12054 {
    12055  VkResult res = VK_SUCCESS;
    12056  switch(hAllocation->GetType())
    12057  {
    12058  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12059  res = GetVulkanFunctions().vkBindImageMemory(
    12060  m_hDevice,
    12061  hImage,
    12062  hAllocation->GetMemory(),
    12063  0); //memoryOffset
    12064  break;
    12065  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12066  {
    12067  VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
    12068  VMA_ASSERT(pBlock && "Binding image to allocation that doesn't belong to any block. Is the allocation lost?");
    12069  res = pBlock->BindImageMemory(this, hAllocation, hImage);
    12070  break;
    12071  }
    12072  default:
    12073  VMA_ASSERT(0);
    12074  }
    12075  return res;
    12076 }
    12077 
    12078 void VmaAllocator_T::FlushOrInvalidateAllocation(
    12079  VmaAllocation hAllocation,
    12080  VkDeviceSize offset, VkDeviceSize size,
    12081  VMA_CACHE_OPERATION op)
    12082 {
    12083  const uint32_t memTypeIndex = hAllocation->GetMemoryTypeIndex();
    12084  if(size > 0 && IsMemoryTypeNonCoherent(memTypeIndex))
    12085  {
    12086  const VkDeviceSize allocationSize = hAllocation->GetSize();
    12087  VMA_ASSERT(offset <= allocationSize);
    12088 
    12089  const VkDeviceSize nonCoherentAtomSize = m_PhysicalDeviceProperties.limits.nonCoherentAtomSize;
    12090 
    12091  VkMappedMemoryRange memRange = { VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE };
    12092  memRange.memory = hAllocation->GetMemory();
    12093 
    12094  switch(hAllocation->GetType())
    12095  {
    12096  case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
    12097  memRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
    12098  if(size == VK_WHOLE_SIZE)
    12099  {
    12100  memRange.size = allocationSize - memRange.offset;
    12101  }
    12102  else
    12103  {
    12104  VMA_ASSERT(offset + size <= allocationSize);
    12105  memRange.size = VMA_MIN(
    12106  VmaAlignUp(size + (offset - memRange.offset), nonCoherentAtomSize),
    12107  allocationSize - memRange.offset);
    12108  }
    12109  break;
    12110 
    12111  case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
    12112  {
    12113  // 1. Still within this allocation.
    12114  memRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
    12115  if(size == VK_WHOLE_SIZE)
    12116  {
    12117  size = allocationSize - offset;
    12118  }
    12119  else
    12120  {
    12121  VMA_ASSERT(offset + size <= allocationSize);
    12122  }
    12123  memRange.size = VmaAlignUp(size + (offset - memRange.offset), nonCoherentAtomSize);
    12124 
    12125  // 2. Adjust to whole block.
    12126  const VkDeviceSize allocationOffset = hAllocation->GetOffset();
    12127  VMA_ASSERT(allocationOffset % nonCoherentAtomSize == 0);
    12128  const VkDeviceSize blockSize = hAllocation->GetBlock()->m_pMetadata->GetSize();
    12129  memRange.offset += allocationOffset;
    12130  memRange.size = VMA_MIN(memRange.size, blockSize - memRange.offset);
    12131 
    12132  break;
    12133  }
    12134 
    12135  default:
    12136  VMA_ASSERT(0);
    12137  }
    12138 
    12139  switch(op)
    12140  {
    12141  case VMA_CACHE_FLUSH:
    12142  (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, 1, &memRange);
    12143  break;
    12144  case VMA_CACHE_INVALIDATE:
    12145  (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, 1, &memRange);
    12146  break;
    12147  default:
    12148  VMA_ASSERT(0);
    12149  }
    12150  }
    12151  // else: Just ignore this call.
    12152 }
    12153 
    12154 void VmaAllocator_T::FreeDedicatedMemory(VmaAllocation allocation)
    12155 {
    12156  VMA_ASSERT(allocation && allocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
    12157 
    12158  const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
    12159  {
    12160  VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    12161  AllocationVectorType* const pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex];
    12162  VMA_ASSERT(pDedicatedAllocations);
    12163  bool success = VmaVectorRemoveSorted<VmaPointerLess>(*pDedicatedAllocations, allocation);
    12164  VMA_ASSERT(success);
    12165  }
    12166 
    12167  VkDeviceMemory hMemory = allocation->GetMemory();
    12168 
    12169  if(allocation->GetMappedData() != VMA_NULL)
    12170  {
    12171  (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory);
    12172  }
    12173 
    12174  FreeVulkanMemory(memTypeIndex, allocation->GetSize(), hMemory);
    12175 
    12176  VMA_DEBUG_LOG(" Freed DedicatedMemory MemoryTypeIndex=%u", memTypeIndex);
    12177 }
    12178 
    12179 void VmaAllocator_T::FillAllocation(const VmaAllocation hAllocation, uint8_t pattern)
    12180 {
    12181  if(VMA_DEBUG_INITIALIZE_ALLOCATIONS &&
    12182  !hAllocation->CanBecomeLost() &&
    12183  (m_MemProps.memoryTypes[hAllocation->GetMemoryTypeIndex()].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    12184  {
    12185  void* pData = VMA_NULL;
    12186  VkResult res = Map(hAllocation, &pData);
    12187  if(res == VK_SUCCESS)
    12188  {
    12189  memset(pData, (int)pattern, (size_t)hAllocation->GetSize());
    12190  FlushOrInvalidateAllocation(hAllocation, 0, VK_WHOLE_SIZE, VMA_CACHE_FLUSH);
    12191  Unmap(hAllocation);
    12192  }
    12193  else
    12194  {
    12195  VMA_ASSERT(0 && "VMA_DEBUG_INITIALIZE_ALLOCATIONS is enabled, but couldn't map memory to fill allocation.");
    12196  }
    12197  }
    12198 }
    12199 
    12200 #if VMA_STATS_STRING_ENABLED
    12201 
    12202 void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json)
    12203 {
    12204  bool dedicatedAllocationsStarted = false;
    12205  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    12206  {
    12207  VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex);
    12208  AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex];
    12209  VMA_ASSERT(pDedicatedAllocVector);
    12210  if(pDedicatedAllocVector->empty() == false)
    12211  {
    12212  if(dedicatedAllocationsStarted == false)
    12213  {
    12214  dedicatedAllocationsStarted = true;
    12215  json.WriteString("DedicatedAllocations");
    12216  json.BeginObject();
    12217  }
    12218 
    12219  json.BeginString("Type ");
    12220  json.ContinueString(memTypeIndex);
    12221  json.EndString();
    12222 
    12223  json.BeginArray();
    12224 
    12225  for(size_t i = 0; i < pDedicatedAllocVector->size(); ++i)
    12226  {
    12227  json.BeginObject(true);
    12228  const VmaAllocation hAlloc = (*pDedicatedAllocVector)[i];
    12229  hAlloc->PrintParameters(json);
    12230  json.EndObject();
    12231  }
    12232 
    12233  json.EndArray();
    12234  }
    12235  }
    12236  if(dedicatedAllocationsStarted)
    12237  {
    12238  json.EndObject();
    12239  }
    12240 
    12241  {
    12242  bool allocationsStarted = false;
    12243  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
    12244  {
    12245  if(m_pBlockVectors[memTypeIndex]->IsEmpty() == false)
    12246  {
    12247  if(allocationsStarted == false)
    12248  {
    12249  allocationsStarted = true;
    12250  json.WriteString("DefaultPools");
    12251  json.BeginObject();
    12252  }
    12253 
    12254  json.BeginString("Type ");
    12255  json.ContinueString(memTypeIndex);
    12256  json.EndString();
    12257 
    12258  m_pBlockVectors[memTypeIndex]->PrintDetailedMap(json);
    12259  }
    12260  }
    12261  if(allocationsStarted)
    12262  {
    12263  json.EndObject();
    12264  }
    12265  }
    12266 
    12267  // Custom pools
    12268  {
    12269  VmaMutexLock lock(m_PoolsMutex, m_UseMutex);
    12270  const size_t poolCount = m_Pools.size();
    12271  if(poolCount > 0)
    12272  {
    12273  json.WriteString("Pools");
    12274  json.BeginObject();
    12275  for(size_t poolIndex = 0; poolIndex < poolCount; ++poolIndex)
    12276  {
    12277  json.BeginString();
    12278  json.ContinueString(m_Pools[poolIndex]->GetId());
    12279  json.EndString();
    12280 
    12281  m_Pools[poolIndex]->m_BlockVector.PrintDetailedMap(json);
    12282  }
    12283  json.EndObject();
    12284  }
    12285  }
    12286 }
    12287 
    12288 #endif // #if VMA_STATS_STRING_ENABLED
    12289 
    12291 // Public interface
    12292 
    12293 VkResult vmaCreateAllocator(
    12294  const VmaAllocatorCreateInfo* pCreateInfo,
    12295  VmaAllocator* pAllocator)
    12296 {
    12297  VMA_ASSERT(pCreateInfo && pAllocator);
    12298  VMA_DEBUG_LOG("vmaCreateAllocator");
    12299  *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo);
    12300  return (*pAllocator)->Init(pCreateInfo);
    12301 }
    12302 
    12303 void vmaDestroyAllocator(
    12304  VmaAllocator allocator)
    12305 {
    12306  if(allocator != VK_NULL_HANDLE)
    12307  {
    12308  VMA_DEBUG_LOG("vmaDestroyAllocator");
    12309  VkAllocationCallbacks allocationCallbacks = allocator->m_AllocationCallbacks;
    12310  vma_delete(&allocationCallbacks, allocator);
    12311  }
    12312 }
    12313 
    12314 void vmaGetPhysicalDeviceProperties(
    12315  VmaAllocator allocator,
    12316  const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
    12317 {
    12318  VMA_ASSERT(allocator && ppPhysicalDeviceProperties);
    12319  *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties;
    12320 }
    12321 
    12322 void vmaGetMemoryProperties(
    12323  VmaAllocator allocator,
    12324  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties)
    12325 {
    12326  VMA_ASSERT(allocator && ppPhysicalDeviceMemoryProperties);
    12327  *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps;
    12328 }
    12329 
    12330 void vmaGetMemoryTypeProperties(
    12331  VmaAllocator allocator,
    12332  uint32_t memoryTypeIndex,
    12333  VkMemoryPropertyFlags* pFlags)
    12334 {
    12335  VMA_ASSERT(allocator && pFlags);
    12336  VMA_ASSERT(memoryTypeIndex < allocator->GetMemoryTypeCount());
    12337  *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags;
    12338 }
    12339 
    12340 void vmaSetCurrentFrameIndex(
    12341  VmaAllocator allocator,
    12342  uint32_t frameIndex)
    12343 {
    12344  VMA_ASSERT(allocator);
    12345  VMA_ASSERT(frameIndex != VMA_FRAME_INDEX_LOST);
    12346 
    12347  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12348 
    12349  allocator->SetCurrentFrameIndex(frameIndex);
    12350 }
    12351 
    12352 void vmaCalculateStats(
    12353  VmaAllocator allocator,
    12354  VmaStats* pStats)
    12355 {
    12356  VMA_ASSERT(allocator && pStats);
    12357  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12358  allocator->CalculateStats(pStats);
    12359 }
    12360 
    12361 #if VMA_STATS_STRING_ENABLED
    12362 
    12363 void vmaBuildStatsString(
    12364  VmaAllocator allocator,
    12365  char** ppStatsString,
    12366  VkBool32 detailedMap)
    12367 {
    12368  VMA_ASSERT(allocator && ppStatsString);
    12369  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12370 
    12371  VmaStringBuilder sb(allocator);
    12372  {
    12373  VmaJsonWriter json(allocator->GetAllocationCallbacks(), sb);
    12374  json.BeginObject();
    12375 
    12376  VmaStats stats;
    12377  allocator->CalculateStats(&stats);
    12378 
    12379  json.WriteString("Total");
    12380  VmaPrintStatInfo(json, stats.total);
    12381 
    12382  for(uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex)
    12383  {
    12384  json.BeginString("Heap ");
    12385  json.ContinueString(heapIndex);
    12386  json.EndString();
    12387  json.BeginObject();
    12388 
    12389  json.WriteString("Size");
    12390  json.WriteNumber(allocator->m_MemProps.memoryHeaps[heapIndex].size);
    12391 
    12392  json.WriteString("Flags");
    12393  json.BeginArray(true);
    12394  if((allocator->m_MemProps.memoryHeaps[heapIndex].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) != 0)
    12395  {
    12396  json.WriteString("DEVICE_LOCAL");
    12397  }
    12398  json.EndArray();
    12399 
    12400  if(stats.memoryHeap[heapIndex].blockCount > 0)
    12401  {
    12402  json.WriteString("Stats");
    12403  VmaPrintStatInfo(json, stats.memoryHeap[heapIndex]);
    12404  }
    12405 
    12406  for(uint32_t typeIndex = 0; typeIndex < allocator->GetMemoryTypeCount(); ++typeIndex)
    12407  {
    12408  if(allocator->MemoryTypeIndexToHeapIndex(typeIndex) == heapIndex)
    12409  {
    12410  json.BeginString("Type ");
    12411  json.ContinueString(typeIndex);
    12412  json.EndString();
    12413 
    12414  json.BeginObject();
    12415 
    12416  json.WriteString("Flags");
    12417  json.BeginArray(true);
    12418  VkMemoryPropertyFlags flags = allocator->m_MemProps.memoryTypes[typeIndex].propertyFlags;
    12419  if((flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) != 0)
    12420  {
    12421  json.WriteString("DEVICE_LOCAL");
    12422  }
    12423  if((flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
    12424  {
    12425  json.WriteString("HOST_VISIBLE");
    12426  }
    12427  if((flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) != 0)
    12428  {
    12429  json.WriteString("HOST_COHERENT");
    12430  }
    12431  if((flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) != 0)
    12432  {
    12433  json.WriteString("HOST_CACHED");
    12434  }
    12435  if((flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) != 0)
    12436  {
    12437  json.WriteString("LAZILY_ALLOCATED");
    12438  }
    12439  json.EndArray();
    12440 
    12441  if(stats.memoryType[typeIndex].blockCount > 0)
    12442  {
    12443  json.WriteString("Stats");
    12444  VmaPrintStatInfo(json, stats.memoryType[typeIndex]);
    12445  }
    12446 
    12447  json.EndObject();
    12448  }
    12449  }
    12450 
    12451  json.EndObject();
    12452  }
    12453  if(detailedMap == VK_TRUE)
    12454  {
    12455  allocator->PrintDetailedMap(json);
    12456  }
    12457 
    12458  json.EndObject();
    12459  }
    12460 
    12461  const size_t len = sb.GetLength();
    12462  char* const pChars = vma_new_array(allocator, char, len + 1);
    12463  if(len > 0)
    12464  {
    12465  memcpy(pChars, sb.GetData(), len);
    12466  }
    12467  pChars[len] = '\0';
    12468  *ppStatsString = pChars;
    12469 }
    12470 
    12471 void vmaFreeStatsString(
    12472  VmaAllocator allocator,
    12473  char* pStatsString)
    12474 {
    12475  if(pStatsString != VMA_NULL)
    12476  {
    12477  VMA_ASSERT(allocator);
    12478  size_t len = strlen(pStatsString);
    12479  vma_delete_array(allocator, pStatsString, len + 1);
    12480  }
    12481 }
    12482 
    12483 #endif // #if VMA_STATS_STRING_ENABLED
    12484 
    12485 /*
    12486 This function is not protected by any mutex because it just reads immutable data.
    12487 */
    12488 VkResult vmaFindMemoryTypeIndex(
    12489  VmaAllocator allocator,
    12490  uint32_t memoryTypeBits,
    12491  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12492  uint32_t* pMemoryTypeIndex)
    12493 {
    12494  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12495  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12496  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12497 
    12498  if(pAllocationCreateInfo->memoryTypeBits != 0)
    12499  {
    12500  memoryTypeBits &= pAllocationCreateInfo->memoryTypeBits;
    12501  }
    12502 
    12503  uint32_t requiredFlags = pAllocationCreateInfo->requiredFlags;
    12504  uint32_t preferredFlags = pAllocationCreateInfo->preferredFlags;
    12505 
    12506  const bool mapped = (pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
    12507  if(mapped)
    12508  {
    12509  preferredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12510  }
    12511 
    12512  // Convert usage to requiredFlags and preferredFlags.
    12513  switch(pAllocationCreateInfo->usage)
    12514  {
    12515  case VMA_MEMORY_USAGE_UNKNOWN:
    12516  break;
    12517  case VMA_MEMORY_USAGE_GPU_ONLY:
    12518  if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    12519  {
    12520  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
    12521  }
    12522  break;
    12523  case VMA_MEMORY_USAGE_CPU_ONLY:
    12524  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
    12525  break;
    12526  case VMA_MEMORY_USAGE_CPU_TO_GPU:
    12527  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12528  if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
    12529  {
    12530  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
    12531  }
    12532  break;
    12533  case VMA_MEMORY_USAGE_GPU_TO_CPU:
    12534  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
    12535  preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
    12536  break;
    12537  default:
    12538  break;
    12539  }
    12540 
    12541  *pMemoryTypeIndex = UINT32_MAX;
    12542  uint32_t minCost = UINT32_MAX;
    12543  for(uint32_t memTypeIndex = 0, memTypeBit = 1;
    12544  memTypeIndex < allocator->GetMemoryTypeCount();
    12545  ++memTypeIndex, memTypeBit <<= 1)
    12546  {
    12547  // This memory type is acceptable according to memoryTypeBits bitmask.
    12548  if((memTypeBit & memoryTypeBits) != 0)
    12549  {
    12550  const VkMemoryPropertyFlags currFlags =
    12551  allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
    12552  // This memory type contains requiredFlags.
    12553  if((requiredFlags & ~currFlags) == 0)
    12554  {
    12555  // Calculate cost as number of bits from preferredFlags not present in this memory type.
    12556  uint32_t currCost = VmaCountBitsSet(preferredFlags & ~currFlags);
    12557  // Remember memory type with lowest cost.
    12558  if(currCost < minCost)
    12559  {
    12560  *pMemoryTypeIndex = memTypeIndex;
    12561  if(currCost == 0)
    12562  {
    12563  return VK_SUCCESS;
    12564  }
    12565  minCost = currCost;
    12566  }
    12567  }
    12568  }
    12569  }
    12570  return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT;
    12571 }
    12572 
    12573 VkResult vmaFindMemoryTypeIndexForBufferInfo(
    12574  VmaAllocator allocator,
    12575  const VkBufferCreateInfo* pBufferCreateInfo,
    12576  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12577  uint32_t* pMemoryTypeIndex)
    12578 {
    12579  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12580  VMA_ASSERT(pBufferCreateInfo != VMA_NULL);
    12581  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12582  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12583 
    12584  const VkDevice hDev = allocator->m_hDevice;
    12585  VkBuffer hBuffer = VK_NULL_HANDLE;
    12586  VkResult res = allocator->GetVulkanFunctions().vkCreateBuffer(
    12587  hDev, pBufferCreateInfo, allocator->GetAllocationCallbacks(), &hBuffer);
    12588  if(res == VK_SUCCESS)
    12589  {
    12590  VkMemoryRequirements memReq = {};
    12591  allocator->GetVulkanFunctions().vkGetBufferMemoryRequirements(
    12592  hDev, hBuffer, &memReq);
    12593 
    12594  res = vmaFindMemoryTypeIndex(
    12595  allocator,
    12596  memReq.memoryTypeBits,
    12597  pAllocationCreateInfo,
    12598  pMemoryTypeIndex);
    12599 
    12600  allocator->GetVulkanFunctions().vkDestroyBuffer(
    12601  hDev, hBuffer, allocator->GetAllocationCallbacks());
    12602  }
    12603  return res;
    12604 }
    12605 
    12606 VkResult vmaFindMemoryTypeIndexForImageInfo(
    12607  VmaAllocator allocator,
    12608  const VkImageCreateInfo* pImageCreateInfo,
    12609  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    12610  uint32_t* pMemoryTypeIndex)
    12611 {
    12612  VMA_ASSERT(allocator != VK_NULL_HANDLE);
    12613  VMA_ASSERT(pImageCreateInfo != VMA_NULL);
    12614  VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
    12615  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
    12616 
    12617  const VkDevice hDev = allocator->m_hDevice;
    12618  VkImage hImage = VK_NULL_HANDLE;
    12619  VkResult res = allocator->GetVulkanFunctions().vkCreateImage(
    12620  hDev, pImageCreateInfo, allocator->GetAllocationCallbacks(), &hImage);
    12621  if(res == VK_SUCCESS)
    12622  {
    12623  VkMemoryRequirements memReq = {};
    12624  allocator->GetVulkanFunctions().vkGetImageMemoryRequirements(
    12625  hDev, hImage, &memReq);
    12626 
    12627  res = vmaFindMemoryTypeIndex(
    12628  allocator,
    12629  memReq.memoryTypeBits,
    12630  pAllocationCreateInfo,
    12631  pMemoryTypeIndex);
    12632 
    12633  allocator->GetVulkanFunctions().vkDestroyImage(
    12634  hDev, hImage, allocator->GetAllocationCallbacks());
    12635  }
    12636  return res;
    12637 }
    12638 
    12639 VkResult vmaCreatePool(
    12640  VmaAllocator allocator,
    12641  const VmaPoolCreateInfo* pCreateInfo,
    12642  VmaPool* pPool)
    12643 {
    12644  VMA_ASSERT(allocator && pCreateInfo && pPool);
    12645 
    12646  VMA_DEBUG_LOG("vmaCreatePool");
    12647 
    12648  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12649 
    12650  VkResult res = allocator->CreatePool(pCreateInfo, pPool);
    12651 
    12652 #if VMA_RECORDING_ENABLED
    12653  if(allocator->GetRecorder() != VMA_NULL)
    12654  {
    12655  allocator->GetRecorder()->RecordCreatePool(allocator->GetCurrentFrameIndex(), *pCreateInfo, *pPool);
    12656  }
    12657 #endif
    12658 
    12659  return res;
    12660 }
    12661 
    12662 void vmaDestroyPool(
    12663  VmaAllocator allocator,
    12664  VmaPool pool)
    12665 {
    12666  VMA_ASSERT(allocator);
    12667 
    12668  if(pool == VK_NULL_HANDLE)
    12669  {
    12670  return;
    12671  }
    12672 
    12673  VMA_DEBUG_LOG("vmaDestroyPool");
    12674 
    12675  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12676 
    12677 #if VMA_RECORDING_ENABLED
    12678  if(allocator->GetRecorder() != VMA_NULL)
    12679  {
    12680  allocator->GetRecorder()->RecordDestroyPool(allocator->GetCurrentFrameIndex(), pool);
    12681  }
    12682 #endif
    12683 
    12684  allocator->DestroyPool(pool);
    12685 }
    12686 
    12687 void vmaGetPoolStats(
    12688  VmaAllocator allocator,
    12689  VmaPool pool,
    12690  VmaPoolStats* pPoolStats)
    12691 {
    12692  VMA_ASSERT(allocator && pool && pPoolStats);
    12693 
    12694  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12695 
    12696  allocator->GetPoolStats(pool, pPoolStats);
    12697 }
    12698 
    12699 void vmaMakePoolAllocationsLost(
    12700  VmaAllocator allocator,
    12701  VmaPool pool,
    12702  size_t* pLostAllocationCount)
    12703 {
    12704  VMA_ASSERT(allocator && pool);
    12705 
    12706  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12707 
    12708 #if VMA_RECORDING_ENABLED
    12709  if(allocator->GetRecorder() != VMA_NULL)
    12710  {
    12711  allocator->GetRecorder()->RecordMakePoolAllocationsLost(allocator->GetCurrentFrameIndex(), pool);
    12712  }
    12713 #endif
    12714 
    12715  allocator->MakePoolAllocationsLost(pool, pLostAllocationCount);
    12716 }
    12717 
    12718 VkResult vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool)
    12719 {
    12720  VMA_ASSERT(allocator && pool);
    12721 
    12722  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12723 
    12724  VMA_DEBUG_LOG("vmaCheckPoolCorruption");
    12725 
    12726  return allocator->CheckPoolCorruption(pool);
    12727 }
    12728 
    12729 VkResult vmaAllocateMemory(
    12730  VmaAllocator allocator,
    12731  const VkMemoryRequirements* pVkMemoryRequirements,
    12732  const VmaAllocationCreateInfo* pCreateInfo,
    12733  VmaAllocation* pAllocation,
    12734  VmaAllocationInfo* pAllocationInfo)
    12735 {
    12736  VMA_ASSERT(allocator && pVkMemoryRequirements && pCreateInfo && pAllocation);
    12737 
    12738  VMA_DEBUG_LOG("vmaAllocateMemory");
    12739 
    12740  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12741 
    12742  VkResult result = allocator->AllocateMemory(
    12743  *pVkMemoryRequirements,
    12744  false, // requiresDedicatedAllocation
    12745  false, // prefersDedicatedAllocation
    12746  VK_NULL_HANDLE, // dedicatedBuffer
    12747  VK_NULL_HANDLE, // dedicatedImage
    12748  *pCreateInfo,
    12749  VMA_SUBALLOCATION_TYPE_UNKNOWN,
    12750  pAllocation);
    12751 
    12752 #if VMA_RECORDING_ENABLED
    12753  if(allocator->GetRecorder() != VMA_NULL)
    12754  {
    12755  allocator->GetRecorder()->RecordAllocateMemory(
    12756  allocator->GetCurrentFrameIndex(),
    12757  *pVkMemoryRequirements,
    12758  *pCreateInfo,
    12759  *pAllocation);
    12760  }
    12761 #endif
    12762 
    12763  if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS)
    12764  {
    12765  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12766  }
    12767 
    12768  return result;
    12769 }
    12770 
    12771 VkResult vmaAllocateMemoryForBuffer(
    12772  VmaAllocator allocator,
    12773  VkBuffer buffer,
    12774  const VmaAllocationCreateInfo* pCreateInfo,
    12775  VmaAllocation* pAllocation,
    12776  VmaAllocationInfo* pAllocationInfo)
    12777 {
    12778  VMA_ASSERT(allocator && buffer != VK_NULL_HANDLE && pCreateInfo && pAllocation);
    12779 
    12780  VMA_DEBUG_LOG("vmaAllocateMemoryForBuffer");
    12781 
    12782  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12783 
    12784  VkMemoryRequirements vkMemReq = {};
    12785  bool requiresDedicatedAllocation = false;
    12786  bool prefersDedicatedAllocation = false;
    12787  allocator->GetBufferMemoryRequirements(buffer, vkMemReq,
    12788  requiresDedicatedAllocation,
    12789  prefersDedicatedAllocation);
    12790 
    12791  VkResult result = allocator->AllocateMemory(
    12792  vkMemReq,
    12793  requiresDedicatedAllocation,
    12794  prefersDedicatedAllocation,
    12795  buffer, // dedicatedBuffer
    12796  VK_NULL_HANDLE, // dedicatedImage
    12797  *pCreateInfo,
    12798  VMA_SUBALLOCATION_TYPE_BUFFER,
    12799  pAllocation);
    12800 
    12801 #if VMA_RECORDING_ENABLED
    12802  if(allocator->GetRecorder() != VMA_NULL)
    12803  {
    12804  allocator->GetRecorder()->RecordAllocateMemoryForBuffer(
    12805  allocator->GetCurrentFrameIndex(),
    12806  vkMemReq,
    12807  requiresDedicatedAllocation,
    12808  prefersDedicatedAllocation,
    12809  *pCreateInfo,
    12810  *pAllocation);
    12811  }
    12812 #endif
    12813 
    12814  if(pAllocationInfo && result == VK_SUCCESS)
    12815  {
    12816  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12817  }
    12818 
    12819  return result;
    12820 }
    12821 
    12822 VkResult vmaAllocateMemoryForImage(
    12823  VmaAllocator allocator,
    12824  VkImage image,
    12825  const VmaAllocationCreateInfo* pCreateInfo,
    12826  VmaAllocation* pAllocation,
    12827  VmaAllocationInfo* pAllocationInfo)
    12828 {
    12829  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pCreateInfo && pAllocation);
    12830 
    12831  VMA_DEBUG_LOG("vmaAllocateMemoryForImage");
    12832 
    12833  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12834 
    12835  VkMemoryRequirements vkMemReq = {};
    12836  bool requiresDedicatedAllocation = false;
    12837  bool prefersDedicatedAllocation = false;
    12838  allocator->GetImageMemoryRequirements(image, vkMemReq,
    12839  requiresDedicatedAllocation, prefersDedicatedAllocation);
    12840 
    12841  VkResult result = allocator->AllocateMemory(
    12842  vkMemReq,
    12843  requiresDedicatedAllocation,
    12844  prefersDedicatedAllocation,
    12845  VK_NULL_HANDLE, // dedicatedBuffer
    12846  image, // dedicatedImage
    12847  *pCreateInfo,
    12848  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN,
    12849  pAllocation);
    12850 
    12851 #if VMA_RECORDING_ENABLED
    12852  if(allocator->GetRecorder() != VMA_NULL)
    12853  {
    12854  allocator->GetRecorder()->RecordAllocateMemoryForImage(
    12855  allocator->GetCurrentFrameIndex(),
    12856  vkMemReq,
    12857  requiresDedicatedAllocation,
    12858  prefersDedicatedAllocation,
    12859  *pCreateInfo,
    12860  *pAllocation);
    12861  }
    12862 #endif
    12863 
    12864  if(pAllocationInfo && result == VK_SUCCESS)
    12865  {
    12866  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    12867  }
    12868 
    12869  return result;
    12870 }
    12871 
    12872 void vmaFreeMemory(
    12873  VmaAllocator allocator,
    12874  VmaAllocation allocation)
    12875 {
    12876  VMA_ASSERT(allocator);
    12877 
    12878  if(allocation == VK_NULL_HANDLE)
    12879  {
    12880  return;
    12881  }
    12882 
    12883  VMA_DEBUG_LOG("vmaFreeMemory");
    12884 
    12885  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12886 
    12887 #if VMA_RECORDING_ENABLED
    12888  if(allocator->GetRecorder() != VMA_NULL)
    12889  {
    12890  allocator->GetRecorder()->RecordFreeMemory(
    12891  allocator->GetCurrentFrameIndex(),
    12892  allocation);
    12893  }
    12894 #endif
    12895 
    12896  allocator->FreeMemory(allocation);
    12897 }
    12898 
    12899 void vmaGetAllocationInfo(
    12900  VmaAllocator allocator,
    12901  VmaAllocation allocation,
    12902  VmaAllocationInfo* pAllocationInfo)
    12903 {
    12904  VMA_ASSERT(allocator && allocation && pAllocationInfo);
    12905 
    12906  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12907 
    12908 #if VMA_RECORDING_ENABLED
    12909  if(allocator->GetRecorder() != VMA_NULL)
    12910  {
    12911  allocator->GetRecorder()->RecordGetAllocationInfo(
    12912  allocator->GetCurrentFrameIndex(),
    12913  allocation);
    12914  }
    12915 #endif
    12916 
    12917  allocator->GetAllocationInfo(allocation, pAllocationInfo);
    12918 }
    12919 
    12920 VkBool32 vmaTouchAllocation(
    12921  VmaAllocator allocator,
    12922  VmaAllocation allocation)
    12923 {
    12924  VMA_ASSERT(allocator && allocation);
    12925 
    12926  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12927 
    12928 #if VMA_RECORDING_ENABLED
    12929  if(allocator->GetRecorder() != VMA_NULL)
    12930  {
    12931  allocator->GetRecorder()->RecordTouchAllocation(
    12932  allocator->GetCurrentFrameIndex(),
    12933  allocation);
    12934  }
    12935 #endif
    12936 
    12937  return allocator->TouchAllocation(allocation);
    12938 }
    12939 
    12940 void vmaSetAllocationUserData(
    12941  VmaAllocator allocator,
    12942  VmaAllocation allocation,
    12943  void* pUserData)
    12944 {
    12945  VMA_ASSERT(allocator && allocation);
    12946 
    12947  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12948 
    12949  allocation->SetUserData(allocator, pUserData);
    12950 
    12951 #if VMA_RECORDING_ENABLED
    12952  if(allocator->GetRecorder() != VMA_NULL)
    12953  {
    12954  allocator->GetRecorder()->RecordSetAllocationUserData(
    12955  allocator->GetCurrentFrameIndex(),
    12956  allocation,
    12957  pUserData);
    12958  }
    12959 #endif
    12960 }
    12961 
    12962 void vmaCreateLostAllocation(
    12963  VmaAllocator allocator,
    12964  VmaAllocation* pAllocation)
    12965 {
    12966  VMA_ASSERT(allocator && pAllocation);
    12967 
    12968  VMA_DEBUG_GLOBAL_MUTEX_LOCK;
    12969 
    12970  allocator->CreateLostAllocation(pAllocation);
    12971 
    12972 #if VMA_RECORDING_ENABLED
    12973  if(allocator->GetRecorder() != VMA_NULL)
    12974  {
    12975  allocator->GetRecorder()->RecordCreateLostAllocation(
    12976  allocator->GetCurrentFrameIndex(),
    12977  *pAllocation);
    12978  }
    12979 #endif
    12980 }
    12981 
    12982 VkResult vmaMapMemory(
    12983  VmaAllocator allocator,
    12984  VmaAllocation allocation,
    12985  void** ppData)
    12986 {
    12987  VMA_ASSERT(allocator && allocation && ppData);
    12988 
    12989  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    12990 
    12991  VkResult res = allocator->Map(allocation, ppData);
    12992 
    12993 #if VMA_RECORDING_ENABLED
    12994  if(allocator->GetRecorder() != VMA_NULL)
    12995  {
    12996  allocator->GetRecorder()->RecordMapMemory(
    12997  allocator->GetCurrentFrameIndex(),
    12998  allocation);
    12999  }
    13000 #endif
    13001 
    13002  return res;
    13003 }
    13004 
    13005 void vmaUnmapMemory(
    13006  VmaAllocator allocator,
    13007  VmaAllocation allocation)
    13008 {
    13009  VMA_ASSERT(allocator && allocation);
    13010 
    13011  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13012 
    13013 #if VMA_RECORDING_ENABLED
    13014  if(allocator->GetRecorder() != VMA_NULL)
    13015  {
    13016  allocator->GetRecorder()->RecordUnmapMemory(
    13017  allocator->GetCurrentFrameIndex(),
    13018  allocation);
    13019  }
    13020 #endif
    13021 
    13022  allocator->Unmap(allocation);
    13023 }
    13024 
    13025 void vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    13026 {
    13027  VMA_ASSERT(allocator && allocation);
    13028 
    13029  VMA_DEBUG_LOG("vmaFlushAllocation");
    13030 
    13031  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13032 
    13033  allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_FLUSH);
    13034 
    13035 #if VMA_RECORDING_ENABLED
    13036  if(allocator->GetRecorder() != VMA_NULL)
    13037  {
    13038  allocator->GetRecorder()->RecordFlushAllocation(
    13039  allocator->GetCurrentFrameIndex(),
    13040  allocation, offset, size);
    13041  }
    13042 #endif
    13043 }
    13044 
    13045 void vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    13046 {
    13047  VMA_ASSERT(allocator && allocation);
    13048 
    13049  VMA_DEBUG_LOG("vmaInvalidateAllocation");
    13050 
    13051  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13052 
    13053  allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_INVALIDATE);
    13054 
    13055 #if VMA_RECORDING_ENABLED
    13056  if(allocator->GetRecorder() != VMA_NULL)
    13057  {
    13058  allocator->GetRecorder()->RecordInvalidateAllocation(
    13059  allocator->GetCurrentFrameIndex(),
    13060  allocation, offset, size);
    13061  }
    13062 #endif
    13063 }
    13064 
    13065 VkResult vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits)
    13066 {
    13067  VMA_ASSERT(allocator);
    13068 
    13069  VMA_DEBUG_LOG("vmaCheckCorruption");
    13070 
    13071  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13072 
    13073  return allocator->CheckCorruption(memoryTypeBits);
    13074 }
    13075 
    13076 VkResult vmaDefragment(
    13077  VmaAllocator allocator,
    13078  VmaAllocation* pAllocations,
    13079  size_t allocationCount,
    13080  VkBool32* pAllocationsChanged,
    13081  const VmaDefragmentationInfo *pDefragmentationInfo,
    13082  VmaDefragmentationStats* pDefragmentationStats)
    13083 {
    13084  VMA_ASSERT(allocator && pAllocations);
    13085 
    13086  VMA_DEBUG_LOG("vmaDefragment");
    13087 
    13088  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13089 
    13090  return allocator->Defragment(pAllocations, allocationCount, pAllocationsChanged, pDefragmentationInfo, pDefragmentationStats);
    13091 }
    13092 
    13093 VkResult vmaBindBufferMemory(
    13094  VmaAllocator allocator,
    13095  VmaAllocation allocation,
    13096  VkBuffer buffer)
    13097 {
    13098  VMA_ASSERT(allocator && allocation && buffer);
    13099 
    13100  VMA_DEBUG_LOG("vmaBindBufferMemory");
    13101 
    13102  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13103 
    13104  return allocator->BindBufferMemory(allocation, buffer);
    13105 }
    13106 
    13107 VkResult vmaBindImageMemory(
    13108  VmaAllocator allocator,
    13109  VmaAllocation allocation,
    13110  VkImage image)
    13111 {
    13112  VMA_ASSERT(allocator && allocation && image);
    13113 
    13114  VMA_DEBUG_LOG("vmaBindImageMemory");
    13115 
    13116  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13117 
    13118  return allocator->BindImageMemory(allocation, image);
    13119 }
    13120 
    13121 VkResult vmaCreateBuffer(
    13122  VmaAllocator allocator,
    13123  const VkBufferCreateInfo* pBufferCreateInfo,
    13124  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    13125  VkBuffer* pBuffer,
    13126  VmaAllocation* pAllocation,
    13127  VmaAllocationInfo* pAllocationInfo)
    13128 {
    13129  VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && pBuffer && pAllocation);
    13130 
    13131  VMA_DEBUG_LOG("vmaCreateBuffer");
    13132 
    13133  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13134 
    13135  *pBuffer = VK_NULL_HANDLE;
    13136  *pAllocation = VK_NULL_HANDLE;
    13137 
    13138  // 1. Create VkBuffer.
    13139  VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)(
    13140  allocator->m_hDevice,
    13141  pBufferCreateInfo,
    13142  allocator->GetAllocationCallbacks(),
    13143  pBuffer);
    13144  if(res >= 0)
    13145  {
    13146  // 2. vkGetBufferMemoryRequirements.
    13147  VkMemoryRequirements vkMemReq = {};
    13148  bool requiresDedicatedAllocation = false;
    13149  bool prefersDedicatedAllocation = false;
    13150  allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq,
    13151  requiresDedicatedAllocation, prefersDedicatedAllocation);
    13152 
    13153  // Make sure alignment requirements for specific buffer usages reported
    13154  // in Physical Device Properties are included in alignment reported by memory requirements.
    13155  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT) != 0)
    13156  {
    13157  VMA_ASSERT(vkMemReq.alignment %
    13158  allocator->m_PhysicalDeviceProperties.limits.minTexelBufferOffsetAlignment == 0);
    13159  }
    13160  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT) != 0)
    13161  {
    13162  VMA_ASSERT(vkMemReq.alignment %
    13163  allocator->m_PhysicalDeviceProperties.limits.minUniformBufferOffsetAlignment == 0);
    13164  }
    13165  if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_STORAGE_BUFFER_BIT) != 0)
    13166  {
    13167  VMA_ASSERT(vkMemReq.alignment %
    13168  allocator->m_PhysicalDeviceProperties.limits.minStorageBufferOffsetAlignment == 0);
    13169  }
    13170 
    13171  // 3. Allocate memory using allocator.
    13172  res = allocator->AllocateMemory(
    13173  vkMemReq,
    13174  requiresDedicatedAllocation,
    13175  prefersDedicatedAllocation,
    13176  *pBuffer, // dedicatedBuffer
    13177  VK_NULL_HANDLE, // dedicatedImage
    13178  *pAllocationCreateInfo,
    13179  VMA_SUBALLOCATION_TYPE_BUFFER,
    13180  pAllocation);
    13181 
    13182 #if VMA_RECORDING_ENABLED
    13183  if(allocator->GetRecorder() != VMA_NULL)
    13184  {
    13185  allocator->GetRecorder()->RecordCreateBuffer(
    13186  allocator->GetCurrentFrameIndex(),
    13187  *pBufferCreateInfo,
    13188  *pAllocationCreateInfo,
    13189  *pAllocation);
    13190  }
    13191 #endif
    13192 
    13193  if(res >= 0)
    13194  {
    13195  // 3. Bind buffer with memory.
    13196  res = allocator->BindBufferMemory(*pAllocation, *pBuffer);
    13197  if(res >= 0)
    13198  {
    13199  // All steps succeeded.
    13200  #if VMA_STATS_STRING_ENABLED
    13201  (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage);
    13202  #endif
    13203  if(pAllocationInfo != VMA_NULL)
    13204  {
    13205  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    13206  }
    13207 
    13208  return VK_SUCCESS;
    13209  }
    13210  allocator->FreeMemory(*pAllocation);
    13211  *pAllocation = VK_NULL_HANDLE;
    13212  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
    13213  *pBuffer = VK_NULL_HANDLE;
    13214  return res;
    13215  }
    13216  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
    13217  *pBuffer = VK_NULL_HANDLE;
    13218  return res;
    13219  }
    13220  return res;
    13221 }
    13222 
    13223 void vmaDestroyBuffer(
    13224  VmaAllocator allocator,
    13225  VkBuffer buffer,
    13226  VmaAllocation allocation)
    13227 {
    13228  VMA_ASSERT(allocator);
    13229 
    13230  if(buffer == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
    13231  {
    13232  return;
    13233  }
    13234 
    13235  VMA_DEBUG_LOG("vmaDestroyBuffer");
    13236 
    13237  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13238 
    13239 #if VMA_RECORDING_ENABLED
    13240  if(allocator->GetRecorder() != VMA_NULL)
    13241  {
    13242  allocator->GetRecorder()->RecordDestroyBuffer(
    13243  allocator->GetCurrentFrameIndex(),
    13244  allocation);
    13245  }
    13246 #endif
    13247 
    13248  if(buffer != VK_NULL_HANDLE)
    13249  {
    13250  (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks());
    13251  }
    13252 
    13253  if(allocation != VK_NULL_HANDLE)
    13254  {
    13255  allocator->FreeMemory(allocation);
    13256  }
    13257 }
    13258 
    13259 VkResult vmaCreateImage(
    13260  VmaAllocator allocator,
    13261  const VkImageCreateInfo* pImageCreateInfo,
    13262  const VmaAllocationCreateInfo* pAllocationCreateInfo,
    13263  VkImage* pImage,
    13264  VmaAllocation* pAllocation,
    13265  VmaAllocationInfo* pAllocationInfo)
    13266 {
    13267  VMA_ASSERT(allocator && pImageCreateInfo && pAllocationCreateInfo && pImage && pAllocation);
    13268 
    13269  VMA_DEBUG_LOG("vmaCreateImage");
    13270 
    13271  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13272 
    13273  *pImage = VK_NULL_HANDLE;
    13274  *pAllocation = VK_NULL_HANDLE;
    13275 
    13276  // 1. Create VkImage.
    13277  VkResult res = (*allocator->GetVulkanFunctions().vkCreateImage)(
    13278  allocator->m_hDevice,
    13279  pImageCreateInfo,
    13280  allocator->GetAllocationCallbacks(),
    13281  pImage);
    13282  if(res >= 0)
    13283  {
    13284  VmaSuballocationType suballocType = pImageCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ?
    13285  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL :
    13286  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR;
    13287 
    13288  // 2. Allocate memory using allocator.
    13289  VkMemoryRequirements vkMemReq = {};
    13290  bool requiresDedicatedAllocation = false;
    13291  bool prefersDedicatedAllocation = false;
    13292  allocator->GetImageMemoryRequirements(*pImage, vkMemReq,
    13293  requiresDedicatedAllocation, prefersDedicatedAllocation);
    13294 
    13295  res = allocator->AllocateMemory(
    13296  vkMemReq,
    13297  requiresDedicatedAllocation,
    13298  prefersDedicatedAllocation,
    13299  VK_NULL_HANDLE, // dedicatedBuffer
    13300  *pImage, // dedicatedImage
    13301  *pAllocationCreateInfo,
    13302  suballocType,
    13303  pAllocation);
    13304 
    13305 #if VMA_RECORDING_ENABLED
    13306  if(allocator->GetRecorder() != VMA_NULL)
    13307  {
    13308  allocator->GetRecorder()->RecordCreateImage(
    13309  allocator->GetCurrentFrameIndex(),
    13310  *pImageCreateInfo,
    13311  *pAllocationCreateInfo,
    13312  *pAllocation);
    13313  }
    13314 #endif
    13315 
    13316  if(res >= 0)
    13317  {
    13318  // 3. Bind image with memory.
    13319  res = allocator->BindImageMemory(*pAllocation, *pImage);
    13320  if(res >= 0)
    13321  {
    13322  // All steps succeeded.
    13323  #if VMA_STATS_STRING_ENABLED
    13324  (*pAllocation)->InitBufferImageUsage(pImageCreateInfo->usage);
    13325  #endif
    13326  if(pAllocationInfo != VMA_NULL)
    13327  {
    13328  allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
    13329  }
    13330 
    13331  return VK_SUCCESS;
    13332  }
    13333  allocator->FreeMemory(*pAllocation);
    13334  *pAllocation = VK_NULL_HANDLE;
    13335  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
    13336  *pImage = VK_NULL_HANDLE;
    13337  return res;
    13338  }
    13339  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
    13340  *pImage = VK_NULL_HANDLE;
    13341  return res;
    13342  }
    13343  return res;
    13344 }
    13345 
    13346 void vmaDestroyImage(
    13347  VmaAllocator allocator,
    13348  VkImage image,
    13349  VmaAllocation allocation)
    13350 {
    13351  VMA_ASSERT(allocator);
    13352 
    13353  if(image == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
    13354  {
    13355  return;
    13356  }
    13357 
    13358  VMA_DEBUG_LOG("vmaDestroyImage");
    13359 
    13360  VMA_DEBUG_GLOBAL_MUTEX_LOCK
    13361 
    13362 #if VMA_RECORDING_ENABLED
    13363  if(allocator->GetRecorder() != VMA_NULL)
    13364  {
    13365  allocator->GetRecorder()->RecordDestroyImage(
    13366  allocator->GetCurrentFrameIndex(),
    13367  allocation);
    13368  }
    13369 #endif
    13370 
    13371  if(image != VK_NULL_HANDLE)
    13372  {
    13373  (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, image, allocator->GetAllocationCallbacks());
    13374  }
    13375  if(allocation != VK_NULL_HANDLE)
    13376  {
    13377  allocator->FreeMemory(allocation);
    13378  }
    13379 }
    13380 
    13381 #endif // #ifdef VMA_IMPLEMENTATION
    VmaVulkanFunctions::vkGetPhysicalDeviceProperties
    PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties
    Definition: vk_mem_alloc.h:1430
    +
    VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT
    Set this flag if the allocation should have its own memory block.
    Definition: vk_mem_alloc.h:1743
    vmaUnmapMemory
    void vmaUnmapMemory(VmaAllocator allocator, VmaAllocation allocation)
    Unmaps memory represented by given allocation, mapped previously using vmaMapMemory().
    -
    VmaAllocatorCreateInfo::physicalDevice
    VkPhysicalDevice physicalDevice
    Vulkan physical device.
    Definition: vk_mem_alloc.h:1498
    +
    VmaAllocatorCreateInfo::physicalDevice
    VkPhysicalDevice physicalDevice
    Vulkan physical device.
    Definition: vk_mem_alloc.h:1499
    vmaDefragment
    VkResult vmaDefragment(VmaAllocator allocator, VmaAllocation *pAllocations, size_t allocationCount, VkBool32 *pAllocationsChanged, const VmaDefragmentationInfo *pDefragmentationInfo, VmaDefragmentationStats *pDefragmentationStats)
    Compacts memory by moving allocations.
    vmaInvalidateAllocation
    void vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    Invalidates memory of given allocation.
    VmaAllocation
    Represents single memory allocation.
    -
    VMA_RECORD_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1460
    -
    VmaVulkanFunctions::vkCreateBuffer
    PFN_vkCreateBuffer vkCreateBuffer
    Definition: vk_mem_alloc.h:1441
    +
    VMA_RECORD_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1461
    +
    VmaVulkanFunctions::vkCreateBuffer
    PFN_vkCreateBuffer vkCreateBuffer
    Definition: vk_mem_alloc.h:1442
    vmaFreeStatsString
    void vmaFreeStatsString(VmaAllocator allocator, char *pStatsString)
    VmaStats
    struct VmaStats VmaStats
    General statistics from current state of Allocator.
    -
    VMA_MEMORY_USAGE_GPU_ONLY
    Definition: vk_mem_alloc.h:1699
    -
    VmaVulkanFunctions::vkMapMemory
    PFN_vkMapMemory vkMapMemory
    Definition: vk_mem_alloc.h:1433
    -
    VmaAllocationInfo::deviceMemory
    VkDeviceMemory deviceMemory
    Handle to Vulkan memory object.
    Definition: vk_mem_alloc.h:2109
    -
    VmaAllocatorCreateInfo::flags
    VmaAllocatorCreateFlags flags
    Flags for created allocator. Use VmaAllocatorCreateFlagBits enum.
    Definition: vk_mem_alloc.h:1495
    -
    VmaDefragmentationInfo::maxAllocationsToMove
    uint32_t maxAllocationsToMove
    Maximum number of allocations that can be moved to different place.
    Definition: vk_mem_alloc.h:2354
    -
    VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT
    Use this flag if you always allocate only buffers and linear images or only optimal images out of thi...
    Definition: vk_mem_alloc.h:1923
    -
    VMA_RECORDING_ENABLED
    #define VMA_RECORDING_ENABLED
    Definition: vk_mem_alloc.h:1472
    +
    VMA_MEMORY_USAGE_GPU_ONLY
    Definition: vk_mem_alloc.h:1700
    +
    VmaVulkanFunctions::vkMapMemory
    PFN_vkMapMemory vkMapMemory
    Definition: vk_mem_alloc.h:1434
    +
    VmaAllocationInfo::deviceMemory
    VkDeviceMemory deviceMemory
    Handle to Vulkan memory object.
    Definition: vk_mem_alloc.h:2110
    +
    VmaAllocatorCreateInfo::flags
    VmaAllocatorCreateFlags flags
    Flags for created allocator. Use VmaAllocatorCreateFlagBits enum.
    Definition: vk_mem_alloc.h:1496
    +
    VmaDefragmentationInfo::maxAllocationsToMove
    uint32_t maxAllocationsToMove
    Maximum number of allocations that can be moved to different place.
    Definition: vk_mem_alloc.h:2355
    +
    VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT
    Use this flag if you always allocate only buffers and linear images or only optimal images out of thi...
    Definition: vk_mem_alloc.h:1924
    +
    VMA_RECORDING_ENABLED
    #define VMA_RECORDING_ENABLED
    Definition: vk_mem_alloc.h:1473
    vmaMakePoolAllocationsLost
    void vmaMakePoolAllocationsLost(VmaAllocator allocator, VmaPool pool, size_t *pLostAllocationCount)
    Marks all allocations in given pool as lost if they are not used in current frame or VmaPoolCreateInf...
    -
    VmaPoolStats::size
    VkDeviceSize size
    Total amount of VkDeviceMemory allocated from Vulkan for this pool, in bytes.
    Definition: vk_mem_alloc.h:1993
    -
    VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT
    Definition: vk_mem_alloc.h:1779
    -
    VmaAllocatorCreateFlags
    VkFlags VmaAllocatorCreateFlags
    Definition: vk_mem_alloc.h:1422
    -
    VmaAllocationCreateInfo::preferredFlags
    VkMemoryPropertyFlags preferredFlags
    Flags that preferably should be set in a memory type chosen for an allocation.
    Definition: vk_mem_alloc.h:1822
    -
    VMA_MEMORY_USAGE_MAX_ENUM
    Definition: vk_mem_alloc.h:1726
    -
    VmaAllocatorCreateInfo::pAllocationCallbacks
    const VkAllocationCallbacks * pAllocationCallbacks
    Custom CPU memory allocation callbacks. Optional.
    Definition: vk_mem_alloc.h:1507
    +
    VmaPoolStats::size
    VkDeviceSize size
    Total amount of VkDeviceMemory allocated from Vulkan for this pool, in bytes.
    Definition: vk_mem_alloc.h:1994
    +
    VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT
    Definition: vk_mem_alloc.h:1780
    +
    VmaAllocatorCreateFlags
    VkFlags VmaAllocatorCreateFlags
    Definition: vk_mem_alloc.h:1423
    +
    VmaAllocationCreateInfo::preferredFlags
    VkMemoryPropertyFlags preferredFlags
    Flags that preferably should be set in a memory type chosen for an allocation.
    Definition: vk_mem_alloc.h:1823
    +
    VMA_MEMORY_USAGE_MAX_ENUM
    Definition: vk_mem_alloc.h:1727
    +
    VmaAllocatorCreateInfo::pAllocationCallbacks
    const VkAllocationCallbacks * pAllocationCallbacks
    Custom CPU memory allocation callbacks. Optional.
    Definition: vk_mem_alloc.h:1508
    vmaCalculateStats
    void vmaCalculateStats(VmaAllocator allocator, VmaStats *pStats)
    Retrieves statistics from current state of the Allocator.
    -
    VmaAllocatorCreateInfo::pVulkanFunctions
    const VmaVulkanFunctions * pVulkanFunctions
    Pointers to Vulkan functions. Can be null if you leave define VMA_STATIC_VULKAN_FUNCTIONS 1...
    Definition: vk_mem_alloc.h:1560
    -
    VmaAllocatorCreateInfo
    Description of a Allocator to be created.
    Definition: vk_mem_alloc.h:1492
    +
    VmaAllocatorCreateInfo::pVulkanFunctions
    const VmaVulkanFunctions * pVulkanFunctions
    Pointers to Vulkan functions. Can be null if you leave define VMA_STATIC_VULKAN_FUNCTIONS 1...
    Definition: vk_mem_alloc.h:1561
    +
    VmaAllocatorCreateInfo
    Description of a Allocator to be created.
    Definition: vk_mem_alloc.h:1493
    vmaDestroyAllocator
    void vmaDestroyAllocator(VmaAllocator allocator)
    Destroys allocator object.
    -
    VmaAllocationCreateFlagBits
    VmaAllocationCreateFlagBits
    Flags to be passed as VmaAllocationCreateInfo::flags.
    Definition: vk_mem_alloc.h:1730
    +
    VmaAllocationCreateFlagBits
    VmaAllocationCreateFlagBits
    Flags to be passed as VmaAllocationCreateInfo::flags.
    Definition: vk_mem_alloc.h:1731
    vmaGetAllocationInfo
    void vmaGetAllocationInfo(VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo *pAllocationInfo)
    Returns current information about specified allocation and atomically marks it as used in current fra...
    -
    VmaStatInfo::allocationSizeMax
    VkDeviceSize allocationSizeMax
    Definition: vk_mem_alloc.h:1632
    -
    VmaVulkanFunctions::vkBindImageMemory
    PFN_vkBindImageMemory vkBindImageMemory
    Definition: vk_mem_alloc.h:1438
    -
    VmaStatInfo::unusedBytes
    VkDeviceSize unusedBytes
    Total number of bytes occupied by unused ranges.
    Definition: vk_mem_alloc.h:1631
    -
    VmaDefragmentationStats
    Statistics returned by function vmaDefragment().
    Definition: vk_mem_alloc.h:2358
    +
    VmaStatInfo::allocationSizeMax
    VkDeviceSize allocationSizeMax
    Definition: vk_mem_alloc.h:1633
    +
    VmaVulkanFunctions::vkBindImageMemory
    PFN_vkBindImageMemory vkBindImageMemory
    Definition: vk_mem_alloc.h:1439
    +
    VmaStatInfo::unusedBytes
    VkDeviceSize unusedBytes
    Total number of bytes occupied by unused ranges.
    Definition: vk_mem_alloc.h:1632
    +
    VmaDefragmentationStats
    Statistics returned by function vmaDefragment().
    Definition: vk_mem_alloc.h:2359
    vmaFreeMemory
    void vmaFreeMemory(VmaAllocator allocator, VmaAllocation allocation)
    Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(), or vmaAllocateMemoryForImage().
    -
    VmaAllocatorCreateInfo::frameInUseCount
    uint32_t frameInUseCount
    Maximum number of additional frames that are in use at the same time as current frame.
    Definition: vk_mem_alloc.h:1524
    -
    VmaStats::total
    VmaStatInfo total
    Definition: vk_mem_alloc.h:1641
    -
    VmaDefragmentationStats::deviceMemoryBlocksFreed
    uint32_t deviceMemoryBlocksFreed
    Number of empty VkDeviceMemory objects that have been released to the system.
    Definition: vk_mem_alloc.h:2366
    -
    VmaAllocationCreateInfo::flags
    VmaAllocationCreateFlags flags
    Use VmaAllocationCreateFlagBits enum.
    Definition: vk_mem_alloc.h:1806
    -
    VmaDefragmentationInfo::maxBytesToMove
    VkDeviceSize maxBytesToMove
    Maximum total numbers of bytes that can be copied while moving allocations to different places...
    Definition: vk_mem_alloc.h:2349
    -
    VmaVulkanFunctions::vkGetBufferMemoryRequirements
    PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements
    Definition: vk_mem_alloc.h:1439
    -
    PFN_vmaAllocateDeviceMemoryFunction
    void(VKAPI_PTR * PFN_vmaAllocateDeviceMemoryFunction)(VmaAllocator allocator, uint32_t memoryType, VkDeviceMemory memory, VkDeviceSize size)
    Callback function called after successful vkAllocateMemory.
    Definition: vk_mem_alloc.h:1364
    +
    VmaAllocatorCreateInfo::frameInUseCount
    uint32_t frameInUseCount
    Maximum number of additional frames that are in use at the same time as current frame.
    Definition: vk_mem_alloc.h:1525
    +
    VmaStats::total
    VmaStatInfo total
    Definition: vk_mem_alloc.h:1642
    +
    VmaDefragmentationStats::deviceMemoryBlocksFreed
    uint32_t deviceMemoryBlocksFreed
    Number of empty VkDeviceMemory objects that have been released to the system.
    Definition: vk_mem_alloc.h:2367
    +
    VmaAllocationCreateInfo::flags
    VmaAllocationCreateFlags flags
    Use VmaAllocationCreateFlagBits enum.
    Definition: vk_mem_alloc.h:1807
    +
    VmaDefragmentationInfo::maxBytesToMove
    VkDeviceSize maxBytesToMove
    Maximum total numbers of bytes that can be copied while moving allocations to different places...
    Definition: vk_mem_alloc.h:2350
    +
    VmaVulkanFunctions::vkGetBufferMemoryRequirements
    PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements
    Definition: vk_mem_alloc.h:1440
    +
    PFN_vmaAllocateDeviceMemoryFunction
    void(VKAPI_PTR * PFN_vmaAllocateDeviceMemoryFunction)(VmaAllocator allocator, uint32_t memoryType, VkDeviceMemory memory, VkDeviceSize size)
    Callback function called after successful vkAllocateMemory.
    Definition: vk_mem_alloc.h:1365
    VmaAllocator
    Represents main object of this library initialized.
    -
    VmaAllocatorCreateInfo::device
    VkDevice device
    Vulkan device.
    Definition: vk_mem_alloc.h:1501
    +
    VmaAllocatorCreateInfo::device
    VkDevice device
    Vulkan device.
    Definition: vk_mem_alloc.h:1502
    vmaBindBufferMemory
    VkResult vmaBindBufferMemory(VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer)
    Binds buffer to allocation.
    -
    VmaPoolCreateInfo
    Describes parameter of created VmaPool.
    Definition: vk_mem_alloc.h:1946
    -
    VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1940
    -
    VmaAllocatorCreateInfo::pRecordSettings
    const VmaRecordSettings * pRecordSettings
    Parameters for recording of VMA calls. Can be null.
    Definition: vk_mem_alloc.h:1567
    -
    VmaAllocationInfo::size
    VkDeviceSize size
    Size of this allocation, in bytes.
    Definition: vk_mem_alloc.h:2119
    +
    VmaPoolCreateInfo
    Describes parameter of created VmaPool.
    Definition: vk_mem_alloc.h:1947
    +
    VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1941
    +
    VmaAllocatorCreateInfo::pRecordSettings
    const VmaRecordSettings * pRecordSettings
    Parameters for recording of VMA calls. Can be null.
    Definition: vk_mem_alloc.h:1568
    +
    VmaAllocationInfo::size
    VkDeviceSize size
    Size of this allocation, in bytes.
    Definition: vk_mem_alloc.h:2120
    vmaGetMemoryTypeProperties
    void vmaGetMemoryTypeProperties(VmaAllocator allocator, uint32_t memoryTypeIndex, VkMemoryPropertyFlags *pFlags)
    Given Memory Type Index, returns Property Flags of this memory type.
    -
    VmaVulkanFunctions::vkUnmapMemory
    PFN_vkUnmapMemory vkUnmapMemory
    Definition: vk_mem_alloc.h:1434
    -
    VMA_RECORD_FLUSH_AFTER_CALL_BIT
    Enables flush after recording every function call.
    Definition: vk_mem_alloc.h:1458
    -
    VmaAllocationCreateInfo::pUserData
    void * pUserData
    Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...
    Definition: vk_mem_alloc.h:1843
    -
    VmaPoolCreateInfo::minBlockCount
    size_t minBlockCount
    Minimum number of blocks to be always allocated in this pool, even if they stay empty.
    Definition: vk_mem_alloc.h:1962
    -
    VmaPoolStats::allocationCount
    size_t allocationCount
    Number of VmaAllocation objects created from this pool that were not destroyed or lost...
    Definition: vk_mem_alloc.h:1999
    +
    VmaVulkanFunctions::vkUnmapMemory
    PFN_vkUnmapMemory vkUnmapMemory
    Definition: vk_mem_alloc.h:1435
    +
    VMA_RECORD_FLUSH_AFTER_CALL_BIT
    Enables flush after recording every function call.
    Definition: vk_mem_alloc.h:1459
    +
    VmaAllocationCreateInfo::pUserData
    void * pUserData
    Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...
    Definition: vk_mem_alloc.h:1844
    +
    VmaPoolCreateInfo::minBlockCount
    size_t minBlockCount
    Minimum number of blocks to be always allocated in this pool, even if they stay empty.
    Definition: vk_mem_alloc.h:1963
    +
    VmaPoolStats::allocationCount
    size_t allocationCount
    Number of VmaAllocation objects created from this pool that were not destroyed or lost...
    Definition: vk_mem_alloc.h:2000
    VmaVulkanFunctions
    struct VmaVulkanFunctions VmaVulkanFunctions
    Pointers to some Vulkan functions - a subset used by the library.
    -
    VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1420
    -
    VmaPoolCreateInfo::memoryTypeIndex
    uint32_t memoryTypeIndex
    Vulkan memory type index to allocate this pool from.
    Definition: vk_mem_alloc.h:1949
    +
    VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1421
    +
    VmaPoolCreateInfo::memoryTypeIndex
    uint32_t memoryTypeIndex
    Vulkan memory type index to allocate this pool from.
    Definition: vk_mem_alloc.h:1950
    vmaFindMemoryTypeIndex
    VkResult vmaFindMemoryTypeIndex(VmaAllocator allocator, uint32_t memoryTypeBits, const VmaAllocationCreateInfo *pAllocationCreateInfo, uint32_t *pMemoryTypeIndex)
    Helps to find memoryTypeIndex, given memoryTypeBits and VmaAllocationCreateInfo.
    -
    VmaMemoryUsage
    VmaMemoryUsage
    Definition: vk_mem_alloc.h:1677
    +
    VmaMemoryUsage
    VmaMemoryUsage
    Definition: vk_mem_alloc.h:1678
    VmaAllocationInfo
    struct VmaAllocationInfo VmaAllocationInfo
    Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().
    vmaFlushAllocation
    void vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size)
    Flushes memory of given allocation.
    -
    VmaDefragmentationInfo
    Optional configuration parameters to be passed to function vmaDefragment().
    Definition: vk_mem_alloc.h:2344
    +
    VmaDefragmentationInfo
    Optional configuration parameters to be passed to function vmaDefragment().
    Definition: vk_mem_alloc.h:2345
    VmaPoolCreateInfo
    struct VmaPoolCreateInfo VmaPoolCreateInfo
    Describes parameter of created VmaPool.
    vmaDestroyPool
    void vmaDestroyPool(VmaAllocator allocator, VmaPool pool)
    Destroys VmaPool object and frees Vulkan device memory.
    -
    VmaDefragmentationStats::bytesFreed
    VkDeviceSize bytesFreed
    Total number of bytes that have been released to the system by freeing empty VkDeviceMemory objects...
    Definition: vk_mem_alloc.h:2362
    -
    VMA_MEMORY_USAGE_CPU_TO_GPU
    Definition: vk_mem_alloc.h:1716
    -
    VmaAllocationCreateInfo::memoryTypeBits
    uint32_t memoryTypeBits
    Bitmask containing one bit set for every memory type acceptable for this allocation.
    Definition: vk_mem_alloc.h:1830
    -
    VmaVulkanFunctions::vkBindBufferMemory
    PFN_vkBindBufferMemory vkBindBufferMemory
    Definition: vk_mem_alloc.h:1437
    +
    VmaDefragmentationStats::bytesFreed
    VkDeviceSize bytesFreed
    Total number of bytes that have been released to the system by freeing empty VkDeviceMemory objects...
    Definition: vk_mem_alloc.h:2363
    +
    VMA_MEMORY_USAGE_CPU_TO_GPU
    Definition: vk_mem_alloc.h:1717
    +
    VmaAllocationCreateInfo::memoryTypeBits
    uint32_t memoryTypeBits
    Bitmask containing one bit set for every memory type acceptable for this allocation.
    Definition: vk_mem_alloc.h:1831
    +
    VmaVulkanFunctions::vkBindBufferMemory
    PFN_vkBindBufferMemory vkBindBufferMemory
    Definition: vk_mem_alloc.h:1438
    VmaPool
    Represents custom memory pool.
    vmaGetPoolStats
    void vmaGetPoolStats(VmaAllocator allocator, VmaPool pool, VmaPoolStats *pPoolStats)
    Retrieves statistics of existing VmaPool object.
    VmaDefragmentationInfo
    struct VmaDefragmentationInfo VmaDefragmentationInfo
    Optional configuration parameters to be passed to function vmaDefragment().
    -
    VmaStats
    General statistics from current state of Allocator.
    Definition: vk_mem_alloc.h:1637
    -
    PFN_vmaFreeDeviceMemoryFunction
    void(VKAPI_PTR * PFN_vmaFreeDeviceMemoryFunction)(VmaAllocator allocator, uint32_t memoryType, VkDeviceMemory memory, VkDeviceSize size)
    Callback function called before vkFreeMemory.
    Definition: vk_mem_alloc.h:1370
    +
    VmaStats
    General statistics from current state of Allocator.
    Definition: vk_mem_alloc.h:1638
    +
    PFN_vmaFreeDeviceMemoryFunction
    void(VKAPI_PTR * PFN_vmaFreeDeviceMemoryFunction)(VmaAllocator allocator, uint32_t memoryType, VkDeviceMemory memory, VkDeviceSize size)
    Callback function called before vkFreeMemory.
    Definition: vk_mem_alloc.h:1371
    vmaSetAllocationUserData
    void vmaSetAllocationUserData(VmaAllocator allocator, VmaAllocation allocation, void *pUserData)
    Sets pUserData in given allocation to new value.
    vmaCreatePool
    VkResult vmaCreatePool(VmaAllocator allocator, const VmaPoolCreateInfo *pCreateInfo, VmaPool *pPool)
    Allocates Vulkan device memory and creates VmaPool object.
    -
    VmaAllocatorCreateFlagBits
    VmaAllocatorCreateFlagBits
    Flags for created VmaAllocator.
    Definition: vk_mem_alloc.h:1391
    +
    VmaAllocatorCreateFlagBits
    VmaAllocatorCreateFlagBits
    Flags for created VmaAllocator.
    Definition: vk_mem_alloc.h:1392
    vmaBindImageMemory
    VkResult vmaBindImageMemory(VmaAllocator allocator, VmaAllocation allocation, VkImage image)
    Binds image to allocation.
    VmaStatInfo
    struct VmaStatInfo VmaStatInfo
    Calculated statistics of memory usage in entire allocator.
    -
    VmaRecordFlags
    VkFlags VmaRecordFlags
    Definition: vk_mem_alloc.h:1462
    -
    VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT
    Allocator and all objects created from it will not be synchronized internally, so you must guarantee ...
    Definition: vk_mem_alloc.h:1396
    -
    VmaDefragmentationStats::allocationsMoved
    uint32_t allocationsMoved
    Number of allocations that have been moved to different places.
    Definition: vk_mem_alloc.h:2364
    +
    VmaRecordFlags
    VkFlags VmaRecordFlags
    Definition: vk_mem_alloc.h:1463
    +
    VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT
    Allocator and all objects created from it will not be synchronized internally, so you must guarantee ...
    Definition: vk_mem_alloc.h:1397
    +
    VmaDefragmentationStats::allocationsMoved
    uint32_t allocationsMoved
    Number of allocations that have been moved to different places.
    Definition: vk_mem_alloc.h:2365
    vmaCreateLostAllocation
    void vmaCreateLostAllocation(VmaAllocator allocator, VmaAllocation *pAllocation)
    Creates new allocation that is in lost state from the beginning.
    -
    VmaAllocationCreateInfo::requiredFlags
    VkMemoryPropertyFlags requiredFlags
    Flags that must be set in a Memory Type chosen for an allocation.
    Definition: vk_mem_alloc.h:1817
    -
    VmaPoolStats::unusedRangeSizeMax
    VkDeviceSize unusedRangeSizeMax
    Size of the largest continuous free memory region.
    Definition: vk_mem_alloc.h:2009
    +
    VmaAllocationCreateInfo::requiredFlags
    VkMemoryPropertyFlags requiredFlags
    Flags that must be set in a Memory Type chosen for an allocation.
    Definition: vk_mem_alloc.h:1818
    +
    VmaPoolStats::unusedRangeSizeMax
    VkDeviceSize unusedRangeSizeMax
    Size of the largest continuous free memory region.
    Definition: vk_mem_alloc.h:2010
    vmaBuildStatsString
    void vmaBuildStatsString(VmaAllocator allocator, char **ppStatsString, VkBool32 detailedMap)
    Builds and returns statistics as string in JSON format.
    -
    VmaVulkanFunctions::vkGetPhysicalDeviceMemoryProperties
    PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties
    Definition: vk_mem_alloc.h:1430
    -
    VmaStatInfo
    Calculated statistics of memory usage in entire allocator.
    Definition: vk_mem_alloc.h:1620
    -
    VmaPoolCreateInfo::blockSize
    VkDeviceSize blockSize
    Size of a single VkDeviceMemory block to be allocated as part of this pool, in bytes.
    Definition: vk_mem_alloc.h:1957
    -
    VmaDeviceMemoryCallbacks
    Set of callbacks that the library will call for vkAllocateMemory and vkFreeMemory.
    Definition: vk_mem_alloc.h:1383
    +
    VmaVulkanFunctions::vkGetPhysicalDeviceMemoryProperties
    PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties
    Definition: vk_mem_alloc.h:1431
    +
    VmaStatInfo
    Calculated statistics of memory usage in entire allocator.
    Definition: vk_mem_alloc.h:1621
    +
    VmaPoolCreateInfo::blockSize
    VkDeviceSize blockSize
    Size of a single VkDeviceMemory block to be allocated as part of this pool, in bytes.
    Definition: vk_mem_alloc.h:1958
    +
    VmaDeviceMemoryCallbacks
    Set of callbacks that the library will call for vkAllocateMemory and vkFreeMemory.
    Definition: vk_mem_alloc.h:1384
    vmaCreateBuffer
    VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)
    -
    VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT
    Definition: vk_mem_alloc.h:1786
    -
    VmaStatInfo::unusedRangeSizeMin
    VkDeviceSize unusedRangeSizeMin
    Definition: vk_mem_alloc.h:1633
    -
    VmaDeviceMemoryCallbacks::pfnFree
    PFN_vmaFreeDeviceMemoryFunction pfnFree
    Optional, can be null.
    Definition: vk_mem_alloc.h:1387
    -
    VmaPoolCreateInfo::flags
    VmaPoolCreateFlags flags
    Use combination of VmaPoolCreateFlagBits.
    Definition: vk_mem_alloc.h:1952
    -
    VMA_MEMORY_USAGE_GPU_TO_CPU
    Definition: vk_mem_alloc.h:1725
    -
    VmaVulkanFunctions::vkInvalidateMappedMemoryRanges
    PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges
    Definition: vk_mem_alloc.h:1436
    +
    VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT
    Definition: vk_mem_alloc.h:1787
    +
    VmaStatInfo::unusedRangeSizeMin
    VkDeviceSize unusedRangeSizeMin
    Definition: vk_mem_alloc.h:1634
    +
    VmaDeviceMemoryCallbacks::pfnFree
    PFN_vmaFreeDeviceMemoryFunction pfnFree
    Optional, can be null.
    Definition: vk_mem_alloc.h:1388
    +
    VmaPoolCreateInfo::flags
    VmaPoolCreateFlags flags
    Use combination of VmaPoolCreateFlagBits.
    Definition: vk_mem_alloc.h:1953
    +
    VMA_MEMORY_USAGE_GPU_TO_CPU
    Definition: vk_mem_alloc.h:1726
    +
    VmaVulkanFunctions::vkInvalidateMappedMemoryRanges
    PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges
    Definition: vk_mem_alloc.h:1437
    VmaPoolStats
    struct VmaPoolStats VmaPoolStats
    Describes parameter of existing VmaPool.
    vmaCreateImage
    VkResult vmaCreateImage(VmaAllocator allocator, const VkImageCreateInfo *pImageCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkImage *pImage, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)
    Function similar to vmaCreateBuffer().
    -
    VmaAllocationCreateInfo::usage
    VmaMemoryUsage usage
    Intended usage of memory.
    Definition: vk_mem_alloc.h:1812
    -
    VmaAllocationCreateInfo
    Definition: vk_mem_alloc.h:1803
    +
    VmaAllocationCreateInfo::usage
    VmaMemoryUsage usage
    Intended usage of memory.
    Definition: vk_mem_alloc.h:1813
    +
    VmaAllocationCreateInfo
    Definition: vk_mem_alloc.h:1804
    vmaFindMemoryTypeIndexForImageInfo
    VkResult vmaFindMemoryTypeIndexForImageInfo(VmaAllocator allocator, const VkImageCreateInfo *pImageCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, uint32_t *pMemoryTypeIndex)
    Helps to find memoryTypeIndex, given VkImageCreateInfo and VmaAllocationCreateInfo.
    -
    VmaStatInfo::blockCount
    uint32_t blockCount
    Number of VkDeviceMemory Vulkan memory blocks allocated.
    Definition: vk_mem_alloc.h:1623
    -
    VmaVulkanFunctions::vkFreeMemory
    PFN_vkFreeMemory vkFreeMemory
    Definition: vk_mem_alloc.h:1432
    -
    VmaPoolCreateInfo::maxBlockCount
    size_t maxBlockCount
    Maximum number of blocks that can be allocated in this pool. Optional.
    Definition: vk_mem_alloc.h:1971
    -
    VmaAllocatorCreateInfo::pDeviceMemoryCallbacks
    const VmaDeviceMemoryCallbacks * pDeviceMemoryCallbacks
    Informative callbacks for vkAllocateMemory, vkFreeMemory. Optional.
    Definition: vk_mem_alloc.h:1510
    -
    VmaPoolStats::unusedRangeCount
    size_t unusedRangeCount
    Number of continuous memory ranges in the pool not used by any VmaAllocation.
    Definition: vk_mem_alloc.h:2002
    -
    VmaAllocationCreateFlags
    VkFlags VmaAllocationCreateFlags
    Definition: vk_mem_alloc.h:1801
    -
    VmaAllocationCreateInfo::pool
    VmaPool pool
    Pool that this allocation should be created in.
    Definition: vk_mem_alloc.h:1836
    +
    VmaStatInfo::blockCount
    uint32_t blockCount
    Number of VkDeviceMemory Vulkan memory blocks allocated.
    Definition: vk_mem_alloc.h:1624
    +
    VmaVulkanFunctions::vkFreeMemory
    PFN_vkFreeMemory vkFreeMemory
    Definition: vk_mem_alloc.h:1433
    +
    VmaPoolCreateInfo::maxBlockCount
    size_t maxBlockCount
    Maximum number of blocks that can be allocated in this pool. Optional.
    Definition: vk_mem_alloc.h:1972
    +
    VmaAllocatorCreateInfo::pDeviceMemoryCallbacks
    const VmaDeviceMemoryCallbacks * pDeviceMemoryCallbacks
    Informative callbacks for vkAllocateMemory, vkFreeMemory. Optional.
    Definition: vk_mem_alloc.h:1511
    +
    VmaPoolStats::unusedRangeCount
    size_t unusedRangeCount
    Number of continuous memory ranges in the pool not used by any VmaAllocation.
    Definition: vk_mem_alloc.h:2003
    +
    VmaAllocationCreateFlags
    VkFlags VmaAllocationCreateFlags
    Definition: vk_mem_alloc.h:1802
    +
    VmaAllocationCreateInfo::pool
    VmaPool pool
    Pool that this allocation should be created in.
    Definition: vk_mem_alloc.h:1837
    vmaGetMemoryProperties
    void vmaGetMemoryProperties(VmaAllocator allocator, const VkPhysicalDeviceMemoryProperties **ppPhysicalDeviceMemoryProperties)
    -
    VmaAllocatorCreateInfo::pHeapSizeLimit
    const VkDeviceSize * pHeapSizeLimit
    Either null or a pointer to an array of limits on maximum number of bytes that can be allocated out o...
    Definition: vk_mem_alloc.h:1548
    -
    VmaStats::memoryType
    VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES]
    Definition: vk_mem_alloc.h:1639
    -
    VMA_ALLOCATION_CREATE_MAPPED_BIT
    Set this flag to use a memory that will be persistently mapped and retrieve pointer to it...
    Definition: vk_mem_alloc.h:1766
    -
    VmaStatInfo::allocationSizeMin
    VkDeviceSize allocationSizeMin
    Definition: vk_mem_alloc.h:1632
    +
    VmaAllocatorCreateInfo::pHeapSizeLimit
    const VkDeviceSize * pHeapSizeLimit
    Either null or a pointer to an array of limits on maximum number of bytes that can be allocated out o...
    Definition: vk_mem_alloc.h:1549
    +
    VmaStats::memoryType
    VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES]
    Definition: vk_mem_alloc.h:1640
    +
    VMA_ALLOCATION_CREATE_MAPPED_BIT
    Set this flag to use a memory that will be persistently mapped and retrieve pointer to it...
    Definition: vk_mem_alloc.h:1767
    +
    VmaStatInfo::allocationSizeMin
    VkDeviceSize allocationSizeMin
    Definition: vk_mem_alloc.h:1633
    vmaFindMemoryTypeIndexForBufferInfo
    VkResult vmaFindMemoryTypeIndexForBufferInfo(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, uint32_t *pMemoryTypeIndex)
    Helps to find memoryTypeIndex, given VkBufferCreateInfo and VmaAllocationCreateInfo.
    -
    VmaVulkanFunctions::vkCreateImage
    PFN_vkCreateImage vkCreateImage
    Definition: vk_mem_alloc.h:1443
    -
    VmaRecordSettings::flags
    VmaRecordFlags flags
    Flags for recording. Use VmaRecordFlagBits enum.
    Definition: vk_mem_alloc.h:1480
    -
    VmaDeviceMemoryCallbacks::pfnAllocate
    PFN_vmaAllocateDeviceMemoryFunction pfnAllocate
    Optional, can be null.
    Definition: vk_mem_alloc.h:1385
    -
    VmaVulkanFunctions::vkDestroyBuffer
    PFN_vkDestroyBuffer vkDestroyBuffer
    Definition: vk_mem_alloc.h:1442
    +
    VmaVulkanFunctions::vkCreateImage
    PFN_vkCreateImage vkCreateImage
    Definition: vk_mem_alloc.h:1444
    +
    VmaRecordSettings::flags
    VmaRecordFlags flags
    Flags for recording. Use VmaRecordFlagBits enum.
    Definition: vk_mem_alloc.h:1481
    +
    VmaDeviceMemoryCallbacks::pfnAllocate
    PFN_vmaAllocateDeviceMemoryFunction pfnAllocate
    Optional, can be null.
    Definition: vk_mem_alloc.h:1386
    +
    VmaVulkanFunctions::vkDestroyBuffer
    PFN_vkDestroyBuffer vkDestroyBuffer
    Definition: vk_mem_alloc.h:1443
    vmaMapMemory
    VkResult vmaMapMemory(VmaAllocator allocator, VmaAllocation allocation, void **ppData)
    Maps memory represented by given allocation and returns pointer to it.
    -
    VmaPoolCreateInfo::frameInUseCount
    uint32_t frameInUseCount
    Maximum number of additional frames that are in use at the same time as current frame.
    Definition: vk_mem_alloc.h:1985
    -
    VmaVulkanFunctions::vkFlushMappedMemoryRanges
    PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges
    Definition: vk_mem_alloc.h:1435
    -
    VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT
    Definition: vk_mem_alloc.h:1797
    +
    VmaPoolCreateInfo::frameInUseCount
    uint32_t frameInUseCount
    Maximum number of additional frames that are in use at the same time as current frame.
    Definition: vk_mem_alloc.h:1986
    +
    VmaVulkanFunctions::vkFlushMappedMemoryRanges
    PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges
    Definition: vk_mem_alloc.h:1436
    +
    VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT
    Definition: vk_mem_alloc.h:1798
    vmaAllocateMemoryForImage
    VkResult vmaAllocateMemoryForImage(VmaAllocator allocator, VkImage image, const VmaAllocationCreateInfo *pCreateInfo, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)
    Function similar to vmaAllocateMemoryForBuffer().
    VmaAllocatorCreateInfo
    struct VmaAllocatorCreateInfo VmaAllocatorCreateInfo
    Description of a Allocator to be created.
    -
    VmaRecordSettings::pFilePath
    const char * pFilePath
    Path to the file that should be written by the recording.
    Definition: vk_mem_alloc.h:1488
    -
    VmaAllocationInfo::pUserData
    void * pUserData
    Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vma...
    Definition: vk_mem_alloc.h:2133
    -
    VmaAllocatorCreateInfo::preferredLargeHeapBlockSize
    VkDeviceSize preferredLargeHeapBlockSize
    Preferred size of a single VkDeviceMemory block to be allocated from large heaps > 1 GiB...
    Definition: vk_mem_alloc.h:1504
    -
    VmaStatInfo::allocationSizeAvg
    VkDeviceSize allocationSizeAvg
    Definition: vk_mem_alloc.h:1632
    -
    VmaStatInfo::usedBytes
    VkDeviceSize usedBytes
    Total number of bytes occupied by all allocations.
    Definition: vk_mem_alloc.h:1629
    +
    VmaRecordSettings::pFilePath
    const char * pFilePath
    Path to the file that should be written by the recording.
    Definition: vk_mem_alloc.h:1489
    +
    VmaAllocationInfo::pUserData
    void * pUserData
    Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vma...
    Definition: vk_mem_alloc.h:2134
    +
    VmaAllocatorCreateInfo::preferredLargeHeapBlockSize
    VkDeviceSize preferredLargeHeapBlockSize
    Preferred size of a single VkDeviceMemory block to be allocated from large heaps > 1 GiB...
    Definition: vk_mem_alloc.h:1505
    +
    VmaStatInfo::allocationSizeAvg
    VkDeviceSize allocationSizeAvg
    Definition: vk_mem_alloc.h:1633
    +
    VmaStatInfo::usedBytes
    VkDeviceSize usedBytes
    Total number of bytes occupied by all allocations.
    Definition: vk_mem_alloc.h:1630
    VmaDeviceMemoryCallbacks
    struct VmaDeviceMemoryCallbacks VmaDeviceMemoryCallbacks
    Set of callbacks that the library will call for vkAllocateMemory and vkFreeMemory.
    vmaCheckCorruption
    VkResult vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits)
    Checks magic number in margins around all allocations in given memory types (in both default and cust...
    -
    VmaPoolStats
    Describes parameter of existing VmaPool.
    Definition: vk_mem_alloc.h:1990
    +
    VmaPoolStats
    Describes parameter of existing VmaPool.
    Definition: vk_mem_alloc.h:1991
    vmaCheckPoolCorruption
    VkResult vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool)
    Checks magic number in margins around all allocations in given memory pool in search for corruptions...
    -
    VmaAllocationInfo::offset
    VkDeviceSize offset
    Offset into deviceMemory object to the beginning of this allocation, in bytes. (deviceMemory, offset) pair is unique to this allocation.
    Definition: vk_mem_alloc.h:2114
    -
    VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1799
    -
    VmaDefragmentationStats::bytesMoved
    VkDeviceSize bytesMoved
    Total number of bytes that have been copied while moving allocations to different places...
    Definition: vk_mem_alloc.h:2360
    -
    VmaVulkanFunctions
    Pointers to some Vulkan functions - a subset used by the library.
    Definition: vk_mem_alloc.h:1428
    +
    VmaAllocationInfo::offset
    VkDeviceSize offset
    Offset into deviceMemory object to the beginning of this allocation, in bytes. (deviceMemory, offset) pair is unique to this allocation.
    Definition: vk_mem_alloc.h:2115
    +
    VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM
    Definition: vk_mem_alloc.h:1800
    +
    VmaDefragmentationStats::bytesMoved
    VkDeviceSize bytesMoved
    Total number of bytes that have been copied while moving allocations to different places...
    Definition: vk_mem_alloc.h:2361
    +
    VmaVulkanFunctions
    Pointers to some Vulkan functions - a subset used by the library.
    Definition: vk_mem_alloc.h:1429
    vmaCreateAllocator
    VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)
    Creates Allocator object.
    -
    VmaStatInfo::unusedRangeCount
    uint32_t unusedRangeCount
    Number of free ranges of memory between allocations.
    Definition: vk_mem_alloc.h:1627
    -
    VMA_MEMORY_USAGE_UNKNOWN
    Definition: vk_mem_alloc.h:1682
    -
    VmaPoolCreateFlags
    VkFlags VmaPoolCreateFlags
    Definition: vk_mem_alloc.h:1942
    +
    VmaStatInfo::unusedRangeCount
    uint32_t unusedRangeCount
    Number of free ranges of memory between allocations.
    Definition: vk_mem_alloc.h:1628
    +
    VMA_MEMORY_USAGE_UNKNOWN
    Definition: vk_mem_alloc.h:1683
    +
    VmaPoolCreateFlags
    VkFlags VmaPoolCreateFlags
    Definition: vk_mem_alloc.h:1943
    vmaGetPhysicalDeviceProperties
    void vmaGetPhysicalDeviceProperties(VmaAllocator allocator, const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
    -
    VmaRecordSettings
    Parameters for recording calls to VMA functions. To be used in VmaAllocatorCreateInfo::pRecordSetting...
    Definition: vk_mem_alloc.h:1477
    -
    VmaStatInfo::allocationCount
    uint32_t allocationCount
    Number of VmaAllocation allocation objects allocated.
    Definition: vk_mem_alloc.h:1625
    -
    VmaVulkanFunctions::vkGetImageMemoryRequirements
    PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements
    Definition: vk_mem_alloc.h:1440
    -
    VmaVulkanFunctions::vkDestroyImage
    PFN_vkDestroyImage vkDestroyImage
    Definition: vk_mem_alloc.h:1444
    -
    VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT
    Set this flag to only try to allocate from existing VkDeviceMemory blocks and never create new such b...
    Definition: vk_mem_alloc.h:1753
    -
    VMA_MEMORY_USAGE_CPU_ONLY
    Definition: vk_mem_alloc.h:1709
    -
    VmaAllocationInfo::pMappedData
    void * pMappedData
    Pointer to the beginning of this allocation as mapped data.
    Definition: vk_mem_alloc.h:2128
    +
    VmaRecordSettings
    Parameters for recording calls to VMA functions. To be used in VmaAllocatorCreateInfo::pRecordSetting...
    Definition: vk_mem_alloc.h:1478
    +
    VmaStatInfo::allocationCount
    uint32_t allocationCount
    Number of VmaAllocation allocation objects allocated.
    Definition: vk_mem_alloc.h:1626
    +
    VmaVulkanFunctions::vkGetImageMemoryRequirements
    PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements
    Definition: vk_mem_alloc.h:1441
    +
    VmaVulkanFunctions::vkDestroyImage
    PFN_vkDestroyImage vkDestroyImage
    Definition: vk_mem_alloc.h:1445
    +
    VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT
    Set this flag to only try to allocate from existing VkDeviceMemory blocks and never create new such b...
    Definition: vk_mem_alloc.h:1754
    +
    VMA_MEMORY_USAGE_CPU_ONLY
    Definition: vk_mem_alloc.h:1710
    +
    VmaAllocationInfo::pMappedData
    void * pMappedData
    Pointer to the beginning of this allocation as mapped data.
    Definition: vk_mem_alloc.h:2129
    vmaDestroyImage
    void vmaDestroyImage(VmaAllocator allocator, VkImage image, VmaAllocation allocation)
    Destroys Vulkan image and frees allocated memory.
    -
    VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT
    Enables usage of VK_KHR_dedicated_allocation extension.
    Definition: vk_mem_alloc.h:1418
    +
    VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT
    Enables usage of VK_KHR_dedicated_allocation extension.
    Definition: vk_mem_alloc.h:1419
    VmaDefragmentationStats
    struct VmaDefragmentationStats VmaDefragmentationStats
    Statistics returned by function vmaDefragment().
    -
    VmaVulkanFunctions::vkAllocateMemory
    PFN_vkAllocateMemory vkAllocateMemory
    Definition: vk_mem_alloc.h:1431
    -
    VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT
    Enables alternative, linear allocation algorithm in this pool.
    Definition: vk_mem_alloc.h:1938
    -
    VmaAllocationInfo
    Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().
    Definition: vk_mem_alloc.h:2095
    +
    VmaVulkanFunctions::vkAllocateMemory
    PFN_vkAllocateMemory vkAllocateMemory
    Definition: vk_mem_alloc.h:1432
    +
    VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT
    Enables alternative, linear allocation algorithm in this pool.
    Definition: vk_mem_alloc.h:1939
    +
    VmaAllocationInfo
    Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().
    Definition: vk_mem_alloc.h:2096
    vmaAllocateMemory
    VkResult vmaAllocateMemory(VmaAllocator allocator, const VkMemoryRequirements *pVkMemoryRequirements, const VmaAllocationCreateInfo *pCreateInfo, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)
    General purpose memory allocation.
    vmaSetCurrentFrameIndex
    void vmaSetCurrentFrameIndex(VmaAllocator allocator, uint32_t frameIndex)
    Sets index of the current frame.
    VmaAllocationCreateInfo
    struct VmaAllocationCreateInfo VmaAllocationCreateInfo
    vmaAllocateMemoryForBuffer
    VkResult vmaAllocateMemoryForBuffer(VmaAllocator allocator, VkBuffer buffer, const VmaAllocationCreateInfo *pCreateInfo, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)
    -
    VmaPoolCreateFlagBits
    VmaPoolCreateFlagBits
    Flags to be passed as VmaPoolCreateInfo::flags.
    Definition: vk_mem_alloc.h:1905
    -
    VmaStatInfo::unusedRangeSizeAvg
    VkDeviceSize unusedRangeSizeAvg
    Definition: vk_mem_alloc.h:1633
    +
    VmaPoolCreateFlagBits
    VmaPoolCreateFlagBits
    Flags to be passed as VmaPoolCreateInfo::flags.
    Definition: vk_mem_alloc.h:1906
    +
    VmaStatInfo::unusedRangeSizeAvg
    VkDeviceSize unusedRangeSizeAvg
    Definition: vk_mem_alloc.h:1634
    vmaTouchAllocation
    VkBool32 vmaTouchAllocation(VmaAllocator allocator, VmaAllocation allocation)
    Returns VK_TRUE if allocation is not lost and atomically marks it as used in current frame...
    -
    VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT
    Definition: vk_mem_alloc.h:1792
    -
    VmaRecordFlagBits
    VmaRecordFlagBits
    Flags to be used in VmaRecordSettings::flags.
    Definition: vk_mem_alloc.h:1452
    -
    VmaStats::memoryHeap
    VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS]
    Definition: vk_mem_alloc.h:1640
    +
    VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT
    Definition: vk_mem_alloc.h:1793
    +
    VmaRecordFlagBits
    VmaRecordFlagBits
    Flags to be used in VmaRecordSettings::flags.
    Definition: vk_mem_alloc.h:1453
    +
    VmaStats::memoryHeap
    VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS]
    Definition: vk_mem_alloc.h:1641
    vmaDestroyBuffer
    void vmaDestroyBuffer(VmaAllocator allocator, VkBuffer buffer, VmaAllocation allocation)
    Destroys Vulkan buffer and frees allocated memory.
    -
    VmaPoolStats::unusedSize
    VkDeviceSize unusedSize
    Total number of bytes in the pool not used by any VmaAllocation.
    Definition: vk_mem_alloc.h:1996
    -
    VmaStatInfo::unusedRangeSizeMax
    VkDeviceSize unusedRangeSizeMax
    Definition: vk_mem_alloc.h:1633
    +
    VmaPoolStats::unusedSize
    VkDeviceSize unusedSize
    Total number of bytes in the pool not used by any VmaAllocation.
    Definition: vk_mem_alloc.h:1997
    +
    VmaStatInfo::unusedRangeSizeMax
    VkDeviceSize unusedRangeSizeMax
    Definition: vk_mem_alloc.h:1634
    VmaRecordSettings
    struct VmaRecordSettings VmaRecordSettings
    Parameters for recording calls to VMA functions. To be used in VmaAllocatorCreateInfo::pRecordSetting...
    -
    VmaAllocationInfo::memoryType
    uint32_t memoryType
    Memory type index that this allocation was allocated from.
    Definition: vk_mem_alloc.h:2100
    +
    VmaAllocationInfo::memoryType
    uint32_t memoryType
    Memory type index that this allocation was allocated from.
    Definition: vk_mem_alloc.h:2101
    diff --git a/src/vk_mem_alloc.h b/src/vk_mem_alloc.h index 697b733..4208a4a 100644 --- a/src/vk_mem_alloc.h +++ b/src/vk_mem_alloc.h @@ -84,6 +84,7 @@ Documentation of all members: vk_mem_alloc.h - \subpage vk_khr_dedicated_allocation - \subpage general_considerations - [Thread safety](@ref general_considerations_thread_safety) + - [Validation layer warnings](@ref general_considerations_validation_layer_warnings) - [Allocation algorithm](@ref general_considerations_allocation_algorithm) - [Features not supported](@ref general_considerations_features_not_supported)