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Minor improvement in VmaBlockVector::Allocate. TestPool_SameSize: Added test for it.

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This commit is contained in:
Adam Sawicki 2018-06-11 12:48:46 +02:00
parent c1af66a549
commit d292417cdb
2 changed files with 23 additions and 0 deletions
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17
src/Tests.cpp
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@ -1585,6 +1585,23 @@ static void TestPool_SameSize()
items.clear();
////////////////////////////////////////////////////////////////////////////////
// Test for allocation too large for pool
{
VmaAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.pool = pool;
VkMemoryRequirements memReq;
memReq.memoryTypeBits = UINT32_MAX;
memReq.alignment = 1;
memReq.size = poolCreateInfo.blockSize + 4;
VmaAllocation alloc = nullptr;
res = vmaAllocateMemory(g_hAllocator, &memReq, &allocCreateInfo, &alloc, nullptr);
assert(res == VK_ERROR_OUT_OF_DEVICE_MEMORY && alloc == nullptr);
}
vmaDestroyPool(g_hAllocator, pool);
}

6
src/vk_mem_alloc.h
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@ -6694,6 +6694,12 @@ VkResult VmaBlockVector::Allocate(
VmaSuballocationType suballocType,
VmaAllocation* pAllocation)
{
// Early reject: requested allocation size is larger that maximum block size for this block vector.
if(size > m_PreferredBlockSize)
{
return VK_ERROR_OUT_OF_DEVICE_MEMORY;
}
const bool mapped = (createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
const bool isUserDataString = (createInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0;