/* * Copyright (c) 2015-2016 The Khronos Group Inc. * Copyright (c) 2015-2016 Valve Corporation * Copyright (c) 2015-2016 LunarG, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Author: Chia-I Wu * Author: Cody Northrop * Author: Courtney Goeltzenleuchter * Author: Ian Elliott * Author: Jon Ashburn * Author: Piers Daniell * Author: Gwan-gyeong Mun * Porter: Camilla Löwy */ /* * Draw a textured triangle with depth testing. This is written against Intel * ICD. It does not do state transition nor object memory binding like it * should. It also does no error checking. */ #include #include #include #include #include #include #ifdef _WIN32 #include #endif #include #define GLFW_INCLUDE_NONE #include #define DEMO_TEXTURE_COUNT 1 #define VERTEX_BUFFER_BIND_ID 0 #define APP_SHORT_NAME "tri" #define APP_LONG_NAME "The Vulkan Triangle Demo Program" #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) #if defined(NDEBUG) && defined(__GNUC__) #define U_ASSERT_ONLY __attribute__((unused)) #else #define U_ASSERT_ONLY #endif #define ERR_EXIT(err_msg, err_class) \ do { \ printf(err_msg); \ fflush(stdout); \ exit(1); \ } while (0) static GLADapiproc glad_vulkan_callback(const char* name, void* user) { return glfwGetInstanceProcAddress((VkInstance) user, name); } static const char fragShaderCode[] = { 0x03, 0x02, 0x23, 0x07, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x08, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x06, 0x00, 0x01, 0x00, 0x00, 0x00, 0x47, 0x4c, 0x53, 0x4c, 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validation_error = 0; VKAPI_ATTR VkBool32 VKAPI_CALL BreakCallback(VkFlags msgFlags, VkDebugReportObjectTypeEXT objType, uint64_t srcObject, size_t location, int32_t msgCode, const char *pLayerPrefix, const char *pMsg, void *pUserData) { #ifdef _WIN32 DebugBreak(); #else raise(SIGTRAP); #endif return false; } typedef struct { VkImage image; VkCommandBuffer cmd; VkImageView view; } SwapchainBuffers; struct demo { GLFWwindow* window; VkSurfaceKHR surface; bool use_staging_buffer; VkInstance inst; VkPhysicalDevice gpu; VkDevice device; VkQueue queue; VkPhysicalDeviceProperties gpu_props; VkPhysicalDeviceFeatures gpu_features; VkQueueFamilyProperties *queue_props; uint32_t graphics_queue_node_index; uint32_t enabled_extension_count; uint32_t enabled_layer_count; const char *extension_names[64]; const char *enabled_layers[64]; int width, height; VkFormat format; VkColorSpaceKHR color_space; uint32_t swapchainImageCount; VkSwapchainKHR swapchain; SwapchainBuffers *buffers; VkCommandPool cmd_pool; struct { VkFormat format; VkImage image; VkDeviceMemory mem; VkImageView view; } depth; struct texture_object textures[DEMO_TEXTURE_COUNT]; struct { VkBuffer buf; VkDeviceMemory mem; VkPipelineVertexInputStateCreateInfo vi; VkVertexInputBindingDescription vi_bindings[1]; VkVertexInputAttributeDescription vi_attrs[2]; } vertices; VkCommandBuffer setup_cmd; // Command Buffer for initialization commands VkCommandBuffer draw_cmd; // Command Buffer for drawing commands VkPipelineLayout pipeline_layout; VkDescriptorSetLayout desc_layout; VkPipelineCache pipelineCache; VkRenderPass render_pass; VkPipeline pipeline; VkShaderModule vert_shader_module; VkShaderModule frag_shader_module; VkDescriptorPool desc_pool; VkDescriptorSet desc_set; VkFramebuffer *framebuffers; VkPhysicalDeviceMemoryProperties memory_properties; int32_t curFrame; int32_t frameCount; bool validate; bool use_break; VkDebugReportCallbackEXT msg_callback; float depthStencil; float depthIncrement; uint32_t current_buffer; uint32_t queue_count; }; VKAPI_ATTR VkBool32 VKAPI_CALL dbgFunc(VkFlags msgFlags, VkDebugReportObjectTypeEXT objType, uint64_t srcObject, size_t location, int32_t msgCode, const char *pLayerPrefix, const char *pMsg, void *pUserData) { char *message = (char *)malloc(strlen(pMsg) + 100); assert(message); validation_error = 1; if (msgFlags & VK_DEBUG_REPORT_ERROR_BIT_EXT) { sprintf(message, "ERROR: [%s] Code %d : %s", pLayerPrefix, msgCode, pMsg); } else if (msgFlags & VK_DEBUG_REPORT_WARNING_BIT_EXT) { sprintf(message, "WARNING: [%s] Code %d : %s", pLayerPrefix, msgCode, pMsg); } else { return false; } printf("%s\n", message); fflush(stdout); free(message); /* * false indicates that layer should not bail-out of an * API call that had validation failures. This may mean that the * app dies inside the driver due to invalid parameter(s). * That's what would happen without validation layers, so we'll * keep that behavior here. */ return false; } // Forward declaration: static void demo_resize(struct demo *demo); static bool memory_type_from_properties(struct demo *demo, uint32_t typeBits, VkFlags requirements_mask, uint32_t *typeIndex) { uint32_t i; // Search memtypes to find first index with those properties for (i = 0; i < VK_MAX_MEMORY_TYPES; i++) { if ((typeBits & 1) == 1) { // Type is available, does it match user properties? if ((demo->memory_properties.memoryTypes[i].propertyFlags & requirements_mask) == requirements_mask) { *typeIndex = i; return true; } } typeBits >>= 1; } // No memory types matched, return failure return false; } static void demo_flush_init_cmd(struct demo *demo) { VkResult U_ASSERT_ONLY err; if (demo->setup_cmd == VK_NULL_HANDLE) return; err = vkEndCommandBuffer(demo->setup_cmd); assert(!err); const VkCommandBuffer cmd_bufs[] = {demo->setup_cmd}; VkFence nullFence = {VK_NULL_HANDLE}; VkSubmitInfo submit_info = {.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO, .pNext = NULL, .waitSemaphoreCount = 0, .pWaitSemaphores = NULL, .pWaitDstStageMask = NULL, .commandBufferCount = 1, .pCommandBuffers = cmd_bufs, .signalSemaphoreCount = 0, .pSignalSemaphores = NULL}; err = vkQueueSubmit(demo->queue, 1, &submit_info, nullFence); assert(!err); err = vkQueueWaitIdle(demo->queue); assert(!err); vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, cmd_bufs); demo->setup_cmd = VK_NULL_HANDLE; } static void demo_set_image_layout(struct demo *demo, VkImage image, VkImageAspectFlags aspectMask, VkImageLayout old_image_layout, VkImageLayout new_image_layout, VkAccessFlagBits srcAccessMask) { VkResult U_ASSERT_ONLY err; if (demo->setup_cmd == VK_NULL_HANDLE) { const VkCommandBufferAllocateInfo cmd = { .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, .pNext = NULL, .commandPool = demo->cmd_pool, .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, .commandBufferCount = 1, }; err = vkAllocateCommandBuffers(demo->device, &cmd, &demo->setup_cmd); assert(!err); VkCommandBufferBeginInfo cmd_buf_info = { .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, .pNext = NULL, .flags = 0, .pInheritanceInfo = NULL, }; err = vkBeginCommandBuffer(demo->setup_cmd, &cmd_buf_info); assert(!err); } VkImageMemoryBarrier image_memory_barrier = { .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, .pNext = NULL, .srcAccessMask = srcAccessMask, .dstAccessMask = 0, .oldLayout = old_image_layout, .newLayout = new_image_layout, .image = image, .subresourceRange = {aspectMask, 0, 1, 0, 1}}; if (new_image_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) { /* Make sure anything that was copying from this image has completed */ image_memory_barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; } if (new_image_layout == VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL) { image_memory_barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; } if (new_image_layout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL) { image_memory_barrier.dstAccessMask = VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT; } if (new_image_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { /* Make sure any Copy or CPU writes to image are flushed */ image_memory_barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_INPUT_ATTACHMENT_READ_BIT; } VkImageMemoryBarrier *pmemory_barrier = &image_memory_barrier; VkPipelineStageFlags src_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; VkPipelineStageFlags dest_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; vkCmdPipelineBarrier(demo->setup_cmd, src_stages, dest_stages, 0, 0, NULL, 0, NULL, 1, pmemory_barrier); } static void demo_draw_build_cmd(struct demo *demo) { const VkCommandBufferBeginInfo cmd_buf_info = { .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, .pNext = NULL, .flags = 0, .pInheritanceInfo = NULL, }; const VkClearValue clear_values[2] = { [0] = {.color.float32 = {0.2f, 0.2f, 0.2f, 0.2f}}, [1] = {.depthStencil = {demo->depthStencil, 0}}, }; const VkRenderPassBeginInfo rp_begin = { .sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, .pNext = NULL, .renderPass = demo->render_pass, .framebuffer = demo->framebuffers[demo->current_buffer], .renderArea.offset.x = 0, .renderArea.offset.y = 0, .renderArea.extent.width = demo->width, .renderArea.extent.height = demo->height, .clearValueCount = 2, .pClearValues = clear_values, }; VkResult U_ASSERT_ONLY err; err = vkBeginCommandBuffer(demo->draw_cmd, &cmd_buf_info); assert(!err); // We can use LAYOUT_UNDEFINED as a wildcard here because we don't care what // happens to the previous contents of the image VkImageMemoryBarrier image_memory_barrier = { .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, .pNext = NULL, .srcAccessMask = 0, .dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, .oldLayout = VK_IMAGE_LAYOUT_UNDEFINED, .newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, .image = demo->buffers[demo->current_buffer].image, .subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}}; vkCmdPipelineBarrier(demo->draw_cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0, NULL, 1, &image_memory_barrier); vkCmdBeginRenderPass(demo->draw_cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE); vkCmdBindPipeline(demo->draw_cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, demo->pipeline); vkCmdBindDescriptorSets(demo->draw_cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, demo->pipeline_layout, 0, 1, &demo->desc_set, 0, NULL); VkViewport viewport; memset(&viewport, 0, sizeof(viewport)); viewport.height = (float)demo->height; viewport.width = (float)demo->width; viewport.minDepth = (float)0.0f; viewport.maxDepth = (float)1.0f; vkCmdSetViewport(demo->draw_cmd, 0, 1, &viewport); VkRect2D scissor; memset(&scissor, 0, sizeof(scissor)); scissor.extent.width = demo->width; scissor.extent.height = demo->height; scissor.offset.x = 0; scissor.offset.y = 0; vkCmdSetScissor(demo->draw_cmd, 0, 1, &scissor); VkDeviceSize offsets[1] = {0}; vkCmdBindVertexBuffers(demo->draw_cmd, VERTEX_BUFFER_BIND_ID, 1, &demo->vertices.buf, offsets); vkCmdDraw(demo->draw_cmd, 3, 1, 0, 0); vkCmdEndRenderPass(demo->draw_cmd); VkImageMemoryBarrier prePresentBarrier = { .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, .pNext = NULL, .srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, .dstAccessMask = VK_ACCESS_MEMORY_READ_BIT, .oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, .newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, .subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}}; prePresentBarrier.image = demo->buffers[demo->current_buffer].image; VkImageMemoryBarrier *pmemory_barrier = &prePresentBarrier; vkCmdPipelineBarrier(demo->draw_cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0, NULL, 1, pmemory_barrier); err = vkEndCommandBuffer(demo->draw_cmd); assert(!err); } static void demo_draw(struct demo *demo) { VkResult U_ASSERT_ONLY err; VkSemaphore imageAcquiredSemaphore, drawCompleteSemaphore; VkSemaphoreCreateInfo semaphoreCreateInfo = { .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO, .pNext = NULL, .flags = 0, }; err = vkCreateSemaphore(demo->device, &semaphoreCreateInfo, NULL, &imageAcquiredSemaphore); assert(!err); err = vkCreateSemaphore(demo->device, &semaphoreCreateInfo, NULL, &drawCompleteSemaphore); assert(!err); // Get the index of the next available swapchain image: err = vkAcquireNextImageKHR(demo->device, demo->swapchain, UINT64_MAX, imageAcquiredSemaphore, (VkFence)0, // TODO: Show use of fence &demo->current_buffer); if (err == VK_ERROR_OUT_OF_DATE_KHR) { // demo->swapchain is out of date (e.g. the window was resized) and // must be recreated: demo_resize(demo); demo_draw(demo); vkDestroySemaphore(demo->device, imageAcquiredSemaphore, NULL); vkDestroySemaphore(demo->device, drawCompleteSemaphore, NULL); return; } else if (err == VK_SUBOPTIMAL_KHR) { // demo->swapchain is not as optimal as it could be, but the platform's // presentation engine will still present the image correctly. } else { assert(!err); } demo_flush_init_cmd(demo); // Wait for the present complete semaphore to be signaled to ensure // that the image won't be rendered to until the presentation // engine has fully released ownership to the application, and it is // okay to render to the image. demo_draw_build_cmd(demo); VkFence nullFence = VK_NULL_HANDLE; VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT; VkSubmitInfo submit_info = {.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO, .pNext = NULL, .waitSemaphoreCount = 1, .pWaitSemaphores = &imageAcquiredSemaphore, .pWaitDstStageMask = &pipe_stage_flags, .commandBufferCount = 1, .pCommandBuffers = &demo->draw_cmd, .signalSemaphoreCount = 1, .pSignalSemaphores = &drawCompleteSemaphore}; err = vkQueueSubmit(demo->queue, 1, &submit_info, nullFence); assert(!err); VkPresentInfoKHR present = { .sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, .pNext = NULL, .waitSemaphoreCount = 1, .pWaitSemaphores = &drawCompleteSemaphore, .swapchainCount = 1, .pSwapchains = &demo->swapchain, .pImageIndices = &demo->current_buffer, }; err = vkQueuePresentKHR(demo->queue, &present); if (err == VK_ERROR_OUT_OF_DATE_KHR) { // demo->swapchain is out of date (e.g. the window was resized) and // must be recreated: demo_resize(demo); } else if (err == VK_SUBOPTIMAL_KHR) { // demo->swapchain is not as optimal as it could be, but the platform's // presentation engine will still present the image correctly. } else { assert(!err); } err = vkQueueWaitIdle(demo->queue); assert(err == VK_SUCCESS); vkDestroySemaphore(demo->device, imageAcquiredSemaphore, NULL); vkDestroySemaphore(demo->device, drawCompleteSemaphore, NULL); } static void demo_prepare_buffers(struct demo *demo) { VkResult U_ASSERT_ONLY err; VkSwapchainKHR oldSwapchain = demo->swapchain; // Check the surface capabilities and formats VkSurfaceCapabilitiesKHR surfCapabilities; err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR( demo->gpu, demo->surface, &surfCapabilities); assert(!err); uint32_t presentModeCount; err = vkGetPhysicalDeviceSurfacePresentModesKHR( demo->gpu, demo->surface, &presentModeCount, NULL); assert(!err); VkPresentModeKHR *presentModes = (VkPresentModeKHR *)malloc(presentModeCount * sizeof(VkPresentModeKHR)); assert(presentModes); err = vkGetPhysicalDeviceSurfacePresentModesKHR( demo->gpu, demo->surface, &presentModeCount, presentModes); assert(!err); VkExtent2D swapchainExtent; // width and height are either both 0xFFFFFFFF, or both not 0xFFFFFFFF. if (surfCapabilities.currentExtent.width == 0xFFFFFFFF) { // If the surface size is undefined, the size is set to the size // of the images requested, which must fit within the minimum and // maximum values. swapchainExtent.width = demo->width; swapchainExtent.height = demo->height; if (swapchainExtent.width < surfCapabilities.minImageExtent.width) { swapchainExtent.width = surfCapabilities.minImageExtent.width; } else if (swapchainExtent.width > surfCapabilities.maxImageExtent.width) { swapchainExtent.width = surfCapabilities.maxImageExtent.width; } if (swapchainExtent.height < surfCapabilities.minImageExtent.height) { swapchainExtent.height = surfCapabilities.minImageExtent.height; } else if (swapchainExtent.height > surfCapabilities.maxImageExtent.height) { swapchainExtent.height = surfCapabilities.maxImageExtent.height; } } else { // If the surface size is defined, the swap chain size must match swapchainExtent = surfCapabilities.currentExtent; demo->width = surfCapabilities.currentExtent.width; demo->height = surfCapabilities.currentExtent.height; } VkPresentModeKHR swapchainPresentMode = VK_PRESENT_MODE_FIFO_KHR; // Determine the number of VkImage's to use in the swap chain. // Application desires to only acquire 1 image at a time (which is // "surfCapabilities.minImageCount"). uint32_t desiredNumOfSwapchainImages = surfCapabilities.minImageCount; // If maxImageCount is 0, we can ask for as many images as we want; // otherwise we're limited to maxImageCount if ((surfCapabilities.maxImageCount > 0) && (desiredNumOfSwapchainImages > surfCapabilities.maxImageCount)) { // Application must settle for fewer images than desired: desiredNumOfSwapchainImages = surfCapabilities.maxImageCount; } VkSurfaceTransformFlagsKHR preTransform; if (surfCapabilities.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) { preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR; } else { preTransform = surfCapabilities.currentTransform; } const VkSwapchainCreateInfoKHR swapchain = { .sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR, .pNext = NULL, .surface = demo->surface, .minImageCount = desiredNumOfSwapchainImages, .imageFormat = demo->format, .imageColorSpace = demo->color_space, .imageExtent = { .width = swapchainExtent.width, .height = swapchainExtent.height, }, .imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, .preTransform = preTransform, .compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR, .imageArrayLayers = 1, .imageSharingMode = VK_SHARING_MODE_EXCLUSIVE, .queueFamilyIndexCount = 0, .pQueueFamilyIndices = NULL, .presentMode = swapchainPresentMode, .oldSwapchain = oldSwapchain, .clipped = true, }; uint32_t i; err = vkCreateSwapchainKHR(demo->device, &swapchain, NULL, &demo->swapchain); assert(!err); // If we just re-created an existing swapchain, we should destroy the old // swapchain at this point. // Note: destroying the swapchain also cleans up all its associated // presentable images once the platform is done with them. if (oldSwapchain != VK_NULL_HANDLE) { vkDestroySwapchainKHR(demo->device, oldSwapchain, NULL); } err = vkGetSwapchainImagesKHR(demo->device, demo->swapchain, &demo->swapchainImageCount, NULL); assert(!err); VkImage *swapchainImages = (VkImage *)malloc(demo->swapchainImageCount * sizeof(VkImage)); assert(swapchainImages); err = vkGetSwapchainImagesKHR(demo->device, demo->swapchain, &demo->swapchainImageCount, swapchainImages); assert(!err); demo->buffers = (SwapchainBuffers *)malloc(sizeof(SwapchainBuffers) * demo->swapchainImageCount); assert(demo->buffers); for (i = 0; i < demo->swapchainImageCount; i++) { VkImageViewCreateInfo color_attachment_view = { .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, .pNext = NULL, .format = demo->format, .components = { .r = VK_COMPONENT_SWIZZLE_R, .g = VK_COMPONENT_SWIZZLE_G, .b = VK_COMPONENT_SWIZZLE_B, .a = VK_COMPONENT_SWIZZLE_A, }, .subresourceRange = {.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, .baseMipLevel = 0, .levelCount = 1, .baseArrayLayer = 0, .layerCount = 1}, .viewType = VK_IMAGE_VIEW_TYPE_2D, .flags = 0, }; demo->buffers[i].image = swapchainImages[i]; color_attachment_view.image = demo->buffers[i].image; err = vkCreateImageView(demo->device, &color_attachment_view, NULL, &demo->buffers[i].view); assert(!err); } demo->current_buffer = 0; if (NULL != presentModes) { free(presentModes); } } static void demo_prepare_depth(struct demo *demo) { const VkFormat depth_format = VK_FORMAT_D16_UNORM; const VkImageCreateInfo image = { .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, .pNext = NULL, .imageType = VK_IMAGE_TYPE_2D, .format = depth_format, .extent = {demo->width, demo->height, 1}, .mipLevels = 1, .arrayLayers = 1, .samples = VK_SAMPLE_COUNT_1_BIT, .tiling = VK_IMAGE_TILING_OPTIMAL, .usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, .flags = 0, }; VkMemoryAllocateInfo mem_alloc = { .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, .pNext = NULL, .allocationSize = 0, .memoryTypeIndex = 0, }; VkImageViewCreateInfo view = { .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, .pNext = NULL, .image = VK_NULL_HANDLE, .format = depth_format, .subresourceRange = {.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT, .baseMipLevel = 0, .levelCount = 1, .baseArrayLayer = 0, .layerCount = 1}, .flags = 0, .viewType = VK_IMAGE_VIEW_TYPE_2D, }; VkMemoryRequirements mem_reqs; VkResult U_ASSERT_ONLY err; bool U_ASSERT_ONLY pass; demo->depth.format = depth_format; /* create image */ err = vkCreateImage(demo->device, &image, NULL, &demo->depth.image); assert(!err); /* get memory requirements for this object */ vkGetImageMemoryRequirements(demo->device, demo->depth.image, &mem_reqs); /* select memory size and type */ mem_alloc.allocationSize = mem_reqs.size; pass = memory_type_from_properties(demo, mem_reqs.memoryTypeBits, 0, /* No requirements */ &mem_alloc.memoryTypeIndex); assert(pass); /* allocate memory */ err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &demo->depth.mem); assert(!err); /* bind memory */ err = vkBindImageMemory(demo->device, demo->depth.image, demo->depth.mem, 0); assert(!err); demo_set_image_layout(demo, demo->depth.image, VK_IMAGE_ASPECT_DEPTH_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, 0); /* create image view */ view.image = demo->depth.image; err = vkCreateImageView(demo->device, &view, NULL, &demo->depth.view); assert(!err); } static void demo_prepare_texture_image(struct demo *demo, const uint32_t *tex_colors, struct texture_object *tex_obj, VkImageTiling tiling, VkImageUsageFlags usage, VkFlags required_props) { const VkFormat tex_format = VK_FORMAT_B8G8R8A8_UNORM; const int32_t tex_width = 2; const int32_t tex_height = 2; VkResult U_ASSERT_ONLY err; bool U_ASSERT_ONLY pass; tex_obj->tex_width = tex_width; tex_obj->tex_height = tex_height; const VkImageCreateInfo image_create_info = { .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, .pNext = NULL, .imageType = VK_IMAGE_TYPE_2D, .format = tex_format, .extent = {tex_width, tex_height, 1}, .mipLevels = 1, .arrayLayers = 1, .samples = VK_SAMPLE_COUNT_1_BIT, .tiling = tiling, .usage = usage, .flags = 0, .initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED }; VkMemoryAllocateInfo mem_alloc = { .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, .pNext = NULL, .allocationSize = 0, .memoryTypeIndex = 0, }; VkMemoryRequirements mem_reqs; err = vkCreateImage(demo->device, &image_create_info, NULL, &tex_obj->image); assert(!err); vkGetImageMemoryRequirements(demo->device, tex_obj->image, &mem_reqs); mem_alloc.allocationSize = mem_reqs.size; pass = memory_type_from_properties(demo, mem_reqs.memoryTypeBits, required_props, &mem_alloc.memoryTypeIndex); assert(pass); /* allocate memory */ err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &tex_obj->mem); assert(!err); /* bind memory */ err = vkBindImageMemory(demo->device, tex_obj->image, tex_obj->mem, 0); assert(!err); if (required_props & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) { const VkImageSubresource subres = { .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, .mipLevel = 0, .arrayLayer = 0, }; VkSubresourceLayout layout; void *data; int32_t x, y; vkGetImageSubresourceLayout(demo->device, tex_obj->image, &subres, &layout); err = vkMapMemory(demo->device, tex_obj->mem, 0, mem_alloc.allocationSize, 0, &data); assert(!err); for (y = 0; y < tex_height; y++) { uint32_t *row = (uint32_t *)((char *)data + layout.rowPitch * y); for (x = 0; x < tex_width; x++) row[x] = tex_colors[(x & 1) ^ (y & 1)]; } vkUnmapMemory(demo->device, tex_obj->mem); } tex_obj->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; demo_set_image_layout(demo, tex_obj->image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_PREINITIALIZED, tex_obj->imageLayout, VK_ACCESS_HOST_WRITE_BIT); /* setting the image layout does not reference the actual memory so no need * to add a mem ref */ } static void demo_destroy_texture_image(struct demo *demo, struct texture_object *tex_obj) { /* clean up staging resources */ vkDestroyImage(demo->device, tex_obj->image, NULL); vkFreeMemory(demo->device, tex_obj->mem, NULL); } static void demo_prepare_textures(struct demo *demo) { const VkFormat tex_format = VK_FORMAT_B8G8R8A8_UNORM; VkFormatProperties props; const uint32_t tex_colors[DEMO_TEXTURE_COUNT][2] = { {0xffff0000, 0xff00ff00}, }; uint32_t i; VkResult U_ASSERT_ONLY err; vkGetPhysicalDeviceFormatProperties(demo->gpu, tex_format, &props); for (i = 0; i < DEMO_TEXTURE_COUNT; i++) { if ((props.linearTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT) && !demo->use_staging_buffer) { /* Device can texture using linear textures */ demo_prepare_texture_image( demo, tex_colors[i], &demo->textures[i], VK_IMAGE_TILING_LINEAR, VK_IMAGE_USAGE_SAMPLED_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT); } else if (props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT) { /* Must use staging buffer to copy linear texture to optimized */ struct texture_object staging_texture; memset(&staging_texture, 0, sizeof(staging_texture)); demo_prepare_texture_image( demo, tex_colors[i], &staging_texture, VK_IMAGE_TILING_LINEAR, VK_IMAGE_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT); demo_prepare_texture_image( demo, tex_colors[i], &demo->textures[i], VK_IMAGE_TILING_OPTIMAL, (VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT), VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT); demo_set_image_layout(demo, staging_texture.image, VK_IMAGE_ASPECT_COLOR_BIT, staging_texture.imageLayout, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, 0); demo_set_image_layout(demo, demo->textures[i].image, VK_IMAGE_ASPECT_COLOR_BIT, demo->textures[i].imageLayout, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 0); VkImageCopy copy_region = { .srcSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1}, .srcOffset = {0, 0, 0}, .dstSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1}, .dstOffset = {0, 0, 0}, .extent = {staging_texture.tex_width, staging_texture.tex_height, 1}, }; vkCmdCopyImage( demo->setup_cmd, staging_texture.image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, demo->textures[i].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ©_region); demo_set_image_layout(demo, demo->textures[i].image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, demo->textures[i].imageLayout, 0); demo_flush_init_cmd(demo); demo_destroy_texture_image(demo, &staging_texture); } else { /* Can't support VK_FORMAT_B8G8R8A8_UNORM !? */ assert(!"No support for B8G8R8A8_UNORM as texture image format"); } const VkSamplerCreateInfo sampler = { .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO, .pNext = NULL, .magFilter = VK_FILTER_NEAREST, .minFilter = VK_FILTER_NEAREST, .mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST, .addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT, .addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT, .addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT, .mipLodBias = 0.0f, .anisotropyEnable = VK_FALSE, .maxAnisotropy = 1, .compareOp = VK_COMPARE_OP_NEVER, .minLod = 0.0f, .maxLod = 0.0f, .borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE, .unnormalizedCoordinates = VK_FALSE, }; VkImageViewCreateInfo view = { .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, .pNext = NULL, .image = VK_NULL_HANDLE, .viewType = VK_IMAGE_VIEW_TYPE_2D, .format = tex_format, .components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A, }, .subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}, .flags = 0, }; /* create sampler */ err = vkCreateSampler(demo->device, &sampler, NULL, &demo->textures[i].sampler); assert(!err); /* create image view */ view.image = demo->textures[i].image; err = vkCreateImageView(demo->device, &view, NULL, &demo->textures[i].view); assert(!err); } } static void demo_prepare_vertices(struct demo *demo) { // clang-format off const float vb[3][5] = { /* position texcoord */ { -1.0f, -1.0f, 0.25f, 0.0f, 0.0f }, { 1.0f, -1.0f, 0.25f, 1.0f, 0.0f }, { 0.0f, 1.0f, 1.0f, 0.5f, 1.0f }, }; // clang-format on const VkBufferCreateInfo buf_info = { .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, .pNext = NULL, .size = sizeof(vb), .usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, .flags = 0, }; VkMemoryAllocateInfo mem_alloc = { .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, .pNext = NULL, .allocationSize = 0, .memoryTypeIndex = 0, }; VkMemoryRequirements mem_reqs; VkResult U_ASSERT_ONLY err; bool U_ASSERT_ONLY pass; void *data; memset(&demo->vertices, 0, sizeof(demo->vertices)); err = vkCreateBuffer(demo->device, &buf_info, NULL, &demo->vertices.buf); assert(!err); vkGetBufferMemoryRequirements(demo->device, demo->vertices.buf, &mem_reqs); assert(!err); mem_alloc.allocationSize = mem_reqs.size; pass = memory_type_from_properties(demo, mem_reqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &mem_alloc.memoryTypeIndex); assert(pass); err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &demo->vertices.mem); assert(!err); err = vkMapMemory(demo->device, demo->vertices.mem, 0, mem_alloc.allocationSize, 0, &data); assert(!err); memcpy(data, vb, sizeof(vb)); vkUnmapMemory(demo->device, demo->vertices.mem); err = vkBindBufferMemory(demo->device, demo->vertices.buf, demo->vertices.mem, 0); assert(!err); demo->vertices.vi.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO; demo->vertices.vi.pNext = NULL; demo->vertices.vi.vertexBindingDescriptionCount = 1; demo->vertices.vi.pVertexBindingDescriptions = demo->vertices.vi_bindings; demo->vertices.vi.vertexAttributeDescriptionCount = 2; demo->vertices.vi.pVertexAttributeDescriptions = demo->vertices.vi_attrs; demo->vertices.vi_bindings[0].binding = VERTEX_BUFFER_BIND_ID; demo->vertices.vi_bindings[0].stride = sizeof(vb[0]); demo->vertices.vi_bindings[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX; demo->vertices.vi_attrs[0].binding = VERTEX_BUFFER_BIND_ID; demo->vertices.vi_attrs[0].location = 0; demo->vertices.vi_attrs[0].format = VK_FORMAT_R32G32B32_SFLOAT; demo->vertices.vi_attrs[0].offset = 0; demo->vertices.vi_attrs[1].binding = VERTEX_BUFFER_BIND_ID; demo->vertices.vi_attrs[1].location = 1; demo->vertices.vi_attrs[1].format = VK_FORMAT_R32G32_SFLOAT; demo->vertices.vi_attrs[1].offset = sizeof(float) * 3; } static void demo_prepare_descriptor_layout(struct demo *demo) { const VkDescriptorSetLayoutBinding layout_binding = { .binding = 0, .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .descriptorCount = DEMO_TEXTURE_COUNT, .stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT, .pImmutableSamplers = NULL, }; const VkDescriptorSetLayoutCreateInfo descriptor_layout = { .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO, .pNext = NULL, .bindingCount = 1, .pBindings = &layout_binding, }; VkResult U_ASSERT_ONLY err; err = vkCreateDescriptorSetLayout(demo->device, &descriptor_layout, NULL, &demo->desc_layout); assert(!err); const VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = { .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, .pNext = NULL, .setLayoutCount = 1, .pSetLayouts = &demo->desc_layout, }; err = vkCreatePipelineLayout(demo->device, &pPipelineLayoutCreateInfo, NULL, &demo->pipeline_layout); assert(!err); } static void demo_prepare_render_pass(struct demo *demo) { const VkAttachmentDescription attachments[2] = { [0] = { .format = demo->format, .samples = VK_SAMPLE_COUNT_1_BIT, .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR, .storeOp = VK_ATTACHMENT_STORE_OP_STORE, .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE, .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, .initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, .finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, }, [1] = { .format = demo->depth.format, .samples = VK_SAMPLE_COUNT_1_BIT, .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR, .storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE, .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, .initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, .finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, }, }; const VkAttachmentReference color_reference = { .attachment = 0, .layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, }; const VkAttachmentReference depth_reference = { .attachment = 1, .layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, }; const VkSubpassDescription subpass = { .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS, .flags = 0, .inputAttachmentCount = 0, .pInputAttachments = NULL, .colorAttachmentCount = 1, .pColorAttachments = &color_reference, .pResolveAttachments = NULL, .pDepthStencilAttachment = &depth_reference, .preserveAttachmentCount = 0, .pPreserveAttachments = NULL, }; const VkRenderPassCreateInfo rp_info = { .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, .pNext = NULL, .attachmentCount = 2, .pAttachments = attachments, .subpassCount = 1, .pSubpasses = &subpass, .dependencyCount = 0, .pDependencies = NULL, }; VkResult U_ASSERT_ONLY err; err = vkCreateRenderPass(demo->device, &rp_info, NULL, &demo->render_pass); assert(!err); } static VkShaderModule demo_prepare_shader_module(struct demo *demo, const void *code, size_t size) { VkShaderModuleCreateInfo moduleCreateInfo; VkShaderModule module; VkResult U_ASSERT_ONLY err; moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; moduleCreateInfo.pNext = NULL; moduleCreateInfo.codeSize = size; moduleCreateInfo.pCode = code; moduleCreateInfo.flags = 0; err = vkCreateShaderModule(demo->device, &moduleCreateInfo, NULL, &module); assert(!err); return module; } static VkShaderModule demo_prepare_vs(struct demo *demo) { size_t size = sizeof(vertShaderCode); demo->vert_shader_module = demo_prepare_shader_module(demo, vertShaderCode, size); return demo->vert_shader_module; } static VkShaderModule demo_prepare_fs(struct demo *demo) { size_t size = sizeof(fragShaderCode); demo->frag_shader_module = demo_prepare_shader_module(demo, fragShaderCode, size); return demo->frag_shader_module; } static void demo_prepare_pipeline(struct demo *demo) { VkGraphicsPipelineCreateInfo pipeline; VkPipelineCacheCreateInfo pipelineCache; VkPipelineVertexInputStateCreateInfo vi; VkPipelineInputAssemblyStateCreateInfo ia; VkPipelineRasterizationStateCreateInfo rs; VkPipelineColorBlendStateCreateInfo cb; VkPipelineDepthStencilStateCreateInfo ds; VkPipelineViewportStateCreateInfo vp; VkPipelineMultisampleStateCreateInfo ms; VkDynamicState dynamicStateEnables[VK_DYNAMIC_STATE_RANGE_SIZE]; VkPipelineDynamicStateCreateInfo dynamicState; VkResult U_ASSERT_ONLY err; memset(dynamicStateEnables, 0, sizeof dynamicStateEnables); memset(&dynamicState, 0, sizeof dynamicState); dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO; dynamicState.pDynamicStates = dynamicStateEnables; memset(&pipeline, 0, sizeof(pipeline)); pipeline.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO; pipeline.layout = demo->pipeline_layout; vi = demo->vertices.vi; memset(&ia, 0, sizeof(ia)); ia.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO; ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; memset(&rs, 0, sizeof(rs)); rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO; rs.polygonMode = VK_POLYGON_MODE_FILL; rs.cullMode = VK_CULL_MODE_BACK_BIT; rs.frontFace = VK_FRONT_FACE_CLOCKWISE; rs.depthClampEnable = VK_FALSE; rs.rasterizerDiscardEnable = VK_FALSE; rs.depthBiasEnable = VK_FALSE; rs.lineWidth = 1.0f; memset(&cb, 0, sizeof(cb)); cb.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO; VkPipelineColorBlendAttachmentState att_state[1]; memset(att_state, 0, sizeof(att_state)); att_state[0].colorWriteMask = 0xf; att_state[0].blendEnable = VK_FALSE; cb.attachmentCount = 1; cb.pAttachments = att_state; memset(&vp, 0, sizeof(vp)); vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO; vp.viewportCount = 1; dynamicStateEnables[dynamicState.dynamicStateCount++] = VK_DYNAMIC_STATE_VIEWPORT; vp.scissorCount = 1; dynamicStateEnables[dynamicState.dynamicStateCount++] = VK_DYNAMIC_STATE_SCISSOR; memset(&ds, 0, sizeof(ds)); ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO; ds.depthTestEnable = VK_TRUE; ds.depthWriteEnable = VK_TRUE; ds.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL; ds.depthBoundsTestEnable = VK_FALSE; ds.back.failOp = VK_STENCIL_OP_KEEP; ds.back.passOp = VK_STENCIL_OP_KEEP; ds.back.compareOp = VK_COMPARE_OP_ALWAYS; ds.stencilTestEnable = VK_FALSE; ds.front = ds.back; memset(&ms, 0, sizeof(ms)); ms.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO; ms.pSampleMask = NULL; ms.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; // Two stages: vs and fs pipeline.stageCount = 2; VkPipelineShaderStageCreateInfo shaderStages[2]; memset(&shaderStages, 0, 2 * sizeof(VkPipelineShaderStageCreateInfo)); shaderStages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; shaderStages[0].stage = VK_SHADER_STAGE_VERTEX_BIT; shaderStages[0].module = demo_prepare_vs(demo); shaderStages[0].pName = "main"; shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT; shaderStages[1].module = demo_prepare_fs(demo); shaderStages[1].pName = "main"; pipeline.pVertexInputState = &vi; pipeline.pInputAssemblyState = &ia; pipeline.pRasterizationState = &rs; pipeline.pColorBlendState = &cb; pipeline.pMultisampleState = &ms; pipeline.pViewportState = &vp; pipeline.pDepthStencilState = &ds; pipeline.pStages = shaderStages; pipeline.renderPass = demo->render_pass; pipeline.pDynamicState = &dynamicState; memset(&pipelineCache, 0, sizeof(pipelineCache)); pipelineCache.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO; err = vkCreatePipelineCache(demo->device, &pipelineCache, NULL, &demo->pipelineCache); assert(!err); err = vkCreateGraphicsPipelines(demo->device, demo->pipelineCache, 1, &pipeline, NULL, &demo->pipeline); assert(!err); vkDestroyPipelineCache(demo->device, demo->pipelineCache, NULL); vkDestroyShaderModule(demo->device, demo->frag_shader_module, NULL); vkDestroyShaderModule(demo->device, demo->vert_shader_module, NULL); } static void demo_prepare_descriptor_pool(struct demo *demo) { const VkDescriptorPoolSize type_count = { .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .descriptorCount = DEMO_TEXTURE_COUNT, }; const VkDescriptorPoolCreateInfo descriptor_pool = { .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO, .pNext = NULL, .maxSets = 1, .poolSizeCount = 1, .pPoolSizes = &type_count, }; VkResult U_ASSERT_ONLY err; err = vkCreateDescriptorPool(demo->device, &descriptor_pool, NULL, &demo->desc_pool); assert(!err); } static void demo_prepare_descriptor_set(struct demo *demo) { VkDescriptorImageInfo tex_descs[DEMO_TEXTURE_COUNT]; VkWriteDescriptorSet write; VkResult U_ASSERT_ONLY err; uint32_t i; VkDescriptorSetAllocateInfo alloc_info = { .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO, .pNext = NULL, .descriptorPool = demo->desc_pool, .descriptorSetCount = 1, .pSetLayouts = &demo->desc_layout}; err = vkAllocateDescriptorSets(demo->device, &alloc_info, &demo->desc_set); assert(!err); memset(&tex_descs, 0, sizeof(tex_descs)); for (i = 0; i < DEMO_TEXTURE_COUNT; i++) { tex_descs[i].sampler = demo->textures[i].sampler; tex_descs[i].imageView = demo->textures[i].view; tex_descs[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL; } memset(&write, 0, sizeof(write)); write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; write.dstSet = demo->desc_set; write.descriptorCount = DEMO_TEXTURE_COUNT; write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; write.pImageInfo = tex_descs; vkUpdateDescriptorSets(demo->device, 1, &write, 0, NULL); } static void demo_prepare_framebuffers(struct demo *demo) { VkImageView attachments[2]; attachments[1] = demo->depth.view; const VkFramebufferCreateInfo fb_info = { .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, .pNext = NULL, .renderPass = demo->render_pass, .attachmentCount = 2, .pAttachments = attachments, .width = demo->width, .height = demo->height, .layers = 1, }; VkResult U_ASSERT_ONLY err; uint32_t i; demo->framebuffers = (VkFramebuffer *)malloc(demo->swapchainImageCount * sizeof(VkFramebuffer)); assert(demo->framebuffers); for (i = 0; i < demo->swapchainImageCount; i++) { attachments[0] = demo->buffers[i].view; err = vkCreateFramebuffer(demo->device, &fb_info, NULL, &demo->framebuffers[i]); assert(!err); } } static void demo_prepare(struct demo *demo) { VkResult U_ASSERT_ONLY err; const VkCommandPoolCreateInfo cmd_pool_info = { .sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, .pNext = NULL, .queueFamilyIndex = demo->graphics_queue_node_index, .flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT, }; err = vkCreateCommandPool(demo->device, &cmd_pool_info, NULL, &demo->cmd_pool); assert(!err); const VkCommandBufferAllocateInfo cmd = { .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, .pNext = NULL, .commandPool = demo->cmd_pool, .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, .commandBufferCount = 1, }; err = vkAllocateCommandBuffers(demo->device, &cmd, &demo->draw_cmd); assert(!err); demo_prepare_buffers(demo); demo_prepare_depth(demo); demo_prepare_textures(demo); demo_prepare_vertices(demo); demo_prepare_descriptor_layout(demo); demo_prepare_render_pass(demo); demo_prepare_pipeline(demo); demo_prepare_descriptor_pool(demo); demo_prepare_descriptor_set(demo); demo_prepare_framebuffers(demo); } static void demo_error_callback(int error, const char* description) { printf("GLFW error: %s\n", description); fflush(stdout); } static void demo_key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) { if (key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE) glfwSetWindowShouldClose(window, GLFW_TRUE); } static void demo_refresh_callback(GLFWwindow* window) { struct demo* demo = glfwGetWindowUserPointer(window); demo_draw(demo); } static void demo_resize_callback(GLFWwindow* window, int width, int height) { struct demo* demo = glfwGetWindowUserPointer(window); demo->width = width; demo->height = height; demo_resize(demo); } static void demo_run(struct demo *demo) { while (!glfwWindowShouldClose(demo->window)) { glfwPollEvents(); demo_draw(demo); if (demo->depthStencil > 0.99f) demo->depthIncrement = -0.001f; if (demo->depthStencil < 0.8f) demo->depthIncrement = 0.001f; demo->depthStencil += demo->depthIncrement; // Wait for work to finish before updating MVP. vkDeviceWaitIdle(demo->device); demo->curFrame++; if (demo->frameCount != INT32_MAX && demo->curFrame == demo->frameCount) glfwSetWindowShouldClose(demo->window, GLFW_TRUE); } } static void demo_create_window(struct demo *demo) { glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); demo->window = glfwCreateWindow(demo->width, demo->height, APP_LONG_NAME, NULL, NULL); if (!demo->window) { // It didn't work, so try to give a useful error: printf("Cannot create a window in which to draw!\n"); fflush(stdout); exit(1); } glfwSetWindowUserPointer(demo->window, demo); glfwSetWindowRefreshCallback(demo->window, demo_refresh_callback); glfwSetFramebufferSizeCallback(demo->window, demo_resize_callback); glfwSetKeyCallback(demo->window, demo_key_callback); } /* * Return 1 (true) if all layer names specified in check_names * can be found in given layer properties. */ static VkBool32 demo_check_layers(uint32_t check_count, const char **check_names, uint32_t layer_count, VkLayerProperties *layers) { uint32_t i, j; for (i = 0; i < check_count; i++) { VkBool32 found = 0; for (j = 0; j < layer_count; j++) { if (!strcmp(check_names[i], layers[j].layerName)) { found = 1; break; } } if (!found) { fprintf(stderr, "Cannot find layer: %s\n", check_names[i]); return 0; } } return 1; } static void demo_init_vk(struct demo *demo) { VkResult err; uint32_t i = 0; uint32_t required_extension_count = 0; uint32_t instance_extension_count = 0; uint32_t instance_layer_count = 0; uint32_t validation_layer_count = 0; const char **required_extensions = NULL; const char **instance_validation_layers = NULL; demo->enabled_extension_count = 0; demo->enabled_layer_count = 0; char *instance_validation_layers_alt1[] = { "VK_LAYER_LUNARG_standard_validation" }; char *instance_validation_layers_alt2[] = { "VK_LAYER_GOOGLE_threading", "VK_LAYER_LUNARG_parameter_validation", "VK_LAYER_LUNARG_object_tracker", "VK_LAYER_LUNARG_image", "VK_LAYER_LUNARG_core_validation", "VK_LAYER_LUNARG_swapchain", "VK_LAYER_GOOGLE_unique_objects" }; /* Look for validation layers */ VkBool32 validation_found = 0; if (demo->validate) { err = vkEnumerateInstanceLayerProperties(&instance_layer_count, NULL); assert(!err); instance_validation_layers = (const char**) instance_validation_layers_alt1; if (instance_layer_count > 0) { VkLayerProperties *instance_layers = malloc(sizeof (VkLayerProperties) * instance_layer_count); err = vkEnumerateInstanceLayerProperties(&instance_layer_count, instance_layers); assert(!err); validation_found = demo_check_layers( ARRAY_SIZE(instance_validation_layers_alt1), instance_validation_layers, instance_layer_count, instance_layers); if (validation_found) { demo->enabled_layer_count = ARRAY_SIZE(instance_validation_layers_alt1); demo->enabled_layers[0] = "VK_LAYER_LUNARG_standard_validation"; validation_layer_count = 1; } else { // use alternative set of validation layers instance_validation_layers = (const char**) instance_validation_layers_alt2; demo->enabled_layer_count = ARRAY_SIZE(instance_validation_layers_alt2); validation_found = demo_check_layers( ARRAY_SIZE(instance_validation_layers_alt2), instance_validation_layers, instance_layer_count, instance_layers); validation_layer_count = ARRAY_SIZE(instance_validation_layers_alt2); for (i = 0; i < validation_layer_count; i++) { demo->enabled_layers[i] = instance_validation_layers[i]; } } free(instance_layers); } if (!validation_found) { ERR_EXIT("vkEnumerateInstanceLayerProperties failed to find " "required validation layer.\n\n" "Please look at the Getting Started guide for additional " "information.\n", "vkCreateInstance Failure"); } } /* Look for instance extensions */ required_extensions = glfwGetRequiredInstanceExtensions(&required_extension_count); if (!required_extensions) { ERR_EXIT("glfwGetRequiredInstanceExtensions failed to find the " "platform surface extensions.\n\nDo you have a compatible " "Vulkan installable client driver (ICD) installed?\nPlease " "look at the Getting Started guide for additional " "information.\n", "vkCreateInstance Failure"); } for (i = 0; i < required_extension_count; i++) { demo->extension_names[demo->enabled_extension_count++] = required_extensions[i]; assert(demo->enabled_extension_count < 64); } err = vkEnumerateInstanceExtensionProperties( NULL, &instance_extension_count, NULL); assert(!err); if (instance_extension_count > 0) { VkExtensionProperties *instance_extensions = malloc(sizeof(VkExtensionProperties) * instance_extension_count); err = vkEnumerateInstanceExtensionProperties( NULL, &instance_extension_count, instance_extensions); assert(!err); for (i = 0; i < instance_extension_count; i++) { if (!strcmp(VK_EXT_DEBUG_REPORT_EXTENSION_NAME, instance_extensions[i].extensionName)) { if (demo->validate) { demo->extension_names[demo->enabled_extension_count++] = VK_EXT_DEBUG_REPORT_EXTENSION_NAME; } } assert(demo->enabled_extension_count < 64); } free(instance_extensions); } const VkApplicationInfo app = { .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO, .pNext = NULL, .pApplicationName = APP_SHORT_NAME, .applicationVersion = 0, .pEngineName = APP_SHORT_NAME, .engineVersion = 0, .apiVersion = VK_API_VERSION_1_0, }; VkInstanceCreateInfo inst_info = { .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, .pNext = NULL, .pApplicationInfo = &app, .enabledLayerCount = demo->enabled_layer_count, .ppEnabledLayerNames = (const char *const *)instance_validation_layers, .enabledExtensionCount = demo->enabled_extension_count, .ppEnabledExtensionNames = (const char *const *)demo->extension_names, }; uint32_t gpu_count; err = vkCreateInstance(&inst_info, NULL, &demo->inst); if (err == VK_ERROR_INCOMPATIBLE_DRIVER) { ERR_EXIT("Cannot find a compatible Vulkan installable client driver " "(ICD).\n\nPlease look at the Getting Started guide for " "additional information.\n", "vkCreateInstance Failure"); } else if (err == VK_ERROR_EXTENSION_NOT_PRESENT) { ERR_EXIT("Cannot find a specified extension library" ".\nMake sure your layers path is set appropriately\n", "vkCreateInstance Failure"); } else if (err) { ERR_EXIT("vkCreateInstance failed.\n\nDo you have a compatible Vulkan " "installable client driver (ICD) installed?\nPlease look at " "the Getting Started guide for additional information.\n", "vkCreateInstance Failure"); } gladLoadVulkanUserPtr(NULL, glad_vulkan_callback, demo->inst); /* Make initial call to query gpu_count, then second call for gpu info*/ err = vkEnumeratePhysicalDevices(demo->inst, &gpu_count, NULL); assert(!err && gpu_count > 0); if (gpu_count > 0) { VkPhysicalDevice *physical_devices = malloc(sizeof(VkPhysicalDevice) * gpu_count); err = vkEnumeratePhysicalDevices(demo->inst, &gpu_count, physical_devices); assert(!err); /* For tri demo we just grab the first physical device */ demo->gpu = physical_devices[0]; free(physical_devices); } else { ERR_EXIT("vkEnumeratePhysicalDevices reported zero accessible devices." "\n\nDo you have a compatible Vulkan installable client" " driver (ICD) installed?\nPlease look at the Getting Started" " guide for additional information.\n", "vkEnumeratePhysicalDevices Failure"); } gladLoadVulkanUserPtr(demo->gpu, glad_vulkan_callback, demo->inst); /* Look for device extensions */ uint32_t device_extension_count = 0; VkBool32 swapchainExtFound = 0; demo->enabled_extension_count = 0; err = vkEnumerateDeviceExtensionProperties(demo->gpu, NULL, &device_extension_count, NULL); assert(!err); if (device_extension_count > 0) { VkExtensionProperties *device_extensions = malloc(sizeof(VkExtensionProperties) * device_extension_count); err = vkEnumerateDeviceExtensionProperties( demo->gpu, NULL, &device_extension_count, device_extensions); assert(!err); for (i = 0; i < device_extension_count; i++) { if (!strcmp(VK_KHR_SWAPCHAIN_EXTENSION_NAME, device_extensions[i].extensionName)) { swapchainExtFound = 1; demo->extension_names[demo->enabled_extension_count++] = VK_KHR_SWAPCHAIN_EXTENSION_NAME; } assert(demo->enabled_extension_count < 64); } free(device_extensions); } if (!swapchainExtFound) { ERR_EXIT("vkEnumerateDeviceExtensionProperties failed to find " "the " VK_KHR_SWAPCHAIN_EXTENSION_NAME " extension.\n\nDo you have a compatible " "Vulkan installable client driver (ICD) installed?\nPlease " "look at the Getting Started guide for additional " "information.\n", "vkCreateInstance Failure"); } if (demo->validate) { VkDebugReportCallbackCreateInfoEXT dbgCreateInfo; dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT; dbgCreateInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT; dbgCreateInfo.pfnCallback = demo->use_break ? BreakCallback : dbgFunc; dbgCreateInfo.pUserData = demo; dbgCreateInfo.pNext = NULL; err = vkCreateDebugReportCallbackEXT(demo->inst, &dbgCreateInfo, NULL, &demo->msg_callback); switch (err) { case VK_SUCCESS: break; case VK_ERROR_OUT_OF_HOST_MEMORY: ERR_EXIT("CreateDebugReportCallback: out of host memory\n", "CreateDebugReportCallback Failure"); break; default: ERR_EXIT("CreateDebugReportCallback: unknown failure\n", "CreateDebugReportCallback Failure"); break; } } vkGetPhysicalDeviceProperties(demo->gpu, &demo->gpu_props); // Query with NULL data to get count vkGetPhysicalDeviceQueueFamilyProperties(demo->gpu, &demo->queue_count, NULL); demo->queue_props = (VkQueueFamilyProperties *)malloc( demo->queue_count * sizeof(VkQueueFamilyProperties)); vkGetPhysicalDeviceQueueFamilyProperties(demo->gpu, &demo->queue_count, demo->queue_props); assert(demo->queue_count >= 1); vkGetPhysicalDeviceFeatures(demo->gpu, &demo->gpu_features); // Graphics queue and MemMgr queue can be separate. // TODO: Add support for separate queues, including synchronization, // and appropriate tracking for QueueSubmit } static void demo_init_device(struct demo *demo) { VkResult U_ASSERT_ONLY err; float queue_priorities[1] = {0.0}; const VkDeviceQueueCreateInfo queue = { .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, .pNext = NULL, .queueFamilyIndex = demo->graphics_queue_node_index, .queueCount = 1, .pQueuePriorities = queue_priorities}; VkPhysicalDeviceFeatures features; memset(&features, 0, sizeof(features)); if (demo->gpu_features.shaderClipDistance) { features.shaderClipDistance = VK_TRUE; } VkDeviceCreateInfo device = { .sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, .pNext = NULL, .queueCreateInfoCount = 1, .pQueueCreateInfos = &queue, .enabledLayerCount = 0, .ppEnabledLayerNames = NULL, .enabledExtensionCount = demo->enabled_extension_count, .ppEnabledExtensionNames = (const char *const *)demo->extension_names, .pEnabledFeatures = &features, }; err = vkCreateDevice(demo->gpu, &device, NULL, &demo->device); assert(!err); } static void demo_init_vk_swapchain(struct demo *demo) { VkResult U_ASSERT_ONLY err; uint32_t i; // Create a WSI surface for the window: glfwCreateWindowSurface(demo->inst, demo->window, NULL, &demo->surface); // Iterate over each queue to learn whether it supports presenting: VkBool32 *supportsPresent = (VkBool32 *)malloc(demo->queue_count * sizeof(VkBool32)); for (i = 0; i < demo->queue_count; i++) { vkGetPhysicalDeviceSurfaceSupportKHR(demo->gpu, i, demo->surface, &supportsPresent[i]); } // Search for a graphics and a present queue in the array of queue // families, try to find one that supports both uint32_t graphicsQueueNodeIndex = UINT32_MAX; uint32_t presentQueueNodeIndex = UINT32_MAX; for (i = 0; i < demo->queue_count; i++) { if ((demo->queue_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) != 0) { if (graphicsQueueNodeIndex == UINT32_MAX) { graphicsQueueNodeIndex = i; } if (supportsPresent[i] == VK_TRUE) { graphicsQueueNodeIndex = i; presentQueueNodeIndex = i; break; } } } if (presentQueueNodeIndex == UINT32_MAX) { // If didn't find a queue that supports both graphics and present, then // find a separate present queue. for (i = 0; i < demo->queue_count; ++i) { if (supportsPresent[i] == VK_TRUE) { presentQueueNodeIndex = i; break; } } } free(supportsPresent); // Generate error if could not find both a graphics and a present queue if (graphicsQueueNodeIndex == UINT32_MAX || presentQueueNodeIndex == UINT32_MAX) { ERR_EXIT("Could not find a graphics and a present queue\n", "Swapchain Initialization Failure"); } // TODO: Add support for separate queues, including presentation, // synchronization, and appropriate tracking for QueueSubmit. // NOTE: While it is possible for an application to use a separate graphics // and a present queues, this demo program assumes it is only using // one: if (graphicsQueueNodeIndex != presentQueueNodeIndex) { ERR_EXIT("Could not find a common graphics and a present queue\n", "Swapchain Initialization Failure"); } demo->graphics_queue_node_index = graphicsQueueNodeIndex; demo_init_device(demo); vkGetDeviceQueue(demo->device, demo->graphics_queue_node_index, 0, &demo->queue); // Get the list of VkFormat's that are supported: uint32_t formatCount; err = vkGetPhysicalDeviceSurfaceFormatsKHR(demo->gpu, demo->surface, &formatCount, NULL); assert(!err); VkSurfaceFormatKHR *surfFormats = (VkSurfaceFormatKHR *)malloc(formatCount * sizeof(VkSurfaceFormatKHR)); err = vkGetPhysicalDeviceSurfaceFormatsKHR(demo->gpu, demo->surface, &formatCount, surfFormats); assert(!err); // If the format list includes just one entry of VK_FORMAT_UNDEFINED, // the surface has no preferred format. Otherwise, at least one // supported format will be returned. if (formatCount == 1 && surfFormats[0].format == VK_FORMAT_UNDEFINED) { demo->format = VK_FORMAT_B8G8R8A8_UNORM; } else { assert(formatCount >= 1); demo->format = surfFormats[0].format; } demo->color_space = surfFormats[0].colorSpace; demo->curFrame = 0; // Get Memory information and properties vkGetPhysicalDeviceMemoryProperties(demo->gpu, &demo->memory_properties); } static void demo_init_connection(struct demo *demo) { glfwSetErrorCallback(demo_error_callback); if (!glfwInit()) { printf("Cannot initialize GLFW.\nExiting ...\n"); fflush(stdout); exit(1); } if (!glfwVulkanSupported()) { printf("GLFW failed to find the Vulkan loader.\nExiting ...\n"); fflush(stdout); exit(1); } gladLoadVulkanUserPtr(NULL, glad_vulkan_callback, NULL); } static void demo_init(struct demo *demo, const int argc, const char *argv[]) { int i; memset(demo, 0, sizeof(*demo)); demo->frameCount = INT32_MAX; for (i = 1; i < argc; i++) { if (strcmp(argv[i], "--use_staging") == 0) { demo->use_staging_buffer = true; continue; } if (strcmp(argv[i], "--break") == 0) { demo->use_break = true; continue; } if (strcmp(argv[i], "--validate") == 0) { demo->validate = true; continue; } if (strcmp(argv[i], "--c") == 0 && demo->frameCount == INT32_MAX && i < argc - 1 && sscanf(argv[i + 1], "%d", &demo->frameCount) == 1 && demo->frameCount >= 0) { i++; continue; } fprintf(stderr, "Usage:\n %s [--use_staging] [--validate] [--break] " "[--c ]\n", APP_SHORT_NAME); fflush(stderr); exit(1); } demo_init_connection(demo); demo_init_vk(demo); demo->width = 300; demo->height = 300; demo->depthStencil = 1.0; demo->depthIncrement = -0.01f; } static void demo_cleanup(struct demo *demo) { uint32_t i; for (i = 0; i < demo->swapchainImageCount; i++) { vkDestroyFramebuffer(demo->device, demo->framebuffers[i], NULL); } free(demo->framebuffers); vkDestroyDescriptorPool(demo->device, demo->desc_pool, NULL); if (demo->setup_cmd) { vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->setup_cmd); demo->setup_cmd = VK_NULL_HANDLE; } vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->draw_cmd); vkDestroyCommandPool(demo->device, demo->cmd_pool, NULL); vkDestroyPipeline(demo->device, demo->pipeline, NULL); vkDestroyRenderPass(demo->device, demo->render_pass, NULL); vkDestroyPipelineLayout(demo->device, demo->pipeline_layout, NULL); vkDestroyDescriptorSetLayout(demo->device, demo->desc_layout, NULL); vkDestroyBuffer(demo->device, demo->vertices.buf, NULL); vkFreeMemory(demo->device, demo->vertices.mem, NULL); for (i = 0; i < DEMO_TEXTURE_COUNT; i++) { vkDestroyImageView(demo->device, demo->textures[i].view, NULL); vkDestroyImage(demo->device, demo->textures[i].image, NULL); vkFreeMemory(demo->device, demo->textures[i].mem, NULL); vkDestroySampler(demo->device, demo->textures[i].sampler, NULL); } for (i = 0; i < demo->swapchainImageCount; i++) { vkDestroyImageView(demo->device, demo->buffers[i].view, NULL); } vkDestroyImageView(demo->device, demo->depth.view, NULL); vkDestroyImage(demo->device, demo->depth.image, NULL); vkFreeMemory(demo->device, demo->depth.mem, NULL); vkDestroySwapchainKHR(demo->device, demo->swapchain, NULL); free(demo->buffers); vkDestroyDevice(demo->device, NULL); if (demo->validate) { vkDestroyDebugReportCallbackEXT(demo->inst, demo->msg_callback, NULL); } vkDestroySurfaceKHR(demo->inst, demo->surface, NULL); vkDestroyInstance(demo->inst, NULL); free(demo->queue_props); glfwDestroyWindow(demo->window); glfwTerminate(); } static void demo_resize(struct demo *demo) { uint32_t i; // In order to properly resize the window, we must re-create the swapchain // AND redo the command buffers, etc. // // First, perform part of the demo_cleanup() function: for (i = 0; i < demo->swapchainImageCount; i++) { vkDestroyFramebuffer(demo->device, demo->framebuffers[i], NULL); } free(demo->framebuffers); vkDestroyDescriptorPool(demo->device, demo->desc_pool, NULL); if (demo->setup_cmd) { vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->setup_cmd); } vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->draw_cmd); vkDestroyCommandPool(demo->device, demo->cmd_pool, NULL); vkDestroyPipeline(demo->device, demo->pipeline, NULL); vkDestroyRenderPass(demo->device, demo->render_pass, NULL); vkDestroyPipelineLayout(demo->device, demo->pipeline_layout, NULL); vkDestroyDescriptorSetLayout(demo->device, demo->desc_layout, NULL); vkDestroyBuffer(demo->device, demo->vertices.buf, NULL); vkFreeMemory(demo->device, demo->vertices.mem, NULL); for (i = 0; i < DEMO_TEXTURE_COUNT; i++) { vkDestroyImageView(demo->device, demo->textures[i].view, NULL); vkDestroyImage(demo->device, demo->textures[i].image, NULL); vkFreeMemory(demo->device, demo->textures[i].mem, NULL); vkDestroySampler(demo->device, demo->textures[i].sampler, NULL); } for (i = 0; i < demo->swapchainImageCount; i++) { vkDestroyImageView(demo->device, demo->buffers[i].view, NULL); } vkDestroyImageView(demo->device, demo->depth.view, NULL); vkDestroyImage(demo->device, demo->depth.image, NULL); vkFreeMemory(demo->device, demo->depth.mem, NULL); free(demo->buffers); // Second, re-perform the demo_prepare() function, which will re-create the // swapchain: demo_prepare(demo); } int main(const int argc, const char *argv[]) { struct demo demo; demo_init(&demo, argc, argv); demo_create_window(&demo); demo_init_vk_swapchain(&demo); demo_prepare(&demo); demo_run(&demo); demo_cleanup(&demo); return validation_error; }