Function TestHeapSizeLimit

src/Tests.cpp:3859–3969

}

void TestHeapSizeLimit()
{
    wprintf(L"Test heap size limit\n");

    const VkDeviceSize HEAP_SIZE_LIMIT = 100ull * 1024 * 1024; // 100 MB
    const VkDeviceSize BLOCK_SIZE      =  10ull * 1024 * 1024; // 10 MB

    VkDeviceSize heapSizeLimit[VK_MAX_MEMORY_HEAPS];
    for(uint32_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
    {
        heapSizeLimit[i] = HEAP_SIZE_LIMIT;
    }

    VmaAllocatorCreateInfo allocatorCreateInfo = {};
    allocatorCreateInfo.physicalDevice = g_hPhysicalDevice;
    allocatorCreateInfo.device = g_hDevice;
    allocatorCreateInfo.instance = g_hVulkanInstance;
    allocatorCreateInfo.pHeapSizeLimit = heapSizeLimit;
#ifdef VOLK_HEADER_VERSION
    VmaVulkanFunctions vulkanFunctions = {};
    vmaImportVulkanFunctionsFromVolk(&allocatorCreateInfo, &vulkanFunctions);
    allocatorCreateInfo.pVulkanFunctions = &vulkanFunctions;
#endif
#if VMA_DYNAMIC_VULKAN_FUNCTIONS
    VmaVulkanFunctions vulkanFunctions = {};
    vulkanFunctions.vkGetInstanceProcAddr = vkGetInstanceProcAddr;
    vulkanFunctions.vkGetDeviceProcAddr = vkGetDeviceProcAddr;
    allocatorCreateInfo.pVulkanFunctions = &vulkanFunctions;
#endif

    VmaAllocator hAllocator;
    VkResult res = vmaCreateAllocator(&allocatorCreateInfo, &hAllocator);
    TEST(res == VK_SUCCESS);

    struct Item
    {
        VkBuffer hBuf;
        VmaAllocation hAlloc;
    };
    std::vector<Item> items;

    VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
    bufCreateInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;

    // 1. Allocate two blocks of dedicated memory, half the size of BLOCK_SIZE.
    VmaAllocationInfo dedicatedAllocInfo;
    {
        VmaAllocationCreateInfo allocCreateInfo = {};
        allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE;
        allocCreateInfo.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;

        bufCreateInfo.size = BLOCK_SIZE / 2;

        for(size_t i = 0; i < 2; ++i)
        {
            Item item;
            res = vmaCreateBuffer(hAllocator, &bufCreateInfo, &allocCreateInfo, &item.hBuf, &item.hAlloc, &dedicatedAllocInfo);
            TEST(res == VK_SUCCESS);