Function Defragment

src/Tests.cpp:1626–1677

}

static void Defragment(VmaDefragmentationInfo& defragmentationInfo,
    VmaDefragmentationStats* defragmentationStats = nullptr)
{
    VmaDefragmentationContext defragCtx = nullptr;
    VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragmentationInfo, &defragCtx);
    TEST(res == VK_SUCCESS);

    VmaDefragmentationPassMoveInfo pass = {};
    while ((res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_INCOMPLETE)
    {
        wprintf(L"  Pass: moveCount=%u\n", pass.moveCount);

        BeginSingleTimeCommands();
        ProcessDefragmentationPass(pass);
        EndSingleTimeCommands();

        // Destroy old buffers/images and replace them with new handles.
        for(size_t i = 0; i < pass.moveCount; ++i)
        {
            VmaAllocation const alloc = pass.pMoves[i].srcAllocation;
            VmaAllocationInfo vmaAllocInfo;
            vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo);
            AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData;
            if(pass.pMoves[i].operation != VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE)
            {
                TEST(allocInfo != nullptr && allocInfo->m_DefragmentationMovable);
                if (allocInfo->m_Buffer)
                {
                    TEST(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage);
                    vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs);
                    allocInfo->m_Buffer = allocInfo->m_NewBuffer;
                    allocInfo->m_NewBuffer = VK_NULL_HANDLE;
                }
                else if (allocInfo->m_Image)
                {
                    TEST(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer);
                    vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs);
                    allocInfo->m_Image = allocInfo->m_NewImage;
                    allocInfo->m_NewImage = VK_NULL_HANDLE;
                }
                else
                    assert(0);
            }
        }
        if ((res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_SUCCESS)
            break;
        TEST(res == VK_INCOMPLETE);
    }
    TEST(res == VK_SUCCESS);

    vmaEndDefragmentation(g_hAllocator, defragCtx, defragmentationStats);
}

static void ValidateAllocationsData(const AllocInfo* allocs, size_t allocCount)
{