Function TestPool_SameSize

src/Tests.cpp:5153–5384

}

static void TestPool_SameSize()
{
    const VkDeviceSize BUF_SIZE = 1024 * 1024;
    const size_t BUF_COUNT = 100;
    VkResult res;

    RandomNumberGenerator rand{123};

    VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
    bufferInfo.size = BUF_SIZE;
    bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;

    uint32_t memoryTypeBits = UINT32_MAX;
    {
        VkBuffer dummyBuffer;
        res = vkCreateBuffer(g_hDevice, &bufferInfo, g_Allocs, &dummyBuffer);
        TEST(res == VK_SUCCESS);

        VkMemoryRequirements memReq;
        vkGetBufferMemoryRequirements(g_hDevice, dummyBuffer, &memReq);
        memoryTypeBits = memReq.memoryTypeBits;

        vkDestroyBuffer(g_hDevice, dummyBuffer, g_Allocs);
    }

    VmaAllocationCreateInfo poolAllocInfo = {};
    poolAllocInfo.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
    uint32_t memTypeIndex;
    res = vmaFindMemoryTypeIndex(
        g_hAllocator,
        memoryTypeBits,
        &poolAllocInfo,
        &memTypeIndex);

    VmaPoolCreateInfo poolCreateInfo = {};
    poolCreateInfo.memoryTypeIndex = memTypeIndex;
    poolCreateInfo.blockSize = BUF_SIZE * BUF_COUNT / 4;
    poolCreateInfo.minBlockCount = 1;
    poolCreateInfo.maxBlockCount = 4;

    VmaPool pool;
    res = vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool);
    TEST(res == VK_SUCCESS);

    // Test pool name
    {
        static const char* const POOL_NAME = "Pool name";
        vmaSetPoolName(g_hAllocator, pool, POOL_NAME);

        const char* fetchedPoolName = nullptr;
        vmaGetPoolName(g_hAllocator, pool, &fetchedPoolName);
        TEST(strcmp(fetchedPoolName, POOL_NAME) == 0);

        // Generate JSON dump. There was a bug with this...
        char* json = nullptr;
        vmaBuildStatsString(g_hAllocator, &json, VK_TRUE);
        vmaFreeStatsString(g_hAllocator, json);