Method Init

src/VulkanSample.cpp:420–528

}

void VulkanUsage::Init()
{
    g_hAppInstance = (HINSTANCE)GetModuleHandle(NULL);

    if(USE_CUSTOM_CPU_ALLOCATION_CALLBACKS)
    {
        g_Allocs = &g_CpuAllocationCallbacks;
    }

#ifdef VOLK_HEADER_VERSION
    ERR_GUARD_VULKAN(volkInitialize());
#endif

    uint32_t instanceLayerPropCount = 0;
    ERR_GUARD_VULKAN( vkEnumerateInstanceLayerProperties(&instanceLayerPropCount, nullptr) );
    std::vector<VkLayerProperties> instanceLayerProps(instanceLayerPropCount);
    if(instanceLayerPropCount > 0)
    {
        ERR_GUARD_VULKAN( vkEnumerateInstanceLayerProperties(&instanceLayerPropCount, instanceLayerProps.data()) );
    }

    if(g_EnableValidationLayer)
    {
        if(IsLayerSupported(instanceLayerProps.data(), instanceLayerProps.size(), VALIDATION_LAYER_NAME) == false)
        {
            wprintf(L"Layer \"%hs\" not supported.", VALIDATION_LAYER_NAME);
            g_EnableValidationLayer = false;
        }
    }

    uint32_t availableInstanceExtensionCount = 0;
    ERR_GUARD_VULKAN( vkEnumerateInstanceExtensionProperties(nullptr, &availableInstanceExtensionCount, nullptr) );
    std::vector<VkExtensionProperties> availableInstanceExtensions(availableInstanceExtensionCount);
    if(availableInstanceExtensionCount > 0)
    {
        ERR_GUARD_VULKAN( vkEnumerateInstanceExtensionProperties(nullptr, &availableInstanceExtensionCount, availableInstanceExtensions.data()) );
    }

    std::vector<const char*> enabledInstanceExtensions;
    enabledInstanceExtensions.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
    enabledInstanceExtensions.push_back(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);

    std::vector<const char*> instanceLayers;
    if(g_EnableValidationLayer)
    {
        instanceLayers.push_back(VALIDATION_LAYER_NAME);
    }

    for(const auto& extensionProperties : availableInstanceExtensions)
    {
        if(strcmp(extensionProperties.extensionName, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME) == 0)
        {
            if(GetVulkanApiVersion() == VK_API_VERSION_1_0)
            {
                enabledInstanceExtensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
                VK_KHR_get_physical_device_properties2_enabled = true;
            }
        }