Method setupSwapchain

examples/vulkan/Vulkan.cpp:734–852

Query surface formats and set up swapchain

    // Query surface formats and set up swapchain
    void setupSwapchain()
    {
        // Select a surface format that supports RGBA color format
        std::uint32_t objectCount = 0;

        std::vector<VkSurfaceFormatKHR> surfaceFormats;

        if (vkGetPhysicalDeviceSurfaceFormatsKHR(gpu, surface, &objectCount, nullptr) != VK_SUCCESS)
        {
            vulkanAvailable = false;
            return;
        }

        surfaceFormats.resize(objectCount);

        if (vkGetPhysicalDeviceSurfaceFormatsKHR(gpu, surface, &objectCount, surfaceFormats.data()) != VK_SUCCESS)
        {
            vulkanAvailable = false;
            return;
        }

        if ((surfaceFormats.size() == 1) && (surfaceFormats[0].format == VK_FORMAT_UNDEFINED))
        {
            swapchainFormat.format     = VK_FORMAT_B8G8R8A8_UNORM;
            swapchainFormat.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
        }
        else if (!surfaceFormats.empty())
        {
            for (const VkSurfaceFormatKHR& surfaceFormat : surfaceFormats)
            {
                if ((surfaceFormat.format == VK_FORMAT_B8G8R8A8_UNORM) &&
                    (surfaceFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR))
                {
                    swapchainFormat.format     = VK_FORMAT_B8G8R8A8_UNORM;
                    swapchainFormat.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;

                    break;
                }
            }

            if (swapchainFormat.format == VK_FORMAT_UNDEFINED)
                swapchainFormat = surfaceFormats[0];
        }
        else
        {
            vulkanAvailable = false;
            return;
        }

        // Select a swapchain present mode
        std::vector<VkPresentModeKHR> presentModes;

        if (vkGetPhysicalDeviceSurfacePresentModesKHR(gpu, surface, &objectCount, nullptr) != VK_SUCCESS)
        {
            vulkanAvailable = false;
            return;
        }