QuerySwapChainSupport()

SwapChainSupportDetails Spices::VulkanDevice::QuerySwapChainSupport ( const VkPhysicalDevice & device, const VkSurfaceKHR & surface, GLFWwindow * window )

staticprivate

Query physical device's SwapChainSupport.

Parameters

[in]	device	VkPhysicalDevice.
[in]	surface	VkSurfaceKHR.
[in]	window	The row pointer of GLFW window.

Returns

Returns SwapChainSupportDetails.

Get VkSurfaceCapabilitiesKHR.

Get VkExtent2D From VkSurfaceCapabilitiesKHR or glfwWindow.

clamp to VkSurfaceCapabilitiesKHR's limit.

Get physicaldevice surfaceformat nums;

Get physicaldevice surfaceformat;

Get suitable surfaceformat.

Note

Remember this format is linear.

Get physicaldevice persentmode nums;

Get physicaldevice persentmode;

Get suitable persentmode.

Get VkSurfaceCapabilitiesKHR.

Get VkExtent2D From VkSurfaceCapabilitiesKHR or glfwWindow.

clamp to VkSurfaceCapabilitiesKHR's limit.

Get physicaldevice surfaceformat nums;

Get physicaldevice surfaceformat;

Get suitable surfaceformat.

Note

Remember this format is linear.

Get physicaldevice persentmode nums;

Get physicaldevice persentmode;

Get suitable persentmode.

Definition at line 718 of file VulkanDevice.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        SwapChainSupportDetails swapChainSupportDetails = SwapChainSupportDetails{};
        vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &swapChainSupportDetails.capabilities);
 
        if (swapChainSupportDetails.capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max()) 
        {
            swapChainSupportDetails.surfaceSize = swapChainSupportDetails.capabilities.currentExtent;
        }
        else
        {
            int width, height;
            glfwGetFramebufferSize(window, &width, &height);
 
            VkExtent2D actualExtent = 
            {
                static_cast<uint32_t>(width),
                static_cast<uint32_t>(height)
            };
 
            actualExtent.width = std::clamp(actualExtent.width, 
                swapChainSupportDetails.capabilities.minImageExtent.width,
                swapChainSupportDetails.capabilities.maxImageExtent.width);
 
            actualExtent.height = std::clamp(actualExtent.height, 
                swapChainSupportDetails.capabilities.minImageExtent.height,
                swapChainSupportDetails.capabilities.maxImageExtent.height);
 
            swapChainSupportDetails.surfaceSize = actualExtent;
        }
 
        uint32_t formatCount;
        vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
 
        if (formatCount != 0) 
        {
            swapChainSupportDetails.formats.resize(formatCount);
            vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, swapChainSupportDetails.formats.data());
 
            swapChainSupportDetails.format = swapChainSupportDetails.formats[0];
 
            for (const auto& availableFormat : swapChainSupportDetails.formats) 
            {
                if (availableFormat.format == VK_FORMAT_A2B10G10R10_UNORM_PACK32 &&
                    availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) 
                {
                    swapChainSupportDetails.format = availableFormat;
                    break;
                }
            }
        }
 
        uint32_t presentModeCount;
        vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
 
        if (presentModeCount != 0)
        {
            swapChainSupportDetails.presentModes.resize(presentModeCount);
            vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, swapChainSupportDetails.presentModes.data());
 
            swapChainSupportDetails.presentMode = swapChainSupportDetails.presentModes[0];
 
            for (const auto& availablePresentMode : swapChainSupportDetails.presentModes) 
            {
                if (availablePresentMode == VK_PRESENT_MODE_MAILBOX_KHR) 
                {
                    swapChainSupportDetails.presentMode = availablePresentMode;
                    break;
                }
            }
        }
 
        return swapChainSupportDetails;
    }