private static SwapChainSupportDetails QuerySwapChainSupport(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
return(new SwapChainSupportDetails
{
Capabilities = physicalDevice.GetSurfaceCapabilitiesKHR(surface).Object,
Formats = physicalDevice.GetSurfaceFormatsKHR(surface).Object,
PresentModes = physicalDevice.GetSurfacePresentModesKHR(surface).Object
});
}
public VkDisplayPropertiesKHR(Raw *raw, IVkPhysicalDevice physicalDevice)
{
Display = physicalDevice.GetDisplay(raw->display);
DisplayName = VkHelpers.ToString(raw->displayName);
PhysicalDimensions = raw->physicalDimensions;
PhysicalResolution = raw->physicalResolution;
SupportedTransforms = raw->supportedTransforms;
PlaneReorderPossible = (bool)raw->planeReorderPossible;
PersistentContent = (bool)raw->persistentContent;
}
private void PickPhysicalDevice()
{
var devices = instance.PhysicalDevices;
if (devices.Count == 0)
{
throw new Exception("Failed to find GPUs with Vulkan support.");
}
physicalDevice = devices.FirstOrDefault(x => IsDeviceSuitable(x, surface));
if (physicalDevice == null)
{
throw new Exception("Failed to find a suitable GPU.");
}
}
private static bool IsDeviceSuitable(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
var extensionProps = physicalDevice.EnumerateDeviceExtensionProperties(null).Object;
if (!DeviceExtensions.All(e => extensionProps.Any(p => p.ExtensionName == e)))
{
return(false);
}
var swapChainSupportDetails = QuerySwapChainSupport(physicalDevice, surface);
return
(swapChainSupportDetails.Formats.Any() &&
swapChainSupportDetails.PresentModes.Any() &&
FindQueueFamilies(physicalDevice, surface).HasValue);
}
private static QueueFamilyIndices?FindQueueFamilies(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
var graphicsFamily = physicalDevice.QueueFamilyProperties
.Select((p, i) => new { p, i })
.FirstOrDefault(x => x.p.QueueCount > 0 && (x.p.QueueFlags & VkQueueFlags.Graphics) != 0)
?.i;
var presentFamily = physicalDevice.QueueFamilyProperties
.Select((p, i) => new { p, i })
.FirstOrDefault(x => x.p.QueueCount > 0 && physicalDevice.GetSurfaceSupportKHR(x.i, surface).Object)
?.i;
return(graphicsFamily.HasValue && presentFamily.HasValue ? new QueueFamilyIndices
{
GraphicsFamily = graphicsFamily.Value,
PresentFamily = presentFamily.Value
} : (QueueFamilyIndices?)null);
}
public VkDisplayPlanePropertiesKHR(Raw *raw, IVkPhysicalDevice physicalDevice)
{
CurrentDisplay = physicalDevice.GetDisplay(raw->currentDisplay);
CurrentStackIndex = raw->currentStackIndex;
}
