internal static VulkanDisplay CreateDisplay(VulkanInstance instance, VulkanDevice device,
VulkanPhysicalDevice physicalDevice, VulkanSurface surface)
{
var swapchain = CreateSwapchain(instance, device, physicalDevice, surface, out var extent, null, true);
return(new VulkanDisplay(instance, device, physicalDevice, surface, swapchain, extent));
}
private static unsafe PresentModeKHR GetSuitablePresentMode(VulkanPhysicalDevice physicalDevice, VulkanSurface surface, bool vsyncEnabled)
{
uint presentModesCount;
VulkanSurface.SurfaceExtension.GetPhysicalDeviceSurfacePresentModes(physicalDevice.InternalHandle,
surface.ApiHandle,
&presentModesCount, null);
var presentModes = new PresentModeKHR[presentModesCount];
fixed(PresentModeKHR *pPresentModes = presentModes)
{
VulkanSurface.SurfaceExtension.GetPhysicalDeviceSurfacePresentModes(physicalDevice.InternalHandle,
surface.ApiHandle, &presentModesCount, pPresentModes);
}
var modes = presentModes.ToList();
if (!vsyncEnabled && modes.Contains(PresentModeKHR.PresentModeImmediateKhr))
{
return(PresentModeKHR.PresentModeImmediateKhr);
}
else if (modes.Contains(PresentModeKHR.PresentModeMailboxKhr))
{
return(PresentModeKHR.PresentModeMailboxKhr);
}
else if (modes.Contains(PresentModeKHR.PresentModeFifoKhr))
{
return(PresentModeKHR.PresentModeFifoKhr);
}
else
{
return(PresentModeKHR.PresentModeImmediateKhr);
}
}
public VulkanDevice(Device apiHandle, VulkanPhysicalDevice physicalDevice, Vk api)
{
InternalHandle = apiHandle;
Api = api;
api.GetDeviceQueue(apiHandle, physicalDevice.QueueFamilyIndex, 0, out var queue);
Queue = new VulkanQueue(this, queue);
PresentQueue = Queue;
}
internal static int FindSuitableMemoryTypeIndex(VulkanPhysicalDevice physicalDevice, uint memoryTypeBits,
MemoryPropertyFlags flags)
{
physicalDevice.Api.GetPhysicalDeviceMemoryProperties(physicalDevice.InternalHandle, out var properties);
for (var i = 0; i < properties.MemoryTypeCount; i++)
{
var type = properties.MemoryTypes[i];
if ((memoryTypeBits & (1 << i)) != 0 && type.PropertyFlags.HasFlag(flags))
{
return(i);
}
}
return(-1);
}
private VulkanDisplay(VulkanInstance instance, VulkanDevice device,
VulkanPhysicalDevice physicalDevice, VulkanSurface surface, SwapchainKHR swapchain,
Extent2D swapchainExtent)
{
_instance = instance;
_device = device;
_physicalDevice = physicalDevice;
_swapchain = swapchain;
_swapchainExtent = swapchainExtent;
_surface = surface;
CreateSwapchainImages();
_semaphorePair = new VulkanSemaphorePair(_device);
CommandBufferPool = new VulkanCommandBufferPool(device, physicalDevice);
}
public VulkanSurfaceRenderTarget CreateRenderTarget(IVulkanPlatformSurface platformSurface)
{
var surface = VulkanSurface.CreateSurface(Instance, platformSurface);
if (PhysicalDevice == null)
{
PhysicalDevice = VulkanPhysicalDevice.FindSuitablePhysicalDevice(Instance, surface, _options.PreferDiscreteGpu, _options.PreferredDevice);
}
var renderTarget = new VulkanSurfaceRenderTarget(this, surface);
if (MainSurface == null && surface != null)
{
MainSurface = renderTarget;
}
return(renderTarget);
}
public VulkanImage(
VulkanDevice device,
VulkanPhysicalDevice physicalDevice,
VulkanCommandBufferPool commandBufferPool,
uint format,
PixelSize size,
uint mipLevels = 0)
{
_device = device;
_physicalDevice = physicalDevice;
_commandBufferPool = commandBufferPool;
Format = (Format)format;
Size = size;
MipLevels = mipLevels;
_imageUsageFlags =
ImageUsageFlags.ImageUsageColorAttachmentBit | ImageUsageFlags.ImageUsageTransferDstBit |
ImageUsageFlags.ImageUsageTransferSrcBit | ImageUsageFlags.ImageUsageSampledBit;
Initialize();
}
internal SurfaceFormatKHR GetSurfaceFormat(VulkanPhysicalDevice physicalDevice)
{
Span <uint> surfaceFormatsCount = stackalloc uint[1];
SurfaceExtension.GetPhysicalDeviceSurfaceFormats(physicalDevice.InternalHandle, ApiHandle, surfaceFormatsCount, Span <SurfaceFormatKHR> .Empty);
Span <SurfaceFormatKHR> surfaceFormats = stackalloc SurfaceFormatKHR[(int)surfaceFormatsCount[0]];
SurfaceExtension.GetPhysicalDeviceSurfaceFormats(physicalDevice.InternalHandle, ApiHandle, surfaceFormatsCount, surfaceFormats);
if (surfaceFormats.Length == 1 && surfaceFormats[0].Format == Format.Undefined)
{
return(new SurfaceFormatKHR(Format.B8G8R8A8Unorm, ColorSpaceKHR.ColorspaceSrgbNonlinearKhr));
}
foreach (var format in surfaceFormats)
{
if (format.Format == Format.B8G8R8A8Unorm && format.ColorSpace == ColorSpaceKHR.ColorspaceSrgbNonlinearKhr)
{
return(format);
}
}
return(surfaceFormats[0]);
}
private static unsafe SwapchainKHR CreateSwapchain(VulkanInstance instance, VulkanDevice device,
VulkanPhysicalDevice physicalDevice, VulkanSurface surface, out Extent2D swapchainExtent,
SwapchainKHR?oldswapchain = null, bool vsyncEnabled = true)
{
if (_swapchainExtension == null)
{
instance.Api.TryGetDeviceExtension(instance.InternalHandle, device.InternalHandle, out _swapchainExtension);
}
while (!surface.CanSurfacePresent(physicalDevice))
{
Thread.Sleep(16);
}
VulkanSurface.SurfaceExtension.GetPhysicalDeviceSurfaceCapabilities(physicalDevice.InternalHandle,
surface.ApiHandle, out var capabilities);
var imageCount = capabilities.MinImageCount + 1;
if (capabilities.MaxImageCount > 0 && imageCount > capabilities.MaxImageCount)
{
imageCount = capabilities.MaxImageCount;
}
var surfaceFormat = surface.GetSurfaceFormat(physicalDevice);
bool supportsIdentityTransform = capabilities.SupportedTransforms.HasFlag(SurfaceTransformFlagsKHR.SurfaceTransformIdentityBitKhr);
bool isRotated = capabilities.CurrentTransform.HasFlag(SurfaceTransformFlagsKHR.SurfaceTransformRotate90BitKhr) ||
capabilities.CurrentTransform.HasFlag(SurfaceTransformFlagsKHR.SurfaceTransformRotate270BitKhr);
swapchainExtent = GetSwapchainExtent(surface, capabilities);
CompositeAlphaFlagsKHR compositeAlphaFlags = GetSuitableCompositeAlphaFlags(capabilities);
PresentModeKHR presentMode = GetSuitablePresentMode(physicalDevice, surface, vsyncEnabled);
var swapchainCreateInfo = new SwapchainCreateInfoKHR
{
SType = StructureType.SwapchainCreateInfoKhr,
Surface = surface.ApiHandle,
MinImageCount = imageCount,
ImageFormat = surfaceFormat.Format,
ImageColorSpace = surfaceFormat.ColorSpace,
ImageExtent = swapchainExtent,
ImageUsage =
ImageUsageFlags.ImageUsageColorAttachmentBit | ImageUsageFlags.ImageUsageTransferDstBit,
ImageSharingMode = SharingMode.Exclusive,
ImageArrayLayers = 1,
PreTransform = supportsIdentityTransform && isRotated ?
SurfaceTransformFlagsKHR.SurfaceTransformIdentityBitKhr :
capabilities.CurrentTransform,
CompositeAlpha = compositeAlphaFlags,
PresentMode = presentMode,
Clipped = true,
OldSwapchain = oldswapchain ?? new SwapchainKHR()
};
_swapchainExtension.CreateSwapchain(device.InternalHandle, swapchainCreateInfo, null, out var swapchain)
.ThrowOnError();
if (oldswapchain != null)
{
_swapchainExtension.DestroySwapchain(device.InternalHandle, oldswapchain.Value, null);
}
return(swapchain);
}
internal bool CanSurfacePresent(VulkanPhysicalDevice physicalDevice)
{
SurfaceExtension.GetPhysicalDeviceSurfaceSupport(physicalDevice.InternalHandle, physicalDevice.QueueFamilyIndex, ApiHandle, out var isSupported);
return(isSupported);
}