protected override void ResizeDepthStencilBuffer(int width, int height, PixelFormat format)
{
var newTextureDescrition = DepthStencilBuffer.Description;
newTextureDescrition.Width = width;
newTextureDescrition.Height = height;
// Manually update the texture
DepthStencilBuffer.OnDestroyed();
// Put it in our back buffer texture
DepthStencilBuffer.InitializeFrom(newTextureDescrition);
}
protected override void ResizeDepthStencilBuffer(int width, int height, PixelFormat format)
{
var newTextureDescription = DepthStencilBuffer.Description;
newTextureDescription.Width = width;
newTextureDescription.Height = height;
// Manually update the texture
DepthStencilBuffer.OnDestroyed();
// Manually update all children textures
var fastList = DestroyChildrenTextures(DepthStencilBuffer);
// Put it in our back buffer texture
DepthStencilBuffer.InitializeFrom(newTextureDescription);
foreach (var texture in fastList)
{
texture.InitializeFrom(DepthStencilBuffer, texture.ViewDescription);
}
}
private unsafe void CreateSwapChain()
{
// we are destroying the swap chain now, because it causes lots of other things to be reset too (like all commandbufferpools)
// normally we pass the old swapchain to the create new swapchain Vulkan call... but I haven't figured out a stable way of
// preserving the old swap chain to be passed during the new swapchain creation, and then destroying just the old swapchain parts.
// might have to reset the command buffers and pipeline stuff after swapchain handoff... for another day e.g. TODO
DestroySwapchain();
var formats = new[] { PixelFormat.B8G8R8A8_UNorm_SRgb, PixelFormat.R8G8B8A8_UNorm_SRgb, PixelFormat.B8G8R8A8_UNorm, PixelFormat.R8G8B8A8_UNorm };
foreach (var format in formats)
{
var nativeFromat = VulkanConvertExtensions.ConvertPixelFormat(format);
FormatProperties formatProperties;
GraphicsDevice.NativePhysicalDevice.GetFormatProperties(nativeFromat, out formatProperties);
if ((formatProperties.OptimalTilingFeatures & FormatFeatureFlags.ColorAttachment) != 0)
{
Description.BackBufferFormat = format;
break;
}
}
// Queue
// TODO VULKAN: Queue family is needed when creating the Device, so here we can just do a sanity check?
var queueNodeIndex = GraphicsDevice.NativePhysicalDevice.QueueFamilyProperties.
Where((properties, index) => (properties.QueueFlags & QueueFlags.Graphics) != 0 && GraphicsDevice.NativePhysicalDevice.GetSurfaceSupport((uint)index, surface)).
Select((properties, index) => index).First();
// Surface format
var backBufferFormat = VulkanConvertExtensions.ConvertPixelFormat(Description.BackBufferFormat);
var surfaceFormats = GraphicsDevice.NativePhysicalDevice.GetSurfaceFormats(surface);
if ((surfaceFormats.Length != 1 || surfaceFormats[0].Format != Format.Undefined) &&
!surfaceFormats.Any(x => x.Format == backBufferFormat))
{
backBufferFormat = surfaceFormats[0].Format;
}
// Create swapchain
SurfaceCapabilities surfaceCapabilities;
GraphicsDevice.NativePhysicalDevice.GetSurfaceCapabilities(surface, out surfaceCapabilities);
// Buffer count
uint desiredImageCount = Math.Max(surfaceCapabilities.MinImageCount, 4);
if (surfaceCapabilities.MaxImageCount > 0 && desiredImageCount > surfaceCapabilities.MaxImageCount)
{
desiredImageCount = surfaceCapabilities.MaxImageCount;
}
// Transform
SurfaceTransformFlags preTransform;
if ((surfaceCapabilities.SupportedTransforms & SurfaceTransformFlags.Identity) != 0)
{
preTransform = SurfaceTransformFlags.Identity;
}
else
{
preTransform = surfaceCapabilities.CurrentTransform;
}
// Find present mode
var swapChainPresentMode = PresentMode.Fifo; // Always supported, but slow
if (Description.PresentationInterval == PresentInterval.Immediate)
{
var presentModes = GraphicsDevice.NativePhysicalDevice.GetSurfacePresentModes(surface);
if (presentModes.Contains(PresentMode.Mailbox))
{
swapChainPresentMode = PresentMode.Mailbox;
}
}
// Create swapchain
var swapchainCreateInfo = new SwapchainCreateInfo
{
StructureType = StructureType.SwapchainCreateInfo,
Surface = surface,
ImageArrayLayers = 1,
ImageSharingMode = SharingMode.Exclusive,
ImageExtent = new Extent2D((uint)Description.BackBufferWidth, (uint)Description.BackBufferHeight),
ImageFormat = backBufferFormat,
ImageColorSpace = Description.ColorSpace == ColorSpace.Gamma ? SharpVulkan.ColorSpace.SRgbNonlinear : 0,
ImageUsage = ImageUsageFlags.ColorAttachment | ImageUsageFlags.TransferDestination | (surfaceCapabilities.SupportedUsageFlags & ImageUsageFlags.TransferSource), // TODO VULKAN: Use off-screen buffer to emulate
PresentMode = swapChainPresentMode,
CompositeAlpha = CompositeAlphaFlags.Opaque,
MinImageCount = desiredImageCount,
PreTransform = preTransform,
OldSwapchain = Swapchain.Null,
Clipped = true
};
swapChain = GraphicsDevice.NativeDevice.CreateSwapchain(ref swapchainCreateInfo);
CreateBackBuffers();
// resize/create stencil buffers
var newTextureDescription = DepthStencilBuffer.Description;
newTextureDescription.Width = Description.BackBufferWidth;
newTextureDescription.Height = Description.BackBufferHeight;
// Manually update the texture
DepthStencilBuffer.OnDestroyed();
// Put it in our back buffer texture
DepthStencilBuffer.InitializeFrom(newTextureDescription);
// start new presentation thread
runPresenter = true;
presenterThread = new Thread(new ThreadStart(PresenterThread));
presenterThread.IsBackground = true;
presenterThread.Name = "Vulkan Presentation Thread";
presenterThread.Priority = ThreadPriority.AboveNormal;
presenterThread.Start();
}
private unsafe void CreateSwapChain()
{
// we are destroying the swap chain now, because it causes lots of other things to be reset too (like all commandbufferpools)
// normally we pass the old swapchain to the create new swapchain Vulkan call... but I haven't figured out a stable way of
// preserving the old swap chain to be passed during the new swapchain creation, and then destroying just the old swapchain parts.
// might have to reset the command buffers and pipeline stuff after swapchain handoff... for another day e.g. TODO
DestroySwapchain();
var formats = new[] { PixelFormat.B8G8R8A8_UNorm_SRgb, PixelFormat.R8G8B8A8_UNorm_SRgb, PixelFormat.B8G8R8A8_UNorm, PixelFormat.R8G8B8A8_UNorm };
foreach (var format in formats)
{
var nativeFromat = VulkanConvertExtensions.ConvertPixelFormat(format);
vkGetPhysicalDeviceFormatProperties(GraphicsDevice.NativePhysicalDevice, nativeFromat, out var formatProperties);
if ((formatProperties.optimalTilingFeatures & VkFormatFeatureFlags.ColorAttachment) != 0)
{
Description.BackBufferFormat = format;
break;
}
}
// Queue
// TODO VULKAN: Queue family is needed when creating the Device, so here we can just do a sanity check?
var queueNodeIndex = vkGetPhysicalDeviceQueueFamilyProperties(GraphicsDevice.NativePhysicalDevice).ToArray().
Where((properties, index) => (properties.queueFlags & VkQueueFlags.Graphics) != 0 && vkGetPhysicalDeviceSurfaceSupportKHR(GraphicsDevice.NativePhysicalDevice, (uint)index, surface, out var supported) == VkResult.Success && supported == Vortice.Vulkan.VkBool32.True).
Select((properties, index) => index).First();
// Surface format
var backBufferFormat = VulkanConvertExtensions.ConvertPixelFormat(Description.BackBufferFormat);
var surfaceFormats = vkGetPhysicalDeviceSurfaceFormatsKHR(GraphicsDevice.NativePhysicalDevice, surface).ToArray();
if ((surfaceFormats.Length != 1 || surfaceFormats[0].format != VkFormat.Undefined) &&
!surfaceFormats.Any(x => x.format == backBufferFormat))
{
backBufferFormat = surfaceFormats[0].format;
}
// Create swapchain
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(GraphicsDevice.NativePhysicalDevice, surface, out var surfaceCapabilities);
// Buffer count
uint desiredImageCount = Math.Max(surfaceCapabilities.minImageCount, 6);
if (surfaceCapabilities.maxImageCount > 0 && desiredImageCount > surfaceCapabilities.maxImageCount)
{
desiredImageCount = surfaceCapabilities.maxImageCount;
}
// Transform
VkSurfaceTransformFlagsKHR preTransform;
if ((surfaceCapabilities.supportedTransforms & VkSurfaceTransformFlagsKHR.Identity) != 0)
{
preTransform = VkSurfaceTransformFlagsKHR.Identity;
}
else
{
preTransform = surfaceCapabilities.currentTransform;
}
// Find present mode
var swapChainPresentMode = VkPresentModeKHR.Fifo; // Always supported, but slow
if (Description.PresentationInterval == PresentInterval.Immediate)
{
var presentModes = vkGetPhysicalDeviceSurfacePresentModesKHR(GraphicsDevice.NativePhysicalDevice, surface);
foreach (var pm in presentModes)
{
if (pm == VkPresentModeKHR.Mailbox)
{
swapChainPresentMode = VkPresentModeKHR.Mailbox;
break;
}
}
}
// Create swapchain
var swapchainCreateInfo = new VkSwapchainCreateInfoKHR
{
sType = VkStructureType.SwapchainCreateInfoKHR,
surface = surface,
imageArrayLayers = 1,
imageSharingMode = VkSharingMode.Exclusive,
imageExtent = new Vortice.Vulkan.VkExtent2D(Description.BackBufferWidth, Description.BackBufferHeight),
imageFormat = backBufferFormat,
imageColorSpace = Description.ColorSpace == ColorSpace.Gamma ? VkColorSpaceKHR.SrgbNonLinear : 0,
imageUsage = VkImageUsageFlags.ColorAttachment | VkImageUsageFlags.TransferDst | (surfaceCapabilities.supportedUsageFlags & VkImageUsageFlags.TransferSrc), // TODO VULKAN: Use off-screen buffer to emulate
presentMode = swapChainPresentMode,
compositeAlpha = VkCompositeAlphaFlagsKHR.Opaque,
minImageCount = desiredImageCount,
preTransform = preTransform,
oldSwapchain = swapChain,
clipped = Vortice.Vulkan.VkBool32.True
};
vkCreateSwapchainKHR(GraphicsDevice.NativeDevice, &swapchainCreateInfo, null, out swapChain);
CreateBackBuffers();
// resize/create stencil buffers
var newTextureDescription = DepthStencilBuffer.Description;
newTextureDescription.Width = Description.BackBufferWidth;
newTextureDescription.Height = Description.BackBufferHeight;
// Manually update the texture
DepthStencilBuffer.OnDestroyed();
// Put it in our back buffer texture
DepthStencilBuffer.InitializeFrom(newTextureDescription);
}