SwapChainSupportDetails QuerySwapChainSupport(PhysicalDevice device)
{
return(new SwapChainSupportDetails {
Capabilities = device.GetSurfaceCapabilities(this.surface),
Formats = device.GetSurfaceFormats(this.surface),
PresentModes = device.GetSurfacePresentModes(this.surface)
});
}
protected virtual void CreateSwapchain()
{
// surface format
var surfaceFormats = physicalDevice.GetSurfaceFormats(surface);
if (surfaceFormats.Length == 1 && surfaceFormats[0].Format == Format.Undefined)
{
backBufferFormat = Format.B8G8R8A8UNorm;
}
else
{
backBufferFormat = surfaceFormats[0].Format;
}
SurfaceCapabilities surfaceCapabilities;
physicalDevice.GetSurfaceCapabilities(surface, out surfaceCapabilities);
// Buffer count
uint desiredImageCount = surfaceCapabilities.MinImageCount + 1;
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;
}
// Present mode
var presentModes = physicalDevice.GetSurfacePresentModes(surface);
var swapChainPresentMode = PresentMode.Fifo;
if (presentModes.Contains(PresentMode.Mailbox))
{
swapChainPresentMode = PresentMode.Mailbox;
}
else if (presentModes.Contains(PresentMode.Immediate))
{
swapChainPresentMode = PresentMode.Immediate;
}
// Create swapchain
var swapchainCreateInfo = new SwapchainCreateInfo
{
StructureType = StructureType.SwapchainCreateInfo,
Surface = surface,
ImageSharingMode = SharingMode.Exclusive,
ImageExtent = new Extent2D((uint)form.ClientSize.Width, (uint)form.ClientSize.Height),
ImageArrayLayers = 1,
ImageFormat = backBufferFormat,
ImageColorSpace = ColorSpace.SRgbNonlinear,
ImageUsage = ImageUsageFlags.ColorAttachment,
PresentMode = swapChainPresentMode,
CompositeAlpha = CompositeAlphaFlags.Opaque,
MinImageCount = desiredImageCount,
PreTransform = preTransform,
Clipped = true
// OldSwapchain =
};
swapchain = device.CreateSwapchain(ref swapchainCreateInfo);
// Initialize swapchain image layout
backBuffers = device.GetSwapchainImages(swapchain);
foreach (var image in backBuffers)
{
SetImageLayout(image, ImageAspectFlags.Color, ImageLayout.Undefined, ImageLayout.PresentSource);
}
Flush();
}
