internal SwapchainKhr(Device parent, ref SwapchainCreateInfoKhr createInfo, ref AllocationCallbacks?allocator)
{
Parent = parent;
Allocator = allocator;
Format = createInfo.ImageFormat;
long handle;
createInfo.ToNative(out SwapchainCreateInfoKhr.Native nativeCreateInfo);
Result result = vkCreateSwapchainKHR(Parent, &nativeCreateInfo, NativeAllocator, &handle);
nativeCreateInfo.Free();
VulkanException.ThrowForInvalidResult(result);
Handle = handle;
}
private void rebuildSwapchain()
{
var sCaps = VkKhr.PhysicalDeviceExtensions.GetSurfaceCapabilitiesKhr(_vkPhysicalDevice, Surface);
// Calculate the size of the images
if (sCaps.CurrentExtent.Width != Int32.MaxValue) // We have to use the given size
{
Extent = sCaps.CurrentExtent;
}
else // We can choose an extent, but we will just make it the size of the window
{
Extent = Point.Max(sCaps.MinImageExtent, Point.Min(sCaps.MaxImageExtent, _window.Size));
}
// Calculate the number of images
int imCount = sCaps.MinImageCount + 1;
if (sCaps.MaxImageCount != 0)
{
imCount = Math.Min(imCount, sCaps.MaxImageCount);
}
_syncObjects.MaxInflightFrames = (uint)Math.Min(imCount, MAX_INFLIGHT_FRAMES);
// Create the swapchain
var oldSwapChain = _swapChain;
VkKhr.SwapchainCreateInfoKhr cInfo = new VkKhr.SwapchainCreateInfoKhr(
Surface,
_surfaceFormat.Format,
Extent,
minImageCount: imCount,
imageColorSpace: _surfaceFormat.ColorSpace,
imageUsage: Vk.ImageUsages.ColorAttachment | Vk.ImageUsages.TransferDst,
presentMode: _presentMode,
oldSwapchain: oldSwapChain
);
_swapChain = VkKhr.DeviceExtensions.CreateSwapchainKhr(_vkDevice, cInfo);
// Destroy the old swapchain
oldSwapChain?.Dispose();
// Get the new swapchain images
var imgs = _swapChain.GetImages();
_swapChainImages = new SwapchainImage[imgs.Length];
imgs.ForEach((img, idx) => {
Vk.ImageViewCreateInfo vInfo = new Vk.ImageViewCreateInfo(
_surfaceFormat.Format,
DEFAULT_SUBRESOURCE_RANGE,
viewType: Vk.ImageViewType.Image2D,
components: default
);
var view = img.CreateView(vInfo);
_swapChainImages[idx] = new SwapchainImage {
Image = img, View = view,
TransferBarrier = new Vk.ImageMemoryBarrier(
img,
new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1),
Vk.Accesses.ColorAttachmentRead,
Vk.Accesses.TransferWrite,
Vk.ImageLayout.PresentSrcKhr,
Vk.ImageLayout.TransferDstOptimal
),
PresentBarrier = new Vk.ImageMemoryBarrier(
img,
new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1),
Vk.Accesses.TransferWrite,
Vk.Accesses.ColorAttachmentRead,
Vk.ImageLayout.TransferDstOptimal,
Vk.ImageLayout.PresentSrcKhr
)
};
});
// Perform the initial layout transitions to present mode
_commandBuffer.Begin(ONE_TIME_SUBMIT);
var imb = new Vk.ImageMemoryBarrier(null, new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1),
Vk.Accesses.TransferWrite, Vk.Accesses.ColorAttachmentRead, Vk.ImageLayout.Undefined, Vk.ImageLayout.PresentSrcKhr);
_commandBuffer.CmdPipelineBarrier(Vk.PipelineStages.AllCommands, Vk.PipelineStages.AllCommands,
imageMemoryBarriers: _swapChainImages.Select(sci => { imb.Image = sci.Image; return(imb); }).ToArray());
_commandBuffer.End();
_presentQueue.Submit(new Vk.SubmitInfo(commandBuffers: new[] { _commandBuffer }), _blitFence);
_blitFence.Wait(); // Do not reset
// Report
LDEBUG($"Presentation swapchain rebuilt @ {Extent} " +
$"(F:{_surfaceFormat.Format}:{_surfaceFormat.ColorSpace==VkKhr.ColorSpaceKhr.SRgbNonlinear} I:{_swapChainImages.Length}:{_syncObjects.MaxInflightFrames}).");
Dirty = false;
}
/// <summary>
/// Create a swapchain.
/// </summary>
/// <param name="device">The device to create the swapchain for.</param>
/// <param name="createInfo">The structure specifying the parameters of the created swapchain.</param>
/// <param name="allocator">
/// The allocator used for host memory allocated for the swapchain object when there is no
/// more specific allocator available.
/// </param>
/// <returns>Created swapchain object.</returns>
/// <exception cref="VulkanException">Vulkan returns an error code.</exception>
public static SwapchainKhr CreateSwapchainKhr(this Device device, SwapchainCreateInfoKhr createInfo,
AllocationCallbacks?allocator = null)
{
return(new SwapchainKhr(device, ref createInfo, ref allocator));
}
