internal unsafe void EndPresentation(VulkanCommandBufferPool.VulkanCommandBuffer commandBuffer)
{
VulkanMemoryHelper.TransitionLayout(_device, commandBuffer.InternalHandle,
_swapchainImages[_nextImage], ImageLayout.TransferDstOptimal,
AccessFlags.AccessNoneKhr,
ImageLayout.PresentSrcKhr,
AccessFlags.AccessNoneKhr,
1);
commandBuffer.Submit(
stackalloc[] { _semaphorePair.ImageAvailableSemaphore },
internal void BlitImageToCurrentImage(VulkanSurfaceRenderTarget renderTarget, CommandBuffer commandBuffer)
{
var image = renderTarget.GetImage();
VulkanMemoryHelper.TransitionLayout(_device, commandBuffer,
image.InternalHandle.Value, (ImageLayout)image.CurrentLayout,
AccessFlags.AccessNoneKhr,
ImageLayout.TransferSrcOptimal,
AccessFlags.AccessTransferReadBit,
renderTarget.MipLevels);
var srcBlitRegion = new ImageBlit
{
SrcOffsets = new ImageBlit.SrcOffsetsBuffer
{
Element0 = new Offset3D(0, 0, 0),
Element1 = new Offset3D(renderTarget.Size.Width, renderTarget.Size.Height, 1),
},
DstOffsets = new ImageBlit.DstOffsetsBuffer
{
Element0 = new Offset3D(0, 0, 0),
Element1 = new Offset3D(Size.Width, Size.Height, 1),
},
SrcSubresource = new ImageSubresourceLayers
{
AspectMask = ImageAspectFlags.ImageAspectColorBit,
BaseArrayLayer = 0,
LayerCount = 1,
MipLevel = 0
},
DstSubresource = new ImageSubresourceLayers
{
AspectMask = ImageAspectFlags.ImageAspectColorBit,
BaseArrayLayer = 0,
LayerCount = 1,
MipLevel = 0
}
};
_device.Api.CmdBlitImage(commandBuffer, image.InternalHandle.Value,
ImageLayout.TransferSrcOptimal,
_swapchainImages[_nextImage],
ImageLayout.TransferDstOptimal,
1,
srcBlitRegion,
Filter.Linear);
VulkanMemoryHelper.TransitionLayout(_device, commandBuffer,
image.InternalHandle.Value, ImageLayout.TransferSrcOptimal,
AccessFlags.AccessTransferReadBit,
(ImageLayout)image.CurrentLayout,
AccessFlags.AccessNoneKhr,
renderTarget.MipLevels);
}
internal void TransitionLayout(ImageLayout destinationLayout, AccessFlags destinationAccessFlags)
{
var commandBuffer = _commandBufferPool.CreateCommandBuffer();
commandBuffer.BeginRecording();
VulkanMemoryHelper.TransitionLayout(_device, commandBuffer.InternalHandle, InternalHandle.Value,
_currentLayout,
_currentAccessFlags,
destinationLayout, destinationAccessFlags,
MipLevels);
commandBuffer.EndRecording();
commandBuffer.Submit();
_currentLayout = destinationLayout;
_currentAccessFlags = destinationAccessFlags;
}
internal VulkanCommandBufferPool.VulkanCommandBuffer StartPresentation()
{
_nextImage = 0;
while (true)
{
var acquireResult = _swapchainExtension.AcquireNextImage(
_device.InternalHandle,
_swapchain,
ulong.MaxValue,
_semaphorePair.ImageAvailableSemaphore,
new Fence(),
ref _nextImage);
if (acquireResult == Result.ErrorOutOfDateKhr ||
acquireResult == Result.SuboptimalKhr)
{
Recreate();
}
else
{
acquireResult.ThrowOnError();
break;
}
}
var commandBuffer = CommandBufferPool.CreateCommandBuffer();
commandBuffer.BeginRecording();
VulkanMemoryHelper.TransitionLayout(_device, commandBuffer.InternalHandle,
_swapchainImages[_nextImage], ImageLayout.Undefined,
AccessFlags.AccessNoneKhr,
ImageLayout.TransferDstOptimal,
AccessFlags.AccessTransferWriteBit,
1);
return(commandBuffer);
}
public unsafe void Initialize()
{
if (!InternalHandle.HasValue)
{
MipLevels = MipLevels != 0 ? MipLevels : (uint)Math.Floor(Math.Log(Math.Max(Size.Width, Size.Height), 2));
var imageCreateInfo = new ImageCreateInfo
{
SType = StructureType.ImageCreateInfo,
ImageType = ImageType.ImageType2D,
Format = Format,
Extent = new Extent3D((uint?)Size.Width, (uint?)Size.Height, 1),
MipLevels = MipLevels,
ArrayLayers = 1,
Samples = SampleCountFlags.SampleCount1Bit,
Tiling = Tiling,
Usage = _imageUsageFlags,
SharingMode = SharingMode.Exclusive,
InitialLayout = ImageLayout.Undefined,
Flags = ImageCreateFlags.ImageCreateMutableFormatBit
};
_device.Api.CreateImage(_device.InternalHandle, imageCreateInfo, null, out var image).ThrowOnError();
InternalHandle = image;
_device.Api.GetImageMemoryRequirements(_device.InternalHandle, InternalHandle.Value,
out var memoryRequirements);
var memoryAllocateInfo = new MemoryAllocateInfo
{
SType = StructureType.MemoryAllocateInfo,
AllocationSize = memoryRequirements.Size,
MemoryTypeIndex = (uint)VulkanMemoryHelper.FindSuitableMemoryTypeIndex(
_physicalDevice,
memoryRequirements.MemoryTypeBits, MemoryPropertyFlags.MemoryPropertyDeviceLocalBit)
};
_device.Api.AllocateMemory(_device.InternalHandle, memoryAllocateInfo, null,
out var imageMemory);
_imageMemory = imageMemory;
_device.Api.BindImageMemory(_device.InternalHandle, InternalHandle.Value, _imageMemory, 0);
MemorySize = memoryRequirements.Size;
var componentMapping = new ComponentMapping(
ComponentSwizzle.Identity,
ComponentSwizzle.Identity,
ComponentSwizzle.Identity,
ComponentSwizzle.Identity);
AspectFlags = ImageAspectFlags.ImageAspectColorBit;
var subresourceRange = new ImageSubresourceRange(AspectFlags, 0, MipLevels, 0, 1);
var imageViewCreateInfo = new ImageViewCreateInfo
{
SType = StructureType.ImageViewCreateInfo,
Image = InternalHandle.Value,
ViewType = ImageViewType.ImageViewType2D,
Format = Format,
Components = componentMapping,
SubresourceRange = subresourceRange
};
_device.Api
.CreateImageView(_device.InternalHandle, imageViewCreateInfo, null, out var imageView)
.ThrowOnError();
_imageView = imageView;
_currentLayout = ImageLayout.Undefined;
TransitionLayout(ImageLayout.ColorAttachmentOptimal, AccessFlags.AccessNoneKhr);
}
}
