internal unsafe SharpVulkan.DescriptorSet AllocateDescriptorSet(DescriptorSetLayout descriptorSetLayout)
{
// Keep track of descriptor pool usage
bool isPoolExhausted = ++allocatedSetCount > GraphicsDevice.MaxDescriptorSetCount;
for (int i = 0; i < DescriptorSetLayout.DescriptorTypeCount; i++)
{
allocatedTypeCounts[i] += descriptorSetLayout.TypeCounts[i];
if (allocatedTypeCounts[i] > GraphicsDevice.MaxDescriptorTypeCounts[i])
{
isPoolExhausted = true;
break;
}
}
if (isPoolExhausted)
{
return SharpVulkan.DescriptorSet.Null;
}
// Allocate new descriptor set
var nativeLayoutCopy = descriptorSetLayout.NativeLayout;
var allocateInfo = new DescriptorSetAllocateInfo
{
StructureType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = NativeDescriptorPool,
DescriptorSetCount = 1,
SetLayouts = new IntPtr(&nativeLayoutCopy)
};
SharpVulkan.DescriptorSet descriptorSet;
GraphicsDevice.NativeDevice.AllocateDescriptorSets(ref allocateInfo, &descriptorSet);
return descriptorSet;
}
public unsafe DescriptorSets(Api api, DescriptorPool descriptorPool, DescriptorSetLayout layout, Dictionary <uint, DescriptorType> bindingTypes, ulong size)
{
(_api, _descriptorPool, _bindingTypes) = (api, descriptorPool, bindingTypes);
Span <VkDescriptorSetLayout> layouts = stackalloc VkDescriptorSetLayout[(int)size];
for (int i = 0; i < layouts.Length; i++)
{
layouts[i] = layout.VkDescriptorSetLayout;
}
var allocInfo = new DescriptorSetAllocateInfo();
allocInfo.SType = StructureType.DescriptorSetAllocateInfo;
allocInfo.DescriptorPool = descriptorPool.VkDescriptorPool;
allocInfo.DescriptorSetCount = (uint)size;
allocInfo.PSetLayouts = (VkDescriptorSetLayout *)Unsafe.AsPointer(ref layouts[0]);
_vkDescriptorSets = new DescriptorSet[(int)size];
fixed(DescriptorSet *pDescriptorSets = &_vkDescriptorSets[0])
{
Util.Verify(
_api.Vk.AllocateDescriptorSets(_api.Device.VkDevice, allocInfo, pDescriptorSets),
$"{nameof(descriptorPool)}: Cannot allocate descriptor sets");
}
}
public unsafe DescriptorSetCollection AllocateDescriptorSets(ReadOnlySpan <DescriptorSetLayout> layouts)
{
Debug.Assert(!_done);
_totalSets += layouts.Length;
_setsInUse += layouts.Length;
DescriptorSet[] descriptorSets = new DescriptorSet[layouts.Length];
fixed(DescriptorSet *pDescriptorSets = descriptorSets)
{
fixed(DescriptorSetLayout *pLayouts = layouts)
{
var descriptorSetAllocateInfo = new DescriptorSetAllocateInfo()
{
SType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = _pool,
DescriptorSetCount = (uint)layouts.Length,
PSetLayouts = pLayouts
};
Api.AllocateDescriptorSets(Device, &descriptorSetAllocateInfo, pDescriptorSets).ThrowOnError();
}
}
return(new DescriptorSetCollection(this, descriptorSets));
}
private void CreateDescriptorSet()
{
var allocInfo = new DescriptorSetAllocateInfo()
{
DescriptorPool = vkDescriptorPool,
SetLayouts = new DescriptorSetLayout[] { vkDescriptorSetLayout },
};
vkDescriptorSet = vkDevice.AllocateDescriptorSets(allocInfo)[0];
var bufferInfo = new DescriptorBufferInfo()
{
Buffer = vkUniformBuffer,
Offset = 0,
Range = Marshal.SizeOf <UniformBufferObject>(),
};
var descriptorWrite = new WriteDescriptorSet()
{
DstSet = vkDescriptorSet,
DstBinding = 0,
DstArrayElement = 0,
DescriptorType = DescriptorType.UniformBuffer,
DescriptorCount = 1,
BufferInfo = new DescriptorBufferInfo[] { bufferInfo },
};
vkDevice.UpdateDescriptorSet(descriptorWrite, null);
}
private DescriptorSet[] AllocateDescriptorSets()
{
fixed(DescriptorSetLayout *pLayouts = this.DescriptorSetLayouts)
{
DescriptorSetAllocateInfo allocInfo = new DescriptorSetAllocateInfo
{
SType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = this.DescriptorPool,
DescriptorSetCount = (uint)this.DescriptorSetLayouts.Length,
PSetLayouts = pLayouts
};
var arr = new DescriptorSet[this.DescriptorSetLayouts.Length];
fixed(DescriptorSet *pSets = arr)
{
var res = VkApi.AllocateDescriptorSets(this.Device, &allocInfo, pSets);
if (res != Result.Success)
{
throw new VMASharp.VulkanResultException("Failed to allocate Descriptor Sets!", res);
}
return(arr);
}
}
}
internal unsafe SharpVulkan.DescriptorSet AllocateDescriptorSet(DescriptorSetLayout descriptorSetLayout)
{
// Keep track of descriptor pool usage
bool isPoolExhausted = ++allocatedSetCount > GraphicsDevice.MaxDescriptorSetCount;
for (int i = 0; i < DescriptorSetLayout.DescriptorTypeCount; i++)
{
allocatedTypeCounts[i] += descriptorSetLayout.TypeCounts[i];
if (allocatedTypeCounts[i] > GraphicsDevice.MaxDescriptorTypeCounts[i])
{
isPoolExhausted = true;
break;
}
}
if (isPoolExhausted)
{
return(SharpVulkan.DescriptorSet.Null);
}
// Allocate new descriptor set
var nativeLayoutCopy = descriptorSetLayout.NativeLayout;
var allocateInfo = new DescriptorSetAllocateInfo
{
StructureType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = NativeDescriptorPool,
DescriptorSetCount = 1,
SetLayouts = new IntPtr(&nativeLayoutCopy)
};
SharpVulkan.DescriptorSet descriptorSet;
GraphicsDevice.NativeDevice.AllocateDescriptorSets(ref allocateInfo, &descriptorSet);
return(descriptorSet);
}
protected override void CreateDescriptorSets()
{
var layouts = new DescriptorSetLayout[images.Length];
for (int i = 0; i < layouts.Length; i++)
{
layouts[i] = descriptorSetLayout;
}
var allocInfo = new DescriptorSetAllocateInfo
{
DescriptorPool = descriptorPool,
DescriptorSetCount = (uint)images.Length,
SetLayouts = layouts
};
descriptorSets = device.AllocateDescriptorSets(allocInfo);
for (int a = 0; a < descriptorSets.Length; a++)
{
var bufferInfo = new DescriptorBufferInfo
{
Buffer = uniformBuffers[a],
Offset = 0,
Range = (sizeof(float) * 16) * 3
};
var imageInfo = new DescriptorImageInfo
{
ImageLayout = ImageLayout.ShaderReadOnlyOptimal,
ImageView = textureImageView,
Sampler = textureSampler
};
//TODO: Dispose this
var descriptorWrites = new WriteDescriptorSet[]
{
new WriteDescriptorSet
{
DstSet = descriptorSets[a],
DstBinding = 0,
DstArrayElement = 0,
DescriptorType = DescriptorType.UniformBuffer,
DescriptorCount = 1,
BufferInfo = new DescriptorBufferInfo[] { bufferInfo }
},
new WriteDescriptorSet
{
DstSet = descriptorSets[a],
DstBinding = 1,
DstArrayElement = 0,
DescriptorType = DescriptorType.CombinedImageSampler,
DescriptorCount = 1,
ImageInfo = new DescriptorImageInfo[] { imageInfo }
}
};
//device.UpdateDescriptorSet(descriptorWrites[0], null);
//device.UpdateDescriptorSet(descriptorWrites[1], null);
device.UpdateDescriptorSets(descriptorWrites, null);
}
}
/* public void Write(string name, DescriptorImageInfo myInfo)
* internal void WriteUniform<T>(string v, T mYBuffer) where T : struct*/
internal void AllocateFrom(DescriptorPool myNewPoolObject)
{
DescriptorSetLayout myBindings = GetDescriptorSetLayout();
DescriptorSetLayoutCreateInfo myInfo = new DescriptorSetLayoutCreateInfo();
DescriptorSetAllocateInfo mySetAlloc = new DescriptorSetAllocateInfo(); //TODO: Garbage and memory stuff
mySetAlloc.SetLayouts = new DescriptorSetLayout[] { myBindings };
mySetAlloc.DescriptorPool = myNewPoolObject;
myDSet = VulkanRenderer.SelectedLogicalDevice.AllocateDescriptorSets(mySetAlloc);
// Debug.Assert(myDSet.Count() == myBindings.Count);
}
DescriptorSet CreateDescriptorSet(DescriptorPool pool, DescriptorSetLayout layout, ImageData imageData, UniformData uniformData)
{
var allocInfo = new DescriptorSetAllocateInfo(pool, new[] { layout });
var sets = device.AllocateDescriptorSets(allocInfo);
var descriptorSet = sets.First();
var texDescriptor = new DescriptorImageInfo(imageData.Sampler, imageData.View, ImageLayout.General);
var writeDescriptorSets = new[]
{
new WriteDescriptorSet(descriptorSet, 0, 0, DescriptorType.UniformBuffer, null, null, null),
new WriteDescriptorSet(descriptorSet, 1, 0, DescriptorType.CombinedImageSampler, null, null, null),
};
writeDescriptorSets[0].BufferInfo = new[] { uniformData.Descriptor };
writeDescriptorSets[1].ImageInfo = new[] { texDescriptor };
device.UpdateDescriptorSets(writeDescriptorSets, null);
return(descriptorSet);
}
DescriptorSet[] CreateDescriptorSets()
{
var typeCount = new DescriptorPoolSize {
Type = DescriptorType.UniformBuffer,
DescriptorCount = 1
};
var descriptorPoolCreateInfo = new DescriptorPoolCreateInfo {
PoolSizes = new DescriptorPoolSize [] { typeCount },
MaxSets = 1
};
var descriptorPool = device.CreateDescriptorPool(descriptorPoolCreateInfo);
var descriptorSetAllocateInfo = new DescriptorSetAllocateInfo {
SetLayouts = new DescriptorSetLayout [] { descriptorSetLayout },
DescriptorPool = descriptorPool
};
return(device.AllocateDescriptorSets(descriptorSetAllocateInfo));
}
private unsafe bool TryAllocateDescriptorSets(ReadOnlySpan <DescriptorSetLayout> layouts, bool isTry, out DescriptorSetCollection dsc)
{
Debug.Assert(!_done);
DescriptorSet[] descriptorSets = new DescriptorSet[layouts.Length];
fixed(DescriptorSet *pDescriptorSets = descriptorSets)
{
fixed(DescriptorSetLayout *pLayouts = layouts)
{
var descriptorSetAllocateInfo = new DescriptorSetAllocateInfo()
{
SType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = _pool,
DescriptorSetCount = (uint)layouts.Length,
PSetLayouts = pLayouts
};
var result = Api.AllocateDescriptorSets(Device, &descriptorSetAllocateInfo, pDescriptorSets);
if (isTry && result == Result.ErrorOutOfPoolMemory)
{
_totalSets = (int)_capacity;
_done = true;
DestroyIfDone();
dsc = default;
return(false);
}
result.ThrowOnError();
}
}
_totalSets += layouts.Length;
_setsInUse += layouts.Length;
dsc = new DescriptorSetCollection(this, descriptorSets);
return(true);
}
public void CreateDesriptorSets(string bufName, int size)
{
DescriptorSetAllocateInfo dsai = new DescriptorSetAllocateInfo(
mChainImageViews.Length, mDSLs);
mDSets = mDPool.AllocateSets(dsai);
for (int i = 0; i < mChainImageViews.Length; i++)
{
DescriptorBufferInfo dbi = new DescriptorBufferInfo();
dbi.Buffer = mBuffers[bufName + i];
dbi.Range = size;
WriteDescriptorSet wds = new WriteDescriptorSet();
wds.DstSet = mDSets[i];
wds.DescriptorType = DescriptorType.UniformBuffer;
wds.DescriptorCount = 1;
wds.BufferInfo = new DescriptorBufferInfo[] { dbi };
mDPool.UpdateSets(new WriteDescriptorSet[] { wds });
}
}
private void DrawInternal()
{
// Update descriptors
var descriptorSets = stackalloc DescriptorSet[2];
var setLayouts = stackalloc DescriptorSetLayout[2];
setLayouts[0] = setLayouts[1] = descriptorSetLayout;
var allocateInfo = new DescriptorSetAllocateInfo
{
StructureType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = descriptorPool,
DescriptorSetCount = 2,
SetLayouts = new IntPtr(setLayouts),
};
device.AllocateDescriptorSets(ref allocateInfo, descriptorSets);
var bufferInfo = new DescriptorBufferInfo
{
Buffer = uniformBuffer,
Range = Vulkan.WholeSize
};
var write = new WriteDescriptorSet
{
StructureType = StructureType.WriteDescriptorSet,
DescriptorCount = 1,
DestinationSet = descriptorSets[0],
DestinationBinding = 0,
DescriptorType = DescriptorType.UniformBuffer,
BufferInfo = new IntPtr(&bufferInfo)
};
var copy = new CopyDescriptorSet
{
StructureType = StructureType.CopyDescriptorSet,
DescriptorCount = 1,
SourceBinding = 0,
DestinationBinding = 0,
SourceSet = descriptorSets[0],
DestinationSet = descriptorSets[1]
};
device.UpdateDescriptorSets(1, &write, 0, null);
device.UpdateDescriptorSets(0, null, 1, ©);
// Post-present transition
var memoryBarrier = new ImageMemoryBarrier
{
StructureType = StructureType.ImageMemoryBarrier,
Image = backBuffers[currentBackBufferIndex],
SubresourceRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1),
OldLayout = ImageLayout.PresentSource,
NewLayout = ImageLayout.ColorAttachmentOptimal,
SourceAccessMask = AccessFlags.MemoryRead,
DestinationAccessMask = AccessFlags.ColorAttachmentWrite
};
commandBuffer.PipelineBarrier(PipelineStageFlags.TopOfPipe, PipelineStageFlags.TopOfPipe, DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
// Clear render target
var clearRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1);
commandBuffer.ClearColorImage(backBuffers[currentBackBufferIndex], ImageLayout.TransferDestinationOptimal, new RawColor4(0, 0, 0, 1), 1, &clearRange);
// Begin render pass
var renderPassBeginInfo = new RenderPassBeginInfo
{
StructureType = StructureType.RenderPassBeginInfo,
RenderPass = renderPass,
Framebuffer = framebuffers[currentBackBufferIndex],
RenderArea = new Rect2D(0, 0, (uint)form.ClientSize.Width, (uint)form.ClientSize.Height),
};
commandBuffer.BeginRenderPass(ref renderPassBeginInfo, SubpassContents.Inline);
// Bind pipeline
commandBuffer.BindPipeline(PipelineBindPoint.Graphics, pipeline);
// Bind descriptor sets
commandBuffer.BindDescriptorSets(PipelineBindPoint.Graphics, pipelineLayout, 0, 1, descriptorSets + 1, 0, null);
// Set viewport and scissor
var viewport = new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height);
commandBuffer.SetViewport(0, 1, &viewport);
var scissor = new Rect2D(0, 0, (uint)form.ClientSize.Width, (uint)form.ClientSize.Height);
commandBuffer.SetScissor(0, 1, &scissor);
// Bind vertex buffer
var vertexBufferCopy = vertexBuffer;
ulong offset = 0;
commandBuffer.BindVertexBuffers(0, 1, &vertexBufferCopy, &offset);
// Draw vertices
commandBuffer.Draw(3, 1, 0, 0);
// End render pass
commandBuffer.EndRenderPass();
// Pre-present transition
memoryBarrier = new ImageMemoryBarrier
{
StructureType = StructureType.ImageMemoryBarrier,
Image = backBuffers[currentBackBufferIndex],
SubresourceRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1),
OldLayout = ImageLayout.ColorAttachmentOptimal,
NewLayout = ImageLayout.PresentSource,
SourceAccessMask = AccessFlags.ColorAttachmentWrite,
DestinationAccessMask = AccessFlags.MemoryRead
};
commandBuffer.PipelineBarrier(PipelineStageFlags.AllCommands, PipelineStageFlags.BottomOfPipe, DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
}
private void DrawInternal()
{
// Update descriptors
var descriptorSets = stackalloc DescriptorSet[2];
var setLayouts = stackalloc DescriptorSetLayout[2];
setLayouts[0] = setLayouts[1] = descriptorSetLayout;
var allocateInfo = new DescriptorSetAllocateInfo
{
StructureType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = descriptorPool,
DescriptorSetCount = 2,
SetLayouts = new IntPtr(setLayouts),
};
device.AllocateDescriptorSets(ref allocateInfo, descriptorSets);
var bufferInfo = new DescriptorBufferInfo
{
Buffer = uniformBuffer,
Range = Vulkan.WholeSize
};
var write = new WriteDescriptorSet
{
StructureType = StructureType.WriteDescriptorSet,
DescriptorCount = 1,
DestinationSet = descriptorSets[0],
DestinationBinding = 0,
DescriptorType = DescriptorType.UniformBuffer,
BufferInfo = new IntPtr(&bufferInfo)
};
var copy = new CopyDescriptorSet
{
StructureType = StructureType.CopyDescriptorSet,
DescriptorCount = 1,
SourceBinding = 0,
DestinationBinding = 0,
SourceSet = descriptorSets[0],
DestinationSet = descriptorSets[1]
};
device.UpdateDescriptorSets(1, &write, 0, null);
device.UpdateDescriptorSets(0, null, 1, ©);
// Post-present transition
var memoryBarrier = new ImageMemoryBarrier
{
StructureType = StructureType.ImageMemoryBarrier,
Image = backBuffers[currentBackBufferIndex],
SubresourceRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1),
OldLayout = ImageLayout.PresentSource,
NewLayout = ImageLayout.ColorAttachmentOptimal,
SourceAccessMask = AccessFlags.MemoryRead,
DestinationAccessMask = AccessFlags.ColorAttachmentWrite
};
commandBuffer.PipelineBarrier(PipelineStageFlags.TopOfPipe, PipelineStageFlags.TopOfPipe, DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
// Clear render target
var clearRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1);
commandBuffer.ClearColorImage(backBuffers[currentBackBufferIndex], ImageLayout.TransferDestinationOptimal, new RawColor4(0, 0, 0, 1), 1, &clearRange);
// Begin render pass
var renderPassBeginInfo = new RenderPassBeginInfo
{
StructureType = StructureType.RenderPassBeginInfo,
RenderPass = renderPass,
Framebuffer = framebuffers[currentBackBufferIndex],
RenderArea = new Rect2D(0, 0, (uint)form.ClientSize.Width, (uint)form.ClientSize.Height),
};
commandBuffer.BeginRenderPass(ref renderPassBeginInfo, SubpassContents.Inline);
// Bind pipeline
commandBuffer.BindPipeline(PipelineBindPoint.Graphics, pipeline);
// Bind descriptor sets
commandBuffer.BindDescriptorSets(PipelineBindPoint.Graphics, pipelineLayout, 0, 1, descriptorSets + 1, 0, null);
// Set viewport and scissor
var viewport = new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height);
commandBuffer.SetViewport(0, 1, &viewport);
var scissor = new Rect2D(0, 0, (uint)form.ClientSize.Width, (uint)form.ClientSize.Height);
commandBuffer.SetScissor(0, 1, &scissor);
// Bind vertex buffer
var vertexBufferCopy = vertexBuffer;
ulong offset = 0;
commandBuffer.BindVertexBuffers(0, 1, &vertexBufferCopy, &offset);
// Draw vertices
commandBuffer.Draw(3, 1, 0, 0);
// End render pass
commandBuffer.EndRenderPass();
// Pre-present transition
memoryBarrier = new ImageMemoryBarrier
{
StructureType = StructureType.ImageMemoryBarrier,
Image = backBuffers[currentBackBufferIndex],
SubresourceRange = new ImageSubresourceRange(ImageAspectFlags.Color, 0, 1, 0, 1),
OldLayout = ImageLayout.ColorAttachmentOptimal,
NewLayout = ImageLayout.PresentSource,
SourceAccessMask = AccessFlags.ColorAttachmentWrite,
DestinationAccessMask = AccessFlags.MemoryRead
};
commandBuffer.PipelineBarrier(PipelineStageFlags.AllCommands, PipelineStageFlags.BottomOfPipe, DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
}
internal static unsafe extern Result vkAllocateDescriptorSets(Device device, DescriptorSetAllocateInfo* allocateInfo, DescriptorSet* descriptorSets);
public unsafe void ChangeTargetImages(
Vector2D <uint> targetSize,
ReadOnlyMemory <Image> targetImages,
Format format,
ColorSpaceKHR colorSpace)
{
_commandAllocs = new Allocation[targetImages.Length];
_commandBuffers = new Buffer[targetImages.Length];
_commandBufferCapacities = new int[targetImages.Length];
_commandBufferCapacities.AsSpan().Fill(-1);
if (_descriptorPool.Handle != 0)
{
_vk.DestroyDescriptorPool(_device, _descriptorPool, null);
}
_targetSize = targetSize;
_targetImages = targetImages;
_targetImageViews = new ImageView[targetImages.Length];
var poolSizes = stackalloc DescriptorPoolSize[]
{
new DescriptorPoolSize(DescriptorType.StorageImage, (uint)targetImages.Length),
new DescriptorPoolSize(DescriptorType.StorageBuffer, (uint)targetImages.Length),
};
_vk.CreateDescriptorPool(_device,
new DescriptorPoolCreateInfo(maxSets: (uint)targetImages.Length, poolSizeCount: 2,
pPoolSizes: poolSizes), null, out _descriptorPool).ThrowCode();
Name(ObjectType.DescriptorPool, _descriptorPool.Handle, $"Target Descriptor Pool");
_targetDescriptorSets = new DescriptorSet[targetImages.Length];
var setLayouts = stackalloc DescriptorSetLayout[targetImages.Length];
new Span <DescriptorSetLayout>(setLayouts, targetImages.Length).Fill(_setLayout);
var info = new DescriptorSetAllocateInfo(descriptorPool: _descriptorPool,
descriptorSetCount: (uint)targetImages.Length, pSetLayouts: setLayouts);
_vk.AllocateDescriptorSets(_device, &info, _targetDescriptorSets.AsSpan()).ThrowCode();
var imageInfos = stackalloc DescriptorImageInfo[targetImages.Length];
Span <WriteDescriptorSet> writes = stackalloc WriteDescriptorSet[targetImages.Length];
for (int i = 0; i < targetImages.Length; i++)
{
Name(ObjectType.Image, _targetImages.Span[i].Handle, $"Target Image {i}");
// _vk.CreateImage(_device,
// new ImageCreateInfo(imageType: ImageType.ImageType2D, format: Format.R8G8B8A8Srgb,
// extent: new Extent3D(_targetSize.X, _targetSize.Y, 1), mipLevels: 1, arrayLayers: 1,
// samples: SampleCountFlags.SampleCount1Bit, tiling: ImageTiling.Optimal,
// initialLayout: ImageLayout.Undefined, usage: ImageUsageFlags.ImageUsageStorageBit,
// sharingMode: SharingMode.Exclusive, queueFamilyIndexCount: 0, pQueueFamilyIndices: null), null,
// out _ownImages[i]).ThrowCode();
_vk.CreateImageView(_device,
new ImageViewCreateInfo(image: _targetImages.Span[i], viewType: ImageViewType.ImageViewType2D,
format: format,
components: new ComponentMapping(ComponentSwizzle.Identity, ComponentSwizzle.Identity,
ComponentSwizzle.Identity, ComponentSwizzle.Identity),
subresourceRange: new ImageSubresourceRange(ImageAspectFlags.ImageAspectColorBit, 0, 1, 0, 1)),
null, out _targetImageViews[i]).ThrowCode();
Name(ObjectType.ImageView, _targetImageViews[i].Handle, $"Target Image View {i}");
imageInfos[i] = new DescriptorImageInfo(imageView: _targetImageViews[i], imageLayout: ImageLayout.General);
writes[i] = new WriteDescriptorSet(dstSet: _targetDescriptorSets[i], dstBinding: 0, dstArrayElement: 0,
descriptorCount: 1, descriptorType: DescriptorType.StorageImage, pImageInfo: (imageInfos + i));
Name(ObjectType.DescriptorSet, _targetDescriptorSets[i].Handle, $"Target Descriptor {i}");
}
_vk.UpdateDescriptorSets(_device, (uint)targetImages.Length, writes, 0, (CopyDescriptorSet *)null);
}
public unsafe void AllocateDescriptorSets(ref DescriptorSetAllocateInfo allocateInfo, DescriptorSet* descriptorSets)
{
fixed (DescriptorSetAllocateInfo* __allocateInfo__ = &allocateInfo)
{
vkAllocateDescriptorSets(this, __allocateInfo__, descriptorSets).CheckError();
}
}
void CreateDescriptorSet()
{
/*
* So we will allocate a descriptor set here.
* But we need to first create a descriptor pool to do that.
*/
/*
* Our descriptor pool can only allocate a single storage buffer.
*/
DescriptorPoolSize descriptorPoolSize = new DescriptorPoolSize()
{
Type = DescriptorType.StorageBuffer,// VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
DescriptorCount = 1
};
DescriptorPoolCreateInfo descriptorPoolCreateInfo = new DescriptorPoolCreateInfo()
{
MaxSets = 1, // we only need to allocate one descriptor set from the pool.
Flags = DescriptorPoolCreateFlags.FreeDescriptorSet,
PoolSizes = new[] { descriptorPoolSize }
};
// create descriptor pool.
descriptorPool = device.CreateDescriptorPool(descriptorPoolCreateInfo);
/*
* With the pool allocated, we can now allocate the descriptor set.
*/
DescriptorSetAllocateInfo descriptorSetAllocateInfo = new DescriptorSetAllocateInfo(1, descriptorSetLayout);
// allocate a single descriptor set.
// allocate descriptor set.
descriptorSet = descriptorPool.AllocateSets(descriptorSetAllocateInfo)[0];
/*
* Next, we need to connect our actual storage buffer with the descrptor.
* We use vkUpdateDescriptorSets() to update the descriptor set.
*/
// Specify the buffer to bind to the descriptor.
DescriptorBufferInfo descriptorBufferInfo = new DescriptorBufferInfo()
{
Buffer = buffer,
Offset = 0,
Range = bufferSize
};
WriteDescriptorSet writeDescriptorSet = new WriteDescriptorSet()
{
DstSet = descriptorSet, // write to this descriptor set.
DstBinding = 0, // write to the first, and only binding.
DstArrayElement = 0,
DescriptorCount = 1, // update a single descriptor.
DescriptorType = DescriptorType.StorageBuffer, // VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; // storage buffer.
BufferInfo = new[] { descriptorBufferInfo }
};
// perform the update of the descriptor set.
WriteDescriptorSet[] k = { writeDescriptorSet };
descriptorPool.UpdateSets(k);
}
