private unsafe Pipeline(PipelineSettings settings, VulkanRenderer renderer)
{
_renderer = renderer;
Device device = _renderer.Params.Device;
AllocationCallbacks *allocator = (AllocationCallbacks *)_renderer.Params.AllocationCallbacks.ToPointer();
Vk vk = _renderer.Vk;
PipelineShaderStageCreateInfo *shaderStages = stackalloc PipelineShaderStageCreateInfo[2]
{
_renderer.Shader.VertexShaderStage,
_renderer.Shader.FragmentShaderStage
};
PipelineVertexInputStateCreateInfo vertexInputState = VertexInputState(_bindingDescription, _attributeDescriptions);
PipelineInputAssemblyStateCreateInfo inputAssemblyState = InputAssemblyState(settings);
PipelineRasterizationStateCreateInfo rasterizationState = RasterizationState(settings);
PipelineMultisampleStateCreateInfo multisampleState = MultisampleState();
PipelineColorBlendAttachmentState colourBlendAttachmentState = ColorBlendAttachmentState(settings);
PipelineColorBlendStateCreateInfo colourBlendState = ColourBlendState(colourBlendAttachmentState);
PipelineViewportStateCreateInfo viewportState = ViewportState();
PipelineDynamicStateCreateInfo dynamicState = DynamicStates(DynamicState.Viewport, DynamicState.Scissor);
PipelineDepthStencilStateCreateInfo depthStencilState = DepthStencilState(settings);
GraphicsPipelineCreateInfo pipelineCreateInfo = new()
{
SType = StructureType.GraphicsPipelineCreateInfo,
StageCount = 2,
PStages = shaderStages,
PVertexInputState = &vertexInputState,
PInputAssemblyState = &inputAssemblyState,
PRasterizationState = &rasterizationState,
PMultisampleState = &multisampleState,
PColorBlendState = &colourBlendState,
PViewportState = &viewportState,
PDynamicState = &dynamicState,
PDepthStencilState = &depthStencilState,
PTessellationState = null,
Layout = _renderer.Shader.PipelineLayout,
RenderPass = _renderer.Params.RenderPass,
Subpass = _renderer.Params.SubpassIndex,
BasePipelineIndex = -1,
BasePipelineHandle = default
};
_renderer.AssertVulkan(vk.CreateGraphicsPipelines(device, default, 1, pipelineCreateInfo, allocator, out _handle));
private unsafe void Recreate()
{
if (Description.RootSignature == null)
{
return;
}
CreateRenderPass(Description);
CreatePipelineLayout(Description);
// Create shader stages
Dictionary <int, string> inputAttributeNames;
// Note: important to pin this so that stages[x].Name is valid during this whole function
void *defaultEntryPointData = Interop.Fixed(defaultEntryPoint);
var stages = CreateShaderStages(Description, out inputAttributeNames);
var inputAttributes = new VertexInputAttributeDescription[Description.InputElements.Length];
int inputAttributeCount = 0;
var inputBindings = new VertexInputBindingDescription[inputAttributes.Length];
int inputBindingCount = 0;
for (int inputElementIndex = 0; inputElementIndex < inputAttributes.Length; inputElementIndex++)
{
var inputElement = Description.InputElements[inputElementIndex];
var slotIndex = inputElement.InputSlot;
if (inputElement.InstanceDataStepRate > 1)
{
throw new NotImplementedException();
}
Format format;
int size;
bool isCompressed;
VulkanConvertExtensions.ConvertPixelFormat(inputElement.Format, out format, out size, out isCompressed);
var location = inputAttributeNames.FirstOrDefault(x => x.Value == inputElement.SemanticName && inputElement.SemanticIndex == 0 || x.Value == inputElement.SemanticName + inputElement.SemanticIndex);
if (location.Value != null)
{
inputAttributes[inputAttributeCount++] = new VertexInputAttributeDescription
{
Format = format,
Offset = (uint)inputElement.AlignedByteOffset,
Binding = (uint)inputElement.InputSlot,
Location = (uint)location.Key
};
}
inputBindings[slotIndex].Binding = (uint)slotIndex;
inputBindings[slotIndex].InputRate = inputElement.InputSlotClass == InputClassification.Vertex ? VertexInputRate.Vertex : VertexInputRate.Instance;
// TODO VULKAN: This is currently an argument to Draw() overloads.
if (inputBindings[slotIndex].Stride < inputElement.AlignedByteOffset + size)
{
inputBindings[slotIndex].Stride = (uint)(inputElement.AlignedByteOffset + size);
}
if (inputElement.InputSlot >= inputBindingCount)
{
inputBindingCount = inputElement.InputSlot + 1;
}
}
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = VulkanConvertExtensions.ConvertPrimitiveType(Description.PrimitiveType),
PrimitiveRestartEnable = VulkanConvertExtensions.ConvertPrimitiveRestart(Description.PrimitiveType),
};
// TODO VULKAN: Tessellation and multisampling
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1
};
var tessellationState = new PipelineTessellationStateCreateInfo();
var rasterizationState = CreateRasterizationState(Description.RasterizerState);
var depthStencilState = CreateDepthStencilState(Description);
var description = Description.BlendState;
var renderTargetCount = Description.Output.RenderTargetCount;
var colorBlendAttachments = new PipelineColorBlendAttachmentState[renderTargetCount];
var renderTargetBlendState = &description.RenderTarget0;
for (int i = 0; i < renderTargetCount; i++)
{
colorBlendAttachments[i] = new PipelineColorBlendAttachmentState
{
BlendEnable = renderTargetBlendState->BlendEnable,
AlphaBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->AlphaBlendFunction),
ColorBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->ColorBlendFunction),
DestinationAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaDestinationBlend),
DestinationColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorDestinationBlend),
SourceAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaSourceBlend),
SourceColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorSourceBlend),
ColorWriteMask = VulkanConvertExtensions.ConvertColorWriteChannels(renderTargetBlendState->ColorWriteChannels),
};
if (description.IndependentBlendEnable)
{
renderTargetBlendState++;
}
}
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
fixed(DynamicState *dynamicStatesPointer = &dynamicStates[0])
{
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)inputAttributeCount,
VertexAttributeDescriptions = inputAttributes.Length > 0 ? new IntPtr(Interop.Fixed(inputAttributes)) : IntPtr.Zero,
VertexBindingDescriptionCount = (uint)inputBindingCount,
VertexBindingDescriptions = inputBindings.Length > 0 ? new IntPtr(Interop.Fixed(inputBindings)) : IntPtr.Zero,
};
var colorBlendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = (uint)renderTargetCount,
Attachments = colorBlendAttachments.Length > 0 ? new IntPtr(Interop.Fixed(colorBlendAttachments)) : IntPtr.Zero,
};
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = new IntPtr(dynamicStatesPointer)
};
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
Layout = NativeLayout,
StageCount = (uint)stages.Length,
Stages = stages.Length > 0 ? new IntPtr(Interop.Fixed(stages)) : IntPtr.Zero,
//TessellationState = new IntPtr(&tessellationState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizationState),
MultisampleState = new IntPtr(&multisampleState),
DepthStencilState = new IntPtr(&depthStencilState),
ColorBlendState = new IntPtr(&colorBlendState),
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
RenderPass = NativeRenderPass,
Subpass = 0,
};
NativePipeline = GraphicsDevice.NativeDevice.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
}
// Cleanup shader modules
foreach (var stage in stages)
{
GraphicsDevice.NativeDevice.DestroyShaderModule(stage.Module);
}
}
private unsafe void Recreate()
{
errorDuringCreate = false;
if (Description.RootSignature == null)
{
return;
}
PipelineShaderStageCreateInfo[] stages;
// try to recover from a rare failure?
bool retry = false;
// it appears pipeline creation is just not thread safe :(
lock (PipeLock) {
Xenko.Shaders.Compiler.EffectCompilerCache.CompileSynchronization.Wait();
CreateRenderPass(Description);
CreatePipelineLayout(Description);
// Create shader stages
Dictionary <int, string> inputAttributeNames;
stages = CreateShaderStages(Description, out inputAttributeNames);
var inputAttributes = new VertexInputAttributeDescription[Description.InputElements.Length];
int inputAttributeCount = 0;
var inputBindings = new VertexInputBindingDescription[inputAttributes.Length];
int inputBindingCount = 0;
for (int inputElementIndex = 0; inputElementIndex < inputAttributes.Length; inputElementIndex++)
{
var inputElement = Description.InputElements[inputElementIndex];
var slotIndex = inputElement.InputSlot;
if (inputElement.InstanceDataStepRate > 1)
{
throw new NotImplementedException();
}
Format format;
int size;
bool isCompressed;
VulkanConvertExtensions.ConvertPixelFormat(inputElement.Format, out format, out size, out isCompressed);
var location = inputAttributeNames.FirstOrDefault(x => x.Value == inputElement.SemanticName && inputElement.SemanticIndex == 0 || x.Value == inputElement.SemanticName + inputElement.SemanticIndex);
if (location.Value != null)
{
inputAttributes[inputAttributeCount++] = new VertexInputAttributeDescription
{
Format = format,
Offset = (uint)inputElement.AlignedByteOffset,
Binding = (uint)inputElement.InputSlot,
Location = (uint)location.Key
};
}
inputBindings[slotIndex].Binding = (uint)slotIndex;
inputBindings[slotIndex].InputRate = inputElement.InputSlotClass == InputClassification.Vertex ? VertexInputRate.Vertex : VertexInputRate.Instance;
// TODO VULKAN: This is currently an argument to Draw() overloads.
if (inputBindings[slotIndex].Stride < inputElement.AlignedByteOffset + size)
{
inputBindings[slotIndex].Stride = (uint)(inputElement.AlignedByteOffset + size);
}
if (inputElement.InputSlot >= inputBindingCount)
{
inputBindingCount = inputElement.InputSlot + 1;
}
}
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = VulkanConvertExtensions.ConvertPrimitiveType(Description.PrimitiveType),
PrimitiveRestartEnable = true,
};
// TODO VULKAN: Tessellation and multisampling
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1
};
//var tessellationState = new PipelineTessellationStateCreateInfo();
var rasterizationState = CreateRasterizationState(Description.RasterizerState);
var depthStencilState = CreateDepthStencilState(Description);
var description = Description.BlendState;
var renderTargetCount = Description.Output.RenderTargetCount;
var colorBlendAttachments = new PipelineColorBlendAttachmentState[renderTargetCount];
var renderTargetBlendState = &description.RenderTarget0;
for (int i = 0; i < renderTargetCount; i++)
{
colorBlendAttachments[i] = new PipelineColorBlendAttachmentState
{
BlendEnable = renderTargetBlendState->BlendEnable,
AlphaBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->AlphaBlendFunction),
ColorBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->ColorBlendFunction),
DestinationAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaDestinationBlend),
DestinationColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorDestinationBlend),
SourceAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaSourceBlend),
SourceColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorSourceBlend),
ColorWriteMask = VulkanConvertExtensions.ConvertColorWriteChannels(renderTargetBlendState->ColorWriteChannels),
};
if (description.IndependentBlendEnable)
{
renderTargetBlendState++;
}
}
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
fixed(void *dynamicStatesPointer = dynamicStates.Length == 0?null : dynamicStates,
inputAttributesPointer = inputAttributes.Length == 0?null : inputAttributes,
inputBindingsPointer = inputBindings.Length == 0?null : inputBindings,
colorBlendAttachmentsPointer = colorBlendAttachments.Length == 0?null : colorBlendAttachments,
stagesPointer = stages.Length == 0?null : stages)
{
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)inputAttributeCount,
VertexAttributeDescriptions = (IntPtr)inputAttributesPointer,
VertexBindingDescriptionCount = (uint)inputBindingCount,
VertexBindingDescriptions = (IntPtr)inputBindingsPointer,
};
var colorBlendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = (uint)renderTargetCount,
Attachments = (IntPtr)colorBlendAttachmentsPointer,
};
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = (IntPtr)dynamicStatesPointer,
};
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
Layout = NativeLayout,
StageCount = (uint)stages.Length,
Stages = (IntPtr)stagesPointer,
//TessellationState = new IntPtr(&tessellationState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizationState),
MultisampleState = new IntPtr(&multisampleState),
DepthStencilState = new IntPtr(&depthStencilState),
ColorBlendState = new IntPtr(&colorBlendState),
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
RenderPass = NativeRenderPass,
Subpass = 0,
};
try {
lock (GraphicsDevice.QueueLock) {
NativePipeline = GraphicsDevice.NativeDevice.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
}
} catch (AccessViolationException ae) {
// this happens extremely rarely and might be recoverable by reattempting the recreate
retry = true;
} catch (Exception e) {
errorDuringCreate = true;
NativePipeline = Pipeline.Null;
}
}
}
// Cleanup shader modules
for (int i = 0; i < stages.Length; i++)
{
GraphicsDevice.NativeDevice.DestroyShaderModule(stages[i].Module);
}
if (retry)
{
Recreate();
}
}
private void CreatePipeline()
{
var dynamicStates = new [] { DynamicState.Viewport, DynamicState.Scissor };
var entryPointName = System.Text.Encoding.UTF8.GetBytes("main\0");
fixed (byte* entryPointNamePointer = &entryPointName[0])
fixed (DynamicState* dynamicStatesPointer = &dynamicStates[0])
fixed (VertexInputAttributeDescription* vertexAttibutesPointer = &vertexAttributes[0])
fixed (VertexInputBindingDescription* vertexBindingsPointer = &vertexBindings[0])
{
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = new IntPtr(dynamicStatesPointer)
};
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)vertexAttributes.Length,
VertexAttributeDescriptions = new IntPtr(vertexAttibutesPointer),
VertexBindingDescriptionCount = (uint)vertexBindings.Length,
VertexBindingDescriptions = new IntPtr(vertexBindingsPointer),
};
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = PrimitiveTopology.TriangleList
};
var rasterizerState = new PipelineRasterizationStateCreateInfo
{
StructureType = StructureType.PipelineRasterizationStateCreateInfo,
PolygonMode = PolygonMode.Fill,
CullMode = CullModeFlags.None,
FrontFace = FrontFace.Clockwise,
LineWidth = 1.0f,
};
var colorBlendAttachment = new PipelineColorBlendAttachmentState { ColorWriteMask = ColorComponentFlags.R | ColorComponentFlags.G | ColorComponentFlags.B | ColorComponentFlags.A };
var blendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = 1,
Attachments = new IntPtr(&colorBlendAttachment)
};
var depthStencilState = new PipelineDepthStencilStateCreateInfo
{
StructureType = StructureType.PipelineDepthStencilStateCreateInfo,
DepthTestEnable = false,
DepthWriteEnable = true,
DepthCompareOperation = CompareOperation.LessOrEqual,
Back = new StencilOperationState { CompareOperation = CompareOperation.Always },
Front = new StencilOperationState { CompareOperation = CompareOperation.Always }
};
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1,
};
var shaderStages = new[]
{
new PipelineShaderStageCreateInfo
{
StructureType = StructureType.PipelineShaderStageCreateInfo,
Name = new IntPtr(entryPointNamePointer),
Stage = ShaderStageFlags.Vertex,
Module = CreateVertexShader()
},
new PipelineShaderStageCreateInfo
{
StructureType = StructureType.PipelineShaderStageCreateInfo,
Name = new IntPtr(entryPointNamePointer),
Stage = ShaderStageFlags.Fragment,
Module = CreateFragmentShader()
}
};
fixed (PipelineShaderStageCreateInfo* shaderStagesPointer = &shaderStages[0])
{
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
Layout = pipelineLayout,
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizerState),
ColorBlendState = new IntPtr(&blendState),
DepthStencilState = new IntPtr(&depthStencilState),
MultisampleState = new IntPtr(&multisampleState),
StageCount = (uint)shaderStages.Length,
Stages = new IntPtr(shaderStagesPointer),
RenderPass = renderPass
};
pipeline = device.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
}
foreach (var shaderStage in shaderStages)
{
device.DestroyShaderModule(shaderStage.Module);
}
}
}
private void CreatePipeline()
{
var dynamicStates = new [] { DynamicState.Viewport, DynamicState.Scissor };
var entryPointName = System.Text.Encoding.UTF8.GetBytes("main\0");
fixed(byte *entryPointNamePointer = &entryPointName[0])
fixed(DynamicState * dynamicStatesPointer = &dynamicStates[0])
fixed(VertexInputAttributeDescription * vertexAttibutesPointer = &vertexAttributes[0])
fixed(VertexInputBindingDescription * vertexBindingsPointer = &vertexBindings[0])
{
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = new IntPtr(dynamicStatesPointer)
};
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)vertexAttributes.Length,
VertexAttributeDescriptions = new IntPtr(vertexAttibutesPointer),
VertexBindingDescriptionCount = (uint)vertexBindings.Length,
VertexBindingDescriptions = new IntPtr(vertexBindingsPointer),
};
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = PrimitiveTopology.TriangleList
};
var rasterizerState = new PipelineRasterizationStateCreateInfo
{
StructureType = StructureType.PipelineRasterizationStateCreateInfo,
PolygonMode = PolygonMode.Fill,
CullMode = CullModeFlags.None,
FrontFace = FrontFace.Clockwise,
LineWidth = 1.0f,
};
var colorBlendAttachment = new PipelineColorBlendAttachmentState {
ColorWriteMask = ColorComponentFlags.R | ColorComponentFlags.G | ColorComponentFlags.B | ColorComponentFlags.A
};
var blendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = 1,
Attachments = new IntPtr(&colorBlendAttachment)
};
var depthStencilState = new PipelineDepthStencilStateCreateInfo
{
StructureType = StructureType.PipelineDepthStencilStateCreateInfo,
DepthTestEnable = false,
DepthWriteEnable = true,
DepthCompareOperation = CompareOperation.LessOrEqual,
Back = new StencilOperationState {
CompareOperation = CompareOperation.Always
},
Front = new StencilOperationState {
CompareOperation = CompareOperation.Always
}
};
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1,
};
var shaderStages = new[]
{
new PipelineShaderStageCreateInfo
{
StructureType = StructureType.PipelineShaderStageCreateInfo,
Name = new IntPtr(entryPointNamePointer),
Stage = ShaderStageFlags.Vertex,
Module = CreateVertexShader()
},
new PipelineShaderStageCreateInfo
{
StructureType = StructureType.PipelineShaderStageCreateInfo,
Name = new IntPtr(entryPointNamePointer),
Stage = ShaderStageFlags.Fragment,
Module = CreateFragmentShader()
}
};
fixed(PipelineShaderStageCreateInfo *shaderStagesPointer = &shaderStages[0])
{
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
Layout = pipelineLayout,
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizerState),
ColorBlendState = new IntPtr(&blendState),
DepthStencilState = new IntPtr(&depthStencilState),
MultisampleState = new IntPtr(&multisampleState),
StageCount = (uint)shaderStages.Length,
Stages = new IntPtr(shaderStagesPointer),
RenderPass = renderPass
};
pipeline = device.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
}
foreach (var shaderStage in shaderStages)
{
device.DestroyShaderModule(shaderStage.Module);
}
}
}
public void CreateGraphicsPipeline()
{
var attachment = new AttachmentDescription
{
Samples = SampleCounts.Count1,
Format = Format.B8G8R8A8UNorm,
InitialLayout = ImageLayout.Undefined,
FinalLayout = ImageLayout.PresentSrcKhr,
LoadOp = AttachmentLoadOp.Clear,
StoreOp = AttachmentStoreOp.Store,
StencilLoadOp = AttachmentLoadOp.DontCare,
StencilStoreOp = AttachmentStoreOp.DontCare
};
var subpass = new SubpassDescription(new[] { new AttachmentReference(0, ImageLayout.ColorAttachmentOptimal) });
var createInfo = new RenderPassCreateInfo(new[] { subpass }, new[] { attachment });
using (PipelineCache cache = Device.CreatePipelineCache())
using (RenderPass renderPass = Device.CreateRenderPass(createInfo))
using (PipelineLayout layout = Device.CreatePipelineLayout())
using (ShaderModule vertexShader = Device.CreateShaderModule(new ShaderModuleCreateInfo(ReadAllBytes("Shader.vert.spv"))))
using (ShaderModule fragmentShader = Device.CreateShaderModule(new ShaderModuleCreateInfo(ReadAllBytes("Shader.frag.spv"))))
{
var shaderStageCreateInfos = new[]
{
new PipelineShaderStageCreateInfo(ShaderStages.Vertex, vertexShader, "main"),
new PipelineShaderStageCreateInfo(ShaderStages.Fragment, fragmentShader, "main")
};
var vertexInputStateCreateInfo = new PipelineVertexInputStateCreateInfo();
var inputAssemblyStateCreateInfo = new PipelineInputAssemblyStateCreateInfo(PrimitiveTopology.TriangleList);
var viewportStateCreateInfo = new PipelineViewportStateCreateInfo(
new Viewport(0, 0, 32, 32),
new Rect2D(0, 0, 32, 32));
var rasterizationStateCreateInfo = new PipelineRasterizationStateCreateInfo
{
PolygonMode = PolygonMode.Fill,
CullMode = CullModes.Back,
FrontFace = FrontFace.CounterClockwise,
LineWidth = 1.0f
};
var tessellationStateCreateInfo = new PipelineTessellationStateCreateInfo(4);
var multisampleStateCreateInfo = new PipelineMultisampleStateCreateInfo
{
RasterizationSamples = SampleCounts.Count1,
MinSampleShading = 1.0f
};
var colorBlendAttachmentState = new PipelineColorBlendAttachmentState
{
SrcColorBlendFactor = BlendFactor.One,
DstColorBlendFactor = BlendFactor.Zero,
ColorBlendOp = BlendOp.Add,
SrcAlphaBlendFactor = BlendFactor.One,
DstAlphaBlendFactor = BlendFactor.Zero,
AlphaBlendOp = BlendOp.Add,
ColorWriteMask = ColorComponents.All
};
var depthStencilStateCreateInfo = new PipelineDepthStencilStateCreateInfo();
var colorBlendStateCreateInfo = new PipelineColorBlendStateCreateInfo(
new[] { colorBlendAttachmentState });
var dynamicStateCreateInfo = new PipelineDynamicStateCreateInfo(DynamicState.LineWidth);
var pipelineCreateInfo = new GraphicsPipelineCreateInfo(
layout, renderPass, 0,
shaderStageCreateInfos,
inputAssemblyStateCreateInfo,
vertexInputStateCreateInfo,
rasterizationStateCreateInfo,
tessellationStateCreateInfo,
viewportStateCreateInfo,
multisampleStateCreateInfo,
depthStencilStateCreateInfo,
colorBlendStateCreateInfo,
dynamicStateCreateInfo);
using (Device.CreateGraphicsPipelines(new[] { pipelineCreateInfo })[0]) { }
using (Device.CreateGraphicsPipelines(new[] { pipelineCreateInfo }, cache)[0]) { }
using (Device.CreateGraphicsPipelines(new[] { pipelineCreateInfo }, allocator: CustomAllocator)[0]) { }
using (Device.CreateGraphicsPipelines(new[] { pipelineCreateInfo }, cache, CustomAllocator)[0]) { }
using (Device.CreateGraphicsPipeline(pipelineCreateInfo)) { }
using (Device.CreateGraphicsPipeline(pipelineCreateInfo, allocator: CustomAllocator)) { }
using (Device.CreateGraphicsPipeline(pipelineCreateInfo, cache)) { }
using (Device.CreateGraphicsPipeline(pipelineCreateInfo, cache, CustomAllocator)) { }
}
}
internal static Pipeline CreatePipeline(
Device logicalDevice,
RenderPass renderpass,
PipelineLayout layout,
ShaderModule vertModule,
ShaderModule fragModule,
SpecializationContainer specializationContainer,
bool depthClamp,
bool depthBias,
ReadOnlySpan <DeviceTexture> targets,
IInternalRenderObject renderObject)
{
if (logicalDevice == null)
{
throw new ArgumentNullException(nameof(logicalDevice));
}
if (renderpass == null)
{
throw new ArgumentNullException(nameof(renderpass));
}
var shaderStages = new []
{
new PipelineShaderStageCreateInfo(
stage: ShaderStages.Vertex, module: vertModule, name: "main",
specializationInfo: specializationContainer?.GetInfo()),
new PipelineShaderStageCreateInfo(
stage: ShaderStages.Fragment,
module: fragModule, name: "main",
specializationInfo: specializationContainer?.GetInfo())
};
var depthTest = new PipelineDepthStencilStateCreateInfo {
DepthTestEnable = true,
DepthWriteEnable = true,
DepthCompareOp = CompareOp.LessOrEqual,
DepthBoundsTestEnable = false,
StencilTestEnable = false
};
var rasterizer = new PipelineRasterizationStateCreateInfo(
depthClampEnable: depthClamp,
rasterizerDiscardEnable: false,
polygonMode: PolygonMode.Fill,
cullMode: CullModes.Back,
frontFace: renderObject.GetFrontFace(),
depthBiasEnable: depthBias,
depthBiasConstantFactor: .1f,
depthBiasSlopeFactor: 1.75f,
lineWidth: 1f
);
//Gather all the color targets and setup a blend-state for them
ResizeArray <PipelineColorBlendAttachmentState> blendAttachments =
new ResizeArray <PipelineColorBlendAttachmentState>();
for (int i = 0; i < targets.Length; i++)
{
if (!targets[i].DepthTexture)
{
blendAttachments.Add(new PipelineColorBlendAttachmentState(
colorWriteMask: ColorComponents.All, blendEnable: false));
}
}
var blending = new PipelineColorBlendStateCreateInfo(
attachments: blendAttachments.ToArray(),
logicOpEnable: false
);
var multisampleState = new PipelineMultisampleStateCreateInfo(
rasterizationSamples: SampleCounts.Count1,
sampleShadingEnable: false
);
//Pass the viewport and scissor-rect as dynamic so we are not tied to swapchain size
//the advantage is this is that we don't need to recreate the pipeline on swapchain
//resize
var dynamicState = new PipelineDynamicStateCreateInfo(
DynamicState.Viewport,
DynamicState.Scissor
);
return(logicalDevice.CreateGraphicsPipeline(new GraphicsPipelineCreateInfo(
layout: layout,
renderPass: renderpass,
subpass: 0,
stages: shaderStages,
inputAssemblyState: renderObject.GetInputAssemblyStateInfo(),
vertexInputState: renderObject.GetVertexInputState(),
rasterizationState: rasterizer,
tessellationState: null,
//Pass empty viewport and scissor-rect as we set them dynamically
viewportState: new PipelineViewportStateCreateInfo(new Viewport(), new Rect2D()),
multisampleState: multisampleState,
depthStencilState: depthTest,
colorBlendState: blending,
dynamicState: dynamicState,
flags: PipelineCreateFlags.None
)));
}
private Pipeline CreateGraphicsPipeline()
{
using var pName = SilkMarshal.StringToMemory("main");
var shaderStages = stackalloc PipelineShaderStageCreateInfo[2]
{
new PipelineShaderStageCreateInfo
{
SType = StructureType.PipelineShaderStageCreateInfo,
Stage = ShaderStageFlags.ShaderStageVertexBit,
Module = this.VertexShader,
PName = (byte *)pName
},
new PipelineShaderStageCreateInfo
{
SType = StructureType.PipelineShaderStageCreateInfo,
Stage = ShaderStageFlags.ShaderStageFragmentBit,
Module = this.FragmentShader,
PName = (byte *)pName
}
};
var dynamicStates = stackalloc DynamicState[2] {
DynamicState.Viewport, DynamicState.Scissor
};
PipelineDynamicStateCreateInfo dynamicState = new PipelineDynamicStateCreateInfo
{
SType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = 2,
PDynamicStates = dynamicStates
};
var vertexBindings = stackalloc VertexInputBindingDescription[2]
{
new VertexInputBindingDescription(0, (uint)sizeof(PositionColorVertex), VertexInputRate.Vertex),
new VertexInputBindingDescription(1, (uint)sizeof(InstanceData), VertexInputRate.Instance)
};
var vertexAttributes = stackalloc VertexInputAttributeDescription[3]
{
new VertexInputAttributeDescription(0, 0, Format.R32G32B32Sfloat, 0),
new VertexInputAttributeDescription(1, 0, Format.R32G32B32Sfloat, (uint)sizeof(System.Numerics.Vector3)),
new VertexInputAttributeDescription(2, 1, Format.R32G32B32Sfloat, 0)
};
var vertexInputInfo = new PipelineVertexInputStateCreateInfo
{
SType = StructureType.PipelineVertexInputStateCreateInfo,
VertexBindingDescriptionCount = 2,
PVertexBindingDescriptions = vertexBindings,
VertexAttributeDescriptionCount = 3,
PVertexAttributeDescriptions = vertexAttributes
};
var inputAssembly = new PipelineInputAssemblyStateCreateInfo
{
SType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = PrimitiveTopology.TriangleList,
PrimitiveRestartEnable = false
};
//Marked as dynamic state, will be specified in the command buffer
var viewportState = new PipelineViewportStateCreateInfo
{
SType = StructureType.PipelineViewportStateCreateInfo,
ViewportCount = 1,
ScissorCount = 1,
};
var rasterizer = new PipelineRasterizationStateCreateInfo
{
SType = StructureType.PipelineRasterizationStateCreateInfo,
DepthClampEnable = Vk.False,
RasterizerDiscardEnable = Vk.False,
PolygonMode = PolygonMode.Fill,
LineWidth = 1.0f,
CullMode = CullModeFlags.CullModeNone,
FrontFace = FrontFace.Clockwise,
DepthBiasEnable = Vk.False
};
var multisampling = new PipelineMultisampleStateCreateInfo
{
SType = StructureType.PipelineMultisampleStateCreateInfo,
SampleShadingEnable = false,
RasterizationSamples = SampleCountFlags.SampleCount1Bit
};
var colorBlendAttachment = new PipelineColorBlendAttachmentState
{
ColorWriteMask = ColorComponentFlags.ColorComponentRBit |
ColorComponentFlags.ColorComponentGBit |
ColorComponentFlags.ColorComponentBBit |
ColorComponentFlags.ColorComponentABit,
BlendEnable = Vk.False
};
var colorBlending = new PipelineColorBlendStateCreateInfo
{
SType = StructureType.PipelineColorBlendStateCreateInfo,
LogicOpEnable = Vk.False,
LogicOp = LogicOp.Copy,
AttachmentCount = 1,
PAttachments = &colorBlendAttachment
};
colorBlending.BlendConstants[0] = 0.0f;
colorBlending.BlendConstants[1] = 0.0f;
colorBlending.BlendConstants[2] = 0.0f;
colorBlending.BlendConstants[3] = 0.0f;
var depthState = new PipelineDepthStencilStateCreateInfo
{
SType = StructureType.PipelineDepthStencilStateCreateInfo,
DepthTestEnable = true,
DepthWriteEnable = true,
DepthCompareOp = CompareOp.LessOrEqual,
DepthBoundsTestEnable = false,
MinDepthBounds = 0,
MaxDepthBounds = 0,
StencilTestEnable = false,
Back =
{
FailOp = StencilOp.Keep,
PassOp = StencilOp.Keep,
CompareOp = CompareOp.Always,
CompareMask = 0,
Reference = 0,
DepthFailOp = StencilOp.Keep,
WriteMask = 0
}
};
depthState.Front = depthState.Back;
var pipelineInfo = new GraphicsPipelineCreateInfo
{
SType = StructureType.GraphicsPipelineCreateInfo,
StageCount = 2,
PStages = shaderStages,
PDynamicState = &dynamicState,
PDepthStencilState = &depthState,
PVertexInputState = &vertexInputInfo,
PInputAssemblyState = &inputAssembly,
PViewportState = &viewportState,
PRasterizationState = &rasterizer,
PMultisampleState = &multisampling,
PColorBlendState = &colorBlending,
Layout = this.GraphicsPipelineLayout,
RenderPass = RenderPass,
Subpass = 0,
BasePipelineHandle = default
};
Pipeline pipeline;
var res = VkApi.CreateGraphicsPipelines(Device, default, 1, &pipelineInfo, null, &pipeline);
//[HandleProcessCorruptedStateExceptionsAttribute, SecurityCriticalAttribute]
private unsafe void Recreate()
{
errorDuringCreate = false;
if (Description.RootSignature == null)
{
return;
}
PipelineShaderStageCreateInfo[] stages;
// create render pass
bool hasDepthStencilAttachment = Description.Output.DepthStencilFormat != PixelFormat.None;
var renderTargetCount = Description.Output.RenderTargetCount;
var attachmentCount = renderTargetCount;
if (hasDepthStencilAttachment)
{
attachmentCount++;
}
var attachments = new AttachmentDescription[attachmentCount];
var colorAttachmentReferences = new AttachmentReference[renderTargetCount];
fixed(PixelFormat *renderTargetFormat = &Description.Output.RenderTargetFormat0)
fixed(BlendStateRenderTargetDescription * blendDescription = &Description.BlendState.RenderTarget0)
{
for (int i = 0; i < renderTargetCount; i++)
{
var currentBlendDesc = Description.BlendState.IndependentBlendEnable ? (blendDescription + i) : blendDescription;
attachments[i] = new AttachmentDescription
{
Format = VulkanConvertExtensions.ConvertPixelFormat(*(renderTargetFormat + i)),
Samples = SampleCountFlags.Sample1,
LoadOperation = currentBlendDesc->BlendEnable ? AttachmentLoadOperation.Load : AttachmentLoadOperation.DontCare, // TODO VULKAN: Only if any destination blend?
StoreOperation = AttachmentStoreOperation.Store,
StencilLoadOperation = AttachmentLoadOperation.DontCare,
StencilStoreOperation = AttachmentStoreOperation.DontCare,
InitialLayout = ImageLayout.ColorAttachmentOptimal,
FinalLayout = ImageLayout.ColorAttachmentOptimal,
};
colorAttachmentReferences[i] = new AttachmentReference
{
Attachment = (uint)i,
Layout = ImageLayout.ColorAttachmentOptimal,
};
}
}
if (hasDepthStencilAttachment)
{
attachments[attachmentCount - 1] = new AttachmentDescription
{
Format = Texture.GetFallbackDepthStencilFormat(GraphicsDevice, VulkanConvertExtensions.ConvertPixelFormat(Description.Output.DepthStencilFormat)),
Samples = SampleCountFlags.Sample1,
LoadOperation = AttachmentLoadOperation.Load, // TODO VULKAN: Only if depth read enabled?
StoreOperation = AttachmentStoreOperation.Store, // TODO VULKAN: Only if depth write enabled?
StencilLoadOperation = AttachmentLoadOperation.DontCare, // TODO VULKAN: Handle stencil
StencilStoreOperation = AttachmentStoreOperation.DontCare,
InitialLayout = ImageLayout.DepthStencilAttachmentOptimal,
FinalLayout = ImageLayout.DepthStencilAttachmentOptimal,
};
}
var depthAttachmentReference = new AttachmentReference
{
Attachment = (uint)attachments.Length - 1,
Layout = ImageLayout.DepthStencilAttachmentOptimal,
};
var subpass = new SubpassDescription
{
PipelineBindPoint = PipelineBindPoint.Graphics,
ColorAttachmentCount = (uint)renderTargetCount,
ColorAttachments = colorAttachmentReferences.Length > 0 ? new IntPtr(Interop.Fixed(colorAttachmentReferences)) : IntPtr.Zero,
DepthStencilAttachment = hasDepthStencilAttachment ? new IntPtr(&depthAttachmentReference) : IntPtr.Zero,
};
var renderPassCreateInfo = new RenderPassCreateInfo
{
StructureType = StructureType.RenderPassCreateInfo,
AttachmentCount = (uint)attachmentCount,
Attachments = attachments.Length > 0 ? new IntPtr(Interop.Fixed(attachments)) : IntPtr.Zero,
SubpassCount = 1,
Subpasses = new IntPtr(&subpass)
};
// create pipeline layout
// Remap descriptor set indices to those in the shader. This ordering generated by the ShaderCompiler
var resourceGroups = Description.EffectBytecode.Reflection.ResourceBindings.Select(x => x.ResourceGroup ?? "Globals").Distinct().ToList();
ResourceGroupCount = resourceGroups.Count;
var layouts = Description.RootSignature.EffectDescriptorSetReflection.Layouts;
// Get binding indices used by the shader
var destinationBindings = Description.EffectBytecode.Stages
.SelectMany(x => BinarySerialization.Read <ShaderInputBytecode>(x.Data).ResourceBindings)
.GroupBy(x => x.Key, x => x.Value)
.ToDictionary(x => x.Key, x => x.First());
var maxBindingIndex = destinationBindings.Max(x => x.Value);
var destinationEntries = new DescriptorSetLayoutBuilder.Entry[maxBindingIndex + 1];
DescriptorBindingMapping = new List <DescriptorSetInfo>();
for (int i = 0; i < resourceGroups.Count; i++)
{
var resourceGroupName = resourceGroups[i] == "Globals" ? Description.RootSignature.EffectDescriptorSetReflection.DefaultSetSlot : resourceGroups[i];
var layoutIndex = resourceGroups[i] == null ? 0 : layouts.FindIndex(x => x.Name == resourceGroupName);
// Check if the resource group is used by the shader
if (layoutIndex == -1)
{
continue;
}
var sourceEntries = layouts[layoutIndex].Layout.Entries;
for (int sourceBinding = 0; sourceBinding < sourceEntries.Count; sourceBinding++)
{
var sourceEntry = sourceEntries[sourceBinding];
int destinationBinding;
if (destinationBindings.TryGetValue(sourceEntry.Key.Name, out destinationBinding))
{
destinationEntries[destinationBinding] = sourceEntry;
// No need to umpdate immutable samplers
if (sourceEntry.Class == EffectParameterClass.Sampler && sourceEntry.ImmutableSampler != null)
{
continue;
}
DescriptorBindingMapping.Add(new DescriptorSetInfo
{
SourceSet = layoutIndex,
SourceBinding = sourceBinding,
DestinationBinding = destinationBinding,
DescriptorType = VulkanConvertExtensions.ConvertDescriptorType(sourceEntry.Class, sourceEntry.Type)
});
}
}
}
// Create default sampler, used by texture and buffer loads
destinationEntries[0] = new DescriptorSetLayoutBuilder.Entry
{
Class = EffectParameterClass.Sampler,
Type = EffectParameterType.Sampler,
ImmutableSampler = GraphicsDevice.SamplerStates.PointWrap,
ArraySize = 1,
};
// Create descriptor set layout
NativeDescriptorSetLayout = DescriptorSetLayout.CreateNativeDescriptorSetLayout(GraphicsDevice, destinationEntries, out DescriptorTypeCounts);
// Create pipeline layout
var nativeDescriptorSetLayout = NativeDescriptorSetLayout;
var pipelineLayoutCreateInfo = new PipelineLayoutCreateInfo
{
StructureType = StructureType.PipelineLayoutCreateInfo,
SetLayoutCount = 1,
SetLayouts = new IntPtr(&nativeDescriptorSetLayout)
};
// Create shader stages
Dictionary <int, string> inputAttributeNames;
// Note: important to pin this so that stages[x].Name is valid during this whole function
void *defaultEntryPointData = Interop.Fixed(defaultEntryPoint);
stages = CreateShaderStages(Description, out inputAttributeNames);
var inputAttributes = new VertexInputAttributeDescription[Description.InputElements.Length];
int inputAttributeCount = 0;
var inputBindings = new VertexInputBindingDescription[inputAttributes.Length];
int inputBindingCount = 0;
for (int inputElementIndex = 0; inputElementIndex < inputAttributes.Length; inputElementIndex++)
{
var inputElement = Description.InputElements[inputElementIndex];
var slotIndex = inputElement.InputSlot;
if (inputElement.InstanceDataStepRate > 1)
{
throw new NotImplementedException();
}
Format format;
int size;
bool isCompressed;
VulkanConvertExtensions.ConvertPixelFormat(inputElement.Format, out format, out size, out isCompressed);
var location = inputAttributeNames.FirstOrDefault(x => x.Value == inputElement.SemanticName && inputElement.SemanticIndex == 0 || x.Value == inputElement.SemanticName + inputElement.SemanticIndex);
if (location.Value != null)
{
inputAttributes[inputAttributeCount++] = new VertexInputAttributeDescription
{
Format = format,
Offset = (uint)inputElement.AlignedByteOffset,
Binding = (uint)inputElement.InputSlot,
Location = (uint)location.Key
};
}
inputBindings[slotIndex].Binding = (uint)slotIndex;
inputBindings[slotIndex].InputRate = inputElement.InputSlotClass == InputClassification.Vertex ? VertexInputRate.Vertex : VertexInputRate.Instance;
// TODO VULKAN: This is currently an argument to Draw() overloads.
if (inputBindings[slotIndex].Stride < inputElement.AlignedByteOffset + size)
{
inputBindings[slotIndex].Stride = (uint)(inputElement.AlignedByteOffset + size);
}
if (inputElement.InputSlot >= inputBindingCount)
{
inputBindingCount = inputElement.InputSlot + 1;
}
}
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = VulkanConvertExtensions.ConvertPrimitiveType(Description.PrimitiveType),
PrimitiveRestartEnable = VulkanConvertExtensions.ConvertPrimitiveRestart(Description.PrimitiveType),
};
// TODO VULKAN: Tessellation and multisampling
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1
};
//var tessellationState = new PipelineTessellationStateCreateInfo();
var rasterizationState = new PipelineRasterizationStateCreateInfo
{
StructureType = StructureType.PipelineRasterizationStateCreateInfo,
CullMode = VulkanConvertExtensions.ConvertCullMode(Description.RasterizerState.CullMode),
FrontFace = Description.RasterizerState.FrontFaceCounterClockwise ? FrontFace.CounterClockwise : FrontFace.Clockwise,
PolygonMode = VulkanConvertExtensions.ConvertFillMode(Description.RasterizerState.FillMode),
DepthBiasEnable = true, // TODO VULKAN
DepthBiasConstantFactor = Description.RasterizerState.DepthBias,
DepthBiasSlopeFactor = Description.RasterizerState.SlopeScaleDepthBias,
DepthBiasClamp = Description.RasterizerState.DepthBiasClamp,
LineWidth = 1.0f,
DepthClampEnable = !Description.RasterizerState.DepthClipEnable,
RasterizerDiscardEnable = false,
};
var depthStencilState = new PipelineDepthStencilStateCreateInfo
{
StructureType = StructureType.PipelineDepthStencilStateCreateInfo,
DepthTestEnable = Description.DepthStencilState.DepthBufferEnable,
StencilTestEnable = Description.DepthStencilState.StencilEnable,
DepthWriteEnable = Description.DepthStencilState.DepthBufferWriteEnable,
MinDepthBounds = 0.0f,
MaxDepthBounds = 1.0f,
DepthCompareOperation = VulkanConvertExtensions.ConvertComparisonFunction(Description.DepthStencilState.DepthBufferFunction),
Front = new StencilOperationState
{
CompareOperation = VulkanConvertExtensions.ConvertComparisonFunction(Description.DepthStencilState.FrontFace.StencilFunction),
DepthFailOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.FrontFace.StencilDepthBufferFail),
FailOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.FrontFace.StencilFail),
PassOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.FrontFace.StencilPass),
CompareMask = Description.DepthStencilState.StencilMask,
WriteMask = Description.DepthStencilState.StencilWriteMask
},
Back = new StencilOperationState
{
CompareOperation = VulkanConvertExtensions.ConvertComparisonFunction(Description.DepthStencilState.BackFace.StencilFunction),
DepthFailOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.BackFace.StencilDepthBufferFail),
FailOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.BackFace.StencilFail),
PassOperation = VulkanConvertExtensions.ConvertStencilOperation(Description.DepthStencilState.BackFace.StencilPass),
CompareMask = Description.DepthStencilState.StencilMask,
WriteMask = Description.DepthStencilState.StencilWriteMask
}
};
var description = Description.BlendState;
var colorBlendAttachments = new PipelineColorBlendAttachmentState[renderTargetCount];
var renderTargetBlendState = &description.RenderTarget0;
for (int i = 0; i < renderTargetCount; i++)
{
colorBlendAttachments[i] = new PipelineColorBlendAttachmentState
{
BlendEnable = renderTargetBlendState->BlendEnable,
AlphaBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->AlphaBlendFunction),
ColorBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->ColorBlendFunction),
DestinationAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaDestinationBlend),
DestinationColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorDestinationBlend),
SourceAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaSourceBlend),
SourceColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorSourceBlend),
ColorWriteMask = VulkanConvertExtensions.ConvertColorWriteChannels(renderTargetBlendState->ColorWriteChannels),
};
if (description.IndependentBlendEnable)
{
renderTargetBlendState++;
}
}
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
fixed(void *dynamicStatesPointer = dynamicStates.Length == 0?null : dynamicStates,
inputAttributesPointer = inputAttributes.Length == 0?null : inputAttributes,
inputBindingsPointer = inputBindings.Length == 0?null : inputBindings,
colorBlendAttachmentsPointer = colorBlendAttachments.Length == 0?null : colorBlendAttachments,
stagesPointer = stages.Length == 0?null : stages)
{
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)inputAttributeCount,
VertexAttributeDescriptions = (IntPtr)inputAttributesPointer,
VertexBindingDescriptionCount = (uint)inputBindingCount,
VertexBindingDescriptions = (IntPtr)inputBindingsPointer,
};
var colorBlendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = (uint)renderTargetCount,
Attachments = (IntPtr)colorBlendAttachmentsPointer,
};
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = (IntPtr)dynamicStatesPointer,
};
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
StageCount = (uint)stages.Length,
Stages = (IntPtr)stagesPointer,
//TessellationState = new IntPtr(&tessellationState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizationState),
MultisampleState = new IntPtr(&multisampleState),
DepthStencilState = new IntPtr(&depthStencilState),
ColorBlendState = new IntPtr(&colorBlendState),
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
Subpass = 0,
};
using (GraphicsDevice.QueueLock.ReadLock())
{
NativeRenderPass = GraphicsDevice.NativeDevice.CreateRenderPass(ref renderPassCreateInfo);
NativeLayout = GraphicsDevice.NativeDevice.CreatePipelineLayout(ref pipelineLayoutCreateInfo);
createInfo.Layout = NativeLayout;
createInfo.RenderPass = NativeRenderPass;
try {
NativePipeline = GraphicsDevice.NativeDevice.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
} catch (Exception e) {
errorDuringCreate = true;
NativePipeline = Pipeline.Null;
}
}
}
// Cleanup shader modules
for (int i = 0; i < stages.Length; i++)
{
GraphicsDevice.NativeDevice.DestroyShaderModule(stages[i].Module);
}
}
private unsafe void Recreate()
{
if (Description.RootSignature == null)
return;
CreateRenderPass(Description);
CreatePipelineLayout(Description);
// Create shader stages
Dictionary<int, string> inputAttributeNames;
var stages = CreateShaderStages(Description, out inputAttributeNames);
var inputAttributes = new VertexInputAttributeDescription[Description.InputElements.Length];
int inputAttributeCount = 0;
var inputBindings = new VertexInputBindingDescription[inputAttributes.Length];
int inputBindingCount = 0;
for (int inputElementIndex = 0; inputElementIndex < inputAttributes.Length; inputElementIndex++)
{
var inputElement = Description.InputElements[inputElementIndex];
var slotIndex = inputElement.InputSlot;
if (inputElement.InstanceDataStepRate > 1)
{
throw new NotImplementedException();
}
Format format;
int size;
bool isCompressed;
VulkanConvertExtensions.ConvertPixelFormat(inputElement.Format, out format, out size, out isCompressed);
var location = inputAttributeNames.FirstOrDefault(x => x.Value == inputElement.SemanticName && inputElement.SemanticIndex == 0 || x.Value == inputElement.SemanticName + inputElement.SemanticIndex);
if (location.Value != null)
{
inputAttributes[inputAttributeCount++] = new VertexInputAttributeDescription
{
Format = format,
Offset = (uint)inputElement.AlignedByteOffset,
Binding = (uint)inputElement.InputSlot,
Location = (uint)location.Key
};
}
inputBindings[slotIndex].Binding = (uint)slotIndex;
inputBindings[slotIndex].InputRate = inputElement.InputSlotClass == InputClassification.Vertex ? VertexInputRate.Vertex : VertexInputRate.Instance;
// TODO VULKAN: This is currently an argument to Draw() overloads.
if (inputBindings[slotIndex].Stride < inputElement.AlignedByteOffset + size)
inputBindings[slotIndex].Stride = (uint)(inputElement.AlignedByteOffset + size);
if (inputElement.InputSlot >= inputBindingCount)
inputBindingCount = inputElement.InputSlot + 1;
}
var inputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
StructureType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = VulkanConvertExtensions.ConvertPrimitiveType(Description.PrimitiveType),
PrimitiveRestartEnable = true,
};
// TODO VULKAN: Tessellation and multisampling
var multisampleState = new PipelineMultisampleStateCreateInfo
{
StructureType = StructureType.PipelineMultisampleStateCreateInfo,
RasterizationSamples = SampleCountFlags.Sample1
};
var tessellationState = new PipelineTessellationStateCreateInfo();
var rasterizationState = CreateRasterizationState(Description.RasterizerState);
var depthStencilState = CreateDepthStencilState(Description);
var description = Description.BlendState;
var renderTargetCount = Description.Output.RenderTargetCount;
var colorBlendAttachments = new PipelineColorBlendAttachmentState[renderTargetCount];
var renderTargetBlendState = &description.RenderTarget0;
for (int i = 0; i < renderTargetCount; i++)
{
colorBlendAttachments[i] = new PipelineColorBlendAttachmentState
{
BlendEnable = renderTargetBlendState->BlendEnable,
AlphaBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->AlphaBlendFunction),
ColorBlendOperation = VulkanConvertExtensions.ConvertBlendFunction(renderTargetBlendState->ColorBlendFunction),
DestinationAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaDestinationBlend),
DestinationColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorDestinationBlend),
SourceAlphaBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->AlphaSourceBlend),
SourceColorBlendFactor = VulkanConvertExtensions.ConvertBlend(renderTargetBlendState->ColorSourceBlend),
ColorWriteMask = VulkanConvertExtensions.ConvertColorWriteChannels(renderTargetBlendState->ColorWriteChannels),
};
if (description.IndependentBlendEnable)
renderTargetBlendState++;
}
var viewportState = new PipelineViewportStateCreateInfo
{
StructureType = StructureType.PipelineViewportStateCreateInfo,
ScissorCount = 1,
ViewportCount = 1,
};
fixed (DynamicState* dynamicStatesPointer = &dynamicStates[0])
{
var vertexInputState = new PipelineVertexInputStateCreateInfo
{
StructureType = StructureType.PipelineVertexInputStateCreateInfo,
VertexAttributeDescriptionCount = (uint)inputAttributeCount,
VertexAttributeDescriptions = inputAttributes.Length > 0 ? new IntPtr(Interop.Fixed(inputAttributes)) : IntPtr.Zero,
VertexBindingDescriptionCount = (uint)inputBindingCount,
VertexBindingDescriptions = inputBindings.Length > 0 ? new IntPtr(Interop.Fixed(inputBindings)) : IntPtr.Zero,
};
var colorBlendState = new PipelineColorBlendStateCreateInfo
{
StructureType = StructureType.PipelineColorBlendStateCreateInfo,
AttachmentCount = (uint)renderTargetCount,
Attachments = colorBlendAttachments.Length > 0 ? new IntPtr(Interop.Fixed(colorBlendAttachments)) : IntPtr.Zero,
};
var dynamicState = new PipelineDynamicStateCreateInfo
{
StructureType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = (uint)dynamicStates.Length,
DynamicStates = new IntPtr(dynamicStatesPointer)
};
var createInfo = new GraphicsPipelineCreateInfo
{
StructureType = StructureType.GraphicsPipelineCreateInfo,
Layout = NativeLayout,
StageCount = (uint)stages.Length,
Stages = stages.Length > 0 ? new IntPtr(Interop.Fixed(stages)) : IntPtr.Zero,
//TessellationState = new IntPtr(&tessellationState),
VertexInputState = new IntPtr(&vertexInputState),
InputAssemblyState = new IntPtr(&inputAssemblyState),
RasterizationState = new IntPtr(&rasterizationState),
MultisampleState = new IntPtr(&multisampleState),
DepthStencilState = new IntPtr(&depthStencilState),
ColorBlendState = new IntPtr(&colorBlendState),
DynamicState = new IntPtr(&dynamicState),
ViewportState = new IntPtr(&viewportState),
RenderPass = NativeRenderPass,
Subpass = 0,
};
NativePipeline = GraphicsDevice.NativeDevice.CreateGraphicsPipelines(PipelineCache.Null, 1, &createInfo);
}
// Cleanup shader modules
foreach (var stage in stages)
{
GraphicsDevice.NativeDevice.DestroyShaderModule(stage.Module);
}
}
