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)) { }
}
}
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()
{
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);
}
}
