private VertexLayoutDescription createVertexLayout()
{
var vertexElementDescriptionPosition = new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2);
var vertexElementDescriptionColor = new VertexElementDescription("Color", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4);
return(new VertexLayoutDescription(vertexElementDescriptionPosition, vertexElementDescriptionColor));
}
public IPipelineBuilder With(VertexElementDescription vertexElementDescr)
{
if (Collection.Factory.BackendType == GraphicsBackend.Direct3D11)
{
vertexElementDescr.Semantic = VertexElementSemantic.TextureCoordinate; // TODO: Maybe watch the Veldrid bug for that?
}
vertexElements.Last().Add(vertexElementDescr);
return(this);
}
public override VertexElementDescription[] GetVertexElementDescriptions()
{
// Ignore last VertexElement, because it's D3DDECLEND
var result = new VertexElementDescription[VertexElements.Length - 1];
for (var i = 0; i < result.Length; i++)
{
result[i] = VertexElements[i].GetVertexElementDescription();
}
return(result);
}
/*
*
* Display icons for the visualiser bar
*
*/
public static ShaderSetDescription CreateVisBarPointIconShader(GraphicsDevice gd)
{
VertexElementDescription VEDpos = new VertexElementDescription("Coord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2);
VertexElementDescription VEDcol = new VertexElementDescription("Color", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4);
VertexLayoutDescription vertexLayout = new VertexLayoutDescription(VEDpos, VEDcol);
byte[] nodeVertShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.vs_visbar_points);
byte[] nodeFragShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.fs_visbar_points);
ShaderDescription vertexShaderDesc = new ShaderDescription(ShaderStages.Vertex, nodeVertShaderBytes, "main");
ShaderDescription fragmentShaderDesc = new ShaderDescription(ShaderStages.Fragment, nodeFragShaderBytes, "main");
ShaderSetDescription shaderSetDesc = new ShaderSetDescription(
vertexLayouts: new VertexLayoutDescription[] { vertexLayout },
shaders: gd.ResourceFactory.CreateFromSpirv(vertexShaderDesc, fragmentShaderDesc));
return(shaderSetDesc);
}
/*
*
* Picking node points for mousing over instruction verts
*
*/
public static ShaderSetDescription CreateNodePickingShaders(GraphicsDevice gd, out DeviceBuffer vertBuffer)
{
VertexElementDescription VEDpos = new VertexElementDescription("PositionBufIndex", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Int1);
VertexElementDescription VEDcol = new VertexElementDescription("Color", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4);
VertexLayoutDescription vertexLayout = new VertexLayoutDescription(VEDpos, VEDcol);
byte[] vertShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.vspickingglsl);
byte[] fragShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.fspickingglsl);
ShaderDescription vertexShaderDesc = new ShaderDescription(ShaderStages.Vertex, vertShaderBytes, "main");
ShaderDescription fragmentShaderDesc = new ShaderDescription(ShaderStages.Fragment, fragShaderBytes, "main");
ShaderSetDescription shaderSetDesc = new ShaderSetDescription(
vertexLayouts: new VertexLayoutDescription[] { vertexLayout },
shaders: gd.ResourceFactory.CreateFromSpirv(vertexShaderDesc, fragmentShaderDesc));
vertBuffer = VeldridGraphBuffers.TrackedVRAMAlloc(gd, 1, BufferUsage.VertexBuffer, name: "NodePickingShaderVertexBufInitial");
return(shaderSetDesc);
}
public override VertexElementDescription[] GetVertexElementDescriptions()
{
// For example:
// p0:00:3f32 n0:0C:3f32 c0:18:4u8n g0:1C:3f32 b0:28:3f32 t0:34:2f32
var elements = VertexDeclaration.Split(' ');
var result = new VertexElementDescription[elements.Length];
for (var i = 0; i < result.Length; i++)
{
var parts = elements[i].Split(':');
result[i] = new VertexElementDescription(
parts[0],
VertexElementSemantic.TextureCoordinate,
GetFormat(parts[2]),
Convert.ToUInt32(parts[1], 16));
}
return(result);
}
private void FlushVertexLayouts()
{
uint totalSlotsBound = 0;
VertexLayoutDescription[] layouts = _graphicsPipeline.GraphicsDescription.ShaderSet.VertexLayouts;
for (int i = 0; i < layouts.Length; i++)
{
VertexLayoutDescription input = layouts[i];
OpenGLBuffer vb = _vertexBuffers[i];
glBindBuffer(BufferTarget.ArrayBuffer, vb.Buffer);
uint offset = 0;
for (uint slot = 0; slot < input.Elements.Length; slot++)
{
ref VertexElementDescription element = ref input.Elements[slot]; // Large structure -- use by reference.
uint actualSlot = totalSlotsBound + slot;
if (actualSlot >= _vertexAttributesBound)
{
glEnableVertexAttribArray(actualSlot);
}
VertexAttribPointerType type = OpenGLFormats.VdToGLVertexAttribPointerType(
element.Format,
out bool normalized);
glVertexAttribPointer(
actualSlot,
FormatHelpers.GetElementCount(element.Format),
type,
normalized,
(uint)_graphicsPipeline.VertexStrides[i],
(void *)offset);
uint stepRate = input.InstanceStepRate;
if (_vertexAttribDivisors[actualSlot] != stepRate)
{
glVertexAttribDivisor(actualSlot, stepRate);
_vertexAttribDivisors[actualSlot] = stepRate;
}
offset += FormatHelpers.GetSizeInBytes(element.Format);
}
totalSlotsBound += (uint)input.Elements.Length;
}
/*
*
* Font triangles
*
*/
public static ShaderSetDescription CreateFontShaders(GraphicsDevice gd, out DeviceBuffer vertBuffer)
{
VertexElementDescription nodeIdx = new VertexElementDescription("nodeIdx", VertexElementSemantic.TextureCoordinate, VertexElementFormat.UInt1);
VertexElementDescription VEDpos = new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3);
VertexElementDescription Charpos = new VertexElementDescription("CharCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2);
VertexElementDescription yoff = new VertexElementDescription("YOffset", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float1);
VertexElementDescription fcol = new VertexElementDescription("FontColour", VertexElementSemantic.Color, VertexElementFormat.Float4);
VertexLayoutDescription vertexLayout = new VertexLayoutDescription(nodeIdx, VEDpos, Charpos, yoff, fcol);
byte[] vertShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.vsfontglsl);
byte[] fragShaderBytes = Encoding.UTF8.GetBytes(Shaders.SPIR_V.SPIRVShaders.fsfontglsl);
ShaderDescription vertexShaderDesc = new ShaderDescription(ShaderStages.Vertex, vertShaderBytes, "main");
ShaderDescription fragmentShaderDesc = new ShaderDescription(ShaderStages.Fragment, fragShaderBytes, "main");
ShaderSetDescription shaderSetDesc = new ShaderSetDescription(
vertexLayouts: new VertexLayoutDescription[] { vertexLayout },
shaders: gd.ResourceFactory.CreateFromSpirv(vertexShaderDesc, fragmentShaderDesc));
vertBuffer = VeldridGraphBuffers.TrackedVRAMAlloc(gd, 1, BufferUsage.VertexBuffer, name: "FontShaderVertexBufInitial");
return(shaderSetDesc);
}
private InputLayout CreateNewInputLayout(VertexLayoutDescription[] vertexLayouts, byte[] vsBytecode)
{
int totalCount = 0;
for (int i = 0; i < vertexLayouts.Length; i++)
{
totalCount += vertexLayouts[i].Elements.Length;
}
int element = 0; // Total element index across slots.
InputElement[] elements = new InputElement[totalCount];
SemanticIndices si = new SemanticIndices();
for (int slot = 0; slot < vertexLayouts.Length; slot++)
{
VertexElementDescription[] elementDescs = vertexLayouts[slot].Elements;
uint stepRate = vertexLayouts[slot].InstanceStepRate;
int currentOffset = 0;
for (int i = 0; i < elementDescs.Length; i++)
{
VertexElementDescription desc = elementDescs[i];
elements[element] = new InputElement(
GetSemanticString(desc.Semantic),
SemanticIndices.GetAndIncrement(ref si, desc.Semantic),
D3D11Formats.ToDxgiFormat(desc.Format),
currentOffset,
slot,
stepRate == 0 ? InputClassification.PerVertexData : InputClassification.PerInstanceData,
(int)stepRate);
currentOffset += (int)FormatHelpers.GetSizeInBytes(desc.Format);
element += 1;
}
}
return(new InputLayout(_device, vsBytecode, elements));
}
override protected void CreateResources()
{
_cameraProjViewBuffer = _factory.CreateBuffer(new BufferDescription(128, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
ResourceLayoutElementDescription resourceLayoutElementDescription = new ResourceLayoutElementDescription("projView", ResourceKind.UniformBuffer, ShaderStages.Vertex);
ResourceLayoutElementDescription[] resourceLayoutElementDescriptions = { resourceLayoutElementDescription };
ResourceLayoutDescription resourceLayoutDescription = new ResourceLayoutDescription(resourceLayoutElementDescriptions);
BindableResource[] bindableResources = new BindableResource[] { _cameraProjViewBuffer };
_resourceLayout = _factory.CreateResourceLayout(resourceLayoutDescription);
ResourceSetDescription resourceSetDescription = new ResourceSetDescription(_resourceLayout, bindableResources);
_resourceSet = _factory.CreateResourceSet(resourceSetDescription);
Mesh <VertexPositionNDCColor> coloredQuad
= GeometryFactory.GenerateColorQuadNDC_XY(RgbaFloat.Red, RgbaFloat.Green, RgbaFloat.Blue, RgbaFloat.Yellow);
ushort[] quadIndicies = GeometryFactory.GenerateQuadIndicies_TriangleStrip_CW();
float[] _xOffset = { -2f, 2f };
// declare (VBO) buffers
_vertexBuffer
= _factory.CreateBuffer(new BufferDescription(coloredQuad.Vertices.LengthUnsigned() * VertexPositionNDCColor.SizeInBytes, BufferUsage.VertexBuffer));
_indexBuffer
= _factory.CreateBuffer(new BufferDescription(quadIndicies.LengthUnsigned() * sizeof(ushort), BufferUsage.IndexBuffer));
_xOffsetBuffer
= _factory.CreateBuffer(new BufferDescription(_xOffset.LengthUnsigned() * sizeof(float), BufferUsage.VertexBuffer));
// fill buffers with data
GraphicsDevice.UpdateBuffer(_vertexBuffer, 0, coloredQuad.Vertices);
GraphicsDevice.UpdateBuffer(_indexBuffer, 0, quadIndicies);
GraphicsDevice.UpdateBuffer(_xOffsetBuffer, 0, _xOffset);
GraphicsDevice.UpdateBuffer(_cameraProjViewBuffer, 0, Camera.ViewMatrix);
GraphicsDevice.UpdateBuffer(_cameraProjViewBuffer, 64, Camera.ProjectionMatrix);
VertexLayoutDescription vertexLayout
= new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float2),
new VertexElementDescription("Color", VertexElementSemantic.Color, VertexElementFormat.Float4)
);
VertexElementDescription vertexElementPerInstance
= new VertexElementDescription("xOff", VertexElementSemantic.Position, VertexElementFormat.Float1);
VertexLayoutDescription vertexLayoutPerInstance
= new VertexLayoutDescription(
stride: 4,
instanceStepRate: 1,
elements: new VertexElementDescription[] { vertexElementPerInstance }
);
_vertexShader = IO.LoadShader("OffsetXNDCColor", ShaderStages.Vertex, GraphicsDevice);
_fragmentShader = IO.LoadShader("Color", ShaderStages.Fragment, GraphicsDevice);
GraphicsPipelineDescription pipelineDescription = new GraphicsPipelineDescription()
{
BlendState = BlendStateDescription.SingleOverrideBlend,
DepthStencilState = new DepthStencilStateDescription(
depthTestEnabled: true,
depthWriteEnabled: true,
comparisonKind: ComparisonKind.LessEqual),
RasterizerState = new RasterizerStateDescription(
cullMode: FaceCullMode.Back,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
),
PrimitiveTopology = PrimitiveTopology.TriangleStrip,
ResourceLayouts = new ResourceLayout[] { _resourceLayout },
ShaderSet = new ShaderSetDescription(
vertexLayouts: new VertexLayoutDescription[] { vertexLayout, vertexLayoutPerInstance },
shaders: new Shader[] { _vertexShader, _fragmentShader }
),
Outputs = GraphicsDevice.SwapchainFramebuffer.OutputDescription
};
_pipeline = _factory.CreateGraphicsPipeline(pipelineDescription);
}
public VkPipeline(VkGraphicsDevice gd, ref GraphicsPipelineDescription description)
: base(ref description)
{
_gd = gd;
IsComputePipeline = false;
RefCount = new ResourceRefCount(DisposeCore);
VkGraphicsPipelineCreateInfo pipelineCI = VkGraphicsPipelineCreateInfo.New();
// Blend State
VkPipelineColorBlendStateCreateInfo blendStateCI = VkPipelineColorBlendStateCreateInfo.New();
int attachmentsCount = description.BlendState.AttachmentStates.Length;
VkPipelineColorBlendAttachmentState *attachmentsPtr
= stackalloc VkPipelineColorBlendAttachmentState[attachmentsCount];
for (int i = 0; i < attachmentsCount; i++)
{
BlendAttachmentDescription vdDesc = description.BlendState.AttachmentStates[i];
VkPipelineColorBlendAttachmentState attachmentState = new VkPipelineColorBlendAttachmentState();
attachmentState.srcColorBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.SourceColorFactor);
attachmentState.dstColorBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.DestinationColorFactor);
attachmentState.colorBlendOp = VkFormats.VdToVkBlendOp(vdDesc.ColorFunction);
attachmentState.srcAlphaBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.SourceAlphaFactor);
attachmentState.dstAlphaBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.DestinationAlphaFactor);
attachmentState.alphaBlendOp = VkFormats.VdToVkBlendOp(vdDesc.AlphaFunction);
attachmentState.blendEnable = vdDesc.BlendEnabled;
attachmentState.colorWriteMask = VkColorComponentFlags.R | VkColorComponentFlags.G | VkColorComponentFlags.B | VkColorComponentFlags.A;
attachmentsPtr[i] = attachmentState;
}
blendStateCI.attachmentCount = (uint)attachmentsCount;
blendStateCI.pAttachments = attachmentsPtr;
RgbaFloat blendFactor = description.BlendState.BlendFactor;
blendStateCI.blendConstants_0 = blendFactor.R;
blendStateCI.blendConstants_1 = blendFactor.G;
blendStateCI.blendConstants_2 = blendFactor.B;
blendStateCI.blendConstants_3 = blendFactor.A;
pipelineCI.pColorBlendState = &blendStateCI;
// Rasterizer State
RasterizerStateDescription rsDesc = description.RasterizerState;
VkPipelineRasterizationStateCreateInfo rsCI = VkPipelineRasterizationStateCreateInfo.New();
rsCI.cullMode = VkFormats.VdToVkCullMode(rsDesc.CullMode);
rsCI.polygonMode = VkFormats.VdToVkPolygonMode(rsDesc.FillMode);
rsCI.depthClampEnable = !rsDesc.DepthClipEnabled;
rsCI.frontFace = rsDesc.FrontFace == FrontFace.Clockwise ? VkFrontFace.Clockwise : VkFrontFace.CounterClockwise;
rsCI.lineWidth = 1f;
pipelineCI.pRasterizationState = &rsCI;
ScissorTestEnabled = rsDesc.ScissorTestEnabled;
// Dynamic State
VkPipelineDynamicStateCreateInfo dynamicStateCI = VkPipelineDynamicStateCreateInfo.New();
VkDynamicState *dynamicStates = stackalloc VkDynamicState[2];
dynamicStates[0] = VkDynamicState.Viewport;
dynamicStates[1] = VkDynamicState.Scissor;
dynamicStateCI.dynamicStateCount = 2;
dynamicStateCI.pDynamicStates = dynamicStates;
pipelineCI.pDynamicState = &dynamicStateCI;
// Depth Stencil State
DepthStencilStateDescription vdDssDesc = description.DepthStencilState;
VkPipelineDepthStencilStateCreateInfo dssCI = VkPipelineDepthStencilStateCreateInfo.New();
dssCI.depthWriteEnable = vdDssDesc.DepthWriteEnabled;
dssCI.depthTestEnable = vdDssDesc.DepthTestEnabled;
dssCI.depthCompareOp = VkFormats.VdToVkCompareOp(vdDssDesc.DepthComparison);
dssCI.stencilTestEnable = vdDssDesc.StencilTestEnabled;
dssCI.front.failOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilFront.Fail);
dssCI.front.passOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilFront.Pass);
dssCI.front.depthFailOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilFront.DepthFail);
dssCI.front.compareOp = VkFormats.VdToVkCompareOp(vdDssDesc.StencilFront.Comparison);
dssCI.front.compareMask = vdDssDesc.StencilReadMask;
dssCI.front.writeMask = vdDssDesc.StencilWriteMask;
dssCI.front.reference = vdDssDesc.StencilReference;
dssCI.back.failOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilBack.Fail);
dssCI.back.passOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilBack.Pass);
dssCI.back.depthFailOp = VkFormats.VdToVkStencilOp(vdDssDesc.StencilBack.DepthFail);
dssCI.back.compareOp = VkFormats.VdToVkCompareOp(vdDssDesc.StencilBack.Comparison);
dssCI.back.compareMask = vdDssDesc.StencilReadMask;
dssCI.back.writeMask = vdDssDesc.StencilWriteMask;
dssCI.back.reference = vdDssDesc.StencilReference;
pipelineCI.pDepthStencilState = &dssCI;
// Multisample
VkPipelineMultisampleStateCreateInfo multisampleCI = VkPipelineMultisampleStateCreateInfo.New();
VkSampleCountFlags vkSampleCount = VkFormats.VdToVkSampleCount(description.Outputs.SampleCount);
multisampleCI.rasterizationSamples = vkSampleCount;
multisampleCI.alphaToCoverageEnable = description.BlendState.AlphaToCoverageEnabled;
pipelineCI.pMultisampleState = &multisampleCI;
// Input Assembly
VkPipelineInputAssemblyStateCreateInfo inputAssemblyCI = VkPipelineInputAssemblyStateCreateInfo.New();
inputAssemblyCI.topology = VkFormats.VdToVkPrimitiveTopology(description.PrimitiveTopology);
pipelineCI.pInputAssemblyState = &inputAssemblyCI;
// Vertex Input State
VkPipelineVertexInputStateCreateInfo vertexInputCI = VkPipelineVertexInputStateCreateInfo.New();
VertexLayoutDescription[] inputDescriptions = description.ShaderSet.VertexLayouts;
uint bindingCount = (uint)inputDescriptions.Length;
uint attributeCount = 0;
for (int i = 0; i < inputDescriptions.Length; i++)
{
attributeCount += (uint)inputDescriptions[i].Elements.Length;
}
VkVertexInputBindingDescription * bindingDescs = stackalloc VkVertexInputBindingDescription[(int)bindingCount];
VkVertexInputAttributeDescription *attributeDescs = stackalloc VkVertexInputAttributeDescription[(int)attributeCount];
int targetIndex = 0;
int targetLocation = 0;
for (int binding = 0; binding < inputDescriptions.Length; binding++)
{
VertexLayoutDescription inputDesc = inputDescriptions[binding];
bindingDescs[binding] = new VkVertexInputBindingDescription()
{
binding = (uint)binding,
inputRate = (inputDesc.InstanceStepRate != 0) ? VkVertexInputRate.Instance : VkVertexInputRate.Vertex,
stride = inputDesc.Stride
};
uint currentOffset = 0;
for (int location = 0; location < inputDesc.Elements.Length; location++)
{
VertexElementDescription inputElement = inputDesc.Elements[location];
attributeDescs[targetIndex] = new VkVertexInputAttributeDescription()
{
format = VkFormats.VdToVkVertexElementFormat(inputElement.Format),
binding = (uint)binding,
location = (uint)(targetLocation + location),
offset = inputElement.Offset != 0 ? inputElement.Offset : currentOffset
};
targetIndex += 1;
currentOffset += FormatHelpers.GetSizeInBytes(inputElement.Format);
}
targetLocation += inputDesc.Elements.Length;
}
vertexInputCI.vertexBindingDescriptionCount = bindingCount;
vertexInputCI.pVertexBindingDescriptions = bindingDescs;
vertexInputCI.vertexAttributeDescriptionCount = attributeCount;
vertexInputCI.pVertexAttributeDescriptions = attributeDescs;
pipelineCI.pVertexInputState = &vertexInputCI;
// Shader Stage
VkSpecializationInfo specializationInfo;
SpecializationConstant[] specDescs = description.ShaderSet.Specializations;
if (specDescs != null)
{
uint specDataSize = 0;
foreach (SpecializationConstant spec in specDescs)
{
specDataSize += VkFormats.GetSpecializationConstantSize(spec.Type);
}
byte *fullSpecData = stackalloc byte[(int)specDataSize];
int specializationCount = specDescs.Length;
VkSpecializationMapEntry *mapEntries = stackalloc VkSpecializationMapEntry[specializationCount];
uint specOffset = 0;
for (int i = 0; i < specializationCount; i++)
{
ulong data = specDescs[i].Data;
byte *srcData = (byte *)&data;
uint dataSize = VkFormats.GetSpecializationConstantSize(specDescs[i].Type);
Unsafe.CopyBlock(fullSpecData + specOffset, srcData, dataSize);
mapEntries[i].constantID = specDescs[i].ID;
mapEntries[i].offset = specOffset;
mapEntries[i].size = (UIntPtr)dataSize;
specOffset += dataSize;
}
specializationInfo.dataSize = (UIntPtr)specDataSize;
specializationInfo.pData = fullSpecData;
specializationInfo.mapEntryCount = (uint)specializationCount;
specializationInfo.pMapEntries = mapEntries;
}
Shader[] shaders = description.ShaderSet.Shaders;
StackList <VkPipelineShaderStageCreateInfo> stages = new StackList <VkPipelineShaderStageCreateInfo>();
foreach (Shader shader in shaders)
{
VkShader vkShader = Util.AssertSubtype <Shader, VkShader>(shader);
VkPipelineShaderStageCreateInfo stageCI = VkPipelineShaderStageCreateInfo.New();
stageCI.module = vkShader.ShaderModule;
stageCI.stage = VkFormats.VdToVkShaderStages(shader.Stage);
// stageCI.pName = CommonStrings.main; // Meh
stageCI.pName = new FixedUtf8String(shader.EntryPoint); // TODO: DONT ALLOCATE HERE
stageCI.pSpecializationInfo = &specializationInfo;
stages.Add(stageCI);
}
pipelineCI.stageCount = stages.Count;
pipelineCI.pStages = (VkPipelineShaderStageCreateInfo *)stages.Data;
// ViewportState
VkPipelineViewportStateCreateInfo viewportStateCI = VkPipelineViewportStateCreateInfo.New();
viewportStateCI.viewportCount = 1;
viewportStateCI.scissorCount = 1;
pipelineCI.pViewportState = &viewportStateCI;
// Pipeline Layout
ResourceLayout[] resourceLayouts = description.ResourceLayouts;
VkPipelineLayoutCreateInfo pipelineLayoutCI = VkPipelineLayoutCreateInfo.New();
pipelineLayoutCI.setLayoutCount = (uint)resourceLayouts.Length;
VkDescriptorSetLayout *dsls = stackalloc VkDescriptorSetLayout[resourceLayouts.Length];
for (int i = 0; i < resourceLayouts.Length; i++)
{
dsls[i] = Util.AssertSubtype <ResourceLayout, VkResourceLayout>(resourceLayouts[i]).DescriptorSetLayout;
}
pipelineLayoutCI.pSetLayouts = dsls;
vkCreatePipelineLayout(_gd.Device, ref pipelineLayoutCI, null, out _pipelineLayout);
pipelineCI.layout = _pipelineLayout;
// Create fake RenderPass for compatibility.
VkRenderPassCreateInfo renderPassCI = VkRenderPassCreateInfo.New();
OutputDescription outputDesc = description.Outputs;
StackList <VkAttachmentDescription, Size512Bytes> attachments = new StackList <VkAttachmentDescription, Size512Bytes>();
// TODO: A huge portion of this next part is duplicated in VkFramebuffer.cs.
StackList <VkAttachmentDescription> colorAttachmentDescs = new StackList <VkAttachmentDescription>();
StackList <VkAttachmentReference> colorAttachmentRefs = new StackList <VkAttachmentReference>();
for (uint i = 0; i < outputDesc.ColorAttachments.Length; i++)
{
colorAttachmentDescs[i].format = VkFormats.VdToVkPixelFormat(outputDesc.ColorAttachments[i].Format);
colorAttachmentDescs[i].samples = vkSampleCount;
colorAttachmentDescs[i].loadOp = VkAttachmentLoadOp.DontCare;
colorAttachmentDescs[i].storeOp = VkAttachmentStoreOp.Store;
colorAttachmentDescs[i].stencilLoadOp = VkAttachmentLoadOp.DontCare;
colorAttachmentDescs[i].stencilStoreOp = VkAttachmentStoreOp.DontCare;
colorAttachmentDescs[i].initialLayout = VkImageLayout.Undefined;
colorAttachmentDescs[i].finalLayout = VkImageLayout.ShaderReadOnlyOptimal;
attachments.Add(colorAttachmentDescs[i]);
colorAttachmentRefs[i].attachment = i;
colorAttachmentRefs[i].layout = VkImageLayout.ColorAttachmentOptimal;
}
VkAttachmentDescription depthAttachmentDesc = new VkAttachmentDescription();
VkAttachmentReference depthAttachmentRef = new VkAttachmentReference();
if (outputDesc.DepthAttachment != null)
{
PixelFormat depthFormat = outputDesc.DepthAttachment.Value.Format;
bool hasStencil = FormatHelpers.IsStencilFormat(depthFormat);
depthAttachmentDesc.format = VkFormats.VdToVkPixelFormat(outputDesc.DepthAttachment.Value.Format, toDepthFormat: true);
depthAttachmentDesc.samples = vkSampleCount;
depthAttachmentDesc.loadOp = VkAttachmentLoadOp.DontCare;
depthAttachmentDesc.storeOp = VkAttachmentStoreOp.Store;
depthAttachmentDesc.stencilLoadOp = VkAttachmentLoadOp.DontCare;
depthAttachmentDesc.stencilStoreOp = hasStencil ? VkAttachmentStoreOp.Store : VkAttachmentStoreOp.DontCare;
depthAttachmentDesc.initialLayout = VkImageLayout.Undefined;
depthAttachmentDesc.finalLayout = VkImageLayout.DepthStencilAttachmentOptimal;
depthAttachmentRef.attachment = (uint)outputDesc.ColorAttachments.Length;
depthAttachmentRef.layout = VkImageLayout.DepthStencilAttachmentOptimal;
}
VkSubpassDescription subpass = new VkSubpassDescription();
subpass.pipelineBindPoint = VkPipelineBindPoint.Graphics;
subpass.colorAttachmentCount = (uint)outputDesc.ColorAttachments.Length;
subpass.pColorAttachments = (VkAttachmentReference *)colorAttachmentRefs.Data;
for (int i = 0; i < colorAttachmentDescs.Count; i++)
{
attachments.Add(colorAttachmentDescs[i]);
}
if (outputDesc.DepthAttachment != null)
{
subpass.pDepthStencilAttachment = &depthAttachmentRef;
attachments.Add(depthAttachmentDesc);
}
VkSubpassDependency subpassDependency = new VkSubpassDependency();
subpassDependency.srcSubpass = SubpassExternal;
subpassDependency.srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
subpassDependency.dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
subpassDependency.dstAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite;
renderPassCI.attachmentCount = attachments.Count;
renderPassCI.pAttachments = (VkAttachmentDescription *)attachments.Data;
renderPassCI.subpassCount = 1;
renderPassCI.pSubpasses = &subpass;
renderPassCI.dependencyCount = 1;
renderPassCI.pDependencies = &subpassDependency;
VkResult creationResult = vkCreateRenderPass(_gd.Device, ref renderPassCI, null, out _renderPass);
CheckResult(creationResult);
pipelineCI.renderPass = _renderPass;
VkResult result = vkCreateGraphicsPipelines(_gd.Device, VkPipelineCache.Null, 1, ref pipelineCI, null, out _devicePipeline);
CheckResult(result);
ResourceSetCount = (uint)description.ResourceLayouts.Length;
DynamicOffsetsCount = 0;
foreach (VkResourceLayout layout in description.ResourceLayouts)
{
DynamicOffsetsCount += layout.DynamicBufferCount;
}
}
public MTLPipeline(ref GraphicsPipelineDescription description, MTLGraphicsDevice gd)
: base(ref description)
{
PrimitiveType = MTLFormats.VdToMTLPrimitiveTopology(description.PrimitiveTopology);
ResourceLayouts = new MTLResourceLayout[description.ResourceLayouts.Length];
NonVertexBufferCount = 0;
for (int i = 0; i < ResourceLayouts.Length; i++)
{
ResourceLayouts[i] = Util.AssertSubtype <ResourceLayout, MTLResourceLayout>(description.ResourceLayouts[i]);
NonVertexBufferCount += ResourceLayouts[i].BufferCount;
}
ResourceBindingModel = description.ResourceBindingModel ?? gd.ResourceBindingModel;
CullMode = MTLFormats.VdToMTLCullMode(description.RasterizerState.CullMode);
FrontFace = MTLFormats.VdVoMTLFrontFace(description.RasterizerState.FrontFace);
FillMode = MTLFormats.VdToMTLFillMode(description.RasterizerState.FillMode);
ScissorTestEnabled = description.RasterizerState.ScissorTestEnabled;
MTLRenderPipelineDescriptor mtlDesc = MTLRenderPipelineDescriptor.New();
foreach (Shader shader in description.ShaderSet.Shaders)
{
MTLShader mtlShader = Util.AssertSubtype <Shader, MTLShader>(shader);
MTLFunction specializedFunction;
if (mtlShader.HasFunctionConstants)
{
// Need to create specialized MTLFunction.
MTLFunctionConstantValues constantValues = CreateConstantValues(description.ShaderSet.Specializations);
specializedFunction = mtlShader.Library.newFunctionWithNameConstantValues(mtlShader.EntryPoint, constantValues);
AddSpecializedFunction(specializedFunction);
ObjectiveCRuntime.release(constantValues.NativePtr);
Debug.Assert(specializedFunction.NativePtr != IntPtr.Zero, "Failed to create specialized MTLFunction");
}
else
{
specializedFunction = mtlShader.Function;
}
if (shader.Stage == ShaderStages.Vertex)
{
mtlDesc.vertexFunction = specializedFunction;
}
else if (shader.Stage == ShaderStages.Fragment)
{
mtlDesc.fragmentFunction = specializedFunction;
}
}
// Vertex layouts
VertexLayoutDescription[] vdVertexLayouts = description.ShaderSet.VertexLayouts;
MTLVertexDescriptor vertexDescriptor = mtlDesc.vertexDescriptor;
for (uint i = 0; i < vdVertexLayouts.Length; i++)
{
uint layoutIndex = ResourceBindingModel == ResourceBindingModel.Improved
? NonVertexBufferCount + i
: i;
MTLVertexBufferLayoutDescriptor mtlLayout = vertexDescriptor.layouts[layoutIndex];
mtlLayout.stride = (UIntPtr)vdVertexLayouts[i].Stride;
uint stepRate = vdVertexLayouts[i].InstanceStepRate;
mtlLayout.stepFunction = stepRate == 0 ? MTLVertexStepFunction.PerVertex : MTLVertexStepFunction.PerInstance;
mtlLayout.stepRate = (UIntPtr)Math.Max(1, stepRate);
}
uint element = 0;
for (uint i = 0; i < vdVertexLayouts.Length; i++)
{
uint offset = 0;
VertexLayoutDescription vdDesc = vdVertexLayouts[i];
for (uint j = 0; j < vdDesc.Elements.Length; j++)
{
VertexElementDescription elementDesc = vdDesc.Elements[j];
MTLVertexAttributeDescriptor mtlAttribute = vertexDescriptor.attributes[element];
mtlAttribute.bufferIndex = (UIntPtr)(ResourceBindingModel == ResourceBindingModel.Improved
? NonVertexBufferCount + i
: i);
mtlAttribute.format = MTLFormats.VdToMTLVertexFormat(elementDesc.Format);
mtlAttribute.offset = elementDesc.Offset != 0 ? (UIntPtr)elementDesc.Offset : (UIntPtr)offset;
offset += FormatHelpers.GetSizeInBytes(elementDesc.Format);
element += 1;
}
}
VertexBufferCount = (uint)vdVertexLayouts.Length;
// Outputs
OutputDescription outputs = description.Outputs;
BlendStateDescription blendStateDesc = description.BlendState;
BlendColor = blendStateDesc.BlendFactor;
if (outputs.SampleCount != TextureSampleCount.Count1)
{
mtlDesc.sampleCount = (UIntPtr)FormatHelpers.GetSampleCountUInt32(outputs.SampleCount);
}
if (outputs.DepthAttachment != null)
{
PixelFormat depthFormat = outputs.DepthAttachment.Value.Format;
MTLPixelFormat mtlDepthFormat = MTLFormats.VdToMTLPixelFormat(depthFormat, true);
mtlDesc.depthAttachmentPixelFormat = mtlDepthFormat;
if ((FormatHelpers.IsStencilFormat(depthFormat)))
{
HasStencil = true;
mtlDesc.stencilAttachmentPixelFormat = mtlDepthFormat;
}
}
for (uint i = 0; i < outputs.ColorAttachments.Length; i++)
{
BlendAttachmentDescription attachmentBlendDesc = blendStateDesc.AttachmentStates[i];
MTLRenderPipelineColorAttachmentDescriptor colorDesc = mtlDesc.colorAttachments[i];
colorDesc.pixelFormat = MTLFormats.VdToMTLPixelFormat(outputs.ColorAttachments[i].Format, false);
colorDesc.blendingEnabled = attachmentBlendDesc.BlendEnabled;
colorDesc.alphaBlendOperation = MTLFormats.VdToMTLBlendOp(attachmentBlendDesc.AlphaFunction);
colorDesc.sourceAlphaBlendFactor = MTLFormats.VdToMTLBlendFactor(attachmentBlendDesc.SourceAlphaFactor);
colorDesc.destinationAlphaBlendFactor = MTLFormats.VdToMTLBlendFactor(attachmentBlendDesc.DestinationAlphaFactor);
colorDesc.rgbBlendOperation = MTLFormats.VdToMTLBlendOp(attachmentBlendDesc.ColorFunction);
colorDesc.sourceRGBBlendFactor = MTLFormats.VdToMTLBlendFactor(attachmentBlendDesc.SourceColorFactor);
colorDesc.destinationRGBBlendFactor = MTLFormats.VdToMTLBlendFactor(attachmentBlendDesc.DestinationColorFactor);
}
RenderPipelineState = gd.Device.newRenderPipelineStateWithDescriptor(mtlDesc);
ObjectiveCRuntime.release(mtlDesc.NativePtr);
if (outputs.DepthAttachment != null)
{
MTLDepthStencilDescriptor depthDescriptor = MTLUtil.AllocInit <MTLDepthStencilDescriptor>(
nameof(MTLDepthStencilDescriptor));
depthDescriptor.depthCompareFunction = MTLFormats.VdToMTLCompareFunction(
description.DepthStencilState.DepthComparison);
depthDescriptor.depthWriteEnabled = description.DepthStencilState.DepthWriteEnabled;
bool stencilEnabled = description.DepthStencilState.StencilTestEnabled;
if (stencilEnabled)
{
StencilReference = description.DepthStencilState.StencilReference;
StencilBehaviorDescription vdFrontDesc = description.DepthStencilState.StencilFront;
MTLStencilDescriptor front = MTLUtil.AllocInit <MTLStencilDescriptor>(nameof(MTLStencilDescriptor));
front.readMask = stencilEnabled ? description.DepthStencilState.StencilReadMask : 0u;
front.writeMask = stencilEnabled ? description.DepthStencilState.StencilWriteMask : 0u;
front.depthFailureOperation = MTLFormats.VdToMTLStencilOperation(vdFrontDesc.DepthFail);
front.stencilFailureOperation = MTLFormats.VdToMTLStencilOperation(vdFrontDesc.Fail);
front.depthStencilPassOperation = MTLFormats.VdToMTLStencilOperation(vdFrontDesc.Pass);
front.stencilCompareFunction = MTLFormats.VdToMTLCompareFunction(vdFrontDesc.Comparison);
depthDescriptor.frontFaceStencil = front;
StencilBehaviorDescription vdBackDesc = description.DepthStencilState.StencilBack;
MTLStencilDescriptor back = MTLUtil.AllocInit <MTLStencilDescriptor>(nameof(MTLStencilDescriptor));
back.readMask = stencilEnabled ? description.DepthStencilState.StencilReadMask : 0u;
back.writeMask = stencilEnabled ? description.DepthStencilState.StencilWriteMask : 0u;
back.depthFailureOperation = MTLFormats.VdToMTLStencilOperation(vdBackDesc.DepthFail);
back.stencilFailureOperation = MTLFormats.VdToMTLStencilOperation(vdBackDesc.Fail);
back.depthStencilPassOperation = MTLFormats.VdToMTLStencilOperation(vdBackDesc.Pass);
back.stencilCompareFunction = MTLFormats.VdToMTLCompareFunction(vdBackDesc.Comparison);
depthDescriptor.backFaceStencil = back;
ObjectiveCRuntime.release(front.NativePtr);
ObjectiveCRuntime.release(back.NativePtr);
}
DepthStencilState = gd.Device.newDepthStencilStateWithDescriptor(depthDescriptor);
ObjectiveCRuntime.release(depthDescriptor.NativePtr);
}
DepthClipMode = description.DepthStencilState.DepthTestEnabled ? MTLDepthClipMode.Clip : MTLDepthClipMode.Clamp;
}
private void WriteVertexElementDesc(BinaryWriter writer, VertexElementDescription desc)
{
writer.Write(desc.Name);
writer.WriteEnum(desc.Semantic);
writer.WriteEnum(desc.Format);
}
public VkPipeline(VkGraphicsDevice gd, ref PipelineDescription description)
{
_gd = gd;
VkGraphicsPipelineCreateInfo pipelineCI = VkGraphicsPipelineCreateInfo.New();
// Blend State
VkPipelineColorBlendStateCreateInfo blendStateCI = VkPipelineColorBlendStateCreateInfo.New();
int attachmentsCount = description.BlendState.AttachmentStates.Length;
VkPipelineColorBlendAttachmentState *attachmentsPtr
= stackalloc VkPipelineColorBlendAttachmentState[attachmentsCount];
for (int i = 0; i < attachmentsCount; i++)
{
BlendAttachmentDescription vdDesc = description.BlendState.AttachmentStates[i];
VkPipelineColorBlendAttachmentState attachmentState = new VkPipelineColorBlendAttachmentState();
attachmentState.srcColorBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.SourceColorFactor);
attachmentState.dstColorBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.DestinationColorFactor);
attachmentState.colorBlendOp = VkFormats.VdToVkBlendOp(vdDesc.ColorFunction);
attachmentState.srcAlphaBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.SourceAlphaFactor);
attachmentState.dstAlphaBlendFactor = VkFormats.VdToVkBlendFactor(vdDesc.DestinationAlphaFactor);
attachmentState.alphaBlendOp = VkFormats.VdToVkBlendOp(vdDesc.AlphaFunction);
attachmentState.blendEnable = vdDesc.BlendEnabled;
attachmentState.colorWriteMask = VkColorComponentFlags.R | VkColorComponentFlags.G | VkColorComponentFlags.B | VkColorComponentFlags.A;
attachmentsPtr[i] = attachmentState;
}
blendStateCI.attachmentCount = (uint)attachmentsCount;
blendStateCI.pAttachments = attachmentsPtr;
RgbaFloat blendFactor = description.BlendState.BlendFactor;
blendStateCI.blendConstants_0 = blendFactor.R;
blendStateCI.blendConstants_1 = blendFactor.G;
blendStateCI.blendConstants_2 = blendFactor.B;
blendStateCI.blendConstants_3 = blendFactor.A;
pipelineCI.pColorBlendState = &blendStateCI;
// Rasterizer State
RasterizerStateDescription rsDesc = description.RasterizerState;
VkPipelineRasterizationStateCreateInfo rsCI = VkPipelineRasterizationStateCreateInfo.New();
rsCI.cullMode = VkFormats.VdToVkCullMode(rsDesc.CullMode);
rsCI.polygonMode = VkFormats.VdToVkPolygonMode(rsDesc.FillMode);
rsCI.depthClampEnable = !rsDesc.DepthClipEnabled;
rsCI.frontFace = VkFrontFace.Clockwise;
rsCI.lineWidth = 1f;
pipelineCI.pRasterizationState = &rsCI;
// Dynamic State
VkPipelineDynamicStateCreateInfo dynamicStateCI = VkPipelineDynamicStateCreateInfo.New();
VkDynamicState *dynamicStates = stackalloc VkDynamicState[2];
dynamicStates[0] = VkDynamicState.Viewport;
dynamicStates[1] = VkDynamicState.Scissor;
dynamicStateCI.dynamicStateCount = 2;
dynamicStateCI.pDynamicStates = dynamicStates;
pipelineCI.pDynamicState = &dynamicStateCI;
// Depth Stencil State
DepthStencilStateDescription vdDssDesc = description.DepthStencilState;
VkPipelineDepthStencilStateCreateInfo dssCI = VkPipelineDepthStencilStateCreateInfo.New();
dssCI.depthWriteEnable = vdDssDesc.DepthWriteEnabled;
dssCI.depthTestEnable = vdDssDesc.DepthTestEnabled;
dssCI.depthCompareOp = VkFormats.VdToVkCompareOp(vdDssDesc.ComparisonKind);
pipelineCI.pDepthStencilState = &dssCI;
// Multisample
VkPipelineMultisampleStateCreateInfo multisampleCI = VkPipelineMultisampleStateCreateInfo.New();
multisampleCI.rasterizationSamples = VkSampleCountFlags.Count1;
pipelineCI.pMultisampleState = &multisampleCI;
// Input Assembly
VkPipelineInputAssemblyStateCreateInfo inputAssemblyCI = VkPipelineInputAssemblyStateCreateInfo.New();
inputAssemblyCI.topology = VkFormats.VdToVkPrimitiveTopology(description.PrimitiveTopology);
pipelineCI.pInputAssemblyState = &inputAssemblyCI;
// Vertex Input State
VkPipelineVertexInputStateCreateInfo vertexInputCI = VkPipelineVertexInputStateCreateInfo.New();
VertexLayoutDescription[] inputDescriptions = description.ShaderSet.VertexLayouts;
uint bindingCount = (uint)inputDescriptions.Length;
uint attributeCount = 0;
for (int i = 0; i < inputDescriptions.Length; i++)
{
attributeCount += (uint)inputDescriptions[i].Elements.Length;
}
VkVertexInputBindingDescription * bindingDescs = stackalloc VkVertexInputBindingDescription[(int)bindingCount];
VkVertexInputAttributeDescription *attributeDescs = stackalloc VkVertexInputAttributeDescription[(int)attributeCount];
int targetIndex = 0;
int targetLocation = 0;
for (int binding = 0; binding < inputDescriptions.Length; binding++)
{
VertexLayoutDescription inputDesc = inputDescriptions[binding];
bindingDescs[targetIndex] = new VkVertexInputBindingDescription()
{
binding = (uint)binding,
inputRate = (inputDesc.Elements[0].InstanceStepRate != 0) ? VkVertexInputRate.Instance : VkVertexInputRate.Vertex,
stride = inputDesc.Stride
};
uint currentOffset = 0;
for (int location = 0; location < inputDesc.Elements.Length; location++)
{
VertexElementDescription inputElement = inputDesc.Elements[location];
attributeDescs[targetIndex] = new VkVertexInputAttributeDescription()
{
format = VkFormats.VdToVkVertexElementFormat(inputElement.Format),
binding = (uint)binding,
location = (uint)(targetLocation + location),
offset = currentOffset
};
targetIndex += 1;
currentOffset += FormatHelpers.GetSizeInBytes(inputElement.Format);
}
targetLocation += inputDesc.Elements.Length;
}
vertexInputCI.vertexBindingDescriptionCount = bindingCount;
vertexInputCI.pVertexBindingDescriptions = bindingDescs;
vertexInputCI.vertexAttributeDescriptionCount = attributeCount;
vertexInputCI.pVertexAttributeDescriptions = attributeDescs;
pipelineCI.pVertexInputState = &vertexInputCI;
// Shader Stage
ShaderStageDescription[] stageDescs = description.ShaderSet.ShaderStages;
StackList <VkPipelineShaderStageCreateInfo> stages = new StackList <VkPipelineShaderStageCreateInfo>();
foreach (ShaderStageDescription stageDesc in stageDescs)
{
VkShader vkShader = Util.AssertSubtype <Shader, VkShader>(stageDesc.Shader);
VkPipelineShaderStageCreateInfo stageCI = VkPipelineShaderStageCreateInfo.New();
stageCI.module = vkShader.ShaderModule;
stageCI.stage = VkFormats.VdToVkShaderStages(stageDesc.Stage);
stageCI.pName = CommonStrings.main; // Meh
stages.Add(stageCI);
}
pipelineCI.stageCount = stages.Count;
pipelineCI.pStages = (VkPipelineShaderStageCreateInfo *)stages.Data;
// ViewportState
VkPipelineViewportStateCreateInfo viewportStateCI = VkPipelineViewportStateCreateInfo.New();
viewportStateCI.viewportCount = 1;
viewportStateCI.scissorCount = 1;
pipelineCI.pViewportState = &viewportStateCI;
// Pipeline Layout
ResourceLayout[] resourceLayouts = description.ResourceLayouts;
VkPipelineLayoutCreateInfo pipelineLayoutCI = VkPipelineLayoutCreateInfo.New();
pipelineLayoutCI.setLayoutCount = (uint)resourceLayouts.Length;
VkDescriptorSetLayout *dsls = stackalloc VkDescriptorSetLayout[resourceLayouts.Length];
for (int i = 0; i < resourceLayouts.Length; i++)
{
dsls[i] = Util.AssertSubtype <ResourceLayout, VkResourceLayout>(resourceLayouts[i]).DescriptorSetLayout;
}
pipelineLayoutCI.pSetLayouts = dsls;
vkCreatePipelineLayout(_gd.Device, ref pipelineLayoutCI, null, out _pipelineLayout);
pipelineCI.layout = _pipelineLayout;
// Create fake RenderPass for compatibility.
VkRenderPassCreateInfo renderPassCI = VkRenderPassCreateInfo.New();
OutputDescription outputDesc = description.Outputs;
if (outputDesc.ColorAttachments.Length > 1)
{
throw new NotImplementedException("Laziness");
}
VkAttachmentDescription colorAttachmentDesc = new VkAttachmentDescription();
colorAttachmentDesc.format = outputDesc.ColorAttachments.Length > 0
? VkFormats.VdToVkPixelFormat(outputDesc.ColorAttachments[0].Format) : 0;
colorAttachmentDesc.samples = VkSampleCountFlags.Count1;
colorAttachmentDesc.loadOp = VkAttachmentLoadOp.Clear;
colorAttachmentDesc.storeOp = VkAttachmentStoreOp.Store;
colorAttachmentDesc.stencilLoadOp = VkAttachmentLoadOp.DontCare;
colorAttachmentDesc.stencilStoreOp = VkAttachmentStoreOp.DontCare;
colorAttachmentDesc.initialLayout = VkImageLayout.Undefined;
colorAttachmentDesc.finalLayout = VkImageLayout.PresentSrcKHR;
VkAttachmentReference colorAttachmentRef = new VkAttachmentReference();
colorAttachmentRef.attachment = 0;
colorAttachmentRef.layout = VkImageLayout.ColorAttachmentOptimal;
VkAttachmentDescription depthAttachmentDesc = new VkAttachmentDescription();
VkAttachmentReference depthAttachmentRef = new VkAttachmentReference();
if (outputDesc.DepthAttachment != null)
{
depthAttachmentDesc.format = VkFormats.VdToVkPixelFormat(outputDesc.DepthAttachment.Value.Format, toDepthFormat: true);
depthAttachmentDesc.samples = VkSampleCountFlags.Count1;
depthAttachmentDesc.loadOp = VkAttachmentLoadOp.Clear;
depthAttachmentDesc.storeOp = VkAttachmentStoreOp.Store;
depthAttachmentDesc.stencilLoadOp = VkAttachmentLoadOp.DontCare;
depthAttachmentDesc.stencilStoreOp = VkAttachmentStoreOp.DontCare;
depthAttachmentDesc.initialLayout = VkImageLayout.Undefined;
depthAttachmentDesc.finalLayout = VkImageLayout.DepthStencilAttachmentOptimal;
depthAttachmentRef.attachment = outputDesc.ColorAttachments.Length == 0 ? 0u : 1u;
depthAttachmentRef.layout = VkImageLayout.DepthStencilAttachmentOptimal;
}
VkSubpassDescription subpass = new VkSubpassDescription();
StackList <VkAttachmentDescription, Size512Bytes> attachments = new StackList <VkAttachmentDescription, Size512Bytes>();
subpass.pipelineBindPoint = VkPipelineBindPoint.Graphics;
if (outputDesc.ColorAttachments.Length > 0)
{
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorAttachmentRef;
attachments.Add(colorAttachmentDesc);
}
if (outputDesc.DepthAttachment != null)
{
subpass.pDepthStencilAttachment = &depthAttachmentRef;
attachments.Add(depthAttachmentDesc);
}
VkSubpassDependency subpassDependency = new VkSubpassDependency();
subpassDependency.srcSubpass = SubpassExternal;
subpassDependency.srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
subpassDependency.dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
subpassDependency.dstAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite;
if (outputDesc.DepthAttachment != null)
{
subpassDependency.dstAccessMask |= VkAccessFlags.DepthStencilAttachmentRead | VkAccessFlags.DepthStencilAttachmentWrite;
}
renderPassCI.attachmentCount = attachments.Count;
renderPassCI.pAttachments = (VkAttachmentDescription *)attachments.Data;
renderPassCI.subpassCount = 1;
renderPassCI.pSubpasses = &subpass;
renderPassCI.dependencyCount = 1;
renderPassCI.pDependencies = &subpassDependency;
VkResult creationResult = vkCreateRenderPass(_gd.Device, ref renderPassCI, null, out _renderPass);
CheckResult(creationResult);
pipelineCI.renderPass = _renderPass;
VkResult result = vkCreateGraphicsPipelines(_gd.Device, VkPipelineCache.Null, 1, ref pipelineCI, null, out _devicePipeline);
CheckResult(result);
ResourceSetCount = (uint)description.ResourceLayouts.Length;
}
/// <summary>
/// Cross-compiles the given vertex-fragment pair into some target language.
/// </summary>
/// <param name="vsBytes">The vertex shader's SPIR-V bytecode or ASCII-encoded GLSL source code.</param>
/// <param name="fsBytes">The fragment shader's SPIR-V bytecode or ASCII-encoded GLSL source code.</param>
/// <param name="target">The target language.</param>
/// <param name="options">The options for shader translation.</param>
/// <returns>A <see cref="VertexFragmentCompilationResult"/> containing the compiled output.</returns>
public static unsafe VertexFragmentCompilationResult CompileVertexFragment(
byte[] vsBytes,
byte[] fsBytes,
CrossCompileTarget target,
CrossCompileOptions options)
{
int size1 = sizeof(CrossCompileInfo);
int size2 = sizeof(InteropArray);
byte[] vsSpirvBytes;
byte[] fsSpirvBytes;
if (Util.HasSpirvHeader(vsBytes))
{
vsSpirvBytes = vsBytes;
}
else
{
fixed(byte *sourceTextPtr = vsBytes)
{
SpirvCompilationResult vsCompileResult = CompileGlslToSpirv(
(uint)vsBytes.Length,
sourceTextPtr,
string.Empty,
ShaderStages.Vertex,
target == CrossCompileTarget.GLSL || target == CrossCompileTarget.ESSL,
0,
null);
vsSpirvBytes = vsCompileResult.SpirvBytes;
}
}
if (Util.HasSpirvHeader(fsBytes))
{
fsSpirvBytes = fsBytes;
}
else
{
fixed(byte *sourceTextPtr = fsBytes)
{
SpirvCompilationResult fsCompileResult = CompileGlslToSpirv(
(uint)fsBytes.Length,
sourceTextPtr,
string.Empty,
ShaderStages.Fragment,
target == CrossCompileTarget.GLSL || target == CrossCompileTarget.ESSL,
0,
null);
fsSpirvBytes = fsCompileResult.SpirvBytes;
}
}
int specConstantsCount = options.Specializations.Length;
NativeSpecializationConstant *nativeSpecConstants = stackalloc NativeSpecializationConstant[specConstantsCount];
for (int i = 0; i < specConstantsCount; i++)
{
nativeSpecConstants[i].ID = options.Specializations[i].ID;
nativeSpecConstants[i].Constant = options.Specializations[i].Data;
}
CrossCompileInfo info;
info.Target = target;
info.FixClipSpaceZ = options.FixClipSpaceZ;
info.InvertY = options.InvertVertexOutputY;
info.NormalizeResourceNames = options.NormalizeResourceNames;
fixed(byte *vsBytesPtr = vsSpirvBytes)
fixed(byte *fsBytesPtr = fsSpirvBytes)
{
info.VertexShader = new InteropArray((uint)vsSpirvBytes.Length / 4, vsBytesPtr);
info.FragmentShader = new InteropArray((uint)fsSpirvBytes.Length / 4, fsBytesPtr);
info.Specializations = new InteropArray((uint)specConstantsCount, nativeSpecConstants);
CompilationResult *result = null;
try
{
result = VeldridSpirvNative.CrossCompile(&info);
if (!result->Succeeded)
{
throw new SpirvCompilationException(
"Compilation failed: " + Util.GetString((byte *)result->GetData(0), result->GetLength(0)));
}
string vsCode = Util.GetString((byte *)result->GetData(0), result->GetLength(0));
string fsCode = Util.GetString((byte *)result->GetData(1), result->GetLength(1));
ReflectionInfo *reflInfo = &result->ReflectionInfo;
VertexElementDescription[] vertexElements = new VertexElementDescription[reflInfo->VertexElements.Count];
for (uint i = 0; i < reflInfo->VertexElements.Count; i++)
{
ref NativeVertexElementDescription nativeDesc
= ref reflInfo->VertexElements.Ref <NativeVertexElementDescription>(i);
vertexElements[i] = new VertexElementDescription(
Util.GetString((byte *)nativeDesc.Name.Data, nativeDesc.Name.Count),
nativeDesc.Semantic,
nativeDesc.Format,
nativeDesc.Offset);
}
ResourceLayoutDescription[] layouts = new ResourceLayoutDescription[reflInfo->ResourceLayouts.Count];
for (uint i = 0; i < reflInfo->ResourceLayouts.Count; i++)
{
ref NativeResourceLayoutDescription nativeDesc =
ref reflInfo->ResourceLayouts.Ref <NativeResourceLayoutDescription>(i);
layouts[i].Elements = new ResourceLayoutElementDescription[nativeDesc.ResourceElements.Count];
for (uint j = 0; j < nativeDesc.ResourceElements.Count; j++)
{
ref NativeResourceElementDescription elemDesc =
ref nativeDesc.ResourceElements.Ref <NativeResourceElementDescription>(j);
layouts[i].Elements[j] = new ResourceLayoutElementDescription(
Util.GetString((byte *)elemDesc.Name.Data, elemDesc.Name.Count),
elemDesc.Kind,
elemDesc.Stages,
elemDesc.Options);
}
}
public static VeldridGeometry Create(IMesh mesh)
{
var gpuMesh = mesh.ToGpuMesh();
var result = new VeldridGeometry();
var bufferViewToPrimitive = new Dictionary <IBufferView, VeldridPrimitive>();
var vertexBufferMemoryStream = new MemoryStream();
result.IndexFormat = Veldrid.IndexFormat.UInt16;
using (var vertexBufferWriter = new BinaryWriter(vertexBufferMemoryStream))
{
foreach (var bufferView in gpuMesh.BufferViews)
{
var veldridPrimitive = new VeldridPrimitive();
veldridPrimitive.VertexBufferOffset = (uint)vertexBufferMemoryStream.Position;
var streamKeys = bufferView.GetStreams().Select(_ => new SortableStreamKey(_)).OrderBy(_ => _)
.Select(_ => _.Key).ToList();
var elements = new VertexElementDescription[streamKeys.Count];
var accessors = new IStreamAccessor[streamKeys.Count];
for (var index = 0; index < streamKeys.Count; index++)
{
var reader = accessors[index] = GetAccessor(bufferView, streamKeys[index]);
elements[index] = new VertexElementDescription(streamKeys[index].ToString(),
VertexElementSemantic.TextureCoordinate, reader.VertexElementFormat);
}
var count = accessors[0].Count;
if (count > ushort.MaxValue)
{
result.IndexFormat = Veldrid.IndexFormat.UInt32;
}
for (var index = 0; index < count; index++)
{
for (var accessorIndex = 0; accessorIndex < accessors.Length; accessorIndex++)
{
accessors[accessorIndex].Write(index, vertexBufferWriter);
}
}
veldridPrimitive.VertexLayout = new VertexLayoutDescription(elements);
bufferViewToPrimitive.Add(bufferView, veldridPrimitive);
}
}
result.VertexBuffer = new Memory <byte>(vertexBufferMemoryStream.ToArray());
var indexBufferMemoryStream = new MemoryStream();
result.Primitives = new VeldridPrimitive[gpuMesh.Primitives.Count];
using (var indexBufferWriter = new BinaryWriter(indexBufferMemoryStream))
{
for (var primitiveIndex = 0; primitiveIndex < gpuMesh.Primitives.Count; primitiveIndex++)
{
var primitive = gpuMesh.Primitives[primitiveIndex];
var primitiveBase = bufferViewToPrimitive[primitive.BufferView];
var veldridPrimitive = new VeldridPrimitive()
{
VertexBufferOffset = primitiveBase.VertexBufferOffset,
PrimitiveTopology = GetTopology(primitive.Topology),
IndexBufferOffset = (uint)indexBufferMemoryStream.Position,
VertexLayout = primitiveBase.VertexLayout
};
if (result.IndexFormat == Veldrid.IndexFormat.UInt32)
{
foreach (var index in primitive)
{
indexBufferWriter.Write((uint)index);
}
}
else if (result.IndexFormat == Veldrid.IndexFormat.UInt16)
{
foreach (var index in primitive)
{
indexBufferWriter.Write((ushort)index);
}
}
else
{
throw new NotImplementedException();
}
result.Primitives[primitiveIndex] = veldridPrimitive;
}
}
result.IndexBuffer = new Memory <byte>(indexBufferMemoryStream.ToArray());
return(result);
}
