/// <summary>
/// No documentation for Direct3D12
/// </summary>
/// <param name="descRef">No documentation.</param>
/// <param name="riid">No documentation.</param>
/// <returns>No documentation.</returns>
/// <include file='.\..\Documentation\CodeComments.xml' path="/comments/comment[@id='ID3D12Device::CreateGraphicsPipelineState']/*"/>
/// <unmanaged>HRESULT ID3D12Device::CreateGraphicsPipelineState([In] const void* pDesc,[In] const GUID& riid,[Out] ID3D12PipelineState** ppPipelineState)</unmanaged>
/// <unmanaged-short>ID3D12Device::CreateGraphicsPipelineState</unmanaged-short>
public unsafe SharpDX.Direct3D12.PipelineState CreateGraphicsPipelineState(SharpDX.Direct3D12.GraphicsPipelineStateDescription desc)
{
// Use a custom marshalling routine for this class
var nativeDesc = new GraphicsPipelineStateDescription.__Native();
desc.__MarshalTo(ref nativeDesc);
// Pin buffers if necessary
fixed(void *pVertexShader = desc.VertexShader.Buffer)
fixed(void *pGeometryShader = desc.GeometryShader.Buffer)
fixed(void *pDomainShader = desc.DomainShader.Buffer)
fixed(void *pHullShader = desc.HullShader.Buffer)
fixed(void *pPixelShader = desc.PixelShader.Buffer)
{
// Transfer pin buffer address to marshal
desc.VertexShader.UpdateNative(ref nativeDesc.VertexShader, (IntPtr)pVertexShader);
desc.GeometryShader.UpdateNative(ref nativeDesc.GeometryShader, (IntPtr)pGeometryShader);
desc.DomainShader.UpdateNative(ref nativeDesc.DomainShader, (IntPtr)pDomainShader);
desc.HullShader.UpdateNative(ref nativeDesc.HullShader, (IntPtr)pHullShader);
desc.PixelShader.UpdateNative(ref nativeDesc.PixelShader, (IntPtr)pPixelShader);
// Marshal input elements
var elements = desc.InputLayout.Elements;
var nativeElements = (InputElement.__Native *) 0;
if (elements != null && elements.Length > 0)
{
var ptr = stackalloc InputElement.__Native[elements.Length];
nativeElements = ptr;
for (int i = 0; i < elements.Length; i++)
{
elements[i].__MarshalTo(ref nativeElements[i]);
}
nativeDesc.InputLayout.InputElementsPointer = new IntPtr(nativeElements);
nativeDesc.InputLayout.ElementCount = elements.Length;
}
try
{
// Create the pipeline state
return(CreateGraphicsPipelineState(new IntPtr(&nativeDesc), Utilities.GetGuidFromType(typeof(PipelineState))));
}
finally
{
if (elements != null)
{
for (int i = 0; i < elements.Length; i++)
{
nativeElements[i].__MarshalFree();
}
}
}
}
}
public PipelineAssets(Pipeline pipeline)
{
var rootSignatureParameters = new SharpDX.Direct3D12.RootParameter[]
{
new SharpDX.Direct3D12.RootParameter(
SharpDX.Direct3D12.ShaderVisibility.Vertex,
new SharpDX.Direct3D12.DescriptorRange()
{
RangeType = SharpDX.Direct3D12.DescriptorRangeType.ConstantBufferView,
BaseShaderRegister = 0,
OffsetInDescriptorsFromTableStart = int.MinValue,
DescriptorCount = 1
}
)
};
var rootSignatureDescription = new SharpDX.Direct3D12.RootSignatureDescription(SharpDX.Direct3D12.RootSignatureFlags.AllowInputAssemblerInputLayout, rootSignatureParameters);
var rootSignature = pipeline.D3D12Device.CreateRootSignature(rootSignatureDescription.Serialize());
var vertexShader = new SharpDX.Direct3D12.ShaderBytecode(SharpDX.D3DCompiler.ShaderBytecode.CompileFromFile("src/Shaders/FlatColor.hlsl", "VSMain", "vs_5_0"));
var pixelShader = new SharpDX.Direct3D12.ShaderBytecode(SharpDX.D3DCompiler.ShaderBytecode.CompileFromFile("src/Shaders/FlatColor.hlsl", "PSMain", "ps_5_0"));
var inputElementDescs = new[]
{
new SharpDX.Direct3D12.InputElement("POSITION", 0, SharpDX.DXGI.Format.R32G32B32_Float, 0, 0),
new SharpDX.Direct3D12.InputElement("COLOR", 0, SharpDX.DXGI.Format.R32G32B32A32_Float, 12, 0)
};
var pipelineStateObjectDescription = new SharpDX.Direct3D12.GraphicsPipelineStateDescription()
{
InputLayout = new SharpDX.Direct3D12.InputLayoutDescription(inputElementDescs),
RootSignature = rootSignature,
VertexShader = vertexShader,
PixelShader = pixelShader,
RasterizerState = SharpDX.Direct3D12.RasterizerStateDescription.Default(),
BlendState = SharpDX.Direct3D12.BlendStateDescription.Default(),
DepthStencilFormat = SharpDX.DXGI.Format.D32_Float,
DepthStencilState = new SharpDX.Direct3D12.DepthStencilStateDescription()
{
IsDepthEnabled = false, IsStencilEnabled = false
},
SampleMask = int.MaxValue,
PrimitiveTopologyType = SharpDX.Direct3D12.PrimitiveTopologyType.Triangle,
RenderTargetCount = 1,
Flags = SharpDX.Direct3D12.PipelineStateFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
StreamOutput = new SharpDX.Direct3D12.StreamOutputDescription()
};
pipelineStateObjectDescription.RenderTargetFormats[0] = SharpDX.DXGI.Format.R8G8B8A8_UNorm;
var pipelineState = pipeline.D3D12Device.CreateGraphicsPipelineState(pipelineStateObjectDescription);
var cbvHeapDescription = new SharpDX.Direct3D12.DescriptorHeapDescription()
{
DescriptorCount = 1,
Flags = SharpDX.Direct3D12.DescriptorHeapFlags.ShaderVisible,
Type = SharpDX.Direct3D12.DescriptorHeapType.ConstantBufferViewShaderResourceViewUnorderedAccessView
};
var constantBufferViewHeap = pipeline.D3D12Device.CreateDescriptorHeap(cbvHeapDescription);
var constantBuffer = pipeline.D3D12Device.CreateCommittedResource(new SharpDX.Direct3D12.HeapProperties(SharpDX.Direct3D12.HeapType.Upload), SharpDX.Direct3D12.HeapFlags.None, SharpDX.Direct3D12.ResourceDescription.Buffer(1024 * 64), SharpDX.Direct3D12.ResourceStates.GenericRead);
var cbvDescription = new SharpDX.Direct3D12.ConstantBufferViewDescription()
{
BufferLocation = constantBuffer.GPUVirtualAddress,
SizeInBytes = (SharpDX.Utilities.SizeOf <ConstantBuffer>() + 255) & ~255
};
pipeline.D3D12Device.CreateConstantBufferView(cbvDescription, constantBufferViewHeap.CPUDescriptorHandleForHeapStart);
var constantBufferPointer = constantBuffer.Map(0);
var triangleVertices = new[]
{
new Vertex()
{
Position = new SharpDX.Vector3(0.0f, 0.25f, 0.0f), Color = new SharpDX.Vector4(1.0f, 0.0f, 0.0f, 1.0f)
},
new Vertex()
{
Position = new SharpDX.Vector3(0.25f, -0.25f, 0.0f), Color = new SharpDX.Vector4(0.0f, 1.0f, 0.0f, 1.0f)
},
new Vertex()
{
Position = new SharpDX.Vector3(-0.25f, -0.25f, 0.0f), Color = new SharpDX.Vector4(0.0f, 0.0f, 1.0f, 1.0f)
}
};
var vertexBufferSize = SharpDX.Utilities.SizeOf(triangleVertices);
var vertexBuffer = pipeline.D3D12Device.CreateCommittedResource(new SharpDX.Direct3D12.HeapProperties(SharpDX.Direct3D12.HeapType.Upload), SharpDX.Direct3D12.HeapFlags.None, SharpDX.Direct3D12.ResourceDescription.Buffer(vertexBufferSize), SharpDX.Direct3D12.ResourceStates.GenericRead);
var pVertexDataBegin = vertexBuffer.Map(0);
SharpDX.Utilities.Write(pVertexDataBegin, triangleVertices, 0, triangleVertices.Length);
vertexBuffer.Unmap(0);
var vertexBufferView = new SharpDX.Direct3D12.VertexBufferView();
vertexBufferView.BufferLocation = vertexBuffer.GPUVirtualAddress;
vertexBufferView.StrideInBytes = SharpDX.Utilities.SizeOf <Vertex>();
vertexBufferView.SizeInBytes = vertexBufferSize;
PipelineState = pipelineState;
RootSignature = rootSignature;
VertexBufferView = vertexBufferView;
ConstantBufferViewHeap = constantBufferViewHeap;
ConstantBufferPointer = constantBufferPointer;
}
