public ID3D12PipelineState GetState(GraphicsDevice device, PSODesc desc, RootSignature rootSignature)
{
foreach (var psoCombind in PSOCombinds)
{
if (psoCombind.PSODesc == desc && psoCombind.rootSignature == rootSignature)
{
if (psoCombind.pipelineState == null)
{
throw new Exception("pipeline state error");
}
return(psoCombind.pipelineState);
}
}
InputLayoutDescription inputLayoutDescription;
if (device.inputLayouts.TryGetValue(desc.InputLayout, out inputLayoutDescription))
{
}
else
{
inputLayoutDescription = new InputLayoutDescription(new InputElementDescription("POSITION", 0, Format.R32G32B32_Float, 0));
}
GraphicsPipelineStateDescription graphicsPipelineStateDescription = new GraphicsPipelineStateDescription();
graphicsPipelineStateDescription.RootSignature = rootSignature.rootSignature;
graphicsPipelineStateDescription.VertexShader = vertexShader;
graphicsPipelineStateDescription.GeometryShader = geometryShader;
graphicsPipelineStateDescription.PixelShader = pixelShader;
graphicsPipelineStateDescription.PrimitiveTopologyType = PrimitiveTopologyType.Triangle;
graphicsPipelineStateDescription.InputLayout = inputLayoutDescription;
graphicsPipelineStateDescription.DepthStencilFormat = desc.DepthStencilFormat;
graphicsPipelineStateDescription.RenderTargetFormats = new Format[desc.RenderTargetCount];
Array.Fill(graphicsPipelineStateDescription.RenderTargetFormats, desc.RenderTargetFormat);
if (desc.BlendState == "Alpha")
{
graphicsPipelineStateDescription.BlendState = blendStateAlpha();
}
else if (desc.BlendState == "Add")
{
graphicsPipelineStateDescription.BlendState = BlendDescription.Additive;
}
else
{
graphicsPipelineStateDescription.BlendState = BlendDescription.Opaque;
}
graphicsPipelineStateDescription.DepthStencilState = new DepthStencilDescription(desc.DepthStencilFormat != Format.Unknown, desc.DepthStencilFormat != Format.Unknown);
graphicsPipelineStateDescription.SampleMask = uint.MaxValue;
var RasterizerState = new RasterizerDescription(CullMode.None, FillMode.Solid);
RasterizerState.DepthBias = desc.DepthBias;
RasterizerState.SlopeScaledDepthBias = desc.SlopeScaledDepthBias;
graphicsPipelineStateDescription.RasterizerState = RasterizerState;
var pipelineState = device.device.CreateGraphicsPipelineState <ID3D12PipelineState>(graphicsPipelineStateDescription);
if (pipelineState == null)
{
throw new Exception("pipeline state error");
}
PSOCombinds.Add(new PSOCombind {
PSODesc = desc, pipelineState = pipelineState, rootSignature = rootSignature
});
return(pipelineState);
}
public void SetPipelineState(PipelineStateObject pipelineStateObject, PSODesc psoDesc)
{
commandList.SetPipelineState(pipelineStateObject.GetState(graphicsDevice, psoDesc, currentRootSignature));
}