Steve Pham
72 lines
3.2 KiB
C++
72 lines
3.2 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include <Atom/RPI.Public/Shader/ShaderVariant2.h>
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#include <Atom/RHI/DrawListTagRegistry.h>
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#include <Atom/RHI/RHISystemInterface.h>
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#include <Atom/RHI.Reflect/ShaderStageFunction.h>
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namespace AZ
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{
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namespace RPI
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{
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bool ShaderVariant2::Init(
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const ShaderAsset2& shaderAsset,
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Data::Asset<ShaderVariantAsset2> shaderVariantAsset,
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SupervariantIndex supervariantIndex)
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{
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m_pipelineStateType = shaderAsset.GetPipelineStateType();
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m_pipelineLayoutDescriptor = shaderAsset.GetPipelineLayoutDescriptor(supervariantIndex);
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m_shaderVariantAsset = shaderVariantAsset;
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m_renderStates = &shaderAsset.GetRenderStates(supervariantIndex);
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return true;
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}
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void ShaderVariant2::ConfigurePipelineState(RHI::PipelineStateDescriptor& descriptor) const
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{
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descriptor.m_pipelineLayoutDescriptor = m_pipelineLayoutDescriptor;
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switch (descriptor.GetType())
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{
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case RHI::PipelineStateType::Draw:
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{
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AZ_Assert(m_pipelineStateType == RHI::PipelineStateType::Draw, "ShaderVariant2 is not intended for the raster pipeline.");
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AZ_Assert(m_renderStates, "Invalid RenderStates");
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RHI::PipelineStateDescriptorForDraw& descriptorForDraw = static_cast<RHI::PipelineStateDescriptorForDraw&>(descriptor);
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descriptorForDraw.m_vertexFunction = m_shaderVariantAsset->GetShaderStageFunction(RHI::ShaderStage::Vertex);
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descriptorForDraw.m_tessellationFunction = m_shaderVariantAsset->GetShaderStageFunction(RHI::ShaderStage::Tessellation);
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descriptorForDraw.m_fragmentFunction = m_shaderVariantAsset->GetShaderStageFunction(RHI::ShaderStage::Fragment);
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descriptorForDraw.m_renderStates = *m_renderStates;
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break;
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}
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case RHI::PipelineStateType::Dispatch:
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{
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AZ_Assert(m_pipelineStateType == RHI::PipelineStateType::Dispatch, "ShaderVariant2 is not intended for the compute pipeline.");
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RHI::PipelineStateDescriptorForDispatch& descriptorForDispatch = static_cast<RHI::PipelineStateDescriptorForDispatch&>(descriptor);
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descriptorForDispatch.m_computeFunction = m_shaderVariantAsset->GetShaderStageFunction(RHI::ShaderStage::Compute);
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break;
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}
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case RHI::PipelineStateType::RayTracing:
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{
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AZ_Assert(m_pipelineStateType == RHI::PipelineStateType::RayTracing, "ShaderVariant2 is not intended for the ray tracing pipeline.");
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RHI::PipelineStateDescriptorForRayTracing& descriptorForRayTracing = static_cast<RHI::PipelineStateDescriptorForRayTracing&>(descriptor);
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descriptorForRayTracing.m_rayTracingFunction = m_shaderVariantAsset->GetShaderStageFunction(RHI::ShaderStage::RayTracing);
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break;
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}
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default:
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AZ_Assert(false, "Unexpected PipelineStateType");
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break;
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}
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}
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} // namespace RPI
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} // namespace AZ
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