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113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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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.Edit/Shader/ShaderVariantAssetCreator.h>
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#include <AzCore/Utils/TypeHash.h>
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#include <Atom/RPI.Reflect/Shader/ShaderOptionGroup.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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void ShaderVariantAssetCreator::Begin(const AZ::Data::AssetId& assetId, const ShaderVariantId& shaderVariantId, RPI::ShaderVariantStableId stableId, bool isFullyBaked)
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{
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BeginCommon(assetId);
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if (ValidateIsReady())
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{
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m_asset->m_stableId = stableId;
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m_asset->m_shaderVariantId = shaderVariantId;
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m_asset->m_isFullyBaked = isFullyBaked;
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}
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}
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bool ShaderVariantAssetCreator::End(Data::Asset<ShaderVariantAsset>& result)
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{
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if (!ValidateIsReady())
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{
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return false;
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}
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if (!m_asset->FinalizeAfterLoad())
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{
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ReportError("Failed to finalize the ShaderResourceGroupAsset.");
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return false;
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}
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if (!m_asset->m_buildTimestamp)
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{
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ReportError("Invalid timestamp");
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return false;
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}
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bool foundDrawFunctions = false;
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bool foundDispatchFunctions = false;
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if (m_asset->GetShaderStageFunction(RHI::ShaderStage::Vertex) ||
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m_asset->GetShaderStageFunction(RHI::ShaderStage::Tessellation) ||
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m_asset->GetShaderStageFunction(RHI::ShaderStage::Fragment))
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{
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foundDrawFunctions = true;
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}
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if (m_asset->GetShaderStageFunction(RHI::ShaderStage::Compute))
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{
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foundDispatchFunctions = true;
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}
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if (foundDrawFunctions && foundDispatchFunctions)
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{
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ReportError("ShaderVariant contains both Draw functions and Dispatch functions.");
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return false;
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}
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if (m_asset->GetShaderStageFunction(RHI::ShaderStage::Fragment) &&
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!m_asset->GetShaderStageFunction(RHI::ShaderStage::Vertex))
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{
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ReportError("Shader Variant with StableId '%u' has a fragment function but no vertex function.", m_asset->m_stableId);
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return false;
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}
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if (m_asset->GetShaderStageFunction(RHI::ShaderStage::Tessellation) &&
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!m_asset->GetShaderStageFunction(RHI::ShaderStage::Vertex))
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{
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ReportError("Shader Variant with StableId '%u' has a tessellation function but no vertex function.", m_asset->m_stableId);
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return false;
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}
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m_asset->SetReady();
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return EndCommon(result);
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}
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/////////////////////////////////////////////////////////////////////
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// Methods for all shader variant types
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void ShaderVariantAssetCreator::SetBuildTimestamp(AZ::u64 buildTimestamp)
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{
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if (ValidateIsReady())
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{
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m_asset->m_buildTimestamp = buildTimestamp;
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}
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}
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void ShaderVariantAssetCreator::SetShaderFunction(RHI::ShaderStage shaderStage, RHI::Ptr<RHI::ShaderStageFunction> shaderStageFunction)
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{
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if (ValidateIsReady())
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{
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m_asset->m_functionsByStage[static_cast<size_t>(shaderStage)] = shaderStageFunction;
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}
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}
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} // namespace RPI
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} // namespace AZ
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