PreshaderEvaluate.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "CoreMinimal.h"
#include "Shader/Preshader.h"
 
class FUniformExpressionSet;
struct FMaterialRenderContext;
 
namespace UE
{
namespace Shader
{
 
class FPreshaderData;
 
struct FPreshaderDataContext
{
    explicit FPreshaderDataContext(const FPreshaderData& InData);
    FPreshaderDataContext(const FPreshaderDataContext& InContext, uint32 InOffset, uint32 InSize);
 
    const uint8* RESTRICT Ptr;
    const uint8* RESTRICT EndPtr;
    TArrayView<const FScriptName> Names;
    TArrayView<const FPreshaderStructType> StructTypes;
    TArrayView<const EValueComponentType> StructComponentTypes;
};
 
ENGINE_API FPreshaderValue EvaluatePreshader(const FUniformExpressionSet* UniformExpressionSet, const FMaterialRenderContext& Context, FPreshaderStack& Stack, FPreshaderDataContext& RESTRICT Data);
 
ENGINE_API FString PreshaderGenerateDebugString(const FUniformExpressionSet& UniformExpressionSet, const FMaterialRenderContext& Context, FPreshaderDataContext& RESTRICT Data, TMap<FString, uint32>* ParameterReferences = nullptr);
ENGINE_API void PreshaderComputeDebugStats(const FUniformExpressionSet& UniformExpressionSet, const FMaterialRenderContext& Context, FPreshaderDataContext& RESTRICT Data, uint32& TotalParameters, uint32& TotalOps);
 
} // namespace Shader
} // namespace UE