RenderGraphParameters.inl

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
template <typename FunctionType>
void FRDGParameterStruct::Enumerate(FunctionType Function) const
{
    EnumerateUniformBuffers([&](FRDGUniformBufferBinding UniformBuffer)
    {
        UniformBuffer->GetParameters().Enumerate(Function);
    });
 
    for (uint32 Index = 0, Count = Layout->GraphResources.Num(); Index < Count; ++Index)
    {
        Function(GetParameterInternal(Layout->GraphResources, Index));
    }
}
 
template <typename FunctionType>
void FRDGParameterStruct::EnumerateTextures(FunctionType Function) const
{
    EnumerateUniformBuffers([&](FRDGUniformBufferBinding UniformBuffer)
    {
        UniformBuffer->GetParameters().EnumerateTextures(Function);
    });
 
    for (uint32 Index = 0, Count = Layout->GraphTextures.Num(); Index < Count; ++Index)
    {
        Function(GetParameterInternal(Layout->GraphTextures, Index));
    }
}
 
template <typename FunctionType>
void FRDGParameterStruct::EnumerateBuffers(FunctionType Function) const
{
    EnumerateUniformBuffers([&](FRDGUniformBufferBinding UniformBuffer)
    {
        UniformBuffer->GetParameters().EnumerateBuffers(Function);
    });
 
    for (uint32 Index = 0, Count = Layout->GraphBuffers.Num(); Index < Count; ++Index)
    {
        Function(GetParameterInternal(Layout->GraphBuffers, Index));
    }
}
 
template <typename FunctionType>
void FRDGParameterStruct::EnumerateUniformBuffers(FunctionType Function) const
{
    for (uint32 Index = 0, Count = Layout->GraphUniformBuffers.Num(); Index < Count; ++Index)
    {
        const FRDGParameter Parameter = GetParameterInternal(Layout->GraphUniformBuffers, Index);
 
        if (FRDGUniformBufferBinding UniformBuffer = Parameter.GetAsUniformBuffer())
        {
            Function(UniformBuffer);
        }
    }
}
 
inline void FRDGParameterStruct::ClearUniformBuffers(void* Contents, const FRHIUniformBufferLayout* Layout)
{
    FRDGParameterStruct Parameters(Contents, Layout);
 
    for (uint32 Index = 0, Count = Layout->UniformBuffers.Num(); Index < Count; ++Index)
    {
        const FRDGParameter Parameter = Parameters.GetParameterInternal(Layout->UniformBuffers, Index);
 
        if (FUniformBufferBinding* UniformBuffer = Parameter.GetAs<FUniformBufferBinding>())
        {
            *UniformBuffer = {};
        }
    }
}