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#jira UE-86234 #rb job.cain #ROBOMERGE-SOURCE: CL 10950878 via CL 10950882 via CL 10950884 #ROBOMERGE-BOT: (v632-10940481) [CL 10950885 by thomas engel in Main branch]
47 lines
2.6 KiB
C++
47 lines
2.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "GlobalShader.h"
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struct FGenerateMipsStruct;
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/** Parameters for generating mip maps */
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struct FGenerateMipsParams
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{
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ESamplerFilter Filter = SF_Bilinear;
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ESamplerAddressMode AddressU = AM_Clamp;
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ESamplerAddressMode AddressV = AM_Clamp;
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ESamplerAddressMode AddressW = AM_Clamp;
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};
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class RENDERCORE_API FGenerateMips
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{
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public:
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/**
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* Public function for executing the generate mips compute shader
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* @param RHICmdList RHI command list to use to schedule generation of mips
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* @param InTexture Texture to generate mips for
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* @param InParams Parameters influencing mips generation (Default sampler is always bilinear clamp)
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* @param ExternalMipsStructCache Shared pointer to provide a location to cache internal parameters and resource needed to generate mips (provide if generation is triggered repeatedly)
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* @param bAllowRenderBasedGeneration Set to true if generation via classic rendering is allowable (some platforms do not support compute based generation, but some use cases may disallow this)
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*/
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static void Execute(FRHICommandListImmediate& RHICmdList, FRHITexture* InTexture, TSharedPtr<FGenerateMipsStruct> & ExternalMipsStructCache, const FGenerateMipsParams& InParams = FGenerateMipsParams(), bool bAllowRenderBasedGeneration = false)
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{
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ExecuteInternal(RHICmdList, InTexture, InParams, &ExternalMipsStructCache, bAllowRenderBasedGeneration);
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}
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static void Execute(FRHICommandListImmediate& RHICmdList, FRHITexture* InTexture, const FGenerateMipsParams& InParams = FGenerateMipsParams(), bool bAllowRenderBasedGeneration = false)
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{
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ExecuteInternal(RHICmdList, InTexture, InParams, nullptr, bAllowRenderBasedGeneration);
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}
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static void Execute(class FRDGBuilder* GraphBuilder, class FRDGTexture* InGraphTexture, FRHISamplerState* InSampler);
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private:
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static void ExecuteInternal(FRHICommandListImmediate& RHICmdList, FRHITexture* InTexture, const FGenerateMipsParams& InParams, TSharedPtr<FGenerateMipsStruct> * ExternalMipsStructCache, bool bAllowRenderBasedGeneration);
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static void Compute(FRHICommandListImmediate& RHIImmCmdList, FRHITexture* InTexture, TSharedPtr<FGenerateMipsStruct> GenMipsStruct);
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static TSharedPtr<FGenerateMipsStruct> SetupTexture(FRHITexture* InTexture, const FGenerateMipsParams& InParams = FGenerateMipsParams());
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static void RenderMips(FRHICommandListImmediate& RHICmdList, FRHITexture* InTexture, const FGenerateMipsParams& InParams, TSharedPtr<FGenerateMipsStruct> * ExternalMipsStructCache);
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static void SetupRendering(FGenerateMipsStruct *GenMipsStruct, FRHITexture* InTexture, const FGenerateMipsParams& InParams);
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}; |