73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
// This file is part of the FidelityFX Super Resolution 3.1 Unreal Engine Plugin.
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//
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// Copyright (c) 2023-2025 Advanced Micro Devices, Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "FFXRHIBackendShaders.h"
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#include "ShaderCompilerCore.h"
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#if UE_VERSION_AT_LEAST(5, 2, 0)
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#include "DataDrivenShaderPlatformInfo.h"
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#endif
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bool FFXGlobalShader::ShouldCompilePermutation(const FGlobalShaderPermutationParameters& Parameters)
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{
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#if UE_VERSION_AT_LEAST(5, 1, 0)
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bool const bWaveOps = FDataDrivenShaderPlatformInfo::GetSupportsWaveOperations(Parameters.Platform) == ERHIFeatureSupport::RuntimeGuaranteed;
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#elif UE_VERSION_AT_LEAST(5, 0, 0)
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bool const bWaveOps = RHISupportsWaveOperations(Parameters.Platform);
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#else
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bool const bWaveOps = FDataDrivenShaderPlatformInfo::GetSupportsWaveOperations(Parameters.Platform) || (Parameters.Platform == SP_PCD3D_SM5);
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#endif
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return IsFeatureLevelSupported(Parameters.Platform, ERHIFeatureLevel::SM5) && bWaveOps && IsPCPlatform(Parameters.Platform);
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}
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void FFXGlobalShader::ModifyCompilationEnvironment(const FGlobalShaderPermutationParameters& Parameters, FShaderCompilerEnvironment& OutEnvironment, bool bPreferWave64)
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{
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FGlobalShader::ModifyCompilationEnvironment(Parameters, OutEnvironment);
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OutEnvironment.CompilerFlags.Add(CFLAG_AllowTypedUAVLoads);
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OutEnvironment.CompilerFlags.Add(CFLAG_WaveOperations);
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if (Parameters.Platform == SP_PCD3D_SM5)
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{
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OutEnvironment.CompilerFlags.Add(CFLAG_ForceDXC);
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}
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OutEnvironment.SetDefine(TEXT("FFX_GPU"), 1);
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OutEnvironment.SetDefine(TEXT("FFX_HLSL"), 1);
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#if UE_VERSION_AT_LEAST(5, 0, 0)
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OutEnvironment.SetDefine(TEXT("UNREAL_VERSION"), 5);
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#else
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OutEnvironment.SetDefine(TEXT("UNREAL_VERSION"), 4);
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#endif
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#if UE_VERSION_AT_LEAST(5, 1, 0)
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if (bPreferWave64
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#if UE_VERSION_AT_LEAST(5, 4, 0)
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&& FDataDrivenShaderPlatformInfo::GetSupportsWave64(Parameters.Platform))
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#else
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&& IsFeatureLevelSupported(Parameters.Platform, ERHIFeatureLevel::SM6))
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#endif
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{
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OutEnvironment.SetDefine(TEXT("FFX_PREFER_WAVE64"), TEXT("[WaveSize(64)]"));
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}
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#endif
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}
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