80 lines
3.2 KiB
C
80 lines
3.2 KiB
C
// This file is part of the FidelityFX SDK.
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//
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// Copyright (C) 2024 Advanced Micro Devices, Inc.
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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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//
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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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#ifndef FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
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#define FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE 0 // Reference
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#endif
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FfxFloat32x4 WrapHistory(FfxInt32x2 iPxSample)
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{
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return LoadHistory(iPxSample);
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}
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DeclareCustomFetchBicubicSamples(FetchHistorySamples, WrapHistory)
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DeclareCustomTextureSample(HistorySample, FFX_FSR3UPSCALER_GET_LANCZOS_SAMPLER1D(FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE), FetchHistorySamples)
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#if FFX_HALF
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FFX_MIN16_F4 WrapHistory16(FfxInt32x2 iPxSample)
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{
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return FFX_MIN16_F4(LoadHistory(iPxSample));
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}
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DeclareCustomFetchBicubicSamplesMin16(FetchHistorySamples16, WrapHistory16)
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DeclareCustomTextureSampleMin16(HistorySample16, FFX_FSR3UPSCALER_GET_LANCZOS_SAMPLER1D(FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE), FetchHistorySamples16)
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#endif
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FfxFloat32x2 GetMotionVector(FfxInt32x2 iPxHrPos, FfxFloat32x2 fHrUv)
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{
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#if FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
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const FfxFloat32x2 fDilatedMotionVector = LoadDilatedMotionVector(FFX_MIN16_I2(fHrUv * RenderSize()));
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#else
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const FfxFloat32x2 fDilatedMotionVector = LoadInputMotionVector(iPxHrPos);
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#endif
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return fDilatedMotionVector;
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}
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void ComputeReprojectedUVs(FFX_PARAMETER_INOUT AccumulationPassCommonParams params)
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{
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params.fReprojectedHrUv = params.fHrUv + params.fMotionVector;
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params.bIsExistingSample = IsUvInside(params.fReprojectedHrUv);
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}
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void ReprojectHistoryColor(const AccumulationPassCommonParams params, FFX_PARAMETER_INOUT AccumulationPassData data)
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{
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#if FFX_HALF && FFX_FSR3UPSCALER_OPTION_REPROJECT_SAMPLERS_USE_DATA_HALF
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const FfxFloat32x4 fReprojectedHistory = FfxFloat32x4(HistorySample16(params.fReprojectedHrUv, UpscaleSize()));
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#else
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const FfxFloat32x4 fReprojectedHistory = HistorySample(params.fReprojectedHrUv, PreviousFrameUpscaleSize());
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#endif
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data.fHistoryColor = fReprojectedHistory.rgb;
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data.fHistoryColor *= DeltaPreExposure();
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data.fHistoryColor *= Exposure();
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data.fHistoryColor = RGBToYCoCg(data.fHistoryColor);
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data.fLock = fReprojectedHistory.w;
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}
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