54 lines
2.2 KiB
C
54 lines
2.2 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_DNSR_SHADOWS_PREPARESHADOWMASK_HLSL
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#define FFX_DNSR_SHADOWS_PREPARESHADOWMASK_HLSL
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#include "ffx_denoiser_shadows_util.h"
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void FFX_DNSR_Shadows_CopyResult(FfxUInt32x2 gtid, FfxUInt32x2 gid)
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{
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const FfxUInt32x2 did = gid * FfxUInt32x2(8, 4) + gtid;
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const FfxUInt32 linear_tile_index = FFX_DNSR_Shadows_LinearTileIndex(gid, BufferDimensions().x);
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const FfxBoolean hit_light = HitsLight(did, gtid, gid);
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const FfxUInt32 lane_mask = hit_light ? FFX_DNSR_Shadows_GetBitMaskFromPixelPosition(did) : 0;
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StoreShadowMask(linear_tile_index, ffxWaveOr(lane_mask));
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}
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void FFX_DNSR_Shadows_PrepareShadowMask(FfxUInt32x2 gtid, FfxUInt32x2 gid)
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{
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gid *= 4;
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FfxUInt32x2 tile_dimensions = (BufferDimensions() + FfxUInt32x2(7, 3)) / FfxUInt32x2(8, 4);
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for (FfxInt32 i = 0; i < 4; ++i)
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{
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for (FfxInt32 j = 0; j < 4; ++j)
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{
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FfxUInt32x2 tile_id = FfxUInt32x2(gid.x + i, gid.y + j);
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tile_id = clamp(tile_id, FfxUInt32x2(0, 0), tile_dimensions - FfxUInt32x2(1,1));
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FFX_DNSR_Shadows_CopyResult(gtid, tile_id);
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}
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}
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}
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#endif
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