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84 lines
2.8 KiB
Plaintext
84 lines
2.8 KiB
Plaintext
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2020-2022 Baldur Karlsson
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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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******************************************************************************/
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#if defined(GLES)
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#extension GL_OES_texture_storage_multisample_2d_array : require
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#elif defined(OPENGL_CORE)
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#extension GL_ARB_compute_shader : require
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// safe to assume this extension in compute shaders as it pre-dates compute shaders
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#extension GL_ARB_shading_language_420pack : require
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#endif
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#include "glsl_globals.h"
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layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
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layout(binding = 0) uniform PRECISION usampler2DArray srcArray;
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// binding = 1 used as stencil read in the depth-stencil copy fragment shaders
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#ifdef VULKAN
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layout(binding = 2) writeonly uniform PRECISION uimage2DMSArray dstMS;
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layout(push_constant) uniform multisamplePush
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{
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int numMultiSamples;
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int sampleOffset;
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int sliceOffset;
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uint currentStencil;
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}
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mscopy;
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#define numMultiSamples (mscopy.numMultiSamples)
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#define sampleOffset (mscopy.sampleOffset)
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#define sliceOffset (mscopy.sliceOffset)
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#define currentStencil (mscopy.currentStencil)
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#else
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layout(rgba32ui, binding = 2) writeonly uniform PRECISION uimage2DMSArray dstMS;
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uniform ivec4 mscopy;
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#define numMultiSamples (mscopy.x)
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#define sampleOffset (mscopy.y)
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#define sliceOffset (mscopy.z)
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#define currentStencil (mscopy.w)
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#endif
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void main()
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{
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ivec3 id = ivec3(gl_GlobalInvocationID);
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int slice = sliceOffset + int(id.z / numMultiSamples);
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int sampleIdx = sampleOffset + int(id.z % numMultiSamples);
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uvec4 data =
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texelFetch(srcArray, ivec3(int(id.x), int(id.y), slice *numMultiSamples + sampleIdx), 0);
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imageStore(dstMS, ivec3(int(id.x), int(id.y), slice), sampleIdx, data);
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}
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