mirror of
https://git.ffmpeg.org/ffmpeg.git
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63 lines
2.1 KiB
GLSL
63 lines
2.1 KiB
GLSL
/*
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* Copyright (c) 2021-2022 Wu Jianhua <jianhua.wu@intel.com>
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* Copyright (c) 2026 Lynne <dev@lynne.ee>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma shader_stage(compute)
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#extension GL_EXT_shader_image_load_formatted : require
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#extension GL_EXT_scalar_block_layout : require
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#extension GL_EXT_nonuniform_qualifier : require
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layout (local_size_x_id = 253, local_size_y_id = 254, local_size_z_id = 255) in;
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layout (set = 0, binding = 0) uniform readonly image2D input_img[];
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layout (set = 0, binding = 1) uniform writeonly image2D output_img[];
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layout (set = 1, binding = 0, scalar) readonly buffer kernel_buf {
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float kernel[];
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};
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layout (push_constant, scalar) uniform pushConstants {
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int planes;
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};
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#define P_IDX nonuniformEXT(gl_WorkGroupID.z)
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void main()
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{
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if (!bool(planes & (1 << gl_WorkGroupID.z)))
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return;
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ivec2 pos = ivec2(gl_GlobalInvocationID.xy);
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ivec2 size = imageSize(input_img[P_IDX]);
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if (any(greaterThanEqual(pos, size)))
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return;
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vec4 sum = imageLoad(input_img[P_IDX], pos) * kernel[0];
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for(int i = 1; i < kernel.length(); i++) {
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ivec2 offs = gl_WorkGroupSize.x > gl_WorkGroupSize.y ? ivec2(i, 0) :
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ivec2(0, i);
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sum += imageLoad(input_img[P_IDX], pos + offs) * kernel[i];
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sum += imageLoad(input_img[P_IDX], pos - offs) * kernel[i];
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}
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imageStore(output_img[P_IDX], pos, sum);
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}
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