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56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
/*
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* Copyright (c) 2025 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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TYPE read_data(uint off)
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{
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#ifdef BIG_ENDIAN
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return TYPE_REVERSE(data[off]);
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#else
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return data[off];
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#endif
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}
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void main(void)
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{
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ivec2 pos = ivec2(gl_GlobalInvocationID.xy);
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if (!IS_WITHIN(pos, imageSize(dst[0])))
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return;
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uint linesize;
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linesize = align(imageSize(dst[0]).x*BITS_PER_COMP*COMPONENTS, 32);
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linesize >>= BITS_LOG2;
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uint offs = pos.y*linesize + pos.x*COMPONENTS;
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#if NB_IMAGES == 1
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TYPE_VEC val;
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for (int i = 0; i < COMPONENTS; i++)
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val[i] = read_data(offs + i);
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val >>= SHIFT;
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imageStore(dst[0], pos, val);
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#else
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const ivec4 fmt_lut = ivec4(2, 0, 1, 3);
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for (int i = 0; i < COMPONENTS; i++) {
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TYPE val = read_data(offs + i);
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val >>= SHIFT;
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imageStore(dst[fmt_lut[i]], pos, TYPE_VEC(val));
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}
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#endif
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}
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