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57 lines
1.7 KiB
57 lines
1.7 KiB
/* |
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* Copyright (c) 2001-2003 BERO <bero@geocities.co.jp> |
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* Copyright (c) 2011 Oskar Arvidsson |
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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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#ifndef AVCODEC_RND_AVG_H |
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#define AVCODEC_RND_AVG_H |
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#include <stddef.h> |
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#include <stdint.h> |
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#define CALL_2X_PIXELS(a, b, n)\ |
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static void a(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\ |
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b(block , pixels , line_size, h);\ |
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b(block+n, pixels+n, line_size, h);\ |
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} |
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#define BYTE_VEC32(c) ((c)*0x01010101UL) |
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#define BYTE_VEC64(c) ((c)*0x0001000100010001UL) |
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static inline uint32_t rnd_avg32(uint32_t a, uint32_t b) |
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{ |
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return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1); |
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} |
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static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b) |
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{ |
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return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1); |
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} |
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static inline uint64_t rnd_avg64(uint64_t a, uint64_t b) |
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{ |
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return (a | b) - (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1); |
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} |
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static inline uint64_t no_rnd_avg64(uint64_t a, uint64_t b) |
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{ |
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return (a & b) + (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1); |
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} |
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#endif /* AVCODEC_RND_AVG_H */
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