Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2001-2003 BERO |
||
| 3 | * Copyright (c) 2011 Oskar Arvidsson |
||
| 4 | * |
||
| 5 | * This file is part of FFmpeg. |
||
| 6 | * |
||
| 7 | * FFmpeg is free software; you can redistribute it and/or |
||
| 8 | * modify it under the terms of the GNU Lesser General Public |
||
| 9 | * License as published by the Free Software Foundation; either |
||
| 10 | * version 2.1 of the License, or (at your option) any later version. |
||
| 11 | * |
||
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
| 15 | * Lesser General Public License for more details. |
||
| 16 | * |
||
| 17 | * You should have received a copy of the GNU Lesser General Public |
||
| 18 | * License along with FFmpeg; if not, write to the Free Software |
||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||
| 20 | */ |
||
| 21 | |||
| 22 | #ifndef AVCODEC_RND_AVG_H |
||
| 23 | #define AVCODEC_RND_AVG_H |
||
| 24 | |||
| 25 | #include |
||
| 26 | #include |
||
| 27 | |||
| 28 | #define CALL_2X_PIXELS(a, b, n)\ |
||
| 29 | static void a(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\ |
||
| 30 | b(block , pixels , line_size, h);\ |
||
| 31 | b(block+n, pixels+n, line_size, h);\ |
||
| 32 | } |
||
| 33 | |||
| 34 | #define BYTE_VEC32(c) ((c)*0x01010101UL) |
||
| 35 | #define BYTE_VEC64(c) ((c)*0x0001000100010001UL) |
||
| 36 | |||
| 37 | static inline uint32_t rnd_avg32(uint32_t a, uint32_t b) |
||
| 38 | { |
||
| 39 | return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1); |
||
| 40 | } |
||
| 41 | |||
| 42 | static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b) |
||
| 43 | { |
||
| 44 | return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1); |
||
| 45 | } |
||
| 46 | |||
| 47 | static inline uint64_t rnd_avg64(uint64_t a, uint64_t b) |
||
| 48 | { |
||
| 49 | return (a | b) - (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1); |
||
| 50 | } |
||
| 51 | |||
| 52 | static inline uint64_t no_rnd_avg64(uint64_t a, uint64_t b) |
||
| 53 | { |
||
| 54 | return (a & b) + (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1); |
||
| 55 | } |
||
| 56 | |||
| 57 | #endif /* AVCODEC_RND_AVG_H */ |