FFmpeg
pixels.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_PIXELS_H
20 #define AVCODEC_PIXELS_H
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 /* pixel operations */
26 #define CALL_2X_PIXELS_MACRO(STATIC, a, b, n) \
27 STATIC void a(uint8_t *block, const uint8_t *pixels, \
28  ptrdiff_t line_size, int h) \
29 { \
30  b(block, pixels, line_size, h); \
31  b(block + n, pixels + n, line_size, h); \
32 }
33 
34 #define CALL_2X_PIXELS(a, b, n) CALL_2X_PIXELS_MACRO(static, a, b, n)
35 #define CALL_2X_PIXELS_EXPORT(a, b, n) CALL_2X_PIXELS_MACRO(, a, b, n)
36 
37 #endif /* AVCODEC_PIXELS_H */