git.sesse.net Git - ffmpeg/blob - libavcodec/pel_template.c

   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 #include <stddef.h>
  20 #include <stdint.h>
  21
  22 #include "libavutil/intreadwrite.h"
  23 #include "pixels.h"
  24 #include "rnd_avg.h"
  25
  26 #include "bit_depth_template.c"
  27
  28 #define DEF_PEL(OPNAME, OP)                                             \
  29 static inline void FUNCC(OPNAME ## _pixels2)(uint8_t *block,            \
  30                                              const uint8_t *pixels,     \
  31                                              ptrdiff_t line_size,       \
  32                                              int h)                     \
  33 {                                                                       \
  34     int i;                                                              \
  35     for (i = 0; i < h; i++) {                                           \
  36         OP(*((pixel2 *) block), AV_RN2P(pixels));                       \
  37         pixels += line_size;                                            \
  38         block  += line_size;                                            \
  39     }                                                                   \
  40 }                                                                       \
  41                                                                         \
  42 static inline void FUNCC(OPNAME ## _pixels4)(uint8_t *block,            \
  43                                              const uint8_t *pixels,     \
  44                                              ptrdiff_t line_size,       \
  45                                              int h)                     \
  46 {                                                                       \
  47     int i;                                                              \
  48     for (i = 0; i < h; i++) {                                           \
  49         OP(*((pixel4 *) block), AV_RN4P(pixels));                       \
  50         pixels += line_size;                                            \
  51         block  += line_size;                                            \
  52     }                                                                   \
  53 }                                                                       \
  54                                                                         \
  55 static inline void FUNCC(OPNAME ## _pixels8)(uint8_t *block,            \
  56                                              const uint8_t *pixels,     \
  57                                              ptrdiff_t line_size,       \
  58                                              int h)                     \
  59 {                                                                       \
  60     int i;                                                              \
  61     for (i = 0; i < h; i++) {                                           \
  62         OP(*((pixel4 *) block), AV_RN4P(pixels));                       \
  63         OP(*((pixel4 *) (block + 4 * sizeof(pixel))),                   \
  64            AV_RN4P(pixels + 4 * sizeof(pixel)));                        \
  65         pixels += line_size;                                            \
  66         block  += line_size;                                            \
  67     }                                                                   \
  68 }                                                                       \
  69                                                                         \
  70 CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16),                              \
  71                FUNCC(OPNAME ## _pixels8),                               \
  72                8 * sizeof(pixel))
  73
  74 #define op_avg(a, b) a = rnd_avg_pixel4(a, b)
  75 #define op_put(a, b) a = b
  76
  77 DEF_PEL(avg, op_avg)
  78 DEF_PEL(put, op_put)
  79 #undef op_avg
  80 #undef op_put