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

   1 /*
   2  * Copyright (c) 2000, 2001 Fabrice Bellard
   3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "pixels.h"
  23
  24 #define DEF_HPEL(OPNAME, OP)                                            \
  25 static inline void FUNC(OPNAME ## _pixels8_l2)(uint8_t *dst,            \
  26                                                const uint8_t *src1,     \
  27                                                const uint8_t *src2,     \
  28                                                int dst_stride,          \
  29                                                int src_stride1,         \
  30                                                int src_stride2,         \
  31                                                int h)                   \
  32 {                                                                       \
  33     int i;                                                              \
  34     for (i = 0; i < h; i++) {                                           \
  35         pixel4 a, b;                                                    \
  36         a = AV_RN4P(&src1[i * src_stride1]);                            \
  37         b = AV_RN4P(&src2[i * src_stride2]);                            \
  38         OP(*((pixel4 *) &dst[i * dst_stride]), rnd_avg_pixel4(a, b));   \
  39         a = AV_RN4P(&src1[i * src_stride1 + 4 * sizeof(pixel)]);        \
  40         b = AV_RN4P(&src2[i * src_stride2 + 4 * sizeof(pixel)]);        \
  41         OP(*((pixel4 *) &dst[i * dst_stride + 4 * sizeof(pixel)]),      \
  42            rnd_avg_pixel4(a, b));                                       \
  43     }                                                                   \
  44 }                                                                       \
  45                                                                         \
  46 static inline void FUNC(OPNAME ## _pixels4_l2)(uint8_t *dst,            \
  47                                                const uint8_t *src1,     \
  48                                                const uint8_t *src2,     \
  49                                                int dst_stride,          \
  50                                                int src_stride1,         \
  51                                                int src_stride2,         \
  52                                                int h)                   \
  53 {                                                                       \
  54     int i;                                                              \
  55     for (i = 0; i < h; i++) {                                           \
  56         pixel4 a, b;                                                    \
  57         a = AV_RN4P(&src1[i * src_stride1]);                            \
  58         b = AV_RN4P(&src2[i * src_stride2]);                            \
  59         OP(*((pixel4 *) &dst[i * dst_stride]), rnd_avg_pixel4(a, b));   \
  60     }                                                                   \
  61 }                                                                       \
  62                                                                         \
  63 static inline void FUNC(OPNAME ## _pixels2_l2)(uint8_t *dst,            \
  64                                                const uint8_t *src1,     \
  65                                                const uint8_t *src2,     \
  66                                                int dst_stride,          \
  67                                                int src_stride1,         \
  68                                                int src_stride2,         \
  69                                                int h)                   \
  70 {                                                                       \
  71     int i;                                                              \
  72     for (i = 0; i < h; i++) {                                           \
  73         pixel4 a, b;                                                    \
  74         a = AV_RN2P(&src1[i * src_stride1]);                            \
  75         b = AV_RN2P(&src2[i * src_stride2]);                            \
  76         OP(*((pixel2 *) &dst[i * dst_stride]), rnd_avg_pixel4(a, b));   \
  77     }                                                                   \
  78 }                                                                       \
  79                                                                         \
  80 static inline void FUNC(OPNAME ## _pixels16_l2)(uint8_t *dst,           \
  81                                                 const uint8_t *src1,    \
  82                                                 const uint8_t *src2,    \
  83                                                 int dst_stride,         \
  84                                                 int src_stride1,        \
  85                                                 int src_stride2,        \
  86                                                 int h)                  \
  87 {                                                                       \
  88     FUNC(OPNAME ## _pixels8_l2)(dst, src1, src2, dst_stride,            \
  89                                 src_stride1, src_stride2, h);           \
  90     FUNC(OPNAME ## _pixels8_l2)(dst  + 8 * sizeof(pixel),               \
  91                                 src1 + 8 * sizeof(pixel),               \
  92                                 src2 + 8 * sizeof(pixel),               \
  93                                 dst_stride, src_stride1,                \
  94                                 src_stride2, h);                        \
  95 }                                                                       \
  96
  97 #define op_avg(a, b) a = rnd_avg_pixel4(a, b)
  98 #define op_put(a, b) a = b
  99 DEF_HPEL(avg, op_avg)
 100 DEF_HPEL(put, op_put)
 101 #undef op_avg
 102 #undef op_put