libavcodec/bit_depth_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 "mathops.h"
  20 #include "rnd_avg.h"
  21 #include "libavutil/intreadwrite.h"
  22
  23 #ifndef BIT_DEPTH
  24 #define BIT_DEPTH 8
  25 #endif
  26
  27 #ifdef AVCODEC_BIT_DEPTH_TEMPLATE_C
  28 #   undef pixel
  29 #   undef pixel2
  30 #   undef pixel4
  31 #   undef dctcoef
  32 #   undef idctin
  33 #   undef no_rnd_avg_pixel4
  34 #   undef rnd_avg_pixel4
  35 #   undef AV_RN2P
  36 #   undef AV_RN4P
  37 #   undef AV_RN4PA
  38 #   undef AV_WN2P
  39 #   undef AV_WN4P
  40 #   undef AV_WN4PA
  41 #   undef CLIP
  42 #   undef FUNC
  43 #   undef FUNCC
  44 #   undef av_clip_pixel
  45 #   undef PIXEL_SPLAT_X4
  46 #else
  47 #   define AVCODEC_BIT_DEPTH_TEMPLATE_C
  48 #endif
  49
  50 #if BIT_DEPTH > 8
  51 #   define pixel  uint16_t
  52 #   define pixel2 uint32_t
  53 #   define pixel4 uint64_t
  54 #   define dctcoef int32_t
  55
  56 #ifdef IN_IDCT_DEPTH
  57 #if IN_IDCT_DEPTH == 32
  58 #   define idctin int32_t
  59 #else
  60 #   define idctin int16_t
  61 #endif
  62 #else
  63 #   define idctin int16_t
  64 #endif
  65
  66 #   define no_rnd_avg_pixel4 no_rnd_avg64
  67 #   define    rnd_avg_pixel4    rnd_avg64
  68 #   define AV_RN2P  AV_RN32
  69 #   define AV_RN4P  AV_RN64
  70 #   define AV_RN4PA AV_RN64A
  71 #   define AV_WN2P  AV_WN32
  72 #   define AV_WN4P  AV_WN64
  73 #   define AV_WN4PA AV_WN64A
  74 #   define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)
  75
  76 #   define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)
  77 #   define CLIP(a)          av_clip_uintp2(a, BIT_DEPTH)
  78 #else
  79 #   define pixel  uint8_t
  80 #   define pixel2 uint16_t
  81 #   define pixel4 uint32_t
  82 #   define dctcoef int16_t
  83 #   define idctin  int16_t
  84
  85 #   define no_rnd_avg_pixel4 no_rnd_avg32
  86 #   define    rnd_avg_pixel4    rnd_avg32
  87 #   define AV_RN2P  AV_RN16
  88 #   define AV_RN4P  AV_RN32
  89 #   define AV_RN4PA AV_RN32A
  90 #   define AV_WN2P  AV_WN16
  91 #   define AV_WN4P  AV_WN32
  92 #   define AV_WN4PA AV_WN32A
  93 #   define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)
  94
  95 #   define av_clip_pixel(a) av_clip_uint8(a)
  96 #   define CLIP(a) av_clip_uint8(a)
  97 #endif
  98
  99 #define FUNC3(a, b, c)  a ## _ ## b ##  c
 100 #define FUNC2(a, b, c)  FUNC3(a, b, c)
 101 #define FUNC(a)  FUNC2(a, BIT_DEPTH,)
 102 #define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)
 103 #define FUNC4(a, b, c)  a ## _int ## b ## _ ## c ## bit
 104 #define FUNC5(a, b, c)  FUNC4(a, b, c)
 105 #define FUNC6(a)  FUNC5(a, IN_IDCT_DEPTH, BIT_DEPTH)