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FFmpeg/libavcodec/bit_depth_template.c

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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. #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 INIT_CLIP

  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. #   define INIT_CLIP

  57. #   define no_rnd_avg_pixel4 no_rnd_avg64

  58. #   define    rnd_avg_pixel4    rnd_avg64

  59. #   define AV_RN2P  AV_RN32

  60. #   define AV_RN4P  AV_RN64

  61. #   define AV_RN4PA AV_RN64A

  62. #   define AV_WN2P  AV_WN32

  63. #   define AV_WN4P  AV_WN64

  64. #   define AV_WN4PA AV_WN64A

  65. #   define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)

  66. 

  67. #   define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)

  68. #   define CLIP(a)          av_clip_uintp2(a, BIT_DEPTH)

  69. #else

  70. #   define pixel  uint8_t

  71. #   define pixel2 uint16_t

  72. #   define pixel4 uint32_t

  73. #   define dctcoef int16_t

  74. 

  75. #   define INIT_CLIP

  76. #   define no_rnd_avg_pixel4 no_rnd_avg32

  77. #   define    rnd_avg_pixel4    rnd_avg32

  78. #   define AV_RN2P  AV_RN16

  79. #   define AV_RN4P  AV_RN32

  80. #   define AV_RN4PA AV_RN32A

  81. #   define AV_WN2P  AV_WN16

  82. #   define AV_WN4P  AV_WN32

  83. #   define AV_WN4PA AV_WN32A

  84. #   define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)

  85. 

  86. #   define av_clip_pixel(a) av_clip_uint8(a)

  87. #   define CLIP(a) av_clip_uint8(a)

  88. #endif

  89. 

  90. #define FUNC3(a, b, c)  a ## _ ## b ## c

  91. #define FUNC2(a, b, c)  FUNC3(a, b, c)

  92. #define FUNC(a)  FUNC2(a, BIT_DEPTH,)

  93. #define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)