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FFmpeg/libswscale/output.c

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  1. /*

  2.  * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>

  3.  *

  4.  * This file is part of Libav.

  5.  *

  6.  * Libav is free software; you can redistribute it and/or

  7.  * modify it under the terms of the GNU Lesser General Public

  8.  * License as published by the Free Software Foundation; either

  9.  * version 2.1 of the License, or (at your option) any later version.

  10.  *

  11.  * Libav is distributed in the hope that it will be useful,

  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  14.  * Lesser General Public License for more details.

  15.  *

  16.  * You should have received a copy of the GNU Lesser General Public

  17.  * License along with Libav; if not, write to the Free Software

  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  19.  */

  20. 

  21. #include <math.h>

  22. #include <stdint.h>

  23. #include <stdio.h>

  24. #include <string.h>

  25. 

  26. #include "libavutil/attributes.h"

  27. #include "libavutil/avutil.h"

  28. #include "libavutil/bswap.h"

  29. #include "libavutil/cpu.h"

  30. #include "libavutil/intreadwrite.h"

  31. #include "libavutil/mathematics.h"

  32. #include "libavutil/pixdesc.h"

  33. #include "config.h"

  34. #include "rgb2rgb.h"

  35. #include "swscale.h"

  36. #include "swscale_internal.h"

  37. 

  38. DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4)[2][8]={

  39. {  1,   3,   1,   3,   1,   3,   1,   3, },

  40. {  2,   0,   2,   0,   2,   0,   2,   0, },

  41. };

  42. 

  43. DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8)[2][8]={

  44. {  6,   2,   6,   2,   6,   2,   6,   2, },

  45. {  0,   4,   0,   4,   0,   4,   0,   4, },

  46. };

  47. 

  48. DECLARE_ALIGNED(8, const uint8_t, ff_dither_4x4_16)[4][8] = {

  49. {  8,   4,  11,   7,   8,   4,  11,   7, },

  50. {  2,  14,   1,  13,   2,  14,   1,  13, },

  51. { 10,   6,   9,   5,  10,   6,   9,   5, },

  52. {  0,  12,   3,  15,   0,  12,   3,  15, },

  53. };

  54. 

  55. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_32)[8][8] = {

  56. { 17,   9,  23,  15,  16,   8,  22,  14, },

  57. {  5,  29,   3,  27,   4,  28,   2,  26, },

  58. { 21,  13,  19,  11,  20,  12,  18,  10, },

  59. {  0,  24,   6,  30,   1,  25,   7,  31, },

  60. { 16,   8,  22,  14,  17,   9,  23,  15, },

  61. {  4,  28,   2,  26,   5,  29,   3,  27, },

  62. { 20,  12,  18,  10,  21,  13,  19,  11, },

  63. {  1,  25,   7,  31,   0,  24,   6,  30, },

  64. };

  65. 

  66. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_73)[8][8] = {

  67. {  0,  55,  14,  68,   3,  58,  17,  72, },

  68. { 37,  18,  50,  32,  40,  22,  54,  35, },

  69. {  9,  64,   5,  59,  13,  67,   8,  63, },

  70. { 46,  27,  41,  23,  49,  31,  44,  26, },

  71. {  2,  57,  16,  71,   1,  56,  15,  70, },

  72. { 39,  21,  52,  34,  38,  19,  51,  33, },

  73. { 11,  66,   7,  62,  10,  65,   6,  60, },

  74. { 48,  30,  43,  25,  47,  29,  42,  24, },

  75. };

  76. 

  77. #if 1

  78. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[8][8] = {

  79. {117,  62, 158, 103, 113,  58, 155, 100, },

  80. { 34, 199,  21, 186,  31, 196,  17, 182, },

  81. {144,  89, 131,  76, 141,  86, 127,  72, },

  82. {  0, 165,  41, 206,  10, 175,  52, 217, },

  83. {110,  55, 151,  96, 120,  65, 162, 107, },

  84. { 28, 193,  14, 179,  38, 203,  24, 189, },

  85. {138,  83, 124,  69, 148,  93, 134,  79, },

  86. {  7, 172,  48, 213,   3, 168,  45, 210, },

  87. };

  88. #elif 1

  89. // tries to correct a gamma of 1.5

  90. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[8][8] = {

  91. {  0, 143,  18, 200,   2, 156,  25, 215, },

  92. { 78,  28, 125,  64,  89,  36, 138,  74, },

  93. { 10, 180,   3, 161,  16, 195,   8, 175, },

  94. {109,  51,  93,  38, 121,  60, 105,  47, },

  95. {  1, 152,  23, 210,   0, 147,  20, 205, },

  96. { 85,  33, 134,  71,  81,  30, 130,  67, },

  97. { 14, 190,   6, 171,  12, 185,   5, 166, },

  98. {117,  57, 101,  44, 113,  54,  97,  41, },

  99. };

  100. #elif 1

  101. // tries to correct a gamma of 2.0

  102. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[8][8] = {

  103. {  0, 124,   8, 193,   0, 140,  12, 213, },

  104. { 55,  14, 104,  42,  66,  19, 119,  52, },

  105. {  3, 168,   1, 145,   6, 187,   3, 162, },

  106. { 86,  31,  70,  21,  99,  39,  82,  28, },

  107. {  0, 134,  11, 206,   0, 129,   9, 200, },

  108. { 62,  17, 114,  48,  58,  16, 109,  45, },

  109. {  5, 181,   2, 157,   4, 175,   1, 151, },

  110. { 95,  36,  78,  26,  90,  34,  74,  24, },

  111. };

  112. #else

  113. // tries to correct a gamma of 2.5

  114. DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[8][8] = {

  115. {  0, 107,   3, 187,   0, 125,   6, 212, },

  116. { 39,   7,  86,  28,  49,  11, 102,  36, },

  117. {  1, 158,   0, 131,   3, 180,   1, 151, },

  118. { 68,  19,  52,  12,  81,  25,  64,  17, },

  119. {  0, 119,   5, 203,   0, 113,   4, 195, },

  120. { 45,   9,  96,  33,  42,   8,  91,  30, },

  121. {  2, 172,   1, 144,   2, 165,   0, 137, },

  122. { 77,  23,  60,  15,  72,  21,  56,  14, },

  123. };

  124. #endif

  125. 

  126. #define output_pixel(pos, val, bias, signedness) \

  127.     if (big_endian) { \

  128.         AV_WB16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \

  129.     } else { \

  130.         AV_WL16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \

  131.     }

  132. 

  133. static av_always_inline void

  134. yuv2plane1_16_c_template(const int32_t *src, uint16_t *dest, int dstW,

  135.                          int big_endian, int output_bits)

  136. {

  137.     int i;

  138.     int shift = 19 - output_bits;

  139. 

  140.     for (i = 0; i < dstW; i++) {

  141.         int val = src[i] + (1 << (shift - 1));

  142.         output_pixel(&dest[i], val, 0, uint);

  143.     }

  144. }

  145. 

  146. static av_always_inline void

  147. yuv2planeX_16_c_template(const int16_t *filter, int filterSize,

  148.                          const int32_t **src, uint16_t *dest, int dstW,

  149.                          int big_endian, int output_bits)

  150. {

  151.     int i;

  152.     int shift = 15 + 16 - output_bits;

  153. 

  154.     for (i = 0; i < dstW; i++) {

  155.         int val = 1 << (30-output_bits);

  156.         int j;

  157. 

  158.         /* range of val is [0,0x7FFFFFFF], so 31 bits, but with lanczos/spline

  159.          * filters (or anything with negative coeffs, the range can be slightly

  160.          * wider in both directions. To account for this overflow, we subtract

  161.          * a constant so it always fits in the signed range (assuming a

  162.          * reasonable filterSize), and re-add that at the end. */

  163.         val -= 0x40000000;

  164.         for (j = 0; j < filterSize; j++)

  165.             val += src[j][i] * filter[j];

  166. 

  167.         output_pixel(&dest[i], val, 0x8000, int);

  168.     }

  169. }

  170. 

  171. #undef output_pixel

  172. 

  173. #define output_pixel(pos, val) \

  174.     if (big_endian) { \

  175.         AV_WB16(pos, av_clip_uintp2(val >> shift, output_bits)); \

  176.     } else { \

  177.         AV_WL16(pos, av_clip_uintp2(val >> shift, output_bits)); \

  178.     }

  179. 

  180. static av_always_inline void

  181. yuv2plane1_10_c_template(const int16_t *src, uint16_t *dest, int dstW,

  182.                          int big_endian, int output_bits)

  183. {

  184.     int i;

  185.     int shift = 15 - output_bits;

  186. 

  187.     for (i = 0; i < dstW; i++) {

  188.         int val = src[i] + (1 << (shift - 1));

  189.         output_pixel(&dest[i], val);

  190.     }

  191. }

  192. 

  193. static av_always_inline void

  194. yuv2planeX_10_c_template(const int16_t *filter, int filterSize,

  195.                          const int16_t **src, uint16_t *dest, int dstW,

  196.                          int big_endian, int output_bits)

  197. {

  198.     int i;

  199.     int shift = 11 + 16 - output_bits;

  200. 

  201.     for (i = 0; i < dstW; i++) {

  202.         int val = 1 << (26-output_bits);

  203.         int j;

  204. 

  205.         for (j = 0; j < filterSize; j++)

  206.             val += src[j][i] * filter[j];

  207. 

  208.         output_pixel(&dest[i], val);

  209.     }

  210. }

  211. 

  212. #undef output_pixel

  213. 

  214. #define yuv2NBPS(bits, BE_LE, is_be, template_size, typeX_t) \

  215. static void yuv2plane1_ ## bits ## BE_LE ## _c(const int16_t *src, \

  216.                               uint8_t *dest, int dstW, \

  217.                               const uint8_t *dither, int offset)\

  218. { \

  219.     yuv2plane1_ ## template_size ## _c_template((const typeX_t *) src, \

  220.                          (uint16_t *) dest, dstW, is_be, bits); \

  221. }\

  222. static void yuv2planeX_ ## bits ## BE_LE ## _c(const int16_t *filter, int filterSize, \

  223.                               const int16_t **src, uint8_t *dest, int dstW, \

  224.                               const uint8_t *dither, int offset)\

  225. { \

  226.     yuv2planeX_## template_size ## _c_template(filter, \

  227.                          filterSize, (const typeX_t **) src, \

  228.                          (uint16_t *) dest, dstW, is_be, bits); \

  229. }

  230. yuv2NBPS( 9, BE, 1, 10, int16_t)

  231. yuv2NBPS( 9, LE, 0, 10, int16_t)

  232. yuv2NBPS(10, BE, 1, 10, int16_t)

  233. yuv2NBPS(10, LE, 0, 10, int16_t)

  234. yuv2NBPS(12, BE, 1, 10, int16_t)

  235. yuv2NBPS(12, LE, 0, 10, int16_t)

  236. yuv2NBPS(16, BE, 1, 16, int32_t)

  237. yuv2NBPS(16, LE, 0, 16, int32_t)

  238. 

  239. static void yuv2planeX_8_c(const int16_t *filter, int filterSize,

  240.                            const int16_t **src, uint8_t *dest, int dstW,

  241.                            const uint8_t *dither, int offset)

  242. {

  243.     int i;

  244.     for (i=0; i<dstW; i++) {

  245.         int val = dither[(i + offset) & 7] << 12;

  246.         int j;

  247.         for (j=0; j<filterSize; j++)

  248.             val += src[j][i] * filter[j];

  249. 

  250.         dest[i]= av_clip_uint8(val>>19);

  251.     }

  252. }

  253. 

  254. static void yuv2plane1_8_c(const int16_t *src, uint8_t *dest, int dstW,

  255.                            const uint8_t *dither, int offset)

  256. {

  257.     int i;

  258.     for (i=0; i<dstW; i++) {

  259.         int val = (src[i] + dither[(i + offset) & 7]) >> 7;

  260.         dest[i]= av_clip_uint8(val);

  261.     }

  262. }

  263. 

  264. static void yuv2nv12cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterSize,

  265.                         const int16_t **chrUSrc, const int16_t **chrVSrc,

  266.                         uint8_t *dest, int chrDstW)

  267. {

  268.     enum AVPixelFormat dstFormat = c->dstFormat;

  269.     const uint8_t *chrDither = c->chrDither8;

  270.     int i;

  271. 

  272.     if (dstFormat == AV_PIX_FMT_NV12)

  273.         for (i=0; i<chrDstW; i++) {

  274.             int u = chrDither[i & 7] << 12;

  275.             int v = chrDither[(i + 3) & 7] << 12;

  276.             int j;

  277.             for (j=0; j<chrFilterSize; j++) {

  278.                 u += chrUSrc[j][i] * chrFilter[j];

  279.                 v += chrVSrc[j][i] * chrFilter[j];

  280.             }

  281. 

  282.             dest[2*i]= av_clip_uint8(u>>19);

  283.             dest[2*i+1]= av_clip_uint8(v>>19);

  284.         }

  285.     else

  286.         for (i=0; i<chrDstW; i++) {

  287.             int u = chrDither[i & 7] << 12;

  288.             int v = chrDither[(i + 3) & 7] << 12;

  289.             int j;

  290.             for (j=0; j<chrFilterSize; j++) {

  291.                 u += chrUSrc[j][i] * chrFilter[j];

  292.                 v += chrVSrc[j][i] * chrFilter[j];

  293.             }

  294. 

  295.             dest[2*i]= av_clip_uint8(v>>19);

  296.             dest[2*i+1]= av_clip_uint8(u>>19);

  297.         }

  298. }

  299. 

  300. #define accumulate_bit(acc, val) \

  301.     acc <<= 1; \

  302.     acc |= (val) >= (128 + 110)

  303. #define output_pixel(pos, acc) \

  304.     if (target == AV_PIX_FMT_MONOBLACK) { \

  305.         pos = acc; \

  306.     } else { \

  307.         pos = ~acc; \

  308.     }

  309. 

  310. static av_always_inline void

  311. yuv2mono_X_c_template(SwsContext *c, const int16_t *lumFilter,

  312.                       const int16_t **lumSrc, int lumFilterSize,

  313.                       const int16_t *chrFilter, const int16_t **chrUSrc,

  314.                       const int16_t **chrVSrc, int chrFilterSize,

  315.                       const int16_t **alpSrc, uint8_t *dest, int dstW,

  316.                       int y, enum AVPixelFormat target)

  317. {

  318.     const uint8_t * const d128 = ff_dither_8x8_220[y&7];

  319.     int i;

  320.     unsigned acc = 0;

  321. 

  322.     for (i = 0; i < dstW; i += 2) {

  323.         int j;

  324.         int Y1 = 1 << 18;

  325.         int Y2 = 1 << 18;

  326. 

  327.         for (j = 0; j < lumFilterSize; j++) {

  328.             Y1 += lumSrc[j][i]   * lumFilter[j];

  329.             Y2 += lumSrc[j][i+1] * lumFilter[j];

  330.         }

  331.         Y1 >>= 19;

  332.         Y2 >>= 19;

  333.         if ((Y1 | Y2) & 0x100) {

  334.             Y1 = av_clip_uint8(Y1);

  335.             Y2 = av_clip_uint8(Y2);

  336.         }

  337.         accumulate_bit(acc, Y1 + d128[(i + 0) & 7]);

  338.         accumulate_bit(acc, Y2 + d128[(i + 1) & 7]);

  339.         if ((i & 7) == 6) {

  340.             output_pixel(*dest++, acc);

  341.         }

  342.     }

  343. 

  344.     if (i & 6) {

  345.         output_pixel(*dest, acc);

  346.     }

  347. }

  348. 

  349. static av_always_inline void

  350. yuv2mono_2_c_template(SwsContext *c, const int16_t *buf[2],

  351.                       const int16_t *ubuf[2], const int16_t *vbuf[2],

  352.                       const int16_t *abuf[2], uint8_t *dest, int dstW,

  353.                       int yalpha, int uvalpha, int y,

  354.                       enum AVPixelFormat target)

  355. {

  356.     const int16_t *buf0  = buf[0],  *buf1  = buf[1];

  357.     const uint8_t * const d128 = ff_dither_8x8_220[y & 7];

  358.     int  yalpha1 = 4096 - yalpha;

  359.     int i;

  360. 

  361.     for (i = 0; i < dstW; i += 8) {

  362.         int Y, acc = 0;

  363. 

  364.         Y = (buf0[i + 0] * yalpha1 + buf1[i + 0] * yalpha) >> 19;

  365.         accumulate_bit(acc, Y + d128[0]);

  366.         Y = (buf0[i + 1] * yalpha1 + buf1[i + 1] * yalpha) >> 19;

  367.         accumulate_bit(acc, Y + d128[1]);

  368.         Y = (buf0[i + 2] * yalpha1 + buf1[i + 2] * yalpha) >> 19;

  369.         accumulate_bit(acc, Y + d128[2]);

  370.         Y = (buf0[i + 3] * yalpha1 + buf1[i + 3] * yalpha) >> 19;

  371.         accumulate_bit(acc, Y + d128[3]);

  372.         Y = (buf0[i + 4] * yalpha1 + buf1[i + 4] * yalpha) >> 19;

  373.         accumulate_bit(acc, Y + d128[4]);

  374.         Y = (buf0[i + 5] * yalpha1 + buf1[i + 5] * yalpha) >> 19;

  375.         accumulate_bit(acc, Y + d128[5]);

  376.         Y = (buf0[i + 6] * yalpha1 + buf1[i + 6] * yalpha) >> 19;

  377.         accumulate_bit(acc, Y + d128[6]);

  378.         Y = (buf0[i + 7] * yalpha1 + buf1[i + 7] * yalpha) >> 19;

  379.         accumulate_bit(acc, Y + d128[7]);

  380. 

  381.         output_pixel(*dest++, acc);

  382.     }

  383. }

  384. 

  385. static av_always_inline void

  386. yuv2mono_1_c_template(SwsContext *c, const int16_t *buf0,

  387.                       const int16_t *ubuf[2], const int16_t *vbuf[2],

  388.                       const int16_t *abuf0, uint8_t *dest, int dstW,

  389.                       int uvalpha, int y, enum AVPixelFormat target)

  390. {

  391.     const uint8_t * const d128 = ff_dither_8x8_220[y & 7];

  392.     int i;

  393. 

  394.     for (i = 0; i < dstW; i += 8) {

  395.         int acc = 0;

  396. 

  397.         accumulate_bit(acc, (buf0[i + 0] >> 7) + d128[0]);

  398.         accumulate_bit(acc, (buf0[i + 1] >> 7) + d128[1]);

  399.         accumulate_bit(acc, (buf0[i + 2] >> 7) + d128[2]);

  400.         accumulate_bit(acc, (buf0[i + 3] >> 7) + d128[3]);

  401.         accumulate_bit(acc, (buf0[i + 4] >> 7) + d128[4]);

  402.         accumulate_bit(acc, (buf0[i + 5] >> 7) + d128[5]);

  403.         accumulate_bit(acc, (buf0[i + 6] >> 7) + d128[6]);

  404.         accumulate_bit(acc, (buf0[i + 7] >> 7) + d128[7]);

  405. 

  406.         output_pixel(*dest++, acc);

  407.     }

  408. }

  409. 

  410. #undef output_pixel

  411. #undef accumulate_bit

  412. 

  413. #define YUV2PACKEDWRAPPER(name, base, ext, fmt) \

  414. static void name ## ext ## _X_c(SwsContext *c, const int16_t *lumFilter, \

  415.                                 const int16_t **lumSrc, int lumFilterSize, \

  416.                                 const int16_t *chrFilter, const int16_t **chrUSrc, \

  417.                                 const int16_t **chrVSrc, int chrFilterSize, \

  418.                                 const int16_t **alpSrc, uint8_t *dest, int dstW, \

  419.                                 int y) \

  420. { \

  421.     name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \

  422.                                   chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

  423.                                   alpSrc, dest, dstW, y, fmt); \

  424. } \

  425.  \

  426. static void name ## ext ## _2_c(SwsContext *c, const int16_t *buf[2], \

  427.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  428.                                 const int16_t *abuf[2], uint8_t *dest, int dstW, \

  429.                                 int yalpha, int uvalpha, int y) \

  430. { \

  431.     name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \

  432.                                   dest, dstW, yalpha, uvalpha, y, fmt); \

  433. } \

  434.  \

  435. static void name ## ext ## _1_c(SwsContext *c, const int16_t *buf0, \

  436.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  437.                                 const int16_t *abuf0, uint8_t *dest, int dstW, \

  438.                                 int uvalpha, int y) \

  439. { \

  440.     name ## base ## _1_c_template(c, buf0, ubuf, vbuf, \

  441.                                   abuf0, dest, dstW, uvalpha, \

  442.                                   y, fmt); \

  443. }

  444. 

  445. YUV2PACKEDWRAPPER(yuv2mono,, white, AV_PIX_FMT_MONOWHITE)

  446. YUV2PACKEDWRAPPER(yuv2mono,, black, AV_PIX_FMT_MONOBLACK)

  447. 

  448. #define output_pixels(pos, Y1, U, Y2, V) \

  449.     if (target == AV_PIX_FMT_YUYV422) { \

  450.         dest[pos + 0] = Y1; \

  451.         dest[pos + 1] = U;  \

  452.         dest[pos + 2] = Y2; \

  453.         dest[pos + 3] = V;  \

  454.     } else if (target == AV_PIX_FMT_YVYU422) { \

  455.         dest[pos + 0] = Y1; \

  456.         dest[pos + 1] = V;  \

  457.         dest[pos + 2] = Y2; \

  458.         dest[pos + 3] = U;  \

  459.     } else { /* AV_PIX_FMT_UYVY422 */ \

  460.         dest[pos + 0] = U;  \

  461.         dest[pos + 1] = Y1; \

  462.         dest[pos + 2] = V;  \

  463.         dest[pos + 3] = Y2; \

  464.     }

  465. 

  466. static av_always_inline void

  467. yuv2422_X_c_template(SwsContext *c, const int16_t *lumFilter,

  468.                      const int16_t **lumSrc, int lumFilterSize,

  469.                      const int16_t *chrFilter, const int16_t **chrUSrc,

  470.                      const int16_t **chrVSrc, int chrFilterSize,

  471.                      const int16_t **alpSrc, uint8_t *dest, int dstW,

  472.                      int y, enum AVPixelFormat target)

  473. {

  474.     int i;

  475. 

  476.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  477.         int j;

  478.         int Y1 = 1 << 18;

  479.         int Y2 = 1 << 18;

  480.         int U  = 1 << 18;

  481.         int V  = 1 << 18;

  482. 

  483.         for (j = 0; j < lumFilterSize; j++) {

  484.             Y1 += lumSrc[j][i * 2]     * lumFilter[j];

  485.             Y2 += lumSrc[j][i * 2 + 1] * lumFilter[j];

  486.         }

  487.         for (j = 0; j < chrFilterSize; j++) {

  488.             U += chrUSrc[j][i] * chrFilter[j];

  489.             V += chrVSrc[j][i] * chrFilter[j];

  490.         }

  491.         Y1 >>= 19;

  492.         Y2 >>= 19;

  493.         U  >>= 19;

  494.         V  >>= 19;

  495.         if ((Y1 | Y2 | U | V) & 0x100) {

  496.             Y1 = av_clip_uint8(Y1);

  497.             Y2 = av_clip_uint8(Y2);

  498.             U  = av_clip_uint8(U);

  499.             V  = av_clip_uint8(V);

  500.         }

  501.         output_pixels(4*i, Y1, U, Y2, V);

  502.     }

  503. }

  504. 

  505. static av_always_inline void

  506. yuv2422_2_c_template(SwsContext *c, const int16_t *buf[2],

  507.                      const int16_t *ubuf[2], const int16_t *vbuf[2],

  508.                      const int16_t *abuf[2], uint8_t *dest, int dstW,

  509.                      int yalpha, int uvalpha, int y,

  510.                      enum AVPixelFormat target)

  511. {

  512.     const int16_t *buf0  = buf[0],  *buf1  = buf[1],

  513.                   *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],

  514.                   *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];

  515.     int  yalpha1 = 4096 - yalpha;

  516.     int uvalpha1 = 4096 - uvalpha;

  517.     int i;

  518. 

  519.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  520.         int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha)  >> 19;

  521.         int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha)  >> 19;

  522.         int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha) >> 19;

  523.         int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha) >> 19;

  524. 

  525.         Y1 = av_clip_uint8(Y1);

  526.         Y2 = av_clip_uint8(Y2);

  527.         U  = av_clip_uint8(U);

  528.         V  = av_clip_uint8(V);

  529. 

  530.         output_pixels(i * 4, Y1, U, Y2, V);

  531.     }

  532. }

  533. 

  534. static av_always_inline void

  535. yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,

  536.                      const int16_t *ubuf[2], const int16_t *vbuf[2],

  537.                      const int16_t *abuf0, uint8_t *dest, int dstW,

  538.                      int uvalpha, int y, enum AVPixelFormat target)

  539. {

  540.     const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];

  541.     int i;

  542. 

  543.     if (uvalpha < 2048) {

  544.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  545.             int Y1 = buf0[i * 2]     >> 7;

  546.             int Y2 = buf0[i * 2 + 1] >> 7;

  547.             int U  = ubuf0[i]        >> 7;

  548.             int V  = vbuf0[i]        >> 7;

  549. 

  550.             Y1 = av_clip_uint8(Y1);

  551.             Y2 = av_clip_uint8(Y2);

  552.             U  = av_clip_uint8(U);

  553.             V  = av_clip_uint8(V);

  554. 

  555.             output_pixels(i * 4, Y1, U, Y2, V);

  556.         }

  557.     } else {

  558.         const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];

  559.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  560.             int Y1 =  buf0[i * 2]          >> 7;

  561.             int Y2 =  buf0[i * 2 + 1]      >> 7;

  562.             int U  = (ubuf0[i] + ubuf1[i]) >> 8;

  563.             int V  = (vbuf0[i] + vbuf1[i]) >> 8;

  564. 

  565.             Y1 = av_clip_uint8(Y1);

  566.             Y2 = av_clip_uint8(Y2);

  567.             U  = av_clip_uint8(U);

  568.             V  = av_clip_uint8(V);

  569. 

  570.             output_pixels(i * 4, Y1, U, Y2, V);

  571.         }

  572.     }

  573. }

  574. 

  575. #undef output_pixels

  576. 

  577. YUV2PACKEDWRAPPER(yuv2, 422, yuyv422, AV_PIX_FMT_YUYV422)

  578. YUV2PACKEDWRAPPER(yuv2, 422, yvyu422, AV_PIX_FMT_YVYU422)

  579. YUV2PACKEDWRAPPER(yuv2, 422, uyvy422, AV_PIX_FMT_UYVY422)

  580. 

  581. #define R_B ((target == AV_PIX_FMT_RGB48LE || target == AV_PIX_FMT_RGB48BE) ? R : B)

  582. #define B_R ((target == AV_PIX_FMT_RGB48LE || target == AV_PIX_FMT_RGB48BE) ? B : R)

  583. #define output_pixel(pos, val) \

  584.     if (isBE(target)) { \

  585.         AV_WB16(pos, val); \

  586.     } else { \

  587.         AV_WL16(pos, val); \

  588.     }

  589. 

  590. static av_always_inline void

  591. yuv2rgb48_X_c_template(SwsContext *c, const int16_t *lumFilter,

  592.                        const int32_t **lumSrc, int lumFilterSize,

  593.                        const int16_t *chrFilter, const int32_t **chrUSrc,

  594.                        const int32_t **chrVSrc, int chrFilterSize,

  595.                        const int32_t **alpSrc, uint16_t *dest, int dstW,

  596.                        int y, enum AVPixelFormat target)

  597. {

  598.     int i;

  599. 

  600.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  601.         int j;

  602.         int Y1 = -0x40000000;

  603.         int Y2 = -0x40000000;

  604.         int U  = -128 << 23; // 19

  605.         int V  = -128 << 23;

  606.         int R, G, B;

  607. 

  608.         for (j = 0; j < lumFilterSize; j++) {

  609.             Y1 += lumSrc[j][i * 2]     * lumFilter[j];

  610.             Y2 += lumSrc[j][i * 2 + 1] * lumFilter[j];

  611.         }

  612.         for (j = 0; j < chrFilterSize; j++) {

  613.             U += chrUSrc[j][i] * chrFilter[j];

  614.             V += chrVSrc[j][i] * chrFilter[j];

  615.         }

  616. 

  617.         // 8 bits: 12+15=27; 16 bits: 12+19=31

  618.         Y1 >>= 14; // 10

  619.         Y1 += 0x10000;

  620.         Y2 >>= 14;

  621.         Y2 += 0x10000;

  622.         U  >>= 14;

  623.         V  >>= 14;

  624. 

  625.         // 8 bits: 27 -> 17 bits, 16 bits: 31 - 14 = 17 bits

  626.         Y1 -= c->yuv2rgb_y_offset;

  627.         Y2 -= c->yuv2rgb_y_offset;

  628.         Y1 *= c->yuv2rgb_y_coeff;

  629.         Y2 *= c->yuv2rgb_y_coeff;

  630.         Y1 += 1 << 13; // 21

  631.         Y2 += 1 << 13;

  632.         // 8 bits: 17 + 13 bits = 30 bits, 16 bits: 17 + 13 bits = 30 bits

  633. 

  634.         R = V * c->yuv2rgb_v2r_coeff;

  635.         G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  636.         B =                            U * c->yuv2rgb_u2b_coeff;

  637. 

  638.         // 8 bits: 30 - 22 = 8 bits, 16 bits: 30 bits - 14 = 16 bits

  639.         output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);

  640.         output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);

  641.         output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);

  642.         output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);

  643.         output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);

  644.         output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);

  645.         dest += 6;

  646.     }

  647. }

  648. 

  649. static av_always_inline void

  650. yuv2rgb48_2_c_template(SwsContext *c, const int32_t *buf[2],

  651.                        const int32_t *ubuf[2], const int32_t *vbuf[2],

  652.                        const int32_t *abuf[2], uint16_t *dest, int dstW,

  653.                        int yalpha, int uvalpha, int y,

  654.                        enum AVPixelFormat target)

  655. {

  656.     const int32_t *buf0  = buf[0],  *buf1  = buf[1],

  657.                   *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],

  658.                   *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];

  659.     int  yalpha1 = 4096 - yalpha;

  660.     int uvalpha1 = 4096 - uvalpha;

  661.     int i;

  662. 

  663.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  664.         int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha) >> 14;

  665.         int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha) >> 14;

  666.         int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha + (-128 << 23)) >> 14;

  667.         int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha + (-128 << 23)) >> 14;

  668.         int R, G, B;

  669. 

  670.         Y1 -= c->yuv2rgb_y_offset;

  671.         Y2 -= c->yuv2rgb_y_offset;

  672.         Y1 *= c->yuv2rgb_y_coeff;

  673.         Y2 *= c->yuv2rgb_y_coeff;

  674.         Y1 += 1 << 13;

  675.         Y2 += 1 << 13;

  676. 

  677.         R = V * c->yuv2rgb_v2r_coeff;

  678.         G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  679.         B =                            U * c->yuv2rgb_u2b_coeff;

  680. 

  681.         output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);

  682.         output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);

  683.         output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);

  684.         output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);

  685.         output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);

  686.         output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);

  687.         dest += 6;

  688.     }

  689. }

  690. 

  691. static av_always_inline void

  692. yuv2rgb48_1_c_template(SwsContext *c, const int32_t *buf0,

  693.                        const int32_t *ubuf[2], const int32_t *vbuf[2],

  694.                        const int32_t *abuf0, uint16_t *dest, int dstW,

  695.                        int uvalpha, int y, enum AVPixelFormat target)

  696. {

  697.     const int32_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];

  698.     int i;

  699. 

  700.     if (uvalpha < 2048) {

  701.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  702.             int Y1 = (buf0[i * 2]    ) >> 2;

  703.             int Y2 = (buf0[i * 2 + 1]) >> 2;

  704.             int U  = (ubuf0[i] + (-128 << 11)) >> 2;

  705.             int V  = (vbuf0[i] + (-128 << 11)) >> 2;

  706.             int R, G, B;

  707. 

  708.             Y1 -= c->yuv2rgb_y_offset;

  709.             Y2 -= c->yuv2rgb_y_offset;

  710.             Y1 *= c->yuv2rgb_y_coeff;

  711.             Y2 *= c->yuv2rgb_y_coeff;

  712.             Y1 += 1 << 13;

  713.             Y2 += 1 << 13;

  714. 

  715.             R = V * c->yuv2rgb_v2r_coeff;

  716.             G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  717.             B =                            U * c->yuv2rgb_u2b_coeff;

  718. 

  719.             output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);

  720.             output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);

  721.             output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);

  722.             output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);

  723.             output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);

  724.             output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);

  725.             dest += 6;

  726.         }

  727.     } else {

  728.         const int32_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];

  729.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  730.             int Y1 = (buf0[i * 2]    ) >> 2;

  731.             int Y2 = (buf0[i * 2 + 1]) >> 2;

  732.             int U  = (ubuf0[i] + ubuf1[i] + (-128 << 12)) >> 3;

  733.             int V  = (vbuf0[i] + vbuf1[i] + (-128 << 12)) >> 3;

  734.             int R, G, B;

  735. 

  736.             Y1 -= c->yuv2rgb_y_offset;

  737.             Y2 -= c->yuv2rgb_y_offset;

  738.             Y1 *= c->yuv2rgb_y_coeff;

  739.             Y2 *= c->yuv2rgb_y_coeff;

  740.             Y1 += 1 << 13;

  741.             Y2 += 1 << 13;

  742. 

  743.             R = V * c->yuv2rgb_v2r_coeff;

  744.             G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  745.             B =                            U * c->yuv2rgb_u2b_coeff;

  746. 

  747.             output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);

  748.             output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);

  749.             output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);

  750.             output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);

  751.             output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);

  752.             output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);

  753.             dest += 6;

  754.         }

  755.     }

  756. }

  757. 

  758. #undef output_pixel

  759. #undef r_b

  760. #undef b_r

  761. 

  762. #define YUV2PACKED16WRAPPER(name, base, ext, fmt) \

  763. static void name ## ext ## _X_c(SwsContext *c, const int16_t *lumFilter, \

  764.                         const int16_t **_lumSrc, int lumFilterSize, \

  765.                         const int16_t *chrFilter, const int16_t **_chrUSrc, \

  766.                         const int16_t **_chrVSrc, int chrFilterSize, \

  767.                         const int16_t **_alpSrc, uint8_t *_dest, int dstW, \

  768.                         int y) \

  769. { \

  770.     const int32_t **lumSrc  = (const int32_t **) _lumSrc, \

  771.                   **chrUSrc = (const int32_t **) _chrUSrc, \

  772.                   **chrVSrc = (const int32_t **) _chrVSrc, \

  773.                   **alpSrc  = (const int32_t **) _alpSrc; \

  774.     uint16_t *dest = (uint16_t *) _dest; \

  775.     name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \

  776.                           chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

  777.                           alpSrc, dest, dstW, y, fmt); \

  778. } \

  779.  \

  780. static void name ## ext ## _2_c(SwsContext *c, const int16_t *_buf[2], \

  781.                         const int16_t *_ubuf[2], const int16_t *_vbuf[2], \

  782.                         const int16_t *_abuf[2], uint8_t *_dest, int dstW, \

  783.                         int yalpha, int uvalpha, int y) \

  784. { \

  785.     const int32_t **buf  = (const int32_t **) _buf, \

  786.                   **ubuf = (const int32_t **) _ubuf, \

  787.                   **vbuf = (const int32_t **) _vbuf, \

  788.                   **abuf = (const int32_t **) _abuf; \

  789.     uint16_t *dest = (uint16_t *) _dest; \

  790.     name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \

  791.                           dest, dstW, yalpha, uvalpha, y, fmt); \

  792. } \

  793.  \

  794. static void name ## ext ## _1_c(SwsContext *c, const int16_t *_buf0, \

  795.                         const int16_t *_ubuf[2], const int16_t *_vbuf[2], \

  796.                         const int16_t *_abuf0, uint8_t *_dest, int dstW, \

  797.                         int uvalpha, int y) \

  798. { \

  799.     const int32_t *buf0  = (const int32_t *)  _buf0, \

  800.                  **ubuf  = (const int32_t **) _ubuf, \

  801.                  **vbuf  = (const int32_t **) _vbuf, \

  802.                   *abuf0 = (const int32_t *)  _abuf0; \

  803.     uint16_t *dest = (uint16_t *) _dest; \

  804.     name ## base ## _1_c_template(c, buf0, ubuf, vbuf, abuf0, dest, \

  805.                                   dstW, uvalpha, y, fmt); \

  806. }

  807. 

  808. YUV2PACKED16WRAPPER(yuv2, rgb48, rgb48be, AV_PIX_FMT_RGB48BE)

  809. YUV2PACKED16WRAPPER(yuv2, rgb48, rgb48le, AV_PIX_FMT_RGB48LE)

  810. YUV2PACKED16WRAPPER(yuv2, rgb48, bgr48be, AV_PIX_FMT_BGR48BE)

  811. YUV2PACKED16WRAPPER(yuv2, rgb48, bgr48le, AV_PIX_FMT_BGR48LE)

  812. 

  813. /*

  814.  * Write out 2 RGB pixels in the target pixel format. This function takes a

  815.  * R/G/B LUT as generated by ff_yuv2rgb_c_init_tables(), which takes care of

  816.  * things like endianness conversion and shifting. The caller takes care of

  817.  * setting the correct offset in these tables from the chroma (U/V) values.

  818.  * This function then uses the luminance (Y1/Y2) values to write out the

  819.  * correct RGB values into the destination buffer.

  820.  */

  821. static av_always_inline void

  822. yuv2rgb_write(uint8_t *_dest, int i, unsigned Y1, unsigned Y2,

  823.               unsigned A1, unsigned A2,

  824.               const void *_r, const void *_g, const void *_b, int y,

  825.               enum AVPixelFormat target, int hasAlpha)

  826. {

  827.     if (target == AV_PIX_FMT_ARGB || target == AV_PIX_FMT_RGBA ||

  828.         target == AV_PIX_FMT_ABGR || target == AV_PIX_FMT_BGRA) {

  829.         uint32_t *dest = (uint32_t *) _dest;

  830.         const uint32_t *r = (const uint32_t *) _r;

  831.         const uint32_t *g = (const uint32_t *) _g;

  832.         const uint32_t *b = (const uint32_t *) _b;

  833. 

  834. #if CONFIG_SMALL

  835.         int sh = hasAlpha ? ((target == AV_PIX_FMT_RGB32_1 || target == AV_PIX_FMT_BGR32_1) ? 0 : 24) : 0;

  836. 

  837.         dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1] + (hasAlpha ? A1 << sh : 0);

  838.         dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2] + (hasAlpha ? A2 << sh : 0);

  839. #else

  840.         if (hasAlpha) {

  841.             int sh = (target == AV_PIX_FMT_RGB32_1 || target == AV_PIX_FMT_BGR32_1) ? 0 : 24;

  842. 

  843.             dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1] + (A1 << sh);

  844.             dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2] + (A2 << sh);

  845.         } else {

  846.             dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1];

  847.             dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2];

  848.         }

  849. #endif

  850.     } else if (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) {

  851.         uint8_t *dest = (uint8_t *) _dest;

  852.         const uint8_t *r = (const uint8_t *) _r;

  853.         const uint8_t *g = (const uint8_t *) _g;

  854.         const uint8_t *b = (const uint8_t *) _b;

  855. 

  856. #define r_b ((target == AV_PIX_FMT_RGB24) ? r : b)

  857. #define b_r ((target == AV_PIX_FMT_RGB24) ? b : r)

  858.         dest[i * 6 + 0] = r_b[Y1];

  859.         dest[i * 6 + 1] =   g[Y1];

  860.         dest[i * 6 + 2] = b_r[Y1];

  861.         dest[i * 6 + 3] = r_b[Y2];

  862.         dest[i * 6 + 4] =   g[Y2];

  863.         dest[i * 6 + 5] = b_r[Y2];

  864. #undef r_b

  865. #undef b_r

  866.     } else if (target == AV_PIX_FMT_RGB565 || target == AV_PIX_FMT_BGR565 ||

  867.                target == AV_PIX_FMT_RGB555 || target == AV_PIX_FMT_BGR555 ||

  868.                target == AV_PIX_FMT_RGB444 || target == AV_PIX_FMT_BGR444) {

  869.         uint16_t *dest = (uint16_t *) _dest;

  870.         const uint16_t *r = (const uint16_t *) _r;

  871.         const uint16_t *g = (const uint16_t *) _g;

  872.         const uint16_t *b = (const uint16_t *) _b;

  873.         int dr1, dg1, db1, dr2, dg2, db2;

  874. 

  875.         if (target == AV_PIX_FMT_RGB565 || target == AV_PIX_FMT_BGR565) {

  876.             dr1 = dither_2x2_8[ y & 1     ][0];

  877.             dg1 = dither_2x2_4[ y & 1     ][0];

  878.             db1 = dither_2x2_8[(y & 1) ^ 1][0];

  879.             dr2 = dither_2x2_8[ y & 1     ][1];

  880.             dg2 = dither_2x2_4[ y & 1     ][1];

  881.             db2 = dither_2x2_8[(y & 1) ^ 1][1];

  882.         } else if (target == AV_PIX_FMT_RGB555 || target == AV_PIX_FMT_BGR555) {

  883.             dr1 = dither_2x2_8[ y & 1     ][0];

  884.             dg1 = dither_2x2_8[ y & 1     ][1];

  885.             db1 = dither_2x2_8[(y & 1) ^ 1][0];

  886.             dr2 = dither_2x2_8[ y & 1     ][1];

  887.             dg2 = dither_2x2_8[ y & 1     ][0];

  888.             db2 = dither_2x2_8[(y & 1) ^ 1][1];

  889.         } else {

  890.             dr1 = ff_dither_4x4_16[ y & 3     ][0];

  891.             dg1 = ff_dither_4x4_16[ y & 3     ][1];

  892.             db1 = ff_dither_4x4_16[(y & 3) ^ 3][0];

  893.             dr2 = ff_dither_4x4_16[ y & 3     ][1];

  894.             dg2 = ff_dither_4x4_16[ y & 3     ][0];

  895.             db2 = ff_dither_4x4_16[(y & 3) ^ 3][1];

  896.         }

  897. 

  898.         dest[i * 2 + 0] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1];

  899.         dest[i * 2 + 1] = r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2];

  900.     } else /* 8/4 bits */ {

  901.         uint8_t *dest = (uint8_t *) _dest;

  902.         const uint8_t *r = (const uint8_t *) _r;

  903.         const uint8_t *g = (const uint8_t *) _g;

  904.         const uint8_t *b = (const uint8_t *) _b;

  905.         int dr1, dg1, db1, dr2, dg2, db2;

  906. 

  907.         if (target == AV_PIX_FMT_RGB8 || target == AV_PIX_FMT_BGR8) {

  908.             const uint8_t * const d64 = ff_dither_8x8_73[y & 7];

  909.             const uint8_t * const d32 = ff_dither_8x8_32[y & 7];

  910.             dr1 = dg1 = d32[(i * 2 + 0) & 7];

  911.             db1 =       d64[(i * 2 + 0) & 7];

  912.             dr2 = dg2 = d32[(i * 2 + 1) & 7];

  913.             db2 =       d64[(i * 2 + 1) & 7];

  914.         } else {

  915.             const uint8_t * const d64  = ff_dither_8x8_73 [y & 7];

  916.             const uint8_t * const d128 = ff_dither_8x8_220[y & 7];

  917.             dr1 = db1 = d128[(i * 2 + 0) & 7];

  918.             dg1 =        d64[(i * 2 + 0) & 7];

  919.             dr2 = db2 = d128[(i * 2 + 1) & 7];

  920.             dg2 =        d64[(i * 2 + 1) & 7];

  921.         }

  922. 

  923.         if (target == AV_PIX_FMT_RGB4 || target == AV_PIX_FMT_BGR4) {

  924.             dest[i] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1] +

  925.                     ((r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2]) << 4);

  926.         } else {

  927.             dest[i * 2 + 0] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1];

  928.             dest[i * 2 + 1] = r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2];

  929.         }

  930.     }

  931. }

  932. 

  933. static av_always_inline void

  934. yuv2rgb_X_c_template(SwsContext *c, const int16_t *lumFilter,

  935.                      const int16_t **lumSrc, int lumFilterSize,

  936.                      const int16_t *chrFilter, const int16_t **chrUSrc,

  937.                      const int16_t **chrVSrc, int chrFilterSize,

  938.                      const int16_t **alpSrc, uint8_t *dest, int dstW,

  939.                      int y, enum AVPixelFormat target, int hasAlpha)

  940. {

  941.     int i;

  942. 

  943.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  944.         int j, A1, A2;

  945.         int Y1 = 1 << 18;

  946.         int Y2 = 1 << 18;

  947.         int U  = 1 << 18;

  948.         int V  = 1 << 18;

  949.         const void *r, *g, *b;

  950. 

  951.         for (j = 0; j < lumFilterSize; j++) {

  952.             Y1 += lumSrc[j][i * 2]     * lumFilter[j];

  953.             Y2 += lumSrc[j][i * 2 + 1] * lumFilter[j];

  954.         }

  955.         for (j = 0; j < chrFilterSize; j++) {

  956.             U += chrUSrc[j][i] * chrFilter[j];

  957.             V += chrVSrc[j][i] * chrFilter[j];

  958.         }

  959.         Y1 >>= 19;

  960.         Y2 >>= 19;

  961.         U  >>= 19;

  962.         V  >>= 19;

  963.         if ((Y1 | Y2 | U | V) & 0x100) {

  964.             Y1 = av_clip_uint8(Y1);

  965.             Y2 = av_clip_uint8(Y2);

  966.             U  = av_clip_uint8(U);

  967.             V  = av_clip_uint8(V);

  968.         }

  969.         if (hasAlpha) {

  970.             A1 = 1 << 18;

  971.             A2 = 1 << 18;

  972.             for (j = 0; j < lumFilterSize; j++) {

  973.                 A1 += alpSrc[j][i * 2    ] * lumFilter[j];

  974.                 A2 += alpSrc[j][i * 2 + 1] * lumFilter[j];

  975.             }

  976.             A1 >>= 19;

  977.             A2 >>= 19;

  978.             if ((A1 | A2) & 0x100) {

  979.                 A1 = av_clip_uint8(A1);

  980.                 A2 = av_clip_uint8(A2);

  981.             }

  982.         }

  983. 

  984.         /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/

  985.         r =  c->table_rV[V];

  986.         g = (c->table_gU[U] + c->table_gV[V]);

  987.         b =  c->table_bU[U];

  988. 

  989.         yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  990.                       r, g, b, y, target, hasAlpha);

  991.     }

  992. }

  993. 

  994. static av_always_inline void

  995. yuv2rgb_2_c_template(SwsContext *c, const int16_t *buf[2],

  996.                      const int16_t *ubuf[2], const int16_t *vbuf[2],

  997.                      const int16_t *abuf[2], uint8_t *dest, int dstW,

  998.                      int yalpha, int uvalpha, int y,

  999.                      enum AVPixelFormat target, int hasAlpha)

  1000. {

  1001.     const int16_t *buf0  = buf[0],  *buf1  = buf[1],

  1002.                   *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],

  1003.                   *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],

  1004.                   *abuf0 = hasAlpha ? abuf[0] : NULL,

  1005.                   *abuf1 = hasAlpha ? abuf[1] : NULL;

  1006.     int  yalpha1 = 4096 - yalpha;

  1007.     int uvalpha1 = 4096 - uvalpha;

  1008.     int i;

  1009. 

  1010.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1011.         int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha)  >> 19;

  1012.         int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha)  >> 19;

  1013.         int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha) >> 19;

  1014.         int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha) >> 19;

  1015.         int A1, A2;

  1016.         const void *r, *g, *b;

  1017. 

  1018.         Y1 = av_clip_uint8(Y1);

  1019.         Y2 = av_clip_uint8(Y2);

  1020.         U  = av_clip_uint8(U);

  1021.         V  = av_clip_uint8(V);

  1022. 

  1023.         r =  c->table_rV[V];

  1024.         g = (c->table_gU[U] + c->table_gV[V]);

  1025.         b =  c->table_bU[U];

  1026. 

  1027.         if (hasAlpha) {

  1028.             A1 = (abuf0[i * 2    ] * yalpha1 + abuf1[i * 2    ] * yalpha) >> 19;

  1029.             A2 = (abuf0[i * 2 + 1] * yalpha1 + abuf1[i * 2 + 1] * yalpha) >> 19;

  1030.             A1 = av_clip_uint8(A1);

  1031.             A2 = av_clip_uint8(A2);

  1032.         }

  1033. 

  1034.         yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1035.                       r, g, b, y, target, hasAlpha);

  1036.     }

  1037. }

  1038. 

  1039. static av_always_inline void

  1040. yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,

  1041.                      const int16_t *ubuf[2], const int16_t *vbuf[2],

  1042.                      const int16_t *abuf0, uint8_t *dest, int dstW,

  1043.                      int uvalpha, int y, enum AVPixelFormat target,

  1044.                      int hasAlpha)

  1045. {

  1046.     const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];

  1047.     int i;

  1048. 

  1049.     if (uvalpha < 2048) {

  1050.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1051.             int Y1 = buf0[i * 2]     >> 7;

  1052.             int Y2 = buf0[i * 2 + 1] >> 7;

  1053.             int U  = ubuf0[i]        >> 7;

  1054.             int V  = vbuf0[i]        >> 7;

  1055.             int A1, A2;

  1056.             const void *r, *g, *b;

  1057. 

  1058.             Y1 = av_clip_uint8(Y1);

  1059.             Y2 = av_clip_uint8(Y2);

  1060.             U  = av_clip_uint8(U);

  1061.             V  = av_clip_uint8(V);

  1062. 

  1063.             r =  c->table_rV[V];

  1064.             g = (c->table_gU[U] + c->table_gV[V]);

  1065.             b =  c->table_bU[U];

  1066. 

  1067.             if (hasAlpha) {

  1068.                 A1 = abuf0[i * 2    ] >> 7;

  1069.                 A2 = abuf0[i * 2 + 1] >> 7;

  1070.                 A1 = av_clip_uint8(A1);

  1071.                 A2 = av_clip_uint8(A2);

  1072.             }

  1073. 

  1074.             yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1075.                           r, g, b, y, target, hasAlpha);

  1076.         }

  1077.     } else {

  1078.         const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];

  1079.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1080.             int Y1 =  buf0[i * 2]          >> 7;

  1081.             int Y2 =  buf0[i * 2 + 1]      >> 7;

  1082.             int U  = (ubuf0[i] + ubuf1[i]) >> 8;

  1083.             int V  = (vbuf0[i] + vbuf1[i]) >> 8;

  1084.             int A1, A2;

  1085.             const void *r, *g, *b;

  1086. 

  1087.             Y1 = av_clip_uint8(Y1);

  1088.             Y2 = av_clip_uint8(Y2);

  1089.             U  = av_clip_uint8(U);

  1090.             V  = av_clip_uint8(V);

  1091. 

  1092.             r =  c->table_rV[V];

  1093.             g = (c->table_gU[U] + c->table_gV[V]);

  1094.             b =  c->table_bU[U];

  1095. 

  1096.             if (hasAlpha) {

  1097.                 A1 = abuf0[i * 2    ] >> 7;

  1098.                 A2 = abuf0[i * 2 + 1] >> 7;

  1099.                 A1 = av_clip_uint8(A1);

  1100.                 A2 = av_clip_uint8(A2);

  1101.             }

  1102. 

  1103.             yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1104.                           r, g, b, y, target, hasAlpha);

  1105.         }

  1106.     }

  1107. }

  1108. 

  1109. #define YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \

  1110. static void name ## ext ## _X_c(SwsContext *c, const int16_t *lumFilter, \

  1111.                                 const int16_t **lumSrc, int lumFilterSize, \

  1112.                                 const int16_t *chrFilter, const int16_t **chrUSrc, \

  1113.                                 const int16_t **chrVSrc, int chrFilterSize, \

  1114.                                 const int16_t **alpSrc, uint8_t *dest, int dstW, \

  1115.                                 int y) \

  1116. { \

  1117.     name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \

  1118.                                   chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

  1119.                                   alpSrc, dest, dstW, y, fmt, hasAlpha); \

  1120. }

  1121. #define YUV2RGBWRAPPER(name, base, ext, fmt, hasAlpha) \

  1122. YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \

  1123. static void name ## ext ## _2_c(SwsContext *c, const int16_t *buf[2], \

  1124.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  1125.                                 const int16_t *abuf[2], uint8_t *dest, int dstW, \

  1126.                                 int yalpha, int uvalpha, int y) \

  1127. { \

  1128.     name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \

  1129.                                   dest, dstW, yalpha, uvalpha, y, fmt, hasAlpha); \

  1130. } \

  1131.  \

  1132. static void name ## ext ## _1_c(SwsContext *c, const int16_t *buf0, \

  1133.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  1134.                                 const int16_t *abuf0, uint8_t *dest, int dstW, \

  1135.                                 int uvalpha, int y) \

  1136. { \

  1137.     name ## base ## _1_c_template(c, buf0, ubuf, vbuf, abuf0, dest, \

  1138.                                   dstW, uvalpha, y, fmt, hasAlpha); \

  1139. }

  1140. 

  1141. #if CONFIG_SMALL

  1142. YUV2RGBWRAPPER(yuv2rgb,,  32_1,  AV_PIX_FMT_RGB32_1,   CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1143. YUV2RGBWRAPPER(yuv2rgb,,  32,    AV_PIX_FMT_RGB32,     CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1144. #else

  1145. #if CONFIG_SWSCALE_ALPHA

  1146. YUV2RGBWRAPPER(yuv2rgb,, a32_1,  AV_PIX_FMT_RGB32_1,   1)

  1147. YUV2RGBWRAPPER(yuv2rgb,, a32,    AV_PIX_FMT_RGB32,     1)

  1148. #endif

  1149. YUV2RGBWRAPPER(yuv2rgb,, x32_1,  AV_PIX_FMT_RGB32_1,   0)

  1150. YUV2RGBWRAPPER(yuv2rgb,, x32,    AV_PIX_FMT_RGB32,     0)

  1151. #endif

  1152. YUV2RGBWRAPPER(yuv2, rgb, rgb24, AV_PIX_FMT_RGB24,   0)

  1153. YUV2RGBWRAPPER(yuv2, rgb, bgr24, AV_PIX_FMT_BGR24,   0)

  1154. YUV2RGBWRAPPER(yuv2rgb,,  16,    AV_PIX_FMT_RGB565,    0)

  1155. YUV2RGBWRAPPER(yuv2rgb,,  15,    AV_PIX_FMT_RGB555,    0)

  1156. YUV2RGBWRAPPER(yuv2rgb,,  12,    AV_PIX_FMT_RGB444,    0)

  1157. YUV2RGBWRAPPER(yuv2rgb,,   8,    AV_PIX_FMT_RGB8,      0)

  1158. YUV2RGBWRAPPER(yuv2rgb,,   4,    AV_PIX_FMT_RGB4,      0)

  1159. YUV2RGBWRAPPER(yuv2rgb,,   4b,   AV_PIX_FMT_RGB4_BYTE, 0)

  1160. 

  1161. static av_always_inline void

  1162. yuv2rgb_full_X_c_template(SwsContext *c, const int16_t *lumFilter,

  1163.                           const int16_t **lumSrc, int lumFilterSize,

  1164.                           const int16_t *chrFilter, const int16_t **chrUSrc,

  1165.                           const int16_t **chrVSrc, int chrFilterSize,

  1166.                           const int16_t **alpSrc, uint8_t *dest,

  1167.                           int dstW, int y, enum AVPixelFormat target, int hasAlpha)

  1168. {

  1169.     int i;

  1170.     int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;

  1171. 

  1172.     for (i = 0; i < dstW; i++) {

  1173.         int j;

  1174.         int Y = 0;

  1175.         int U = -128 << 19;

  1176.         int V = -128 << 19;

  1177.         int R, G, B, A;

  1178. 

  1179.         for (j = 0; j < lumFilterSize; j++) {

  1180.             Y += lumSrc[j][i] * lumFilter[j];

  1181.         }

  1182.         for (j = 0; j < chrFilterSize; j++) {

  1183.             U += chrUSrc[j][i] * chrFilter[j];

  1184.             V += chrVSrc[j][i] * chrFilter[j];

  1185.         }

  1186.         Y >>= 10;

  1187.         U >>= 10;

  1188.         V >>= 10;

  1189.         if (hasAlpha) {

  1190.             A = 1 << 21;

  1191.             for (j = 0; j < lumFilterSize; j++) {

  1192.                 A += alpSrc[j][i] * lumFilter[j];

  1193.             }

  1194.             A >>= 19;

  1195.             if (A & 0x100)

  1196.                 A = av_clip_uint8(A);

  1197.         }

  1198.         Y -= c->yuv2rgb_y_offset;

  1199.         Y *= c->yuv2rgb_y_coeff;

  1200.         Y += 1 << 21;

  1201.         R = Y + V*c->yuv2rgb_v2r_coeff;

  1202.         G = Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;

  1203.         B = Y +                          U*c->yuv2rgb_u2b_coeff;

  1204.         if ((R | G | B) & 0xC0000000) {

  1205.             R = av_clip_uintp2(R, 30);

  1206.             G = av_clip_uintp2(G, 30);

  1207.             B = av_clip_uintp2(B, 30);

  1208.         }

  1209. 

  1210.         switch(target) {

  1211.         case AV_PIX_FMT_ARGB:

  1212.             dest[0] = hasAlpha ? A : 255;

  1213.             dest[1] = R >> 22;

  1214.             dest[2] = G >> 22;

  1215.             dest[3] = B >> 22;

  1216.             break;

  1217.         case AV_PIX_FMT_RGB24:

  1218.             dest[0] = R >> 22;

  1219.             dest[1] = G >> 22;

  1220.             dest[2] = B >> 22;

  1221.             break;

  1222.         case AV_PIX_FMT_RGBA:

  1223.             dest[0] = R >> 22;

  1224.             dest[1] = G >> 22;

  1225.             dest[2] = B >> 22;

  1226.             dest[3] = hasAlpha ? A : 255;

  1227.             break;

  1228.         case AV_PIX_FMT_ABGR:

  1229.             dest[0] = hasAlpha ? A : 255;

  1230.             dest[1] = B >> 22;

  1231.             dest[2] = G >> 22;

  1232.             dest[3] = R >> 22;

  1233.             dest += 4;

  1234.             break;

  1235.         case AV_PIX_FMT_BGR24:

  1236.             dest[0] = B >> 22;

  1237.             dest[1] = G >> 22;

  1238.             dest[2] = R >> 22;

  1239.             break;

  1240.         case AV_PIX_FMT_BGRA:

  1241.             dest[0] = B >> 22;

  1242.             dest[1] = G >> 22;

  1243.             dest[2] = R >> 22;

  1244.             dest[3] = hasAlpha ? A : 255;

  1245.             break;

  1246.         }

  1247.         dest += step;

  1248.     }

  1249. }

  1250. 

  1251. #if CONFIG_SMALL

  1252. YUV2RGBWRAPPERX(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1253. YUV2RGBWRAPPERX(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1254. YUV2RGBWRAPPERX(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1255. YUV2RGBWRAPPERX(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1256. #else

  1257. #if CONFIG_SWSCALE_ALPHA

  1258. YUV2RGBWRAPPERX(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  1)

  1259. YUV2RGBWRAPPERX(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  1)

  1260. YUV2RGBWRAPPERX(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  1)

  1261. YUV2RGBWRAPPERX(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  1)

  1262. #endif

  1263. YUV2RGBWRAPPERX(yuv2, rgb_full, bgrx32_full, AV_PIX_FMT_BGRA,  0)

  1264. YUV2RGBWRAPPERX(yuv2, rgb_full, xbgr32_full, AV_PIX_FMT_ABGR,  0)

  1265. YUV2RGBWRAPPERX(yuv2, rgb_full, rgbx32_full, AV_PIX_FMT_RGBA,  0)

  1266. YUV2RGBWRAPPERX(yuv2, rgb_full, xrgb32_full, AV_PIX_FMT_ARGB,  0)

  1267. #endif

  1268. YUV2RGBWRAPPERX(yuv2, rgb_full, bgr24_full,  AV_PIX_FMT_BGR24, 0)

  1269. YUV2RGBWRAPPERX(yuv2, rgb_full, rgb24_full,  AV_PIX_FMT_RGB24, 0)

  1270. 

  1271. static void

  1272. yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter,

  1273.                   const int16_t **lumSrc, int lumFilterSize,

  1274.                   const int16_t *chrFilter, const int16_t **chrUSrc,

  1275.                   const int16_t **chrVSrc, int chrFilterSize,

  1276.                   const int16_t **alpSrc, uint8_t **dest,

  1277.                   int dstW, int y)

  1278. {

  1279.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->dstFormat);

  1280.     int i;

  1281.     int hasAlpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA) && alpSrc;

  1282.     uint16_t **dest16 = (uint16_t**)dest;

  1283.     int SH = 22 + 8 - desc->comp[0].depth;

  1284. 

  1285.     for (i = 0; i < dstW; i++) {

  1286.         int j;

  1287.         int Y = 1 << 9;

  1288.         int U = (1 << 9) - (128 << 19);

  1289.         int V = (1 << 9) - (128 << 19);

  1290.         int R, G, B, A;

  1291. 

  1292.         for (j = 0; j < lumFilterSize; j++)

  1293.             Y += lumSrc[j][i] * lumFilter[j];

  1294. 

  1295.         for (j = 0; j < chrFilterSize; j++) {

  1296.             U += chrUSrc[j][i] * chrFilter[j];

  1297.             V += chrVSrc[j][i] * chrFilter[j];

  1298.         }

  1299. 

  1300.         Y >>= 10;

  1301.         U >>= 10;

  1302.         V >>= 10;

  1303. 

  1304.         if (hasAlpha) {

  1305.             A = 1 << 18;

  1306. 

  1307.             for (j = 0; j < lumFilterSize; j++)

  1308.                 A += alpSrc[j][i] * lumFilter[j];

  1309. 

  1310.             A >>= 19;

  1311. 

  1312.             if (A & 0x100)

  1313.                 A = av_clip_uint8(A);

  1314.         }

  1315. 

  1316.         Y -= c->yuv2rgb_y_offset;

  1317.         Y *= c->yuv2rgb_y_coeff;

  1318.         Y += 1 << 21;

  1319.         R = Y + V * c->yuv2rgb_v2r_coeff;

  1320.         G = Y + V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  1321.         B = Y +                            U * c->yuv2rgb_u2b_coeff;

  1322. 

  1323.         if ((R | G | B) & 0xC0000000) {

  1324.             R = av_clip_uintp2(R, 30);

  1325.             G = av_clip_uintp2(G, 30);

  1326.             B = av_clip_uintp2(B, 30);

  1327.         }

  1328. 

  1329.         if (SH != 22) {

  1330.             dest16[0][i] = G >> SH;

  1331.             dest16[1][i] = B >> SH;

  1332.             dest16[2][i] = R >> SH;

  1333.             if (hasAlpha)

  1334.                 dest16[3][i] = A;

  1335.         } else {

  1336.             dest[0][i] = G >> 22;

  1337.             dest[1][i] = B >> 22;

  1338.             dest[2][i] = R >> 22;

  1339.             if (hasAlpha)

  1340.                 dest[3][i] = A;

  1341.         }

  1342.     }

  1343.     if (SH != 22 && (!isBE(c->dstFormat)) != (!HAVE_BIGENDIAN)) {

  1344.         for (i = 0; i < dstW; i++) {

  1345.             dest16[0][i] = av_bswap16(dest16[0][i]);

  1346.             dest16[1][i] = av_bswap16(dest16[1][i]);

  1347.             dest16[2][i] = av_bswap16(dest16[2][i]);

  1348.             if (hasAlpha)

  1349.                 dest16[3][i] = av_bswap16(dest16[3][i]);

  1350.         }

  1351.     }

  1352. }

  1353. 

  1354. av_cold void ff_sws_init_output_funcs(SwsContext *c,

  1355.                                       yuv2planar1_fn *yuv2plane1,

  1356.                                       yuv2planarX_fn *yuv2planeX,

  1357.                                       yuv2interleavedX_fn *yuv2nv12cX,

  1358.                                       yuv2packed1_fn *yuv2packed1,

  1359.                                       yuv2packed2_fn *yuv2packed2,

  1360.                                       yuv2packedX_fn *yuv2packedX,

  1361.                                       yuv2anyX_fn *yuv2anyX)

  1362. {

  1363.     enum AVPixelFormat dstFormat = c->dstFormat;

  1364.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);

  1365. 

  1366.     if (is16BPS(dstFormat)) {

  1367.         *yuv2planeX = isBE(dstFormat) ? yuv2planeX_16BE_c  : yuv2planeX_16LE_c;

  1368.         *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_16BE_c  : yuv2plane1_16LE_c;

  1369.     } else if (is9_15BPS(dstFormat)) {

  1370.         if (desc->comp[0].depth == 9) {

  1371.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_9BE_c  : yuv2planeX_9LE_c;

  1372.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_9BE_c  : yuv2plane1_9LE_c;

  1373.         } else if (desc->comp[0].depth == 10) {

  1374.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_10BE_c  : yuv2planeX_10LE_c;

  1375.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_10BE_c  : yuv2plane1_10LE_c;

  1376.         } else if (desc->comp[0].depth == 12) {

  1377.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_12BE_c  : yuv2planeX_12LE_c;

  1378.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_12BE_c  : yuv2plane1_12LE_c;

  1379.         } else {

  1380.             assert(0);

  1381.         }

  1382.     } else {

  1383.         *yuv2plane1 = yuv2plane1_8_c;

  1384.         *yuv2planeX = yuv2planeX_8_c;

  1385.         if (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)

  1386.             *yuv2nv12cX = yuv2nv12cX_c;

  1387.     }

  1388. 

  1389.     if(c->flags & SWS_FULL_CHR_H_INT) {

  1390.         switch (dstFormat) {

  1391.             case AV_PIX_FMT_RGBA:

  1392. #if CONFIG_SMALL

  1393.                 *yuv2packedX = yuv2rgba32_full_X_c;

  1394. #else

  1395. #if CONFIG_SWSCALE_ALPHA

  1396.                 if (c->alpPixBuf) {

  1397.                     *yuv2packedX = yuv2rgba32_full_X_c;

  1398.                 } else

  1399. #endif /* CONFIG_SWSCALE_ALPHA */

  1400.                 {

  1401.                     *yuv2packedX = yuv2rgbx32_full_X_c;

  1402.                 }

  1403. #endif /* !CONFIG_SMALL */

  1404.                 break;

  1405.             case AV_PIX_FMT_ARGB:

  1406. #if CONFIG_SMALL

  1407.                 *yuv2packedX = yuv2argb32_full_X_c;

  1408. #else

  1409. #if CONFIG_SWSCALE_ALPHA

  1410.                 if (c->alpPixBuf) {

  1411.                     *yuv2packedX = yuv2argb32_full_X_c;

  1412.                 } else

  1413. #endif /* CONFIG_SWSCALE_ALPHA */

  1414.                 {

  1415.                     *yuv2packedX = yuv2xrgb32_full_X_c;

  1416.                 }

  1417. #endif /* !CONFIG_SMALL */

  1418.                 break;

  1419.             case AV_PIX_FMT_BGRA:

  1420. #if CONFIG_SMALL

  1421.                 *yuv2packedX = yuv2bgra32_full_X_c;

  1422. #else

  1423. #if CONFIG_SWSCALE_ALPHA

  1424.                 if (c->alpPixBuf) {

  1425.                     *yuv2packedX = yuv2bgra32_full_X_c;

  1426.                 } else

  1427. #endif /* CONFIG_SWSCALE_ALPHA */

  1428.                 {

  1429.                     *yuv2packedX = yuv2bgrx32_full_X_c;

  1430.                 }

  1431. #endif /* !CONFIG_SMALL */

  1432.                 break;

  1433.             case AV_PIX_FMT_ABGR:

  1434. #if CONFIG_SMALL

  1435.                 *yuv2packedX = yuv2abgr32_full_X_c;

  1436. #else

  1437. #if CONFIG_SWSCALE_ALPHA

  1438.                 if (c->alpPixBuf) {

  1439.                     *yuv2packedX = yuv2abgr32_full_X_c;

  1440.                 } else

  1441. #endif /* CONFIG_SWSCALE_ALPHA */

  1442.                 {

  1443.                     *yuv2packedX = yuv2xbgr32_full_X_c;

  1444.                 }

  1445. #endif /* !CONFIG_SMALL */

  1446.                 break;

  1447.             case AV_PIX_FMT_RGB24:

  1448.             *yuv2packedX = yuv2rgb24_full_X_c;

  1449.             break;

  1450.         case AV_PIX_FMT_BGR24:

  1451.             *yuv2packedX = yuv2bgr24_full_X_c;

  1452.             break;

  1453.         case AV_PIX_FMT_GBRP:

  1454.         case AV_PIX_FMT_GBRP9BE:

  1455.         case AV_PIX_FMT_GBRP9LE:

  1456.         case AV_PIX_FMT_GBRP10BE:

  1457.         case AV_PIX_FMT_GBRP10LE:

  1458.         case AV_PIX_FMT_GBRP12BE:

  1459.         case AV_PIX_FMT_GBRP12LE:

  1460.         case AV_PIX_FMT_GBRAP12BE:

  1461.         case AV_PIX_FMT_GBRAP12LE:

  1462.         case AV_PIX_FMT_GBRP16BE:

  1463.         case AV_PIX_FMT_GBRP16LE:

  1464.         case AV_PIX_FMT_GBRAP:

  1465.             *yuv2anyX = yuv2gbrp_full_X_c;

  1466.             break;

  1467.         }

  1468.     } else {

  1469.         switch (dstFormat) {

  1470.         case AV_PIX_FMT_RGB48LE:

  1471.             *yuv2packed1 = yuv2rgb48le_1_c;

  1472.             *yuv2packed2 = yuv2rgb48le_2_c;

  1473.             *yuv2packedX = yuv2rgb48le_X_c;

  1474.             break;

  1475.         case AV_PIX_FMT_RGB48BE:

  1476.             *yuv2packed1 = yuv2rgb48be_1_c;

  1477.             *yuv2packed2 = yuv2rgb48be_2_c;

  1478.             *yuv2packedX = yuv2rgb48be_X_c;

  1479.             break;

  1480.         case AV_PIX_FMT_BGR48LE:

  1481.             *yuv2packed1 = yuv2bgr48le_1_c;

  1482.             *yuv2packed2 = yuv2bgr48le_2_c;

  1483.             *yuv2packedX = yuv2bgr48le_X_c;

  1484.             break;

  1485.         case AV_PIX_FMT_BGR48BE:

  1486.             *yuv2packed1 = yuv2bgr48be_1_c;

  1487.             *yuv2packed2 = yuv2bgr48be_2_c;

  1488.             *yuv2packedX = yuv2bgr48be_X_c;

  1489.             break;

  1490.         case AV_PIX_FMT_RGB32:

  1491.         case AV_PIX_FMT_BGR32:

  1492. #if CONFIG_SMALL

  1493.             *yuv2packed1 = yuv2rgb32_1_c;

  1494.             *yuv2packed2 = yuv2rgb32_2_c;

  1495.             *yuv2packedX = yuv2rgb32_X_c;

  1496. #else

  1497. #if CONFIG_SWSCALE_ALPHA

  1498.                 if (c->alpPixBuf) {

  1499.                     *yuv2packed1 = yuv2rgba32_1_c;

  1500.                     *yuv2packed2 = yuv2rgba32_2_c;

  1501.                     *yuv2packedX = yuv2rgba32_X_c;

  1502.                 } else

  1503. #endif /* CONFIG_SWSCALE_ALPHA */

  1504.                 {

  1505.                     *yuv2packed1 = yuv2rgbx32_1_c;

  1506.                     *yuv2packed2 = yuv2rgbx32_2_c;

  1507.                     *yuv2packedX = yuv2rgbx32_X_c;

  1508.                 }

  1509. #endif /* !CONFIG_SMALL */

  1510.             break;

  1511.         case AV_PIX_FMT_RGB32_1:

  1512.         case AV_PIX_FMT_BGR32_1:

  1513. #if CONFIG_SMALL

  1514.                 *yuv2packed1 = yuv2rgb32_1_1_c;

  1515.                 *yuv2packed2 = yuv2rgb32_1_2_c;

  1516.                 *yuv2packedX = yuv2rgb32_1_X_c;

  1517. #else

  1518. #if CONFIG_SWSCALE_ALPHA

  1519.                 if (c->alpPixBuf) {

  1520.                     *yuv2packed1 = yuv2rgba32_1_1_c;

  1521.                     *yuv2packed2 = yuv2rgba32_1_2_c;

  1522.                     *yuv2packedX = yuv2rgba32_1_X_c;

  1523.                 } else

  1524. #endif /* CONFIG_SWSCALE_ALPHA */

  1525.                 {

  1526.                     *yuv2packed1 = yuv2rgbx32_1_1_c;

  1527.                     *yuv2packed2 = yuv2rgbx32_1_2_c;

  1528.                     *yuv2packedX = yuv2rgbx32_1_X_c;

  1529.                 }

  1530. #endif /* !CONFIG_SMALL */

  1531.                 break;

  1532.         case AV_PIX_FMT_RGB24:

  1533.             *yuv2packed1 = yuv2rgb24_1_c;

  1534.             *yuv2packed2 = yuv2rgb24_2_c;

  1535.             *yuv2packedX = yuv2rgb24_X_c;

  1536.             break;

  1537.         case AV_PIX_FMT_BGR24:

  1538.             *yuv2packed1 = yuv2bgr24_1_c;

  1539.             *yuv2packed2 = yuv2bgr24_2_c;

  1540.             *yuv2packedX = yuv2bgr24_X_c;

  1541.             break;

  1542.         case AV_PIX_FMT_RGB565LE:

  1543.         case AV_PIX_FMT_RGB565BE:

  1544.         case AV_PIX_FMT_BGR565LE:

  1545.         case AV_PIX_FMT_BGR565BE:

  1546.             *yuv2packed1 = yuv2rgb16_1_c;

  1547.             *yuv2packed2 = yuv2rgb16_2_c;

  1548.             *yuv2packedX = yuv2rgb16_X_c;

  1549.             break;

  1550.         case AV_PIX_FMT_RGB555LE:

  1551.         case AV_PIX_FMT_RGB555BE:

  1552.         case AV_PIX_FMT_BGR555LE:

  1553.         case AV_PIX_FMT_BGR555BE:

  1554.             *yuv2packed1 = yuv2rgb15_1_c;

  1555.             *yuv2packed2 = yuv2rgb15_2_c;

  1556.             *yuv2packedX = yuv2rgb15_X_c;

  1557.             break;

  1558.         case AV_PIX_FMT_RGB444LE:

  1559.         case AV_PIX_FMT_RGB444BE:

  1560.         case AV_PIX_FMT_BGR444LE:

  1561.         case AV_PIX_FMT_BGR444BE:

  1562.             *yuv2packed1 = yuv2rgb12_1_c;

  1563.             *yuv2packed2 = yuv2rgb12_2_c;

  1564.             *yuv2packedX = yuv2rgb12_X_c;

  1565.             break;

  1566.         case AV_PIX_FMT_RGB8:

  1567.         case AV_PIX_FMT_BGR8:

  1568.             *yuv2packed1 = yuv2rgb8_1_c;

  1569.             *yuv2packed2 = yuv2rgb8_2_c;

  1570.             *yuv2packedX = yuv2rgb8_X_c;

  1571.             break;

  1572.         case AV_PIX_FMT_RGB4:

  1573.         case AV_PIX_FMT_BGR4:

  1574.             *yuv2packed1 = yuv2rgb4_1_c;

  1575.             *yuv2packed2 = yuv2rgb4_2_c;

  1576.             *yuv2packedX = yuv2rgb4_X_c;

  1577.             break;

  1578.         case AV_PIX_FMT_RGB4_BYTE:

  1579.         case AV_PIX_FMT_BGR4_BYTE:

  1580.             *yuv2packed1 = yuv2rgb4b_1_c;

  1581.             *yuv2packed2 = yuv2rgb4b_2_c;

  1582.             *yuv2packedX = yuv2rgb4b_X_c;

  1583.             break;

  1584.         }

  1585.     }

  1586.     switch (dstFormat) {

  1587.     case AV_PIX_FMT_MONOWHITE:

  1588.         *yuv2packed1 = yuv2monowhite_1_c;

  1589.         *yuv2packed2 = yuv2monowhite_2_c;

  1590.         *yuv2packedX = yuv2monowhite_X_c;

  1591.         break;

  1592.     case AV_PIX_FMT_MONOBLACK:

  1593.         *yuv2packed1 = yuv2monoblack_1_c;

  1594.         *yuv2packed2 = yuv2monoblack_2_c;

  1595.         *yuv2packedX = yuv2monoblack_X_c;

  1596.         break;

  1597.     case AV_PIX_FMT_YUYV422:

  1598.         *yuv2packed1 = yuv2yuyv422_1_c;

  1599.         *yuv2packed2 = yuv2yuyv422_2_c;

  1600.         *yuv2packedX = yuv2yuyv422_X_c;

  1601.         break;

  1602.     case AV_PIX_FMT_YVYU422:

  1603.         *yuv2packed1 = yuv2yvyu422_1_c;

  1604.         *yuv2packed2 = yuv2yvyu422_2_c;

  1605.         *yuv2packedX = yuv2yvyu422_X_c;

  1606.         break;

  1607.     case AV_PIX_FMT_UYVY422:

  1608.         *yuv2packed1 = yuv2uyvy422_1_c;

  1609.         *yuv2packed2 = yuv2uyvy422_2_c;

  1610.         *yuv2packedX = yuv2uyvy422_X_c;

  1611.         break;

  1612.     }

  1613. }