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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. // Shifting negative amounts is undefined in C

  134. #define SHIFT_LEFT(val, shift) ((val) * (1 << (shift)))

  135. 

  136. static av_always_inline void

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

  138.                          int big_endian, int output_bits)

  139. {

  140.     int i;

  141.     int shift = 19 - output_bits;

  142. 

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

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

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

  146.     }

  147. }

  148. 

  149. static av_always_inline void

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

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

  152.                          int big_endian, int output_bits)

  153. {

  154.     int i;

  155.     int shift = 15 + 16 - output_bits;

  156. 

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

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

  159.         int j;

  160. 

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

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

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

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

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

  166.         val -= 0x40000000;

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

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

  169. 

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

  171.     }

  172. }

  173. 

  174. #undef output_pixel

  175. 

  176. #define output_pixel(pos, val) \

  177.     if (big_endian) { \

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

  179.     } else { \

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

  181.     }

  182. 

  183. static av_always_inline void

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

  185.                          int big_endian, int output_bits)

  186. {

  187.     int i;

  188.     int shift = 15 - output_bits;

  189. 

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

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

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

  193.     }

  194. }

  195. 

  196. static av_always_inline void

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

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

  199.                          int big_endian, int output_bits)

  200. {

  201.     int i;

  202.     int shift = 11 + 16 - output_bits;

  203. 

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

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

  206.         int j;

  207. 

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

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

  210. 

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

  212.     }

  213. }

  214. 

  215. #undef output_pixel

  216. 

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

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

  219.                               uint8_t *dest, int dstW, \

  220.                               const uint8_t *dither, int offset)\

  221. { \

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

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

  224. }\

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

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

  227.                               const uint8_t *dither, int offset)\

  228. { \

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

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

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

  232. }

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

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

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

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

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

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

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

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

  241. 

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

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

  244.                            const uint8_t *dither, int offset)

  245. {

  246.     int i;

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

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

  249.         int j;

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

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

  252. 

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

  254.     }

  255. }

  256. 

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

  258.                            const uint8_t *dither, int offset)

  259. {

  260.     int i;

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

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

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

  264.     }

  265. }

  266. 

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

  268.                         const int16_t **chrUSrc, const int16_t **chrVSrc,

  269.                         uint8_t *dest, int chrDstW)

  270. {

  271.     enum AVPixelFormat dstFormat = c->dstFormat;

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

  273.     int i;

  274. 

  275.     if (dstFormat == AV_PIX_FMT_NV12)

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

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

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

  279.             int j;

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

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

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

  283.             }

  284. 

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

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

  287.         }

  288.     else

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

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

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

  292.             int j;

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

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

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

  296.             }

  297. 

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

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

  300.         }

  301. }

  302. 

  303. #define accumulate_bit(acc, val) \

  304.     acc <<= 1; \

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

  306. #define output_pixel(pos, acc) \

  307.     if (target == AV_PIX_FMT_MONOBLACK) { \

  308.         pos = acc; \

  309.     } else { \

  310.         pos = ~acc; \

  311.     }

  312. 

  313. static av_always_inline void

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

  315.                       const int16_t **lumSrc, int lumFilterSize,

  316.                       const int16_t *chrFilter, const int16_t **chrUSrc,

  317.                       const int16_t **chrVSrc, int chrFilterSize,

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

  319.                       int y, enum AVPixelFormat target)

  320. {

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

  322.     int i;

  323.     unsigned acc = 0;

  324. 

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

  326.         int j;

  327.         int Y1 = 1 << 18;

  328.         int Y2 = 1 << 18;

  329. 

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

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

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

  333.         }

  334.         Y1 >>= 19;

  335.         Y2 >>= 19;

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

  337.             Y1 = av_clip_uint8(Y1);

  338.             Y2 = av_clip_uint8(Y2);

  339.         }

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

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

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

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

  344.         }

  345.     }

  346. 

  347.     if (i & 6) {

  348.         output_pixel(*dest, acc);

  349.     }

  350. }

  351. 

  352. static av_always_inline void

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

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

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

  356.                       int yalpha, int uvalpha, int y,

  357.                       enum AVPixelFormat target)

  358. {

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

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

  361.     int  yalpha1 = 4096 - yalpha;

  362.     int i;

  363. 

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

  365.         int Y, acc = 0;

  366. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  383. 

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

  385.     }

  386. }

  387. 

  388. static av_always_inline void

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

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

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

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

  393. {

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

  395.     int i;

  396. 

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

  398.         int acc = 0;

  399. 

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

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

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

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

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

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

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

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

  408. 

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

  410.     }

  411. }

  412. 

  413. #undef output_pixel

  414. #undef accumulate_bit

  415. 

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

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

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

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

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

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

  422.                                 int y) \

  423. { \

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

  425.                                   chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

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

  427. } \

  428.  \

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

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

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

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

  433. { \

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

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

  436. } \

  437.  \

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

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

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

  441.                                 int uvalpha, int y) \

  442. { \

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

  444.                                   abuf0, dest, dstW, uvalpha, \

  445.                                   y, fmt); \

  446. }

  447. 

  448. YUV2PACKEDWRAPPER(yuv2mono,, white, AV_PIX_FMT_MONOWHITE)

  449. YUV2PACKEDWRAPPER(yuv2mono,, black, AV_PIX_FMT_MONOBLACK)

  450. 

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

  452.     if (target == AV_PIX_FMT_YUYV422) { \

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

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

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

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

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

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

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

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

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

  462.     } else { /* AV_PIX_FMT_UYVY422 */ \

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

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

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

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

  467.     }

  468. 

  469. static av_always_inline void

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

  471.                      const int16_t **lumSrc, int lumFilterSize,

  472.                      const int16_t *chrFilter, const int16_t **chrUSrc,

  473.                      const int16_t **chrVSrc, int chrFilterSize,

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

  475.                      int y, enum AVPixelFormat target)

  476. {

  477.     int i;

  478. 

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

  480.         int j;

  481.         int Y1 = 1 << 18;

  482.         int Y2 = 1 << 18;

  483.         int U  = 1 << 18;

  484.         int V  = 1 << 18;

  485. 

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

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

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

  489.         }

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

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

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

  493.         }

  494.         Y1 >>= 19;

  495.         Y2 >>= 19;

  496.         U  >>= 19;

  497.         V  >>= 19;

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

  499.             Y1 = av_clip_uint8(Y1);

  500.             Y2 = av_clip_uint8(Y2);

  501.             U  = av_clip_uint8(U);

  502.             V  = av_clip_uint8(V);

  503.         }

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

  505.     }

  506. }

  507. 

  508. static av_always_inline void

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

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

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

  512.                      int yalpha, int uvalpha, int y,

  513.                      enum AVPixelFormat target)

  514. {

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

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

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

  518.     int  yalpha1 = 4096 - yalpha;

  519.     int uvalpha1 = 4096 - uvalpha;

  520.     int i;

  521. 

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

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

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

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

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

  527. 

  528.         Y1 = av_clip_uint8(Y1);

  529.         Y2 = av_clip_uint8(Y2);

  530.         U  = av_clip_uint8(U);

  531.         V  = av_clip_uint8(V);

  532. 

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

  534.     }

  535. }

  536. 

  537. static av_always_inline void

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

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

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

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

  542. {

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

  544.     int i;

  545. 

  546.     if (uvalpha < 2048) {

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

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

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

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

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

  552. 

  553.             Y1 = av_clip_uint8(Y1);

  554.             Y2 = av_clip_uint8(Y2);

  555.             U  = av_clip_uint8(U);

  556.             V  = av_clip_uint8(V);

  557. 

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

  559.         }

  560.     } else {

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

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

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

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

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

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

  567. 

  568.             Y1 = av_clip_uint8(Y1);

  569.             Y2 = av_clip_uint8(Y2);

  570.             U  = av_clip_uint8(U);

  571.             V  = av_clip_uint8(V);

  572. 

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

  574.         }

  575.     }

  576. }

  577. 

  578. #undef output_pixels

  579. 

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

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

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

  583. 

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

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

  586. #define output_pixel(pos, val) \

  587.     if (isBE(target)) { \

  588.         AV_WB16(pos, val); \

  589.     } else { \

  590.         AV_WL16(pos, val); \

  591.     }

  592. 

  593. static av_always_inline void

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

  595.                        const int32_t **lumSrc, int lumFilterSize,

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

  597.                        const int32_t **chrVSrc, int chrFilterSize,

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

  599.                        int y, enum AVPixelFormat target)

  600. {

  601.     int i;

  602. 

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

  604.         int j;

  605.         int Y1 = -0x40000000;

  606.         int Y2 = -0x40000000;

  607.         int U  = SHIFT_LEFT(-128, 23); // 19

  608.         int V  = SHIFT_LEFT(-128, 23);

  609.         int R, G, B;

  610. 

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

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

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

  614.         }

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

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

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

  618.         }

  619. 

  620.         // 8 bits: 12+15=27; 16 bits: 12+19=31

  621.         Y1 >>= 14; // 10

  622.         Y1 += 0x10000;

  623.         Y2 >>= 14;

  624.         Y2 += 0x10000;

  625.         U  >>= 14;

  626.         V  >>= 14;

  627. 

  628.         // 8 bits: 27 -> 17 bits, 16 bits: 31 - 14 = 17 bits

  629.         Y1 -= c->yuv2rgb_y_offset;

  630.         Y2 -= c->yuv2rgb_y_offset;

  631.         Y1 *= c->yuv2rgb_y_coeff;

  632.         Y2 *= c->yuv2rgb_y_coeff;

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

  634.         Y2 += 1 << 13;

  635.         // 8 bits: 17 + 13 bits = 30 bits, 16 bits: 17 + 13 bits = 30 bits

  636. 

  637.         R = V * c->yuv2rgb_v2r_coeff;

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

  639.         B =                            U * c->yuv2rgb_u2b_coeff;

  640. 

  641.         // 8 bits: 30 - 22 = 8 bits, 16 bits: 30 bits - 14 = 16 bits

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

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

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

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

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

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

  648.         dest += 6;

  649.     }

  650. }

  651. 

  652. static av_always_inline void

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

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

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

  656.                        int yalpha, int uvalpha, int y,

  657.                        enum AVPixelFormat target)

  658. {

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

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

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

  662.     int  yalpha1 = 4096 - yalpha;

  663.     int uvalpha1 = 4096 - uvalpha;

  664.     int i;

  665. 

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

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

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

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

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

  671.         int R, G, B;

  672. 

  673.         Y1 -= c->yuv2rgb_y_offset;

  674.         Y2 -= c->yuv2rgb_y_offset;

  675.         Y1 *= c->yuv2rgb_y_coeff;

  676.         Y2 *= c->yuv2rgb_y_coeff;

  677.         Y1 += 1 << 13;

  678.         Y2 += 1 << 13;

  679. 

  680.         R = V * c->yuv2rgb_v2r_coeff;

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

  682.         B =                            U * c->yuv2rgb_u2b_coeff;

  683. 

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

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

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

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

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

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

  690.         dest += 6;

  691.     }

  692. }

  693. 

  694. static av_always_inline void

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

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

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

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

  699. {

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

  701.     int i;

  702. 

  703.     if (uvalpha < 2048) {

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

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

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

  707.             int U  = (ubuf0[i] + SHIFT_LEFT(-128, 11)) >> 2;

  708.             int V  = (vbuf0[i] + SHIFT_LEFT(-128, 11)) >> 2;

  709.             int R, G, B;

  710. 

  711.             Y1 -= c->yuv2rgb_y_offset;

  712.             Y2 -= c->yuv2rgb_y_offset;

  713.             Y1 *= c->yuv2rgb_y_coeff;

  714.             Y2 *= c->yuv2rgb_y_coeff;

  715.             Y1 += 1 << 13;

  716.             Y2 += 1 << 13;

  717. 

  718.             R = V * c->yuv2rgb_v2r_coeff;

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

  720.             B =                            U * c->yuv2rgb_u2b_coeff;

  721. 

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

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

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

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

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

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

  728.             dest += 6;

  729.         }

  730.     } else {

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

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

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

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

  735.             int U  = (ubuf0[i] + ubuf1[i] + SHIFT_LEFT(-128, 12)) >> 3;

  736.             int V  = (vbuf0[i] + vbuf1[i] + SHIFT_LEFT(-128, 12)) >> 3;

  737.             int R, G, B;

  738. 

  739.             Y1 -= c->yuv2rgb_y_offset;

  740.             Y2 -= c->yuv2rgb_y_offset;

  741.             Y1 *= c->yuv2rgb_y_coeff;

  742.             Y2 *= c->yuv2rgb_y_coeff;

  743.             Y1 += 1 << 13;

  744.             Y2 += 1 << 13;

  745. 

  746.             R = V * c->yuv2rgb_v2r_coeff;

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

  748.             B =                            U * c->yuv2rgb_u2b_coeff;

  749. 

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

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

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

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

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

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

  756.             dest += 6;

  757.         }

  758.     }

  759. }

  760. 

  761. #undef output_pixel

  762. #undef r_b

  763. #undef b_r

  764. 

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

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

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

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

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

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

  771.                         int y) \

  772. { \

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

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

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

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

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

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

  779.                           chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

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

  781. } \

  782.  \

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

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

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

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

  787. { \

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

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

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

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

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

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

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

  795. } \

  796.  \

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

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

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

  800.                         int uvalpha, int y) \

  801. { \

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

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

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

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

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

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

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

  809. }

  810. 

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

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

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

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

  815. 

  816. /*

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

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

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

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

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

  822.  * correct RGB values into the destination buffer.

  823.  */

  824. static av_always_inline void

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

  826.               unsigned A1, unsigned A2,

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

  828.               enum AVPixelFormat target, int hasAlpha)

  829. {

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

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

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

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

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

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

  836. 

  837. #if CONFIG_SMALL

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

  839. 

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

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

  842. #else

  843.         if (hasAlpha) {

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

  845. 

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

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

  848.         } else {

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

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

  851.         }

  852. #endif

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

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

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

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

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

  858. 

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

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

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

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

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

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

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

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

  867. #undef r_b

  868. #undef b_r

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

  870.                target == AV_PIX_FMT_RGB555 || target == AV_PIX_FMT_BGR555 ||

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

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

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

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

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

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

  877. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  892.         } else {

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

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

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

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

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

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

  899.         }

  900. 

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

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

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

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

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

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

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

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

  909. 

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

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

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

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

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

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

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

  917.         } else {

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

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

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

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

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

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

  924.         }

  925. 

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

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

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

  929.         } else {

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

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

  932.         }

  933.     }

  934. }

  935. 

  936. static av_always_inline void

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

  938.                      const int16_t **lumSrc, int lumFilterSize,

  939.                      const int16_t *chrFilter, const int16_t **chrUSrc,

  940.                      const int16_t **chrVSrc, int chrFilterSize,

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

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

  943. {

  944.     int i;

  945. 

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

  947.         int j, A1, A2;

  948.         int Y1 = 1 << 18;

  949.         int Y2 = 1 << 18;

  950.         int U  = 1 << 18;

  951.         int V  = 1 << 18;

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

  953. 

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

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

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

  957.         }

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

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

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

  961.         }

  962.         Y1 >>= 19;

  963.         Y2 >>= 19;

  964.         U  >>= 19;

  965.         V  >>= 19;

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

  967.             Y1 = av_clip_uint8(Y1);

  968.             Y2 = av_clip_uint8(Y2);

  969.             U  = av_clip_uint8(U);

  970.             V  = av_clip_uint8(V);

  971.         }

  972.         if (hasAlpha) {

  973.             A1 = 1 << 18;

  974.             A2 = 1 << 18;

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

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

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

  978.             }

  979.             A1 >>= 19;

  980.             A2 >>= 19;

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

  982.                 A1 = av_clip_uint8(A1);

  983.                 A2 = av_clip_uint8(A2);

  984.             }

  985.         }

  986. 

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

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

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

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

  991. 

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

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

  994.     }

  995. }

  996. 

  997. static av_always_inline void

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

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

  1000.                      const int16_t *abuf[2], uint8_t *dest, int dstW,

  1001.                      int yalpha, int uvalpha, int y,

  1002.                      enum AVPixelFormat target, int hasAlpha)

  1003. {

  1004.     const int16_t *buf0  = buf[0],  *buf1  = buf[1],

  1005.                   *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],

  1006.                   *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],

  1007.                   *abuf0 = hasAlpha ? abuf[0] : NULL,

  1008.                   *abuf1 = hasAlpha ? abuf[1] : NULL;

  1009.     int  yalpha1 = 4096 - yalpha;

  1010.     int uvalpha1 = 4096 - uvalpha;

  1011.     int i;

  1012. 

  1013.     for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1014.         int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha)  >> 19;

  1015.         int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha)  >> 19;

  1016.         int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha) >> 19;

  1017.         int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha) >> 19;

  1018.         int A1, A2;

  1019.         const void *r, *g, *b;

  1020. 

  1021.         Y1 = av_clip_uint8(Y1);

  1022.         Y2 = av_clip_uint8(Y2);

  1023.         U  = av_clip_uint8(U);

  1024.         V  = av_clip_uint8(V);

  1025. 

  1026.         r =  c->table_rV[V];

  1027.         g = (c->table_gU[U] + c->table_gV[V]);

  1028.         b =  c->table_bU[U];

  1029. 

  1030.         if (hasAlpha) {

  1031.             A1 = (abuf0[i * 2    ] * yalpha1 + abuf1[i * 2    ] * yalpha) >> 19;

  1032.             A2 = (abuf0[i * 2 + 1] * yalpha1 + abuf1[i * 2 + 1] * yalpha) >> 19;

  1033.             A1 = av_clip_uint8(A1);

  1034.             A2 = av_clip_uint8(A2);

  1035.         }

  1036. 

  1037.         yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1038.                       r, g, b, y, target, hasAlpha);

  1039.     }

  1040. }

  1041. 

  1042. static av_always_inline void

  1043. yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,

  1044.                      const int16_t *ubuf[2], const int16_t *vbuf[2],

  1045.                      const int16_t *abuf0, uint8_t *dest, int dstW,

  1046.                      int uvalpha, int y, enum AVPixelFormat target,

  1047.                      int hasAlpha)

  1048. {

  1049.     const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];

  1050.     int i;

  1051. 

  1052.     if (uvalpha < 2048) {

  1053.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1054.             int Y1 = buf0[i * 2]     >> 7;

  1055.             int Y2 = buf0[i * 2 + 1] >> 7;

  1056.             int U  = ubuf0[i]        >> 7;

  1057.             int V  = vbuf0[i]        >> 7;

  1058.             int A1, A2;

  1059.             const void *r, *g, *b;

  1060. 

  1061.             Y1 = av_clip_uint8(Y1);

  1062.             Y2 = av_clip_uint8(Y2);

  1063.             U  = av_clip_uint8(U);

  1064.             V  = av_clip_uint8(V);

  1065. 

  1066.             r =  c->table_rV[V];

  1067.             g = (c->table_gU[U] + c->table_gV[V]);

  1068.             b =  c->table_bU[U];

  1069. 

  1070.             if (hasAlpha) {

  1071.                 A1 = abuf0[i * 2    ] >> 7;

  1072.                 A2 = abuf0[i * 2 + 1] >> 7;

  1073.                 A1 = av_clip_uint8(A1);

  1074.                 A2 = av_clip_uint8(A2);

  1075.             }

  1076. 

  1077.             yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1078.                           r, g, b, y, target, hasAlpha);

  1079.         }

  1080.     } else {

  1081.         const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];

  1082.         for (i = 0; i < ((dstW + 1) >> 1); i++) {

  1083.             int Y1 =  buf0[i * 2]          >> 7;

  1084.             int Y2 =  buf0[i * 2 + 1]      >> 7;

  1085.             int U  = (ubuf0[i] + ubuf1[i]) >> 8;

  1086.             int V  = (vbuf0[i] + vbuf1[i]) >> 8;

  1087.             int A1, A2;

  1088.             const void *r, *g, *b;

  1089. 

  1090.             Y1 = av_clip_uint8(Y1);

  1091.             Y2 = av_clip_uint8(Y2);

  1092.             U  = av_clip_uint8(U);

  1093.             V  = av_clip_uint8(V);

  1094. 

  1095.             r =  c->table_rV[V];

  1096.             g = (c->table_gU[U] + c->table_gV[V]);

  1097.             b =  c->table_bU[U];

  1098. 

  1099.             if (hasAlpha) {

  1100.                 A1 = abuf0[i * 2    ] >> 7;

  1101.                 A2 = abuf0[i * 2 + 1] >> 7;

  1102.                 A1 = av_clip_uint8(A1);

  1103.                 A2 = av_clip_uint8(A2);

  1104.             }

  1105. 

  1106.             yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,

  1107.                           r, g, b, y, target, hasAlpha);

  1108.         }

  1109.     }

  1110. }

  1111. 

  1112. #define YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \

  1113. static void name ## ext ## _X_c(SwsContext *c, const int16_t *lumFilter, \

  1114.                                 const int16_t **lumSrc, int lumFilterSize, \

  1115.                                 const int16_t *chrFilter, const int16_t **chrUSrc, \

  1116.                                 const int16_t **chrVSrc, int chrFilterSize, \

  1117.                                 const int16_t **alpSrc, uint8_t *dest, int dstW, \

  1118.                                 int y) \

  1119. { \

  1120.     name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \

  1121.                                   chrFilter, chrUSrc, chrVSrc, chrFilterSize, \

  1122.                                   alpSrc, dest, dstW, y, fmt, hasAlpha); \

  1123. }

  1124. #define YUV2RGBWRAPPER(name, base, ext, fmt, hasAlpha) \

  1125. YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \

  1126. static void name ## ext ## _2_c(SwsContext *c, const int16_t *buf[2], \

  1127.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  1128.                                 const int16_t *abuf[2], uint8_t *dest, int dstW, \

  1129.                                 int yalpha, int uvalpha, int y) \

  1130. { \

  1131.     name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \

  1132.                                   dest, dstW, yalpha, uvalpha, y, fmt, hasAlpha); \

  1133. } \

  1134.  \

  1135. static void name ## ext ## _1_c(SwsContext *c, const int16_t *buf0, \

  1136.                                 const int16_t *ubuf[2], const int16_t *vbuf[2], \

  1137.                                 const int16_t *abuf0, uint8_t *dest, int dstW, \

  1138.                                 int uvalpha, int y) \

  1139. { \

  1140.     name ## base ## _1_c_template(c, buf0, ubuf, vbuf, abuf0, dest, \

  1141.                                   dstW, uvalpha, y, fmt, hasAlpha); \

  1142. }

  1143. 

  1144. #if CONFIG_SMALL

  1145. YUV2RGBWRAPPER(yuv2rgb,,  32_1,  AV_PIX_FMT_RGB32_1,   CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1146. YUV2RGBWRAPPER(yuv2rgb,,  32,    AV_PIX_FMT_RGB32,     CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1147. #else

  1148. #if CONFIG_SWSCALE_ALPHA

  1149. YUV2RGBWRAPPER(yuv2rgb,, a32_1,  AV_PIX_FMT_RGB32_1,   1)

  1150. YUV2RGBWRAPPER(yuv2rgb,, a32,    AV_PIX_FMT_RGB32,     1)

  1151. #endif

  1152. YUV2RGBWRAPPER(yuv2rgb,, x32_1,  AV_PIX_FMT_RGB32_1,   0)

  1153. YUV2RGBWRAPPER(yuv2rgb,, x32,    AV_PIX_FMT_RGB32,     0)

  1154. #endif

  1155. YUV2RGBWRAPPER(yuv2, rgb, rgb24, AV_PIX_FMT_RGB24,   0)

  1156. YUV2RGBWRAPPER(yuv2, rgb, bgr24, AV_PIX_FMT_BGR24,   0)

  1157. YUV2RGBWRAPPER(yuv2rgb,,  16,    AV_PIX_FMT_RGB565,    0)

  1158. YUV2RGBWRAPPER(yuv2rgb,,  15,    AV_PIX_FMT_RGB555,    0)

  1159. YUV2RGBWRAPPER(yuv2rgb,,  12,    AV_PIX_FMT_RGB444,    0)

  1160. YUV2RGBWRAPPER(yuv2rgb,,   8,    AV_PIX_FMT_RGB8,      0)

  1161. YUV2RGBWRAPPER(yuv2rgb,,   4,    AV_PIX_FMT_RGB4,      0)

  1162. YUV2RGBWRAPPER(yuv2rgb,,   4b,   AV_PIX_FMT_RGB4_BYTE, 0)

  1163. 

  1164. static av_always_inline void

  1165. yuv2rgb_full_X_c_template(SwsContext *c, const int16_t *lumFilter,

  1166.                           const int16_t **lumSrc, int lumFilterSize,

  1167.                           const int16_t *chrFilter, const int16_t **chrUSrc,

  1168.                           const int16_t **chrVSrc, int chrFilterSize,

  1169.                           const int16_t **alpSrc, uint8_t *dest,

  1170.                           int dstW, int y, enum AVPixelFormat target, int hasAlpha)

  1171. {

  1172.     int i;

  1173.     int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;

  1174. 

  1175.     for (i = 0; i < dstW; i++) {

  1176.         int j;

  1177.         int Y = 0;

  1178.         int U = SHIFT_LEFT(-128, 19);

  1179.         int V = SHIFT_LEFT(-128, 19);

  1180.         int R, G, B, A;

  1181. 

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

  1183.             Y += lumSrc[j][i] * lumFilter[j];

  1184.         }

  1185.         for (j = 0; j < chrFilterSize; j++) {

  1186.             U += chrUSrc[j][i] * chrFilter[j];

  1187.             V += chrVSrc[j][i] * chrFilter[j];

  1188.         }

  1189.         Y >>= 10;

  1190.         U >>= 10;

  1191.         V >>= 10;

  1192.         if (hasAlpha) {

  1193.             A = 1 << 21;

  1194.             for (j = 0; j < lumFilterSize; j++) {

  1195.                 A += alpSrc[j][i] * lumFilter[j];

  1196.             }

  1197.             A >>= 19;

  1198.             if (A & 0x100)

  1199.                 A = av_clip_uint8(A);

  1200.         }

  1201.         Y -= c->yuv2rgb_y_offset;

  1202.         Y *= c->yuv2rgb_y_coeff;

  1203.         Y += 1 << 21;

  1204.         R = Y + V*c->yuv2rgb_v2r_coeff;

  1205.         G = Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;

  1206.         B = Y +                          U*c->yuv2rgb_u2b_coeff;

  1207.         if ((R | G | B) & 0xC0000000) {

  1208.             R = av_clip_uintp2(R, 30);

  1209.             G = av_clip_uintp2(G, 30);

  1210.             B = av_clip_uintp2(B, 30);

  1211.         }

  1212. 

  1213.         switch(target) {

  1214.         case AV_PIX_FMT_ARGB:

  1215.             dest[0] = hasAlpha ? A : 255;

  1216.             dest[1] = R >> 22;

  1217.             dest[2] = G >> 22;

  1218.             dest[3] = B >> 22;

  1219.             break;

  1220.         case AV_PIX_FMT_RGB24:

  1221.             dest[0] = R >> 22;

  1222.             dest[1] = G >> 22;

  1223.             dest[2] = B >> 22;

  1224.             break;

  1225.         case AV_PIX_FMT_RGBA:

  1226.             dest[0] = R >> 22;

  1227.             dest[1] = G >> 22;

  1228.             dest[2] = B >> 22;

  1229.             dest[3] = hasAlpha ? A : 255;

  1230.             break;

  1231.         case AV_PIX_FMT_ABGR:

  1232.             dest[0] = hasAlpha ? A : 255;

  1233.             dest[1] = B >> 22;

  1234.             dest[2] = G >> 22;

  1235.             dest[3] = R >> 22;

  1236.             dest += 4;

  1237.             break;

  1238.         case AV_PIX_FMT_BGR24:

  1239.             dest[0] = B >> 22;

  1240.             dest[1] = G >> 22;

  1241.             dest[2] = R >> 22;

  1242.             break;

  1243.         case AV_PIX_FMT_BGRA:

  1244.             dest[0] = B >> 22;

  1245.             dest[1] = G >> 22;

  1246.             dest[2] = R >> 22;

  1247.             dest[3] = hasAlpha ? A : 255;

  1248.             break;

  1249.         }

  1250.         dest += step;

  1251.     }

  1252. }

  1253. 

  1254. #if CONFIG_SMALL

  1255. YUV2RGBWRAPPERX(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1256. YUV2RGBWRAPPERX(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1257. YUV2RGBWRAPPERX(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1258. YUV2RGBWRAPPERX(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  CONFIG_SWSCALE_ALPHA && c->alpPixBuf)

  1259. #else

  1260. #if CONFIG_SWSCALE_ALPHA

  1261. YUV2RGBWRAPPERX(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  1)

  1262. YUV2RGBWRAPPERX(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  1)

  1263. YUV2RGBWRAPPERX(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  1)

  1264. YUV2RGBWRAPPERX(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  1)

  1265. #endif

  1266. YUV2RGBWRAPPERX(yuv2, rgb_full, bgrx32_full, AV_PIX_FMT_BGRA,  0)

  1267. YUV2RGBWRAPPERX(yuv2, rgb_full, xbgr32_full, AV_PIX_FMT_ABGR,  0)

  1268. YUV2RGBWRAPPERX(yuv2, rgb_full, rgbx32_full, AV_PIX_FMT_RGBA,  0)

  1269. YUV2RGBWRAPPERX(yuv2, rgb_full, xrgb32_full, AV_PIX_FMT_ARGB,  0)

  1270. #endif

  1271. YUV2RGBWRAPPERX(yuv2, rgb_full, bgr24_full,  AV_PIX_FMT_BGR24, 0)

  1272. YUV2RGBWRAPPERX(yuv2, rgb_full, rgb24_full,  AV_PIX_FMT_RGB24, 0)

  1273. 

  1274. static void

  1275. yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter,

  1276.                   const int16_t **lumSrc, int lumFilterSize,

  1277.                   const int16_t *chrFilter, const int16_t **chrUSrc,

  1278.                   const int16_t **chrVSrc, int chrFilterSize,

  1279.                   const int16_t **alpSrc, uint8_t **dest,

  1280.                   int dstW, int y)

  1281. {

  1282.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->dstFormat);

  1283.     int i;

  1284.     int hasAlpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA) && alpSrc;

  1285.     uint16_t **dest16 = (uint16_t**)dest;

  1286.     int SH = 22 + 8 - desc->comp[0].depth;

  1287. 

  1288.     for (i = 0; i < dstW; i++) {

  1289.         int j;

  1290.         int Y = 1 << 9;

  1291.         int U = (1 << 9) - (128 << 19);

  1292.         int V = (1 << 9) - (128 << 19);

  1293.         int R, G, B, A;

  1294. 

  1295.         for (j = 0; j < lumFilterSize; j++)

  1296.             Y += lumSrc[j][i] * lumFilter[j];

  1297. 

  1298.         for (j = 0; j < chrFilterSize; j++) {

  1299.             U += chrUSrc[j][i] * chrFilter[j];

  1300.             V += chrVSrc[j][i] * chrFilter[j];

  1301.         }

  1302. 

  1303.         Y >>= 10;

  1304.         U >>= 10;

  1305.         V >>= 10;

  1306. 

  1307.         if (hasAlpha) {

  1308.             A = 1 << 18;

  1309. 

  1310.             for (j = 0; j < lumFilterSize; j++)

  1311.                 A += alpSrc[j][i] * lumFilter[j];

  1312. 

  1313.             A >>= 19;

  1314. 

  1315.             if (A & 0x100)

  1316.                 A = av_clip_uint8(A);

  1317.         }

  1318. 

  1319.         Y -= c->yuv2rgb_y_offset;

  1320.         Y *= c->yuv2rgb_y_coeff;

  1321.         Y += 1 << 21;

  1322.         R = Y + V * c->yuv2rgb_v2r_coeff;

  1323.         G = Y + V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;

  1324.         B = Y +                            U * c->yuv2rgb_u2b_coeff;

  1325. 

  1326.         if ((R | G | B) & 0xC0000000) {

  1327.             R = av_clip_uintp2(R, 30);

  1328.             G = av_clip_uintp2(G, 30);

  1329.             B = av_clip_uintp2(B, 30);

  1330.         }

  1331. 

  1332.         if (SH != 22) {

  1333.             dest16[0][i] = G >> SH;

  1334.             dest16[1][i] = B >> SH;

  1335.             dest16[2][i] = R >> SH;

  1336.             if (hasAlpha)

  1337.                 dest16[3][i] = A;

  1338.         } else {

  1339.             dest[0][i] = G >> 22;

  1340.             dest[1][i] = B >> 22;

  1341.             dest[2][i] = R >> 22;

  1342.             if (hasAlpha)

  1343.                 dest[3][i] = A;

  1344.         }

  1345.     }

  1346.     if (SH != 22 && (!isBE(c->dstFormat)) != (!HAVE_BIGENDIAN)) {

  1347.         for (i = 0; i < dstW; i++) {

  1348.             dest16[0][i] = av_bswap16(dest16[0][i]);

  1349.             dest16[1][i] = av_bswap16(dest16[1][i]);

  1350.             dest16[2][i] = av_bswap16(dest16[2][i]);

  1351.             if (hasAlpha)

  1352.                 dest16[3][i] = av_bswap16(dest16[3][i]);

  1353.         }

  1354.     }

  1355. }

  1356. 

  1357. av_cold void ff_sws_init_output_funcs(SwsContext *c,

  1358.                                       yuv2planar1_fn *yuv2plane1,

  1359.                                       yuv2planarX_fn *yuv2planeX,

  1360.                                       yuv2interleavedX_fn *yuv2nv12cX,

  1361.                                       yuv2packed1_fn *yuv2packed1,

  1362.                                       yuv2packed2_fn *yuv2packed2,

  1363.                                       yuv2packedX_fn *yuv2packedX,

  1364.                                       yuv2anyX_fn *yuv2anyX)

  1365. {

  1366.     enum AVPixelFormat dstFormat = c->dstFormat;

  1367.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);

  1368. 

  1369.     if (is16BPS(dstFormat)) {

  1370.         *yuv2planeX = isBE(dstFormat) ? yuv2planeX_16BE_c  : yuv2planeX_16LE_c;

  1371.         *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_16BE_c  : yuv2plane1_16LE_c;

  1372.     } else if (is9_15BPS(dstFormat)) {

  1373.         if (desc->comp[0].depth == 9) {

  1374.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_9BE_c  : yuv2planeX_9LE_c;

  1375.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_9BE_c  : yuv2plane1_9LE_c;

  1376.         } else if (desc->comp[0].depth == 10) {

  1377.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_10BE_c  : yuv2planeX_10LE_c;

  1378.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_10BE_c  : yuv2plane1_10LE_c;

  1379.         } else if (desc->comp[0].depth == 12) {

  1380.             *yuv2planeX = isBE(dstFormat) ? yuv2planeX_12BE_c  : yuv2planeX_12LE_c;

  1381.             *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_12BE_c  : yuv2plane1_12LE_c;

  1382.         } else {

  1383.             assert(0);

  1384.         }

  1385.     } else {

  1386.         *yuv2plane1 = yuv2plane1_8_c;

  1387.         *yuv2planeX = yuv2planeX_8_c;

  1388.         if (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)

  1389.             *yuv2nv12cX = yuv2nv12cX_c;

  1390.     }

  1391. 

  1392.     if(c->flags & SWS_FULL_CHR_H_INT) {

  1393.         switch (dstFormat) {

  1394.             case AV_PIX_FMT_RGBA:

  1395. #if CONFIG_SMALL

  1396.                 *yuv2packedX = yuv2rgba32_full_X_c;

  1397. #else

  1398. #if CONFIG_SWSCALE_ALPHA

  1399.                 if (c->alpPixBuf) {

  1400.                     *yuv2packedX = yuv2rgba32_full_X_c;

  1401.                 } else

  1402. #endif /* CONFIG_SWSCALE_ALPHA */

  1403.                 {

  1404.                     *yuv2packedX = yuv2rgbx32_full_X_c;

  1405.                 }

  1406. #endif /* !CONFIG_SMALL */

  1407.                 break;

  1408.             case AV_PIX_FMT_ARGB:

  1409. #if CONFIG_SMALL

  1410.                 *yuv2packedX = yuv2argb32_full_X_c;

  1411. #else

  1412. #if CONFIG_SWSCALE_ALPHA

  1413.                 if (c->alpPixBuf) {

  1414.                     *yuv2packedX = yuv2argb32_full_X_c;

  1415.                 } else

  1416. #endif /* CONFIG_SWSCALE_ALPHA */

  1417.                 {

  1418.                     *yuv2packedX = yuv2xrgb32_full_X_c;

  1419.                 }

  1420. #endif /* !CONFIG_SMALL */

  1421.                 break;

  1422.             case AV_PIX_FMT_BGRA:

  1423. #if CONFIG_SMALL

  1424.                 *yuv2packedX = yuv2bgra32_full_X_c;

  1425. #else

  1426. #if CONFIG_SWSCALE_ALPHA

  1427.                 if (c->alpPixBuf) {

  1428.                     *yuv2packedX = yuv2bgra32_full_X_c;

  1429.                 } else

  1430. #endif /* CONFIG_SWSCALE_ALPHA */

  1431.                 {

  1432.                     *yuv2packedX = yuv2bgrx32_full_X_c;

  1433.                 }

  1434. #endif /* !CONFIG_SMALL */

  1435.                 break;

  1436.             case AV_PIX_FMT_ABGR:

  1437. #if CONFIG_SMALL

  1438.                 *yuv2packedX = yuv2abgr32_full_X_c;

  1439. #else

  1440. #if CONFIG_SWSCALE_ALPHA

  1441.                 if (c->alpPixBuf) {

  1442.                     *yuv2packedX = yuv2abgr32_full_X_c;

  1443.                 } else

  1444. #endif /* CONFIG_SWSCALE_ALPHA */

  1445.                 {

  1446.                     *yuv2packedX = yuv2xbgr32_full_X_c;

  1447.                 }

  1448. #endif /* !CONFIG_SMALL */

  1449.                 break;

  1450.             case AV_PIX_FMT_RGB24:

  1451.             *yuv2packedX = yuv2rgb24_full_X_c;

  1452.             break;

  1453.         case AV_PIX_FMT_BGR24:

  1454.             *yuv2packedX = yuv2bgr24_full_X_c;

  1455.             break;

  1456.         case AV_PIX_FMT_GBRP:

  1457.         case AV_PIX_FMT_GBRP9BE:

  1458.         case AV_PIX_FMT_GBRP9LE:

  1459.         case AV_PIX_FMT_GBRP10BE:

  1460.         case AV_PIX_FMT_GBRP10LE:

  1461.         case AV_PIX_FMT_GBRP12BE:

  1462.         case AV_PIX_FMT_GBRP12LE:

  1463.         case AV_PIX_FMT_GBRAP10BE:

  1464.         case AV_PIX_FMT_GBRAP10LE:

  1465.         case AV_PIX_FMT_GBRAP12BE:

  1466.         case AV_PIX_FMT_GBRAP12LE:

  1467.         case AV_PIX_FMT_GBRP16BE:

  1468.         case AV_PIX_FMT_GBRP16LE:

  1469.         case AV_PIX_FMT_GBRAP:

  1470.             *yuv2anyX = yuv2gbrp_full_X_c;

  1471.             break;

  1472.         }

  1473.     } else {

  1474.         switch (dstFormat) {

  1475.         case AV_PIX_FMT_RGB48LE:

  1476.             *yuv2packed1 = yuv2rgb48le_1_c;

  1477.             *yuv2packed2 = yuv2rgb48le_2_c;

  1478.             *yuv2packedX = yuv2rgb48le_X_c;

  1479.             break;

  1480.         case AV_PIX_FMT_RGB48BE:

  1481.             *yuv2packed1 = yuv2rgb48be_1_c;

  1482.             *yuv2packed2 = yuv2rgb48be_2_c;

  1483.             *yuv2packedX = yuv2rgb48be_X_c;

  1484.             break;

  1485.         case AV_PIX_FMT_BGR48LE:

  1486.             *yuv2packed1 = yuv2bgr48le_1_c;

  1487.             *yuv2packed2 = yuv2bgr48le_2_c;

  1488.             *yuv2packedX = yuv2bgr48le_X_c;

  1489.             break;

  1490.         case AV_PIX_FMT_BGR48BE:

  1491.             *yuv2packed1 = yuv2bgr48be_1_c;

  1492.             *yuv2packed2 = yuv2bgr48be_2_c;

  1493.             *yuv2packedX = yuv2bgr48be_X_c;

  1494.             break;

  1495.         case AV_PIX_FMT_RGB32:

  1496.         case AV_PIX_FMT_BGR32:

  1497. #if CONFIG_SMALL

  1498.             *yuv2packed1 = yuv2rgb32_1_c;

  1499.             *yuv2packed2 = yuv2rgb32_2_c;

  1500.             *yuv2packedX = yuv2rgb32_X_c;

  1501. #else

  1502. #if CONFIG_SWSCALE_ALPHA

  1503.                 if (c->alpPixBuf) {

  1504.                     *yuv2packed1 = yuv2rgba32_1_c;

  1505.                     *yuv2packed2 = yuv2rgba32_2_c;

  1506.                     *yuv2packedX = yuv2rgba32_X_c;

  1507.                 } else

  1508. #endif /* CONFIG_SWSCALE_ALPHA */

  1509.                 {

  1510.                     *yuv2packed1 = yuv2rgbx32_1_c;

  1511.                     *yuv2packed2 = yuv2rgbx32_2_c;

  1512.                     *yuv2packedX = yuv2rgbx32_X_c;

  1513.                 }

  1514. #endif /* !CONFIG_SMALL */

  1515.             break;

  1516.         case AV_PIX_FMT_RGB32_1:

  1517.         case AV_PIX_FMT_BGR32_1:

  1518. #if CONFIG_SMALL

  1519.                 *yuv2packed1 = yuv2rgb32_1_1_c;

  1520.                 *yuv2packed2 = yuv2rgb32_1_2_c;

  1521.                 *yuv2packedX = yuv2rgb32_1_X_c;

  1522. #else

  1523. #if CONFIG_SWSCALE_ALPHA

  1524.                 if (c->alpPixBuf) {

  1525.                     *yuv2packed1 = yuv2rgba32_1_1_c;

  1526.                     *yuv2packed2 = yuv2rgba32_1_2_c;

  1527.                     *yuv2packedX = yuv2rgba32_1_X_c;

  1528.                 } else

  1529. #endif /* CONFIG_SWSCALE_ALPHA */

  1530.                 {

  1531.                     *yuv2packed1 = yuv2rgbx32_1_1_c;

  1532.                     *yuv2packed2 = yuv2rgbx32_1_2_c;

  1533.                     *yuv2packedX = yuv2rgbx32_1_X_c;

  1534.                 }

  1535. #endif /* !CONFIG_SMALL */

  1536.                 break;

  1537.         case AV_PIX_FMT_RGB24:

  1538.             *yuv2packed1 = yuv2rgb24_1_c;

  1539.             *yuv2packed2 = yuv2rgb24_2_c;

  1540.             *yuv2packedX = yuv2rgb24_X_c;

  1541.             break;

  1542.         case AV_PIX_FMT_BGR24:

  1543.             *yuv2packed1 = yuv2bgr24_1_c;

  1544.             *yuv2packed2 = yuv2bgr24_2_c;

  1545.             *yuv2packedX = yuv2bgr24_X_c;

  1546.             break;

  1547.         case AV_PIX_FMT_RGB565LE:

  1548.         case AV_PIX_FMT_RGB565BE:

  1549.         case AV_PIX_FMT_BGR565LE:

  1550.         case AV_PIX_FMT_BGR565BE:

  1551.             *yuv2packed1 = yuv2rgb16_1_c;

  1552.             *yuv2packed2 = yuv2rgb16_2_c;

  1553.             *yuv2packedX = yuv2rgb16_X_c;

  1554.             break;

  1555.         case AV_PIX_FMT_RGB555LE:

  1556.         case AV_PIX_FMT_RGB555BE:

  1557.         case AV_PIX_FMT_BGR555LE:

  1558.         case AV_PIX_FMT_BGR555BE:

  1559.             *yuv2packed1 = yuv2rgb15_1_c;

  1560.             *yuv2packed2 = yuv2rgb15_2_c;

  1561.             *yuv2packedX = yuv2rgb15_X_c;

  1562.             break;

  1563.         case AV_PIX_FMT_RGB444LE:

  1564.         case AV_PIX_FMT_RGB444BE:

  1565.         case AV_PIX_FMT_BGR444LE:

  1566.         case AV_PIX_FMT_BGR444BE:

  1567.             *yuv2packed1 = yuv2rgb12_1_c;

  1568.             *yuv2packed2 = yuv2rgb12_2_c;

  1569.             *yuv2packedX = yuv2rgb12_X_c;

  1570.             break;

  1571.         case AV_PIX_FMT_RGB8:

  1572.         case AV_PIX_FMT_BGR8:

  1573.             *yuv2packed1 = yuv2rgb8_1_c;

  1574.             *yuv2packed2 = yuv2rgb8_2_c;

  1575.             *yuv2packedX = yuv2rgb8_X_c;

  1576.             break;

  1577.         case AV_PIX_FMT_RGB4:

  1578.         case AV_PIX_FMT_BGR4:

  1579.             *yuv2packed1 = yuv2rgb4_1_c;

  1580.             *yuv2packed2 = yuv2rgb4_2_c;

  1581.             *yuv2packedX = yuv2rgb4_X_c;

  1582.             break;

  1583.         case AV_PIX_FMT_RGB4_BYTE:

  1584.         case AV_PIX_FMT_BGR4_BYTE:

  1585.             *yuv2packed1 = yuv2rgb4b_1_c;

  1586.             *yuv2packed2 = yuv2rgb4b_2_c;

  1587.             *yuv2packedX = yuv2rgb4b_X_c;

  1588.             break;

  1589.         }

  1590.     }

  1591.     switch (dstFormat) {

  1592.     case AV_PIX_FMT_MONOWHITE:

  1593.         *yuv2packed1 = yuv2monowhite_1_c;

  1594.         *yuv2packed2 = yuv2monowhite_2_c;

  1595.         *yuv2packedX = yuv2monowhite_X_c;

  1596.         break;

  1597.     case AV_PIX_FMT_MONOBLACK:

  1598.         *yuv2packed1 = yuv2monoblack_1_c;

  1599.         *yuv2packed2 = yuv2monoblack_2_c;

  1600.         *yuv2packedX = yuv2monoblack_X_c;

  1601.         break;

  1602.     case AV_PIX_FMT_YUYV422:

  1603.         *yuv2packed1 = yuv2yuyv422_1_c;

  1604.         *yuv2packed2 = yuv2yuyv422_2_c;

  1605.         *yuv2packedX = yuv2yuyv422_X_c;

  1606.         break;

  1607.     case AV_PIX_FMT_YVYU422:

  1608.         *yuv2packed1 = yuv2yvyu422_1_c;

  1609.         *yuv2packed2 = yuv2yvyu422_2_c;

  1610.         *yuv2packedX = yuv2yvyu422_X_c;

  1611.         break;

  1612.     case AV_PIX_FMT_UYVY422:

  1613.         *yuv2packed1 = yuv2uyvy422_1_c;

  1614.         *yuv2packed2 = yuv2uyvy422_2_c;

  1615.         *yuv2packedX = yuv2uyvy422_X_c;

  1616.         break;

  1617.     }

  1618. }