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FFmpeg/libswscale/swscale.c

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  1. /*

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

  3.  *

  4.  * This file is part of FFmpeg.

  5.  *

  6.  * FFmpeg 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.  * FFmpeg 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 FFmpeg; if not, write to the Free Software

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

  19.  */

  20. 

  21. /*

  22.   supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8

  23.   supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09

  24.   {BGR,RGB}{1,4,8,15,16} support dithering

  25. 

  26.   unscaled special converters (YV12=I420=IYUV, Y800=Y8)

  27.   YV12 -> {BGR,RGB}{1,4,8,12,15,16,24,32}

  28.   x -> x

  29.   YUV9 -> YV12

  30.   YUV9/YV12 -> Y800

  31.   Y800 -> YUV9/YV12

  32.   BGR24 -> BGR32 & RGB24 -> RGB32

  33.   BGR32 -> BGR24 & RGB32 -> RGB24

  34.   BGR15 -> BGR16

  35. */

  36. 

  37. /*

  38. tested special converters (most are tested actually, but I did not write it down ...)

  39.  YV12 -> BGR12/BGR16

  40.  YV12 -> YV12

  41.  BGR15 -> BGR16

  42.  BGR16 -> BGR16

  43.  YVU9 -> YV12

  44. 

  45. untested special converters

  46.   YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)

  47.   YV12/I420 -> YV12/I420

  48.   YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format

  49.   BGR24 -> BGR32 & RGB24 -> RGB32

  50.   BGR32 -> BGR24 & RGB32 -> RGB24

  51.   BGR24 -> YV12

  52. */

  53. 

  54. #include <inttypes.h>

  55. #include <string.h>

  56. #include <math.h>

  57. #include <stdio.h>

  58. #include "config.h"

  59. #include <assert.h>

  60. #include "swscale.h"

  61. #include "swscale_internal.h"

  62. #include "rgb2rgb.h"

  63. #include "libavutil/intreadwrite.h"

  64. #include "libavutil/x86_cpu.h"

  65. #include "libavutil/avutil.h"

  66. #include "libavutil/mathematics.h"

  67. #include "libavutil/bswap.h"

  68. #include "libavutil/pixdesc.h"

  69. 

  70. #undef MOVNTQ

  71. #undef PAVGB

  72. 

  73. //#undef HAVE_MMX2

  74. //#define HAVE_AMD3DNOW

  75. //#undef HAVE_MMX

  76. //#undef ARCH_X86

  77. #define DITHER1XBPP

  78. 

  79. #define isPacked(x)         (       \

  80.            (x)==PIX_FMT_PAL8        \

  81.         || (x)==PIX_FMT_YUYV422     \

  82.         || (x)==PIX_FMT_UYVY422     \

  83.         || (x)==PIX_FMT_GRAY8A       \

  84.         || isAnyRGB(x)              \

  85.     )

  86. 

  87. #define RGB2YUV_SHIFT 15

  88. #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))

  89. #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  90. #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  91. #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))

  92. #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  93. #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  94. #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))

  95. #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  96. #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))

  97. 

  98. static const double rgb2yuv_table[8][9]={

  99.     {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709

  100.     {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709

  101.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  102.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  103.     {0.59  , 0.11  , 0.30  , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC

  104.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  105.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  106.     {0.701 , 0.087 , 0.212 , -0.384, 0.5, -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M

  107. };

  108. 

  109. /*

  110. NOTES

  111. Special versions: fast Y 1:1 scaling (no interpolation in y direction)

  112. 

  113. TODO

  114. more intelligent misalignment avoidance for the horizontal scaler

  115. write special vertical cubic upscale version

  116. optimize C code (YV12 / minmax)

  117. add support for packed pixel YUV input & output

  118. add support for Y8 output

  119. optimize BGR24 & BGR32

  120. add BGR4 output support

  121. write special BGR->BGR scaler

  122. */

  123. 

  124. #if ARCH_X86

  125. DECLARE_ASM_CONST(8, uint64_t, bF8)=       0xF8F8F8F8F8F8F8F8LL;

  126. DECLARE_ASM_CONST(8, uint64_t, bFC)=       0xFCFCFCFCFCFCFCFCLL;

  127. DECLARE_ASM_CONST(8, uint64_t, w10)=       0x0010001000100010LL;

  128. DECLARE_ASM_CONST(8, uint64_t, w02)=       0x0002000200020002LL;

  129. DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;

  130. DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;

  131. DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;

  132. DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;

  133. 

  134. const DECLARE_ALIGNED(8, uint64_t, ff_dither4)[2] = {

  135.         0x0103010301030103LL,

  136.         0x0200020002000200LL,};

  137. 

  138. const DECLARE_ALIGNED(8, uint64_t, ff_dither8)[2] = {

  139.         0x0602060206020602LL,

  140.         0x0004000400040004LL,};

  141. 

  142. DECLARE_ASM_CONST(8, uint64_t, b16Mask)=   0x001F001F001F001FLL;

  143. DECLARE_ASM_CONST(8, uint64_t, g16Mask)=   0x07E007E007E007E0LL;

  144. DECLARE_ASM_CONST(8, uint64_t, r16Mask)=   0xF800F800F800F800LL;

  145. DECLARE_ASM_CONST(8, uint64_t, b15Mask)=   0x001F001F001F001FLL;

  146. DECLARE_ASM_CONST(8, uint64_t, g15Mask)=   0x03E003E003E003E0LL;

  147. DECLARE_ASM_CONST(8, uint64_t, r15Mask)=   0x7C007C007C007C00LL;

  148. 

  149. DECLARE_ALIGNED(8, const uint64_t, ff_M24A)         = 0x00FF0000FF0000FFLL;

  150. DECLARE_ALIGNED(8, const uint64_t, ff_M24B)         = 0xFF0000FF0000FF00LL;

  151. DECLARE_ALIGNED(8, const uint64_t, ff_M24C)         = 0x0000FF0000FF0000LL;

  152. 

  153. #ifdef FAST_BGR2YV12

  154. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff)   = 0x000000210041000DULL;

  155. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff)   = 0x0000FFEEFFDC0038ULL;

  156. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff)   = 0x00000038FFD2FFF8ULL;

  157. #else

  158. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff)   = 0x000020E540830C8BULL;

  159. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff)   = 0x0000ED0FDAC23831ULL;

  160. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff)   = 0x00003831D0E6F6EAULL;

  161. #endif /* FAST_BGR2YV12 */

  162. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset)  = 0x1010101010101010ULL;

  163. DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;

  164. DECLARE_ALIGNED(8, const uint64_t, ff_w1111)        = 0x0001000100010001ULL;

  165. 

  166. DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;

  167. DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;

  168. DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;

  169. DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;

  170. DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;

  171. 

  172. DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV)[2][4] = {

  173.     {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},

  174.     {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},

  175. };

  176. 

  177. DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;

  178. 

  179. #endif /* ARCH_X86 */

  180. 

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

  182. {  1,   3,   1,   3,   1,   3,   1,   3, },

  183. {  2,   0,   2,   0,   2,   0,   2,   0, },

  184. };

  185. 

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

  187. {  6,   2,   6,   2,   6,   2,   6,   2, },

  188. {  0,   4,   0,   4,   0,   4,   0,   4, },

  189. };

  190. 

  191. DECLARE_ALIGNED(8, const uint8_t, dither_4x4_16)[4][8]={

  192. {  8,   4,  11,   7,   8,   4,  11,   7, },

  193. {  2,  14,   1,  13,   2,  14,   1,  13, },

  194. { 10,   6,   9,   5,  10,   6,   9,   5, },

  195. {  0,  12,   3,  15,   0,  12,   3,  15, },

  196. };

  197. 

  198. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32)[8][8]={

  199. { 17,   9,  23,  15,  16,   8,  22,  14, },

  200. {  5,  29,   3,  27,   4,  28,   2,  26, },

  201. { 21,  13,  19,  11,  20,  12,  18,  10, },

  202. {  0,  24,   6,  30,   1,  25,   7,  31, },

  203. { 16,   8,  22,  14,  17,   9,  23,  15, },

  204. {  4,  28,   2,  26,   5,  29,   3,  27, },

  205. { 20,  12,  18,  10,  21,  13,  19,  11, },

  206. {  1,  25,   7,  31,   0,  24,   6,  30, },

  207. };

  208. 

  209. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_73)[8][8]={

  210. {  0,  55,  14,  68,   3,  58,  17,  72, },

  211. { 37,  18,  50,  32,  40,  22,  54,  35, },

  212. {  9,  64,   5,  59,  13,  67,   8,  63, },

  213. { 46,  27,  41,  23,  49,  31,  44,  26, },

  214. {  2,  57,  16,  71,   1,  56,  15,  70, },

  215. { 39,  21,  52,  34,  38,  19,  51,  33, },

  216. { 11,  66,   7,  62,  10,  65,   6,  60, },

  217. { 48,  30,  43,  25,  47,  29,  42,  24, },

  218. };

  219. 

  220. #if 1

  221. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={

  222. {117,  62, 158, 103, 113,  58, 155, 100, },

  223. { 34, 199,  21, 186,  31, 196,  17, 182, },

  224. {144,  89, 131,  76, 141,  86, 127,  72, },

  225. {  0, 165,  41, 206,  10, 175,  52, 217, },

  226. {110,  55, 151,  96, 120,  65, 162, 107, },

  227. { 28, 193,  14, 179,  38, 203,  24, 189, },

  228. {138,  83, 124,  69, 148,  93, 134,  79, },

  229. {  7, 172,  48, 213,   3, 168,  45, 210, },

  230. };

  231. #elif 1

  232. // tries to correct a gamma of 1.5

  233. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={

  234. {  0, 143,  18, 200,   2, 156,  25, 215, },

  235. { 78,  28, 125,  64,  89,  36, 138,  74, },

  236. { 10, 180,   3, 161,  16, 195,   8, 175, },

  237. {109,  51,  93,  38, 121,  60, 105,  47, },

  238. {  1, 152,  23, 210,   0, 147,  20, 205, },

  239. { 85,  33, 134,  71,  81,  30, 130,  67, },

  240. { 14, 190,   6, 171,  12, 185,   5, 166, },

  241. {117,  57, 101,  44, 113,  54,  97,  41, },

  242. };

  243. #elif 1

  244. // tries to correct a gamma of 2.0

  245. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={

  246. {  0, 124,   8, 193,   0, 140,  12, 213, },

  247. { 55,  14, 104,  42,  66,  19, 119,  52, },

  248. {  3, 168,   1, 145,   6, 187,   3, 162, },

  249. { 86,  31,  70,  21,  99,  39,  82,  28, },

  250. {  0, 134,  11, 206,   0, 129,   9, 200, },

  251. { 62,  17, 114,  48,  58,  16, 109,  45, },

  252. {  5, 181,   2, 157,   4, 175,   1, 151, },

  253. { 95,  36,  78,  26,  90,  34,  74,  24, },

  254. };

  255. #else

  256. // tries to correct a gamma of 2.5

  257. DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={

  258. {  0, 107,   3, 187,   0, 125,   6, 212, },

  259. { 39,   7,  86,  28,  49,  11, 102,  36, },

  260. {  1, 158,   0, 131,   3, 180,   1, 151, },

  261. { 68,  19,  52,  12,  81,  25,  64,  17, },

  262. {  0, 119,   5, 203,   0, 113,   4, 195, },

  263. { 45,   9,  96,  33,  42,   8,  91,  30, },

  264. {  2, 172,   1, 144,   2, 165,   0, 137, },

  265. { 77,  23,  60,  15,  72,  21,  56,  14, },

  266. };

  267. #endif

  268. 

  269. static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  270.                                                     const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  271.                                                     const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,

  272.                                                     int dstW, int chrDstW, int big_endian)

  273. {

  274.     //FIXME Optimize (just quickly written not optimized..)

  275.     int i;

  276. 

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

  278.         int val = 1 << 10;

  279.         int j;

  280. 

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

  282.             val += lumSrc[j][i] * lumFilter[j];

  283. 

  284.         if (big_endian) {

  285.             AV_WB16(&dest[i], av_clip_uint16(val >> 11));

  286.         } else {

  287.             AV_WL16(&dest[i], av_clip_uint16(val >> 11));

  288.         }

  289.     }

  290. 

  291.     if (uDest) {

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

  293.             int u = 1 << 10;

  294.             int v = 1 << 10;

  295.             int j;

  296. 

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

  298.                 u += chrSrc[j][i       ] * chrFilter[j];

  299.                 v += chrSrc[j][i + VOFW] * chrFilter[j];

  300.             }

  301. 

  302.             if (big_endian) {

  303.                 AV_WB16(&uDest[i], av_clip_uint16(u >> 11));

  304.                 AV_WB16(&vDest[i], av_clip_uint16(v >> 11));

  305.             } else {

  306.                 AV_WL16(&uDest[i], av_clip_uint16(u >> 11));

  307.                 AV_WL16(&vDest[i], av_clip_uint16(v >> 11));

  308.             }

  309.         }

  310.     }

  311. 

  312.     if (CONFIG_SWSCALE_ALPHA && aDest) {

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

  314.             int val = 1 << 10;

  315.             int j;

  316. 

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

  318.                 val += alpSrc[j][i] * lumFilter[j];

  319. 

  320.             if (big_endian) {

  321.                 AV_WB16(&aDest[i], av_clip_uint16(val >> 11));

  322.             } else {

  323.                 AV_WL16(&aDest[i], av_clip_uint16(val >> 11));

  324.             }

  325.         }

  326.     }

  327. }

  328. 

  329. static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  330.                                  const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  331.                                  const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,

  332.                                  enum PixelFormat dstFormat)

  333. {

  334.     if (isBE(dstFormat)) {

  335.         yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,

  336.                                chrFilter, chrSrc, chrFilterSize,

  337.                                alpSrc,

  338.                                dest, uDest, vDest, aDest,

  339.                                dstW, chrDstW, 1);

  340.     } else {

  341.         yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,

  342.                                chrFilter, chrSrc, chrFilterSize,

  343.                                alpSrc,

  344.                                dest, uDest, vDest, aDest,

  345.                                dstW, chrDstW, 0);

  346.     }

  347. }

  348. 

  349. static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  350.                                const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  351.                                const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)

  352. {

  353.     //FIXME Optimize (just quickly written not optimized..)

  354.     int i;

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

  356.         int val=1<<18;

  357.         int j;

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

  359.             val += lumSrc[j][i] * lumFilter[j];

  360. 

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

  362.     }

  363. 

  364.     if (uDest)

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

  366.             int u=1<<18;

  367.             int v=1<<18;

  368.             int j;

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

  370.                 u += chrSrc[j][i] * chrFilter[j];

  371.                 v += chrSrc[j][i + VOFW] * chrFilter[j];

  372.             }

  373. 

  374.             uDest[i]= av_clip_uint8(u>>19);

  375.             vDest[i]= av_clip_uint8(v>>19);

  376.         }

  377. 

  378.     if (CONFIG_SWSCALE_ALPHA && aDest)

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

  380.             int val=1<<18;

  381.             int j;

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

  383.                 val += alpSrc[j][i] * lumFilter[j];

  384. 

  385.             aDest[i]= av_clip_uint8(val>>19);

  386.         }

  387. 

  388. }

  389. 

  390. static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  391.                                 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  392.                                 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)

  393. {

  394.     //FIXME Optimize (just quickly written not optimized..)

  395.     int i;

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

  397.         int val=1<<18;

  398.         int j;

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

  400.             val += lumSrc[j][i] * lumFilter[j];

  401. 

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

  403.     }

  404. 

  405.     if (!uDest)

  406.         return;

  407. 

  408.     if (dstFormat == PIX_FMT_NV12)

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

  410.             int u=1<<18;

  411.             int v=1<<18;

  412.             int j;

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

  414.                 u += chrSrc[j][i] * chrFilter[j];

  415.                 v += chrSrc[j][i + VOFW] * chrFilter[j];

  416.             }

  417. 

  418.             uDest[2*i]= av_clip_uint8(u>>19);

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

  420.         }

  421.     else

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

  423.             int u=1<<18;

  424.             int v=1<<18;

  425.             int j;

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

  427.                 u += chrSrc[j][i] * chrFilter[j];

  428.                 v += chrSrc[j][i + VOFW] * chrFilter[j];

  429.             }

  430. 

  431.             uDest[2*i]= av_clip_uint8(v>>19);

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

  433.         }

  434. }

  435. 

  436. #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \

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

  438.         int j;\

  439.         int Y1 = 1<<18;\

  440.         int Y2 = 1<<18;\

  441.         int U  = 1<<18;\

  442.         int V  = 1<<18;\

  443.         int av_unused A1, A2;\

  444.         type av_unused *r, *b, *g;\

  445.         const int i2= 2*i;\

  446.         \

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

  448.             Y1 += lumSrc[j][i2] * lumFilter[j];\

  449.             Y2 += lumSrc[j][i2+1] * lumFilter[j];\

  450.         }\

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

  452.             U += chrSrc[j][i] * chrFilter[j];\

  453.             V += chrSrc[j][i+VOFW] * chrFilter[j];\

  454.         }\

  455.         Y1>>=19;\

  456.         Y2>>=19;\

  457.         U >>=19;\

  458.         V >>=19;\

  459.         if (alpha) {\

  460.             A1 = 1<<18;\

  461.             A2 = 1<<18;\

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

  463.                 A1 += alpSrc[j][i2  ] * lumFilter[j];\

  464.                 A2 += alpSrc[j][i2+1] * lumFilter[j];\

  465.             }\

  466.             A1>>=19;\

  467.             A2>>=19;\

  468.         }

  469. 

  470. #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \

  471.         YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\

  472.         if ((Y1|Y2|U|V)&256) {\

  473.             if (Y1>255)   Y1=255; \

  474.             else if (Y1<0)Y1=0;   \

  475.             if (Y2>255)   Y2=255; \

  476.             else if (Y2<0)Y2=0;   \

  477.             if (U>255)    U=255;  \

  478.             else if (U<0) U=0;    \

  479.             if (V>255)    V=255;  \

  480.             else if (V<0) V=0;    \

  481.         }\

  482.         if (alpha && ((A1|A2)&256)) {\

  483.             A1=av_clip_uint8(A1);\

  484.             A2=av_clip_uint8(A2);\

  485.         }

  486. 

  487. #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \

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

  489.         int j;\

  490.         int Y = 0;\

  491.         int U = -128<<19;\

  492.         int V = -128<<19;\

  493.         int av_unused A;\

  494.         int R,G,B;\

  495.         \

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

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

  498.         }\

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

  500.             U += chrSrc[j][i     ] * chrFilter[j];\

  501.             V += chrSrc[j][i+VOFW] * chrFilter[j];\

  502.         }\

  503.         Y >>=10;\

  504.         U >>=10;\

  505.         V >>=10;\

  506.         if (alpha) {\

  507.             A = rnd;\

  508.             for (j=0; j<lumFilterSize; j++)\

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

  510.             A >>=19;\

  511.             if (A&256)\

  512.                 A = av_clip_uint8(A);\

  513.         }

  514. 

  515. #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \

  516.     YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\

  517.         Y-= c->yuv2rgb_y_offset;\

  518.         Y*= c->yuv2rgb_y_coeff;\

  519.         Y+= rnd;\

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

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

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

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

  524.             if (R>=(256<<22))   R=(256<<22)-1; \

  525.             else if (R<0)R=0;   \

  526.             if (G>=(256<<22))   G=(256<<22)-1; \

  527.             else if (G<0)G=0;   \

  528.             if (B>=(256<<22))   B=(256<<22)-1; \

  529.             else if (B<0)B=0;   \

  530.         }

  531. 

  532. #define YSCALE_YUV_2_GRAY16_C \

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

  534.         int j;\

  535.         int Y1 = 1<<18;\

  536.         int Y2 = 1<<18;\

  537.         int U  = 1<<18;\

  538.         int V  = 1<<18;\

  539.         \

  540.         const int i2= 2*i;\

  541.         \

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

  543.             Y1 += lumSrc[j][i2] * lumFilter[j];\

  544.             Y2 += lumSrc[j][i2+1] * lumFilter[j];\

  545.         }\

  546.         Y1>>=11;\

  547.         Y2>>=11;\

  548.         if ((Y1|Y2|U|V)&65536) {\

  549.             if (Y1>65535)   Y1=65535; \

  550.             else if (Y1<0)Y1=0;   \

  551.             if (Y2>65535)   Y2=65535; \

  552.             else if (Y2<0)Y2=0;   \

  553.         }

  554. 

  555. #define YSCALE_YUV_2_RGBX_C(type,alpha) \

  556.     YSCALE_YUV_2_PACKEDX_C(type,alpha)  /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\

  557.     r = (type *)c->table_rV[V];   \

  558.     g = (type *)(c->table_gU[U] + c->table_gV[V]); \

  559.     b = (type *)c->table_bU[U];

  560. 

  561. #define YSCALE_YUV_2_PACKED2_C(type,alpha)   \

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

  563.         const int i2= 2*i;       \

  564.         int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>19;           \

  565.         int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;           \

  566.         int U= (uvbuf0[i     ]*uvalpha1+uvbuf1[i     ]*uvalpha)>>19;  \

  567.         int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19;  \

  568.         type av_unused *r, *b, *g;                                    \

  569.         int av_unused A1, A2;                                         \

  570.         if (alpha) {\

  571.             A1= (abuf0[i2  ]*yalpha1+abuf1[i2  ]*yalpha)>>19;         \

  572.             A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19;         \

  573.         }

  574. 

  575. #define YSCALE_YUV_2_GRAY16_2_C   \

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

  577.         const int i2= 2*i;       \

  578.         int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>11;           \

  579.         int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11;

  580. 

  581. #define YSCALE_YUV_2_RGB2_C(type,alpha) \

  582.     YSCALE_YUV_2_PACKED2_C(type,alpha)\

  583.     r = (type *)c->table_rV[V];\

  584.     g = (type *)(c->table_gU[U] + c->table_gV[V]);\

  585.     b = (type *)c->table_bU[U];

  586. 

  587. #define YSCALE_YUV_2_PACKED1_C(type,alpha) \

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

  589.         const int i2= 2*i;\

  590.         int Y1= buf0[i2  ]>>7;\

  591.         int Y2= buf0[i2+1]>>7;\

  592.         int U= (uvbuf1[i     ])>>7;\

  593.         int V= (uvbuf1[i+VOFW])>>7;\

  594.         type av_unused *r, *b, *g;\

  595.         int av_unused A1, A2;\

  596.         if (alpha) {\

  597.             A1= abuf0[i2  ]>>7;\

  598.             A2= abuf0[i2+1]>>7;\

  599.         }

  600. 

  601. #define YSCALE_YUV_2_GRAY16_1_C \

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

  603.         const int i2= 2*i;\

  604.         int Y1= buf0[i2  ]<<1;\

  605.         int Y2= buf0[i2+1]<<1;

  606. 

  607. #define YSCALE_YUV_2_RGB1_C(type,alpha) \

  608.     YSCALE_YUV_2_PACKED1_C(type,alpha)\

  609.     r = (type *)c->table_rV[V];\

  610.     g = (type *)(c->table_gU[U] + c->table_gV[V]);\

  611.     b = (type *)c->table_bU[U];

  612. 

  613. #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \

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

  615.         const int i2= 2*i;\

  616.         int Y1= buf0[i2  ]>>7;\

  617.         int Y2= buf0[i2+1]>>7;\

  618.         int U= (uvbuf0[i     ] + uvbuf1[i     ])>>8;\

  619.         int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\

  620.         type av_unused *r, *b, *g;\

  621.         int av_unused A1, A2;\

  622.         if (alpha) {\

  623.             A1= abuf0[i2  ]>>7;\

  624.             A2= abuf0[i2+1]>>7;\

  625.         }

  626. 

  627. #define YSCALE_YUV_2_RGB1B_C(type,alpha) \

  628.     YSCALE_YUV_2_PACKED1B_C(type,alpha)\

  629.     r = (type *)c->table_rV[V];\

  630.     g = (type *)(c->table_gU[U] + c->table_gV[V]);\

  631.     b = (type *)c->table_bU[U];

  632. 

  633. #define YSCALE_YUV_2_MONO2_C \

  634.     const uint8_t * const d128=dither_8x8_220[y&7];\

  635.     uint8_t *g= c->table_gU[128] + c->table_gV[128];\

  636.     for (i=0; i<dstW-7; i+=8) {\

  637.         int acc;\

  638.         acc =       g[((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19) + d128[0]];\

  639.         acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\

  640.         acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\

  641.         acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\

  642.         acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\

  643.         acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\

  644.         acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\

  645.         acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\

  646.         ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\

  647.         dest++;\

  648.     }

  649. 

  650. #define YSCALE_YUV_2_MONOX_C \

  651.     const uint8_t * const d128=dither_8x8_220[y&7];\

  652.     uint8_t *g= c->table_gU[128] + c->table_gV[128];\

  653.     int acc=0;\

  654.     for (i=0; i<dstW-1; i+=2) {\

  655.         int j;\

  656.         int Y1=1<<18;\

  657.         int Y2=1<<18;\

  658. \

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

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

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

  662.         }\

  663.         Y1>>=19;\

  664.         Y2>>=19;\

  665.         if ((Y1|Y2)&256) {\

  666.             if (Y1>255)   Y1=255;\

  667.             else if (Y1<0)Y1=0;\

  668.             if (Y2>255)   Y2=255;\

  669.             else if (Y2<0)Y2=0;\

  670.         }\

  671.         acc+= acc + g[Y1+d128[(i+0)&7]];\

  672.         acc+= acc + g[Y2+d128[(i+1)&7]];\

  673.         if ((i&7)==6) {\

  674.             ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\

  675.             dest++;\

  676.         }\

  677.     }

  678. 

  679. #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\

  680.     switch(c->dstFormat) {\

  681.     case PIX_FMT_RGB48BE:\

  682.     case PIX_FMT_RGB48LE:\

  683.         func(uint8_t,0)\

  684.             ((uint8_t*)dest)[ 0]= r[Y1];\

  685.             ((uint8_t*)dest)[ 1]= r[Y1];\

  686.             ((uint8_t*)dest)[ 2]= g[Y1];\

  687.             ((uint8_t*)dest)[ 3]= g[Y1];\

  688.             ((uint8_t*)dest)[ 4]= b[Y1];\

  689.             ((uint8_t*)dest)[ 5]= b[Y1];\

  690.             ((uint8_t*)dest)[ 6]= r[Y2];\

  691.             ((uint8_t*)dest)[ 7]= r[Y2];\

  692.             ((uint8_t*)dest)[ 8]= g[Y2];\

  693.             ((uint8_t*)dest)[ 9]= g[Y2];\

  694.             ((uint8_t*)dest)[10]= b[Y2];\

  695.             ((uint8_t*)dest)[11]= b[Y2];\

  696.             dest+=12;\

  697.         }\

  698.         break;\

  699.     case PIX_FMT_BGR48BE:\

  700.     case PIX_FMT_BGR48LE:\

  701.         func(uint8_t,0)\

  702.             ((uint8_t*)dest)[ 0] = ((uint8_t*)dest)[ 1] = b[Y1];\

  703.             ((uint8_t*)dest)[ 2] = ((uint8_t*)dest)[ 3] = g[Y1];\

  704.             ((uint8_t*)dest)[ 4] = ((uint8_t*)dest)[ 5] = r[Y1];\

  705.             ((uint8_t*)dest)[ 6] = ((uint8_t*)dest)[ 7] = b[Y2];\

  706.             ((uint8_t*)dest)[ 8] = ((uint8_t*)dest)[ 9] = g[Y2];\

  707.             ((uint8_t*)dest)[10] = ((uint8_t*)dest)[11] = r[Y2];\

  708.             dest+=12;\

  709.         }\

  710.         break;\

  711.     case PIX_FMT_RGBA:\

  712.     case PIX_FMT_BGRA:\

  713.         if (CONFIG_SMALL) {\

  714.             int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\

  715.             func(uint32_t,needAlpha)\

  716.                 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\

  717.                 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\

  718.             }\

  719.         } else {\

  720.             if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\

  721.                 func(uint32_t,1)\

  722.                     ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\

  723.                     ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\

  724.                 }\

  725.             } else {\

  726.                 func(uint32_t,0)\

  727.                     ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\

  728.                     ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\

  729.                 }\

  730.             }\

  731.         }\

  732.         break;\

  733.     case PIX_FMT_ARGB:\

  734.     case PIX_FMT_ABGR:\

  735.         if (CONFIG_SMALL) {\

  736.             int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\

  737.             func(uint32_t,needAlpha)\

  738.                 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\

  739.                 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\

  740.             }\

  741.         } else {\

  742.             if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\

  743.                 func(uint32_t,1)\

  744.                     ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\

  745.                     ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\

  746.                 }\

  747.             } else {\

  748.                 func(uint32_t,0)\

  749.                     ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\

  750.                     ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\

  751.                 }\

  752.             }\

  753.         }                \

  754.         break;\

  755.     case PIX_FMT_RGB24:\

  756.         func(uint8_t,0)\

  757.             ((uint8_t*)dest)[0]= r[Y1];\

  758.             ((uint8_t*)dest)[1]= g[Y1];\

  759.             ((uint8_t*)dest)[2]= b[Y1];\

  760.             ((uint8_t*)dest)[3]= r[Y2];\

  761.             ((uint8_t*)dest)[4]= g[Y2];\

  762.             ((uint8_t*)dest)[5]= b[Y2];\

  763.             dest+=6;\

  764.         }\

  765.         break;\

  766.     case PIX_FMT_BGR24:\

  767.         func(uint8_t,0)\

  768.             ((uint8_t*)dest)[0]= b[Y1];\

  769.             ((uint8_t*)dest)[1]= g[Y1];\

  770.             ((uint8_t*)dest)[2]= r[Y1];\

  771.             ((uint8_t*)dest)[3]= b[Y2];\

  772.             ((uint8_t*)dest)[4]= g[Y2];\

  773.             ((uint8_t*)dest)[5]= r[Y2];\

  774.             dest+=6;\

  775.         }\

  776.         break;\

  777.     case PIX_FMT_RGB565BE:\

  778.     case PIX_FMT_RGB565LE:\

  779.     case PIX_FMT_BGR565BE:\

  780.     case PIX_FMT_BGR565LE:\

  781.         {\

  782.             const int dr1= dither_2x2_8[y&1    ][0];\

  783.             const int dg1= dither_2x2_4[y&1    ][0];\

  784.             const int db1= dither_2x2_8[(y&1)^1][0];\

  785.             const int dr2= dither_2x2_8[y&1    ][1];\

  786.             const int dg2= dither_2x2_4[y&1    ][1];\

  787.             const int db2= dither_2x2_8[(y&1)^1][1];\

  788.             func(uint16_t,0)\

  789.                 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\

  790.                 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\

  791.             }\

  792.         }\

  793.         break;\

  794.     case PIX_FMT_RGB555BE:\

  795.     case PIX_FMT_RGB555LE:\

  796.     case PIX_FMT_BGR555BE:\

  797.     case PIX_FMT_BGR555LE:\

  798.         {\

  799.             const int dr1= dither_2x2_8[y&1    ][0];\

  800.             const int dg1= dither_2x2_8[y&1    ][1];\

  801.             const int db1= dither_2x2_8[(y&1)^1][0];\

  802.             const int dr2= dither_2x2_8[y&1    ][1];\

  803.             const int dg2= dither_2x2_8[y&1    ][0];\

  804.             const int db2= dither_2x2_8[(y&1)^1][1];\

  805.             func(uint16_t,0)\

  806.                 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\

  807.                 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\

  808.             }\

  809.         }\

  810.         break;\

  811.     case PIX_FMT_RGB444BE:\

  812.     case PIX_FMT_RGB444LE:\

  813.     case PIX_FMT_BGR444BE:\

  814.     case PIX_FMT_BGR444LE:\

  815.         {\

  816.             const int dr1= dither_4x4_16[y&3    ][0];\

  817.             const int dg1= dither_4x4_16[y&3    ][1];\

  818.             const int db1= dither_4x4_16[(y&3)^3][0];\

  819.             const int dr2= dither_4x4_16[y&3    ][1];\

  820.             const int dg2= dither_4x4_16[y&3    ][0];\

  821.             const int db2= dither_4x4_16[(y&3)^3][1];\

  822.             func(uint16_t,0)\

  823.                 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\

  824.                 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\

  825.             }\

  826.         }\

  827.         break;\

  828.     case PIX_FMT_RGB8:\

  829.     case PIX_FMT_BGR8:\

  830.         {\

  831.             const uint8_t * const d64= dither_8x8_73[y&7];\

  832.             const uint8_t * const d32= dither_8x8_32[y&7];\

  833.             func(uint8_t,0)\

  834.                 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\

  835.                 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\

  836.             }\

  837.         }\

  838.         break;\

  839.     case PIX_FMT_RGB4:\

  840.     case PIX_FMT_BGR4:\

  841.         {\

  842.             const uint8_t * const d64= dither_8x8_73 [y&7];\

  843.             const uint8_t * const d128=dither_8x8_220[y&7];\

  844.             func(uint8_t,0)\

  845.                 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\

  846.                                  + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\

  847.             }\

  848.         }\

  849.         break;\

  850.     case PIX_FMT_RGB4_BYTE:\

  851.     case PIX_FMT_BGR4_BYTE:\

  852.         {\

  853.             const uint8_t * const d64= dither_8x8_73 [y&7];\

  854.             const uint8_t * const d128=dither_8x8_220[y&7];\

  855.             func(uint8_t,0)\

  856.                 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\

  857.                 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\

  858.             }\

  859.         }\

  860.         break;\

  861.     case PIX_FMT_MONOBLACK:\

  862.     case PIX_FMT_MONOWHITE:\

  863.         {\

  864.             func_monoblack\

  865.         }\

  866.         break;\

  867.     case PIX_FMT_YUYV422:\

  868.         func2\

  869.             ((uint8_t*)dest)[2*i2+0]= Y1;\

  870.             ((uint8_t*)dest)[2*i2+1]= U;\

  871.             ((uint8_t*)dest)[2*i2+2]= Y2;\

  872.             ((uint8_t*)dest)[2*i2+3]= V;\

  873.         }                \

  874.         break;\

  875.     case PIX_FMT_UYVY422:\

  876.         func2\

  877.             ((uint8_t*)dest)[2*i2+0]= U;\

  878.             ((uint8_t*)dest)[2*i2+1]= Y1;\

  879.             ((uint8_t*)dest)[2*i2+2]= V;\

  880.             ((uint8_t*)dest)[2*i2+3]= Y2;\

  881.         }                \

  882.         break;\

  883.     case PIX_FMT_GRAY16BE:\

  884.         func_g16\

  885.             ((uint8_t*)dest)[2*i2+0]= Y1>>8;\

  886.             ((uint8_t*)dest)[2*i2+1]= Y1;\

  887.             ((uint8_t*)dest)[2*i2+2]= Y2>>8;\

  888.             ((uint8_t*)dest)[2*i2+3]= Y2;\

  889.         }                \

  890.         break;\

  891.     case PIX_FMT_GRAY16LE:\

  892.         func_g16\

  893.             ((uint8_t*)dest)[2*i2+0]= Y1;\

  894.             ((uint8_t*)dest)[2*i2+1]= Y1>>8;\

  895.             ((uint8_t*)dest)[2*i2+2]= Y2;\

  896.             ((uint8_t*)dest)[2*i2+3]= Y2>>8;\

  897.         }                \

  898.         break;\

  899.     }

  900. 

  901. static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  902.                                   const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  903.                                   const int16_t **alpSrc, uint8_t *dest, int dstW, int y)

  904. {

  905.     int i;

  906.     YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void,0), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOX_C)

  907. }

  908. 

  909. static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,

  910.                                     const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,

  911.                                     const int16_t **alpSrc, uint8_t *dest, int dstW, int y)

  912. {

  913.     int i;

  914.     int step= c->dstFormatBpp/8;

  915.     int aidx= 3;

  916. 

  917.     switch(c->dstFormat) {

  918.     case PIX_FMT_ARGB:

  919.         dest++;

  920.         aidx= 0;

  921.     case PIX_FMT_RGB24:

  922.         aidx--;

  923.     case PIX_FMT_RGBA:

  924.         if (CONFIG_SMALL) {

  925.             int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;

  926.             YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)

  927.                 dest[aidx]= needAlpha ? A : 255;

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

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

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

  931.                 dest+= step;

  932.             }

  933.         } else {

  934.             if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {

  935.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)

  936.                     dest[aidx]= A;

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

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

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

  940.                     dest+= step;

  941.                 }

  942.             } else {

  943.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)

  944.                     dest[aidx]= 255;

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

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

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

  948.                     dest+= step;

  949.                 }

  950.             }

  951.         }

  952.         break;

  953.     case PIX_FMT_ABGR:

  954.         dest++;

  955.         aidx= 0;

  956.     case PIX_FMT_BGR24:

  957.         aidx--;

  958.     case PIX_FMT_BGRA:

  959.         if (CONFIG_SMALL) {

  960.             int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;

  961.             YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)

  962.                 dest[aidx]= needAlpha ? A : 255;

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

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

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

  966.                 dest+= step;

  967.             }

  968.         } else {

  969.             if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {

  970.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)

  971.                     dest[aidx]= A;

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

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

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

  975.                     dest+= step;

  976.                 }

  977.             } else {

  978.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)

  979.                     dest[aidx]= 255;

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

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

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

  983.                     dest+= step;

  984.                 }

  985.             }

  986.         }

  987.         break;

  988.     default:

  989.         assert(0);

  990.     }

  991. }

  992. 

  993. static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)

  994. {

  995.     int i;

  996.     uint8_t *ptr = plane + stride*y;

  997.     for (i=0; i<height; i++) {

  998.         memset(ptr, val, width);

  999.         ptr += stride;

  1000.     }

  1001. }

  1002. 

  1003. static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, long width,

  1004.                             uint32_t *unused)

  1005. {

  1006.     int i;

  1007.     for (i = 0; i < width; i++) {

  1008.         int r = src[i*6+0];

  1009.         int g = src[i*6+2];

  1010.         int b = src[i*6+4];

  1011. 

  1012.         dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1013.     }

  1014. }

  1015. 

  1016. static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,

  1017.                              const uint8_t *src1, const uint8_t *src2,

  1018.                              long width, uint32_t *unused)

  1019. {

  1020.     int i;

  1021.     assert(src1==src2);

  1022.     for (i = 0; i < width; i++) {

  1023.         int r = src1[6*i + 0];

  1024.         int g = src1[6*i + 2];

  1025.         int b = src1[6*i + 4];

  1026. 

  1027.         dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1028.         dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1029.     }

  1030. }

  1031. 

  1032. static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,

  1033.                                   const uint8_t *src1, const uint8_t *src2,

  1034.                                   long width, uint32_t *unused)

  1035. {

  1036.     int i;

  1037.     assert(src1==src2);

  1038.     for (i = 0; i < width; i++) {

  1039.         int r= src1[12*i + 0] + src1[12*i + 6];

  1040.         int g= src1[12*i + 2] + src1[12*i + 8];

  1041.         int b= src1[12*i + 4] + src1[12*i + 10];

  1042. 

  1043.         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1044.         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1045.     }

  1046. }

  1047. 

  1048. static inline void bgr48ToY(uint8_t *dst, const uint8_t *src, long width,

  1049.                             uint32_t *unused)

  1050. {

  1051.     int i;

  1052.     for (i = 0; i < width; i++) {

  1053.         int b = src[i*6+0];

  1054.         int g = src[i*6+2];

  1055.         int r = src[i*6+4];

  1056. 

  1057.         dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1058.     }

  1059. }

  1060. 

  1061. static inline void bgr48ToUV(uint8_t *dstU, uint8_t *dstV,

  1062.                              const uint8_t *src1, const uint8_t *src2,

  1063.                              long width, uint32_t *unused)

  1064. {

  1065.     int i;

  1066.     for (i = 0; i < width; i++) {

  1067.         int b = src1[6*i + 0];

  1068.         int g = src1[6*i + 2];

  1069.         int r = src1[6*i + 4];

  1070. 

  1071.         dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1072.         dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1073.     }

  1074. }

  1075. 

  1076. static inline void bgr48ToUV_half(uint8_t *dstU, uint8_t *dstV,

  1077.                                   const uint8_t *src1, const uint8_t *src2,

  1078.                                   long width, uint32_t *unused)

  1079. {

  1080.     int i;

  1081.     for (i = 0; i < width; i++) {

  1082.         int b= src1[12*i + 0] + src1[12*i + 6];

  1083.         int g= src1[12*i + 2] + src1[12*i + 8];

  1084.         int r= src1[12*i + 4] + src1[12*i + 10];

  1085. 

  1086.         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1087.         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1088.     }

  1089. }

  1090. 

  1091. #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\

  1092. static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\

  1093. {\

  1094.     int i;\

  1095.     for (i=0; i<width; i++) {\

  1096.         int b= (((const type*)src)[i]>>shb)&maskb;\

  1097.         int g= (((const type*)src)[i]>>shg)&maskg;\

  1098.         int r= (((const type*)src)[i]>>shr)&maskr;\

  1099. \

  1100.         dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\

  1101.     }\

  1102. }

  1103. 

  1104. BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)

  1105. BGR2Y(uint32_t,bgr321ToY,16,16, 0, 0xFF00, 0x00FF, 0xFF00, RY    , GY<<8, BY    , RGB2YUV_SHIFT+8)

  1106. BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)

  1107. BGR2Y(uint32_t,rgb321ToY, 0,16,16, 0xFF00, 0x00FF, 0xFF00, RY    , GY<<8, BY    , RGB2YUV_SHIFT+8)

  1108. BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY    , RGB2YUV_SHIFT+8)

  1109. BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY    , RGB2YUV_SHIFT+7)

  1110. BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY    , GY<<5, BY<<11, RGB2YUV_SHIFT+8)

  1111. BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY    , GY<<5, BY<<10, RGB2YUV_SHIFT+7)

  1112. 

  1113. static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1114. {

  1115.     int i;

  1116.     for (i=0; i<width; i++) {

  1117.         dst[i]= src[4*i];

  1118.     }

  1119. }

  1120. 

  1121. #define BGR2UV(type, name, shr, shg, shb, shp, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S) \

  1122. static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\

  1123. {\

  1124.     int i;\

  1125.     for (i=0; i<width; i++) {\

  1126.         int b= ((((const type*)src)[i]>>shp)&maskb)>>shb;\

  1127.         int g= ((((const type*)src)[i]>>shp)&maskg)>>shg;\

  1128.         int r= ((((const type*)src)[i]>>shp)&maskr)>>shr;\

  1129. \

  1130.         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\

  1131.         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\

  1132.     }\

  1133. }\

  1134. static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\

  1135. {\

  1136.     int i;\

  1137.     for (i=0; i<width; i++) {\

  1138.         int pix0= ((const type*)src)[2*i+0]>>shp;\

  1139.         int pix1= ((const type*)src)[2*i+1]>>shp;\

  1140.         int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\

  1141.         int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\

  1142.         int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\

  1143.         g&= maskg|(2*maskg);\

  1144. \

  1145.         g>>=shg;\

  1146. \

  1147.         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\

  1148.         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\

  1149.     }\

  1150. }

  1151. 

  1152. BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1153. BGR2UV(uint32_t,bgr321ToUV,16, 0, 0, 8, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1154. BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1155. BGR2UV(uint32_t,rgb321ToUV, 0, 0,16, 8,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1156. BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0,   0x001F, 0x07E0,   0xF800, RU<<11, GU<<5, BU    , RV<<11, GV<<5, BV    , RGB2YUV_SHIFT+8)

  1157. BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0,   0x001F, 0x03E0,   0x7C00, RU<<10, GU<<5, BU    , RV<<10, GV<<5, BV    , RGB2YUV_SHIFT+7)

  1158. BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0,   0xF800, 0x07E0,   0x001F, RU    , GU<<5, BU<<11, RV    , GV<<5, BV<<11, RGB2YUV_SHIFT+8)

  1159. BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0,   0x7C00, 0x03E0,   0x001F, RU    , GU<<5, BU<<10, RV    , GV<<5, BV<<10, RGB2YUV_SHIFT+7)

  1160. 

  1161. static inline void palToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)

  1162. {

  1163.     int i;

  1164.     for (i=0; i<width; i++) {

  1165.         int d= src[i];

  1166. 

  1167.         dst[i]= pal[d] >> 24;

  1168.     }

  1169. }

  1170. 

  1171. static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)

  1172. {

  1173.     int i;

  1174.     for (i=0; i<width; i++) {

  1175.         int d= src[i];

  1176. 

  1177.         dst[i]= pal[d] & 0xFF;

  1178.     }

  1179. }

  1180. 

  1181. static inline void palToUV(uint8_t *dstU, uint8_t *dstV,

  1182.                            const uint8_t *src1, const uint8_t *src2,

  1183.                            long width, uint32_t *pal)

  1184. {

  1185.     int i;

  1186.     assert(src1 == src2);

  1187.     for (i=0; i<width; i++) {

  1188.         int p= pal[src1[i]];

  1189. 

  1190.         dstU[i]= p>>8;

  1191.         dstV[i]= p>>16;

  1192.     }

  1193. }

  1194. 

  1195. static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1196. {

  1197.     int i, j;

  1198.     for (i=0; i<width/8; i++) {

  1199.         int d= ~src[i];

  1200.         for(j=0; j<8; j++)

  1201.             dst[8*i+j]= ((d>>(7-j))&1)*255;

  1202.     }

  1203. }

  1204. 

  1205. static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1206. {

  1207.     int i, j;

  1208.     for (i=0; i<width/8; i++) {

  1209.         int d= src[i];

  1210.         for(j=0; j<8; j++)

  1211.             dst[8*i+j]= ((d>>(7-j))&1)*255;

  1212.     }

  1213. }

  1214. 

  1215. //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one

  1216. //Plain C versions

  1217. #if CONFIG_RUNTIME_CPUDETECT

  1218. #  define COMPILE_C 1

  1219. #  if   ARCH_X86

  1220. #    define COMPILE_MMX     1

  1221. #    define COMPILE_MMX2    1

  1222. #    define COMPILE_3DNOW   1

  1223. #  elif ARCH_PPC

  1224. #    define COMPILE_ALTIVEC HAVE_ALTIVEC

  1225. #  endif

  1226. #else /* CONFIG_RUNTIME_CPUDETECT */

  1227. #  if   ARCH_X86

  1228. #    if   HAVE_MMX2

  1229. #      define COMPILE_MMX2  1

  1230. #    elif HAVE_AMD3DNOW

  1231. #      define COMPILE_3DNOW 1

  1232. #    elif HAVE_MMX

  1233. #      define COMPILE_MMX   1

  1234. #    else

  1235. #      define COMPILE_C     1

  1236. #    endif

  1237. #  elif ARCH_PPC && HAVE_ALTIVEC

  1238. #    define COMPILE_ALTIVEC 1

  1239. #  else

  1240. #    define COMPILE_C       1

  1241. #  endif

  1242. #endif

  1243. 

  1244. #ifndef COMPILE_C

  1245. #  define COMPILE_C 0

  1246. #endif

  1247. #ifndef COMPILE_MMX

  1248. #  define COMPILE_MMX 0

  1249. #endif

  1250. #ifndef COMPILE_MMX2

  1251. #  define COMPILE_MMX2 0

  1252. #endif

  1253. #ifndef COMPILE_3DNOW

  1254. #  define COMPILE_3DNOW 0

  1255. #endif

  1256. #ifndef COMPILE_ALTIVEC

  1257. #  define COMPILE_ALTIVEC 0

  1258. #endif

  1259. 

  1260. #define COMPILE_TEMPLATE_MMX 0

  1261. #define COMPILE_TEMPLATE_MMX2 0

  1262. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1263. #define COMPILE_TEMPLATE_ALTIVEC 0

  1264. 

  1265. #if COMPILE_C

  1266. #define RENAME(a) a ## _C

  1267. #include "swscale_template.c"

  1268. #endif

  1269. 

  1270. #if COMPILE_ALTIVEC

  1271. #undef RENAME

  1272. #undef COMPILE_TEMPLATE_ALTIVEC

  1273. #define COMPILE_TEMPLATE_ALTIVEC 1

  1274. #define RENAME(a) a ## _altivec

  1275. #include "swscale_template.c"

  1276. #endif

  1277. 

  1278. #if ARCH_X86

  1279. 

  1280. //MMX versions

  1281. #if COMPILE_MMX

  1282. #undef RENAME

  1283. #undef COMPILE_TEMPLATE_MMX

  1284. #undef COMPILE_TEMPLATE_MMX2

  1285. #undef COMPILE_TEMPLATE_AMD3DNOW

  1286. #define COMPILE_TEMPLATE_MMX 1

  1287. #define COMPILE_TEMPLATE_MMX2 0

  1288. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1289. #define RENAME(a) a ## _MMX

  1290. #include "swscale_template.c"

  1291. #endif

  1292. 

  1293. //MMX2 versions

  1294. #if COMPILE_MMX2

  1295. #undef RENAME

  1296. #undef COMPILE_TEMPLATE_MMX

  1297. #undef COMPILE_TEMPLATE_MMX2

  1298. #undef COMPILE_TEMPLATE_AMD3DNOW

  1299. #define COMPILE_TEMPLATE_MMX 1

  1300. #define COMPILE_TEMPLATE_MMX2 1

  1301. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1302. #define RENAME(a) a ## _MMX2

  1303. #include "swscale_template.c"

  1304. #endif

  1305. 

  1306. //3DNOW versions

  1307. #if COMPILE_3DNOW

  1308. #undef RENAME

  1309. #undef COMPILE_TEMPLATE_MMX

  1310. #undef COMPILE_TEMPLATE_MMX2

  1311. #undef COMPILE_TEMPLATE_AMD3DNOW

  1312. #define COMPILE_TEMPLATE_MMX 1

  1313. #define COMPILE_TEMPLATE_MMX2 0

  1314. #define COMPILE_TEMPLATE_AMD3DNOW 1

  1315. #define RENAME(a) a ## _3DNow

  1316. #include "swscale_template.c"

  1317. #endif

  1318. 

  1319. #endif //ARCH_X86

  1320. 

  1321. SwsFunc ff_getSwsFunc(SwsContext *c)

  1322. {

  1323. #if CONFIG_RUNTIME_CPUDETECT

  1324.     int flags = c->flags;

  1325. 

  1326. #if ARCH_X86

  1327.     // ordered per speed fastest first

  1328.     if (flags & SWS_CPU_CAPS_MMX2) {

  1329.         sws_init_swScale_MMX2(c);

  1330.         return swScale_MMX2;

  1331.     } else if (flags & SWS_CPU_CAPS_3DNOW) {

  1332.         sws_init_swScale_3DNow(c);

  1333.         return swScale_3DNow;

  1334.     } else if (flags & SWS_CPU_CAPS_MMX) {

  1335.         sws_init_swScale_MMX(c);

  1336.         return swScale_MMX;

  1337.     } else {

  1338.         sws_init_swScale_C(c);

  1339.         return swScale_C;

  1340.     }

  1341. 

  1342. #else

  1343. #if COMPILE_ALTIVEC

  1344.     if (flags & SWS_CPU_CAPS_ALTIVEC) {

  1345.         sws_init_swScale_altivec(c);

  1346.         return swScale_altivec;

  1347.     } else {

  1348.         sws_init_swScale_C(c);

  1349.         return swScale_C;

  1350.     }

  1351. #endif

  1352.     sws_init_swScale_C(c);

  1353.     return swScale_C;

  1354. #endif /* ARCH_X86 */

  1355. #else //CONFIG_RUNTIME_CPUDETECT

  1356. #if   COMPILE_TEMPLATE_MMX2

  1357.     sws_init_swScale_MMX2(c);

  1358.     return swScale_MMX2;

  1359. #elif COMPILE_TEMPLATE_AMD3DNOW

  1360.     sws_init_swScale_3DNow(c);

  1361.     return swScale_3DNow;

  1362. #elif COMPILE_TEMPLATE_MMX

  1363.     sws_init_swScale_MMX(c);

  1364.     return swScale_MMX;

  1365. #elif COMPILE_TEMPLATE_ALTIVEC

  1366.     sws_init_swScale_altivec(c);

  1367.     return swScale_altivec;

  1368. #else

  1369.     sws_init_swScale_C(c);

  1370.     return swScale_C;

  1371. #endif

  1372. #endif //!CONFIG_RUNTIME_CPUDETECT

  1373. }

  1374. 

  1375. static void copyPlane(const uint8_t *src, int srcStride,

  1376.                       int srcSliceY, int srcSliceH, int width,

  1377.                       uint8_t *dst, int dstStride)

  1378. {

  1379.     dst += dstStride * srcSliceY;

  1380.     if (dstStride == srcStride && srcStride > 0) {

  1381.         memcpy(dst, src, srcSliceH * dstStride);

  1382.     } else {

  1383.         int i;

  1384.         for (i=0; i<srcSliceH; i++) {

  1385.             memcpy(dst, src, width);

  1386.             src += srcStride;

  1387.             dst += dstStride;

  1388.         }

  1389.     }

  1390. }

  1391. 

  1392. static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1393.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1394. {

  1395.     uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;

  1396. 

  1397.     copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,

  1398.               dstParam[0], dstStride[0]);

  1399. 

  1400.     if (c->dstFormat == PIX_FMT_NV12)

  1401.         interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);

  1402.     else

  1403.         interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);

  1404. 

  1405.     return srcSliceH;

  1406. }

  1407. 

  1408. static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1409.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1410. {

  1411.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1412. 

  1413.     yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);

  1414. 

  1415.     return srcSliceH;

  1416. }

  1417. 

  1418. static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1419.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1420. {

  1421.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1422. 

  1423.     yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);

  1424. 

  1425.     return srcSliceH;

  1426. }

  1427. 

  1428. static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1429.                                 int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1430. {

  1431.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1432. 

  1433.     yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);

  1434. 

  1435.     return srcSliceH;

  1436. }

  1437. 

  1438. static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1439.                                 int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1440. {

  1441.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1442. 

  1443.     yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);

  1444. 

  1445.     return srcSliceH;

  1446. }

  1447. 

  1448. static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1449.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1450. {

  1451.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1452.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;

  1453.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;

  1454. 

  1455.     yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1456. 

  1457.     if (dstParam[3])

  1458.         fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1459. 

  1460.     return srcSliceH;

  1461. }

  1462. 

  1463. static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1464.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1465. {

  1466.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1467.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;

  1468.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;

  1469. 

  1470.     yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1471. 

  1472.     return srcSliceH;

  1473. }

  1474. 

  1475. static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1476.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1477. {

  1478.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1479.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;

  1480.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;

  1481. 

  1482.     uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1483. 

  1484.     if (dstParam[3])

  1485.         fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1486. 

  1487.     return srcSliceH;

  1488. }

  1489. 

  1490. static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1491.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1492. {

  1493.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1494.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;

  1495.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;

  1496. 

  1497.     uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1498. 

  1499.     return srcSliceH;

  1500. }

  1501. 

  1502. static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1503. {

  1504.     long i;

  1505.     for (i=0; i<num_pixels; i++)

  1506.         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);

  1507. }

  1508. 

  1509. static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1510. {

  1511.     long i;

  1512. 

  1513.     for (i=0; i<num_pixels; i++)

  1514.         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];

  1515. }

  1516. 

  1517. static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1518. {

  1519.     long i;

  1520. 

  1521.     for (i=0; i<num_pixels; i++) {

  1522.         //FIXME slow?

  1523.         dst[0]= palette[src[i<<1]*4+0];

  1524.         dst[1]= palette[src[i<<1]*4+1];

  1525.         dst[2]= palette[src[i<<1]*4+2];

  1526.         dst+= 3;

  1527.     }

  1528. }

  1529. 

  1530. static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1531.                            int srcSliceH, uint8_t* dst[], int dstStride[])

  1532. {

  1533.     const enum PixelFormat srcFormat= c->srcFormat;

  1534.     const enum PixelFormat dstFormat= c->dstFormat;

  1535.     void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,

  1536.                  const uint8_t *palette)=NULL;

  1537.     int i;

  1538.     uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;

  1539.     const uint8_t *srcPtr= src[0];

  1540. 

  1541.     if (srcFormat == PIX_FMT_GRAY8A) {

  1542.         switch (dstFormat) {

  1543.         case PIX_FMT_RGB32  : conv = gray8aToPacked32; break;

  1544.         case PIX_FMT_BGR32  : conv = gray8aToPacked32; break;

  1545.         case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;

  1546.         case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;

  1547.         case PIX_FMT_RGB24  : conv = gray8aToPacked24; break;

  1548.         case PIX_FMT_BGR24  : conv = gray8aToPacked24; break;

  1549.         }

  1550.     } else if (usePal(srcFormat)) {

  1551.         switch (dstFormat) {

  1552.         case PIX_FMT_RGB32  : conv = sws_convertPalette8ToPacked32; break;

  1553.         case PIX_FMT_BGR32  : conv = sws_convertPalette8ToPacked32; break;

  1554.         case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;

  1555.         case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;

  1556.         case PIX_FMT_RGB24  : conv = sws_convertPalette8ToPacked24; break;

  1557.         case PIX_FMT_BGR24  : conv = sws_convertPalette8ToPacked24; break;

  1558.         }

  1559.     }

  1560. 

  1561.     if (!conv)

  1562.         av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",

  1563.                sws_format_name(srcFormat), sws_format_name(dstFormat));

  1564.     else {

  1565.         for (i=0; i<srcSliceH; i++) {

  1566.             conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);

  1567.             srcPtr+= srcStride[0];

  1568.             dstPtr+= dstStride[0];

  1569.         }

  1570.     }

  1571. 

  1572.     return srcSliceH;

  1573. }

  1574. 

  1575. #define isRGBA32(x) (            \

  1576.            (x) == PIX_FMT_ARGB   \

  1577.         || (x) == PIX_FMT_RGBA   \

  1578.         || (x) == PIX_FMT_BGRA   \

  1579.         || (x) == PIX_FMT_ABGR   \

  1580.         )

  1581. 

  1582. /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */

  1583. static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1584.                            int srcSliceH, uint8_t* dst[], int dstStride[])

  1585. {

  1586.     const enum PixelFormat srcFormat= c->srcFormat;

  1587.     const enum PixelFormat dstFormat= c->dstFormat;

  1588.     const int srcBpp= (c->srcFormatBpp + 7) >> 3;

  1589.     const int dstBpp= (c->dstFormatBpp + 7) >> 3;

  1590.     const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */

  1591.     const int dstId= c->dstFormatBpp >> 2;

  1592.     void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;

  1593. 

  1594. #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)

  1595. 

  1596.     if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {

  1597.         if (     CONV_IS(ABGR, RGBA)

  1598.               || CONV_IS(ARGB, BGRA)

  1599.               || CONV_IS(BGRA, ARGB)

  1600.               || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;

  1601.         else if (CONV_IS(ABGR, ARGB)

  1602.               || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;

  1603.         else if (CONV_IS(ABGR, BGRA)

  1604.               || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;

  1605.         else if (CONV_IS(BGRA, RGBA)

  1606.               || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;

  1607.         else if (CONV_IS(BGRA, ABGR)

  1608.               || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;

  1609.     } else

  1610.     /* BGR -> BGR */

  1611.     if (  (isBGRinInt(srcFormat) && isBGRinInt(dstFormat))

  1612.        || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {

  1613.         switch(srcId | (dstId<<4)) {

  1614.         case 0x34: conv= rgb16to15; break;

  1615.         case 0x36: conv= rgb24to15; break;

  1616.         case 0x38: conv= rgb32to15; break;

  1617.         case 0x43: conv= rgb15to16; break;

  1618.         case 0x46: conv= rgb24to16; break;

  1619.         case 0x48: conv= rgb32to16; break;

  1620.         case 0x63: conv= rgb15to24; break;

  1621.         case 0x64: conv= rgb16to24; break;

  1622.         case 0x68: conv= rgb32to24; break;

  1623.         case 0x83: conv= rgb15to32; break;

  1624.         case 0x84: conv= rgb16to32; break;

  1625.         case 0x86: conv= rgb24to32; break;

  1626.         }

  1627.     } else if (  (isBGRinInt(srcFormat) && isRGBinInt(dstFormat))

  1628.              || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {

  1629.         switch(srcId | (dstId<<4)) {

  1630.         case 0x33: conv= rgb15tobgr15; break;

  1631.         case 0x34: conv= rgb16tobgr15; break;

  1632.         case 0x36: conv= rgb24tobgr15; break;

  1633.         case 0x38: conv= rgb32tobgr15; break;

  1634.         case 0x43: conv= rgb15tobgr16; break;

  1635.         case 0x44: conv= rgb16tobgr16; break;

  1636.         case 0x46: conv= rgb24tobgr16; break;

  1637.         case 0x48: conv= rgb32tobgr16; break;

  1638.         case 0x63: conv= rgb15tobgr24; break;

  1639.         case 0x64: conv= rgb16tobgr24; break;

  1640.         case 0x66: conv= rgb24tobgr24; break;

  1641.         case 0x68: conv= rgb32tobgr24; break;

  1642.         case 0x83: conv= rgb15tobgr32; break;

  1643.         case 0x84: conv= rgb16tobgr32; break;

  1644.         case 0x86: conv= rgb24tobgr32; break;

  1645.         }

  1646.     }

  1647. 

  1648.     if (!conv) {

  1649.         av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",

  1650.                sws_format_name(srcFormat), sws_format_name(dstFormat));

  1651.     } else {

  1652.         const uint8_t *srcPtr= src[0];

  1653.               uint8_t *dstPtr= dst[0];

  1654.         if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat))

  1655.             srcPtr += ALT32_CORR;

  1656. 

  1657.         if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat))

  1658.             dstPtr += ALT32_CORR;

  1659. 

  1660.         if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)

  1661.             conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);

  1662.         else {

  1663.             int i;

  1664.             dstPtr += dstStride[0]*srcSliceY;

  1665. 

  1666.             for (i=0; i<srcSliceH; i++) {

  1667.                 conv(srcPtr, dstPtr, c->srcW*srcBpp);

  1668.                 srcPtr+= srcStride[0];

  1669.                 dstPtr+= dstStride[0];

  1670.             }

  1671.         }

  1672.     }

  1673.     return srcSliceH;

  1674. }

  1675. 

  1676. static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1677.                               int srcSliceH, uint8_t* dst[], int dstStride[])

  1678. {

  1679.     rgb24toyv12(

  1680.         src[0],

  1681.         dst[0]+ srcSliceY    *dstStride[0],

  1682.         dst[1]+(srcSliceY>>1)*dstStride[1],

  1683.         dst[2]+(srcSliceY>>1)*dstStride[2],

  1684.         c->srcW, srcSliceH,

  1685.         dstStride[0], dstStride[1], srcStride[0]);

  1686.     if (dst[3])

  1687.         fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1688.     return srcSliceH;

  1689. }

  1690. 

  1691. static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1692.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1693. {

  1694.     copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,

  1695.               dst[0], dstStride[0]);

  1696. 

  1697.     planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,

  1698.              srcSliceH >> 2, srcStride[1], dstStride[1]);

  1699.     planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,

  1700.              srcSliceH >> 2, srcStride[2], dstStride[2]);

  1701.     if (dst[3])

  1702.         fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1703.     return srcSliceH;

  1704. }

  1705. 

  1706. /* unscaled copy like stuff (assumes nearly identical formats) */

  1707. static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1708.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1709. {

  1710.     if (dstStride[0]==srcStride[0] && srcStride[0] > 0)

  1711.         memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);

  1712.     else {

  1713.         int i;

  1714.         const uint8_t *srcPtr= src[0];

  1715.         uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;

  1716.         int length=0;

  1717. 

  1718.         /* universal length finder */

  1719.         while(length+c->srcW <= FFABS(dstStride[0])

  1720.            && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;

  1721.         assert(length!=0);

  1722. 

  1723.         for (i=0; i<srcSliceH; i++) {

  1724.             memcpy(dstPtr, srcPtr, length);

  1725.             srcPtr+= srcStride[0];

  1726.             dstPtr+= dstStride[0];

  1727.         }

  1728.     }

  1729.     return srcSliceH;

  1730. }

  1731. 

  1732. static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1733.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1734. {

  1735.     int plane, i, j;

  1736.     for (plane=0; plane<4; plane++) {

  1737.         int length= (plane==0 || plane==3) ? c->srcW  : -((-c->srcW  )>>c->chrDstHSubSample);

  1738.         int y=      (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);

  1739.         int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);

  1740.         const uint8_t *srcPtr= src[plane];

  1741.         uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;

  1742. 

  1743.         if (!dst[plane]) continue;

  1744.         // ignore palette for GRAY8

  1745.         if (plane == 1 && !dst[2]) continue;

  1746.         if (!src[plane] || (plane == 1 && !src[2])) {

  1747.             if(is16BPS(c->dstFormat))

  1748.                 length*=2;

  1749.             fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);

  1750.         } else {

  1751.             if(isNBPS(c->srcFormat)) {

  1752.                 const int depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1;

  1753.                 uint16_t *srcPtr2 = (uint16_t*)srcPtr;

  1754. 

  1755.                 if (is16BPS(c->dstFormat)) {

  1756.                     uint16_t *dstPtr2 = (uint16_t*)dstPtr;

  1757.                     for (i = 0; i < height; i++) {

  1758.                         for (j = 0; j < length; j++)

  1759.                             dstPtr2[j] = (srcPtr2[j]<<(16-depth)) | (srcPtr2[j]>>(2*depth-16));

  1760.                         dstPtr2 += dstStride[plane]/2;

  1761.                         srcPtr2 += srcStride[plane]/2;

  1762.                     }

  1763.                 } else {

  1764.                     // FIXME Maybe dither instead.

  1765.                     for (i = 0; i < height; i++) {

  1766.                         for (j = 0; j < length; j++)

  1767.                             dstPtr[j] = srcPtr2[j]>>(depth-8);

  1768.                         dstPtr  += dstStride[plane];

  1769.                         srcPtr2 += srcStride[plane]/2;

  1770.                     }

  1771.                 }

  1772.             } else if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {

  1773.                 if (!isBE(c->srcFormat)) srcPtr++;

  1774.                 for (i=0; i<height; i++) {

  1775.                     for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];

  1776.                     srcPtr+= srcStride[plane];

  1777.                     dstPtr+= dstStride[plane];

  1778.                 }

  1779.             } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {

  1780.                 for (i=0; i<height; i++) {

  1781.                     for (j=0; j<length; j++) {

  1782.                         dstPtr[ j<<1   ] = srcPtr[j];

  1783.                         dstPtr[(j<<1)+1] = srcPtr[j];

  1784.                     }

  1785.                     srcPtr+= srcStride[plane];

  1786.                     dstPtr+= dstStride[plane];

  1787.                 }

  1788.             } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)

  1789.                   && isBE(c->srcFormat) != isBE(c->dstFormat)) {

  1790. 

  1791.                 for (i=0; i<height; i++) {

  1792.                     for (j=0; j<length; j++)

  1793.                         ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);

  1794.                     srcPtr+= srcStride[plane];

  1795.                     dstPtr+= dstStride[plane];

  1796.                 }

  1797.             } else if (dstStride[plane] == srcStride[plane] &&

  1798.                        srcStride[plane] > 0 && srcStride[plane] == length) {

  1799.                 memcpy(dst[plane] + dstStride[plane]*y, src[plane],

  1800.                        height*dstStride[plane]);

  1801.             } else {

  1802.                 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))

  1803.                     length*=2;

  1804.                 for (i=0; i<height; i++) {

  1805.                     memcpy(dstPtr, srcPtr, length);

  1806.                     srcPtr+= srcStride[plane];

  1807.                     dstPtr+= dstStride[plane];

  1808.                 }

  1809.             }

  1810.         }

  1811.     }

  1812.     return srcSliceH;

  1813. }

  1814. 

  1815. int ff_hardcodedcpuflags(void)

  1816. {

  1817.     int flags = 0;

  1818. #if   COMPILE_TEMPLATE_MMX2

  1819.     flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;

  1820. #elif COMPILE_TEMPLATE_AMD3DNOW

  1821.     flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;

  1822. #elif COMPILE_TEMPLATE_MMX

  1823.     flags |= SWS_CPU_CAPS_MMX;

  1824. #elif COMPILE_TEMPLATE_ALTIVEC

  1825.     flags |= SWS_CPU_CAPS_ALTIVEC;

  1826. #elif ARCH_BFIN

  1827.     flags |= SWS_CPU_CAPS_BFIN;

  1828. #endif

  1829.     return flags;

  1830. }

  1831. 

  1832. void ff_get_unscaled_swscale(SwsContext *c)

  1833. {

  1834.     const enum PixelFormat srcFormat = c->srcFormat;

  1835.     const enum PixelFormat dstFormat = c->dstFormat;

  1836.     const int flags = c->flags;

  1837.     const int dstH = c->dstH;

  1838.     int needsDither;

  1839. 

  1840.     needsDither= isAnyRGB(dstFormat)

  1841.         &&  c->dstFormatBpp < 24

  1842.         && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));

  1843. 

  1844.     /* yv12_to_nv12 */

  1845.     if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {

  1846.         c->swScale= planarToNv12Wrapper;

  1847.     }

  1848.     /* yuv2bgr */

  1849.     if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)

  1850.         && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {

  1851.         c->swScale= ff_yuv2rgb_get_func_ptr(c);

  1852.     }

  1853. 

  1854.     if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {

  1855.         c->swScale= yvu9ToYv12Wrapper;

  1856.     }

  1857. 

  1858.     /* bgr24toYV12 */

  1859.     if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))

  1860.         c->swScale= bgr24ToYv12Wrapper;

  1861. 

  1862.     /* RGB/BGR -> RGB/BGR (no dither needed forms) */

  1863.     if (   isAnyRGB(srcFormat)

  1864.         && isAnyRGB(dstFormat)

  1865.         && srcFormat != PIX_FMT_BGR8      && dstFormat != PIX_FMT_BGR8

  1866.         && srcFormat != PIX_FMT_RGB8      && dstFormat != PIX_FMT_RGB8

  1867.         && srcFormat != PIX_FMT_BGR4      && dstFormat != PIX_FMT_BGR4

  1868.         && srcFormat != PIX_FMT_RGB4      && dstFormat != PIX_FMT_RGB4

  1869.         && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE

  1870.         && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE

  1871.         && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK

  1872.         && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE

  1873.         && srcFormat != PIX_FMT_RGB48LE   && dstFormat != PIX_FMT_RGB48LE

  1874.         && srcFormat != PIX_FMT_RGB48BE   && dstFormat != PIX_FMT_RGB48BE

  1875.         && srcFormat != PIX_FMT_BGR48LE   && dstFormat != PIX_FMT_BGR48LE

  1876.         && srcFormat != PIX_FMT_BGR48BE   && dstFormat != PIX_FMT_BGR48BE

  1877.         && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))

  1878.         c->swScale= rgbToRgbWrapper;

  1879. 

  1880.     if ((usePal(srcFormat) && (

  1881.         dstFormat == PIX_FMT_RGB32   ||

  1882.         dstFormat == PIX_FMT_RGB32_1 ||

  1883.         dstFormat == PIX_FMT_RGB24   ||

  1884.         dstFormat == PIX_FMT_BGR32   ||

  1885.         dstFormat == PIX_FMT_BGR32_1 ||

  1886.         dstFormat == PIX_FMT_BGR24)))

  1887.         c->swScale= palToRgbWrapper;

  1888. 

  1889.     if (srcFormat == PIX_FMT_YUV422P) {

  1890.         if (dstFormat == PIX_FMT_YUYV422)

  1891.             c->swScale= yuv422pToYuy2Wrapper;

  1892.         else if (dstFormat == PIX_FMT_UYVY422)

  1893.             c->swScale= yuv422pToUyvyWrapper;

  1894.     }

  1895. 

  1896.     /* LQ converters if -sws 0 or -sws 4*/

  1897.     if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {

  1898.         /* yv12_to_yuy2 */

  1899.         if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {

  1900.             if (dstFormat == PIX_FMT_YUYV422)

  1901.                 c->swScale= planarToYuy2Wrapper;

  1902.             else if (dstFormat == PIX_FMT_UYVY422)

  1903.                 c->swScale= planarToUyvyWrapper;

  1904.         }

  1905.     }

  1906.     if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))

  1907.         c->swScale= yuyvToYuv420Wrapper;

  1908.     if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))

  1909.         c->swScale= uyvyToYuv420Wrapper;

  1910.     if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)

  1911.         c->swScale= yuyvToYuv422Wrapper;

  1912.     if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)

  1913.         c->swScale= uyvyToYuv422Wrapper;

  1914. 

  1915. #if COMPILE_ALTIVEC

  1916.     if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&

  1917.         !(c->flags & SWS_BITEXACT) &&

  1918.         srcFormat == PIX_FMT_YUV420P) {

  1919.         // unscaled YV12 -> packed YUV, we want speed

  1920.         if (dstFormat == PIX_FMT_YUYV422)

  1921.             c->swScale= yv12toyuy2_unscaled_altivec;

  1922.         else if (dstFormat == PIX_FMT_UYVY422)

  1923.             c->swScale= yv12touyvy_unscaled_altivec;

  1924.     }

  1925. #endif

  1926. 

  1927.     /* simple copy */

  1928.     if (  srcFormat == dstFormat

  1929.         || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)

  1930.         || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)

  1931.         || (isPlanarYUV(srcFormat) && isGray(dstFormat))

  1932.         || (isPlanarYUV(dstFormat) && isGray(srcFormat))

  1933.         || (isGray(dstFormat) && isGray(srcFormat))

  1934.         || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)

  1935.             && c->chrDstHSubSample == c->chrSrcHSubSample

  1936.             && c->chrDstVSubSample == c->chrSrcVSubSample

  1937.             && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21

  1938.             && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))

  1939.     {

  1940.         if (isPacked(c->srcFormat))

  1941.             c->swScale= packedCopyWrapper;

  1942.         else /* Planar YUV or gray */

  1943.             c->swScale= planarCopyWrapper;

  1944.     }

  1945. #if ARCH_BFIN

  1946.     if (flags & SWS_CPU_CAPS_BFIN)

  1947.         ff_bfin_get_unscaled_swscale (c);

  1948. #endif

  1949. }

  1950. 

  1951. static void reset_ptr(const uint8_t* src[], int format)

  1952. {

  1953.     if(!isALPHA(format))

  1954.         src[3]=NULL;

  1955.     if(!isPlanarYUV(format)) {

  1956.         src[3]=src[2]=NULL;

  1957. 

  1958.         if (!usePal(format))

  1959.             src[1]= NULL;

  1960.     }

  1961. }

  1962. 

  1963. static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,

  1964.                                 const int linesizes[4])

  1965. {

  1966.     const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];

  1967.     int i;

  1968. 

  1969.     for (i = 0; i < 4; i++) {

  1970.         int plane = desc->comp[i].plane;

  1971.         if (!data[plane] || !linesizes[plane])

  1972.             return 0;

  1973.     }

  1974. 

  1975.     return 1;

  1976. }

  1977. 

  1978. /**

  1979.  * swscale wrapper, so we don't need to export the SwsContext.

  1980.  * Assumes planar YUV to be in YUV order instead of YVU.

  1981.  */

  1982. int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,

  1983.               int srcSliceH, uint8_t* const dst[], const int dstStride[])

  1984. {

  1985.     int i;

  1986.     const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};

  1987.     uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};

  1988. 

  1989.     // do not mess up sliceDir if we have a "trailing" 0-size slice

  1990.     if (srcSliceH == 0)

  1991.         return 0;

  1992. 

  1993.     if (!check_image_pointers(src, c->srcFormat, srcStride)) {

  1994.         av_log(c, AV_LOG_ERROR, "bad src image pointers\n");

  1995.         return 0;

  1996.     }

  1997.     if (!check_image_pointers(dst, c->dstFormat, dstStride)) {

  1998.         av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");

  1999.         return 0;

  2000.     }

  2001. 

  2002.     if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {

  2003.         av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");

  2004.         return 0;

  2005.     }

  2006.     if (c->sliceDir == 0) {

  2007.         if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;

  2008.     }

  2009. 

  2010.     if (usePal(c->srcFormat)) {

  2011.         for (i=0; i<256; i++) {

  2012.             int p, r, g, b, y, u, v, a = 0xff;

  2013.             if(c->srcFormat == PIX_FMT_PAL8) {

  2014.                 p=((const uint32_t*)(src[1]))[i];

  2015.                 a= (p>>24)&0xFF;

  2016.                 r= (p>>16)&0xFF;

  2017.                 g= (p>> 8)&0xFF;

  2018.                 b=  p     &0xFF;

  2019.             } else if(c->srcFormat == PIX_FMT_RGB8) {

  2020.                 r= (i>>5    )*36;

  2021.                 g= ((i>>2)&7)*36;

  2022.                 b= (i&3     )*85;

  2023.             } else if(c->srcFormat == PIX_FMT_BGR8) {

  2024.                 b= (i>>6    )*85;

  2025.                 g= ((i>>3)&7)*36;

  2026.                 r= (i&7     )*36;

  2027.             } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {

  2028.                 r= (i>>3    )*255;

  2029.                 g= ((i>>1)&3)*85;

  2030.                 b= (i&1     )*255;

  2031.             } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_GRAY8A) {

  2032.                 r = g = b = i;

  2033.             } else {

  2034.                 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);

  2035.                 b= (i>>3    )*255;

  2036.                 g= ((i>>1)&3)*85;

  2037.                 r= (i&1     )*255;

  2038.             }

  2039.             y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2040.             u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2041.             v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2042.             c->pal_yuv[i]= y + (u<<8) + (v<<16) + (a<<24);

  2043. 

  2044.             switch(c->dstFormat) {

  2045.             case PIX_FMT_BGR32:

  2046. #if !HAVE_BIGENDIAN

  2047.             case PIX_FMT_RGB24:

  2048. #endif

  2049.                 c->pal_rgb[i]=  r + (g<<8) + (b<<16) + (a<<24);

  2050.                 break;

  2051.             case PIX_FMT_BGR32_1:

  2052. #if HAVE_BIGENDIAN

  2053.             case PIX_FMT_BGR24:

  2054. #endif

  2055.                 c->pal_rgb[i]= a + (r<<8) + (g<<16) + (b<<24);

  2056.                 break;

  2057.             case PIX_FMT_RGB32_1:

  2058. #if HAVE_BIGENDIAN

  2059.             case PIX_FMT_RGB24:

  2060. #endif

  2061.                 c->pal_rgb[i]= a + (b<<8) + (g<<16) + (r<<24);

  2062.                 break;

  2063.             case PIX_FMT_RGB32:

  2064. #if !HAVE_BIGENDIAN

  2065.             case PIX_FMT_BGR24:

  2066. #endif

  2067.             default:

  2068.                 c->pal_rgb[i]=  b + (g<<8) + (r<<16) + (a<<24);

  2069.             }

  2070.         }

  2071.     }

  2072. 

  2073.     // copy strides, so they can safely be modified

  2074.     if (c->sliceDir == 1) {

  2075.         // slices go from top to bottom

  2076.         int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};

  2077.         int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};

  2078. 

  2079.         reset_ptr(src2, c->srcFormat);

  2080.         reset_ptr((const uint8_t**)dst2, c->dstFormat);

  2081. 

  2082.         /* reset slice direction at end of frame */

  2083.         if (srcSliceY + srcSliceH == c->srcH)

  2084.             c->sliceDir = 0;

  2085. 

  2086.         return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);

  2087.     } else {

  2088.         // slices go from bottom to top => we flip the image internally

  2089.         int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};

  2090.         int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};

  2091. 

  2092.         src2[0] += (srcSliceH-1)*srcStride[0];

  2093.         if (!usePal(c->srcFormat))

  2094.             src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];

  2095.         src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];

  2096.         src2[3] += (srcSliceH-1)*srcStride[3];

  2097.         dst2[0] += ( c->dstH                      -1)*dstStride[0];

  2098.         dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];

  2099.         dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];

  2100.         dst2[3] += ( c->dstH                      -1)*dstStride[3];

  2101. 

  2102.         reset_ptr(src2, c->srcFormat);

  2103.         reset_ptr((const uint8_t**)dst2, c->dstFormat);

  2104. 

  2105.         /* reset slice direction at end of frame */

  2106.         if (!srcSliceY)

  2107.             c->sliceDir = 0;

  2108. 

  2109.         return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);

  2110.     }

  2111. }

  2112. 

  2113. #if LIBSWSCALE_VERSION_MAJOR < 1

  2114. int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,

  2115.                       int srcSliceH, uint8_t* dst[], int dstStride[])

  2116. {

  2117.     return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);

  2118. }

  2119. #endif

  2120. 

  2121. /* Convert the palette to the same packed 32-bit format as the palette */

  2122. void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  2123. {

  2124.     long i;

  2125. 

  2126.     for (i=0; i<num_pixels; i++)

  2127.         ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];

  2128. }

  2129. 

  2130. /* Palette format: ABCD -> dst format: ABC */

  2131. void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  2132. {

  2133.     long i;

  2134. 

  2135.     for (i=0; i<num_pixels; i++) {

  2136.         //FIXME slow?

  2137.         dst[0]= palette[src[i]*4+0];

  2138.         dst[1]= palette[src[i]*4+1];

  2139.         dst[2]= palette[src[i]*4+2];

  2140.         dst+= 3;

  2141.     }

  2142. }