falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28975 Commits
32 Branches
367MB
Tree: ae7a4a1594
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'ae7a4a1594'
${ noResults }
FFmpeg/libswscale/swscale.c

2120 lines
74KB
Raw Blame History 

  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/cpu.h"

  66. #include "libavutil/avutil.h"

  67. #include "libavutil/mathematics.h"

  68. #include "libavutil/bswap.h"

  69. #include "libavutil/pixdesc.h"

  70. 

  71. #undef MOVNTQ

  72. #undef PAVGB

  73. 

  74. //#undef HAVE_MMX2

  75. //#define HAVE_AMD3DNOW

  76. //#undef HAVE_MMX

  77. //#undef ARCH_X86

  78. #define DITHER1XBPP

  79. 

  80. #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit

  81. 

  82. #define isPacked(x)         (       \

  83.            (x)==PIX_FMT_PAL8        \

  84.         || (x)==PIX_FMT_YUYV422     \

  85.         || (x)==PIX_FMT_UYVY422     \

  86.         || (x)==PIX_FMT_Y400A       \

  87.         || isAnyRGB(x)              \

  88.     )

  89. 

  90. #define RGB2YUV_SHIFT 15

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

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

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

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

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

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

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

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

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

  100. 

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

  102.     {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709

  103.     {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709

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

  107.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  108.     {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M

  109.     {0.701 , 0.087 , 0.212 , -0.384, 0.5, -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M

  110. };

  111. 

  112. /*

  113. NOTES

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

  115. 

  116. TODO

  117. more intelligent misalignment avoidance for the horizontal scaler

  118. write special vertical cubic upscale version

  119. optimize C code (YV12 / minmax)

  120. add support for packed pixel YUV input & output

  121. add support for Y8 output

  122. optimize BGR24 & BGR32

  123. add BGR4 output support

  124. write special BGR->BGR scaler

  125. */

  126. 

  127. #if ARCH_X86

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

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

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

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

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

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

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

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

  136. 

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

  138.         0x0103010301030103LL,

  139.         0x0200020002000200LL,};

  140. 

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

  142.         0x0602060206020602LL,

  143.         0x0004000400040004LL,};

  144. 

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

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

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

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

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

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

  151. 

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

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

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

  155. 

  156. #ifdef FAST_BGR2YV12

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

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

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

  160. #else

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

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

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

  164. #endif /* FAST_BGR2YV12 */

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

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

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

  168. 

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

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

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

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

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

  174. 

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

  176.     {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},

  177.     {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},

  178. };

  179. 

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

  181. 

  182. #endif /* ARCH_X86 */

  183. 

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

  185. {  1,   3,   1,   3,   1,   3,   1,   3, },

  186. {  2,   0,   2,   0,   2,   0,   2,   0, },

  187. };

  188. 

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

  190. {  6,   2,   6,   2,   6,   2,   6,   2, },

  191. {  0,   4,   0,   4,   0,   4,   0,   4, },

  192. };

  193. 

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

  195. {  8,   4,  11,   7,   8,   4,  11,   7, },

  196. {  2,  14,   1,  13,   2,  14,   1,  13, },

  197. { 10,   6,   9,   5,  10,   6,   9,   5, },

  198. {  0,  12,   3,  15,   0,  12,   3,  15, },

  199. };

  200. 

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

  202. { 17,   9,  23,  15,  16,   8,  22,  14, },

  203. {  5,  29,   3,  27,   4,  28,   2,  26, },

  204. { 21,  13,  19,  11,  20,  12,  18,  10, },

  205. {  0,  24,   6,  30,   1,  25,   7,  31, },

  206. { 16,   8,  22,  14,  17,   9,  23,  15, },

  207. {  4,  28,   2,  26,   5,  29,   3,  27, },

  208. { 20,  12,  18,  10,  21,  13,  19,  11, },

  209. {  1,  25,   7,  31,   0,  24,   6,  30, },

  210. };

  211. 

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

  213. {  0,  55,  14,  68,   3,  58,  17,  72, },

  214. { 37,  18,  50,  32,  40,  22,  54,  35, },

  215. {  9,  64,   5,  59,  13,  67,   8,  63, },

  216. { 46,  27,  41,  23,  49,  31,  44,  26, },

  217. {  2,  57,  16,  71,   1,  56,  15,  70, },

  218. { 39,  21,  52,  34,  38,  19,  51,  33, },

  219. { 11,  66,   7,  62,  10,  65,   6,  60, },

  220. { 48,  30,  43,  25,  47,  29,  42,  24, },

  221. };

  222. 

  223. #if 1

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

  225. {117,  62, 158, 103, 113,  58, 155, 100, },

  226. { 34, 199,  21, 186,  31, 196,  17, 182, },

  227. {144,  89, 131,  76, 141,  86, 127,  72, },

  228. {  0, 165,  41, 206,  10, 175,  52, 217, },

  229. {110,  55, 151,  96, 120,  65, 162, 107, },

  230. { 28, 193,  14, 179,  38, 203,  24, 189, },

  231. {138,  83, 124,  69, 148,  93, 134,  79, },

  232. {  7, 172,  48, 213,   3, 168,  45, 210, },

  233. };

  234. #elif 1

  235. // tries to correct a gamma of 1.5

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

  237. {  0, 143,  18, 200,   2, 156,  25, 215, },

  238. { 78,  28, 125,  64,  89,  36, 138,  74, },

  239. { 10, 180,   3, 161,  16, 195,   8, 175, },

  240. {109,  51,  93,  38, 121,  60, 105,  47, },

  241. {  1, 152,  23, 210,   0, 147,  20, 205, },

  242. { 85,  33, 134,  71,  81,  30, 130,  67, },

  243. { 14, 190,   6, 171,  12, 185,   5, 166, },

  244. {117,  57, 101,  44, 113,  54,  97,  41, },

  245. };

  246. #elif 1

  247. // tries to correct a gamma of 2.0

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

  249. {  0, 124,   8, 193,   0, 140,  12, 213, },

  250. { 55,  14, 104,  42,  66,  19, 119,  52, },

  251. {  3, 168,   1, 145,   6, 187,   3, 162, },

  252. { 86,  31,  70,  21,  99,  39,  82,  28, },

  253. {  0, 134,  11, 206,   0, 129,   9, 200, },

  254. { 62,  17, 114,  48,  58,  16, 109,  45, },

  255. {  5, 181,   2, 157,   4, 175,   1, 151, },

  256. { 95,  36,  78,  26,  90,  34,  74,  24, },

  257. };

  258. #else

  259. // tries to correct a gamma of 2.5

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

  261. {  0, 107,   3, 187,   0, 125,   6, 212, },

  262. { 39,   7,  86,  28,  49,  11, 102,  36, },

  263. {  1, 158,   0, 131,   3, 180,   1, 151, },

  264. { 68,  19,  52,  12,  81,  25,  64,  17, },

  265. {  0, 119,   5, 203,   0, 113,   4, 195, },

  266. { 45,   9,  96,  33,  42,   8,  91,  30, },

  267. {  2, 172,   1, 144,   2, 165,   0, 137, },

  268. { 77,  23,  60,  15,  72,  21,  56,  14, },

  269. };

  270. #endif

  271. 

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

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

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

  275.                                                     int dstW, int chrDstW, int big_endian)

  276. {

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

  278.     int i;

  279. 

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

  281.         int val = 1 << 10;

  282.         int j;

  283. 

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

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

  286. 

  287.         if (big_endian) {

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

  289.         } else {

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

  291.         }

  292.     }

  293. 

  294.     if (uDest) {

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

  296.             int u = 1 << 10;

  297.             int v = 1 << 10;

  298.             int j;

  299. 

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

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

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

  303.             }

  304. 

  305.             if (big_endian) {

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

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

  308.             } else {

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

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

  311.             }

  312.         }

  313.     }

  314. 

  315.     if (CONFIG_SWSCALE_ALPHA && aDest) {

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

  317.             int val = 1 << 10;

  318.             int j;

  319. 

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

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

  322. 

  323.             if (big_endian) {

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

  325.             } else {

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

  327.             }

  328.         }

  329.     }

  330. }

  331. 

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

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

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

  335.                                  enum PixelFormat dstFormat)

  336. {

  337.     if (isBE(dstFormat)) {

  338.         yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,

  339.                                chrFilter, chrSrc, chrFilterSize,

  340.                                alpSrc,

  341.                                dest, uDest, vDest, aDest,

  342.                                dstW, chrDstW, 1);

  343.     } else {

  344.         yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,

  345.                                chrFilter, chrSrc, chrFilterSize,

  346.                                alpSrc,

  347.                                dest, uDest, vDest, aDest,

  348.                                dstW, chrDstW, 0);

  349.     }

  350. }

  351. 

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

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

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

  355. {

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

  357.     int i;

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

  359.         int val=1<<18;

  360.         int j;

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

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

  363. 

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

  365.     }

  366. 

  367.     if (uDest)

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

  369.             int u=1<<18;

  370.             int v=1<<18;

  371.             int j;

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

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

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

  375.             }

  376. 

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

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

  379.         }

  380. 

  381.     if (CONFIG_SWSCALE_ALPHA && aDest)

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

  383.             int val=1<<18;

  384.             int j;

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

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

  387. 

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

  389.         }

  390. 

  391. }

  392. 

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

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

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

  396. {

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

  398.     int i;

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

  400.         int val=1<<18;

  401.         int j;

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

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

  404. 

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

  406.     }

  407. 

  408.     if (!uDest)

  409.         return;

  410. 

  411.     if (dstFormat == PIX_FMT_NV12)

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

  413.             int u=1<<18;

  414.             int v=1<<18;

  415.             int j;

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

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

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

  419.             }

  420. 

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

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

  423.         }

  424.     else

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

  426.             int u=1<<18;

  427.             int v=1<<18;

  428.             int j;

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

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

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

  432.             }

  433. 

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

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

  436.         }

  437. }

  438. 

  439. #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \

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

  441.         int j;\

  442.         int Y1 = 1<<18;\

  443.         int Y2 = 1<<18;\

  444.         int U  = 1<<18;\

  445.         int V  = 1<<18;\

  446.         int av_unused A1, A2;\

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

  448.         const int i2= 2*i;\

  449.         \

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

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

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

  453.         }\

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

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

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

  457.         }\

  458.         Y1>>=19;\

  459.         Y2>>=19;\

  460.         U >>=19;\

  461.         V >>=19;\

  462.         if (alpha) {\

  463.             A1 = 1<<18;\

  464.             A2 = 1<<18;\

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

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

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

  468.             }\

  469.             A1>>=19;\

  470.             A2>>=19;\

  471.         }

  472. 

  473. #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \

  474.         YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\

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

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

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

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

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

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

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

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

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

  484.         }\

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

  486.             A1=av_clip_uint8(A1);\

  487.             A2=av_clip_uint8(A2);\

  488.         }

  489. 

  490. #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \

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

  492.         int j;\

  493.         int Y = 0;\

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

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

  496.         int av_unused A;\

  497.         int R,G,B;\

  498.         \

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

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

  501.         }\

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

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

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

  505.         }\

  506.         Y >>=10;\

  507.         U >>=10;\

  508.         V >>=10;\

  509.         if (alpha) {\

  510.             A = rnd;\

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

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

  513.             A >>=19;\

  514.             if (A&256)\

  515.                 A = av_clip_uint8(A);\

  516.         }

  517. 

  518. #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \

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

  520.         Y-= c->yuv2rgb_y_offset;\

  521.         Y*= c->yuv2rgb_y_coeff;\

  522.         Y+= rnd;\

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

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

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

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

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

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

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

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

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

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

  533.         }

  534. 

  535. #define YSCALE_YUV_2_GRAY16_C \

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

  537.         int j;\

  538.         int Y1 = 1<<18;\

  539.         int Y2 = 1<<18;\

  540.         int U  = 1<<18;\

  541.         int V  = 1<<18;\

  542.         \

  543.         const int i2= 2*i;\

  544.         \

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

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

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

  548.         }\

  549.         Y1>>=11;\

  550.         Y2>>=11;\

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

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

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

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

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

  556.         }

  557. 

  558. #define YSCALE_YUV_2_RGBX_C(type,alpha) \

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

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

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

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

  563. 

  564. #define YSCALE_YUV_2_PACKED2_C(type,alpha)   \

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

  566.         const int i2= 2*i;       \

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

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

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

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

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

  572.         int av_unused A1, A2;                                         \

  573.         if (alpha) {\

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

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

  576.         }

  577. 

  578. #define YSCALE_YUV_2_GRAY16_2_C   \

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

  580.         const int i2= 2*i;       \

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

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

  583. 

  584. #define YSCALE_YUV_2_RGB2_C(type,alpha) \

  585.     YSCALE_YUV_2_PACKED2_C(type,alpha)\

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

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

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

  589. 

  590. #define YSCALE_YUV_2_PACKED1_C(type,alpha) \

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

  592.         const int i2= 2*i;\

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

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

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

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

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

  598.         int av_unused A1, A2;\

  599.         if (alpha) {\

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

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

  602.         }

  603. 

  604. #define YSCALE_YUV_2_GRAY16_1_C \

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

  606.         const int i2= 2*i;\

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

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

  609. 

  610. #define YSCALE_YUV_2_RGB1_C(type,alpha) \

  611.     YSCALE_YUV_2_PACKED1_C(type,alpha)\

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

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

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

  615. 

  616. #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \

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

  618.         const int i2= 2*i;\

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

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

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

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

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

  624.         int av_unused A1, A2;\

  625.         if (alpha) {\

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

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

  628.         }

  629. 

  630. #define YSCALE_YUV_2_RGB1B_C(type,alpha) \

  631.     YSCALE_YUV_2_PACKED1B_C(type,alpha)\

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

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

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

  635. 

  636. #define YSCALE_YUV_2_MONO2_C \

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

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

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

  640.         int acc;\

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

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

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

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

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

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

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

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

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

  650.         dest++;\

  651.     }

  652. 

  653. #define YSCALE_YUV_2_MONOX_C \

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

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

  656.     int acc=0;\

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

  658.         int j;\

  659.         int Y1=1<<18;\

  660.         int Y2=1<<18;\

  661. \

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

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

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

  665.         }\

  666.         Y1>>=19;\

  667.         Y2>>=19;\

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

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

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

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

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

  673.         }\

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

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

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

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

  678.             dest++;\

  679.         }\

  680.     }

  681. 

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

  683.     switch(c->dstFormat) {\

  684.     case PIX_FMT_RGB48BE:\

  685.     case PIX_FMT_RGB48LE:\

  686.         func(uint8_t,0)\

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

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

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

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

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

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

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

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

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

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

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

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

  699.             dest+=12;\

  700.         }\

  701.         break;\

  702.     case PIX_FMT_BGR48BE:\

  703.     case PIX_FMT_BGR48LE:\

  704.         func(uint8_t,0)\

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

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

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

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

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

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

  711.             dest+=12;\

  712.         }\

  713.         break;\

  714.     case PIX_FMT_RGBA:\

  715.     case PIX_FMT_BGRA:\

  716.         if (CONFIG_SMALL) {\

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

  718.             func(uint32_t,needAlpha)\

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

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

  721.             }\

  722.         } else {\

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

  724.                 func(uint32_t,1)\

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

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

  727.                 }\

  728.             } else {\

  729.                 func(uint32_t,0)\

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

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

  732.                 }\

  733.             }\

  734.         }\

  735.         break;\

  736.     case PIX_FMT_ARGB:\

  737.     case PIX_FMT_ABGR:\

  738.         if (CONFIG_SMALL) {\

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

  740.             func(uint32_t,needAlpha)\

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

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

  743.             }\

  744.         } else {\

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

  746.                 func(uint32_t,1)\

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

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

  749.                 }\

  750.             } else {\

  751.                 func(uint32_t,0)\

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

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

  754.                 }\

  755.             }\

  756.         }                \

  757.         break;\

  758.     case PIX_FMT_RGB24:\

  759.         func(uint8_t,0)\

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

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

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

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

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

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

  766.             dest+=6;\

  767.         }\

  768.         break;\

  769.     case PIX_FMT_BGR24:\

  770.         func(uint8_t,0)\

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

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

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

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

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

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

  777.             dest+=6;\

  778.         }\

  779.         break;\

  780.     case PIX_FMT_RGB565BE:\

  781.     case PIX_FMT_RGB565LE:\

  782.     case PIX_FMT_BGR565BE:\

  783.     case PIX_FMT_BGR565LE:\

  784.         {\

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

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

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

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

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

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

  791.             func(uint16_t,0)\

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

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

  794.             }\

  795.         }\

  796.         break;\

  797.     case PIX_FMT_RGB555BE:\

  798.     case PIX_FMT_RGB555LE:\

  799.     case PIX_FMT_BGR555BE:\

  800.     case PIX_FMT_BGR555LE:\

  801.         {\

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

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

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

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

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

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

  808.             func(uint16_t,0)\

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

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

  811.             }\

  812.         }\

  813.         break;\

  814.     case PIX_FMT_RGB444BE:\

  815.     case PIX_FMT_RGB444LE:\

  816.     case PIX_FMT_BGR444BE:\

  817.     case PIX_FMT_BGR444LE:\

  818.         {\

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

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

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

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

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

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

  825.             func(uint16_t,0)\

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

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

  828.             }\

  829.         }\

  830.         break;\

  831.     case PIX_FMT_RGB8:\

  832.     case PIX_FMT_BGR8:\

  833.         {\

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

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

  836.             func(uint8_t,0)\

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

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

  839.             }\

  840.         }\

  841.         break;\

  842.     case PIX_FMT_RGB4:\

  843.     case PIX_FMT_BGR4:\

  844.         {\

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

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

  847.             func(uint8_t,0)\

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

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

  850.             }\

  851.         }\

  852.         break;\

  853.     case PIX_FMT_RGB4_BYTE:\

  854.     case PIX_FMT_BGR4_BYTE:\

  855.         {\

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

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

  858.             func(uint8_t,0)\

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

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

  861.             }\

  862.         }\

  863.         break;\

  864.     case PIX_FMT_MONOBLACK:\

  865.     case PIX_FMT_MONOWHITE:\

  866.         {\

  867.             func_monoblack\

  868.         }\

  869.         break;\

  870.     case PIX_FMT_YUYV422:\

  871.         func2\

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

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

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

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

  876.         }                \

  877.         break;\

  878.     case PIX_FMT_UYVY422:\

  879.         func2\

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

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

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

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

  884.         }                \

  885.         break;\

  886.     case PIX_FMT_GRAY16BE:\

  887.         func_g16\

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

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

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

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

  892.         }                \

  893.         break;\

  894.     case PIX_FMT_GRAY16LE:\

  895.         func_g16\

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

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

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

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

  900.         }                \

  901.         break;\

  902.     }

  903. 

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

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

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

  907. {

  908.     int i;

  909.     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)

  910. }

  911. 

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

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

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

  915. {

  916.     int i;

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

  918.     int aidx= 3;

  919. 

  920.     switch(c->dstFormat) {

  921.     case PIX_FMT_ARGB:

  922.         dest++;

  923.         aidx= 0;

  924.     case PIX_FMT_RGB24:

  925.         aidx--;

  926.     case PIX_FMT_RGBA:

  927.         if (CONFIG_SMALL) {

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

  929.             YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)

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

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

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

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

  934.                 dest+= step;

  935.             }

  936.         } else {

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

  938.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)

  939.                     dest[aidx]= A;

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

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

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

  943.                     dest+= step;

  944.                 }

  945.             } else {

  946.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)

  947.                     dest[aidx]= 255;

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

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

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

  951.                     dest+= step;

  952.                 }

  953.             }

  954.         }

  955.         break;

  956.     case PIX_FMT_ABGR:

  957.         dest++;

  958.         aidx= 0;

  959.     case PIX_FMT_BGR24:

  960.         aidx--;

  961.     case PIX_FMT_BGRA:

  962.         if (CONFIG_SMALL) {

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

  964.             YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)

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

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

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

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

  969.                 dest+= step;

  970.             }

  971.         } else {

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

  973.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)

  974.                     dest[aidx]= A;

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

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

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

  978.                     dest+= step;

  979.                 }

  980.             } else {

  981.                 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)

  982.                     dest[aidx]= 255;

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

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

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

  986.                     dest+= step;

  987.                 }

  988.             }

  989.         }

  990.         break;

  991.     default:

  992.         assert(0);

  993.     }

  994. }

  995. 

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

  997. {

  998.     int i;

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

  1000.     for (i=0; i<height; i++) {

  1001.         memset(ptr, val, width);

  1002.         ptr += stride;

  1003.     }

  1004. }

  1005. 

  1006. static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, long width,

  1007.                             uint32_t *unused)

  1008. {

  1009.     int i;

  1010.     for (i = 0; i < width; i++) {

  1011.         int r = src[i*6+0];

  1012.         int g = src[i*6+2];

  1013.         int b = src[i*6+4];

  1014. 

  1015.         dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1016.     }

  1017. }

  1018. 

  1019. static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,

  1020.                              const uint8_t *src1, const uint8_t *src2,

  1021.                              long width, uint32_t *unused)

  1022. {

  1023.     int i;

  1024.     assert(src1==src2);

  1025.     for (i = 0; i < width; i++) {

  1026.         int r = src1[6*i + 0];

  1027.         int g = src1[6*i + 2];

  1028.         int b = src1[6*i + 4];

  1029. 

  1030.         dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1031.         dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1032.     }

  1033. }

  1034. 

  1035. static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,

  1036.                                   const uint8_t *src1, const uint8_t *src2,

  1037.                                   long width, uint32_t *unused)

  1038. {

  1039.     int i;

  1040.     assert(src1==src2);

  1041.     for (i = 0; i < width; i++) {

  1042.         int r= src1[12*i + 0] + src1[12*i + 6];

  1043.         int g= src1[12*i + 2] + src1[12*i + 8];

  1044.         int b= src1[12*i + 4] + src1[12*i + 10];

  1045. 

  1046.         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1047.         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1048.     }

  1049. }

  1050. 

  1051. static inline void bgr48ToY(uint8_t *dst, const uint8_t *src, long width,

  1052.                             uint32_t *unused)

  1053. {

  1054.     int i;

  1055.     for (i = 0; i < width; i++) {

  1056.         int b = src[i*6+0];

  1057.         int g = src[i*6+2];

  1058.         int r = src[i*6+4];

  1059. 

  1060.         dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1061.     }

  1062. }

  1063. 

  1064. static inline void bgr48ToUV(uint8_t *dstU, uint8_t *dstV,

  1065.                              const uint8_t *src1, const uint8_t *src2,

  1066.                              long width, uint32_t *unused)

  1067. {

  1068.     int i;

  1069.     for (i = 0; i < width; i++) {

  1070.         int b = src1[6*i + 0];

  1071.         int g = src1[6*i + 2];

  1072.         int r = src1[6*i + 4];

  1073. 

  1074.         dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1075.         dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;

  1076.     }

  1077. }

  1078. 

  1079. static inline void bgr48ToUV_half(uint8_t *dstU, uint8_t *dstV,

  1080.                                   const uint8_t *src1, const uint8_t *src2,

  1081.                                   long width, uint32_t *unused)

  1082. {

  1083.     int i;

  1084.     for (i = 0; i < width; i++) {

  1085.         int b= src1[12*i + 0] + src1[12*i + 6];

  1086.         int g= src1[12*i + 2] + src1[12*i + 8];

  1087.         int r= src1[12*i + 4] + src1[12*i + 10];

  1088. 

  1089.         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1090.         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);

  1091.     }

  1092. }

  1093. 

  1094. #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\

  1095. static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\

  1096. {\

  1097.     int i;\

  1098.     for (i=0; i<width; i++) {\

  1099.         int b= (((const type*)src)[i]>>shb)&maskb;\

  1100.         int g= (((const type*)src)[i]>>shg)&maskg;\

  1101.         int r= (((const type*)src)[i]>>shr)&maskr;\

  1102. \

  1103.         dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\

  1104.     }\

  1105. }

  1106. 

  1107. BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)

  1108. BGR2Y(uint32_t,bgr321ToY,16,16, 0, 0xFF00, 0x00FF, 0xFF00, RY    , GY<<8, BY    , RGB2YUV_SHIFT+8)

  1109. BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)

  1110. BGR2Y(uint32_t,rgb321ToY, 0,16,16, 0xFF00, 0x00FF, 0xFF00, RY    , GY<<8, BY    , RGB2YUV_SHIFT+8)

  1111. BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY    , RGB2YUV_SHIFT+8)

  1112. BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY    , RGB2YUV_SHIFT+7)

  1113. BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY    , GY<<5, BY<<11, RGB2YUV_SHIFT+8)

  1114. BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY    , GY<<5, BY<<10, RGB2YUV_SHIFT+7)

  1115. 

  1116. static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1117. {

  1118.     int i;

  1119.     for (i=0; i<width; i++) {

  1120.         dst[i]= src[4*i];

  1121.     }

  1122. }

  1123. 

  1124. #define BGR2UV(type, name, shr, shg, shb, shp, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S) \

  1125. static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\

  1126. {\

  1127.     int i;\

  1128.     for (i=0; i<width; i++) {\

  1129.         int b= ((((const type*)src)[i]>>shp)&maskb)>>shb;\

  1130.         int g= ((((const type*)src)[i]>>shp)&maskg)>>shg;\

  1131.         int r= ((((const type*)src)[i]>>shp)&maskr)>>shr;\

  1132. \

  1133.         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\

  1134.         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\

  1135.     }\

  1136. }\

  1137. static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\

  1138. {\

  1139.     int i;\

  1140.     for (i=0; i<width; i++) {\

  1141.         int pix0= ((const type*)src)[2*i+0]>>shp;\

  1142.         int pix1= ((const type*)src)[2*i+1]>>shp;\

  1143.         int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\

  1144.         int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\

  1145.         int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\

  1146.         g&= maskg|(2*maskg);\

  1147. \

  1148.         g>>=shg;\

  1149. \

  1150.         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\

  1151.         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\

  1152.     }\

  1153. }

  1154. 

  1155. BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1156. BGR2UV(uint32_t,bgr321ToUV,16, 0, 0, 8, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1157. BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1158. BGR2UV(uint32_t,rgb321ToUV, 0, 0,16, 8,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)

  1159. BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0,   0x001F, 0x07E0,   0xF800, RU<<11, GU<<5, BU    , RV<<11, GV<<5, BV    , RGB2YUV_SHIFT+8)

  1160. BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0,   0x001F, 0x03E0,   0x7C00, RU<<10, GU<<5, BU    , RV<<10, GV<<5, BV    , RGB2YUV_SHIFT+7)

  1161. BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0,   0xF800, 0x07E0,   0x001F, RU    , GU<<5, BU<<11, RV    , GV<<5, BV<<11, RGB2YUV_SHIFT+8)

  1162. BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0,   0x7C00, 0x03E0,   0x001F, RU    , GU<<5, BU<<10, RV    , GV<<5, BV<<10, RGB2YUV_SHIFT+7)

  1163. 

  1164. static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)

  1165. {

  1166.     int i;

  1167.     for (i=0; i<width; i++) {

  1168.         int d= src[i];

  1169. 

  1170.         dst[i]= pal[d] & 0xFF;

  1171.     }

  1172. }

  1173. 

  1174. static inline void palToUV(uint8_t *dstU, uint8_t *dstV,

  1175.                            const uint8_t *src1, const uint8_t *src2,

  1176.                            long width, uint32_t *pal)

  1177. {

  1178.     int i;

  1179.     assert(src1 == src2);

  1180.     for (i=0; i<width; i++) {

  1181.         int p= pal[src1[i]];

  1182. 

  1183.         dstU[i]= p>>8;

  1184.         dstV[i]= p>>16;

  1185.     }

  1186. }

  1187. 

  1188. static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1189. {

  1190.     int i, j;

  1191.     for (i=0; i<width/8; i++) {

  1192.         int d= ~src[i];

  1193.         for(j=0; j<8; j++)

  1194.             dst[8*i+j]= ((d>>(7-j))&1)*255;

  1195.     }

  1196. }

  1197. 

  1198. static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)

  1199. {

  1200.     int i, j;

  1201.     for (i=0; i<width/8; i++) {

  1202.         int d= src[i];

  1203.         for(j=0; j<8; j++)

  1204.             dst[8*i+j]= ((d>>(7-j))&1)*255;

  1205.     }

  1206. }

  1207. 

  1208. //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one

  1209. //Plain C versions

  1210. #if CONFIG_RUNTIME_CPUDETECT

  1211. #  define COMPILE_C 1

  1212. #  if   ARCH_X86

  1213. #    define COMPILE_MMX     1

  1214. #    define COMPILE_MMX2    1

  1215. #    define COMPILE_3DNOW   1

  1216. #  elif ARCH_PPC

  1217. #    define COMPILE_ALTIVEC HAVE_ALTIVEC

  1218. #  endif

  1219. #else /* CONFIG_RUNTIME_CPUDETECT */

  1220. #  if   ARCH_X86

  1221. #    if   HAVE_MMX2

  1222. #      define COMPILE_MMX2  1

  1223. #    elif HAVE_AMD3DNOW

  1224. #      define COMPILE_3DNOW 1

  1225. #    elif HAVE_MMX

  1226. #      define COMPILE_MMX   1

  1227. #    else

  1228. #      define COMPILE_C     1

  1229. #    endif

  1230. #  elif ARCH_PPC && HAVE_ALTIVEC

  1231. #    define COMPILE_ALTIVEC 1

  1232. #  else

  1233. #    define COMPILE_C       1

  1234. #  endif

  1235. #endif

  1236. 

  1237. #ifndef COMPILE_C

  1238. #  define COMPILE_C 0

  1239. #endif

  1240. #ifndef COMPILE_MMX

  1241. #  define COMPILE_MMX 0

  1242. #endif

  1243. #ifndef COMPILE_MMX2

  1244. #  define COMPILE_MMX2 0

  1245. #endif

  1246. #ifndef COMPILE_3DNOW

  1247. #  define COMPILE_3DNOW 0

  1248. #endif

  1249. #ifndef COMPILE_ALTIVEC

  1250. #  define COMPILE_ALTIVEC 0

  1251. #endif

  1252. 

  1253. #define COMPILE_TEMPLATE_MMX 0

  1254. #define COMPILE_TEMPLATE_MMX2 0

  1255. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1256. #define COMPILE_TEMPLATE_ALTIVEC 0

  1257. 

  1258. #if COMPILE_C

  1259. #define RENAME(a) a ## _C

  1260. #include "swscale_template.c"

  1261. #endif

  1262. 

  1263. #if COMPILE_ALTIVEC

  1264. #undef RENAME

  1265. #undef COMPILE_TEMPLATE_ALTIVEC

  1266. #define COMPILE_TEMPLATE_ALTIVEC 1

  1267. #define RENAME(a) a ## _altivec

  1268. #include "swscale_template.c"

  1269. #endif

  1270. 

  1271. #if ARCH_X86

  1272. 

  1273. //MMX versions

  1274. #if COMPILE_MMX

  1275. #undef RENAME

  1276. #undef COMPILE_TEMPLATE_MMX

  1277. #undef COMPILE_TEMPLATE_MMX2

  1278. #undef COMPILE_TEMPLATE_AMD3DNOW

  1279. #define COMPILE_TEMPLATE_MMX 1

  1280. #define COMPILE_TEMPLATE_MMX2 0

  1281. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1282. #define RENAME(a) a ## _MMX

  1283. #include "swscale_template.c"

  1284. #endif

  1285. 

  1286. //MMX2 versions

  1287. #if COMPILE_MMX2

  1288. #undef RENAME

  1289. #undef COMPILE_TEMPLATE_MMX

  1290. #undef COMPILE_TEMPLATE_MMX2

  1291. #undef COMPILE_TEMPLATE_AMD3DNOW

  1292. #define COMPILE_TEMPLATE_MMX 1

  1293. #define COMPILE_TEMPLATE_MMX2 1

  1294. #define COMPILE_TEMPLATE_AMD3DNOW 0

  1295. #define RENAME(a) a ## _MMX2

  1296. #include "swscale_template.c"

  1297. #endif

  1298. 

  1299. //3DNOW versions

  1300. #if COMPILE_3DNOW

  1301. #undef RENAME

  1302. #undef COMPILE_TEMPLATE_MMX

  1303. #undef COMPILE_TEMPLATE_MMX2

  1304. #undef COMPILE_TEMPLATE_AMD3DNOW

  1305. #define COMPILE_TEMPLATE_MMX 1

  1306. #define COMPILE_TEMPLATE_MMX2 0

  1307. #define COMPILE_TEMPLATE_AMD3DNOW 1

  1308. #define RENAME(a) a ## _3DNow

  1309. #include "swscale_template.c"

  1310. #endif

  1311. 

  1312. #endif //ARCH_X86

  1313. 

  1314. SwsFunc ff_getSwsFunc(SwsContext *c)

  1315. {

  1316. #if CONFIG_RUNTIME_CPUDETECT

  1317.     int flags = c->flags;

  1318. 

  1319.     int cpuflags = av_get_cpu_flags();

  1320. 

  1321.     flags |= (cpuflags & AV_CPU_FLAG_MMX ? SWS_CPU_CAPS_MMX : 0);

  1322.     flags |= (cpuflags & AV_CPU_FLAG_MMX2 ? SWS_CPU_CAPS_MMX2 : 0);

  1323.     flags |= (cpuflags & AV_CPU_FLAG_3DNOW ? SWS_CPU_CAPS_3DNOW : 0);

  1324. 

  1325. #if ARCH_X86

  1326.     // ordered per speed fastest first

  1327.     if (flags & SWS_CPU_CAPS_MMX2) {

  1328.         sws_init_swScale_MMX2(c);

  1329.         return swScale_MMX2;

  1330.     } else if (flags & SWS_CPU_CAPS_3DNOW) {

  1331.         sws_init_swScale_3DNow(c);

  1332.         return swScale_3DNow;

  1333.     } else if (flags & SWS_CPU_CAPS_MMX) {

  1334.         sws_init_swScale_MMX(c);

  1335.         return swScale_MMX;

  1336.     } else {

  1337.         sws_init_swScale_C(c);

  1338.         return swScale_C;

  1339.     }

  1340. 

  1341. #else

  1342. #if COMPILE_ALTIVEC

  1343.     if (flags & SWS_CPU_CAPS_ALTIVEC) {

  1344.         sws_init_swScale_altivec(c);

  1345.         return swScale_altivec;

  1346.     } else {

  1347.         sws_init_swScale_C(c);

  1348.         return swScale_C;

  1349.     }

  1350. #endif

  1351.     sws_init_swScale_C(c);

  1352.     return swScale_C;

  1353. #endif /* ARCH_X86 */

  1354. #else //CONFIG_RUNTIME_CPUDETECT

  1355. #if   COMPILE_TEMPLATE_MMX2

  1356.     sws_init_swScale_MMX2(c);

  1357.     return swScale_MMX2;

  1358. #elif COMPILE_TEMPLATE_AMD3DNOW

  1359.     sws_init_swScale_3DNow(c);

  1360.     return swScale_3DNow;

  1361. #elif COMPILE_TEMPLATE_MMX

  1362.     sws_init_swScale_MMX(c);

  1363.     return swScale_MMX;

  1364. #elif COMPILE_TEMPLATE_ALTIVEC

  1365.     sws_init_swScale_altivec(c);

  1366.     return swScale_altivec;

  1367. #else

  1368.     sws_init_swScale_C(c);

  1369.     return swScale_C;

  1370. #endif

  1371. #endif //!CONFIG_RUNTIME_CPUDETECT

  1372. }

  1373. 

  1374. static void copyPlane(const uint8_t *src, int srcStride,

  1375.                       int srcSliceY, int srcSliceH, int width,

  1376.                       uint8_t *dst, int dstStride)

  1377. {

  1378.     dst += dstStride * srcSliceY;

  1379.     if (dstStride == srcStride && srcStride > 0) {

  1380.         memcpy(dst, src, srcSliceH * dstStride);

  1381.     } else {

  1382.         int i;

  1383.         for (i=0; i<srcSliceH; i++) {

  1384.             memcpy(dst, src, width);

  1385.             src += srcStride;

  1386.             dst += dstStride;

  1387.         }

  1388.     }

  1389. }

  1390. 

  1391. static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1392.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1393. {

  1394.     uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;

  1395. 

  1396.     copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,

  1397.               dstParam[0], dstStride[0]);

  1398. 

  1399.     if (c->dstFormat == PIX_FMT_NV12)

  1400.         interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);

  1401.     else

  1402.         interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);

  1403. 

  1404.     return srcSliceH;

  1405. }

  1406. 

  1407. static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1408.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1409. {

  1410.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1411. 

  1412.     yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);

  1413. 

  1414.     return srcSliceH;

  1415. }

  1416. 

  1417. static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1418.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1419. {

  1420.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1421. 

  1422.     yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);

  1423. 

  1424.     return srcSliceH;

  1425. }

  1426. 

  1427. static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1428.                                 int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1429. {

  1430.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1431. 

  1432.     yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);

  1433. 

  1434.     return srcSliceH;

  1435. }

  1436. 

  1437. static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1438.                                 int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1439. {

  1440.     uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;

  1441. 

  1442.     yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);

  1443. 

  1444.     return srcSliceH;

  1445. }

  1446. 

  1447. static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1448.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1449. {

  1450.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1451.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;

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

  1453. 

  1454.     yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1455. 

  1456.     if (dstParam[3])

  1457.         fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1458. 

  1459.     return srcSliceH;

  1460. }

  1461. 

  1462. static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1463.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1464. {

  1465.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1466.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;

  1467.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;

  1468. 

  1469.     yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1470. 

  1471.     return srcSliceH;

  1472. }

  1473. 

  1474. static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1475.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1476. {

  1477.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1478.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;

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

  1480. 

  1481.     uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1482. 

  1483.     if (dstParam[3])

  1484.         fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1485. 

  1486.     return srcSliceH;

  1487. }

  1488. 

  1489. static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1490.                                int srcSliceH, uint8_t* dstParam[], int dstStride[])

  1491. {

  1492.     uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;

  1493.     uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;

  1494.     uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;

  1495. 

  1496.     uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);

  1497. 

  1498.     return srcSliceH;

  1499. }

  1500. 

  1501. static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1502. {

  1503.     long i;

  1504.     for (i=0; i<num_pixels; i++)

  1505.         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);

  1506. }

  1507. 

  1508. static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1509. {

  1510.     long i;

  1511. 

  1512.     for (i=0; i<num_pixels; i++)

  1513.         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];

  1514. }

  1515. 

  1516. static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  1517. {

  1518.     long i;

  1519. 

  1520.     for (i=0; i<num_pixels; i++) {

  1521.         //FIXME slow?

  1522.         dst[0]= palette[src[i<<1]*4+0];

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

  1524.         dst[2]= palette[src[i<<1]*4+2];

  1525.         dst+= 3;

  1526.     }

  1527. }

  1528. 

  1529. static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1530.                            int srcSliceH, uint8_t* dst[], int dstStride[])

  1531. {

  1532.     const enum PixelFormat srcFormat= c->srcFormat;

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

  1534.     void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,

  1535.                  const uint8_t *palette)=NULL;

  1536.     int i;

  1537.     uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;

  1538.     const uint8_t *srcPtr= src[0];

  1539. 

  1540.     if (srcFormat == PIX_FMT_Y400A) {

  1541.         switch (dstFormat) {

  1542.         case PIX_FMT_RGB32  : conv = gray8aToPacked32; break;

  1543.         case PIX_FMT_BGR32  : conv = gray8aToPacked32; break;

  1544.         case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;

  1545.         case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;

  1546.         case PIX_FMT_RGB24  : conv = gray8aToPacked24; break;

  1547.         case PIX_FMT_BGR24  : conv = gray8aToPacked24; break;

  1548.         }

  1549.     } else if (usePal(srcFormat)) {

  1550.         switch (dstFormat) {

  1551.         case PIX_FMT_RGB32  : conv = sws_convertPalette8ToPacked32; break;

  1552.         case PIX_FMT_BGR32  : conv = sws_convertPalette8ToPacked32; break;

  1553.         case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;

  1554.         case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;

  1555.         case PIX_FMT_RGB24  : conv = sws_convertPalette8ToPacked24; break;

  1556.         case PIX_FMT_BGR24  : conv = sws_convertPalette8ToPacked24; break;

  1557.         }

  1558.     }

  1559. 

  1560.     if (!conv)

  1561.         av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",

  1562.                sws_format_name(srcFormat), sws_format_name(dstFormat));

  1563.     else {

  1564.         for (i=0; i<srcSliceH; i++) {

  1565.             conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);

  1566.             srcPtr+= srcStride[0];

  1567.             dstPtr+= dstStride[0];

  1568.         }

  1569.     }

  1570. 

  1571.     return srcSliceH;

  1572. }

  1573. 

  1574. #define isRGBA32(x) (            \

  1575.            (x) == PIX_FMT_ARGB   \

  1576.         || (x) == PIX_FMT_RGBA   \

  1577.         || (x) == PIX_FMT_BGRA   \

  1578.         || (x) == PIX_FMT_ABGR   \

  1579.         )

  1580. 

  1581. /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */

  1582. static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1583.                            int srcSliceH, uint8_t* dst[], int dstStride[])

  1584. {

  1585.     const enum PixelFormat srcFormat= c->srcFormat;

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

  1587.     const int srcBpp= (c->srcFormatBpp + 7) >> 3;

  1588.     const int dstBpp= (c->dstFormatBpp + 7) >> 3;

  1589.     const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */

  1590.     const int dstId= c->dstFormatBpp >> 2;

  1591.     void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;

  1592. 

  1593. #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)

  1594. 

  1595.     if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {

  1596.         if (     CONV_IS(ABGR, RGBA)

  1597.               || CONV_IS(ARGB, BGRA)

  1598.               || CONV_IS(BGRA, ARGB)

  1599.               || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;

  1600.         else if (CONV_IS(ABGR, ARGB)

  1601.               || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;

  1602.         else if (CONV_IS(ABGR, BGRA)

  1603.               || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;

  1604.         else if (CONV_IS(BGRA, RGBA)

  1605.               || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;

  1606.         else if (CONV_IS(BGRA, ABGR)

  1607.               || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;

  1608.     } else

  1609.     /* BGR -> BGR */

  1610.     if (  (isBGRinInt(srcFormat) && isBGRinInt(dstFormat))

  1611.        || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {

  1612.         switch(srcId | (dstId<<4)) {

  1613.         case 0x34: conv= rgb16to15; break;

  1614.         case 0x36: conv= rgb24to15; break;

  1615.         case 0x38: conv= rgb32to15; break;

  1616.         case 0x43: conv= rgb15to16; break;

  1617.         case 0x46: conv= rgb24to16; break;

  1618.         case 0x48: conv= rgb32to16; break;

  1619.         case 0x63: conv= rgb15to24; break;

  1620.         case 0x64: conv= rgb16to24; break;

  1621.         case 0x68: conv= rgb32to24; break;

  1622.         case 0x83: conv= rgb15to32; break;

  1623.         case 0x84: conv= rgb16to32; break;

  1624.         case 0x86: conv= rgb24to32; break;

  1625.         }

  1626.     } else if (  (isBGRinInt(srcFormat) && isRGBinInt(dstFormat))

  1627.              || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {

  1628.         switch(srcId | (dstId<<4)) {

  1629.         case 0x33: conv= rgb15tobgr15; break;

  1630.         case 0x34: conv= rgb16tobgr15; break;

  1631.         case 0x36: conv= rgb24tobgr15; break;

  1632.         case 0x38: conv= rgb32tobgr15; break;

  1633.         case 0x43: conv= rgb15tobgr16; break;

  1634.         case 0x44: conv= rgb16tobgr16; break;

  1635.         case 0x46: conv= rgb24tobgr16; break;

  1636.         case 0x48: conv= rgb32tobgr16; break;

  1637.         case 0x63: conv= rgb15tobgr24; break;

  1638.         case 0x64: conv= rgb16tobgr24; break;

  1639.         case 0x66: conv= rgb24tobgr24; break;

  1640.         case 0x68: conv= rgb32tobgr24; break;

  1641.         case 0x83: conv= rgb15tobgr32; break;

  1642.         case 0x84: conv= rgb16tobgr32; break;

  1643.         case 0x86: conv= rgb24tobgr32; break;

  1644.         }

  1645.     }

  1646. 

  1647.     if (!conv) {

  1648.         av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",

  1649.                sws_format_name(srcFormat), sws_format_name(dstFormat));

  1650.     } else {

  1651.         const uint8_t *srcPtr= src[0];

  1652.               uint8_t *dstPtr= dst[0];

  1653.         if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat))

  1654.             srcPtr += ALT32_CORR;

  1655. 

  1656.         if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat))

  1657.             dstPtr += ALT32_CORR;

  1658. 

  1659.         if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)

  1660.             conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);

  1661.         else {

  1662.             int i;

  1663.             dstPtr += dstStride[0]*srcSliceY;

  1664. 

  1665.             for (i=0; i<srcSliceH; i++) {

  1666.                 conv(srcPtr, dstPtr, c->srcW*srcBpp);

  1667.                 srcPtr+= srcStride[0];

  1668.                 dstPtr+= dstStride[0];

  1669.             }

  1670.         }

  1671.     }

  1672.     return srcSliceH;

  1673. }

  1674. 

  1675. static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1676.                               int srcSliceH, uint8_t* dst[], int dstStride[])

  1677. {

  1678.     rgb24toyv12(

  1679.         src[0],

  1680.         dst[0]+ srcSliceY    *dstStride[0],

  1681.         dst[1]+(srcSliceY>>1)*dstStride[1],

  1682.         dst[2]+(srcSliceY>>1)*dstStride[2],

  1683.         c->srcW, srcSliceH,

  1684.         dstStride[0], dstStride[1], srcStride[0]);

  1685.     if (dst[3])

  1686.         fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1687.     return srcSliceH;

  1688. }

  1689. 

  1690. static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1691.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1692. {

  1693.     copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,

  1694.               dst[0], dstStride[0]);

  1695. 

  1696.     planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,

  1697.              srcSliceH >> 2, srcStride[1], dstStride[1]);

  1698.     planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,

  1699.              srcSliceH >> 2, srcStride[2], dstStride[2]);

  1700.     if (dst[3])

  1701.         fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);

  1702.     return srcSliceH;

  1703. }

  1704. 

  1705. /* unscaled copy like stuff (assumes nearly identical formats) */

  1706. static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1707.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1708. {

  1709.     if (dstStride[0]==srcStride[0] && srcStride[0] > 0)

  1710.         memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);

  1711.     else {

  1712.         int i;

  1713.         const uint8_t *srcPtr= src[0];

  1714.         uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;

  1715.         int length=0;

  1716. 

  1717.         /* universal length finder */

  1718.         while(length+c->srcW <= FFABS(dstStride[0])

  1719.            && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;

  1720.         assert(length!=0);

  1721. 

  1722.         for (i=0; i<srcSliceH; i++) {

  1723.             memcpy(dstPtr, srcPtr, length);

  1724.             srcPtr+= srcStride[0];

  1725.             dstPtr+= dstStride[0];

  1726.         }

  1727.     }

  1728.     return srcSliceH;

  1729. }

  1730. 

  1731. static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,

  1732.                              int srcSliceH, uint8_t* dst[], int dstStride[])

  1733. {

  1734.     int plane, i, j;

  1735.     for (plane=0; plane<4; plane++) {

  1736.         int length= (plane==0 || plane==3) ? c->srcW  : -((-c->srcW  )>>c->chrDstHSubSample);

  1737.         int y=      (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);

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

  1739.         const uint8_t *srcPtr= src[plane];

  1740.         uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;

  1741. 

  1742.         if (!dst[plane]) continue;

  1743.         // ignore palette for GRAY8

  1744.         if (plane == 1 && !dst[2]) continue;

  1745.         if (!src[plane] || (plane == 1 && !src[2])) {

  1746.             if(is16BPS(c->dstFormat))

  1747.                 length*=2;

  1748.             fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);

  1749.         } else {

  1750.             if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {

  1751.                 if (!isBE(c->srcFormat)) srcPtr++;

  1752.                 for (i=0; i<height; i++) {

  1753.                     for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];

  1754.                     srcPtr+= srcStride[plane];

  1755.                     dstPtr+= dstStride[plane];

  1756.                 }

  1757.             } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {

  1758.                 for (i=0; i<height; i++) {

  1759.                     for (j=0; j<length; j++) {

  1760.                         dstPtr[ j<<1   ] = srcPtr[j];

  1761.                         dstPtr[(j<<1)+1] = srcPtr[j];

  1762.                     }

  1763.                     srcPtr+= srcStride[plane];

  1764.                     dstPtr+= dstStride[plane];

  1765.                 }

  1766.             } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)

  1767.                   && isBE(c->srcFormat) != isBE(c->dstFormat)) {

  1768. 

  1769.                 for (i=0; i<height; i++) {

  1770.                     for (j=0; j<length; j++)

  1771.                         ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);

  1772.                     srcPtr+= srcStride[plane];

  1773.                     dstPtr+= dstStride[plane];

  1774.                 }

  1775.             } else if (dstStride[plane] == srcStride[plane] &&

  1776.                        srcStride[plane] > 0 && srcStride[plane] == length) {

  1777.                 memcpy(dst[plane] + dstStride[plane]*y, src[plane],

  1778.                        height*dstStride[plane]);

  1779.             } else {

  1780.                 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))

  1781.                     length*=2;

  1782.                 for (i=0; i<height; i++) {

  1783.                     memcpy(dstPtr, srcPtr, length);

  1784.                     srcPtr+= srcStride[plane];

  1785.                     dstPtr+= dstStride[plane];

  1786.                 }

  1787.             }

  1788.         }

  1789.     }

  1790.     return srcSliceH;

  1791. }

  1792. 

  1793. int ff_hardcodedcpuflags(void)

  1794. {

  1795.     int flags = 0;

  1796. #if   COMPILE_TEMPLATE_MMX2

  1797.     flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;

  1798. #elif COMPILE_TEMPLATE_AMD3DNOW

  1799.     flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;

  1800. #elif COMPILE_TEMPLATE_MMX

  1801.     flags |= SWS_CPU_CAPS_MMX;

  1802. #elif COMPILE_TEMPLATE_ALTIVEC

  1803.     flags |= SWS_CPU_CAPS_ALTIVEC;

  1804. #elif ARCH_BFIN

  1805.     flags |= SWS_CPU_CAPS_BFIN;

  1806. #endif

  1807.     return flags;

  1808. }

  1809. 

  1810. void ff_get_unscaled_swscale(SwsContext *c)

  1811. {

  1812.     const enum PixelFormat srcFormat = c->srcFormat;

  1813.     const enum PixelFormat dstFormat = c->dstFormat;

  1814.     const int flags = c->flags;

  1815.     const int dstH = c->dstH;

  1816.     int needsDither;

  1817. 

  1818.     needsDither= isAnyRGB(dstFormat)

  1819.         &&  c->dstFormatBpp < 24

  1820.         && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));

  1821. 

  1822.     /* yv12_to_nv12 */

  1823.     if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {

  1824.         c->swScale= planarToNv12Wrapper;

  1825.     }

  1826.     /* yuv2bgr */

  1827.     if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)

  1828.         && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {

  1829.         c->swScale= ff_yuv2rgb_get_func_ptr(c);

  1830.     }

  1831. 

  1832.     if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {

  1833.         c->swScale= yvu9ToYv12Wrapper;

  1834.     }

  1835. 

  1836.     /* bgr24toYV12 */

  1837.     if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))

  1838.         c->swScale= bgr24ToYv12Wrapper;

  1839. 

  1840.     /* RGB/BGR -> RGB/BGR (no dither needed forms) */

  1841.     if (   isAnyRGB(srcFormat)

  1842.         && isAnyRGB(dstFormat)

  1843.         && srcFormat != PIX_FMT_BGR8      && dstFormat != PIX_FMT_BGR8

  1844.         && srcFormat != PIX_FMT_RGB8      && dstFormat != PIX_FMT_RGB8

  1845.         && srcFormat != PIX_FMT_BGR4      && dstFormat != PIX_FMT_BGR4

  1846.         && srcFormat != PIX_FMT_RGB4      && dstFormat != PIX_FMT_RGB4

  1847.         && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE

  1848.         && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE

  1849.         && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK

  1850.         && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE

  1851.         && srcFormat != PIX_FMT_RGB48LE   && dstFormat != PIX_FMT_RGB48LE

  1852.         && srcFormat != PIX_FMT_RGB48BE   && dstFormat != PIX_FMT_RGB48BE

  1853.         && srcFormat != PIX_FMT_BGR48LE   && dstFormat != PIX_FMT_BGR48LE

  1854.         && srcFormat != PIX_FMT_BGR48BE   && dstFormat != PIX_FMT_BGR48BE

  1855.         && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))

  1856.         c->swScale= rgbToRgbWrapper;

  1857. 

  1858.     if ((usePal(srcFormat) && (

  1859.         dstFormat == PIX_FMT_RGB32   ||

  1860.         dstFormat == PIX_FMT_RGB32_1 ||

  1861.         dstFormat == PIX_FMT_RGB24   ||

  1862.         dstFormat == PIX_FMT_BGR32   ||

  1863.         dstFormat == PIX_FMT_BGR32_1 ||

  1864.         dstFormat == PIX_FMT_BGR24)))

  1865.         c->swScale= palToRgbWrapper;

  1866. 

  1867.     if (srcFormat == PIX_FMT_YUV422P) {

  1868.         if (dstFormat == PIX_FMT_YUYV422)

  1869.             c->swScale= yuv422pToYuy2Wrapper;

  1870.         else if (dstFormat == PIX_FMT_UYVY422)

  1871.             c->swScale= yuv422pToUyvyWrapper;

  1872.     }

  1873. 

  1874.     /* LQ converters if -sws 0 or -sws 4*/

  1875.     if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {

  1876.         /* yv12_to_yuy2 */

  1877.         if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {

  1878.             if (dstFormat == PIX_FMT_YUYV422)

  1879.                 c->swScale= planarToYuy2Wrapper;

  1880.             else if (dstFormat == PIX_FMT_UYVY422)

  1881.                 c->swScale= planarToUyvyWrapper;

  1882.         }

  1883.     }

  1884.     if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))

  1885.         c->swScale= yuyvToYuv420Wrapper;

  1886.     if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))

  1887.         c->swScale= uyvyToYuv420Wrapper;

  1888.     if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)

  1889.         c->swScale= yuyvToYuv422Wrapper;

  1890.     if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)

  1891.         c->swScale= uyvyToYuv422Wrapper;

  1892. 

  1893. #if COMPILE_ALTIVEC

  1894.     if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&

  1895.         !(c->flags & SWS_BITEXACT) &&

  1896.         srcFormat == PIX_FMT_YUV420P) {

  1897.         // unscaled YV12 -> packed YUV, we want speed

  1898.         if (dstFormat == PIX_FMT_YUYV422)

  1899.             c->swScale= yv12toyuy2_unscaled_altivec;

  1900.         else if (dstFormat == PIX_FMT_UYVY422)

  1901.             c->swScale= yv12touyvy_unscaled_altivec;

  1902.     }

  1903. #endif

  1904. 

  1905.     /* simple copy */

  1906.     if (  srcFormat == dstFormat

  1907.         || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)

  1908.         || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)

  1909.         || (isPlanarYUV(srcFormat) && isGray(dstFormat))

  1910.         || (isPlanarYUV(dstFormat) && isGray(srcFormat))

  1911.         || (isGray(dstFormat) && isGray(srcFormat))

  1912.         || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)

  1913.             && c->chrDstHSubSample == c->chrSrcHSubSample

  1914.             && c->chrDstVSubSample == c->chrSrcVSubSample

  1915.             && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21

  1916.             && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))

  1917.     {

  1918.         if (isPacked(c->srcFormat))

  1919.             c->swScale= packedCopyWrapper;

  1920.         else /* Planar YUV or gray */

  1921.             c->swScale= planarCopyWrapper;

  1922.     }

  1923. #if ARCH_BFIN

  1924.     if (flags & SWS_CPU_CAPS_BFIN)

  1925.         ff_bfin_get_unscaled_swscale (c);

  1926. #endif

  1927. }

  1928. 

  1929. static void reset_ptr(const uint8_t* src[], int format)

  1930. {

  1931.     if(!isALPHA(format))

  1932.         src[3]=NULL;

  1933.     if(!isPlanarYUV(format)) {

  1934.         src[3]=src[2]=NULL;

  1935. 

  1936.         if (!usePal(format))

  1937.             src[1]= NULL;

  1938.     }

  1939. }

  1940. 

  1941. static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,

  1942.                                 const int linesizes[4])

  1943. {

  1944.     const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];

  1945.     int i;

  1946. 

  1947.     for (i = 0; i < 4; i++) {

  1948.         int plane = desc->comp[i].plane;

  1949.         if (!data[plane] || !linesizes[plane])

  1950.             return 0;

  1951.     }

  1952. 

  1953.     return 1;

  1954. }

  1955. 

  1956. /**

  1957.  * swscale wrapper, so we don't need to export the SwsContext.

  1958.  * Assumes planar YUV to be in YUV order instead of YVU.

  1959.  */

  1960. int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,

  1961.               int srcSliceH, uint8_t* const dst[], const int dstStride[])

  1962. {

  1963.     int i;

  1964.     const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};

  1965.     uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};

  1966. 

  1967.     // do not mess up sliceDir if we have a "trailing" 0-size slice

  1968.     if (srcSliceH == 0)

  1969.         return 0;

  1970. 

  1971.     if (!check_image_pointers(src, c->srcFormat, srcStride)) {

  1972.         av_log(c, AV_LOG_ERROR, "bad src image pointers\n");

  1973.         return 0;

  1974.     }

  1975.     if (!check_image_pointers(dst, c->dstFormat, dstStride)) {

  1976.         av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");

  1977.         return 0;

  1978.     }

  1979. 

  1980.     if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {

  1981.         av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");

  1982.         return 0;

  1983.     }

  1984.     if (c->sliceDir == 0) {

  1985.         if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;

  1986.     }

  1987. 

  1988.     if (usePal(c->srcFormat)) {

  1989.         for (i=0; i<256; i++) {

  1990.             int p, r, g, b,y,u,v;

  1991.             if(c->srcFormat == PIX_FMT_PAL8) {

  1992.                 p=((const uint32_t*)(src[1]))[i];

  1993.                 r= (p>>16)&0xFF;

  1994.                 g= (p>> 8)&0xFF;

  1995.                 b=  p     &0xFF;

  1996.             } else if(c->srcFormat == PIX_FMT_RGB8) {

  1997.                 r= (i>>5    )*36;

  1998.                 g= ((i>>2)&7)*36;

  1999.                 b= (i&3     )*85;

  2000.             } else if(c->srcFormat == PIX_FMT_BGR8) {

  2001.                 b= (i>>6    )*85;

  2002.                 g= ((i>>3)&7)*36;

  2003.                 r= (i&7     )*36;

  2004.             } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {

  2005.                 r= (i>>3    )*255;

  2006.                 g= ((i>>1)&3)*85;

  2007.                 b= (i&1     )*255;

  2008.             } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_Y400A) {

  2009.                 r = g = b = i;

  2010.             } else {

  2011.                 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);

  2012.                 b= (i>>3    )*255;

  2013.                 g= ((i>>1)&3)*85;

  2014.                 r= (i&1     )*255;

  2015.             }

  2016.             y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2017.             u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2018.             v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);

  2019.             c->pal_yuv[i]= y + (u<<8) + (v<<16);

  2020. 

  2021.             switch(c->dstFormat) {

  2022.             case PIX_FMT_BGR32:

  2023. #if !HAVE_BIGENDIAN

  2024.             case PIX_FMT_RGB24:

  2025. #endif

  2026.                 c->pal_rgb[i]=  r + (g<<8) + (b<<16);

  2027.                 break;

  2028.             case PIX_FMT_BGR32_1:

  2029. #if HAVE_BIGENDIAN

  2030.             case PIX_FMT_BGR24:

  2031. #endif

  2032.                 c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;

  2033.                 break;

  2034.             case PIX_FMT_RGB32_1:

  2035. #if HAVE_BIGENDIAN

  2036.             case PIX_FMT_RGB24:

  2037. #endif

  2038.                 c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;

  2039.                 break;

  2040.             case PIX_FMT_RGB32:

  2041. #if !HAVE_BIGENDIAN

  2042.             case PIX_FMT_BGR24:

  2043. #endif

  2044.             default:

  2045.                 c->pal_rgb[i]=  b + (g<<8) + (r<<16);

  2046.             }

  2047.         }

  2048.     }

  2049. 

  2050.     // copy strides, so they can safely be modified

  2051.     if (c->sliceDir == 1) {

  2052.         // slices go from top to bottom

  2053.         int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};

  2054.         int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};

  2055. 

  2056.         reset_ptr(src2, c->srcFormat);

  2057.         reset_ptr((const uint8_t**)dst2, c->dstFormat);

  2058. 

  2059.         /* reset slice direction at end of frame */

  2060.         if (srcSliceY + srcSliceH == c->srcH)

  2061.             c->sliceDir = 0;

  2062. 

  2063.         return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);

  2064.     } else {

  2065.         // slices go from bottom to top => we flip the image internally

  2066.         int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};

  2067.         int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};

  2068. 

  2069.         src2[0] += (srcSliceH-1)*srcStride[0];

  2070.         if (!usePal(c->srcFormat))

  2071.             src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];

  2072.         src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];

  2073.         src2[3] += (srcSliceH-1)*srcStride[3];

  2074.         dst2[0] += ( c->dstH                      -1)*dstStride[0];

  2075.         dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];

  2076.         dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];

  2077.         dst2[3] += ( c->dstH                      -1)*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)

  2084.             c->sliceDir = 0;

  2085. 

  2086.         return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);

  2087.     }

  2088. }

  2089. 

  2090. #if LIBSWSCALE_VERSION_MAJOR < 1

  2091. int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,

  2092.                       int srcSliceH, uint8_t* dst[], int dstStride[])

  2093. {

  2094.     return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);

  2095. }

  2096. #endif

  2097. 

  2098. /* Convert the palette to the same packed 32-bit format as the palette */

  2099. void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  2100. {

  2101.     long i;

  2102. 

  2103.     for (i=0; i<num_pixels; i++)

  2104.         ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];

  2105. }

  2106. 

  2107. /* Palette format: ABCD -> dst format: ABC */

  2108. void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)

  2109. {

  2110.     long i;

  2111. 

  2112.     for (i=0; i<num_pixels; i++) {

  2113.         //FIXME slow?

  2114.         dst[0]= palette[src[i]*4+0];

  2115.         dst[1]= palette[src[i]*4+1];

  2116.         dst[2]= palette[src[i]*4+2];

  2117.         dst+= 3;

  2118.     }

  2119. }