swscale.c 106 KB
Newer Older
1
/*
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public 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
 * the C code (not assembly, mmx, ...) of this file can be used
 * under the LGPL license too
22
 */
23

24
/*
25
  supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
26
  supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
27
  {BGR,RGB}{1,4,8,15,16} support dithering
28

29 30 31 32 33 34
  unscaled special converters (YV12=I420=IYUV, Y800=Y8)
  YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
  x -> x
  YUV9 -> YV12
  YUV9/YV12 -> Y800
  Y800 -> YUV9/YV12
Michael Niedermayer's avatar
Michael Niedermayer committed
35 36
  BGR24 -> BGR32 & RGB24 -> RGB32
  BGR32 -> BGR24 & RGB32 -> RGB24
Michael Niedermayer's avatar
Michael Niedermayer committed
37
  BGR15 -> BGR16
Michael Niedermayer's avatar
Michael Niedermayer committed
38 39
*/

40
/*
Diego Biurrun's avatar
typos  
Diego Biurrun committed
41
tested special converters (most are tested actually, but I did not write it down ...)
42
 YV12 -> BGR16
Michael Niedermayer's avatar
Michael Niedermayer committed
43
 YV12 -> YV12
Michael Niedermayer's avatar
Michael Niedermayer committed
44
 BGR15 -> BGR16
45
 BGR16 -> BGR16
46
 YVU9 -> YV12
Michael Niedermayer's avatar
Michael Niedermayer committed
47 48

untested special converters
Diego Biurrun's avatar
Diego Biurrun committed
49
  YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be ok)
50 51
  YV12/I420 -> YV12/I420
  YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
Michael Niedermayer's avatar
Michael Niedermayer committed
52 53
  BGR24 -> BGR32 & RGB24 -> RGB32
  BGR32 -> BGR24 & RGB32 -> RGB24
Michael Niedermayer's avatar
Michael Niedermayer committed
54
  BGR24 -> YV12
55 56
*/

57
#define _SVID_SOURCE //needed for MAP_ANONYMOUS
58
#include <inttypes.h>
59
#include <string.h>
60
#include <math.h>
61
#include <stdio.h>
Bohdan Horst's avatar
Bohdan Horst committed
62
#include <unistd.h>
63
#include "config.h"
Michael Niedermayer's avatar
Michael Niedermayer committed
64
#include <assert.h>
65 66
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
67 68 69
#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
#define MAP_ANONYMOUS MAP_ANON
#endif
70
#endif
71
#include "swscale.h"
72
#include "swscale_internal.h"
73
#include "rgb2rgb.h"
74 75
#include "libavutil/x86_cpu.h"
#include "libavutil/bswap.h"
Arpi's avatar
Arpi committed
76

77 78 79 80 81
unsigned swscale_version(void)
{
    return LIBSWSCALE_VERSION_INT;
}

Michael Niedermayer's avatar
Michael Niedermayer committed
82
#undef MOVNTQ
83
#undef PAVGB
84

85
//#undef HAVE_MMX2
Michael Niedermayer's avatar
101  
Michael Niedermayer committed
86
//#define HAVE_3DNOW
87
//#undef HAVE_MMX
88
//#undef ARCH_X86
Michael Niedermayer's avatar
101++  
Michael Niedermayer committed
89
//#define WORDS_BIGENDIAN
90
#define DITHER1XBPP
91

Michael Niedermayer's avatar
Michael Niedermayer committed
92 93
#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit

94
#define RET 0xC3 //near return opcode for X86
95

96 97 98 99 100
#ifdef M_PI
#define PI M_PI
#else
#define PI 3.14159265358979323846
#endif
101

102 103
#define isSupportedIn(x)    (       \
           (x)==PIX_FMT_YUV420P     \
104
        || (x)==PIX_FMT_YUVA420P    \
105 106 107
        || (x)==PIX_FMT_YUYV422     \
        || (x)==PIX_FMT_UYVY422     \
        || (x)==PIX_FMT_RGB32       \
108
        || (x)==PIX_FMT_RGB32_1     \
109 110 111 112
        || (x)==PIX_FMT_BGR24       \
        || (x)==PIX_FMT_BGR565      \
        || (x)==PIX_FMT_BGR555      \
        || (x)==PIX_FMT_BGR32       \
113
        || (x)==PIX_FMT_BGR32_1     \
114 115 116 117 118
        || (x)==PIX_FMT_RGB24       \
        || (x)==PIX_FMT_RGB565      \
        || (x)==PIX_FMT_RGB555      \
        || (x)==PIX_FMT_GRAY8       \
        || (x)==PIX_FMT_YUV410P     \
119
        || (x)==PIX_FMT_YUV440P     \
120 121 122 123 124 125 126 127 128 129
        || (x)==PIX_FMT_GRAY16BE    \
        || (x)==PIX_FMT_GRAY16LE    \
        || (x)==PIX_FMT_YUV444P     \
        || (x)==PIX_FMT_YUV422P     \
        || (x)==PIX_FMT_YUV411P     \
        || (x)==PIX_FMT_PAL8        \
        || (x)==PIX_FMT_BGR8        \
        || (x)==PIX_FMT_RGB8        \
        || (x)==PIX_FMT_BGR4_BYTE   \
        || (x)==PIX_FMT_RGB4_BYTE   \
Andreas Öman's avatar
Andreas Öman committed
130
        || (x)==PIX_FMT_YUV440P     \
131 132
        || (x)==PIX_FMT_MONOWHITE   \
        || (x)==PIX_FMT_MONOBLACK   \
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148
    )
#define isSupportedOut(x)   (       \
           (x)==PIX_FMT_YUV420P     \
        || (x)==PIX_FMT_YUYV422     \
        || (x)==PIX_FMT_UYVY422     \
        || (x)==PIX_FMT_YUV444P     \
        || (x)==PIX_FMT_YUV422P     \
        || (x)==PIX_FMT_YUV411P     \
        || isRGB(x)                 \
        || isBGR(x)                 \
        || (x)==PIX_FMT_NV12        \
        || (x)==PIX_FMT_NV21        \
        || (x)==PIX_FMT_GRAY16BE    \
        || (x)==PIX_FMT_GRAY16LE    \
        || (x)==PIX_FMT_GRAY8       \
        || (x)==PIX_FMT_YUV410P     \
149
        || (x)==PIX_FMT_YUV440P     \
150 151 152 153 154 155 156 157
    )
#define isPacked(x)         (       \
           (x)==PIX_FMT_PAL8        \
        || (x)==PIX_FMT_YUYV422     \
        || (x)==PIX_FMT_UYVY422     \
        || isRGB(x)                 \
        || isBGR(x)                 \
    )
158 159 160 161 162 163 164
#define usePal(x)           (       \
           (x)==PIX_FMT_PAL8        \
        || (x)==PIX_FMT_BGR4_BYTE   \
        || (x)==PIX_FMT_RGB4_BYTE   \
        || (x)==PIX_FMT_BGR8        \
        || (x)==PIX_FMT_RGB8        \
    )
165

166
#define RGB2YUV_SHIFT 15
167 168 169 170 171 172 173 174 175
#define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
176

177 178
extern const int32_t Inverse_Table_6_9[8][4];

179 180 181 182 183 184 185 186 187 188 189
static const double rgb2yuv_table[8][9]={
    {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
    {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
    {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
    {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
    {0.59  , 0.11  , 0.30  , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
    {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
    {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
    {0.701 , 0.087 , 0.212 , -0.384, 0.5  -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
};

190 191
/*
NOTES
192
Special versions: fast Y 1:1 scaling (no interpolation in y direction)
193

194
TODO
Diego Biurrun's avatar
typo  
Diego Biurrun committed
195
more intelligent misalignment avoidance for the horizontal scaler
196 197
write special vertical cubic upscale version
Optimize C code (yv12 / minmax)
198
add support for packed pixel yuv input & output
199 200
add support for Y8 output
optimize bgr24 & bgr32
201
add BGR4 output support
202
write special BGR->BGR scaler
203
*/
204

205
#if defined(ARCH_X86) && defined (CONFIG_GPL)
206 207 208 209 210 211 212 213
DECLARE_ASM_CONST(8, uint64_t, bF8)=       0xF8F8F8F8F8F8F8F8LL;
DECLARE_ASM_CONST(8, uint64_t, bFC)=       0xFCFCFCFCFCFCFCFCLL;
DECLARE_ASM_CONST(8, uint64_t, w10)=       0x0010001000100010LL;
DECLARE_ASM_CONST(8, uint64_t, w02)=       0x0002000200020002LL;
DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
214

215
const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]) = {
216 217
        0x0103010301030103LL,
        0x0200020002000200LL,};
Michael Niedermayer's avatar
Michael Niedermayer committed
218

219
const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]) = {
220 221
        0x0602060206020602LL,
        0x0004000400040004LL,};
222

223 224 225 226 227 228
DECLARE_ASM_CONST(8, uint64_t, b16Mask)=   0x001F001F001F001FLL;
DECLARE_ASM_CONST(8, uint64_t, g16Mask)=   0x07E007E007E007E0LL;
DECLARE_ASM_CONST(8, uint64_t, r16Mask)=   0xF800F800F800F800LL;
DECLARE_ASM_CONST(8, uint64_t, b15Mask)=   0x001F001F001F001FLL;
DECLARE_ASM_CONST(8, uint64_t, g15Mask)=   0x03E003E003E003E0LL;
DECLARE_ASM_CONST(8, uint64_t, r15Mask)=   0x7C007C007C007C00LL;
229

230 231 232
DECLARE_ALIGNED(8, const uint64_t, ff_M24A)         = 0x00FF0000FF0000FFLL;
DECLARE_ALIGNED(8, const uint64_t, ff_M24B)         = 0xFF0000FF0000FF00LL;
DECLARE_ALIGNED(8, const uint64_t, ff_M24C)         = 0x0000FF0000FF0000LL;
Michael Niedermayer's avatar
Michael Niedermayer committed
233

Michael Niedermayer's avatar
Michael Niedermayer committed
234
#ifdef FAST_BGR2YV12
235 236 237
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff)   = 0x000000210041000DULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff)   = 0x0000FFEEFFDC0038ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff)   = 0x00000038FFD2FFF8ULL;
Michael Niedermayer's avatar
Michael Niedermayer committed
238
#else
239 240 241
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff)   = 0x000020E540830C8BULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff)   = 0x0000ED0FDAC23831ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff)   = 0x00003831D0E6F6EAULL;
Diego Biurrun's avatar
Diego Biurrun committed
242
#endif /* FAST_BGR2YV12 */
243 244 245
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset)  = 0x1010101010101010ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_w1111)        = 0x0001000100010001ULL;
246 247 248 249 250 251 252 253 254 255 256 257 258 259

DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
DECLARE_ALIGNED(8, const uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
DECLARE_ALIGNED(8, const uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;

DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toUV[2][4]) = {
    {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
    {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
};

DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;

260
#endif /* defined(ARCH_X86) */
261 262 263 264

// clipping helper table for C implementations:
static unsigned char clip_table[768];

265
static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
266

267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372
const uint8_t  __attribute__((aligned(8))) dither_2x2_4[2][8]={
{  1,   3,   1,   3,   1,   3,   1,   3, },
{  2,   0,   2,   0,   2,   0,   2,   0, },
};

const uint8_t  __attribute__((aligned(8))) dither_2x2_8[2][8]={
{  6,   2,   6,   2,   6,   2,   6,   2, },
{  0,   4,   0,   4,   0,   4,   0,   4, },
};

const uint8_t  __attribute__((aligned(8))) dither_8x8_32[8][8]={
{ 17,   9,  23,  15,  16,   8,  22,  14, },
{  5,  29,   3,  27,   4,  28,   2,  26, },
{ 21,  13,  19,  11,  20,  12,  18,  10, },
{  0,  24,   6,  30,   1,  25,   7,  31, },
{ 16,   8,  22,  14,  17,   9,  23,  15, },
{  4,  28,   2,  26,   5,  29,   3,  27, },
{ 20,  12,  18,  10,  21,  13,  19,  11, },
{  1,  25,   7,  31,   0,  24,   6,  30, },
};

#if 0
const uint8_t  __attribute__((aligned(8))) dither_8x8_64[8][8]={
{  0,  48,  12,  60,   3,  51,  15,  63, },
{ 32,  16,  44,  28,  35,  19,  47,  31, },
{  8,  56,   4,  52,  11,  59,   7,  55, },
{ 40,  24,  36,  20,  43,  27,  39,  23, },
{  2,  50,  14,  62,   1,  49,  13,  61, },
{ 34,  18,  46,  30,  33,  17,  45,  29, },
{ 10,  58,   6,  54,   9,  57,   5,  53, },
{ 42,  26,  38,  22,  41,  25,  37,  21, },
};
#endif

const uint8_t  __attribute__((aligned(8))) dither_8x8_73[8][8]={
{  0,  55,  14,  68,   3,  58,  17,  72, },
{ 37,  18,  50,  32,  40,  22,  54,  35, },
{  9,  64,   5,  59,  13,  67,   8,  63, },
{ 46,  27,  41,  23,  49,  31,  44,  26, },
{  2,  57,  16,  71,   1,  56,  15,  70, },
{ 39,  21,  52,  34,  38,  19,  51,  33, },
{ 11,  66,   7,  62,  10,  65,   6,  60, },
{ 48,  30,  43,  25,  47,  29,  42,  24, },
};

#if 0
const uint8_t  __attribute__((aligned(8))) dither_8x8_128[8][8]={
{ 68,  36,  92,  60,  66,  34,  90,  58, },
{ 20, 116,  12, 108,  18, 114,  10, 106, },
{ 84,  52,  76,  44,  82,  50,  74,  42, },
{  0,  96,  24, 120,   6, 102,  30, 126, },
{ 64,  32,  88,  56,  70,  38,  94,  62, },
{ 16, 112,   8, 104,  22, 118,  14, 110, },
{ 80,  48,  72,  40,  86,  54,  78,  46, },
{  4, 100,  28, 124,   2,  98,  26, 122, },
};
#endif

#if 1
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
{117,  62, 158, 103, 113,  58, 155, 100, },
{ 34, 199,  21, 186,  31, 196,  17, 182, },
{144,  89, 131,  76, 141,  86, 127,  72, },
{  0, 165,  41, 206,  10, 175,  52, 217, },
{110,  55, 151,  96, 120,  65, 162, 107, },
{ 28, 193,  14, 179,  38, 203,  24, 189, },
{138,  83, 124,  69, 148,  93, 134,  79, },
{  7, 172,  48, 213,   3, 168,  45, 210, },
};
#elif 1
// tries to correct a gamma of 1.5
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
{  0, 143,  18, 200,   2, 156,  25, 215, },
{ 78,  28, 125,  64,  89,  36, 138,  74, },
{ 10, 180,   3, 161,  16, 195,   8, 175, },
{109,  51,  93,  38, 121,  60, 105,  47, },
{  1, 152,  23, 210,   0, 147,  20, 205, },
{ 85,  33, 134,  71,  81,  30, 130,  67, },
{ 14, 190,   6, 171,  12, 185,   5, 166, },
{117,  57, 101,  44, 113,  54,  97,  41, },
};
#elif 1
// tries to correct a gamma of 2.0
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
{  0, 124,   8, 193,   0, 140,  12, 213, },
{ 55,  14, 104,  42,  66,  19, 119,  52, },
{  3, 168,   1, 145,   6, 187,   3, 162, },
{ 86,  31,  70,  21,  99,  39,  82,  28, },
{  0, 134,  11, 206,   0, 129,   9, 200, },
{ 62,  17, 114,  48,  58,  16, 109,  45, },
{  5, 181,   2, 157,   4, 175,   1, 151, },
{ 95,  36,  78,  26,  90,  34,  74,  24, },
};
#else
// tries to correct a gamma of 2.5
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
{  0, 107,   3, 187,   0, 125,   6, 212, },
{ 39,   7,  86,  28,  49,  11, 102,  36, },
{  1, 158,   0, 131,   3, 180,   1, 151, },
{ 68,  19,  52,  12,  81,  25,  64,  17, },
{  0, 119,   5, 203,   0, 113,   4, 195, },
{ 45,   9,  96,  33,  42,   8,  91,  30, },
{  2, 172,   1, 144,   2, 165,   0, 137, },
{ 77,  23,  60,  15,  72,  21,  56,  14, },
};
#endif
373

374
const char *sws_format_name(enum PixelFormat format)
375
{
376 377 378
    switch (format) {
        case PIX_FMT_YUV420P:
            return "yuv420p";
379 380
        case PIX_FMT_YUVA420P:
            return "yuva420p";
381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400
        case PIX_FMT_YUYV422:
            return "yuyv422";
        case PIX_FMT_RGB24:
            return "rgb24";
        case PIX_FMT_BGR24:
            return "bgr24";
        case PIX_FMT_YUV422P:
            return "yuv422p";
        case PIX_FMT_YUV444P:
            return "yuv444p";
        case PIX_FMT_RGB32:
            return "rgb32";
        case PIX_FMT_YUV410P:
            return "yuv410p";
        case PIX_FMT_YUV411P:
            return "yuv411p";
        case PIX_FMT_RGB565:
            return "rgb565";
        case PIX_FMT_RGB555:
            return "rgb555";
Kostya Shishkov's avatar
Kostya Shishkov committed
401 402 403 404
        case PIX_FMT_GRAY16BE:
            return "gray16be";
        case PIX_FMT_GRAY16LE:
            return "gray16le";
405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452
        case PIX_FMT_GRAY8:
            return "gray8";
        case PIX_FMT_MONOWHITE:
            return "mono white";
        case PIX_FMT_MONOBLACK:
            return "mono black";
        case PIX_FMT_PAL8:
            return "Palette";
        case PIX_FMT_YUVJ420P:
            return "yuvj420p";
        case PIX_FMT_YUVJ422P:
            return "yuvj422p";
        case PIX_FMT_YUVJ444P:
            return "yuvj444p";
        case PIX_FMT_XVMC_MPEG2_MC:
            return "xvmc_mpeg2_mc";
        case PIX_FMT_XVMC_MPEG2_IDCT:
            return "xvmc_mpeg2_idct";
        case PIX_FMT_UYVY422:
            return "uyvy422";
        case PIX_FMT_UYYVYY411:
            return "uyyvyy411";
        case PIX_FMT_RGB32_1:
            return "rgb32x";
        case PIX_FMT_BGR32_1:
            return "bgr32x";
        case PIX_FMT_BGR32:
            return "bgr32";
        case PIX_FMT_BGR565:
            return "bgr565";
        case PIX_FMT_BGR555:
            return "bgr555";
        case PIX_FMT_BGR8:
            return "bgr8";
        case PIX_FMT_BGR4:
            return "bgr4";
        case PIX_FMT_BGR4_BYTE:
            return "bgr4 byte";
        case PIX_FMT_RGB8:
            return "rgb8";
        case PIX_FMT_RGB4:
            return "rgb4";
        case PIX_FMT_RGB4_BYTE:
            return "rgb4 byte";
        case PIX_FMT_NV12:
            return "nv12";
        case PIX_FMT_NV21:
            return "nv21";
Andreas Öman's avatar
Andreas Öman committed
453 454
        case PIX_FMT_YUV440P:
            return "yuv440p";
455 456 457
        default:
            return "Unknown format";
    }
458 459
}

460
static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
461 462
                               int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                               uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
Michael Niedermayer's avatar
Michael Niedermayer committed
463
{
464 465 466 467 468 469 470 471 472 473 474 475
    //FIXME Optimize (just quickly writen not opti..)
    int i;
    for (i=0; i<dstW; i++)
    {
        int val=1<<18;
        int j;
        for (j=0; j<lumFilterSize; j++)
            val += lumSrc[j][i] * lumFilter[j];

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

476
    if (uDest)
477 478 479 480 481 482 483 484
        for (i=0; i<chrDstW; i++)
        {
            int u=1<<18;
            int v=1<<18;
            int j;
            for (j=0; j<chrFilterSize; j++)
            {
                u += chrSrc[j][i] * chrFilter[j];
485
                v += chrSrc[j][i + VOFW] * chrFilter[j];
486 487 488 489 490
            }

            uDest[i]= av_clip_uint8(u>>19);
            vDest[i]= av_clip_uint8(v>>19);
        }
Michael Niedermayer's avatar
Michael Niedermayer committed
491 492
}

Ville Syrjälä's avatar
Ville Syrjälä committed
493
static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
494 495
                                int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
Ville Syrjälä's avatar
Ville Syrjälä committed
496
{
497 498 499 500 501 502 503 504 505 506 507 508
    //FIXME Optimize (just quickly writen not opti..)
    int i;
    for (i=0; i<dstW; i++)
    {
        int val=1<<18;
        int j;
        for (j=0; j<lumFilterSize; j++)
            val += lumSrc[j][i] * lumFilter[j];

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

509
    if (!uDest)
510 511 512 513 514 515 516 517 518 519 520
        return;

    if (dstFormat == PIX_FMT_NV12)
        for (i=0; i<chrDstW; i++)
        {
            int u=1<<18;
            int v=1<<18;
            int j;
            for (j=0; j<chrFilterSize; j++)
            {
                u += chrSrc[j][i] * chrFilter[j];
521
                v += chrSrc[j][i + VOFW] * chrFilter[j];
522 523 524 525 526 527 528 529 530 531 532 533 534 535
            }

            uDest[2*i]= av_clip_uint8(u>>19);
            uDest[2*i+1]= av_clip_uint8(v>>19);
        }
    else
        for (i=0; i<chrDstW; i++)
        {
            int u=1<<18;
            int v=1<<18;
            int j;
            for (j=0; j<chrFilterSize; j++)
            {
                u += chrSrc[j][i] * chrFilter[j];
536
                v += chrSrc[j][i + VOFW] * chrFilter[j];
537 538 539 540 541
            }

            uDest[2*i]= av_clip_uint8(v>>19);
            uDest[2*i+1]= av_clip_uint8(u>>19);
        }
Ville Syrjälä's avatar
Ville Syrjälä committed
542
}
Michael Niedermayer's avatar
Michael Niedermayer committed
543

544
#define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type) \
545 546 547 548 549 550
    for (i=0; i<(dstW>>1); i++){\
        int j;\
        int Y1 = 1<<18;\
        int Y2 = 1<<18;\
        int U  = 1<<18;\
        int V  = 1<<18;\
551
        type av_unused *r, *b, *g;\
552 553 554 555 556 557 558 559 560 561
        const int i2= 2*i;\
        \
        for (j=0; j<lumFilterSize; j++)\
        {\
            Y1 += lumSrc[j][i2] * lumFilter[j];\
            Y2 += lumSrc[j][i2+1] * lumFilter[j];\
        }\
        for (j=0; j<chrFilterSize; j++)\
        {\
            U += chrSrc[j][i] * chrFilter[j];\
562
            V += chrSrc[j][i+VOFW] * chrFilter[j];\
563 564 565 566 567
        }\
        Y1>>=19;\
        Y2>>=19;\
        U >>=19;\
        V >>=19;\
568 569 570

#define YSCALE_YUV_2_PACKEDX_C(type) \
        YSCALE_YUV_2_PACKEDX_NOCLIP_C(type)\
571 572 573 574 575 576 577 578 579 580 581
        if ((Y1|Y2|U|V)&256)\
        {\
            if (Y1>255)   Y1=255; \
            else if (Y1<0)Y1=0;   \
            if (Y2>255)   Y2=255; \
            else if (Y2<0)Y2=0;   \
            if (U>255)    U=255;  \
            else if (U<0) U=0;    \
            if (V>255)    V=255;  \
            else if (V<0) V=0;    \
        }
582

583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603
#define YSCALE_YUV_2_PACKEDX_FULL_C \
    for (i=0; i<dstW; i++){\
        int j;\
        int Y = 0;\
        int U = -128<<19;\
        int V = -128<<19;\
        int R,G,B;\
        \
        for (j=0; j<lumFilterSize; j++){\
            Y += lumSrc[j][i     ] * lumFilter[j];\
        }\
        for (j=0; j<chrFilterSize; j++){\
            U += chrSrc[j][i     ] * chrFilter[j];\
            V += chrSrc[j][i+VOFW] * chrFilter[j];\
        }\
        Y >>=10;\
        U >>=10;\
        V >>=10;\

#define YSCALE_YUV_2_RGBX_FULL_C(rnd) \
    YSCALE_YUV_2_PACKEDX_FULL_C\
604 605
        Y-= c->yuv2rgb_y_offset;\
        Y*= c->yuv2rgb_y_coeff;\
606
        Y+= rnd;\
607 608 609
        R= Y + V*c->yuv2rgb_v2r_coeff;\
        G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
        B= Y +                          U*c->yuv2rgb_u2b_coeff;\
610 611 612 613 614 615 616 617 618 619
        if ((R|G|B)&(0xC0000000)){\
            if (R>=(256<<22))   R=(256<<22)-1; \
            else if (R<0)R=0;   \
            if (G>=(256<<22))   G=(256<<22)-1; \
            else if (G<0)G=0;   \
            if (B>=(256<<22))   B=(256<<22)-1; \
            else if (B<0)B=0;   \
        }\


620
#define YSCALE_YUV_2_GRAY16_C \
621 622 623 624 625 626
    for (i=0; i<(dstW>>1); i++){\
        int j;\
        int Y1 = 1<<18;\
        int Y2 = 1<<18;\
        int U  = 1<<18;\
        int V  = 1<<18;\
627
        \
628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644
        const int i2= 2*i;\
        \
        for (j=0; j<lumFilterSize; j++)\
        {\
            Y1 += lumSrc[j][i2] * lumFilter[j];\
            Y2 += lumSrc[j][i2+1] * lumFilter[j];\
        }\
        Y1>>=11;\
        Y2>>=11;\
        if ((Y1|Y2|U|V)&65536)\
        {\
            if (Y1>65535)   Y1=65535; \
            else if (Y1<0)Y1=0;   \
            if (Y2>65535)   Y2=65535; \
            else if (Y2<0)Y2=0;   \
        }

Michael Niedermayer's avatar
Michael Niedermayer committed
645
#define YSCALE_YUV_2_RGBX_C(type) \
646
    YSCALE_YUV_2_PACKEDX_C(type)  /* FIXME fix tables so that cliping is not needed and then use _NOCLIP*/\
647 648 649 650 651 652 653 654 655 656
    r = (type *)c->table_rV[V];   \
    g = (type *)(c->table_gU[U] + c->table_gV[V]); \
    b = (type *)c->table_bU[U];   \

#define YSCALE_YUV_2_PACKED2_C   \
    for (i=0; i<(dstW>>1); i++){ \
        const int i2= 2*i;       \
        int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>19;           \
        int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;           \
        int U= (uvbuf0[i     ]*uvalpha1+uvbuf1[i     ]*uvalpha)>>19;  \
657
        int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19;  \
Michael Niedermayer's avatar
Michael Niedermayer committed
658

659 660 661 662 663 664
#define YSCALE_YUV_2_GRAY16_2_C   \
    for (i=0; i<(dstW>>1); i++){ \
        const int i2= 2*i;       \
        int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>11;           \
        int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11;           \

Michael Niedermayer's avatar
Michael Niedermayer committed
665
#define YSCALE_YUV_2_RGB2_C(type) \
666 667 668 669 670
    YSCALE_YUV_2_PACKED2_C\
    type *r, *b, *g;\
    r = (type *)c->table_rV[V];\
    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
    b = (type *)c->table_bU[U];\
Michael Niedermayer's avatar
Michael Niedermayer committed
671

Michael Niedermayer's avatar
Michael Niedermayer committed
672
#define YSCALE_YUV_2_PACKED1_C \
673 674 675 676 677
    for (i=0; i<(dstW>>1); i++){\
        const int i2= 2*i;\
        int Y1= buf0[i2  ]>>7;\
        int Y2= buf0[i2+1]>>7;\
        int U= (uvbuf1[i     ])>>7;\
678
        int V= (uvbuf1[i+VOFW])>>7;\
Michael Niedermayer's avatar
Michael Niedermayer committed
679

680 681 682 683 684 685
#define YSCALE_YUV_2_GRAY16_1_C \
    for (i=0; i<(dstW>>1); i++){\
        const int i2= 2*i;\
        int Y1= buf0[i2  ]<<1;\
        int Y2= buf0[i2+1]<<1;\

Michael Niedermayer's avatar
Michael Niedermayer committed
686
#define YSCALE_YUV_2_RGB1_C(type) \
687 688 689 690 691
    YSCALE_YUV_2_PACKED1_C\
    type *r, *b, *g;\
    r = (type *)c->table_rV[V];\
    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
    b = (type *)c->table_bU[U];\
Michael Niedermayer's avatar
Michael Niedermayer committed
692

Michael Niedermayer's avatar
Michael Niedermayer committed
693
#define YSCALE_YUV_2_PACKED1B_C \
694 695 696 697 698
    for (i=0; i<(dstW>>1); i++){\
        const int i2= 2*i;\
        int Y1= buf0[i2  ]>>7;\
        int Y2= buf0[i2+1]>>7;\
        int U= (uvbuf0[i     ] + uvbuf1[i     ])>>8;\
699
        int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
Michael Niedermayer's avatar
Michael Niedermayer committed
700 701

#define YSCALE_YUV_2_RGB1B_C(type) \
702 703 704 705 706
    YSCALE_YUV_2_PACKED1B_C\
    type *r, *b, *g;\
    r = (type *)c->table_rV[V];\
    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
    b = (type *)c->table_bU[U];\
Michael Niedermayer's avatar
Michael Niedermayer committed
707

708
#define YSCALE_YUV_2_MONO2_C \
709 710 711 712 713 714 715 716 717 718 719 720
    const uint8_t * const d128=dither_8x8_220[y&7];\
    uint8_t *g= c->table_gU[128] + c->table_gV[128];\
    for (i=0; i<dstW-7; i+=8){\
        int acc;\
        acc =       g[((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19) + d128[0]];\
        acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
        acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
        acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
        acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
        acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
        acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
        acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
721
        ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
722 723 724 725
        dest++;\
    }\


726
#define YSCALE_YUV_2_MONOX_C \
727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
    const uint8_t * const d128=dither_8x8_220[y&7];\
    uint8_t *g= c->table_gU[128] + c->table_gV[128];\
    int acc=0;\
    for (i=0; i<dstW-1; i+=2){\
        int j;\
        int Y1=1<<18;\
        int Y2=1<<18;\
\
        for (j=0; j<lumFilterSize; j++)\
        {\
            Y1 += lumSrc[j][i] * lumFilter[j];\
            Y2 += lumSrc[j][i+1] * lumFilter[j];\
        }\
        Y1>>=19;\
        Y2>>=19;\
        if ((Y1|Y2)&256)\
        {\
            if (Y1>255)   Y1=255;\
            else if (Y1<0)Y1=0;\
            if (Y2>255)   Y2=255;\
            else if (Y2<0)Y2=0;\
        }\
        acc+= acc + g[Y1+d128[(i+0)&7]];\
        acc+= acc + g[Y2+d128[(i+1)&7]];\
        if ((i&7)==6){\
752
            ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
753 754 755 756 757 758
            dest++;\
        }\
    }


#define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
759 760 761 762
    switch(c->dstFormat)\
    {\
    case PIX_FMT_RGB32:\
    case PIX_FMT_BGR32:\
763 764
    case PIX_FMT_RGB32_1:\
    case PIX_FMT_BGR32_1:\
765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855
        func(uint32_t)\
            ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
            ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
        }                \
        break;\
    case PIX_FMT_RGB24:\
        func(uint8_t)\
            ((uint8_t*)dest)[0]= r[Y1];\
            ((uint8_t*)dest)[1]= g[Y1];\
            ((uint8_t*)dest)[2]= b[Y1];\
            ((uint8_t*)dest)[3]= r[Y2];\
            ((uint8_t*)dest)[4]= g[Y2];\
            ((uint8_t*)dest)[5]= b[Y2];\
            dest+=6;\
        }\
        break;\
    case PIX_FMT_BGR24:\
        func(uint8_t)\
            ((uint8_t*)dest)[0]= b[Y1];\
            ((uint8_t*)dest)[1]= g[Y1];\
            ((uint8_t*)dest)[2]= r[Y1];\
            ((uint8_t*)dest)[3]= b[Y2];\
            ((uint8_t*)dest)[4]= g[Y2];\
            ((uint8_t*)dest)[5]= r[Y2];\
            dest+=6;\
        }\
        break;\
    case PIX_FMT_RGB565:\
    case PIX_FMT_BGR565:\
        {\
            const int dr1= dither_2x2_8[y&1    ][0];\
            const int dg1= dither_2x2_4[y&1    ][0];\
            const int db1= dither_2x2_8[(y&1)^1][0];\
            const int dr2= dither_2x2_8[y&1    ][1];\
            const int dg2= dither_2x2_4[y&1    ][1];\
            const int db2= dither_2x2_8[(y&1)^1][1];\
            func(uint16_t)\
                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
            }\
        }\
        break;\
    case PIX_FMT_RGB555:\
    case PIX_FMT_BGR555:\
        {\
            const int dr1= dither_2x2_8[y&1    ][0];\
            const int dg1= dither_2x2_8[y&1    ][1];\
            const int db1= dither_2x2_8[(y&1)^1][0];\
            const int dr2= dither_2x2_8[y&1    ][1];\
            const int dg2= dither_2x2_8[y&1    ][0];\
            const int db2= dither_2x2_8[(y&1)^1][1];\
            func(uint16_t)\
                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
            }\
        }\
        break;\
    case PIX_FMT_RGB8:\
    case PIX_FMT_BGR8:\
        {\
            const uint8_t * const d64= dither_8x8_73[y&7];\
            const uint8_t * const d32= dither_8x8_32[y&7];\
            func(uint8_t)\
                ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
                ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
            }\
        }\
        break;\
    case PIX_FMT_RGB4:\
    case PIX_FMT_BGR4:\
        {\
            const uint8_t * const d64= dither_8x8_73 [y&7];\
            const uint8_t * const d128=dither_8x8_220[y&7];\
            func(uint8_t)\
                ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
                                 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
            }\
        }\
        break;\
    case PIX_FMT_RGB4_BYTE:\
    case PIX_FMT_BGR4_BYTE:\
        {\
            const uint8_t * const d64= dither_8x8_73 [y&7];\
            const uint8_t * const d128=dither_8x8_220[y&7];\
            func(uint8_t)\
                ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
                ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
            }\
        }\
        break;\
    case PIX_FMT_MONOBLACK:\
856
    case PIX_FMT_MONOWHITE:\
857
        {\
858
            func_monoblack\
859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876
        }\
        break;\
    case PIX_FMT_YUYV422:\
        func2\
            ((uint8_t*)dest)[2*i2+0]= Y1;\
            ((uint8_t*)dest)[2*i2+1]= U;\
            ((uint8_t*)dest)[2*i2+2]= Y2;\
            ((uint8_t*)dest)[2*i2+3]= V;\
        }                \
        break;\
    case PIX_FMT_UYVY422:\
        func2\
            ((uint8_t*)dest)[2*i2+0]= U;\
            ((uint8_t*)dest)[2*i2+1]= Y1;\
            ((uint8_t*)dest)[2*i2+2]= V;\
            ((uint8_t*)dest)[2*i2+3]= Y2;\
        }                \
        break;\
877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892
    case PIX_FMT_GRAY16BE:\
        func_g16\
            ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
            ((uint8_t*)dest)[2*i2+1]= Y1;\
            ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
            ((uint8_t*)dest)[2*i2+3]= Y2;\
        }                \
        break;\
    case PIX_FMT_GRAY16LE:\
        func_g16\
            ((uint8_t*)dest)[2*i2+0]= Y1;\
            ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
            ((uint8_t*)dest)[2*i2+2]= Y2;\
            ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
        }                \
        break;\
893
    }\
Michael Niedermayer's avatar
Michael Niedermayer committed
894 895


Michael Niedermayer's avatar
Michael Niedermayer committed
896
static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
897 898
                                  int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                  uint8_t *dest, int dstW, int y)
Michael Niedermayer's avatar
Michael Niedermayer committed
899
{
900
    int i;
901
    YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOX_C)
Michael Niedermayer's avatar
Michael Niedermayer committed
902 903
}

904 905 906 907 908 909
static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
                                    int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                    uint8_t *dest, int dstW, int y)
{
    int i;
    int step= fmt_depth(c->dstFormat)/8;
910
    int aidx= 3;
911 912 913 914

    switch(c->dstFormat){
    case PIX_FMT_ARGB:
        dest++;
915
        aidx= 0;
916
    case PIX_FMT_RGB24:
917
        aidx--;
918 919
    case PIX_FMT_RGBA:
        YSCALE_YUV_2_RGBX_FULL_C(1<<21)
920
            dest[aidx]= 0;
921 922 923 924 925 926 927 928
            dest[0]= R>>22;
            dest[1]= G>>22;
            dest[2]= B>>22;
            dest+= step;
        }
        break;
    case PIX_FMT_ABGR:
        dest++;
929
        aidx= 0;
930
    case PIX_FMT_BGR24:
931
        aidx--;
932 933
    case PIX_FMT_BGRA:
        YSCALE_YUV_2_RGBX_FULL_C(1<<21)
934
            dest[aidx]= 0;
935 936 937 938 939 940 941 942 943 944
            dest[0]= B>>22;
            dest[1]= G>>22;
            dest[2]= R>>22;
            dest+= step;
        }
        break;
    default:
        assert(0);
    }
}
Michael Niedermayer's avatar
Michael Niedermayer committed
945

Michael Niedermayer's avatar
Michael Niedermayer committed
946 947
//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
//Plain C versions
948
#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT) || !defined(CONFIG_GPL)
949 950 951
#define COMPILE_C
#endif

952
#ifdef ARCH_POWERPC
953
#if (defined (HAVE_ALTIVEC) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
954 955 956 957
#define COMPILE_ALTIVEC
#endif //HAVE_ALTIVEC
#endif //ARCH_POWERPC

958
#if defined(ARCH_X86)
959

960
#if ((defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
961 962 963
#define COMPILE_MMX
#endif

964
#if (defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
965 966 967
#define COMPILE_MMX2
#endif

968
#if ((defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
969 970
#define COMPILE_3DNOW
#endif
971
#endif //ARCH_X86 || ARCH_X86_64
972 973 974 975 976 977

#undef HAVE_MMX
#undef HAVE_MMX2
#undef HAVE_3DNOW

#ifdef COMPILE_C
Michael Niedermayer's avatar
Michael Niedermayer committed
978 979 980
#undef HAVE_MMX
#undef HAVE_MMX2
#undef HAVE_3DNOW
981
#undef HAVE_ALTIVEC
Michael Niedermayer's avatar
Michael Niedermayer committed
982 983
#define RENAME(a) a ## _C
#include "swscale_template.c"
984
#endif
Michael Niedermayer's avatar
Michael Niedermayer committed
985

986 987 988 989 990 991 992
#ifdef COMPILE_ALTIVEC
#undef RENAME
#define HAVE_ALTIVEC
#define RENAME(a) a ## _altivec
#include "swscale_template.c"
#endif

993
#if defined(ARCH_X86)
Michael Niedermayer's avatar
Michael Niedermayer committed
994

Michael Niedermayer's avatar
Michael Niedermayer committed
995 996 997 998 999 1000 1001 1002 1003
//X86 versions
/*
#undef RENAME
#undef HAVE_MMX
#undef HAVE_MMX2
#undef HAVE_3DNOW
#define ARCH_X86
#define RENAME(a) a ## _X86
#include "swscale_template.c"
Michael Niedermayer's avatar
Michael Niedermayer committed
1004
*/
Michael Niedermayer's avatar
Michael Niedermayer committed
1005
//MMX versions
1006
#ifdef COMPILE_MMX
Michael Niedermayer's avatar
Michael Niedermayer committed
1007 1008 1009 1010 1011 1012
#undef RENAME
#define HAVE_MMX
#undef HAVE_MMX2
#undef HAVE_3DNOW
#define RENAME(a) a ## _MMX
#include "swscale_template.c"
1013
#endif
Michael Niedermayer's avatar
Michael Niedermayer committed
1014 1015

//MMX2 versions
1016
#ifdef COMPILE_MMX2
Michael Niedermayer's avatar
Michael Niedermayer committed
1017 1018 1019 1020 1021 1022
#undef RENAME
#define HAVE_MMX
#define HAVE_MMX2
#undef HAVE_3DNOW
#define RENAME(a) a ## _MMX2
#include "swscale_template.c"
1023
#endif
Michael Niedermayer's avatar
Michael Niedermayer committed
1024 1025

//3DNOW versions
1026
#ifdef COMPILE_3DNOW
Michael Niedermayer's avatar
Michael Niedermayer committed
1027 1028 1029 1030 1031 1032
#undef RENAME
#define HAVE_MMX
#undef HAVE_MMX2
#define HAVE_3DNOW
#define RENAME(a) a ## _3DNow
#include "swscale_template.c"
1033
#endif
Michael Niedermayer's avatar
Michael Niedermayer committed
1034

1035
#endif //ARCH_X86 || ARCH_X86_64
Michael Niedermayer's avatar
Michael Niedermayer committed
1036

Gabucino's avatar
Gabucino committed
1037
// minor note: the HAVE_xyz is messed up after that line so don't use it
1038

Michael Niedermayer's avatar
Michael Niedermayer committed
1039 1040
static double getSplineCoeff(double a, double b, double c, double d, double dist)
{
1041 1042 1043 1044 1045 1046 1047
//    printf("%f %f %f %f %f\n", a,b,c,d,dist);
    if (dist<=1.0)      return ((d*dist + c)*dist + b)*dist +a;
    else                return getSplineCoeff(        0.0,
                                             b+ 2.0*c + 3.0*d,
                                                    c + 3.0*d,
                                            -b- 3.0*c - 6.0*d,
                                            dist-1.0);
Michael Niedermayer's avatar
Michael Niedermayer committed
1048
}
1049

1050
static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
1051 1052
                             int srcW, int dstW, int filterAlign, int one, int flags,
                             SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
1053
{
1054 1055 1056 1057
    int i;
    int filterSize;
    int filter2Size;
    int minFilterSize;
1058 1059 1060
    int64_t *filter=NULL;
    int64_t *filter2=NULL;
    const int64_t fone= 1LL<<54;
Michael Niedermayer's avatar
Michael Niedermayer committed
1061
    int ret= -1;
1062
#if defined(ARCH_X86)
1063
    if (flags & SWS_CPU_CAPS_MMX)
Diego Biurrun's avatar
Diego Biurrun committed
1064
        asm volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
1065
#endif
1066

1067 1068 1069 1070 1071 1072 1073
    // Note the +1 is for the MMXscaler which reads over the end
    *filterPos = av_malloc((dstW+1)*sizeof(int16_t));

    if (FFABS(xInc - 0x10000) <10) // unscaled
    {
        int i;
        filterSize= 1;
1074
        filter= av_mallocz(dstW*sizeof(*filter)*filterSize);
1075 1076 1077

        for (i=0; i<dstW; i++)
        {
1078
            filter[i*filterSize]= fone;
1079 1080 1081 1082 1083 1084 1085 1086 1087
            (*filterPos)[i]=i;
        }

    }
    else if (flags&SWS_POINT) // lame looking point sampling mode
    {
        int i;
        int xDstInSrc;
        filterSize= 1;
1088
        filter= av_malloc(dstW*sizeof(*filter)*filterSize);
1089 1090 1091 1092 1093 1094 1095

        xDstInSrc= xInc/2 - 0x8000;
        for (i=0; i<dstW; i++)
        {
            int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;

            (*filterPos)[i]= xx;
1096
            filter[i]= fone;
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
            xDstInSrc+= xInc;
        }
    }
    else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
    {
        int i;
        int xDstInSrc;
        if      (flags&SWS_BICUBIC) filterSize= 4;
        else if (flags&SWS_X      ) filterSize= 4;
        else                        filterSize= 2; // SWS_BILINEAR / SWS_AREA
1107
        filter= av_malloc(dstW*sizeof(*filter)*filterSize);
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118

        xDstInSrc= xInc/2 - 0x8000;
        for (i=0; i<dstW; i++)
        {
            int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
            int j;

            (*filterPos)[i]= xx;
                //Bilinear upscale / linear interpolate / Area averaging
                for (j=0; j<filterSize; j++)
                {
1119
                    int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
1120 1121 1122 1123 1124 1125 1126 1127 1128
                    if (coeff<0) coeff=0;
                    filter[i*filterSize + j]= coeff;
                    xx++;
                }
            xDstInSrc+= xInc;
        }
    }
    else
    {
1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139
        int xDstInSrc;
        int sizeFactor;

        if      (flags&SWS_BICUBIC)      sizeFactor=  4;
        else if (flags&SWS_X)            sizeFactor=  8;
        else if (flags&SWS_AREA)         sizeFactor=  1; //downscale only, for upscale it is bilinear
        else if (flags&SWS_GAUSS)        sizeFactor=  8;   // infinite ;