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.
52098 Commits
32 Branches
748MB
Tree: 8e27c6ebbb
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '8e27c6ebbb'
${ noResults }
FFmpeg/libswscale/rgb2rgb.c

390 lines
15KB
Raw Blame History 

  1. /*

  2.  * software RGB to RGB converter

  3.  * pluralize by software PAL8 to RGB converter

  4.  *              software YUV to YUV converter

  5.  *              software YUV to RGB converter

  6.  * Written by Nick Kurshev.

  7.  * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)

  8.  *

  9.  * This file is part of FFmpeg.

  10.  *

  11.  * FFmpeg is free software; you can redistribute it and/or

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

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

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

  15.  *

  16.  * FFmpeg is distributed in the hope that it will be useful,

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

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

  19.  * Lesser General Public License for more details.

  20.  *

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

  22.  * License along with FFmpeg; if not, write to the Free Software

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

  24.  */

  25. 

  26. #include <inttypes.h>

  27. 

  28. #include "libavutil/attributes.h"

  29. #include "libavutil/bswap.h"

  30. #include "config.h"

  31. #include "rgb2rgb.h"

  32. #include "swscale.h"

  33. #include "swscale_internal.h"

  34. 

  35. void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);

  36. void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);

  37. void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);

  38. void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size);

  39. void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);

  40. void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);

  41. void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);

  42. void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);

  43. void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);

  44. 

  45. void (*rgb32to16)(const uint8_t *src, uint8_t *dst, int src_size);

  46. void (*rgb32to15)(const uint8_t *src, uint8_t *dst, int src_size);

  47. void (*rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size);

  48. void (*rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size);

  49. void (*rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size);

  50. void (*rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size);

  51. void (*rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size);

  52. void (*rgb15to32)(const uint8_t *src, uint8_t *dst, int src_size);

  53. 

  54. void (*shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size);

  55. 

  56. void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc,

  57.                    const uint8_t *vsrc, uint8_t *dst,

  58.                    int width, int height,

  59.                    int lumStride, int chromStride, int dstStride);

  60. void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc,

  61.                    const uint8_t *vsrc, uint8_t *dst,

  62.                    int width, int height,

  63.                    int lumStride, int chromStride, int dstStride);

  64. void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc,

  65.                       const uint8_t *vsrc, uint8_t *dst,

  66.                       int width, int height,

  67.                       int lumStride, int chromStride, int dstStride);

  68. void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc,

  69.                       const uint8_t *vsrc, uint8_t *dst,

  70.                       int width, int height,

  71.                       int lumStride, int chromStride, int dstStride);

  72. void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst,

  73.                    uint8_t *udst, uint8_t *vdst,

  74.                    int width, int height,

  75.                    int lumStride, int chromStride, int srcStride);

  76. void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst,

  77.                     uint8_t *udst, uint8_t *vdst,

  78.                     int width, int height,

  79.                     int lumStride, int chromStride, int srcStride);

  80. void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,

  81.                  int srcStride, int dstStride);

  82. void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,

  83.                         int width, int height, int src1Stride,

  84.                         int src2Stride, int dstStride);

  85. void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,

  86.                     uint8_t *dst1, uint8_t *dst2,

  87.                     int width, int height,

  88.                     int srcStride1, int srcStride2,

  89.                     int dstStride1, int dstStride2);

  90. void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2,

  91.                      const uint8_t *src3, uint8_t *dst,

  92.                      int width, int height,

  93.                      int srcStride1, int srcStride2,

  94.                      int srcStride3, int dstStride);

  95. void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,

  96.                      const uint8_t *src, int width, int height,

  97.                      int lumStride, int chromStride, int srcStride);

  98. void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,

  99.                      const uint8_t *src, int width, int height,

  100.                      int lumStride, int chromStride, int srcStride);

  101. void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,

  102.                      const uint8_t *src, int width, int height,

  103.                      int lumStride, int chromStride, int srcStride);

  104. void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,

  105.                      const uint8_t *src, int width, int height,

  106.                      int lumStride, int chromStride, int srcStride);

  107. 

  108. #define BY ((int)( 0.098 * (1 << RGB2YUV_SHIFT) + 0.5))

  109. #define BV ((int)(-0.071 * (1 << RGB2YUV_SHIFT) + 0.5))

  110. #define BU ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))

  111. #define GY ((int)( 0.504 * (1 << RGB2YUV_SHIFT) + 0.5))

  112. #define GV ((int)(-0.368 * (1 << RGB2YUV_SHIFT) + 0.5))

  113. #define GU ((int)(-0.291 * (1 << RGB2YUV_SHIFT) + 0.5))

  114. #define RY ((int)( 0.257 * (1 << RGB2YUV_SHIFT) + 0.5))

  115. #define RV ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))

  116. #define RU ((int)(-0.148 * (1 << RGB2YUV_SHIFT) + 0.5))

  117. 

  118. //plain C versions

  119. #include "rgb2rgb_template.c"

  120. 

  121. /*

  122.  * RGB15->RGB16 original by Strepto/Astral

  123.  * ported to gcc & bugfixed : A'rpi

  124.  * MMXEXT, 3DNOW optimization by Nick Kurshev

  125.  * 32-bit C version, and and&add trick by Michael Niedermayer

  126.  */

  127. 

  128. av_cold void sws_rgb2rgb_init(void)

  129. {

  130.     rgb2rgb_init_c();

  131.     if (HAVE_MMX)

  132.         rgb2rgb_init_x86();

  133. }

  134. 

  135. void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size)

  136. {

  137.     int i, num_pixels = src_size >> 2;

  138. 

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

  140. #if HAVE_BIGENDIAN

  141.         /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */

  142.         dst[3 * i + 0] = src[4 * i + 1];

  143.         dst[3 * i + 1] = src[4 * i + 2];

  144.         dst[3 * i + 2] = src[4 * i + 3];

  145. #else

  146.         dst[3 * i + 0] = src[4 * i + 2];

  147.         dst[3 * i + 1] = src[4 * i + 1];

  148.         dst[3 * i + 2] = src[4 * i + 0];

  149. #endif

  150.     }

  151. }

  152. 

  153. void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size)

  154. {

  155.     int i;

  156. 

  157.     for (i = 0; 3 * i < src_size; i++) {

  158. #if HAVE_BIGENDIAN

  159.         /* RGB24 (= R, G, B) -> BGR32 (= A, R, G, B) */

  160.         dst[4 * i + 0] = 255;

  161.         dst[4 * i + 1] = src[3 * i + 0];

  162.         dst[4 * i + 2] = src[3 * i + 1];

  163.         dst[4 * i + 3] = src[3 * i + 2];

  164. #else

  165.         dst[4 * i + 0] = src[3 * i + 2];

  166.         dst[4 * i + 1] = src[3 * i + 1];

  167.         dst[4 * i + 2] = src[3 * i + 0];

  168.         dst[4 * i + 3] = 255;

  169. #endif

  170.     }

  171. }

  172. 

  173. void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)

  174. {

  175.     uint8_t *d          = dst;

  176.     const uint16_t *s   = (const uint16_t *)src;

  177.     const uint16_t *end = s + src_size / 2;

  178. 

  179.     while (s < end) {

  180.         register uint16_t bgr = *s++;

  181. #if HAVE_BIGENDIAN

  182.         *d++ = 255;

  183.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  184.         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);

  185.         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);

  186. #else

  187.         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);

  188.         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);

  189.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  190.         *d++ = 255;

  191. #endif

  192.     }

  193. }

  194. 

  195. void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)

  196. {

  197.     uint16_t rgb, r, g, b;

  198.     uint16_t *d         = (uint16_t *)dst;

  199.     const uint16_t *s   = (const uint16_t *)src;

  200.     const uint16_t *end = s + src_size / 2;

  201. 

  202.     while (s < end) {

  203.         rgb  = *s++;

  204.         r    = rgb & 0xF00;

  205.         g    = rgb & 0x0F0;

  206.         b    = rgb & 0x00F;

  207.         r    = (r << 3) | ((r & 0x800) >> 1);

  208.         g    = (g << 2) | ((g & 0x080) >> 2);

  209.         b    = (b << 1) | ( b          >> 3);

  210.         *d++ = r | g | b;

  211.     }

  212. }

  213. 

  214. void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)

  215. {

  216.     uint8_t *d          = dst;

  217.     const uint16_t *s   = (const uint16_t *)src;

  218.     const uint16_t *end = s + src_size / 2;

  219. 

  220.     while (s < end) {

  221.         register uint16_t bgr = *s++;

  222.         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);

  223.         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);

  224.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  225.     }

  226. }

  227. 

  228. void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size)

  229. {

  230.     int i, num_pixels = src_size >> 1;

  231. 

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

  233.         unsigned rgb         = ((const uint16_t *)src)[i];

  234.         ((uint16_t *)dst)[i] = (rgb >> 11) | (rgb & 0x7E0) | (rgb << 11);

  235.     }

  236. }

  237. 

  238. void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size)

  239. {

  240.     int i, num_pixels = src_size >> 1;

  241. 

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

  243.         unsigned rgb         = ((const uint16_t *)src)[i];

  244.         ((uint16_t *)dst)[i] = (rgb >> 11) | ((rgb & 0x7C0) >> 1) | ((rgb & 0x1F) << 10);

  245.     }

  246. }

  247. 

  248. void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size)

  249. {

  250.     uint8_t *d          = dst;

  251.     const uint16_t *s   = (const uint16_t *)src;

  252.     const uint16_t *end = s + src_size / 2;

  253. 

  254.     while (s < end) {

  255.         register uint16_t bgr = *s++;

  256. #if HAVE_BIGENDIAN

  257.         *d++ = 255;

  258.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  259.         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);

  260.         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);

  261. #else

  262.         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);

  263.         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);

  264.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  265.         *d++ = 255;

  266. #endif

  267.     }

  268. }

  269. 

  270. void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size)

  271. {

  272.     uint8_t *d          = dst;

  273.     const uint16_t *s   = (const uint16_t *)src;

  274.     const uint16_t *end = s + src_size / 2;

  275. 

  276.     while (s < end) {

  277.         register uint16_t bgr = *s++;

  278.         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);

  279.         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);

  280.         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);

  281.     }

  282. }

  283. 

  284. void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size)

  285. {

  286.     int i, num_pixels = src_size >> 1;

  287. 

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

  289.         unsigned rgb         = ((const uint16_t *)src)[i];

  290.         ((uint16_t *)dst)[i] = ((rgb & 0x7C00) >> 10) | ((rgb & 0x3E0) << 1) | (rgb << 11);

  291.     }

  292. }

  293. 

  294. void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)

  295. {

  296.     int i, num_pixels = src_size >> 1;

  297. 

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

  299.         unsigned rgb         = ((const uint16_t *)src)[i];

  300.         unsigned br          = rgb & 0x7C1F;

  301.         ((uint16_t *)dst)[i] = (br >> 10) | (rgb & 0x3E0) | (br << 10);

  302.     }

  303. }

  304. 

  305. void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)

  306. {

  307.     uint16_t *d = (uint16_t *)dst;

  308.     uint16_t *s = (uint16_t *)src;

  309.     int i, num_pixels = src_size >> 1;

  310. 

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

  312.         unsigned rgb = s[i];

  313.         d[i]         = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF;

  314.     }

  315. }

  316. 

  317. 

  318. #define DEFINE_SHUFFLE_BYTES(a, b, c, d)                                \

  319. void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src,             \

  320.                                         uint8_t *dst, int src_size)     \

  321. {                                                                       \

  322.     int i;                                                              \

  323.                                                                         \

  324.     for (i = 0; i < src_size; i += 4) {                                 \

  325.         dst[i + 0] = src[i + a];                                        \

  326.         dst[i + 1] = src[i + b];                                        \

  327.         dst[i + 2] = src[i + c];                                        \

  328.         dst[i + 3] = src[i + d];                                        \

  329.     }                                                                   \

  330. }

  331. 

  332. DEFINE_SHUFFLE_BYTES(0, 3, 2, 1)

  333. DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)

  334. DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)

  335. DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)

  336. 

  337. #define DEFINE_RGB48TOBGR48(need_bswap, swap)                           \

  338. void rgb48tobgr48_ ## need_bswap(const uint8_t *src,                    \

  339.                                  uint8_t *dst, int src_size)            \

  340. {                                                                       \

  341.     uint16_t *d = (uint16_t *)dst;                                      \

  342.     uint16_t *s = (uint16_t *)src;                                      \

  343.     int i, num_pixels = src_size >> 1;                                  \

  344.                                                                         \

  345.     for (i = 0; i < num_pixels; i += 3) {                               \

  346.         d[i    ] = swap ? av_bswap16(s[i + 2]) : s[i + 2];              \

  347.         d[i + 1] = swap ? av_bswap16(s[i + 1]) : s[i + 1];              \

  348.         d[i + 2] = swap ? av_bswap16(s[i    ]) : s[i    ];              \

  349.     }                                                                   \

  350. }

  351. 

  352. DEFINE_RGB48TOBGR48(nobswap, 0)

  353. DEFINE_RGB48TOBGR48(bswap, 1)

  354. 

  355. #define DEFINE_RGB64TOBGR48(need_bswap, swap)                           \

  356. void rgb64tobgr48_ ## need_bswap(const uint8_t *src,                    \

  357.                                  uint8_t *dst, int src_size)            \

  358. {                                                                       \

  359.     uint16_t *d = (uint16_t *)dst;                                      \

  360.     uint16_t *s = (uint16_t *)src;                                      \

  361.     int i, num_pixels = src_size >> 3;                                  \

  362.                                                                         \

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

  364.         d[3 * i    ] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2];  \

  365.         d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1];  \

  366.         d[3 * i + 2] = swap ? av_bswap16(s[4 * i    ]) : s[4 * i    ];  \

  367.     }                                                                   \

  368. }

  369. 

  370. DEFINE_RGB64TOBGR48(nobswap, 0)

  371. DEFINE_RGB64TOBGR48(bswap, 1)

  372. 

  373. #define DEFINE_RGB64TO48(need_bswap, swap)                              \

  374. void rgb64to48_ ## need_bswap(const uint8_t *src,                       \

  375.                               uint8_t *dst, int src_size)               \

  376. {                                                                       \

  377.     uint16_t *d = (uint16_t *)dst;                                      \

  378.     uint16_t *s = (uint16_t *)src;                                      \

  379.     int i, num_pixels = src_size >> 3;                                  \

  380.                                                                         \

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

  382.         d[3 * i    ] = swap ? av_bswap16(s[4 * i    ]) : s[4 * i    ];  \

  383.         d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1];  \

  384.         d[3 * i + 2] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2];  \

  385.     }                                                                   \

  386. }

  387. 

  388. DEFINE_RGB64TO48(nobswap, 0)

  389. DEFINE_RGB64TO48(bswap, 1)