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FFmpeg/libswscale/rgb2rgb.c

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  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_0321)(const uint8_t *src, uint8_t *dst, int src_size);

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

  56. void (*shuffle_bytes_1230)(const uint8_t *src, uint8_t *dst, int src_size);

  57. void (*shuffle_bytes_3012)(const uint8_t *src, uint8_t *dst, int src_size);

  58. void (*shuffle_bytes_3210)(const uint8_t *src, uint8_t *dst, int src_size);

  59. 

  60. 

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

  62.                    const uint8_t *vsrc, uint8_t *dst,

  63.                    int width, int height,

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

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

  66.                    const uint8_t *vsrc, uint8_t *dst,

  67.                    int width, int height,

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

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

  70.                       const uint8_t *vsrc, uint8_t *dst,

  71.                       int width, int height,

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

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

  74.                       const uint8_t *vsrc, uint8_t *dst,

  75.                       int width, int height,

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

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

  78.                    uint8_t *udst, uint8_t *vdst,

  79.                    int width, int height,

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

  81. void (*ff_rgb24toyv12)(const uint8_t *src, uint8_t *ydst,

  82.                        uint8_t *udst, uint8_t *vdst,

  83.                        int width, int height,

  84.                        int lumStride, int chromStride, int srcStride,

  85.                        int32_t *rgb2yuv);

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

  87.                  int srcStride, int dstStride);

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

  89.                         int width, int height, int src1Stride,

  90.                         int src2Stride, int dstStride);

  91. void (*deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst2,

  92.                           int width, int height, int srcStride,

  93.                           int dst1Stride, int dst2Stride);

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

  95.                     uint8_t *dst1, uint8_t *dst2,

  96.                     int width, int height,

  97.                     int srcStride1, int srcStride2,

  98.                     int dstStride1, int dstStride2);

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

  100.                      const uint8_t *src3, uint8_t *dst,

  101.                      int width, int height,

  102.                      int srcStride1, int srcStride2,

  103.                      int srcStride3, int dstStride);

  104. void (*uyvytoyuv420)(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. void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,

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

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

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

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

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

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

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

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

  116. 

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

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

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

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

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

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

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

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

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

  126. 

  127. //plain C versions

  128. #include "rgb2rgb_template.c"

  129. 

  130. /*

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

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

  133.  * MMXEXT, 3DNOW optimization by Nick Kurshev

  134.  * 32-bit C version, and and&add trick by Michael Niedermayer

  135.  */

  136. 

  137. av_cold void ff_sws_rgb2rgb_init(void)

  138. {

  139.     rgb2rgb_init_c();

  140.     if (ARCH_X86)

  141.         rgb2rgb_init_x86();

  142. }

  143. 

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

  145. {

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

  147. 

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

  149. #if HAVE_BIGENDIAN

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

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

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

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

  154. #else

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

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

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

  158. #endif

  159.     }

  160. }

  161. 

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

  163. {

  164.     int i;

  165. 

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

  167. #if HAVE_BIGENDIAN

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

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

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

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

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

  173. #else

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

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

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

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

  178. #endif

  179.     }

  180. }

  181. 

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

  183. {

  184.     uint8_t *d          = dst;

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

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

  187. 

  188.     while (s < end) {

  189.         register uint16_t bgr = *s++;

  190. #if HAVE_BIGENDIAN

  191.         *d++ = 255;

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

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

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

  195. #else

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

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

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

  199.         *d++ = 255;

  200. #endif

  201.     }

  202. }

  203. 

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

  205. {

  206.     uint16_t rgb, r, g, b;

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

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

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

  210. 

  211.     while (s < end) {

  212.         rgb  = *s++;

  213.         r    = rgb & 0xF00;

  214.         g    = rgb & 0x0F0;

  215.         b    = rgb & 0x00F;

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

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

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

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

  220.     }

  221. }

  222. 

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

  224. {

  225.     uint8_t *d          = dst;

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

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

  228. 

  229.     while (s < end) {

  230.         register uint16_t bgr = *s++;

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

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

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

  234.     }

  235. }

  236. 

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

  238. {

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

  240. 

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

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

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

  244.     }

  245. }

  246. 

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

  248. {

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

  250. 

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

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

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

  254.     }

  255. }

  256. 

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

  258. {

  259.     uint8_t *d          = dst;

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

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

  262. 

  263.     while (s < end) {

  264.         register uint16_t bgr = *s++;

  265. #if HAVE_BIGENDIAN

  266.         *d++ = 255;

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

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

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

  270. #else

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

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

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

  274.         *d++ = 255;

  275. #endif

  276.     }

  277. }

  278. 

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

  280. {

  281.     uint8_t *d          = dst;

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

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

  284. 

  285.     while (s < end) {

  286.         register uint16_t bgr = *s++;

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

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

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

  290.     }

  291. }

  292. 

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

  294. {

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

  296. 

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

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

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

  300.     }

  301. }

  302. 

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

  304. {

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

  306. 

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

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

  309.         unsigned br          = rgb & 0x7C1F;

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

  311.     }

  312. }

  313. 

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

  315. {

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

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

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

  319. 

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

  321.         unsigned rgb = s[i];

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

  323.     }

  324. }

  325. 

  326. #define DEFINE_RGB48TOBGR48(need_bswap, swap)                           \

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

  328.                                  uint8_t *dst, int src_size)            \

  329. {                                                                       \

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

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

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

  333.                                                                         \

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

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

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

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

  338.     }                                                                   \

  339. }

  340. 

  341. DEFINE_RGB48TOBGR48(nobswap, 0)

  342. DEFINE_RGB48TOBGR48(bswap, 1)

  343. 

  344. #define DEFINE_RGB64TOBGR48(need_bswap, swap)                           \

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

  346.                                  uint8_t *dst, int src_size)            \

  347. {                                                                       \

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

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

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

  351.                                                                         \

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

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

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

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

  356.     }                                                                   \

  357. }

  358. 

  359. DEFINE_RGB64TOBGR48(nobswap, 0)

  360. DEFINE_RGB64TOBGR48(bswap, 1)

  361. 

  362. #define DEFINE_RGB64TO48(need_bswap, swap)                              \

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

  364.                               uint8_t *dst, int src_size)               \

  365. {                                                                       \

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

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

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

  369.                                                                         \

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

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

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

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

  374.     }                                                                   \

  375. }

  376. 

  377. DEFINE_RGB64TO48(nobswap, 0)

  378. DEFINE_RGB64TO48(bswap, 1)

  379. 

  380. #define DEFINE_RGB48TOBGR64(need_bswap, swap)                           \

  381. void rgb48tobgr64_ ## need_bswap(const uint8_t *src,                    \

  382.                                  uint8_t *dst, int src_size)            \

  383. {                                                                       \

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

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

  386.     int i, num_pixels = src_size / 6;                                   \

  387.                                                                         \

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

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

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

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

  392.         d[4 * i + 3] = 0xFFFF;                                          \

  393.     }                                                                   \

  394. }

  395. 

  396. DEFINE_RGB48TOBGR64(nobswap, 0)

  397. DEFINE_RGB48TOBGR64(bswap, 1)

  398. 

  399. #define DEFINE_RGB48TO64(need_bswap, swap)                              \

  400. void rgb48to64_ ## need_bswap(const uint8_t *src,                       \

  401.                               uint8_t *dst, int src_size)               \

  402. {                                                                       \

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

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

  405.     int i, num_pixels = src_size / 6;                                   \

  406.                                                                         \

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

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

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

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

  411.         d[4 * i + 3] = 0xFFFF;                                          \

  412.     }                                                                   \

  413. }

  414. 

  415. DEFINE_RGB48TO64(nobswap, 0)

  416. DEFINE_RGB48TO64(bswap, 1)