LCOV - code coverage report
Current view: top level - src/libswscale - rgb2rgb.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 38 116 32.8 %
Date: 2017-01-19 23:52:33 Functions: 5 22 22.7 %

          Line data    Source code
       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             : 
      57             : void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc,
      58             :                    const uint8_t *vsrc, uint8_t *dst,
      59             :                    int width, int height,
      60             :                    int lumStride, int chromStride, int dstStride);
      61             : void (*yv12touyvy)(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 (*yuv422ptoyuy2)(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 (*yuv422ptouyvy)(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 (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst,
      74             :                    uint8_t *udst, uint8_t *vdst,
      75             :                    int width, int height,
      76             :                    int lumStride, int chromStride, int srcStride);
      77             : void (*ff_rgb24toyv12)(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             :                        int32_t *rgb2yuv);
      82             : void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,
      83             :                  int srcStride, int dstStride);
      84             : void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
      85             :                         int width, int height, int src1Stride,
      86             :                         int src2Stride, int dstStride);
      87             : void (*deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst2,
      88             :                           int width, int height, int srcStride,
      89             :                           int dst1Stride, int dst2Stride);
      90             : void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
      91             :                     uint8_t *dst1, uint8_t *dst2,
      92             :                     int width, int height,
      93             :                     int srcStride1, int srcStride2,
      94             :                     int dstStride1, int dstStride2);
      95             : void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2,
      96             :                      const uint8_t *src3, uint8_t *dst,
      97             :                      int width, int height,
      98             :                      int srcStride1, int srcStride2,
      99             :                      int srcStride3, int dstStride);
     100             : void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
     101             :                      const uint8_t *src, int width, int height,
     102             :                      int lumStride, int chromStride, int srcStride);
     103             : void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
     104             :                      const uint8_t *src, int width, int height,
     105             :                      int lumStride, int chromStride, int srcStride);
     106             : void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
     107             :                      const uint8_t *src, int width, int height,
     108             :                      int lumStride, int chromStride, int srcStride);
     109             : void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
     110             :                      const uint8_t *src, int width, int height,
     111             :                      int lumStride, int chromStride, int srcStride);
     112             : 
     113             : #define BY ((int)( 0.098 * (1 << RGB2YUV_SHIFT) + 0.5))
     114             : #define BV ((int)(-0.071 * (1 << RGB2YUV_SHIFT) + 0.5))
     115             : #define BU ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
     116             : #define GY ((int)( 0.504 * (1 << RGB2YUV_SHIFT) + 0.5))
     117             : #define GV ((int)(-0.368 * (1 << RGB2YUV_SHIFT) + 0.5))
     118             : #define GU ((int)(-0.291 * (1 << RGB2YUV_SHIFT) + 0.5))
     119             : #define RY ((int)( 0.257 * (1 << RGB2YUV_SHIFT) + 0.5))
     120             : #define RV ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
     121             : #define RU ((int)(-0.148 * (1 << RGB2YUV_SHIFT) + 0.5))
     122             : 
     123             : //plain C versions
     124             : #include "rgb2rgb_template.c"
     125             : 
     126             : /*
     127             :  * RGB15->RGB16 original by Strepto/Astral
     128             :  * ported to gcc & bugfixed : A'rpi
     129             :  * MMXEXT, 3DNOW optimization by Nick Kurshev
     130             :  * 32-bit C version, and and&add trick by Michael Niedermayer
     131             :  */
     132             : 
     133        2478 : av_cold void ff_sws_rgb2rgb_init(void)
     134             : {
     135        2478 :     rgb2rgb_init_c();
     136             :     if (ARCH_X86)
     137        2478 :         rgb2rgb_init_x86();
     138        2478 : }
     139             : 
     140      124870 : void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size)
     141             : {
     142      124870 :     int i, num_pixels = src_size >> 2;
     143             : 
     144   223365754 :     for (i = 0; i < num_pixels; i++) {
     145             : #if HAVE_BIGENDIAN
     146             :         /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
     147             :         dst[3 * i + 0] = src[4 * i + 1];
     148             :         dst[3 * i + 1] = src[4 * i + 2];
     149             :         dst[3 * i + 2] = src[4 * i + 3];
     150             : #else
     151   223240884 :         dst[3 * i + 0] = src[4 * i + 2];
     152   223240884 :         dst[3 * i + 1] = src[4 * i + 1];
     153   223240884 :         dst[3 * i + 2] = src[4 * i + 0];
     154             : #endif
     155             :     }
     156      124870 : }
     157             : 
     158           6 : void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size)
     159             : {
     160             :     int i;
     161             : 
     162      266112 :     for (i = 0; 3 * i < src_size; i++) {
     163             : #if HAVE_BIGENDIAN
     164             :         /* RGB24 (= R, G, B) -> BGR32 (= A, R, G, B) */
     165             :         dst[4 * i + 0] = 255;
     166             :         dst[4 * i + 1] = src[3 * i + 0];
     167             :         dst[4 * i + 2] = src[3 * i + 1];
     168             :         dst[4 * i + 3] = src[3 * i + 2];
     169             : #else
     170      266106 :         dst[4 * i + 0] = src[3 * i + 2];
     171      266106 :         dst[4 * i + 1] = src[3 * i + 1];
     172      266106 :         dst[4 * i + 2] = src[3 * i + 0];
     173      266106 :         dst[4 * i + 3] = 255;
     174             : #endif
     175             :     }
     176           6 : }
     177             : 
     178           0 : void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
     179             : {
     180           0 :     uint8_t *d          = dst;
     181           0 :     const uint16_t *s   = (const uint16_t *)src;
     182           0 :     const uint16_t *end = s + src_size / 2;
     183             : 
     184           0 :     while (s < end) {
     185           0 :         register uint16_t bgr = *s++;
     186             : #if HAVE_BIGENDIAN
     187             :         *d++ = 255;
     188             :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     189             :         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
     190             :         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
     191             : #else
     192           0 :         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
     193           0 :         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
     194           0 :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     195           0 :         *d++ = 255;
     196             : #endif
     197             :     }
     198           0 : }
     199             : 
     200           0 : void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
     201             : {
     202             :     uint16_t rgb, r, g, b;
     203           0 :     uint16_t *d         = (uint16_t *)dst;
     204           0 :     const uint16_t *s   = (const uint16_t *)src;
     205           0 :     const uint16_t *end = s + src_size / 2;
     206             : 
     207           0 :     while (s < end) {
     208           0 :         rgb  = *s++;
     209           0 :         r    = rgb & 0xF00;
     210           0 :         g    = rgb & 0x0F0;
     211           0 :         b    = rgb & 0x00F;
     212           0 :         r    = (r << 3) | ((r & 0x800) >> 1);
     213           0 :         g    = (g << 2) | ((g & 0x080) >> 2);
     214           0 :         b    = (b << 1) | ( b          >> 3);
     215           0 :         *d++ = r | g | b;
     216             :     }
     217           0 : }
     218             : 
     219         190 : void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
     220             : {
     221         190 :     uint8_t *d          = dst;
     222         190 :     const uint16_t *s   = (const uint16_t *)src;
     223         190 :     const uint16_t *end = s + src_size / 2;
     224             : 
     225    19456380 :     while (s < end) {
     226    19456000 :         register uint16_t bgr = *s++;
     227    19456000 :         *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
     228    19456000 :         *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
     229    19456000 :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     230             :     }
     231         190 : }
     232             : 
     233           0 : void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
     234             : {
     235           0 :     int i, num_pixels = src_size >> 1;
     236             : 
     237           0 :     for (i = 0; i < num_pixels; i++) {
     238           0 :         unsigned rgb         = ((const uint16_t *)src)[i];
     239           0 :         ((uint16_t *)dst)[i] = (rgb >> 11) | (rgb & 0x7E0) | (rgb << 11);
     240             :     }
     241           0 : }
     242             : 
     243           0 : void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
     244             : {
     245           0 :     int i, num_pixels = src_size >> 1;
     246             : 
     247           0 :     for (i = 0; i < num_pixels; i++) {
     248           0 :         unsigned rgb         = ((const uint16_t *)src)[i];
     249           0 :         ((uint16_t *)dst)[i] = (rgb >> 11) | ((rgb & 0x7C0) >> 1) | ((rgb & 0x1F) << 10);
     250             :     }
     251           0 : }
     252             : 
     253           0 : void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
     254             : {
     255           0 :     uint8_t *d          = dst;
     256           0 :     const uint16_t *s   = (const uint16_t *)src;
     257           0 :     const uint16_t *end = s + src_size / 2;
     258             : 
     259           0 :     while (s < end) {
     260           0 :         register uint16_t bgr = *s++;
     261             : #if HAVE_BIGENDIAN
     262             :         *d++ = 255;
     263             :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     264             :         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
     265             :         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
     266             : #else
     267           0 :         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
     268           0 :         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
     269           0 :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     270           0 :         *d++ = 255;
     271             : #endif
     272             :     }
     273           0 : }
     274             : 
     275      167870 : void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size)
     276             : {
     277      167870 :     uint8_t *d          = dst;
     278      167870 :     const uint16_t *s   = (const uint16_t *)src;
     279      167870 :     const uint16_t *end = s + src_size / 2;
     280             : 
     281   152184980 :     while (s < end) {
     282   151849240 :         register uint16_t bgr = *s++;
     283   151849240 :         *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
     284   151849240 :         *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
     285   151849240 :         *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
     286             :     }
     287      167870 : }
     288             : 
     289           0 : void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
     290             : {
     291           0 :     int i, num_pixels = src_size >> 1;
     292             : 
     293           0 :     for (i = 0; i < num_pixels; i++) {
     294           0 :         unsigned rgb         = ((const uint16_t *)src)[i];
     295           0 :         ((uint16_t *)dst)[i] = ((rgb & 0x7C00) >> 10) | ((rgb & 0x3E0) << 1) | (rgb << 11);
     296             :     }
     297           0 : }
     298             : 
     299           0 : void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
     300             : {
     301           0 :     int i, num_pixels = src_size >> 1;
     302             : 
     303           0 :     for (i = 0; i < num_pixels; i++) {
     304           0 :         unsigned rgb         = ((const uint16_t *)src)[i];
     305           0 :         unsigned br          = rgb & 0x7C1F;
     306           0 :         ((uint16_t *)dst)[i] = (br >> 10) | (rgb & 0x3E0) | (br << 10);
     307             :     }
     308           0 : }
     309             : 
     310           0 : void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
     311             : {
     312           0 :     uint16_t *d = (uint16_t *)dst;
     313           0 :     uint16_t *s = (uint16_t *)src;
     314           0 :     int i, num_pixels = src_size >> 1;
     315             : 
     316           0 :     for (i = 0; i < num_pixels; i++) {
     317           0 :         unsigned rgb = s[i];
     318           0 :         d[i]         = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF;
     319             :     }
     320           0 : }
     321             : 
     322             : 
     323             : #define DEFINE_SHUFFLE_BYTES(a, b, c, d)                                \
     324             : void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src,             \
     325             :                                         uint8_t *dst, int src_size)     \
     326             : {                                                                       \
     327             :     int i;                                                              \
     328             :                                                                         \
     329             :     for (i = 0; i < src_size; i += 4) {                                 \
     330             :         dst[i + 0] = src[i + a];                                        \
     331             :         dst[i + 1] = src[i + b];                                        \
     332             :         dst[i + 2] = src[i + c];                                        \
     333             :         dst[i + 3] = src[i + d];                                        \
     334             :     }                                                                   \
     335             : }
     336             : 
     337           0 : DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)
     338           0 : DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)
     339           0 : DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)
     340             : 
     341             : #define DEFINE_RGB48TOBGR48(need_bswap, swap)                           \
     342             : void rgb48tobgr48_ ## need_bswap(const uint8_t *src,                    \
     343             :                                  uint8_t *dst, int src_size)            \
     344             : {                                                                       \
     345             :     uint16_t *d = (uint16_t *)dst;                                      \
     346             :     uint16_t *s = (uint16_t *)src;                                      \
     347             :     int i, num_pixels = src_size >> 1;                                  \
     348             :                                                                         \
     349             :     for (i = 0; i < num_pixels; i += 3) {                               \
     350             :         d[i    ] = swap ? av_bswap16(s[i + 2]) : s[i + 2];              \
     351             :         d[i + 1] = swap ? av_bswap16(s[i + 1]) : s[i + 1];              \
     352             :         d[i + 2] = swap ? av_bswap16(s[i    ]) : s[i    ];              \
     353             :     }                                                                   \
     354             : }
     355             : 
     356           0 : DEFINE_RGB48TOBGR48(nobswap, 0)
     357           0 : DEFINE_RGB48TOBGR48(bswap, 1)
     358             : 
     359             : #define DEFINE_RGB64TOBGR48(need_bswap, swap)                           \
     360             : void rgb64tobgr48_ ## need_bswap(const uint8_t *src,                    \
     361             :                                  uint8_t *dst, int src_size)            \
     362             : {                                                                       \
     363             :     uint16_t *d = (uint16_t *)dst;                                      \
     364             :     uint16_t *s = (uint16_t *)src;                                      \
     365             :     int i, num_pixels = src_size >> 3;                                  \
     366             :                                                                         \
     367             :     for (i = 0; i < num_pixels; i++) {                                  \
     368             :         d[3 * i    ] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2];  \
     369             :         d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1];  \
     370             :         d[3 * i + 2] = swap ? av_bswap16(s[4 * i    ]) : s[4 * i    ];  \
     371             :     }                                                                   \
     372             : }
     373             : 
     374           0 : DEFINE_RGB64TOBGR48(nobswap, 0)
     375           0 : DEFINE_RGB64TOBGR48(bswap, 1)
     376             : 
     377             : #define DEFINE_RGB64TO48(need_bswap, swap)                              \
     378             : void rgb64to48_ ## need_bswap(const uint8_t *src,                       \
     379             :                               uint8_t *dst, int src_size)               \
     380             : {                                                                       \
     381             :     uint16_t *d = (uint16_t *)dst;                                      \
     382             :     uint16_t *s = (uint16_t *)src;                                      \
     383             :     int i, num_pixels = src_size >> 3;                                  \
     384             :                                                                         \
     385             :     for (i = 0; i < num_pixels; i++) {                                  \
     386             :         d[3 * i    ] = swap ? av_bswap16(s[4 * i    ]) : s[4 * i    ];  \
     387             :         d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1];  \
     388             :         d[3 * i + 2] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2];  \
     389             :     }                                                                   \
     390             : }
     391             : 
     392           0 : DEFINE_RGB64TO48(nobswap, 0)
     393           0 : DEFINE_RGB64TO48(bswap, 1)

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