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      1 /*
      2  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS. All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include "libyuv/convert_argb.h"
     12 
     13 #include "libyuv/cpu_id.h"
     14 #ifdef HAVE_JPEG
     15 #include "libyuv/mjpeg_decoder.h"
     16 #endif
     17 #include "libyuv/planar_functions.h"  // For CopyPlane and ARGBShuffle.
     18 #include "libyuv/rotate_argb.h"
     19 #include "libyuv/row.h"
     20 #include "libyuv/video_common.h"
     21 
     22 #ifdef __cplusplus
     23 namespace libyuv {
     24 extern "C" {
     25 #endif
     26 
     27 // Copy ARGB with optional flipping
     28 LIBYUV_API
     29 int ARGBCopy(const uint8* src_argb, int src_stride_argb,
     30              uint8* dst_argb, int dst_stride_argb,
     31              int width, int height) {
     32   if (!src_argb || !dst_argb ||
     33       width <= 0 || height == 0) {
     34     return -1;
     35   }
     36   // Negative height means invert the image.
     37   if (height < 0) {
     38     height = -height;
     39     src_argb = src_argb + (height - 1) * src_stride_argb;
     40     src_stride_argb = -src_stride_argb;
     41   }
     42 
     43   CopyPlane(src_argb, src_stride_argb, dst_argb, dst_stride_argb,
     44             width * 4, height);
     45   return 0;
     46 }
     47 
     48 // Convert I422 to ARGB with matrix
     49 static int I420ToARGBMatrix(const uint8* src_y, int src_stride_y,
     50                             const uint8* src_u, int src_stride_u,
     51                             const uint8* src_v, int src_stride_v,
     52                             uint8* dst_argb, int dst_stride_argb,
     53                             const struct YuvConstants* yuvconstants,
     54                             int width, int height) {
     55   int y;
     56   void (*I422ToARGBRow)(const uint8* y_buf,
     57                         const uint8* u_buf,
     58                         const uint8* v_buf,
     59                         uint8* rgb_buf,
     60                         const struct YuvConstants* yuvconstants,
     61                         int width) = I422ToARGBRow_C;
     62   if (!src_y || !src_u || !src_v || !dst_argb ||
     63       width <= 0 || height == 0) {
     64     return -1;
     65   }
     66   // Negative height means invert the image.
     67   if (height < 0) {
     68     height = -height;
     69     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
     70     dst_stride_argb = -dst_stride_argb;
     71   }
     72 #if defined(HAS_I422TOARGBROW_SSSE3)
     73   if (TestCpuFlag(kCpuHasSSSE3)) {
     74     I422ToARGBRow = I422ToARGBRow_Any_SSSE3;
     75     if (IS_ALIGNED(width, 8)) {
     76       I422ToARGBRow = I422ToARGBRow_SSSE3;
     77     }
     78   }
     79 #endif
     80 #if defined(HAS_I422TOARGBROW_AVX2)
     81   if (TestCpuFlag(kCpuHasAVX2)) {
     82     I422ToARGBRow = I422ToARGBRow_Any_AVX2;
     83     if (IS_ALIGNED(width, 16)) {
     84       I422ToARGBRow = I422ToARGBRow_AVX2;
     85     }
     86   }
     87 #endif
     88 #if defined(HAS_I422TOARGBROW_NEON)
     89   if (TestCpuFlag(kCpuHasNEON)) {
     90     I422ToARGBRow = I422ToARGBRow_Any_NEON;
     91     if (IS_ALIGNED(width, 8)) {
     92       I422ToARGBRow = I422ToARGBRow_NEON;
     93     }
     94   }
     95 #endif
     96 #if defined(HAS_I422TOARGBROW_DSPR2)
     97   if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
     98       IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
     99       IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
    100       IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
    101       IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
    102     I422ToARGBRow = I422ToARGBRow_DSPR2;
    103   }
    104 #endif
    105 
    106   for (y = 0; y < height; ++y) {
    107     I422ToARGBRow(src_y, src_u, src_v, dst_argb, yuvconstants, width);
    108     dst_argb += dst_stride_argb;
    109     src_y += src_stride_y;
    110     if (y & 1) {
    111       src_u += src_stride_u;
    112       src_v += src_stride_v;
    113     }
    114   }
    115   return 0;
    116 }
    117 
    118 // Convert I420 to ARGB.
    119 LIBYUV_API
    120 int I420ToARGB(const uint8* src_y, int src_stride_y,
    121                const uint8* src_u, int src_stride_u,
    122                const uint8* src_v, int src_stride_v,
    123                uint8* dst_argb, int dst_stride_argb,
    124                int width, int height) {
    125   return I420ToARGBMatrix(src_y, src_stride_y,
    126                           src_u, src_stride_u,
    127                           src_v, src_stride_v,
    128                           dst_argb, dst_stride_argb,
    129                           &kYuvI601Constants,
    130                           width, height);
    131 }
    132 
    133 // Convert I420 to ABGR.
    134 LIBYUV_API
    135 int I420ToABGR(const uint8* src_y, int src_stride_y,
    136                const uint8* src_u, int src_stride_u,
    137                const uint8* src_v, int src_stride_v,
    138                uint8* dst_abgr, int dst_stride_abgr,
    139                int width, int height) {
    140   return I420ToARGBMatrix(src_y, src_stride_y,
    141                           src_v, src_stride_v,  // Swap U and V
    142                           src_u, src_stride_u,
    143                           dst_abgr, dst_stride_abgr,
    144                           &kYvuI601Constants,  // Use Yvu matrix
    145                           width, height);
    146 }
    147 
    148 // Convert J420 to ARGB.
    149 LIBYUV_API
    150 int J420ToARGB(const uint8* src_y, int src_stride_y,
    151                const uint8* src_u, int src_stride_u,
    152                const uint8* src_v, int src_stride_v,
    153                uint8* dst_argb, int dst_stride_argb,
    154                int width, int height) {
    155   return I420ToARGBMatrix(src_y, src_stride_y,
    156                           src_u, src_stride_u,
    157                           src_v, src_stride_v,
    158                           dst_argb, dst_stride_argb,
    159                           &kYuvJPEGConstants,
    160                           width, height);
    161 }
    162 
    163 // Convert J420 to ABGR.
    164 LIBYUV_API
    165 int J420ToABGR(const uint8* src_y, int src_stride_y,
    166                const uint8* src_u, int src_stride_u,
    167                const uint8* src_v, int src_stride_v,
    168                uint8* dst_abgr, int dst_stride_abgr,
    169                int width, int height) {
    170   return I420ToARGBMatrix(src_y, src_stride_y,
    171                           src_v, src_stride_v,  // Swap U and V
    172                           src_u, src_stride_u,
    173                           dst_abgr, dst_stride_abgr,
    174                           &kYvuJPEGConstants,  // Use Yvu matrix
    175                           width, height);
    176 }
    177 
    178 // Convert H420 to ARGB.
    179 LIBYUV_API
    180 int H420ToARGB(const uint8* src_y, int src_stride_y,
    181                const uint8* src_u, int src_stride_u,
    182                const uint8* src_v, int src_stride_v,
    183                uint8* dst_argb, int dst_stride_argb,
    184                int width, int height) {
    185   return I420ToARGBMatrix(src_y, src_stride_y,
    186                           src_u, src_stride_u,
    187                           src_v, src_stride_v,
    188                           dst_argb, dst_stride_argb,
    189                           &kYuvH709Constants,
    190                           width, height);
    191 }
    192 
    193 // Convert H420 to ABGR.
    194 LIBYUV_API
    195 int H420ToABGR(const uint8* src_y, int src_stride_y,
    196                const uint8* src_u, int src_stride_u,
    197                const uint8* src_v, int src_stride_v,
    198                uint8* dst_abgr, int dst_stride_abgr,
    199                int width, int height) {
    200   return I420ToARGBMatrix(src_y, src_stride_y,
    201                           src_v, src_stride_v,  // Swap U and V
    202                           src_u, src_stride_u,
    203                           dst_abgr, dst_stride_abgr,
    204                           &kYvuH709Constants,  // Use Yvu matrix
    205                           width, height);
    206 }
    207 
    208 // Convert I422 to ARGB with matrix
    209 static int I422ToARGBMatrix(const uint8* src_y, int src_stride_y,
    210                             const uint8* src_u, int src_stride_u,
    211                             const uint8* src_v, int src_stride_v,
    212                             uint8* dst_argb, int dst_stride_argb,
    213                             const struct YuvConstants* yuvconstants,
    214                             int width, int height) {
    215   int y;
    216   void (*I422ToARGBRow)(const uint8* y_buf,
    217                         const uint8* u_buf,
    218                         const uint8* v_buf,
    219                         uint8* rgb_buf,
    220                         const struct YuvConstants* yuvconstants,
    221                         int width) = I422ToARGBRow_C;
    222   if (!src_y || !src_u || !src_v ||
    223       !dst_argb ||
    224       width <= 0 || height == 0) {
    225     return -1;
    226   }
    227   // Negative height means invert the image.
    228   if (height < 0) {
    229     height = -height;
    230     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
    231     dst_stride_argb = -dst_stride_argb;
    232   }
    233   // Coalesce rows.
    234   if (src_stride_y == width &&
    235       src_stride_u * 2 == width &&
    236       src_stride_v * 2 == width &&
    237       dst_stride_argb == width * 4) {
    238     width *= height;
    239     height = 1;
    240     src_stride_y = src_stride_u = src_stride_v = dst_stride_argb = 0;
    241   }
    242 #if defined(HAS_I422TOARGBROW_SSSE3)
    243   if (TestCpuFlag(kCpuHasSSSE3)) {
    244     I422ToARGBRow = I422ToARGBRow_Any_SSSE3;
    245     if (IS_ALIGNED(width, 8)) {
    246       I422ToARGBRow = I422ToARGBRow_SSSE3;
    247     }
    248   }
    249 #endif
    250 #if defined(HAS_I422TOARGBROW_AVX2)
    251   if (TestCpuFlag(kCpuHasAVX2)) {
    252     I422ToARGBRow = I422ToARGBRow_Any_AVX2;
    253     if (IS_ALIGNED(width, 16)) {
    254       I422ToARGBRow = I422ToARGBRow_AVX2;
    255     }
    256   }
    257 #endif
    258 #if defined(HAS_I422TOARGBROW_NEON)
    259   if (TestCpuFlag(kCpuHasNEON)) {
    260     I422ToARGBRow = I422ToARGBRow_Any_NEON;
    261     if (IS_ALIGNED(width, 8)) {
    262       I422ToARGBRow = I422ToARGBRow_NEON;
    263     }
    264   }
    265 #endif
    266 #if defined(HAS_I422TOARGBROW_DSPR2)
    267   if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
    268       IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
    269       IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
    270       IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
    271       IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
    272     I422ToARGBRow = I422ToARGBRow_DSPR2;
    273   }
    274 #endif
    275 
    276   for (y = 0; y < height; ++y) {
    277     I422ToARGBRow(src_y, src_u, src_v, dst_argb, yuvconstants, width);
    278     dst_argb += dst_stride_argb;
    279     src_y += src_stride_y;
    280     src_u += src_stride_u;
    281     src_v += src_stride_v;
    282   }
    283   return 0;
    284 }
    285 
    286 // Convert I422 to ARGB.
    287 LIBYUV_API
    288 int I422ToARGB(const uint8* src_y, int src_stride_y,
    289                const uint8* src_u, int src_stride_u,
    290                const uint8* src_v, int src_stride_v,
    291                uint8* dst_argb, int dst_stride_argb,
    292                int width, int height) {
    293   return I422ToARGBMatrix(src_y, src_stride_y,
    294                           src_u, src_stride_u,
    295                           src_v, src_stride_v,
    296                           dst_argb, dst_stride_argb,
    297                           &kYuvI601Constants,
    298                           width, height);
    299 }
    300 
    301 // Convert I422 to ABGR.
    302 LIBYUV_API
    303 int I422ToABGR(const uint8* src_y, int src_stride_y,
    304                const uint8* src_u, int src_stride_u,
    305                const uint8* src_v, int src_stride_v,
    306                uint8* dst_abgr, int dst_stride_abgr,
    307                int width, int height) {
    308   return I422ToARGBMatrix(src_y, src_stride_y,
    309                           src_v, src_stride_v,  // Swap U and V
    310                           src_u, src_stride_u,
    311                           dst_abgr, dst_stride_abgr,
    312                           &kYvuI601Constants,  // Use Yvu matrix
    313                           width, height);
    314 }
    315 
    316 // Convert J422 to ARGB.
    317 LIBYUV_API
    318 int J422ToARGB(const uint8* src_y, int src_stride_y,
    319                const uint8* src_u, int src_stride_u,
    320                const uint8* src_v, int src_stride_v,
    321                uint8* dst_argb, int dst_stride_argb,
    322                int width, int height) {
    323   return I422ToARGBMatrix(src_y, src_stride_y,
    324                           src_u, src_stride_u,
    325                           src_v, src_stride_v,
    326                           dst_argb, dst_stride_argb,
    327                           &kYuvJPEGConstants,
    328                           width, height);
    329 }
    330 
    331 // Convert J422 to ABGR.
    332 LIBYUV_API
    333 int J422ToABGR(const uint8* src_y, int src_stride_y,
    334                const uint8* src_u, int src_stride_u,
    335                const uint8* src_v, int src_stride_v,
    336                uint8* dst_abgr, int dst_stride_abgr,
    337                int width, int height) {
    338   return I422ToARGBMatrix(src_y, src_stride_y,
    339                           src_v, src_stride_v,  // Swap U and V
    340                           src_u, src_stride_u,
    341                           dst_abgr, dst_stride_abgr,
    342                           &kYvuJPEGConstants,  // Use Yvu matrix
    343                           width, height);
    344 }
    345 
    346 // Convert H422 to ARGB.
    347 LIBYUV_API
    348 int H422ToARGB(const uint8* src_y, int src_stride_y,
    349                const uint8* src_u, int src_stride_u,
    350                const uint8* src_v, int src_stride_v,
    351                uint8* dst_argb, int dst_stride_argb,
    352                int width, int height) {
    353   return I422ToARGBMatrix(src_y, src_stride_y,
    354                           src_u, src_stride_u,
    355                           src_v, src_stride_v,
    356                           dst_argb, dst_stride_argb,
    357                           &kYuvH709Constants,
    358                           width, height);
    359 }
    360 
    361 // Convert H422 to ABGR.
    362 LIBYUV_API
    363 int H422ToABGR(const uint8* src_y, int src_stride_y,
    364                const uint8* src_u, int src_stride_u,
    365                const uint8* src_v, int src_stride_v,
    366                uint8* dst_abgr, int dst_stride_abgr,
    367                int width, int height) {
    368   return I422ToARGBMatrix(src_y, src_stride_y,
    369                           src_v, src_stride_v,  // Swap U and V
    370                           src_u, src_stride_u,
    371                           dst_abgr, dst_stride_abgr,
    372                           &kYvuH709Constants,  // Use Yvu matrix
    373                           width, height);
    374 }
    375 
    376 // Convert I444 to ARGB with matrix
    377 static int I444ToARGBMatrix(const uint8* src_y, int src_stride_y,
    378                             const uint8* src_u, int src_stride_u,
    379                             const uint8* src_v, int src_stride_v,
    380                             uint8* dst_argb, int dst_stride_argb,
    381                             const struct YuvConstants* yuvconstants,
    382                             int width, int height) {
    383   int y;
    384   void (*I444ToARGBRow)(const uint8* y_buf,
    385                         const uint8* u_buf,
    386                         const uint8* v_buf,
    387                         uint8* rgb_buf,
    388                         const struct YuvConstants* yuvconstants,
    389                         int width) = I444ToARGBRow_C;
    390   if (!src_y || !src_u || !src_v ||
    391       !dst_argb ||
    392       width <= 0 || height == 0) {
    393     return -1;
    394   }
    395   // Negative height means invert the image.
    396   if (height < 0) {
    397     height = -height;
    398     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
    399     dst_stride_argb = -dst_stride_argb;
    400   }
    401   // Coalesce rows.
    402   if (src_stride_y == width &&
    403       src_stride_u == width &&
    404       src_stride_v == width &&
    405       dst_stride_argb == width * 4) {
    406     width *= height;
    407     height = 1;
    408     src_stride_y = src_stride_u = src_stride_v = dst_stride_argb = 0;
    409   }
    410 #if defined(HAS_I444TOARGBROW_SSSE3)
    411   if (TestCpuFlag(kCpuHasSSSE3)) {
    412     I444ToARGBRow = I444ToARGBRow_Any_SSSE3;
    413     if (IS_ALIGNED(width, 8)) {
    414       I444ToARGBRow = I444ToARGBRow_SSSE3;
    415     }
    416   }
    417 #endif
    418 #if defined(HAS_I444TOARGBROW_AVX2)
    419   if (TestCpuFlag(kCpuHasAVX2)) {
    420     I444ToARGBRow = I444ToARGBRow_Any_AVX2;
    421     if (IS_ALIGNED(width, 16)) {
    422       I444ToARGBRow = I444ToARGBRow_AVX2;
    423     }
    424   }
    425 #endif
    426 #if defined(HAS_I444TOARGBROW_NEON)
    427   if (TestCpuFlag(kCpuHasNEON)) {
    428     I444ToARGBRow = I444ToARGBRow_Any_NEON;
    429     if (IS_ALIGNED(width, 8)) {
    430       I444ToARGBRow = I444ToARGBRow_NEON;
    431     }
    432   }
    433 #endif
    434 
    435   for (y = 0; y < height; ++y) {
    436     I444ToARGBRow(src_y, src_u, src_v, dst_argb, yuvconstants, width);
    437     dst_argb += dst_stride_argb;
    438     src_y += src_stride_y;
    439     src_u += src_stride_u;
    440     src_v += src_stride_v;
    441   }
    442   return 0;
    443 }
    444 
    445 // Convert I444 to ARGB.
    446 LIBYUV_API
    447 int I444ToARGB(const uint8* src_y, int src_stride_y,
    448                const uint8* src_u, int src_stride_u,
    449                const uint8* src_v, int src_stride_v,
    450                uint8* dst_argb, int dst_stride_argb,
    451                int width, int height) {
    452   return I444ToARGBMatrix(src_y, src_stride_y,
    453                           src_u, src_stride_u,
    454                           src_v, src_stride_v,
    455                           dst_argb, dst_stride_argb,
    456                           &kYuvI601Constants,
    457                           width, height);
    458 }
    459 
    460 // Convert I444 to ABGR.
    461 LIBYUV_API
    462 int I444ToABGR(const uint8* src_y, int src_stride_y,
    463                const uint8* src_u, int src_stride_u,
    464                const uint8* src_v, int src_stride_v,
    465                uint8* dst_abgr, int dst_stride_abgr,
    466                int width, int height) {
    467   return I444ToARGBMatrix(src_y, src_stride_y,
    468                           src_v, src_stride_v,  // Swap U and V
    469                           src_u, src_stride_u,
    470                           dst_abgr, dst_stride_abgr,
    471                           &kYvuI601Constants,  // Use Yvu matrix
    472                           width, height);
    473 }
    474 
    475 // Convert J444 to ARGB.
    476 LIBYUV_API
    477 int J444ToARGB(const uint8* src_y, int src_stride_y,
    478                const uint8* src_u, int src_stride_u,
    479                const uint8* src_v, int src_stride_v,
    480                uint8* dst_argb, int dst_stride_argb,
    481                int width, int height) {
    482   return I444ToARGBMatrix(src_y, src_stride_y,
    483                           src_u, src_stride_u,
    484                           src_v, src_stride_v,
    485                           dst_argb, dst_stride_argb,
    486                           &kYuvJPEGConstants,
    487                           width, height);
    488 }
    489 
    490 // Convert I411 to ARGB.
    491 LIBYUV_API
    492 int I411ToARGB(const uint8* src_y, int src_stride_y,
    493                const uint8* src_u, int src_stride_u,
    494                const uint8* src_v, int src_stride_v,
    495                uint8* dst_argb, int dst_stride_argb,
    496                int width, int height) {
    497   int y;
    498   void (*I411ToARGBRow)(const uint8* y_buf,
    499                         const uint8* u_buf,
    500                         const uint8* v_buf,
    501                         uint8* rgb_buf,
    502                         const struct YuvConstants* yuvconstants,
    503                         int width) = I411ToARGBRow_C;
    504   if (!src_y || !src_u || !src_v ||
    505       !dst_argb ||
    506       width <= 0 || height == 0) {
    507     return -1;
    508   }
    509   // Negative height means invert the image.
    510   if (height < 0) {
    511     height = -height;
    512     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
    513     dst_stride_argb = -dst_stride_argb;
    514   }
    515   // Coalesce rows.
    516   if (src_stride_y == width &&
    517       src_stride_u * 4 == width &&
    518       src_stride_v * 4 == width &&
    519       dst_stride_argb == width * 4) {
    520     width *= height;
    521     height = 1;
    522     src_stride_y = src_stride_u = src_stride_v = dst_stride_argb = 0;
    523   }
    524 #if defined(HAS_I411TOARGBROW_SSSE3)
    525   if (TestCpuFlag(kCpuHasSSSE3)) {
    526     I411ToARGBRow = I411ToARGBRow_Any_SSSE3;
    527     if (IS_ALIGNED(width, 8)) {
    528       I411ToARGBRow = I411ToARGBRow_SSSE3;
    529     }
    530   }
    531 #endif
    532 #if defined(HAS_I411TOARGBROW_AVX2)
    533   if (TestCpuFlag(kCpuHasAVX2)) {
    534     I411ToARGBRow = I411ToARGBRow_Any_AVX2;
    535     if (IS_ALIGNED(width, 16)) {
    536       I411ToARGBRow = I411ToARGBRow_AVX2;
    537     }
    538   }
    539 #endif
    540 #if defined(HAS_I411TOARGBROW_NEON)
    541   if (TestCpuFlag(kCpuHasNEON)) {
    542     I411ToARGBRow = I411ToARGBRow_Any_NEON;
    543     if (IS_ALIGNED(width, 8)) {
    544       I411ToARGBRow = I411ToARGBRow_NEON;
    545     }
    546   }
    547 #endif
    548 
    549   for (y = 0; y < height; ++y) {
    550     I411ToARGBRow(src_y, src_u, src_v, dst_argb, &kYuvI601Constants, width);
    551     dst_argb += dst_stride_argb;
    552     src_y += src_stride_y;
    553     src_u += src_stride_u;
    554     src_v += src_stride_v;
    555   }
    556   return 0;
    557 }
    558 
    559 // Convert I420 with Alpha to preattenuated ARGB.
    560 static int I420AlphaToARGBMatrix(const uint8* src_y, int src_stride_y,
    561                                  const uint8* src_u, int src_stride_u,
    562                                  const uint8* src_v, int src_stride_v,
    563                                  const uint8* src_a, int src_stride_a,
    564                                  uint8* dst_argb, int dst_stride_argb,
    565                                  const struct YuvConstants* yuvconstants,
    566                                  int width, int height, int attenuate) {
    567   int y;
    568   void (*I422AlphaToARGBRow)(const uint8* y_buf,
    569                              const uint8* u_buf,
    570                              const uint8* v_buf,
    571                              const uint8* a_buf,
    572                              uint8* dst_argb,
    573                              const struct YuvConstants* yuvconstants,
    574                              int width) = I422AlphaToARGBRow_C;
    575   void (*ARGBAttenuateRow)(const uint8* src_argb, uint8* dst_argb,
    576                            int width) = ARGBAttenuateRow_C;
    577   if (!src_y || !src_u || !src_v || !dst_argb ||
    578       width <= 0 || height == 0) {
    579     return -1;
    580   }
    581   // Negative height means invert the image.
    582   if (height < 0) {
    583     height = -height;
    584     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
    585     dst_stride_argb = -dst_stride_argb;
    586   }
    587 #if defined(HAS_I422ALPHATOARGBROW_SSSE3)
    588   if (TestCpuFlag(kCpuHasSSSE3)) {
    589     I422AlphaToARGBRow = I422AlphaToARGBRow_Any_SSSE3;
    590     if (IS_ALIGNED(width, 8)) {
    591       I422AlphaToARGBRow = I422AlphaToARGBRow_SSSE3;
    592     }
    593   }
    594 #endif
    595 #if defined(HAS_I422ALPHATOARGBROW_AVX2)
    596   if (TestCpuFlag(kCpuHasAVX2)) {
    597     I422AlphaToARGBRow = I422AlphaToARGBRow_Any_AVX2;
    598     if (IS_ALIGNED(width, 16)) {
    599       I422AlphaToARGBRow = I422AlphaToARGBRow_AVX2;
    600     }
    601   }
    602 #endif
    603 #if defined(HAS_I422ALPHATOARGBROW_NEON)
    604   if (TestCpuFlag(kCpuHasNEON)) {
    605     I422AlphaToARGBRow = I422AlphaToARGBRow_Any_NEON;
    606     if (IS_ALIGNED(width, 8)) {
    607       I422AlphaToARGBRow = I422AlphaToARGBRow_NEON;
    608     }
    609   }
    610 #endif
    611 #if defined(HAS_I422ALPHATOARGBROW_DSPR2)
    612   if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
    613       IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
    614       IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
    615       IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
    616       IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
    617     I422AlphaToARGBRow = I422AlphaToARGBRow_DSPR2;
    618   }
    619 #endif
    620 #if defined(HAS_ARGBATTENUATEROW_SSSE3)
    621   if (TestCpuFlag(kCpuHasSSSE3)) {
    622     ARGBAttenuateRow = ARGBAttenuateRow_Any_SSSE3;
    623     if (IS_ALIGNED(width, 4)) {
    624       ARGBAttenuateRow = ARGBAttenuateRow_SSSE3;
    625     }
    626   }
    627 #endif
    628 #if defined(HAS_ARGBATTENUATEROW_AVX2)
    629   if (TestCpuFlag(kCpuHasAVX2)) {
    630     ARGBAttenuateRow = ARGBAttenuateRow_Any_AVX2;
    631     if (IS_ALIGNED(width, 8)) {
    632       ARGBAttenuateRow = ARGBAttenuateRow_AVX2;
    633     }
    634   }
    635 #endif
    636 #if defined(HAS_ARGBATTENUATEROW_NEON)
    637   if (TestCpuFlag(kCpuHasNEON)) {
    638     ARGBAttenuateRow = ARGBAttenuateRow_Any_NEON;
    639     if (IS_ALIGNED(width, 8)) {
    640       ARGBAttenuateRow = ARGBAttenuateRow_NEON;
    641     }
    642   }
    643 #endif
    644 
    645   for (y = 0; y < height; ++y) {
    646     I422AlphaToARGBRow(src_y, src_u, src_v, src_a, dst_argb, yuvconstants,
    647                        width);
    648     if (attenuate) {
    649       ARGBAttenuateRow(dst_argb, dst_argb, width);
    650     }
    651     dst_argb += dst_stride_argb;
    652     src_a += src_stride_a;
    653     src_y += src_stride_y;
    654     if (y & 1) {
    655       src_u += src_stride_u;
    656       src_v += src_stride_v;
    657     }
    658   }
    659   return 0;
    660 }
    661 
    662 // Convert I420 with Alpha to ARGB.
    663 LIBYUV_API
    664 int I420AlphaToARGB(const uint8* src_y, int src_stride_y,
    665                     const uint8* src_u, int src_stride_u,
    666                     const uint8* src_v, int src_stride_v,
    667                     const uint8* src_a, int src_stride_a,
    668                     uint8* dst_argb, int dst_stride_argb,
    669                     int width, int height, int attenuate) {
    670   return I420AlphaToARGBMatrix(src_y, src_stride_y,
    671                                src_u, src_stride_u,
    672                                src_v, src_stride_v,
    673                                src_a, src_stride_a,
    674                                dst_argb, dst_stride_argb,
    675                                &kYuvI601Constants,
    676                                width, height, attenuate);
    677 }
    678 
    679 // Convert I420 with Alpha to ABGR.
    680 LIBYUV_API
    681 int I420AlphaToABGR(const uint8* src_y, int src_stride_y,
    682                     const uint8* src_u, int src_stride_u,
    683                     const uint8* src_v, int src_stride_v,
    684                     const uint8* src_a, int src_stride_a,
    685                     uint8* dst_abgr, int dst_stride_abgr,
    686                     int width, int height, int attenuate) {
    687   return I420AlphaToARGBMatrix(src_y, src_stride_y,
    688                                src_v, src_stride_v,  // Swap U and V
    689                                src_u, src_stride_u,
    690                                src_a, src_stride_a,
    691                                dst_abgr, dst_stride_abgr,
    692                                &kYvuI601Constants,  // Use Yvu matrix
    693                                width, height, attenuate);
    694 }
    695 
    696 // Convert I400 to ARGB.
    697 LIBYUV_API
    698 int I400ToARGB(const uint8* src_y, int src_stride_y,
    699                uint8* dst_argb, int dst_stride_argb,
    700                int width, int height) {
    701   int y;
    702   void (*I400ToARGBRow)(const uint8* y_buf,
    703                      uint8* rgb_buf,
    704                      int width) = I400ToARGBRow_C;
    705   if (!src_y || !dst_argb ||
    706       width <= 0 || height == 0) {
    707     return -1;
    708   }
    709   // Negative height means invert the image.
    710   if (height < 0) {
    711     height = -height;
    712     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
    713     dst_stride_argb = -dst_stride_argb;
    714   }
    715   // Coalesce rows.
    716   if (src_stride_y == width &&
    717       dst_stride_argb == width * 4) {
    718     width *= height;
    719     height = 1;
    720     src_stride_y = dst_stride_argb = 0;
    721   }
    722 #if defined(HAS_I400TOARGBROW_SSE2)
    723   if (TestCpuFlag(kCpuHasSSE2)) {
    724     I400ToARGBRow = I400ToARGBRow_Any_SSE2;
    725     if (IS_ALIGNED(width, 8)) {
    726       I400ToARGBRow = I400ToARGBRow_SSE2;
    727     }
    728   }
    729 #endif
    730 #if defined(HAS_I400TOARGBROW_AVX2)
    731   if (TestCpuFlag(kCpuHasAVX2)) {
    732     I400ToARGBRow = I400ToARGBRow_Any_AVX2;
    733     if (IS_ALIGNED(width, 16)) {
    734       I400ToARGBRow = I400ToARGBRow_AVX2;
    735     }
    736   }
    737 #endif
    738 #if defined(HAS_I400TOARGBROW_NEON)
    739   if (TestCpuFlag(kCpuHasNEON)) {
    740     I400ToARGBRow = I400ToARGBRow_Any_NEON;
    741     if (IS_ALIGNED(width, 8)) {
    742       I400ToARGBRow = I400ToARGBRow_NEON;
    743     }
    744   }
    745 #endif
    746 
    747   for (y = 0; y < height; ++y) {
    748     I400ToARGBRow(src_y, dst_argb, width);
    749     dst_argb += dst_stride_argb;
    750     src_y += src_stride_y;
    751   }
    752   return 0;
    753 }
    754 
    755 // Convert J400 to ARGB.
    756 LIBYUV_API
    757 int J400ToARGB(const uint8* src_y, int src_stride_y,
    758                uint8* dst_argb, int dst_stride_argb,
    759                int width, int height) {
    760   int y;
    761   void (*J400ToARGBRow)(const uint8* src_y, uint8* dst_argb, int width) =
    762       J400ToARGBRow_C;
    763   if (!src_y || !dst_argb ||
    764       width <= 0 || height == 0) {
    765     return -1;
    766   }
    767   // Negative height means invert the image.
    768   if (height < 0) {
    769     height = -height;
    770     src_y = src_y + (height - 1) * src_stride_y;
    771     src_stride_y = -src_stride_y;
    772   }
    773   // Coalesce rows.
    774   if (src_stride_y == width &&
    775       dst_stride_argb == width * 4) {
    776     width *= height;
    777     height = 1;
    778     src_stride_y = dst_stride_argb = 0;
    779   }
    780 #if defined(HAS_J400TOARGBROW_SSE2)
    781   if (TestCpuFlag(kCpuHasSSE2)) {
    782     J400ToARGBRow = J400ToARGBRow_Any_SSE2;
    783     if (IS_ALIGNED(width, 8)) {
    784       J400ToARGBRow = J400ToARGBRow_SSE2;
    785     }
    786   }
    787 #endif
    788 #if defined(HAS_J400TOARGBROW_AVX2)
    789   if (TestCpuFlag(kCpuHasAVX2)) {
    790     J400ToARGBRow = J400ToARGBRow_Any_AVX2;
    791     if (IS_ALIGNED(width, 16)) {
    792       J400ToARGBRow = J400ToARGBRow_AVX2;
    793     }
    794   }
    795 #endif
    796 #if defined(HAS_J400TOARGBROW_NEON)
    797   if (TestCpuFlag(kCpuHasNEON)) {
    798     J400ToARGBRow = J400ToARGBRow_Any_NEON;
    799     if (IS_ALIGNED(width, 8)) {
    800       J400ToARGBRow = J400ToARGBRow_NEON;
    801     }
    802   }
    803 #endif
    804   for (y = 0; y < height; ++y) {
    805     J400ToARGBRow(src_y, dst_argb, width);
    806     src_y += src_stride_y;
    807     dst_argb += dst_stride_argb;
    808   }
    809   return 0;
    810 }
    811 
    812 // Shuffle table for converting BGRA to ARGB.
    813 static uvec8 kShuffleMaskBGRAToARGB = {
    814   3u, 2u, 1u, 0u, 7u, 6u, 5u, 4u, 11u, 10u, 9u, 8u, 15u, 14u, 13u, 12u
    815 };
    816 
    817 // Shuffle table for converting ABGR to ARGB.
    818 static uvec8 kShuffleMaskABGRToARGB = {
    819   2u, 1u, 0u, 3u, 6u, 5u, 4u, 7u, 10u, 9u, 8u, 11u, 14u, 13u, 12u, 15u
    820 };
    821 
    822 // Shuffle table for converting RGBA to ARGB.
    823 static uvec8 kShuffleMaskRGBAToARGB = {
    824   1u, 2u, 3u, 0u, 5u, 6u, 7u, 4u, 9u, 10u, 11u, 8u, 13u, 14u, 15u, 12u
    825 };
    826 
    827 // Convert BGRA to ARGB.
    828 LIBYUV_API
    829 int BGRAToARGB(const uint8* src_bgra, int src_stride_bgra,
    830                uint8* dst_argb, int dst_stride_argb,
    831                int width, int height) {
    832   return ARGBShuffle(src_bgra, src_stride_bgra,
    833                      dst_argb, dst_stride_argb,
    834                      (const uint8*)(&kShuffleMaskBGRAToARGB),
    835                      width, height);
    836 }
    837 
    838 // Convert ARGB to BGRA (same as BGRAToARGB).
    839 LIBYUV_API
    840 int ARGBToBGRA(const uint8* src_bgra, int src_stride_bgra,
    841                uint8* dst_argb, int dst_stride_argb,
    842                int width, int height) {
    843   return ARGBShuffle(src_bgra, src_stride_bgra,
    844                      dst_argb, dst_stride_argb,
    845                      (const uint8*)(&kShuffleMaskBGRAToARGB),
    846                      width, height);
    847 }
    848 
    849 // Convert ABGR to ARGB.
    850 LIBYUV_API
    851 int ABGRToARGB(const uint8* src_abgr, int src_stride_abgr,
    852                uint8* dst_argb, int dst_stride_argb,
    853                int width, int height) {
    854   return ARGBShuffle(src_abgr, src_stride_abgr,
    855                      dst_argb, dst_stride_argb,
    856                      (const uint8*)(&kShuffleMaskABGRToARGB),
    857                      width, height);
    858 }
    859 
    860 // Convert ARGB to ABGR to (same as ABGRToARGB).
    861 LIBYUV_API
    862 int ARGBToABGR(const uint8* src_abgr, int src_stride_abgr,
    863                uint8* dst_argb, int dst_stride_argb,
    864                int width, int height) {
    865   return ARGBShuffle(src_abgr, src_stride_abgr,
    866                      dst_argb, dst_stride_argb,
    867                      (const uint8*)(&kShuffleMaskABGRToARGB),
    868                      width, height);
    869 }
    870 
    871 // Convert RGBA to ARGB.
    872 LIBYUV_API
    873 int RGBAToARGB(const uint8* src_rgba, int src_stride_rgba,
    874                uint8* dst_argb, int dst_stride_argb,
    875                int width, int height) {
    876   return ARGBShuffle(src_rgba, src_stride_rgba,
    877                      dst_argb, dst_stride_argb,
    878                      (const uint8*)(&kShuffleMaskRGBAToARGB),
    879                      width, height);
    880 }
    881 
    882 // Convert RGB24 to ARGB.
    883 LIBYUV_API
    884 int RGB24ToARGB(const uint8* src_rgb24, int src_stride_rgb24,
    885                 uint8* dst_argb, int dst_stride_argb,
    886                 int width, int height) {
    887   int y;
    888   void (*RGB24ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
    889       RGB24ToARGBRow_C;
    890   if (!src_rgb24 || !dst_argb ||
    891       width <= 0 || height == 0) {
    892     return -1;
    893   }
    894   // Negative height means invert the image.
    895   if (height < 0) {
    896     height = -height;
    897     src_rgb24 = src_rgb24 + (height - 1) * src_stride_rgb24;
    898     src_stride_rgb24 = -src_stride_rgb24;
    899   }
    900   // Coalesce rows.
    901   if (src_stride_rgb24 == width * 3 &&
    902       dst_stride_argb == width * 4) {
    903     width *= height;
    904     height = 1;
    905     src_stride_rgb24 = dst_stride_argb = 0;
    906   }
    907 #if defined(HAS_RGB24TOARGBROW_SSSE3)
    908   if (TestCpuFlag(kCpuHasSSSE3)) {
    909     RGB24ToARGBRow = RGB24ToARGBRow_Any_SSSE3;
    910     if (IS_ALIGNED(width, 16)) {
    911       RGB24ToARGBRow = RGB24ToARGBRow_SSSE3;
    912     }
    913   }
    914 #endif
    915 #if defined(HAS_RGB24TOARGBROW_NEON)
    916   if (TestCpuFlag(kCpuHasNEON)) {
    917     RGB24ToARGBRow = RGB24ToARGBRow_Any_NEON;
    918     if (IS_ALIGNED(width, 8)) {
    919       RGB24ToARGBRow = RGB24ToARGBRow_NEON;
    920     }
    921   }
    922 #endif
    923 
    924   for (y = 0; y < height; ++y) {
    925     RGB24ToARGBRow(src_rgb24, dst_argb, width);
    926     src_rgb24 += src_stride_rgb24;
    927     dst_argb += dst_stride_argb;
    928   }
    929   return 0;
    930 }
    931 
    932 // Convert RAW to ARGB.
    933 LIBYUV_API
    934 int RAWToARGB(const uint8* src_raw, int src_stride_raw,
    935               uint8* dst_argb, int dst_stride_argb,
    936               int width, int height) {
    937   int y;
    938   void (*RAWToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
    939       RAWToARGBRow_C;
    940   if (!src_raw || !dst_argb ||
    941       width <= 0 || height == 0) {
    942     return -1;
    943   }
    944   // Negative height means invert the image.
    945   if (height < 0) {
    946     height = -height;
    947     src_raw = src_raw + (height - 1) * src_stride_raw;
    948     src_stride_raw = -src_stride_raw;
    949   }
    950   // Coalesce rows.
    951   if (src_stride_raw == width * 3 &&
    952       dst_stride_argb == width * 4) {
    953     width *= height;
    954     height = 1;
    955     src_stride_raw = dst_stride_argb = 0;
    956   }
    957 #if defined(HAS_RAWTOARGBROW_SSSE3)
    958   if (TestCpuFlag(kCpuHasSSSE3)) {
    959     RAWToARGBRow = RAWToARGBRow_Any_SSSE3;
    960     if (IS_ALIGNED(width, 16)) {
    961       RAWToARGBRow = RAWToARGBRow_SSSE3;
    962     }
    963   }
    964 #endif
    965 #if defined(HAS_RAWTOARGBROW_NEON)
    966   if (TestCpuFlag(kCpuHasNEON)) {
    967     RAWToARGBRow = RAWToARGBRow_Any_NEON;
    968     if (IS_ALIGNED(width, 8)) {
    969       RAWToARGBRow = RAWToARGBRow_NEON;
    970     }
    971   }
    972 #endif
    973 
    974   for (y = 0; y < height; ++y) {
    975     RAWToARGBRow(src_raw, dst_argb, width);
    976     src_raw += src_stride_raw;
    977     dst_argb += dst_stride_argb;
    978   }
    979   return 0;
    980 }
    981 
    982 // Convert RGB565 to ARGB.
    983 LIBYUV_API
    984 int RGB565ToARGB(const uint8* src_rgb565, int src_stride_rgb565,
    985                  uint8* dst_argb, int dst_stride_argb,
    986                  int width, int height) {
    987   int y;
    988   void (*RGB565ToARGBRow)(const uint8* src_rgb565, uint8* dst_argb, int width) =
    989       RGB565ToARGBRow_C;
    990   if (!src_rgb565 || !dst_argb ||
    991       width <= 0 || height == 0) {
    992     return -1;
    993   }
    994   // Negative height means invert the image.
    995   if (height < 0) {
    996     height = -height;
    997     src_rgb565 = src_rgb565 + (height - 1) * src_stride_rgb565;
    998     src_stride_rgb565 = -src_stride_rgb565;
    999   }
   1000   // Coalesce rows.
   1001   if (src_stride_rgb565 == width * 2 &&
   1002       dst_stride_argb == width * 4) {
   1003     width *= height;
   1004     height = 1;
   1005     src_stride_rgb565 = dst_stride_argb = 0;
   1006   }
   1007 #if defined(HAS_RGB565TOARGBROW_SSE2)
   1008   if (TestCpuFlag(kCpuHasSSE2)) {
   1009     RGB565ToARGBRow = RGB565ToARGBRow_Any_SSE2;
   1010     if (IS_ALIGNED(width, 8)) {
   1011       RGB565ToARGBRow = RGB565ToARGBRow_SSE2;
   1012     }
   1013   }
   1014 #endif
   1015 #if defined(HAS_RGB565TOARGBROW_AVX2)
   1016   if (TestCpuFlag(kCpuHasAVX2)) {
   1017     RGB565ToARGBRow = RGB565ToARGBRow_Any_AVX2;
   1018     if (IS_ALIGNED(width, 16)) {
   1019       RGB565ToARGBRow = RGB565ToARGBRow_AVX2;
   1020     }
   1021   }
   1022 #endif
   1023 #if defined(HAS_RGB565TOARGBROW_NEON)
   1024   if (TestCpuFlag(kCpuHasNEON)) {
   1025     RGB565ToARGBRow = RGB565ToARGBRow_Any_NEON;
   1026     if (IS_ALIGNED(width, 8)) {
   1027       RGB565ToARGBRow = RGB565ToARGBRow_NEON;
   1028     }
   1029   }
   1030 #endif
   1031 
   1032   for (y = 0; y < height; ++y) {
   1033     RGB565ToARGBRow(src_rgb565, dst_argb, width);
   1034     src_rgb565 += src_stride_rgb565;
   1035     dst_argb += dst_stride_argb;
   1036   }
   1037   return 0;
   1038 }
   1039 
   1040 // Convert ARGB1555 to ARGB.
   1041 LIBYUV_API
   1042 int ARGB1555ToARGB(const uint8* src_argb1555, int src_stride_argb1555,
   1043                    uint8* dst_argb, int dst_stride_argb,
   1044                    int width, int height) {
   1045   int y;
   1046   void (*ARGB1555ToARGBRow)(const uint8* src_argb1555, uint8* dst_argb,
   1047       int width) = ARGB1555ToARGBRow_C;
   1048   if (!src_argb1555 || !dst_argb ||
   1049       width <= 0 || height == 0) {
   1050     return -1;
   1051   }
   1052   // Negative height means invert the image.
   1053   if (height < 0) {
   1054     height = -height;
   1055     src_argb1555 = src_argb1555 + (height - 1) * src_stride_argb1555;
   1056     src_stride_argb1555 = -src_stride_argb1555;
   1057   }
   1058   // Coalesce rows.
   1059   if (src_stride_argb1555 == width * 2 &&
   1060       dst_stride_argb == width * 4) {
   1061     width *= height;
   1062     height = 1;
   1063     src_stride_argb1555 = dst_stride_argb = 0;
   1064   }
   1065 #if defined(HAS_ARGB1555TOARGBROW_SSE2)
   1066   if (TestCpuFlag(kCpuHasSSE2)) {
   1067     ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_SSE2;
   1068     if (IS_ALIGNED(width, 8)) {
   1069       ARGB1555ToARGBRow = ARGB1555ToARGBRow_SSE2;
   1070     }
   1071   }
   1072 #endif
   1073 #if defined(HAS_ARGB1555TOARGBROW_AVX2)
   1074   if (TestCpuFlag(kCpuHasAVX2)) {
   1075     ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_AVX2;
   1076     if (IS_ALIGNED(width, 16)) {
   1077       ARGB1555ToARGBRow = ARGB1555ToARGBRow_AVX2;
   1078     }
   1079   }
   1080 #endif
   1081 #if defined(HAS_ARGB1555TOARGBROW_NEON)
   1082   if (TestCpuFlag(kCpuHasNEON)) {
   1083     ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_NEON;
   1084     if (IS_ALIGNED(width, 8)) {
   1085       ARGB1555ToARGBRow = ARGB1555ToARGBRow_NEON;
   1086     }
   1087   }
   1088 #endif
   1089 
   1090   for (y = 0; y < height; ++y) {
   1091     ARGB1555ToARGBRow(src_argb1555, dst_argb, width);
   1092     src_argb1555 += src_stride_argb1555;
   1093     dst_argb += dst_stride_argb;
   1094   }
   1095   return 0;
   1096 }
   1097 
   1098 // Convert ARGB4444 to ARGB.
   1099 LIBYUV_API
   1100 int ARGB4444ToARGB(const uint8* src_argb4444, int src_stride_argb4444,
   1101                    uint8* dst_argb, int dst_stride_argb,
   1102                    int width, int height) {
   1103   int y;
   1104   void (*ARGB4444ToARGBRow)(const uint8* src_argb4444, uint8* dst_argb,
   1105       int width) = ARGB4444ToARGBRow_C;
   1106   if (!src_argb4444 || !dst_argb ||
   1107       width <= 0 || height == 0) {
   1108     return -1;
   1109   }
   1110   // Negative height means invert the image.
   1111   if (height < 0) {
   1112     height = -height;
   1113     src_argb4444 = src_argb4444 + (height - 1) * src_stride_argb4444;
   1114     src_stride_argb4444 = -src_stride_argb4444;
   1115   }
   1116   // Coalesce rows.
   1117   if (src_stride_argb4444 == width * 2 &&
   1118       dst_stride_argb == width * 4) {
   1119     width *= height;
   1120     height = 1;
   1121     src_stride_argb4444 = dst_stride_argb = 0;
   1122   }
   1123 #if defined(HAS_ARGB4444TOARGBROW_SSE2)
   1124   if (TestCpuFlag(kCpuHasSSE2)) {
   1125     ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_SSE2;
   1126     if (IS_ALIGNED(width, 8)) {
   1127       ARGB4444ToARGBRow = ARGB4444ToARGBRow_SSE2;
   1128     }
   1129   }
   1130 #endif
   1131 #if defined(HAS_ARGB4444TOARGBROW_AVX2)
   1132   if (TestCpuFlag(kCpuHasAVX2)) {
   1133     ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_AVX2;
   1134     if (IS_ALIGNED(width, 16)) {
   1135       ARGB4444ToARGBRow = ARGB4444ToARGBRow_AVX2;
   1136     }
   1137   }
   1138 #endif
   1139 #if defined(HAS_ARGB4444TOARGBROW_NEON)
   1140   if (TestCpuFlag(kCpuHasNEON)) {
   1141     ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_NEON;
   1142     if (IS_ALIGNED(width, 8)) {
   1143       ARGB4444ToARGBRow = ARGB4444ToARGBRow_NEON;
   1144     }
   1145   }
   1146 #endif
   1147 
   1148   for (y = 0; y < height; ++y) {
   1149     ARGB4444ToARGBRow(src_argb4444, dst_argb, width);
   1150     src_argb4444 += src_stride_argb4444;
   1151     dst_argb += dst_stride_argb;
   1152   }
   1153   return 0;
   1154 }
   1155 
   1156 // Convert NV12 to ARGB.
   1157 LIBYUV_API
   1158 int NV12ToARGB(const uint8* src_y, int src_stride_y,
   1159                const uint8* src_uv, int src_stride_uv,
   1160                uint8* dst_argb, int dst_stride_argb,
   1161                int width, int height) {
   1162   int y;
   1163   void (*NV12ToARGBRow)(const uint8* y_buf,
   1164                         const uint8* uv_buf,
   1165                         uint8* rgb_buf,
   1166                         const struct YuvConstants* yuvconstants,
   1167                         int width) = NV12ToARGBRow_C;
   1168   if (!src_y || !src_uv || !dst_argb ||
   1169       width <= 0 || height == 0) {
   1170     return -1;
   1171   }
   1172   // Negative height means invert the image.
   1173   if (height < 0) {
   1174     height = -height;
   1175     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
   1176     dst_stride_argb = -dst_stride_argb;
   1177   }
   1178 #if defined(HAS_NV12TOARGBROW_SSSE3)
   1179   if (TestCpuFlag(kCpuHasSSSE3)) {
   1180     NV12ToARGBRow = NV12ToARGBRow_Any_SSSE3;
   1181     if (IS_ALIGNED(width, 8)) {
   1182       NV12ToARGBRow = NV12ToARGBRow_SSSE3;
   1183     }
   1184   }
   1185 #endif
   1186 #if defined(HAS_NV12TOARGBROW_AVX2)
   1187   if (TestCpuFlag(kCpuHasAVX2)) {
   1188     NV12ToARGBRow = NV12ToARGBRow_Any_AVX2;
   1189     if (IS_ALIGNED(width, 16)) {
   1190       NV12ToARGBRow = NV12ToARGBRow_AVX2;
   1191     }
   1192   }
   1193 #endif
   1194 #if defined(HAS_NV12TOARGBROW_NEON)
   1195   if (TestCpuFlag(kCpuHasNEON)) {
   1196     NV12ToARGBRow = NV12ToARGBRow_Any_NEON;
   1197     if (IS_ALIGNED(width, 8)) {
   1198       NV12ToARGBRow = NV12ToARGBRow_NEON;
   1199     }
   1200   }
   1201 #endif
   1202 
   1203   for (y = 0; y < height; ++y) {
   1204     NV12ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
   1205     dst_argb += dst_stride_argb;
   1206     src_y += src_stride_y;
   1207     if (y & 1) {
   1208       src_uv += src_stride_uv;
   1209     }
   1210   }
   1211   return 0;
   1212 }
   1213 
   1214 // Convert NV21 to ARGB.
   1215 LIBYUV_API
   1216 int NV21ToARGB(const uint8* src_y, int src_stride_y,
   1217                const uint8* src_uv, int src_stride_uv,
   1218                uint8* dst_argb, int dst_stride_argb,
   1219                int width, int height) {
   1220   int y;
   1221   void (*NV21ToARGBRow)(const uint8* y_buf,
   1222                         const uint8* uv_buf,
   1223                         uint8* rgb_buf,
   1224                         const struct YuvConstants* yuvconstants,
   1225                         int width) = NV21ToARGBRow_C;
   1226   if (!src_y || !src_uv || !dst_argb ||
   1227       width <= 0 || height == 0) {
   1228     return -1;
   1229   }
   1230   // Negative height means invert the image.
   1231   if (height < 0) {
   1232     height = -height;
   1233     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
   1234     dst_stride_argb = -dst_stride_argb;
   1235   }
   1236 #if defined(HAS_NV21TOARGBROW_SSSE3)
   1237   if (TestCpuFlag(kCpuHasSSSE3)) {
   1238     NV21ToARGBRow = NV21ToARGBRow_Any_SSSE3;
   1239     if (IS_ALIGNED(width, 8)) {
   1240       NV21ToARGBRow = NV21ToARGBRow_SSSE3;
   1241     }
   1242   }
   1243 #endif
   1244 #if defined(HAS_NV21TOARGBROW_AVX2)
   1245   if (TestCpuFlag(kCpuHasAVX2)) {
   1246     NV21ToARGBRow = NV21ToARGBRow_Any_AVX2;
   1247     if (IS_ALIGNED(width, 16)) {
   1248       NV21ToARGBRow = NV21ToARGBRow_AVX2;
   1249     }
   1250   }
   1251 #endif
   1252 #if defined(HAS_NV21TOARGBROW_NEON)
   1253   if (TestCpuFlag(kCpuHasNEON)) {
   1254     NV21ToARGBRow = NV21ToARGBRow_Any_NEON;
   1255     if (IS_ALIGNED(width, 8)) {
   1256       NV21ToARGBRow = NV21ToARGBRow_NEON;
   1257     }
   1258   }
   1259 #endif
   1260 
   1261   for (y = 0; y < height; ++y) {
   1262     NV21ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
   1263     dst_argb += dst_stride_argb;
   1264     src_y += src_stride_y;
   1265     if (y & 1) {
   1266       src_uv += src_stride_uv;
   1267     }
   1268   }
   1269   return 0;
   1270 }
   1271 
   1272 // Convert M420 to ARGB.
   1273 LIBYUV_API
   1274 int M420ToARGB(const uint8* src_m420, int src_stride_m420,
   1275                uint8* dst_argb, int dst_stride_argb,
   1276                int width, int height) {
   1277   int y;
   1278   void (*NV12ToARGBRow)(const uint8* y_buf,
   1279                         const uint8* uv_buf,
   1280                         uint8* rgb_buf,
   1281                         const struct YuvConstants* yuvconstants,
   1282                         int width) = NV12ToARGBRow_C;
   1283   if (!src_m420 || !dst_argb ||
   1284       width <= 0 || height == 0) {
   1285     return -1;
   1286   }
   1287   // Negative height means invert the image.
   1288   if (height < 0) {
   1289     height = -height;
   1290     dst_argb = dst_argb + (height - 1) * dst_stride_argb;
   1291     dst_stride_argb = -dst_stride_argb;
   1292   }
   1293 #if defined(HAS_NV12TOARGBROW_SSSE3)
   1294   if (TestCpuFlag(kCpuHasSSSE3)) {
   1295     NV12ToARGBRow = NV12ToARGBRow_Any_SSSE3;
   1296     if (IS_ALIGNED(width, 8)) {
   1297       NV12ToARGBRow = NV12ToARGBRow_SSSE3;
   1298     }
   1299   }
   1300 #endif
   1301 #if defined(HAS_NV12TOARGBROW_AVX2)
   1302   if (TestCpuFlag(kCpuHasAVX2)) {
   1303     NV12ToARGBRow = NV12ToARGBRow_Any_AVX2;
   1304     if (IS_ALIGNED(width, 16)) {
   1305       NV12ToARGBRow = NV12ToARGBRow_AVX2;
   1306     }
   1307   }
   1308 #endif
   1309 #if defined(HAS_NV12TOARGBROW_NEON)
   1310   if (TestCpuFlag(kCpuHasNEON)) {
   1311     NV12ToARGBRow = NV12ToARGBRow_Any_NEON;
   1312     if (IS_ALIGNED(width, 8)) {
   1313       NV12ToARGBRow = NV12ToARGBRow_NEON;
   1314     }
   1315   }
   1316 #endif
   1317 
   1318   for (y = 0; y < height - 1; y += 2) {
   1319     NV12ToARGBRow(src_m420, src_m420 + src_stride_m420 * 2, dst_argb,
   1320                   &kYuvI601Constants, width);
   1321     NV12ToARGBRow(src_m420 + src_stride_m420, src_m420 + src_stride_m420 * 2,
   1322                   dst_argb + dst_stride_argb, &kYuvI601Constants, width);
   1323     dst_argb += dst_stride_argb * 2;
   1324     src_m420 += src_stride_m420 * 3;
   1325   }
   1326   if (height & 1) {
   1327     NV12ToARGBRow(src_m420, src_m420 + src_stride_m420 * 2, dst_argb,
   1328                   &kYuvI601Constants, width);
   1329   }
   1330   return 0;
   1331 }
   1332 
   1333 // Convert YUY2 to ARGB.
   1334 LIBYUV_API
   1335 int YUY2ToARGB(const uint8* src_yuy2, int src_stride_yuy2,
   1336                uint8* dst_argb, int dst_stride_argb,
   1337                int width, int height) {
   1338   int y;
   1339   void (*YUY2ToARGBRow)(const uint8* src_yuy2,
   1340                         uint8* dst_argb,
   1341                         const struct YuvConstants* yuvconstants,
   1342                         int width) =
   1343       YUY2ToARGBRow_C;
   1344   if (!src_yuy2 || !dst_argb ||
   1345       width <= 0 || height == 0) {
   1346     return -1;
   1347   }
   1348   // Negative height means invert the image.
   1349   if (height < 0) {
   1350     height = -height;
   1351     src_yuy2 = src_yuy2 + (height - 1) * src_stride_yuy2;
   1352     src_stride_yuy2 = -src_stride_yuy2;
   1353   }
   1354   // Coalesce rows.
   1355   if (src_stride_yuy2 == width * 2 &&
   1356       dst_stride_argb == width * 4) {
   1357     width *= height;
   1358     height = 1;
   1359     src_stride_yuy2 = dst_stride_argb = 0;
   1360   }
   1361 #if defined(HAS_YUY2TOARGBROW_SSSE3)
   1362   if (TestCpuFlag(kCpuHasSSSE3)) {
   1363     YUY2ToARGBRow = YUY2ToARGBRow_Any_SSSE3;
   1364     if (IS_ALIGNED(width, 16)) {
   1365       YUY2ToARGBRow = YUY2ToARGBRow_SSSE3;
   1366     }
   1367   }
   1368 #endif
   1369 #if defined(HAS_YUY2TOARGBROW_AVX2)
   1370   if (TestCpuFlag(kCpuHasAVX2)) {
   1371     YUY2ToARGBRow = YUY2ToARGBRow_Any_AVX2;
   1372     if (IS_ALIGNED(width, 32)) {
   1373       YUY2ToARGBRow = YUY2ToARGBRow_AVX2;
   1374     }
   1375   }
   1376 #endif
   1377 #if defined(HAS_YUY2TOARGBROW_NEON)
   1378   if (TestCpuFlag(kCpuHasNEON)) {
   1379     YUY2ToARGBRow = YUY2ToARGBRow_Any_NEON;
   1380     if (IS_ALIGNED(width, 8)) {
   1381       YUY2ToARGBRow = YUY2ToARGBRow_NEON;
   1382     }
   1383   }
   1384 #endif
   1385   for (y = 0; y < height; ++y) {
   1386     YUY2ToARGBRow(src_yuy2, dst_argb, &kYuvI601Constants, width);
   1387     src_yuy2 += src_stride_yuy2;
   1388     dst_argb += dst_stride_argb;
   1389   }
   1390   return 0;
   1391 }
   1392 
   1393 // Convert UYVY to ARGB.
   1394 LIBYUV_API
   1395 int UYVYToARGB(const uint8* src_uyvy, int src_stride_uyvy,
   1396                uint8* dst_argb, int dst_stride_argb,
   1397                int width, int height) {
   1398   int y;
   1399   void (*UYVYToARGBRow)(const uint8* src_uyvy,
   1400                         uint8* dst_argb,
   1401                         const struct YuvConstants* yuvconstants,
   1402                         int width) =
   1403       UYVYToARGBRow_C;
   1404   if (!src_uyvy || !dst_argb ||
   1405       width <= 0 || height == 0) {
   1406     return -1;
   1407   }
   1408   // Negative height means invert the image.
   1409   if (height < 0) {
   1410     height = -height;
   1411     src_uyvy = src_uyvy + (height - 1) * src_stride_uyvy;
   1412     src_stride_uyvy = -src_stride_uyvy;
   1413   }
   1414   // Coalesce rows.
   1415   if (src_stride_uyvy == width * 2 &&
   1416       dst_stride_argb == width * 4) {
   1417     width *= height;
   1418     height = 1;
   1419     src_stride_uyvy = dst_stride_argb = 0;
   1420   }
   1421 #if defined(HAS_UYVYTOARGBROW_SSSE3)
   1422   if (TestCpuFlag(kCpuHasSSSE3)) {
   1423     UYVYToARGBRow = UYVYToARGBRow_Any_SSSE3;
   1424     if (IS_ALIGNED(width, 16)) {
   1425       UYVYToARGBRow = UYVYToARGBRow_SSSE3;
   1426     }
   1427   }
   1428 #endif
   1429 #if defined(HAS_UYVYTOARGBROW_AVX2)
   1430   if (TestCpuFlag(kCpuHasAVX2)) {
   1431     UYVYToARGBRow = UYVYToARGBRow_Any_AVX2;
   1432     if (IS_ALIGNED(width, 32)) {
   1433       UYVYToARGBRow = UYVYToARGBRow_AVX2;
   1434     }
   1435   }
   1436 #endif
   1437 #if defined(HAS_UYVYTOARGBROW_NEON)
   1438   if (TestCpuFlag(kCpuHasNEON)) {
   1439     UYVYToARGBRow = UYVYToARGBRow_Any_NEON;
   1440     if (IS_ALIGNED(width, 8)) {
   1441       UYVYToARGBRow = UYVYToARGBRow_NEON;
   1442     }
   1443   }
   1444 #endif
   1445   for (y = 0; y < height; ++y) {
   1446     UYVYToARGBRow(src_uyvy, dst_argb, &kYuvI601Constants, width);
   1447     src_uyvy += src_stride_uyvy;
   1448     dst_argb += dst_stride_argb;
   1449   }
   1450   return 0;
   1451 }
   1452 
   1453 #ifdef __cplusplus
   1454 }  // extern "C"
   1455 }  // namespace libyuv
   1456 #endif
   1457