git.sesse.net Git - vlc/blob - modules/video_chroma/i420_yuy2.c

   1 /*****************************************************************************
   2  * i420_yuy2.c : YUV to YUV conversion module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <string.h>                                            /* strerror() */
  28 #include <stdlib.h>                                      /* malloc(), free() */
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc/vout.h>
  32
  33 #include "i420_yuy2.h"
  34
  35 #define SRC_FOURCC  "I420,IYUV,YV12"
  36
  37 #if defined (MODULE_NAME_IS_i420_yuy2)
  38 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
  39 #elif defined (MODULE_NAME_IS_i420_yuy2_mmx)
  40 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
  41 #elif defined (MODULE_NAME_IS_i420_yuy2_altivec)
  42 #    define DEST_FOURCC "YUY2,YUNV"
  43 #endif
  44
  45 /*****************************************************************************
  46  * Local and extern prototypes.
  47  *****************************************************************************/
  48 static int  Activate ( vlc_object_t * );
  49
  50 static void I420_YUY2           ( vout_thread_t *, picture_t *, picture_t * );
  51 #if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
  52 static void I420_YVYU           ( vout_thread_t *, picture_t *, picture_t * );
  53 static void I420_UYVY           ( vout_thread_t *, picture_t *, picture_t * );
  54 static void I420_IUYV           ( vout_thread_t *, picture_t *, picture_t * );
  55 static void I420_cyuv           ( vout_thread_t *, picture_t *, picture_t * );
  56 #endif
  57 #if defined (MODULE_NAME_IS_i420_yuy2)
  58 static void I420_Y211           ( vout_thread_t *, picture_t *, picture_t * );
  59 #endif
  60
  61 #ifdef MODULE_NAME_IS_i420_yuy2_mmx
  62 static uint64_t i_00ffw;
  63 static uint64_t i_80w;
  64 #endif
  65
  66 /*****************************************************************************
  67  * Module descriptor.
  68  *****************************************************************************/
  69 vlc_module_begin();
  70 #if defined (MODULE_NAME_IS_i420_yuy2)
  71     set_description( _("Conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  72     set_capability( "chroma", 80 );
  73 #elif defined (MODULE_NAME_IS_i420_yuy2_mmx)
  74     set_description( _("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  75     set_capability( "chroma", 100 );
  76     add_requirement( MMX );
  77     /* Initialize MMX-specific constants */
  78     i_00ffw = 0x00ff00ff00ff00ffULL;
  79     i_80w   = 0x0000000080808080ULL;
  80 #elif defined (MODULE_NAME_IS_i420_yuy2_altivec)
  81     set_description(
  82             _("Altivec conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  83     set_capability( "chroma", 100 );
  84     add_requirement( ALTIVEC );
  85 #endif
  86     set_callbacks( Activate, NULL );
  87 vlc_module_end();
  88
  89 /*****************************************************************************
  90  * Activate: allocate a chroma function
  91  *****************************************************************************
  92  * This function allocates and initializes a chroma function
  93  *****************************************************************************/
  94 static int Activate( vlc_object_t *p_this )
  95 {
  96     vout_thread_t *p_vout = (vout_thread_t *)p_this;
  97
  98     if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
  99     {
 100         return -1;
 101     }
 102
 103     switch( p_vout->render.i_chroma )
 104     {
 105         case VLC_FOURCC('Y','V','1','2'):
 106         case VLC_FOURCC('I','4','2','0'):
 107         case VLC_FOURCC('I','Y','U','V'):
 108             switch( p_vout->output.i_chroma )
 109             {
 110                 case VLC_FOURCC('Y','U','Y','2'):
 111                 case VLC_FOURCC('Y','U','N','V'):
 112                     p_vout->chroma.pf_convert = I420_YUY2;
 113                     break;
 114
 115 #if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
 116                 case VLC_FOURCC('Y','V','Y','U'):
 117                     p_vout->chroma.pf_convert = I420_YVYU;
 118                     break;
 119
 120                 case VLC_FOURCC('U','Y','V','Y'):
 121                 case VLC_FOURCC('U','Y','N','V'):
 122                 case VLC_FOURCC('Y','4','2','2'):
 123                     p_vout->chroma.pf_convert = I420_UYVY;
 124                     break;
 125
 126                 case VLC_FOURCC('I','U','Y','V'):
 127                     p_vout->chroma.pf_convert = I420_IUYV;
 128                     break;
 129
 130                 case VLC_FOURCC('c','y','u','v'):
 131                     p_vout->chroma.pf_convert = I420_cyuv;
 132                     break;
 133 #endif
 134
 135 #if defined (MODULE_NAME_IS_i420_yuy2)
 136                 case VLC_FOURCC('Y','2','1','1'):
 137                     p_vout->chroma.pf_convert = I420_Y211;
 138                     break;
 139 #endif
 140
 141                 default:
 142                     return -1;
 143             }
 144             break;
 145
 146         default:
 147             return -1;
 148     }
 149
 150     return 0;
 151 }
 152
 153 /* Following functions are local */
 154
 155 /*****************************************************************************
 156  * I420_YUY2: planar YUV 4:2:0 to packed YUYV 4:2:2
 157  *****************************************************************************/
 158 static void I420_YUY2( vout_thread_t *p_vout, picture_t *p_source,
 159                                               picture_t *p_dest )
 160 {
 161     uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
 162     uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
 163     uint8_t *p_u = p_source->U_PIXELS;
 164     uint8_t *p_v = p_source->V_PIXELS;
 165
 166     int i_x, i_y;
 167
 168 #if defined (MODULE_NAME_IS_i420_yuy2_altivec)
 169 #define VEC_NEXT_LINES( ) \
 170     p_line1  = p_line2; \
 171     p_line2 += p_dest->p->i_pitch; \
 172     p_y1     = p_y2; \
 173     p_y2    += p_source->p[Y_PLANE].i_pitch;
 174
 175 #define VEC_LOAD_UV( ) \
 176     u_vec = vec_ld( 0, p_u ); p_u += 16; \
 177     v_vec = vec_ld( 0, p_v ); p_v += 16;
 178
 179 #define VEC_MERGE( a ) \
 180     uv_vec = a( u_vec, v_vec ); \
 181     y_vec = vec_ld( 0, p_y1 ); p_y1 += 16; \
 182     vec_st( vec_mergeh( y_vec, uv_vec ), 0, p_line1 ); p_line1 += 16; \
 183     vec_st( vec_mergel( y_vec, uv_vec ), 0, p_line1 ); p_line1 += 16; \
 184     y_vec = vec_ld( 0, p_y2 ); p_y2 += 16; \
 185     vec_st( vec_mergeh( y_vec, uv_vec ), 0, p_line2 ); p_line2 += 16; \
 186     vec_st( vec_mergel( y_vec, uv_vec ), 0, p_line2 ); p_line2 += 16;
 187
 188     vector unsigned char u_vec;
 189     vector unsigned char v_vec;
 190     vector unsigned char uv_vec;
 191     vector unsigned char y_vec;
 192
 193     if( !( ( p_vout->render.i_width % 32 ) |
 194            ( p_vout->render.i_height % 2 ) ) )
 195     {
 196         /* Width is a multiple of 32, we take 2 lines at a time */
 197         for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 198         {
 199             VEC_NEXT_LINES( );
 200             for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
 201             {
 202                 VEC_LOAD_UV( );
 203                 VEC_MERGE( vec_mergeh );
 204                 VEC_MERGE( vec_mergel );
 205             }
 206         }
 207     }
 208     else if( !( ( p_vout->render.i_width % 16 ) |
 209                 ( p_vout->render.i_height % 4 ) ) )
 210     {
 211         /* Width is only a multiple of 16, we take 4 lines at a time */
 212         for( i_y = p_vout->render.i_height / 4 ; i_y-- ; )
 213         {
 214             /* Line 1 and 2, pixels 0 to ( width - 16 ) */
 215             VEC_NEXT_LINES( );
 216             for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
 217             {
 218                 VEC_LOAD_UV( );
 219                 VEC_MERGE( vec_mergeh );
 220                 VEC_MERGE( vec_mergel );
 221             }
 222
 223             /* Line 1 and 2, pixels ( width - 16 ) to ( width ) */
 224             VEC_LOAD_UV( );
 225             VEC_MERGE( vec_mergeh );
 226
 227             /* Line 3 and 4, pixels 0 to 16 */
 228             VEC_NEXT_LINES( );
 229             VEC_MERGE( vec_mergel );
 230
 231             /* Line 3 and 4, pixels 16 to ( width ) */
 232             for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
 233             {
 234                 VEC_LOAD_UV( );
 235                 VEC_MERGE( vec_mergeh );
 236                 VEC_MERGE( vec_mergel );
 237             }
 238         }
 239     }
 240     else
 241     {
 242         /* Crap, use the C version */
 243 #undef VEC_NEXT_LINES
 244 #undef VEC_LOAD_UV
 245 #undef VEC_MERGE
 246 #endif
 247
 248     const int i_source_margin = p_source->p->i_pitch
 249                                  - p_source->p->i_visible_pitch;
 250     const int i_dest_margin = p_dest->p->i_pitch
 251                                - p_dest->p->i_visible_pitch;
 252
 253     for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 254     {
 255         p_line1 = p_line2;
 256         p_line2 += p_dest->p->i_pitch;
 257
 258         p_y1 = p_y2;
 259         p_y2 += p_source->p[Y_PLANE].i_pitch;
 260
 261         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 262         {
 263 #if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
 264             C_YUV420_YUYV( );
 265             C_YUV420_YUYV( );
 266             C_YUV420_YUYV( );
 267             C_YUV420_YUYV( );
 268 #else
 269             MMX_CALL( MMX_YUV420_YUYV );
 270 #endif
 271         }
 272
 273         p_y1 += i_source_margin;
 274         p_y2 += i_source_margin;
 275         p_line1 += i_dest_margin;
 276         p_line2 += i_dest_margin;
 277     }
 278
 279 #if defined (MODULE_NAME_IS_i420_yuy2_altivec)
 280     }
 281 #endif
 282 }
 283
 284 /*****************************************************************************
 285  * I420_YVYU: planar YUV 4:2:0 to packed YVYU 4:2:2
 286  *****************************************************************************/
 287 #if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
 288 static void I420_YVYU( vout_thread_t *p_vout, picture_t *p_source,
 289                                               picture_t *p_dest )
 290 {
 291     uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
 292     uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
 293     uint8_t *p_u = p_source->U_PIXELS;
 294     uint8_t *p_v = p_source->V_PIXELS;
 295
 296     int i_x, i_y;
 297
 298     const int i_source_margin = p_source->p->i_pitch
 299                                  - p_source->p->i_visible_pitch;
 300     const int i_dest_margin = p_dest->p->i_pitch
 301                                - p_dest->p->i_visible_pitch;
 302
 303     for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 304     {
 305         p_line1 = p_line2;
 306         p_line2 += p_dest->p->i_pitch;
 307
 308         p_y1 = p_y2;
 309         p_y2 += p_source->p[Y_PLANE].i_pitch;
 310
 311         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 312         {
 313 #if defined (MODULE_NAME_IS_i420_yuy2)
 314             C_YUV420_YVYU( );
 315             C_YUV420_YVYU( );
 316             C_YUV420_YVYU( );
 317             C_YUV420_YVYU( );
 318 #else
 319             MMX_CALL( MMX_YUV420_YVYU );
 320 #endif
 321         }
 322
 323         p_y1 += i_source_margin;
 324         p_y2 += i_source_margin;
 325         p_line1 += i_dest_margin;
 326         p_line2 += i_dest_margin;
 327     }
 328 }
 329
 330 /*****************************************************************************
 331  * I420_UYVY: planar YUV 4:2:0 to packed UYVY 4:2:2
 332  *****************************************************************************/
 333 static void I420_UYVY( vout_thread_t *p_vout, picture_t *p_source,
 334                                               picture_t *p_dest )
 335 {
 336     uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
 337     uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
 338     uint8_t *p_u = p_source->U_PIXELS;
 339     uint8_t *p_v = p_source->V_PIXELS;
 340
 341     int i_x, i_y;
 342
 343     const int i_source_margin = p_source->p->i_pitch
 344                                  - p_source->p->i_visible_pitch;
 345     const int i_dest_margin = p_dest->p->i_pitch
 346                                - p_dest->p->i_visible_pitch;
 347
 348     for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 349     {
 350         p_line1 = p_line2;
 351         p_line2 += p_dest->p->i_pitch;
 352
 353         p_y1 = p_y2;
 354         p_y2 += p_source->p[Y_PLANE].i_pitch;
 355
 356         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 357         {
 358 #if defined (MODULE_NAME_IS_i420_yuy2)
 359             C_YUV420_UYVY( );
 360             C_YUV420_UYVY( );
 361             C_YUV420_UYVY( );
 362             C_YUV420_UYVY( );
 363 #else
 364             MMX_CALL( MMX_YUV420_UYVY );
 365 #endif
 366         }
 367
 368         p_y1 += i_source_margin;
 369         p_y2 += i_source_margin;
 370         p_line1 += i_dest_margin;
 371         p_line2 += i_dest_margin;
 372     }
 373 }
 374
 375 /*****************************************************************************
 376  * I420_IUYV: planar YUV 4:2:0 to interleaved packed UYVY 4:2:2
 377  *****************************************************************************/
 378 static void I420_IUYV( vout_thread_t *p_vout, picture_t *p_source,
 379                                               picture_t *p_dest )
 380 {
 381     /* FIXME: TODO ! */
 382     msg_Err( p_vout, "I420_IUYV unimplemented, please harass <sam@zoy.org>" );
 383 }
 384
 385 /*****************************************************************************
 386  * I420_cyuv: planar YUV 4:2:0 to upside-down packed UYVY 4:2:2
 387  *****************************************************************************/
 388 static void I420_cyuv( vout_thread_t *p_vout, picture_t *p_source,
 389                                               picture_t *p_dest )
 390 {
 391     uint8_t *p_line1 = p_dest->p->p_pixels +
 392                        p_dest->p->i_lines * p_dest->p->i_pitch
 393                        + p_dest->p->i_pitch;
 394     uint8_t *p_line2 = p_dest->p->p_pixels +
 395                        p_dest->p->i_lines * p_dest->p->i_pitch;
 396     uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
 397     uint8_t *p_u = p_source->U_PIXELS;
 398     uint8_t *p_v = p_source->V_PIXELS;
 399
 400     int i_x, i_y;
 401
 402     const int i_source_margin = p_source->p->i_pitch
 403                                  - p_source->p->i_visible_pitch;
 404     const int i_dest_margin = p_dest->p->i_pitch
 405                                - p_dest->p->i_visible_pitch;
 406
 407     for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 408     {
 409         p_line1 -= 3 * p_dest->p->i_pitch;
 410         p_line2 -= 3 * p_dest->p->i_pitch;
 411
 412         p_y1 = p_y2;
 413         p_y2 += p_source->p[Y_PLANE].i_pitch;
 414
 415         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 416         {
 417 #if defined (MODULE_NAME_IS_i420_yuy2)
 418             C_YUV420_UYVY( );
 419             C_YUV420_UYVY( );
 420             C_YUV420_UYVY( );
 421             C_YUV420_UYVY( );
 422 #else
 423             MMX_CALL( MMX_YUV420_UYVY );
 424 #endif
 425         }
 426
 427         p_y1 += i_source_margin;
 428         p_y2 += i_source_margin;
 429         p_line1 += i_dest_margin;
 430         p_line2 += i_dest_margin;
 431     }
 432 }
 433 #endif // !defined (MODULE_NAME_IS_i420_yuy2_altivec)
 434
 435 /*****************************************************************************
 436  * I420_Y211: planar YUV 4:2:0 to packed YUYV 2:1:1
 437  *****************************************************************************/
 438 #if defined (MODULE_NAME_IS_i420_yuy2)
 439 static void I420_Y211( vout_thread_t *p_vout, picture_t *p_source,
 440                                               picture_t *p_dest )
 441 {
 442     uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
 443     uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
 444     uint8_t *p_u = p_source->U_PIXELS;
 445     uint8_t *p_v = p_source->V_PIXELS;
 446
 447     int i_x, i_y;
 448
 449     const int i_source_margin = p_source->p->i_pitch
 450                                  - p_source->p->i_visible_pitch;
 451     const int i_dest_margin = p_dest->p->i_pitch
 452                                - p_dest->p->i_visible_pitch;
 453
 454     for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
 455     {
 456         p_line1 = p_line2;
 457         p_line2 += p_dest->p->i_pitch;
 458
 459         p_y1 = p_y2;
 460         p_y2 += p_source->p[Y_PLANE].i_pitch;
 461
 462         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 463         {
 464             C_YUV420_Y211( );
 465             C_YUV420_Y211( );
 466         }
 467
 468         p_y1 += i_source_margin;
 469         p_y2 += i_source_margin;
 470         p_line1 += i_dest_margin;
 471         p_line2 += i_dest_margin;
 472     }
 473 }
 474 #endif
 475