git.sesse.net Git - vlc/blob - plugins/chroma/i422_yuy2.c

   1 /*****************************************************************************
   2  * i422_yuy2.c : YUV to YUV conversion module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001 VideoLAN
   5  * $Id: i422_yuy2.c,v 1.1 2002/01/04 14:01:34 sam Exp $
   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 <math.h>                                            /* exp(), pow() */
  28 #include <errno.h>                                                 /* ENOMEM */
  29 #include <string.h>                                            /* strerror() */
  30 #include <stdlib.h>                                      /* malloc(), free() */
  31
  32 #include <videolan/vlc.h>
  33
  34 #include "video.h"
  35 #include "video_output.h"
  36
  37 #include "i422_yuy2.h"
  38
  39 #define SRC_FOURCC  "I422"
  40 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
  41 #    define DEST_FOURCC "YUY2/YUNV/YVYU/UYVY/UYNV/Y422/IUYV/cyuv/Y211"
  42 #else
  43 #    define DEST_FOURCC "YUY2/YUNV/YVYU/UYVY/UYNV/Y422/IUYV/cyuv"
  44 #endif
  45
  46 /*****************************************************************************
  47  * Local and extern prototypes.
  48  *****************************************************************************/
  49 static void chroma_getfunctions ( function_list_t * p_function_list );
  50
  51 static int  chroma_Probe        ( probedata_t *p_data );
  52 static int  chroma_Init         ( vout_thread_t *p_vout );
  53 static void chroma_End          ( vout_thread_t *p_vout );
  54
  55 static void I422_YUY2           ( vout_thread_t *, picture_t *, picture_t * );
  56 static void I422_YVYU           ( vout_thread_t *, picture_t *, picture_t * );
  57 static void I422_UYVY           ( vout_thread_t *, picture_t *, picture_t * );
  58 static void I422_IUYV           ( vout_thread_t *, picture_t *, picture_t * );
  59 static void I422_cyuv           ( vout_thread_t *, picture_t *, picture_t * );
  60 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
  61 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
  62 #endif
  63
  64 /*****************************************************************************
  65  * Build configuration tree.
  66  *****************************************************************************/
  67 MODULE_CONFIG_START
  68 MODULE_CONFIG_STOP
  69
  70 MODULE_INIT_START
  71 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
  72     SET_DESCRIPTION( "conversions from " SRC_FOURCC " to " DEST_FOURCC )
  73     ADD_CAPABILITY( CHROMA, 80 )
  74 #elif defined (MODULE_NAME_IS_chroma_i422_yuy2_mmx)
  75     SET_DESCRIPTION( "MMX conversions from " SRC_FOURCC " to " DEST_FOURCC )
  76     ADD_CAPABILITY( CHROMA, 100 )
  77     ADD_REQUIREMENT( MMX )
  78 #endif
  79 MODULE_INIT_STOP
  80
  81 MODULE_ACTIVATE_START
  82     chroma_getfunctions( &p_module->p_functions->chroma );
  83 MODULE_ACTIVATE_STOP
  84
  85 MODULE_DEACTIVATE_START
  86 MODULE_DEACTIVATE_STOP
  87
  88 /*****************************************************************************
  89  * Functions exported as capabilities. They are declared as static so that
  90  * we don't pollute the namespace too much.
  91  *****************************************************************************/
  92 static void chroma_getfunctions( function_list_t * p_function_list )
  93 {
  94     p_function_list->pf_probe = chroma_Probe;
  95     p_function_list->functions.chroma.pf_init = chroma_Init;
  96     p_function_list->functions.chroma.pf_end  = chroma_End;
  97 }
  98
  99 /*****************************************************************************
 100  * chroma_Probe: return a score
 101  *****************************************************************************
 102  * This function checks that we can handle the required data
 103  *****************************************************************************/
 104 static int chroma_Probe( probedata_t *p_data )
 105 {
 106     if( p_data->chroma.p_render->i_width & 1
 107          || p_data->chroma.p_render->i_height & 1 )
 108     {
 109         return 0;
 110     }
 111
 112     switch( p_data->chroma.p_render->i_chroma )
 113     {
 114         case FOURCC_I422:
 115             switch( p_data->chroma.p_output->i_chroma )
 116             {
 117                 case FOURCC_YUY2:
 118                 case FOURCC_YUNV:
 119                     break;
 120
 121                 case FOURCC_YVYU:
 122                     break;
 123
 124                 case FOURCC_UYVY:
 125                 case FOURCC_UYNV:
 126                 case FOURCC_Y422:
 127                     break;
 128
 129                 case FOURCC_IUYV:
 130                     break;
 131
 132                 case FOURCC_cyuv:
 133                     break;
 134
 135 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 136                 case FOURCC_Y211:
 137                     break;
 138 #endif
 139
 140                 default:
 141                     return 0;
 142             }
 143             break;
 144
 145         default:
 146             return 0;
 147     }
 148
 149     return 100;
 150 }
 151
 152 /*****************************************************************************
 153  * chroma_Init: allocate a chroma function
 154  *****************************************************************************
 155  * This function allocates and initializes a chroma function
 156  *****************************************************************************/
 157 static int chroma_Init( vout_thread_t *p_vout )
 158 {
 159     if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
 160     {
 161         return -1;
 162     }
 163
 164     switch( p_vout->render.i_chroma )
 165     {
 166         case FOURCC_I422:
 167             switch( p_vout->output.i_chroma )
 168             {
 169                 case FOURCC_YUY2:
 170                 case FOURCC_YUNV:
 171                     p_vout->chroma.pf_convert = I422_YUY2;
 172                     break;
 173
 174                 case FOURCC_YVYU:
 175                     p_vout->chroma.pf_convert = I422_YVYU;
 176                     break;
 177
 178                 case FOURCC_UYVY:
 179                 case FOURCC_UYNV:
 180                 case FOURCC_Y422:
 181                     p_vout->chroma.pf_convert = I422_UYVY;
 182                     break;
 183
 184                 case FOURCC_IUYV:
 185                     p_vout->chroma.pf_convert = I422_IUYV;
 186                     break;
 187
 188                 case FOURCC_cyuv:
 189                     p_vout->chroma.pf_convert = I422_cyuv;
 190                     break;
 191
 192 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 193                 case FOURCC_Y211:
 194                     p_vout->chroma.pf_convert = I422_Y211;
 195                     break;
 196 #endif
 197
 198                 default:
 199                     return -1;
 200             }
 201             break;
 202
 203         default:
 204             return -1;
 205     }
 206
 207     return 0;
 208 }
 209
 210 /*****************************************************************************
 211  * chroma_End: free the chroma function
 212  *****************************************************************************
 213  * This function frees the previously allocated chroma function
 214  *****************************************************************************/
 215 static void chroma_End( vout_thread_t *p_vout )
 216 {
 217     ;
 218 }
 219
 220 /* Following functions are local */
 221
 222 /*****************************************************************************
 223  * I422_YUY2: planar YUV 4:2:2 to packed YUY2 4:2:2
 224  *****************************************************************************/
 225 static void I422_YUY2( vout_thread_t *p_vout, picture_t *p_source,
 226                                               picture_t *p_dest )
 227 {
 228     u8 *p_line = p_dest->p->p_pixels;
 229     u8 *p_y = p_source->Y_PIXELS;
 230     u8 *p_u = p_source->U_PIXELS;
 231     u8 *p_v = p_source->V_PIXELS;
 232
 233     int i_x, i_y;
 234
 235     for( i_y = p_vout->render.i_height ; i_y-- ; )
 236     {
 237         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 238         {
 239 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 240             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 241             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 242             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 243             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 244 #else
 245             __asm__( ".align 8" MMX_YUV422_YUYV
 246                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 247
 248             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 249
 250             __asm__( ".align 8" MMX_YUV422_YUYV
 251                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 252
 253             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 254 #endif
 255         }
 256     }
 257 }
 258
 259 /*****************************************************************************
 260  * I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
 261  *****************************************************************************/
 262 static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
 263                                               picture_t *p_dest )
 264 {
 265     u8 *p_line = p_dest->p->p_pixels;
 266     u8 *p_y = p_source->Y_PIXELS;
 267     u8 *p_u = p_source->U_PIXELS;
 268     u8 *p_v = p_source->V_PIXELS;
 269
 270     int i_x, i_y;
 271
 272     for( i_y = p_vout->render.i_height ; i_y-- ; )
 273     {
 274         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 275         {
 276 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 277             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 278             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 279             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 280             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 281 #else
 282             __asm__( ".align 8" MMX_YUV422_YVYU
 283                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 284
 285             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 286
 287             __asm__( ".align 8" MMX_YUV422_YVYU
 288                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 289
 290             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 291 #endif
 292         }
 293     }
 294 }
 295
 296 /*****************************************************************************
 297  * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
 298  *****************************************************************************/
 299 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
 300                                               picture_t *p_dest )
 301 {
 302     u8 *p_line = p_dest->p->p_pixels;
 303     u8 *p_y = p_source->Y_PIXELS;
 304     u8 *p_u = p_source->U_PIXELS;
 305     u8 *p_v = p_source->V_PIXELS;
 306
 307     int i_x, i_y;
 308
 309     for( i_y = p_vout->render.i_height ; i_y-- ; )
 310     {
 311         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 312         {
 313 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 314             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 315             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 316             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 317             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 318 #else
 319             __asm__( ".align 8" MMX_YUV422_UYVY
 320                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 321
 322             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 323
 324             __asm__( ".align 8" MMX_YUV422_UYVY
 325                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 326
 327             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 328 #endif
 329         }
 330     }
 331 }
 332
 333 /*****************************************************************************
 334  * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
 335  *****************************************************************************/
 336 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
 337                                               picture_t *p_dest )
 338 {
 339     /* FIXME: TODO ! */
 340     intf_ErrMsg( "chroma error: I422_IUYV unimplemented, "
 341                  "please harass <sam@zoy.org>" );
 342 }
 343
 344 /*****************************************************************************
 345  * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
 346  *****************************************************************************/
 347 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
 348                                               picture_t *p_dest )
 349 {
 350     u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
 351     u8 *p_y = p_source->Y_PIXELS;
 352     u8 *p_u = p_source->U_PIXELS;
 353     u8 *p_v = p_source->V_PIXELS;
 354
 355     int i_x, i_y;
 356
 357     for( i_y = p_vout->render.i_height ; i_y-- ; )
 358     {
 359         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 360         {
 361             p_line -= 2 * p_dest->p->i_pitch;
 362
 363 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 364             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 365             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 366             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 367             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 368 #else
 369             __asm__( ".align 8" MMX_YUV422_UYVY
 370                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 371
 372             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 373
 374             __asm__( ".align 8" MMX_YUV422_UYVY
 375                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 376
 377             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 378 #endif
 379         }
 380     }
 381 }
 382
 383 /*****************************************************************************
 384  * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
 385  *****************************************************************************/
 386 #if defined (MODULE_NAME_IS_chroma_i422_yuy2)
 387 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
 388                                               picture_t *p_dest )
 389 {
 390     u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
 391     u8 *p_y = p_source->Y_PIXELS;
 392     u8 *p_u = p_source->U_PIXELS;
 393     u8 *p_v = p_source->V_PIXELS;
 394
 395     int i_x, i_y;
 396
 397     for( i_y = p_vout->render.i_height ; i_y-- ; )
 398     {
 399         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 400         {
 401             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 402             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 403         }
 404     }
 405 }
 406 #endif
 407