git.sesse.net Git - vlc/blob - modules/video_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 2002/08/04 17:23:43 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 <errno.h>                                                 /* ENOMEM */
  28 #include <string.h>                                            /* strerror() */
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/vout.h>
  33
  34 #include "i422_yuy2.h"
  35
  36 #define SRC_FOURCC  "I422"
  37 #if defined (MODULE_NAME_IS_i422_yuy2)
  38 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
  39 #else
  40 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
  41 #endif
  42
  43 /*****************************************************************************
  44  * Local and extern prototypes.
  45  *****************************************************************************/
  46 static int  Activate ( vlc_object_t * );
  47
  48 static void I422_YUY2           ( vout_thread_t *, picture_t *, picture_t * );
  49 static void I422_YVYU           ( vout_thread_t *, picture_t *, picture_t * );
  50 static void I422_UYVY           ( vout_thread_t *, picture_t *, picture_t * );
  51 static void I422_IUYV           ( vout_thread_t *, picture_t *, picture_t * );
  52 static void I422_cyuv           ( vout_thread_t *, picture_t *, picture_t * );
  53 #if defined (MODULE_NAME_IS_i422_yuy2)
  54 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
  55 #endif
  56
  57 /*****************************************************************************
  58  * Module descriptor
  59  *****************************************************************************/
  60 vlc_module_begin();
  61 #if defined (MODULE_NAME_IS_i422_yuy2)
  62     set_description( _("conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  63     set_capability( "chroma", 80 );
  64 #elif defined (MODULE_NAME_IS_i422_yuy2_mmx)
  65     set_description( _("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  66     set_capability( "chroma", 100 );
  67     add_requirement( MMX );
  68 #endif
  69     set_callbacks( Activate, NULL );
  70 vlc_module_end();
  71
  72 /*****************************************************************************
  73  * Activate: allocate a chroma function
  74  *****************************************************************************
  75  * This function allocates and initializes a chroma function
  76  *****************************************************************************/
  77 static int Activate( vlc_object_t *p_this )
  78 {
  79     vout_thread_t *p_vout = (vout_thread_t *)p_this;
  80
  81     if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
  82     {
  83         return -1;
  84     }
  85
  86     switch( p_vout->render.i_chroma )
  87     {
  88         case VLC_FOURCC('I','4','2','2'):
  89             switch( p_vout->output.i_chroma )
  90             {
  91                 case VLC_FOURCC('Y','U','Y','2'):
  92                 case VLC_FOURCC('Y','U','N','V'):
  93                     p_vout->chroma.pf_convert = I422_YUY2;
  94                     break;
  95
  96                 case VLC_FOURCC('Y','V','Y','U'):
  97                     p_vout->chroma.pf_convert = I422_YVYU;
  98                     break;
  99
 100                 case VLC_FOURCC('U','Y','V','Y'):
 101                 case VLC_FOURCC('U','Y','N','V'):
 102                 case VLC_FOURCC('Y','4','2','2'):
 103                     p_vout->chroma.pf_convert = I422_UYVY;
 104                     break;
 105
 106                 case VLC_FOURCC('I','U','Y','V'):
 107                     p_vout->chroma.pf_convert = I422_IUYV;
 108                     break;
 109
 110                 case VLC_FOURCC('c','y','u','v'):
 111                     p_vout->chroma.pf_convert = I422_cyuv;
 112                     break;
 113
 114 #if defined (MODULE_NAME_IS_i422_yuy2)
 115                 case VLC_FOURCC('Y','2','1','1'):
 116                     p_vout->chroma.pf_convert = I422_Y211;
 117                     break;
 118 #endif
 119
 120                 default:
 121                     return -1;
 122             }
 123             break;
 124
 125         default:
 126             return -1;
 127     }
 128
 129     return 0;
 130 }
 131
 132 /* Following functions are local */
 133
 134 /*****************************************************************************
 135  * I422_YUY2: planar YUV 4:2:2 to packed YUY2 4:2:2
 136  *****************************************************************************/
 137 static void I422_YUY2( vout_thread_t *p_vout, picture_t *p_source,
 138                                               picture_t *p_dest )
 139 {
 140     u8 *p_line = p_dest->p->p_pixels;
 141     u8 *p_y = p_source->Y_PIXELS;
 142     u8 *p_u = p_source->U_PIXELS;
 143     u8 *p_v = p_source->V_PIXELS;
 144
 145     int i_x, i_y;
 146
 147     for( i_y = p_vout->render.i_height ; i_y-- ; )
 148     {
 149         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 150         {
 151 #if defined (MODULE_NAME_IS_i422_yuy2)
 152             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 153             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 154             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 155             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 156 #else
 157             __asm__( ".align 8" MMX_YUV422_YUYV
 158                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 159
 160             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 161
 162             __asm__( ".align 8" MMX_YUV422_YUYV
 163                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 164
 165             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 166 #endif
 167         }
 168     }
 169 }
 170
 171 /*****************************************************************************
 172  * I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
 173  *****************************************************************************/
 174 static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
 175                                               picture_t *p_dest )
 176 {
 177     u8 *p_line = p_dest->p->p_pixels;
 178     u8 *p_y = p_source->Y_PIXELS;
 179     u8 *p_u = p_source->U_PIXELS;
 180     u8 *p_v = p_source->V_PIXELS;
 181
 182     int i_x, i_y;
 183
 184     for( i_y = p_vout->render.i_height ; i_y-- ; )
 185     {
 186         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 187         {
 188 #if defined (MODULE_NAME_IS_i422_yuy2)
 189             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 190             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 191             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 192             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 193 #else
 194             __asm__( ".align 8" MMX_YUV422_YVYU
 195                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 196
 197             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 198
 199             __asm__( ".align 8" MMX_YUV422_YVYU
 200                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 201
 202             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 203 #endif
 204         }
 205     }
 206 }
 207
 208 /*****************************************************************************
 209  * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
 210  *****************************************************************************/
 211 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
 212                                               picture_t *p_dest )
 213 {
 214     u8 *p_line = p_dest->p->p_pixels;
 215     u8 *p_y = p_source->Y_PIXELS;
 216     u8 *p_u = p_source->U_PIXELS;
 217     u8 *p_v = p_source->V_PIXELS;
 218
 219     int i_x, i_y;
 220
 221     for( i_y = p_vout->render.i_height ; i_y-- ; )
 222     {
 223         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 224         {
 225 #if defined (MODULE_NAME_IS_i422_yuy2)
 226             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 227             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 228             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 229             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 230 #else
 231             __asm__( ".align 8" MMX_YUV422_UYVY
 232                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 233
 234             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 235
 236             __asm__( ".align 8" MMX_YUV422_UYVY
 237                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 238
 239             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 240 #endif
 241         }
 242     }
 243 }
 244
 245 /*****************************************************************************
 246  * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
 247  *****************************************************************************/
 248 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
 249                                               picture_t *p_dest )
 250 {
 251     /* FIXME: TODO ! */
 252     msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
 253 }
 254
 255 /*****************************************************************************
 256  * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
 257  *****************************************************************************/
 258 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
 259                                               picture_t *p_dest )
 260 {
 261     u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
 262     u8 *p_y = p_source->Y_PIXELS;
 263     u8 *p_u = p_source->U_PIXELS;
 264     u8 *p_v = p_source->V_PIXELS;
 265
 266     int i_x, i_y;
 267
 268     for( i_y = p_vout->render.i_height ; i_y-- ; )
 269     {
 270         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 271         {
 272             p_line -= 2 * p_dest->p->i_pitch;
 273
 274 #if defined (MODULE_NAME_IS_i422_yuy2)
 275             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 276             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 277             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 278             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 279 #else
 280             __asm__( ".align 8" MMX_YUV422_UYVY
 281                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 282
 283             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 284
 285             __asm__( ".align 8" MMX_YUV422_UYVY
 286                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 287
 288             p_line += 8; p_y += 4; p_u += 2; p_v += 2;
 289 #endif
 290         }
 291     }
 292 }
 293
 294 /*****************************************************************************
 295  * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
 296  *****************************************************************************/
 297 #if defined (MODULE_NAME_IS_i422_yuy2)
 298 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
 299                                               picture_t *p_dest )
 300 {
 301     u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
 302     u8 *p_y = p_source->Y_PIXELS;
 303     u8 *p_u = p_source->U_PIXELS;
 304     u8 *p_v = p_source->V_PIXELS;
 305
 306     int i_x, i_y;
 307
 308     for( i_y = p_vout->render.i_height ; i_y-- ; )
 309     {
 310         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 311         {
 312             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 313             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 314         }
 315     }
 316 }
 317 #endif
 318