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 the VideoLAN team
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, 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 "i422_yuy2.h"
  34
  35 #define SRC_FOURCC  "I422"
  36 #if defined (MODULE_NAME_IS_i422_yuy2)
  37 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
  38 #else
  39 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
  40 #endif
  41
  42 /*****************************************************************************
  43  * Local and extern prototypes.
  44  *****************************************************************************/
  45 static int  Activate ( vlc_object_t * );
  46
  47 static void I422_YUY2           ( vout_thread_t *, picture_t *, picture_t * );
  48 static void I422_YVYU           ( vout_thread_t *, picture_t *, picture_t * );
  49 static void I422_UYVY           ( vout_thread_t *, picture_t *, picture_t * );
  50 static void I422_IUYV           ( vout_thread_t *, picture_t *, picture_t * );
  51 static void I422_cyuv           ( vout_thread_t *, picture_t *, picture_t * );
  52 #if defined (MODULE_NAME_IS_i422_yuy2)
  53 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
  54 static void I422_Y211           ( vout_thread_t *, picture_t *, picture_t * );
  55 static void I422_YV12           ( vout_thread_t *, picture_t *, picture_t * );
  56 #endif
  57
  58 /*****************************************************************************
  59  * Module descriptor
  60  *****************************************************************************/
  61 vlc_module_begin();
  62 #if defined (MODULE_NAME_IS_i422_yuy2)
  63     set_description( _("Conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  64     set_capability( "chroma", 80 );
  65 #elif defined (MODULE_NAME_IS_i422_yuy2_mmx)
  66     set_description( _("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) );
  67     set_capability( "chroma", 100 );
  68     add_requirement( MMX );
  69 #endif
  70     set_callbacks( Activate, NULL );
  71 vlc_module_end();
  72
  73 /*****************************************************************************
  74  * Activate: allocate a chroma function
  75  *****************************************************************************
  76  * This function allocates and initializes a chroma function
  77  *****************************************************************************/
  78 static int Activate( vlc_object_t *p_this )
  79 {
  80     vout_thread_t *p_vout = (vout_thread_t *)p_this;
  81
  82     if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
  83     {
  84         return -1;
  85     }
  86
  87     switch( p_vout->render.i_chroma )
  88     {
  89         case VLC_FOURCC('I','4','2','2'):
  90             switch( p_vout->output.i_chroma )
  91             {
  92                 case VLC_FOURCC('Y','U','Y','2'):
  93                 case VLC_FOURCC('Y','U','N','V'):
  94                     p_vout->chroma.pf_convert = I422_YUY2;
  95                     break;
  96
  97                 case VLC_FOURCC('Y','V','Y','U'):
  98                     p_vout->chroma.pf_convert = I422_YVYU;
  99                     break;
 100
 101                 case VLC_FOURCC('U','Y','V','Y'):
 102                 case VLC_FOURCC('U','Y','N','V'):
 103                 case VLC_FOURCC('Y','4','2','2'):
 104                     p_vout->chroma.pf_convert = I422_UYVY;
 105                     break;
 106
 107                 case VLC_FOURCC('I','U','Y','V'):
 108                     p_vout->chroma.pf_convert = I422_IUYV;
 109                     break;
 110
 111                 case VLC_FOURCC('c','y','u','v'):
 112                     p_vout->chroma.pf_convert = I422_cyuv;
 113                     break;
 114
 115 #if defined (MODULE_NAME_IS_i422_yuy2)
 116                 case VLC_FOURCC('Y','2','1','1'):
 117                     p_vout->chroma.pf_convert = I422_Y211;
 118                     break;
 119
 120                 case VLC_FOURCC('Y','V','1','2'):
 121                     p_vout->chroma.pf_convert = I422_YV12;
 122                     break;
 123 #endif
 124
 125                 default:
 126                     return -1;
 127             }
 128             break;
 129
 130         default:
 131             return -1;
 132     }
 133
 134     return 0;
 135 }
 136
 137 /* Following functions are local */
 138
 139 /*****************************************************************************
 140  * I422_YUY2: planar YUV 4:2:2 to packed YUY2 4:2:2
 141  *****************************************************************************/
 142 static void I422_YUY2( vout_thread_t *p_vout, picture_t *p_source,
 143                                               picture_t *p_dest )
 144 {
 145     uint8_t *p_line = p_dest->p->p_pixels;
 146     uint8_t *p_y = p_source->Y_PIXELS;
 147     uint8_t *p_u = p_source->U_PIXELS;
 148     uint8_t *p_v = p_source->V_PIXELS;
 149
 150     int i_x, i_y;
 151
 152     for( i_y = p_vout->render.i_height ; i_y-- ; )
 153     {
 154         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 155         {
 156 #if defined (MODULE_NAME_IS_i422_yuy2)
 157             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 158             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 159             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 160             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 161 #else
 162             __asm__( ".p2align 3" MMX_YUV422_YUYV
 163                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 164
 165             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 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     uint8_t *p_line = p_dest->p->p_pixels;
 178     uint8_t *p_y = p_source->Y_PIXELS;
 179     uint8_t *p_u = p_source->U_PIXELS;
 180     uint8_t *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__( ".p2align 3" MMX_YUV422_YVYU
 195                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 196
 197             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 198 #endif
 199         }
 200     }
 201 }
 202
 203 /*****************************************************************************
 204  * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
 205  *****************************************************************************/
 206 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
 207                                               picture_t *p_dest )
 208 {
 209     uint8_t *p_line = p_dest->p->p_pixels;
 210     uint8_t *p_y = p_source->Y_PIXELS;
 211     uint8_t *p_u = p_source->U_PIXELS;
 212     uint8_t *p_v = p_source->V_PIXELS;
 213
 214     int i_x, i_y;
 215
 216     for( i_y = p_vout->render.i_height ; i_y-- ; )
 217     {
 218         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 219         {
 220 #if defined (MODULE_NAME_IS_i422_yuy2)
 221             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 222             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 223             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 224             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 225 #else
 226             __asm__( ".p2align 3" MMX_YUV422_UYVY
 227                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 228
 229             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 230 #endif
 231         }
 232     }
 233 }
 234
 235 /*****************************************************************************
 236  * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
 237  *****************************************************************************/
 238 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
 239                                               picture_t *p_dest )
 240 {
 241     /* FIXME: TODO ! */
 242     msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
 243 }
 244
 245 /*****************************************************************************
 246  * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
 247  *****************************************************************************/
 248 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
 249                                               picture_t *p_dest )
 250 {
 251     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
 252     uint8_t *p_y = p_source->Y_PIXELS;
 253     uint8_t *p_u = p_source->U_PIXELS;
 254     uint8_t *p_v = p_source->V_PIXELS;
 255
 256     int i_x, i_y;
 257
 258     for( i_y = p_vout->render.i_height ; i_y-- ; )
 259     {
 260         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 261         {
 262             p_line -= 2 * p_dest->p->i_pitch;
 263
 264 #if defined (MODULE_NAME_IS_i422_yuy2)
 265             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 266             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 267             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 268             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 269 #else
 270             __asm__( ".p2align 3" MMX_YUV422_UYVY
 271                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 272
 273             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 274 #endif
 275         }
 276     }
 277 }
 278
 279 /*****************************************************************************
 280  * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
 281  *****************************************************************************/
 282 #if defined (MODULE_NAME_IS_i422_yuy2)
 283 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
 284                                               picture_t *p_dest )
 285 {
 286     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
 287     uint8_t *p_y = p_source->Y_PIXELS;
 288     uint8_t *p_u = p_source->U_PIXELS;
 289     uint8_t *p_v = p_source->V_PIXELS;
 290
 291     int i_x, i_y;
 292
 293     for( i_y = p_vout->render.i_height ; i_y-- ; )
 294     {
 295         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 296         {
 297             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 298             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 299         }
 300     }
 301 }
 302 #endif
 303
 304
 305 /*****************************************************************************
 306  * I422_YV12: planar YUV 4:2:2 to planar YV12
 307  *****************************************************************************/
 308 #if defined (MODULE_NAME_IS_i422_yuy2)
 309 static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
 310                                               picture_t *p_dest )
 311 {
 312     uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
 313     uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
 314     uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
 315     uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
 316     uint16_t i_width = p_vout->render.i_width;
 317     uint16_t i_y = p_vout->render.i_height;
 318     uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
 319     uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
 320     uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
 321     uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
 322     uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
 323     uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
 324     i_y /= 2;
 325
 326     for ( ; i_y--; )
 327     {
 328         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
 329         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
 330         memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
 331         memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
 332     }
 333
 334 }
 335 #endif