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_pixels = p_dest->p->p_pixels;
 146     int      i_pitch  = p_dest->p->i_pitch;
 147     uint8_t *p_y = p_source->Y_PIXELS;
 148     uint8_t *p_u = p_source->U_PIXELS;
 149     uint8_t *p_v = p_source->V_PIXELS;
 150
 151     int i_x, i_y;
 152
 153     for( i_y = p_vout->render.i_height ; i_y-- ; )
 154     {
 155         uint8_t *p_line = p_pixels;
 156         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 157         {
 158 #if defined (MODULE_NAME_IS_i422_yuy2)
 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             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 162             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
 163 #else
 164             __asm__( ".p2align 3" MMX_YUV422_YUYV
 165                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 166
 167             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 168 #endif
 169         }
 170         p_pixels += i_pitch;
 171     }
 172 }
 173
 174 /*****************************************************************************
 175  * I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
 176  *****************************************************************************/
 177 static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
 178                                               picture_t *p_dest )
 179 {
 180     uint8_t *p_pixels = p_dest->p->p_pixels;
 181     int      i_pitch  = p_dest->p->i_pitch;
 182     uint8_t *p_y = p_source->Y_PIXELS;
 183     uint8_t *p_u = p_source->U_PIXELS;
 184     uint8_t *p_v = p_source->V_PIXELS;
 185
 186     int i_x, i_y;
 187
 188     for( i_y = p_vout->render.i_height ; i_y-- ; )
 189     {
 190         uint8_t *p_line = p_pixels;
 191         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 192         {
 193 #if defined (MODULE_NAME_IS_i422_yuy2)
 194             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 195             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 196             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 197             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
 198 #else
 199             __asm__( ".p2align 3" MMX_YUV422_YVYU
 200                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 201
 202             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 203 #endif
 204         }
 205         p_pixels += i_pitch;
 206     }
 207 }
 208
 209 /*****************************************************************************
 210  * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
 211  *****************************************************************************/
 212 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
 213                                               picture_t *p_dest )
 214 {
 215     uint8_t *p_pixels = p_dest->p->p_pixels;
 216     int      i_pitch  = p_dest->p->i_pitch;
 217     uint8_t *p_y = p_source->Y_PIXELS;
 218     uint8_t *p_u = p_source->U_PIXELS;
 219     uint8_t *p_v = p_source->V_PIXELS;
 220
 221     int i_x, i_y;
 222
 223     for( i_y = p_vout->render.i_height ; i_y-- ; )
 224     {
 225         uint8_t *p_line = p_pixels;
 226         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 227         {
 228 #if defined (MODULE_NAME_IS_i422_yuy2)
 229             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 230             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 231             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 232             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 233 #else
 234             __asm__( ".p2align 3" MMX_YUV422_UYVY
 235                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 236
 237             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 238 #endif
 239         }
 240         p_pixels += i_pitch;
 241     }
 242 }
 243
 244 /*****************************************************************************
 245  * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
 246  *****************************************************************************/
 247 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
 248                                               picture_t *p_dest )
 249 {
 250     /* FIXME: TODO ! */
 251     msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
 252 }
 253
 254 /*****************************************************************************
 255  * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
 256  *****************************************************************************/
 257 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
 258                                               picture_t *p_dest )
 259 {
 260     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
 261     uint8_t *p_y = p_source->Y_PIXELS;
 262     uint8_t *p_u = p_source->U_PIXELS;
 263     uint8_t *p_v = p_source->V_PIXELS;
 264
 265     int i_x, i_y;
 266
 267     for( i_y = p_vout->render.i_height ; i_y-- ; )
 268     {
 269         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 270         {
 271             p_line -= 2 * p_dest->p->i_pitch;
 272
 273 #if defined (MODULE_NAME_IS_i422_yuy2)
 274             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
 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 #else
 279             __asm__( ".p2align 3" MMX_YUV422_UYVY
 280                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
 281
 282             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
 283 #endif
 284         }
 285     }
 286 }
 287
 288 /*****************************************************************************
 289  * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
 290  *****************************************************************************/
 291 #if defined (MODULE_NAME_IS_i422_yuy2)
 292 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
 293                                               picture_t *p_dest )
 294 {
 295     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
 296     uint8_t *p_y = p_source->Y_PIXELS;
 297     uint8_t *p_u = p_source->U_PIXELS;
 298     uint8_t *p_v = p_source->V_PIXELS;
 299
 300     int i_x, i_y;
 301
 302     for( i_y = p_vout->render.i_height ; i_y-- ; )
 303     {
 304         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
 305         {
 306             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 307             C_YUV422_Y211( p_line, p_y, p_u, p_v );
 308         }
 309     }
 310 }
 311 #endif
 312
 313
 314 /*****************************************************************************
 315  * I422_YV12: planar YUV 4:2:2 to planar YV12
 316  *****************************************************************************/
 317 #if defined (MODULE_NAME_IS_i422_yuy2)
 318 static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
 319                                               picture_t *p_dest )
 320 {
 321     uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
 322     uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
 323     uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
 324     uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
 325     uint16_t i_width = p_vout->render.i_width;
 326     uint16_t i_y = p_vout->render.i_height;
 327     uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
 328     uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
 329     uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
 330     uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
 331     uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
 332     uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
 333     i_y /= 2;
 334
 335     for ( ; i_y--; )
 336     {
 337         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
 338         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
 339         memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
 340         memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
 341     }
 342
 343 }
 344 #endif