git.sesse.net Git - vlc/blob - modules/video_output/x11/xvmc.c

   1 /*****************************************************************************
   2  * xvmc.c : XVMC plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Shane Harper <shanegh@optusnet.com.au>
   8  *          Vincent Seguin <seguin@via.ecp.fr>
   9  *          Samuel Hocevar <sam@zoy.org>
  10  *          David Kennedy <dkennedy@tinytoad.com>
  11  *          Jean-Paul Saman <jpsaman _at_ videolan _dot_ org>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  26  *****************************************************************************/
  27
  28 /*****************************************************************************
  29  * Preamble
  30  *****************************************************************************/
  31
  32 #ifdef HAVE_CONFIG_H
  33 # include "config.h"
  34 #endif
  35
  36 #include <vlc/vlc.h>
  37 #include <vlc_interface.h>
  38 #include <vlc_vout.h>
  39 #include <vlc_keys.h>
  40
  41 #ifdef HAVE_MACHINE_PARAM_H
  42     /* BSD */
  43 #   include <machine/param.h>
  44 #   include <sys/types.h>                                  /* typedef ushort */
  45 #   include <sys/ipc.h>
  46 #endif
  47
  48 #ifndef WIN32
  49 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  50 #endif
  51
  52 #ifdef HAVE_SYS_SHM_H
  53 #   include <sys/shm.h>                                /* shmget(), shmctl() */
  54 #endif
  55
  56 #include <X11/Xlib.h>
  57 #include <X11/Xmd.h>
  58 #include <X11/Xutil.h>
  59 #include <X11/keysym.h>
  60 #ifdef HAVE_SYS_SHM_H
  61 #   include <X11/extensions/XShm.h>
  62 #endif
  63 #ifdef DPMSINFO_IN_DPMS_H
  64 #   include <X11/extensions/dpms.h>
  65 #endif
  66
  67 #include <X11/extensions/Xv.h>
  68 #include <X11/extensions/Xvlib.h>
  69 #include <X11/extensions/vldXvMC.h>
  70
  71 #include "../../codec/xvmc/accel_xvmc.h"
  72 #include "xcommon.h"
  73 #include "../../codec/spudec/spudec.h"
  74 #include <unistd.h>
  75
  76 /* picture structure */
  77 #define TOP_FIELD 1
  78 #define BOTTOM_FIELD 2
  79 #define FRAME_PICTURE 3
  80
  81 /* picture coding type */
  82 #define I_TYPE 1
  83 #define P_TYPE 2
  84 #define B_TYPE 3
  85 #define D_TYPE 4
  86
  87 /*****************************************************************************
  88  * Exported prototypes
  89  *****************************************************************************/
  90 extern int  E_(Activate)   ( vlc_object_t * );
  91 extern void E_(Deactivate) ( vlc_object_t * );
  92
  93 /*****************************************************************************
  94  * Module descriptor
  95  *****************************************************************************/
  96 #define ADAPTOR_TEXT N_("XVMC adaptor number")
  97 #define ADAPTOR_LONGTEXT N_( \
  98     "If you graphics card provides several adaptors, this option allows you " \
  99     "to choose which one will be used (you shouldn't have to change this).")
 100
 101 #define ALT_FS_TEXT N_("Alternate fullscreen method")
 102 #define ALT_FS_LONGTEXT N_( \
 103     "There are two ways to make a fullscreen window, unfortunately each one " \
 104     "has its drawbacks.\n" \
 105     "1) Let the window manager handle your fullscreen window (default), but " \
 106     "things like taskbars will likely show on top of the video.\n" \
 107     "2) Completely bypass the window manager, but then nothing will be able " \
 108     "to show on top of the video.")
 109
 110 #define DISPLAY_TEXT N_("X11 display name")
 111 #define DISPLAY_LONGTEXT N_( \
 112     "Specify the X11 hardware display you want to use. By default VLC will " \
 113     "use the value of the DISPLAY environment variable.")
 114
 115 #define CHROMA_TEXT N_("XVimage chroma format")
 116 #define CHROMA_LONGTEXT N_( \
 117     "Force the XVideo renderer to use a specific chroma format instead of " \
 118     "trying to improve performances by using the most efficient one.")
 119
 120 #define SHM_TEXT N_("Use shared memory")
 121 #define SHM_LONGTEXT N_( \
 122     "Use shared memory to communicate between VLC and the X server.")
 123
 124 #define SCREEN_TEXT N_("Screen to be used for fullscreen mode.")
 125 #define SCREEN_LONGTEXT N_( \
 126     "Choose the screen you want to use in fullscreen mode. For instance " \
 127     "set it to 0 for first screen, 1 for the second.")
 128
 129 #define MODE_TEXT N_("Deinterlace mode")
 130 #define MODE_LONGTEXT N_("You can choose the default deinterlace mode")
 131
 132 #define CROP_TEXT N_("Crop")
 133 #define CROP_LONGTEXT N_("You can choose the crop style to apply.")
 134
 135 vlc_module_begin();
 136     set_shortname( "XVMC" );
 137     add_string( "xvmc-display", NULL, NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT, VLC_TRUE );
 138     add_integer( "xvmc-adaptor", -1, NULL, ADAPTOR_TEXT, ADAPTOR_LONGTEXT, VLC_TRUE );
 139     add_bool( "xvmc-altfullscreen", 0, NULL, ALT_FS_TEXT, ALT_FS_LONGTEXT, VLC_TRUE );
 140     add_string( "xvmc-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, VLC_TRUE );
 141 #ifdef HAVE_SYS_SHM_H
 142     add_bool( "xvmc-shm", 1, NULL, SHM_TEXT, SHM_LONGTEXT, VLC_TRUE );
 143 #endif
 144 #ifdef HAVE_XINERAMA
 145     add_integer ( "xvmc-xineramascreen", 0, NULL, SCREEN_TEXT, SCREEN_LONGTEXT, VLC_TRUE );
 146 #endif
 147     add_string( "xvmc-deinterlace-mode", "bob", NULL, MODE_TEXT, MODE_LONGTEXT, VLC_FALSE );
 148     add_string( "xvmc-crop-style", "eq", NULL, CROP_TEXT, CROP_LONGTEXT, VLC_FALSE );
 149
 150     set_description( _("XVMC extension video output") );
 151     set_capability( "video output", 10 );
 152     set_callbacks( E_(Activate), E_(Deactivate) );
 153 vlc_module_end();
 154
 155 /* following functions are local */
 156
 157 static unsigned accel_priority[] = {
 158     VLC_XVMC_ACCEL_VLD,
 159 };
 160
 161 #define NUM_ACCEL_PRIORITY (sizeof(accel_priority)/sizeof(accel_priority[0]))
 162
 163 /*
 164  * Additional thread safety, since the plugin may decide to destroy a context
 165  * while it's surfaces are still active in the video-out loop.
 166  * When / If XvMC libs are reasonably thread-safe, the locks can be made
 167  * more efficient by allowing multiple threads in that do not destroy
 168  * the context or surfaces that may be active in other threads.
 169  */
 170
 171 static void init_context_lock( context_lock_t *c )
 172 {
 173     pthread_cond_init(&c->cond,NULL);
 174     pthread_mutex_init(&c->mutex,NULL);
 175     c->num_readers = 0;
 176 }
 177
 178 void free_context_lock( context_lock_t *c )
 179 {
 180     pthread_mutex_destroy(&c->mutex);
 181     pthread_cond_destroy(&c->cond);
 182 }
 183
 184 void xvmc_context_reader_lock( context_lock_t *c )
 185 {
 186     pthread_mutex_lock(&c->mutex);
 187     c->num_readers++;
 188     pthread_mutex_unlock(&c->mutex);
 189 }
 190
 191 void xvmc_context_reader_unlock( context_lock_t *c )
 192 {
 193     pthread_mutex_lock(&c->mutex);
 194     if (c->num_readers > 0) {
 195         if (--(c->num_readers) == 0) {
 196         pthread_cond_broadcast(&c->cond);
 197         }
 198     }
 199     pthread_mutex_unlock(&c->mutex);
 200 }
 201
 202 void xvmc_context_writer_lock( context_lock_t *c )
 203 {
 204     pthread_mutex_lock(&c->mutex);
 205     while(c->num_readers) {
 206         pthread_cond_wait( &c->cond, &c->mutex );
 207     }
 208 }
 209
 210 void xvmc_context_writer_unlock( context_lock_t *c )
 211 {
 212     pthread_mutex_unlock( &c->mutex );
 213 }
 214
 215 void clear_xx44_palette( xx44_palette_t *p )
 216 {
 217     int i;
 218     uint32_t *cluts = p->cluts;
 219     int *ids = p->lookup_cache;
 220
 221     i= p->size;
 222     while(i--)
 223         *cluts++ = 0;
 224     i = 2*OVL_PALETTE_SIZE;
 225     while(i--)
 226         *ids++ = -1;
 227     p->max_used=1;
 228 }
 229
 230 static void init_xx44_palette( xx44_palette_t *p, unsigned num_entries )
 231 {
 232     p->size = (num_entries > XX44_PALETTE_SIZE) ?
 233                     XX44_PALETTE_SIZE : num_entries;
 234 }
 235
 236 static void dispose_xx44_palette(xx44_palette_t *p)
 237 {
 238     /* Nothing to do */
 239 }
 240
 241 static void colorToPalette( const uint32_t *icolor, unsigned char *palette_p,
 242                             unsigned num_xvmc_components, char *xvmc_components )
 243 {
 244     const clut_t *color = (const clut_t *) icolor;
 245     unsigned int i;
 246
 247     for (i=0; i<num_xvmc_components; ++i)
 248     {
 249         switch(xvmc_components[i])
 250         {
 251             case 'V': *palette_p = color->cr; break;
 252             case 'U': *palette_p = color->cb; break;
 253             case 'Y':
 254             default:  *palette_p = color->y; break;
 255         }
 256         *palette_p++;
 257     }
 258 }
 259
 260
 261 void xx44_to_xvmc_palette( const xx44_palette_t *p,unsigned char *xvmc_palette,
 262                            unsigned first_xx44_entry, unsigned num_xx44_entries,
 263                            unsigned num_xvmc_components, char *xvmc_components )
 264 {
 265     unsigned int i;
 266     const uint32_t *cluts = p->cluts + first_xx44_entry;
 267
 268     for( i=0; i<num_xx44_entries; ++i )
 269     {
 270         if( (cluts - p->cluts) < p->size )
 271         {
 272             colorToPalette( cluts++, xvmc_palette,
 273                             num_xvmc_components, xvmc_components );
 274             xvmc_palette += num_xvmc_components;
 275         }
 276     }
 277 }
 278
 279 static int xx44_paletteIndex( xx44_palette_t *p, int color, uint32_t clut )
 280 {
 281     unsigned int i;
 282     uint32_t *cluts = p->cluts;
 283     int tmp;
 284
 285     if( (tmp = p->lookup_cache[color]) >= 0 )
 286     {
 287         if (cluts[tmp] == clut)
 288             return tmp;
 289     }
 290     for (i=0; i<p->max_used; ++i)
 291     {
 292         if (*cluts++ == clut) {
 293             p->lookup_cache[color] = i;
 294             return p->lookup_cache[color];
 295         }
 296     }
 297
 298     if( p->max_used == (p->size -1) )
 299     {
 300         //printf("video_out: Warning! Out of xx44 palette colors!\n");
 301         return 1;
 302     }
 303     p->cluts[p->max_used] = clut;
 304     p->lookup_cache[color] = p->max_used++;
 305     return p->lookup_cache[color];
 306 }
 307
 308 static void memblend_xx44( uint8_t *mem, uint8_t val,
 309                            size_t size, uint8_t mask )
 310 {
 311     uint8_t masked_val = val & mask;
 312
 313 /* size_t is unsigned, therefore always positive
 314    if (size < 0)
 315         return;*/
 316
 317     while(size--)
 318     {
 319         if( (*mem & mask) <= masked_val )
 320             *mem = val;
 321         mem++;
 322     }
 323 }
 324
 325 void blend_xx44( uint8_t *dst_img, subpicture_t *sub_img,
 326                  int dst_width, int dst_height, int dst_pitch,
 327                  xx44_palette_t *palette, int ia44 )
 328 {
 329     int src_width;
 330     int src_height;
 331     int mask;
 332     int x_off;
 333     int y_off;
 334     int x, y;
 335     uint8_t norm_pixel,clip_pixel;
 336     uint8_t *dst_y;
 337     uint8_t *dst;
 338     uint8_t alphamask;
 339     int clip_right;
 340     int i_len, i_color;
 341     uint16_t *p_source = NULL;
 342 #if 0
 343     if (!sub_img)
 344         return;
 345
 346     src_width  = sub_img->i_width;
 347     src_height = sub_img->i_height;
 348     x_off = sub_img->i_x;
 349     y_off = sub_img->i_y;
 350     alphamask = (ia44) ? 0x0F : 0xF0;
 351     p_source = (uint16_t *)sub_img->p_sys->p_data;
 352
 353     dst_y = dst_img + dst_pitch*y_off + x_off;
 354
 355     if( (x_off + sub_img->i_width) <= dst_width )
 356         clip_right = sub_img->i_width;
 357     else
 358         clip_right = dst_width - x_off;
 359
 360     if ((src_height + y_off) > dst_height)
 361         src_height = dst_height - y_off;
 362
 363     for (y = 0; y < src_height; y++)
 364     {
 365         mask = !( (y < sub_img->p_sys->i_y_start) ||
 366                   (y >= sub_img->p_sys->i_y_end) );
 367         dst = dst_y;
 368
 369         for (x = 0; x < src_width;)
 370         {
 371             i_color = *p_source & 0x3;
 372             i_len = *p_source++ >> 2;
 373
 374             if( (i_len > 0) && ((x+i_len) <= src_width) )
 375             {
 376                 /* Get the RLE part, then draw the line */
 377                 uint32_t color = (sub_img->p_sys->pi_yuv[i_color][0] << 16) |
 378                                  (sub_img->p_sys->pi_yuv[i_color][1] << 0) |
 379                                  (sub_img->p_sys->pi_yuv[i_color][2] << 8);
 380
 381                 norm_pixel = (uint8_t)(
 382                             (xx44_paletteIndex( palette,i_color, color ) << 4) |
 383                             (sub_img->p_sys->pi_alpha[i_color] & 0x0F) );
 384                 clip_pixel = (uint8_t)(
 385                             (xx44_paletteIndex( palette,i_color + OVL_PALETTE_SIZE,
 386                                                 sub_img->p_sys->pi_yuv[i_color][0] ) << 4) |
 387                             (sub_img->p_sys->pi_alpha[i_color] & 0x0F));
 388
 389                 if( !ia44 )
 390                 {
 391                     norm_pixel = ((norm_pixel & 0x0F) << 4) | ((norm_pixel & 0xF0) >> 4);
 392                     clip_pixel = ((clip_pixel & 0x0F) << 4) | ((clip_pixel & 0xF0) >> 4);
 393                 }
 394                 if( mask )
 395                 {
 396                     if( x < sub_img->p_sys->i_x_start )
 397                     {
 398                         if( (x + i_len) <= sub_img->p_sys->i_x_start )
 399                         {
 400                             memblend_xx44( dst, norm_pixel, i_len, alphamask );
 401                             dst += i_len;
 402                         }
 403                         else
 404                         {
 405                             memblend_xx44( dst, norm_pixel,
 406                                            sub_img->p_sys->i_x_start - x,
 407                                            alphamask );
 408                             dst += sub_img->p_sys->i_x_start - x;
 409                             i_len -= sub_img->p_sys->i_x_start - x;
 410                             if( i_len <= (sub_img->p_sys->i_x_end -
 411                                           sub_img->p_sys->i_x_start) )
 412                             {
 413                                 memblend_xx44( dst, clip_pixel,
 414                                                i_len, alphamask);
 415                                 dst += i_len;
 416                             }
 417                             else
 418                             {
 419                                 memblend_xx44( dst, clip_pixel,
 420                                                sub_img->p_sys->i_x_end -
 421                                                     sub_img->p_sys->i_x_start,
 422                                                alphamask );
 423                                 dst += (sub_img->p_sys->i_x_end -
 424                                         sub_img->p_sys->i_x_start);
 425                                 i_len -= (sub_img->p_sys->i_x_end -
 426                                           sub_img->p_sys->i_x_start);
 427                                 memblend_xx44( dst, norm_pixel,
 428                                                i_len, alphamask );
 429                                 dst += i_len;
 430                             }
 431                         }
 432                     }
 433                     else if( x < sub_img->p_sys->i_x_end )
 434                     {
 435                         if( i_len <= (sub_img->p_sys->i_x_end - x) )
 436                         {
 437                             memblend_xx44( dst, clip_pixel, i_len, alphamask);
 438                             dst += i_len;
 439                         }
 440                         else
 441                         {
 442                             memblend_xx44( dst, clip_pixel,
 443                                            sub_img->p_sys->i_x_end - x,
 444                                            alphamask);
 445                             dst += (sub_img->p_sys->i_x_end - x);
 446                             i_len -= (sub_img->p_sys->i_x_end - x);
 447                             memblend_xx44( dst, norm_pixel, i_len, alphamask);
 448                             dst += i_len;
 449                         }
 450                     }
 451                     else
 452                     {
 453                         memblend_xx44( dst, norm_pixel, i_len, alphamask );
 454                         dst += i_len;
 455                     }
 456                 }
 457                 else
 458                 {
 459                     memblend_xx44( dst, norm_pixel, i_len, alphamask );
 460                     dst += i_len;
 461                 }
 462             }
 463             else
 464             {
 465                 return;
 466             }
 467             x += i_len;
 468         }
 469         dst_y += dst_pitch;
 470     }
 471 #endif
 472 }
 473
 474 int xxmc_xvmc_surface_valid( vout_thread_t *p_vout, XvMCSurface *surf )
 475 {
 476     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 477     unsigned int index = surf - handler->surfaces;
 478     int ret;
 479
 480     if (index >= XVMC_MAX_SURFACES)
 481         return 0;
 482     pthread_mutex_lock(&handler->mutex);
 483     ret = handler->surfValid[index];
 484     pthread_mutex_unlock(&handler->mutex);
 485     return ret;
 486 }
 487
 488 static void xxmc_xvmc_dump_subpictures( vout_thread_t *p_vout )
 489 {
 490     int i;
 491     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 492
 493     for( i=0; i < XVMC_MAX_SUBPICTURES; ++i )
 494     {
 495         msg_Dbg( p_vout, "handler in use %d, valid %d",
 496                          handler->subInUse[i],
 497                          handler->subValid[i]);
 498     }
 499 }
 500
 501 XvMCSubpicture *xxmc_xvmc_alloc_subpicture( vout_thread_t *p_vout,
 502                     XvMCContext *context, unsigned short width,
 503                     unsigned short height, int xvimage_id )
 504 {
 505     int i;
 506     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 507     int status;
 508
 509     pthread_mutex_lock(&handler->mutex);
 510     /* xxmc_xvmc_dump_subpictures(p_vout); */
 511     for( i=0; i<XVMC_MAX_SUBPICTURES; ++i )
 512     {
 513         if( handler->subValid[i] && !handler->subInUse[i] )
 514         {
 515             XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 516             if( XvMCGetSubpictureStatus( p_vout->p_sys->p_display,
 517                                          handler->subpictures + i,
 518                                          &status ) )
 519             {
 520                 XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 521                 continue;
 522             }
 523             XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 524             if( status & XVMC_DISPLAYING )
 525                 continue;
 526             handler->subInUse[i] = 1;
 527             /* xxmc_xvmc_dump_subpictures(p_vout); */
 528             pthread_mutex_unlock(&handler->mutex);
 529             return (handler->subpictures + i);
 530         }
 531     }
 532     for (i=0; i<XVMC_MAX_SUBPICTURES; ++i)
 533     {
 534         if( !handler->subInUse[i] )
 535         {
 536             XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 537             if( Success != XvMCCreateSubpicture( p_vout->p_sys->p_display,
 538                                                  context,
 539                                                  handler->subpictures + i,
 540                                                  width, height, xvimage_id ) )
 541             {
 542                 XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 543                 pthread_mutex_unlock( &handler->mutex );
 544                 return NULL;
 545             }
 546             XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 547             msg_Dbg( p_vout, "video_out_xxmc: created subpicture %d\n", i );
 548             handler->subInUse[i] = 1;
 549             handler->subValid[i] = 1;
 550             pthread_mutex_unlock( &handler->mutex );
 551             return (handler->subpictures + i);
 552         }
 553     }
 554     pthread_mutex_unlock( &handler->mutex );
 555     return NULL;
 556 }
 557
 558 void xxmc_xvmc_free_subpicture( vout_thread_t *p_vout, XvMCSubpicture *sub )
 559 {
 560     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 561     unsigned int index = sub - handler->subpictures;
 562
 563     if( index >= XVMC_MAX_SUBPICTURES )
 564         return;
 565
 566     pthread_mutex_lock( &handler->mutex );
 567     handler->subInUse[index] = 0;
 568     /* xxmc_xvmc_dump_subpictures(p_vout); */
 569     pthread_mutex_unlock( &handler->mutex );
 570 }
 571
 572 static void xxmc_xvmc_surface_handler_construct( vout_thread_t *p_vout )
 573 {
 574     int i;
 575     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 576
 577     pthread_mutex_init( &handler->mutex, NULL );
 578     for( i=0; i<XVMC_MAX_SURFACES; ++i )
 579     {
 580         handler->surfInUse[i] = 0;
 581         handler->surfValid[i] = 0;
 582     }
 583     for( i=0; i<XVMC_MAX_SUBPICTURES; ++i )
 584     {
 585         handler->subInUse[i] = 0;
 586         handler->subValid[i] = 0;
 587     }
 588 }
 589
 590 static void xxmc_xvmc_dump_surfaces( vout_thread_t *p_vout )
 591 {
 592     int i;
 593     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 594
 595     for (i=0; i<XVMC_MAX_SURFACES; ++i)
 596     {
 597         msg_Dbg(p_vout, "surfaces in use %d, valid %d;",
 598                         handler->surfInUse[i],
 599                         handler->surfValid[i]);
 600     }
 601 }
 602
 603 void xxmc_xvmc_free_surface( vout_thread_t *p_vout, XvMCSurface *surf )
 604 {
 605     xvmc_surface_handler_t *handler = &p_vout->p_sys->xvmc_surf_handler;
 606     unsigned int index = 0;
 607
 608     index = (surf - handler->surfaces);
 609
 610     if (index < XVMC_MAX_SURFACES)
 611     {
 612         pthread_mutex_lock(&handler->mutex);
 613         msg_Dbg( p_vout,"free surface %d",index );
 614         handler->surfInUse[index]--;
 615         xxmc_xvmc_dump_surfaces(p_vout);
 616         pthread_mutex_unlock(&handler->mutex);
 617     }
 618 }
 619
 620 int checkXvMCCap( vout_thread_t *p_vout )
 621 {
 622     int i_xvport = 0;
 623     int numSurf = 0;
 624     int numSub = 0;
 625     int i,j;
 626     XvMCSurfaceInfo     *surfaceInfo =NULL;
 627     XvMCSurfaceInfo     *curInfo = NULL;
 628     XvMCContext         c;
 629     xvmc_capabilities_t *curCap = NULL;
 630     XvImageFormatValues *formatValues = NULL;
 631
 632     i_xvport = p_vout->p_sys->i_xvport;
 633     p_vout->p_sys->xvmc_cap = 0;
 634
 635     init_context_lock( &p_vout->p_sys->xvmc_lock );
 636     xvmc_context_writer_lock( &p_vout->p_sys->xvmc_lock );
 637
 638     p_vout->p_sys->old_subpic = NULL;
 639     p_vout->p_sys->new_subpic = NULL;
 640     p_vout->p_sys->contextActive = 0;
 641     p_vout->p_sys->subImage = NULL;
 642     p_vout->p_sys->hwSubpictures = 0;
 643     p_vout->p_sys->xvmc_palette = NULL;
 644
 645     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 646
 647     if( !XvMCQueryExtension( p_vout->p_sys->p_display,
 648                              &p_vout->p_sys->xvmc_eventbase,
 649                              &p_vout->p_sys->xvmc_errbase ) )
 650     {
 651         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 652         xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock );
 653         return VLC_EGENERIC;
 654     }
 655     msg_Dbg( p_vout,"XvMC extension found" );
 656
 657     surfaceInfo = XvMCListSurfaceTypes(p_vout->p_sys->p_display, i_xvport, &numSurf);
 658     if( !surfaceInfo )
 659     {
 660         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 661         xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock );
 662         return VLC_EGENERIC;
 663     }
 664
 665     p_vout->p_sys->xvmc_cap =
 666             (xvmc_capabilities_t *) malloc( numSurf *
 667                                             sizeof(xvmc_capabilities_t) );
 668     if( !p_vout->p_sys->xvmc_cap )
 669     {
 670         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 671         xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock );
 672         return VLC_EGENERIC;
 673     }
 674
 675     p_vout->p_sys->xvmc_num_cap = numSurf;
 676     curInfo = surfaceInfo;
 677     curCap = p_vout->p_sys->xvmc_cap;
 678
 679     msg_Dbg( p_vout,"found %d XvMC surface types", numSurf );
 680
 681     for( i=0; i< numSurf; ++i )
 682     {
 683         curCap->mpeg_flags = 0;
 684         curCap->accel_flags = 0;
 685         if( curInfo->chroma_format == XVMC_CHROMA_FORMAT_420 )
 686         {
 687             curCap->mpeg_flags |= ((curInfo->mc_type & XVMC_MPEG_1) ?
 688                                                 VLC_XVMC_MPEG_1 : 0);
 689             curCap->mpeg_flags |= ((curInfo->mc_type & XVMC_MPEG_2) ?
 690                                                 VLC_XVMC_MPEG_2 : 0);
 691             curCap->mpeg_flags |= ((curInfo->mc_type & XVMC_MPEG_4) ?
 692                                                 VLC_XVMC_MPEG_4 : 0);
 693             curCap->accel_flags |= ((curInfo->mc_type & XVMC_VLD) ?
 694                                               VLC_XVMC_ACCEL_VLD : 0);
 695             curCap->accel_flags |= ((curInfo->mc_type & XVMC_IDCT) ?
 696                                              VLC_XVMC_ACCEL_IDCT : 0);
 697             curCap->accel_flags |= ((curInfo->mc_type & (XVMC_VLD | XVMC_IDCT)) ?
 698                                             0 : VLC_XVMC_ACCEL_MOCOMP);
 699             curCap->max_width = curInfo->max_width;
 700             curCap->max_height = curInfo->max_height;
 701             curCap->sub_max_width = curInfo->subpicture_max_width;
 702             curCap->sub_max_height = curInfo->subpicture_max_height;
 703             curCap->flags = curInfo->flags;
 704
 705             msg_Dbg (p_vout, "surface type %d: Max size: %d %d.",
 706                             i, curCap->max_width, curCap->max_height);
 707             msg_Dbg (p_vout, "surface subtype %d: Max subpic size: %d %d.",
 708                             i, curCap->sub_max_width, curCap->sub_max_height);
 709
 710             curCap->type_id = curInfo->surface_type_id;
 711             formatValues = XvMCListSubpictureTypes( p_vout->p_sys->p_display,
 712                                                     i_xvport,
 713                                                     curCap->type_id,
 714                                                     &numSub );
 715             curCap->subPicType.id = 0;
 716             if( formatValues )
 717             {
 718                 msg_Dbg( p_vout, "surface type %d: found %d XvMC subpicture types",
 719                                 i, numSub);
 720                 for( j = 0; j<numSub; ++j )
 721                 {
 722                     if( formatValues[j].id == FOURCC_IA44 )
 723                     {
 724                         curCap->subPicType = formatValues[j];
 725                         msg_Dbg( p_vout,
 726                                     "surface type %d: detected and using "
 727                                     "IA44 subpicture type.", i );
 728                         /* Prefer IA44 */
 729                         break;
 730                     }
 731                     else if( formatValues[j].id == FOURCC_AI44 )
 732                     {
 733                         curCap->subPicType = formatValues[j];
 734                         msg_Dbg( p_vout,
 735                                  "surface type %d: detected AI44 "
 736                                  "subpicture type.", i );
 737                     }
 738                 }
 739             }
 740             XFree(formatValues);
 741             curInfo++;
 742             curCap++;
 743         }
 744     }
 745     XFree(surfaceInfo);
 746
 747     /*
 748      * Try to create a direct rendering context. This will fail if we are not
 749      * on the displaying computer or an indirect context is not available.
 750      */
 751     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 752     curCap = p_vout->p_sys->xvmc_cap;
 753     if( Success == XvMCCreateContext( p_vout->p_sys->p_display, i_xvport,
 754                                       curCap->type_id,
 755                                       curCap->max_width,
 756                                       curCap->max_height,
 757                                       XVMC_DIRECT, &c ) )
 758     {
 759         msg_Dbg( p_vout, "using direct XVMC rendering context" );
 760         p_vout->p_sys->context_flags = XVMC_DIRECT;
 761     }
 762     else if( Success == XvMCCreateContext( p_vout->p_sys->p_display, i_xvport,
 763                                            curCap->type_id,
 764                                            curCap->max_width,
 765                                            curCap->max_height,
 766                                            0, &c ) )
 767     {
 768         msg_Dbg( p_vout, "using default XVMC rendering context" );
 769         p_vout->p_sys->context_flags = 0;
 770     }
 771     else
 772     {
 773         if( p_vout->p_sys->xvmc_cap )
 774             free( p_vout->p_sys->xvmc_cap );
 775         p_vout->p_sys->xvmc_cap = NULL;
 776         msg_Err( p_vout, "use of direct XvMC context on a remote display failed"
 777                          " falling back to XV." );
 778         xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock );
 779         return VLC_SUCCESS;
 780     }
 781     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 782     XvMCDestroyContext( p_vout->p_sys->p_display, &c );
 783     xxmc_xvmc_surface_handler_construct(p_vout );
 784     /*  p_vout->p_sys->capabilities |= VO_CAP_XXMC; */
 785     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 786     init_xx44_palette( &p_vout->p_sys->palette , 0 );
 787     p_vout->p_sys->last_accel_request = 0xFFFFFFFF;
 788     xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock );
 789     return VLC_SUCCESS;
 790 }
 791
 792 static int xxmc_setup_subpictures( vout_thread_t *p_vout,
 793         unsigned int width, unsigned int height )
 794 {
 795     xvmc_capabilities_t *curCap = NULL;
 796     XvMCSubpicture *sp = NULL;
 797
 798     if( p_vout->p_sys->contextActive )
 799     {
 800         curCap = p_vout->p_sys->xvmc_cap + p_vout->p_sys->xvmc_cur_cap;
 801
 802         if( (width > curCap->sub_max_width) ||
 803             (height > curCap->sub_max_height) )
 804             return VLC_EGENERIC;
 805
 806         if( (p_vout->p_sys->xvmc_backend_subpic =
 807                 (curCap->flags & XVMC_BACKEND_SUBPICTURE)) )
 808             msg_Dbg( p_vout, "using backend subpictures." );
 809
 810         if (!p_vout->p_sys->subImage)
 811         {
 812             XLockDisplay( p_vout->p_sys->p_display );
 813             msg_Dbg(p_vout, "xxmc_setup_subpictures");
 814 #ifdef HAVE_SYS_SHM_H
 815             if( p_vout->p_sys->i_shm_opcode )
 816             {
 817                 /* Create image using XShm extension */
 818                 p_vout->p_sys->subImage = CreateShmImage( p_vout,
 819                                             p_vout->p_sys->p_display,
 820                                             p_vout->p_sys->i_xvport,
 821                                             curCap->subPicType.id,
 822                                             /* VLC2X11_FOURCC( p_vout->output. i_chroma ), */
 823                                             &p_vout->p_sys->subShmInfo,
 824                                             p_vout->output.i_width,
 825                                             p_vout->output.i_height );
 826             }
 827 #endif /* HAVE_SYS_SHM_H */
 828             XUnlockDisplay( p_vout->p_sys->p_display );
 829             if( !p_vout->p_sys->subImage )
 830             {
 831                 msg_Dbg(p_vout, "failed allocating XvImage for supbictures" );
 832                 return VLC_EGENERIC;
 833             }
 834         }
 835
 836         sp = xxmc_xvmc_alloc_subpicture( p_vout, &p_vout->p_sys->context,
 837                                          width, height,
 838                                          curCap->subPicType.id );
 839         if( sp )
 840         {
 841             init_xx44_palette( &p_vout->p_sys->palette, sp->num_palette_entries );
 842             p_vout->p_sys->xvmc_palette = (char *) malloc( sp->num_palette_entries
 843                     * sp->entry_bytes );
 844             xxmc_xvmc_free_subpicture( p_vout, sp);
 845             if( !p_vout->p_sys->xvmc_palette )
 846                 return VLC_EGENERIC;
 847             p_vout->p_sys->hwSubpictures = 1;
 848         }
 849     }
 850     return VLC_SUCCESS;
 851 }
 852
 853 static void xvmc_check_colorkey_properties( vout_thread_t *p_vout )
 854 {
 855     int num,i;
 856     XvAttribute *xvmc_attributes = NULL;
 857     Atom ap;
 858
 859     /*
 860     * Determine if the context is of "Overlay" type. If so,
 861     * check whether we can autopaint.
 862     */
 863     p_vout->p_sys->have_xvmc_autopaint = 0;
 864     if( p_vout->p_sys->context_flags & XVMC_OVERLAID_SURFACE )
 865     {
 866         msg_Dbg( p_vout, "check colorkey properties" );
 867         XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 868         xvmc_attributes = XvMCQueryAttributes( p_vout->p_sys->p_display,
 869                                                &p_vout->p_sys->context,
 870                                                &num );
 871         if( xvmc_attributes )
 872         {
 873             for( i = 0; i < num; ++i )
 874             {
 875                 if( strncmp( "XV_AUTOPAINT_COLORKEY",
 876                              xvmc_attributes[i].name,
 877                              21) == 0)
 878                 {
 879                     ap = XInternAtom( p_vout->p_sys->p_display,
 880                                       "XV_AUTOPAINT_COLORKEY",
 881                                        False );
 882                     XvMCSetAttribute( p_vout->p_sys->p_display,
 883                                       &p_vout->p_sys->context,
 884                                       ap,
 885                                       1 ); /* p_vout->p_sys->props[VO_PROP_AUTOPAINT_COLORKEY].value */
 886                     p_vout->p_sys->have_xvmc_autopaint = 1;
 887                     msg_Dbg( p_vout, "has xvmc autopaint" );
 888                 }
 889             }
 890         }
 891         XFree( xvmc_attributes );
 892         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 893         /* p_vout->p_sys->xvmc_xoverlay_type = X11OSD_COLORKEY; */
 894     }
 895 #if 0
 896     else
 897     {
 898         p_vout->p_sys->xvmc_xoverlay_type = X11OSD_SHAPED;
 899     }
 900 #endif
 901 }
 902
 903 static void xxmc_xvmc_destroy_surfaces( vout_thread_t *p_vout )
 904 {
 905     int i;
 906     xvmc_surface_handler_t *handler = NULL;
 907
 908     handler = &p_vout->p_sys->xvmc_surf_handler;
 909
 910     pthread_mutex_lock( &handler->mutex );
 911     for( i = 0; i < XVMC_MAX_SURFACES; ++i )
 912     {
 913         XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 914         if( handler->surfValid[i] )
 915         {
 916             XvMCFlushSurface( p_vout->p_sys->p_display , handler->surfaces+i);
 917             XvMCSyncSurface( p_vout->p_sys->p_display, handler->surfaces+i );
 918             XvMCHideSurface( p_vout->p_sys->p_display, handler->surfaces+i );
 919             XvMCDestroySurface( p_vout->p_sys->p_display, handler->surfaces+i );
 920         }
 921         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 922         handler->surfValid[i] = 0;
 923     }
 924     pthread_mutex_unlock( &handler->mutex );
 925 }
 926
 927 static void xxmc_xvmc_destroy_subpictures( vout_thread_t *p_vout )
 928 {
 929     int i;
 930     xvmc_surface_handler_t *handler = NULL;
 931
 932     handler = &p_vout->p_sys->xvmc_surf_handler;
 933
 934     pthread_mutex_lock( &handler->mutex );
 935     for( i = 0; i < XVMC_MAX_SUBPICTURES; ++i )
 936     {
 937         XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 938         if( handler->subValid[i] )
 939         {
 940             XvMCFlushSubpicture( p_vout->p_sys->p_display , handler->subpictures+i);
 941             XvMCSyncSubpicture( p_vout->p_sys->p_display, handler->subpictures+i );
 942             XvMCDestroySubpicture( p_vout->p_sys->p_display, handler->subpictures+i );
 943         }
 944         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 945         handler->subValid[i] = 0;
 946     }
 947     pthread_mutex_unlock( &handler->mutex );
 948 }
 949
 950 static XvMCSurface *xxmc_xvmc_alloc_surface( vout_thread_t *p_vout,
 951         XvMCContext *context )
 952 {
 953     xvmc_surface_handler_t *handler = NULL;
 954     int i;
 955
 956     handler = &p_vout->p_sys->xvmc_surf_handler;
 957
 958     pthread_mutex_lock( &handler->mutex );
 959     xxmc_xvmc_dump_surfaces( p_vout );
 960     for( i = 0; i < XVMC_MAX_SURFACES; ++i )
 961     {
 962         if( handler->surfValid[i] && !handler->surfInUse[i] )
 963         {
 964             handler->surfInUse[i] = 1;
 965             xxmc_xvmc_dump_surfaces( p_vout );
 966             pthread_mutex_unlock( &handler->mutex );
 967             return (handler->surfaces + i);
 968         }
 969     }
 970     for( i = 0; i < XVMC_MAX_SURFACES; ++i )
 971     {
 972         if( !handler->surfInUse[i] )
 973         {
 974             XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
 975             if( Success != XvMCCreateSurface( p_vout->p_sys->p_display,
 976                                               context,
 977                                               handler->surfaces + i) )
 978             {
 979                 XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 980                 pthread_mutex_unlock( &handler->mutex );
 981                 return NULL;
 982             }
 983             XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
 984
 985             msg_Dbg( p_vout, "created surface %d", i );
 986             handler->surfInUse[i] = 1;
 987             handler->surfValid[i] = 1;
 988             pthread_mutex_unlock( &handler->mutex );
 989             return (handler->surfaces + i);
 990         }
 991     }
 992     pthread_mutex_unlock( &handler->mutex );
 993     return NULL;
 994 }
 995
 996 void xxmc_dispose_context( vout_thread_t *p_vout )
 997 {
 998     if( p_vout->p_sys->contextActive )
 999     {
1000         if( p_vout->p_sys->xvmc_accel &
1001             (VLC_XVMC_ACCEL_MOCOMP | VLC_XVMC_ACCEL_IDCT) )
1002         {
1003             xvmc_macroblocks_t *macroblocks = NULL;
1004
1005             macroblocks = &p_vout->p_sys->macroblocks;
1006             XvMCDestroyMacroBlocks( p_vout->p_sys->p_display,
1007                                     &macroblocks->macro_blocks );
1008             XvMCDestroyBlocks( p_vout->p_sys->p_display,
1009                                &macroblocks->blocks );
1010         }
1011
1012         msg_Dbg( p_vout, "freeing up XvMC surfaces and subpictures" );
1013         if( p_vout->p_sys->xvmc_palette )
1014             free( p_vout->p_sys->xvmc_palette );
1015         dispose_xx44_palette( &p_vout->p_sys->palette );
1016         xxmc_xvmc_destroy_subpictures( p_vout );
1017         xxmc_xvmc_destroy_surfaces( p_vout );
1018
1019         msg_Dbg(p_vout, "freeing up XvMC Context.");
1020         XLockDisplay( p_vout->p_sys->p_display );
1021         if( p_vout->p_sys->subImage )
1022         {
1023             XFree( p_vout->p_sys->subImage );
1024             p_vout->p_sys->subImage = NULL;
1025         }
1026         p_vout->p_sys->subImage = NULL;
1027         XUnlockDisplay( p_vout->p_sys->p_display );
1028         XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1029         XvMCDestroyContext( p_vout->p_sys->p_display,
1030                             &p_vout->p_sys->context );
1031         XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1032         p_vout->p_sys->contextActive = 0;
1033         p_vout->p_sys->hwSubpictures = 0;
1034         p_vout->p_sys->xvmc_accel = 0;
1035     }
1036 }
1037
1038 static int xxmc_find_context( vout_thread_t *p_vout, vlc_xxmc_t *xxmc,
1039         unsigned int width, unsigned int height )
1040 {
1041     unsigned int i, k;
1042     vlc_bool_t found = VLC_FALSE;
1043     xvmc_capabilities_t *curCap = NULL;
1044     unsigned int request_mpeg_flags, request_accel_flags;
1045
1046     request_mpeg_flags = xxmc->mpeg;
1047     for( k = 0; k < NUM_ACCEL_PRIORITY; ++k )
1048     {
1049         request_accel_flags = xxmc->acceleration & accel_priority[k];
1050         if( !request_accel_flags )
1051             continue;
1052
1053         curCap = p_vout->p_sys->xvmc_cap;
1054         for( i =0; i < p_vout->p_sys->xvmc_num_cap; ++i )
1055         {
1056             msg_Dbg( p_vout, "surface type %d, capabilities 0x%8x 0x%8x",
1057                              i,
1058                              curCap->mpeg_flags,
1059                              curCap->accel_flags );
1060             msg_Dbg( p_vout, "fequests: 0x%8x 0x%8x",
1061                              request_mpeg_flags,
1062                              request_accel_flags );
1063             if( ( (curCap->mpeg_flags & request_mpeg_flags) == request_mpeg_flags) &&
1064                   (curCap->accel_flags & request_accel_flags) &&
1065                   (width <= curCap->max_width) &&
1066                   (height <= curCap->max_height) )
1067             {
1068                 found = VLC_TRUE;
1069                 break;
1070             }
1071             curCap++;
1072         }
1073         if( found )
1074         {
1075             p_vout->p_sys->xvmc_cur_cap = i;
1076             break;
1077         }
1078     }
1079     if( found )
1080     {
1081         p_vout->p_sys->xvmc_accel = request_accel_flags;
1082         p_vout->p_sys->unsigned_intra = (curCap->flags & XVMC_INTRA_UNSIGNED);
1083         return 1;
1084     }
1085     p_vout->p_sys->xvmc_accel = 0;
1086     return 0;
1087 }
1088
1089 static int xxmc_create_context( vout_thread_t *p_vout,
1090         unsigned int width, unsigned int height )
1091 {
1092     xvmc_capabilities_t *curCap = NULL;
1093
1094     curCap = p_vout->p_sys->xvmc_cap + p_vout->p_sys->xvmc_cur_cap;
1095
1096     msg_Dbg( p_vout, "creating new XvMC context %d", curCap->type_id );
1097
1098     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1099     if( Success == XvMCCreateContext( p_vout->p_sys->p_display,
1100                                       p_vout->p_sys->i_xvport,
1101                                       curCap->type_id,
1102                                       width,
1103                                       height,
1104                                       p_vout->p_sys->context_flags,
1105                                       &p_vout->p_sys->context ) )
1106     {
1107         p_vout->p_sys->xvmc_mpeg = curCap->mpeg_flags;
1108         p_vout->p_sys->xvmc_width = width;
1109         p_vout->p_sys->xvmc_height = height;
1110         p_vout->p_sys->contextActive = 1;
1111     }
1112     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1113     return p_vout->p_sys->contextActive;
1114 }
1115
1116 static void xvmc_flushsync(picture_t *picture)
1117 {
1118     vout_thread_t *p_vout = picture->p_sys->p_vout;
1119
1120     xvmc_context_reader_lock( &p_vout->p_sys->xvmc_lock );
1121
1122     if( ! xxmc_xvmc_surface_valid( p_vout, picture->p_sys->xvmc_surf)) {
1123         msg_Dbg(p_vout, "xvmc_flushsync 1 : %d", picture->p_sys->xxmc_data.result );
1124         picture->p_sys->xxmc_data.result = 128;
1125         xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1126         return;
1127     }
1128
1129     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1130     picture->p_sys->xxmc_data.result =
1131             XvMCFlushSurface( p_vout->p_sys->p_display,
1132                               picture->p_sys->xvmc_surf );
1133     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1134     xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1135 }
1136
1137 static void xvmc_flush(picture_t *picture)
1138 {
1139     vout_thread_t *p_vout = picture->p_sys->p_vout;
1140
1141     xvmc_context_reader_lock( &p_vout->p_sys->xvmc_lock );
1142
1143     if ( !xxmc_xvmc_surface_valid( p_vout, picture->p_sys->xvmc_surf ) )
1144     {
1145         msg_Dbg(p_vout, "xvmc flush 1 : %d", picture->p_sys->xxmc_data.result );
1146         picture->p_sys->xxmc_data.result = 128;
1147         xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1148         return;
1149     }
1150
1151     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1152     picture->p_sys->xxmc_data.result =
1153             XvMCFlushSurface( p_vout->p_sys->p_display,
1154                               picture->p_sys->xvmc_surf );
1155     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1156     xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1157 }
1158
1159 static int xxmc_frame_updates( vout_thread_t *p_vout, picture_t *picture )
1160 {
1161     vlc_xxmc_t *xxmc = &picture->p_sys->xxmc_data;
1162
1163     /*
1164      * If we have changed context since the surface was updated, xvmc_surf
1165      * is either NULL or invalid. If it is invalid. Set it to NULL.
1166      * Also if there are other users of this surface, deregister our use of
1167      * it and later try to allocate a new, fresh one.
1168      */
1169
1170     if( picture->p_sys->xvmc_surf )
1171     {
1172         if( !xxmc_xvmc_surface_valid( p_vout, picture->p_sys->xvmc_surf ) )
1173         {
1174             xxmc_xvmc_free_surface( p_vout , picture->p_sys->xvmc_surf );
1175             picture->p_sys->xvmc_surf = NULL;
1176         }
1177     }
1178 #if 0
1179     if( picture->p_sys->p_image )
1180     {
1181         memset( picture->p_sys->p_image->data, 0,
1182                 picture->p_sys->p_image->width
1183                     * picture->p_sys->p_image->height );
1184     }
1185 #endif
1186     /*
1187      * If it is NULL create a new surface.
1188      */
1189     if( !picture->p_sys->xvmc_surf )
1190     {
1191         picture->p_sys->xvmc_surf = xxmc_xvmc_alloc_surface( p_vout,
1192                                                     &p_vout->p_sys->context );
1193         if( !picture->p_sys->xvmc_surf )
1194         {
1195             msg_Err( p_vout, "accelerated surface allocation failed.\n"
1196                             " You are probably out of framebuffer memory.\n"
1197                             " Falling back to software decoding." );
1198             p_vout->p_sys->xvmc_accel = 0;
1199             xxmc_dispose_context( p_vout );
1200             return VLC_EGENERIC;
1201         }
1202     }
1203     xxmc->acceleration = p_vout->p_sys->xvmc_accel;
1204
1205     xxmc->proc_xxmc_flush = xvmc_flush;
1206     xxmc->proc_xxmc_flushsync = xvmc_flushsync;
1207     xxmc->xvmc.proc_macro_block = NULL;
1208 #if 0
1209     frame->vo_frame.proc_duplicate_frame_data = xxmc_duplicate_frame_data;
1210 #endif
1211     xxmc->proc_xxmc_begin = xvmc_vld_frame;
1212     xxmc->proc_xxmc_slice = xvmc_vld_slice;
1213     return VLC_SUCCESS;
1214 }
1215
1216 static int xxmc_xvmc_update_context( vout_thread_t *p_vout,
1217     picture_t *picture, uint32_t width, uint32_t height )
1218 {
1219     vlc_xxmc_t *xxmc = &picture->p_sys->xxmc_data;
1220
1221     /*
1222      * Are we at all capable of doing XvMC ?
1223      */
1224     if( p_vout->p_sys->xvmc_cap == 0 )
1225         return VLC_EGENERIC;
1226
1227     msg_Dbg( p_vout, "new format: need to change XvMC context. "
1228                      "width: %d height: %d mpeg: %d acceleration: %d",
1229                      width, height,
1230                      xxmc->mpeg, xxmc->acceleration );
1231
1232     if( picture->p_sys->xvmc_surf )
1233         xxmc_xvmc_free_surface( p_vout , picture->p_sys->xvmc_surf );
1234     picture->p_sys->xvmc_surf = NULL;
1235
1236     xxmc_dispose_context( p_vout );
1237
1238     if( xxmc_find_context( p_vout, xxmc, width, height ) )
1239     {
1240         xxmc_create_context( p_vout, width, height);
1241         xvmc_check_colorkey_properties( p_vout );
1242         xxmc_setup_subpictures(p_vout, width, height);
1243     }
1244
1245     if( !p_vout->p_sys->contextActive )
1246     {
1247         msg_Dbg( p_vout, "using software decoding for this stream" );
1248         p_vout->p_sys->xvmc_accel = 0;
1249     }
1250     else
1251     {
1252         msg_Dbg(p_vout, "using hardware decoding for this stream." );
1253     }
1254
1255     p_vout->p_sys->xvmc_mpeg = xxmc->mpeg;
1256     p_vout->p_sys->xvmc_width = width;
1257     p_vout->p_sys->xvmc_height = height;
1258     return p_vout->p_sys->contextActive;
1259 }
1260
1261
1262 void xxmc_do_update_frame( picture_t *picture, uint32_t width, uint32_t height,
1263         double ratio, int format, int flags)
1264 {
1265     vout_thread_t *p_vout = picture->p_sys->p_vout;
1266     int indextime = 0;
1267     int status = 0;
1268
1269     picture->p_sys->xxmc_data.decoded = 0;
1270     picture->p_sys->nb_display = 0;
1271     picture->b_force = 0;
1272     vlc_xxmc_t *xxmc = &picture->p_sys->xxmc_data;
1273
1274     xvmc_context_writer_lock( &p_vout->p_sys->xvmc_lock);
1275     if( (p_vout->p_sys->last_accel_request != xxmc->acceleration) ||
1276         (p_vout->p_sys->xvmc_mpeg != xxmc->mpeg) ||
1277         (p_vout->p_sys->xvmc_width != width) ||
1278         (p_vout->p_sys->xvmc_height != height))
1279     {
1280         p_vout->p_sys->last_accel_request = xxmc->acceleration;
1281         xxmc_xvmc_update_context( p_vout, picture, width, height );
1282     }
1283
1284     if( p_vout->p_sys->contextActive )
1285         xxmc_frame_updates( p_vout, picture );
1286
1287     if( !p_vout->p_sys->contextActive )
1288     {
1289         xxmc->acceleration = 0;
1290         xxmc->xvmc.macroblocks = 0;
1291     }
1292     else
1293     {
1294         picture->format.i_chroma = format;
1295     }
1296     xvmc_context_writer_unlock( &p_vout->p_sys->xvmc_lock);
1297
1298     XvMCGetSurfaceStatus( p_vout->p_sys->p_display,
1299                           picture->p_sys->xvmc_surf,
1300                           &status );
1301     /* Wait a little till frame is being displayed */
1302     while( status & XVMC_DISPLAYING )
1303     {
1304         msleep(1);
1305
1306         XvMCGetSurfaceStatus( p_vout->p_sys->p_display,
1307                               picture->p_sys->xvmc_surf,
1308                               &status );
1309
1310         indextime++;
1311         if( indextime > 4 )
1312             break;
1313     }
1314 }
1315
1316 #if 0
1317 /* called xlocked */
1318 static void dispose_ximage( vout_thread_t *p_vout, XShmSegmentInfo *shminfo,
1319                 XvImage *myimage )
1320 {
1321 # ifdef HAVE_SYS_SHM_H
1322     if( p_vout->p_sys->i_shm_opcode )
1323     {
1324         XShmDetach( p_vout->p_sys->p_display, shminfo );
1325         XFree( myimage );
1326         shmdt( shminfo->shmaddr );
1327         if( shminfo->shmid >= 0 )
1328         {
1329             shmctl( shminfo->shmid, IPC_RMID, 0 );
1330             shminfo->shmid = -1;
1331         }
1332     }
1333     else
1334 #endif
1335     {
1336         if( myimage->data )
1337             free(myimage->data);
1338         XFree (myimage);
1339     }
1340 }
1341 #endif
1342
1343 void xvmc_vld_frame( picture_t *picture )
1344 {
1345     picture_sys_t *p_sys  = picture->p_sys;
1346     vout_thread_t *p_vout = p_sys->p_vout;
1347     vlc_vld_frame_t *vft  = &(p_sys->xxmc_data.vld_frame);
1348     picture_t *ff         = (picture_t *) vft->forward_reference_picture;
1349     picture_t *bf         = (picture_t *) vft->backward_reference_picture;
1350     XvMCMpegControl ctl;
1351     XvMCSurface *fs=0, *bs=0;
1352     XvMCQMatrix qmx;
1353
1354     ctl.BHMV_range = vft->mv_ranges[0][0];
1355     ctl.BVMV_range = vft->mv_ranges[0][1];
1356     ctl.FHMV_range = vft->mv_ranges[1][0];
1357     ctl.FVMV_range = vft->mv_ranges[1][1];
1358     ctl.picture_structure = vft->picture_structure;
1359     ctl.intra_dc_precision = vft->intra_dc_precision;
1360     ctl.picture_coding_type = vft->picture_coding_type;
1361     ctl.mpeg_coding = (vft->mpeg_coding == 0) ? XVMC_MPEG_1 : XVMC_MPEG_2;
1362     ctl.flags = 0;
1363     ctl.flags |= (vft->progressive_sequence) ? XVMC_PROGRESSIVE_SEQUENCE : 0;
1364     ctl.flags |= (vft->scan) ? XVMC_ALTERNATE_SCAN : XVMC_ZIG_ZAG_SCAN;
1365     ctl.flags |= (vft->pred_dct_frame) ?
1366                     XVMC_PRED_DCT_FRAME : XVMC_PRED_DCT_FIELD;
1367     ctl.flags |= (picture->b_top_field_first) ?
1368                     XVMC_TOP_FIELD_FIRST : XVMC_BOTTOM_FIELD_FIRST;
1369     ctl.flags |= (vft->concealment_motion_vectors) ?
1370                     XVMC_CONCEALMENT_MOTION_VECTORS : 0;
1371     ctl.flags |= (vft->q_scale_type) ? XVMC_Q_SCALE_TYPE : 0;
1372     ctl.flags |= (vft->intra_vlc_format) ? XVMC_INTRA_VLC_FORMAT : 0;
1373     ctl.flags |= (vft->second_field) ? XVMC_SECOND_FIELD : 0;
1374
1375     if( ff )
1376         fs = ff->p_sys->xvmc_surf;
1377     if( bf )
1378         bs = bf->p_sys->xvmc_surf;
1379
1380     /*
1381      * Below is for interlaced streams and second_field.
1382      */
1383     if( ctl.picture_coding_type == P_TYPE ) /* XVMC_P_PICTURE) */
1384         bs = picture->p_sys->xvmc_surf;
1385
1386     if( (qmx.load_intra_quantiser_matrix = vft->load_intra_quantizer_matrix) )
1387     {
1388         memcpy( qmx.intra_quantiser_matrix, vft->intra_quantizer_matrix,
1389                 sizeof(qmx.intra_quantiser_matrix) );
1390     }
1391     if( (qmx.load_non_intra_quantiser_matrix =
1392                 vft->load_non_intra_quantizer_matrix) )
1393     {
1394         memcpy( qmx.non_intra_quantiser_matrix, vft->non_intra_quantizer_matrix,
1395                sizeof(qmx.non_intra_quantiser_matrix) );
1396     }
1397     qmx.load_chroma_intra_quantiser_matrix = 0;
1398     qmx.load_chroma_non_intra_quantiser_matrix = 0;
1399     xvmc_context_reader_lock( &p_vout->p_sys->xvmc_lock );
1400
1401     if( ! xxmc_xvmc_surface_valid( p_vout, picture->p_sys->xvmc_surf) )
1402     {
1403         picture->p_sys->xxmc_data.result = 128;
1404         xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1405         return;
1406     }
1407
1408     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1409     XvMCLoadQMatrix( p_vout->p_sys->p_display, &p_vout->p_sys->context, &qmx );
1410     do {
1411         picture->p_sys->xxmc_data.result =
1412                 XvMCBeginSurface( p_vout->p_sys->p_display,
1413                                   &p_vout->p_sys->context,
1414                                   picture->p_sys->xvmc_surf,
1415                                   fs, bs, &ctl );
1416     } while( !picture->p_sys->xxmc_data.result );
1417     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1418     xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1419 }
1420
1421 void xvmc_vld_slice( picture_t *picture )
1422 {
1423     picture_sys_t *p_sys  = picture->p_sys;
1424     vout_thread_t *p_vout = p_sys->p_vout;
1425
1426     xvmc_context_reader_lock( &p_vout->p_sys->xvmc_lock );
1427     if( !xxmc_xvmc_surface_valid( p_vout, picture->p_sys->xvmc_surf ) )
1428     {
1429         picture->p_sys->xxmc_data.result = 128;
1430         xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1431         msg_Err(p_vout, "vld slice error" );
1432         return;
1433     }
1434
1435     XVMCLOCKDISPLAY( p_vout->p_sys->p_display );
1436     picture->p_sys->xxmc_data.result =
1437             XvMCPutSlice2( p_vout->p_sys->p_display,
1438                            &p_vout->p_sys->context,
1439                             (char *)picture->p_sys->xxmc_data.slice_data,
1440                             picture->p_sys->xxmc_data.slice_data_size,
1441                             picture->p_sys->xxmc_data.slice_code );
1442
1443     if( picture->p_sys->xxmc_data.result != 0 )
1444         msg_Err( p_vout, "vlc slice error %d",
1445                  picture->p_sys->xxmc_data.result );
1446     /*
1447      * If CPU-saving mode is enabled, sleep after every xxmc->sleep slice. This will free
1448      * up the cpu while the decoder is working on the slice. The value of xxmc->sleep is calculated
1449      * so that the decoder thread sleeps at most 50% of the frame delay,
1450      * assuming a 2.6 kernel clock of 1000 Hz.
1451      */
1452     XVMCUNLOCKDISPLAY( p_vout->p_sys->p_display );
1453     xvmc_context_reader_unlock( &p_vout->p_sys->xvmc_lock );
1454 #if 0
1455     if( p_vout->p_sys->cpu_save_enabled )
1456     {
1457         p_vout->p_sys->cpu_saver += 1.;
1458         if( p_vout->p_sys->cpu_saver >= picture->p_sys->xxmc_data.sleep )
1459         {
1460             usleep(1);
1461             p_vout->p_sys->cpu_saver -= picture->p_sys->xxmc_data.sleep;
1462         }
1463     }
1464 #endif
1465 }