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

   1 /*****************************************************************************
   2  * xcommon.c: Functions common to the X11 and XVideo plugins
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id: xcommon.c,v 1.8 2002/12/06 16:34:08 sam Exp $
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          David Kennedy <dkennedy@tinytoad.com>
  10  *          Gildas Bazin <gbazin@netcourrier.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  25  *****************************************************************************/
  26
  27 /*****************************************************************************
  28  * Preamble
  29  *****************************************************************************/
  30 #include <errno.h>                                                 /* ENOMEM */
  31 #include <stdlib.h>                                                /* free() */
  32 #include <string.h>                                            /* strerror() */
  33
  34 #include <vlc/vlc.h>
  35 #include <vlc/intf.h>
  36 #include <vlc/vout.h>
  37
  38 #ifdef HAVE_MACHINE_PARAM_H
  39     /* BSD */
  40 #   include <machine/param.h>
  41 #   include <sys/types.h>                                  /* typedef ushort */
  42 #   include <sys/ipc.h>
  43 #endif
  44
  45 #ifndef WIN32
  46 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  47 #endif
  48
  49 #ifdef HAVE_SYS_SHM_H
  50 #   include <sys/shm.h>                                /* shmget(), shmctl() */
  51 #endif
  52
  53 #include <X11/Xlib.h>
  54 #include <X11/Xmd.h>
  55 #include <X11/Xutil.h>
  56 #include <X11/keysym.h>
  57 #ifdef HAVE_SYS_SHM_H
  58 #   include <X11/extensions/XShm.h>
  59 #endif
  60 #ifdef DPMSINFO_IN_DPMS_H
  61 #   include <X11/extensions/dpms.h>
  62 #endif
  63
  64 #ifdef MODULE_NAME_IS_xvideo
  65 #   include <X11/extensions/Xv.h>
  66 #   include <X11/extensions/Xvlib.h>
  67 #endif
  68
  69 #include "netutils.h"                                 /* network_ChannelJoin */
  70
  71 #include "xcommon.h"
  72
  73 /*****************************************************************************
  74  * Local prototypes
  75  *****************************************************************************/
  76 int  E_(Activate)   ( vlc_object_t * );
  77 void E_(Deactivate) ( vlc_object_t * );
  78
  79 static int  InitVideo      ( vout_thread_t * );
  80 static void EndVideo       ( vout_thread_t * );
  81 static void DisplayVideo   ( vout_thread_t *, picture_t * );
  82 static int  ManageVideo    ( vout_thread_t * );
  83
  84 static int  InitDisplay    ( vout_thread_t * );
  85
  86 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
  87 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
  88
  89 static int  NewPicture     ( vout_thread_t *, picture_t * );
  90 static void FreePicture    ( vout_thread_t *, picture_t * );
  91
  92 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
  93                                     Display *, EXTRA_ARGS, int, int );
  94 #ifdef HAVE_SYS_SHM_H
  95 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
  96                                     Display *, EXTRA_ARGS_SHM, int, int );
  97 #endif
  98
  99 static void ToggleFullScreen      ( vout_thread_t * );
 100
 101 static void EnableXScreenSaver    ( vout_thread_t * );
 102 static void DisableXScreenSaver   ( vout_thread_t * );
 103
 104 static void CreateCursor   ( vout_thread_t * );
 105 static void DestroyCursor  ( vout_thread_t * );
 106 static void ToggleCursor   ( vout_thread_t * );
 107
 108 #ifdef MODULE_NAME_IS_xvideo
 109 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
 110 static void XVideoReleasePort( vout_thread_t *, int );
 111 #endif
 112
 113 #ifdef MODULE_NAME_IS_x11
 114 static void SetPalette     ( vout_thread_t *, u16 *, u16 *, u16 * );
 115 #endif
 116
 117 /*****************************************************************************
 118  * Activate: allocate X11 video thread output method
 119  *****************************************************************************
 120  * This function allocate and initialize a X11 vout method. It uses some of the
 121  * vout properties to choose the window size, and change them according to the
 122  * actual properties of the display.
 123  *****************************************************************************/
 124 int E_(Activate) ( vlc_object_t *p_this )
 125 {
 126     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 127     char *       psz_display;
 128 #ifdef MODULE_NAME_IS_xvideo
 129     char *       psz_chroma;
 130     vlc_fourcc_t i_chroma = 0;
 131     vlc_bool_t   b_chroma = 0;
 132 #endif
 133
 134     p_vout->pf_init = InitVideo;
 135     p_vout->pf_end = EndVideo;
 136     p_vout->pf_manage = ManageVideo;
 137     p_vout->pf_render = NULL;
 138     p_vout->pf_display = DisplayVideo;
 139
 140     /* Allocate structure */
 141     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 142     if( p_vout->p_sys == NULL )
 143     {
 144         msg_Err( p_vout, "out of memory" );
 145         return VLC_ENOMEM;
 146     }
 147
 148     /* Open display, using the "display" config variable or the DISPLAY
 149      * environment variable */
 150     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
 151
 152     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 153
 154     if( p_vout->p_sys->p_display == NULL )                          /* error */
 155     {
 156         msg_Err( p_vout, "cannot open display %s",
 157                          XDisplayName( psz_display ) );
 158         free( p_vout->p_sys );
 159         if( psz_display ) free( psz_display );
 160         return VLC_EGENERIC;
 161     }
 162     if( psz_display ) free( psz_display );
 163
 164     /* Get a screen ID matching the XOpenDisplay return value */
 165     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 166
 167 #ifdef MODULE_NAME_IS_xvideo
 168     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
 169     if( psz_chroma )
 170     {
 171         if( strlen( psz_chroma ) >= 4 )
 172         {
 173             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
 174             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
 175             i_chroma |= (unsigned char)psz_chroma[2] << 16;
 176             i_chroma |= (unsigned char)psz_chroma[3] << 24;
 177
 178             b_chroma = 1;
 179         }
 180
 181         free( psz_chroma );
 182     }
 183
 184     if( b_chroma )
 185     {
 186         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
 187                  i_chroma, (char*)&i_chroma );
 188     }
 189     else
 190     {
 191         i_chroma = p_vout->render.i_chroma;
 192     }
 193
 194     /* Check that we have access to an XVideo port providing this chroma */
 195     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
 196                                              &p_vout->output.i_chroma );
 197     if( p_vout->p_sys->i_xvport < 0 )
 198     {
 199         /* If a specific chroma format was requested, then we don't try to
 200          * be cleverer than the user. He knew pretty well what he wanted. */
 201         if( b_chroma )
 202         {
 203             XCloseDisplay( p_vout->p_sys->p_display );
 204             free( p_vout->p_sys );
 205             return VLC_EGENERIC;
 206         }
 207
 208         /* It failed, but it's not completely lost ! We try to open an
 209          * XVideo port for an YUY2 picture. We'll need to do an YUV
 210          * conversion, but at least it has got scaling. */
 211         p_vout->p_sys->i_xvport =
 212                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
 213                                                &p_vout->output.i_chroma );
 214         if( p_vout->p_sys->i_xvport < 0 )
 215         {
 216             /* It failed, but it's not completely lost ! We try to open an
 217              * XVideo port for a simple 16bpp RGB picture. We'll need to do
 218              * an YUV conversion, but at least it has got scaling. */
 219             p_vout->p_sys->i_xvport =
 220                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
 221                                                    &p_vout->output.i_chroma );
 222             if( p_vout->p_sys->i_xvport < 0 )
 223             {
 224                 XCloseDisplay( p_vout->p_sys->p_display );
 225                 free( p_vout->p_sys );
 226                 return VLC_EGENERIC;
 227             }
 228         }
 229     }
 230 #endif
 231
 232     /* Create blank cursor (for mouse cursor autohiding) */
 233     p_vout->p_sys->i_time_mouse_last_moved = mdate();
 234     p_vout->p_sys->b_mouse_pointer_visible = 1;
 235     CreateCursor( p_vout );
 236
 237     /* Set main window's size */
 238     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
 239     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
 240
 241     /* Spawn base window - this window will include the video output window,
 242      * but also command buttons, subtitles and other indicators */
 243     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
 244     {
 245         msg_Err( p_vout, "cannot create X11 window" );
 246         DestroyCursor( p_vout );
 247         XCloseDisplay( p_vout->p_sys->p_display );
 248         free( p_vout->p_sys );
 249         return VLC_EGENERIC;
 250     }
 251
 252     /* Open and initialize device. */
 253     if( InitDisplay( p_vout ) )
 254     {
 255         msg_Err( p_vout, "cannot initialize X11 display" );
 256         DestroyCursor( p_vout );
 257         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 258         XCloseDisplay( p_vout->p_sys->p_display );
 259         free( p_vout->p_sys );
 260         return VLC_EGENERIC;
 261     }
 262
 263     /* Disable screen saver */
 264     DisableXScreenSaver( p_vout );
 265
 266     /* Misc init */
 267     p_vout->p_sys->b_altfullscreen = 0;
 268     p_vout->p_sys->i_time_button_last_pressed = 0;
 269
 270     return VLC_SUCCESS;
 271 }
 272
 273 /*****************************************************************************
 274  * Deactivate: destroy X11 video thread output method
 275  *****************************************************************************
 276  * Terminate an output method created by Open
 277  *****************************************************************************/
 278 void E_(Deactivate) ( vlc_object_t *p_this )
 279 {
 280     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 281
 282     /* If the fullscreen window is still open, close it */
 283     if( p_vout->b_fullscreen )
 284     {
 285         ToggleFullScreen( p_vout );
 286     }
 287
 288     /* Restore cursor if it was blanked */
 289     if( !p_vout->p_sys->b_mouse_pointer_visible )
 290     {
 291         ToggleCursor( p_vout );
 292     }
 293
 294 #ifdef MODULE_NAME_IS_x11
 295     /* Destroy colormap */
 296     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 297     {
 298         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 299     }
 300 #else
 301     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
 302 #endif
 303
 304     DestroyCursor( p_vout );
 305     EnableXScreenSaver( p_vout );
 306     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 307
 308     XCloseDisplay( p_vout->p_sys->p_display );
 309
 310     /* Destroy structure */
 311     free( p_vout->p_sys );
 312 }
 313
 314 /*****************************************************************************
 315  * InitVideo: initialize X11 video thread output method
 316  *****************************************************************************
 317  * This function create the XImages needed by the output thread. It is called
 318  * at the beginning of the thread, but also each time the window is resized.
 319  *****************************************************************************/
 320 static int InitVideo( vout_thread_t *p_vout )
 321 {
 322     int i_index;
 323     picture_t *p_pic;
 324
 325     I_OUTPUTPICTURES = 0;
 326
 327 #ifdef MODULE_NAME_IS_xvideo
 328     /* Initialize the output structure; we already found an XVideo port,
 329      * and the corresponding chroma we will be using. Since we can
 330      * arbitrary scale, stick to the coordinates and aspect. */
 331     p_vout->output.i_width  = p_vout->render.i_width;
 332     p_vout->output.i_height = p_vout->render.i_height;
 333     p_vout->output.i_aspect = p_vout->render.i_aspect;
 334
 335     switch( p_vout->output.i_chroma )
 336     {
 337         case VLC_FOURCC('R','V','1','5'):
 338             p_vout->output.i_rmask = 0x001f;
 339             p_vout->output.i_gmask = 0x07e0;
 340             p_vout->output.i_bmask = 0xf800;
 341             break;
 342         case VLC_FOURCC('R','V','1','6'):
 343             p_vout->output.i_rmask = 0x001f;
 344             p_vout->output.i_gmask = 0x03e0;
 345             p_vout->output.i_bmask = 0x7c00;
 346             break;
 347     }
 348
 349 #else
 350     /* Initialize the output structure: RGB with square pixels, whatever
 351      * the input format is, since it's the only format we know */
 352     switch( p_vout->p_sys->i_screen_depth )
 353     {
 354         case 8: /* FIXME: set the palette */
 355             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
 356         case 15:
 357             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
 358         case 16:
 359             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
 360         case 24:
 361             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 362         case 32:
 363             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 364         default:
 365             msg_Err( p_vout, "unknown screen depth %i",
 366                      p_vout->p_sys->i_screen_depth );
 367             return VLC_SUCCESS;
 368     }
 369
 370     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 371                        p_vout->p_sys->p_win->i_height,
 372                        &i_index, &i_index,
 373                        &p_vout->output.i_width, &p_vout->output.i_height );
 374
 375     /* Assume we have square pixels */
 376     p_vout->output.i_aspect = p_vout->output.i_width
 377                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
 378 #endif
 379
 380     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 381     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 382     {
 383         p_pic = NULL;
 384
 385         /* Find an empty picture slot */
 386         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 387         {
 388           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 389             {
 390                 p_pic = p_vout->p_picture + i_index;
 391                 break;
 392             }
 393         }
 394
 395         /* Allocate the picture */
 396         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 397         {
 398             break;
 399         }
 400
 401         p_pic->i_status = DESTROYED_PICTURE;
 402         p_pic->i_type   = DIRECT_PICTURE;
 403
 404         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 405
 406         I_OUTPUTPICTURES++;
 407     }
 408
 409     return VLC_SUCCESS;
 410 }
 411
 412  /*****************************************************************************
 413  * DisplayVideo: displays previously rendered output
 414  *****************************************************************************
 415  * This function sends the currently rendered image to X11 server.
 416  * (The Xv extension takes care of "double-buffering".)
 417  *****************************************************************************/
 418 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 419 {
 420     int i_width, i_height, i_x, i_y;
 421
 422     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 423                        p_vout->p_sys->p_win->i_height,
 424                        &i_x, &i_y, &i_width, &i_height );
 425
 426 #ifdef HAVE_SYS_SHM_H
 427     if( p_vout->p_sys->b_shm )
 428     {
 429         /* Display rendered image using shared memory extension */
 430 #   ifdef MODULE_NAME_IS_xvideo
 431         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 432                        p_vout->p_sys->p_win->video_window,
 433                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 434                        0 /*src_x*/, 0 /*src_y*/,
 435                        p_vout->output.i_width, p_vout->output.i_height,
 436                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 437                        False /* Don't put True here or you'll waste your CPU */ );
 438 #   else
 439         XShmPutImage( p_vout->p_sys->p_display,
 440                       p_vout->p_sys->p_win->video_window,
 441                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 442                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 443                       p_vout->output.i_width, p_vout->output.i_height,
 444                       False /* Don't put True here ! */ );
 445 #   endif
 446     }
 447     else
 448 #endif /* HAVE_SYS_SHM_H */
 449     {
 450         /* Use standard XPutImage -- this is gonna be slow ! */
 451 #ifdef MODULE_NAME_IS_xvideo
 452         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 453                     p_vout->p_sys->p_win->video_window,
 454                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 455                     0 /*src_x*/, 0 /*src_y*/,
 456                     p_vout->output.i_width, p_vout->output.i_height,
 457                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 458 #else
 459         XPutImage( p_vout->p_sys->p_display,
 460                    p_vout->p_sys->p_win->video_window,
 461                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 462                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 463                    p_vout->output.i_width, p_vout->output.i_height );
 464 #endif
 465     }
 466
 467     /* Make sure the command is sent now - do NOT use XFlush !*/
 468     XSync( p_vout->p_sys->p_display, False );
 469 }
 470
 471 /*****************************************************************************
 472  * ManageVideo: handle X11 events
 473  *****************************************************************************
 474  * This function should be called regularly by video output thread. It manages
 475  * X11 events and allows window resizing. It returns a non null value on
 476  * error.
 477  *****************************************************************************/
 478 static int ManageVideo( vout_thread_t *p_vout )
 479 {
 480     XEvent      xevent;                                         /* X11 event */
 481     char        i_key;                                    /* ISO Latin-1 key */
 482     KeySym      x_key_symbol;
 483     vlc_value_t val;
 484
 485     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 486      * output window's size changed, MapNotify and UnmapNotify to know if the
 487      * window is mapped (and if the display is useful), and ClientMessages
 488      * to intercept window destruction requests */
 489
 490     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 491                               p_vout->p_sys->p_win->base_window,
 492                               StructureNotifyMask | KeyPressMask |
 493                               ButtonPressMask | ButtonReleaseMask |
 494                               PointerMotionMask | Button1MotionMask , &xevent )
 495            == True )
 496     {
 497         /* ConfigureNotify event: prepare  */
 498         if( xevent.type == ConfigureNotify )
 499         {
 500             if( (unsigned int)xevent.xconfigure.width
 501                    != p_vout->p_sys->p_win->i_width
 502               || (unsigned int)xevent.xconfigure.height
 503                     != p_vout->p_sys->p_win->i_height )
 504             {
 505                 /* Update dimensions */
 506                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
 507                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
 508                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
 509             }
 510         }
 511         /* Keyboard event */
 512         else if( xevent.type == KeyPress )
 513         {
 514             /* We may have keys like F1 trough F12, ESC ... */
 515             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 516                                              xevent.xkey.keycode, 0 );
 517             switch( (int)x_key_symbol )
 518             {
 519             case XK_Escape:
 520                 if( p_vout->b_fullscreen )
 521                 {
 522                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 523                 }
 524                 else
 525                 {
 526                     p_vout->p_vlc->b_die = 1;
 527                 }
 528                 break;
 529             case XK_Menu:
 530                 {
 531                     intf_thread_t *p_intf;
 532                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 533                                                       FIND_ANYWHERE );
 534                     if( p_intf )
 535                     {
 536                         p_intf->b_menu_change = 1;
 537                         vlc_object_release( p_intf );
 538                     }
 539                 }
 540                 break;
 541             case XK_Left:
 542                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 543                 break;
 544             case XK_Right:
 545                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 546                 break;
 547             case XK_Up:
 548                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 549                 break;
 550             case XK_Down:
 551                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 552                 break;
 553             case XK_Home:
 554                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
 555                 break;
 556             case XK_End:
 557                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
 558                 break;
 559             case XK_Page_Up:
 560                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 561                 break;
 562             case XK_Page_Down:
 563                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 564                 break;
 565             case XK_space:
 566                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
 567                 break;
 568
 569             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
 570             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
 571             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
 572             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
 573             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
 574             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
 575             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
 576             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
 577             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
 578             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
 579             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
 580             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
 581
 582             default:
 583                 /* "Normal Keys"
 584                  * The reason why I use this instead of XK_0 is that
 585                  * with XLookupString, we don't have to care about
 586                  * keymaps. */
 587
 588                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 589                 {
 590                     /* FIXME: handle stuff here */
 591                     switch( i_key )
 592                     {
 593                     case 'q':
 594                     case 'Q':
 595                         p_vout->p_vlc->b_die = 1;
 596                         break;
 597                     case 'f':
 598                     case 'F':
 599                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 600                         break;
 601
 602                     default:
 603                         break;
 604                     }
 605                 }
 606                 break;
 607             }
 608         }
 609         /* Mouse click */
 610         else if( xevent.type == ButtonPress )
 611         {
 612             switch( ((XButtonEvent *)&xevent)->button )
 613             {
 614                 case Button1:
 615
 616                     /* detect double-clicks */
 617                     if( ( ((XButtonEvent *)&xevent)->time -
 618                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 619                     {
 620                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 621                     }
 622
 623                     p_vout->p_sys->i_time_button_last_pressed =
 624                         ((XButtonEvent *)&xevent)->time;
 625                     break;
 626
 627                 case Button4:
 628                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 629                     break;
 630
 631                 case Button5:
 632                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 633                     break;
 634             }
 635         }
 636         /* Mouse release */
 637         else if( xevent.type == ButtonRelease )
 638         {
 639             switch( ((XButtonEvent *)&xevent)->button )
 640             {
 641                 case Button1:
 642                     val.b_bool = VLC_TRUE;
 643                     var_Set( p_vout, "mouse-clicked", val );
 644                     break;
 645
 646                 case Button3:
 647                     {
 648                         intf_thread_t *p_intf;
 649                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 650                                                           FIND_ANYWHERE );
 651                         if( p_intf )
 652                         {
 653                             p_intf->b_menu_change = 1;
 654                             vlc_object_release( p_intf );
 655                         }
 656                     }
 657                     break;
 658             }
 659         }
 660         /* Mouse move */
 661         else if( xevent.type == MotionNotify )
 662         {
 663             int i_width, i_height, i_x, i_y;
 664             vlc_value_t val;
 665
 666             /* somewhat different use for vout_PlacePicture:
 667              * here the values are needed to give to mouse coordinates
 668              * in the original picture space */
 669             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 670                                p_vout->p_sys->p_win->i_height,
 671                                &i_x, &i_y, &i_width, &i_height );
 672
 673             val.i_int = ( xevent.xmotion.x - i_x )
 674                          * p_vout->render.i_width / i_width;
 675             var_Set( p_vout, "mouse-x", val );
 676             val.i_int = ( xevent.xmotion.y - i_y )
 677                          * p_vout->render.i_height / i_height;
 678             var_Set( p_vout, "mouse-y", val );
 679
 680             val.b_bool = VLC_TRUE;
 681             var_Set( p_vout, "mouse-moved", val );
 682
 683             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 684             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 685             {
 686                 ToggleCursor( p_vout );
 687             }
 688         }
 689         /* Reparent move -- XXX: why are we getting this ? */
 690         else if( xevent.type == ReparentNotify )
 691         {
 692             ;
 693         }
 694         /* Other event */
 695         else
 696         {
 697             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 698         }
 699     }
 700
 701     /* Handle events for video output sub-window */
 702     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 703                               p_vout->p_sys->p_win->video_window,
 704                               ExposureMask, &xevent ) == True )
 705     {
 706         /* Window exposed (only handled if stream playback is paused) */
 707         if( xevent.type == Expose )
 708         {
 709             if( ((XExposeEvent *)&xevent)->count == 0 )
 710             {
 711                 /* (if this is the last a collection of expose events...) */
 712 #if 0
 713                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
 714                 {
 715                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
 716                                                    ->stream.control.i_status )
 717                     {
 718                         /* XVideoDisplay( p_vout )*/;
 719                     }
 720                 }
 721 #endif
 722             }
 723         }
 724     }
 725
 726     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 727      * are handled - according to the man pages, the format is always 32
 728      * in this case */
 729     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 730                              ClientMessage, &xevent ) )
 731     {
 732         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
 733                && (xevent.xclient.data.l[0]
 734                      == p_vout->p_sys->p_win->wm_delete_window ) )
 735         {
 736             p_vout->p_vlc->b_die = 1;
 737         }
 738     }
 739
 740     /*
 741      * Fullscreen Change
 742      */
 743     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 744     {
 745         ToggleFullScreen( p_vout );
 746         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 747     }
 748
 749     /*
 750      * Size change
 751      *
 752      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
 753      *  the size flag inside the fullscreen routine)
 754      */
 755     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 756     {
 757         int i_width, i_height, i_x, i_y;
 758
 759         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 760
 761         msg_Dbg( p_vout, "video display resized (%dx%d)",
 762                          p_vout->p_sys->p_win->i_width,
 763                          p_vout->p_sys->p_win->i_height );
 764
 765 #ifdef MODULE_NAME_IS_x11
 766         /* We need to signal the vout thread about the size change because it
 767          * is doing the rescaling */
 768         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 769 #endif
 770
 771         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 772                            p_vout->p_sys->p_win->i_height,
 773                            &i_x, &i_y, &i_width, &i_height );
 774
 775         XResizeWindow( p_vout->p_sys->p_display,
 776                        p_vout->p_sys->p_win->video_window, i_width, i_height );
 777
 778         XMoveWindow( p_vout->p_sys->p_display,
 779                      p_vout->p_sys->p_win->video_window, i_x, i_y );
 780     }
 781
 782     /* Autohide Cursour */
 783     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 784     {
 785         /* Hide the mouse automatically */
 786         if( p_vout->p_sys->b_mouse_pointer_visible )
 787         {
 788             ToggleCursor( p_vout );
 789         }
 790     }
 791
 792     return 0;
 793 }
 794
 795 /*****************************************************************************
 796  * EndVideo: terminate X11 video thread output method
 797  *****************************************************************************
 798  * Destroy the X11 XImages created by Init. It is called at the end of
 799  * the thread, but also each time the window is resized.
 800  *****************************************************************************/
 801 static void EndVideo( vout_thread_t *p_vout )
 802 {
 803     int i_index;
 804
 805     /* Free the direct buffers we allocated */
 806     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 807     {
 808         i_index--;
 809         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 810     }
 811 }
 812
 813 /* following functions are local */
 814
 815 /*****************************************************************************
 816  * CreateWindow: open and set-up X11 main window
 817  *****************************************************************************/
 818 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
 819 {
 820     XSizeHints              xsize_hints;
 821     XSetWindowAttributes    xwindow_attributes;
 822     XGCValues               xgcvalues;
 823     XEvent                  xevent;
 824
 825     vlc_bool_t              b_expose;
 826     vlc_bool_t              b_configure_notify;
 827     vlc_bool_t              b_map_notify;
 828
 829     long long int           i_drawable;
 830
 831     /* Prepare window manager hints and properties */
 832     xsize_hints.base_width          = p_win->i_width;
 833     xsize_hints.base_height         = p_win->i_height;
 834     xsize_hints.flags               = PSize;
 835     p_win->wm_protocols =
 836              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
 837     p_win->wm_delete_window =
 838              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
 839
 840     /* Prepare window attributes */
 841     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 842     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 843                                                      p_vout->p_sys->i_screen);
 844     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 845
 846     /* Check whether someone provided us with a window ID */
 847     i_drawable = p_vout->b_fullscreen ?
 848                     -1 : config_GetInt( p_vout, MODULE_STRING "-drawable");
 849
 850     if( i_drawable == -1 )
 851     {
 852         p_win->b_owned = VLC_TRUE;
 853
 854         /* Create the window and set hints - the window must receive
 855          * ConfigureNotify events, and until it is displayed, Expose and
 856          * MapNotify events. */
 857
 858         p_win->base_window =
 859             XCreateWindow( p_vout->p_sys->p_display,
 860                            DefaultRootWindow( p_vout->p_sys->p_display ),
 861                            0, 0,
 862                            p_win->i_width, p_win->i_height,
 863                            0,
 864                            0, InputOutput, 0,
 865                            CWBackingStore | CWBackPixel | CWEventMask,
 866                            &xwindow_attributes );
 867
 868         if( !p_vout->b_fullscreen )
 869         {
 870             /* Set window manager hints and properties: size hints, command,
 871              * window's name, and accepted protocols */
 872             XSetWMNormalHints( p_vout->p_sys->p_display,
 873                                p_win->base_window, &xsize_hints );
 874             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
 875                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 876
 877             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
 878 #ifdef MODULE_NAME_IS_x11
 879                         VOUT_TITLE " (X11 output)"
 880 #else
 881                         VOUT_TITLE " (XVideo output)"
 882 #endif
 883                       );
 884         }
 885     }
 886     else
 887     {
 888         p_win->b_owned = VLC_FALSE;
 889         p_win->base_window = i_drawable;
 890
 891         XChangeWindowAttributes( p_vout->p_sys->p_display,
 892                                  p_win->base_window,
 893                                  CWBackingStore | CWBackPixel | CWEventMask,
 894                                  &xwindow_attributes );
 895     }
 896
 897     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 898         || (p_win->wm_delete_window == None)
 899         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
 900                              &p_win->wm_delete_window, 1 ) )
 901     {
 902         /* WM_DELETE_WINDOW is not supported by window manager */
 903         msg_Warn( p_vout, "missing or bad window manager" );
 904     }
 905
 906     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 907      * event when using functions like XCopyArea */
 908     xgcvalues.graphics_exposures = False;
 909     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
 910                            p_win->base_window,
 911                            GCGraphicsExposures, &xgcvalues );
 912
 913     if( p_win->b_owned )
 914     {
 915         /* Send orders to server, and wait until window is displayed - three
 916          * events must be received: a MapNotify event, an Expose event allowing
 917          * drawing in the window, and a ConfigureNotify to get the window
 918          * dimensions. Once those events have been received, only
 919          * ConfigureNotify events need to be received. */
 920         b_expose = 0;
 921         b_configure_notify = 0;
 922         b_map_notify = 0;
 923         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
 924         do
 925         {
 926             XNextEvent( p_vout->p_sys->p_display, &xevent);
 927             if( (xevent.type == Expose)
 928                 && (xevent.xexpose.window == p_win->base_window) )
 929             {
 930                 b_expose = 1;
 931             }
 932             else if( (xevent.type == MapNotify)
 933                      && (xevent.xmap.window == p_win->base_window) )
 934             {
 935                 b_map_notify = 1;
 936             }
 937             else if( (xevent.type == ConfigureNotify)
 938                      && (xevent.xconfigure.window == p_win->base_window) )
 939             {
 940                 b_configure_notify = 1;
 941                 p_win->i_width = xevent.xconfigure.width;
 942                 p_win->i_height = xevent.xconfigure.height;
 943             }
 944         } while( !( b_expose && b_configure_notify && b_map_notify ) );
 945     }
 946     else
 947     {
 948         /* Get the window's geometry information */
 949         Window dummy1;
 950         unsigned int dummy2, dummy3;
 951         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
 952                       &dummy1, &dummy2, &dummy3,
 953                       &p_win->i_width,
 954                       &p_win->i_height,
 955                       &dummy2, &dummy3 );
 956     }
 957
 958     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
 959                   StructureNotifyMask | KeyPressMask |
 960                   ButtonPressMask | ButtonReleaseMask |
 961                   PointerMotionMask );
 962
 963 #ifdef MODULE_NAME_IS_x11
 964     if( p_win->b_owned &&
 965          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 966     {
 967         /* Allocate a new palette */
 968         p_vout->p_sys->colormap =
 969             XCreateColormap( p_vout->p_sys->p_display,
 970                              DefaultRootWindow( p_vout->p_sys->p_display ),
 971                              DefaultVisual( p_vout->p_sys->p_display,
 972                                             p_vout->p_sys->i_screen ),
 973                              AllocAll );
 974
 975         xwindow_attributes.colormap = p_vout->p_sys->colormap;
 976         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
 977                                  CWColormap, &xwindow_attributes );
 978     }
 979 #endif
 980
 981     /* Create video output sub-window. */
 982     p_win->video_window =  XCreateSimpleWindow(
 983                                       p_vout->p_sys->p_display,
 984                                       p_win->base_window, 0, 0,
 985                                       p_win->i_width, p_win->i_height,
 986                                       0,
 987                                       BlackPixel( p_vout->p_sys->p_display,
 988                                                   p_vout->p_sys->i_screen ),
 989                                       WhitePixel( p_vout->p_sys->p_display,
 990                                                   p_vout->p_sys->i_screen ) );
 991
 992     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
 993                           BlackPixel( p_vout->p_sys->p_display,
 994                                       p_vout->p_sys->i_screen ) );
 995
 996     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
 997     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
 998                   ExposureMask );
 999
1000     /* make sure the video window will be centered in the next ManageVideo() */
1001     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1002
1003     /* If the cursor was formerly blank than blank it again */
1004     if( !p_vout->p_sys->b_mouse_pointer_visible )
1005     {
1006         ToggleCursor( p_vout );
1007         ToggleCursor( p_vout );
1008     }
1009
1010     /* Do NOT use XFlush here ! */
1011     XSync( p_vout->p_sys->p_display, False );
1012
1013     /* At this stage, the window is open, displayed, and ready to
1014      * receive data */
1015     p_vout->p_sys->p_win = p_win;
1016
1017     return VLC_SUCCESS;
1018 }
1019
1020 /*****************************************************************************
1021  * DestroyWindow: destroy the window
1022  *****************************************************************************
1023  *
1024  *****************************************************************************/
1025 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1026 {
1027     /* Do NOT use XFlush here ! */
1028     XSync( p_vout->p_sys->p_display, False );
1029
1030     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1031     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1032
1033     if( p_win->b_owned )
1034     {
1035         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1036         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1037     }
1038 }
1039
1040 /*****************************************************************************
1041  * NewPicture: allocate a picture
1042  *****************************************************************************
1043  * Returns 0 on success, -1 otherwise
1044  *****************************************************************************/
1045 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1046 {
1047     /* We know the chroma, allocate a buffer which will be used
1048      * directly by the decoder */
1049     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1050
1051     if( p_pic->p_sys == NULL )
1052     {
1053         return -1;
1054     }
1055
1056 #ifdef HAVE_SYS_SHM_H
1057     if( p_vout->p_sys->b_shm )
1058     {
1059         /* Create image using XShm extension */
1060         p_pic->p_sys->p_image =
1061             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1062 #   ifdef MODULE_NAME_IS_xvideo
1063                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1064 #   else
1065                             p_vout->p_sys->p_visual,
1066                             p_vout->p_sys->i_screen_depth,
1067 #   endif
1068                             &p_pic->p_sys->shminfo,
1069                             p_vout->output.i_width, p_vout->output.i_height );
1070     }
1071     else
1072 #endif /* HAVE_SYS_SHM_H */
1073     {
1074         /* Create image without XShm extension */
1075         p_pic->p_sys->p_image =
1076             CreateImage( p_vout, p_vout->p_sys->p_display,
1077 #ifdef MODULE_NAME_IS_xvideo
1078                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1079 #else
1080                          p_vout->p_sys->p_visual,
1081                          p_vout->p_sys->i_screen_depth,
1082                          p_vout->p_sys->i_bytes_per_pixel,
1083 #endif
1084                          p_vout->output.i_width, p_vout->output.i_height );
1085     }
1086
1087     if( p_pic->p_sys->p_image == NULL )
1088     {
1089         free( p_pic->p_sys );
1090         return -1;
1091     }
1092
1093     switch( p_vout->output.i_chroma )
1094     {
1095 #ifdef MODULE_NAME_IS_xvideo
1096         case VLC_FOURCC('I','4','2','0'):
1097
1098             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1099                                + p_pic->p_sys->p_image->offsets[0];
1100             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1101             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1102             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1103             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1104
1105             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1106                                + p_pic->p_sys->p_image->offsets[1];
1107             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1108             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1109             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1110             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1111
1112             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1113                                + p_pic->p_sys->p_image->offsets[2];
1114             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1115             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1116             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1117             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1118
1119             p_pic->i_planes = 3;
1120             break;
1121
1122         case VLC_FOURCC('Y','V','1','2'):
1123
1124             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1125                                + p_pic->p_sys->p_image->offsets[0];
1126             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1127             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1128             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1129             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1130
1131             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1132                                + p_pic->p_sys->p_image->offsets[2];
1133             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1134             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1135             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1136             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1137
1138             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1139                                + p_pic->p_sys->p_image->offsets[1];
1140             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1141             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1142             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1143             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1144
1145             p_pic->i_planes = 3;
1146             break;
1147
1148         case VLC_FOURCC('Y','2','1','1'):
1149
1150             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1151                                   + p_pic->p_sys->p_image->offsets[0];
1152             p_pic->p->i_lines = p_vout->output.i_height;
1153             /* XXX: this just looks so plain wrong... check it out ! */
1154             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1155             p_pic->p->i_pixel_pitch = 4;
1156             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1157
1158             p_pic->i_planes = 1;
1159             break;
1160
1161         case VLC_FOURCC('Y','U','Y','2'):
1162         case VLC_FOURCC('U','Y','V','Y'):
1163
1164             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1165                                   + p_pic->p_sys->p_image->offsets[0];
1166             p_pic->p->i_lines = p_vout->output.i_height;
1167             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1168             p_pic->p->i_pixel_pitch = 4;
1169             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1170
1171             p_pic->i_planes = 1;
1172             break;
1173
1174         case VLC_FOURCC('R','V','1','5'):
1175
1176             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1177                                   + p_pic->p_sys->p_image->offsets[0];
1178             p_pic->p->i_lines = p_vout->output.i_height;
1179             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1180             p_pic->p->i_pixel_pitch = 2;
1181             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1182
1183             p_pic->i_planes = 1;
1184             break;
1185
1186         case VLC_FOURCC('R','V','1','6'):
1187
1188             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1189                                   + p_pic->p_sys->p_image->offsets[0];
1190             p_pic->p->i_lines = p_vout->output.i_height;
1191             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1192             p_pic->p->i_pixel_pitch = 2;
1193             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1194
1195             p_pic->i_planes = 1;
1196             break;
1197
1198 #else
1199         case VLC_FOURCC('R','G','B','2'):
1200
1201             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1202                                   + p_pic->p_sys->p_image->xoffset;
1203             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1204             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1205             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1206             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1207
1208             p_pic->i_planes = 1;
1209
1210             break;
1211
1212         case VLC_FOURCC('R','V','1','6'):
1213         case VLC_FOURCC('R','V','1','5'):
1214
1215             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1216                                   + p_pic->p_sys->p_image->xoffset;
1217             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1218             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1219             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1220             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1221
1222             p_pic->i_planes = 1;
1223
1224             break;
1225
1226         case VLC_FOURCC('R','V','3','2'):
1227         case VLC_FOURCC('R','V','2','4'):
1228
1229             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1230                                   + p_pic->p_sys->p_image->xoffset;
1231             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1232             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1233             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1234             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1235
1236             p_pic->i_planes = 1;
1237
1238             break;
1239 #endif
1240
1241         default:
1242             /* Unknown chroma, tell the guy to get lost */
1243             IMAGE_FREE( p_pic->p_sys->p_image );
1244             free( p_pic->p_sys );
1245             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1246                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1247             p_pic->i_planes = 0;
1248             return -1;
1249     }
1250
1251     return 0;
1252 }
1253
1254 /*****************************************************************************
1255  * FreePicture: destroy a picture allocated with NewPicture
1256  *****************************************************************************
1257  * Destroy XImage AND associated data. If using Shm, detach shared memory
1258  * segment from server and process, then free it. The XDestroyImage manpage
1259  * says that both the image structure _and_ the data pointed to by the
1260  * image structure are freed, so no need to free p_image->data.
1261  *****************************************************************************/
1262 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1263 {
1264     /* The order of operations is correct */
1265 #ifdef HAVE_SYS_SHM_H
1266     if( p_vout->p_sys->b_shm )
1267     {
1268         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1269         IMAGE_FREE( p_pic->p_sys->p_image );
1270
1271         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1272         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1273         {
1274             msg_Err( p_vout, "cannot detach shared memory (%s)",
1275                              strerror(errno) );
1276         }
1277     }
1278     else
1279 #endif
1280     {
1281         IMAGE_FREE( p_pic->p_sys->p_image );
1282     }
1283
1284     /* Do NOT use XFlush here ! */
1285     XSync( p_vout->p_sys->p_display, False );
1286
1287     free( p_pic->p_sys );
1288 }
1289
1290 /*****************************************************************************
1291  * ToggleFullScreen: Enable or disable full screen mode
1292  *****************************************************************************
1293  * This function will switch between fullscreen and window mode.
1294  *****************************************************************************/
1295 static void ToggleFullScreen ( vout_thread_t *p_vout )
1296 {
1297     Atom prop;
1298     XEvent xevent;
1299     mwmhints_t mwmhints;
1300     XSetWindowAttributes attributes;
1301
1302     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1303
1304     if( p_vout->b_fullscreen )
1305     {
1306         msg_Dbg( p_vout, "entering fullscreen mode" );
1307
1308         p_vout->p_sys->b_altfullscreen =
1309             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1310
1311         if( p_vout->p_sys->p_win->b_owned )
1312         {
1313             XUnmapWindow( p_vout->p_sys->p_display,
1314                           p_vout->p_sys->p_win->base_window);
1315         }
1316
1317         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1318
1319         /* fullscreen window size and position */
1320         p_vout->p_sys->p_win->i_width =
1321             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1322         p_vout->p_sys->p_win->i_height =
1323             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1324
1325         CreateWindow( p_vout, p_vout->p_sys->p_win );
1326
1327         /* To my knowledge there are two ways to create a borderless window.
1328          * There's the generic way which is to tell x to bypass the window
1329          * manager, but this creates problems with the focus of other
1330          * applications.
1331          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1332          * luckily seems to be supported by most window managers. */
1333         if( !p_vout->p_sys->b_altfullscreen )
1334         {
1335             mwmhints.flags = MWM_HINTS_DECORATIONS;
1336             mwmhints.decorations = False;
1337
1338             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1339                                 False );
1340             XChangeProperty( p_vout->p_sys->p_display,
1341                              p_vout->p_sys->p_win->base_window,
1342                              prop, prop, 32, PropModeReplace,
1343                              (unsigned char *)&mwmhints,
1344                              PROP_MWM_HINTS_ELEMENTS );
1345         }
1346         else
1347         {
1348             /* brute force way to remove decorations */
1349             attributes.override_redirect = True;
1350             XChangeWindowAttributes( p_vout->p_sys->p_display,
1351                                      p_vout->p_sys->p_win->base_window,
1352                                      CWOverrideRedirect,
1353                                      &attributes);
1354         }
1355
1356         /* Make sure the change is effective */
1357         XReparentWindow( p_vout->p_sys->p_display,
1358                          p_vout->p_sys->p_win->base_window,
1359                          DefaultRootWindow( p_vout->p_sys->p_display ),
1360                          0, 0 );
1361
1362         /* fullscreen window size and position */
1363         p_vout->p_sys->p_win->i_width =
1364             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1365         p_vout->p_sys->p_win->i_height =
1366             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1367
1368         XMoveResizeWindow( p_vout->p_sys->p_display,
1369                            p_vout->p_sys->p_win->base_window,
1370                            0, 0,
1371                            p_vout->p_sys->p_win->i_width,
1372                            p_vout->p_sys->p_win->i_height );
1373     }
1374     else
1375     {
1376         msg_Dbg( p_vout, "leaving fullscreen mode" );
1377         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1378         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1379
1380         if( p_vout->p_sys->p_win->b_owned )
1381         {
1382             XMapWindow( p_vout->p_sys->p_display,
1383                         p_vout->p_sys->p_win->base_window);
1384         }
1385     }
1386
1387     /* Unfortunately, using XSync() here is not enough to ensure the
1388      * window has already been mapped because the XMapWindow() request
1389      * has not necessarily been sent directly to our window (remember,
1390      * the call is first redirected to the window manager) */
1391     if( p_vout->p_sys->p_win->b_owned )
1392     {
1393         do
1394         {
1395             XWindowEvent( p_vout->p_sys->p_display,
1396                           p_vout->p_sys->p_win->base_window,
1397                           StructureNotifyMask, &xevent );
1398         } while( xevent.type != MapNotify );
1399     }
1400     else
1401     {
1402         XSync( p_vout->p_sys->p_display, False );
1403     }
1404
1405     /* Becareful, this can generate a BadMatch error if the window is not
1406      * already mapped by the server (see above) */
1407     XSetInputFocus(p_vout->p_sys->p_display,
1408                    p_vout->p_sys->p_win->base_window,
1409                    RevertToParent,
1410                    CurrentTime);
1411
1412     /* signal that the size needs to be updated */
1413     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1414 }
1415
1416 /*****************************************************************************
1417  * EnableXScreenSaver: enable screen saver
1418  *****************************************************************************
1419  * This function enables the screen saver on a display after it has been
1420  * disabled by XDisableScreenSaver.
1421  * FIXME: what happens if multiple vlc sessions are running at the same
1422  *        time ???
1423  *****************************************************************************/
1424 static void EnableXScreenSaver( vout_thread_t *p_vout )
1425 {
1426 #ifdef DPMSINFO_IN_DPMS_H
1427     int dummy;
1428 #endif
1429
1430     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1431                      p_vout->p_sys->i_ss_interval,
1432                      p_vout->p_sys->i_ss_blanking,
1433                      p_vout->p_sys->i_ss_exposure );
1434
1435     /* Restore DPMS settings */
1436 #ifdef DPMSINFO_IN_DPMS_H
1437     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1438     {
1439         if( p_vout->p_sys->b_ss_dpms )
1440         {
1441             DPMSEnable( p_vout->p_sys->p_display );
1442         }
1443     }
1444 #endif
1445 }
1446
1447 /*****************************************************************************
1448  * DisableXScreenSaver: disable screen saver
1449  *****************************************************************************
1450  * See XEnableXScreenSaver
1451  *****************************************************************************/
1452 static void DisableXScreenSaver( vout_thread_t *p_vout )
1453 {
1454 #ifdef DPMSINFO_IN_DPMS_H
1455     int dummy;
1456 #endif
1457
1458     /* Save screen saver informations */
1459     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1460                      &p_vout->p_sys->i_ss_interval,
1461                      &p_vout->p_sys->i_ss_blanking,
1462                      &p_vout->p_sys->i_ss_exposure );
1463
1464     /* Disable screen saver */
1465     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1466                      p_vout->p_sys->i_ss_interval,
1467                      p_vout->p_sys->i_ss_blanking,
1468                      p_vout->p_sys->i_ss_exposure );
1469
1470     /* Disable DPMS */
1471 #ifdef DPMSINFO_IN_DPMS_H
1472     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1473     {
1474         CARD16 unused;
1475         /* Save DPMS current state */
1476         DPMSInfo( p_vout->p_sys->p_display, &unused,
1477                   &p_vout->p_sys->b_ss_dpms );
1478         DPMSDisable( p_vout->p_sys->p_display );
1479    }
1480 #endif
1481 }
1482
1483 /*****************************************************************************
1484  * CreateCursor: create a blank mouse pointer
1485  *****************************************************************************/
1486 static void CreateCursor( vout_thread_t *p_vout )
1487 {
1488     XColor cursor_color;
1489
1490     p_vout->p_sys->cursor_pixmap =
1491         XCreatePixmap( p_vout->p_sys->p_display,
1492                        DefaultRootWindow( p_vout->p_sys->p_display ),
1493                        1, 1, 1 );
1494
1495     XParseColor( p_vout->p_sys->p_display,
1496                  XCreateColormap( p_vout->p_sys->p_display,
1497                                   DefaultRootWindow(
1498                                                     p_vout->p_sys->p_display ),
1499                                   DefaultVisual(
1500                                                 p_vout->p_sys->p_display,
1501                                                 p_vout->p_sys->i_screen ),
1502                                   AllocNone ),
1503                  "black", &cursor_color );
1504
1505     p_vout->p_sys->blank_cursor =
1506         XCreatePixmapCursor( p_vout->p_sys->p_display,
1507                              p_vout->p_sys->cursor_pixmap,
1508                              p_vout->p_sys->cursor_pixmap,
1509                              &cursor_color, &cursor_color, 1, 1 );
1510 }
1511
1512 /*****************************************************************************
1513  * DestroyCursor: destroy the blank mouse pointer
1514  *****************************************************************************/
1515 static void DestroyCursor( vout_thread_t *p_vout )
1516 {
1517     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1518 }
1519
1520 /*****************************************************************************
1521  * ToggleCursor: hide or show the mouse pointer
1522  *****************************************************************************
1523  * This function hides the X pointer if it is visible by setting the pointer
1524  * sprite to a blank one. To show it again, we disable the sprite.
1525  *****************************************************************************/
1526 static void ToggleCursor( vout_thread_t *p_vout )
1527 {
1528     if( p_vout->p_sys->b_mouse_pointer_visible )
1529     {
1530         XDefineCursor( p_vout->p_sys->p_display,
1531                        p_vout->p_sys->p_win->base_window,
1532                        p_vout->p_sys->blank_cursor );
1533         p_vout->p_sys->b_mouse_pointer_visible = 0;
1534     }
1535     else
1536     {
1537         XUndefineCursor( p_vout->p_sys->p_display,
1538                          p_vout->p_sys->p_win->base_window );
1539         p_vout->p_sys->b_mouse_pointer_visible = 1;
1540     }
1541 }
1542
1543 #ifdef MODULE_NAME_IS_xvideo
1544 /*****************************************************************************
1545  * XVideoGetPort: get YUV12 port
1546  *****************************************************************************/
1547 static int XVideoGetPort( vout_thread_t *p_vout,
1548                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1549 {
1550     XvAdaptorInfo *p_adaptor;
1551     unsigned int i;
1552     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1553     int i_selected_port;
1554
1555     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1556     {
1557         case Success:
1558             break;
1559
1560         case XvBadExtension:
1561             msg_Warn( p_vout, "XvBadExtension" );
1562             return -1;
1563
1564         case XvBadAlloc:
1565             msg_Warn( p_vout, "XvBadAlloc" );
1566             return -1;
1567
1568         default:
1569             msg_Warn( p_vout, "XvQueryExtension failed" );
1570             return -1;
1571     }
1572
1573     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1574                              DefaultRootWindow( p_vout->p_sys->p_display ),
1575                              &i_num_adaptors, &p_adaptor ) )
1576     {
1577         case Success:
1578             break;
1579
1580         case XvBadExtension:
1581             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1582             return -1;
1583
1584         case XvBadAlloc:
1585             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1586             return -1;
1587
1588         default:
1589             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1590             return -1;
1591     }
1592
1593     i_selected_port = -1;
1594     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1595
1596     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1597     {
1598         XvImageFormatValues *p_formats;
1599         int i_format, i_num_formats;
1600         int i_port;
1601
1602         /* If we requested an adaptor and it's not this one, we aren't
1603          * interested */
1604         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1605         {
1606             continue;
1607         }
1608
1609         /* If the adaptor doesn't have the required properties, skip it */
1610         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1611             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1612         {
1613             continue;
1614         }
1615
1616         /* Check that adaptor supports our requested format... */
1617         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1618                                         p_adaptor[i_adaptor].base_id,
1619                                         &i_num_formats );
1620
1621         for( i_format = 0;
1622              i_format < i_num_formats && ( i_selected_port == -1 );
1623              i_format++ )
1624         {
1625             /* Code removed, we can get this through xvinfo anyway */
1626 #if 0
1627             XvEncodingInfo  *p_enc;
1628             int             i_enc, i_num_encodings;
1629             XvAttribute     *p_attr;
1630             int             i_attr, i_num_attributes;
1631 #endif
1632
1633             /* If this is not the format we want, or at least a
1634              * similar one, forget it */
1635             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1636             {
1637                 continue;
1638             }
1639
1640             /* Look for the first available port supporting this format */
1641             for( i_port = p_adaptor[i_adaptor].base_id;
1642                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1643                                    + p_adaptor[i_adaptor].num_ports) )
1644                    && ( i_selected_port == -1 );
1645                  i_port++ )
1646             {
1647                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1648                      == Success )
1649                 {
1650                     i_selected_port = i_port;
1651                     *pi_newchroma = p_formats[ i_format ].id;
1652                 }
1653             }
1654
1655             /* If no free port was found, forget it */
1656             if( i_selected_port == -1 )
1657             {
1658                 continue;
1659             }
1660
1661             /* If we found a port, print information about it */
1662             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1663                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1664                      (char *)&p_formats[ i_format ].id,
1665                      ( p_formats[ i_format ].format == XvPacked ) ?
1666                          "packed" : "planar" );
1667
1668 #if 0
1669             msg_Dbg( p_vout, " encoding list:" );
1670
1671             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1672                                   &i_num_encodings, &p_enc )
1673                  != Success )
1674             {
1675                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1676                 continue;
1677             }
1678
1679             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1680             {
1681                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1682                                       " numerator=%d, denominator=%d",
1683                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1684                              p_enc[i_enc].width, p_enc[i_enc].height,
1685                              p_enc[i_enc].rate.numerator,
1686                              p_enc[i_enc].rate.denominator );
1687             }
1688
1689             if( p_enc != NULL )
1690             {
1691                 XvFreeEncodingInfo( p_enc );
1692             }
1693
1694             msg_Dbg( p_vout, " attribute list:" );
1695             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1696                                             i_selected_port,
1697                                             &i_num_attributes );
1698             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1699             {
1700                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1701                       p_attr[i_attr].name,
1702                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1703                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1704                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1705             }
1706
1707             if( p_attr != NULL )
1708             {
1709                 XFree( p_attr );
1710             }
1711 #endif
1712         }
1713
1714         if( p_formats != NULL )
1715         {
1716             XFree( p_formats );
1717         }
1718
1719     }
1720
1721     if( i_num_adaptors > 0 )
1722     {
1723         XvFreeAdaptorInfo( p_adaptor );
1724     }
1725
1726     if( i_selected_port == -1 )
1727     {
1728         if( i_requested_adaptor == -1 )
1729         {
1730             msg_Warn( p_vout, "no free XVideo port found for format "
1731                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1732         }
1733         else
1734         {
1735             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1736                        "XVideo port for format 0x%.8x (%4.4s)",
1737                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1738         }
1739     }
1740
1741     return i_selected_port;
1742 }
1743
1744 /*****************************************************************************
1745  * XVideoReleasePort: release YUV12 port
1746  *****************************************************************************/
1747 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1748 {
1749     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1750 }
1751 #endif
1752
1753 /*****************************************************************************
1754  * InitDisplay: open and initialize X11 device
1755  *****************************************************************************
1756  * Create a window according to video output given size, and set other
1757  * properties according to the display properties.
1758  *****************************************************************************/
1759 static int InitDisplay( vout_thread_t *p_vout )
1760 {
1761 #ifdef MODULE_NAME_IS_x11
1762     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1763     XVisualInfo *               p_xvisual;           /* visuals informations */
1764     XVisualInfo                 xvisual_template;         /* visual template */
1765     int                         i_count;                       /* array size */
1766 #endif
1767
1768 #ifdef HAVE_SYS_SHM_H
1769     p_vout->p_sys->b_shm = 0;
1770
1771     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1772     {
1773 #   ifdef SYS_DARWIN
1774         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1775 #   else
1776         p_vout->p_sys->b_shm =
1777                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1778 #   endif
1779
1780         if( !p_vout->p_sys->b_shm )
1781         {
1782             msg_Warn( p_vout, "XShm video extension is unavailable" );
1783         }
1784     }
1785     else
1786     {
1787         msg_Dbg( p_vout, "disabling XShm video extension" );
1788     }
1789
1790 #else
1791     msg_Warn( p_vout, "XShm video extension is unavailable" );
1792
1793 #endif
1794
1795 #ifdef MODULE_NAME_IS_xvideo
1796     /* XXX The brightness and contrast values should be read from environment
1797      * XXX variables... */
1798 #if 0
1799     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1800     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1801 #endif
1802 #endif
1803
1804 #ifdef MODULE_NAME_IS_x11
1805     /* Initialize structure */
1806     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1807
1808     /* Get screen depth */
1809     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1810                                                    p_vout->p_sys->i_screen );
1811     switch( p_vout->p_sys->i_screen_depth )
1812     {
1813     case 8:
1814         /*
1815          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1816          */
1817         xvisual_template.screen =   p_vout->p_sys->i_screen;
1818         xvisual_template.class =    DirectColor;
1819         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1820                                     VisualScreenMask | VisualClassMask,
1821                                     &xvisual_template, &i_count );
1822         if( p_xvisual == NULL )
1823         {
1824             msg_Err( p_vout, "no PseudoColor visual available" );
1825             return VLC_EGENERIC;
1826         }
1827         p_vout->p_sys->i_bytes_per_pixel = 1;
1828         p_vout->output.pf_setpalette = SetPalette;
1829         break;
1830     case 15:
1831     case 16:
1832     case 24:
1833     default:
1834         /*
1835          * Screen depth is higher than 8bpp. TrueColor visual is used.
1836          */
1837         xvisual_template.screen =   p_vout->p_sys->i_screen;
1838         xvisual_template.class =    TrueColor;
1839         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1840                                     VisualScreenMask | VisualClassMask,
1841                                     &xvisual_template, &i_count );
1842         if( p_xvisual == NULL )
1843         {
1844             msg_Err( p_vout, "no TrueColor visual available" );
1845             return VLC_EGENERIC;
1846         }
1847
1848         p_vout->output.i_rmask = p_xvisual->red_mask;
1849         p_vout->output.i_gmask = p_xvisual->green_mask;
1850         p_vout->output.i_bmask = p_xvisual->blue_mask;
1851
1852         /* There is no difference yet between 3 and 4 Bpp. The only way
1853          * to find the actual number of bytes per pixel is to list supported
1854          * pixmap formats. */
1855         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1856         p_vout->p_sys->i_bytes_per_pixel = 0;
1857
1858         for( ; i_count-- ; p_formats++ )
1859         {
1860             /* Under XFree4.0, the list contains pixmap formats available
1861              * through all video depths ; so we have to check against current
1862              * depth. */
1863             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
1864             {
1865                 if( p_formats->bits_per_pixel / 8
1866                         > (int)p_vout->p_sys->i_bytes_per_pixel )
1867                 {
1868                     p_vout->p_sys->i_bytes_per_pixel =
1869                                                p_formats->bits_per_pixel / 8;
1870                 }
1871             }
1872         }
1873         break;
1874     }
1875     p_vout->p_sys->p_visual = p_xvisual->visual;
1876     XFree( p_xvisual );
1877 #endif
1878
1879     return VLC_SUCCESS;
1880 }
1881
1882 #ifdef HAVE_SYS_SHM_H
1883 /*****************************************************************************
1884  * CreateShmImage: create an XImage or XvImage using shared memory extension
1885  *****************************************************************************
1886  * Prepare an XImage or XvImage for display function.
1887  * The order of the operations respects the recommandations of the mit-shm
1888  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1889  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1890  *****************************************************************************/
1891 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1892                                     Display* p_display, EXTRA_ARGS_SHM,
1893                                     int i_width, int i_height )
1894 {
1895     IMAGE_TYPE *p_image;
1896
1897     /* Create XImage / XvImage */
1898 #ifdef MODULE_NAME_IS_xvideo
1899     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1900                                 i_width, i_height, p_shm );
1901 #else
1902     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1903                                p_shm, i_width, i_height );
1904 #endif
1905     if( p_image == NULL )
1906     {
1907         msg_Err( p_vout, "image creation failed" );
1908         return NULL;
1909     }
1910
1911     /* Allocate shared memory segment - 0776 set the access permission
1912      * rights (like umask), they are not yet supported by all X servers */
1913     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1914     if( p_shm->shmid < 0 )
1915     {
1916         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1917                          strerror( errno ) );
1918         IMAGE_FREE( p_image );
1919         return NULL;
1920     }
1921
1922     /* Attach shared memory segment to process (read/write) */
1923     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1924     if(! p_shm->shmaddr )
1925     {
1926         msg_Err( p_vout, "cannot attach shared memory (%s)",
1927                          strerror(errno));
1928         IMAGE_FREE( p_image );
1929         shmctl( p_shm->shmid, IPC_RMID, 0 );
1930         return NULL;
1931     }
1932
1933     /* Read-only data. We won't be using XShmGetImage */
1934     p_shm->readOnly = True;
1935
1936     /* Attach shared memory segment to X server */
1937     if( XShmAttach( p_display, p_shm ) == False )
1938     {
1939         msg_Err( p_vout, "cannot attach shared memory to X server" );
1940         IMAGE_FREE( p_image );
1941         shmctl( p_shm->shmid, IPC_RMID, 0 );
1942         shmdt( p_shm->shmaddr );
1943         return NULL;
1944     }
1945
1946     /* Send image to X server. This instruction is required, since having
1947      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1948      * and remember NOT to use XFlush ! */
1949     XSync( p_display, False );
1950
1951 #if 0
1952     /* Mark the shm segment to be removed when there are no more
1953      * attachements, so it is automatic on process exit or after shmdt */
1954     shmctl( p_shm->shmid, IPC_RMID, 0 );
1955 #endif
1956
1957     return p_image;
1958 }
1959 #endif
1960
1961 /*****************************************************************************
1962  * CreateImage: create an XImage or XvImage
1963  *****************************************************************************
1964  * Create a simple image used as a buffer.
1965  *****************************************************************************/
1966 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
1967                                  Display *p_display, EXTRA_ARGS,
1968                                  int i_width, int i_height )
1969 {
1970     byte_t *    p_data;                           /* image data storage zone */
1971     IMAGE_TYPE *p_image;
1972 #ifdef MODULE_NAME_IS_x11
1973     int         i_quantum;                     /* XImage quantum (see below) */
1974     int         i_bytes_per_line;
1975 #endif
1976
1977     /* Allocate memory for image */
1978 #ifdef MODULE_NAME_IS_xvideo
1979     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1980 #else
1981     i_bytes_per_line = i_width * i_bytes_per_pixel;
1982     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1983 #endif
1984     if( !p_data )
1985     {
1986         msg_Err( p_vout, "out of memory" );
1987         return NULL;
1988     }
1989
1990 #ifdef MODULE_NAME_IS_x11
1991     /* Optimize the quantum of a scanline regarding its size - the quantum is
1992        a diviser of the number of bits between the start of two scanlines. */
1993     if( i_bytes_per_line & 0xf )
1994     {
1995         i_quantum = 0x8;
1996     }
1997     else if( i_bytes_per_line & 0x10 )
1998     {
1999         i_quantum = 0x10;
2000     }
2001     else
2002     {
2003         i_quantum = 0x20;
2004     }
2005 #endif
2006
2007     /* Create XImage. p_data will be automatically freed */
2008 #ifdef MODULE_NAME_IS_xvideo
2009     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2010                              p_data, i_width, i_height );
2011 #else
2012     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2013                             p_data, i_width, i_height, i_quantum, 0 );
2014 #endif
2015     if( p_image == NULL )
2016     {
2017         msg_Err( p_vout, "XCreateImage() failed" );
2018         free( p_data );
2019         return NULL;
2020     }
2021
2022     return p_image;
2023 }
2024
2025 #ifdef MODULE_NAME_IS_x11
2026 /*****************************************************************************
2027  * SetPalette: sets an 8 bpp palette
2028  *****************************************************************************
2029  * This function sets the palette given as an argument. It does not return
2030  * anything, but could later send information on which colors it was unable
2031  * to set.
2032  *****************************************************************************/
2033 static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
2034 {
2035     int i;
2036     XColor p_colors[255];
2037
2038     /* allocate palette */
2039     for( i = 0; i < 255; i++ )
2040     {
2041         /* kludge: colors are indexed reversely because color 255 seems
2042          * to be reserved for black even if we try to set it to white */
2043         p_colors[ i ].pixel = 255 - i;
2044         p_colors[ i ].pad   = 0;
2045         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2046         p_colors[ i ].red   = red[ 255 - i ];
2047         p_colors[ i ].blue  = blue[ 255 - i ];
2048         p_colors[ i ].green = green[ 255 - i ];
2049     }
2050
2051     XStoreColors( p_vout->p_sys->p_display,
2052                   p_vout->p_sys->colormap, p_colors, 255 );
2053 }
2054 #endif