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 (Centrale Réseaux) and its contributors
   5  * $Id$
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Sam Hocevar <sam@zoy.org>
   9  *          David Kennedy <dkennedy@tinytoad.com>
  10  *          Gildas Bazin <gbazin@videolan.org>
  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 #include <vlc_keys.h>
  38
  39 #ifdef HAVE_MACHINE_PARAM_H
  40     /* BSD */
  41 #   include <machine/param.h>
  42 #   include <sys/types.h>                                  /* typedef ushort */
  43 #   include <sys/ipc.h>
  44 #endif
  45
  46 #ifndef WIN32
  47 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  48 #endif
  49
  50 #ifdef HAVE_SYS_SHM_H
  51 #   include <sys/shm.h>                                /* shmget(), shmctl() */
  52 #endif
  53
  54 #include <X11/Xlib.h>
  55 #include <X11/Xproto.h>
  56 #include <X11/Xmd.h>
  57 #include <X11/Xutil.h>
  58 #include <X11/keysym.h>
  59 #ifdef HAVE_SYS_SHM_H
  60 #   include <X11/extensions/XShm.h>
  61 #endif
  62 #ifdef DPMSINFO_IN_DPMS_H
  63 #   include <X11/extensions/dpms.h>
  64 #endif
  65
  66 #ifdef MODULE_NAME_IS_xvideo
  67 #   include <X11/extensions/Xv.h>
  68 #   include <X11/extensions/Xvlib.h>
  69 #endif
  70
  71 #ifdef MODULE_NAME_IS_glx
  72 #   include <GL/glx.h>
  73 #endif
  74
  75 #ifdef HAVE_XINERAMA
  76 #   include <X11/extensions/Xinerama.h>
  77 #endif
  78
  79 #include "xcommon.h"
  80
  81 /*****************************************************************************
  82  * Local prototypes
  83  *****************************************************************************/
  84 int  E_(Activate)   ( vlc_object_t * );
  85 void E_(Deactivate) ( vlc_object_t * );
  86
  87 static int  InitVideo      ( vout_thread_t * );
  88 static void EndVideo       ( vout_thread_t * );
  89 static void DisplayVideo   ( vout_thread_t *, picture_t * );
  90 static int  ManageVideo    ( vout_thread_t * );
  91 static int  Control        ( vout_thread_t *, int, va_list );
  92
  93 static int  InitDisplay    ( vout_thread_t * );
  94
  95 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
  96 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
  97
  98 static int  NewPicture     ( vout_thread_t *, picture_t * );
  99 static void FreePicture    ( vout_thread_t *, picture_t * );
 100
 101 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
 102                                     Display *, EXTRA_ARGS, int, int );
 103 #ifdef HAVE_SYS_SHM_H
 104 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
 105                                     Display *, EXTRA_ARGS_SHM, int, int );
 106 static vlc_bool_t b_shm = VLC_TRUE;
 107 #endif
 108
 109 static void ToggleFullScreen      ( vout_thread_t * );
 110
 111 static void EnableXScreenSaver    ( vout_thread_t * );
 112 static void DisableXScreenSaver   ( vout_thread_t * );
 113
 114 static void CreateCursor   ( vout_thread_t * );
 115 static void DestroyCursor  ( vout_thread_t * );
 116 static void ToggleCursor   ( vout_thread_t * );
 117
 118 #ifdef MODULE_NAME_IS_xvideo
 119 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
 120 static void XVideoReleasePort( vout_thread_t *, int );
 121 #endif
 122
 123 #ifdef MODULE_NAME_IS_x11
 124 static void SetPalette     ( vout_thread_t *,
 125                              uint16_t *, uint16_t *, uint16_t * );
 126 #endif
 127
 128 static void TestNetWMSupport( vout_thread_t * );
 129 static int ConvertKey( int );
 130
 131 static int WindowOnTop( vout_thread_t *, vlc_bool_t );
 132
 133 static int X11ErrorHandler( Display *, XErrorEvent * );
 134
 135 /*****************************************************************************
 136  * Activate: allocate X11 video thread output method
 137  *****************************************************************************
 138  * This function allocate and initialize a X11 vout method. It uses some of the
 139  * vout properties to choose the window size, and change them according to the
 140  * actual properties of the display.
 141  *****************************************************************************/
 142 int E_(Activate) ( vlc_object_t *p_this )
 143 {
 144     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 145     char *        psz_display;
 146     vlc_value_t   val;
 147
 148 #ifdef MODULE_NAME_IS_xvideo
 149     char *       psz_chroma;
 150     vlc_fourcc_t i_chroma = 0;
 151     vlc_bool_t   b_chroma = 0;
 152 #endif
 153
 154     p_vout->pf_init = InitVideo;
 155     p_vout->pf_end = EndVideo;
 156     p_vout->pf_manage = ManageVideo;
 157     p_vout->pf_render = NULL;
 158     p_vout->pf_display = DisplayVideo;
 159     p_vout->pf_control = Control;
 160
 161     /* Allocate structure */
 162     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 163     if( p_vout->p_sys == NULL )
 164     {
 165         msg_Err( p_vout, "out of memory" );
 166         return VLC_ENOMEM;
 167     }
 168
 169     vlc_mutex_init( p_vout, &p_vout->p_sys->lock );
 170
 171     /* Open display, using the "display" config variable or the DISPLAY
 172      * environment variable */
 173     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
 174
 175     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 176
 177     if( p_vout->p_sys->p_display == NULL )                          /* error */
 178     {
 179         msg_Err( p_vout, "cannot open display %s",
 180                          XDisplayName( psz_display ) );
 181         free( p_vout->p_sys );
 182         if( psz_display ) free( psz_display );
 183         return VLC_EGENERIC;
 184     }
 185     if( psz_display ) free( psz_display );
 186
 187     /* Replace error handler so we can intercept some non-fatal errors */
 188     XSetErrorHandler( X11ErrorHandler );
 189
 190     /* Get a screen ID matching the XOpenDisplay return value */
 191     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 192
 193 #ifdef MODULE_NAME_IS_xvideo
 194     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
 195     if( psz_chroma )
 196     {
 197         if( strlen( psz_chroma ) >= 4 )
 198         {
 199             /* Do not use direct assignment because we are not sure of the
 200              * alignment. */
 201             memcpy(&i_chroma, psz_chroma, 4);
 202             b_chroma = 1;
 203         }
 204
 205         free( psz_chroma );
 206     }
 207
 208     if( b_chroma )
 209     {
 210         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
 211                  i_chroma, (char*)&i_chroma );
 212     }
 213     else
 214     {
 215         i_chroma = p_vout->render.i_chroma;
 216     }
 217
 218     /* Check that we have access to an XVideo port providing this chroma */
 219     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, VLC2X11_FOURCC(i_chroma),
 220                                              &p_vout->output.i_chroma );
 221     if( p_vout->p_sys->i_xvport < 0 )
 222     {
 223         /* If a specific chroma format was requested, then we don't try to
 224          * be cleverer than the user. He knew pretty well what he wanted. */
 225         if( b_chroma )
 226         {
 227             XCloseDisplay( p_vout->p_sys->p_display );
 228             free( p_vout->p_sys );
 229             return VLC_EGENERIC;
 230         }
 231
 232         /* It failed, but it's not completely lost ! We try to open an
 233          * XVideo port for an YUY2 picture. We'll need to do an YUV
 234          * conversion, but at least it has got scaling. */
 235         p_vout->p_sys->i_xvport =
 236                         XVideoGetPort( p_vout, X11_FOURCC('Y','U','Y','2'),
 237                                                &p_vout->output.i_chroma );
 238         if( p_vout->p_sys->i_xvport < 0 )
 239         {
 240             /* It failed, but it's not completely lost ! We try to open an
 241              * XVideo port for a simple 16bpp RGB picture. We'll need to do
 242              * an YUV conversion, but at least it has got scaling. */
 243             p_vout->p_sys->i_xvport =
 244                             XVideoGetPort( p_vout, X11_FOURCC('R','V','1','6'),
 245                                                    &p_vout->output.i_chroma );
 246             if( p_vout->p_sys->i_xvport < 0 )
 247             {
 248                 XCloseDisplay( p_vout->p_sys->p_display );
 249                 free( p_vout->p_sys );
 250                 return VLC_EGENERIC;
 251             }
 252         }
 253     }
 254     p_vout->output.i_chroma = X112VLC_FOURCC(p_vout->output.i_chroma);
 255 #endif
 256
 257     /* Create blank cursor (for mouse cursor autohiding) */
 258     p_vout->p_sys->i_time_mouse_last_moved = mdate();
 259     p_vout->p_sys->b_mouse_pointer_visible = 1;
 260     CreateCursor( p_vout );
 261
 262     /* Set main window's size */
 263     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
 264     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
 265
 266     /* Spawn base window - this window will include the video output window,
 267      * but also command buttons, subtitles and other indicators */
 268     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
 269     {
 270         msg_Err( p_vout, "cannot create X11 window" );
 271         DestroyCursor( p_vout );
 272         XCloseDisplay( p_vout->p_sys->p_display );
 273         free( p_vout->p_sys );
 274         return VLC_EGENERIC;
 275     }
 276
 277     /* Open and initialize device. */
 278     if( InitDisplay( p_vout ) )
 279     {
 280         msg_Err( p_vout, "cannot initialize X11 display" );
 281         DestroyCursor( p_vout );
 282         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 283         XCloseDisplay( p_vout->p_sys->p_display );
 284         free( p_vout->p_sys );
 285         return VLC_EGENERIC;
 286     }
 287
 288     /* Disable screen saver */
 289     DisableXScreenSaver( p_vout );
 290
 291     /* Misc init */
 292     p_vout->p_sys->b_altfullscreen = 0;
 293     p_vout->p_sys->i_time_button_last_pressed = 0;
 294
 295     TestNetWMSupport( p_vout );
 296
 297     /* Variable to indicate if the window should be on top of others */
 298     /* Trigger a callback right now */
 299     var_Get( p_vout, "video-on-top", &val );
 300     var_Set( p_vout, "video-on-top", val );
 301
 302     return VLC_SUCCESS;
 303 }
 304
 305 /*****************************************************************************
 306  * Deactivate: destroy X11 video thread output method
 307  *****************************************************************************
 308  * Terminate an output method created by Open
 309  *****************************************************************************/
 310 void E_(Deactivate) ( vlc_object_t *p_this )
 311 {
 312     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 313
 314     /* If the fullscreen window is still open, close it */
 315     if( p_vout->b_fullscreen )
 316     {
 317         ToggleFullScreen( p_vout );
 318     }
 319
 320     /* Restore cursor if it was blanked */
 321     if( !p_vout->p_sys->b_mouse_pointer_visible )
 322     {
 323         ToggleCursor( p_vout );
 324     }
 325
 326 #ifdef MODULE_NAME_IS_x11
 327     /* Destroy colormap */
 328     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 329     {
 330         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 331     }
 332 #elif defined(MODULE_NAME_IS_xvideo)
 333     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
 334 #endif
 335
 336     DestroyCursor( p_vout );
 337     EnableXScreenSaver( p_vout );
 338     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 339
 340     XCloseDisplay( p_vout->p_sys->p_display );
 341
 342     /* Destroy structure */
 343     vlc_mutex_destroy( &p_vout->p_sys->lock );
 344     free( p_vout->p_sys );
 345 }
 346
 347 /*****************************************************************************
 348  * InitVideo: initialize X11 video thread output method
 349  *****************************************************************************
 350  * This function create the XImages needed by the output thread. It is called
 351  * at the beginning of the thread, but also each time the window is resized.
 352  *****************************************************************************/
 353 static int InitVideo( vout_thread_t *p_vout )
 354 {
 355     int i_index;
 356     picture_t *p_pic;
 357
 358     I_OUTPUTPICTURES = 0;
 359
 360 #ifdef MODULE_NAME_IS_xvideo
 361     /* Initialize the output structure; we already found an XVideo port,
 362      * and the corresponding chroma we will be using. Since we can
 363      * arbitrary scale, stick to the coordinates and aspect. */
 364     p_vout->output.i_width  = p_vout->render.i_width;
 365     p_vout->output.i_height = p_vout->render.i_height;
 366     p_vout->output.i_aspect = p_vout->render.i_aspect;
 367
 368     switch( p_vout->output.i_chroma )
 369     {
 370         case VLC_FOURCC('R','V','1','5'):
 371             p_vout->output.i_rmask = 0x001f;
 372             p_vout->output.i_gmask = 0x07e0;
 373             p_vout->output.i_bmask = 0xf800;
 374             break;
 375         case VLC_FOURCC('R','V','1','6'):
 376             p_vout->output.i_rmask = 0x001f;
 377             p_vout->output.i_gmask = 0x03e0;
 378             p_vout->output.i_bmask = 0x7c00;
 379             break;
 380     }
 381
 382 #elif defined(MODULE_NAME_IS_x11)
 383     /* Initialize the output structure: RGB with square pixels, whatever
 384      * the input format is, since it's the only format we know */
 385     switch( p_vout->p_sys->i_screen_depth )
 386     {
 387         case 8: /* FIXME: set the palette */
 388             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
 389         case 15:
 390             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
 391         case 16:
 392             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
 393         case 24:
 394         case 32:
 395             p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
 396         default:
 397             msg_Err( p_vout, "unknown screen depth %i",
 398                      p_vout->p_sys->i_screen_depth );
 399             return VLC_SUCCESS;
 400     }
 401
 402     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 403                        p_vout->p_sys->p_win->i_height,
 404                        &i_index, &i_index,
 405                        &p_vout->output.i_width, &p_vout->output.i_height );
 406
 407     /* Assume we have square pixels */
 408     p_vout->output.i_aspect = p_vout->output.i_width
 409                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
 410 #endif
 411
 412     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 413     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 414     {
 415         p_pic = NULL;
 416
 417         /* Find an empty picture slot */
 418         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 419         {
 420           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 421             {
 422                 p_pic = p_vout->p_picture + i_index;
 423                 break;
 424             }
 425         }
 426
 427         /* Allocate the picture */
 428         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 429         {
 430             break;
 431         }
 432
 433         p_pic->i_status = DESTROYED_PICTURE;
 434         p_pic->i_type   = DIRECT_PICTURE;
 435
 436         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 437
 438         I_OUTPUTPICTURES++;
 439     }
 440
 441     if( p_vout->output.i_chroma == VLC_FOURCC('Y','V','1','2') )
 442     {
 443         /* U and V inverted compared to I420
 444          * Fixme: this should be handled by the vout core */
 445         p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
 446     }
 447
 448     return VLC_SUCCESS;
 449 }
 450
 451 /*****************************************************************************
 452  * DisplayVideo: displays previously rendered output
 453  *****************************************************************************
 454  * This function sends the currently rendered image to X11 server.
 455  * (The Xv extension takes care of "double-buffering".)
 456  *****************************************************************************/
 457 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 458 {
 459     int i_width, i_height, i_x, i_y;
 460
 461     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 462                        p_vout->p_sys->p_win->i_height,
 463                        &i_x, &i_y, &i_width, &i_height );
 464
 465     vlc_mutex_lock( &p_vout->p_sys->lock );
 466
 467 #ifdef HAVE_SYS_SHM_H
 468     if( p_vout->p_sys->b_shm )
 469     {
 470         /* Display rendered image using shared memory extension */
 471 #   ifdef MODULE_NAME_IS_xvideo
 472         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 473                        p_vout->p_sys->p_win->video_window,
 474                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 475                        0 /*src_x*/, 0 /*src_y*/,
 476                        p_vout->output.i_width, p_vout->output.i_height,
 477                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 478                        False /* Don't put True here or you'll waste your CPU */ );
 479 #   else
 480         XShmPutImage( p_vout->p_sys->p_display,
 481                       p_vout->p_sys->p_win->video_window,
 482                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 483                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 484                       p_vout->output.i_width, p_vout->output.i_height,
 485                       False /* Don't put True here ! */ );
 486 #   endif
 487     }
 488     else
 489 #endif /* HAVE_SYS_SHM_H */
 490     {
 491         /* Use standard XPutImage -- this is gonna be slow ! */
 492 #ifdef MODULE_NAME_IS_xvideo
 493         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 494                     p_vout->p_sys->p_win->video_window,
 495                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 496                     0 /*src_x*/, 0 /*src_y*/,
 497                     p_vout->output.i_width, p_vout->output.i_height,
 498                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 499 #else
 500         XPutImage( p_vout->p_sys->p_display,
 501                    p_vout->p_sys->p_win->video_window,
 502                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 503                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 504                    p_vout->output.i_width, p_vout->output.i_height );
 505 #endif
 506     }
 507
 508     /* Make sure the command is sent now - do NOT use XFlush !*/
 509     XSync( p_vout->p_sys->p_display, False );
 510
 511     vlc_mutex_unlock( &p_vout->p_sys->lock );
 512 }
 513
 514 /*****************************************************************************
 515  * ManageVideo: handle X11 events
 516  *****************************************************************************
 517  * This function should be called regularly by video output thread. It manages
 518  * X11 events and allows window resizing. It returns a non null value on
 519  * error.
 520  *****************************************************************************/
 521 static int ManageVideo( vout_thread_t *p_vout )
 522 {
 523     XEvent      xevent;                                         /* X11 event */
 524     vlc_value_t val;
 525
 526     vlc_mutex_lock( &p_vout->p_sys->lock );
 527
 528     /* Handle events from the owner window */
 529     if( p_vout->p_sys->p_win->owner_window )
 530     {
 531         while( XCheckWindowEvent( p_vout->p_sys->p_display,
 532                                   p_vout->p_sys->p_win->owner_window,
 533                                   StructureNotifyMask, &xevent ) == True )
 534         {
 535             /* ConfigureNotify event: prepare  */
 536             if( xevent.type == ConfigureNotify )
 537             {
 538                 /* Update dimensions */
 539                 XResizeWindow( p_vout->p_sys->p_display,
 540                                p_vout->p_sys->p_win->base_window,
 541                                xevent.xconfigure.width,
 542                                xevent.xconfigure.height );
 543             }
 544         }
 545     }
 546
 547     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 548      * output window's size changed, MapNotify and UnmapNotify to know if the
 549      * window is mapped (and if the display is useful), and ClientMessages
 550      * to intercept window destruction requests */
 551
 552     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 553                               p_vout->p_sys->p_win->base_window,
 554                               StructureNotifyMask | KeyPressMask |
 555                               ButtonPressMask | ButtonReleaseMask |
 556                               PointerMotionMask | Button1MotionMask , &xevent )
 557            == True )
 558     {
 559         /* ConfigureNotify event: prepare  */
 560         if( xevent.type == ConfigureNotify )
 561         {
 562             if( (unsigned int)xevent.xconfigure.width
 563                    != p_vout->p_sys->p_win->i_width
 564               || (unsigned int)xevent.xconfigure.height
 565                     != p_vout->p_sys->p_win->i_height )
 566             {
 567                 /* Update dimensions */
 568                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
 569                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
 570                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
 571             }
 572         }
 573         /* Keyboard event */
 574         else if( xevent.type == KeyPress )
 575         {
 576             unsigned int state = xevent.xkey.state;
 577             KeySym x_key_symbol;
 578             char i_key;                                   /* ISO Latin-1 key */
 579
 580             /* We may have keys like F1 trough F12, ESC ... */
 581             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 582                                              xevent.xkey.keycode, 0 );
 583             val.i_int = ConvertKey( (int)x_key_symbol );
 584
 585             xevent.xkey.state &= ~ShiftMask;
 586             xevent.xkey.state &= ~ControlMask;
 587             xevent.xkey.state &= ~Mod1Mask;
 588
 589             if( !val.i_int &&
 590                 XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 591             {
 592                 /* "Normal Keys"
 593                  * The reason why I use this instead of XK_0 is that
 594                  * with XLookupString, we don't have to care about
 595                  * keymaps. */
 596                 val.i_int = i_key;
 597             }
 598
 599             if( val.i_int )
 600             {
 601                 if( state & ShiftMask )
 602                 {
 603                     val.i_int |= KEY_MODIFIER_SHIFT;
 604                 }
 605                 if( state & ControlMask )
 606                 {
 607                     val.i_int |= KEY_MODIFIER_CTRL;
 608                 }
 609                 if( state & Mod1Mask )
 610                 {
 611                     val.i_int |= KEY_MODIFIER_ALT;
 612                 }
 613                 var_Set( p_vout->p_vlc, "key-pressed", val );
 614             }
 615         }
 616         /* Mouse click */
 617         else if( xevent.type == ButtonPress )
 618         {
 619             switch( ((XButtonEvent *)&xevent)->button )
 620             {
 621                 case Button1:
 622                     var_Get( p_vout, "mouse-button-down", &val );
 623                     val.i_int |= 1;
 624                     var_Set( p_vout, "mouse-button-down", val );
 625
 626                     /* detect double-clicks */
 627                     if( ( ((XButtonEvent *)&xevent)->time -
 628                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 629                     {
 630                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 631                     }
 632
 633                     p_vout->p_sys->i_time_button_last_pressed =
 634                         ((XButtonEvent *)&xevent)->time;
 635                     break;
 636                 case Button2:
 637                     var_Get( p_vout, "mouse-button-down", &val );
 638                     val.i_int |= 2;
 639                     var_Set( p_vout, "mouse-button-down", val );
 640                     break;
 641
 642                 case Button3:
 643                     var_Get( p_vout, "mouse-button-down", &val );
 644                     val.i_int |= 4;
 645                     var_Set( p_vout, "mouse-button-down", val );
 646                     break;
 647
 648                 case Button4:
 649                     var_Get( p_vout, "mouse-button-down", &val );
 650                     val.i_int |= 8;
 651                     var_Set( p_vout, "mouse-button-down", val );
 652                     break;
 653
 654                 case Button5:
 655                     var_Get( p_vout, "mouse-button-down", &val );
 656                     val.i_int |= 16;
 657                     var_Set( p_vout, "mouse-button-down", val );
 658                     break;
 659             }
 660         }
 661         /* Mouse release */
 662         else if( xevent.type == ButtonRelease )
 663         {
 664             switch( ((XButtonEvent *)&xevent)->button )
 665             {
 666                 case Button1:
 667                     var_Get( p_vout, "mouse-button-down", &val );
 668                     val.i_int &= ~1;
 669                     var_Set( p_vout, "mouse-button-down", val );
 670
 671                     val.b_bool = VLC_TRUE;
 672                     var_Set( p_vout, "mouse-clicked", val );
 673                     break;
 674
 675                 case Button2:
 676                     {
 677                         playlist_t *p_playlist;
 678
 679                         var_Get( p_vout, "mouse-button-down", &val );
 680                         val.i_int &= ~2;
 681                         var_Set( p_vout, "mouse-button-down", val );
 682
 683                         p_playlist = vlc_object_find( p_vout,
 684                                                       VLC_OBJECT_PLAYLIST,
 685                                                       FIND_ANYWHERE );
 686                         if( p_playlist != NULL )
 687                         {
 688                             vlc_value_t val;
 689                             var_Get( p_playlist, "intf-show", &val );
 690                             val.b_bool = !val.b_bool;
 691                             var_Set( p_playlist, "intf-show", val );
 692                             vlc_object_release( p_playlist );
 693                         }
 694                     }
 695                     break;
 696
 697                 case Button3:
 698                     {
 699                         intf_thread_t *p_intf;
 700                         playlist_t *p_playlist;
 701
 702                         var_Get( p_vout, "mouse-button-down", &val );
 703                         val.i_int &= ~4;
 704                         var_Set( p_vout, "mouse-button-down", val );
 705                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 706                                                           FIND_ANYWHERE );
 707                         if( p_intf )
 708                         {
 709                             p_intf->b_menu_change = 1;
 710                             vlc_object_release( p_intf );
 711                         }
 712
 713                         p_playlist = vlc_object_find( p_vout,
 714                                                       VLC_OBJECT_PLAYLIST,
 715                                                       FIND_ANYWHERE );
 716                         if( p_playlist != NULL )
 717                         {
 718                             vlc_value_t val; val.b_bool = VLC_TRUE;
 719                             var_Set( p_playlist, "intf-popupmenu", val );
 720                             vlc_object_release( p_playlist );
 721                         }
 722                     }
 723                     break;
 724
 725                 case Button4:
 726                     var_Get( p_vout, "mouse-button-down", &val );
 727                     val.i_int &= ~8;
 728                     var_Set( p_vout, "mouse-button-down", val );
 729                     break;
 730
 731                 case Button5:
 732                     var_Get( p_vout, "mouse-button-down", &val );
 733                     val.i_int &= ~16;
 734                     var_Set( p_vout, "mouse-button-down", val );
 735                     break;
 736
 737             }
 738         }
 739         /* Mouse move */
 740         else if( xevent.type == MotionNotify )
 741         {
 742             int i_width, i_height, i_x, i_y;
 743             vlc_value_t val;
 744
 745             /* somewhat different use for vout_PlacePicture:
 746              * here the values are needed to give to mouse coordinates
 747              * in the original picture space */
 748             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 749                                p_vout->p_sys->p_win->i_height,
 750                                &i_x, &i_y, &i_width, &i_height );
 751
 752             val.i_int = ( xevent.xmotion.x - i_x )
 753                          * p_vout->render.i_width / i_width;
 754             var_Set( p_vout, "mouse-x", val );
 755             val.i_int = ( xevent.xmotion.y - i_y )
 756                          * p_vout->render.i_height / i_height;
 757             var_Set( p_vout, "mouse-y", val );
 758
 759             val.b_bool = VLC_TRUE;
 760             var_Set( p_vout, "mouse-moved", val );
 761
 762             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 763             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 764             {
 765                 ToggleCursor( p_vout );
 766             }
 767         }
 768         else if( xevent.type == ReparentNotify /* XXX: why do we get this? */
 769                   || xevent.type == MapNotify
 770                   || xevent.type == UnmapNotify )
 771         {
 772             /* Ignore these events */
 773         }
 774         else /* Other events */
 775         {
 776             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 777         }
 778     }
 779
 780     /* Handle events for video output sub-window */
 781     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 782                               p_vout->p_sys->p_win->video_window,
 783                               ExposureMask, &xevent ) == True )
 784     {
 785         /* Window exposed (only handled if stream playback is paused) */
 786         if( xevent.type == Expose )
 787         {
 788             if( ((XExposeEvent *)&xevent)->count == 0 )
 789             {
 790                 /* (if this is the last a collection of expose events...) */
 791 #if 0
 792                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
 793                 {
 794                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
 795                                                    ->stream.control.i_status )
 796                     {
 797                         /* XVideoDisplay( p_vout )*/;
 798                     }
 799                 }
 800 #endif
 801             }
 802         }
 803     }
 804
 805     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 806      * are handled - according to the man pages, the format is always 32
 807      * in this case */
 808     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 809                              ClientMessage, &xevent ) )
 810     {
 811         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
 812                && ((Atom)xevent.xclient.data.l[0]
 813                      == p_vout->p_sys->p_win->wm_delete_window ) )
 814         {
 815             /* the user wants to close the window */
 816             playlist_t * p_playlist =
 817                 (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 818                                                FIND_ANYWHERE );
 819             if( p_playlist != NULL )
 820             {
 821                 playlist_Stop( p_playlist );
 822                 vlc_object_release( p_playlist );
 823             }
 824         }
 825     }
 826
 827     /*
 828      * Fullscreen Change
 829      */
 830     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 831     {
 832         vlc_value_t val;
 833
 834         /* Update the object variable and trigger callback */
 835         val.b_bool = !p_vout->b_fullscreen;
 836         var_Set( p_vout, "fullscreen", val );
 837
 838         ToggleFullScreen( p_vout );
 839         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 840     }
 841
 842     /*
 843      * Size change
 844      *
 845      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
 846      *  the size flag inside the fullscreen routine)
 847      */
 848     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 849     {
 850         int i_width, i_height, i_x, i_y;
 851
 852         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 853
 854 #ifdef MODULE_NAME_IS_x11
 855         /* We need to signal the vout thread about the size change because it
 856          * is doing the rescaling */
 857         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 858 #endif
 859
 860         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 861                            p_vout->p_sys->p_win->i_height,
 862                            &i_x, &i_y, &i_width, &i_height );
 863
 864         XMoveResizeWindow( p_vout->p_sys->p_display,
 865                            p_vout->p_sys->p_win->video_window,
 866                            i_x, i_y, i_width, i_height );
 867     }
 868
 869     /* Autohide Cursour */
 870     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 871     {
 872         /* Hide the mouse automatically */
 873         if( p_vout->p_sys->b_mouse_pointer_visible )
 874         {
 875             ToggleCursor( p_vout );
 876         }
 877     }
 878
 879     vlc_mutex_unlock( &p_vout->p_sys->lock );
 880
 881     return 0;
 882 }
 883
 884 /*****************************************************************************
 885  * EndVideo: terminate X11 video thread output method
 886  *****************************************************************************
 887  * Destroy the X11 XImages created by Init. It is called at the end of
 888  * the thread, but also each time the window is resized.
 889  *****************************************************************************/
 890 static void EndVideo( vout_thread_t *p_vout )
 891 {
 892     int i_index;
 893
 894     /* Free the direct buffers we allocated */
 895     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 896     {
 897         i_index--;
 898         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 899     }
 900 }
 901
 902 /* following functions are local */
 903
 904 /*****************************************************************************
 905  * CreateWindow: open and set-up X11 main window
 906  *****************************************************************************/
 907 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
 908 {
 909     XSizeHints              xsize_hints;
 910     XSetWindowAttributes    xwindow_attributes;
 911     XGCValues               xgcvalues;
 912     XEvent                  xevent;
 913
 914     vlc_bool_t              b_expose = VLC_FALSE;
 915     vlc_bool_t              b_configure_notify = VLC_FALSE;
 916     vlc_bool_t              b_map_notify = VLC_FALSE;
 917
 918     /* Prepare window manager hints and properties */
 919     p_win->wm_protocols =
 920              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
 921     p_win->wm_delete_window =
 922              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
 923
 924     /* Never have a 0-pixel-wide window */
 925     xsize_hints.min_width = 2;
 926     xsize_hints.min_height = 1;
 927
 928     /* Prepare window attributes */
 929     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 930     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 931                                                      p_vout->p_sys->i_screen);
 932     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 933
 934     if( !p_vout->b_fullscreen )
 935     {
 936         p_win->owner_window =
 937             (Window)vout_RequestWindow( p_vout, &p_win->i_x, &p_win->i_y,
 938                                         &p_win->i_width, &p_win->i_height );
 939
 940         xsize_hints.base_width  = xsize_hints.width = p_win->i_width;
 941         xsize_hints.base_height = xsize_hints.height = p_win->i_height;
 942         xsize_hints.flags       = PSize | PMinSize;
 943
 944         if( p_win->i_x >=0 || p_win->i_y >= 0 )
 945         {
 946             xsize_hints.x = p_win->i_x;
 947             xsize_hints.y = p_win->i_y;
 948             xsize_hints.flags |= PPosition;
 949         }
 950     }
 951     else
 952     {
 953         /* Fullscreen window size and position */
 954         p_win->owner_window = 0;
 955         p_win->i_x = p_win->i_y = 0;
 956         p_win->i_width =
 957             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
 958         p_win->i_height =
 959             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
 960     }
 961
 962     if( !p_win->owner_window )
 963     {
 964         /* Create the window and set hints - the window must receive
 965          * ConfigureNotify events, and until it is displayed, Expose and
 966          * MapNotify events. */
 967
 968         p_win->base_window =
 969             XCreateWindow( p_vout->p_sys->p_display,
 970                            DefaultRootWindow( p_vout->p_sys->p_display ),
 971                            p_win->i_x, p_win->i_y,
 972                            p_win->i_width, p_win->i_height,
 973                            0,
 974                            0, InputOutput, 0,
 975                            CWBackingStore | CWBackPixel | CWEventMask,
 976                            &xwindow_attributes );
 977
 978         if( !p_vout->b_fullscreen )
 979         {
 980             /* Set window manager hints and properties: size hints, command,
 981              * window's name, and accepted protocols */
 982             XSetWMNormalHints( p_vout->p_sys->p_display,
 983                                p_win->base_window, &xsize_hints );
 984             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
 985                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 986
 987             if( !var_GetBool( p_vout, "video-deco") )
 988             {
 989                 Atom prop;
 990                 mwmhints_t mwmhints;
 991
 992                 mwmhints.flags = MWM_HINTS_DECORATIONS;
 993                 mwmhints.decorations = False;
 994
 995                 prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
 996                                     False );
 997
 998                 XChangeProperty( p_vout->p_sys->p_display,
 999                                  p_win->base_window,
1000                                  prop, prop, 32, PropModeReplace,
1001                                  (unsigned char *)&mwmhints,
1002                                  PROP_MWM_HINTS_ELEMENTS );
1003             }
1004             else
1005             {
1006                 XStoreName( p_vout->p_sys->p_display, p_win->base_window,
1007 #ifdef MODULE_NAME_IS_x11
1008                         VOUT_TITLE " (X11 output)"
1009 #elif defined(MODULE_NAME_IS_glx)
1010                         VOUT_TITLE " (GLX output)"
1011 #else
1012                         VOUT_TITLE " (XVideo output)"
1013 #endif
1014                       );
1015             }
1016         }
1017     }
1018     else
1019     {
1020         Window dummy1;
1021         unsigned int dummy2, dummy3;
1022
1023         /* Select events we are interested in. */
1024         XSelectInput( p_vout->p_sys->p_display, p_win->owner_window,
1025                       StructureNotifyMask );
1026
1027         /* Get the parent window's geometry information */
1028         XGetGeometry( p_vout->p_sys->p_display, p_win->owner_window,
1029                       &dummy1, &dummy2, &dummy3,
1030                       &p_win->i_width,
1031                       &p_win->i_height,
1032                       &dummy2, &dummy3 );
1033
1034         /* We are already configured */
1035         b_configure_notify = VLC_TRUE;
1036
1037         /* From man XSelectInput: only one client at a time can select a
1038          * ButtonPress event, so we need to open a new window anyway. */
1039         p_win->base_window =
1040             XCreateWindow( p_vout->p_sys->p_display,
1041                            p_win->owner_window,
1042                            0, 0,
1043                            p_win->i_width, p_win->i_height,
1044                            0,
1045                            0, CopyFromParent, 0,
1046                            CWBackingStore | CWBackPixel | CWEventMask,
1047                            &xwindow_attributes );
1048     }
1049
1050     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
1051         || (p_win->wm_delete_window == None)
1052         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
1053                              &p_win->wm_delete_window, 1 ) )
1054     {
1055         /* WM_DELETE_WINDOW is not supported by window manager */
1056         msg_Warn( p_vout, "missing or bad window manager" );
1057     }
1058
1059     /* Creation of a graphic context that doesn't generate a GraphicsExpose
1060      * event when using functions like XCopyArea */
1061     xgcvalues.graphics_exposures = False;
1062     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
1063                            p_win->base_window,
1064                            GCGraphicsExposures, &xgcvalues );
1065
1066     /* Send orders to server, and wait until window is displayed - three
1067      * events must be received: a MapNotify event, an Expose event allowing
1068      * drawing in the window, and a ConfigureNotify to get the window
1069      * dimensions. Once those events have been received, only
1070      * ConfigureNotify events need to be received. */
1071     XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
1072     do
1073     {
1074         XWindowEvent( p_vout->p_sys->p_display, p_win->base_window,
1075                       SubstructureNotifyMask | StructureNotifyMask |
1076                       ExposureMask, &xevent);
1077         if( (xevent.type == Expose)
1078             && (xevent.xexpose.window == p_win->base_window) )
1079         {
1080             b_expose = VLC_TRUE;
1081             /* ConfigureNotify isn't sent if there isn't a window manager.
1082              * Expose should be the last event to be received so it should
1083              * be fine to assume we won't receive it anymore. */
1084             b_configure_notify = VLC_TRUE;
1085         }
1086         else if( (xevent.type == MapNotify)
1087                  && (xevent.xmap.window == p_win->base_window) )
1088         {
1089             b_map_notify = VLC_TRUE;
1090         }
1091         else if( (xevent.type == ConfigureNotify)
1092                  && (xevent.xconfigure.window == p_win->base_window) )
1093         {
1094             b_configure_notify = VLC_TRUE;
1095             p_win->i_width = xevent.xconfigure.width;
1096             p_win->i_height = xevent.xconfigure.height;
1097         }
1098     } while( !( b_expose && b_configure_notify && b_map_notify ) );
1099
1100     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
1101                   StructureNotifyMask | KeyPressMask |
1102                   ButtonPressMask | ButtonReleaseMask |
1103                   PointerMotionMask );
1104
1105 #ifdef MODULE_NAME_IS_x11
1106     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
1107     {
1108         /* Allocate a new palette */
1109         p_vout->p_sys->colormap =
1110             XCreateColormap( p_vout->p_sys->p_display,
1111                              DefaultRootWindow( p_vout->p_sys->p_display ),
1112                              DefaultVisual( p_vout->p_sys->p_display,
1113                                             p_vout->p_sys->i_screen ),
1114                              AllocAll );
1115
1116         xwindow_attributes.colormap = p_vout->p_sys->colormap;
1117         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
1118                                  CWColormap, &xwindow_attributes );
1119     }
1120 #endif
1121
1122     /* Create video output sub-window. */
1123     p_win->video_window =  XCreateSimpleWindow(
1124                                       p_vout->p_sys->p_display,
1125                                       p_win->base_window, 0, 0,
1126                                       p_win->i_width, p_win->i_height,
1127                                       0,
1128                                       BlackPixel( p_vout->p_sys->p_display,
1129                                                   p_vout->p_sys->i_screen ),
1130                                       WhitePixel( p_vout->p_sys->p_display,
1131                                                   p_vout->p_sys->i_screen ) );
1132
1133     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
1134                           BlackPixel( p_vout->p_sys->p_display,
1135                                       p_vout->p_sys->i_screen ) );
1136
1137     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
1138     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
1139                   ExposureMask );
1140
1141     /* make sure the video window will be centered in the next ManageVideo() */
1142     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1143
1144     /* If the cursor was formerly blank than blank it again */
1145     if( !p_vout->p_sys->b_mouse_pointer_visible )
1146     {
1147         ToggleCursor( p_vout );
1148         ToggleCursor( p_vout );
1149     }
1150
1151     /* Do NOT use XFlush here ! */
1152     XSync( p_vout->p_sys->p_display, False );
1153
1154     /* At this stage, the window is open, displayed, and ready to
1155      * receive data */
1156     p_vout->p_sys->p_win = p_win;
1157
1158     return VLC_SUCCESS;
1159 }
1160
1161 /*****************************************************************************
1162  * DestroyWindow: destroy the window
1163  *****************************************************************************
1164  *
1165  *****************************************************************************/
1166 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1167 {
1168     /* Do NOT use XFlush here ! */
1169     XSync( p_vout->p_sys->p_display, False );
1170
1171     if( p_win->video_window != None )
1172         XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1173
1174     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1175
1176     XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1177     XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1178
1179     if( p_win->owner_window )
1180         vout_ReleaseWindow( p_vout, (void *)p_win->owner_window );
1181 }
1182
1183 /*****************************************************************************
1184  * NewPicture: allocate a picture
1185  *****************************************************************************
1186  * Returns 0 on success, -1 otherwise
1187  *****************************************************************************/
1188 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1189 {
1190 #ifndef MODULE_NAME_IS_glx
1191
1192 #ifdef MODULE_NAME_IS_xvideo
1193     int i_plane;
1194 #endif
1195
1196     /* We know the chroma, allocate a buffer which will be used
1197      * directly by the decoder */
1198     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1199
1200     if( p_pic->p_sys == NULL )
1201     {
1202         return -1;
1203     }
1204
1205     /* Fill in picture_t fields */
1206     vout_InitPicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
1207                       p_vout->output.i_width, p_vout->output.i_height,
1208                       p_vout->output.i_aspect );
1209
1210 #ifdef HAVE_SYS_SHM_H
1211     if( p_vout->p_sys->b_shm )
1212     {
1213         /* Create image using XShm extension */
1214         p_pic->p_sys->p_image =
1215             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1216 #   ifdef MODULE_NAME_IS_xvideo
1217                             p_vout->p_sys->i_xvport,
1218                             VLC2X11_FOURCC(p_vout->output.i_chroma),
1219 #   else
1220                             p_vout->p_sys->p_visual,
1221                             p_vout->p_sys->i_screen_depth,
1222 #   endif
1223                             &p_pic->p_sys->shminfo,
1224                             p_vout->output.i_width, p_vout->output.i_height );
1225     }
1226
1227     if( !p_vout->p_sys->b_shm || !p_pic->p_sys->p_image )
1228 #endif /* HAVE_SYS_SHM_H */
1229     {
1230         /* Create image without XShm extension */
1231         p_pic->p_sys->p_image =
1232             CreateImage( p_vout, p_vout->p_sys->p_display,
1233 #ifdef MODULE_NAME_IS_xvideo
1234                          p_vout->p_sys->i_xvport,
1235                          VLC2X11_FOURCC(p_vout->output.i_chroma),
1236                          p_pic->format.i_bits_per_pixel,
1237 #else
1238                          p_vout->p_sys->p_visual,
1239                          p_vout->p_sys->i_screen_depth,
1240                          p_vout->p_sys->i_bytes_per_pixel,
1241 #endif
1242                          p_vout->output.i_width, p_vout->output.i_height );
1243
1244 #ifdef HAVE_SYS_SHM_H
1245         if( p_pic->p_sys->p_image && p_vout->p_sys->b_shm )
1246         {
1247             msg_Warn( p_vout, "couldn't create SHM image, disabling SHM." );
1248             p_vout->p_sys->b_shm = VLC_FALSE;
1249         }
1250 #endif /* HAVE_SYS_SHM_H */
1251     }
1252
1253     if( p_pic->p_sys->p_image == NULL )
1254     {
1255         free( p_pic->p_sys );
1256         return -1;
1257     }
1258
1259     switch( p_vout->output.i_chroma )
1260     {
1261 #ifdef MODULE_NAME_IS_xvideo
1262         case VLC_FOURCC('I','4','2','0'):
1263         case VLC_FOURCC('Y','V','1','2'):
1264         case VLC_FOURCC('Y','2','1','1'):
1265         case VLC_FOURCC('Y','U','Y','2'):
1266         case VLC_FOURCC('U','Y','V','Y'):
1267         case VLC_FOURCC('R','V','1','5'):
1268         case VLC_FOURCC('R','V','1','6'):
1269         case VLC_FOURCC('R','V','2','4'): /* Fixme: pixel pitch == 4 ? */
1270         case VLC_FOURCC('R','V','3','2'):
1271
1272             for( i_plane = 0; i_plane < p_pic->p_sys->p_image->num_planes;
1273                  i_plane++ )
1274             {
1275                 p_pic->p[i_plane].p_pixels = p_pic->p_sys->p_image->data
1276                     + p_pic->p_sys->p_image->offsets[i_plane];
1277                 p_pic->p[i_plane].i_pitch =
1278                     p_pic->p_sys->p_image->pitches[i_plane];
1279             }
1280             if( p_vout->output.i_chroma == VLC_FOURCC('Y','V','1','2') )
1281             {
1282                 /* U and V inverted compared to I420
1283                  * Fixme: this should be handled by the vout core */
1284                 p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1285                     + p_pic->p_sys->p_image->offsets[2];
1286                 p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1287                     + p_pic->p_sys->p_image->offsets[1];
1288             }
1289             break;
1290
1291 #else
1292         case VLC_FOURCC('R','G','B','2'):
1293         case VLC_FOURCC('R','V','1','6'):
1294         case VLC_FOURCC('R','V','1','5'):
1295         case VLC_FOURCC('R','V','2','4'):
1296         case VLC_FOURCC('R','V','3','2'):
1297
1298             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1299             p_pic->p->i_visible_lines = p_pic->p_sys->p_image->height;
1300             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1301                                   + p_pic->p_sys->p_image->xoffset;
1302             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1303
1304             /* p_pic->p->i_pixel_pitch = 4 for RV24 but this should be set
1305              * properly by vout_InitPicture() */
1306             p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
1307                                          * p_pic->p_sys->p_image->width;
1308             break;
1309 #endif
1310
1311         default:
1312             /* Unknown chroma, tell the guy to get lost */
1313             IMAGE_FREE( p_pic->p_sys->p_image );
1314             free( p_pic->p_sys );
1315             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1316                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1317             p_pic->i_planes = 0;
1318             return -1;
1319     }
1320
1321 #endif /* !MODULE_NAME_IS_glx */
1322
1323     return 0;
1324 }
1325
1326 /*****************************************************************************
1327  * FreePicture: destroy a picture allocated with NewPicture
1328  *****************************************************************************
1329  * Destroy XImage AND associated data. If using Shm, detach shared memory
1330  * segment from server and process, then free it. The XDestroyImage manpage
1331  * says that both the image structure _and_ the data pointed to by the
1332  * image structure are freed, so no need to free p_image->data.
1333  *****************************************************************************/
1334 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1335 {
1336     /* The order of operations is correct */
1337 #ifdef HAVE_SYS_SHM_H
1338     if( p_vout->p_sys->b_shm )
1339     {
1340         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1341         IMAGE_FREE( p_pic->p_sys->p_image );
1342
1343         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1344         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1345         {
1346             msg_Err( p_vout, "cannot detach shared memory (%s)",
1347                              strerror(errno) );
1348         }
1349     }
1350     else
1351 #endif
1352     {
1353         IMAGE_FREE( p_pic->p_sys->p_image );
1354     }
1355
1356     /* Do NOT use XFlush here ! */
1357     XSync( p_vout->p_sys->p_display, False );
1358
1359     free( p_pic->p_sys );
1360 }
1361
1362 /*****************************************************************************
1363  * ToggleFullScreen: Enable or disable full screen mode
1364  *****************************************************************************
1365  * This function will switch between fullscreen and window mode.
1366  *****************************************************************************/
1367 static void ToggleFullScreen ( vout_thread_t *p_vout )
1368 {
1369     Atom prop;
1370     XEvent xevent;
1371     mwmhints_t mwmhints;
1372     XSetWindowAttributes attributes;
1373
1374 #ifdef HAVE_XINERAMA
1375     int i_d1, i_d2;
1376 #endif
1377
1378     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1379
1380     if( p_vout->b_fullscreen )
1381     {
1382         msg_Dbg( p_vout, "entering fullscreen mode" );
1383
1384         p_vout->p_sys->b_altfullscreen =
1385             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1386
1387         XUnmapWindow( p_vout->p_sys->p_display,
1388                       p_vout->p_sys->p_win->base_window );
1389
1390         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1391
1392         CreateWindow( p_vout, p_vout->p_sys->p_win );
1393         XDestroyWindow( p_vout->p_sys->p_display,
1394                         p_vout->p_sys->fullscreen_window.video_window );
1395         XReparentWindow( p_vout->p_sys->p_display,
1396                          p_vout->p_sys->original_window.video_window,
1397                          p_vout->p_sys->fullscreen_window.base_window, 0, 0 );
1398         p_vout->p_sys->fullscreen_window.video_window =
1399             p_vout->p_sys->original_window.video_window;
1400
1401         /* To my knowledge there are two ways to create a borderless window.
1402          * There's the generic way which is to tell x to bypass the window
1403          * manager, but this creates problems with the focus of other
1404          * applications.
1405          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1406          * luckily seems to be supported by most window managers. */
1407         if( !p_vout->p_sys->b_altfullscreen )
1408         {
1409             mwmhints.flags = MWM_HINTS_DECORATIONS;
1410             mwmhints.decorations = False;
1411
1412             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1413                                 False );
1414             XChangeProperty( p_vout->p_sys->p_display,
1415                              p_vout->p_sys->p_win->base_window,
1416                              prop, prop, 32, PropModeReplace,
1417                              (unsigned char *)&mwmhints,
1418                              PROP_MWM_HINTS_ELEMENTS );
1419         }
1420         else
1421         {
1422             /* brute force way to remove decorations */
1423             attributes.override_redirect = True;
1424             XChangeWindowAttributes( p_vout->p_sys->p_display,
1425                                      p_vout->p_sys->p_win->base_window,
1426                                      CWOverrideRedirect,
1427                                      &attributes);
1428
1429             /* Make sure the change is effective */
1430             XReparentWindow( p_vout->p_sys->p_display,
1431                              p_vout->p_sys->p_win->base_window,
1432                              DefaultRootWindow( p_vout->p_sys->p_display ),
1433                              0, 0 );
1434         }
1435
1436         if( p_vout->p_sys->b_net_wm_state_fullscreen )
1437         {
1438             XClientMessageEvent event;
1439
1440             memset( &event, 0, sizeof( XClientMessageEvent ) );
1441
1442             event.type = ClientMessage;
1443             event.message_type = p_vout->p_sys->net_wm_state;
1444             event.display = p_vout->p_sys->p_display;
1445             event.window = p_vout->p_sys->p_win->base_window;
1446             event.format = 32;
1447             event.data.l[ 0 ] = 1; /* set property */
1448             event.data.l[ 1 ] = p_vout->p_sys->net_wm_state_fullscreen;
1449
1450             XSendEvent( p_vout->p_sys->p_display,
1451                         DefaultRootWindow( p_vout->p_sys->p_display ),
1452                         False, SubstructureRedirectMask,
1453                         (XEvent*)&event );
1454         }
1455
1456         /* Make sure the change is effective */
1457         XReparentWindow( p_vout->p_sys->p_display,
1458                          p_vout->p_sys->p_win->base_window,
1459                          DefaultRootWindow( p_vout->p_sys->p_display ),
1460                          0, 0 );
1461
1462 #ifdef HAVE_XINERAMA
1463         if( XineramaQueryExtension( p_vout->p_sys->p_display, &i_d1, &i_d2 ) &&
1464             XineramaIsActive( p_vout->p_sys->p_display ) )
1465         {
1466             XineramaScreenInfo *screens;   /* infos for xinerama */
1467             int i_num_screens;
1468
1469             msg_Dbg( p_vout, "using XFree Xinerama extension");
1470
1471 #define SCREEN p_vout->p_sys->p_win->i_screen
1472
1473             /* Get Information about Xinerama (num of screens) */
1474             screens = XineramaQueryScreens( p_vout->p_sys->p_display,
1475                                             &i_num_screens );
1476
1477             if( !SCREEN )
1478                 SCREEN = config_GetInt( p_vout,
1479                                         MODULE_STRING "-xineramascreen" );
1480
1481             /* just check that user has entered a good value */
1482             if( SCREEN >= i_num_screens || SCREEN < 0 )
1483             {
1484                 msg_Dbg( p_vout, "requested screen number invalid" );
1485                 SCREEN = 0;
1486             }
1487
1488             /* Get the X/Y upper left corner coordinate of the above screen */
1489             p_vout->p_sys->p_win->i_x = screens[SCREEN].x_org;
1490             p_vout->p_sys->p_win->i_y = screens[SCREEN].y_org;
1491
1492             /* Set the Height/width to the screen resolution */
1493             p_vout->p_sys->p_win->i_width = screens[SCREEN].width;
1494             p_vout->p_sys->p_win->i_height = screens[SCREEN].height;
1495
1496             XFree(screens);
1497
1498 #undef SCREEN
1499
1500         }
1501         else
1502 #endif
1503         {
1504             /* The window wasn't necessarily created at the requested size */
1505             p_vout->p_sys->p_win->i_x = p_vout->p_sys->p_win->i_y = 0;
1506             p_vout->p_sys->p_win->i_width =
1507                 DisplayWidth( p_vout->p_sys->p_display,
1508                               p_vout->p_sys->i_screen );
1509             p_vout->p_sys->p_win->i_height =
1510                 DisplayHeight( p_vout->p_sys->p_display,
1511                                p_vout->p_sys->i_screen );
1512         }
1513
1514         XMoveResizeWindow( p_vout->p_sys->p_display,
1515                            p_vout->p_sys->p_win->base_window,
1516                            p_vout->p_sys->p_win->i_x,
1517                            p_vout->p_sys->p_win->i_y,
1518                            p_vout->p_sys->p_win->i_width,
1519                            p_vout->p_sys->p_win->i_height );
1520     }
1521     else
1522     {
1523         msg_Dbg( p_vout, "leaving fullscreen mode" );
1524
1525         XReparentWindow( p_vout->p_sys->p_display,
1526                          p_vout->p_sys->original_window.video_window,
1527                          p_vout->p_sys->original_window.base_window, 0, 0 );
1528
1529         p_vout->p_sys->fullscreen_window.video_window = None;
1530         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1531         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1532
1533         XMapWindow( p_vout->p_sys->p_display,
1534                     p_vout->p_sys->p_win->base_window );
1535     }
1536
1537     /* Unfortunately, using XSync() here is not enough to ensure the
1538      * window has already been mapped because the XMapWindow() request
1539      * has not necessarily been sent directly to our window (remember,
1540      * the call is first redirected to the window manager) */
1541     do
1542     {
1543         XWindowEvent( p_vout->p_sys->p_display,
1544                       p_vout->p_sys->p_win->base_window,
1545                       StructureNotifyMask, &xevent );
1546     } while( xevent.type != MapNotify );
1547
1548     /* Be careful, this can generate a BadMatch error if the window is not
1549      * already mapped by the server (see above) */
1550     XSetInputFocus(p_vout->p_sys->p_display,
1551                    p_vout->p_sys->p_win->base_window,
1552                    RevertToParent,
1553                    CurrentTime);
1554
1555     /* signal that the size needs to be updated */
1556     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1557 }
1558
1559 /*****************************************************************************
1560  * EnableXScreenSaver: enable screen saver
1561  *****************************************************************************
1562  * This function enables the screen saver on a display after it has been
1563  * disabled by XDisableScreenSaver.
1564  * FIXME: what happens if multiple vlc sessions are running at the same
1565  *        time ???
1566  *****************************************************************************/
1567 static void EnableXScreenSaver( vout_thread_t *p_vout )
1568 {
1569 #ifdef DPMSINFO_IN_DPMS_H
1570     int dummy;
1571 #endif
1572
1573     if( p_vout->p_sys->i_ss_timeout )
1574     {
1575         XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1576                          p_vout->p_sys->i_ss_interval,
1577                          p_vout->p_sys->i_ss_blanking,
1578                          p_vout->p_sys->i_ss_exposure );
1579     }
1580
1581     /* Restore DPMS settings */
1582 #ifdef DPMSINFO_IN_DPMS_H
1583     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1584     {
1585         if( p_vout->p_sys->b_ss_dpms )
1586         {
1587             DPMSEnable( p_vout->p_sys->p_display );
1588         }
1589     }
1590 #endif
1591 }
1592
1593 /*****************************************************************************
1594  * DisableXScreenSaver: disable screen saver
1595  *****************************************************************************
1596  * See XEnableXScreenSaver
1597  *****************************************************************************/
1598 static void DisableXScreenSaver( vout_thread_t *p_vout )
1599 {
1600 #ifdef DPMSINFO_IN_DPMS_H
1601     int dummy;
1602 #endif
1603
1604     /* Save screen saver information */
1605     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1606                      &p_vout->p_sys->i_ss_interval,
1607                      &p_vout->p_sys->i_ss_blanking,
1608                      &p_vout->p_sys->i_ss_exposure );
1609
1610     /* Disable screen saver */
1611     if( p_vout->p_sys->i_ss_timeout )
1612     {
1613         XSetScreenSaver( p_vout->p_sys->p_display, 0,
1614                          p_vout->p_sys->i_ss_interval,
1615                          p_vout->p_sys->i_ss_blanking,
1616                          p_vout->p_sys->i_ss_exposure );
1617     }
1618
1619     /* Disable DPMS */
1620 #ifdef DPMSINFO_IN_DPMS_H
1621     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1622     {
1623         CARD16 unused;
1624         /* Save DPMS current state */
1625         DPMSInfo( p_vout->p_sys->p_display, &unused,
1626                   &p_vout->p_sys->b_ss_dpms );
1627         DPMSDisable( p_vout->p_sys->p_display );
1628    }
1629 #endif
1630 }
1631
1632 /*****************************************************************************
1633  * CreateCursor: create a blank mouse pointer
1634  *****************************************************************************/
1635 static void CreateCursor( vout_thread_t *p_vout )
1636 {
1637     XColor cursor_color;
1638
1639     p_vout->p_sys->cursor_pixmap =
1640         XCreatePixmap( p_vout->p_sys->p_display,
1641                        DefaultRootWindow( p_vout->p_sys->p_display ),
1642                        1, 1, 1 );
1643
1644     XParseColor( p_vout->p_sys->p_display,
1645                  XCreateColormap( p_vout->p_sys->p_display,
1646                                   DefaultRootWindow(
1647                                                     p_vout->p_sys->p_display ),
1648                                   DefaultVisual(
1649                                                 p_vout->p_sys->p_display,
1650                                                 p_vout->p_sys->i_screen ),
1651                                   AllocNone ),
1652                  "black", &cursor_color );
1653
1654     p_vout->p_sys->blank_cursor =
1655         XCreatePixmapCursor( p_vout->p_sys->p_display,
1656                              p_vout->p_sys->cursor_pixmap,
1657                              p_vout->p_sys->cursor_pixmap,
1658                              &cursor_color, &cursor_color, 1, 1 );
1659 }
1660
1661 /*****************************************************************************
1662  * DestroyCursor: destroy the blank mouse pointer
1663  *****************************************************************************/
1664 static void DestroyCursor( vout_thread_t *p_vout )
1665 {
1666     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1667 }
1668
1669 /*****************************************************************************
1670  * ToggleCursor: hide or show the mouse pointer
1671  *****************************************************************************
1672  * This function hides the X pointer if it is visible by setting the pointer
1673  * sprite to a blank one. To show it again, we disable the sprite.
1674  *****************************************************************************/
1675 static void ToggleCursor( vout_thread_t *p_vout )
1676 {
1677     if( p_vout->p_sys->b_mouse_pointer_visible )
1678     {
1679         XDefineCursor( p_vout->p_sys->p_display,
1680                        p_vout->p_sys->p_win->base_window,
1681                        p_vout->p_sys->blank_cursor );
1682         p_vout->p_sys->b_mouse_pointer_visible = 0;
1683     }
1684     else
1685     {
1686         XUndefineCursor( p_vout->p_sys->p_display,
1687                          p_vout->p_sys->p_win->base_window );
1688         p_vout->p_sys->b_mouse_pointer_visible = 1;
1689     }
1690 }
1691
1692 #ifdef MODULE_NAME_IS_xvideo
1693 /*****************************************************************************
1694  * XVideoGetPort: get YUV12 port
1695  *****************************************************************************/
1696 static int XVideoGetPort( vout_thread_t *p_vout,
1697                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1698 {
1699     XvAdaptorInfo *p_adaptor;
1700     unsigned int i;
1701     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1702     int i_selected_port;
1703
1704     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1705     {
1706         case Success:
1707             break;
1708
1709         case XvBadExtension:
1710             msg_Warn( p_vout, "XvBadExtension" );
1711             return -1;
1712
1713         case XvBadAlloc:
1714             msg_Warn( p_vout, "XvBadAlloc" );
1715             return -1;
1716
1717         default:
1718             msg_Warn( p_vout, "XvQueryExtension failed" );
1719             return -1;
1720     }
1721
1722     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1723                              DefaultRootWindow( p_vout->p_sys->p_display ),
1724                              &i_num_adaptors, &p_adaptor ) )
1725     {
1726         case Success:
1727             break;
1728
1729         case XvBadExtension:
1730             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1731             return -1;
1732
1733         case XvBadAlloc:
1734             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1735             return -1;
1736
1737         default:
1738             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1739             return -1;
1740     }
1741
1742     i_selected_port = -1;
1743     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1744
1745     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1746     {
1747         XvImageFormatValues *p_formats;
1748         int i_format, i_num_formats;
1749         int i_port;
1750
1751         /* If we requested an adaptor and it's not this one, we aren't
1752          * interested */
1753         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1754         {
1755             continue;
1756         }
1757
1758         /* If the adaptor doesn't have the required properties, skip it */
1759         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1760             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1761         {
1762             continue;
1763         }
1764
1765         /* Check that adaptor supports our requested format... */
1766         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1767                                         p_adaptor[i_adaptor].base_id,
1768                                         &i_num_formats );
1769
1770         for( i_format = 0;
1771              i_format < i_num_formats && ( i_selected_port == -1 );
1772              i_format++ )
1773         {
1774             XvAttribute     *p_attr;
1775             int             i_attr, i_num_attributes;
1776
1777             /* If this is not the format we want, or at least a
1778              * similar one, forget it */
1779             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1780             {
1781                 continue;
1782             }
1783
1784             /* Look for the first available port supporting this format */
1785             for( i_port = p_adaptor[i_adaptor].base_id;
1786                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1787                                    + p_adaptor[i_adaptor].num_ports) )
1788                    && ( i_selected_port == -1 );
1789                  i_port++ )
1790             {
1791                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1792                      == Success )
1793                 {
1794                     i_selected_port = i_port;
1795                     *pi_newchroma = p_formats[ i_format ].id;
1796                 }
1797             }
1798
1799             /* If no free port was found, forget it */
1800             if( i_selected_port == -1 )
1801             {
1802                 continue;
1803             }
1804
1805             /* If we found a port, print information about it */
1806             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1807                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1808                      (char *)&p_formats[ i_format ].id,
1809                      ( p_formats[ i_format ].format == XvPacked ) ?
1810                          "packed" : "planar" );
1811
1812             /* Make sure XV_AUTOPAINT_COLORKEY is set */
1813             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1814                                             i_selected_port,
1815                                             &i_num_attributes );
1816
1817             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1818             {
1819                 if( !strcmp( p_attr[i_attr].name, "XV_AUTOPAINT_COLORKEY" ) )
1820                 {
1821                     const Atom autopaint =
1822                         XInternAtom( p_vout->p_sys->p_display,
1823                                      "XV_AUTOPAINT_COLORKEY", False );
1824                     XvSetPortAttribute( p_vout->p_sys->p_display,
1825                                         i_selected_port, autopaint, 1 );
1826                     break;
1827                 }
1828             }
1829
1830             if( p_attr != NULL )
1831             {
1832                 XFree( p_attr );
1833             }
1834         }
1835
1836         if( p_formats != NULL )
1837         {
1838             XFree( p_formats );
1839         }
1840
1841     }
1842
1843     if( i_num_adaptors > 0 )
1844     {
1845         XvFreeAdaptorInfo( p_adaptor );
1846     }
1847
1848     if( i_selected_port == -1 )
1849     {
1850         int i_chroma_tmp = X112VLC_FOURCC( i_chroma );
1851         if( i_requested_adaptor == -1 )
1852         {
1853             msg_Warn( p_vout, "no free XVideo port found for format "
1854                       "0x%.8x (%4.4s)", i_chroma_tmp, (char*)&i_chroma_tmp );
1855         }
1856         else
1857         {
1858             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1859                       "XVideo port for format 0x%.8x (%4.4s)",
1860                       i_requested_adaptor, i_chroma_tmp, (char*)&i_chroma_tmp );
1861         }
1862     }
1863
1864     return i_selected_port;
1865 }
1866
1867 /*****************************************************************************
1868  * XVideoReleasePort: release YUV12 port
1869  *****************************************************************************/
1870 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1871 {
1872     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1873 }
1874 #endif
1875
1876 /*****************************************************************************
1877  * InitDisplay: open and initialize X11 device
1878  *****************************************************************************
1879  * Create a window according to video output given size, and set other
1880  * properties according to the display properties.
1881  *****************************************************************************/
1882 static int InitDisplay( vout_thread_t *p_vout )
1883 {
1884 #ifdef MODULE_NAME_IS_x11
1885     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1886     XVisualInfo *               p_xvisual;            /* visuals information */
1887     XVisualInfo                 xvisual_template;         /* visual template */
1888     int                         i_count;                       /* array size */
1889 #endif
1890
1891 #ifdef HAVE_SYS_SHM_H
1892     p_vout->p_sys->b_shm = 0;
1893
1894     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1895     {
1896 #   ifdef SYS_DARWIN
1897         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1898 #   else
1899         p_vout->p_sys->b_shm =
1900                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1901 #   endif
1902
1903         if( !p_vout->p_sys->b_shm )
1904         {
1905             msg_Warn( p_vout, "XShm video extension is unavailable" );
1906         }
1907     }
1908     else
1909     {
1910         msg_Dbg( p_vout, "disabling XShm video extension" );
1911     }
1912
1913 #else
1914     msg_Warn( p_vout, "XShm video extension is unavailable" );
1915
1916 #endif
1917
1918 #ifdef MODULE_NAME_IS_xvideo
1919     /* XXX The brightness and contrast values should be read from environment
1920      * XXX variables... */
1921 #if 0
1922     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1923     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1924 #endif
1925 #endif
1926
1927 #ifdef MODULE_NAME_IS_x11
1928     /* Initialize structure */
1929     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1930
1931     /* Get screen depth */
1932     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1933                                                    p_vout->p_sys->i_screen );
1934     switch( p_vout->p_sys->i_screen_depth )
1935     {
1936     case 8:
1937         /*
1938          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1939          */
1940         xvisual_template.screen =   p_vout->p_sys->i_screen;
1941         xvisual_template.class =    DirectColor;
1942         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1943                                     VisualScreenMask | VisualClassMask,
1944                                     &xvisual_template, &i_count );
1945         if( p_xvisual == NULL )
1946         {
1947             msg_Err( p_vout, "no PseudoColor visual available" );
1948             return VLC_EGENERIC;
1949         }
1950         p_vout->p_sys->i_bytes_per_pixel = 1;
1951         p_vout->output.pf_setpalette = SetPalette;
1952         break;
1953     case 15:
1954     case 16:
1955     case 24:
1956     default:
1957         /*
1958          * Screen depth is higher than 8bpp. TrueColor visual is used.
1959          */
1960         xvisual_template.screen =   p_vout->p_sys->i_screen;
1961         xvisual_template.class =    TrueColor;
1962         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1963                                     VisualScreenMask | VisualClassMask,
1964                                     &xvisual_template, &i_count );
1965         if( p_xvisual == NULL )
1966         {
1967             msg_Err( p_vout, "no TrueColor visual available" );
1968             return VLC_EGENERIC;
1969         }
1970
1971         p_vout->output.i_rmask = p_xvisual->red_mask;
1972         p_vout->output.i_gmask = p_xvisual->green_mask;
1973         p_vout->output.i_bmask = p_xvisual->blue_mask;
1974
1975         /* There is no difference yet between 3 and 4 Bpp. The only way
1976          * to find the actual number of bytes per pixel is to list supported
1977          * pixmap formats. */
1978         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1979         p_vout->p_sys->i_bytes_per_pixel = 0;
1980
1981         for( ; i_count-- ; p_formats++ )
1982         {
1983             /* Under XFree4.0, the list contains pixmap formats available
1984              * through all video depths ; so we have to check against current
1985              * depth. */
1986             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
1987             {
1988                 if( p_formats->bits_per_pixel / 8
1989                         > (int)p_vout->p_sys->i_bytes_per_pixel )
1990                 {
1991                     p_vout->p_sys->i_bytes_per_pixel =
1992                                                p_formats->bits_per_pixel / 8;
1993                 }
1994             }
1995         }
1996         break;
1997     }
1998     p_vout->p_sys->p_visual = p_xvisual->visual;
1999     XFree( p_xvisual );
2000 #endif
2001
2002     return VLC_SUCCESS;
2003 }
2004
2005 #ifdef HAVE_SYS_SHM_H
2006 /*****************************************************************************
2007  * CreateShmImage: create an XImage or XvImage using shared memory extension
2008  *****************************************************************************
2009  * Prepare an XImage or XvImage for display function.
2010  * The order of the operations respects the recommandations of the mit-shm
2011  * document by J.Corbet and K.Packard. Most of the parameters were copied from
2012  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
2013  *****************************************************************************/
2014 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
2015                                     Display* p_display, EXTRA_ARGS_SHM,
2016                                     int i_width, int i_height )
2017 {
2018     IMAGE_TYPE *p_image;
2019     Status result;
2020
2021     /* Create XImage / XvImage */
2022 #ifdef MODULE_NAME_IS_xvideo
2023     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
2024                                 i_width, i_height, p_shm );
2025 #else
2026     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2027                                p_shm, i_width, i_height );
2028 #endif
2029     if( p_image == NULL )
2030     {
2031         msg_Err( p_vout, "image creation failed" );
2032         return NULL;
2033     }
2034
2035     /* Allocate shared memory segment - 0776 set the access permission
2036      * rights (like umask), they are not yet supported by all X servers */
2037     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
2038     if( p_shm->shmid < 0 )
2039     {
2040         msg_Err( p_vout, "cannot allocate shared image data (%s)",
2041                          strerror( errno ) );
2042         IMAGE_FREE( p_image );
2043         return NULL;
2044     }
2045
2046     /* Attach shared memory segment to process (read/write) */
2047     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
2048     if(! p_shm->shmaddr )
2049     {
2050         msg_Err( p_vout, "cannot attach shared memory (%s)",
2051                          strerror(errno));
2052         IMAGE_FREE( p_image );
2053         shmctl( p_shm->shmid, IPC_RMID, 0 );
2054         return NULL;
2055     }
2056
2057     /* Read-only data. We won't be using XShmGetImage */
2058     p_shm->readOnly = True;
2059
2060     /* Attach shared memory segment to X server */
2061     XSynchronize( p_display, True );
2062     b_shm = VLC_TRUE;
2063     result = XShmAttach( p_display, p_shm );
2064     if( result == False || !b_shm )
2065     {
2066         msg_Err( p_vout, "cannot attach shared memory to X server" );
2067         IMAGE_FREE( p_image );
2068         shmctl( p_shm->shmid, IPC_RMID, 0 );
2069         shmdt( p_shm->shmaddr );
2070         return NULL;
2071     }
2072     XSynchronize( p_display, False );
2073
2074     /* Send image to X server. This instruction is required, since having
2075      * built a Shm XImage and not using it causes an error on XCloseDisplay,
2076      * and remember NOT to use XFlush ! */
2077     XSync( p_display, False );
2078
2079 #if 0
2080     /* Mark the shm segment to be removed when there are no more
2081      * attachements, so it is automatic on process exit or after shmdt */
2082     shmctl( p_shm->shmid, IPC_RMID, 0 );
2083 #endif
2084
2085     return p_image;
2086 }
2087 #endif
2088
2089 /*****************************************************************************
2090  * CreateImage: create an XImage or XvImage
2091  *****************************************************************************
2092  * Create a simple image used as a buffer.
2093  *****************************************************************************/
2094 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
2095                                  Display *p_display, EXTRA_ARGS,
2096                                  int i_width, int i_height )
2097 {
2098     byte_t *    p_data;                           /* image data storage zone */
2099     IMAGE_TYPE *p_image;
2100 #ifdef MODULE_NAME_IS_x11
2101     int         i_quantum;                     /* XImage quantum (see below) */
2102     int         i_bytes_per_line;
2103 #endif
2104
2105     /* Allocate memory for image */
2106 #ifdef MODULE_NAME_IS_xvideo
2107     p_data = (byte_t *) malloc( i_width * i_height * i_bits_per_pixel / 8 );
2108 #elif defined(MODULE_NAME_IS_x11)
2109     i_bytes_per_line = i_width * i_bytes_per_pixel;
2110     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
2111 #endif
2112     if( !p_data )
2113     {
2114         msg_Err( p_vout, "out of memory" );
2115         return NULL;
2116     }
2117
2118 #ifdef MODULE_NAME_IS_x11
2119     /* Optimize the quantum of a scanline regarding its size - the quantum is
2120        a diviser of the number of bits between the start of two scanlines. */
2121     if( i_bytes_per_line & 0xf )
2122     {
2123         i_quantum = 0x8;
2124     }
2125     else if( i_bytes_per_line & 0x10 )
2126     {
2127         i_quantum = 0x10;
2128     }
2129     else
2130     {
2131         i_quantum = 0x20;
2132     }
2133 #endif
2134
2135     /* Create XImage. p_data will be automatically freed */
2136 #ifdef MODULE_NAME_IS_xvideo
2137     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2138                              p_data, i_width, i_height );
2139 #elif defined(MODULE_NAME_IS_x11)
2140     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2141                             p_data, i_width, i_height, i_quantum, 0 );
2142 #endif
2143     if( p_image == NULL )
2144     {
2145         msg_Err( p_vout, "XCreateImage() failed" );
2146         free( p_data );
2147         return NULL;
2148     }
2149
2150     return p_image;
2151 }
2152
2153 /*****************************************************************************
2154  * X11ErrorHandler: replace error handler so we can intercept some of them
2155  *****************************************************************************/
2156 static int X11ErrorHandler( Display * display, XErrorEvent * event )
2157 {
2158     /* Ingnore errors on XSetInputFocus()
2159      * (they happen when a window is not yet mapped) */
2160     if( event->request_code == X_SetInputFocus )
2161     {
2162         fprintf(stderr, "XSetInputFocus failed\n");
2163         return 0;
2164     }
2165
2166     if( event->request_code == 150 /* MIT-SHM */ &&
2167         event->minor_code == X_ShmAttach )
2168     {
2169         fprintf(stderr, "XShmAttach failed\n");
2170         b_shm = VLC_FALSE;
2171         return 0;
2172     }
2173
2174     XSetErrorHandler(NULL);
2175     return (XSetErrorHandler(X11ErrorHandler))( display, event );
2176 }
2177
2178 #ifdef MODULE_NAME_IS_x11
2179 /*****************************************************************************
2180  * SetPalette: sets an 8 bpp palette
2181  *****************************************************************************
2182  * This function sets the palette given as an argument. It does not return
2183  * anything, but could later send information on which colors it was unable
2184  * to set.
2185  *****************************************************************************/
2186 static void SetPalette( vout_thread_t *p_vout,
2187                         uint16_t *red, uint16_t *green, uint16_t *blue )
2188 {
2189     int i;
2190     XColor p_colors[255];
2191
2192     /* allocate palette */
2193     for( i = 0; i < 255; i++ )
2194     {
2195         /* kludge: colors are indexed reversely because color 255 seems
2196          * to be reserved for black even if we try to set it to white */
2197         p_colors[ i ].pixel = 255 - i;
2198         p_colors[ i ].pad   = 0;
2199         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2200         p_colors[ i ].red   = red[ 255 - i ];
2201         p_colors[ i ].blue  = blue[ 255 - i ];
2202         p_colors[ i ].green = green[ 255 - i ];
2203     }
2204
2205     XStoreColors( p_vout->p_sys->p_display,
2206                   p_vout->p_sys->colormap, p_colors, 255 );
2207 }
2208 #endif
2209
2210 /*****************************************************************************
2211  * Control: control facility for the vout
2212  *****************************************************************************/
2213 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
2214 {
2215     double f_arg;
2216     vlc_bool_t b_arg;
2217
2218     switch( i_query )
2219     {
2220         case VOUT_SET_ZOOM:
2221             if( p_vout->p_sys->p_win->owner_window )
2222                 return vout_ControlWindow( p_vout,
2223                     (void *)p_vout->p_sys->p_win->owner_window, i_query, args);
2224
2225             f_arg = va_arg( args, double );
2226
2227             vlc_mutex_lock( &p_vout->p_sys->lock );
2228
2229             /* Update dimensions */
2230             /* FIXME: export InitWindowSize() from vout core */
2231             XResizeWindow( p_vout->p_sys->p_display,
2232                            p_vout->p_sys->p_win->base_window,
2233                            p_vout->i_window_width * f_arg,
2234                            p_vout->i_window_height * f_arg );
2235
2236             vlc_mutex_unlock( &p_vout->p_sys->lock );
2237             return VLC_SUCCESS;
2238
2239        case VOUT_CLOSE:
2240             vlc_mutex_lock( &p_vout->p_sys->lock );
2241             XUnmapWindow( p_vout->p_sys->p_display,
2242                           p_vout->p_sys->original_window.base_window );
2243             vlc_mutex_unlock( &p_vout->p_sys->lock );
2244             /* Fall through */
2245
2246        case VOUT_REPARENT:
2247             vlc_mutex_lock( &p_vout->p_sys->lock );
2248             XReparentWindow( p_vout->p_sys->p_display,
2249                              p_vout->p_sys->original_window.base_window,
2250                              DefaultRootWindow( p_vout->p_sys->p_display ),
2251                              0, 0 );
2252             XSync( p_vout->p_sys->p_display, False );
2253             p_vout->p_sys->original_window.owner_window = 0;
2254             vlc_mutex_unlock( &p_vout->p_sys->lock );
2255             return vout_vaControlDefault( p_vout, i_query, args );
2256
2257         case VOUT_SET_STAY_ON_TOP:
2258             if( p_vout->p_sys->p_win->owner_window )
2259                 return vout_ControlWindow( p_vout,
2260                     (void *)p_vout->p_sys->p_win->owner_window, i_query, args);
2261
2262             b_arg = va_arg( args, vlc_bool_t );
2263             vlc_mutex_lock( &p_vout->p_sys->lock );
2264             WindowOnTop( p_vout, b_arg );
2265             vlc_mutex_unlock( &p_vout->p_sys->lock );
2266             return VLC_SUCCESS;
2267
2268        default:
2269             return vout_vaControlDefault( p_vout, i_query, args );
2270     }
2271 }
2272
2273 /*****************************************************************************
2274  * TestNetWMSupport: tests for Extended Window Manager Hints support
2275  *****************************************************************************/
2276 static void TestNetWMSupport( vout_thread_t *p_vout )
2277 {
2278     int i_ret, i_format;
2279     unsigned long i, i_items, i_bytesafter;
2280     Atom net_wm_supported;
2281     union { Atom *p_atom; unsigned char *p_char; } p_args;
2282
2283     p_args.p_atom = NULL;
2284
2285     p_vout->p_sys->b_net_wm_state_fullscreen = VLC_FALSE;
2286     p_vout->p_sys->b_net_wm_state_above = VLC_FALSE;
2287     p_vout->p_sys->b_net_wm_state_below = VLC_FALSE;
2288     p_vout->p_sys->b_net_wm_state_stays_on_top = VLC_FALSE;
2289
2290     net_wm_supported =
2291         XInternAtom( p_vout->p_sys->p_display, "_NET_SUPPORTED", False );
2292
2293     i_ret = XGetWindowProperty( p_vout->p_sys->p_display,
2294                                 DefaultRootWindow( p_vout->p_sys->p_display ),
2295                                 net_wm_supported,
2296                                 0, 16384, False, AnyPropertyType,
2297                                 &net_wm_supported,
2298                                 &i_format, &i_items, &i_bytesafter,
2299                                 (unsigned char **)&p_args );
2300
2301     if( i_ret != Success || i_items == 0 ) return;
2302
2303     msg_Dbg( p_vout, "Window manager supports NetWM" );
2304
2305     p_vout->p_sys->net_wm_state =
2306         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE", False );
2307     p_vout->p_sys->net_wm_state_fullscreen =
2308         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_FULLSCREEN",
2309                      False );
2310     p_vout->p_sys->net_wm_state_above =
2311         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_ABOVE", False );
2312     p_vout->p_sys->net_wm_state_below =
2313         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_BELOW", False );
2314     p_vout->p_sys->net_wm_state_stays_on_top =
2315         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_STAYS_ON_TOP",
2316                      False );
2317
2318     for( i = 0; i < i_items; i++ )
2319     {
2320         if( p_args.p_atom[i] == p_vout->p_sys->net_wm_state_fullscreen )
2321         {
2322             msg_Dbg( p_vout,
2323                      "Window manager supports _NET_WM_STATE_FULLSCREEN" );
2324             p_vout->p_sys->b_net_wm_state_fullscreen = VLC_TRUE;
2325         }
2326         else if( p_args.p_atom[i] == p_vout->p_sys->net_wm_state_above )
2327         {
2328             msg_Dbg( p_vout, "Window manager supports _NET_WM_STATE_ABOVE" );
2329             p_vout->p_sys->b_net_wm_state_above = VLC_TRUE;
2330         }
2331         else if( p_args.p_atom[i] == p_vout->p_sys->net_wm_state_below )
2332         {
2333             msg_Dbg( p_vout, "Window manager supports _NET_WM_STATE_BELOW" );
2334             p_vout->p_sys->b_net_wm_state_below = VLC_TRUE;
2335         }
2336         else if( p_args.p_atom[i] == p_vout->p_sys->net_wm_state_stays_on_top )
2337         {
2338             msg_Dbg( p_vout,
2339                      "Window manager supports _NET_WM_STATE_STAYS_ON_TOP" );
2340             p_vout->p_sys->b_net_wm_state_stays_on_top = VLC_TRUE;
2341         }
2342     }
2343
2344     XFree( p_args.p_atom );
2345 }
2346
2347 /*****************************************************************************
2348  * Key events handling
2349  *****************************************************************************/
2350 static struct
2351 {
2352     int i_x11key;
2353     int i_vlckey;
2354
2355 } x11keys_to_vlckeys[] =
2356 {
2357     { XK_F1, KEY_F1 }, { XK_F2, KEY_F2 }, { XK_F3, KEY_F3 }, { XK_F4, KEY_F4 },
2358     { XK_F5, KEY_F5 }, { XK_F6, KEY_F6 }, { XK_F7, KEY_F7 }, { XK_F8, KEY_F8 },
2359     { XK_F9, KEY_F9 }, { XK_F10, KEY_F10 }, { XK_F11, KEY_F11 },
2360     { XK_F12, KEY_F12 },
2361
2362     { XK_Return, KEY_ENTER },
2363     { XK_KP_Enter, KEY_ENTER },
2364     { XK_space, KEY_SPACE },
2365     { XK_Escape, KEY_ESC },
2366
2367     { XK_Menu, KEY_MENU },
2368     { XK_Left, KEY_LEFT },
2369     { XK_Right, KEY_RIGHT },
2370     { XK_Up, KEY_UP },
2371     { XK_Down, KEY_DOWN },
2372
2373     { XK_Home, KEY_HOME },
2374     { XK_End, KEY_END },
2375     { XK_Page_Up, KEY_PAGEUP },
2376     { XK_Page_Down, KEY_PAGEDOWN },
2377
2378     { XK_Insert, KEY_INSERT },
2379     { XK_Delete, KEY_DELETE },
2380
2381     { 0, 0 }
2382 };
2383
2384 static int ConvertKey( int i_key )
2385 {
2386     int i;
2387
2388     for( i = 0; x11keys_to_vlckeys[i].i_x11key != 0; i++ )
2389     {
2390         if( x11keys_to_vlckeys[i].i_x11key == i_key )
2391         {
2392             return x11keys_to_vlckeys[i].i_vlckey;
2393         }
2394     }
2395
2396     return 0;
2397 }
2398
2399 /*****************************************************************************
2400  * WindowOnTop: Switches the "always on top" state of the video window.
2401  *****************************************************************************/
2402 static int WindowOnTop( vout_thread_t *p_vout, vlc_bool_t b_on_top )
2403 {
2404     if( p_vout->p_sys->b_net_wm_state_stays_on_top )
2405     {
2406         XClientMessageEvent event;
2407
2408         memset( &event, 0, sizeof( XClientMessageEvent ) );
2409
2410         event.type = ClientMessage;
2411         event.message_type = p_vout->p_sys->net_wm_state;
2412         event.display = p_vout->p_sys->p_display;
2413         event.window = p_vout->p_sys->p_win->base_window;
2414         event.format = 32;
2415         event.data.l[ 0 ] = b_on_top; /* set property */
2416         event.data.l[ 1 ] = p_vout->p_sys->net_wm_state_stays_on_top;
2417
2418         XSendEvent( p_vout->p_sys->p_display,
2419                     DefaultRootWindow( p_vout->p_sys->p_display ),
2420                     False, SubstructureRedirectMask,
2421                     (XEvent*)&event );
2422     }
2423
2424     return VLC_SUCCESS;
2425 }