git.sesse.net Git - vlc/blob - plugins/mga/xmga.c

   1 /*****************************************************************************
   2  * xmga.c : X11 MGA plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id: xmga.c,v 1.17 2002/06/04 00:11:12 sam Exp $
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          Gildas Bazin <gbazin@netcourrier.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <string.h>                                            /* strerror() */
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc/intf.h>
  35 #include <vlc/vout.h>
  36
  37 #ifdef HAVE_MACHINE_PARAM_H
  38 /* BSD */
  39 #include <machine/param.h>
  40 #include <sys/types.h>                                     /* typedef ushort */
  41 #include <sys/ipc.h>
  42 #endif
  43
  44 #ifndef WIN32
  45 #include <netinet/in.h>                               /* BSD: struct in_addr */
  46 #endif
  47
  48 #include <sys/shm.h>                                   /* shmget(), shmctl() */
  49 #include <X11/Xlib.h>
  50 #include <X11/Xutil.h>
  51 #include <X11/keysym.h>
  52 #include <X11/extensions/XShm.h>
  53 #include <X11/extensions/dpms.h>
  54
  55 #include "netutils.h"                                 /* network_ChannelJoin */
  56
  57 //#include "mga.h"
  58
  59 /*****************************************************************************
  60  * Local prototypes
  61  *****************************************************************************/
  62 static void vout_getfunctions( function_list_t * );
  63
  64 static int  vout_Create    ( vout_thread_t * );
  65 static void vout_Destroy   ( vout_thread_t * );
  66 static void vout_Render    ( vout_thread_t *, picture_t * );
  67 static void vout_Display   ( vout_thread_t *, picture_t * );
  68 static int  vout_Manage    ( vout_thread_t * );
  69 static int  vout_Init      ( vout_thread_t * );
  70 static void vout_End       ( vout_thread_t * );
  71
  72 static int  CreateWindow   ( vout_thread_t * );
  73 static void DestroyWindow  ( vout_thread_t * );
  74
  75 static int  NewPicture     ( vout_thread_t *, picture_t * );
  76 static void FreePicture    ( vout_thread_t *, picture_t * );
  77
  78 static void ToggleFullScreen      ( vout_thread_t * );
  79
  80 static void EnableXScreenSaver    ( vout_thread_t * );
  81 static void DisableXScreenSaver   ( vout_thread_t * );
  82
  83 static void CreateCursor   ( vout_thread_t * );
  84 static void DestroyCursor  ( vout_thread_t * );
  85 static void ToggleCursor   ( vout_thread_t * );
  86
  87 /*****************************************************************************
  88  * Building configuration tree
  89  *****************************************************************************/
  90
  91 #define ALT_FS_TEXT N_("alternate fullscreen method")
  92 #define ALT_FS_LONGTEXT N_( \
  93     "There are two ways to make a fullscreen window, unfortunately each one " \
  94     "has its drawbacks.\n" \
  95     "1) Let the window manager handle your fullscreen window (default). But " \
  96     "things like taskbars will likely show on top of the video.\n" \
  97     "2) Completly bypass the window manager, but then nothing will be able " \
  98     "to show on top of the video.")
  99
 100 #define DISPLAY_TEXT N_("X11 display name")
 101 #define DISPLAY_LONGTEXT N_( \
 102     "Specify the X11 hardware display you want to use. By default vlc will " \
 103     "use the value of the DISPLAY environment variable.")
 104
 105 MODULE_CONFIG_START
 106 ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
 107 ADD_STRING  ( "xmga-display", NULL, NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT )
 108 ADD_BOOL    ( "xmga-altfullscreen", 0, NULL, ALT_FS_TEXT, ALT_FS_LONGTEXT )
 109 MODULE_CONFIG_STOP
 110
 111 MODULE_INIT_START
 112     SET_DESCRIPTION( _("X11 MGA module") )
 113     ADD_CAPABILITY( VOUT, 60 )
 114 MODULE_INIT_STOP
 115
 116 MODULE_ACTIVATE_START
 117     vout_getfunctions( &p_module->p_functions->vout );
 118 MODULE_ACTIVATE_STOP
 119
 120 MODULE_DEACTIVATE_START
 121 MODULE_DEACTIVATE_STOP
 122
 123 /*****************************************************************************
 124  * vout_sys_t: video output method descriptor
 125  *****************************************************************************
 126  * This structure is part of the video output thread descriptor.
 127  * It describes the X11 and XVideo specific properties of an output thread.
 128  *****************************************************************************/
 129 struct vout_sys_s
 130 {
 131     /* Internal settings and properties */
 132     Display *           p_display;                        /* display pointer */
 133
 134     Visual *            p_visual;                          /* visual pointer */
 135     int                 i_screen;                           /* screen number */
 136     Window              window;                               /* root window */
 137     GC                  gc;              /* graphic context instance handler */
 138
 139     vlc_bool_t          b_shm;               /* shared memory extension flag */
 140
 141 #ifdef MODULE_NAME_IS_xvideo
 142     Window              yuv_window;   /* sub-window for displaying yuv video
 143                                                                         data */
 144     int                 i_xvport;
 145 #else
 146     Colormap            colormap;               /* colormap used (8bpp only) */
 147
 148     int                 i_screen_depth;
 149     int                 i_bytes_per_pixel;
 150     int                 i_bytes_per_line;
 151     int                 i_red_mask;
 152     int                 i_green_mask;
 153     int                 i_blue_mask;
 154 #endif
 155
 156     /* X11 generic properties */
 157     Atom                wm_protocols;
 158     Atom                wm_delete_window;
 159
 160     int                 i_width;                     /* width of main window */
 161     int                 i_height;                   /* height of main window */
 162     vlc_bool_t          b_altfullscreen;          /* which fullscreen method */
 163
 164     /* Backup of window position and size before fullscreen switch */
 165     int                 i_width_backup;
 166     int                 i_height_backup;
 167     int                 i_xpos_backup;
 168     int                 i_ypos_backup;
 169     int                 i_width_backup_2;
 170     int                 i_height_backup_2;
 171     int                 i_xpos_backup_2;
 172     int                 i_ypos_backup_2;
 173
 174     /* Screen saver properties */
 175     int                 i_ss_timeout;                             /* timeout */
 176     int                 i_ss_interval;           /* interval between changes */
 177     int                 i_ss_blanking;                      /* blanking mode */
 178     int                 i_ss_exposure;                      /* exposure mode */
 179     BOOL                b_ss_dpms;                              /* DPMS mode */
 180
 181     /* Mouse pointer properties */
 182     vlc_bool_t          b_mouse_pointer_visible;
 183     mtime_t             i_time_mouse_last_moved; /* used to auto-hide pointer*/
 184     Cursor              blank_cursor;                   /* the hidden cursor */
 185     mtime_t             i_time_button_last_pressed;   /* to track dbl-clicks */
 186     Pixmap              cursor_pixmap;
 187 };
 188
 189 /*****************************************************************************
 190  * mwmhints_t: window manager hints
 191  *****************************************************************************
 192  * Fullscreen needs to be able to hide the wm decorations so we provide
 193  * this structure to make it easier.
 194  *****************************************************************************/
 195 #define MWM_HINTS_DECORATIONS   (1L << 1)
 196 #define PROP_MWM_HINTS_ELEMENTS 5
 197 typedef struct mwmhints_s
 198 {
 199     u32 flags;
 200     u32 functions;
 201     u32 decorations;
 202     s32 input_mode;
 203     u32 status;
 204 } mwmhints_t;
 205
 206 /*****************************************************************************
 207  * Chroma defines
 208  *****************************************************************************/
 209 #ifdef MODULE_NAME_IS_xvideo
 210 #   define MAX_DIRECTBUFFERS 5
 211 #else
 212 #   define MAX_DIRECTBUFFERS 2
 213 #endif
 214
 215 /*****************************************************************************
 216  * Functions exported as capabilities. They are declared as static so that
 217  * we don't pollute the namespace too much.
 218  *****************************************************************************/
 219 static void vout_getfunctions( function_list_t * p_function_list )
 220 {
 221     p_function_list->functions.vout.pf_create     = vout_Create;
 222     p_function_list->functions.vout.pf_init       = vout_Init;
 223     p_function_list->functions.vout.pf_end        = vout_End;
 224     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 225     p_function_list->functions.vout.pf_manage     = vout_Manage;
 226     p_function_list->functions.vout.pf_render     = vout_Render;
 227     p_function_list->functions.vout.pf_display    = vout_Display;
 228 }
 229
 230 /*****************************************************************************
 231  * vout_Create: allocate X11 video thread output method
 232  *****************************************************************************
 233  * This function allocate and initialize a X11 vout method. It uses some of the
 234  * vout properties to choose the window size, and change them according to the
 235  * actual properties of the display.
 236  *****************************************************************************/
 237 static int vout_Create( vout_thread_t *p_vout )
 238 {
 239     char *psz_display;
 240
 241     /* Allocate structure */
 242     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 243     if( p_vout->p_sys == NULL )
 244     {
 245         msg_Err( p_vout, "out of memory" );
 246         return( 1 );
 247     }
 248
 249     /* Open display, unsing the "display" config variable or the DISPLAY
 250      * environment variable */
 251     psz_display = config_GetPsz( p_vout, "xmga-display" );
 252     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 253
 254     if( p_vout->p_sys->p_display == NULL )                          /* error */
 255     {
 256         msg_Err( p_vout, "cannot open display %s",
 257                          XDisplayName( psz_display ) );
 258         free( p_vout->p_sys );
 259         if( psz_display ) free( psz_display );
 260         return( 1 );
 261     }
 262     if( psz_display ) free( psz_display );
 263
 264     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 265
 266     /* Create blank cursor (for mouse cursor autohiding) */
 267     p_vout->p_sys->b_mouse_pointer_visible = 1;
 268     CreateCursor( p_vout );
 269
 270     /* Spawn base window - this window will include the video output window,
 271      * but also command buttons, subtitles and other indicators */
 272     if( CreateWindow( p_vout ) )
 273     {
 274         msg_Err( p_vout, "cannot create X11 window" );
 275         DestroyCursor( p_vout );
 276         XCloseDisplay( p_vout->p_sys->p_display );
 277         free( p_vout->p_sys );
 278         return( 1 );
 279     }
 280
 281     /* Disable screen saver */
 282     DisableXScreenSaver( p_vout );
 283
 284     /* Misc init */
 285     p_vout->p_sys->b_altfullscreen = 0;
 286
 287     return( 0 );
 288 }
 289
 290 /*****************************************************************************
 291  * vout_Destroy: destroy X11 video thread output method
 292  *****************************************************************************
 293  * Terminate an output method created by vout_CreateOutputMethod
 294  *****************************************************************************/
 295 static void vout_Destroy( vout_thread_t *p_vout )
 296 {
 297     /* Restore cursor if it was blanked */
 298     if( !p_vout->p_sys->b_mouse_pointer_visible )
 299     {
 300         ToggleCursor( p_vout );
 301     }
 302
 303     DestroyCursor( p_vout );
 304     EnableXScreenSaver( p_vout );
 305     DestroyWindow( p_vout );
 306
 307     XCloseDisplay( p_vout->p_sys->p_display );
 308
 309     /* Destroy structure */
 310     free( p_vout->p_sys );
 311 }
 312
 313 /*****************************************************************************
 314  * vout_Init: initialize X11 video thread output method
 315  *****************************************************************************
 316  * This function create the XImages needed by the output thread. It is called
 317  * at the beginning of the thread, but also each time the window is resized.
 318  *****************************************************************************/
 319 static int vout_Init( vout_thread_t *p_vout )
 320 {
 321     int i_index;
 322     picture_t *p_pic;
 323
 324     I_OUTPUTPICTURES = 0;
 325
 326 #ifdef MODULE_NAME_IS_xvideo
 327     /* Initialize the output structure; we already found an XVideo port,
 328      * and the corresponding chroma we will be using. Since we can
 329      * arbitrary scale, stick to the coordinates and aspect. */
 330     p_vout->output.i_width  = p_vout->render.i_width;
 331     p_vout->output.i_height = p_vout->render.i_height;
 332     p_vout->output.i_aspect = p_vout->render.i_aspect;
 333
 334 #else
 335     /* Initialize the output structure: RGB with square pixels, whatever
 336      * the input format is, since it's the only format we know */
 337     switch( p_vout->p_sys->i_screen_depth )
 338     {
 339         case 8: /* FIXME: set the palette */
 340             p_vout->output.i_chroma = FOURCC_RGB2; break;
 341         case 15:
 342             p_vout->output.i_chroma = FOURCC_RV15; break;
 343         case 16:
 344             p_vout->output.i_chroma = FOURCC_RV16; break;
 345         case 24:
 346             p_vout->output.i_chroma = FOURCC_RV24; break;
 347         case 32:
 348             p_vout->output.i_chroma = FOURCC_RV32; break;
 349         default:
 350             msg_Err( p_vout, "unknown screen depth %i",
 351                              p_vout->p_sys->i_screen_depth );
 352             return( 0 );
 353     }
 354
 355     p_vout->output.i_width = p_vout->p_sys->i_width;
 356     p_vout->output.i_height = p_vout->p_sys->i_height;
 357
 358     /* Assume we have square pixels */
 359     p_vout->output.i_aspect = p_vout->p_sys->i_width
 360                                * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
 361 #endif
 362
 363     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 364     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 365     {
 366         p_pic = NULL;
 367
 368         /* Find an empty picture slot */
 369         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 370         {
 371             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 372             {
 373                 p_pic = p_vout->p_picture + i_index;
 374                 break;
 375             }
 376         }
 377
 378         /* Allocate the picture */
 379         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 380         {
 381             break;
 382         }
 383
 384         p_pic->i_status = DESTROYED_PICTURE;
 385         p_pic->i_type   = DIRECT_PICTURE;
 386
 387         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 388
 389         I_OUTPUTPICTURES++;
 390     }
 391
 392     return( 0 );
 393 }
 394
 395 /*****************************************************************************
 396  * vout_Render: render previously calculated output
 397  *****************************************************************************/
 398 static void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
 399 {
 400     ;
 401 }
 402
 403  /*****************************************************************************
 404  * vout_Display: displays previously rendered output
 405  *****************************************************************************
 406  * This function sends the currently rendered image to X11 server.
 407  * (The Xv extension takes care of "double-buffering".)
 408  *****************************************************************************/
 409 static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
 410 {
 411     int i_width, i_height, i_x, i_y;
 412
 413     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 414                        &i_x, &i_y, &i_width, &i_height );
 415 }
 416
 417 /*****************************************************************************
 418  * vout_Manage: handle X11 events
 419  *****************************************************************************
 420  * This function should be called regularly by video output thread. It manages
 421  * X11 events and allows window resizing. It returns a non null value on
 422  * error.
 423  *****************************************************************************/
 424 static int vout_Manage( vout_thread_t *p_vout )
 425 {
 426     XEvent      xevent;                                         /* X11 event */
 427     vlc_bool_t  b_resized;                        /* window has been resized */
 428     char        i_key;                                    /* ISO Latin-1 key */
 429     KeySym      x_key_symbol;
 430
 431     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 432      * output window's size changed, MapNotify and UnmapNotify to know if the
 433      * window is mapped (and if the display is useful), and ClientMessages
 434      * to intercept window destruction requests */
 435
 436     b_resized = 0;
 437     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 438                               StructureNotifyMask | KeyPressMask |
 439                               ButtonPressMask | ButtonReleaseMask |
 440                               PointerMotionMask | Button1MotionMask , &xevent )
 441            == True )
 442     {
 443         /* ConfigureNotify event: prepare  */
 444         if( (xevent.type == ConfigureNotify)
 445           && ((xevent.xconfigure.width != p_vout->p_sys->i_width)
 446              || (xevent.xconfigure.height != p_vout->p_sys->i_height)) )
 447         {
 448             /* Update dimensions */
 449             b_resized = 1;
 450             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 451             p_vout->p_sys->i_width = xevent.xconfigure.width;
 452             p_vout->p_sys->i_height = xevent.xconfigure.height;
 453         }
 454         /* Keyboard event */
 455         else if( xevent.type == KeyPress )
 456         {
 457             /* We may have keys like F1 trough F12, ESC ... */
 458             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 459                                              xevent.xkey.keycode, 0 );
 460             switch( x_key_symbol )
 461             {
 462             case XK_Escape:
 463                 p_vout->p_vlc->b_die = 1;
 464                 break;
 465             case XK_Menu:
 466                 p_vout->p_vlc->p_intf->b_menu_change = 1;
 467                 break;
 468             case XK_Left:
 469                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 470                 break;
 471             case XK_Right:
 472                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 473                 break;
 474             case XK_Up:
 475                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 476                 break;
 477             case XK_Down:
 478                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 479                 break;
 480             case XK_Home:
 481                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
 482                 break;
 483             case XK_End:
 484                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
 485                 break;
 486             case XK_Page_Up:
 487                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 488                 break;
 489             case XK_Page_Down:
 490                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 491                 break;
 492             case XK_space:
 493                 input_SetStatus( p_input_bank->pp_input[0],
 494                                  INPUT_STATUS_PAUSE );
 495                 break;
 496
 497             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
 498             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
 499             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
 500             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
 501             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
 502             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
 503             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
 504             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
 505             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
 506             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
 507             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
 508             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
 509
 510             default:
 511                 /* "Normal Keys"
 512                  * The reason why I use this instead of XK_0 is that
 513                  * with XLookupString, we don't have to care about
 514                  * keymaps. */
 515
 516                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 517                 {
 518                 /* FIXME: handle stuff here */
 519                     switch( i_key )
 520                     {
 521                     case 'q':
 522                     case 'Q':
 523                         p_vout->p_vlc->b_die = 1;
 524                         break;
 525                     case 'f':
 526                     case 'F':
 527                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 528                         break;
 529
 530                     default:
 531                         break;
 532                     }
 533                 }
 534                 break;
 535             }
 536         }
 537         /* Mouse click */
 538         else if( xevent.type == ButtonPress )
 539         {
 540             switch( ((XButtonEvent *)&xevent)->button )
 541             {
 542                 case Button1:
 543                     /* In this part we will eventually manage
 544                      * clicks for DVD navigation for instance. */
 545
 546                     /* detect double-clicks */
 547                     if( ( ((XButtonEvent *)&xevent)->time -
 548                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 549                     {
 550                       p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 551                     }
 552
 553                     p_vout->p_sys->i_time_button_last_pressed =
 554                         ((XButtonEvent *)&xevent)->time;
 555                     break;
 556
 557                 case Button4:
 558                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 559                     break;
 560
 561                 case Button5:
 562                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 563                     break;
 564             }
 565         }
 566         /* Mouse release */
 567         else if( xevent.type == ButtonRelease )
 568         {
 569             switch( ((XButtonEvent *)&xevent)->button )
 570             {
 571                 case Button3:
 572                     /* FIXME: need locking ! */
 573                     p_vout->p_vlc->p_intf->b_menu_change = 1;
 574                     break;
 575             }
 576         }
 577         /* Mouse move */
 578         else if( xevent.type == MotionNotify )
 579         {
 580             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 581             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 582             {
 583                 ToggleCursor( p_vout );
 584             }
 585         }
 586         /* Other event */
 587         else
 588         {
 589             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 590         }
 591     }
 592
 593     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 594      * are handled - according to the man pages, the format is always 32
 595      * in this case */
 596     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 597                              ClientMessage, &xevent ) )
 598     {
 599         if( (xevent.xclient.message_type == p_vout->p_sys->wm_protocols)
 600             && (xevent.xclient.data.l[0] == p_vout->p_sys->wm_delete_window ) )
 601         {
 602             p_vout->p_vlc->b_die = 1;
 603         }
 604     }
 605
 606     /*
 607      * Fullscreen Change
 608      */
 609     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 610     {
 611         ToggleFullScreen( p_vout );
 612         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 613
 614     }
 615
 616     /*
 617      * Size change
 618      */
 619     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 620     {
 621         int i_width, i_height, i_x, i_y;
 622
 623         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 624
 625         msg_Dbg( p_vout, "video display resized (%dx%d)",
 626                  p_vout->p_sys->i_width, p_vout->p_sys->i_height );
 627
 628         vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
 629                            p_vout->p_sys->i_height,
 630                            &i_x, &i_y, &i_width, &i_height );
 631     }
 632
 633     /* Autohide Cursour */
 634     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 635     {
 636         /* Hide the mouse automatically */
 637         if( p_vout->p_sys->b_mouse_pointer_visible )
 638         {
 639             ToggleCursor( p_vout );
 640         }
 641     }
 642
 643     return 0;
 644 }
 645
 646 /*****************************************************************************
 647  * vout_End: terminate X11 video thread output method
 648  *****************************************************************************
 649  * Destroy the X11 XImages created by vout_Init. It is called at the end of
 650  * the thread, but also each time the window is resized.
 651  *****************************************************************************/
 652 static void vout_End( vout_thread_t *p_vout )
 653 {
 654     int i_index;
 655
 656     /* Free the direct buffers we allocated */
 657     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 658     {
 659         i_index--;
 660         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 661     }
 662 }
 663
 664 /* following functions are local */
 665
 666 /*****************************************************************************
 667  * CreateWindow: open and set-up X11 main window
 668  *****************************************************************************/
 669 static int CreateWindow( vout_thread_t *p_vout )
 670 {
 671     XSizeHints              xsize_hints;
 672     XSetWindowAttributes    xwindow_attributes;
 673     XGCValues               xgcvalues;
 674     XEvent                  xevent;
 675
 676     vlc_bool_t              b_expose;
 677     vlc_bool_t              b_configure_notify;
 678     vlc_bool_t              b_map_notify;
 679
 680     /* Set main window's size */
 681     p_vout->p_sys->i_width = p_vout->i_window_width;
 682     p_vout->p_sys->i_height = p_vout->i_window_height;
 683
 684     /* Prepare window manager hints and properties */
 685     xsize_hints.base_width          = p_vout->p_sys->i_width;
 686     xsize_hints.base_height         = p_vout->p_sys->i_height;
 687     xsize_hints.flags               = PSize;
 688     p_vout->p_sys->wm_protocols     = XInternAtom( p_vout->p_sys->p_display,
 689                                                    "WM_PROTOCOLS", True );
 690     p_vout->p_sys->wm_delete_window = XInternAtom( p_vout->p_sys->p_display,
 691                                                    "WM_DELETE_WINDOW", True );
 692
 693     /* Prepare window attributes */
 694     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 695     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 696                                                      p_vout->p_sys->i_screen);
 697     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 698
 699
 700     /* Create the window and set hints - the window must receive
 701      * ConfigureNotify events, and until it is displayed, Expose and
 702      * MapNotify events. */
 703
 704     p_vout->p_sys->window =
 705         XCreateWindow( p_vout->p_sys->p_display,
 706                        DefaultRootWindow( p_vout->p_sys->p_display ),
 707                        0, 0,
 708                        p_vout->p_sys->i_width,
 709                        p_vout->p_sys->i_height,
 710                        0,
 711                        0, InputOutput, 0,
 712                        CWBackingStore | CWBackPixel | CWEventMask,
 713                        &xwindow_attributes );
 714
 715     /* Set window manager hints and properties: size hints, command,
 716      * window's name, and accepted protocols */
 717     XSetWMNormalHints( p_vout->p_sys->p_display, p_vout->p_sys->window,
 718                        &xsize_hints );
 719     XSetCommand( p_vout->p_sys->p_display, p_vout->p_sys->window,
 720                  p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 721     XStoreName( p_vout->p_sys->p_display, p_vout->p_sys->window,
 722                 VOUT_TITLE " (XMGA output)"
 723               );
 724
 725     if( (p_vout->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 726         || (p_vout->p_sys->wm_delete_window == None)
 727         || !XSetWMProtocols( p_vout->p_sys->p_display, p_vout->p_sys->window,
 728                              &p_vout->p_sys->wm_delete_window, 1 ) )
 729     {
 730         /* WM_DELETE_WINDOW is not supported by window manager */
 731         msg_Err( p_vout, "missing or bad window manager" );
 732     }
 733
 734     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 735      * event when using functions like XCopyArea */
 736     xgcvalues.graphics_exposures = False;
 737     p_vout->p_sys->gc = XCreateGC( p_vout->p_sys->p_display,
 738                                    p_vout->p_sys->window,
 739                                    GCGraphicsExposures, &xgcvalues);
 740
 741     /* Send orders to server, and wait until window is displayed - three
 742      * events must be received: a MapNotify event, an Expose event allowing
 743      * drawing in the window, and a ConfigureNotify to get the window
 744      * dimensions. Once those events have been received, only ConfigureNotify
 745      * events need to be received. */
 746     b_expose = 0;
 747     b_configure_notify = 0;
 748     b_map_notify = 0;
 749     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
 750     do
 751     {
 752         XNextEvent( p_vout->p_sys->p_display, &xevent);
 753         if( (xevent.type == Expose)
 754             && (xevent.xexpose.window == p_vout->p_sys->window) )
 755         {
 756             b_expose = 1;
 757         }
 758         else if( (xevent.type == MapNotify)
 759                  && (xevent.xmap.window == p_vout->p_sys->window) )
 760         {
 761             b_map_notify = 1;
 762         }
 763         else if( (xevent.type == ConfigureNotify)
 764                  && (xevent.xconfigure.window == p_vout->p_sys->window) )
 765         {
 766             b_configure_notify = 1;
 767             p_vout->p_sys->i_width = xevent.xconfigure.width;
 768             p_vout->p_sys->i_height = xevent.xconfigure.height;
 769         }
 770     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 771
 772     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->window,
 773                   StructureNotifyMask | KeyPressMask |
 774                   ButtonPressMask | ButtonReleaseMask |
 775                   PointerMotionMask );
 776
 777     /* If the cursor was formerly blank than blank it again */
 778     if( !p_vout->p_sys->b_mouse_pointer_visible )
 779     {
 780         ToggleCursor( p_vout );
 781         ToggleCursor( p_vout );
 782     }
 783
 784     XSync( p_vout->p_sys->p_display, False );
 785
 786     /* At this stage, the window is open, displayed, and ready to
 787      * receive data */
 788
 789     return( 0 );
 790 }
 791
 792 /*****************************************************************************
 793  * DestroyWindow: destroy the window
 794  *****************************************************************************
 795  *
 796  *****************************************************************************/
 797 static void DestroyWindow( vout_thread_t *p_vout )
 798 {
 799     XSync( p_vout->p_sys->p_display, False );
 800
 801     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 802     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
 803     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 804 }
 805
 806 /*****************************************************************************
 807  * NewPicture: allocate a picture
 808  *****************************************************************************
 809  * Returns 0 on success, -1 otherwise
 810  *****************************************************************************/
 811 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 812 {
 813     /* We know the chroma, allocate a buffer which will be used
 814      * directly by the decoder */
 815     switch( p_vout->output.i_chroma )
 816     {
 817         /* XXX ?? */
 818
 819         default:
 820             /* Unknown chroma, tell the guy to get lost */
 821             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
 822                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
 823             p_pic->i_planes = 0;
 824             return -1;
 825     }
 826
 827     return 0;
 828 }
 829
 830 /*****************************************************************************
 831  * FreePicture: destroy a picture allocated with NewPicture
 832  *****************************************************************************
 833  * Destroy XImage AND associated data. If using Shm, detach shared memory
 834  * segment from server and process, then free it. The XDestroyImage manpage
 835  * says that both the image structure _and_ the data pointed to by the
 836  * image structure are freed, so no need to free p_image->data.
 837  *****************************************************************************/
 838 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 839 {
 840     XSync( p_vout->p_sys->p_display, False );
 841 }
 842
 843 /*****************************************************************************
 844  * ToggleFullScreen: Enable or disable full screen mode
 845  *****************************************************************************
 846  * This function will switch between fullscreen and window mode.
 847  *
 848  *****************************************************************************/
 849 static void ToggleFullScreen ( vout_thread_t *p_vout )
 850 {
 851     Atom prop;
 852     mwmhints_t mwmhints;
 853     int i_xpos, i_ypos, i_width, i_height;
 854     XEvent xevent;
 855     XSetWindowAttributes attributes;
 856
 857     p_vout->b_fullscreen = !p_vout->b_fullscreen;
 858
 859     if( p_vout->b_fullscreen )
 860     {
 861         Window next_parent, parent, *p_dummy, dummy1;
 862         unsigned int dummy2, dummy3;
 863
 864         msg_Dbg( p_vout, "entering fullscreen mode" );
 865
 866         /* Only check the fullscreen method when we actually go fullscreen,
 867          * because to go back to window mode we need to know in which
 868          * fullscreen mode we where */
 869         p_vout->p_sys->b_altfullscreen = config_GetInt( p_vout,
 870                                                         "xmga-altfullscreen" );
 871
 872         /* Save current window coordinates so they can be restored when
 873          * we exit from fullscreen mode. This is the tricky part because
 874          * this heavily depends on the behaviour of the window manager.
 875          * When you use XMoveWindow some window managers will adjust the top
 876          * of the window to the coordinates you gave, but others will instead
 877          * adjust the top of the client area to the coordinates
 878          * (don't forget windows have decorations). */
 879
 880         /* First, get the position and size of the client area */
 881         XGetGeometry( p_vout->p_sys->p_display,
 882                       p_vout->p_sys->window,
 883                       &dummy1,
 884                       &dummy2,
 885                       &dummy3,
 886                       &p_vout->p_sys->i_width_backup_2,
 887                       &p_vout->p_sys->i_height_backup_2,
 888                       &dummy2, &dummy3 );
 889         XTranslateCoordinates( p_vout->p_sys->p_display,
 890                                p_vout->p_sys->window,
 891                                DefaultRootWindow( p_vout->p_sys->p_display ),
 892                                0,
 893                                0,
 894                                &p_vout->p_sys->i_xpos_backup_2,
 895                                &p_vout->p_sys->i_ypos_backup_2,
 896                                &dummy1 );
 897
 898         /* Then try to get the position and size of the whole window */
 899
 900         /* find the real parent of our window (created by the window manager),
 901          * the one which is a direct child of the root window */
 902         next_parent = parent = p_vout->p_sys->window;
 903         while( next_parent != DefaultRootWindow( p_vout->p_sys->p_display ) )
 904         {
 905             parent = next_parent;
 906             XQueryTree( p_vout->p_sys->p_display,
 907                         parent,
 908                         &dummy1,
 909                         &next_parent,
 910                         &p_dummy,
 911                         &dummy2 );
 912             XFree((void *)p_dummy);
 913         }
 914
 915         XGetGeometry( p_vout->p_sys->p_display,
 916                       p_vout->p_sys->window,
 917                       &dummy1,
 918                       &dummy2,
 919                       &dummy3,
 920                       &p_vout->p_sys->i_width_backup,
 921                       &p_vout->p_sys->i_height_backup,
 922                       &dummy2, &dummy3 );
 923
 924         XTranslateCoordinates( p_vout->p_sys->p_display,
 925                                parent,
 926                                DefaultRootWindow( p_vout->p_sys->p_display ),
 927                                0,
 928                                0,
 929                                &p_vout->p_sys->i_xpos_backup,
 930                                &p_vout->p_sys->i_ypos_backup,
 931                                &dummy1 );
 932
 933         /* fullscreen window size and position */
 934         i_xpos = 0;
 935         i_ypos = 0;
 936         i_width = DisplayWidth( p_vout->p_sys->p_display,
 937                                 p_vout->p_sys->i_screen );
 938         i_height = DisplayHeight( p_vout->p_sys->p_display,
 939                                   p_vout->p_sys->i_screen );
 940
 941     }
 942     else
 943     {
 944         msg_Dbg( p_vout, "leaving fullscreen mode" );
 945
 946         i_xpos = p_vout->p_sys->i_xpos_backup;
 947         i_ypos = p_vout->p_sys->i_ypos_backup;
 948         i_width = p_vout->p_sys->i_width_backup;
 949         i_height = p_vout->p_sys->i_height_backup;
 950     }
 951
 952     /* To my knowledge there are two ways to create a borderless window.
 953      * There's the generic way which is to tell x to bypass the window manager,
 954      * but this creates problems with the focus of other applications.
 955      * The other way is to use the motif property "_MOTIF_WM_HINTS" which
 956      * luckily seems to be supported by most window managers.
 957      */
 958     if( !p_vout->p_sys->b_altfullscreen )
 959     {
 960         mwmhints.flags = MWM_HINTS_DECORATIONS;
 961         mwmhints.decorations = !p_vout->b_fullscreen;
 962
 963         prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
 964                             False );
 965         XChangeProperty( p_vout->p_sys->p_display, p_vout->p_sys->window,
 966                          prop, prop, 32, PropModeReplace,
 967                          (unsigned char *)&mwmhints,
 968                          PROP_MWM_HINTS_ELEMENTS );
 969     }
 970     else
 971     {
 972         /* brute force way to remove decorations */
 973         attributes.override_redirect = p_vout->b_fullscreen;
 974         XChangeWindowAttributes( p_vout->p_sys->p_display,
 975                                  p_vout->p_sys->window,
 976                                  CWOverrideRedirect,
 977                                  &attributes);
 978     }
 979
 980     /* We need to unmap and remap the window if we want the window
 981      * manager to take our changes into effect */
 982     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
 983
 984     XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 985                   StructureNotifyMask, &xevent );
 986     while( xevent.type != UnmapNotify )
 987         XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 988                       StructureNotifyMask, &xevent );
 989
 990     XMapRaised( p_vout->p_sys->p_display, p_vout->p_sys->window);
 991
 992     while( xevent.type != MapNotify )
 993         XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 994                       StructureNotifyMask, &xevent );
 995
 996     XMoveResizeWindow( p_vout->p_sys->p_display,
 997                        p_vout->p_sys->window,
 998                        i_xpos,
 999                        i_ypos,
1000                        i_width,
1001                        i_height );
1002
1003     /* Purge all ConfigureNotify events, this is needed to fix a bug where we
1004      * would lose the original size of the window */
1005     while( xevent.type != ConfigureNotify )
1006         XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1007                       StructureNotifyMask, &xevent );
1008     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1009                               StructureNotifyMask, &xevent ) );
1010
1011
1012     /* We need to check that the window was really restored where we wanted */
1013     if( !p_vout->b_fullscreen )
1014     {
1015         Window dummy1;
1016         unsigned int dummy2, dummy3, dummy4, dummy5;
1017
1018         /* Check the position */
1019         XTranslateCoordinates( p_vout->p_sys->p_display,
1020                                p_vout->p_sys->window,
1021                                DefaultRootWindow( p_vout->p_sys->p_display ),
1022                                0,
1023                                0,
1024                                &dummy2,
1025                                &dummy3,
1026                                &dummy1 );
1027         if( dummy2 != p_vout->p_sys->i_xpos_backup_2 ||
1028             dummy3 != p_vout->p_sys->i_ypos_backup_2 )
1029         {
1030             /* Ok it didn't work... second try */
1031
1032             XMoveWindow( p_vout->p_sys->p_display,
1033                          p_vout->p_sys->window,
1034                          p_vout->p_sys->i_xpos_backup_2,
1035                          p_vout->p_sys->i_ypos_backup_2 );
1036
1037             /* Purge all ConfigureNotify events, this is needed to fix a bug
1038              * where we would lose the original size of the window */
1039             XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1040                           StructureNotifyMask, &xevent );
1041             while( xevent.type != ConfigureNotify )
1042                 XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1043                               StructureNotifyMask, &xevent );
1044             while( XCheckWindowEvent( p_vout->p_sys->p_display,
1045                                       p_vout->p_sys->window,
1046                                       StructureNotifyMask, &xevent ) );
1047         }
1048
1049         /* Check the size */
1050         XGetGeometry( p_vout->p_sys->p_display,
1051                       p_vout->p_sys->window,
1052                       &dummy1,
1053                       &dummy2,
1054                       &dummy3,
1055                       &dummy4,
1056                       &dummy5,
1057                       &dummy2, &dummy3 );
1058
1059         if( dummy4 != p_vout->p_sys->i_width_backup_2 ||
1060             dummy5 != p_vout->p_sys->i_height_backup_2 )
1061         {
1062             /* Ok it didn't work... third try */
1063
1064             XResizeWindow( p_vout->p_sys->p_display,
1065                          p_vout->p_sys->window,
1066                          p_vout->p_sys->i_width_backup_2,
1067                          p_vout->p_sys->i_height_backup_2 );
1068
1069             /* Purge all ConfigureNotify events, this is needed to fix a bug
1070              * where we would lose the original size of the window */
1071             XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1072                           StructureNotifyMask, &xevent );
1073             while( xevent.type != ConfigureNotify )
1074                 XWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
1075                               StructureNotifyMask, &xevent );
1076             while( XCheckWindowEvent( p_vout->p_sys->p_display,
1077                                       p_vout->p_sys->window,
1078                                       StructureNotifyMask, &xevent ) );
1079         }
1080     }
1081
1082     if( p_vout->p_sys->b_altfullscreen )
1083         XSetInputFocus(p_vout->p_sys->p_display,
1084                        p_vout->p_sys->window,
1085                        RevertToParent,
1086                        CurrentTime);
1087
1088     /* signal that the size needs to be updated */
1089     p_vout->p_sys->i_width = i_width;
1090     p_vout->p_sys->i_height = i_height;
1091     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1092
1093 }
1094
1095 /*****************************************************************************
1096  * EnableXScreenSaver: enable screen saver
1097  *****************************************************************************
1098  * This function enables the screen saver on a display after it has been
1099  * disabled by XDisableScreenSaver.
1100  * FIXME: what happens if multiple vlc sessions are running at the same
1101  *        time ???
1102  *****************************************************************************/
1103 static void EnableXScreenSaver( vout_thread_t *p_vout )
1104 {
1105     int dummy;
1106
1107     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1108                      p_vout->p_sys->i_ss_interval,
1109                      p_vout->p_sys->i_ss_blanking,
1110                      p_vout->p_sys->i_ss_exposure );
1111
1112     /* Restore DPMS settings */
1113     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1114     {
1115         if( p_vout->p_sys->b_ss_dpms )
1116         {
1117             DPMSEnable( p_vout->p_sys->p_display );
1118         }
1119     }
1120 }
1121
1122 /*****************************************************************************
1123  * DisableXScreenSaver: disable screen saver
1124  *****************************************************************************
1125  * See XEnableXScreenSaver
1126  *****************************************************************************/
1127 static void DisableXScreenSaver( vout_thread_t *p_vout )
1128 {
1129     int dummy;
1130
1131     /* Save screen saver informations */
1132     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1133                      &p_vout->p_sys->i_ss_interval,
1134                      &p_vout->p_sys->i_ss_blanking,
1135                      &p_vout->p_sys->i_ss_exposure );
1136
1137     /* Disable screen saver */
1138     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1139                      p_vout->p_sys->i_ss_interval,
1140                      p_vout->p_sys->i_ss_blanking,
1141                      p_vout->p_sys->i_ss_exposure );
1142
1143     /* Disable DPMS */
1144     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1145     {
1146         CARD16 dummy;
1147         /* Save DPMS current state */
1148         DPMSInfo( p_vout->p_sys->p_display, &dummy,
1149                   &p_vout->p_sys->b_ss_dpms );
1150         DPMSDisable( p_vout->p_sys->p_display );
1151    }
1152 }
1153
1154 /*****************************************************************************
1155  * CreateCursor: create a blank mouse pointer
1156  *****************************************************************************/
1157 static void CreateCursor( vout_thread_t *p_vout )
1158 {
1159     XColor cursor_color;
1160
1161     p_vout->p_sys->cursor_pixmap =
1162         XCreatePixmap( p_vout->p_sys->p_display,
1163                        DefaultRootWindow( p_vout->p_sys->p_display ),
1164                        1, 1, 1 );
1165
1166     XParseColor( p_vout->p_sys->p_display,
1167                  XCreateColormap( p_vout->p_sys->p_display,
1168                                   DefaultRootWindow(
1169                                                     p_vout->p_sys->p_display ),
1170                                   DefaultVisual(
1171                                                 p_vout->p_sys->p_display,
1172                                                 p_vout->p_sys->i_screen ),
1173                                   AllocNone ),
1174                  "black", &cursor_color );
1175
1176     p_vout->p_sys->blank_cursor =
1177         XCreatePixmapCursor( p_vout->p_sys->p_display,
1178                              p_vout->p_sys->cursor_pixmap,
1179                              p_vout->p_sys->cursor_pixmap,
1180                              &cursor_color, &cursor_color, 1, 1 );
1181 }
1182
1183 /*****************************************************************************
1184  * DestroyCursor: destroy the blank mouse pointer
1185  *****************************************************************************/
1186 static void DestroyCursor( vout_thread_t *p_vout )
1187 {
1188     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1189 }
1190
1191 /*****************************************************************************
1192  * ToggleCursor: hide or show the mouse pointer
1193  *****************************************************************************
1194  * This function hides the X pointer if it is visible by setting the pointer
1195  * sprite to a blank one. To show it again, we disable the sprite.
1196  *****************************************************************************/
1197 static void ToggleCursor( vout_thread_t *p_vout )
1198 {
1199     if( p_vout->p_sys->b_mouse_pointer_visible )
1200     {
1201         XDefineCursor( p_vout->p_sys->p_display,
1202                        p_vout->p_sys->window,
1203                        p_vout->p_sys->blank_cursor );
1204         p_vout->p_sys->b_mouse_pointer_visible = 0;
1205     }
1206     else
1207     {
1208         XUndefineCursor( p_vout->p_sys->p_display, p_vout->p_sys->window );
1209         p_vout->p_sys->b_mouse_pointer_visible = 1;
1210     }
1211 }
1212