git.sesse.net Git - vlc/blob - plugins/x11/vout_x11.c

   1 /*****************************************************************************
   2  * vout_x11.c: X11 video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998, 1999, 2000 VideoLAN
   5  * $Id: vout_x11.c,v 1.22 2001/04/28 03:36:25 sam Exp $
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          David Kennedy <dkennedy@tinytoad.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 #define MODULE_NAME x11
  27 #include "modules_inner.h"
  28
  29 /*****************************************************************************
  30  * Preamble
  31  *****************************************************************************/
  32 #include "defs.h"
  33
  34 #include <errno.h>                                                 /* ENOMEM */
  35 #include <stdlib.h>                                                /* free() */
  36 #include <string.h>                                            /* strerror() */
  37
  38 #ifdef HAVE_MACHINE_PARAM_H
  39 /* BSD */
  40 #include <machine/param.h>
  41 #include <sys/types.h>                                     /* typedef ushort */
  42 #include <sys/ipc.h>
  43 #endif
  44
  45 #include <sys/shm.h>                                   /* shmget(), shmctl() */
  46 #include <X11/Xlib.h>
  47 #include <X11/Xutil.h>
  48 #include <X11/keysym.h>
  49 #include <X11/extensions/XShm.h>
  50
  51 #include "config.h"
  52 #include "common.h"
  53 #include "threads.h"
  54 #include "mtime.h"
  55 #include "tests.h"
  56 #include "modules.h"
  57
  58 #include "video.h"
  59 #include "video_output.h"
  60
  61 #include "interface.h"
  62 #include "intf_msg.h"
  63
  64 #include "netutils.h"                                 /* network_ChannelJoin */
  65
  66 #include "main.h"
  67
  68 /*****************************************************************************
  69  * vout_sys_t: video output X11 method descriptor
  70  *****************************************************************************
  71  * This structure is part of the video output thread descriptor.
  72  * It describes the X11 specific properties of an output thread. X11 video
  73  * output is performed through regular resizable windows. Windows can be
  74  * dynamically resized to adapt to the size of the streams.
  75  *****************************************************************************/
  76 typedef struct vout_sys_s
  77 {
  78     /* User settings */
  79     boolean_t           b_shm;               /* shared memory extension flag */
  80
  81     /* Internal settings and properties */
  82     Display *           p_display;                        /* display pointer */
  83     Visual *            p_visual;                          /* visual pointer */
  84     int                 i_screen;                           /* screen number */
  85     Window              window;                               /* root window */
  86     GC                  gc;              /* graphic context instance handler */
  87     Colormap            colormap;               /* colormap used (8bpp only) */
  88
  89     /* Display buffers and shared memory information */
  90     XImage *            p_ximage[2];                       /* XImage pointer */
  91     XShmSegmentInfo     shm_info[2];       /* shared memory zone information */
  92
  93     /* X11 generic properties */
  94     Atom                wm_protocols;
  95     Atom                wm_delete_window;
  96
  97     int                 i_width;                     /* width of main window */
  98     int                 i_height;                   /* height of main window */
  99
 100     /* Screen saver properties */
 101     int                 i_ss_timeout;                             /* timeout */
 102     int                 i_ss_interval;           /* interval between changes */
 103     int                 i_ss_blanking;                      /* blanking mode */
 104     int                 i_ss_exposure;                      /* exposure mode */
 105
 106     /* Auto-hide cursor */
 107     mtime_t     i_lastmoved;
 108
 109     /* Mouse pointer properties */
 110     boolean_t           b_mouse;         /* is the mouse pointer displayed ? */
 111
 112     /* Displaying fullscreen */
 113     boolean_t           b_fullscreen;
 114
 115 } vout_sys_t;
 116
 117 /* Fullscreen needs to be able to hide the wm decorations */
 118 #define MWM_HINTS_DECORATIONS   (1L << 1)
 119 #define PROP_MWM_HINTS_ELEMENTS 5
 120 typedef struct mwmhints_s
 121 {
 122     u32 flags;
 123     u32 functions;
 124     u32 decorations;
 125     s32 input_mode;
 126     u32 status;
 127 } mwmhints_t;
 128
 129 /*****************************************************************************
 130  * Local prototypes
 131  *****************************************************************************/
 132 static int  vout_Probe     ( probedata_t *p_data );
 133 static int  vout_Create    ( struct vout_thread_s * );
 134 static int  vout_Init      ( struct vout_thread_s * );
 135 static void vout_End       ( struct vout_thread_s * );
 136 static void vout_Destroy   ( struct vout_thread_s * );
 137 static int  vout_Manage    ( struct vout_thread_s * );
 138 static void vout_Display   ( struct vout_thread_s * );
 139 static void vout_SetPalette( struct vout_thread_s *, u16*, u16*, u16*, u16* );
 140
 141 static int  X11CreateWindow     ( vout_thread_t *p_vout );
 142 static int  X11InitDisplay      ( vout_thread_t *p_vout, char *psz_display );
 143
 144 static int  X11CreateImage      ( vout_thread_t *p_vout, XImage **pp_ximage );
 145 static void X11DestroyImage     ( XImage *p_ximage );
 146 static int  X11CreateShmImage   ( vout_thread_t *p_vout, XImage **pp_ximage,
 147                                   XShmSegmentInfo *p_shm_info );
 148 static void X11DestroyShmImage  ( vout_thread_t *p_vout, XImage *p_ximage,
 149                                   XShmSegmentInfo *p_shm_info );
 150
 151 static void X11TogglePointer            ( vout_thread_t *p_vout );
 152 static void X11EnableScreenSaver        ( vout_thread_t *p_vout );
 153 static void X11DisableScreenSaver       ( vout_thread_t *p_vout );
 154
 155 /*****************************************************************************
 156  * Functions exported as capabilities. They are declared as static so that
 157  * we don't pollute the namespace too much.
 158  *****************************************************************************/
 159 void _M( vout_getfunctions )( function_list_t * p_function_list )
 160 {
 161     p_function_list->pf_probe = vout_Probe;
 162     p_function_list->functions.vout.pf_create     = vout_Create;
 163     p_function_list->functions.vout.pf_init       = vout_Init;
 164     p_function_list->functions.vout.pf_end        = vout_End;
 165     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 166     p_function_list->functions.vout.pf_manage     = vout_Manage;
 167     p_function_list->functions.vout.pf_display    = vout_Display;
 168     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 169 }
 170
 171 /*****************************************************************************
 172  * vout_Probe: probe the video driver and return a score
 173  *****************************************************************************
 174  * This function tries to initialize SDL and returns a score to the
 175  * plugin manager so that it can select the best plugin.
 176  *****************************************************************************/
 177 static int vout_Probe( probedata_t *p_data )
 178 {
 179     if( TestMethod( VOUT_METHOD_VAR, "x11" ) )
 180     {
 181         return( 999 );
 182     }
 183
 184     return( 50 );
 185 }
 186
 187 /*****************************************************************************
 188  * vout_Create: allocate X11 video thread output method
 189  *****************************************************************************
 190  * This function allocate and initialize a X11 vout method. It uses some of the
 191  * vout properties to choose the window size, and change them according to the
 192  * actual properties of the display.
 193  *****************************************************************************/
 194 static int vout_Create( vout_thread_t *p_vout )
 195 {
 196     char *psz_display;
 197
 198     /* Allocate structure */
 199     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 200     if( p_vout->p_sys == NULL )
 201     {
 202         intf_ErrMsg( "vout error: %s", strerror(ENOMEM) );
 203         return( 1 );
 204     }
 205
 206     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 207     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
 208     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 209
 210     if( p_vout->p_sys->p_display == NULL )                          /* error */
 211     {
 212         intf_ErrMsg( "vout error: cannot open display %s", psz_display );
 213         free( p_vout->p_sys );
 214         return( 1 );
 215     }
 216     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 217
 218     p_vout->p_sys->b_fullscreen
 219         = main_GetIntVariable( VOUT_FULLSCREEN_VAR, VOUT_FULLSCREEN_DEFAULT );
 220
 221     /* Spawn base window - this window will include the video output window,
 222      * but also command buttons, subtitles and other indicators */
 223
 224     if( X11CreateWindow( p_vout ) )
 225     {
 226         intf_ErrMsg( "vout error: cannot create X11 window" );
 227         XCloseDisplay( p_vout->p_sys->p_display );
 228         free( p_vout->p_sys );
 229         return( 1 );
 230     }
 231
 232     /* Open and initialize device. This function issues its own error messages.
 233      * Since XLib is usually not thread-safe, we can't use the same display
 234      * pointer than the interface or another thread. However, the root window
 235      * id is still valid. */
 236     if( X11InitDisplay( p_vout, psz_display ) )
 237     {
 238         intf_ErrMsg( "vout error: cannot initialize X11 display" );
 239         XCloseDisplay( p_vout->p_sys->p_display );
 240         free( p_vout->p_sys );
 241         return( 1 );
 242     }
 243
 244     p_vout->p_sys->b_mouse = 1;
 245
 246     /* Disable screen saver and return */
 247     X11DisableScreenSaver( p_vout );
 248
 249     return( 0 );
 250 }
 251
 252 /*****************************************************************************
 253  * vout_Init: initialize X11 video thread output method
 254  *****************************************************************************
 255  * This function create the XImages needed by the output thread. It is called
 256  * at the beginning of the thread, but also each time the window is resized.
 257  *****************************************************************************/
 258 static int vout_Init( vout_thread_t *p_vout )
 259 {
 260     int i_err;
 261
 262 #ifdef SYS_DARWIN1_3
 263     /* FIXME : As of 2001-03-16, XFree4 for MacOS X does not support Xshm. */
 264     p_vout->p_sys->b_shm = 0;
 265 #endif
 266
 267     /* Create XImages using XShm extension - on failure, fall back to regular
 268      * way (and destroy the first image if it was created successfully) */
 269     if( p_vout->p_sys->b_shm )
 270     {
 271         /* Create first image */
 272         i_err = X11CreateShmImage( p_vout, &p_vout->p_sys->p_ximage[0],
 273                                    &p_vout->p_sys->shm_info[0] );
 274         if( !i_err )                         /* first image has been created */
 275         {
 276             /* Create second image */
 277             if( X11CreateShmImage( p_vout, &p_vout->p_sys->p_ximage[1],
 278                                    &p_vout->p_sys->shm_info[1] ) )
 279             {                             /* error creating the second image */
 280                 X11DestroyShmImage( p_vout, p_vout->p_sys->p_ximage[0],
 281                                     &p_vout->p_sys->shm_info[0] );
 282                 i_err = 1;
 283             }
 284         }
 285         if( i_err )                                      /* an error occured */
 286         {
 287             intf_Msg( "vout: XShm video extension unavailable" );
 288             p_vout->p_sys->b_shm = 0;
 289         }
 290     }
 291
 292     /* Create XImages without XShm extension */
 293     if( !p_vout->p_sys->b_shm )
 294     {
 295         if( X11CreateImage( p_vout, &p_vout->p_sys->p_ximage[0] ) )
 296         {
 297             intf_ErrMsg( "vout error: cannot create images" );
 298             p_vout->p_sys->p_ximage[0] = NULL;
 299             p_vout->p_sys->p_ximage[1] = NULL;
 300             return( 1 );
 301         }
 302         if( X11CreateImage( p_vout, &p_vout->p_sys->p_ximage[1] ) )
 303         {
 304             intf_ErrMsg( "vout error: cannot create images" );
 305             X11DestroyImage( p_vout->p_sys->p_ximage[0] );
 306             p_vout->p_sys->p_ximage[0] = NULL;
 307             p_vout->p_sys->p_ximage[1] = NULL;
 308             return( 1 );
 309         }
 310     }
 311
 312     /* Set bytes per line and initialize buffers */
 313     p_vout->i_bytes_per_line = p_vout->p_sys->p_ximage[0]->bytes_per_line;
 314     vout_SetBuffers( p_vout, p_vout->p_sys->p_ximage[ 0 ]->data,
 315                      p_vout->p_sys->p_ximage[ 1 ]->data );
 316
 317     /* Set date for autohiding cursor */
 318     p_vout->p_sys->i_lastmoved = mdate();
 319
 320     return( 0 );
 321 }
 322
 323 /*****************************************************************************
 324  * vout_End: terminate X11 video thread output method
 325  *****************************************************************************
 326  * Destroy the X11 XImages created by vout_Init. It is called at the end of
 327  * the thread, but also each time the window is resized.
 328  *****************************************************************************/
 329 static void vout_End( vout_thread_t *p_vout )
 330 {
 331     if( p_vout->p_sys->b_shm )                             /* Shm XImages... */
 332     {
 333         X11DestroyShmImage( p_vout, p_vout->p_sys->p_ximage[0],
 334                             &p_vout->p_sys->shm_info[0] );
 335         X11DestroyShmImage( p_vout, p_vout->p_sys->p_ximage[1],
 336                             &p_vout->p_sys->shm_info[1] );
 337     }
 338     else                                          /* ...or regular XImages */
 339     {
 340         X11DestroyImage( p_vout->p_sys->p_ximage[0] );
 341         X11DestroyImage( p_vout->p_sys->p_ximage[1] );
 342     }
 343 }
 344
 345 /*****************************************************************************
 346  * vout_Destroy: destroy X11 video thread output method
 347  *****************************************************************************
 348  * Terminate an output method created by vout_CreateOutputMethod
 349  *****************************************************************************/
 350 static void vout_Destroy( vout_thread_t *p_vout )
 351 {
 352     /* Enable screen saver */
 353     X11EnableScreenSaver( p_vout );
 354
 355     /* Destroy colormap */
 356     if( p_vout->i_screen_depth == 8 )
 357     {
 358         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 359     }
 360
 361     /* Destroy window */
 362     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 363     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
 364     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 365
 366     XCloseDisplay( p_vout->p_sys->p_display );
 367
 368     /* Destroy structure */
 369     free( p_vout->p_sys );
 370 }
 371
 372 /*****************************************************************************
 373  * vout_Manage: handle X11 events
 374  *****************************************************************************
 375  * This function should be called regularly by video output thread. It manages
 376  * X11 events and allows window resizing. It returns a non null value on
 377  * error.
 378  *****************************************************************************/
 379 static int vout_Manage( vout_thread_t *p_vout )
 380 {
 381     XEvent      xevent;                                         /* X11 event */
 382     boolean_t   b_resized;                        /* window has been resized */
 383     boolean_t   b_gofullscreen;                    /* user wants full-screen */
 384     char        i_key;                                    /* ISO Latin-1 key */
 385     KeySym      x_key_symbol;
 386
 387     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 388      * output window's size changed, MapNotify and UnmapNotify to know if the
 389      * window is mapped (and if the display is useful), and ClientMessages
 390      * to intercept window destruction requests */
 391     b_resized = 0;
 392     b_gofullscreen = 0;
 393
 394     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 395                               StructureNotifyMask | KeyPressMask |
 396                               ButtonPressMask | ButtonReleaseMask |
 397                               PointerMotionMask | Button1MotionMask , &xevent )
 398            == True )
 399     {
 400         /* ConfigureNotify event: prepare  */
 401         if( (xevent.type == ConfigureNotify)
 402             && ((xevent.xconfigure.width != p_vout->p_sys->i_width)
 403                 || (xevent.xconfigure.height != p_vout->p_sys->i_height)) )
 404         {
 405             /* Update dimensions */
 406             b_resized = 1;
 407             p_vout->p_sys->i_width = xevent.xconfigure.width;
 408             p_vout->p_sys->i_height = xevent.xconfigure.height;
 409         }
 410         /* MapNotify event: change window status and disable screen saver */
 411         else if( xevent.type == MapNotify)
 412         {
 413             if( (p_vout != NULL) && !p_vout->b_active )
 414             {
 415                 X11DisableScreenSaver( p_vout );
 416                 p_vout->b_active = 1;
 417             }
 418         }
 419         /* UnmapNotify event: change window status and enable screen saver */
 420         else if( xevent.type == UnmapNotify )
 421         {
 422             if( (p_vout != NULL) && p_vout->b_active )
 423             {
 424                 X11EnableScreenSaver( p_vout );
 425                 p_vout->b_active = 0;
 426             }
 427         }
 428         /* Keyboard event */
 429         else if( xevent.type == KeyPress )
 430         {
 431             /* We may have keys like F1 trough F12, ESC ... */
 432             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 433                                              xevent.xkey.keycode, 0 );
 434             switch( x_key_symbol )
 435             {
 436                  case XK_Escape:
 437                      p_main->p_intf->b_die = 1;
 438                      break;
 439                  case XK_Menu:
 440                      p_main->p_intf->b_menu_change = 1;
 441                      break;
 442                  default:
 443                      /* "Normal Keys"
 444                       * The reason why I use this instead of XK_0 is that
 445                       * with XLookupString, we don't have to care about
 446                       * keymaps. */
 447
 448                     if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 449                     {
 450                         /* FIXME: handle stuff here */
 451                         switch( i_key )
 452                         {
 453                         case 'q':
 454                         case 'Q':
 455                             p_main->p_intf->b_die = 1;
 456                             break;
 457                         case 'f':
 458                         case 'F':
 459                             b_gofullscreen = 1;
 460                             break;
 461                         case '0':
 462                             network_ChannelJoin( 0 );
 463                             break;
 464                         case '1':
 465                             network_ChannelJoin( 1 );
 466                             break;
 467                         case '2':
 468                             network_ChannelJoin( 2 );
 469                             break;
 470                         case '3':
 471                             network_ChannelJoin( 3 );
 472                             break;
 473                         case '4':
 474                             network_ChannelJoin( 4 );
 475                             break;
 476                         case '5':
 477                             network_ChannelJoin( 5 );
 478                             break;
 479                         case '6':
 480                             network_ChannelJoin( 6 );
 481                             break;
 482                         case '7':
 483                             network_ChannelJoin( 7 );
 484                             break;
 485                         case '8':
 486                             network_ChannelJoin( 8 );
 487                             break;
 488                         case '9':
 489                             network_ChannelJoin( 9 );
 490                             break;
 491                         default:
 492                             if( intf_ProcessKey( p_main->p_intf,
 493                                                  (char )i_key ) )
 494                             {
 495                                intf_DbgMsg( "vout: unhandled key '%c' (%i)",
 496                                             (char)i_key, i_key );
 497                             }
 498                             break;
 499                         }
 500                     }
 501                 break;
 502             }
 503         }
 504         /* Mouse click */
 505         else if( xevent.type == ButtonPress )
 506         {
 507             switch( ((XButtonEvent *)&xevent)->button )
 508             {
 509                 case Button1:
 510                     /* in this part we will eventually manage
 511                      * clicks for DVD navigation for instance */
 512                     break;
 513             }
 514         }
 515         /* Mouse release */
 516         else if( xevent.type == ButtonRelease )
 517         {
 518             switch( ((XButtonEvent *)&xevent)->button )
 519             {
 520                 case Button3:
 521                     /* FIXME: need locking ! */
 522                     p_main->p_intf->b_menu_change = 1;
 523                     break;
 524             }
 525         }
 526         /* Mouse move */
 527         else if( xevent.type == MotionNotify )
 528         {
 529             p_vout->p_sys->i_lastmoved = mdate();
 530             if( ! p_vout->p_sys->b_mouse )
 531             {
 532                 X11TogglePointer( p_vout );
 533             }
 534         }
 535         /* Other event */
 536         else
 537         {
 538             intf_WarnMsg( 1, "vout: unhandled event %d received", xevent.type );
 539         }
 540     }
 541
 542     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 543      * are handled - according to the man pages, the format is always 32
 544      * in this case */
 545     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 546                              ClientMessage, &xevent ) )
 547     {
 548         if( (xevent.xclient.message_type == p_vout->p_sys->wm_protocols)
 549             && (xevent.xclient.data.l[0] == p_vout->p_sys->wm_delete_window ) )
 550         {
 551             p_main->p_intf->b_die = 1;
 552         }
 553         else
 554         {
 555             intf_DbgMsg( "vout: unhandled ClientMessage received" );
 556         }
 557     }
 558
 559     if ( b_gofullscreen )
 560     {
 561         char *psz_display;
 562         /* Open display, unsing 'vlc_display' or the DISPLAY
 563          * environment variable */
 564         psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
 565
 566         intf_DbgMsg( "vout: changing full-screen status" );
 567
 568         p_vout->p_sys->b_fullscreen = !p_vout->p_sys->b_fullscreen;
 569
 570         /* Get rid of the old window */
 571         XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 572         XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
 573
 574         /* And create a new one */
 575         if( X11CreateWindow( p_vout ) )
 576         {
 577             intf_ErrMsg( "vout error: cannot create X11 window" );
 578             XCloseDisplay( p_vout->p_sys->p_display );
 579
 580             free( p_vout->p_sys );
 581             return( 1 );
 582         }
 583
 584         if( X11InitDisplay( p_vout, psz_display ) )
 585         {
 586             intf_ErrMsg( "vout error: cannot initialize X11 display" );
 587             XCloseDisplay( p_vout->p_sys->p_display );
 588             free( p_vout->p_sys );
 589             return( 1 );
 590         }
 591         /* We've changed the size, update it */
 592         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 593     }
 594
 595     /*
 596      * Handle vout window resizing
 597      */
 598     if( b_resized )
 599     {
 600         /* If interface window has been resized, change vout size */
 601         intf_DbgMsg( "vout: resizing output window" );
 602         p_vout->i_width =  p_vout->p_sys->i_width;
 603         p_vout->i_height = p_vout->p_sys->i_height;
 604         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 605     }
 606     else if( (p_vout->i_width  != p_vout->p_sys->i_width) ||
 607              (p_vout->i_height != p_vout->p_sys->i_height) )
 608     {
 609         /* If video output size has changed, change interface window size */
 610         intf_DbgMsg( "vout: resizing output window" );
 611         p_vout->p_sys->i_width =    p_vout->i_width;
 612         p_vout->p_sys->i_height =   p_vout->i_height;
 613         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->window,
 614                        p_vout->p_sys->i_width, p_vout->p_sys->i_height );
 615     }
 616     /*
 617      * Color/Grayscale or gamma change: in 8bpp, just change the colormap
 618      */
 619     if( (p_vout->i_changes & VOUT_GRAYSCALE_CHANGE)
 620         && (p_vout->i_screen_depth == 8) )
 621     {
 622         /* FIXME: clear flags ?? */
 623     }
 624
 625     /*
 626      * Size change
 627      */
 628     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 629     {
 630         intf_DbgMsg( "vout info: resizing window" );
 631         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 632
 633         /* Resize window */
 634         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->window,
 635                        p_vout->i_width, p_vout->i_height );
 636
 637         /* Destroy XImages to change their size */
 638         vout_End( p_vout );
 639
 640         /* Recreate XImages. If SysInit failed, the thread can't go on. */
 641         if( vout_Init( p_vout ) )
 642         {
 643             intf_ErrMsg( "vout error: cannot resize display" );
 644             return( 1 );
 645        }
 646
 647         /* Tell the video output thread that it will need to rebuild YUV
 648          * tables. This is needed since conversion buffer size may have
 649          * changed */
 650         p_vout->i_changes |= VOUT_YUV_CHANGE;
 651         intf_Msg( "vout: video display resized (%dx%d)",
 652                   p_vout->i_width, p_vout->i_height);
 653     }
 654
 655     /* Autohide Cursour */
 656     if( mdate() - p_vout->p_sys->i_lastmoved > 2000000 )
 657     {
 658         /* Hide the mouse automatically */
 659         if( p_vout->p_sys->b_mouse )
 660         {
 661             X11TogglePointer( p_vout );
 662         }
 663     }
 664
 665
 666     return 0;
 667 }
 668
 669 /*****************************************************************************
 670  * vout_Display: displays previously rendered output
 671  *****************************************************************************
 672  * This function send the currently rendered image to X11 server, wait until
 673  * it is displayed and switch the two rendering buffer, preparing next frame.
 674  *****************************************************************************/
 675 static void vout_Display( vout_thread_t *p_vout )
 676 {
 677     if( p_vout->p_sys->b_shm)                                /* XShm is used */
 678     {
 679         /* Display rendered image using shared memory extension */
 680         XShmPutImage(p_vout->p_sys->p_display, p_vout->p_sys->window, p_vout->p_sys->gc,
 681                      p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ],
 682                      0, 0, 0, 0,
 683                      p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ]->width,
 684                      p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ]->height, True);
 685
 686         /* Send the order to the X server */
 687         XSync(p_vout->p_sys->p_display, False);
 688     }
 689     else                                /* regular X11 capabilities are used */
 690     {
 691         XPutImage(p_vout->p_sys->p_display, p_vout->p_sys->window, p_vout->p_sys->gc,
 692                   p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ],
 693                   0, 0, 0, 0,
 694                   p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ]->width,
 695                   p_vout->p_sys->p_ximage[ p_vout->i_buffer_index ]->height);
 696
 697         /* Send the order to the X server */
 698         XSync(p_vout->p_sys->p_display, False);
 699     }
 700 }
 701
 702 /*****************************************************************************
 703  * vout_SetPalette: sets an 8 bpp palette
 704  *****************************************************************************
 705  * This function sets the palette given as an argument. It does not return
 706  * anything, but could later send information on which colors it was unable
 707  * to set.
 708  *****************************************************************************/
 709 static void vout_SetPalette( p_vout_thread_t p_vout,
 710                              u16 *red, u16 *green, u16 *blue, u16 *transp )
 711 {
 712     int i, j;
 713     XColor p_colors[255];
 714
 715     intf_DbgMsg( "vout: Palette change called" );
 716
 717     /* allocate palette */
 718     for( i = 0, j = 255; i < 255; i++, j-- )
 719     {
 720         /* kludge: colors are indexed reversely because color 255 seems
 721          * to be reserved for black even if we try to set it to white */
 722         p_colors[ i ].pixel = j;
 723         p_colors[ i ].pad   = 0;
 724         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
 725         p_colors[ i ].red   = red[ j ];
 726         p_colors[ i ].blue  = blue[ j ];
 727         p_colors[ i ].green = green[ j ];
 728     }
 729
 730     XStoreColors( p_vout->p_sys->p_display,
 731                   p_vout->p_sys->colormap, p_colors, 256 );
 732 }
 733
 734 /* following functions are local */
 735
 736 /*****************************************************************************
 737  * X11CreateWindow: open and set-up X11 main window
 738  *****************************************************************************/
 739 static int X11CreateWindow( vout_thread_t *p_vout )
 740 {
 741     XSizeHints              xsize_hints;
 742     XSetWindowAttributes    xwindow_attributes;
 743     XGCValues               xgcvalues;
 744     XEvent                  xevent;
 745     Atom                    prop;
 746     mwmhints_t              mwmhints;
 747
 748     boolean_t               b_expose;
 749     boolean_t               b_configure_notify;
 750     boolean_t               b_map_notify;
 751
 752     /* If we're full screen, we're full screen! */
 753     if( p_vout->p_sys->b_fullscreen )
 754     {
 755         p_vout->p_sys->i_width = DisplayWidth( p_vout->p_sys->p_display,
 756                                                p_vout->p_sys->i_screen );
 757         p_vout->p_sys->i_height =  DisplayHeight( p_vout->p_sys->p_display,
 758                                                   p_vout->p_sys->i_screen );
 759         p_vout->i_width =  p_vout->p_sys->i_width;
 760         p_vout->i_height = p_vout->p_sys->i_height;
 761     }
 762     else
 763     {
 764         /* Set main window's size */
 765         p_vout->p_sys->i_width =  main_GetIntVariable( VOUT_WIDTH_VAR,
 766                                                        VOUT_WIDTH_DEFAULT );
 767         p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 768                                                        VOUT_HEIGHT_DEFAULT );
 769         p_vout->i_width =  p_vout->p_sys->i_width;
 770         p_vout->i_height = p_vout->p_sys->i_height;
 771     }
 772
 773     /* Prepare window manager hints and properties */
 774     xsize_hints.base_width          = p_vout->p_sys->i_width;
 775     xsize_hints.base_height         = p_vout->p_sys->i_height;
 776     xsize_hints.flags               = PSize;
 777     p_vout->p_sys->wm_protocols     = XInternAtom( p_vout->p_sys->p_display,
 778                                                    "WM_PROTOCOLS", True );
 779     p_vout->p_sys->wm_delete_window = XInternAtom( p_vout->p_sys->p_display,
 780                                                    "WM_DELETE_WINDOW", True );
 781
 782     /* Prepare window attributes */
 783     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 784     xwindow_attributes.background_pixel = BlackPixel( p_vout->p_sys->p_display,
 785                                                       p_vout->p_sys->i_screen );
 786     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 787
 788
 789     /* Create the window and set hints - the window must receive ConfigureNotify
 790      * events, and, until it is displayed, Expose and MapNotify events. */
 791
 792     p_vout->p_sys->window =
 793         XCreateWindow( p_vout->p_sys->p_display,
 794                        DefaultRootWindow( p_vout->p_sys->p_display ),
 795                        0, 0,
 796                        p_vout->p_sys->i_width, p_vout->p_sys->i_height, 0,
 797                        0, InputOutput, 0,
 798                        CWBackingStore | CWBackPixel | CWEventMask,
 799                        &xwindow_attributes );
 800
 801     if ( p_vout->p_sys->b_fullscreen )
 802     {
 803         prop = XInternAtom(p_vout->p_sys->p_display, "_MOTIF_WM_HINTS", False);
 804         mwmhints.flags = MWM_HINTS_DECORATIONS;
 805         mwmhints.decorations = 0;
 806         XChangeProperty( p_vout->p_sys->p_display, p_vout->p_sys->window,
 807                          prop, prop, 32, PropModeReplace,
 808                          (unsigned char *)&mwmhints, PROP_MWM_HINTS_ELEMENTS );
 809
 810         XSetTransientForHint( p_vout->p_sys->p_display,
 811                               p_vout->p_sys->window, None );
 812         XRaiseWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 813     }
 814
 815     /* Set window manager hints and properties: size hints, command,
 816      * window's name, and accepted protocols */
 817     XSetWMNormalHints( p_vout->p_sys->p_display, p_vout->p_sys->window,
 818                        &xsize_hints );
 819     XSetCommand( p_vout->p_sys->p_display, p_vout->p_sys->window,
 820                  p_main->ppsz_argv, p_main->i_argc );
 821     XStoreName( p_vout->p_sys->p_display, p_vout->p_sys->window,
 822                 VOUT_TITLE " (X11 output)" );
 823
 824     if( (p_vout->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 825         || (p_vout->p_sys->wm_delete_window == None)
 826         || !XSetWMProtocols( p_vout->p_sys->p_display, p_vout->p_sys->window,
 827                              &p_vout->p_sys->wm_delete_window, 1 ) )
 828     {
 829         /* WM_DELETE_WINDOW is not supported by window manager */
 830         intf_Msg( "vout error: missing or bad window manager" );
 831     }
 832
 833     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 834      * event when using functions like XCopyArea */
 835     xgcvalues.graphics_exposures = False;
 836     p_vout->p_sys->gc = XCreateGC( p_vout->p_sys->p_display,
 837                                    p_vout->p_sys->window,
 838                                    GCGraphicsExposures, &xgcvalues);
 839
 840     /* Send orders to server, and wait until window is displayed - three
 841      * events must be received: a MapNotify event, an Expose event allowing
 842      * drawing in the window, and a ConfigureNotify to get the window
 843      * dimensions. Once those events have been received, only ConfigureNotify
 844      * events need to be received. */
 845     b_expose = 0;
 846     b_configure_notify = 0;
 847     b_map_notify = 0;
 848     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
 849     do
 850     {
 851         XNextEvent( p_vout->p_sys->p_display, &xevent);
 852         if( (xevent.type == Expose)
 853             && (xevent.xexpose.window == p_vout->p_sys->window) )
 854         {
 855             b_expose = 1;
 856         }
 857         else if( (xevent.type == MapNotify)
 858                  && (xevent.xmap.window == p_vout->p_sys->window) )
 859         {
 860             b_map_notify = 1;
 861         }
 862         else if( (xevent.type == ConfigureNotify)
 863                  && (xevent.xconfigure.window == p_vout->p_sys->window) )
 864         {
 865             b_configure_notify = 1;
 866             p_vout->p_sys->i_width = xevent.xconfigure.width;
 867             p_vout->p_sys->i_height = xevent.xconfigure.height;
 868         }
 869     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 870
 871     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->window,
 872                   StructureNotifyMask | KeyPressMask |
 873                   ButtonPressMask | ButtonReleaseMask |
 874                   PointerMotionMask );
 875
 876     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 877     {
 878         /* Allocate a new palette */
 879         p_vout->p_sys->colormap =
 880             XCreateColormap( p_vout->p_sys->p_display,
 881                              DefaultRootWindow( p_vout->p_sys->p_display ),
 882                              DefaultVisual( p_vout->p_sys->p_display,
 883                                             p_vout->p_sys->i_screen ),
 884                              AllocAll );
 885
 886         xwindow_attributes.colormap = p_vout->p_sys->colormap;
 887         XChangeWindowAttributes( p_vout->p_sys->p_display,
 888                                  p_vout->p_sys->window,
 889                                  CWColormap, &xwindow_attributes );
 890     }
 891
 892     if( p_vout->p_sys->b_fullscreen )
 893     {
 894         XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 895                         RevertToNone, CurrentTime );
 896         XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->window, 0, 0 );
 897     }
 898
 899     /* At this stage, the window is open, displayed, and ready to
 900      * receive data */
 901
 902     return( 0 );
 903 }
 904
 905 /*****************************************************************************
 906  * X11InitDisplay: open and initialize X11 device
 907  *****************************************************************************
 908  * Create a window according to video output given size, and set other
 909  * properties according to the display properties.
 910  *****************************************************************************/
 911 static int X11InitDisplay( vout_thread_t *p_vout, char *psz_display )
 912 {
 913     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
 914     XVisualInfo *               p_xvisual;           /* visuals informations */
 915     XVisualInfo                 xvisual_template;         /* visual template */
 916     int                         i_count;                       /* array size */
 917
 918
 919
 920     /* Initialize structure */
 921     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 922     p_vout->p_sys->b_shm    = ( XShmQueryExtension( p_vout->p_sys->p_display )
 923                                  == True );
 924     if( !p_vout->p_sys->b_shm )
 925     {
 926         intf_Msg( "vout: XShm video extension is not available" );
 927     }
 928
 929     /* Get screen depth */
 930     p_vout->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
 931                                             p_vout->p_sys->i_screen );
 932     switch( p_vout->i_screen_depth )
 933     {
 934     case 8:
 935         /*
 936          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
 937          */
 938         xvisual_template.screen =   p_vout->p_sys->i_screen;
 939         xvisual_template.class =    DirectColor;
 940         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
 941                                     VisualScreenMask | VisualClassMask,
 942                                     &xvisual_template, &i_count );
 943         if( p_xvisual == NULL )
 944         {
 945             intf_ErrMsg( "vout error: no PseudoColor visual available" );
 946             return( 1 );
 947         }
 948         p_vout->i_bytes_per_pixel = 1;
 949         break;
 950     case 15:
 951     case 16:
 952     case 24:
 953     default:
 954         /*
 955          * Screen depth is higher than 8bpp. TrueColor visual is used.
 956          */
 957         xvisual_template.screen =   p_vout->p_sys->i_screen;
 958         xvisual_template.class =    TrueColor;
 959         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
 960                                     VisualScreenMask | VisualClassMask,
 961                                     &xvisual_template, &i_count );
 962         if( p_xvisual == NULL )
 963         {
 964             intf_ErrMsg( "vout error: no TrueColor visual available" );
 965             return( 1 );
 966         }
 967         p_vout->i_red_mask =        p_xvisual->red_mask;
 968         p_vout->i_green_mask =      p_xvisual->green_mask;
 969         p_vout->i_blue_mask =       p_xvisual->blue_mask;
 970
 971         /* There is no difference yet between 3 and 4 Bpp. The only way
 972          * to find the actual number of bytes per pixel is to list supported
 973          * pixmap formats. */
 974         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
 975         p_vout->i_bytes_per_pixel = 0;
 976
 977         for( ; i_count-- ; p_formats++ )
 978         {
 979             /* Under XFree4.0, the list contains pixmap formats available
 980              * through all video depths ; so we have to check against current
 981              * depth. */
 982             if( p_formats->depth == p_vout->i_screen_depth )
 983             {
 984                 if( p_formats->bits_per_pixel / 8
 985                         > p_vout->i_bytes_per_pixel )
 986                 {
 987                     p_vout->i_bytes_per_pixel = p_formats->bits_per_pixel / 8;
 988                 }
 989             }
 990         }
 991         break;
 992     }
 993     p_vout->p_sys->p_visual = p_xvisual->visual;
 994     XFree( p_xvisual );
 995
 996     return( 0 );
 997 }
 998
 999 /*****************************************************************************
1000  * X11CreateImage: create an XImage
1001  *****************************************************************************
1002  * Create a simple XImage used as a buffer.
1003  *****************************************************************************/
1004 static int X11CreateImage( vout_thread_t *p_vout, XImage **pp_ximage )
1005 {
1006     byte_t *    pb_data;                          /* image data storage zone */
1007     int         i_quantum;                     /* XImage quantum (see below) */
1008
1009     /* Allocate memory for image */
1010     p_vout->i_bytes_per_line = p_vout->i_width * p_vout->i_bytes_per_pixel;
1011     pb_data = (byte_t *) malloc( p_vout->i_bytes_per_line * p_vout->i_height );
1012     if( !pb_data )                                                  /* error */
1013     {
1014         intf_ErrMsg( "vout error: %s", strerror(ENOMEM));
1015         return( 1 );
1016     }
1017
1018     /* Optimize the quantum of a scanline regarding its size - the quantum is
1019        a diviser of the number of bits between the start of two scanlines. */
1020     if( !(( p_vout->i_bytes_per_line ) % 32) )
1021     {
1022         i_quantum = 32;
1023     }
1024     else
1025     {
1026         if( !(( p_vout->i_bytes_per_line ) % 16) )
1027         {
1028             i_quantum = 16;
1029         }
1030         else
1031         {
1032             i_quantum = 8;
1033         }
1034     }
1035
1036     /* Create XImage */
1037     *pp_ximage = XCreateImage( p_vout->p_sys->p_display,
1038                                p_vout->p_sys->p_visual, p_vout->i_screen_depth,
1039                                ZPixmap, 0, pb_data,
1040                                p_vout->i_width, p_vout->i_height, i_quantum, 0);
1041     if(! *pp_ximage )                                               /* error */
1042     {
1043         intf_ErrMsg( "vout error: XCreateImage() failed" );
1044         free( pb_data );
1045         return( 1 );
1046     }
1047
1048     return 0;
1049 }
1050
1051 /*****************************************************************************
1052  * X11CreateShmImage: create an XImage using shared memory extension
1053  *****************************************************************************
1054  * Prepare an XImage for DisplayX11ShmImage function.
1055  * The order of the operations respects the recommandations of the mit-shm
1056  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1057  * there.
1058  *****************************************************************************/
1059 static int X11CreateShmImage( vout_thread_t *p_vout, XImage **pp_ximage,
1060                               XShmSegmentInfo *p_shm_info)
1061 {
1062     /* Create XImage */
1063     *pp_ximage =
1064         XShmCreateImage( p_vout->p_sys->p_display, p_vout->p_sys->p_visual,
1065                          p_vout->i_screen_depth, ZPixmap, 0,
1066                          p_shm_info, p_vout->i_width, p_vout->i_height );
1067     if(! *pp_ximage )                                               /* error */
1068     {
1069         intf_ErrMsg( "vout error: XShmCreateImage() failed" );
1070         return( 1 );
1071     }
1072
1073     /* Allocate shared memory segment - 0777 set the access permission
1074      * rights (like umask), they are not yet supported by X servers */
1075     p_shm_info->shmid =
1076         shmget( IPC_PRIVATE, (*pp_ximage)->bytes_per_line
1077                                  * (*pp_ximage)->height, IPC_CREAT | 0777);
1078     if( p_shm_info->shmid < 0)                                      /* error */
1079     {
1080         intf_ErrMsg( "vout error: cannot allocate shared image data (%s)",
1081                     strerror(errno));
1082         XDestroyImage( *pp_ximage );
1083         return( 1 );
1084     }
1085
1086     /* Attach shared memory segment to process (read/write) */
1087     p_shm_info->shmaddr = (*pp_ximage)->data = shmat(p_shm_info->shmid, 0, 0);
1088     if(! p_shm_info->shmaddr )
1089     {                                                               /* error */
1090         intf_ErrMsg( "vout error: cannot attach shared memory (%s)",
1091                     strerror(errno));
1092         shmctl( p_shm_info->shmid, IPC_RMID, 0 );      /* free shared memory */
1093         XDestroyImage( *pp_ximage );
1094         return( 1 );
1095     }
1096
1097     /* Mark the shm segment to be removed when there will be no more
1098      * attachements, so it is automatic on process exit or after shmdt */
1099     shmctl( p_shm_info->shmid, IPC_RMID, 0 );
1100
1101     /* Attach shared memory segment to X server (read only) */
1102     p_shm_info->readOnly = True;
1103     if( XShmAttach( p_vout->p_sys->p_display, p_shm_info )
1104          == False )                                                 /* error */
1105     {
1106         intf_ErrMsg( "vout error: cannot attach shared memory to X11 server" );
1107         shmdt( p_shm_info->shmaddr );   /* detach shared memory from process
1108                                          * and automatic free */
1109         XDestroyImage( *pp_ximage );
1110         return( 1 );
1111     }
1112
1113     /* Send image to X server. This instruction is required, since having
1114      * built a Shm XImage and not using it causes an error on XCloseDisplay */
1115     XFlush( p_vout->p_sys->p_display );
1116     return( 0 );
1117 }
1118
1119 /*****************************************************************************
1120  * X11DestroyImage: destroy an XImage
1121  *****************************************************************************
1122  * Destroy XImage AND associated data. If pointer is NULL, the image won't be
1123  * destroyed (see vout_ManageOutputMethod())
1124  *****************************************************************************/
1125 static void X11DestroyImage( XImage *p_ximage )
1126 {
1127     if( p_ximage != NULL )
1128     {
1129         XDestroyImage( p_ximage );                     /* no free() required */
1130     }
1131 }
1132
1133 /*****************************************************************************
1134  * X11DestroyShmImage
1135  *****************************************************************************
1136  * Destroy XImage AND associated data. Detach shared memory segment from
1137  * server and process, then free it. If pointer is NULL, the image won't be
1138  * destroyed (see vout_ManageOutputMethod())
1139  *****************************************************************************/
1140 static void X11DestroyShmImage( vout_thread_t *p_vout, XImage *p_ximage,
1141                                 XShmSegmentInfo *p_shm_info )
1142 {
1143     /* If pointer is NULL, do nothing */
1144     if( p_ximage == NULL )
1145     {
1146         return;
1147     }
1148
1149     XShmDetach( p_vout->p_sys->p_display, p_shm_info );/* detach from server */
1150     XDestroyImage( p_ximage );
1151
1152     if( shmdt( p_shm_info->shmaddr ) )  /* detach shared memory from process */
1153     {                                   /* also automatic freeing...         */
1154         intf_ErrMsg( "vout error: cannot detach shared memory (%s)",
1155                      strerror(errno) );
1156     }
1157 }
1158
1159
1160 /* WAZAAAAAAAAAAA */
1161
1162 /*****************************************************************************
1163  * X11EnableScreenSaver: enable screen saver
1164  *****************************************************************************
1165  * This function enable the screen saver on a display after it had been
1166  * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
1167  * know wether the screen saver can be activated or not: if n successive calls
1168  * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
1169  * will be required before the screen saver could effectively be activated.
1170  *****************************************************************************/
1171 void X11EnableScreenSaver( vout_thread_t *p_vout )
1172 {
1173     intf_DbgMsg( "vout: enabling screen saver" );
1174     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1175                      p_vout->p_sys->i_ss_interval,
1176                      p_vout->p_sys->i_ss_blanking,
1177                      p_vout->p_sys->i_ss_exposure );
1178 }
1179
1180 /*****************************************************************************
1181  * X11DisableScreenSaver: disable screen saver
1182  *****************************************************************************
1183  * See XEnableScreenSaver
1184  *****************************************************************************/
1185 void X11DisableScreenSaver( vout_thread_t *p_vout )
1186 {
1187     /* Save screen saver informations */
1188     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1189                      &p_vout->p_sys->i_ss_interval,
1190                      &p_vout->p_sys->i_ss_blanking,
1191                      &p_vout->p_sys->i_ss_exposure );
1192
1193     /* Disable screen saver */
1194     intf_DbgMsg( "vout: disabling screen saver" );
1195     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1196                      p_vout->p_sys->i_ss_interval,
1197                      p_vout->p_sys->i_ss_blanking,
1198                      p_vout->p_sys->i_ss_exposure );
1199 }
1200
1201 /*****************************************************************************
1202  * X11TogglePointer: hide or show the mouse pointer
1203  *****************************************************************************
1204  * This function hides the X pointer if it is visible by putting it at
1205  * coordinates (32,32) and setting the pointer sprite to a blank one. To
1206  * show it again, we disable the sprite and restore the original coordinates.
1207  *****************************************************************************/
1208 void X11TogglePointer( vout_thread_t *p_vout )
1209 {
1210     static Cursor cursor;
1211     static boolean_t b_cursor = 0;
1212
1213     if( p_vout->p_sys->b_mouse )
1214     {
1215         p_vout->p_sys->b_mouse = 0;
1216
1217         if( !b_cursor )
1218         {
1219             XColor color;
1220             Pixmap blank = XCreatePixmap( p_vout->p_sys->p_display,
1221                                DefaultRootWindow(p_vout->p_sys->p_display),
1222                                1, 1, 1 );
1223
1224             XParseColor( p_vout->p_sys->p_display,
1225                          XCreateColormap( p_vout->p_sys->p_display,
1226                                           DefaultRootWindow(
1227                                                   p_vout->p_sys->p_display ),
1228                                           DefaultVisual(
1229                                                   p_vout->p_sys->p_display,
1230                                                   p_vout->p_sys->i_screen ),
1231                                           AllocNone ),
1232                          "black", &color );
1233
1234             cursor = XCreatePixmapCursor( p_vout->p_sys->p_display,
1235                            blank, blank, &color, &color, 1, 1 );
1236
1237             b_cursor = 1;
1238         }
1239         XDefineCursor( p_vout->p_sys->p_display,
1240                        p_vout->p_sys->window, cursor );
1241     }
1242     else
1243     {
1244         p_vout->p_sys->b_mouse = 1;
1245
1246         XUndefineCursor( p_vout->p_sys->p_display, p_vout->p_sys->window );
1247     }
1248 }
1249