a5a4df766dbe54bf1ed96ac7bf17f8c646b94892
[vlc.git] / modules / video_output / x11 / xcommon.c
1 /*****************************************************************************
2  * xcommon.c: Functions common to the X11 and XVideo plugins
3  *****************************************************************************
4  * Copyright (C) 1998-2001 VideoLAN
5  * $Id: xcommon.c,v 1.15 2003/05/05 16:09:38 gbazin Exp $
6  *
7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
8  *          Samuel Hocevar <sam@zoy.org>
9  *          David Kennedy <dkennedy@tinytoad.com>
10  *          Gildas Bazin <gbazin@netcourrier.com>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
25  *****************************************************************************/
26
27 /*****************************************************************************
28  * Preamble
29  *****************************************************************************/
30 #include <errno.h>                                                 /* ENOMEM */
31 #include <stdlib.h>                                                /* free() */
32 #include <string.h>                                            /* strerror() */
33
34 #include <vlc/vlc.h>
35 #include <vlc/intf.h>
36 #include <vlc/vout.h>
37
38 #ifdef HAVE_MACHINE_PARAM_H
39     /* BSD */
40 #   include <machine/param.h>
41 #   include <sys/types.h>                                  /* typedef ushort */
42 #   include <sys/ipc.h>
43 #endif
44
45 #ifndef WIN32
46 #   include <netinet/in.h>                            /* BSD: struct in_addr */
47 #endif
48
49 #ifdef HAVE_SYS_SHM_H
50 #   include <sys/shm.h>                                /* shmget(), shmctl() */
51 #endif
52
53 #include <X11/Xlib.h>
54 #include <X11/Xmd.h>
55 #include <X11/Xutil.h>
56 #include <X11/keysym.h>
57 #ifdef HAVE_SYS_SHM_H
58 #   include <X11/extensions/XShm.h>
59 #endif
60 #ifdef DPMSINFO_IN_DPMS_H
61 #   include <X11/extensions/dpms.h>
62 #endif
63
64 #ifdef MODULE_NAME_IS_xvideo
65 #   include <X11/extensions/Xv.h>
66 #   include <X11/extensions/Xvlib.h>
67 #endif
68
69 #include "xcommon.h"
70
71 /*****************************************************************************
72  * Local prototypes
73  *****************************************************************************/
74 int  E_(Activate)   ( vlc_object_t * );
75 void E_(Deactivate) ( vlc_object_t * );
76
77 static int  InitVideo      ( vout_thread_t * );
78 static void EndVideo       ( vout_thread_t * );
79 static void DisplayVideo   ( vout_thread_t *, picture_t * );
80 static int  ManageVideo    ( vout_thread_t * );
81
82 static int  InitDisplay    ( vout_thread_t * );
83
84 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
85 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
86
87 static int  NewPicture     ( vout_thread_t *, picture_t * );
88 static void FreePicture    ( vout_thread_t *, picture_t * );
89
90 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
91                                     Display *, EXTRA_ARGS, int, int );
92 #ifdef HAVE_SYS_SHM_H
93 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
94                                     Display *, EXTRA_ARGS_SHM, int, int );
95 #endif
96
97 static void ToggleFullScreen      ( vout_thread_t * );
98
99 static void EnableXScreenSaver    ( vout_thread_t * );
100 static void DisableXScreenSaver   ( vout_thread_t * );
101
102 static void CreateCursor   ( vout_thread_t * );
103 static void DestroyCursor  ( vout_thread_t * );
104 static void ToggleCursor   ( vout_thread_t * );
105
106 #ifdef MODULE_NAME_IS_xvideo
107 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
108 static void XVideoReleasePort( vout_thread_t *, int );
109 #endif
110
111 #ifdef MODULE_NAME_IS_x11
112 static void SetPalette     ( vout_thread_t *,
113                              uint16_t *, uint16_t *, uint16_t * );
114 #endif
115
116 /*****************************************************************************
117  * Activate: allocate X11 video thread output method
118  *****************************************************************************
119  * This function allocate and initialize a X11 vout method. It uses some of the
120  * vout properties to choose the window size, and change them according to the
121  * actual properties of the display.
122  *****************************************************************************/
123 int E_(Activate) ( vlc_object_t *p_this )
124 {
125     vout_thread_t *p_vout = (vout_thread_t *)p_this;
126     char *       psz_display;
127 #ifdef MODULE_NAME_IS_xvideo
128     char *       psz_chroma;
129     vlc_fourcc_t i_chroma = 0;
130     vlc_bool_t   b_chroma = 0;
131 #endif
132
133     p_vout->pf_init = InitVideo;
134     p_vout->pf_end = EndVideo;
135     p_vout->pf_manage = ManageVideo;
136     p_vout->pf_render = NULL;
137     p_vout->pf_display = DisplayVideo;
138
139     /* Allocate structure */
140     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
141     if( p_vout->p_sys == NULL )
142     {
143         msg_Err( p_vout, "out of memory" );
144         return VLC_ENOMEM;
145     }
146
147     /* Open display, using the "display" config variable or the DISPLAY
148      * environment variable */
149     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
150
151     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
152
153     if( p_vout->p_sys->p_display == NULL )                          /* error */
154     {
155         msg_Err( p_vout, "cannot open display %s",
156                          XDisplayName( psz_display ) );
157         free( p_vout->p_sys );
158         if( psz_display ) free( psz_display );
159         return VLC_EGENERIC;
160     }
161     if( psz_display ) free( psz_display );
162
163     /* Get a screen ID matching the XOpenDisplay return value */
164     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
165
166 #ifdef MODULE_NAME_IS_xvideo
167     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
168     if( psz_chroma )
169     {
170         if( strlen( psz_chroma ) >= 4 )
171         {
172             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
173             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
174             i_chroma |= (unsigned char)psz_chroma[2] << 16;
175             i_chroma |= (unsigned char)psz_chroma[3] << 24;
176
177             b_chroma = 1;
178         }
179
180         free( psz_chroma );
181     }
182
183     if( b_chroma )
184     {
185         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
186                  i_chroma, (char*)&i_chroma );
187     }
188     else
189     {
190         i_chroma = p_vout->render.i_chroma;
191     }
192
193     /* Check that we have access to an XVideo port providing this chroma */
194     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
195                                              &p_vout->output.i_chroma );
196     if( p_vout->p_sys->i_xvport < 0 )
197     {
198         /* If a specific chroma format was requested, then we don't try to
199          * be cleverer than the user. He knew pretty well what he wanted. */
200         if( b_chroma )
201         {
202             XCloseDisplay( p_vout->p_sys->p_display );
203             free( p_vout->p_sys );
204             return VLC_EGENERIC;
205         }
206
207         /* It failed, but it's not completely lost ! We try to open an
208          * XVideo port for an YUY2 picture. We'll need to do an YUV
209          * conversion, but at least it has got scaling. */
210         p_vout->p_sys->i_xvport =
211                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
212                                                &p_vout->output.i_chroma );
213         if( p_vout->p_sys->i_xvport < 0 )
214         {
215             /* It failed, but it's not completely lost ! We try to open an
216              * XVideo port for a simple 16bpp RGB picture. We'll need to do
217              * an YUV conversion, but at least it has got scaling. */
218             p_vout->p_sys->i_xvport =
219                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
220                                                    &p_vout->output.i_chroma );
221             if( p_vout->p_sys->i_xvport < 0 )
222             {
223                 XCloseDisplay( p_vout->p_sys->p_display );
224                 free( p_vout->p_sys );
225                 return VLC_EGENERIC;
226             }
227         }
228     }
229 #endif
230
231     /* Create blank cursor (for mouse cursor autohiding) */
232     p_vout->p_sys->i_time_mouse_last_moved = mdate();
233     p_vout->p_sys->b_mouse_pointer_visible = 1;
234     CreateCursor( p_vout );
235
236     /* Set main window's size */
237     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
238     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
239
240     /* Spawn base window - this window will include the video output window,
241      * but also command buttons, subtitles and other indicators */
242     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
243     {
244         msg_Err( p_vout, "cannot create X11 window" );
245         DestroyCursor( p_vout );
246         XCloseDisplay( p_vout->p_sys->p_display );
247         free( p_vout->p_sys );
248         return VLC_EGENERIC;
249     }
250
251     /* Open and initialize device. */
252     if( InitDisplay( p_vout ) )
253     {
254         msg_Err( p_vout, "cannot initialize X11 display" );
255         DestroyCursor( p_vout );
256         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
257         XCloseDisplay( p_vout->p_sys->p_display );
258         free( p_vout->p_sys );
259         return VLC_EGENERIC;
260     }
261
262     /* Disable screen saver */
263     DisableXScreenSaver( p_vout );
264
265     /* Misc init */
266     p_vout->p_sys->b_altfullscreen = 0;
267     p_vout->p_sys->i_time_button_last_pressed = 0;
268
269     return VLC_SUCCESS;
270 }
271
272 /*****************************************************************************
273  * Deactivate: destroy X11 video thread output method
274  *****************************************************************************
275  * Terminate an output method created by Open
276  *****************************************************************************/
277 void E_(Deactivate) ( vlc_object_t *p_this )
278 {
279     vout_thread_t *p_vout = (vout_thread_t *)p_this;
280
281     /* If the fullscreen window is still open, close it */
282     if( p_vout->b_fullscreen )
283     {
284         ToggleFullScreen( p_vout );
285     }
286
287     /* Restore cursor if it was blanked */
288     if( !p_vout->p_sys->b_mouse_pointer_visible )
289     {
290         ToggleCursor( p_vout );
291     }
292
293 #ifdef MODULE_NAME_IS_x11
294     /* Destroy colormap */
295     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
296     {
297         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
298     }
299 #else
300     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
301 #endif
302
303     DestroyCursor( p_vout );
304     EnableXScreenSaver( p_vout );
305     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
306
307     XCloseDisplay( p_vout->p_sys->p_display );
308
309     /* Destroy structure */
310     free( p_vout->p_sys );
311 }
312
313 /*****************************************************************************
314  * InitVideo: 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 InitVideo( 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     switch( p_vout->output.i_chroma )
335     {
336         case VLC_FOURCC('R','V','1','5'):
337             p_vout->output.i_rmask = 0x001f;
338             p_vout->output.i_gmask = 0x07e0;
339             p_vout->output.i_bmask = 0xf800;
340             break;
341         case VLC_FOURCC('R','V','1','6'):
342             p_vout->output.i_rmask = 0x001f;
343             p_vout->output.i_gmask = 0x03e0;
344             p_vout->output.i_bmask = 0x7c00;
345             break;
346     }
347
348 #else
349     /* Initialize the output structure: RGB with square pixels, whatever
350      * the input format is, since it's the only format we know */
351     switch( p_vout->p_sys->i_screen_depth )
352     {
353         case 8: /* FIXME: set the palette */
354             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
355         case 15:
356             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
357         case 16:
358             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
359         case 24:
360             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
361         case 32:
362             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
363         default:
364             msg_Err( p_vout, "unknown screen depth %i",
365                      p_vout->p_sys->i_screen_depth );
366             return VLC_SUCCESS;
367     }
368
369     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
370                        p_vout->p_sys->p_win->i_height,
371                        &i_index, &i_index,
372                        &p_vout->output.i_width, &p_vout->output.i_height );
373
374     /* Assume we have square pixels */
375     p_vout->output.i_aspect = p_vout->output.i_width
376                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
377 #endif
378
379     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
380     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
381     {
382         p_pic = NULL;
383
384         /* Find an empty picture slot */
385         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
386         {
387           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
388             {
389                 p_pic = p_vout->p_picture + i_index;
390                 break;
391             }
392         }
393
394         /* Allocate the picture */
395         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
396         {
397             break;
398         }
399
400         p_pic->i_status = DESTROYED_PICTURE;
401         p_pic->i_type   = DIRECT_PICTURE;
402
403         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
404
405         I_OUTPUTPICTURES++;
406     }
407
408     return VLC_SUCCESS;
409 }
410
411  /*****************************************************************************
412  * DisplayVideo: displays previously rendered output
413  *****************************************************************************
414  * This function sends the currently rendered image to X11 server.
415  * (The Xv extension takes care of "double-buffering".)
416  *****************************************************************************/
417 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
418 {
419     int i_width, i_height, i_x, i_y;
420
421     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
422                        p_vout->p_sys->p_win->i_height,
423                        &i_x, &i_y, &i_width, &i_height );
424
425 #ifdef HAVE_SYS_SHM_H
426     if( p_vout->p_sys->b_shm )
427     {
428         /* Display rendered image using shared memory extension */
429 #   ifdef MODULE_NAME_IS_xvideo
430         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
431                        p_vout->p_sys->p_win->video_window,
432                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
433                        0 /*src_x*/, 0 /*src_y*/,
434                        p_vout->output.i_width, p_vout->output.i_height,
435                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
436                        False /* Don't put True here or you'll waste your CPU */ );
437 #   else
438         XShmPutImage( p_vout->p_sys->p_display,
439                       p_vout->p_sys->p_win->video_window,
440                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
441                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
442                       p_vout->output.i_width, p_vout->output.i_height,
443                       False /* Don't put True here ! */ );
444 #   endif
445     }
446     else
447 #endif /* HAVE_SYS_SHM_H */
448     {
449         /* Use standard XPutImage -- this is gonna be slow ! */
450 #ifdef MODULE_NAME_IS_xvideo
451         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
452                     p_vout->p_sys->p_win->video_window,
453                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
454                     0 /*src_x*/, 0 /*src_y*/,
455                     p_vout->output.i_width, p_vout->output.i_height,
456                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
457 #else
458         XPutImage( p_vout->p_sys->p_display,
459                    p_vout->p_sys->p_win->video_window,
460                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
461                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
462                    p_vout->output.i_width, p_vout->output.i_height );
463 #endif
464     }
465
466     /* Make sure the command is sent now - do NOT use XFlush !*/
467     XSync( p_vout->p_sys->p_display, False );
468 }
469
470 /*****************************************************************************
471  * ManageVideo: handle X11 events
472  *****************************************************************************
473  * This function should be called regularly by video output thread. It manages
474  * X11 events and allows window resizing. It returns a non null value on
475  * error.
476  *****************************************************************************/
477 static int ManageVideo( vout_thread_t *p_vout )
478 {
479     XEvent      xevent;                                         /* X11 event */
480     char        i_key;                                    /* ISO Latin-1 key */
481     KeySym      x_key_symbol;
482     vlc_value_t val;
483
484     /* Handle X11 events: ConfigureNotify events are parsed to know if the
485      * output window's size changed, MapNotify and UnmapNotify to know if the
486      * window is mapped (and if the display is useful), and ClientMessages
487      * to intercept window destruction requests */
488
489     while( XCheckWindowEvent( p_vout->p_sys->p_display,
490                               p_vout->p_sys->p_win->base_window,
491                               StructureNotifyMask | KeyPressMask |
492                               ButtonPressMask | ButtonReleaseMask |
493                               PointerMotionMask | Button1MotionMask , &xevent )
494            == True )
495     {
496         /* ConfigureNotify event: prepare  */
497         if( xevent.type == ConfigureNotify )
498         {
499             if( (unsigned int)xevent.xconfigure.width
500                    != p_vout->p_sys->p_win->i_width
501               || (unsigned int)xevent.xconfigure.height
502                     != p_vout->p_sys->p_win->i_height )
503             {
504                 /* Update dimensions */
505                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
506                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
507                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
508             }
509         }
510         /* Keyboard event */
511         else if( xevent.type == KeyPress )
512         {
513             /* We may have keys like F1 trough F12, ESC ... */
514             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
515                                              xevent.xkey.keycode, 0 );
516             switch( (int)x_key_symbol )
517             {
518             case XK_Escape:
519                 if( p_vout->b_fullscreen )
520                 {
521                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
522                 }
523                 else
524                 {
525                     p_vout->p_vlc->b_die = 1;
526                 }
527                 break;
528             case XK_Menu:
529                 {
530                     intf_thread_t *p_intf;
531                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
532                                                       FIND_ANYWHERE );
533                     if( p_intf )
534                     {
535                         p_intf->b_menu_change = 1;
536                         vlc_object_release( p_intf );
537                     }
538                 }
539                 break;
540             case XK_Left:
541                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
542                 break;
543             case XK_Right:
544                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
545                 break;
546             case XK_Up:
547                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
548                 break;
549             case XK_Down:
550                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
551                 break;
552             case XK_Home:
553                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
554                 break;
555             case XK_End:
556                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
557                 break;
558             case XK_Page_Up:
559                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
560                 break;
561             case XK_Page_Down:
562                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
563                 break;
564             case XK_space:
565                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
566                 break;
567
568             default:
569                 /* "Normal Keys"
570                  * The reason why I use this instead of XK_0 is that
571                  * with XLookupString, we don't have to care about
572                  * keymaps. */
573
574                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
575                 {
576                     /* FIXME: handle stuff here */
577                     switch( i_key )
578                     {
579                     case 'q':
580                     case 'Q':
581                         p_vout->p_vlc->b_die = 1;
582                         break;
583                     case 'f':
584                     case 'F':
585                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
586                         break;
587
588                     default:
589                         break;
590                     }
591                 }
592                 break;
593             }
594         }
595         /* Mouse click */
596         else if( xevent.type == ButtonPress )
597         {
598             switch( ((XButtonEvent *)&xevent)->button )
599             {
600                 case Button1:
601                     var_Get( p_vout, "mouse-button-down", &val );
602                     val.i_int |= 1;
603                     var_Set( p_vout, "mouse-button-down", val );
604                     
605                     /* detect double-clicks */
606                     if( ( ((XButtonEvent *)&xevent)->time -
607                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
608                     {
609                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
610                     }
611
612                     p_vout->p_sys->i_time_button_last_pressed =
613                         ((XButtonEvent *)&xevent)->time;
614                     break;
615                 case Button2:
616                     var_Get( p_vout, "mouse-button-down", &val );
617                     val.i_int |= 2;
618                     var_Set( p_vout, "mouse-button-down", val );
619                     break;
620                 
621                 case Button3:
622                     var_Get( p_vout, "mouse-button-down", &val );
623                     val.i_int |= 4;
624                     var_Set( p_vout, "mouse-button-down", val );
625                     break;
626                 
627                 case Button4:
628                     var_Get( p_vout, "mouse-button-down", &val );
629                     val.i_int |= 8;
630                     var_Set( p_vout, "mouse-button-down", val );
631                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
632                     break;
633
634                 case Button5:
635                     var_Get( p_vout, "mouse-button-down", &val );
636                     val.i_int |= 16;
637                     var_Set( p_vout, "mouse-button-down", val );
638                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
639                     break;
640             }
641         }
642         /* Mouse release */
643         else if( xevent.type == ButtonRelease )
644         {
645             switch( ((XButtonEvent *)&xevent)->button )
646             {
647                 case Button1:
648                     var_Get( p_vout, "mouse-button-down", &val );
649                     val.i_int &= ~1;
650                     var_Set( p_vout, "mouse-button-down", val );
651
652                     val.b_bool = VLC_TRUE;
653                     var_Set( p_vout, "mouse-clicked", val );
654                     break;
655                     
656                 case Button2:
657                     var_Get( p_vout, "mouse-button-down", &val );
658                     val.i_int &= ~2;
659                     var_Set( p_vout, "mouse-button-down", val );
660                     break;
661                     
662                 case Button3:
663                     {
664                         intf_thread_t *p_intf;
665                         var_Get( p_vout, "mouse-button-down", &val );
666                         val.i_int &= ~4;
667                         var_Set( p_vout, "mouse-button-down", val );
668                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
669                                                           FIND_ANYWHERE );
670                         if( p_intf )
671                         {
672                             p_intf->b_menu_change = 1;
673                             vlc_object_release( p_intf );
674                         }
675                     }
676                     break;
677
678                 case Button4:
679                     var_Get( p_vout, "mouse-button-down", &val );
680                     val.i_int &= ~8;
681                     var_Set( p_vout, "mouse-button-down", val );
682                     break;
683
684                 case Button5:
685                     var_Get( p_vout, "mouse-button-down", &val );
686                     val.i_int &= ~16;
687                     var_Set( p_vout, "mouse-button-down", val );
688                     break;
689                     
690             }
691         }
692         /* Mouse move */
693         else if( xevent.type == MotionNotify )
694         {
695             int i_width, i_height, i_x, i_y;
696             vlc_value_t val;
697
698             /* somewhat different use for vout_PlacePicture:
699              * here the values are needed to give to mouse coordinates
700              * in the original picture space */
701             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
702                                p_vout->p_sys->p_win->i_height,
703                                &i_x, &i_y, &i_width, &i_height );
704
705             val.i_int = ( xevent.xmotion.x - i_x )
706                          * p_vout->render.i_width / i_width;
707             var_Set( p_vout, "mouse-x", val );
708             val.i_int = ( xevent.xmotion.y - i_y )
709                          * p_vout->render.i_height / i_height;
710             var_Set( p_vout, "mouse-y", val );
711
712             val.b_bool = VLC_TRUE;
713             var_Set( p_vout, "mouse-moved", val );
714
715             p_vout->p_sys->i_time_mouse_last_moved = mdate();
716             if( ! p_vout->p_sys->b_mouse_pointer_visible )
717             {
718                 ToggleCursor( p_vout );
719             }
720         }
721         else if( xevent.type == ReparentNotify /* XXX: why do we get this? */
722                   || xevent.type == MapNotify
723                   || xevent.type == UnmapNotify )
724         {
725             /* Ignore these events */
726         }
727         else /* Other events */
728         {
729             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
730         }
731     }
732
733     /* Handle events for video output sub-window */
734     while( XCheckWindowEvent( p_vout->p_sys->p_display,
735                               p_vout->p_sys->p_win->video_window,
736                               ExposureMask, &xevent ) == True )
737     {
738         /* Window exposed (only handled if stream playback is paused) */
739         if( xevent.type == Expose )
740         {
741             if( ((XExposeEvent *)&xevent)->count == 0 )
742             {
743                 /* (if this is the last a collection of expose events...) */
744 #if 0
745                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
746                 {
747                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
748                                                    ->stream.control.i_status )
749                     {
750                         /* XVideoDisplay( p_vout )*/;
751                     }
752                 }
753 #endif
754             }
755         }
756     }
757
758     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
759      * are handled - according to the man pages, the format is always 32
760      * in this case */
761     while( XCheckTypedEvent( p_vout->p_sys->p_display,
762                              ClientMessage, &xevent ) )
763     {
764         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
765                && ((Atom)xevent.xclient.data.l[0]
766                      == p_vout->p_sys->p_win->wm_delete_window ) )
767         {
768             p_vout->p_vlc->b_die = 1;
769         }
770     }
771
772     /*
773      * Fullscreen Change
774      */
775     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
776     {
777         ToggleFullScreen( p_vout );
778         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
779     }
780
781     /*
782      * Size change
783      *
784      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
785      *  the size flag inside the fullscreen routine)
786      */
787     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
788     {
789         int i_width, i_height, i_x, i_y;
790
791         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
792
793 #ifdef MODULE_NAME_IS_x11
794         /* We need to signal the vout thread about the size change because it
795          * is doing the rescaling */
796         p_vout->i_changes |= VOUT_SIZE_CHANGE;
797 #endif
798
799         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
800                            p_vout->p_sys->p_win->i_height,
801                            &i_x, &i_y, &i_width, &i_height );
802
803         XResizeWindow( p_vout->p_sys->p_display,
804                        p_vout->p_sys->p_win->video_window, i_width, i_height );
805
806         XMoveWindow( p_vout->p_sys->p_display,
807                      p_vout->p_sys->p_win->video_window, i_x, i_y );
808     }
809
810     /* Autohide Cursour */
811     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
812     {
813         /* Hide the mouse automatically */
814         if( p_vout->p_sys->b_mouse_pointer_visible )
815         {
816             ToggleCursor( p_vout );
817         }
818     }
819
820     return 0;
821 }
822
823 /*****************************************************************************
824  * EndVideo: terminate X11 video thread output method
825  *****************************************************************************
826  * Destroy the X11 XImages created by Init. It is called at the end of
827  * the thread, but also each time the window is resized.
828  *****************************************************************************/
829 static void EndVideo( vout_thread_t *p_vout )
830 {
831     int i_index;
832
833     /* Free the direct buffers we allocated */
834     for( i_index = I_OUTPUTPICTURES ; i_index ; )
835     {
836         i_index--;
837         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
838     }
839 }
840
841 /* following functions are local */
842
843 /*****************************************************************************
844  * CreateWindow: open and set-up X11 main window
845  *****************************************************************************/
846 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
847 {
848     XSizeHints              xsize_hints;
849     XSetWindowAttributes    xwindow_attributes;
850     XGCValues               xgcvalues;
851     XEvent                  xevent;
852
853     vlc_bool_t              b_expose;
854     vlc_bool_t              b_configure_notify;
855     vlc_bool_t              b_map_notify;
856
857     vlc_value_t             val;
858     long long int           i_drawable;
859
860     /* Prepare window manager hints and properties */
861     xsize_hints.base_width          = p_win->i_width;
862     xsize_hints.base_height         = p_win->i_height;
863     xsize_hints.flags               = PSize;
864     p_win->wm_protocols =
865              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
866     p_win->wm_delete_window =
867              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
868
869     /* Prepare window attributes */
870     xwindow_attributes.backing_store = Always;       /* save the hidden part */
871     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
872                                                      p_vout->p_sys->i_screen);
873     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
874
875     /* Check whether someone provided us with a window ID */
876     var_Get( p_vout->p_vlc, "drawable", &val );
877     i_drawable = p_vout->b_fullscreen ? 0 : val.i_int;
878
879     if( !i_drawable )
880     {
881         p_win->b_owned = VLC_TRUE;
882
883         /* Create the window and set hints - the window must receive
884          * ConfigureNotify events, and until it is displayed, Expose and
885          * MapNotify events. */
886
887         p_win->base_window =
888             XCreateWindow( p_vout->p_sys->p_display,
889                            DefaultRootWindow( p_vout->p_sys->p_display ),
890                            0, 0,
891                            p_win->i_width, p_win->i_height,
892                            0,
893                            0, InputOutput, 0,
894                            CWBackingStore | CWBackPixel | CWEventMask,
895                            &xwindow_attributes );
896
897         if( !p_vout->b_fullscreen )
898         {
899             /* Set window manager hints and properties: size hints, command,
900              * window's name, and accepted protocols */
901             XSetWMNormalHints( p_vout->p_sys->p_display,
902                                p_win->base_window, &xsize_hints );
903             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
904                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
905
906             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
907 #ifdef MODULE_NAME_IS_x11
908                         VOUT_TITLE " (X11 output)"
909 #else
910                         VOUT_TITLE " (XVideo output)"
911 #endif
912                       );
913         }
914     }
915     else
916     {
917         p_win->b_owned = VLC_FALSE;
918         p_win->base_window = i_drawable;
919
920         XChangeWindowAttributes( p_vout->p_sys->p_display,
921                                  p_win->base_window,
922                                  CWBackingStore | CWBackPixel | CWEventMask,
923                                  &xwindow_attributes );
924     }
925
926     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
927         || (p_win->wm_delete_window == None)
928         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
929                              &p_win->wm_delete_window, 1 ) )
930     {
931         /* WM_DELETE_WINDOW is not supported by window manager */
932         msg_Warn( p_vout, "missing or bad window manager" );
933     }
934
935     /* Creation of a graphic context that doesn't generate a GraphicsExpose
936      * event when using functions like XCopyArea */
937     xgcvalues.graphics_exposures = False;
938     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
939                            p_win->base_window,
940                            GCGraphicsExposures, &xgcvalues );
941
942     if( p_win->b_owned )
943     {
944         /* Send orders to server, and wait until window is displayed - three
945          * events must be received: a MapNotify event, an Expose event allowing
946          * drawing in the window, and a ConfigureNotify to get the window
947          * dimensions. Once those events have been received, only
948          * ConfigureNotify events need to be received. */
949         b_expose = 0;
950         b_configure_notify = 0;
951         b_map_notify = 0;
952         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
953         do
954         {
955             XNextEvent( p_vout->p_sys->p_display, &xevent);
956             if( (xevent.type == Expose)
957                 && (xevent.xexpose.window == p_win->base_window) )
958             {
959                 b_expose = 1;
960             }
961             else if( (xevent.type == MapNotify)
962                      && (xevent.xmap.window == p_win->base_window) )
963             {
964                 b_map_notify = 1;
965             }
966             else if( (xevent.type == ConfigureNotify)
967                      && (xevent.xconfigure.window == p_win->base_window) )
968             {
969                 b_configure_notify = 1;
970                 p_win->i_width = xevent.xconfigure.width;
971                 p_win->i_height = xevent.xconfigure.height;
972             }
973         } while( !( b_expose && b_configure_notify && b_map_notify ) );
974     }
975     else
976     {
977         /* Get the window's geometry information */
978         Window dummy1;
979         unsigned int dummy2, dummy3;
980         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
981                       &dummy1, &dummy2, &dummy3,
982                       &p_win->i_width,
983                       &p_win->i_height,
984                       &dummy2, &dummy3 );
985     }
986
987     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
988                   StructureNotifyMask | KeyPressMask |
989                   ButtonPressMask | ButtonReleaseMask |
990                   PointerMotionMask );
991
992 #ifdef MODULE_NAME_IS_x11
993     if( p_win->b_owned &&
994          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
995     {
996         /* Allocate a new palette */
997         p_vout->p_sys->colormap =
998             XCreateColormap( p_vout->p_sys->p_display,
999                              DefaultRootWindow( p_vout->p_sys->p_display ),
1000                              DefaultVisual( p_vout->p_sys->p_display,
1001                                             p_vout->p_sys->i_screen ),
1002                              AllocAll );
1003
1004         xwindow_attributes.colormap = p_vout->p_sys->colormap;
1005         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
1006                                  CWColormap, &xwindow_attributes );
1007     }
1008 #endif
1009
1010     /* Create video output sub-window. */
1011     p_win->video_window =  XCreateSimpleWindow(
1012                                       p_vout->p_sys->p_display,
1013                                       p_win->base_window, 0, 0,
1014                                       p_win->i_width, p_win->i_height,
1015                                       0,
1016                                       BlackPixel( p_vout->p_sys->p_display,
1017                                                   p_vout->p_sys->i_screen ),
1018                                       WhitePixel( p_vout->p_sys->p_display,
1019                                                   p_vout->p_sys->i_screen ) );
1020
1021     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
1022                           BlackPixel( p_vout->p_sys->p_display,
1023                                       p_vout->p_sys->i_screen ) );
1024
1025     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
1026     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
1027                   ExposureMask );
1028
1029     /* make sure the video window will be centered in the next ManageVideo() */
1030     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1031
1032     /* If the cursor was formerly blank than blank it again */
1033     if( !p_vout->p_sys->b_mouse_pointer_visible )
1034     {
1035         ToggleCursor( p_vout );
1036         ToggleCursor( p_vout );
1037     }
1038
1039     /* Do NOT use XFlush here ! */
1040     XSync( p_vout->p_sys->p_display, False );
1041
1042     /* At this stage, the window is open, displayed, and ready to
1043      * receive data */
1044     p_vout->p_sys->p_win = p_win;
1045
1046     return VLC_SUCCESS;
1047 }
1048
1049 /*****************************************************************************
1050  * DestroyWindow: destroy the window
1051  *****************************************************************************
1052  *
1053  *****************************************************************************/
1054 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1055 {
1056     /* Do NOT use XFlush here ! */
1057     XSync( p_vout->p_sys->p_display, False );
1058
1059     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1060     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1061
1062     if( p_win->b_owned )
1063     {
1064         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1065         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1066     }
1067 }
1068
1069 /*****************************************************************************
1070  * NewPicture: allocate a picture
1071  *****************************************************************************
1072  * Returns 0 on success, -1 otherwise
1073  *****************************************************************************/
1074 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1075 {
1076     /* We know the chroma, allocate a buffer which will be used
1077      * directly by the decoder */
1078     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1079
1080     if( p_pic->p_sys == NULL )
1081     {
1082         return -1;
1083     }
1084
1085 #ifdef HAVE_SYS_SHM_H
1086     if( p_vout->p_sys->b_shm )
1087     {
1088         /* Create image using XShm extension */
1089         p_pic->p_sys->p_image =
1090             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1091 #   ifdef MODULE_NAME_IS_xvideo
1092                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1093 #   else
1094                             p_vout->p_sys->p_visual,
1095                             p_vout->p_sys->i_screen_depth,
1096 #   endif
1097                             &p_pic->p_sys->shminfo,
1098                             p_vout->output.i_width, p_vout->output.i_height );
1099     }
1100     else
1101 #endif /* HAVE_SYS_SHM_H */
1102     {
1103         /* Create image without XShm extension */
1104         p_pic->p_sys->p_image =
1105             CreateImage( p_vout, p_vout->p_sys->p_display,
1106 #ifdef MODULE_NAME_IS_xvideo
1107                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1108 #else
1109                          p_vout->p_sys->p_visual,
1110                          p_vout->p_sys->i_screen_depth,
1111                          p_vout->p_sys->i_bytes_per_pixel,
1112 #endif
1113                          p_vout->output.i_width, p_vout->output.i_height );
1114     }
1115
1116     if( p_pic->p_sys->p_image == NULL )
1117     {
1118         free( p_pic->p_sys );
1119         return -1;
1120     }
1121
1122     switch( p_vout->output.i_chroma )
1123     {
1124 #ifdef MODULE_NAME_IS_xvideo
1125         case VLC_FOURCC('I','4','2','0'):
1126
1127             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1128                                + p_pic->p_sys->p_image->offsets[0];
1129             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1130             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1131             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1132             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1133
1134             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1135                                + p_pic->p_sys->p_image->offsets[1];
1136             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1137             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1138             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1139             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1140
1141             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1142                                + p_pic->p_sys->p_image->offsets[2];
1143             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1144             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1145             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1146             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1147
1148             p_pic->i_planes = 3;
1149             break;
1150
1151         case VLC_FOURCC('Y','V','1','2'):
1152
1153             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1154                                + p_pic->p_sys->p_image->offsets[0];
1155             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1156             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1157             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1158             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1159             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1160
1161             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1162                                + p_pic->p_sys->p_image->offsets[2];
1163             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1164             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1165             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1166             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1167
1168             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1169                                + p_pic->p_sys->p_image->offsets[1];
1170             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1171             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1172             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1173             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1174
1175             p_pic->i_planes = 3;
1176             break;
1177
1178         case VLC_FOURCC('Y','2','1','1'):
1179
1180             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1181                                   + p_pic->p_sys->p_image->offsets[0];
1182             p_pic->p->i_lines = p_vout->output.i_height;
1183             /* XXX: this just looks so plain wrong... check it out ! */
1184             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1185             p_pic->p->i_pixel_pitch = 4;
1186             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1187
1188             p_pic->i_planes = 1;
1189             break;
1190
1191         case VLC_FOURCC('Y','U','Y','2'):
1192         case VLC_FOURCC('U','Y','V','Y'):
1193
1194             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1195                                   + p_pic->p_sys->p_image->offsets[0];
1196             p_pic->p->i_lines = p_vout->output.i_height;
1197             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1198             p_pic->p->i_pixel_pitch = 4;
1199             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1200
1201             p_pic->i_planes = 1;
1202             break;
1203
1204         case VLC_FOURCC('R','V','1','5'):
1205
1206             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1207                                   + p_pic->p_sys->p_image->offsets[0];
1208             p_pic->p->i_lines = p_vout->output.i_height;
1209             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1210             p_pic->p->i_pixel_pitch = 2;
1211             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1212
1213             p_pic->i_planes = 1;
1214             break;
1215
1216         case VLC_FOURCC('R','V','1','6'):
1217
1218             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1219                                   + p_pic->p_sys->p_image->offsets[0];
1220             p_pic->p->i_lines = p_vout->output.i_height;
1221             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1222             p_pic->p->i_pixel_pitch = 2;
1223             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1224
1225             p_pic->i_planes = 1;
1226             break;
1227
1228 #else
1229         case VLC_FOURCC('R','G','B','2'):
1230
1231             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1232                                   + p_pic->p_sys->p_image->xoffset;
1233             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1234             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1235             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1236             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1237
1238             p_pic->i_planes = 1;
1239
1240             break;
1241
1242         case VLC_FOURCC('R','V','1','6'):
1243         case VLC_FOURCC('R','V','1','5'):
1244
1245             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1246                                   + p_pic->p_sys->p_image->xoffset;
1247             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1248             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1249             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1250             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1251
1252             p_pic->i_planes = 1;
1253
1254             break;
1255
1256         case VLC_FOURCC('R','V','3','2'):
1257         case VLC_FOURCC('R','V','2','4'):
1258
1259             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1260                                   + p_pic->p_sys->p_image->xoffset;
1261             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1262             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1263             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1264             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1265
1266             p_pic->i_planes = 1;
1267
1268             break;
1269 #endif
1270
1271         default:
1272             /* Unknown chroma, tell the guy to get lost */
1273             IMAGE_FREE( p_pic->p_sys->p_image );
1274             free( p_pic->p_sys );
1275             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1276                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1277             p_pic->i_planes = 0;
1278             return -1;
1279     }
1280
1281     return 0;
1282 }
1283
1284 /*****************************************************************************
1285  * FreePicture: destroy a picture allocated with NewPicture
1286  *****************************************************************************
1287  * Destroy XImage AND associated data. If using Shm, detach shared memory
1288  * segment from server and process, then free it. The XDestroyImage manpage
1289  * says that both the image structure _and_ the data pointed to by the
1290  * image structure are freed, so no need to free p_image->data.
1291  *****************************************************************************/
1292 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1293 {
1294     /* The order of operations is correct */
1295 #ifdef HAVE_SYS_SHM_H
1296     if( p_vout->p_sys->b_shm )
1297     {
1298         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1299         IMAGE_FREE( p_pic->p_sys->p_image );
1300
1301         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1302         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1303         {
1304             msg_Err( p_vout, "cannot detach shared memory (%s)",
1305                              strerror(errno) );
1306         }
1307     }
1308     else
1309 #endif
1310     {
1311         IMAGE_FREE( p_pic->p_sys->p_image );
1312     }
1313
1314     /* Do NOT use XFlush here ! */
1315     XSync( p_vout->p_sys->p_display, False );
1316
1317     free( p_pic->p_sys );
1318 }
1319
1320 /*****************************************************************************
1321  * ToggleFullScreen: Enable or disable full screen mode
1322  *****************************************************************************
1323  * This function will switch between fullscreen and window mode.
1324  *****************************************************************************/
1325 static void ToggleFullScreen ( vout_thread_t *p_vout )
1326 {
1327     Atom prop;
1328     XEvent xevent;
1329     mwmhints_t mwmhints;
1330     XSetWindowAttributes attributes;
1331
1332     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1333
1334     if( p_vout->b_fullscreen )
1335     {
1336         msg_Dbg( p_vout, "entering fullscreen mode" );
1337
1338         p_vout->p_sys->b_altfullscreen =
1339             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1340
1341         if( p_vout->p_sys->p_win->b_owned )
1342         {
1343             XUnmapWindow( p_vout->p_sys->p_display,
1344                           p_vout->p_sys->p_win->base_window);
1345         }
1346
1347         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1348
1349         /* fullscreen window size and position */
1350         p_vout->p_sys->p_win->i_width =
1351             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1352         p_vout->p_sys->p_win->i_height =
1353             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1354
1355         CreateWindow( p_vout, p_vout->p_sys->p_win );
1356
1357         /* To my knowledge there are two ways to create a borderless window.
1358          * There's the generic way which is to tell x to bypass the window
1359          * manager, but this creates problems with the focus of other
1360          * applications.
1361          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1362          * luckily seems to be supported by most window managers. */
1363         if( !p_vout->p_sys->b_altfullscreen )
1364         {
1365             mwmhints.flags = MWM_HINTS_DECORATIONS;
1366             mwmhints.decorations = False;
1367
1368             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1369                                 False );
1370             XChangeProperty( p_vout->p_sys->p_display,
1371                              p_vout->p_sys->p_win->base_window,
1372                              prop, prop, 32, PropModeReplace,
1373                              (unsigned char *)&mwmhints,
1374                              PROP_MWM_HINTS_ELEMENTS );
1375         }
1376         else
1377         {
1378             /* brute force way to remove decorations */
1379             attributes.override_redirect = True;
1380             XChangeWindowAttributes( p_vout->p_sys->p_display,
1381                                      p_vout->p_sys->p_win->base_window,
1382                                      CWOverrideRedirect,
1383                                      &attributes);
1384         }
1385
1386         /* Make sure the change is effective */
1387         XReparentWindow( p_vout->p_sys->p_display,
1388                          p_vout->p_sys->p_win->base_window,
1389                          DefaultRootWindow( p_vout->p_sys->p_display ),
1390                          0, 0 );
1391
1392         /* fullscreen window size and position */
1393         p_vout->p_sys->p_win->i_width =
1394             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1395         p_vout->p_sys->p_win->i_height =
1396             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1397
1398         XMoveResizeWindow( p_vout->p_sys->p_display,
1399                            p_vout->p_sys->p_win->base_window,
1400                            0, 0,
1401                            p_vout->p_sys->p_win->i_width,
1402                            p_vout->p_sys->p_win->i_height );
1403     }
1404     else
1405     {
1406         msg_Dbg( p_vout, "leaving fullscreen mode" );
1407         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1408         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1409
1410         if( p_vout->p_sys->p_win->b_owned )
1411         {
1412             XMapWindow( p_vout->p_sys->p_display,
1413                         p_vout->p_sys->p_win->base_window);
1414         }
1415     }
1416
1417     /* Unfortunately, using XSync() here is not enough to ensure the
1418      * window has already been mapped because the XMapWindow() request
1419      * has not necessarily been sent directly to our window (remember,
1420      * the call is first redirected to the window manager) */
1421     if( p_vout->p_sys->p_win->b_owned )
1422     {
1423         do
1424         {
1425             XWindowEvent( p_vout->p_sys->p_display,
1426                           p_vout->p_sys->p_win->base_window,
1427                           StructureNotifyMask, &xevent );
1428         } while( xevent.type != MapNotify );
1429     }
1430     else
1431     {
1432         XSync( p_vout->p_sys->p_display, False );
1433     }
1434
1435     /* Becareful, this can generate a BadMatch error if the window is not
1436      * already mapped by the server (see above) */
1437     XSetInputFocus(p_vout->p_sys->p_display,
1438                    p_vout->p_sys->p_win->base_window,
1439                    RevertToParent,
1440                    CurrentTime);
1441
1442     /* signal that the size needs to be updated */
1443     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1444 }
1445
1446 /*****************************************************************************
1447  * EnableXScreenSaver: enable screen saver
1448  *****************************************************************************
1449  * This function enables the screen saver on a display after it has been
1450  * disabled by XDisableScreenSaver.
1451  * FIXME: what happens if multiple vlc sessions are running at the same
1452  *        time ???
1453  *****************************************************************************/
1454 static void EnableXScreenSaver( vout_thread_t *p_vout )
1455 {
1456 #ifdef DPMSINFO_IN_DPMS_H
1457     int dummy;
1458 #endif
1459
1460     if( p_vout->p_sys->i_ss_timeout )
1461     {
1462         XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1463                          p_vout->p_sys->i_ss_interval,
1464                          p_vout->p_sys->i_ss_blanking,
1465                          p_vout->p_sys->i_ss_exposure );
1466     }
1467
1468     /* Restore DPMS settings */
1469 #ifdef DPMSINFO_IN_DPMS_H
1470     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1471     {
1472         if( p_vout->p_sys->b_ss_dpms )
1473         {
1474             DPMSEnable( p_vout->p_sys->p_display );
1475         }
1476     }
1477 #endif
1478 }
1479
1480 /*****************************************************************************
1481  * DisableXScreenSaver: disable screen saver
1482  *****************************************************************************
1483  * See XEnableXScreenSaver
1484  *****************************************************************************/
1485 static void DisableXScreenSaver( vout_thread_t *p_vout )
1486 {
1487 #ifdef DPMSINFO_IN_DPMS_H
1488     int dummy;
1489 #endif
1490
1491     /* Save screen saver informations */
1492     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1493                      &p_vout->p_sys->i_ss_interval,
1494                      &p_vout->p_sys->i_ss_blanking,
1495                      &p_vout->p_sys->i_ss_exposure );
1496
1497     /* Disable screen saver */
1498     if( p_vout->p_sys->i_ss_timeout )
1499     {
1500         XSetScreenSaver( p_vout->p_sys->p_display, 0,
1501                          p_vout->p_sys->i_ss_interval,
1502                          p_vout->p_sys->i_ss_blanking,
1503                          p_vout->p_sys->i_ss_exposure );
1504     }
1505
1506     /* Disable DPMS */
1507 #ifdef DPMSINFO_IN_DPMS_H
1508     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1509     {
1510         CARD16 unused;
1511         /* Save DPMS current state */
1512         DPMSInfo( p_vout->p_sys->p_display, &unused,
1513                   &p_vout->p_sys->b_ss_dpms );
1514         DPMSDisable( p_vout->p_sys->p_display );
1515    }
1516 #endif
1517 }
1518
1519 /*****************************************************************************
1520  * CreateCursor: create a blank mouse pointer
1521  *****************************************************************************/
1522 static void CreateCursor( vout_thread_t *p_vout )
1523 {
1524     XColor cursor_color;
1525
1526     p_vout->p_sys->cursor_pixmap =
1527         XCreatePixmap( p_vout->p_sys->p_display,
1528                        DefaultRootWindow( p_vout->p_sys->p_display ),
1529                        1, 1, 1 );
1530
1531     XParseColor( p_vout->p_sys->p_display,
1532                  XCreateColormap( p_vout->p_sys->p_display,
1533                                   DefaultRootWindow(
1534                                                     p_vout->p_sys->p_display ),
1535                                   DefaultVisual(
1536                                                 p_vout->p_sys->p_display,
1537                                                 p_vout->p_sys->i_screen ),
1538                                   AllocNone ),
1539                  "black", &cursor_color );
1540
1541     p_vout->p_sys->blank_cursor =
1542         XCreatePixmapCursor( p_vout->p_sys->p_display,
1543                              p_vout->p_sys->cursor_pixmap,
1544                              p_vout->p_sys->cursor_pixmap,
1545                              &cursor_color, &cursor_color, 1, 1 );
1546 }
1547
1548 /*****************************************************************************
1549  * DestroyCursor: destroy the blank mouse pointer
1550  *****************************************************************************/
1551 static void DestroyCursor( vout_thread_t *p_vout )
1552 {
1553     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1554 }
1555
1556 /*****************************************************************************
1557  * ToggleCursor: hide or show the mouse pointer
1558  *****************************************************************************
1559  * This function hides the X pointer if it is visible by setting the pointer
1560  * sprite to a blank one. To show it again, we disable the sprite.
1561  *****************************************************************************/
1562 static void ToggleCursor( vout_thread_t *p_vout )
1563 {
1564     if( p_vout->p_sys->b_mouse_pointer_visible )
1565     {
1566         XDefineCursor( p_vout->p_sys->p_display,
1567                        p_vout->p_sys->p_win->base_window,
1568                        p_vout->p_sys->blank_cursor );
1569         p_vout->p_sys->b_mouse_pointer_visible = 0;
1570     }
1571     else
1572     {
1573         XUndefineCursor( p_vout->p_sys->p_display,
1574                          p_vout->p_sys->p_win->base_window );
1575         p_vout->p_sys->b_mouse_pointer_visible = 1;
1576     }
1577 }
1578
1579 #ifdef MODULE_NAME_IS_xvideo
1580 /*****************************************************************************
1581  * XVideoGetPort: get YUV12 port
1582  *****************************************************************************/
1583 static int XVideoGetPort( vout_thread_t *p_vout,
1584                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1585 {
1586     XvAdaptorInfo *p_adaptor;
1587     unsigned int i;
1588     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1589     int i_selected_port;
1590
1591     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1592     {
1593         case Success:
1594             break;
1595
1596         case XvBadExtension:
1597             msg_Warn( p_vout, "XvBadExtension" );
1598             return -1;
1599
1600         case XvBadAlloc:
1601             msg_Warn( p_vout, "XvBadAlloc" );
1602             return -1;
1603
1604         default:
1605             msg_Warn( p_vout, "XvQueryExtension failed" );
1606             return -1;
1607     }
1608
1609     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1610                              DefaultRootWindow( p_vout->p_sys->p_display ),
1611                              &i_num_adaptors, &p_adaptor ) )
1612     {
1613         case Success:
1614             break;
1615
1616         case XvBadExtension:
1617             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1618             return -1;
1619
1620         case XvBadAlloc:
1621             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1622             return -1;
1623
1624         default:
1625             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1626             return -1;
1627     }
1628
1629     i_selected_port = -1;
1630     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1631
1632     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1633     {
1634         XvImageFormatValues *p_formats;
1635         int i_format, i_num_formats;
1636         int i_port;
1637
1638         /* If we requested an adaptor and it's not this one, we aren't
1639          * interested */
1640         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1641         {
1642             continue;
1643         }
1644
1645         /* If the adaptor doesn't have the required properties, skip it */
1646         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1647             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1648         {
1649             continue;
1650         }
1651
1652         /* Check that adaptor supports our requested format... */
1653         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1654                                         p_adaptor[i_adaptor].base_id,
1655                                         &i_num_formats );
1656
1657         for( i_format = 0;
1658              i_format < i_num_formats && ( i_selected_port == -1 );
1659              i_format++ )
1660         {
1661             /* Code removed, we can get this through xvinfo anyway */
1662 #if 0
1663             XvEncodingInfo  *p_enc;
1664             int             i_enc, i_num_encodings;
1665             XvAttribute     *p_attr;
1666             int             i_attr, i_num_attributes;
1667 #endif
1668
1669             /* If this is not the format we want, or at least a
1670              * similar one, forget it */
1671             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1672             {
1673                 continue;
1674             }
1675
1676             /* Look for the first available port supporting this format */
1677             for( i_port = p_adaptor[i_adaptor].base_id;
1678                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1679                                    + p_adaptor[i_adaptor].num_ports) )
1680                    && ( i_selected_port == -1 );
1681                  i_port++ )
1682             {
1683                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1684                      == Success )
1685                 {
1686                     i_selected_port = i_port;
1687                     *pi_newchroma = p_formats[ i_format ].id;
1688                 }
1689             }
1690
1691             /* If no free port was found, forget it */
1692             if( i_selected_port == -1 )
1693             {
1694                 continue;
1695             }
1696
1697             /* If we found a port, print information about it */
1698             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1699                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1700                      (char *)&p_formats[ i_format ].id,
1701                      ( p_formats[ i_format ].format == XvPacked ) ?
1702                          "packed" : "planar" );
1703
1704 #if 0
1705             msg_Dbg( p_vout, " encoding list:" );
1706
1707             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1708                                   &i_num_encodings, &p_enc )
1709                  != Success )
1710             {
1711                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1712                 continue;
1713             }
1714
1715             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1716             {
1717                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1718                                       " numerator=%d, denominator=%d",
1719                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1720                              p_enc[i_enc].width, p_enc[i_enc].height,
1721                              p_enc[i_enc].rate.numerator,
1722                              p_enc[i_enc].rate.denominator );
1723             }
1724
1725             if( p_enc != NULL )
1726             {
1727                 XvFreeEncodingInfo( p_enc );
1728             }
1729
1730             msg_Dbg( p_vout, " attribute list:" );
1731             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1732                                             i_selected_port,
1733                                             &i_num_attributes );
1734             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1735             {
1736                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1737                       p_attr[i_attr].name,
1738                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1739                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1740                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1741             }
1742
1743             if( p_attr != NULL )
1744             {
1745                 XFree( p_attr );
1746             }
1747 #endif
1748         }
1749
1750         if( p_formats != NULL )
1751         {
1752             XFree( p_formats );
1753         }
1754
1755     }
1756
1757     if( i_num_adaptors > 0 )
1758     {
1759         XvFreeAdaptorInfo( p_adaptor );
1760     }
1761
1762     if( i_selected_port == -1 )
1763     {
1764         if( i_requested_adaptor == -1 )
1765         {
1766             msg_Warn( p_vout, "no free XVideo port found for format "
1767                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1768         }
1769         else
1770         {
1771             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1772                        "XVideo port for format 0x%.8x (%4.4s)",
1773                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1774         }
1775     }
1776
1777     return i_selected_port;
1778 }
1779
1780 /*****************************************************************************
1781  * XVideoReleasePort: release YUV12 port
1782  *****************************************************************************/
1783 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1784 {
1785     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1786 }
1787 #endif
1788
1789 /*****************************************************************************
1790  * InitDisplay: open and initialize X11 device
1791  *****************************************************************************
1792  * Create a window according to video output given size, and set other
1793  * properties according to the display properties.
1794  *****************************************************************************/
1795 static int InitDisplay( vout_thread_t *p_vout )
1796 {
1797 #ifdef MODULE_NAME_IS_x11
1798     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1799     XVisualInfo *               p_xvisual;           /* visuals informations */
1800     XVisualInfo                 xvisual_template;         /* visual template */
1801     int                         i_count;                       /* array size */
1802 #endif
1803
1804 #ifdef HAVE_SYS_SHM_H
1805     p_vout->p_sys->b_shm = 0;
1806
1807     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1808     {
1809 #   ifdef SYS_DARWIN
1810         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1811 #   else
1812         p_vout->p_sys->b_shm =
1813                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1814 #   endif
1815
1816         if( !p_vout->p_sys->b_shm )
1817         {
1818             msg_Warn( p_vout, "XShm video extension is unavailable" );
1819         }
1820     }
1821     else
1822     {
1823         msg_Dbg( p_vout, "disabling XShm video extension" );
1824     }
1825
1826 #else
1827     msg_Warn( p_vout, "XShm video extension is unavailable" );
1828
1829 #endif
1830
1831 #ifdef MODULE_NAME_IS_xvideo
1832     /* XXX The brightness and contrast values should be read from environment
1833      * XXX variables... */
1834 #if 0
1835     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1836     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1837 #endif
1838 #endif
1839
1840 #ifdef MODULE_NAME_IS_x11
1841     /* Initialize structure */
1842     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1843
1844     /* Get screen depth */
1845     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1846                                                    p_vout->p_sys->i_screen );
1847     switch( p_vout->p_sys->i_screen_depth )
1848     {
1849     case 8:
1850         /*
1851          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1852          */
1853         xvisual_template.screen =   p_vout->p_sys->i_screen;
1854         xvisual_template.class =    DirectColor;
1855         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1856                                     VisualScreenMask | VisualClassMask,
1857                                     &xvisual_template, &i_count );
1858         if( p_xvisual == NULL )
1859         {
1860             msg_Err( p_vout, "no PseudoColor visual available" );
1861             return VLC_EGENERIC;
1862         }
1863         p_vout->p_sys->i_bytes_per_pixel = 1;
1864         p_vout->output.pf_setpalette = SetPalette;
1865         break;
1866     case 15:
1867     case 16:
1868     case 24:
1869     default:
1870         /*
1871          * Screen depth is higher than 8bpp. TrueColor visual is used.
1872          */
1873         xvisual_template.screen =   p_vout->p_sys->i_screen;
1874         xvisual_template.class =    TrueColor;
1875         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1876                                     VisualScreenMask | VisualClassMask,
1877                                     &xvisual_template, &i_count );
1878         if( p_xvisual == NULL )
1879         {
1880             msg_Err( p_vout, "no TrueColor visual available" );
1881             return VLC_EGENERIC;
1882         }
1883
1884         p_vout->output.i_rmask = p_xvisual->red_mask;
1885         p_vout->output.i_gmask = p_xvisual->green_mask;
1886         p_vout->output.i_bmask = p_xvisual->blue_mask;
1887
1888         /* There is no difference yet between 3 and 4 Bpp. The only way
1889          * to find the actual number of bytes per pixel is to list supported
1890          * pixmap formats. */
1891         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1892         p_vout->p_sys->i_bytes_per_pixel = 0;
1893
1894         for( ; i_count-- ; p_formats++ )
1895         {
1896             /* Under XFree4.0, the list contains pixmap formats available
1897              * through all video depths ; so we have to check against current
1898              * depth. */
1899             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
1900             {
1901                 if( p_formats->bits_per_pixel / 8
1902                         > (int)p_vout->p_sys->i_bytes_per_pixel )
1903                 {
1904                     p_vout->p_sys->i_bytes_per_pixel =
1905                                                p_formats->bits_per_pixel / 8;
1906                 }
1907             }
1908         }
1909         break;
1910     }
1911     p_vout->p_sys->p_visual = p_xvisual->visual;
1912     XFree( p_xvisual );
1913 #endif
1914
1915     return VLC_SUCCESS;
1916 }
1917
1918 #ifdef HAVE_SYS_SHM_H
1919 /*****************************************************************************
1920  * CreateShmImage: create an XImage or XvImage using shared memory extension
1921  *****************************************************************************
1922  * Prepare an XImage or XvImage for display function.
1923  * The order of the operations respects the recommandations of the mit-shm
1924  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1925  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1926  *****************************************************************************/
1927 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1928                                     Display* p_display, EXTRA_ARGS_SHM,
1929                                     int i_width, int i_height )
1930 {
1931     IMAGE_TYPE *p_image;
1932
1933     /* Create XImage / XvImage */
1934 #ifdef MODULE_NAME_IS_xvideo
1935     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1936                                 i_width, i_height, p_shm );
1937 #else
1938     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1939                                p_shm, i_width, i_height );
1940 #endif
1941     if( p_image == NULL )
1942     {
1943         msg_Err( p_vout, "image creation failed" );
1944         return NULL;
1945     }
1946
1947     /* Allocate shared memory segment - 0776 set the access permission
1948      * rights (like umask), they are not yet supported by all X servers */
1949     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1950     if( p_shm->shmid < 0 )
1951     {
1952         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1953                          strerror( errno ) );
1954         IMAGE_FREE( p_image );
1955         return NULL;
1956     }
1957
1958     /* Attach shared memory segment to process (read/write) */
1959     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1960     if(! p_shm->shmaddr )
1961     {
1962         msg_Err( p_vout, "cannot attach shared memory (%s)",
1963                          strerror(errno));
1964         IMAGE_FREE( p_image );
1965         shmctl( p_shm->shmid, IPC_RMID, 0 );
1966         return NULL;
1967     }
1968
1969     /* Read-only data. We won't be using XShmGetImage */
1970     p_shm->readOnly = True;
1971
1972     /* Attach shared memory segment to X server */
1973     if( XShmAttach( p_display, p_shm ) == False )
1974     {
1975         msg_Err( p_vout, "cannot attach shared memory to X server" );
1976         IMAGE_FREE( p_image );
1977         shmctl( p_shm->shmid, IPC_RMID, 0 );
1978         shmdt( p_shm->shmaddr );
1979         return NULL;
1980     }
1981
1982     /* Send image to X server. This instruction is required, since having
1983      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1984      * and remember NOT to use XFlush ! */
1985     XSync( p_display, False );
1986
1987 #if 0
1988     /* Mark the shm segment to be removed when there are no more
1989      * attachements, so it is automatic on process exit or after shmdt */
1990     shmctl( p_shm->shmid, IPC_RMID, 0 );
1991 #endif
1992
1993     return p_image;
1994 }
1995 #endif
1996
1997 /*****************************************************************************
1998  * CreateImage: create an XImage or XvImage
1999  *****************************************************************************
2000  * Create a simple image used as a buffer.
2001  *****************************************************************************/
2002 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
2003                                  Display *p_display, EXTRA_ARGS,
2004                                  int i_width, int i_height )
2005 {
2006     byte_t *    p_data;                           /* image data storage zone */
2007     IMAGE_TYPE *p_image;
2008 #ifdef MODULE_NAME_IS_x11
2009     int         i_quantum;                     /* XImage quantum (see below) */
2010     int         i_bytes_per_line;
2011 #endif
2012
2013     /* Allocate memory for image */
2014 #ifdef MODULE_NAME_IS_xvideo
2015     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
2016 #else
2017     i_bytes_per_line = i_width * i_bytes_per_pixel;
2018     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
2019 #endif
2020     if( !p_data )
2021     {
2022         msg_Err( p_vout, "out of memory" );
2023         return NULL;
2024     }
2025
2026 #ifdef MODULE_NAME_IS_x11
2027     /* Optimize the quantum of a scanline regarding its size - the quantum is
2028        a diviser of the number of bits between the start of two scanlines. */
2029     if( i_bytes_per_line & 0xf )
2030     {
2031         i_quantum = 0x8;
2032     }
2033     else if( i_bytes_per_line & 0x10 )
2034     {
2035         i_quantum = 0x10;
2036     }
2037     else
2038     {
2039         i_quantum = 0x20;
2040     }
2041 #endif
2042
2043     /* Create XImage. p_data will be automatically freed */
2044 #ifdef MODULE_NAME_IS_xvideo
2045     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2046                              p_data, i_width, i_height );
2047 #else
2048     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2049                             p_data, i_width, i_height, i_quantum, 0 );
2050 #endif
2051     if( p_image == NULL )
2052     {
2053         msg_Err( p_vout, "XCreateImage() failed" );
2054         free( p_data );
2055         return NULL;
2056     }
2057
2058     return p_image;
2059 }
2060
2061 #ifdef MODULE_NAME_IS_x11
2062 /*****************************************************************************
2063  * SetPalette: sets an 8 bpp palette
2064  *****************************************************************************
2065  * This function sets the palette given as an argument. It does not return
2066  * anything, but could later send information on which colors it was unable
2067  * to set.
2068  *****************************************************************************/
2069 static void SetPalette( vout_thread_t *p_vout,
2070                         uint16_t *red, uint16_t *green, uint16_t *blue )
2071 {
2072     int i;
2073     XColor p_colors[255];
2074
2075     /* allocate palette */
2076     for( i = 0; i < 255; i++ )
2077     {
2078         /* kludge: colors are indexed reversely because color 255 seems
2079          * to be reserved for black even if we try to set it to white */
2080         p_colors[ i ].pixel = 255 - i;
2081         p_colors[ i ].pad   = 0;
2082         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2083         p_colors[ i ].red   = red[ 255 - i ];
2084         p_colors[ i ].blue  = blue[ 255 - i ];
2085         p_colors[ i ].green = green[ 255 - i ];
2086     }
2087
2088     XStoreColors( p_vout->p_sys->p_display,
2089                   p_vout->p_sys->colormap, p_colors, 255 );
2090 }
2091 #endif