* ./evc/plugins.vcp.in: fixed plugin entry points for WinCE.
[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 1.7 2002/11/14 22:38:48 massiot Exp $
6  *
7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
8  *          Samuel Hocevar <sam@zoy.org>
9  *          David Kennedy <dkennedy@tinytoad.com>
10  *          Gildas Bazin <gbazin@netcourrier.com>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
25  *****************************************************************************/
26
27 /*****************************************************************************
28  * Preamble
29  *****************************************************************************/
30 #include <errno.h>                                                 /* ENOMEM */
31 #include <stdlib.h>                                                /* free() */
32 #include <string.h>                                            /* strerror() */
33
34 #include <vlc/vlc.h>
35 #include <vlc/intf.h>
36 #include <vlc/vout.h>
37
38 #ifdef HAVE_MACHINE_PARAM_H
39     /* BSD */
40 #   include <machine/param.h>
41 #   include <sys/types.h>                                  /* typedef ushort */
42 #   include <sys/ipc.h>
43 #endif
44
45 #ifndef WIN32
46 #   include <netinet/in.h>                            /* BSD: struct in_addr */
47 #endif
48
49 #ifdef HAVE_SYS_SHM_H
50 #   include <sys/shm.h>                                /* shmget(), shmctl() */
51 #endif
52
53 #include <X11/Xlib.h>
54 #include <X11/Xmd.h>
55 #include <X11/Xutil.h>
56 #include <X11/keysym.h>
57 #ifdef HAVE_SYS_SHM_H
58 #   include <X11/extensions/XShm.h>
59 #endif
60 #ifdef DPMSINFO_IN_DPMS_H
61 #   include <X11/extensions/dpms.h>
62 #endif
63
64 #ifdef MODULE_NAME_IS_xvideo
65 #   include <X11/extensions/Xv.h>
66 #   include <X11/extensions/Xvlib.h>
67 #endif
68
69 #include "netutils.h"                                 /* network_ChannelJoin */
70
71 #include "xcommon.h"
72
73 /*****************************************************************************
74  * Local prototypes
75  *****************************************************************************/
76 int  E_(Activate)   ( vlc_object_t * );
77 void E_(Deactivate) ( vlc_object_t * );
78
79 static int  InitVideo      ( vout_thread_t * );
80 static void EndVideo       ( vout_thread_t * );
81 static void DisplayVideo   ( vout_thread_t *, picture_t * );
82 static int  ManageVideo    ( vout_thread_t * );
83
84 static int  InitDisplay    ( vout_thread_t * );
85
86 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
87 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
88
89 static int  NewPicture     ( vout_thread_t *, picture_t * );
90 static void FreePicture    ( vout_thread_t *, picture_t * );
91
92 static IMAGE_TYPE *CreateImage    ( vout_thread_t *, 
93                                     Display *, EXTRA_ARGS, int, int );
94 #ifdef HAVE_SYS_SHM_H
95 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
96                                     Display *, EXTRA_ARGS_SHM, int, int );
97 #endif
98
99 static void ToggleFullScreen      ( vout_thread_t * );
100
101 static void EnableXScreenSaver    ( vout_thread_t * );
102 static void DisableXScreenSaver   ( vout_thread_t * );
103
104 static void CreateCursor   ( vout_thread_t * );
105 static void DestroyCursor  ( vout_thread_t * );
106 static void ToggleCursor   ( vout_thread_t * );
107
108 #ifdef MODULE_NAME_IS_xvideo
109 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
110 static void XVideoReleasePort( vout_thread_t *, int );
111 #endif
112
113 #ifdef MODULE_NAME_IS_x11
114 static void SetPalette     ( vout_thread_t *, u16 *, u16 *, u16 * );
115 #endif
116
117 /*****************************************************************************
118  * Activate: allocate X11 video thread output method
119  *****************************************************************************
120  * This function allocate and initialize a X11 vout method. It uses some of the
121  * vout properties to choose the window size, and change them according to the
122  * actual properties of the display.
123  *****************************************************************************/
124 int E_(Activate) ( vlc_object_t *p_this )
125 {
126     vout_thread_t *p_vout = (vout_thread_t *)p_this;
127     char *       psz_display;
128 #ifdef MODULE_NAME_IS_xvideo
129     char *       psz_chroma;
130     vlc_fourcc_t i_chroma = 0;
131     vlc_bool_t   b_chroma = 0;
132 #endif
133
134     p_vout->pf_init = InitVideo;
135     p_vout->pf_end = EndVideo;
136     p_vout->pf_manage = ManageVideo;
137     p_vout->pf_render = NULL;
138     p_vout->pf_display = DisplayVideo;
139
140     /* Allocate structure */
141     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
142     if( p_vout->p_sys == NULL )
143     {
144         msg_Err( p_vout, "out of memory" );
145         return VLC_ENOMEM;
146     }
147
148     /* Open display, using the "display" config variable or the DISPLAY
149      * environment variable */
150     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
151
152     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
153
154     if( p_vout->p_sys->p_display == NULL )                          /* error */
155     {
156         msg_Err( p_vout, "cannot open display %s",
157                          XDisplayName( psz_display ) );
158         free( p_vout->p_sys );
159         if( psz_display ) free( psz_display );
160         return VLC_EGENERIC;
161     }
162     if( psz_display ) free( psz_display );
163
164     /* Get a screen ID matching the XOpenDisplay return value */
165     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
166
167 #ifdef MODULE_NAME_IS_xvideo
168     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
169     if( psz_chroma )
170     {
171         if( strlen( psz_chroma ) >= 4 )
172         {
173             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
174             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
175             i_chroma |= (unsigned char)psz_chroma[2] << 16;
176             i_chroma |= (unsigned char)psz_chroma[3] << 24;
177
178             b_chroma = 1;
179         }
180
181         free( psz_chroma );
182     }
183
184     if( b_chroma )
185     {
186         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)", 
187                  i_chroma, (char*)&i_chroma );
188     }
189     else
190     {
191         i_chroma = p_vout->render.i_chroma;
192     }
193
194     /* Check that we have access to an XVideo port providing this chroma */
195     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
196                                              &p_vout->output.i_chroma );
197     if( p_vout->p_sys->i_xvport < 0 )
198     {
199         /* If a specific chroma format was requested, then we don't try to
200          * be cleverer than the user. He knew pretty well what he wanted. */
201         if( b_chroma )
202         {
203             XCloseDisplay( p_vout->p_sys->p_display );
204             free( p_vout->p_sys );
205             return VLC_EGENERIC;
206         }
207
208         /* It failed, but it's not completely lost ! We try to open an
209          * XVideo port for an YUY2 picture. We'll need to do an YUV
210          * conversion, but at least it has got scaling. */
211         p_vout->p_sys->i_xvport =
212                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
213                                                &p_vout->output.i_chroma );
214         if( p_vout->p_sys->i_xvport < 0 )
215         {
216             /* It failed, but it's not completely lost ! We try to open an
217              * XVideo port for a simple 16bpp RGB picture. We'll need to do
218              * an YUV conversion, but at least it has got scaling. */
219             p_vout->p_sys->i_xvport =
220                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
221                                                    &p_vout->output.i_chroma );
222             if( p_vout->p_sys->i_xvport < 0 )
223             {
224                 XCloseDisplay( p_vout->p_sys->p_display );
225                 free( p_vout->p_sys );
226                 return VLC_EGENERIC;
227             }
228         }
229     }
230 #endif
231
232     /* Create blank cursor (for mouse cursor autohiding) */
233     p_vout->p_sys->i_time_mouse_last_moved = mdate();
234     p_vout->p_sys->b_mouse_pointer_visible = 1;
235     CreateCursor( p_vout );
236
237     /* Set main window's size */
238     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
239     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
240
241     /* Spawn base window - this window will include the video output window,
242      * but also command buttons, subtitles and other indicators */
243     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
244     {
245         msg_Err( p_vout, "cannot create X11 window" );
246         DestroyCursor( p_vout );
247         XCloseDisplay( p_vout->p_sys->p_display );
248         free( p_vout->p_sys );
249         return VLC_EGENERIC;
250     }
251
252     /* Open and initialize device. */
253     if( InitDisplay( p_vout ) )
254     {
255         msg_Err( p_vout, "cannot initialize X11 display" );
256         DestroyCursor( p_vout );
257         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
258         XCloseDisplay( p_vout->p_sys->p_display );
259         free( p_vout->p_sys );
260         return VLC_EGENERIC;
261     }
262
263     /* Disable screen saver */
264     DisableXScreenSaver( p_vout );
265
266     /* Misc init */
267     p_vout->p_sys->b_altfullscreen = 0;
268     p_vout->p_sys->i_time_button_last_pressed = 0;
269
270     return VLC_SUCCESS;
271 }
272
273 /*****************************************************************************
274  * Deactivate: destroy X11 video thread output method
275  *****************************************************************************
276  * Terminate an output method created by Open
277  *****************************************************************************/
278 void E_(Deactivate) ( vlc_object_t *p_this )
279 {
280     vout_thread_t *p_vout = (vout_thread_t *)p_this;
281
282     /* If the fullscreen window is still open, close it */
283     if( p_vout->b_fullscreen )
284     {
285         ToggleFullScreen( p_vout );
286     }
287
288     /* Restore cursor if it was blanked */
289     if( !p_vout->p_sys->b_mouse_pointer_visible )
290     {
291         ToggleCursor( p_vout );
292     }
293
294 #ifdef MODULE_NAME_IS_x11
295     /* Destroy colormap */
296     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
297     {
298         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
299     }
300 #else
301     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
302 #endif
303
304     DestroyCursor( p_vout );
305     EnableXScreenSaver( p_vout );
306     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
307
308     XCloseDisplay( p_vout->p_sys->p_display );
309
310     /* Destroy structure */
311     free( p_vout->p_sys );
312 }
313
314 /*****************************************************************************
315  * InitVideo: initialize X11 video thread output method
316  *****************************************************************************
317  * This function create the XImages needed by the output thread. It is called
318  * at the beginning of the thread, but also each time the window is resized.
319  *****************************************************************************/
320 static int InitVideo( vout_thread_t *p_vout )
321 {
322     int i_index;
323     picture_t *p_pic;
324
325     I_OUTPUTPICTURES = 0;
326
327 #ifdef MODULE_NAME_IS_xvideo
328     /* Initialize the output structure; we already found an XVideo port,
329      * and the corresponding chroma we will be using. Since we can
330      * arbitrary scale, stick to the coordinates and aspect. */
331     p_vout->output.i_width  = p_vout->render.i_width;
332     p_vout->output.i_height = p_vout->render.i_height;
333     p_vout->output.i_aspect = p_vout->render.i_aspect;
334
335     switch( p_vout->output.i_chroma )
336     {
337         case VLC_FOURCC('R','V','1','5'):
338             p_vout->output.i_rmask = 0x001f;
339             p_vout->output.i_gmask = 0x07e0;
340             p_vout->output.i_bmask = 0xf800;
341             break;
342         case VLC_FOURCC('R','V','1','6'):
343             p_vout->output.i_rmask = 0x001f;
344             p_vout->output.i_gmask = 0x03e0;
345             p_vout->output.i_bmask = 0x7c00;
346             break;
347     }
348
349 #else
350     /* Initialize the output structure: RGB with square pixels, whatever
351      * the input format is, since it's the only format we know */
352     switch( p_vout->p_sys->i_screen_depth )
353     {
354         case 8: /* FIXME: set the palette */
355             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
356         case 15:
357             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
358         case 16:
359             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
360         case 24:
361             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
362         case 32:
363             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
364         default:
365             msg_Err( p_vout, "unknown screen depth %i",
366                      p_vout->p_sys->i_screen_depth );
367             return VLC_SUCCESS;
368     }
369
370     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
371                        p_vout->p_sys->p_win->i_height,
372                        &i_index, &i_index,
373                        &p_vout->output.i_width, &p_vout->output.i_height );
374
375     /* Assume we have square pixels */
376     p_vout->output.i_aspect = p_vout->output.i_width
377                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
378 #endif
379
380     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
381     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
382     {
383         p_pic = NULL;
384
385         /* Find an empty picture slot */
386         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
387         {
388           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
389             {
390                 p_pic = p_vout->p_picture + i_index;
391                 break;
392             }
393         }
394
395         /* Allocate the picture */
396         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
397         {
398             break;
399         }
400
401         p_pic->i_status = DESTROYED_PICTURE;
402         p_pic->i_type   = DIRECT_PICTURE;
403
404         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
405
406         I_OUTPUTPICTURES++;
407     }
408
409     return VLC_SUCCESS;
410 }
411
412  /*****************************************************************************
413  * DisplayVideo: displays previously rendered output
414  *****************************************************************************
415  * This function sends the currently rendered image to X11 server.
416  * (The Xv extension takes care of "double-buffering".)
417  *****************************************************************************/
418 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
419 {
420     int i_width, i_height, i_x, i_y;
421
422     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
423                        p_vout->p_sys->p_win->i_height,
424                        &i_x, &i_y, &i_width, &i_height );
425
426 #ifdef HAVE_SYS_SHM_H
427     if( p_vout->p_sys->b_shm )
428     {
429         /* Display rendered image using shared memory extension */
430 #   ifdef MODULE_NAME_IS_xvideo
431         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
432                        p_vout->p_sys->p_win->video_window,
433                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
434                        0 /*src_x*/, 0 /*src_y*/,
435                        p_vout->output.i_width, p_vout->output.i_height,
436                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
437                        False /* Don't put True here or you'll waste your CPU */ );
438 #   else
439         XShmPutImage( p_vout->p_sys->p_display,
440                       p_vout->p_sys->p_win->video_window,
441                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
442                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
443                       p_vout->output.i_width, p_vout->output.i_height,
444                       False /* Don't put True here ! */ );
445 #   endif
446     }
447     else
448 #endif /* HAVE_SYS_SHM_H */
449     {
450         /* Use standard XPutImage -- this is gonna be slow ! */
451 #ifdef MODULE_NAME_IS_xvideo
452         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
453                     p_vout->p_sys->p_win->video_window,
454                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
455                     0 /*src_x*/, 0 /*src_y*/,
456                     p_vout->output.i_width, p_vout->output.i_height,
457                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
458 #else
459         XPutImage( p_vout->p_sys->p_display,
460                    p_vout->p_sys->p_win->video_window,
461                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
462                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
463                    p_vout->output.i_width, p_vout->output.i_height );
464 #endif
465     }
466
467     /* Make sure the command is sent now - do NOT use XFlush !*/
468     XSync( p_vout->p_sys->p_display, False );
469 }
470
471 /*****************************************************************************
472  * ManageVideo: handle X11 events
473  *****************************************************************************
474  * This function should be called regularly by video output thread. It manages
475  * X11 events and allows window resizing. It returns a non null value on
476  * error.
477  *****************************************************************************/
478 static int ManageVideo( vout_thread_t *p_vout )
479 {
480     XEvent      xevent;                                         /* X11 event */
481     char        i_key;                                    /* ISO Latin-1 key */
482     KeySym      x_key_symbol;
483     vlc_value_t val;
484
485     /* Handle X11 events: ConfigureNotify events are parsed to know if the
486      * output window's size changed, MapNotify and UnmapNotify to know if the
487      * window is mapped (and if the display is useful), and ClientMessages
488      * to intercept window destruction requests */
489
490     while( XCheckWindowEvent( p_vout->p_sys->p_display,
491                               p_vout->p_sys->p_win->base_window,
492                               StructureNotifyMask | KeyPressMask |
493                               ButtonPressMask | ButtonReleaseMask | 
494                               PointerMotionMask | Button1MotionMask , &xevent )
495            == True )
496     {
497         /* ConfigureNotify event: prepare  */
498         if( xevent.type == ConfigureNotify )
499         {
500             if( (xevent.xconfigure.width != p_vout->p_sys->p_win->i_width)
501               || (xevent.xconfigure.height != p_vout->p_sys->p_win->i_height) )
502             {
503                 /* Update dimensions */
504                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
505                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
506                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
507             }
508         }
509         /* Keyboard event */
510         else if( xevent.type == KeyPress )
511         {
512             /* We may have keys like F1 trough F12, ESC ... */
513             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
514                                              xevent.xkey.keycode, 0 );
515             switch( x_key_symbol )
516             {
517             case XK_Escape:
518                 if( p_vout->b_fullscreen )
519                 {
520                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
521                 }
522                 else
523                 {
524                     p_vout->p_vlc->b_die = 1;
525                 }
526                 break;
527             case XK_Menu:
528                 {
529                     intf_thread_t *p_intf;
530                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
531                                                       FIND_ANYWHERE );
532                     if( p_intf )
533                     {
534                         p_intf->b_menu_change = 1;
535                         vlc_object_release( p_intf );
536                     }
537                 }
538                 break;
539             case XK_Left:
540                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
541                 break;
542             case XK_Right:
543                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
544                 break;
545             case XK_Up:
546                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
547                 break;
548             case XK_Down:
549                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
550                 break;
551             case XK_Home:
552                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
553                 break;
554             case XK_End:
555                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
556                 break;
557             case XK_Page_Up:
558                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
559                 break;
560             case XK_Page_Down:
561                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
562                 break;
563             case XK_space:
564                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
565                 break;
566
567             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
568             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
569             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
570             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
571             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
572             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
573             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
574             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
575             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
576             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
577             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
578             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
579
580             default:
581                 /* "Normal Keys"
582                  * The reason why I use this instead of XK_0 is that 
583                  * with XLookupString, we don't have to care about
584                  * keymaps. */
585
586                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
587                 {
588                     /* FIXME: handle stuff here */
589                     switch( i_key )
590                     {
591                     case 'q':
592                     case 'Q':
593                         p_vout->p_vlc->b_die = 1;
594                         break;
595                     case 'f':
596                     case 'F':
597                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
598                         break;
599
600                     default:
601                         break;
602                     }
603                 }
604                 break;
605             }
606         }
607         /* Mouse click */
608         else if( xevent.type == ButtonPress )
609         {
610             switch( ((XButtonEvent *)&xevent)->button )
611             {
612                 case Button1:
613
614                     /* detect double-clicks */
615                     if( ( ((XButtonEvent *)&xevent)->time -
616                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
617                     {
618                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
619                     }
620
621                     p_vout->p_sys->i_time_button_last_pressed =
622                         ((XButtonEvent *)&xevent)->time;
623                     break;
624
625                 case Button4:
626                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
627                     break;
628
629                 case Button5:
630                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
631                     break;
632             }
633         }
634         /* Mouse release */
635         else if( xevent.type == ButtonRelease )
636         {
637             switch( ((XButtonEvent *)&xevent)->button )
638             {
639                 case Button1:
640                     val.b_bool = VLC_TRUE;
641                     var_Set( p_vout, "mouse-clicked", val );
642                     break;
643
644                 case Button3:
645                     {
646                         intf_thread_t *p_intf;
647                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
648                                                           FIND_ANYWHERE );
649                         if( p_intf )
650                         {
651                             p_intf->b_menu_change = 1;
652                             vlc_object_release( p_intf );
653                         }
654                     }
655                     break;
656             }
657         }
658         /* Mouse move */
659         else if( xevent.type == MotionNotify )
660         {
661             int i_width, i_height, i_x, i_y;
662             vlc_value_t val;
663
664             /* somewhat different use for vout_PlacePicture:
665              * here the values are needed to give to mouse coordinates
666              * in the original picture space */
667             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
668                                p_vout->p_sys->p_win->i_height,
669                                &i_x, &i_y, &i_width, &i_height );
670
671             val.i_int = ( xevent.xmotion.x - i_x )
672                          * p_vout->render.i_width / i_width;
673             var_Set( p_vout, "mouse-x", val );
674             val.i_int = ( xevent.xmotion.y - i_y )
675                          * p_vout->render.i_height / i_height;
676             var_Set( p_vout, "mouse-y", val );
677
678             val.b_bool = VLC_TRUE;
679             var_Set( p_vout, "mouse-moved", val );
680
681             p_vout->p_sys->i_time_mouse_last_moved = mdate();
682             if( ! p_vout->p_sys->b_mouse_pointer_visible )
683             {
684                 ToggleCursor( p_vout ); 
685             }
686         }
687         /* Reparent move -- XXX: why are we getting this ? */
688         else if( xevent.type == ReparentNotify )
689         {
690             ;
691         }
692         /* Other event */
693         else
694         {
695             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
696         }
697     }
698
699     /* Handle events for video output sub-window */
700     while( XCheckWindowEvent( p_vout->p_sys->p_display,
701                               p_vout->p_sys->p_win->video_window,
702                               ExposureMask, &xevent ) == True )
703     {
704         /* Window exposed (only handled if stream playback is paused) */
705         if( xevent.type == Expose )
706         {
707             if( ((XExposeEvent *)&xevent)->count == 0 )
708             {
709                 /* (if this is the last a collection of expose events...) */
710 #if 0
711                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
712                 {
713                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
714                                                    ->stream.control.i_status )
715                     {
716                         /* XVideoDisplay( p_vout )*/;
717                     }
718                 }
719 #endif
720             }
721         }
722     }
723
724     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
725      * are handled - according to the man pages, the format is always 32
726      * in this case */
727     while( XCheckTypedEvent( p_vout->p_sys->p_display,
728                              ClientMessage, &xevent ) )
729     {
730         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
731                && (xevent.xclient.data.l[0]
732                      == p_vout->p_sys->p_win->wm_delete_window ) )
733         {
734             p_vout->p_vlc->b_die = 1;
735         }
736     }
737
738     /*
739      * Fullscreen Change
740      */
741     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
742     {
743         ToggleFullScreen( p_vout );
744         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
745     }
746
747     /*
748      * Size change
749      *
750      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
751      *  the size flag inside the fullscreen routine)
752      */
753     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
754     {
755         int i_width, i_height, i_x, i_y;
756
757         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
758
759         msg_Dbg( p_vout, "video display resized (%dx%d)",
760                          p_vout->p_sys->p_win->i_width,
761                          p_vout->p_sys->p_win->i_height );
762  
763 #ifdef MODULE_NAME_IS_x11
764         /* We need to signal the vout thread about the size change because it
765          * is doing the rescaling */
766         p_vout->i_changes |= VOUT_SIZE_CHANGE;
767 #endif
768
769         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
770                            p_vout->p_sys->p_win->i_height,
771                            &i_x, &i_y, &i_width, &i_height );
772
773         XResizeWindow( p_vout->p_sys->p_display,
774                        p_vout->p_sys->p_win->video_window, i_width, i_height );
775         
776         XMoveWindow( p_vout->p_sys->p_display,
777                      p_vout->p_sys->p_win->video_window, i_x, i_y );
778     }
779
780     /* Autohide Cursour */
781     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
782     {
783         /* Hide the mouse automatically */
784         if( p_vout->p_sys->b_mouse_pointer_visible )
785         {
786             ToggleCursor( p_vout );
787         }
788     }
789
790     return 0;
791 }
792
793 /*****************************************************************************
794  * EndVideo: terminate X11 video thread output method
795  *****************************************************************************
796  * Destroy the X11 XImages created by Init. It is called at the end of
797  * the thread, but also each time the window is resized.
798  *****************************************************************************/
799 static void EndVideo( vout_thread_t *p_vout )
800 {
801     int i_index;
802
803     /* Free the direct buffers we allocated */
804     for( i_index = I_OUTPUTPICTURES ; i_index ; )
805     {
806         i_index--;
807         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
808     }
809 }
810
811 /* following functions are local */
812
813 /*****************************************************************************
814  * CreateWindow: open and set-up X11 main window
815  *****************************************************************************/
816 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
817 {
818     XSizeHints              xsize_hints;
819     XSetWindowAttributes    xwindow_attributes;
820     XGCValues               xgcvalues;
821     XEvent                  xevent;
822
823     vlc_bool_t              b_expose;
824     vlc_bool_t              b_configure_notify;
825     vlc_bool_t              b_map_notify;
826
827     long long int           i_drawable;
828
829     /* Prepare window manager hints and properties */
830     xsize_hints.base_width          = p_win->i_width;
831     xsize_hints.base_height         = p_win->i_height;
832     xsize_hints.flags               = PSize;
833     p_win->wm_protocols =
834              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
835     p_win->wm_delete_window =
836              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
837
838     /* Prepare window attributes */
839     xwindow_attributes.backing_store = Always;       /* save the hidden part */
840     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
841                                                      p_vout->p_sys->i_screen);
842     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
843
844     /* Check whether someone provided us with a window ID */
845     i_drawable = p_vout->b_fullscreen ?
846                     -1 : config_GetInt( p_vout, MODULE_STRING "-drawable");
847
848     if( i_drawable == -1 )
849     {
850         p_win->b_owned = VLC_TRUE;
851
852         /* Create the window and set hints - the window must receive
853          * ConfigureNotify events, and until it is displayed, Expose and
854          * MapNotify events. */
855
856         p_win->base_window =
857             XCreateWindow( p_vout->p_sys->p_display,
858                            DefaultRootWindow( p_vout->p_sys->p_display ),
859                            0, 0,
860                            p_win->i_width, p_win->i_height,
861                            0,
862                            0, InputOutput, 0,
863                            CWBackingStore | CWBackPixel | CWEventMask,
864                            &xwindow_attributes );
865
866         if( !p_vout->b_fullscreen )
867         {
868             /* Set window manager hints and properties: size hints, command,
869              * window's name, and accepted protocols */
870             XSetWMNormalHints( p_vout->p_sys->p_display,
871                                p_win->base_window, &xsize_hints );
872             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
873                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
874
875             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
876 #ifdef MODULE_NAME_IS_x11
877                         VOUT_TITLE " (X11 output)"
878 #else
879                         VOUT_TITLE " (XVideo output)"
880 #endif
881                       );
882         }
883     }
884     else
885     {
886         p_win->b_owned = VLC_FALSE;
887         p_win->base_window = i_drawable;
888
889         XChangeWindowAttributes( p_vout->p_sys->p_display,
890                                  p_win->base_window,
891                                  CWBackingStore | CWBackPixel | CWEventMask,
892                                  &xwindow_attributes );
893     }
894
895     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
896         || (p_win->wm_delete_window == None)
897         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
898                              &p_win->wm_delete_window, 1 ) )
899     {
900         /* WM_DELETE_WINDOW is not supported by window manager */
901         msg_Warn( p_vout, "missing or bad window manager" );
902     } 
903
904     /* Creation of a graphic context that doesn't generate a GraphicsExpose
905      * event when using functions like XCopyArea */
906     xgcvalues.graphics_exposures = False;
907     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
908                            p_win->base_window,
909                            GCGraphicsExposures, &xgcvalues );
910
911     if( p_win->b_owned )
912     {
913         /* Send orders to server, and wait until window is displayed - three
914          * events must be received: a MapNotify event, an Expose event allowing
915          * drawing in the window, and a ConfigureNotify to get the window
916          * dimensions. Once those events have been received, only
917          * ConfigureNotify events need to be received. */
918         b_expose = 0;
919         b_configure_notify = 0;
920         b_map_notify = 0;
921         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
922         do
923         {
924             XNextEvent( p_vout->p_sys->p_display, &xevent);
925             if( (xevent.type == Expose)
926                 && (xevent.xexpose.window == p_win->base_window) )
927             {
928                 b_expose = 1;
929             }
930             else if( (xevent.type == MapNotify)
931                      && (xevent.xmap.window == p_win->base_window) )
932             {
933                 b_map_notify = 1;
934             }
935             else if( (xevent.type == ConfigureNotify)
936                      && (xevent.xconfigure.window == p_win->base_window) )
937             {
938                 b_configure_notify = 1;
939                 p_win->i_width = xevent.xconfigure.width;
940                 p_win->i_height = xevent.xconfigure.height;
941             }
942         } while( !( b_expose && b_configure_notify && b_map_notify ) );
943     }
944     else
945     {
946         /* Get the window's geometry information */
947         Window dummy1;
948         unsigned int dummy2, dummy3;
949         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
950                       &dummy1, &dummy2, &dummy3,
951                       &p_win->i_width,
952                       &p_win->i_height,
953                       &dummy2, &dummy3 );
954     }
955
956     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
957                   StructureNotifyMask | KeyPressMask |
958                   ButtonPressMask | ButtonReleaseMask | 
959                   PointerMotionMask );
960
961 #ifdef MODULE_NAME_IS_x11
962     if( p_win->b_owned &&
963          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
964     {
965         /* Allocate a new palette */
966         p_vout->p_sys->colormap =
967             XCreateColormap( p_vout->p_sys->p_display,
968                              DefaultRootWindow( p_vout->p_sys->p_display ),
969                              DefaultVisual( p_vout->p_sys->p_display,
970                                             p_vout->p_sys->i_screen ),
971                              AllocAll );
972
973         xwindow_attributes.colormap = p_vout->p_sys->colormap;
974         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
975                                  CWColormap, &xwindow_attributes );
976     }
977 #endif
978
979     /* Create video output sub-window. */
980     p_win->video_window =  XCreateSimpleWindow(
981                                       p_vout->p_sys->p_display,
982                                       p_win->base_window, 0, 0,
983                                       p_win->i_width, p_win->i_height,
984                                       0,
985                                       BlackPixel( p_vout->p_sys->p_display,
986                                                   p_vout->p_sys->i_screen ),
987                                       WhitePixel( p_vout->p_sys->p_display,
988                                                   p_vout->p_sys->i_screen ) );
989
990     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
991                           BlackPixel( p_vout->p_sys->p_display,
992                                       p_vout->p_sys->i_screen ) );
993
994     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
995     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
996                   ExposureMask );
997
998     /* make sure the video window will be centered in the next ManageVideo() */
999     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1000
1001     /* If the cursor was formerly blank than blank it again */
1002     if( !p_vout->p_sys->b_mouse_pointer_visible )
1003     {
1004         ToggleCursor( p_vout );
1005         ToggleCursor( p_vout );
1006     }
1007
1008     /* Do NOT use XFlush here ! */
1009     XSync( p_vout->p_sys->p_display, False );
1010
1011     /* At this stage, the window is open, displayed, and ready to
1012      * receive data */
1013     p_vout->p_sys->p_win = p_win;
1014
1015     return VLC_SUCCESS;
1016 }
1017
1018 /*****************************************************************************
1019  * DestroyWindow: destroy the window
1020  *****************************************************************************
1021  *
1022  *****************************************************************************/
1023 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1024 {
1025     /* Do NOT use XFlush here ! */
1026     XSync( p_vout->p_sys->p_display, False );
1027
1028     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1029     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1030
1031     if( p_win->b_owned )
1032     {
1033         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1034         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1035     }
1036 }
1037
1038 /*****************************************************************************
1039  * NewPicture: allocate a picture
1040  *****************************************************************************
1041  * Returns 0 on success, -1 otherwise
1042  *****************************************************************************/
1043 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1044 {
1045     /* We know the chroma, allocate a buffer which will be used
1046      * directly by the decoder */
1047     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1048
1049     if( p_pic->p_sys == NULL )
1050     {
1051         return -1;
1052     }
1053
1054 #ifdef HAVE_SYS_SHM_H
1055     if( p_vout->p_sys->b_shm )
1056     {
1057         /* Create image using XShm extension */
1058         p_pic->p_sys->p_image =
1059             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1060 #   ifdef MODULE_NAME_IS_xvideo
1061                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1062 #   else
1063                             p_vout->p_sys->p_visual,
1064                             p_vout->p_sys->i_screen_depth,
1065 #   endif
1066                             &p_pic->p_sys->shminfo,
1067                             p_vout->output.i_width, p_vout->output.i_height );
1068     }
1069     else
1070 #endif /* HAVE_SYS_SHM_H */
1071     {
1072         /* Create image without XShm extension */
1073         p_pic->p_sys->p_image =
1074             CreateImage( p_vout, p_vout->p_sys->p_display,
1075 #ifdef MODULE_NAME_IS_xvideo
1076                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1077 #else
1078                          p_vout->p_sys->p_visual,
1079                          p_vout->p_sys->i_screen_depth, 
1080                          p_vout->p_sys->i_bytes_per_pixel,
1081 #endif
1082                          p_vout->output.i_width, p_vout->output.i_height );
1083     }
1084
1085     if( p_pic->p_sys->p_image == NULL )
1086     {
1087         free( p_pic->p_sys );
1088         return -1;
1089     }
1090
1091     switch( p_vout->output.i_chroma )
1092     {
1093 #ifdef MODULE_NAME_IS_xvideo
1094         case VLC_FOURCC('I','4','2','0'):
1095
1096             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1097                                + p_pic->p_sys->p_image->offsets[0];
1098             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1099             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1100             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1101             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1102
1103             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1104                                + p_pic->p_sys->p_image->offsets[1];
1105             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1106             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1107             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1108             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1109
1110             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1111                                + p_pic->p_sys->p_image->offsets[2];
1112             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1113             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1114             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1115             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1116
1117             p_pic->i_planes = 3;
1118             break;
1119
1120         case VLC_FOURCC('Y','V','1','2'):
1121
1122             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1123                                + p_pic->p_sys->p_image->offsets[0];
1124             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1125             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1126             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1127             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1128
1129             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1130                                + p_pic->p_sys->p_image->offsets[2];
1131             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1132             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1133             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1134             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1135
1136             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1137                                + p_pic->p_sys->p_image->offsets[1];
1138             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1139             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1140             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1141             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1142
1143             p_pic->i_planes = 3;
1144             break;
1145
1146         case VLC_FOURCC('Y','2','1','1'):
1147
1148             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1149                                   + p_pic->p_sys->p_image->offsets[0];
1150             p_pic->p->i_lines = p_vout->output.i_height;
1151             /* XXX: this just looks so plain wrong... check it out ! */
1152             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1153             p_pic->p->i_pixel_pitch = 4;
1154             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1155
1156             p_pic->i_planes = 1;
1157             break;
1158
1159         case VLC_FOURCC('Y','U','Y','2'):
1160         case VLC_FOURCC('U','Y','V','Y'):
1161
1162             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1163                                   + p_pic->p_sys->p_image->offsets[0];
1164             p_pic->p->i_lines = p_vout->output.i_height;
1165             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1166             p_pic->p->i_pixel_pitch = 4;
1167             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1168
1169             p_pic->i_planes = 1;
1170             break;
1171
1172         case VLC_FOURCC('R','V','1','5'):
1173
1174             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1175                                   + p_pic->p_sys->p_image->offsets[0];
1176             p_pic->p->i_lines = p_vout->output.i_height;
1177             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1178             p_pic->p->i_pixel_pitch = 2;
1179             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1180
1181             p_pic->i_planes = 1;
1182             break;
1183
1184         case VLC_FOURCC('R','V','1','6'):
1185
1186             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1187                                   + p_pic->p_sys->p_image->offsets[0];
1188             p_pic->p->i_lines = p_vout->output.i_height;
1189             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1190             p_pic->p->i_pixel_pitch = 2;
1191             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1192
1193             p_pic->i_planes = 1;
1194             break;
1195
1196 #else
1197         case VLC_FOURCC('R','G','B','2'):
1198
1199             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1200                                   + p_pic->p_sys->p_image->xoffset;
1201             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1202             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1203             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1204             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1205
1206             p_pic->i_planes = 1;
1207
1208             break;
1209
1210         case VLC_FOURCC('R','V','1','6'):
1211         case VLC_FOURCC('R','V','1','5'):
1212
1213             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1214                                   + p_pic->p_sys->p_image->xoffset;
1215             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1216             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1217             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1218             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1219
1220             p_pic->i_planes = 1;
1221
1222             break;
1223
1224         case VLC_FOURCC('R','V','3','2'):
1225         case VLC_FOURCC('R','V','2','4'):
1226
1227             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1228                                   + p_pic->p_sys->p_image->xoffset;
1229             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1230             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1231             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1232             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1233
1234             p_pic->i_planes = 1;
1235
1236             break;
1237 #endif
1238
1239         default:
1240             /* Unknown chroma, tell the guy to get lost */
1241             IMAGE_FREE( p_pic->p_sys->p_image );
1242             free( p_pic->p_sys );
1243             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1244                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1245             p_pic->i_planes = 0;
1246             return -1;
1247     }
1248
1249     return 0;
1250 }
1251
1252 /*****************************************************************************
1253  * FreePicture: destroy a picture allocated with NewPicture
1254  *****************************************************************************
1255  * Destroy XImage AND associated data. If using Shm, detach shared memory
1256  * segment from server and process, then free it. The XDestroyImage manpage
1257  * says that both the image structure _and_ the data pointed to by the
1258  * image structure are freed, so no need to free p_image->data.
1259  *****************************************************************************/
1260 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1261 {
1262     /* The order of operations is correct */
1263 #ifdef HAVE_SYS_SHM_H
1264     if( p_vout->p_sys->b_shm )
1265     {
1266         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1267         IMAGE_FREE( p_pic->p_sys->p_image );
1268
1269         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1270         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1271         {
1272             msg_Err( p_vout, "cannot detach shared memory (%s)",
1273                              strerror(errno) );
1274         }
1275     }
1276     else
1277 #endif
1278     {
1279         IMAGE_FREE( p_pic->p_sys->p_image );
1280     }
1281
1282     /* Do NOT use XFlush here ! */
1283     XSync( p_vout->p_sys->p_display, False );
1284
1285     free( p_pic->p_sys );
1286 }
1287
1288 /*****************************************************************************
1289  * ToggleFullScreen: Enable or disable full screen mode
1290  *****************************************************************************
1291  * This function will switch between fullscreen and window mode.
1292  *****************************************************************************/
1293 static void ToggleFullScreen ( vout_thread_t *p_vout )
1294 {
1295     Atom prop;
1296     XEvent xevent;
1297     mwmhints_t mwmhints;
1298     XSetWindowAttributes attributes;
1299
1300     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1301
1302     if( p_vout->b_fullscreen )
1303     {
1304         msg_Dbg( p_vout, "entering fullscreen mode" );
1305
1306         p_vout->p_sys->b_altfullscreen =
1307             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1308
1309         if( p_vout->p_sys->p_win->b_owned )
1310         {
1311             XUnmapWindow( p_vout->p_sys->p_display,
1312                           p_vout->p_sys->p_win->base_window);
1313         }
1314
1315         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1316
1317         /* fullscreen window size and position */
1318         p_vout->p_sys->p_win->i_width =
1319             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1320         p_vout->p_sys->p_win->i_height =
1321             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1322
1323         CreateWindow( p_vout, p_vout->p_sys->p_win );
1324
1325         /* To my knowledge there are two ways to create a borderless window.
1326          * There's the generic way which is to tell x to bypass the window
1327          * manager, but this creates problems with the focus of other
1328          * applications.
1329          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1330          * luckily seems to be supported by most window managers. */
1331         if( !p_vout->p_sys->b_altfullscreen )
1332         {
1333             mwmhints.flags = MWM_HINTS_DECORATIONS;
1334             mwmhints.decorations = False;
1335
1336             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1337                                 False );
1338             XChangeProperty( p_vout->p_sys->p_display,
1339                              p_vout->p_sys->p_win->base_window,
1340                              prop, prop, 32, PropModeReplace,
1341                              (unsigned char *)&mwmhints,
1342                              PROP_MWM_HINTS_ELEMENTS );
1343         }
1344         else
1345         {
1346             /* brute force way to remove decorations */
1347             attributes.override_redirect = True;
1348             XChangeWindowAttributes( p_vout->p_sys->p_display,
1349                                      p_vout->p_sys->p_win->base_window,
1350                                      CWOverrideRedirect,
1351                                      &attributes);
1352         }
1353
1354         /* Make sure the change is effective */
1355         XReparentWindow( p_vout->p_sys->p_display,
1356                          p_vout->p_sys->p_win->base_window,
1357                          DefaultRootWindow( p_vout->p_sys->p_display ),
1358                          0, 0 );
1359
1360         /* fullscreen window size and position */
1361         p_vout->p_sys->p_win->i_width =
1362             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1363         p_vout->p_sys->p_win->i_height =
1364             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1365
1366         XMoveResizeWindow( p_vout->p_sys->p_display,
1367                            p_vout->p_sys->p_win->base_window,
1368                            0, 0,
1369                            p_vout->p_sys->p_win->i_width,
1370                            p_vout->p_sys->p_win->i_height );
1371     }
1372     else
1373     {
1374         msg_Dbg( p_vout, "leaving fullscreen mode" );
1375         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1376         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1377
1378         if( p_vout->p_sys->p_win->b_owned )
1379         {
1380             XMapWindow( p_vout->p_sys->p_display,
1381                         p_vout->p_sys->p_win->base_window);
1382         }
1383     }
1384
1385     /* Unfortunately, using XSync() here is not enough to ensure the
1386      * window has already been mapped because the XMapWindow() request
1387      * has not necessarily been sent directly to our window (remember,
1388      * the call is first redirected to the window manager) */
1389     if( p_vout->p_sys->p_win->b_owned )
1390     {
1391         do
1392         {
1393             XWindowEvent( p_vout->p_sys->p_display,
1394                           p_vout->p_sys->p_win->base_window,
1395                           StructureNotifyMask, &xevent );
1396         } while( xevent.type != MapNotify );
1397     }
1398     else
1399     {
1400         XSync( p_vout->p_sys->p_display, False );
1401     }
1402
1403     /* Becareful, this can generate a BadMatch error if the window is not
1404      * already mapped by the server (see above) */
1405     XSetInputFocus(p_vout->p_sys->p_display,
1406                    p_vout->p_sys->p_win->base_window,
1407                    RevertToParent,
1408                    CurrentTime);
1409
1410     /* signal that the size needs to be updated */
1411     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1412 }
1413
1414 /*****************************************************************************
1415  * EnableXScreenSaver: enable screen saver
1416  *****************************************************************************
1417  * This function enables the screen saver on a display after it has been
1418  * disabled by XDisableScreenSaver.
1419  * FIXME: what happens if multiple vlc sessions are running at the same
1420  *        time ???
1421  *****************************************************************************/
1422 static void EnableXScreenSaver( vout_thread_t *p_vout )
1423 {
1424 #ifdef DPMSINFO_IN_DPMS_H
1425     int dummy;
1426 #endif
1427
1428     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1429                      p_vout->p_sys->i_ss_interval,
1430                      p_vout->p_sys->i_ss_blanking,
1431                      p_vout->p_sys->i_ss_exposure );
1432
1433     /* Restore DPMS settings */
1434 #ifdef DPMSINFO_IN_DPMS_H
1435     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1436     {
1437         if( p_vout->p_sys->b_ss_dpms )
1438         {
1439             DPMSEnable( p_vout->p_sys->p_display );
1440         }
1441     }
1442 #endif
1443 }
1444
1445 /*****************************************************************************
1446  * DisableXScreenSaver: disable screen saver
1447  *****************************************************************************
1448  * See XEnableXScreenSaver
1449  *****************************************************************************/
1450 static void DisableXScreenSaver( vout_thread_t *p_vout )
1451 {
1452 #ifdef DPMSINFO_IN_DPMS_H
1453     int dummy;
1454 #endif
1455
1456     /* Save screen saver informations */
1457     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1458                      &p_vout->p_sys->i_ss_interval,
1459                      &p_vout->p_sys->i_ss_blanking,
1460                      &p_vout->p_sys->i_ss_exposure );
1461
1462     /* Disable screen saver */
1463     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1464                      p_vout->p_sys->i_ss_interval,
1465                      p_vout->p_sys->i_ss_blanking,
1466                      p_vout->p_sys->i_ss_exposure );
1467
1468     /* Disable DPMS */
1469 #ifdef DPMSINFO_IN_DPMS_H
1470     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1471     {
1472         CARD16 unused;
1473         /* Save DPMS current state */
1474         DPMSInfo( p_vout->p_sys->p_display, &unused,
1475                   &p_vout->p_sys->b_ss_dpms );
1476         DPMSDisable( p_vout->p_sys->p_display );
1477    }
1478 #endif
1479 }
1480
1481 /*****************************************************************************
1482  * CreateCursor: create a blank mouse pointer
1483  *****************************************************************************/
1484 static void CreateCursor( vout_thread_t *p_vout )
1485 {
1486     XColor cursor_color;
1487
1488     p_vout->p_sys->cursor_pixmap =
1489         XCreatePixmap( p_vout->p_sys->p_display,
1490                        DefaultRootWindow( p_vout->p_sys->p_display ),
1491                        1, 1, 1 );
1492
1493     XParseColor( p_vout->p_sys->p_display,
1494                  XCreateColormap( p_vout->p_sys->p_display,
1495                                   DefaultRootWindow(
1496                                                     p_vout->p_sys->p_display ),
1497                                   DefaultVisual(
1498                                                 p_vout->p_sys->p_display,
1499                                                 p_vout->p_sys->i_screen ),
1500                                   AllocNone ),
1501                  "black", &cursor_color );
1502
1503     p_vout->p_sys->blank_cursor =
1504         XCreatePixmapCursor( p_vout->p_sys->p_display,
1505                              p_vout->p_sys->cursor_pixmap,
1506                              p_vout->p_sys->cursor_pixmap,
1507                              &cursor_color, &cursor_color, 1, 1 );
1508 }
1509
1510 /*****************************************************************************
1511  * DestroyCursor: destroy the blank mouse pointer
1512  *****************************************************************************/
1513 static void DestroyCursor( vout_thread_t *p_vout )
1514 {
1515     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1516 }
1517
1518 /*****************************************************************************
1519  * ToggleCursor: hide or show the mouse pointer
1520  *****************************************************************************
1521  * This function hides the X pointer if it is visible by setting the pointer
1522  * sprite to a blank one. To show it again, we disable the sprite.
1523  *****************************************************************************/
1524 static void ToggleCursor( vout_thread_t *p_vout )
1525 {
1526     if( p_vout->p_sys->b_mouse_pointer_visible )
1527     {
1528         XDefineCursor( p_vout->p_sys->p_display,
1529                        p_vout->p_sys->p_win->base_window,
1530                        p_vout->p_sys->blank_cursor );
1531         p_vout->p_sys->b_mouse_pointer_visible = 0;
1532     }
1533     else
1534     {
1535         XUndefineCursor( p_vout->p_sys->p_display,
1536                          p_vout->p_sys->p_win->base_window );
1537         p_vout->p_sys->b_mouse_pointer_visible = 1;
1538     }
1539 }
1540
1541 #ifdef MODULE_NAME_IS_xvideo
1542 /*****************************************************************************
1543  * XVideoGetPort: get YUV12 port
1544  *****************************************************************************/
1545 static int XVideoGetPort( vout_thread_t *p_vout,
1546                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1547 {
1548     XvAdaptorInfo *p_adaptor;
1549     unsigned int i;
1550     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1551     int i_selected_port;
1552
1553     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1554     {
1555         case Success:
1556             break;
1557
1558         case XvBadExtension:
1559             msg_Warn( p_vout, "XvBadExtension" );
1560             return -1;
1561
1562         case XvBadAlloc:
1563             msg_Warn( p_vout, "XvBadAlloc" );
1564             return -1;
1565
1566         default:
1567             msg_Warn( p_vout, "XvQueryExtension failed" );
1568             return -1;
1569     }
1570
1571     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1572                              DefaultRootWindow( p_vout->p_sys->p_display ),
1573                              &i_num_adaptors, &p_adaptor ) )
1574     {
1575         case Success:
1576             break;
1577
1578         case XvBadExtension:
1579             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1580             return -1;
1581
1582         case XvBadAlloc:
1583             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1584             return -1;
1585
1586         default:
1587             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1588             return -1;
1589     }
1590
1591     i_selected_port = -1;
1592     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1593
1594     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1595     {
1596         XvImageFormatValues *p_formats;
1597         int i_format, i_num_formats;
1598         int i_port;
1599
1600         /* If we requested an adaptor and it's not this one, we aren't
1601          * interested */
1602         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1603         {
1604             continue;
1605         }
1606
1607         /* If the adaptor doesn't have the required properties, skip it */
1608         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1609             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1610         {
1611             continue;
1612         }
1613
1614         /* Check that adaptor supports our requested format... */
1615         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1616                                         p_adaptor[i_adaptor].base_id,
1617                                         &i_num_formats );
1618
1619         for( i_format = 0;
1620              i_format < i_num_formats && ( i_selected_port == -1 );
1621              i_format++ )
1622         {
1623             /* Code removed, we can get this through xvinfo anyway */
1624 #if 0
1625             XvEncodingInfo  *p_enc;
1626             int             i_enc, i_num_encodings;
1627             XvAttribute     *p_attr;
1628             int             i_attr, i_num_attributes;
1629 #endif
1630
1631             /* If this is not the format we want, or at least a
1632              * similar one, forget it */
1633             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1634             {
1635                 continue;
1636             }
1637
1638             /* Look for the first available port supporting this format */
1639             for( i_port = p_adaptor[i_adaptor].base_id;
1640                  ( i_port < p_adaptor[i_adaptor].base_id
1641                              + p_adaptor[i_adaptor].num_ports )
1642                    && ( i_selected_port == -1 );
1643                  i_port++ )
1644             {
1645                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1646                      == Success )
1647                 {
1648                     i_selected_port = i_port;
1649                     *pi_newchroma = p_formats[ i_format ].id;
1650                 }
1651             }
1652
1653             /* If no free port was found, forget it */
1654             if( i_selected_port == -1 )
1655             {
1656                 continue;
1657             }
1658
1659             /* If we found a port, print information about it */
1660             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1661                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1662                      (char *)&p_formats[ i_format ].id,
1663                      ( p_formats[ i_format ].format == XvPacked ) ?
1664                          "packed" : "planar" );
1665
1666 #if 0
1667             msg_Dbg( p_vout, " encoding list:" );
1668
1669             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1670                                   &i_num_encodings, &p_enc )
1671                  != Success )
1672             {
1673                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1674                 continue;
1675             }
1676
1677             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1678             {
1679                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1680                                       " numerator=%d, denominator=%d",
1681                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1682                              p_enc[i_enc].width, p_enc[i_enc].height,
1683                              p_enc[i_enc].rate.numerator,
1684                              p_enc[i_enc].rate.denominator );
1685             }
1686
1687             if( p_enc != NULL )
1688             {
1689                 XvFreeEncodingInfo( p_enc );
1690             }
1691
1692             msg_Dbg( p_vout, " attribute list:" );
1693             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1694                                             i_selected_port,
1695                                             &i_num_attributes );
1696             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1697             {
1698                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1699                       p_attr[i_attr].name,
1700                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1701                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1702                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1703             }
1704
1705             if( p_attr != NULL )
1706             {
1707                 XFree( p_attr );
1708             }
1709 #endif
1710         }
1711
1712         if( p_formats != NULL )
1713         {
1714             XFree( p_formats );
1715         }
1716
1717     }
1718
1719     if( i_num_adaptors > 0 )
1720     {
1721         XvFreeAdaptorInfo( p_adaptor );
1722     }
1723
1724     if( i_selected_port == -1 )
1725     {
1726         if( i_requested_adaptor == -1 )
1727         {
1728             msg_Warn( p_vout, "no free XVideo port found for format "
1729                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1730         }
1731         else
1732         {
1733             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1734                        "XVideo port for format 0x%.8x (%4.4s)",
1735                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1736         }
1737     }
1738
1739     return i_selected_port;
1740 }
1741
1742 /*****************************************************************************
1743  * XVideoReleasePort: release YUV12 port
1744  *****************************************************************************/
1745 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1746 {
1747     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1748 }
1749 #endif
1750
1751 /*****************************************************************************
1752  * InitDisplay: open and initialize X11 device
1753  *****************************************************************************
1754  * Create a window according to video output given size, and set other
1755  * properties according to the display properties.
1756  *****************************************************************************/
1757 static int InitDisplay( vout_thread_t *p_vout )
1758 {
1759 #ifdef MODULE_NAME_IS_x11
1760     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1761     XVisualInfo *               p_xvisual;           /* visuals informations */
1762     XVisualInfo                 xvisual_template;         /* visual template */
1763     int                         i_count;                       /* array size */
1764 #endif
1765
1766 #ifdef HAVE_SYS_SHM_H
1767     p_vout->p_sys->b_shm = 0;
1768
1769     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1770     {
1771 #   ifdef SYS_DARWIN
1772         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1773 #   else
1774         p_vout->p_sys->b_shm =
1775                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1776 #   endif
1777
1778         if( !p_vout->p_sys->b_shm )
1779         {
1780             msg_Warn( p_vout, "XShm video extension is unavailable" );
1781         }
1782     }
1783     else
1784     {
1785         msg_Dbg( p_vout, "disabling XShm video extension" );
1786     }
1787
1788 #else
1789     msg_Warn( p_vout, "XShm video extension is unavailable" );
1790
1791 #endif
1792
1793 #ifdef MODULE_NAME_IS_xvideo
1794     /* XXX The brightness and contrast values should be read from environment
1795      * XXX variables... */
1796 #if 0
1797     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1798     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1799 #endif
1800 #endif
1801
1802 #ifdef MODULE_NAME_IS_x11
1803     /* Initialize structure */
1804     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1805
1806     /* Get screen depth */
1807     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1808                                                    p_vout->p_sys->i_screen );
1809     switch( p_vout->p_sys->i_screen_depth )
1810     {
1811     case 8:
1812         /*
1813          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1814          */
1815         xvisual_template.screen =   p_vout->p_sys->i_screen;
1816         xvisual_template.class =    DirectColor;
1817         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1818                                     VisualScreenMask | VisualClassMask,
1819                                     &xvisual_template, &i_count );
1820         if( p_xvisual == NULL )
1821         {
1822             msg_Err( p_vout, "no PseudoColor visual available" );
1823             return VLC_EGENERIC;
1824         }
1825         p_vout->p_sys->i_bytes_per_pixel = 1;
1826         p_vout->output.pf_setpalette = SetPalette;
1827         break;
1828     case 15:
1829     case 16:
1830     case 24:
1831     default:
1832         /*
1833          * Screen depth is higher than 8bpp. TrueColor visual is used.
1834          */
1835         xvisual_template.screen =   p_vout->p_sys->i_screen;
1836         xvisual_template.class =    TrueColor;
1837         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1838                                     VisualScreenMask | VisualClassMask,
1839                                     &xvisual_template, &i_count );
1840         if( p_xvisual == NULL )
1841         {
1842             msg_Err( p_vout, "no TrueColor visual available" );
1843             return VLC_EGENERIC;
1844         }
1845
1846         p_vout->output.i_rmask = p_xvisual->red_mask;
1847         p_vout->output.i_gmask = p_xvisual->green_mask;
1848         p_vout->output.i_bmask = p_xvisual->blue_mask;
1849
1850         /* There is no difference yet between 3 and 4 Bpp. The only way
1851          * to find the actual number of bytes per pixel is to list supported
1852          * pixmap formats. */
1853         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1854         p_vout->p_sys->i_bytes_per_pixel = 0;
1855
1856         for( ; i_count-- ; p_formats++ )
1857         {
1858             /* Under XFree4.0, the list contains pixmap formats available
1859              * through all video depths ; so we have to check against current
1860              * depth. */
1861             if( p_formats->depth == p_vout->p_sys->i_screen_depth )
1862             {
1863                 if( p_formats->bits_per_pixel / 8
1864                         > p_vout->p_sys->i_bytes_per_pixel )
1865                 {
1866                     p_vout->p_sys->i_bytes_per_pixel = p_formats->bits_per_pixel / 8;
1867                 }
1868             }
1869         }
1870         break;
1871     }
1872     p_vout->p_sys->p_visual = p_xvisual->visual;
1873     XFree( p_xvisual );
1874 #endif
1875
1876     return VLC_SUCCESS;
1877 }
1878
1879 #ifdef HAVE_SYS_SHM_H
1880 /*****************************************************************************
1881  * CreateShmImage: create an XImage or XvImage using shared memory extension
1882  *****************************************************************************
1883  * Prepare an XImage or XvImage for display function.
1884  * The order of the operations respects the recommandations of the mit-shm
1885  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1886  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1887  *****************************************************************************/
1888 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1889                                     Display* p_display, EXTRA_ARGS_SHM,
1890                                     int i_width, int i_height )
1891 {
1892     IMAGE_TYPE *p_image;
1893
1894     /* Create XImage / XvImage */
1895 #ifdef MODULE_NAME_IS_xvideo
1896     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1897                                 i_width, i_height, p_shm );
1898 #else
1899     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1900                                p_shm, i_width, i_height );
1901 #endif
1902     if( p_image == NULL )
1903     {
1904         msg_Err( p_vout, "image creation failed" );
1905         return NULL;
1906     }
1907
1908     /* Allocate shared memory segment - 0776 set the access permission
1909      * rights (like umask), they are not yet supported by all X servers */
1910     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1911     if( p_shm->shmid < 0 )
1912     {
1913         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1914                          strerror( errno ) );
1915         IMAGE_FREE( p_image );
1916         return NULL;
1917     }
1918
1919     /* Attach shared memory segment to process (read/write) */
1920     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1921     if(! p_shm->shmaddr )
1922     {
1923         msg_Err( p_vout, "cannot attach shared memory (%s)",
1924                          strerror(errno));
1925         IMAGE_FREE( p_image );
1926         shmctl( p_shm->shmid, IPC_RMID, 0 );
1927         return NULL;
1928     }
1929
1930     /* Read-only data. We won't be using XShmGetImage */
1931     p_shm->readOnly = True;
1932
1933     /* Attach shared memory segment to X server */
1934     if( XShmAttach( p_display, p_shm ) == False )
1935     {
1936         msg_Err( p_vout, "cannot attach shared memory to X server" );
1937         IMAGE_FREE( p_image );
1938         shmctl( p_shm->shmid, IPC_RMID, 0 );
1939         shmdt( p_shm->shmaddr );
1940         return NULL;
1941     }
1942
1943     /* Send image to X server. This instruction is required, since having
1944      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1945      * and remember NOT to use XFlush ! */
1946     XSync( p_display, False );
1947
1948 #if 0
1949     /* Mark the shm segment to be removed when there are no more
1950      * attachements, so it is automatic on process exit or after shmdt */
1951     shmctl( p_shm->shmid, IPC_RMID, 0 );
1952 #endif
1953
1954     return p_image;
1955 }
1956 #endif
1957
1958 /*****************************************************************************
1959  * CreateImage: create an XImage or XvImage
1960  *****************************************************************************
1961  * Create a simple image used as a buffer.
1962  *****************************************************************************/
1963 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
1964                                  Display *p_display, EXTRA_ARGS,
1965                                  int i_width, int i_height )
1966 {
1967     byte_t *    p_data;                           /* image data storage zone */
1968     IMAGE_TYPE *p_image;
1969 #ifdef MODULE_NAME_IS_x11
1970     int         i_quantum;                     /* XImage quantum (see below) */
1971     int         i_bytes_per_line;
1972 #endif
1973
1974     /* Allocate memory for image */
1975 #ifdef MODULE_NAME_IS_xvideo
1976     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1977 #else
1978     i_bytes_per_line = i_width * i_bytes_per_pixel;
1979     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1980 #endif
1981     if( !p_data )
1982     {
1983         msg_Err( p_vout, "out of memory" );
1984         return NULL;
1985     }
1986
1987 #ifdef MODULE_NAME_IS_x11
1988     /* Optimize the quantum of a scanline regarding its size - the quantum is
1989        a diviser of the number of bits between the start of two scanlines. */
1990     if( i_bytes_per_line & 0xf )
1991     {
1992         i_quantum = 0x8;
1993     }
1994     else if( i_bytes_per_line & 0x10 )
1995     {
1996         i_quantum = 0x10;
1997     }
1998     else
1999     {
2000         i_quantum = 0x20;
2001     }
2002 #endif
2003
2004     /* Create XImage. p_data will be automatically freed */
2005 #ifdef MODULE_NAME_IS_xvideo
2006     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2007                              p_data, i_width, i_height );
2008 #else
2009     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2010                             p_data, i_width, i_height, i_quantum, 0 );
2011 #endif
2012     if( p_image == NULL )
2013     {
2014         msg_Err( p_vout, "XCreateImage() failed" );
2015         free( p_data );
2016         return NULL;
2017     }
2018
2019     return p_image;
2020 }
2021
2022 #ifdef MODULE_NAME_IS_x11
2023 /*****************************************************************************
2024  * SetPalette: sets an 8 bpp palette
2025  *****************************************************************************
2026  * This function sets the palette given as an argument. It does not return
2027  * anything, but could later send information on which colors it was unable
2028  * to set.
2029  *****************************************************************************/
2030 static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
2031 {
2032     int i;
2033     XColor p_colors[255];
2034
2035     /* allocate palette */
2036     for( i = 0; i < 255; i++ )
2037     {
2038         /* kludge: colors are indexed reversely because color 255 seems
2039          * to be reserved for black even if we try to set it to white */
2040         p_colors[ i ].pixel = 255 - i;
2041         p_colors[ i ].pad   = 0;
2042         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2043         p_colors[ i ].red   = red[ 255 - i ];
2044         p_colors[ i ].blue  = blue[ 255 - i ];
2045         p_colors[ i ].green = green[ 255 - i ];
2046     }
2047
2048     XStoreColors( p_vout->p_sys->p_display,
2049                   p_vout->p_sys->colormap, p_colors, 255 );
2050 }
2051 #endif