f5f74f0ac3d8cd1272dd2679f2b9c23c0f8e0a91
[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 1.18 2003/05/25 20:16:26 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 #ifdef HAVE_XINERAMA
70 #   include <X11/extensions/Xinerama.h>
71 #endif
72
73 #include "xcommon.h"
74
75 /*****************************************************************************
76  * Local prototypes
77  *****************************************************************************/
78 int  E_(Activate)   ( vlc_object_t * );
79 void E_(Deactivate) ( vlc_object_t * );
80
81 static int  InitVideo      ( vout_thread_t * );
82 static void EndVideo       ( vout_thread_t * );
83 static void DisplayVideo   ( vout_thread_t *, picture_t * );
84 static int  ManageVideo    ( vout_thread_t * );
85
86 static int  InitDisplay    ( vout_thread_t * );
87
88 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
89 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
90
91 static int  NewPicture     ( vout_thread_t *, picture_t * );
92 static void FreePicture    ( vout_thread_t *, picture_t * );
93
94 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
95                                     Display *, EXTRA_ARGS, int, int );
96 #ifdef HAVE_SYS_SHM_H
97 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
98                                     Display *, EXTRA_ARGS_SHM, int, int );
99 #endif
100
101 static void ToggleFullScreen      ( vout_thread_t * );
102
103 static void EnableXScreenSaver    ( vout_thread_t * );
104 static void DisableXScreenSaver   ( vout_thread_t * );
105
106 static void CreateCursor   ( vout_thread_t * );
107 static void DestroyCursor  ( vout_thread_t * );
108 static void ToggleCursor   ( vout_thread_t * );
109
110 #ifdef MODULE_NAME_IS_xvideo
111 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
112 static void XVideoReleasePort( vout_thread_t *, int );
113 #endif
114
115 #ifdef MODULE_NAME_IS_x11
116 static void SetPalette     ( vout_thread_t *,
117                              uint16_t *, uint16_t *, uint16_t * );
118 #endif
119
120 /*****************************************************************************
121  * Activate: allocate X11 video thread output method
122  *****************************************************************************
123  * This function allocate and initialize a X11 vout method. It uses some of the
124  * vout properties to choose the window size, and change them according to the
125  * actual properties of the display.
126  *****************************************************************************/
127 int E_(Activate) ( vlc_object_t *p_this )
128 {
129     vout_thread_t *p_vout = (vout_thread_t *)p_this;
130     char *       psz_display;
131 #ifdef MODULE_NAME_IS_xvideo
132     char *       psz_chroma;
133     vlc_fourcc_t i_chroma = 0;
134     vlc_bool_t   b_chroma = 0;
135 #endif
136
137     p_vout->pf_init = InitVideo;
138     p_vout->pf_end = EndVideo;
139     p_vout->pf_manage = ManageVideo;
140     p_vout->pf_render = NULL;
141     p_vout->pf_display = DisplayVideo;
142
143     /* Allocate structure */
144     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
145     if( p_vout->p_sys == NULL )
146     {
147         msg_Err( p_vout, "out of memory" );
148         return VLC_ENOMEM;
149     }
150
151     /* Open display, using the "display" config variable or the DISPLAY
152      * environment variable */
153     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
154
155     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
156
157     if( p_vout->p_sys->p_display == NULL )                          /* error */
158     {
159         msg_Err( p_vout, "cannot open display %s",
160                          XDisplayName( psz_display ) );
161         free( p_vout->p_sys );
162         if( psz_display ) free( psz_display );
163         return VLC_EGENERIC;
164     }
165     if( psz_display ) free( psz_display );
166
167     /* Get a screen ID matching the XOpenDisplay return value */
168     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
169
170 #ifdef MODULE_NAME_IS_xvideo
171     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
172     if( psz_chroma )
173     {
174         if( strlen( psz_chroma ) >= 4 )
175         {
176             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
177             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
178             i_chroma |= (unsigned char)psz_chroma[2] << 16;
179             i_chroma |= (unsigned char)psz_chroma[3] << 24;
180
181             b_chroma = 1;
182         }
183
184         free( psz_chroma );
185     }
186
187     if( b_chroma )
188     {
189         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
190                  i_chroma, (char*)&i_chroma );
191     }
192     else
193     {
194         i_chroma = p_vout->render.i_chroma;
195     }
196
197     /* Check that we have access to an XVideo port providing this chroma */
198     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
199                                              &p_vout->output.i_chroma );
200     if( p_vout->p_sys->i_xvport < 0 )
201     {
202         /* If a specific chroma format was requested, then we don't try to
203          * be cleverer than the user. He knew pretty well what he wanted. */
204         if( b_chroma )
205         {
206             XCloseDisplay( p_vout->p_sys->p_display );
207             free( p_vout->p_sys );
208             return VLC_EGENERIC;
209         }
210
211         /* It failed, but it's not completely lost ! We try to open an
212          * XVideo port for an YUY2 picture. We'll need to do an YUV
213          * conversion, but at least it has got scaling. */
214         p_vout->p_sys->i_xvport =
215                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
216                                                &p_vout->output.i_chroma );
217         if( p_vout->p_sys->i_xvport < 0 )
218         {
219             /* It failed, but it's not completely lost ! We try to open an
220              * XVideo port for a simple 16bpp RGB picture. We'll need to do
221              * an YUV conversion, but at least it has got scaling. */
222             p_vout->p_sys->i_xvport =
223                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
224                                                    &p_vout->output.i_chroma );
225             if( p_vout->p_sys->i_xvport < 0 )
226             {
227                 XCloseDisplay( p_vout->p_sys->p_display );
228                 free( p_vout->p_sys );
229                 return VLC_EGENERIC;
230             }
231         }
232     }
233 #endif
234
235     /* Create blank cursor (for mouse cursor autohiding) */
236     p_vout->p_sys->i_time_mouse_last_moved = mdate();
237     p_vout->p_sys->b_mouse_pointer_visible = 1;
238     CreateCursor( p_vout );
239
240     /* Set main window's size */
241     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
242     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
243
244     /* Spawn base window - this window will include the video output window,
245      * but also command buttons, subtitles and other indicators */
246     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
247     {
248         msg_Err( p_vout, "cannot create X11 window" );
249         DestroyCursor( p_vout );
250         XCloseDisplay( p_vout->p_sys->p_display );
251         free( p_vout->p_sys );
252         return VLC_EGENERIC;
253     }
254
255     /* Open and initialize device. */
256     if( InitDisplay( p_vout ) )
257     {
258         msg_Err( p_vout, "cannot initialize X11 display" );
259         DestroyCursor( p_vout );
260         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
261         XCloseDisplay( p_vout->p_sys->p_display );
262         free( p_vout->p_sys );
263         return VLC_EGENERIC;
264     }
265
266     /* Disable screen saver */
267     DisableXScreenSaver( p_vout );
268
269     /* Misc init */
270     p_vout->p_sys->b_altfullscreen = 0;
271     p_vout->p_sys->i_time_button_last_pressed = 0;
272
273     return VLC_SUCCESS;
274 }
275
276 /*****************************************************************************
277  * Deactivate: destroy X11 video thread output method
278  *****************************************************************************
279  * Terminate an output method created by Open
280  *****************************************************************************/
281 void E_(Deactivate) ( vlc_object_t *p_this )
282 {
283     vout_thread_t *p_vout = (vout_thread_t *)p_this;
284
285     /* If the fullscreen window is still open, close it */
286     if( p_vout->b_fullscreen )
287     {
288         ToggleFullScreen( p_vout );
289     }
290
291     /* Restore cursor if it was blanked */
292     if( !p_vout->p_sys->b_mouse_pointer_visible )
293     {
294         ToggleCursor( p_vout );
295     }
296
297 #ifdef MODULE_NAME_IS_x11
298     /* Destroy colormap */
299     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
300     {
301         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
302     }
303 #else
304     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
305 #endif
306
307     DestroyCursor( p_vout );
308     EnableXScreenSaver( p_vout );
309     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
310
311     XCloseDisplay( p_vout->p_sys->p_display );
312
313     /* Destroy structure */
314     free( p_vout->p_sys );
315 }
316
317 /*****************************************************************************
318  * InitVideo: initialize X11 video thread output method
319  *****************************************************************************
320  * This function create the XImages needed by the output thread. It is called
321  * at the beginning of the thread, but also each time the window is resized.
322  *****************************************************************************/
323 static int InitVideo( vout_thread_t *p_vout )
324 {
325     int i_index;
326     picture_t *p_pic;
327
328     I_OUTPUTPICTURES = 0;
329
330 #ifdef MODULE_NAME_IS_xvideo
331     /* Initialize the output structure; we already found an XVideo port,
332      * and the corresponding chroma we will be using. Since we can
333      * arbitrary scale, stick to the coordinates and aspect. */
334     p_vout->output.i_width  = p_vout->render.i_width;
335     p_vout->output.i_height = p_vout->render.i_height;
336     p_vout->output.i_aspect = p_vout->render.i_aspect;
337
338     switch( p_vout->output.i_chroma )
339     {
340         case VLC_FOURCC('R','V','1','5'):
341             p_vout->output.i_rmask = 0x001f;
342             p_vout->output.i_gmask = 0x07e0;
343             p_vout->output.i_bmask = 0xf800;
344             break;
345         case VLC_FOURCC('R','V','1','6'):
346             p_vout->output.i_rmask = 0x001f;
347             p_vout->output.i_gmask = 0x03e0;
348             p_vout->output.i_bmask = 0x7c00;
349             break;
350     }
351
352 #else
353     /* Initialize the output structure: RGB with square pixels, whatever
354      * the input format is, since it's the only format we know */
355     switch( p_vout->p_sys->i_screen_depth )
356     {
357         case 8: /* FIXME: set the palette */
358             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
359         case 15:
360             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
361         case 16:
362             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
363         case 24:
364             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
365         case 32:
366             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
367         default:
368             msg_Err( p_vout, "unknown screen depth %i",
369                      p_vout->p_sys->i_screen_depth );
370             return VLC_SUCCESS;
371     }
372
373     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
374                        p_vout->p_sys->p_win->i_height,
375                        &i_index, &i_index,
376                        &p_vout->output.i_width, &p_vout->output.i_height );
377
378     /* Assume we have square pixels */
379     p_vout->output.i_aspect = p_vout->output.i_width
380                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
381 #endif
382
383     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
384     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
385     {
386         p_pic = NULL;
387
388         /* Find an empty picture slot */
389         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
390         {
391           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
392             {
393                 p_pic = p_vout->p_picture + i_index;
394                 break;
395             }
396         }
397
398         /* Allocate the picture */
399         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
400         {
401             break;
402         }
403
404         p_pic->i_status = DESTROYED_PICTURE;
405         p_pic->i_type   = DIRECT_PICTURE;
406
407         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
408
409         I_OUTPUTPICTURES++;
410     }
411
412     return VLC_SUCCESS;
413 }
414
415  /*****************************************************************************
416  * DisplayVideo: displays previously rendered output
417  *****************************************************************************
418  * This function sends the currently rendered image to X11 server.
419  * (The Xv extension takes care of "double-buffering".)
420  *****************************************************************************/
421 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
422 {
423     int i_width, i_height, i_x, i_y;
424
425     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
426                        p_vout->p_sys->p_win->i_height,
427                        &i_x, &i_y, &i_width, &i_height );
428
429 #ifdef HAVE_SYS_SHM_H
430     if( p_vout->p_sys->b_shm )
431     {
432         /* Display rendered image using shared memory extension */
433 #   ifdef MODULE_NAME_IS_xvideo
434         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
435                        p_vout->p_sys->p_win->video_window,
436                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
437                        0 /*src_x*/, 0 /*src_y*/,
438                        p_vout->output.i_width, p_vout->output.i_height,
439                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
440                        False /* Don't put True here or you'll waste your CPU */ );
441 #   else
442         XShmPutImage( p_vout->p_sys->p_display,
443                       p_vout->p_sys->p_win->video_window,
444                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
445                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
446                       p_vout->output.i_width, p_vout->output.i_height,
447                       False /* Don't put True here ! */ );
448 #   endif
449     }
450     else
451 #endif /* HAVE_SYS_SHM_H */
452     {
453         /* Use standard XPutImage -- this is gonna be slow ! */
454 #ifdef MODULE_NAME_IS_xvideo
455         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
456                     p_vout->p_sys->p_win->video_window,
457                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
458                     0 /*src_x*/, 0 /*src_y*/,
459                     p_vout->output.i_width, p_vout->output.i_height,
460                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
461 #else
462         XPutImage( p_vout->p_sys->p_display,
463                    p_vout->p_sys->p_win->video_window,
464                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
465                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
466                    p_vout->output.i_width, p_vout->output.i_height );
467 #endif
468     }
469
470     /* Make sure the command is sent now - do NOT use XFlush !*/
471     XSync( p_vout->p_sys->p_display, False );
472 }
473
474 /*****************************************************************************
475  * ManageVideo: handle X11 events
476  *****************************************************************************
477  * This function should be called regularly by video output thread. It manages
478  * X11 events and allows window resizing. It returns a non null value on
479  * error.
480  *****************************************************************************/
481 static int ManageVideo( vout_thread_t *p_vout )
482 {
483     XEvent      xevent;                                         /* X11 event */
484     char        i_key;                                    /* ISO Latin-1 key */
485     KeySym      x_key_symbol;
486     vlc_value_t val;
487
488     /* Handle X11 events: ConfigureNotify events are parsed to know if the
489      * output window's size changed, MapNotify and UnmapNotify to know if the
490      * window is mapped (and if the display is useful), and ClientMessages
491      * to intercept window destruction requests */
492
493     while( XCheckWindowEvent( p_vout->p_sys->p_display,
494                               p_vout->p_sys->p_win->base_window,
495                               StructureNotifyMask | KeyPressMask |
496                               ButtonPressMask | ButtonReleaseMask |
497                               PointerMotionMask | Button1MotionMask , &xevent )
498            == True )
499     {
500         /* ConfigureNotify event: prepare  */
501         if( xevent.type == ConfigureNotify )
502         {
503             if( (unsigned int)xevent.xconfigure.width
504                    != p_vout->p_sys->p_win->i_width
505               || (unsigned int)xevent.xconfigure.height
506                     != p_vout->p_sys->p_win->i_height )
507             {
508                 /* Update dimensions */
509                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
510                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
511                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
512             }
513         }
514         /* Keyboard event */
515         else if( xevent.type == KeyPress )
516         {
517             /* We may have keys like F1 trough F12, ESC ... */
518             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
519                                              xevent.xkey.keycode, 0 );
520             switch( (int)x_key_symbol )
521             {
522             case XK_Escape:
523                 if( p_vout->b_fullscreen )
524                 {
525                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
526                 }
527                 else
528                 {
529                     p_vout->p_vlc->b_die = 1;
530                 }
531                 break;
532             case XK_Menu:
533                 {
534                     intf_thread_t *p_intf;
535                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
536                                                       FIND_ANYWHERE );
537                     if( p_intf )
538                     {
539                         p_intf->b_menu_change = 1;
540                         vlc_object_release( p_intf );
541                     }
542                 }
543                 break;
544             case XK_Left:
545                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
546                 break;
547             case XK_Right:
548                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
549                 break;
550             case XK_Up:
551                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
552                 break;
553             case XK_Down:
554                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
555                 break;
556             case XK_Home:
557                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
558                 break;
559             case XK_End:
560                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
561                 break;
562             case XK_Page_Up:
563                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
564                 break;
565             case XK_Page_Down:
566                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
567                 break;
568             case XK_space:
569                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
570                 break;
571
572             default:
573                 /* "Normal Keys"
574                  * The reason why I use this instead of XK_0 is that
575                  * with XLookupString, we don't have to care about
576                  * keymaps. */
577
578                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
579                 {
580                     /* FIXME: handle stuff here */
581                     switch( i_key )
582                     {
583                     case 'q':
584                     case 'Q':
585                         p_vout->p_vlc->b_die = 1;
586                         break;
587                     case 'f':
588                     case 'F':
589                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
590                         break;
591
592                     default:
593                         break;
594                     }
595                 }
596                 break;
597             }
598         }
599         /* Mouse click */
600         else if( xevent.type == ButtonPress )
601         {
602             switch( ((XButtonEvent *)&xevent)->button )
603             {
604                 case Button1:
605                     var_Get( p_vout, "mouse-button-down", &val );
606                     val.i_int |= 1;
607                     var_Set( p_vout, "mouse-button-down", val );
608                     
609                     /* detect double-clicks */
610                     if( ( ((XButtonEvent *)&xevent)->time -
611                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
612                     {
613                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
614                     }
615
616                     p_vout->p_sys->i_time_button_last_pressed =
617                         ((XButtonEvent *)&xevent)->time;
618                     break;
619                 case Button2:
620                     var_Get( p_vout, "mouse-button-down", &val );
621                     val.i_int |= 2;
622                     var_Set( p_vout, "mouse-button-down", val );
623                     break;
624                 
625                 case Button3:
626                     var_Get( p_vout, "mouse-button-down", &val );
627                     val.i_int |= 4;
628                     var_Set( p_vout, "mouse-button-down", val );
629                     break;
630                 
631                 case Button4:
632                     var_Get( p_vout, "mouse-button-down", &val );
633                     val.i_int |= 8;
634                     var_Set( p_vout, "mouse-button-down", val );
635                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
636                     break;
637
638                 case Button5:
639                     var_Get( p_vout, "mouse-button-down", &val );
640                     val.i_int |= 16;
641                     var_Set( p_vout, "mouse-button-down", val );
642                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
643                     break;
644             }
645         }
646         /* Mouse release */
647         else if( xevent.type == ButtonRelease )
648         {
649             switch( ((XButtonEvent *)&xevent)->button )
650             {
651                 case Button1:
652                     var_Get( p_vout, "mouse-button-down", &val );
653                     val.i_int &= ~1;
654                     var_Set( p_vout, "mouse-button-down", val );
655
656                     val.b_bool = VLC_TRUE;
657                     var_Set( p_vout, "mouse-clicked", val );
658                     break;
659                     
660                 case Button2:
661                     var_Get( p_vout, "mouse-button-down", &val );
662                     val.i_int &= ~2;
663                     var_Set( p_vout, "mouse-button-down", val );
664                     break;
665                     
666                 case Button3:
667                     {
668                         intf_thread_t *p_intf;
669                         var_Get( p_vout, "mouse-button-down", &val );
670                         val.i_int &= ~4;
671                         var_Set( p_vout, "mouse-button-down", val );
672                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
673                                                           FIND_ANYWHERE );
674                         if( p_intf )
675                         {
676                             p_intf->b_menu_change = 1;
677                             vlc_object_release( p_intf );
678                         }
679                     }
680                     break;
681
682                 case Button4:
683                     var_Get( p_vout, "mouse-button-down", &val );
684                     val.i_int &= ~8;
685                     var_Set( p_vout, "mouse-button-down", val );
686                     break;
687
688                 case Button5:
689                     var_Get( p_vout, "mouse-button-down", &val );
690                     val.i_int &= ~16;
691                     var_Set( p_vout, "mouse-button-down", val );
692                     break;
693                     
694             }
695         }
696         /* Mouse move */
697         else if( xevent.type == MotionNotify )
698         {
699             int i_width, i_height, i_x, i_y;
700             vlc_value_t val;
701
702             /* somewhat different use for vout_PlacePicture:
703              * here the values are needed to give to mouse coordinates
704              * in the original picture space */
705             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
706                                p_vout->p_sys->p_win->i_height,
707                                &i_x, &i_y, &i_width, &i_height );
708
709             val.i_int = ( xevent.xmotion.x - i_x )
710                          * p_vout->render.i_width / i_width;
711             var_Set( p_vout, "mouse-x", val );
712             val.i_int = ( xevent.xmotion.y - i_y )
713                          * p_vout->render.i_height / i_height;
714             var_Set( p_vout, "mouse-y", val );
715
716             val.b_bool = VLC_TRUE;
717             var_Set( p_vout, "mouse-moved", val );
718
719             p_vout->p_sys->i_time_mouse_last_moved = mdate();
720             if( ! p_vout->p_sys->b_mouse_pointer_visible )
721             {
722                 ToggleCursor( p_vout );
723             }
724         }
725         else if( xevent.type == ReparentNotify /* XXX: why do we get this? */
726                   || xevent.type == MapNotify
727                   || xevent.type == UnmapNotify )
728         {
729             /* Ignore these events */
730         }
731         else /* Other events */
732         {
733             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
734         }
735     }
736
737     /* Handle events for video output sub-window */
738     while( XCheckWindowEvent( p_vout->p_sys->p_display,
739                               p_vout->p_sys->p_win->video_window,
740                               ExposureMask, &xevent ) == True )
741     {
742         /* Window exposed (only handled if stream playback is paused) */
743         if( xevent.type == Expose )
744         {
745             if( ((XExposeEvent *)&xevent)->count == 0 )
746             {
747                 /* (if this is the last a collection of expose events...) */
748 #if 0
749                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
750                 {
751                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
752                                                    ->stream.control.i_status )
753                     {
754                         /* XVideoDisplay( p_vout )*/;
755                     }
756                 }
757 #endif
758             }
759         }
760     }
761
762     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
763      * are handled - according to the man pages, the format is always 32
764      * in this case */
765     while( XCheckTypedEvent( p_vout->p_sys->p_display,
766                              ClientMessage, &xevent ) )
767     {
768         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
769                && ((Atom)xevent.xclient.data.l[0]
770                      == p_vout->p_sys->p_win->wm_delete_window ) )
771         {
772             p_vout->p_vlc->b_die = 1;
773         }
774     }
775
776     /*
777      * Fullscreen Change
778      */
779     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
780     {
781         vlc_value_t val;
782
783         /* Update the object variable and trigger callback */
784         val.b_bool = !p_vout->b_fullscreen;
785         var_Set( p_vout, "fullscreen", val );
786
787         ToggleFullScreen( p_vout );
788         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
789     }
790
791     /*
792      * Size change
793      *
794      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
795      *  the size flag inside the fullscreen routine)
796      */
797     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
798     {
799         int i_width, i_height, i_x, i_y;
800
801         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
802
803 #ifdef MODULE_NAME_IS_x11
804         /* We need to signal the vout thread about the size change because it
805          * is doing the rescaling */
806         p_vout->i_changes |= VOUT_SIZE_CHANGE;
807 #endif
808
809         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
810                            p_vout->p_sys->p_win->i_height,
811                            &i_x, &i_y, &i_width, &i_height );
812
813         XResizeWindow( p_vout->p_sys->p_display,
814                        p_vout->p_sys->p_win->video_window, i_width, i_height );
815
816         XMoveWindow( p_vout->p_sys->p_display,
817                      p_vout->p_sys->p_win->video_window, i_x, i_y );
818     }
819
820     /* Autohide Cursour */
821     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
822     {
823         /* Hide the mouse automatically */
824         if( p_vout->p_sys->b_mouse_pointer_visible )
825         {
826             ToggleCursor( p_vout );
827         }
828     }
829
830     return 0;
831 }
832
833 /*****************************************************************************
834  * EndVideo: terminate X11 video thread output method
835  *****************************************************************************
836  * Destroy the X11 XImages created by Init. It is called at the end of
837  * the thread, but also each time the window is resized.
838  *****************************************************************************/
839 static void EndVideo( vout_thread_t *p_vout )
840 {
841     int i_index;
842
843     /* Free the direct buffers we allocated */
844     for( i_index = I_OUTPUTPICTURES ; i_index ; )
845     {
846         i_index--;
847         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
848     }
849 }
850
851 /* following functions are local */
852
853 /*****************************************************************************
854  * CreateWindow: open and set-up X11 main window
855  *****************************************************************************/
856 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
857 {
858     XSizeHints              xsize_hints;
859     XSetWindowAttributes    xwindow_attributes;
860     XGCValues               xgcvalues;
861     XEvent                  xevent;
862
863     vlc_bool_t              b_expose;
864     vlc_bool_t              b_configure_notify;
865     vlc_bool_t              b_map_notify;
866
867     vlc_value_t             val;
868     long long int           i_drawable;
869
870     /* Prepare window manager hints and properties */
871     xsize_hints.base_width          = p_win->i_width;
872     xsize_hints.base_height         = p_win->i_height;
873     xsize_hints.flags               = PSize;
874     p_win->wm_protocols =
875              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
876     p_win->wm_delete_window =
877              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
878
879     /* Prepare window attributes */
880     xwindow_attributes.backing_store = Always;       /* save the hidden part */
881     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
882                                                      p_vout->p_sys->i_screen);
883     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
884
885     /* Check whether someone provided us with a window ID */
886     var_Get( p_vout->p_vlc, "drawable", &val );
887     i_drawable = p_vout->b_fullscreen ? 0 : val.i_int;
888
889     if( !i_drawable )
890     {
891         p_win->b_owned = VLC_TRUE;
892
893         /* Create the window and set hints - the window must receive
894          * ConfigureNotify events, and until it is displayed, Expose and
895          * MapNotify events. */
896
897         p_win->base_window =
898             XCreateWindow( p_vout->p_sys->p_display,
899                            DefaultRootWindow( p_vout->p_sys->p_display ),
900                            0, 0,
901                            p_win->i_width, p_win->i_height,
902                            0,
903                            0, InputOutput, 0,
904                            CWBackingStore | CWBackPixel | CWEventMask,
905                            &xwindow_attributes );
906
907         if( !p_vout->b_fullscreen )
908         {
909             /* Set window manager hints and properties: size hints, command,
910              * window's name, and accepted protocols */
911             XSetWMNormalHints( p_vout->p_sys->p_display,
912                                p_win->base_window, &xsize_hints );
913             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
914                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
915
916             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
917 #ifdef MODULE_NAME_IS_x11
918                         VOUT_TITLE " (X11 output)"
919 #else
920                         VOUT_TITLE " (XVideo output)"
921 #endif
922                       );
923         }
924     }
925     else
926     {
927         p_win->b_owned = VLC_FALSE;
928         p_win->base_window = i_drawable;
929
930         XChangeWindowAttributes( p_vout->p_sys->p_display,
931                                  p_win->base_window,
932                                  CWBackingStore | CWBackPixel | CWEventMask,
933                                  &xwindow_attributes );
934     }
935
936     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
937         || (p_win->wm_delete_window == None)
938         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
939                              &p_win->wm_delete_window, 1 ) )
940     {
941         /* WM_DELETE_WINDOW is not supported by window manager */
942         msg_Warn( p_vout, "missing or bad window manager" );
943     }
944
945     /* Creation of a graphic context that doesn't generate a GraphicsExpose
946      * event when using functions like XCopyArea */
947     xgcvalues.graphics_exposures = False;
948     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
949                            p_win->base_window,
950                            GCGraphicsExposures, &xgcvalues );
951
952     if( p_win->b_owned )
953     {
954         /* Send orders to server, and wait until window is displayed - three
955          * events must be received: a MapNotify event, an Expose event allowing
956          * drawing in the window, and a ConfigureNotify to get the window
957          * dimensions. Once those events have been received, only
958          * ConfigureNotify events need to be received. */
959         b_expose = 0;
960         b_configure_notify = 0;
961         b_map_notify = 0;
962         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
963         do
964         {
965             XNextEvent( p_vout->p_sys->p_display, &xevent);
966             if( (xevent.type == Expose)
967                 && (xevent.xexpose.window == p_win->base_window) )
968             {
969                 b_expose = 1;
970             }
971             else if( (xevent.type == MapNotify)
972                      && (xevent.xmap.window == p_win->base_window) )
973             {
974                 b_map_notify = 1;
975             }
976             else if( (xevent.type == ConfigureNotify)
977                      && (xevent.xconfigure.window == p_win->base_window) )
978             {
979                 b_configure_notify = 1;
980                 p_win->i_width = xevent.xconfigure.width;
981                 p_win->i_height = xevent.xconfigure.height;
982             }
983         } while( !( b_expose && b_configure_notify && b_map_notify ) );
984     }
985     else
986     {
987         /* Get the window's geometry information */
988         Window dummy1;
989         unsigned int dummy2, dummy3;
990         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
991                       &dummy1, &dummy2, &dummy3,
992                       &p_win->i_width,
993                       &p_win->i_height,
994                       &dummy2, &dummy3 );
995     }
996
997     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
998                   StructureNotifyMask | KeyPressMask |
999                   ButtonPressMask | ButtonReleaseMask |
1000                   PointerMotionMask );
1001
1002 #ifdef MODULE_NAME_IS_x11
1003     if( p_win->b_owned &&
1004          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
1005     {
1006         /* Allocate a new palette */
1007         p_vout->p_sys->colormap =
1008             XCreateColormap( p_vout->p_sys->p_display,
1009                              DefaultRootWindow( p_vout->p_sys->p_display ),
1010                              DefaultVisual( p_vout->p_sys->p_display,
1011                                             p_vout->p_sys->i_screen ),
1012                              AllocAll );
1013
1014         xwindow_attributes.colormap = p_vout->p_sys->colormap;
1015         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
1016                                  CWColormap, &xwindow_attributes );
1017     }
1018 #endif
1019
1020     /* Create video output sub-window. */
1021     p_win->video_window =  XCreateSimpleWindow(
1022                                       p_vout->p_sys->p_display,
1023                                       p_win->base_window, 0, 0,
1024                                       p_win->i_width, p_win->i_height,
1025                                       0,
1026                                       BlackPixel( p_vout->p_sys->p_display,
1027                                                   p_vout->p_sys->i_screen ),
1028                                       WhitePixel( p_vout->p_sys->p_display,
1029                                                   p_vout->p_sys->i_screen ) );
1030
1031     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
1032                           BlackPixel( p_vout->p_sys->p_display,
1033                                       p_vout->p_sys->i_screen ) );
1034
1035     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
1036     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
1037                   ExposureMask );
1038
1039     /* make sure the video window will be centered in the next ManageVideo() */
1040     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1041
1042     /* If the cursor was formerly blank than blank it again */
1043     if( !p_vout->p_sys->b_mouse_pointer_visible )
1044     {
1045         ToggleCursor( p_vout );
1046         ToggleCursor( p_vout );
1047     }
1048
1049     /* Do NOT use XFlush here ! */
1050     XSync( p_vout->p_sys->p_display, False );
1051
1052     /* At this stage, the window is open, displayed, and ready to
1053      * receive data */
1054     p_vout->p_sys->p_win = p_win;
1055
1056     return VLC_SUCCESS;
1057 }
1058
1059 /*****************************************************************************
1060  * DestroyWindow: destroy the window
1061  *****************************************************************************
1062  *
1063  *****************************************************************************/
1064 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1065 {
1066     /* Do NOT use XFlush here ! */
1067     XSync( p_vout->p_sys->p_display, False );
1068
1069     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1070     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1071
1072     if( p_win->b_owned )
1073     {
1074         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1075         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1076     }
1077 }
1078
1079 /*****************************************************************************
1080  * NewPicture: allocate a picture
1081  *****************************************************************************
1082  * Returns 0 on success, -1 otherwise
1083  *****************************************************************************/
1084 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1085 {
1086     /* We know the chroma, allocate a buffer which will be used
1087      * directly by the decoder */
1088     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1089
1090     if( p_pic->p_sys == NULL )
1091     {
1092         return -1;
1093     }
1094
1095 #ifdef HAVE_SYS_SHM_H
1096     if( p_vout->p_sys->b_shm )
1097     {
1098         /* Create image using XShm extension */
1099         p_pic->p_sys->p_image =
1100             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1101 #   ifdef MODULE_NAME_IS_xvideo
1102                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1103 #   else
1104                             p_vout->p_sys->p_visual,
1105                             p_vout->p_sys->i_screen_depth,
1106 #   endif
1107                             &p_pic->p_sys->shminfo,
1108                             p_vout->output.i_width, p_vout->output.i_height );
1109     }
1110     else
1111 #endif /* HAVE_SYS_SHM_H */
1112     {
1113         /* Create image without XShm extension */
1114         p_pic->p_sys->p_image =
1115             CreateImage( p_vout, p_vout->p_sys->p_display,
1116 #ifdef MODULE_NAME_IS_xvideo
1117                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1118 #else
1119                          p_vout->p_sys->p_visual,
1120                          p_vout->p_sys->i_screen_depth,
1121                          p_vout->p_sys->i_bytes_per_pixel,
1122 #endif
1123                          p_vout->output.i_width, p_vout->output.i_height );
1124     }
1125
1126     if( p_pic->p_sys->p_image == NULL )
1127     {
1128         free( p_pic->p_sys );
1129         return -1;
1130     }
1131
1132     switch( p_vout->output.i_chroma )
1133     {
1134 #ifdef MODULE_NAME_IS_xvideo
1135         case VLC_FOURCC('I','4','2','0'):
1136
1137             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1138                                + p_pic->p_sys->p_image->offsets[0];
1139             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1140             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1141             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1142             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1143
1144             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1145                                + p_pic->p_sys->p_image->offsets[1];
1146             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1147             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1148             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1149             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1150
1151             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1152                                + p_pic->p_sys->p_image->offsets[2];
1153             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1154             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1155             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1156             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1157
1158             p_pic->i_planes = 3;
1159             break;
1160
1161         case VLC_FOURCC('Y','V','1','2'):
1162
1163             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1164                                + p_pic->p_sys->p_image->offsets[0];
1165             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1166             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1167             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1168             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1169             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1170
1171             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1172                                + p_pic->p_sys->p_image->offsets[2];
1173             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1174             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1175             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1176             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1177
1178             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1179                                + p_pic->p_sys->p_image->offsets[1];
1180             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1181             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1182             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1183             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1184
1185             p_pic->i_planes = 3;
1186             break;
1187
1188         case VLC_FOURCC('Y','2','1','1'):
1189
1190             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1191                                   + p_pic->p_sys->p_image->offsets[0];
1192             p_pic->p->i_lines = p_vout->output.i_height;
1193             /* XXX: this just looks so plain wrong... check it out ! */
1194             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1195             p_pic->p->i_pixel_pitch = 4;
1196             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1197
1198             p_pic->i_planes = 1;
1199             break;
1200
1201         case VLC_FOURCC('Y','U','Y','2'):
1202         case VLC_FOURCC('U','Y','V','Y'):
1203
1204             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1205                                   + p_pic->p_sys->p_image->offsets[0];
1206             p_pic->p->i_lines = p_vout->output.i_height;
1207             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1208             p_pic->p->i_pixel_pitch = 4;
1209             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1210
1211             p_pic->i_planes = 1;
1212             break;
1213
1214         case VLC_FOURCC('R','V','1','5'):
1215
1216             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1217                                   + p_pic->p_sys->p_image->offsets[0];
1218             p_pic->p->i_lines = p_vout->output.i_height;
1219             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1220             p_pic->p->i_pixel_pitch = 2;
1221             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1222
1223             p_pic->i_planes = 1;
1224             break;
1225
1226         case VLC_FOURCC('R','V','1','6'):
1227
1228             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1229                                   + p_pic->p_sys->p_image->offsets[0];
1230             p_pic->p->i_lines = p_vout->output.i_height;
1231             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1232             p_pic->p->i_pixel_pitch = 2;
1233             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1234
1235             p_pic->i_planes = 1;
1236             break;
1237
1238 #else
1239         case VLC_FOURCC('R','G','B','2'):
1240
1241             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1242                                   + p_pic->p_sys->p_image->xoffset;
1243             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1244             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1245             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1246             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1247
1248             p_pic->i_planes = 1;
1249
1250             break;
1251
1252         case VLC_FOURCC('R','V','1','6'):
1253         case VLC_FOURCC('R','V','1','5'):
1254
1255             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1256                                   + p_pic->p_sys->p_image->xoffset;
1257             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1258             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1259             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1260             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1261
1262             p_pic->i_planes = 1;
1263
1264             break;
1265
1266         case VLC_FOURCC('R','V','3','2'):
1267         case VLC_FOURCC('R','V','2','4'):
1268
1269             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1270                                   + p_pic->p_sys->p_image->xoffset;
1271             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1272             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1273             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1274             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1275
1276             p_pic->i_planes = 1;
1277
1278             break;
1279 #endif
1280
1281         default:
1282             /* Unknown chroma, tell the guy to get lost */
1283             IMAGE_FREE( p_pic->p_sys->p_image );
1284             free( p_pic->p_sys );
1285             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1286                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1287             p_pic->i_planes = 0;
1288             return -1;
1289     }
1290
1291     return 0;
1292 }
1293
1294 /*****************************************************************************
1295  * FreePicture: destroy a picture allocated with NewPicture
1296  *****************************************************************************
1297  * Destroy XImage AND associated data. If using Shm, detach shared memory
1298  * segment from server and process, then free it. The XDestroyImage manpage
1299  * says that both the image structure _and_ the data pointed to by the
1300  * image structure are freed, so no need to free p_image->data.
1301  *****************************************************************************/
1302 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1303 {
1304     /* The order of operations is correct */
1305 #ifdef HAVE_SYS_SHM_H
1306     if( p_vout->p_sys->b_shm )
1307     {
1308         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1309         IMAGE_FREE( p_pic->p_sys->p_image );
1310
1311         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1312         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1313         {
1314             msg_Err( p_vout, "cannot detach shared memory (%s)",
1315                              strerror(errno) );
1316         }
1317     }
1318     else
1319 #endif
1320     {
1321         IMAGE_FREE( p_pic->p_sys->p_image );
1322     }
1323
1324     /* Do NOT use XFlush here ! */
1325     XSync( p_vout->p_sys->p_display, False );
1326
1327     free( p_pic->p_sys );
1328 }
1329
1330 /*****************************************************************************
1331  * ToggleFullScreen: Enable or disable full screen mode
1332  *****************************************************************************
1333  * This function will switch between fullscreen and window mode.
1334  *****************************************************************************/
1335 static void ToggleFullScreen ( vout_thread_t *p_vout )
1336 {
1337     Atom prop;
1338     XEvent xevent;
1339     mwmhints_t mwmhints;
1340     XSetWindowAttributes attributes;
1341
1342 #ifdef HAVE_XINERAMA
1343     int i_d1, i_d2;
1344 #endif
1345
1346     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1347
1348     if( p_vout->b_fullscreen )
1349     {
1350         msg_Dbg( p_vout, "entering fullscreen mode" );
1351
1352         p_vout->p_sys->b_altfullscreen =
1353             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1354
1355         if( p_vout->p_sys->p_win->b_owned )
1356         {
1357             XUnmapWindow( p_vout->p_sys->p_display,
1358                           p_vout->p_sys->p_win->base_window);
1359         }
1360
1361         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1362
1363         /* fullscreen window size and position */
1364         p_vout->p_sys->p_win->i_width =
1365             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1366         p_vout->p_sys->p_win->i_height =
1367             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1368
1369         CreateWindow( p_vout, p_vout->p_sys->p_win );
1370
1371         /* To my knowledge there are two ways to create a borderless window.
1372          * There's the generic way which is to tell x to bypass the window
1373          * manager, but this creates problems with the focus of other
1374          * applications.
1375          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1376          * luckily seems to be supported by most window managers. */
1377         if( !p_vout->p_sys->b_altfullscreen )
1378         {
1379             mwmhints.flags = MWM_HINTS_DECORATIONS;
1380             mwmhints.decorations = False;
1381
1382             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1383                                 False );
1384             XChangeProperty( p_vout->p_sys->p_display,
1385                              p_vout->p_sys->p_win->base_window,
1386                              prop, prop, 32, PropModeReplace,
1387                              (unsigned char *)&mwmhints,
1388                              PROP_MWM_HINTS_ELEMENTS );
1389         }
1390         else
1391         {
1392             /* brute force way to remove decorations */
1393             attributes.override_redirect = True;
1394             XChangeWindowAttributes( p_vout->p_sys->p_display,
1395                                      p_vout->p_sys->p_win->base_window,
1396                                      CWOverrideRedirect,
1397                                      &attributes);
1398         }
1399
1400         /* Make sure the change is effective */
1401         XReparentWindow( p_vout->p_sys->p_display,
1402                          p_vout->p_sys->p_win->base_window,
1403                          DefaultRootWindow( p_vout->p_sys->p_display ),
1404                          0, 0 );
1405
1406         /* fullscreen window size and position */
1407         p_vout->p_sys->p_win->i_width =
1408             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1409         p_vout->p_sys->p_win->i_height =
1410             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1411
1412         p_vout->p_sys->p_win->i_x = 0;
1413         p_vout->p_sys->p_win->i_y = 0;
1414
1415 #ifdef HAVE_XINERAMA
1416         if( XineramaQueryExtension( p_vout->p_sys->p_display, &i_d1, &i_d2 ) &&
1417             XineramaIsActive( p_vout->p_sys->p_display ) )
1418         {
1419             XineramaScreenInfo *screens;   /* infos for xinerama */
1420             int i_num_screens;
1421
1422             msg_Dbg( p_vout, "Using XFree Xinerama extension");
1423
1424 #define SCREEN p_vout->p_sys->p_win->i_screen
1425
1426             /* Get Informations about Xinerama (num of screens) */
1427             screens = XineramaQueryScreens( p_vout->p_sys->p_display,
1428                                             &i_num_screens );
1429
1430             if( !SCREEN )
1431                 SCREEN = config_GetInt( p_vout,
1432                                         MODULE_STRING "-xineramascreen" );
1433
1434             /* just check that user has entered a good value */
1435             if( SCREEN >= i_num_screens || SCREEN < 0 )
1436             {
1437                 msg_Dbg( p_vout, "requested screen number invalid" );
1438                 SCREEN = 0;
1439             }
1440
1441             /* Get the X/Y upper left corner coordinate of the above screen */
1442             p_vout->p_sys->p_win->i_x = screens[SCREEN].x_org;
1443             p_vout->p_sys->p_win->i_y = screens[SCREEN].y_org;
1444
1445             /* Set the Height/width to the screen resolution */
1446             p_vout->p_sys->p_win->i_width = screens[SCREEN].width;
1447             p_vout->p_sys->p_win->i_height = screens[SCREEN].height;
1448
1449             XFree(screens);
1450
1451 #undef SCREEN
1452
1453         }
1454 #endif
1455
1456         XMoveResizeWindow( p_vout->p_sys->p_display,
1457                            p_vout->p_sys->p_win->base_window,
1458                            p_vout->p_sys->p_win->i_x,
1459                            p_vout->p_sys->p_win->i_y,
1460                            p_vout->p_sys->p_win->i_width,
1461                            p_vout->p_sys->p_win->i_height );
1462     }
1463     else
1464     {
1465         msg_Dbg( p_vout, "leaving fullscreen mode" );
1466         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1467         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1468
1469         if( p_vout->p_sys->p_win->b_owned )
1470         {
1471             XMapWindow( p_vout->p_sys->p_display,
1472                         p_vout->p_sys->p_win->base_window);
1473         }
1474     }
1475
1476     /* Unfortunately, using XSync() here is not enough to ensure the
1477      * window has already been mapped because the XMapWindow() request
1478      * has not necessarily been sent directly to our window (remember,
1479      * the call is first redirected to the window manager) */
1480     if( p_vout->p_sys->p_win->b_owned )
1481     {
1482         do
1483         {
1484             XWindowEvent( p_vout->p_sys->p_display,
1485                           p_vout->p_sys->p_win->base_window,
1486                           StructureNotifyMask, &xevent );
1487         } while( xevent.type != MapNotify );
1488     }
1489     else
1490     {
1491         XSync( p_vout->p_sys->p_display, False );
1492     }
1493
1494     /* Becareful, this can generate a BadMatch error if the window is not
1495      * already mapped by the server (see above) */
1496     XSetInputFocus(p_vout->p_sys->p_display,
1497                    p_vout->p_sys->p_win->base_window,
1498                    RevertToParent,
1499                    CurrentTime);
1500
1501     /* signal that the size needs to be updated */
1502     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1503 }
1504
1505 /*****************************************************************************
1506  * EnableXScreenSaver: enable screen saver
1507  *****************************************************************************
1508  * This function enables the screen saver on a display after it has been
1509  * disabled by XDisableScreenSaver.
1510  * FIXME: what happens if multiple vlc sessions are running at the same
1511  *        time ???
1512  *****************************************************************************/
1513 static void EnableXScreenSaver( vout_thread_t *p_vout )
1514 {
1515 #ifdef DPMSINFO_IN_DPMS_H
1516     int dummy;
1517 #endif
1518
1519     if( p_vout->p_sys->i_ss_timeout )
1520     {
1521         XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1522                          p_vout->p_sys->i_ss_interval,
1523                          p_vout->p_sys->i_ss_blanking,
1524                          p_vout->p_sys->i_ss_exposure );
1525     }
1526
1527     /* Restore DPMS settings */
1528 #ifdef DPMSINFO_IN_DPMS_H
1529     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1530     {
1531         if( p_vout->p_sys->b_ss_dpms )
1532         {
1533             DPMSEnable( p_vout->p_sys->p_display );
1534         }
1535     }
1536 #endif
1537 }
1538
1539 /*****************************************************************************
1540  * DisableXScreenSaver: disable screen saver
1541  *****************************************************************************
1542  * See XEnableXScreenSaver
1543  *****************************************************************************/
1544 static void DisableXScreenSaver( vout_thread_t *p_vout )
1545 {
1546 #ifdef DPMSINFO_IN_DPMS_H
1547     int dummy;
1548 #endif
1549
1550     /* Save screen saver informations */
1551     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1552                      &p_vout->p_sys->i_ss_interval,
1553                      &p_vout->p_sys->i_ss_blanking,
1554                      &p_vout->p_sys->i_ss_exposure );
1555
1556     /* Disable screen saver */
1557     if( p_vout->p_sys->i_ss_timeout )
1558     {
1559         XSetScreenSaver( p_vout->p_sys->p_display, 0,
1560                          p_vout->p_sys->i_ss_interval,
1561                          p_vout->p_sys->i_ss_blanking,
1562                          p_vout->p_sys->i_ss_exposure );
1563     }
1564
1565     /* Disable DPMS */
1566 #ifdef DPMSINFO_IN_DPMS_H
1567     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1568     {
1569         CARD16 unused;
1570         /* Save DPMS current state */
1571         DPMSInfo( p_vout->p_sys->p_display, &unused,
1572                   &p_vout->p_sys->b_ss_dpms );
1573         DPMSDisable( p_vout->p_sys->p_display );
1574    }
1575 #endif
1576 }
1577
1578 /*****************************************************************************
1579  * CreateCursor: create a blank mouse pointer
1580  *****************************************************************************/
1581 static void CreateCursor( vout_thread_t *p_vout )
1582 {
1583     XColor cursor_color;
1584
1585     p_vout->p_sys->cursor_pixmap =
1586         XCreatePixmap( p_vout->p_sys->p_display,
1587                        DefaultRootWindow( p_vout->p_sys->p_display ),
1588                        1, 1, 1 );
1589
1590     XParseColor( p_vout->p_sys->p_display,
1591                  XCreateColormap( p_vout->p_sys->p_display,
1592                                   DefaultRootWindow(
1593                                                     p_vout->p_sys->p_display ),
1594                                   DefaultVisual(
1595                                                 p_vout->p_sys->p_display,
1596                                                 p_vout->p_sys->i_screen ),
1597                                   AllocNone ),
1598                  "black", &cursor_color );
1599
1600     p_vout->p_sys->blank_cursor =
1601         XCreatePixmapCursor( p_vout->p_sys->p_display,
1602                              p_vout->p_sys->cursor_pixmap,
1603                              p_vout->p_sys->cursor_pixmap,
1604                              &cursor_color, &cursor_color, 1, 1 );
1605 }
1606
1607 /*****************************************************************************
1608  * DestroyCursor: destroy the blank mouse pointer
1609  *****************************************************************************/
1610 static void DestroyCursor( vout_thread_t *p_vout )
1611 {
1612     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1613 }
1614
1615 /*****************************************************************************
1616  * ToggleCursor: hide or show the mouse pointer
1617  *****************************************************************************
1618  * This function hides the X pointer if it is visible by setting the pointer
1619  * sprite to a blank one. To show it again, we disable the sprite.
1620  *****************************************************************************/
1621 static void ToggleCursor( vout_thread_t *p_vout )
1622 {
1623     if( p_vout->p_sys->b_mouse_pointer_visible )
1624     {
1625         XDefineCursor( p_vout->p_sys->p_display,
1626                        p_vout->p_sys->p_win->base_window,
1627                        p_vout->p_sys->blank_cursor );
1628         p_vout->p_sys->b_mouse_pointer_visible = 0;
1629     }
1630     else
1631     {
1632         XUndefineCursor( p_vout->p_sys->p_display,
1633                          p_vout->p_sys->p_win->base_window );
1634         p_vout->p_sys->b_mouse_pointer_visible = 1;
1635     }
1636 }
1637
1638 #ifdef MODULE_NAME_IS_xvideo
1639 /*****************************************************************************
1640  * XVideoGetPort: get YUV12 port
1641  *****************************************************************************/
1642 static int XVideoGetPort( vout_thread_t *p_vout,
1643                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1644 {
1645     XvAdaptorInfo *p_adaptor;
1646     unsigned int i;
1647     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1648     int i_selected_port;
1649
1650     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1651     {
1652         case Success:
1653             break;
1654
1655         case XvBadExtension:
1656             msg_Warn( p_vout, "XvBadExtension" );
1657             return -1;
1658
1659         case XvBadAlloc:
1660             msg_Warn( p_vout, "XvBadAlloc" );
1661             return -1;
1662
1663         default:
1664             msg_Warn( p_vout, "XvQueryExtension failed" );
1665             return -1;
1666     }
1667
1668     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1669                              DefaultRootWindow( p_vout->p_sys->p_display ),
1670                              &i_num_adaptors, &p_adaptor ) )
1671     {
1672         case Success:
1673             break;
1674
1675         case XvBadExtension:
1676             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1677             return -1;
1678
1679         case XvBadAlloc:
1680             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1681             return -1;
1682
1683         default:
1684             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1685             return -1;
1686     }
1687
1688     i_selected_port = -1;
1689     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1690
1691     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1692     {
1693         XvImageFormatValues *p_formats;
1694         int i_format, i_num_formats;
1695         int i_port;
1696
1697         /* If we requested an adaptor and it's not this one, we aren't
1698          * interested */
1699         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1700         {
1701             continue;
1702         }
1703
1704         /* If the adaptor doesn't have the required properties, skip it */
1705         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1706             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1707         {
1708             continue;
1709         }
1710
1711         /* Check that adaptor supports our requested format... */
1712         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1713                                         p_adaptor[i_adaptor].base_id,
1714                                         &i_num_formats );
1715
1716         for( i_format = 0;
1717              i_format < i_num_formats && ( i_selected_port == -1 );
1718              i_format++ )
1719         {
1720             /* Code removed, we can get this through xvinfo anyway */
1721 #if 0
1722             XvEncodingInfo  *p_enc;
1723             int             i_enc, i_num_encodings;
1724             XvAttribute     *p_attr;
1725             int             i_attr, i_num_attributes;
1726 #endif
1727
1728             /* If this is not the format we want, or at least a
1729              * similar one, forget it */
1730             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1731             {
1732                 continue;
1733             }
1734
1735             /* Look for the first available port supporting this format */
1736             for( i_port = p_adaptor[i_adaptor].base_id;
1737                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1738                                    + p_adaptor[i_adaptor].num_ports) )
1739                    && ( i_selected_port == -1 );
1740                  i_port++ )
1741             {
1742                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1743                      == Success )
1744                 {
1745                     i_selected_port = i_port;
1746                     *pi_newchroma = p_formats[ i_format ].id;
1747                 }
1748             }
1749
1750             /* If no free port was found, forget it */
1751             if( i_selected_port == -1 )
1752             {
1753                 continue;
1754             }
1755
1756             /* If we found a port, print information about it */
1757             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1758                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1759                      (char *)&p_formats[ i_format ].id,
1760                      ( p_formats[ i_format ].format == XvPacked ) ?
1761                          "packed" : "planar" );
1762
1763 #if 0
1764             msg_Dbg( p_vout, " encoding list:" );
1765
1766             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1767                                   &i_num_encodings, &p_enc )
1768                  != Success )
1769             {
1770                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1771                 continue;
1772             }
1773
1774             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1775             {
1776                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1777                                       " numerator=%d, denominator=%d",
1778                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1779                              p_enc[i_enc].width, p_enc[i_enc].height,
1780                              p_enc[i_enc].rate.numerator,
1781                              p_enc[i_enc].rate.denominator );
1782             }
1783
1784             if( p_enc != NULL )
1785             {
1786                 XvFreeEncodingInfo( p_enc );
1787             }
1788
1789             msg_Dbg( p_vout, " attribute list:" );
1790             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1791                                             i_selected_port,
1792                                             &i_num_attributes );
1793             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1794             {
1795                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1796                       p_attr[i_attr].name,
1797                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1798                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1799                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1800             }
1801
1802             if( p_attr != NULL )
1803             {
1804                 XFree( p_attr );
1805             }
1806 #endif
1807         }
1808
1809         if( p_formats != NULL )
1810         {
1811             XFree( p_formats );
1812         }
1813
1814     }
1815
1816     if( i_num_adaptors > 0 )
1817     {
1818         XvFreeAdaptorInfo( p_adaptor );
1819     }
1820
1821     if( i_selected_port == -1 )
1822     {
1823         if( i_requested_adaptor == -1 )
1824         {
1825             msg_Warn( p_vout, "no free XVideo port found for format "
1826                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1827         }
1828         else
1829         {
1830             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1831                        "XVideo port for format 0x%.8x (%4.4s)",
1832                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1833         }
1834     }
1835
1836     return i_selected_port;
1837 }
1838
1839 /*****************************************************************************
1840  * XVideoReleasePort: release YUV12 port
1841  *****************************************************************************/
1842 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1843 {
1844     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1845 }
1846 #endif
1847
1848 /*****************************************************************************
1849  * InitDisplay: open and initialize X11 device
1850  *****************************************************************************
1851  * Create a window according to video output given size, and set other
1852  * properties according to the display properties.
1853  *****************************************************************************/
1854 static int InitDisplay( vout_thread_t *p_vout )
1855 {
1856 #ifdef MODULE_NAME_IS_x11
1857     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1858     XVisualInfo *               p_xvisual;           /* visuals informations */
1859     XVisualInfo                 xvisual_template;         /* visual template */
1860     int                         i_count;                       /* array size */
1861 #endif
1862
1863 #ifdef HAVE_SYS_SHM_H
1864     p_vout->p_sys->b_shm = 0;
1865
1866     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1867     {
1868 #   ifdef SYS_DARWIN
1869         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1870 #   else
1871         p_vout->p_sys->b_shm =
1872                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1873 #   endif
1874
1875         if( !p_vout->p_sys->b_shm )
1876         {
1877             msg_Warn( p_vout, "XShm video extension is unavailable" );
1878         }
1879     }
1880     else
1881     {
1882         msg_Dbg( p_vout, "disabling XShm video extension" );
1883     }
1884
1885 #else
1886     msg_Warn( p_vout, "XShm video extension is unavailable" );
1887
1888 #endif
1889
1890 #ifdef MODULE_NAME_IS_xvideo
1891     /* XXX The brightness and contrast values should be read from environment
1892      * XXX variables... */
1893 #if 0
1894     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1895     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1896 #endif
1897 #endif
1898
1899 #ifdef MODULE_NAME_IS_x11
1900     /* Initialize structure */
1901     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1902
1903     /* Get screen depth */
1904     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1905                                                    p_vout->p_sys->i_screen );
1906     switch( p_vout->p_sys->i_screen_depth )
1907     {
1908     case 8:
1909         /*
1910          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1911          */
1912         xvisual_template.screen =   p_vout->p_sys->i_screen;
1913         xvisual_template.class =    DirectColor;
1914         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1915                                     VisualScreenMask | VisualClassMask,
1916                                     &xvisual_template, &i_count );
1917         if( p_xvisual == NULL )
1918         {
1919             msg_Err( p_vout, "no PseudoColor visual available" );
1920             return VLC_EGENERIC;
1921         }
1922         p_vout->p_sys->i_bytes_per_pixel = 1;
1923         p_vout->output.pf_setpalette = SetPalette;
1924         break;
1925     case 15:
1926     case 16:
1927     case 24:
1928     default:
1929         /*
1930          * Screen depth is higher than 8bpp. TrueColor visual is used.
1931          */
1932         xvisual_template.screen =   p_vout->p_sys->i_screen;
1933         xvisual_template.class =    TrueColor;
1934         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1935                                     VisualScreenMask | VisualClassMask,
1936                                     &xvisual_template, &i_count );
1937         if( p_xvisual == NULL )
1938         {
1939             msg_Err( p_vout, "no TrueColor visual available" );
1940             return VLC_EGENERIC;
1941         }
1942
1943         p_vout->output.i_rmask = p_xvisual->red_mask;
1944         p_vout->output.i_gmask = p_xvisual->green_mask;
1945         p_vout->output.i_bmask = p_xvisual->blue_mask;
1946
1947         /* There is no difference yet between 3 and 4 Bpp. The only way
1948          * to find the actual number of bytes per pixel is to list supported
1949          * pixmap formats. */
1950         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1951         p_vout->p_sys->i_bytes_per_pixel = 0;
1952
1953         for( ; i_count-- ; p_formats++ )
1954         {
1955             /* Under XFree4.0, the list contains pixmap formats available
1956              * through all video depths ; so we have to check against current
1957              * depth. */
1958             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
1959             {
1960                 if( p_formats->bits_per_pixel / 8
1961                         > (int)p_vout->p_sys->i_bytes_per_pixel )
1962                 {
1963                     p_vout->p_sys->i_bytes_per_pixel =
1964                                                p_formats->bits_per_pixel / 8;
1965                 }
1966             }
1967         }
1968         break;
1969     }
1970     p_vout->p_sys->p_visual = p_xvisual->visual;
1971     XFree( p_xvisual );
1972 #endif
1973
1974     return VLC_SUCCESS;
1975 }
1976
1977 #ifdef HAVE_SYS_SHM_H
1978 /*****************************************************************************
1979  * CreateShmImage: create an XImage or XvImage using shared memory extension
1980  *****************************************************************************
1981  * Prepare an XImage or XvImage for display function.
1982  * The order of the operations respects the recommandations of the mit-shm
1983  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1984  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1985  *****************************************************************************/
1986 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1987                                     Display* p_display, EXTRA_ARGS_SHM,
1988                                     int i_width, int i_height )
1989 {
1990     IMAGE_TYPE *p_image;
1991
1992     /* Create XImage / XvImage */
1993 #ifdef MODULE_NAME_IS_xvideo
1994     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1995                                 i_width, i_height, p_shm );
1996 #else
1997     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1998                                p_shm, i_width, i_height );
1999 #endif
2000     if( p_image == NULL )
2001     {
2002         msg_Err( p_vout, "image creation failed" );
2003         return NULL;
2004     }
2005
2006     /* Allocate shared memory segment - 0776 set the access permission
2007      * rights (like umask), they are not yet supported by all X servers */
2008     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
2009     if( p_shm->shmid < 0 )
2010     {
2011         msg_Err( p_vout, "cannot allocate shared image data (%s)",
2012                          strerror( errno ) );
2013         IMAGE_FREE( p_image );
2014         return NULL;
2015     }
2016
2017     /* Attach shared memory segment to process (read/write) */
2018     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
2019     if(! p_shm->shmaddr )
2020     {
2021         msg_Err( p_vout, "cannot attach shared memory (%s)",
2022                          strerror(errno));
2023         IMAGE_FREE( p_image );
2024         shmctl( p_shm->shmid, IPC_RMID, 0 );
2025         return NULL;
2026     }
2027
2028     /* Read-only data. We won't be using XShmGetImage */
2029     p_shm->readOnly = True;
2030
2031     /* Attach shared memory segment to X server */
2032     if( XShmAttach( p_display, p_shm ) == False )
2033     {
2034         msg_Err( p_vout, "cannot attach shared memory to X server" );
2035         IMAGE_FREE( p_image );
2036         shmctl( p_shm->shmid, IPC_RMID, 0 );
2037         shmdt( p_shm->shmaddr );
2038         return NULL;
2039     }
2040
2041     /* Send image to X server. This instruction is required, since having
2042      * built a Shm XImage and not using it causes an error on XCloseDisplay,
2043      * and remember NOT to use XFlush ! */
2044     XSync( p_display, False );
2045
2046 #if 0
2047     /* Mark the shm segment to be removed when there are no more
2048      * attachements, so it is automatic on process exit or after shmdt */
2049     shmctl( p_shm->shmid, IPC_RMID, 0 );
2050 #endif
2051
2052     return p_image;
2053 }
2054 #endif
2055
2056 /*****************************************************************************
2057  * CreateImage: create an XImage or XvImage
2058  *****************************************************************************
2059  * Create a simple image used as a buffer.
2060  *****************************************************************************/
2061 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
2062                                  Display *p_display, EXTRA_ARGS,
2063                                  int i_width, int i_height )
2064 {
2065     byte_t *    p_data;                           /* image data storage zone */
2066     IMAGE_TYPE *p_image;
2067 #ifdef MODULE_NAME_IS_x11
2068     int         i_quantum;                     /* XImage quantum (see below) */
2069     int         i_bytes_per_line;
2070 #endif
2071
2072     /* Allocate memory for image */
2073 #ifdef MODULE_NAME_IS_xvideo
2074     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
2075 #else
2076     i_bytes_per_line = i_width * i_bytes_per_pixel;
2077     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
2078 #endif
2079     if( !p_data )
2080     {
2081         msg_Err( p_vout, "out of memory" );
2082         return NULL;
2083     }
2084
2085 #ifdef MODULE_NAME_IS_x11
2086     /* Optimize the quantum of a scanline regarding its size - the quantum is
2087        a diviser of the number of bits between the start of two scanlines. */
2088     if( i_bytes_per_line & 0xf )
2089     {
2090         i_quantum = 0x8;
2091     }
2092     else if( i_bytes_per_line & 0x10 )
2093     {
2094         i_quantum = 0x10;
2095     }
2096     else
2097     {
2098         i_quantum = 0x20;
2099     }
2100 #endif
2101
2102     /* Create XImage. p_data will be automatically freed */
2103 #ifdef MODULE_NAME_IS_xvideo
2104     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2105                              p_data, i_width, i_height );
2106 #else
2107     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2108                             p_data, i_width, i_height, i_quantum, 0 );
2109 #endif
2110     if( p_image == NULL )
2111     {
2112         msg_Err( p_vout, "XCreateImage() failed" );
2113         free( p_data );
2114         return NULL;
2115     }
2116
2117     return p_image;
2118 }
2119
2120 #ifdef MODULE_NAME_IS_x11
2121 /*****************************************************************************
2122  * SetPalette: sets an 8 bpp palette
2123  *****************************************************************************
2124  * This function sets the palette given as an argument. It does not return
2125  * anything, but could later send information on which colors it was unable
2126  * to set.
2127  *****************************************************************************/
2128 static void SetPalette( vout_thread_t *p_vout,
2129                         uint16_t *red, uint16_t *green, uint16_t *blue )
2130 {
2131     int i;
2132     XColor p_colors[255];
2133
2134     /* allocate palette */
2135     for( i = 0; i < 255; i++ )
2136     {
2137         /* kludge: colors are indexed reversely because color 255 seems
2138          * to be reserved for black even if we try to set it to white */
2139         p_colors[ i ].pixel = 255 - i;
2140         p_colors[ i ].pad   = 0;
2141         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2142         p_colors[ i ].red   = red[ 255 - i ];
2143         p_colors[ i ].blue  = blue[ 255 - i ];
2144         p_colors[ i ].green = green[ 255 - i ];
2145     }
2146
2147     XStoreColors( p_vout->p_sys->p_display,
2148                   p_vout->p_sys->colormap, p_colors, 255 );
2149 }
2150 #endif