00693cdaabddb408a289d5c50033b74c45a755db
[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 1.28 2003/08/03 23:11:21 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 static void TestNetWMSupport( vout_thread_t * );
121
122 /*****************************************************************************
123  * Activate: allocate X11 video thread output method
124  *****************************************************************************
125  * This function allocate and initialize a X11 vout method. It uses some of the
126  * vout properties to choose the window size, and change them according to the
127  * actual properties of the display.
128  *****************************************************************************/
129 int E_(Activate) ( vlc_object_t *p_this )
130 {
131     vout_thread_t *p_vout = (vout_thread_t *)p_this;
132     char *       psz_display;
133 #ifdef MODULE_NAME_IS_xvideo
134     char *       psz_chroma;
135     vlc_fourcc_t i_chroma = 0;
136     vlc_bool_t   b_chroma = 0;
137 #endif
138
139     p_vout->pf_init = InitVideo;
140     p_vout->pf_end = EndVideo;
141     p_vout->pf_manage = ManageVideo;
142     p_vout->pf_render = NULL;
143     p_vout->pf_display = DisplayVideo;
144
145     /* Allocate structure */
146     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
147     if( p_vout->p_sys == NULL )
148     {
149         msg_Err( p_vout, "out of memory" );
150         return VLC_ENOMEM;
151     }
152
153     /* Open display, using the "display" config variable or the DISPLAY
154      * environment variable */
155     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
156
157     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
158
159     if( p_vout->p_sys->p_display == NULL )                          /* error */
160     {
161         msg_Err( p_vout, "cannot open display %s",
162                          XDisplayName( psz_display ) );
163         free( p_vout->p_sys );
164         if( psz_display ) free( psz_display );
165         return VLC_EGENERIC;
166     }
167     if( psz_display ) free( psz_display );
168
169     /* Get a screen ID matching the XOpenDisplay return value */
170     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
171
172 #ifdef MODULE_NAME_IS_xvideo
173     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
174     if( psz_chroma )
175     {
176         if( strlen( psz_chroma ) >= 4 )
177         {
178             /* Do not use direct assignment because we are not sure of the
179              * alignment. */
180             memcpy(&i_chroma, psz_chroma, 4);
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, VLC2X11_FOURCC(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, X11_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, X11_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     p_vout->output.i_chroma = X112VLC_FOURCC(p_vout->output.i_chroma);
234 #endif
235
236     /* Create blank cursor (for mouse cursor autohiding) */
237     p_vout->p_sys->i_time_mouse_last_moved = mdate();
238     p_vout->p_sys->b_mouse_pointer_visible = 1;
239     CreateCursor( p_vout );
240
241     /* Set main window's size */
242     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
243     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
244
245     /* Spawn base window - this window will include the video output window,
246      * but also command buttons, subtitles and other indicators */
247     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
248     {
249         msg_Err( p_vout, "cannot create X11 window" );
250         DestroyCursor( p_vout );
251         XCloseDisplay( p_vout->p_sys->p_display );
252         free( p_vout->p_sys );
253         return VLC_EGENERIC;
254     }
255
256     /* Open and initialize device. */
257     if( InitDisplay( p_vout ) )
258     {
259         msg_Err( p_vout, "cannot initialize X11 display" );
260         DestroyCursor( p_vout );
261         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
262         XCloseDisplay( p_vout->p_sys->p_display );
263         free( p_vout->p_sys );
264         return VLC_EGENERIC;
265     }
266
267     /* Disable screen saver */
268     DisableXScreenSaver( p_vout );
269
270     /* Misc init */
271     p_vout->p_sys->b_altfullscreen = 0;
272     p_vout->p_sys->i_time_button_last_pressed = 0;
273
274     TestNetWMSupport( p_vout );
275
276     return VLC_SUCCESS;
277 }
278
279 /*****************************************************************************
280  * Deactivate: destroy X11 video thread output method
281  *****************************************************************************
282  * Terminate an output method created by Open
283  *****************************************************************************/
284 void E_(Deactivate) ( vlc_object_t *p_this )
285 {
286     vout_thread_t *p_vout = (vout_thread_t *)p_this;
287
288     /* If the fullscreen window is still open, close it */
289     if( p_vout->b_fullscreen )
290     {
291         ToggleFullScreen( p_vout );
292     }
293
294     /* Restore cursor if it was blanked */
295     if( !p_vout->p_sys->b_mouse_pointer_visible )
296     {
297         ToggleCursor( p_vout );
298     }
299
300 #ifdef MODULE_NAME_IS_x11
301     /* Destroy colormap */
302     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
303     {
304         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
305     }
306 #else
307     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
308 #endif
309
310     DestroyCursor( p_vout );
311     EnableXScreenSaver( p_vout );
312     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
313
314     XCloseDisplay( p_vout->p_sys->p_display );
315
316     /* Destroy structure */
317     free( p_vout->p_sys );
318 }
319
320 /*****************************************************************************
321  * InitVideo: initialize X11 video thread output method
322  *****************************************************************************
323  * This function create the XImages needed by the output thread. It is called
324  * at the beginning of the thread, but also each time the window is resized.
325  *****************************************************************************/
326 static int InitVideo( vout_thread_t *p_vout )
327 {
328     int i_index;
329     picture_t *p_pic;
330
331     I_OUTPUTPICTURES = 0;
332
333 #ifdef MODULE_NAME_IS_xvideo
334     /* Initialize the output structure; we already found an XVideo port,
335      * and the corresponding chroma we will be using. Since we can
336      * arbitrary scale, stick to the coordinates and aspect. */
337     p_vout->output.i_width  = p_vout->render.i_width;
338     p_vout->output.i_height = p_vout->render.i_height;
339     p_vout->output.i_aspect = p_vout->render.i_aspect;
340
341     switch( p_vout->output.i_chroma )
342     {
343         case VLC_FOURCC('R','V','1','5'):
344             p_vout->output.i_rmask = 0x001f;
345             p_vout->output.i_gmask = 0x07e0;
346             p_vout->output.i_bmask = 0xf800;
347             break;
348         case VLC_FOURCC('R','V','1','6'):
349             p_vout->output.i_rmask = 0x001f;
350             p_vout->output.i_gmask = 0x03e0;
351             p_vout->output.i_bmask = 0x7c00;
352             break;
353     }
354
355 #else
356     /* Initialize the output structure: RGB with square pixels, whatever
357      * the input format is, since it's the only format we know */
358     switch( p_vout->p_sys->i_screen_depth )
359     {
360         case 8: /* FIXME: set the palette */
361             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
362         case 15:
363             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
364         case 16:
365             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
366         case 24:
367             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
368         case 32:
369             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
370         default:
371             msg_Err( p_vout, "unknown screen depth %i",
372                      p_vout->p_sys->i_screen_depth );
373             return VLC_SUCCESS;
374     }
375
376     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
377                        p_vout->p_sys->p_win->i_height,
378                        &i_index, &i_index,
379                        &p_vout->output.i_width, &p_vout->output.i_height );
380
381     /* Assume we have square pixels */
382     p_vout->output.i_aspect = p_vout->output.i_width
383                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
384 #endif
385
386     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
387     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
388     {
389         p_pic = NULL;
390
391         /* Find an empty picture slot */
392         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
393         {
394           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
395             {
396                 p_pic = p_vout->p_picture + i_index;
397                 break;
398             }
399         }
400
401         /* Allocate the picture */
402         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
403         {
404             break;
405         }
406
407         p_pic->i_status = DESTROYED_PICTURE;
408         p_pic->i_type   = DIRECT_PICTURE;
409
410         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
411
412         I_OUTPUTPICTURES++;
413     }
414
415     return VLC_SUCCESS;
416 }
417
418  /*****************************************************************************
419  * DisplayVideo: displays previously rendered output
420  *****************************************************************************
421  * This function sends the currently rendered image to X11 server.
422  * (The Xv extension takes care of "double-buffering".)
423  *****************************************************************************/
424 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
425 {
426     int i_width, i_height, i_x, i_y;
427
428     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
429                        p_vout->p_sys->p_win->i_height,
430                        &i_x, &i_y, &i_width, &i_height );
431
432 #ifdef HAVE_SYS_SHM_H
433     if( p_vout->p_sys->b_shm )
434     {
435         /* Display rendered image using shared memory extension */
436 #   ifdef MODULE_NAME_IS_xvideo
437         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
438                        p_vout->p_sys->p_win->video_window,
439                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
440                        0 /*src_x*/, 0 /*src_y*/,
441                        p_vout->output.i_width, p_vout->output.i_height,
442                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
443                        False /* Don't put True here or you'll waste your CPU */ );
444 #   else
445         XShmPutImage( p_vout->p_sys->p_display,
446                       p_vout->p_sys->p_win->video_window,
447                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
448                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
449                       p_vout->output.i_width, p_vout->output.i_height,
450                       False /* Don't put True here ! */ );
451 #   endif
452     }
453     else
454 #endif /* HAVE_SYS_SHM_H */
455     {
456         /* Use standard XPutImage -- this is gonna be slow ! */
457 #ifdef MODULE_NAME_IS_xvideo
458         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
459                     p_vout->p_sys->p_win->video_window,
460                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
461                     0 /*src_x*/, 0 /*src_y*/,
462                     p_vout->output.i_width, p_vout->output.i_height,
463                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
464 #else
465         XPutImage( p_vout->p_sys->p_display,
466                    p_vout->p_sys->p_win->video_window,
467                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
468                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
469                    p_vout->output.i_width, p_vout->output.i_height );
470 #endif
471     }
472
473     /* Make sure the command is sent now - do NOT use XFlush !*/
474     XSync( p_vout->p_sys->p_display, False );
475 }
476
477 /*****************************************************************************
478  * ManageVideo: handle X11 events
479  *****************************************************************************
480  * This function should be called regularly by video output thread. It manages
481  * X11 events and allows window resizing. It returns a non null value on
482  * error.
483  *****************************************************************************/
484 static int ManageVideo( vout_thread_t *p_vout )
485 {
486     XEvent      xevent;                                         /* X11 event */
487     char        i_key;                                    /* ISO Latin-1 key */
488     KeySym      x_key_symbol;
489     vlc_value_t val;
490
491     /* Handle X11 events: ConfigureNotify events are parsed to know if the
492      * output window's size changed, MapNotify and UnmapNotify to know if the
493      * window is mapped (and if the display is useful), and ClientMessages
494      * to intercept window destruction requests */
495
496     while( XCheckWindowEvent( p_vout->p_sys->p_display,
497                               p_vout->p_sys->p_win->base_window,
498                               StructureNotifyMask | KeyPressMask |
499                               ButtonPressMask | ButtonReleaseMask |
500                               PointerMotionMask | Button1MotionMask , &xevent )
501            == True )
502     {
503         /* ConfigureNotify event: prepare  */
504         if( xevent.type == ConfigureNotify )
505         {
506             if( (unsigned int)xevent.xconfigure.width
507                    != p_vout->p_sys->p_win->i_width
508               || (unsigned int)xevent.xconfigure.height
509                     != p_vout->p_sys->p_win->i_height )
510             {
511                 /* Update dimensions */
512                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
513                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
514                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
515             }
516         }
517         /* Keyboard event */
518         else if( xevent.type == KeyPress )
519         {
520             /* We may have keys like F1 trough F12, ESC ... */
521             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
522                                              xevent.xkey.keycode, 0 );
523             switch( (int)x_key_symbol )
524             {
525             case XK_Escape:
526                 if( p_vout->b_fullscreen )
527                 {
528                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
529                 }
530                 else
531                 {
532                     /* the user wants to close the window */
533                     playlist_t * p_playlist =
534                         (playlist_t *)vlc_object_find( p_vout,
535                                                        VLC_OBJECT_PLAYLIST,
536                                                        FIND_ANYWHERE );
537                     if( p_playlist != NULL )
538                     {
539                         playlist_Stop( p_playlist );
540                         vlc_object_release( p_playlist );
541                     }
542                 }
543                 break;
544             case XK_Menu:
545                 {
546                     intf_thread_t *p_intf;
547                     playlist_t * p_playlist;
548
549                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
550                                                       FIND_ANYWHERE );
551                     if( p_intf )
552                     {
553                         p_intf->b_menu_change = 1;
554                         vlc_object_release( p_intf );
555                     }
556
557                     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
558                                                            FIND_ANYWHERE );
559                     if( p_playlist != NULL )
560                     {
561                         vlc_value_t val;
562                         var_Set( p_playlist, "intf-popupmenu", val );
563                         vlc_object_release( p_playlist );
564                     }
565                 }
566                 break;
567             case XK_Left:
568 /*                input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
569                 val.psz_string = "LEFT";
570                 var_Set( p_vout, "key-pressed", val );
571                 break;
572             case XK_Right:
573 /*                input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
574                 val.psz_string = "RIGHT";
575                 var_Set( p_vout, "key-pressed", val );
576                 break;
577             case XK_Up:
578 /*                input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
579                 val.psz_string = "UP";
580                 var_Set( p_vout, "key-pressed", val );
581                 break;
582             case XK_Down:
583 /*                input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
584                 val.psz_string = "DOWN";
585                 var_Set( p_vout, "key-pressed", val );
586                 break;
587             case XK_Return:
588             case XK_KP_Enter:
589                 val.psz_string = "ENTER";
590                 var_Set( p_vout, "key-pressed", val );
591                 break;
592             case XK_Home:
593                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
594                 break;
595             case XK_End:
596                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
597                 break;
598             case XK_Page_Up:
599                 input_Seek( p_vout, 10, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
600                 break;
601             case XK_Page_Down:
602                 input_Seek( p_vout, -10, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
603                 break;
604             case XK_space:
605                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
606                 break;
607
608             default:
609                 /* "Normal Keys"
610                  * The reason why I use this instead of XK_0 is that
611                  * with XLookupString, we don't have to care about
612                  * keymaps. */
613
614                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
615                 {
616                     /* FIXME: handle stuff here */
617                     switch( i_key )
618                     {
619                     case 'q':
620                     case 'Q':
621                         p_vout->p_vlc->b_die = 1;
622                         break;
623                     case 'f':
624                     case 'F':
625                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
626                         break;
627
628                     default:
629                         break;
630                     }
631                 }
632                 break;
633             }
634         }
635         /* Mouse click */
636         else if( xevent.type == ButtonPress )
637         {
638             switch( ((XButtonEvent *)&xevent)->button )
639             {
640                 case Button1:
641                     var_Get( p_vout, "mouse-button-down", &val );
642                     val.i_int |= 1;
643                     var_Set( p_vout, "mouse-button-down", val );
644                     
645                     /* detect double-clicks */
646                     if( ( ((XButtonEvent *)&xevent)->time -
647                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
648                     {
649                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
650                     }
651
652                     p_vout->p_sys->i_time_button_last_pressed =
653                         ((XButtonEvent *)&xevent)->time;
654                     break;
655                 case Button2:
656                     var_Get( p_vout, "mouse-button-down", &val );
657                     val.i_int |= 2;
658                     var_Set( p_vout, "mouse-button-down", val );
659                     break;
660                 
661                 case Button3:
662                     var_Get( p_vout, "mouse-button-down", &val );
663                     val.i_int |= 4;
664                     var_Set( p_vout, "mouse-button-down", val );
665                     break;
666                 
667                 case Button4:
668                     var_Get( p_vout, "mouse-button-down", &val );
669                     val.i_int |= 8;
670                     var_Set( p_vout, "mouse-button-down", val );
671                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
672                     break;
673
674                 case Button5:
675                     var_Get( p_vout, "mouse-button-down", &val );
676                     val.i_int |= 16;
677                     var_Set( p_vout, "mouse-button-down", val );
678                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
679                     break;
680             }
681         }
682         /* Mouse release */
683         else if( xevent.type == ButtonRelease )
684         {
685             switch( ((XButtonEvent *)&xevent)->button )
686             {
687                 case Button1:
688                     var_Get( p_vout, "mouse-button-down", &val );
689                     val.i_int &= ~1;
690                     var_Set( p_vout, "mouse-button-down", val );
691
692                     val.b_bool = VLC_TRUE;
693                     var_Set( p_vout, "mouse-clicked", val );
694                     break;
695                     
696                 case Button2:
697                     {
698                         playlist_t *p_playlist;
699
700                         var_Get( p_vout, "mouse-button-down", &val );
701                         val.i_int &= ~2;
702                         var_Set( p_vout, "mouse-button-down", val );
703
704                         p_playlist = vlc_object_find( p_vout,
705                                                       VLC_OBJECT_PLAYLIST,
706                                                       FIND_ANYWHERE );
707                         if( p_playlist != NULL )
708                         {
709                             vlc_value_t val;
710                             var_Get( p_playlist, "intf-show", &val );
711                             val.b_bool = !val.b_bool;
712                             var_Set( p_playlist, "intf-show", val );
713                             vlc_object_release( p_playlist );
714                         }
715                     }
716                     break;
717                     
718                 case Button3:
719                     {
720                         intf_thread_t *p_intf;
721                         playlist_t *p_playlist;
722
723                         var_Get( p_vout, "mouse-button-down", &val );
724                         val.i_int &= ~4;
725                         var_Set( p_vout, "mouse-button-down", val );
726                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
727                                                           FIND_ANYWHERE );
728                         if( p_intf )
729                         {
730                             p_intf->b_menu_change = 1;
731                             vlc_object_release( p_intf );
732                         }
733
734                         p_playlist = vlc_object_find( p_vout,
735                                                       VLC_OBJECT_PLAYLIST,
736                                                       FIND_ANYWHERE );
737                         if( p_playlist != NULL )
738                         {
739                             vlc_value_t val;
740                             var_Set( p_playlist, "intf-popupmenu", val );
741                             vlc_object_release( p_playlist );
742                         }
743                     }
744                     break;
745
746                 case Button4:
747                     var_Get( p_vout, "mouse-button-down", &val );
748                     val.i_int &= ~8;
749                     var_Set( p_vout, "mouse-button-down", val );
750                     break;
751
752                 case Button5:
753                     var_Get( p_vout, "mouse-button-down", &val );
754                     val.i_int &= ~16;
755                     var_Set( p_vout, "mouse-button-down", val );
756                     break;
757                     
758             }
759         }
760         /* Mouse move */
761         else if( xevent.type == MotionNotify )
762         {
763             int i_width, i_height, i_x, i_y;
764             vlc_value_t val;
765
766             /* somewhat different use for vout_PlacePicture:
767              * here the values are needed to give to mouse coordinates
768              * in the original picture space */
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             val.i_int = ( xevent.xmotion.x - i_x )
774                          * p_vout->render.i_width / i_width;
775             var_Set( p_vout, "mouse-x", val );
776             val.i_int = ( xevent.xmotion.y - i_y )
777                          * p_vout->render.i_height / i_height;
778             var_Set( p_vout, "mouse-y", val );
779
780             val.b_bool = VLC_TRUE;
781             var_Set( p_vout, "mouse-moved", val );
782
783             p_vout->p_sys->i_time_mouse_last_moved = mdate();
784             if( ! p_vout->p_sys->b_mouse_pointer_visible )
785             {
786                 ToggleCursor( p_vout );
787             }
788         }
789         else if( xevent.type == ReparentNotify /* XXX: why do we get this? */
790                   || xevent.type == MapNotify
791                   || xevent.type == UnmapNotify )
792         {
793             /* Ignore these events */
794         }
795         else /* Other events */
796         {
797             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
798         }
799     }
800
801     /* Handle events for video output sub-window */
802     while( XCheckWindowEvent( p_vout->p_sys->p_display,
803                               p_vout->p_sys->p_win->video_window,
804                               ExposureMask, &xevent ) == True )
805     {
806         /* Window exposed (only handled if stream playback is paused) */
807         if( xevent.type == Expose )
808         {
809             if( ((XExposeEvent *)&xevent)->count == 0 )
810             {
811                 /* (if this is the last a collection of expose events...) */
812 #if 0
813                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
814                 {
815                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
816                                                    ->stream.control.i_status )
817                     {
818                         /* XVideoDisplay( p_vout )*/;
819                     }
820                 }
821 #endif
822             }
823         }
824     }
825
826     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
827      * are handled - according to the man pages, the format is always 32
828      * in this case */
829     while( XCheckTypedEvent( p_vout->p_sys->p_display,
830                              ClientMessage, &xevent ) )
831     {
832         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
833                && ((Atom)xevent.xclient.data.l[0]
834                      == p_vout->p_sys->p_win->wm_delete_window ) )
835         {
836             /* the user wants to close the window */
837             playlist_t * p_playlist =
838                 (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
839                                                FIND_ANYWHERE );
840             if( p_playlist != NULL )
841             {
842                 playlist_Stop( p_playlist );
843                 vlc_object_release( p_playlist );
844             }
845         }
846     }
847
848     /*
849      * Fullscreen Change
850      */
851     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
852     {
853         vlc_value_t val;
854
855         /* Update the object variable and trigger callback */
856         val.b_bool = !p_vout->b_fullscreen;
857         var_Set( p_vout, "fullscreen", val );
858
859         ToggleFullScreen( p_vout );
860         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
861     }
862
863     /*
864      * Size change
865      *
866      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
867      *  the size flag inside the fullscreen routine)
868      */
869     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
870     {
871         int i_width, i_height, i_x, i_y;
872
873         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
874
875 #ifdef MODULE_NAME_IS_x11
876         /* We need to signal the vout thread about the size change because it
877          * is doing the rescaling */
878         p_vout->i_changes |= VOUT_SIZE_CHANGE;
879 #endif
880
881         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
882                            p_vout->p_sys->p_win->i_height,
883                            &i_x, &i_y, &i_width, &i_height );
884
885         XResizeWindow( p_vout->p_sys->p_display,
886                        p_vout->p_sys->p_win->video_window, i_width, i_height );
887
888         XMoveWindow( p_vout->p_sys->p_display,
889                      p_vout->p_sys->p_win->video_window, i_x, i_y );
890     }
891
892     /* Autohide Cursour */
893     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
894     {
895         /* Hide the mouse automatically */
896         if( p_vout->p_sys->b_mouse_pointer_visible )
897         {
898             ToggleCursor( p_vout );
899         }
900     }
901
902     return 0;
903 }
904
905 /*****************************************************************************
906  * EndVideo: terminate X11 video thread output method
907  *****************************************************************************
908  * Destroy the X11 XImages created by Init. It is called at the end of
909  * the thread, but also each time the window is resized.
910  *****************************************************************************/
911 static void EndVideo( vout_thread_t *p_vout )
912 {
913     int i_index;
914
915     /* Free the direct buffers we allocated */
916     for( i_index = I_OUTPUTPICTURES ; i_index ; )
917     {
918         i_index--;
919         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
920     }
921 }
922
923 /* following functions are local */
924
925 /*****************************************************************************
926  * CreateWindow: open and set-up X11 main window
927  *****************************************************************************/
928 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
929 {
930     XSizeHints              xsize_hints;
931     XSetWindowAttributes    xwindow_attributes;
932     XGCValues               xgcvalues;
933     XEvent                  xevent;
934
935     vlc_bool_t              b_expose = VLC_FALSE;
936     vlc_bool_t              b_configure_notify = VLC_FALSE;
937     vlc_bool_t              b_map_notify = VLC_FALSE;
938
939     vlc_value_t             val;
940     long long int           i_drawable;
941
942     /* Prepare window manager hints and properties */
943     xsize_hints.base_width          = p_win->i_width;
944     xsize_hints.base_height         = p_win->i_height;
945     xsize_hints.flags               = PSize;
946     p_win->wm_protocols =
947              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
948     p_win->wm_delete_window =
949              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
950
951     /* Prepare window attributes */
952     xwindow_attributes.backing_store = Always;       /* save the hidden part */
953     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
954                                                      p_vout->p_sys->i_screen);
955     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
956
957     /* Check whether someone provided us with a window ID */
958     var_Get( p_vout->p_vlc, "drawable", &val );
959     i_drawable = p_vout->b_fullscreen ? 0 : val.i_int;
960
961     if( !i_drawable )
962     {
963         /* Create the window and set hints - the window must receive
964          * ConfigureNotify events, and until it is displayed, Expose and
965          * MapNotify events. */
966
967         p_win->base_window =
968             XCreateWindow( p_vout->p_sys->p_display,
969                            DefaultRootWindow( p_vout->p_sys->p_display ),
970                            0, 0,
971                            p_win->i_width, p_win->i_height,
972                            0,
973                            0, InputOutput, 0,
974                            CWBackingStore | CWBackPixel | CWEventMask,
975                            &xwindow_attributes );
976
977         if( !p_vout->b_fullscreen )
978         {
979             /* Set window manager hints and properties: size hints, command,
980              * window's name, and accepted protocols */
981             XSetWMNormalHints( p_vout->p_sys->p_display,
982                                p_win->base_window, &xsize_hints );
983             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
984                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
985
986             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
987 #ifdef MODULE_NAME_IS_x11
988                         VOUT_TITLE " (X11 output)"
989 #else
990                         VOUT_TITLE " (XVideo output)"
991 #endif
992                       );
993         }
994     }
995     else
996     {
997         /* Get the parent window's geometry information */
998         Window dummy1;
999         unsigned int dummy2, dummy3;
1000         XGetGeometry( p_vout->p_sys->p_display, i_drawable,
1001                       &dummy1, &dummy2, &dummy3,
1002                       &p_win->i_width,
1003                       &p_win->i_height,
1004                       &dummy2, &dummy3 );
1005
1006         /* We are already configured */
1007         b_configure_notify = VLC_TRUE;
1008
1009         /* From man XSelectInput: only one client at a time can select a
1010          * ButtonPress event, so we need to open a new window anyway. */
1011         p_win->base_window =
1012             XCreateWindow( p_vout->p_sys->p_display,
1013                            i_drawable,
1014                            0, 0,
1015                            p_win->i_width, p_win->i_height,
1016                            0,
1017                            0, CopyFromParent, 0,
1018                            CWBackingStore | CWBackPixel | CWEventMask,
1019                            &xwindow_attributes );
1020     }
1021
1022     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
1023         || (p_win->wm_delete_window == None)
1024         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
1025                              &p_win->wm_delete_window, 1 ) )
1026     {
1027         /* WM_DELETE_WINDOW is not supported by window manager */
1028         msg_Warn( p_vout, "missing or bad window manager" );
1029     }
1030
1031     /* Creation of a graphic context that doesn't generate a GraphicsExpose
1032      * event when using functions like XCopyArea */
1033     xgcvalues.graphics_exposures = False;
1034     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
1035                            p_win->base_window,
1036                            GCGraphicsExposures, &xgcvalues );
1037
1038     /* Send orders to server, and wait until window is displayed - three
1039      * events must be received: a MapNotify event, an Expose event allowing
1040      * drawing in the window, and a ConfigureNotify to get the window
1041      * dimensions. Once those events have been received, only
1042      * ConfigureNotify events need to be received. */
1043     XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
1044     do
1045     {
1046         XNextEvent( p_vout->p_sys->p_display, &xevent);
1047         if( (xevent.type == Expose)
1048             && (xevent.xexpose.window == p_win->base_window) )
1049         {
1050             b_expose = VLC_TRUE;
1051         }
1052         else if( (xevent.type == MapNotify)
1053                  && (xevent.xmap.window == p_win->base_window) )
1054         {
1055             b_map_notify = VLC_TRUE;
1056         }
1057         else if( (xevent.type == ConfigureNotify)
1058                  && (xevent.xconfigure.window == p_win->base_window) )
1059         {
1060             b_configure_notify = VLC_TRUE;
1061             p_win->i_width = xevent.xconfigure.width;
1062             p_win->i_height = xevent.xconfigure.height;
1063         }
1064     } while( !( b_expose && b_configure_notify && b_map_notify ) );
1065
1066     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
1067                   StructureNotifyMask | KeyPressMask |
1068                   ButtonPressMask | ButtonReleaseMask |
1069                   PointerMotionMask );
1070
1071 #ifdef MODULE_NAME_IS_x11
1072     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
1073     {
1074         /* Allocate a new palette */
1075         p_vout->p_sys->colormap =
1076             XCreateColormap( p_vout->p_sys->p_display,
1077                              DefaultRootWindow( p_vout->p_sys->p_display ),
1078                              DefaultVisual( p_vout->p_sys->p_display,
1079                                             p_vout->p_sys->i_screen ),
1080                              AllocAll );
1081
1082         xwindow_attributes.colormap = p_vout->p_sys->colormap;
1083         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
1084                                  CWColormap, &xwindow_attributes );
1085     }
1086 #endif
1087
1088     /* Create video output sub-window. */
1089     p_win->video_window =  XCreateSimpleWindow(
1090                                       p_vout->p_sys->p_display,
1091                                       p_win->base_window, 0, 0,
1092                                       p_win->i_width, p_win->i_height,
1093                                       0,
1094                                       BlackPixel( p_vout->p_sys->p_display,
1095                                                   p_vout->p_sys->i_screen ),
1096                                       WhitePixel( p_vout->p_sys->p_display,
1097                                                   p_vout->p_sys->i_screen ) );
1098
1099     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
1100                           BlackPixel( p_vout->p_sys->p_display,
1101                                       p_vout->p_sys->i_screen ) );
1102
1103     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
1104     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
1105                   ExposureMask );
1106
1107     /* make sure the video window will be centered in the next ManageVideo() */
1108     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1109
1110     /* If the cursor was formerly blank than blank it again */
1111     if( !p_vout->p_sys->b_mouse_pointer_visible )
1112     {
1113         ToggleCursor( p_vout );
1114         ToggleCursor( p_vout );
1115     }
1116
1117     /* Do NOT use XFlush here ! */
1118     XSync( p_vout->p_sys->p_display, False );
1119
1120     /* At this stage, the window is open, displayed, and ready to
1121      * receive data */
1122     p_vout->p_sys->p_win = p_win;
1123
1124     return VLC_SUCCESS;
1125 }
1126
1127 /*****************************************************************************
1128  * DestroyWindow: destroy the window
1129  *****************************************************************************
1130  *
1131  *****************************************************************************/
1132 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1133 {
1134     /* Do NOT use XFlush here ! */
1135     XSync( p_vout->p_sys->p_display, False );
1136
1137     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1138     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1139
1140     XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1141     XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1142 }
1143
1144 /*****************************************************************************
1145  * NewPicture: allocate a picture
1146  *****************************************************************************
1147  * Returns 0 on success, -1 otherwise
1148  *****************************************************************************/
1149 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1150 {
1151     /* We know the chroma, allocate a buffer which will be used
1152      * directly by the decoder */
1153     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1154
1155     if( p_pic->p_sys == NULL )
1156     {
1157         return -1;
1158     }
1159
1160 #ifdef HAVE_SYS_SHM_H
1161     if( p_vout->p_sys->b_shm )
1162     {
1163         /* Create image using XShm extension */
1164         p_pic->p_sys->p_image =
1165             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1166 #   ifdef MODULE_NAME_IS_xvideo
1167                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1168 #   else
1169                             p_vout->p_sys->p_visual,
1170                             p_vout->p_sys->i_screen_depth,
1171 #   endif
1172                             &p_pic->p_sys->shminfo,
1173                             p_vout->output.i_width, p_vout->output.i_height );
1174     }
1175     else
1176 #endif /* HAVE_SYS_SHM_H */
1177     {
1178         /* Create image without XShm extension */
1179         p_pic->p_sys->p_image =
1180             CreateImage( p_vout, p_vout->p_sys->p_display,
1181 #ifdef MODULE_NAME_IS_xvideo
1182                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1183 #else
1184                          p_vout->p_sys->p_visual,
1185                          p_vout->p_sys->i_screen_depth,
1186                          p_vout->p_sys->i_bytes_per_pixel,
1187 #endif
1188                          p_vout->output.i_width, p_vout->output.i_height );
1189     }
1190
1191     if( p_pic->p_sys->p_image == NULL )
1192     {
1193         free( p_pic->p_sys );
1194         return -1;
1195     }
1196
1197     switch( p_vout->output.i_chroma )
1198     {
1199 #ifdef MODULE_NAME_IS_xvideo
1200         case VLC_FOURCC('I','4','2','0'):
1201
1202             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1203                                + p_pic->p_sys->p_image->offsets[0];
1204             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1205             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1206             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1207             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1208
1209             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1210                                + p_pic->p_sys->p_image->offsets[1];
1211             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1212             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1213             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1214             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1215
1216             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1217                                + p_pic->p_sys->p_image->offsets[2];
1218             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1219             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1220             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1221             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1222
1223             p_pic->i_planes = 3;
1224             break;
1225
1226         case VLC_FOURCC('Y','V','1','2'):
1227
1228             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1229                                + p_pic->p_sys->p_image->offsets[0];
1230             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1231             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1232             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1233             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1234             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1235
1236             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1237                                + p_pic->p_sys->p_image->offsets[2];
1238             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1239             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1240             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1241             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1242
1243             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1244                                + p_pic->p_sys->p_image->offsets[1];
1245             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1246             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1247             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1248             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1249
1250             p_pic->i_planes = 3;
1251             break;
1252
1253         case VLC_FOURCC('Y','2','1','1'):
1254
1255             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1256                                   + p_pic->p_sys->p_image->offsets[0];
1257             p_pic->p->i_lines = p_vout->output.i_height;
1258             /* XXX: this just looks so plain wrong... check it out ! */
1259             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1260             p_pic->p->i_pixel_pitch = 4;
1261             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1262
1263             p_pic->i_planes = 1;
1264             break;
1265
1266         case VLC_FOURCC('Y','U','Y','2'):
1267         case VLC_FOURCC('U','Y','V','Y'):
1268
1269             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1270                                   + p_pic->p_sys->p_image->offsets[0];
1271             p_pic->p->i_lines = p_vout->output.i_height;
1272             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1273             p_pic->p->i_pixel_pitch = 4;
1274             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1275
1276             p_pic->i_planes = 1;
1277             break;
1278
1279         case VLC_FOURCC('R','V','1','5'):
1280
1281             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1282                                   + p_pic->p_sys->p_image->offsets[0];
1283             p_pic->p->i_lines = p_vout->output.i_height;
1284             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1285             p_pic->p->i_pixel_pitch = 2;
1286             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1287
1288             p_pic->i_planes = 1;
1289             break;
1290
1291         case VLC_FOURCC('R','V','1','6'):
1292
1293             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1294                                   + p_pic->p_sys->p_image->offsets[0];
1295             p_pic->p->i_lines = p_vout->output.i_height;
1296             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1297             p_pic->p->i_pixel_pitch = 2;
1298             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1299
1300             p_pic->i_planes = 1;
1301             break;
1302
1303 #else
1304         case VLC_FOURCC('R','G','B','2'):
1305
1306             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1307                                   + p_pic->p_sys->p_image->xoffset;
1308             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1309             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1310             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1311             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1312
1313             p_pic->i_planes = 1;
1314
1315             break;
1316
1317         case VLC_FOURCC('R','V','1','6'):
1318         case VLC_FOURCC('R','V','1','5'):
1319
1320             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1321                                   + p_pic->p_sys->p_image->xoffset;
1322             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1323             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1324             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1325             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1326
1327             p_pic->i_planes = 1;
1328
1329             break;
1330
1331         case VLC_FOURCC('R','V','3','2'):
1332         case VLC_FOURCC('R','V','2','4'):
1333
1334             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1335                                   + p_pic->p_sys->p_image->xoffset;
1336             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1337             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1338             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1339             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1340
1341             p_pic->i_planes = 1;
1342
1343             break;
1344 #endif
1345
1346         default:
1347             /* Unknown chroma, tell the guy to get lost */
1348             IMAGE_FREE( p_pic->p_sys->p_image );
1349             free( p_pic->p_sys );
1350             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1351                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1352             p_pic->i_planes = 0;
1353             return -1;
1354     }
1355
1356     return 0;
1357 }
1358
1359 /*****************************************************************************
1360  * FreePicture: destroy a picture allocated with NewPicture
1361  *****************************************************************************
1362  * Destroy XImage AND associated data. If using Shm, detach shared memory
1363  * segment from server and process, then free it. The XDestroyImage manpage
1364  * says that both the image structure _and_ the data pointed to by the
1365  * image structure are freed, so no need to free p_image->data.
1366  *****************************************************************************/
1367 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1368 {
1369     /* The order of operations is correct */
1370 #ifdef HAVE_SYS_SHM_H
1371     if( p_vout->p_sys->b_shm )
1372     {
1373         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1374         IMAGE_FREE( p_pic->p_sys->p_image );
1375
1376         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1377         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1378         {
1379             msg_Err( p_vout, "cannot detach shared memory (%s)",
1380                              strerror(errno) );
1381         }
1382     }
1383     else
1384 #endif
1385     {
1386         IMAGE_FREE( p_pic->p_sys->p_image );
1387     }
1388
1389     /* Do NOT use XFlush here ! */
1390     XSync( p_vout->p_sys->p_display, False );
1391
1392     free( p_pic->p_sys );
1393 }
1394
1395 /*****************************************************************************
1396  * ToggleFullScreen: Enable or disable full screen mode
1397  *****************************************************************************
1398  * This function will switch between fullscreen and window mode.
1399  *****************************************************************************/
1400 static void ToggleFullScreen ( vout_thread_t *p_vout )
1401 {
1402     Atom prop;
1403     XEvent xevent;
1404     mwmhints_t mwmhints;
1405     XSetWindowAttributes attributes;
1406
1407 #ifdef HAVE_XINERAMA
1408     int i_d1, i_d2;
1409 #endif
1410
1411     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1412
1413     if( p_vout->b_fullscreen )
1414     {
1415         msg_Dbg( p_vout, "entering fullscreen mode" );
1416
1417         p_vout->p_sys->b_altfullscreen =
1418             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1419
1420         XUnmapWindow( p_vout->p_sys->p_display,
1421                       p_vout->p_sys->p_win->base_window);
1422
1423         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1424
1425         /* fullscreen window size and position */
1426         p_vout->p_sys->p_win->i_width =
1427             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1428         p_vout->p_sys->p_win->i_height =
1429             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1430
1431         CreateWindow( p_vout, p_vout->p_sys->p_win );
1432
1433         /* To my knowledge there are two ways to create a borderless window.
1434          * There's the generic way which is to tell x to bypass the window
1435          * manager, but this creates problems with the focus of other
1436          * applications.
1437          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1438          * luckily seems to be supported by most window managers. */
1439         if( !p_vout->p_sys->b_altfullscreen )
1440         {
1441             mwmhints.flags = MWM_HINTS_DECORATIONS;
1442             mwmhints.decorations = False;
1443
1444             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1445                                 False );
1446             XChangeProperty( p_vout->p_sys->p_display,
1447                              p_vout->p_sys->p_win->base_window,
1448                              prop, prop, 32, PropModeReplace,
1449                              (unsigned char *)&mwmhints,
1450                              PROP_MWM_HINTS_ELEMENTS );
1451         }
1452         else
1453         {
1454             /* brute force way to remove decorations */
1455             attributes.override_redirect = True;
1456             XChangeWindowAttributes( p_vout->p_sys->p_display,
1457                                      p_vout->p_sys->p_win->base_window,
1458                                      CWOverrideRedirect,
1459                                      &attributes);
1460
1461             /* Make sure the change is effective */
1462             XReparentWindow( p_vout->p_sys->p_display,
1463                              p_vout->p_sys->p_win->base_window,
1464                              DefaultRootWindow( p_vout->p_sys->p_display ),
1465                              0, 0 );
1466         }
1467
1468         if( p_vout->p_sys->b_net_wm_state_fullscreen )
1469         {
1470             XClientMessageEvent event;
1471
1472             memset( &event, 0, sizeof( XClientMessageEvent ) );
1473
1474             event.type = ClientMessage;
1475             event.message_type = p_vout->p_sys->net_wm_state;
1476             event.display = p_vout->p_sys->p_display;
1477             event.window = p_vout->p_sys->p_win->base_window;
1478             event.format = 32;
1479             event.data.l[ 0 ] = 1; /* set property */
1480             event.data.l[ 1 ] = p_vout->p_sys->net_wm_state_fullscreen;
1481
1482             XSendEvent( p_vout->p_sys->p_display,
1483                         DefaultRootWindow( p_vout->p_sys->p_display ),
1484                         False, SubstructureRedirectMask,
1485                         (XEvent*)&event );
1486         }
1487         else
1488         {
1489             /* Make sure the change is effective */
1490             XReparentWindow( p_vout->p_sys->p_display,
1491                              p_vout->p_sys->p_win->base_window,
1492                              DefaultRootWindow( p_vout->p_sys->p_display ),
1493                              0, 0 );
1494         }
1495
1496         /* fullscreen window size and position */
1497         p_vout->p_sys->p_win->i_width =
1498             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1499         p_vout->p_sys->p_win->i_height =
1500             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1501
1502         p_vout->p_sys->p_win->i_x = 0;
1503         p_vout->p_sys->p_win->i_y = 0;
1504
1505 #ifdef HAVE_XINERAMA
1506         if( XineramaQueryExtension( p_vout->p_sys->p_display, &i_d1, &i_d2 ) &&
1507             XineramaIsActive( p_vout->p_sys->p_display ) )
1508         {
1509             XineramaScreenInfo *screens;   /* infos for xinerama */
1510             int i_num_screens;
1511
1512             msg_Dbg( p_vout, "Using XFree Xinerama extension");
1513
1514 #define SCREEN p_vout->p_sys->p_win->i_screen
1515
1516             /* Get Informations about Xinerama (num of screens) */
1517             screens = XineramaQueryScreens( p_vout->p_sys->p_display,
1518                                             &i_num_screens );
1519
1520             if( !SCREEN )
1521                 SCREEN = config_GetInt( p_vout,
1522                                         MODULE_STRING "-xineramascreen" );
1523
1524             /* just check that user has entered a good value */
1525             if( SCREEN >= i_num_screens || SCREEN < 0 )
1526             {
1527                 msg_Dbg( p_vout, "requested screen number invalid" );
1528                 SCREEN = 0;
1529             }
1530
1531             /* Get the X/Y upper left corner coordinate of the above screen */
1532             p_vout->p_sys->p_win->i_x = screens[SCREEN].x_org;
1533             p_vout->p_sys->p_win->i_y = screens[SCREEN].y_org;
1534
1535             /* Set the Height/width to the screen resolution */
1536             p_vout->p_sys->p_win->i_width = screens[SCREEN].width;
1537             p_vout->p_sys->p_win->i_height = screens[SCREEN].height;
1538
1539             XFree(screens);
1540
1541 #undef SCREEN
1542
1543         }
1544 #endif
1545
1546         XMoveResizeWindow( p_vout->p_sys->p_display,
1547                            p_vout->p_sys->p_win->base_window,
1548                            p_vout->p_sys->p_win->i_x,
1549                            p_vout->p_sys->p_win->i_y,
1550                            p_vout->p_sys->p_win->i_width,
1551                            p_vout->p_sys->p_win->i_height );
1552     }
1553     else
1554     {
1555         msg_Dbg( p_vout, "leaving fullscreen mode" );
1556         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1557         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1558
1559         XMapWindow( p_vout->p_sys->p_display,
1560                     p_vout->p_sys->p_win->base_window);
1561     }
1562
1563     /* Unfortunately, using XSync() here is not enough to ensure the
1564      * window has already been mapped because the XMapWindow() request
1565      * has not necessarily been sent directly to our window (remember,
1566      * the call is first redirected to the window manager) */
1567     do
1568     {
1569         XWindowEvent( p_vout->p_sys->p_display,
1570                       p_vout->p_sys->p_win->base_window,
1571                       StructureNotifyMask, &xevent );
1572     } while( xevent.type != MapNotify );
1573
1574     /* Be careful, this can generate a BadMatch error if the window is not
1575      * already mapped by the server (see above) */
1576     XSetInputFocus(p_vout->p_sys->p_display,
1577                    p_vout->p_sys->p_win->base_window,
1578                    RevertToParent,
1579                    CurrentTime);
1580
1581     /* signal that the size needs to be updated */
1582     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1583 }
1584
1585 /*****************************************************************************
1586  * EnableXScreenSaver: enable screen saver
1587  *****************************************************************************
1588  * This function enables the screen saver on a display after it has been
1589  * disabled by XDisableScreenSaver.
1590  * FIXME: what happens if multiple vlc sessions are running at the same
1591  *        time ???
1592  *****************************************************************************/
1593 static void EnableXScreenSaver( vout_thread_t *p_vout )
1594 {
1595 #ifdef DPMSINFO_IN_DPMS_H
1596     int dummy;
1597 #endif
1598
1599     if( p_vout->p_sys->i_ss_timeout )
1600     {
1601         XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1602                          p_vout->p_sys->i_ss_interval,
1603                          p_vout->p_sys->i_ss_blanking,
1604                          p_vout->p_sys->i_ss_exposure );
1605     }
1606
1607     /* Restore DPMS settings */
1608 #ifdef DPMSINFO_IN_DPMS_H
1609     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1610     {
1611         if( p_vout->p_sys->b_ss_dpms )
1612         {
1613             DPMSEnable( p_vout->p_sys->p_display );
1614         }
1615     }
1616 #endif
1617 }
1618
1619 /*****************************************************************************
1620  * DisableXScreenSaver: disable screen saver
1621  *****************************************************************************
1622  * See XEnableXScreenSaver
1623  *****************************************************************************/
1624 static void DisableXScreenSaver( vout_thread_t *p_vout )
1625 {
1626 #ifdef DPMSINFO_IN_DPMS_H
1627     int dummy;
1628 #endif
1629
1630     /* Save screen saver informations */
1631     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1632                      &p_vout->p_sys->i_ss_interval,
1633                      &p_vout->p_sys->i_ss_blanking,
1634                      &p_vout->p_sys->i_ss_exposure );
1635
1636     /* Disable screen saver */
1637     if( p_vout->p_sys->i_ss_timeout )
1638     {
1639         XSetScreenSaver( p_vout->p_sys->p_display, 0,
1640                          p_vout->p_sys->i_ss_interval,
1641                          p_vout->p_sys->i_ss_blanking,
1642                          p_vout->p_sys->i_ss_exposure );
1643     }
1644
1645     /* Disable DPMS */
1646 #ifdef DPMSINFO_IN_DPMS_H
1647     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1648     {
1649         CARD16 unused;
1650         /* Save DPMS current state */
1651         DPMSInfo( p_vout->p_sys->p_display, &unused,
1652                   &p_vout->p_sys->b_ss_dpms );
1653         DPMSDisable( p_vout->p_sys->p_display );
1654    }
1655 #endif
1656 }
1657
1658 /*****************************************************************************
1659  * CreateCursor: create a blank mouse pointer
1660  *****************************************************************************/
1661 static void CreateCursor( vout_thread_t *p_vout )
1662 {
1663     XColor cursor_color;
1664
1665     p_vout->p_sys->cursor_pixmap =
1666         XCreatePixmap( p_vout->p_sys->p_display,
1667                        DefaultRootWindow( p_vout->p_sys->p_display ),
1668                        1, 1, 1 );
1669
1670     XParseColor( p_vout->p_sys->p_display,
1671                  XCreateColormap( p_vout->p_sys->p_display,
1672                                   DefaultRootWindow(
1673                                                     p_vout->p_sys->p_display ),
1674                                   DefaultVisual(
1675                                                 p_vout->p_sys->p_display,
1676                                                 p_vout->p_sys->i_screen ),
1677                                   AllocNone ),
1678                  "black", &cursor_color );
1679
1680     p_vout->p_sys->blank_cursor =
1681         XCreatePixmapCursor( p_vout->p_sys->p_display,
1682                              p_vout->p_sys->cursor_pixmap,
1683                              p_vout->p_sys->cursor_pixmap,
1684                              &cursor_color, &cursor_color, 1, 1 );
1685 }
1686
1687 /*****************************************************************************
1688  * DestroyCursor: destroy the blank mouse pointer
1689  *****************************************************************************/
1690 static void DestroyCursor( vout_thread_t *p_vout )
1691 {
1692     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1693 }
1694
1695 /*****************************************************************************
1696  * ToggleCursor: hide or show the mouse pointer
1697  *****************************************************************************
1698  * This function hides the X pointer if it is visible by setting the pointer
1699  * sprite to a blank one. To show it again, we disable the sprite.
1700  *****************************************************************************/
1701 static void ToggleCursor( vout_thread_t *p_vout )
1702 {
1703     if( p_vout->p_sys->b_mouse_pointer_visible )
1704     {
1705         XDefineCursor( p_vout->p_sys->p_display,
1706                        p_vout->p_sys->p_win->base_window,
1707                        p_vout->p_sys->blank_cursor );
1708         p_vout->p_sys->b_mouse_pointer_visible = 0;
1709     }
1710     else
1711     {
1712         XUndefineCursor( p_vout->p_sys->p_display,
1713                          p_vout->p_sys->p_win->base_window );
1714         p_vout->p_sys->b_mouse_pointer_visible = 1;
1715     }
1716 }
1717
1718 #ifdef MODULE_NAME_IS_xvideo
1719 /*****************************************************************************
1720  * XVideoGetPort: get YUV12 port
1721  *****************************************************************************/
1722 static int XVideoGetPort( vout_thread_t *p_vout,
1723                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1724 {
1725     XvAdaptorInfo *p_adaptor;
1726     unsigned int i;
1727     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1728     int i_selected_port;
1729
1730     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1731     {
1732         case Success:
1733             break;
1734
1735         case XvBadExtension:
1736             msg_Warn( p_vout, "XvBadExtension" );
1737             return -1;
1738
1739         case XvBadAlloc:
1740             msg_Warn( p_vout, "XvBadAlloc" );
1741             return -1;
1742
1743         default:
1744             msg_Warn( p_vout, "XvQueryExtension failed" );
1745             return -1;
1746     }
1747
1748     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1749                              DefaultRootWindow( p_vout->p_sys->p_display ),
1750                              &i_num_adaptors, &p_adaptor ) )
1751     {
1752         case Success:
1753             break;
1754
1755         case XvBadExtension:
1756             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1757             return -1;
1758
1759         case XvBadAlloc:
1760             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1761             return -1;
1762
1763         default:
1764             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1765             return -1;
1766     }
1767
1768     i_selected_port = -1;
1769     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1770
1771     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1772     {
1773         XvImageFormatValues *p_formats;
1774         int i_format, i_num_formats;
1775         int i_port;
1776
1777         /* If we requested an adaptor and it's not this one, we aren't
1778          * interested */
1779         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1780         {
1781             continue;
1782         }
1783
1784         /* If the adaptor doesn't have the required properties, skip it */
1785         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1786             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1787         {
1788             continue;
1789         }
1790
1791         /* Check that adaptor supports our requested format... */
1792         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1793                                         p_adaptor[i_adaptor].base_id,
1794                                         &i_num_formats );
1795
1796         for( i_format = 0;
1797              i_format < i_num_formats && ( i_selected_port == -1 );
1798              i_format++ )
1799         {
1800             /* Code removed, we can get this through xvinfo anyway */
1801 #if 0
1802             XvEncodingInfo  *p_enc;
1803             int             i_enc, i_num_encodings;
1804             XvAttribute     *p_attr;
1805             int             i_attr, i_num_attributes;
1806 #endif
1807
1808             /* If this is not the format we want, or at least a
1809              * similar one, forget it */
1810             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1811             {
1812                 continue;
1813             }
1814
1815             /* Look for the first available port supporting this format */
1816             for( i_port = p_adaptor[i_adaptor].base_id;
1817                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1818                                    + p_adaptor[i_adaptor].num_ports) )
1819                    && ( i_selected_port == -1 );
1820                  i_port++ )
1821             {
1822                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1823                      == Success )
1824                 {
1825                     i_selected_port = i_port;
1826                     *pi_newchroma = p_formats[ i_format ].id;
1827                 }
1828             }
1829
1830             /* If no free port was found, forget it */
1831             if( i_selected_port == -1 )
1832             {
1833                 continue;
1834             }
1835
1836             /* If we found a port, print information about it */
1837             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1838                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1839                      (char *)&p_formats[ i_format ].id,
1840                      ( p_formats[ i_format ].format == XvPacked ) ?
1841                          "packed" : "planar" );
1842
1843 #if 0
1844             msg_Dbg( p_vout, " encoding list:" );
1845
1846             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1847                                   &i_num_encodings, &p_enc )
1848                  != Success )
1849             {
1850                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1851                 continue;
1852             }
1853
1854             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1855             {
1856                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1857                                       " numerator=%d, denominator=%d",
1858                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1859                              p_enc[i_enc].width, p_enc[i_enc].height,
1860                              p_enc[i_enc].rate.numerator,
1861                              p_enc[i_enc].rate.denominator );
1862             }
1863
1864             if( p_enc != NULL )
1865             {
1866                 XvFreeEncodingInfo( p_enc );
1867             }
1868
1869             msg_Dbg( p_vout, " attribute list:" );
1870             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1871                                             i_selected_port,
1872                                             &i_num_attributes );
1873             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1874             {
1875                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1876                       p_attr[i_attr].name,
1877                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1878                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1879                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1880             }
1881
1882             if( p_attr != NULL )
1883             {
1884                 XFree( p_attr );
1885             }
1886 #endif
1887         }
1888
1889         if( p_formats != NULL )
1890         {
1891             XFree( p_formats );
1892         }
1893
1894     }
1895
1896     if( i_num_adaptors > 0 )
1897     {
1898         XvFreeAdaptorInfo( p_adaptor );
1899     }
1900
1901     if( i_selected_port == -1 )
1902     {
1903         int i_chroma_tmp = X112VLC_FOURCC( i_chroma );
1904         if( i_requested_adaptor == -1 )
1905         {
1906             msg_Warn( p_vout, "no free XVideo port found for format "
1907                       "0x%.8x (%4.4s)", i_chroma_tmp, (char*)&i_chroma_tmp );
1908         }
1909         else
1910         {
1911             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1912                       "XVideo port for format 0x%.8x (%4.4s)",
1913                       i_requested_adaptor, i_chroma_tmp, (char*)&i_chroma_tmp );
1914         }
1915     }
1916
1917     return i_selected_port;
1918 }
1919
1920 /*****************************************************************************
1921  * XVideoReleasePort: release YUV12 port
1922  *****************************************************************************/
1923 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1924 {
1925     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1926 }
1927 #endif
1928
1929 /*****************************************************************************
1930  * InitDisplay: open and initialize X11 device
1931  *****************************************************************************
1932  * Create a window according to video output given size, and set other
1933  * properties according to the display properties.
1934  *****************************************************************************/
1935 static int InitDisplay( vout_thread_t *p_vout )
1936 {
1937 #ifdef MODULE_NAME_IS_x11
1938     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1939     XVisualInfo *               p_xvisual;           /* visuals informations */
1940     XVisualInfo                 xvisual_template;         /* visual template */
1941     int                         i_count;                       /* array size */
1942 #endif
1943
1944 #ifdef HAVE_SYS_SHM_H
1945     p_vout->p_sys->b_shm = 0;
1946
1947     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1948     {
1949 #   ifdef SYS_DARWIN
1950         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1951 #   else
1952         p_vout->p_sys->b_shm =
1953                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1954 #   endif
1955
1956         if( !p_vout->p_sys->b_shm )
1957         {
1958             msg_Warn( p_vout, "XShm video extension is unavailable" );
1959         }
1960     }
1961     else
1962     {
1963         msg_Dbg( p_vout, "disabling XShm video extension" );
1964     }
1965
1966 #else
1967     msg_Warn( p_vout, "XShm video extension is unavailable" );
1968
1969 #endif
1970
1971 #ifdef MODULE_NAME_IS_xvideo
1972     /* XXX The brightness and contrast values should be read from environment
1973      * XXX variables... */
1974 #if 0
1975     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1976     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1977 #endif
1978 #endif
1979
1980 #ifdef MODULE_NAME_IS_x11
1981     /* Initialize structure */
1982     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1983
1984     /* Get screen depth */
1985     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1986                                                    p_vout->p_sys->i_screen );
1987     switch( p_vout->p_sys->i_screen_depth )
1988     {
1989     case 8:
1990         /*
1991          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1992          */
1993         xvisual_template.screen =   p_vout->p_sys->i_screen;
1994         xvisual_template.class =    DirectColor;
1995         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1996                                     VisualScreenMask | VisualClassMask,
1997                                     &xvisual_template, &i_count );
1998         if( p_xvisual == NULL )
1999         {
2000             msg_Err( p_vout, "no PseudoColor visual available" );
2001             return VLC_EGENERIC;
2002         }
2003         p_vout->p_sys->i_bytes_per_pixel = 1;
2004         p_vout->output.pf_setpalette = SetPalette;
2005         break;
2006     case 15:
2007     case 16:
2008     case 24:
2009     default:
2010         /*
2011          * Screen depth is higher than 8bpp. TrueColor visual is used.
2012          */
2013         xvisual_template.screen =   p_vout->p_sys->i_screen;
2014         xvisual_template.class =    TrueColor;
2015         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
2016                                     VisualScreenMask | VisualClassMask,
2017                                     &xvisual_template, &i_count );
2018         if( p_xvisual == NULL )
2019         {
2020             msg_Err( p_vout, "no TrueColor visual available" );
2021             return VLC_EGENERIC;
2022         }
2023
2024         p_vout->output.i_rmask = p_xvisual->red_mask;
2025         p_vout->output.i_gmask = p_xvisual->green_mask;
2026         p_vout->output.i_bmask = p_xvisual->blue_mask;
2027
2028         /* There is no difference yet between 3 and 4 Bpp. The only way
2029          * to find the actual number of bytes per pixel is to list supported
2030          * pixmap formats. */
2031         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
2032         p_vout->p_sys->i_bytes_per_pixel = 0;
2033
2034         for( ; i_count-- ; p_formats++ )
2035         {
2036             /* Under XFree4.0, the list contains pixmap formats available
2037              * through all video depths ; so we have to check against current
2038              * depth. */
2039             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
2040             {
2041                 if( p_formats->bits_per_pixel / 8
2042                         > (int)p_vout->p_sys->i_bytes_per_pixel )
2043                 {
2044                     p_vout->p_sys->i_bytes_per_pixel =
2045                                                p_formats->bits_per_pixel / 8;
2046                 }
2047             }
2048         }
2049         break;
2050     }
2051     p_vout->p_sys->p_visual = p_xvisual->visual;
2052     XFree( p_xvisual );
2053 #endif
2054
2055     return VLC_SUCCESS;
2056 }
2057
2058 #ifdef HAVE_SYS_SHM_H
2059 /*****************************************************************************
2060  * CreateShmImage: create an XImage or XvImage using shared memory extension
2061  *****************************************************************************
2062  * Prepare an XImage or XvImage for display function.
2063  * The order of the operations respects the recommandations of the mit-shm
2064  * document by J.Corbet and K.Packard. Most of the parameters were copied from
2065  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
2066  *****************************************************************************/
2067 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
2068                                     Display* p_display, EXTRA_ARGS_SHM,
2069                                     int i_width, int i_height )
2070 {
2071     IMAGE_TYPE *p_image;
2072
2073     /* Create XImage / XvImage */
2074 #ifdef MODULE_NAME_IS_xvideo
2075     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
2076                                 i_width, i_height, p_shm );
2077 #else
2078     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2079                                p_shm, i_width, i_height );
2080 #endif
2081     if( p_image == NULL )
2082     {
2083         msg_Err( p_vout, "image creation failed" );
2084         return NULL;
2085     }
2086
2087     /* Allocate shared memory segment - 0776 set the access permission
2088      * rights (like umask), they are not yet supported by all X servers */
2089     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
2090     if( p_shm->shmid < 0 )
2091     {
2092         msg_Err( p_vout, "cannot allocate shared image data (%s)",
2093                          strerror( errno ) );
2094         IMAGE_FREE( p_image );
2095         return NULL;
2096     }
2097
2098     /* Attach shared memory segment to process (read/write) */
2099     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
2100     if(! p_shm->shmaddr )
2101     {
2102         msg_Err( p_vout, "cannot attach shared memory (%s)",
2103                          strerror(errno));
2104         IMAGE_FREE( p_image );
2105         shmctl( p_shm->shmid, IPC_RMID, 0 );
2106         return NULL;
2107     }
2108
2109     /* Read-only data. We won't be using XShmGetImage */
2110     p_shm->readOnly = True;
2111
2112     /* Attach shared memory segment to X server */
2113     if( XShmAttach( p_display, p_shm ) == False )
2114     {
2115         msg_Err( p_vout, "cannot attach shared memory to X server" );
2116         IMAGE_FREE( p_image );
2117         shmctl( p_shm->shmid, IPC_RMID, 0 );
2118         shmdt( p_shm->shmaddr );
2119         return NULL;
2120     }
2121
2122     /* Send image to X server. This instruction is required, since having
2123      * built a Shm XImage and not using it causes an error on XCloseDisplay,
2124      * and remember NOT to use XFlush ! */
2125     XSync( p_display, False );
2126
2127 #if 0
2128     /* Mark the shm segment to be removed when there are no more
2129      * attachements, so it is automatic on process exit or after shmdt */
2130     shmctl( p_shm->shmid, IPC_RMID, 0 );
2131 #endif
2132
2133     return p_image;
2134 }
2135 #endif
2136
2137 /*****************************************************************************
2138  * CreateImage: create an XImage or XvImage
2139  *****************************************************************************
2140  * Create a simple image used as a buffer.
2141  *****************************************************************************/
2142 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
2143                                  Display *p_display, EXTRA_ARGS,
2144                                  int i_width, int i_height )
2145 {
2146     byte_t *    p_data;                           /* image data storage zone */
2147     IMAGE_TYPE *p_image;
2148 #ifdef MODULE_NAME_IS_x11
2149     int         i_quantum;                     /* XImage quantum (see below) */
2150     int         i_bytes_per_line;
2151 #endif
2152
2153     /* Allocate memory for image */
2154 #ifdef MODULE_NAME_IS_xvideo
2155     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
2156 #else
2157     i_bytes_per_line = i_width * i_bytes_per_pixel;
2158     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
2159 #endif
2160     if( !p_data )
2161     {
2162         msg_Err( p_vout, "out of memory" );
2163         return NULL;
2164     }
2165
2166 #ifdef MODULE_NAME_IS_x11
2167     /* Optimize the quantum of a scanline regarding its size - the quantum is
2168        a diviser of the number of bits between the start of two scanlines. */
2169     if( i_bytes_per_line & 0xf )
2170     {
2171         i_quantum = 0x8;
2172     }
2173     else if( i_bytes_per_line & 0x10 )
2174     {
2175         i_quantum = 0x10;
2176     }
2177     else
2178     {
2179         i_quantum = 0x20;
2180     }
2181 #endif
2182
2183     /* Create XImage. p_data will be automatically freed */
2184 #ifdef MODULE_NAME_IS_xvideo
2185     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2186                              p_data, i_width, i_height );
2187 #else
2188     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2189                             p_data, i_width, i_height, i_quantum, 0 );
2190 #endif
2191     if( p_image == NULL )
2192     {
2193         msg_Err( p_vout, "XCreateImage() failed" );
2194         free( p_data );
2195         return NULL;
2196     }
2197
2198     return p_image;
2199 }
2200
2201 #ifdef MODULE_NAME_IS_x11
2202 /*****************************************************************************
2203  * SetPalette: sets an 8 bpp palette
2204  *****************************************************************************
2205  * This function sets the palette given as an argument. It does not return
2206  * anything, but could later send information on which colors it was unable
2207  * to set.
2208  *****************************************************************************/
2209 static void SetPalette( vout_thread_t *p_vout,
2210                         uint16_t *red, uint16_t *green, uint16_t *blue )
2211 {
2212     int i;
2213     XColor p_colors[255];
2214
2215     /* allocate palette */
2216     for( i = 0; i < 255; i++ )
2217     {
2218         /* kludge: colors are indexed reversely because color 255 seems
2219          * to be reserved for black even if we try to set it to white */
2220         p_colors[ i ].pixel = 255 - i;
2221         p_colors[ i ].pad   = 0;
2222         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2223         p_colors[ i ].red   = red[ 255 - i ];
2224         p_colors[ i ].blue  = blue[ 255 - i ];
2225         p_colors[ i ].green = green[ 255 - i ];
2226     }
2227
2228     XStoreColors( p_vout->p_sys->p_display,
2229                   p_vout->p_sys->colormap, p_colors, 255 );
2230 }
2231 #endif
2232
2233 /*****************************************************************************
2234  * TestNetWMSupport: tests for Extended Window Manager Hints support
2235  *****************************************************************************/
2236 static void TestNetWMSupport( vout_thread_t *p_vout )
2237 {
2238     int i_ret, i_format;
2239     unsigned long i, i_items, i_bytesafter;
2240     Atom net_wm_supported, *p_args = NULL;
2241
2242     p_vout->p_sys->b_net_wm_state_fullscreen = VLC_FALSE;
2243     p_vout->p_sys->b_net_wm_state_above = VLC_FALSE;
2244     p_vout->p_sys->b_net_wm_state_below = VLC_FALSE;
2245     p_vout->p_sys->b_net_wm_state_stays_on_top = VLC_FALSE;
2246
2247     net_wm_supported =
2248         XInternAtom( p_vout->p_sys->p_display, "_NET_SUPPORTED", False );
2249
2250     i_ret = XGetWindowProperty( p_vout->p_sys->p_display,
2251                                 DefaultRootWindow( p_vout->p_sys->p_display ),
2252                                 net_wm_supported,
2253                                 0, 16384, False, AnyPropertyType,
2254                                 &net_wm_supported,
2255                                 &i_format, &i_items, &i_bytesafter,
2256                                 (unsigned char **)&p_args );
2257
2258     if( i_ret != Success || i_items == 0 ) return;
2259
2260     msg_Dbg( p_vout, "Window manager supports NetWM" );
2261
2262     p_vout->p_sys->net_wm_state =
2263         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE", False );
2264     p_vout->p_sys->net_wm_state_fullscreen =
2265         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_FULLSCREEN",
2266                      False );
2267     p_vout->p_sys->net_wm_state_above =
2268         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_ABOVE", False );
2269     p_vout->p_sys->net_wm_state_below =
2270         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_BELOW", False );
2271     p_vout->p_sys->net_wm_state_stays_on_top =
2272         XInternAtom( p_vout->p_sys->p_display, "_NET_WM_STATE_STAYS_ON_TOP",
2273                      False );
2274
2275     for( i = 0; i < i_items; i++ )
2276     {
2277         if( p_args[i] == p_vout->p_sys->net_wm_state_fullscreen )
2278         {
2279             msg_Dbg( p_vout,
2280                      "Window manager supports _NET_WM_STATE_FULLSCREEN" );
2281             p_vout->p_sys->b_net_wm_state_fullscreen = VLC_TRUE;
2282         }
2283         else if( p_args[i] == p_vout->p_sys->net_wm_state_above )
2284         {
2285             msg_Dbg( p_vout, "Window manager supports _NET_WM_STATE_ABOVE" );
2286             p_vout->p_sys->b_net_wm_state_above = VLC_TRUE;
2287         }
2288         else if( p_args[i] == p_vout->p_sys->net_wm_state_below )
2289         {
2290             msg_Dbg( p_vout, "Window manager supports _NET_WM_STATE_BELOW" );
2291             p_vout->p_sys->b_net_wm_state_below = VLC_TRUE;
2292         }
2293         else if( p_args[i] == p_vout->p_sys->net_wm_state_stays_on_top )
2294         {
2295             msg_Dbg( p_vout,
2296                      "Window manager supports _NET_WM_STATE_STAYS_ON_TOP" );
2297             p_vout->p_sys->b_net_wm_state_stays_on_top = VLC_TRUE;
2298         }
2299     }
2300
2301     XFree( p_args );
2302 }