git.sesse.net Git - vlc/blob - plugins/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 1.46 2002/07/31 20:56:52 sam 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/Xutil.h>
  55 #include <X11/keysym.h>
  56 #ifdef HAVE_SYS_SHM_H
  57 #   include <X11/extensions/XShm.h>
  58 #endif
  59 #ifdef DPMSINFO_IN_DPMS_H
  60 #   include <X11/extensions/dpms.h>
  61 #endif
  62
  63 #ifdef MODULE_NAME_IS_xvideo
  64 #   include <X11/extensions/Xv.h>
  65 #   include <X11/extensions/Xvlib.h>
  66 #endif
  67
  68 #include "netutils.h"                                 /* network_ChannelJoin */
  69
  70 #include "xcommon.h"
  71
  72 /*****************************************************************************
  73  * Local prototypes
  74  *****************************************************************************/
  75 int  E_(Activate)   ( vlc_object_t * );
  76 void E_(Deactivate) ( vlc_object_t * );
  77
  78 static int  InitVideo      ( vout_thread_t * );
  79 static void EndVideo       ( vout_thread_t * );
  80 static void DisplayVideo   ( vout_thread_t *, picture_t * );
  81 static int  ManageVideo    ( vout_thread_t * );
  82
  83 static int  InitDisplay    ( vout_thread_t * );
  84
  85 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
  86 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
  87
  88 static int  NewPicture     ( vout_thread_t *, picture_t * );
  89 static void FreePicture    ( vout_thread_t *, picture_t * );
  90
  91 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
  92                                     Display *, EXTRA_ARGS, int, int );
  93 #ifdef HAVE_SYS_SHM_H
  94 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
  95                                     Display *, EXTRA_ARGS_SHM, int, int );
  96 #endif
  97
  98 static void ToggleFullScreen      ( vout_thread_t * );
  99
 100 static void EnableXScreenSaver    ( vout_thread_t * );
 101 static void DisableXScreenSaver   ( vout_thread_t * );
 102
 103 static void CreateCursor   ( vout_thread_t * );
 104 static void DestroyCursor  ( vout_thread_t * );
 105 static void ToggleCursor   ( vout_thread_t * );
 106
 107 #ifdef MODULE_NAME_IS_xvideo
 108 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
 109 static void XVideoReleasePort( vout_thread_t *, int );
 110 #endif
 111
 112 #ifdef MODULE_NAME_IS_x11
 113 static void SetPalette     ( vout_thread_t *, u16 *, u16 *, u16 * );
 114 #endif
 115
 116 /*****************************************************************************
 117  * Activate: allocate X11 video thread output method
 118  *****************************************************************************
 119  * This function allocate and initialize a X11 vout method. It uses some of the
 120  * vout properties to choose the window size, and change them according to the
 121  * actual properties of the display.
 122  *****************************************************************************/
 123 int E_(Activate) ( vlc_object_t *p_this )
 124 {
 125     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 126     char *       psz_display;
 127 #ifdef MODULE_NAME_IS_xvideo
 128     char *       psz_chroma;
 129     vlc_fourcc_t i_chroma = 0;
 130     vlc_bool_t   b_chroma = 0;
 131 #endif
 132
 133     p_vout->pf_init = InitVideo;
 134     p_vout->pf_end = EndVideo;
 135     p_vout->pf_manage = ManageVideo;
 136     p_vout->pf_render = NULL;
 137     p_vout->pf_display = DisplayVideo;
 138
 139     /* Allocate structure */
 140     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 141     if( p_vout->p_sys == NULL )
 142     {
 143         msg_Err( p_vout, "out of memory" );
 144         return( 1 );
 145     }
 146
 147     /* Open display, unsing the "display" config variable or the DISPLAY
 148      * environment variable */
 149     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
 150
 151     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 152
 153     if( p_vout->p_sys->p_display == NULL )                          /* error */
 154     {
 155         msg_Err( p_vout, "cannot open display %s",
 156                          XDisplayName( psz_display ) );
 157         free( p_vout->p_sys );
 158         if( psz_display ) free( psz_display );
 159         return( 1 );
 160     }
 161     if( psz_display ) free( psz_display );
 162
 163     /* Get a screen ID matching the XOpenDisplay return value */
 164     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 165
 166 #ifdef MODULE_NAME_IS_xvideo
 167     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
 168     if( psz_chroma )
 169     {
 170         if( strlen( psz_chroma ) >= 4 )
 171         {
 172             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
 173             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
 174             i_chroma |= (unsigned char)psz_chroma[2] << 16;
 175             i_chroma |= (unsigned char)psz_chroma[3] << 24;
 176
 177             b_chroma = 1;
 178         }
 179
 180         free( psz_chroma );
 181     }
 182
 183     if( b_chroma )
 184     {
 185         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
 186                  i_chroma, (char*)&i_chroma );
 187     }
 188     else
 189     {
 190         i_chroma = p_vout->render.i_chroma;
 191     }
 192
 193     /* Check that we have access to an XVideo port providing this chroma */
 194     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
 195                                              &p_vout->output.i_chroma );
 196     if( p_vout->p_sys->i_xvport < 0 )
 197     {
 198         /* If a specific chroma format was requested, then we don't try to
 199          * be cleverer than the user. He knows pretty well what he wants. */
 200         if( b_chroma )
 201         {
 202             XCloseDisplay( p_vout->p_sys->p_display );
 203             free( p_vout->p_sys );
 204             return 1;
 205         }
 206
 207         /* It failed, but it's not completely lost ! We try to open an
 208          * XVideo port for an YUY2 picture. We'll need to do an YUV
 209          * conversion, but at least it has got scaling. */
 210         p_vout->p_sys->i_xvport =
 211                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
 212                                                &p_vout->output.i_chroma );
 213         if( p_vout->p_sys->i_xvport < 0 )
 214         {
 215             /* It failed, but it's not completely lost ! We try to open an
 216              * XVideo port for a simple 16bpp RGB picture. We'll need to do
 217              * an YUV conversion, but at least it has got scaling. */
 218             p_vout->p_sys->i_xvport =
 219                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
 220                                                    &p_vout->output.i_chroma );
 221             if( p_vout->p_sys->i_xvport < 0 )
 222             {
 223                 XCloseDisplay( p_vout->p_sys->p_display );
 224                 free( p_vout->p_sys );
 225                 return 1;
 226             }
 227         }
 228     }
 229 #endif
 230
 231     /* Create blank cursor (for mouse cursor autohiding) */
 232     p_vout->p_sys->i_time_mouse_last_moved = mdate();
 233     p_vout->p_sys->b_mouse_pointer_visible = 1;
 234     CreateCursor( p_vout );
 235
 236     /* Set main window's size */
 237     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
 238     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
 239
 240     /* Spawn base window - this window will include the video output window,
 241      * but also command buttons, subtitles and other indicators */
 242     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
 243     {
 244         msg_Err( p_vout, "cannot create X11 window" );
 245         DestroyCursor( p_vout );
 246         XCloseDisplay( p_vout->p_sys->p_display );
 247         free( p_vout->p_sys );
 248         return( 1 );
 249     }
 250
 251     /* Open and initialize device. */
 252     if( InitDisplay( p_vout ) )
 253     {
 254         msg_Err( p_vout, "cannot initialize X11 display" );
 255         DestroyCursor( p_vout );
 256         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 257         XCloseDisplay( p_vout->p_sys->p_display );
 258         free( p_vout->p_sys );
 259         return( 1 );
 260     }
 261
 262     /* Disable screen saver */
 263     DisableXScreenSaver( p_vout );
 264
 265     /* Misc init */
 266     p_vout->p_sys->b_altfullscreen = 0;
 267     p_vout->p_sys->i_time_button_last_pressed = 0;
 268
 269     return( 0 );
 270 }
 271
 272 /*****************************************************************************
 273  * Deactivate: destroy X11 video thread output method
 274  *****************************************************************************
 275  * Terminate an output method created by Open
 276  *****************************************************************************/
 277 void E_(Deactivate) ( vlc_object_t *p_this )
 278 {
 279     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 280
 281     /* If the fullscreen window is still open, close it */
 282     if( p_vout->b_fullscreen )
 283     {
 284         ToggleFullScreen( p_vout );
 285     }
 286
 287     /* Restore cursor if it was blanked */
 288     if( !p_vout->p_sys->b_mouse_pointer_visible )
 289     {
 290         ToggleCursor( p_vout );
 291     }
 292
 293 #ifdef MODULE_NAME_IS_x11
 294     /* Destroy colormap */
 295     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 296     {
 297         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 298     }
 299 #else
 300     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
 301 #endif
 302
 303     DestroyCursor( p_vout );
 304     EnableXScreenSaver( p_vout );
 305     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 306
 307     XCloseDisplay( p_vout->p_sys->p_display );
 308
 309     /* Destroy structure */
 310     free( p_vout->p_sys );
 311 }
 312
 313 /*****************************************************************************
 314  * InitVideo: initialize X11 video thread output method
 315  *****************************************************************************
 316  * This function create the XImages needed by the output thread. It is called
 317  * at the beginning of the thread, but also each time the window is resized.
 318  *****************************************************************************/
 319 static int InitVideo( vout_thread_t *p_vout )
 320 {
 321     int i_index;
 322     picture_t *p_pic;
 323
 324     I_OUTPUTPICTURES = 0;
 325
 326 #ifdef MODULE_NAME_IS_xvideo
 327     /* Initialize the output structure; we already found an XVideo port,
 328      * and the corresponding chroma we will be using. Since we can
 329      * arbitrary scale, stick to the coordinates and aspect. */
 330     p_vout->output.i_width  = p_vout->render.i_width;
 331     p_vout->output.i_height = p_vout->render.i_height;
 332     p_vout->output.i_aspect = p_vout->render.i_aspect;
 333
 334     switch( p_vout->output.i_chroma )
 335     {
 336         case VLC_FOURCC('R','V','1','5'):
 337             p_vout->output.i_rmask = 0x001f;
 338             p_vout->output.i_gmask = 0x07e0;
 339             p_vout->output.i_bmask = 0xf800;
 340             break;
 341         case VLC_FOURCC('R','V','1','6'):
 342             p_vout->output.i_rmask = 0x001f;
 343             p_vout->output.i_gmask = 0x03e0;
 344             p_vout->output.i_bmask = 0x7c00;
 345             break;
 346     }
 347
 348 #else
 349     /* Initialize the output structure: RGB with square pixels, whatever
 350      * the input format is, since it's the only format we know */
 351     switch( p_vout->p_sys->i_screen_depth )
 352     {
 353         case 8: /* FIXME: set the palette */
 354             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
 355         case 15:
 356             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
 357         case 16:
 358             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
 359         case 24:
 360             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 361         case 32:
 362             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 363         default:
 364             msg_Err( p_vout, "unknown screen depth %i",
 365                      p_vout->p_sys->i_screen_depth );
 366             return( 0 );
 367     }
 368
 369     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 370                        p_vout->p_sys->p_win->i_height,
 371                        &i_index, &i_index,
 372                        &p_vout->output.i_width, &p_vout->output.i_height );
 373
 374     /* Assume we have square pixels */
 375     p_vout->output.i_aspect = p_vout->output.i_width
 376                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
 377 #endif
 378
 379     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 380     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 381     {
 382         p_pic = NULL;
 383
 384         /* Find an empty picture slot */
 385         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 386         {
 387           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 388             {
 389                 p_pic = p_vout->p_picture + i_index;
 390                 break;
 391             }
 392         }
 393
 394         /* Allocate the picture */
 395         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 396         {
 397             break;
 398         }
 399
 400         p_pic->i_status = DESTROYED_PICTURE;
 401         p_pic->i_type   = DIRECT_PICTURE;
 402
 403         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 404
 405         I_OUTPUTPICTURES++;
 406     }
 407
 408     return( 0 );
 409 }
 410
 411  /*****************************************************************************
 412  * DisplayVideo: displays previously rendered output
 413  *****************************************************************************
 414  * This function sends the currently rendered image to X11 server.
 415  * (The Xv extension takes care of "double-buffering".)
 416  *****************************************************************************/
 417 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 418 {
 419     int i_width, i_height, i_x, i_y;
 420
 421     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 422                        p_vout->p_sys->p_win->i_height,
 423                        &i_x, &i_y, &i_width, &i_height );
 424
 425 #ifdef HAVE_SYS_SHM_H
 426     if( p_vout->p_sys->b_shm )
 427     {
 428         /* Display rendered image using shared memory extension */
 429 #   ifdef MODULE_NAME_IS_xvideo
 430         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 431                        p_vout->p_sys->p_win->video_window,
 432                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 433                        0 /*src_x*/, 0 /*src_y*/,
 434                        p_vout->output.i_width, p_vout->output.i_height,
 435                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 436                        False /* Don't put True here or you'll waste your CPU */ );
 437 #   else
 438         XShmPutImage( p_vout->p_sys->p_display,
 439                       p_vout->p_sys->p_win->video_window,
 440                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 441                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 442                       p_vout->output.i_width, p_vout->output.i_height,
 443                       False /* Don't put True here ! */ );
 444 #   endif
 445     }
 446     else
 447 #endif /* HAVE_SYS_SHM_H */
 448     {
 449         /* Use standard XPutImage -- this is gonna be slow ! */
 450 #ifdef MODULE_NAME_IS_xvideo
 451         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 452                     p_vout->p_sys->p_win->video_window,
 453                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 454                     0 /*src_x*/, 0 /*src_y*/,
 455                     p_vout->output.i_width, p_vout->output.i_height,
 456                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 457 #else
 458         XPutImage( p_vout->p_sys->p_display,
 459                    p_vout->p_sys->p_win->video_window,
 460                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 461                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 462                    p_vout->output.i_width, p_vout->output.i_height );
 463 #endif
 464     }
 465
 466     /* Make sure the command is sent now - do NOT use XFlush !*/
 467     XSync( p_vout->p_sys->p_display, False );
 468 }
 469
 470 /*****************************************************************************
 471  * ManageVideo: handle X11 events
 472  *****************************************************************************
 473  * This function should be called regularly by video output thread. It manages
 474  * X11 events and allows window resizing. It returns a non null value on
 475  * error.
 476  *****************************************************************************/
 477 static int ManageVideo( vout_thread_t *p_vout )
 478 {
 479     XEvent      xevent;                                         /* X11 event */
 480     char        i_key;                                    /* ISO Latin-1 key */
 481     KeySym      x_key_symbol;
 482
 483     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 484      * output window's size changed, MapNotify and UnmapNotify to know if the
 485      * window is mapped (and if the display is useful), and ClientMessages
 486      * to intercept window destruction requests */
 487
 488     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 489                               p_vout->p_sys->p_win->base_window,
 490                               StructureNotifyMask | KeyPressMask |
 491                               ButtonPressMask | ButtonReleaseMask |
 492                               PointerMotionMask | Button1MotionMask , &xevent )
 493            == True )
 494     {
 495         /* ConfigureNotify event: prepare  */
 496         if( xevent.type == ConfigureNotify )
 497         {
 498             if( (xevent.xconfigure.width != p_vout->p_sys->p_win->i_width)
 499               || (xevent.xconfigure.height != p_vout->p_sys->p_win->i_height) )
 500             {
 501                 /* Update dimensions */
 502                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
 503                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
 504                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
 505             }
 506         }
 507         /* Keyboard event */
 508         else if( xevent.type == KeyPress )
 509         {
 510             /* We may have keys like F1 trough F12, ESC ... */
 511             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 512                                              xevent.xkey.keycode, 0 );
 513             switch( x_key_symbol )
 514             {
 515             case XK_Escape:
 516                 if( p_vout->b_fullscreen )
 517                 {
 518                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 519                 }
 520                 else
 521                 {
 522                     p_vout->p_vlc->b_die = 1;
 523                 }
 524                 break;
 525             case XK_Menu:
 526                 {
 527                     intf_thread_t *p_intf;
 528                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 529                                                       FIND_ANYWHERE );
 530                     if( p_intf )
 531                     {
 532                         p_intf->b_menu_change = 1;
 533                         vlc_object_release( p_intf );
 534                     }
 535                 }
 536                 break;
 537             case XK_Left:
 538                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 539                 break;
 540             case XK_Right:
 541                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 542                 break;
 543             case XK_Up:
 544                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 545                 break;
 546             case XK_Down:
 547                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 548                 break;
 549             case XK_Home:
 550                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
 551                 break;
 552             case XK_End:
 553                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
 554                 break;
 555             case XK_Page_Up:
 556                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 557                 break;
 558             case XK_Page_Down:
 559                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 560                 break;
 561             case XK_space:
 562                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
 563                 break;
 564
 565             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
 566             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
 567             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
 568             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
 569             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
 570             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
 571             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
 572             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
 573             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
 574             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
 575             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
 576             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
 577
 578             default:
 579                 /* "Normal Keys"
 580                  * The reason why I use this instead of XK_0 is that
 581                  * with XLookupString, we don't have to care about
 582                  * keymaps. */
 583
 584                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 585                 {
 586                     /* FIXME: handle stuff here */
 587                     switch( i_key )
 588                     {
 589                     case 'q':
 590                     case 'Q':
 591                         p_vout->p_vlc->b_die = 1;
 592                         break;
 593                     case 'f':
 594                     case 'F':
 595                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 596                         break;
 597
 598                     default:
 599                         break;
 600                     }
 601                 }
 602                 break;
 603             }
 604         }
 605         /* Mouse click */
 606         else if( xevent.type == ButtonPress )
 607         {
 608             int i_width, i_height, i_x, i_y;
 609
 610             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 611                                p_vout->p_sys->p_win->i_height,
 612                                &i_x, &i_y, &i_width, &i_height );
 613
 614             p_vout->i_mouse_x = ( xevent.xmotion.x - i_x )
 615                 * p_vout->render.i_width / i_width;
 616             p_vout->i_mouse_y = ( xevent.xmotion.y - i_y )
 617                 * p_vout->render.i_height / i_height;
 618             p_vout->i_mouse_button = 1;
 619
 620             switch( ((XButtonEvent *)&xevent)->button )
 621             {
 622                 case Button1:
 623                     /* In this part we will eventually manage
 624                      * clicks for DVD navigation for instance. */
 625
 626                     /* detect double-clicks */
 627                     if( ( ((XButtonEvent *)&xevent)->time -
 628                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 629                     {
 630                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 631                     }
 632
 633                     p_vout->p_sys->i_time_button_last_pressed =
 634                         ((XButtonEvent *)&xevent)->time;
 635                     break;
 636
 637                 case Button4:
 638                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 639                     break;
 640
 641                 case Button5:
 642                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 643                     break;
 644             }
 645         }
 646         /* Mouse release */
 647         else if( xevent.type == ButtonRelease )
 648         {
 649             switch( ((XButtonEvent *)&xevent)->button )
 650             {
 651                 case Button3:
 652                     {
 653                         intf_thread_t *p_intf;
 654                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 655                                                           FIND_ANYWHERE );
 656                         if( p_intf )
 657                         {
 658                             p_intf->b_menu_change = 1;
 659                             vlc_object_release( p_intf );
 660                         }
 661                     }
 662                     break;
 663             }
 664         }
 665         /* Mouse move */
 666         else if( xevent.type == MotionNotify )
 667         {
 668             int i_width, i_height, i_x, i_y;
 669
 670             /* somewhat different use for vout_PlacePicture:
 671              * here the values are needed to give to mouse coordinates
 672              * in the original picture space */
 673             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 674                                p_vout->p_sys->p_win->i_height,
 675                                &i_x, &i_y, &i_width, &i_height );
 676
 677             p_vout->i_mouse_x = ( xevent.xmotion.x - i_x )
 678                 * p_vout->render.i_width / i_width;
 679             p_vout->i_mouse_y = ( xevent.xmotion.y - i_y )
 680                 * p_vout->render.i_height / i_height;
 681
 682             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 683             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 684             {
 685                 ToggleCursor( p_vout );
 686             }
 687         }
 688         /* Reparent move -- XXX: why are we getting this ? */
 689         else if( xevent.type == ReparentNotify )
 690         {
 691             ;
 692         }
 693         /* Other event */
 694         else
 695         {
 696             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 697         }
 698     }
 699
 700     /* Handle events for video output sub-window */
 701     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 702                               p_vout->p_sys->p_win->video_window,
 703                               ExposureMask, &xevent ) == True )
 704     {
 705         /* Window exposed (only handled if stream playback is paused) */
 706         if( xevent.type == Expose )
 707         {
 708             if( ((XExposeEvent *)&xevent)->count == 0 )
 709             {
 710                 /* (if this is the last a collection of expose events...) */
 711 #if 0
 712                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
 713                 {
 714                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
 715                                                    ->stream.control.i_status )
 716                     {
 717                         /* XVideoDisplay( p_vout )*/;
 718                     }
 719                 }
 720 #endif
 721             }
 722         }
 723     }
 724
 725     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 726      * are handled - according to the man pages, the format is always 32
 727      * in this case */
 728     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 729                              ClientMessage, &xevent ) )
 730     {
 731         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
 732                && (xevent.xclient.data.l[0]
 733                      == p_vout->p_sys->p_win->wm_delete_window ) )
 734         {
 735             p_vout->p_vlc->b_die = 1;
 736         }
 737     }
 738
 739     /*
 740      * Fullscreen Change
 741      */
 742     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 743     {
 744         ToggleFullScreen( p_vout );
 745         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 746     }
 747
 748     /*
 749      * Size change
 750      *
 751      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
 752      *  the size flag inside the fullscreen routine)
 753      */
 754     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 755     {
 756         int i_width, i_height, i_x, i_y;
 757
 758         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 759
 760         msg_Dbg( p_vout, "video display resized (%dx%d)",
 761                          p_vout->p_sys->p_win->i_width,
 762                          p_vout->p_sys->p_win->i_height );
 763
 764 #ifdef MODULE_NAME_IS_x11
 765         /* We need to signal the vout thread about the size change because it
 766          * is doing the rescaling */
 767         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 768 #endif
 769
 770         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 771                            p_vout->p_sys->p_win->i_height,
 772                            &i_x, &i_y, &i_width, &i_height );
 773
 774         XResizeWindow( p_vout->p_sys->p_display,
 775                        p_vout->p_sys->p_win->video_window, i_width, i_height );
 776
 777         XMoveWindow( p_vout->p_sys->p_display,
 778                      p_vout->p_sys->p_win->video_window, i_x, i_y );
 779     }
 780
 781     /* Autohide Cursour */
 782     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 783     {
 784         /* Hide the mouse automatically */
 785         if( p_vout->p_sys->b_mouse_pointer_visible )
 786         {
 787             ToggleCursor( p_vout );
 788         }
 789     }
 790
 791     return 0;
 792 }
 793
 794 /*****************************************************************************
 795  * EndVideo: terminate X11 video thread output method
 796  *****************************************************************************
 797  * Destroy the X11 XImages created by Init. It is called at the end of
 798  * the thread, but also each time the window is resized.
 799  *****************************************************************************/
 800 static void EndVideo( vout_thread_t *p_vout )
 801 {
 802     int i_index;
 803
 804     /* Free the direct buffers we allocated */
 805     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 806     {
 807         i_index--;
 808         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 809     }
 810 }
 811
 812 /* following functions are local */
 813
 814 /*****************************************************************************
 815  * CreateWindow: open and set-up X11 main window
 816  *****************************************************************************/
 817 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
 818 {
 819     XSizeHints              xsize_hints;
 820     XSetWindowAttributes    xwindow_attributes;
 821     XGCValues               xgcvalues;
 822     XEvent                  xevent;
 823
 824     vlc_bool_t              b_expose;
 825     vlc_bool_t              b_configure_notify;
 826     vlc_bool_t              b_map_notify;
 827
 828     long long int           i_drawable;
 829
 830     /* Prepare window manager hints and properties */
 831     xsize_hints.base_width          = p_win->i_width;
 832     xsize_hints.base_height         = p_win->i_height;
 833     xsize_hints.flags               = PSize;
 834     p_win->wm_protocols =
 835              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
 836     p_win->wm_delete_window =
 837              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
 838
 839     /* Prepare window attributes */
 840     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 841     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 842                                                      p_vout->p_sys->i_screen);
 843     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 844
 845     /* Check whether someone provided us with a window ID */
 846     i_drawable = p_vout->b_fullscreen ?
 847                     -1 : config_GetInt( p_vout, MODULE_STRING "-drawable");
 848
 849     if( i_drawable == -1 )
 850     {
 851         p_vout->p_sys->b_createwindow = 1;
 852
 853         /* Create the window and set hints - the window must receive
 854          * ConfigureNotify events, and until it is displayed, Expose and
 855          * MapNotify events. */
 856
 857         p_win->base_window =
 858             XCreateWindow( p_vout->p_sys->p_display,
 859                            DefaultRootWindow( p_vout->p_sys->p_display ),
 860                            0, 0,
 861                            p_win->i_width, p_win->i_height,
 862                            0,
 863                            0, InputOutput, 0,
 864                            CWBackingStore | CWBackPixel | CWEventMask,
 865                            &xwindow_attributes );
 866
 867         if( !p_vout->b_fullscreen )
 868         {
 869             /* Set window manager hints and properties: size hints, command,
 870              * window's name, and accepted protocols */
 871             XSetWMNormalHints( p_vout->p_sys->p_display,
 872                                p_win->base_window, &xsize_hints );
 873             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
 874                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 875
 876             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
 877 #ifdef MODULE_NAME_IS_x11
 878                         VOUT_TITLE " (X11 output)"
 879 #else
 880                         VOUT_TITLE " (XVideo output)"
 881 #endif
 882                       );
 883         }
 884     }
 885     else
 886     {
 887         p_vout->p_sys->b_createwindow = 0;
 888         p_win->base_window = i_drawable;
 889
 890         XChangeWindowAttributes( p_vout->p_sys->p_display,
 891                                  p_win->base_window,
 892                                  CWBackingStore | CWBackPixel | CWEventMask,
 893                                  &xwindow_attributes );
 894     }
 895
 896     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 897         || (p_win->wm_delete_window == None)
 898         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
 899                              &p_win->wm_delete_window, 1 ) )
 900     {
 901         /* WM_DELETE_WINDOW is not supported by window manager */
 902         msg_Warn( p_vout, "missing or bad window manager" );
 903     }
 904
 905     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 906      * event when using functions like XCopyArea */
 907     xgcvalues.graphics_exposures = False;
 908     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
 909                            p_win->base_window,
 910                            GCGraphicsExposures, &xgcvalues );
 911
 912     if( p_vout->p_sys->b_createwindow )
 913     {
 914         /* Send orders to server, and wait until window is displayed - three
 915          * events must be received: a MapNotify event, an Expose event allowing
 916          * drawing in the window, and a ConfigureNotify to get the window
 917          * dimensions. Once those events have been received, only
 918          * ConfigureNotify events need to be received. */
 919         b_expose = 0;
 920         b_configure_notify = 0;
 921         b_map_notify = 0;
 922         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
 923         do
 924         {
 925             XNextEvent( p_vout->p_sys->p_display, &xevent);
 926             if( (xevent.type == Expose)
 927                 && (xevent.xexpose.window == p_win->base_window) )
 928             {
 929                 b_expose = 1;
 930             }
 931             else if( (xevent.type == MapNotify)
 932                      && (xevent.xmap.window == p_win->base_window) )
 933             {
 934                 b_map_notify = 1;
 935             }
 936             else if( (xevent.type == ConfigureNotify)
 937                      && (xevent.xconfigure.window == p_win->base_window) )
 938             {
 939                 b_configure_notify = 1;
 940                 p_win->i_width = xevent.xconfigure.width;
 941                 p_win->i_height = xevent.xconfigure.height;
 942             }
 943         } while( !( b_expose && b_configure_notify && b_map_notify ) );
 944     }
 945     else
 946     {
 947         /* Get the window's geometry information */
 948         Window dummy1;
 949         unsigned int dummy2, dummy3;
 950         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
 951                       &dummy1, &dummy2, &dummy3,
 952                       &p_win->i_width,
 953                       &p_win->i_height,
 954                       &dummy2, &dummy3 );
 955     }
 956
 957     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
 958                   StructureNotifyMask | KeyPressMask |
 959                   ButtonPressMask | ButtonReleaseMask |
 960                   PointerMotionMask );
 961
 962 #ifdef MODULE_NAME_IS_x11
 963     if( p_vout->p_sys->b_createwindow &&
 964          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 965     {
 966         /* Allocate a new palette */
 967         p_vout->p_sys->colormap =
 968             XCreateColormap( p_vout->p_sys->p_display,
 969                              DefaultRootWindow( p_vout->p_sys->p_display ),
 970                              DefaultVisual( p_vout->p_sys->p_display,
 971                                             p_vout->p_sys->i_screen ),
 972                              AllocAll );
 973
 974         xwindow_attributes.colormap = p_vout->p_sys->colormap;
 975         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
 976                                  CWColormap, &xwindow_attributes );
 977     }
 978 #endif
 979
 980     /* Create video output sub-window. */
 981     p_win->video_window =  XCreateSimpleWindow(
 982                                       p_vout->p_sys->p_display,
 983                                       p_win->base_window, 0, 0,
 984                                       p_win->i_width, p_win->i_height,
 985                                       0,
 986                                       BlackPixel( p_vout->p_sys->p_display,
 987                                                   p_vout->p_sys->i_screen ),
 988                                       WhitePixel( p_vout->p_sys->p_display,
 989                                                   p_vout->p_sys->i_screen ) );
 990
 991     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
 992                           BlackPixel( p_vout->p_sys->p_display,
 993                                       p_vout->p_sys->i_screen ) );
 994
 995     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
 996     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
 997                   ExposureMask );
 998
 999     /* make sure the video window will be centered in the next ManageVideo() */
1000     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1001
1002     /* If the cursor was formerly blank than blank it again */
1003     if( !p_vout->p_sys->b_mouse_pointer_visible )
1004     {
1005         ToggleCursor( p_vout );
1006         ToggleCursor( p_vout );
1007     }
1008
1009     /* Do NOT use XFlush here ! */
1010     XSync( p_vout->p_sys->p_display, False );
1011
1012     /* At this stage, the window is open, displayed, and ready to
1013      * receive data */
1014     p_vout->p_sys->p_win = p_win;
1015
1016     return( 0 );
1017 }
1018
1019 /*****************************************************************************
1020  * DestroyWindow: destroy the window
1021  *****************************************************************************
1022  *
1023  *****************************************************************************/
1024 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1025 {
1026     /* Do NOT use XFlush here ! */
1027     XSync( p_vout->p_sys->p_display, False );
1028
1029     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1030     XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1031     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1032     XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1033 }
1034
1035 /*****************************************************************************
1036  * NewPicture: allocate a picture
1037  *****************************************************************************
1038  * Returns 0 on success, -1 otherwise
1039  *****************************************************************************/
1040 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1041 {
1042     /* We know the chroma, allocate a buffer which will be used
1043      * directly by the decoder */
1044     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1045
1046     if( p_pic->p_sys == NULL )
1047     {
1048         return -1;
1049     }
1050
1051 #ifdef HAVE_SYS_SHM_H
1052     if( p_vout->p_sys->b_shm )
1053     {
1054         /* Create image using XShm extension */
1055         p_pic->p_sys->p_image =
1056             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1057 #   ifdef MODULE_NAME_IS_xvideo
1058                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1059 #   else
1060                             p_vout->p_sys->p_visual,
1061                             p_vout->p_sys->i_screen_depth,
1062 #   endif
1063                             &p_pic->p_sys->shminfo,
1064                             p_vout->output.i_width, p_vout->output.i_height );
1065     }
1066     else
1067 #endif /* HAVE_SYS_SHM_H */
1068     {
1069         /* Create image without XShm extension */
1070         p_pic->p_sys->p_image =
1071             CreateImage( p_vout, p_vout->p_sys->p_display,
1072 #ifdef MODULE_NAME_IS_xvideo
1073                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1074 #else
1075                          p_vout->p_sys->p_visual,
1076                          p_vout->p_sys->i_screen_depth,
1077                          p_vout->p_sys->i_bytes_per_pixel,
1078 #endif
1079                          p_vout->output.i_width, p_vout->output.i_height );
1080     }
1081
1082     if( p_pic->p_sys->p_image == NULL )
1083     {
1084         free( p_pic->p_sys );
1085         return -1;
1086     }
1087
1088     switch( p_vout->output.i_chroma )
1089     {
1090 #ifdef MODULE_NAME_IS_xvideo
1091         case VLC_FOURCC('I','4','2','0'):
1092
1093             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1094                                + p_pic->p_sys->p_image->offsets[0];
1095             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1096             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1097             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1098             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1099
1100             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1101                                + p_pic->p_sys->p_image->offsets[1];
1102             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1103             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1104             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1105             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1106
1107             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1108                                + p_pic->p_sys->p_image->offsets[2];
1109             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1110             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1111             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1112             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1113
1114             p_pic->i_planes = 3;
1115             break;
1116
1117         case VLC_FOURCC('Y','V','1','2'):
1118
1119             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1120                                + p_pic->p_sys->p_image->offsets[0];
1121             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1122             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1123             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1124             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1125
1126             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1127                                + p_pic->p_sys->p_image->offsets[2];
1128             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1129             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1130             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1131             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1132
1133             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1134                                + p_pic->p_sys->p_image->offsets[1];
1135             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1136             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1137             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1138             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1139
1140             p_pic->i_planes = 3;
1141             break;
1142
1143         case VLC_FOURCC('Y','2','1','1'):
1144
1145             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1146                                   + p_pic->p_sys->p_image->offsets[0];
1147             p_pic->p->i_lines = p_vout->output.i_height;
1148             /* XXX: this just looks so plain wrong... check it out ! */
1149             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1150             p_pic->p->i_pixel_pitch = 4;
1151             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1152
1153             p_pic->i_planes = 1;
1154             break;
1155
1156         case VLC_FOURCC('Y','U','Y','2'):
1157         case VLC_FOURCC('U','Y','V','Y'):
1158
1159             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1160                                   + p_pic->p_sys->p_image->offsets[0];
1161             p_pic->p->i_lines = p_vout->output.i_height;
1162             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1163             p_pic->p->i_pixel_pitch = 4;
1164             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1165
1166             p_pic->i_planes = 1;
1167             break;
1168
1169         case VLC_FOURCC('R','V','1','5'):
1170
1171             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1172                                   + p_pic->p_sys->p_image->offsets[0];
1173             p_pic->p->i_lines = p_vout->output.i_height;
1174             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1175             p_pic->p->i_pixel_pitch = 2;
1176             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1177
1178             p_pic->i_planes = 1;
1179             break;
1180
1181         case VLC_FOURCC('R','V','1','6'):
1182
1183             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1184                                   + p_pic->p_sys->p_image->offsets[0];
1185             p_pic->p->i_lines = p_vout->output.i_height;
1186             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1187             p_pic->p->i_pixel_pitch = 2;
1188             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1189
1190             p_pic->i_planes = 1;
1191             break;
1192
1193 #else
1194         case VLC_FOURCC('R','G','B','2'):
1195
1196             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1197                                   + p_pic->p_sys->p_image->xoffset;
1198             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1199             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1200             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1201             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1202
1203             p_pic->i_planes = 1;
1204
1205             break;
1206
1207         case VLC_FOURCC('R','V','1','6'):
1208         case VLC_FOURCC('R','V','1','5'):
1209
1210             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1211                                   + p_pic->p_sys->p_image->xoffset;
1212             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1213             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1214             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1215             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1216
1217             p_pic->i_planes = 1;
1218
1219             break;
1220
1221         case VLC_FOURCC('R','V','3','2'):
1222         case VLC_FOURCC('R','V','2','4'):
1223
1224             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1225                                   + p_pic->p_sys->p_image->xoffset;
1226             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1227             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1228             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1229             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1230
1231             p_pic->i_planes = 1;
1232
1233             break;
1234 #endif
1235
1236         default:
1237             /* Unknown chroma, tell the guy to get lost */
1238             IMAGE_FREE( p_pic->p_sys->p_image );
1239             free( p_pic->p_sys );
1240             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1241                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1242             p_pic->i_planes = 0;
1243             return -1;
1244     }
1245
1246     return 0;
1247 }
1248
1249 /*****************************************************************************
1250  * FreePicture: destroy a picture allocated with NewPicture
1251  *****************************************************************************
1252  * Destroy XImage AND associated data. If using Shm, detach shared memory
1253  * segment from server and process, then free it. The XDestroyImage manpage
1254  * says that both the image structure _and_ the data pointed to by the
1255  * image structure are freed, so no need to free p_image->data.
1256  *****************************************************************************/
1257 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1258 {
1259     /* The order of operations is correct */
1260 #ifdef HAVE_SYS_SHM_H
1261     if( p_vout->p_sys->b_shm )
1262     {
1263         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1264         IMAGE_FREE( p_pic->p_sys->p_image );
1265
1266         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1267         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1268         {
1269             msg_Err( p_vout, "cannot detach shared memory (%s)",
1270                              strerror(errno) );
1271         }
1272     }
1273     else
1274 #endif
1275     {
1276         IMAGE_FREE( p_pic->p_sys->p_image );
1277     }
1278
1279     /* Do NOT use XFlush here ! */
1280     XSync( p_vout->p_sys->p_display, False );
1281
1282     free( p_pic->p_sys );
1283 }
1284
1285 /*****************************************************************************
1286  * ToggleFullScreen: Enable or disable full screen mode
1287  *****************************************************************************
1288  * This function will switch between fullscreen and window mode.
1289  *****************************************************************************/
1290 static void ToggleFullScreen ( vout_thread_t *p_vout )
1291 {
1292     Atom prop;
1293     mwmhints_t mwmhints;
1294     XSetWindowAttributes attributes;
1295
1296     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1297
1298     if( p_vout->b_fullscreen )
1299     {
1300         msg_Dbg( p_vout, "entering fullscreen mode" );
1301         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1302
1303         /* Only check the fullscreen method when we actually go fullscreen,
1304          * because to go back to window mode we need to know in which
1305          * fullscreen mode we were */
1306         p_vout->p_sys->b_altfullscreen =
1307             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1308
1309         /* fullscreen window size and position */
1310         p_vout->p_sys->p_win->i_width =
1311             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1312         p_vout->p_sys->p_win->i_height =
1313             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1314
1315         CreateWindow( p_vout, p_vout->p_sys->p_win );
1316
1317         /* To my knowledge there are two ways to create a borderless window.
1318          * There's the generic way which is to tell x to bypass the window
1319          * manager, but this creates problems with the focus of other
1320          * applications.
1321          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1322          * luckily seems to be supported by most window managers. */
1323         if( !p_vout->p_sys->b_altfullscreen )
1324         {
1325             mwmhints.flags = MWM_HINTS_DECORATIONS;
1326             mwmhints.decorations = !p_vout->b_fullscreen;
1327
1328             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1329                                 False );
1330             XChangeProperty( p_vout->p_sys->p_display,
1331                              p_vout->p_sys->p_win->base_window,
1332                              prop, prop, 32, PropModeReplace,
1333                              (unsigned char *)&mwmhints,
1334                              PROP_MWM_HINTS_ELEMENTS );
1335         }
1336         else
1337         {
1338             /* brute force way to remove decorations */
1339             attributes.override_redirect = p_vout->b_fullscreen;
1340             XChangeWindowAttributes( p_vout->p_sys->p_display,
1341                                      p_vout->p_sys->p_win->base_window,
1342                                      CWOverrideRedirect,
1343                                      &attributes);
1344         }
1345
1346         XReparentWindow( p_vout->p_sys->p_display,
1347                          p_vout->p_sys->p_win->base_window,
1348                          DefaultRootWindow( p_vout->p_sys->p_display ),
1349                          0, 0 );
1350         XMoveResizeWindow( p_vout->p_sys->p_display,
1351                            p_vout->p_sys->p_win->base_window,
1352                            0, 0,
1353                            p_vout->p_sys->p_win->i_width,
1354                            p_vout->p_sys->p_win->i_height );
1355     }
1356     else
1357     {
1358         msg_Dbg( p_vout, "leaving fullscreen mode" );
1359         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1360         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1361     }
1362
1363     XSync( p_vout->p_sys->p_display, True );
1364
1365     if( !p_vout->b_fullscreen || p_vout->p_sys->b_altfullscreen )
1366     {
1367         XSetInputFocus(p_vout->p_sys->p_display,
1368                        p_vout->p_sys->p_win->base_window,
1369                        RevertToParent,
1370                        CurrentTime);
1371     }
1372
1373     /* signal that the size needs to be updated */
1374     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1375 }
1376
1377 /*****************************************************************************
1378  * EnableXScreenSaver: enable screen saver
1379  *****************************************************************************
1380  * This function enables the screen saver on a display after it has been
1381  * disabled by XDisableScreenSaver.
1382  * FIXME: what happens if multiple vlc sessions are running at the same
1383  *        time ???
1384  *****************************************************************************/
1385 static void EnableXScreenSaver( vout_thread_t *p_vout )
1386 {
1387 #ifdef DPMSINFO_IN_DPMS_H
1388     int dummy;
1389 #endif
1390
1391     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1392                      p_vout->p_sys->i_ss_interval,
1393                      p_vout->p_sys->i_ss_blanking,
1394                      p_vout->p_sys->i_ss_exposure );
1395
1396     /* Restore DPMS settings */
1397 #ifdef DPMSINFO_IN_DPMS_H
1398     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1399     {
1400         if( p_vout->p_sys->b_ss_dpms )
1401         {
1402             DPMSEnable( p_vout->p_sys->p_display );
1403         }
1404     }
1405 #endif
1406 }
1407
1408 /*****************************************************************************
1409  * DisableXScreenSaver: disable screen saver
1410  *****************************************************************************
1411  * See XEnableXScreenSaver
1412  *****************************************************************************/
1413 static void DisableXScreenSaver( vout_thread_t *p_vout )
1414 {
1415 #ifdef DPMSINFO_IN_DPMS_H
1416     int dummy;
1417 #endif
1418
1419     /* Save screen saver informations */
1420     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1421                      &p_vout->p_sys->i_ss_interval,
1422                      &p_vout->p_sys->i_ss_blanking,
1423                      &p_vout->p_sys->i_ss_exposure );
1424
1425     /* Disable screen saver */
1426     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1427                      p_vout->p_sys->i_ss_interval,
1428                      p_vout->p_sys->i_ss_blanking,
1429                      p_vout->p_sys->i_ss_exposure );
1430
1431     /* Disable DPMS */
1432 #ifdef DPMSINFO_IN_DPMS_H
1433     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1434     {
1435         CARD16 unused;
1436         /* Save DPMS current state */
1437         DPMSInfo( p_vout->p_sys->p_display, &unused,
1438                   &p_vout->p_sys->b_ss_dpms );
1439         DPMSDisable( p_vout->p_sys->p_display );
1440    }
1441 #endif
1442 }
1443
1444 /*****************************************************************************
1445  * CreateCursor: create a blank mouse pointer
1446  *****************************************************************************/
1447 static void CreateCursor( vout_thread_t *p_vout )
1448 {
1449     XColor cursor_color;
1450
1451     p_vout->p_sys->cursor_pixmap =
1452         XCreatePixmap( p_vout->p_sys->p_display,
1453                        DefaultRootWindow( p_vout->p_sys->p_display ),
1454                        1, 1, 1 );
1455
1456     XParseColor( p_vout->p_sys->p_display,
1457                  XCreateColormap( p_vout->p_sys->p_display,
1458                                   DefaultRootWindow(
1459                                                     p_vout->p_sys->p_display ),
1460                                   DefaultVisual(
1461                                                 p_vout->p_sys->p_display,
1462                                                 p_vout->p_sys->i_screen ),
1463                                   AllocNone ),
1464                  "black", &cursor_color );
1465
1466     p_vout->p_sys->blank_cursor =
1467         XCreatePixmapCursor( p_vout->p_sys->p_display,
1468                              p_vout->p_sys->cursor_pixmap,
1469                              p_vout->p_sys->cursor_pixmap,
1470                              &cursor_color, &cursor_color, 1, 1 );
1471 }
1472
1473 /*****************************************************************************
1474  * DestroyCursor: destroy the blank mouse pointer
1475  *****************************************************************************/
1476 static void DestroyCursor( vout_thread_t *p_vout )
1477 {
1478     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1479 }
1480
1481 /*****************************************************************************
1482  * ToggleCursor: hide or show the mouse pointer
1483  *****************************************************************************
1484  * This function hides the X pointer if it is visible by setting the pointer
1485  * sprite to a blank one. To show it again, we disable the sprite.
1486  *****************************************************************************/
1487 static void ToggleCursor( vout_thread_t *p_vout )
1488 {
1489     if( p_vout->p_sys->b_mouse_pointer_visible )
1490     {
1491         XDefineCursor( p_vout->p_sys->p_display,
1492                        p_vout->p_sys->p_win->base_window,
1493                        p_vout->p_sys->blank_cursor );
1494         p_vout->p_sys->b_mouse_pointer_visible = 0;
1495     }
1496     else
1497     {
1498         XUndefineCursor( p_vout->p_sys->p_display,
1499                          p_vout->p_sys->p_win->base_window );
1500         p_vout->p_sys->b_mouse_pointer_visible = 1;
1501     }
1502 }
1503
1504 #ifdef MODULE_NAME_IS_xvideo
1505 /*****************************************************************************
1506  * XVideoGetPort: get YUV12 port
1507  *****************************************************************************/
1508 static int XVideoGetPort( vout_thread_t *p_vout,
1509                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1510 {
1511     XvAdaptorInfo *p_adaptor;
1512     unsigned int i;
1513     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1514     int i_selected_port;
1515
1516     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1517     {
1518         case Success:
1519             break;
1520
1521         case XvBadExtension:
1522             msg_Warn( p_vout, "XvBadExtension" );
1523             return( -1 );
1524
1525         case XvBadAlloc:
1526             msg_Warn( p_vout, "XvBadAlloc" );
1527             return( -1 );
1528
1529         default:
1530             msg_Warn( p_vout, "XvQueryExtension failed" );
1531             return( -1 );
1532     }
1533
1534     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1535                              DefaultRootWindow( p_vout->p_sys->p_display ),
1536                              &i_num_adaptors, &p_adaptor ) )
1537     {
1538         case Success:
1539             break;
1540
1541         case XvBadExtension:
1542             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1543             return( -1 );
1544
1545         case XvBadAlloc:
1546             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1547             return( -1 );
1548
1549         default:
1550             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1551             return( -1 );
1552     }
1553
1554     i_selected_port = -1;
1555     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1556
1557     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1558     {
1559         XvImageFormatValues *p_formats;
1560         int i_format, i_num_formats;
1561         int i_port;
1562
1563         /* If we requested an adaptor and it's not this one, we aren't
1564          * interested */
1565         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1566         {
1567             continue;
1568         }
1569
1570         /* If the adaptor doesn't have the required properties, skip it */
1571         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1572             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1573         {
1574             continue;
1575         }
1576
1577         /* Check that adaptor supports our requested format... */
1578         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1579                                         p_adaptor[i_adaptor].base_id,
1580                                         &i_num_formats );
1581
1582         for( i_format = 0;
1583              i_format < i_num_formats && ( i_selected_port == -1 );
1584              i_format++ )
1585         {
1586             /* Code removed, we can get this through xvinfo anyway */
1587 #if 0
1588             XvEncodingInfo  *p_enc;
1589             int             i_enc, i_num_encodings;
1590             XvAttribute     *p_attr;
1591             int             i_attr, i_num_attributes;
1592 #endif
1593
1594             /* If this is not the format we want, or at least a
1595              * similar one, forget it */
1596             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1597             {
1598                 continue;
1599             }
1600
1601             /* Look for the first available port supporting this format */
1602             for( i_port = p_adaptor[i_adaptor].base_id;
1603                  ( i_port < p_adaptor[i_adaptor].base_id
1604                              + p_adaptor[i_adaptor].num_ports )
1605                    && ( i_selected_port == -1 );
1606                  i_port++ )
1607             {
1608                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1609                      == Success )
1610                 {
1611                     i_selected_port = i_port;
1612                     *pi_newchroma = p_formats[ i_format ].id;
1613                 }
1614             }
1615
1616             /* If no free port was found, forget it */
1617             if( i_selected_port == -1 )
1618             {
1619                 continue;
1620             }
1621
1622             /* If we found a port, print information about it */
1623             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1624                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1625                      (char *)&p_formats[ i_format ].id,
1626                      ( p_formats[ i_format ].format == XvPacked ) ?
1627                          "packed" : "planar" );
1628
1629 #if 0
1630             msg_Dbg( p_vout, " encoding list:" );
1631
1632             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1633                                   &i_num_encodings, &p_enc )
1634                  != Success )
1635             {
1636                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1637                 continue;
1638             }
1639
1640             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1641             {
1642                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1643                                       " numerator=%d, denominator=%d",
1644                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1645                              p_enc[i_enc].width, p_enc[i_enc].height,
1646                              p_enc[i_enc].rate.numerator,
1647                              p_enc[i_enc].rate.denominator );
1648             }
1649
1650             if( p_enc != NULL )
1651             {
1652                 XvFreeEncodingInfo( p_enc );
1653             }
1654
1655             msg_Dbg( p_vout, " attribute list:" );
1656             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1657                                             i_selected_port,
1658                                             &i_num_attributes );
1659             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1660             {
1661                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1662                       p_attr[i_attr].name,
1663                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1664                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1665                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1666             }
1667
1668             if( p_attr != NULL )
1669             {
1670                 XFree( p_attr );
1671             }
1672 #endif
1673         }
1674
1675         if( p_formats != NULL )
1676         {
1677             XFree( p_formats );
1678         }
1679
1680     }
1681
1682     if( i_num_adaptors > 0 )
1683     {
1684         XvFreeAdaptorInfo( p_adaptor );
1685     }
1686
1687     if( i_selected_port == -1 )
1688     {
1689         if( i_requested_adaptor == -1 )
1690         {
1691             msg_Warn( p_vout, "no free XVideo port found for format "
1692                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1693         }
1694         else
1695         {
1696             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1697                        "XVideo port for format 0x%.8x (%4.4s)",
1698                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1699         }
1700     }
1701
1702     return( i_selected_port );
1703 }
1704
1705 /*****************************************************************************
1706  * XVideoReleasePort: release YUV12 port
1707  *****************************************************************************/
1708 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1709 {
1710     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1711 }
1712 #endif
1713
1714 /*****************************************************************************
1715  * InitDisplay: open and initialize X11 device
1716  *****************************************************************************
1717  * Create a window according to video output given size, and set other
1718  * properties according to the display properties.
1719  *****************************************************************************/
1720 static int InitDisplay( vout_thread_t *p_vout )
1721 {
1722 #ifdef MODULE_NAME_IS_x11
1723     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1724     XVisualInfo *               p_xvisual;           /* visuals informations */
1725     XVisualInfo                 xvisual_template;         /* visual template */
1726     int                         i_count;                       /* array size */
1727 #endif
1728
1729 #ifdef HAVE_SYS_SHM_H
1730     p_vout->p_sys->b_shm = 0;
1731
1732     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1733     {
1734 #   ifdef SYS_DARWIN
1735         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1736 #   else
1737         p_vout->p_sys->b_shm =
1738                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1739 #   endif
1740
1741         if( !p_vout->p_sys->b_shm )
1742         {
1743             msg_Warn( p_vout, "XShm video extension is unavailable" );
1744         }
1745     }
1746     else
1747     {
1748         msg_Dbg( p_vout, "disabling XShm video extension" );
1749     }
1750
1751 #else
1752     msg_Warn( p_vout, "XShm video extension is unavailable" );
1753
1754 #endif
1755
1756 #ifdef MODULE_NAME_IS_xvideo
1757     /* XXX The brightness and contrast values should be read from environment
1758      * XXX variables... */
1759 #if 0
1760     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1761     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1762 #endif
1763 #endif
1764
1765 #ifdef MODULE_NAME_IS_x11
1766     /* Initialize structure */
1767     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1768
1769     /* Get screen depth */
1770     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1771                                                    p_vout->p_sys->i_screen );
1772     switch( p_vout->p_sys->i_screen_depth )
1773     {
1774     case 8:
1775         /*
1776          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1777          */
1778         xvisual_template.screen =   p_vout->p_sys->i_screen;
1779         xvisual_template.class =    DirectColor;
1780         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1781                                     VisualScreenMask | VisualClassMask,
1782                                     &xvisual_template, &i_count );
1783         if( p_xvisual == NULL )
1784         {
1785             msg_Err( p_vout, "no PseudoColor visual available" );
1786             return( 1 );
1787         }
1788         p_vout->p_sys->i_bytes_per_pixel = 1;
1789         p_vout->output.pf_setpalette = SetPalette;
1790         break;
1791     case 15:
1792     case 16:
1793     case 24:
1794     default:
1795         /*
1796          * Screen depth is higher than 8bpp. TrueColor visual is used.
1797          */
1798         xvisual_template.screen =   p_vout->p_sys->i_screen;
1799         xvisual_template.class =    TrueColor;
1800         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1801                                     VisualScreenMask | VisualClassMask,
1802                                     &xvisual_template, &i_count );
1803         if( p_xvisual == NULL )
1804         {
1805             msg_Err( p_vout, "no TrueColor visual available" );
1806             return( 1 );
1807         }
1808
1809         p_vout->output.i_rmask = p_xvisual->red_mask;
1810         p_vout->output.i_gmask = p_xvisual->green_mask;
1811         p_vout->output.i_bmask = p_xvisual->blue_mask;
1812
1813         /* There is no difference yet between 3 and 4 Bpp. The only way
1814          * to find the actual number of bytes per pixel is to list supported
1815          * pixmap formats. */
1816         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1817         p_vout->p_sys->i_bytes_per_pixel = 0;
1818
1819         for( ; i_count-- ; p_formats++ )
1820         {
1821             /* Under XFree4.0, the list contains pixmap formats available
1822              * through all video depths ; so we have to check against current
1823              * depth. */
1824             if( p_formats->depth == p_vout->p_sys->i_screen_depth )
1825             {
1826                 if( p_formats->bits_per_pixel / 8
1827                         > p_vout->p_sys->i_bytes_per_pixel )
1828                 {
1829                     p_vout->p_sys->i_bytes_per_pixel = p_formats->bits_per_pixel / 8;
1830                 }
1831             }
1832         }
1833         break;
1834     }
1835     p_vout->p_sys->p_visual = p_xvisual->visual;
1836     XFree( p_xvisual );
1837 #endif
1838
1839     return( 0 );
1840 }
1841
1842 #ifdef HAVE_SYS_SHM_H
1843 /*****************************************************************************
1844  * CreateShmImage: create an XImage or XvImage using shared memory extension
1845  *****************************************************************************
1846  * Prepare an XImage or XvImage for display function.
1847  * The order of the operations respects the recommandations of the mit-shm
1848  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1849  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1850  *****************************************************************************/
1851 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1852                                     Display* p_display, EXTRA_ARGS_SHM,
1853                                     int i_width, int i_height )
1854 {
1855     IMAGE_TYPE *p_image;
1856
1857     /* Create XImage / XvImage */
1858 #ifdef MODULE_NAME_IS_xvideo
1859     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1860                                 i_width, i_height, p_shm );
1861 #else
1862     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1863                                p_shm, i_width, i_height );
1864 #endif
1865     if( p_image == NULL )
1866     {
1867         msg_Err( p_vout, "image creation failed" );
1868         return( NULL );
1869     }
1870
1871     /* Allocate shared memory segment - 0776 set the access permission
1872      * rights (like umask), they are not yet supported by all X servers */
1873     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1874     if( p_shm->shmid < 0 )
1875     {
1876         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1877                          strerror( errno ) );
1878         IMAGE_FREE( p_image );
1879         return( NULL );
1880     }
1881
1882     /* Attach shared memory segment to process (read/write) */
1883     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1884     if(! p_shm->shmaddr )
1885     {
1886         msg_Err( p_vout, "cannot attach shared memory (%s)",
1887                          strerror(errno));
1888         IMAGE_FREE( p_image );
1889         shmctl( p_shm->shmid, IPC_RMID, 0 );
1890         return( NULL );
1891     }
1892
1893     /* Read-only data. We won't be using XShmGetImage */
1894     p_shm->readOnly = True;
1895
1896     /* Attach shared memory segment to X server */
1897     if( XShmAttach( p_display, p_shm ) == False )
1898     {
1899         msg_Err( p_vout, "cannot attach shared memory to X server" );
1900         IMAGE_FREE( p_image );
1901         shmctl( p_shm->shmid, IPC_RMID, 0 );
1902         shmdt( p_shm->shmaddr );
1903         return( NULL );
1904     }
1905
1906     /* Send image to X server. This instruction is required, since having
1907      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1908      * and remember NOT to use XFlush ! */
1909     XSync( p_display, False );
1910
1911 #if 0
1912     /* Mark the shm segment to be removed when there are no more
1913      * attachements, so it is automatic on process exit or after shmdt */
1914     shmctl( p_shm->shmid, IPC_RMID, 0 );
1915 #endif
1916
1917     return( p_image );
1918 }
1919 #endif
1920
1921 /*****************************************************************************
1922  * CreateImage: create an XImage or XvImage
1923  *****************************************************************************
1924  * Create a simple image used as a buffer.
1925  *****************************************************************************/
1926 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
1927                                  Display *p_display, EXTRA_ARGS,
1928                                  int i_width, int i_height )
1929 {
1930     byte_t *    p_data;                           /* image data storage zone */
1931     IMAGE_TYPE *p_image;
1932 #ifdef MODULE_NAME_IS_x11
1933     int         i_quantum;                     /* XImage quantum (see below) */
1934     int         i_bytes_per_line;
1935 #endif
1936
1937     /* Allocate memory for image */
1938 #ifdef MODULE_NAME_IS_xvideo
1939     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1940 #else
1941     i_bytes_per_line = i_width * i_bytes_per_pixel;
1942     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1943 #endif
1944     if( !p_data )
1945     {
1946         msg_Err( p_vout, "out of memory" );
1947         return( NULL );
1948     }
1949
1950 #ifdef MODULE_NAME_IS_x11
1951     /* Optimize the quantum of a scanline regarding its size - the quantum is
1952        a diviser of the number of bits between the start of two scanlines. */
1953     if( i_bytes_per_line & 0xf )
1954     {
1955         i_quantum = 0x8;
1956     }
1957     else if( i_bytes_per_line & 0x10 )
1958     {
1959         i_quantum = 0x10;
1960     }
1961     else
1962     {
1963         i_quantum = 0x20;
1964     }
1965 #endif
1966
1967     /* Create XImage. p_data will be automatically freed */
1968 #ifdef MODULE_NAME_IS_xvideo
1969     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
1970                              p_data, i_width, i_height );
1971 #else
1972     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1973                             p_data, i_width, i_height, i_quantum, 0 );
1974 #endif
1975     if( p_image == NULL )
1976     {
1977         msg_Err( p_vout, "XCreateImage() failed" );
1978         free( p_data );
1979         return( NULL );
1980     }
1981
1982     return p_image;
1983 }
1984
1985 #ifdef MODULE_NAME_IS_x11
1986 /*****************************************************************************
1987  * SetPalette: sets an 8 bpp palette
1988  *****************************************************************************
1989  * This function sets the palette given as an argument. It does not return
1990  * anything, but could later send information on which colors it was unable
1991  * to set.
1992  *****************************************************************************/
1993 static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
1994 {
1995     int i;
1996     XColor p_colors[255];
1997
1998     /* allocate palette */
1999     for( i = 0; i < 255; i++ )
2000     {
2001         /* kludge: colors are indexed reversely because color 255 seems
2002          * to be reserved for black even if we try to set it to white */
2003         p_colors[ i ].pixel = 255 - i;
2004         p_colors[ i ].pad   = 0;
2005         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2006         p_colors[ i ].red   = red[ 255 - i ];
2007         p_colors[ i ].blue  = blue[ 255 - i ];
2008         p_colors[ i ].green = green[ 255 - i ];
2009     }
2010
2011     XStoreColors( p_vout->p_sys->p_display,
2012                   p_vout->p_sys->colormap, p_colors, 255 );
2013 }
2014 #endif