git.sesse.net Git - vlc/blob - 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 1.5 2002/10/17 16:03:18 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/Xmd.h>
  55 #include <X11/Xutil.h>
  56 #include <X11/keysym.h>
  57 #ifdef HAVE_SYS_SHM_H
  58 #   include <X11/extensions/XShm.h>
  59 #endif
  60 #ifdef DPMSINFO_IN_DPMS_H
  61 #   include <X11/extensions/dpms.h>
  62 #endif
  63
  64 #ifdef MODULE_NAME_IS_xvideo
  65 #   include <X11/extensions/Xv.h>
  66 #   include <X11/extensions/Xvlib.h>
  67 #endif
  68
  69 #include "netutils.h"                                 /* network_ChannelJoin */
  70
  71 #include "xcommon.h"
  72
  73 /*****************************************************************************
  74  * Local prototypes
  75  *****************************************************************************/
  76 int  E_(Activate)   ( vlc_object_t * );
  77 void E_(Deactivate) ( vlc_object_t * );
  78
  79 static int  InitVideo      ( vout_thread_t * );
  80 static void EndVideo       ( vout_thread_t * );
  81 static void DisplayVideo   ( vout_thread_t *, picture_t * );
  82 static int  ManageVideo    ( vout_thread_t * );
  83
  84 static int  InitDisplay    ( vout_thread_t * );
  85
  86 static int  CreateWindow   ( vout_thread_t *, x11_window_t * );
  87 static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
  88
  89 static int  NewPicture     ( vout_thread_t *, picture_t * );
  90 static void FreePicture    ( vout_thread_t *, picture_t * );
  91
  92 static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
  93                                     Display *, EXTRA_ARGS, int, int );
  94 #ifdef HAVE_SYS_SHM_H
  95 static IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
  96                                     Display *, EXTRA_ARGS_SHM, int, int );
  97 #endif
  98
  99 static void ToggleFullScreen      ( vout_thread_t * );
 100
 101 static void EnableXScreenSaver    ( vout_thread_t * );
 102 static void DisableXScreenSaver   ( vout_thread_t * );
 103
 104 static void CreateCursor   ( vout_thread_t * );
 105 static void DestroyCursor  ( vout_thread_t * );
 106 static void ToggleCursor   ( vout_thread_t * );
 107
 108 #ifdef MODULE_NAME_IS_xvideo
 109 static int  XVideoGetPort    ( vout_thread_t *, vlc_fourcc_t, vlc_fourcc_t * );
 110 static void XVideoReleasePort( vout_thread_t *, int );
 111 #endif
 112
 113 #ifdef MODULE_NAME_IS_x11
 114 static void SetPalette     ( vout_thread_t *, u16 *, u16 *, u16 * );
 115 #endif
 116
 117 /*****************************************************************************
 118  * Activate: allocate X11 video thread output method
 119  *****************************************************************************
 120  * This function allocate and initialize a X11 vout method. It uses some of the
 121  * vout properties to choose the window size, and change them according to the
 122  * actual properties of the display.
 123  *****************************************************************************/
 124 int E_(Activate) ( vlc_object_t *p_this )
 125 {
 126     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 127     char *       psz_display;
 128 #ifdef MODULE_NAME_IS_xvideo
 129     char *       psz_chroma;
 130     vlc_fourcc_t i_chroma = 0;
 131     vlc_bool_t   b_chroma = 0;
 132 #endif
 133
 134     p_vout->pf_init = InitVideo;
 135     p_vout->pf_end = EndVideo;
 136     p_vout->pf_manage = ManageVideo;
 137     p_vout->pf_render = NULL;
 138     p_vout->pf_display = DisplayVideo;
 139
 140     /* Allocate structure */
 141     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 142     if( p_vout->p_sys == NULL )
 143     {
 144         msg_Err( p_vout, "out of memory" );
 145         return VLC_ENOMEM;
 146     }
 147
 148     /* Open display, unsing the "display" config variable or the DISPLAY
 149      * environment variable */
 150     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
 151
 152     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 153
 154     if( p_vout->p_sys->p_display == NULL )                          /* error */
 155     {
 156         msg_Err( p_vout, "cannot open display %s",
 157                          XDisplayName( psz_display ) );
 158         free( p_vout->p_sys );
 159         if( psz_display ) free( psz_display );
 160         return VLC_EGENERIC;
 161     }
 162     if( psz_display ) free( psz_display );
 163
 164     /* Get a screen ID matching the XOpenDisplay return value */
 165     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 166
 167 #ifdef MODULE_NAME_IS_xvideo
 168     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
 169     if( psz_chroma )
 170     {
 171         if( strlen( psz_chroma ) >= 4 )
 172         {
 173             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
 174             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
 175             i_chroma |= (unsigned char)psz_chroma[2] << 16;
 176             i_chroma |= (unsigned char)psz_chroma[3] << 24;
 177
 178             b_chroma = 1;
 179         }
 180
 181         free( psz_chroma );
 182     }
 183
 184     if( b_chroma )
 185     {
 186         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
 187                  i_chroma, (char*)&i_chroma );
 188     }
 189     else
 190     {
 191         i_chroma = p_vout->render.i_chroma;
 192     }
 193
 194     /* Check that we have access to an XVideo port providing this chroma */
 195     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
 196                                              &p_vout->output.i_chroma );
 197     if( p_vout->p_sys->i_xvport < 0 )
 198     {
 199         /* If a specific chroma format was requested, then we don't try to
 200          * be cleverer than the user. He knew pretty well what he wanted. */
 201         if( b_chroma )
 202         {
 203             XCloseDisplay( p_vout->p_sys->p_display );
 204             free( p_vout->p_sys );
 205             return VLC_EGENERIC;
 206         }
 207
 208         /* It failed, but it's not completely lost ! We try to open an
 209          * XVideo port for an YUY2 picture. We'll need to do an YUV
 210          * conversion, but at least it has got scaling. */
 211         p_vout->p_sys->i_xvport =
 212                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
 213                                                &p_vout->output.i_chroma );
 214         if( p_vout->p_sys->i_xvport < 0 )
 215         {
 216             /* It failed, but it's not completely lost ! We try to open an
 217              * XVideo port for a simple 16bpp RGB picture. We'll need to do
 218              * an YUV conversion, but at least it has got scaling. */
 219             p_vout->p_sys->i_xvport =
 220                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
 221                                                    &p_vout->output.i_chroma );
 222             if( p_vout->p_sys->i_xvport < 0 )
 223             {
 224                 XCloseDisplay( p_vout->p_sys->p_display );
 225                 free( p_vout->p_sys );
 226                 return VLC_EGENERIC;
 227             }
 228         }
 229     }
 230 #endif
 231
 232     /* Create blank cursor (for mouse cursor autohiding) */
 233     p_vout->p_sys->i_time_mouse_last_moved = mdate();
 234     p_vout->p_sys->b_mouse_pointer_visible = 1;
 235     CreateCursor( p_vout );
 236
 237     /* Set main window's size */
 238     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
 239     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
 240
 241     /* Spawn base window - this window will include the video output window,
 242      * but also command buttons, subtitles and other indicators */
 243     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
 244     {
 245         msg_Err( p_vout, "cannot create X11 window" );
 246         DestroyCursor( p_vout );
 247         XCloseDisplay( p_vout->p_sys->p_display );
 248         free( p_vout->p_sys );
 249         return VLC_EGENERIC;
 250     }
 251
 252     /* Open and initialize device. */
 253     if( InitDisplay( p_vout ) )
 254     {
 255         msg_Err( p_vout, "cannot initialize X11 display" );
 256         DestroyCursor( p_vout );
 257         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 258         XCloseDisplay( p_vout->p_sys->p_display );
 259         free( p_vout->p_sys );
 260         return VLC_EGENERIC;
 261     }
 262
 263     /* Disable screen saver */
 264     DisableXScreenSaver( p_vout );
 265
 266     /* Misc init */
 267     p_vout->p_sys->b_altfullscreen = 0;
 268     p_vout->p_sys->i_time_button_last_pressed = 0;
 269
 270     return VLC_SUCCESS;
 271 }
 272
 273 /*****************************************************************************
 274  * Deactivate: destroy X11 video thread output method
 275  *****************************************************************************
 276  * Terminate an output method created by Open
 277  *****************************************************************************/
 278 void E_(Deactivate) ( vlc_object_t *p_this )
 279 {
 280     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 281
 282     /* If the fullscreen window is still open, close it */
 283     if( p_vout->b_fullscreen )
 284     {
 285         ToggleFullScreen( p_vout );
 286     }
 287
 288     /* Restore cursor if it was blanked */
 289     if( !p_vout->p_sys->b_mouse_pointer_visible )
 290     {
 291         ToggleCursor( p_vout );
 292     }
 293
 294 #ifdef MODULE_NAME_IS_x11
 295     /* Destroy colormap */
 296     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 297     {
 298         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 299     }
 300 #else
 301     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
 302 #endif
 303
 304     DestroyCursor( p_vout );
 305     EnableXScreenSaver( p_vout );
 306     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 307
 308     XCloseDisplay( p_vout->p_sys->p_display );
 309
 310     /* Destroy structure */
 311     free( p_vout->p_sys );
 312 }
 313
 314 /*****************************************************************************
 315  * InitVideo: initialize X11 video thread output method
 316  *****************************************************************************
 317  * This function create the XImages needed by the output thread. It is called
 318  * at the beginning of the thread, but also each time the window is resized.
 319  *****************************************************************************/
 320 static int InitVideo( vout_thread_t *p_vout )
 321 {
 322     int i_index;
 323     picture_t *p_pic;
 324
 325     I_OUTPUTPICTURES = 0;
 326
 327 #ifdef MODULE_NAME_IS_xvideo
 328     /* Initialize the output structure; we already found an XVideo port,
 329      * and the corresponding chroma we will be using. Since we can
 330      * arbitrary scale, stick to the coordinates and aspect. */
 331     p_vout->output.i_width  = p_vout->render.i_width;
 332     p_vout->output.i_height = p_vout->render.i_height;
 333     p_vout->output.i_aspect = p_vout->render.i_aspect;
 334
 335     switch( p_vout->output.i_chroma )
 336     {
 337         case VLC_FOURCC('R','V','1','5'):
 338             p_vout->output.i_rmask = 0x001f;
 339             p_vout->output.i_gmask = 0x07e0;
 340             p_vout->output.i_bmask = 0xf800;
 341             break;
 342         case VLC_FOURCC('R','V','1','6'):
 343             p_vout->output.i_rmask = 0x001f;
 344             p_vout->output.i_gmask = 0x03e0;
 345             p_vout->output.i_bmask = 0x7c00;
 346             break;
 347     }
 348
 349 #else
 350     /* Initialize the output structure: RGB with square pixels, whatever
 351      * the input format is, since it's the only format we know */
 352     switch( p_vout->p_sys->i_screen_depth )
 353     {
 354         case 8: /* FIXME: set the palette */
 355             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
 356         case 15:
 357             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
 358         case 16:
 359             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
 360         case 24:
 361             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 362         case 32:
 363             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 364         default:
 365             msg_Err( p_vout, "unknown screen depth %i",
 366                      p_vout->p_sys->i_screen_depth );
 367             return VLC_SUCCESS;
 368     }
 369
 370     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 371                        p_vout->p_sys->p_win->i_height,
 372                        &i_index, &i_index,
 373                        &p_vout->output.i_width, &p_vout->output.i_height );
 374
 375     /* Assume we have square pixels */
 376     p_vout->output.i_aspect = p_vout->output.i_width
 377                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
 378 #endif
 379
 380     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 381     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 382     {
 383         p_pic = NULL;
 384
 385         /* Find an empty picture slot */
 386         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 387         {
 388           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 389             {
 390                 p_pic = p_vout->p_picture + i_index;
 391                 break;
 392             }
 393         }
 394
 395         /* Allocate the picture */
 396         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 397         {
 398             break;
 399         }
 400
 401         p_pic->i_status = DESTROYED_PICTURE;
 402         p_pic->i_type   = DIRECT_PICTURE;
 403
 404         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 405
 406         I_OUTPUTPICTURES++;
 407     }
 408
 409     return VLC_SUCCESS;
 410 }
 411
 412  /*****************************************************************************
 413  * DisplayVideo: displays previously rendered output
 414  *****************************************************************************
 415  * This function sends the currently rendered image to X11 server.
 416  * (The Xv extension takes care of "double-buffering".)
 417  *****************************************************************************/
 418 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 419 {
 420     int i_width, i_height, i_x, i_y;
 421
 422     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 423                        p_vout->p_sys->p_win->i_height,
 424                        &i_x, &i_y, &i_width, &i_height );
 425
 426 #ifdef HAVE_SYS_SHM_H
 427     if( p_vout->p_sys->b_shm )
 428     {
 429         /* Display rendered image using shared memory extension */
 430 #   ifdef MODULE_NAME_IS_xvideo
 431         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 432                        p_vout->p_sys->p_win->video_window,
 433                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 434                        0 /*src_x*/, 0 /*src_y*/,
 435                        p_vout->output.i_width, p_vout->output.i_height,
 436                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 437                        False /* Don't put True here or you'll waste your CPU */ );
 438 #   else
 439         XShmPutImage( p_vout->p_sys->p_display,
 440                       p_vout->p_sys->p_win->video_window,
 441                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 442                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 443                       p_vout->output.i_width, p_vout->output.i_height,
 444                       False /* Don't put True here ! */ );
 445 #   endif
 446     }
 447     else
 448 #endif /* HAVE_SYS_SHM_H */
 449     {
 450         /* Use standard XPutImage -- this is gonna be slow ! */
 451 #ifdef MODULE_NAME_IS_xvideo
 452         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 453                     p_vout->p_sys->p_win->video_window,
 454                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 455                     0 /*src_x*/, 0 /*src_y*/,
 456                     p_vout->output.i_width, p_vout->output.i_height,
 457                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 458 #else
 459         XPutImage( p_vout->p_sys->p_display,
 460                    p_vout->p_sys->p_win->video_window,
 461                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 462                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 463                    p_vout->output.i_width, p_vout->output.i_height );
 464 #endif
 465     }
 466
 467     /* Make sure the command is sent now - do NOT use XFlush !*/
 468     XSync( p_vout->p_sys->p_display, False );
 469 }
 470
 471 /*****************************************************************************
 472  * ManageVideo: handle X11 events
 473  *****************************************************************************
 474  * This function should be called regularly by video output thread. It manages
 475  * X11 events and allows window resizing. It returns a non null value on
 476  * error.
 477  *****************************************************************************/
 478 static int ManageVideo( vout_thread_t *p_vout )
 479 {
 480     XEvent      xevent;                                         /* X11 event */
 481     char        i_key;                                    /* ISO Latin-1 key */
 482     KeySym      x_key_symbol;
 483
 484     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 485      * output window's size changed, MapNotify and UnmapNotify to know if the
 486      * window is mapped (and if the display is useful), and ClientMessages
 487      * to intercept window destruction requests */
 488
 489     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 490                               p_vout->p_sys->p_win->base_window,
 491                               StructureNotifyMask | KeyPressMask |
 492                               ButtonPressMask | ButtonReleaseMask |
 493                               PointerMotionMask | Button1MotionMask , &xevent )
 494            == True )
 495     {
 496         /* ConfigureNotify event: prepare  */
 497         if( xevent.type == ConfigureNotify )
 498         {
 499             if( (xevent.xconfigure.width != p_vout->p_sys->p_win->i_width)
 500               || (xevent.xconfigure.height != p_vout->p_sys->p_win->i_height) )
 501             {
 502                 /* Update dimensions */
 503                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
 504                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
 505                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
 506             }
 507         }
 508         /* Keyboard event */
 509         else if( xevent.type == KeyPress )
 510         {
 511             /* We may have keys like F1 trough F12, ESC ... */
 512             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 513                                              xevent.xkey.keycode, 0 );
 514             switch( x_key_symbol )
 515             {
 516             case XK_Escape:
 517                 if( p_vout->b_fullscreen )
 518                 {
 519                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 520                 }
 521                 else
 522                 {
 523                     p_vout->p_vlc->b_die = 1;
 524                 }
 525                 break;
 526             case XK_Menu:
 527                 {
 528                     intf_thread_t *p_intf;
 529                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 530                                                       FIND_ANYWHERE );
 531                     if( p_intf )
 532                     {
 533                         p_intf->b_menu_change = 1;
 534                         vlc_object_release( p_intf );
 535                     }
 536                 }
 537                 break;
 538             case XK_Left:
 539                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 540                 break;
 541             case XK_Right:
 542                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 543                 break;
 544             case XK_Up:
 545                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 546                 break;
 547             case XK_Down:
 548                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 549                 break;
 550             case XK_Home:
 551                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
 552                 break;
 553             case XK_End:
 554                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
 555                 break;
 556             case XK_Page_Up:
 557                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 558                 break;
 559             case XK_Page_Down:
 560                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 561                 break;
 562             case XK_space:
 563                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
 564                 break;
 565
 566             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
 567             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
 568             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
 569             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
 570             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
 571             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
 572             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
 573             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
 574             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
 575             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
 576             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
 577             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
 578
 579             default:
 580                 /* "Normal Keys"
 581                  * The reason why I use this instead of XK_0 is that
 582                  * with XLookupString, we don't have to care about
 583                  * keymaps. */
 584
 585                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 586                 {
 587                     /* FIXME: handle stuff here */
 588                     switch( i_key )
 589                     {
 590                     case 'q':
 591                     case 'Q':
 592                         p_vout->p_vlc->b_die = 1;
 593                         break;
 594                     case 'f':
 595                     case 'F':
 596                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 597                         break;
 598
 599                     default:
 600                         break;
 601                     }
 602                 }
 603                 break;
 604             }
 605         }
 606         /* Mouse click */
 607         else if( xevent.type == ButtonPress )
 608         {
 609             int i_width, i_height, i_x, i_y;
 610             vlc_value_t val;
 611
 612             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 613                                p_vout->p_sys->p_win->i_height,
 614                                &i_x, &i_y, &i_width, &i_height );
 615
 616             val.i_int = ( xevent.xmotion.x - i_x )
 617                          * p_vout->render.i_width / i_width;
 618             var_Set( p_vout, "mouse-x", val );
 619             val.i_int = ( xevent.xmotion.y - i_y )
 620                          * p_vout->render.i_height / i_height;
 621             var_Set( p_vout, "mouse-y", val );
 622
 623             val.b_bool = VLC_TRUE;
 624             var_Set( p_vout, "mouse-clicked", val );
 625
 626             switch( ((XButtonEvent *)&xevent)->button )
 627             {
 628                 case Button1:
 629                     /* In this part we will eventually manage
 630                      * clicks for DVD navigation for instance. */
 631
 632                     /* detect double-clicks */
 633                     if( ( ((XButtonEvent *)&xevent)->time -
 634                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 635                     {
 636                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 637                     }
 638
 639                     p_vout->p_sys->i_time_button_last_pressed =
 640                         ((XButtonEvent *)&xevent)->time;
 641                     break;
 642
 643                 case Button4:
 644                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 645                     break;
 646
 647                 case Button5:
 648                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 649                     break;
 650             }
 651         }
 652         /* Mouse release */
 653         else if( xevent.type == ButtonRelease )
 654         {
 655             switch( ((XButtonEvent *)&xevent)->button )
 656             {
 657                 case Button3:
 658                     {
 659                         intf_thread_t *p_intf;
 660                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 661                                                           FIND_ANYWHERE );
 662                         if( p_intf )
 663                         {
 664                             p_intf->b_menu_change = 1;
 665                             vlc_object_release( p_intf );
 666                         }
 667                     }
 668                     break;
 669             }
 670         }
 671         /* Mouse move */
 672         else if( xevent.type == MotionNotify )
 673         {
 674             int i_width, i_height, i_x, i_y;
 675             vlc_value_t val;
 676
 677             /* somewhat different use for vout_PlacePicture:
 678              * here the values are needed to give to mouse coordinates
 679              * in the original picture space */
 680             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 681                                p_vout->p_sys->p_win->i_height,
 682                                &i_x, &i_y, &i_width, &i_height );
 683
 684             val.i_int = ( xevent.xmotion.x - i_x )
 685                          * p_vout->render.i_width / i_width;
 686             var_Set( p_vout, "mouse-x", val );
 687             val.i_int = ( xevent.xmotion.y - i_y )
 688                          * p_vout->render.i_height / i_height;
 689             var_Set( p_vout, "mouse-y", val );
 690
 691             val.b_bool = VLC_TRUE;
 692             var_Set( p_vout, "mouse-moved", val );
 693
 694             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 695             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 696             {
 697                 ToggleCursor( p_vout );
 698             }
 699         }
 700         /* Reparent move -- XXX: why are we getting this ? */
 701         else if( xevent.type == ReparentNotify )
 702         {
 703             ;
 704         }
 705         /* Other event */
 706         else
 707         {
 708             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 709         }
 710     }
 711
 712     /* Handle events for video output sub-window */
 713     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 714                               p_vout->p_sys->p_win->video_window,
 715                               ExposureMask, &xevent ) == True )
 716     {
 717         /* Window exposed (only handled if stream playback is paused) */
 718         if( xevent.type == Expose )
 719         {
 720             if( ((XExposeEvent *)&xevent)->count == 0 )
 721             {
 722                 /* (if this is the last a collection of expose events...) */
 723 #if 0
 724                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
 725                 {
 726                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
 727                                                    ->stream.control.i_status )
 728                     {
 729                         /* XVideoDisplay( p_vout )*/;
 730                     }
 731                 }
 732 #endif
 733             }
 734         }
 735     }
 736
 737     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 738      * are handled - according to the man pages, the format is always 32
 739      * in this case */
 740     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 741                              ClientMessage, &xevent ) )
 742     {
 743         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
 744                && (xevent.xclient.data.l[0]
 745                      == p_vout->p_sys->p_win->wm_delete_window ) )
 746         {
 747             p_vout->p_vlc->b_die = 1;
 748         }
 749     }
 750
 751     /*
 752      * Fullscreen Change
 753      */
 754     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 755     {
 756         ToggleFullScreen( p_vout );
 757         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 758     }
 759
 760     /*
 761      * Size change
 762      *
 763      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
 764      *  the size flag inside the fullscreen routine)
 765      */
 766     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 767     {
 768         int i_width, i_height, i_x, i_y;
 769
 770         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 771
 772         msg_Dbg( p_vout, "video display resized (%dx%d)",
 773                          p_vout->p_sys->p_win->i_width,
 774                          p_vout->p_sys->p_win->i_height );
 775
 776 #ifdef MODULE_NAME_IS_x11
 777         /* We need to signal the vout thread about the size change because it
 778          * is doing the rescaling */
 779         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 780 #endif
 781
 782         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 783                            p_vout->p_sys->p_win->i_height,
 784                            &i_x, &i_y, &i_width, &i_height );
 785
 786         XResizeWindow( p_vout->p_sys->p_display,
 787                        p_vout->p_sys->p_win->video_window, i_width, i_height );
 788
 789         XMoveWindow( p_vout->p_sys->p_display,
 790                      p_vout->p_sys->p_win->video_window, i_x, i_y );
 791     }
 792
 793     /* Autohide Cursour */
 794     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 795     {
 796         /* Hide the mouse automatically */
 797         if( p_vout->p_sys->b_mouse_pointer_visible )
 798         {
 799             ToggleCursor( p_vout );
 800         }
 801     }
 802
 803     return 0;
 804 }
 805
 806 /*****************************************************************************
 807  * EndVideo: terminate X11 video thread output method
 808  *****************************************************************************
 809  * Destroy the X11 XImages created by Init. It is called at the end of
 810  * the thread, but also each time the window is resized.
 811  *****************************************************************************/
 812 static void EndVideo( vout_thread_t *p_vout )
 813 {
 814     int i_index;
 815
 816     /* Free the direct buffers we allocated */
 817     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 818     {
 819         i_index--;
 820         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 821     }
 822 }
 823
 824 /* following functions are local */
 825
 826 /*****************************************************************************
 827  * CreateWindow: open and set-up X11 main window
 828  *****************************************************************************/
 829 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
 830 {
 831     XSizeHints              xsize_hints;
 832     XSetWindowAttributes    xwindow_attributes;
 833     XGCValues               xgcvalues;
 834     XEvent                  xevent;
 835
 836     vlc_bool_t              b_expose;
 837     vlc_bool_t              b_configure_notify;
 838     vlc_bool_t              b_map_notify;
 839
 840     long long int           i_drawable;
 841
 842     /* Prepare window manager hints and properties */
 843     xsize_hints.base_width          = p_win->i_width;
 844     xsize_hints.base_height         = p_win->i_height;
 845     xsize_hints.flags               = PSize;
 846     p_win->wm_protocols =
 847              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
 848     p_win->wm_delete_window =
 849              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
 850
 851     /* Prepare window attributes */
 852     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 853     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 854                                                      p_vout->p_sys->i_screen);
 855     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 856
 857     /* Check whether someone provided us with a window ID */
 858     i_drawable = p_vout->b_fullscreen ?
 859                     -1 : config_GetInt( p_vout, MODULE_STRING "-drawable");
 860
 861     if( i_drawable == -1 )
 862     {
 863         p_win->b_owned = VLC_TRUE;
 864
 865         /* Create the window and set hints - the window must receive
 866          * ConfigureNotify events, and until it is displayed, Expose and
 867          * MapNotify events. */
 868
 869         p_win->base_window =
 870             XCreateWindow( p_vout->p_sys->p_display,
 871                            DefaultRootWindow( p_vout->p_sys->p_display ),
 872                            0, 0,
 873                            p_win->i_width, p_win->i_height,
 874                            0,
 875                            0, InputOutput, 0,
 876                            CWBackingStore | CWBackPixel | CWEventMask,
 877                            &xwindow_attributes );
 878
 879         if( !p_vout->b_fullscreen )
 880         {
 881             /* Set window manager hints and properties: size hints, command,
 882              * window's name, and accepted protocols */
 883             XSetWMNormalHints( p_vout->p_sys->p_display,
 884                                p_win->base_window, &xsize_hints );
 885             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
 886                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 887
 888             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
 889 #ifdef MODULE_NAME_IS_x11
 890                         VOUT_TITLE " (X11 output)"
 891 #else
 892                         VOUT_TITLE " (XVideo output)"
 893 #endif
 894                       );
 895         }
 896     }
 897     else
 898     {
 899         p_win->b_owned = VLC_FALSE;
 900         p_win->base_window = i_drawable;
 901
 902         XChangeWindowAttributes( p_vout->p_sys->p_display,
 903                                  p_win->base_window,
 904                                  CWBackingStore | CWBackPixel | CWEventMask,
 905                                  &xwindow_attributes );
 906     }
 907
 908     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 909         || (p_win->wm_delete_window == None)
 910         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
 911                              &p_win->wm_delete_window, 1 ) )
 912     {
 913         /* WM_DELETE_WINDOW is not supported by window manager */
 914         msg_Warn( p_vout, "missing or bad window manager" );
 915     }
 916
 917     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 918      * event when using functions like XCopyArea */
 919     xgcvalues.graphics_exposures = False;
 920     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
 921                            p_win->base_window,
 922                            GCGraphicsExposures, &xgcvalues );
 923
 924     if( p_win->b_owned )
 925     {
 926         /* Send orders to server, and wait until window is displayed - three
 927          * events must be received: a MapNotify event, an Expose event allowing
 928          * drawing in the window, and a ConfigureNotify to get the window
 929          * dimensions. Once those events have been received, only
 930          * ConfigureNotify events need to be received. */
 931         b_expose = 0;
 932         b_configure_notify = 0;
 933         b_map_notify = 0;
 934         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
 935         do
 936         {
 937             XNextEvent( p_vout->p_sys->p_display, &xevent);
 938             if( (xevent.type == Expose)
 939                 && (xevent.xexpose.window == p_win->base_window) )
 940             {
 941                 b_expose = 1;
 942             }
 943             else if( (xevent.type == MapNotify)
 944                      && (xevent.xmap.window == p_win->base_window) )
 945             {
 946                 b_map_notify = 1;
 947             }
 948             else if( (xevent.type == ConfigureNotify)
 949                      && (xevent.xconfigure.window == p_win->base_window) )
 950             {
 951                 b_configure_notify = 1;
 952                 p_win->i_width = xevent.xconfigure.width;
 953                 p_win->i_height = xevent.xconfigure.height;
 954             }
 955         } while( !( b_expose && b_configure_notify && b_map_notify ) );
 956     }
 957     else
 958     {
 959         /* Get the window's geometry information */
 960         Window dummy1;
 961         unsigned int dummy2, dummy3;
 962         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
 963                       &dummy1, &dummy2, &dummy3,
 964                       &p_win->i_width,
 965                       &p_win->i_height,
 966                       &dummy2, &dummy3 );
 967     }
 968
 969     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
 970                   StructureNotifyMask | KeyPressMask |
 971                   ButtonPressMask | ButtonReleaseMask |
 972                   PointerMotionMask );
 973
 974 #ifdef MODULE_NAME_IS_x11
 975     if( p_win->b_owned &&
 976          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 977     {
 978         /* Allocate a new palette */
 979         p_vout->p_sys->colormap =
 980             XCreateColormap( p_vout->p_sys->p_display,
 981                              DefaultRootWindow( p_vout->p_sys->p_display ),
 982                              DefaultVisual( p_vout->p_sys->p_display,
 983                                             p_vout->p_sys->i_screen ),
 984                              AllocAll );
 985
 986         xwindow_attributes.colormap = p_vout->p_sys->colormap;
 987         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
 988                                  CWColormap, &xwindow_attributes );
 989     }
 990 #endif
 991
 992     /* Create video output sub-window. */
 993     p_win->video_window =  XCreateSimpleWindow(
 994                                       p_vout->p_sys->p_display,
 995                                       p_win->base_window, 0, 0,
 996                                       p_win->i_width, p_win->i_height,
 997                                       0,
 998                                       BlackPixel( p_vout->p_sys->p_display,
 999                                                   p_vout->p_sys->i_screen ),
1000                                       WhitePixel( p_vout->p_sys->p_display,
1001                                                   p_vout->p_sys->i_screen ) );
1002
1003     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
1004                           BlackPixel( p_vout->p_sys->p_display,
1005                                       p_vout->p_sys->i_screen ) );
1006
1007     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
1008     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
1009                   ExposureMask );
1010
1011     /* make sure the video window will be centered in the next ManageVideo() */
1012     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1013
1014     /* If the cursor was formerly blank than blank it again */
1015     if( !p_vout->p_sys->b_mouse_pointer_visible )
1016     {
1017         ToggleCursor( p_vout );
1018         ToggleCursor( p_vout );
1019     }
1020
1021     /* Do NOT use XFlush here ! */
1022     XSync( p_vout->p_sys->p_display, False );
1023
1024     /* At this stage, the window is open, displayed, and ready to
1025      * receive data */
1026     p_vout->p_sys->p_win = p_win;
1027
1028     return VLC_SUCCESS;
1029 }
1030
1031 /*****************************************************************************
1032  * DestroyWindow: destroy the window
1033  *****************************************************************************
1034  *
1035  *****************************************************************************/
1036 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1037 {
1038     /* Do NOT use XFlush here ! */
1039     XSync( p_vout->p_sys->p_display, False );
1040
1041     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1042     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1043
1044     if( p_win->b_owned )
1045     {
1046         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1047         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1048     }
1049 }
1050
1051 /*****************************************************************************
1052  * NewPicture: allocate a picture
1053  *****************************************************************************
1054  * Returns 0 on success, -1 otherwise
1055  *****************************************************************************/
1056 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1057 {
1058     /* We know the chroma, allocate a buffer which will be used
1059      * directly by the decoder */
1060     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1061
1062     if( p_pic->p_sys == NULL )
1063     {
1064         return -1;
1065     }
1066
1067 #ifdef HAVE_SYS_SHM_H
1068     if( p_vout->p_sys->b_shm )
1069     {
1070         /* Create image using XShm extension */
1071         p_pic->p_sys->p_image =
1072             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1073 #   ifdef MODULE_NAME_IS_xvideo
1074                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1075 #   else
1076                             p_vout->p_sys->p_visual,
1077                             p_vout->p_sys->i_screen_depth,
1078 #   endif
1079                             &p_pic->p_sys->shminfo,
1080                             p_vout->output.i_width, p_vout->output.i_height );
1081     }
1082     else
1083 #endif /* HAVE_SYS_SHM_H */
1084     {
1085         /* Create image without XShm extension */
1086         p_pic->p_sys->p_image =
1087             CreateImage( p_vout, p_vout->p_sys->p_display,
1088 #ifdef MODULE_NAME_IS_xvideo
1089                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1090 #else
1091                          p_vout->p_sys->p_visual,
1092                          p_vout->p_sys->i_screen_depth,
1093                          p_vout->p_sys->i_bytes_per_pixel,
1094 #endif
1095                          p_vout->output.i_width, p_vout->output.i_height );
1096     }
1097
1098     if( p_pic->p_sys->p_image == NULL )
1099     {
1100         free( p_pic->p_sys );
1101         return -1;
1102     }
1103
1104     switch( p_vout->output.i_chroma )
1105     {
1106 #ifdef MODULE_NAME_IS_xvideo
1107         case VLC_FOURCC('I','4','2','0'):
1108
1109             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1110                                + p_pic->p_sys->p_image->offsets[0];
1111             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1112             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1113             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1114             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1115
1116             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1117                                + p_pic->p_sys->p_image->offsets[1];
1118             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1119             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1120             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1121             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1122
1123             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1124                                + p_pic->p_sys->p_image->offsets[2];
1125             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1126             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1127             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1128             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1129
1130             p_pic->i_planes = 3;
1131             break;
1132
1133         case VLC_FOURCC('Y','V','1','2'):
1134
1135             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1136                                + p_pic->p_sys->p_image->offsets[0];
1137             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1138             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1139             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1140             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1141
1142             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1143                                + p_pic->p_sys->p_image->offsets[2];
1144             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1145             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1146             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1147             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
1148
1149             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1150                                + p_pic->p_sys->p_image->offsets[1];
1151             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1152             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1153             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1154             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
1155
1156             p_pic->i_planes = 3;
1157             break;
1158
1159         case VLC_FOURCC('Y','2','1','1'):
1160
1161             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1162                                   + p_pic->p_sys->p_image->offsets[0];
1163             p_pic->p->i_lines = p_vout->output.i_height;
1164             /* XXX: this just looks so plain wrong... check it out ! */
1165             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1166             p_pic->p->i_pixel_pitch = 4;
1167             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1168
1169             p_pic->i_planes = 1;
1170             break;
1171
1172         case VLC_FOURCC('Y','U','Y','2'):
1173         case VLC_FOURCC('U','Y','V','Y'):
1174
1175             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1176                                   + p_pic->p_sys->p_image->offsets[0];
1177             p_pic->p->i_lines = p_vout->output.i_height;
1178             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1179             p_pic->p->i_pixel_pitch = 4;
1180             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1181
1182             p_pic->i_planes = 1;
1183             break;
1184
1185         case VLC_FOURCC('R','V','1','5'):
1186
1187             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1188                                   + p_pic->p_sys->p_image->offsets[0];
1189             p_pic->p->i_lines = p_vout->output.i_height;
1190             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1191             p_pic->p->i_pixel_pitch = 2;
1192             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1193
1194             p_pic->i_planes = 1;
1195             break;
1196
1197         case VLC_FOURCC('R','V','1','6'):
1198
1199             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1200                                   + p_pic->p_sys->p_image->offsets[0];
1201             p_pic->p->i_lines = p_vout->output.i_height;
1202             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1203             p_pic->p->i_pixel_pitch = 2;
1204             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
1205
1206             p_pic->i_planes = 1;
1207             break;
1208
1209 #else
1210         case VLC_FOURCC('R','G','B','2'):
1211
1212             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1213                                   + p_pic->p_sys->p_image->xoffset;
1214             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1215             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1216             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1217             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1218
1219             p_pic->i_planes = 1;
1220
1221             break;
1222
1223         case VLC_FOURCC('R','V','1','6'):
1224         case VLC_FOURCC('R','V','1','5'):
1225
1226             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1227                                   + p_pic->p_sys->p_image->xoffset;
1228             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1229             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1230             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1231             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1232
1233             p_pic->i_planes = 1;
1234
1235             break;
1236
1237         case VLC_FOURCC('R','V','3','2'):
1238         case VLC_FOURCC('R','V','2','4'):
1239
1240             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1241                                   + p_pic->p_sys->p_image->xoffset;
1242             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1243             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1244             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1245             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1246
1247             p_pic->i_planes = 1;
1248
1249             break;
1250 #endif
1251
1252         default:
1253             /* Unknown chroma, tell the guy to get lost */
1254             IMAGE_FREE( p_pic->p_sys->p_image );
1255             free( p_pic->p_sys );
1256             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1257                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1258             p_pic->i_planes = 0;
1259             return -1;
1260     }
1261
1262     return 0;
1263 }
1264
1265 /*****************************************************************************
1266  * FreePicture: destroy a picture allocated with NewPicture
1267  *****************************************************************************
1268  * Destroy XImage AND associated data. If using Shm, detach shared memory
1269  * segment from server and process, then free it. The XDestroyImage manpage
1270  * says that both the image structure _and_ the data pointed to by the
1271  * image structure are freed, so no need to free p_image->data.
1272  *****************************************************************************/
1273 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1274 {
1275     /* The order of operations is correct */
1276 #ifdef HAVE_SYS_SHM_H
1277     if( p_vout->p_sys->b_shm )
1278     {
1279         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1280         IMAGE_FREE( p_pic->p_sys->p_image );
1281
1282         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1283         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1284         {
1285             msg_Err( p_vout, "cannot detach shared memory (%s)",
1286                              strerror(errno) );
1287         }
1288     }
1289     else
1290 #endif
1291     {
1292         IMAGE_FREE( p_pic->p_sys->p_image );
1293     }
1294
1295     /* Do NOT use XFlush here ! */
1296     XSync( p_vout->p_sys->p_display, False );
1297
1298     free( p_pic->p_sys );
1299 }
1300
1301 /*****************************************************************************
1302  * ToggleFullScreen: Enable or disable full screen mode
1303  *****************************************************************************
1304  * This function will switch between fullscreen and window mode.
1305  *****************************************************************************/
1306 static void ToggleFullScreen ( vout_thread_t *p_vout )
1307 {
1308     Atom prop;
1309     XEvent xevent;
1310     mwmhints_t mwmhints;
1311     XSetWindowAttributes attributes;
1312
1313     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1314
1315     if( p_vout->b_fullscreen )
1316     {
1317         msg_Dbg( p_vout, "entering fullscreen mode" );
1318
1319         p_vout->p_sys->b_altfullscreen =
1320             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1321
1322         if( p_vout->p_sys->p_win->b_owned )
1323         {
1324             XUnmapWindow( p_vout->p_sys->p_display,
1325                           p_vout->p_sys->p_win->base_window);
1326         }
1327
1328         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1329
1330         /* fullscreen window size and position */
1331         p_vout->p_sys->p_win->i_width =
1332             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1333         p_vout->p_sys->p_win->i_height =
1334             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1335
1336         CreateWindow( p_vout, p_vout->p_sys->p_win );
1337
1338         /* To my knowledge there are two ways to create a borderless window.
1339          * There's the generic way which is to tell x to bypass the window
1340          * manager, but this creates problems with the focus of other
1341          * applications.
1342          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1343          * luckily seems to be supported by most window managers. */
1344         if( !p_vout->p_sys->b_altfullscreen )
1345         {
1346             mwmhints.flags = MWM_HINTS_DECORATIONS;
1347             mwmhints.decorations = False;
1348
1349             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1350                                 False );
1351             XChangeProperty( p_vout->p_sys->p_display,
1352                              p_vout->p_sys->p_win->base_window,
1353                              prop, prop, 32, PropModeReplace,
1354                              (unsigned char *)&mwmhints,
1355                              PROP_MWM_HINTS_ELEMENTS );
1356         }
1357         else
1358         {
1359             /* brute force way to remove decorations */
1360             attributes.override_redirect = True;
1361             XChangeWindowAttributes( p_vout->p_sys->p_display,
1362                                      p_vout->p_sys->p_win->base_window,
1363                                      CWOverrideRedirect,
1364                                      &attributes);
1365         }
1366
1367         /* Make sure the change is effective */
1368         XReparentWindow( p_vout->p_sys->p_display,
1369                          p_vout->p_sys->p_win->base_window,
1370                          DefaultRootWindow( p_vout->p_sys->p_display ),
1371                          0, 0 );
1372
1373         /* fullscreen window size and position */
1374         p_vout->p_sys->p_win->i_width =
1375             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1376         p_vout->p_sys->p_win->i_height =
1377             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1378
1379         XMoveResizeWindow( p_vout->p_sys->p_display,
1380                            p_vout->p_sys->p_win->base_window,
1381                            0, 0,
1382                            p_vout->p_sys->p_win->i_width,
1383                            p_vout->p_sys->p_win->i_height );
1384     }
1385     else
1386     {
1387         msg_Dbg( p_vout, "leaving fullscreen mode" );
1388         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1389         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1390
1391         if( p_vout->p_sys->p_win->b_owned )
1392         {
1393             XMapWindow( p_vout->p_sys->p_display,
1394                         p_vout->p_sys->p_win->base_window);
1395         }
1396     }
1397
1398     /* Unfortunately, using XSync() here is not enough to ensure the
1399      * window has already been mapped because the XMapWindow() request
1400      * has not necessarily been sent directly to our window (remember,
1401      * the call is first redirected to the window manager) */
1402     if( p_vout->p_sys->p_win->b_owned )
1403     {
1404         do
1405         {
1406             XWindowEvent( p_vout->p_sys->p_display,
1407                           p_vout->p_sys->p_win->base_window,
1408                           StructureNotifyMask, &xevent );
1409         } while( xevent.type != MapNotify );
1410     }
1411     else
1412     {
1413         XSync( p_vout->p_sys->p_display, False );
1414     }
1415
1416     /* Becareful, this can generate a BadMatch error if the window is not
1417      * already mapped by the server (see above) */
1418     XSetInputFocus(p_vout->p_sys->p_display,
1419                    p_vout->p_sys->p_win->base_window,
1420                    RevertToParent,
1421                    CurrentTime);
1422
1423     /* signal that the size needs to be updated */
1424     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1425 }
1426
1427 /*****************************************************************************
1428  * EnableXScreenSaver: enable screen saver
1429  *****************************************************************************
1430  * This function enables the screen saver on a display after it has been
1431  * disabled by XDisableScreenSaver.
1432  * FIXME: what happens if multiple vlc sessions are running at the same
1433  *        time ???
1434  *****************************************************************************/
1435 static void EnableXScreenSaver( vout_thread_t *p_vout )
1436 {
1437 #ifdef DPMSINFO_IN_DPMS_H
1438     int dummy;
1439 #endif
1440
1441     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1442                      p_vout->p_sys->i_ss_interval,
1443                      p_vout->p_sys->i_ss_blanking,
1444                      p_vout->p_sys->i_ss_exposure );
1445
1446     /* Restore DPMS settings */
1447 #ifdef DPMSINFO_IN_DPMS_H
1448     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1449     {
1450         if( p_vout->p_sys->b_ss_dpms )
1451         {
1452             DPMSEnable( p_vout->p_sys->p_display );
1453         }
1454     }
1455 #endif
1456 }
1457
1458 /*****************************************************************************
1459  * DisableXScreenSaver: disable screen saver
1460  *****************************************************************************
1461  * See XEnableXScreenSaver
1462  *****************************************************************************/
1463 static void DisableXScreenSaver( vout_thread_t *p_vout )
1464 {
1465 #ifdef DPMSINFO_IN_DPMS_H
1466     int dummy;
1467 #endif
1468
1469     /* Save screen saver informations */
1470     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1471                      &p_vout->p_sys->i_ss_interval,
1472                      &p_vout->p_sys->i_ss_blanking,
1473                      &p_vout->p_sys->i_ss_exposure );
1474
1475     /* Disable screen saver */
1476     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1477                      p_vout->p_sys->i_ss_interval,
1478                      p_vout->p_sys->i_ss_blanking,
1479                      p_vout->p_sys->i_ss_exposure );
1480
1481     /* Disable DPMS */
1482 #ifdef DPMSINFO_IN_DPMS_H
1483     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1484     {
1485         CARD16 unused;
1486         /* Save DPMS current state */
1487         DPMSInfo( p_vout->p_sys->p_display, &unused,
1488                   &p_vout->p_sys->b_ss_dpms );
1489         DPMSDisable( p_vout->p_sys->p_display );
1490    }
1491 #endif
1492 }
1493
1494 /*****************************************************************************
1495  * CreateCursor: create a blank mouse pointer
1496  *****************************************************************************/
1497 static void CreateCursor( vout_thread_t *p_vout )
1498 {
1499     XColor cursor_color;
1500
1501     p_vout->p_sys->cursor_pixmap =
1502         XCreatePixmap( p_vout->p_sys->p_display,
1503                        DefaultRootWindow( p_vout->p_sys->p_display ),
1504                        1, 1, 1 );
1505
1506     XParseColor( p_vout->p_sys->p_display,
1507                  XCreateColormap( p_vout->p_sys->p_display,
1508                                   DefaultRootWindow(
1509                                                     p_vout->p_sys->p_display ),
1510                                   DefaultVisual(
1511                                                 p_vout->p_sys->p_display,
1512                                                 p_vout->p_sys->i_screen ),
1513                                   AllocNone ),
1514                  "black", &cursor_color );
1515
1516     p_vout->p_sys->blank_cursor =
1517         XCreatePixmapCursor( p_vout->p_sys->p_display,
1518                              p_vout->p_sys->cursor_pixmap,
1519                              p_vout->p_sys->cursor_pixmap,
1520                              &cursor_color, &cursor_color, 1, 1 );
1521 }
1522
1523 /*****************************************************************************
1524  * DestroyCursor: destroy the blank mouse pointer
1525  *****************************************************************************/
1526 static void DestroyCursor( vout_thread_t *p_vout )
1527 {
1528     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1529 }
1530
1531 /*****************************************************************************
1532  * ToggleCursor: hide or show the mouse pointer
1533  *****************************************************************************
1534  * This function hides the X pointer if it is visible by setting the pointer
1535  * sprite to a blank one. To show it again, we disable the sprite.
1536  *****************************************************************************/
1537 static void ToggleCursor( vout_thread_t *p_vout )
1538 {
1539     if( p_vout->p_sys->b_mouse_pointer_visible )
1540     {
1541         XDefineCursor( p_vout->p_sys->p_display,
1542                        p_vout->p_sys->p_win->base_window,
1543                        p_vout->p_sys->blank_cursor );
1544         p_vout->p_sys->b_mouse_pointer_visible = 0;
1545     }
1546     else
1547     {
1548         XUndefineCursor( p_vout->p_sys->p_display,
1549                          p_vout->p_sys->p_win->base_window );
1550         p_vout->p_sys->b_mouse_pointer_visible = 1;
1551     }
1552 }
1553
1554 #ifdef MODULE_NAME_IS_xvideo
1555 /*****************************************************************************
1556  * XVideoGetPort: get YUV12 port
1557  *****************************************************************************/
1558 static int XVideoGetPort( vout_thread_t *p_vout,
1559                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1560 {
1561     XvAdaptorInfo *p_adaptor;
1562     unsigned int i;
1563     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1564     int i_selected_port;
1565
1566     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1567     {
1568         case Success:
1569             break;
1570
1571         case XvBadExtension:
1572             msg_Warn( p_vout, "XvBadExtension" );
1573             return -1;
1574
1575         case XvBadAlloc:
1576             msg_Warn( p_vout, "XvBadAlloc" );
1577             return -1;
1578
1579         default:
1580             msg_Warn( p_vout, "XvQueryExtension failed" );
1581             return -1;
1582     }
1583
1584     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1585                              DefaultRootWindow( p_vout->p_sys->p_display ),
1586                              &i_num_adaptors, &p_adaptor ) )
1587     {
1588         case Success:
1589             break;
1590
1591         case XvBadExtension:
1592             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1593             return -1;
1594
1595         case XvBadAlloc:
1596             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1597             return -1;
1598
1599         default:
1600             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1601             return -1;
1602     }
1603
1604     i_selected_port = -1;
1605     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1606
1607     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1608     {
1609         XvImageFormatValues *p_formats;
1610         int i_format, i_num_formats;
1611         int i_port;
1612
1613         /* If we requested an adaptor and it's not this one, we aren't
1614          * interested */
1615         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1616         {
1617             continue;
1618         }
1619
1620         /* If the adaptor doesn't have the required properties, skip it */
1621         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1622             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1623         {
1624             continue;
1625         }
1626
1627         /* Check that adaptor supports our requested format... */
1628         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1629                                         p_adaptor[i_adaptor].base_id,
1630                                         &i_num_formats );
1631
1632         for( i_format = 0;
1633              i_format < i_num_formats && ( i_selected_port == -1 );
1634              i_format++ )
1635         {
1636             /* Code removed, we can get this through xvinfo anyway */
1637 #if 0
1638             XvEncodingInfo  *p_enc;
1639             int             i_enc, i_num_encodings;
1640             XvAttribute     *p_attr;
1641             int             i_attr, i_num_attributes;
1642 #endif
1643
1644             /* If this is not the format we want, or at least a
1645              * similar one, forget it */
1646             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1647             {
1648                 continue;
1649             }
1650
1651             /* Look for the first available port supporting this format */
1652             for( i_port = p_adaptor[i_adaptor].base_id;
1653                  ( i_port < p_adaptor[i_adaptor].base_id
1654                              + p_adaptor[i_adaptor].num_ports )
1655                    && ( i_selected_port == -1 );
1656                  i_port++ )
1657             {
1658                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1659                      == Success )
1660                 {
1661                     i_selected_port = i_port;
1662                     *pi_newchroma = p_formats[ i_format ].id;
1663                 }
1664             }
1665
1666             /* If no free port was found, forget it */
1667             if( i_selected_port == -1 )
1668             {
1669                 continue;
1670             }
1671
1672             /* If we found a port, print information about it */
1673             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1674                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1675                      (char *)&p_formats[ i_format ].id,
1676                      ( p_formats[ i_format ].format == XvPacked ) ?
1677                          "packed" : "planar" );
1678
1679 #if 0
1680             msg_Dbg( p_vout, " encoding list:" );
1681
1682             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1683                                   &i_num_encodings, &p_enc )
1684                  != Success )
1685             {
1686                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1687                 continue;
1688             }
1689
1690             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1691             {
1692                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1693                                       " numerator=%d, denominator=%d",
1694                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1695                              p_enc[i_enc].width, p_enc[i_enc].height,
1696                              p_enc[i_enc].rate.numerator,
1697                              p_enc[i_enc].rate.denominator );
1698             }
1699
1700             if( p_enc != NULL )
1701             {
1702                 XvFreeEncodingInfo( p_enc );
1703             }
1704
1705             msg_Dbg( p_vout, " attribute list:" );
1706             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1707                                             i_selected_port,
1708                                             &i_num_attributes );
1709             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1710             {
1711                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1712                       p_attr[i_attr].name,
1713                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1714                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1715                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1716             }
1717
1718             if( p_attr != NULL )
1719             {
1720                 XFree( p_attr );
1721             }
1722 #endif
1723         }
1724
1725         if( p_formats != NULL )
1726         {
1727             XFree( p_formats );
1728         }
1729
1730     }
1731
1732     if( i_num_adaptors > 0 )
1733     {
1734         XvFreeAdaptorInfo( p_adaptor );
1735     }
1736
1737     if( i_selected_port == -1 )
1738     {
1739         if( i_requested_adaptor == -1 )
1740         {
1741             msg_Warn( p_vout, "no free XVideo port found for format "
1742                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1743         }
1744         else
1745         {
1746             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1747                        "XVideo port for format 0x%.8x (%4.4s)",
1748                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1749         }
1750     }
1751
1752     return i_selected_port;
1753 }
1754
1755 /*****************************************************************************
1756  * XVideoReleasePort: release YUV12 port
1757  *****************************************************************************/
1758 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1759 {
1760     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1761 }
1762 #endif
1763
1764 /*****************************************************************************
1765  * InitDisplay: open and initialize X11 device
1766  *****************************************************************************
1767  * Create a window according to video output given size, and set other
1768  * properties according to the display properties.
1769  *****************************************************************************/
1770 static int InitDisplay( vout_thread_t *p_vout )
1771 {
1772 #ifdef MODULE_NAME_IS_x11
1773     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1774     XVisualInfo *               p_xvisual;           /* visuals informations */
1775     XVisualInfo                 xvisual_template;         /* visual template */
1776     int                         i_count;                       /* array size */
1777 #endif
1778
1779 #ifdef HAVE_SYS_SHM_H
1780     p_vout->p_sys->b_shm = 0;
1781
1782     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1783     {
1784 #   ifdef SYS_DARWIN
1785         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1786 #   else
1787         p_vout->p_sys->b_shm =
1788                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1789 #   endif
1790
1791         if( !p_vout->p_sys->b_shm )
1792         {
1793             msg_Warn( p_vout, "XShm video extension is unavailable" );
1794         }
1795     }
1796     else
1797     {
1798         msg_Dbg( p_vout, "disabling XShm video extension" );
1799     }
1800
1801 #else
1802     msg_Warn( p_vout, "XShm video extension is unavailable" );
1803
1804 #endif
1805
1806 #ifdef MODULE_NAME_IS_xvideo
1807     /* XXX The brightness and contrast values should be read from environment
1808      * XXX variables... */
1809 #if 0
1810     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1811     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1812 #endif
1813 #endif
1814
1815 #ifdef MODULE_NAME_IS_x11
1816     /* Initialize structure */
1817     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1818
1819     /* Get screen depth */
1820     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1821                                                    p_vout->p_sys->i_screen );
1822     switch( p_vout->p_sys->i_screen_depth )
1823     {
1824     case 8:
1825         /*
1826          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1827          */
1828         xvisual_template.screen =   p_vout->p_sys->i_screen;
1829         xvisual_template.class =    DirectColor;
1830         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1831                                     VisualScreenMask | VisualClassMask,
1832                                     &xvisual_template, &i_count );
1833         if( p_xvisual == NULL )
1834         {
1835             msg_Err( p_vout, "no PseudoColor visual available" );
1836             return VLC_EGENERIC;
1837         }
1838         p_vout->p_sys->i_bytes_per_pixel = 1;
1839         p_vout->output.pf_setpalette = SetPalette;
1840         break;
1841     case 15:
1842     case 16:
1843     case 24:
1844     default:
1845         /*
1846          * Screen depth is higher than 8bpp. TrueColor visual is used.
1847          */
1848         xvisual_template.screen =   p_vout->p_sys->i_screen;
1849         xvisual_template.class =    TrueColor;
1850         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1851                                     VisualScreenMask | VisualClassMask,
1852                                     &xvisual_template, &i_count );
1853         if( p_xvisual == NULL )
1854         {
1855             msg_Err( p_vout, "no TrueColor visual available" );
1856             return VLC_EGENERIC;
1857         }
1858
1859         p_vout->output.i_rmask = p_xvisual->red_mask;
1860         p_vout->output.i_gmask = p_xvisual->green_mask;
1861         p_vout->output.i_bmask = p_xvisual->blue_mask;
1862
1863         /* There is no difference yet between 3 and 4 Bpp. The only way
1864          * to find the actual number of bytes per pixel is to list supported
1865          * pixmap formats. */
1866         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1867         p_vout->p_sys->i_bytes_per_pixel = 0;
1868
1869         for( ; i_count-- ; p_formats++ )
1870         {
1871             /* Under XFree4.0, the list contains pixmap formats available
1872              * through all video depths ; so we have to check against current
1873              * depth. */
1874             if( p_formats->depth == p_vout->p_sys->i_screen_depth )
1875             {
1876                 if( p_formats->bits_per_pixel / 8
1877                         > p_vout->p_sys->i_bytes_per_pixel )
1878                 {
1879                     p_vout->p_sys->i_bytes_per_pixel = p_formats->bits_per_pixel / 8;
1880                 }
1881             }
1882         }
1883         break;
1884     }
1885     p_vout->p_sys->p_visual = p_xvisual->visual;
1886     XFree( p_xvisual );
1887 #endif
1888
1889     return VLC_SUCCESS;
1890 }
1891
1892 #ifdef HAVE_SYS_SHM_H
1893 /*****************************************************************************
1894  * CreateShmImage: create an XImage or XvImage using shared memory extension
1895  *****************************************************************************
1896  * Prepare an XImage or XvImage for display function.
1897  * The order of the operations respects the recommandations of the mit-shm
1898  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1899  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1900  *****************************************************************************/
1901 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1902                                     Display* p_display, EXTRA_ARGS_SHM,
1903                                     int i_width, int i_height )
1904 {
1905     IMAGE_TYPE *p_image;
1906
1907     /* Create XImage / XvImage */
1908 #ifdef MODULE_NAME_IS_xvideo
1909     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1910                                 i_width, i_height, p_shm );
1911 #else
1912     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1913                                p_shm, i_width, i_height );
1914 #endif
1915     if( p_image == NULL )
1916     {
1917         msg_Err( p_vout, "image creation failed" );
1918         return NULL;
1919     }
1920
1921     /* Allocate shared memory segment - 0776 set the access permission
1922      * rights (like umask), they are not yet supported by all X servers */
1923     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1924     if( p_shm->shmid < 0 )
1925     {
1926         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1927                          strerror( errno ) );
1928         IMAGE_FREE( p_image );
1929         return NULL;
1930     }
1931
1932     /* Attach shared memory segment to process (read/write) */
1933     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1934     if(! p_shm->shmaddr )
1935     {
1936         msg_Err( p_vout, "cannot attach shared memory (%s)",
1937                          strerror(errno));
1938         IMAGE_FREE( p_image );
1939         shmctl( p_shm->shmid, IPC_RMID, 0 );
1940         return NULL;
1941     }
1942
1943     /* Read-only data. We won't be using XShmGetImage */
1944     p_shm->readOnly = True;
1945
1946     /* Attach shared memory segment to X server */
1947     if( XShmAttach( p_display, p_shm ) == False )
1948     {
1949         msg_Err( p_vout, "cannot attach shared memory to X server" );
1950         IMAGE_FREE( p_image );
1951         shmctl( p_shm->shmid, IPC_RMID, 0 );
1952         shmdt( p_shm->shmaddr );
1953         return NULL;
1954     }
1955
1956     /* Send image to X server. This instruction is required, since having
1957      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1958      * and remember NOT to use XFlush ! */
1959     XSync( p_display, False );
1960
1961 #if 0
1962     /* Mark the shm segment to be removed when there are no more
1963      * attachements, so it is automatic on process exit or after shmdt */
1964     shmctl( p_shm->shmid, IPC_RMID, 0 );
1965 #endif
1966
1967     return p_image;
1968 }
1969 #endif
1970
1971 /*****************************************************************************
1972  * CreateImage: create an XImage or XvImage
1973  *****************************************************************************
1974  * Create a simple image used as a buffer.
1975  *****************************************************************************/
1976 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
1977                                  Display *p_display, EXTRA_ARGS,
1978                                  int i_width, int i_height )
1979 {
1980     byte_t *    p_data;                           /* image data storage zone */
1981     IMAGE_TYPE *p_image;
1982 #ifdef MODULE_NAME_IS_x11
1983     int         i_quantum;                     /* XImage quantum (see below) */
1984     int         i_bytes_per_line;
1985 #endif
1986
1987     /* Allocate memory for image */
1988 #ifdef MODULE_NAME_IS_xvideo
1989     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1990 #else
1991     i_bytes_per_line = i_width * i_bytes_per_pixel;
1992     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1993 #endif
1994     if( !p_data )
1995     {
1996         msg_Err( p_vout, "out of memory" );
1997         return NULL;
1998     }
1999
2000 #ifdef MODULE_NAME_IS_x11
2001     /* Optimize the quantum of a scanline regarding its size - the quantum is
2002        a diviser of the number of bits between the start of two scanlines. */
2003     if( i_bytes_per_line & 0xf )
2004     {
2005         i_quantum = 0x8;
2006     }
2007     else if( i_bytes_per_line & 0x10 )
2008     {
2009         i_quantum = 0x10;
2010     }
2011     else
2012     {
2013         i_quantum = 0x20;
2014     }
2015 #endif
2016
2017     /* Create XImage. p_data will be automatically freed */
2018 #ifdef MODULE_NAME_IS_xvideo
2019     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2020                              p_data, i_width, i_height );
2021 #else
2022     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2023                             p_data, i_width, i_height, i_quantum, 0 );
2024 #endif
2025     if( p_image == NULL )
2026     {
2027         msg_Err( p_vout, "XCreateImage() failed" );
2028         free( p_data );
2029         return NULL;
2030     }
2031
2032     return p_image;
2033 }
2034
2035 #ifdef MODULE_NAME_IS_x11
2036 /*****************************************************************************
2037  * SetPalette: sets an 8 bpp palette
2038  *****************************************************************************
2039  * This function sets the palette given as an argument. It does not return
2040  * anything, but could later send information on which colors it was unable
2041  * to set.
2042  *****************************************************************************/
2043 static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
2044 {
2045     int i;
2046     XColor p_colors[255];
2047
2048     /* allocate palette */
2049     for( i = 0; i < 255; i++ )
2050     {
2051         /* kludge: colors are indexed reversely because color 255 seems
2052          * to be reserved for black even if we try to set it to white */
2053         p_colors[ i ].pixel = 255 - i;
2054         p_colors[ i ].pad   = 0;
2055         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2056         p_colors[ i ].red   = red[ 255 - i ];
2057         p_colors[ i ].blue  = blue[ 255 - i ];
2058         p_colors[ i ].green = green[ 255 - i ];
2059     }
2060
2061     XStoreColors( p_vout->p_sys->p_display,
2062                   p_vout->p_sys->colormap, p_colors, 255 );
2063 }
2064 #endif