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 1.13 2003/02/01 18:54:10 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 *,
 115                              uint16_t *, uint16_t *, uint16_t * );
 116 #endif
 117
 118 /*****************************************************************************
 119  * Activate: allocate X11 video thread output method
 120  *****************************************************************************
 121  * This function allocate and initialize a X11 vout method. It uses some of the
 122  * vout properties to choose the window size, and change them according to the
 123  * actual properties of the display.
 124  *****************************************************************************/
 125 int E_(Activate) ( vlc_object_t *p_this )
 126 {
 127     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 128     char *       psz_display;
 129 #ifdef MODULE_NAME_IS_xvideo
 130     char *       psz_chroma;
 131     vlc_fourcc_t i_chroma = 0;
 132     vlc_bool_t   b_chroma = 0;
 133 #endif
 134
 135     p_vout->pf_init = InitVideo;
 136     p_vout->pf_end = EndVideo;
 137     p_vout->pf_manage = ManageVideo;
 138     p_vout->pf_render = NULL;
 139     p_vout->pf_display = DisplayVideo;
 140
 141     /* Allocate structure */
 142     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 143     if( p_vout->p_sys == NULL )
 144     {
 145         msg_Err( p_vout, "out of memory" );
 146         return VLC_ENOMEM;
 147     }
 148
 149     /* Open display, using the "display" config variable or the DISPLAY
 150      * environment variable */
 151     psz_display = config_GetPsz( p_vout, MODULE_STRING "-display" );
 152
 153     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 154
 155     if( p_vout->p_sys->p_display == NULL )                          /* error */
 156     {
 157         msg_Err( p_vout, "cannot open display %s",
 158                          XDisplayName( psz_display ) );
 159         free( p_vout->p_sys );
 160         if( psz_display ) free( psz_display );
 161         return VLC_EGENERIC;
 162     }
 163     if( psz_display ) free( psz_display );
 164
 165     /* Get a screen ID matching the XOpenDisplay return value */
 166     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 167
 168 #ifdef MODULE_NAME_IS_xvideo
 169     psz_chroma = config_GetPsz( p_vout, "xvideo-chroma" );
 170     if( psz_chroma )
 171     {
 172         if( strlen( psz_chroma ) >= 4 )
 173         {
 174             i_chroma  = (unsigned char)psz_chroma[0] <<  0;
 175             i_chroma |= (unsigned char)psz_chroma[1] <<  8;
 176             i_chroma |= (unsigned char)psz_chroma[2] << 16;
 177             i_chroma |= (unsigned char)psz_chroma[3] << 24;
 178
 179             b_chroma = 1;
 180         }
 181
 182         free( psz_chroma );
 183     }
 184
 185     if( b_chroma )
 186     {
 187         msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
 188                  i_chroma, (char*)&i_chroma );
 189     }
 190     else
 191     {
 192         i_chroma = p_vout->render.i_chroma;
 193     }
 194
 195     /* Check that we have access to an XVideo port providing this chroma */
 196     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout, i_chroma,
 197                                              &p_vout->output.i_chroma );
 198     if( p_vout->p_sys->i_xvport < 0 )
 199     {
 200         /* If a specific chroma format was requested, then we don't try to
 201          * be cleverer than the user. He knew pretty well what he wanted. */
 202         if( b_chroma )
 203         {
 204             XCloseDisplay( p_vout->p_sys->p_display );
 205             free( p_vout->p_sys );
 206             return VLC_EGENERIC;
 207         }
 208
 209         /* It failed, but it's not completely lost ! We try to open an
 210          * XVideo port for an YUY2 picture. We'll need to do an YUV
 211          * conversion, but at least it has got scaling. */
 212         p_vout->p_sys->i_xvport =
 213                         XVideoGetPort( p_vout, VLC_FOURCC('Y','U','Y','2'),
 214                                                &p_vout->output.i_chroma );
 215         if( p_vout->p_sys->i_xvport < 0 )
 216         {
 217             /* It failed, but it's not completely lost ! We try to open an
 218              * XVideo port for a simple 16bpp RGB picture. We'll need to do
 219              * an YUV conversion, but at least it has got scaling. */
 220             p_vout->p_sys->i_xvport =
 221                             XVideoGetPort( p_vout, VLC_FOURCC('R','V','1','6'),
 222                                                    &p_vout->output.i_chroma );
 223             if( p_vout->p_sys->i_xvport < 0 )
 224             {
 225                 XCloseDisplay( p_vout->p_sys->p_display );
 226                 free( p_vout->p_sys );
 227                 return VLC_EGENERIC;
 228             }
 229         }
 230     }
 231 #endif
 232
 233     /* Create blank cursor (for mouse cursor autohiding) */
 234     p_vout->p_sys->i_time_mouse_last_moved = mdate();
 235     p_vout->p_sys->b_mouse_pointer_visible = 1;
 236     CreateCursor( p_vout );
 237
 238     /* Set main window's size */
 239     p_vout->p_sys->original_window.i_width = p_vout->i_window_width;
 240     p_vout->p_sys->original_window.i_height = p_vout->i_window_height;
 241
 242     /* Spawn base window - this window will include the video output window,
 243      * but also command buttons, subtitles and other indicators */
 244     if( CreateWindow( p_vout, &p_vout->p_sys->original_window ) )
 245     {
 246         msg_Err( p_vout, "cannot create X11 window" );
 247         DestroyCursor( p_vout );
 248         XCloseDisplay( p_vout->p_sys->p_display );
 249         free( p_vout->p_sys );
 250         return VLC_EGENERIC;
 251     }
 252
 253     /* Open and initialize device. */
 254     if( InitDisplay( p_vout ) )
 255     {
 256         msg_Err( p_vout, "cannot initialize X11 display" );
 257         DestroyCursor( p_vout );
 258         DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 259         XCloseDisplay( p_vout->p_sys->p_display );
 260         free( p_vout->p_sys );
 261         return VLC_EGENERIC;
 262     }
 263
 264     /* Disable screen saver */
 265     DisableXScreenSaver( p_vout );
 266
 267     /* Misc init */
 268     p_vout->p_sys->b_altfullscreen = 0;
 269     p_vout->p_sys->i_time_button_last_pressed = 0;
 270
 271     return VLC_SUCCESS;
 272 }
 273
 274 /*****************************************************************************
 275  * Deactivate: destroy X11 video thread output method
 276  *****************************************************************************
 277  * Terminate an output method created by Open
 278  *****************************************************************************/
 279 void E_(Deactivate) ( vlc_object_t *p_this )
 280 {
 281     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 282
 283     /* If the fullscreen window is still open, close it */
 284     if( p_vout->b_fullscreen )
 285     {
 286         ToggleFullScreen( p_vout );
 287     }
 288
 289     /* Restore cursor if it was blanked */
 290     if( !p_vout->p_sys->b_mouse_pointer_visible )
 291     {
 292         ToggleCursor( p_vout );
 293     }
 294
 295 #ifdef MODULE_NAME_IS_x11
 296     /* Destroy colormap */
 297     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 298     {
 299         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 300     }
 301 #else
 302     XVideoReleasePort( p_vout, p_vout->p_sys->i_xvport );
 303 #endif
 304
 305     DestroyCursor( p_vout );
 306     EnableXScreenSaver( p_vout );
 307     DestroyWindow( p_vout, &p_vout->p_sys->original_window );
 308
 309     XCloseDisplay( p_vout->p_sys->p_display );
 310
 311     /* Destroy structure */
 312     free( p_vout->p_sys );
 313 }
 314
 315 /*****************************************************************************
 316  * InitVideo: initialize X11 video thread output method
 317  *****************************************************************************
 318  * This function create the XImages needed by the output thread. It is called
 319  * at the beginning of the thread, but also each time the window is resized.
 320  *****************************************************************************/
 321 static int InitVideo( vout_thread_t *p_vout )
 322 {
 323     int i_index;
 324     picture_t *p_pic;
 325
 326     I_OUTPUTPICTURES = 0;
 327
 328 #ifdef MODULE_NAME_IS_xvideo
 329     /* Initialize the output structure; we already found an XVideo port,
 330      * and the corresponding chroma we will be using. Since we can
 331      * arbitrary scale, stick to the coordinates and aspect. */
 332     p_vout->output.i_width  = p_vout->render.i_width;
 333     p_vout->output.i_height = p_vout->render.i_height;
 334     p_vout->output.i_aspect = p_vout->render.i_aspect;
 335
 336     switch( p_vout->output.i_chroma )
 337     {
 338         case VLC_FOURCC('R','V','1','5'):
 339             p_vout->output.i_rmask = 0x001f;
 340             p_vout->output.i_gmask = 0x07e0;
 341             p_vout->output.i_bmask = 0xf800;
 342             break;
 343         case VLC_FOURCC('R','V','1','6'):
 344             p_vout->output.i_rmask = 0x001f;
 345             p_vout->output.i_gmask = 0x03e0;
 346             p_vout->output.i_bmask = 0x7c00;
 347             break;
 348     }
 349
 350 #else
 351     /* Initialize the output structure: RGB with square pixels, whatever
 352      * the input format is, since it's the only format we know */
 353     switch( p_vout->p_sys->i_screen_depth )
 354     {
 355         case 8: /* FIXME: set the palette */
 356             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
 357         case 15:
 358             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
 359         case 16:
 360             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
 361         case 24:
 362             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 363         case 32:
 364             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
 365         default:
 366             msg_Err( p_vout, "unknown screen depth %i",
 367                      p_vout->p_sys->i_screen_depth );
 368             return VLC_SUCCESS;
 369     }
 370
 371     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 372                        p_vout->p_sys->p_win->i_height,
 373                        &i_index, &i_index,
 374                        &p_vout->output.i_width, &p_vout->output.i_height );
 375
 376     /* Assume we have square pixels */
 377     p_vout->output.i_aspect = p_vout->output.i_width
 378                                * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
 379 #endif
 380
 381     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 382     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 383     {
 384         p_pic = NULL;
 385
 386         /* Find an empty picture slot */
 387         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 388         {
 389           if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 390             {
 391                 p_pic = p_vout->p_picture + i_index;
 392                 break;
 393             }
 394         }
 395
 396         /* Allocate the picture */
 397         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 398         {
 399             break;
 400         }
 401
 402         p_pic->i_status = DESTROYED_PICTURE;
 403         p_pic->i_type   = DIRECT_PICTURE;
 404
 405         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 406
 407         I_OUTPUTPICTURES++;
 408     }
 409
 410     return VLC_SUCCESS;
 411 }
 412
 413  /*****************************************************************************
 414  * DisplayVideo: displays previously rendered output
 415  *****************************************************************************
 416  * This function sends the currently rendered image to X11 server.
 417  * (The Xv extension takes care of "double-buffering".)
 418  *****************************************************************************/
 419 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 420 {
 421     int i_width, i_height, i_x, i_y;
 422
 423     vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 424                        p_vout->p_sys->p_win->i_height,
 425                        &i_x, &i_y, &i_width, &i_height );
 426
 427 #ifdef HAVE_SYS_SHM_H
 428     if( p_vout->p_sys->b_shm )
 429     {
 430         /* Display rendered image using shared memory extension */
 431 #   ifdef MODULE_NAME_IS_xvideo
 432         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 433                        p_vout->p_sys->p_win->video_window,
 434                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 435                        0 /*src_x*/, 0 /*src_y*/,
 436                        p_vout->output.i_width, p_vout->output.i_height,
 437                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 438                        False /* Don't put True here or you'll waste your CPU */ );
 439 #   else
 440         XShmPutImage( p_vout->p_sys->p_display,
 441                       p_vout->p_sys->p_win->video_window,
 442                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 443                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 444                       p_vout->output.i_width, p_vout->output.i_height,
 445                       False /* Don't put True here ! */ );
 446 #   endif
 447     }
 448     else
 449 #endif /* HAVE_SYS_SHM_H */
 450     {
 451         /* Use standard XPutImage -- this is gonna be slow ! */
 452 #ifdef MODULE_NAME_IS_xvideo
 453         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 454                     p_vout->p_sys->p_win->video_window,
 455                     p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 456                     0 /*src_x*/, 0 /*src_y*/,
 457                     p_vout->output.i_width, p_vout->output.i_height,
 458                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 459 #else
 460         XPutImage( p_vout->p_sys->p_display,
 461                    p_vout->p_sys->p_win->video_window,
 462                    p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
 463                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 464                    p_vout->output.i_width, p_vout->output.i_height );
 465 #endif
 466     }
 467
 468     /* Make sure the command is sent now - do NOT use XFlush !*/
 469     XSync( p_vout->p_sys->p_display, False );
 470 }
 471
 472 /*****************************************************************************
 473  * ManageVideo: handle X11 events
 474  *****************************************************************************
 475  * This function should be called regularly by video output thread. It manages
 476  * X11 events and allows window resizing. It returns a non null value on
 477  * error.
 478  *****************************************************************************/
 479 static int ManageVideo( vout_thread_t *p_vout )
 480 {
 481     XEvent      xevent;                                         /* X11 event */
 482     char        i_key;                                    /* ISO Latin-1 key */
 483     KeySym      x_key_symbol;
 484     vlc_value_t val;
 485
 486     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 487      * output window's size changed, MapNotify and UnmapNotify to know if the
 488      * window is mapped (and if the display is useful), and ClientMessages
 489      * to intercept window destruction requests */
 490
 491     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 492                               p_vout->p_sys->p_win->base_window,
 493                               StructureNotifyMask | KeyPressMask |
 494                               ButtonPressMask | ButtonReleaseMask |
 495                               PointerMotionMask | Button1MotionMask , &xevent )
 496            == True )
 497     {
 498         /* ConfigureNotify event: prepare  */
 499         if( xevent.type == ConfigureNotify )
 500         {
 501             if( (unsigned int)xevent.xconfigure.width
 502                    != p_vout->p_sys->p_win->i_width
 503               || (unsigned int)xevent.xconfigure.height
 504                     != p_vout->p_sys->p_win->i_height )
 505             {
 506                 /* Update dimensions */
 507                 p_vout->i_changes |= VOUT_SIZE_CHANGE;
 508                 p_vout->p_sys->p_win->i_width = xevent.xconfigure.width;
 509                 p_vout->p_sys->p_win->i_height = xevent.xconfigure.height;
 510             }
 511         }
 512         /* Keyboard event */
 513         else if( xevent.type == KeyPress )
 514         {
 515             /* We may have keys like F1 trough F12, ESC ... */
 516             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 517                                              xevent.xkey.keycode, 0 );
 518             switch( (int)x_key_symbol )
 519             {
 520             case XK_Escape:
 521                 if( p_vout->b_fullscreen )
 522                 {
 523                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 524                 }
 525                 else
 526                 {
 527                     p_vout->p_vlc->b_die = 1;
 528                 }
 529                 break;
 530             case XK_Menu:
 531                 {
 532                     intf_thread_t *p_intf;
 533                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 534                                                       FIND_ANYWHERE );
 535                     if( p_intf )
 536                     {
 537                         p_intf->b_menu_change = 1;
 538                         vlc_object_release( p_intf );
 539                     }
 540                 }
 541                 break;
 542             case XK_Left:
 543                 input_Seek( p_vout, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 544                 break;
 545             case XK_Right:
 546                 input_Seek( p_vout, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 547                 break;
 548             case XK_Up:
 549                 input_Seek( p_vout, 60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 550                 break;
 551             case XK_Down:
 552                 input_Seek( p_vout, -60, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 553                 break;
 554             case XK_Home:
 555                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_SET );
 556                 break;
 557             case XK_End:
 558                 input_Seek( p_vout, 0, INPUT_SEEK_BYTES | INPUT_SEEK_END );
 559                 break;
 560             case XK_Page_Up:
 561                 input_Seek( p_vout, 900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 562                 break;
 563             case XK_Page_Down:
 564                 input_Seek( p_vout, -900, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 565                 break;
 566             case XK_space:
 567                 input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
 568                 break;
 569
 570             case XK_F1: network_ChannelJoin( p_vout, 1 ); break;
 571             case XK_F2: network_ChannelJoin( p_vout, 2 ); break;
 572             case XK_F3: network_ChannelJoin( p_vout, 3 ); break;
 573             case XK_F4: network_ChannelJoin( p_vout, 4 ); break;
 574             case XK_F5: network_ChannelJoin( p_vout, 5 ); break;
 575             case XK_F6: network_ChannelJoin( p_vout, 6 ); break;
 576             case XK_F7: network_ChannelJoin( p_vout, 7 ); break;
 577             case XK_F8: network_ChannelJoin( p_vout, 8 ); break;
 578             case XK_F9: network_ChannelJoin( p_vout, 9 ); break;
 579             case XK_F10: network_ChannelJoin( p_vout, 10 ); break;
 580             case XK_F11: network_ChannelJoin( p_vout, 11 ); break;
 581             case XK_F12: network_ChannelJoin( p_vout, 12 ); break;
 582
 583             default:
 584                 /* "Normal Keys"
 585                  * The reason why I use this instead of XK_0 is that
 586                  * with XLookupString, we don't have to care about
 587                  * keymaps. */
 588
 589                 if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 590                 {
 591                     /* FIXME: handle stuff here */
 592                     switch( i_key )
 593                     {
 594                     case 'q':
 595                     case 'Q':
 596                         p_vout->p_vlc->b_die = 1;
 597                         break;
 598                     case 'f':
 599                     case 'F':
 600                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 601                         break;
 602
 603                     default:
 604                         break;
 605                     }
 606                 }
 607                 break;
 608             }
 609         }
 610         /* Mouse click */
 611         else if( xevent.type == ButtonPress )
 612         {
 613             switch( ((XButtonEvent *)&xevent)->button )
 614             {
 615                 case Button1:
 616
 617                     /* detect double-clicks */
 618                     if( ( ((XButtonEvent *)&xevent)->time -
 619                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 620                     {
 621                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 622                     }
 623
 624                     p_vout->p_sys->i_time_button_last_pressed =
 625                         ((XButtonEvent *)&xevent)->time;
 626                     break;
 627
 628                 case Button4:
 629                     input_Seek( p_vout, 15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 630                     break;
 631
 632                 case Button5:
 633                     input_Seek( p_vout, -15, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 634                     break;
 635             }
 636         }
 637         /* Mouse release */
 638         else if( xevent.type == ButtonRelease )
 639         {
 640             switch( ((XButtonEvent *)&xevent)->button )
 641             {
 642                 case Button1:
 643                     val.b_bool = VLC_TRUE;
 644                     var_Set( p_vout, "mouse-clicked", val );
 645                     break;
 646
 647                 case Button3:
 648                     {
 649                         intf_thread_t *p_intf;
 650                         p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 651                                                           FIND_ANYWHERE );
 652                         if( p_intf )
 653                         {
 654                             p_intf->b_menu_change = 1;
 655                             vlc_object_release( p_intf );
 656                         }
 657                     }
 658                     break;
 659             }
 660         }
 661         /* Mouse move */
 662         else if( xevent.type == MotionNotify )
 663         {
 664             int i_width, i_height, i_x, i_y;
 665             vlc_value_t val;
 666
 667             /* somewhat different use for vout_PlacePicture:
 668              * here the values are needed to give to mouse coordinates
 669              * in the original picture space */
 670             vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 671                                p_vout->p_sys->p_win->i_height,
 672                                &i_x, &i_y, &i_width, &i_height );
 673
 674             val.i_int = ( xevent.xmotion.x - i_x )
 675                          * p_vout->render.i_width / i_width;
 676             var_Set( p_vout, "mouse-x", val );
 677             val.i_int = ( xevent.xmotion.y - i_y )
 678                          * p_vout->render.i_height / i_height;
 679             var_Set( p_vout, "mouse-y", val );
 680
 681             val.b_bool = VLC_TRUE;
 682             var_Set( p_vout, "mouse-moved", val );
 683
 684             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 685             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 686             {
 687                 ToggleCursor( p_vout );
 688             }
 689         }
 690         else if( xevent.type == ReparentNotify /* XXX: why do we get this? */
 691                   || xevent.type == MapNotify
 692                   || xevent.type == UnmapNotify )
 693         {
 694             /* Ignore these events */
 695         }
 696         else /* Other events */
 697         {
 698             msg_Warn( p_vout, "unhandled event %d received", xevent.type );
 699         }
 700     }
 701
 702     /* Handle events for video output sub-window */
 703     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 704                               p_vout->p_sys->p_win->video_window,
 705                               ExposureMask, &xevent ) == True )
 706     {
 707         /* Window exposed (only handled if stream playback is paused) */
 708         if( xevent.type == Expose )
 709         {
 710             if( ((XExposeEvent *)&xevent)->count == 0 )
 711             {
 712                 /* (if this is the last a collection of expose events...) */
 713 #if 0
 714                 if( p_vout->p_vlc->p_input_bank->pp_input[0] != NULL )
 715                 {
 716                     if( PAUSE_S == p_vout->p_vlc->p_input_bank->pp_input[0]
 717                                                    ->stream.control.i_status )
 718                     {
 719                         /* XVideoDisplay( p_vout )*/;
 720                     }
 721                 }
 722 #endif
 723             }
 724         }
 725     }
 726
 727     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 728      * are handled - according to the man pages, the format is always 32
 729      * in this case */
 730     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 731                              ClientMessage, &xevent ) )
 732     {
 733         if( (xevent.xclient.message_type == p_vout->p_sys->p_win->wm_protocols)
 734                && ((Atom)xevent.xclient.data.l[0]
 735                      == p_vout->p_sys->p_win->wm_delete_window ) )
 736         {
 737             p_vout->p_vlc->b_die = 1;
 738         }
 739     }
 740
 741     /*
 742      * Fullscreen Change
 743      */
 744     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 745     {
 746         ToggleFullScreen( p_vout );
 747         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 748     }
 749
 750     /*
 751      * Size change
 752      *
 753      * (Needs to be placed after VOUT_FULLSREEN_CHANGE because we can activate
 754      *  the size flag inside the fullscreen routine)
 755      */
 756     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 757     {
 758         int i_width, i_height, i_x, i_y;
 759
 760         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 761
 762 #ifdef MODULE_NAME_IS_x11
 763         /* We need to signal the vout thread about the size change because it
 764          * is doing the rescaling */
 765         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 766 #endif
 767
 768         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
 769                            p_vout->p_sys->p_win->i_height,
 770                            &i_x, &i_y, &i_width, &i_height );
 771
 772         XResizeWindow( p_vout->p_sys->p_display,
 773                        p_vout->p_sys->p_win->video_window, i_width, i_height );
 774
 775         XMoveWindow( p_vout->p_sys->p_display,
 776                      p_vout->p_sys->p_win->video_window, i_x, i_y );
 777     }
 778
 779     /* Autohide Cursour */
 780     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 781     {
 782         /* Hide the mouse automatically */
 783         if( p_vout->p_sys->b_mouse_pointer_visible )
 784         {
 785             ToggleCursor( p_vout );
 786         }
 787     }
 788
 789     return 0;
 790 }
 791
 792 /*****************************************************************************
 793  * EndVideo: terminate X11 video thread output method
 794  *****************************************************************************
 795  * Destroy the X11 XImages created by Init. It is called at the end of
 796  * the thread, but also each time the window is resized.
 797  *****************************************************************************/
 798 static void EndVideo( vout_thread_t *p_vout )
 799 {
 800     int i_index;
 801
 802     /* Free the direct buffers we allocated */
 803     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 804     {
 805         i_index--;
 806         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 807     }
 808 }
 809
 810 /* following functions are local */
 811
 812 /*****************************************************************************
 813  * CreateWindow: open and set-up X11 main window
 814  *****************************************************************************/
 815 static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
 816 {
 817     XSizeHints              xsize_hints;
 818     XSetWindowAttributes    xwindow_attributes;
 819     XGCValues               xgcvalues;
 820     XEvent                  xevent;
 821
 822     vlc_bool_t              b_expose;
 823     vlc_bool_t              b_configure_notify;
 824     vlc_bool_t              b_map_notify;
 825
 826     vlc_value_t             val;
 827     long long int           i_drawable;
 828
 829     /* Prepare window manager hints and properties */
 830     xsize_hints.base_width          = p_win->i_width;
 831     xsize_hints.base_height         = p_win->i_height;
 832     xsize_hints.flags               = PSize;
 833     p_win->wm_protocols =
 834              XInternAtom( p_vout->p_sys->p_display, "WM_PROTOCOLS", True );
 835     p_win->wm_delete_window =
 836              XInternAtom( p_vout->p_sys->p_display, "WM_DELETE_WINDOW", True );
 837
 838     /* Prepare window attributes */
 839     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 840     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 841                                                      p_vout->p_sys->i_screen);
 842     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 843
 844     /* Check whether someone provided us with a window ID */
 845     var_Get( p_vout->p_vlc, "drawable", &val );
 846     i_drawable = p_vout->b_fullscreen ? 0 : val.i_int;
 847
 848     if( !i_drawable )
 849     {
 850         p_win->b_owned = VLC_TRUE;
 851
 852         /* Create the window and set hints - the window must receive
 853          * ConfigureNotify events, and until it is displayed, Expose and
 854          * MapNotify events. */
 855
 856         p_win->base_window =
 857             XCreateWindow( p_vout->p_sys->p_display,
 858                            DefaultRootWindow( p_vout->p_sys->p_display ),
 859                            0, 0,
 860                            p_win->i_width, p_win->i_height,
 861                            0,
 862                            0, InputOutput, 0,
 863                            CWBackingStore | CWBackPixel | CWEventMask,
 864                            &xwindow_attributes );
 865
 866         if( !p_vout->b_fullscreen )
 867         {
 868             /* Set window manager hints and properties: size hints, command,
 869              * window's name, and accepted protocols */
 870             XSetWMNormalHints( p_vout->p_sys->p_display,
 871                                p_win->base_window, &xsize_hints );
 872             XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
 873                          p_vout->p_vlc->ppsz_argv, p_vout->p_vlc->i_argc );
 874
 875             XStoreName( p_vout->p_sys->p_display, p_win->base_window,
 876 #ifdef MODULE_NAME_IS_x11
 877                         VOUT_TITLE " (X11 output)"
 878 #else
 879                         VOUT_TITLE " (XVideo output)"
 880 #endif
 881                       );
 882         }
 883     }
 884     else
 885     {
 886         p_win->b_owned = VLC_FALSE;
 887         p_win->base_window = i_drawable;
 888
 889         XChangeWindowAttributes( p_vout->p_sys->p_display,
 890                                  p_win->base_window,
 891                                  CWBackingStore | CWBackPixel | CWEventMask,
 892                                  &xwindow_attributes );
 893     }
 894
 895     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 896         || (p_win->wm_delete_window == None)
 897         || !XSetWMProtocols( p_vout->p_sys->p_display, p_win->base_window,
 898                              &p_win->wm_delete_window, 1 ) )
 899     {
 900         /* WM_DELETE_WINDOW is not supported by window manager */
 901         msg_Warn( p_vout, "missing or bad window manager" );
 902     }
 903
 904     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 905      * event when using functions like XCopyArea */
 906     xgcvalues.graphics_exposures = False;
 907     p_win->gc = XCreateGC( p_vout->p_sys->p_display,
 908                            p_win->base_window,
 909                            GCGraphicsExposures, &xgcvalues );
 910
 911     if( p_win->b_owned )
 912     {
 913         /* Send orders to server, and wait until window is displayed - three
 914          * events must be received: a MapNotify event, an Expose event allowing
 915          * drawing in the window, and a ConfigureNotify to get the window
 916          * dimensions. Once those events have been received, only
 917          * ConfigureNotify events need to be received. */
 918         b_expose = 0;
 919         b_configure_notify = 0;
 920         b_map_notify = 0;
 921         XMapWindow( p_vout->p_sys->p_display, p_win->base_window );
 922         do
 923         {
 924             XNextEvent( p_vout->p_sys->p_display, &xevent);
 925             if( (xevent.type == Expose)
 926                 && (xevent.xexpose.window == p_win->base_window) )
 927             {
 928                 b_expose = 1;
 929             }
 930             else if( (xevent.type == MapNotify)
 931                      && (xevent.xmap.window == p_win->base_window) )
 932             {
 933                 b_map_notify = 1;
 934             }
 935             else if( (xevent.type == ConfigureNotify)
 936                      && (xevent.xconfigure.window == p_win->base_window) )
 937             {
 938                 b_configure_notify = 1;
 939                 p_win->i_width = xevent.xconfigure.width;
 940                 p_win->i_height = xevent.xconfigure.height;
 941             }
 942         } while( !( b_expose && b_configure_notify && b_map_notify ) );
 943     }
 944     else
 945     {
 946         /* Get the window's geometry information */
 947         Window dummy1;
 948         unsigned int dummy2, dummy3;
 949         XGetGeometry( p_vout->p_sys->p_display, p_win->base_window,
 950                       &dummy1, &dummy2, &dummy3,
 951                       &p_win->i_width,
 952                       &p_win->i_height,
 953                       &dummy2, &dummy3 );
 954     }
 955
 956     XSelectInput( p_vout->p_sys->p_display, p_win->base_window,
 957                   StructureNotifyMask | KeyPressMask |
 958                   ButtonPressMask | ButtonReleaseMask |
 959                   PointerMotionMask );
 960
 961 #ifdef MODULE_NAME_IS_x11
 962     if( p_win->b_owned &&
 963          XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
 964     {
 965         /* Allocate a new palette */
 966         p_vout->p_sys->colormap =
 967             XCreateColormap( p_vout->p_sys->p_display,
 968                              DefaultRootWindow( p_vout->p_sys->p_display ),
 969                              DefaultVisual( p_vout->p_sys->p_display,
 970                                             p_vout->p_sys->i_screen ),
 971                              AllocAll );
 972
 973         xwindow_attributes.colormap = p_vout->p_sys->colormap;
 974         XChangeWindowAttributes( p_vout->p_sys->p_display, p_win->base_window,
 975                                  CWColormap, &xwindow_attributes );
 976     }
 977 #endif
 978
 979     /* Create video output sub-window. */
 980     p_win->video_window =  XCreateSimpleWindow(
 981                                       p_vout->p_sys->p_display,
 982                                       p_win->base_window, 0, 0,
 983                                       p_win->i_width, p_win->i_height,
 984                                       0,
 985                                       BlackPixel( p_vout->p_sys->p_display,
 986                                                   p_vout->p_sys->i_screen ),
 987                                       WhitePixel( p_vout->p_sys->p_display,
 988                                                   p_vout->p_sys->i_screen ) );
 989
 990     XSetWindowBackground( p_vout->p_sys->p_display, p_win->video_window,
 991                           BlackPixel( p_vout->p_sys->p_display,
 992                                       p_vout->p_sys->i_screen ) );
 993
 994     XMapWindow( p_vout->p_sys->p_display, p_win->video_window );
 995     XSelectInput( p_vout->p_sys->p_display, p_win->video_window,
 996                   ExposureMask );
 997
 998     /* make sure the video window will be centered in the next ManageVideo() */
 999     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1000
1001     /* If the cursor was formerly blank than blank it again */
1002     if( !p_vout->p_sys->b_mouse_pointer_visible )
1003     {
1004         ToggleCursor( p_vout );
1005         ToggleCursor( p_vout );
1006     }
1007
1008     /* Do NOT use XFlush here ! */
1009     XSync( p_vout->p_sys->p_display, False );
1010
1011     /* At this stage, the window is open, displayed, and ready to
1012      * receive data */
1013     p_vout->p_sys->p_win = p_win;
1014
1015     return VLC_SUCCESS;
1016 }
1017
1018 /*****************************************************************************
1019  * DestroyWindow: destroy the window
1020  *****************************************************************************
1021  *
1022  *****************************************************************************/
1023 static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
1024 {
1025     /* Do NOT use XFlush here ! */
1026     XSync( p_vout->p_sys->p_display, False );
1027
1028     XDestroyWindow( p_vout->p_sys->p_display, p_win->video_window );
1029     XFreeGC( p_vout->p_sys->p_display, p_win->gc );
1030
1031     if( p_win->b_owned )
1032     {
1033         XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
1034         XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
1035     }
1036 }
1037
1038 /*****************************************************************************
1039  * NewPicture: allocate a picture
1040  *****************************************************************************
1041  * Returns 0 on success, -1 otherwise
1042  *****************************************************************************/
1043 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1044 {
1045     /* We know the chroma, allocate a buffer which will be used
1046      * directly by the decoder */
1047     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1048
1049     if( p_pic->p_sys == NULL )
1050     {
1051         return -1;
1052     }
1053
1054 #ifdef HAVE_SYS_SHM_H
1055     if( p_vout->p_sys->b_shm )
1056     {
1057         /* Create image using XShm extension */
1058         p_pic->p_sys->p_image =
1059             CreateShmImage( p_vout, p_vout->p_sys->p_display,
1060 #   ifdef MODULE_NAME_IS_xvideo
1061                             p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1062 #   else
1063                             p_vout->p_sys->p_visual,
1064                             p_vout->p_sys->i_screen_depth,
1065 #   endif
1066                             &p_pic->p_sys->shminfo,
1067                             p_vout->output.i_width, p_vout->output.i_height );
1068     }
1069     else
1070 #endif /* HAVE_SYS_SHM_H */
1071     {
1072         /* Create image without XShm extension */
1073         p_pic->p_sys->p_image =
1074             CreateImage( p_vout, p_vout->p_sys->p_display,
1075 #ifdef MODULE_NAME_IS_xvideo
1076                          p_vout->p_sys->i_xvport, p_vout->output.i_chroma,
1077 #else
1078                          p_vout->p_sys->p_visual,
1079                          p_vout->p_sys->i_screen_depth,
1080                          p_vout->p_sys->i_bytes_per_pixel,
1081 #endif
1082                          p_vout->output.i_width, p_vout->output.i_height );
1083     }
1084
1085     if( p_pic->p_sys->p_image == NULL )
1086     {
1087         free( p_pic->p_sys );
1088         return -1;
1089     }
1090
1091     switch( p_vout->output.i_chroma )
1092     {
1093 #ifdef MODULE_NAME_IS_xvideo
1094         case VLC_FOURCC('I','4','2','0'):
1095
1096             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1097                                + p_pic->p_sys->p_image->offsets[0];
1098             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1099             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1100             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1101             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1102
1103             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1104                                + p_pic->p_sys->p_image->offsets[1];
1105             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1106             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1107             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1108             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1109
1110             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1111                                + p_pic->p_sys->p_image->offsets[2];
1112             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1113             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1114             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1115             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1116
1117             p_pic->i_planes = 3;
1118             break;
1119
1120         case VLC_FOURCC('Y','V','1','2'):
1121
1122             p_pic->Y_PIXELS = p_pic->p_sys->p_image->data
1123                                + p_pic->p_sys->p_image->offsets[0];
1124             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1125             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[0];
1126             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1127             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
1128             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;
1129
1130             p_pic->U_PIXELS = p_pic->p_sys->p_image->data
1131                                + p_pic->p_sys->p_image->offsets[2];
1132             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1133             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[2];
1134             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1135             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1136
1137             p_pic->V_PIXELS = p_pic->p_sys->p_image->data
1138                                + p_pic->p_sys->p_image->offsets[1];
1139             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1140             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_image->pitches[1];
1141             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1142             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;
1143
1144             p_pic->i_planes = 3;
1145             break;
1146
1147         case VLC_FOURCC('Y','2','1','1'):
1148
1149             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1150                                   + p_pic->p_sys->p_image->offsets[0];
1151             p_pic->p->i_lines = p_vout->output.i_height;
1152             /* XXX: this just looks so plain wrong... check it out ! */
1153             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
1154             p_pic->p->i_pixel_pitch = 4;
1155             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1156
1157             p_pic->i_planes = 1;
1158             break;
1159
1160         case VLC_FOURCC('Y','U','Y','2'):
1161         case VLC_FOURCC('U','Y','V','Y'):
1162
1163             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1164                                   + p_pic->p_sys->p_image->offsets[0];
1165             p_pic->p->i_lines = p_vout->output.i_height;
1166             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0];
1167             p_pic->p->i_pixel_pitch = 4;
1168             p_pic->p->i_visible_pitch = p_vout->output.i_width * 4;
1169
1170             p_pic->i_planes = 1;
1171             break;
1172
1173         case VLC_FOURCC('R','V','1','5'):
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 = 2;
1180             p_pic->p->i_visible_pitch = p_vout->output.i_width * 2;
1181
1182             p_pic->i_planes = 1;
1183             break;
1184
1185         case VLC_FOURCC('R','V','1','6'):
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_vout->output.i_width * 2;
1193
1194             p_pic->i_planes = 1;
1195             break;
1196
1197 #else
1198         case VLC_FOURCC('R','G','B','2'):
1199
1200             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1201                                   + p_pic->p_sys->p_image->xoffset;
1202             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1203             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1204             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1205             p_pic->p->i_visible_pitch = p_pic->p_sys->p_image->width;
1206
1207             p_pic->i_planes = 1;
1208
1209             break;
1210
1211         case VLC_FOURCC('R','V','1','6'):
1212         case VLC_FOURCC('R','V','1','5'):
1213
1214             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1215                                   + p_pic->p_sys->p_image->xoffset;
1216             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1217             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1218             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1219             p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_image->width;
1220
1221             p_pic->i_planes = 1;
1222
1223             break;
1224
1225         case VLC_FOURCC('R','V','3','2'):
1226         case VLC_FOURCC('R','V','2','4'):
1227
1228             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
1229                                   + p_pic->p_sys->p_image->xoffset;
1230             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
1231             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
1232             p_pic->p->i_pixel_pitch = p_pic->p_sys->p_image->depth;
1233             p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_image->width;
1234
1235             p_pic->i_planes = 1;
1236
1237             break;
1238 #endif
1239
1240         default:
1241             /* Unknown chroma, tell the guy to get lost */
1242             IMAGE_FREE( p_pic->p_sys->p_image );
1243             free( p_pic->p_sys );
1244             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1245                      p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
1246             p_pic->i_planes = 0;
1247             return -1;
1248     }
1249
1250     return 0;
1251 }
1252
1253 /*****************************************************************************
1254  * FreePicture: destroy a picture allocated with NewPicture
1255  *****************************************************************************
1256  * Destroy XImage AND associated data. If using Shm, detach shared memory
1257  * segment from server and process, then free it. The XDestroyImage manpage
1258  * says that both the image structure _and_ the data pointed to by the
1259  * image structure are freed, so no need to free p_image->data.
1260  *****************************************************************************/
1261 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1262 {
1263     /* The order of operations is correct */
1264 #ifdef HAVE_SYS_SHM_H
1265     if( p_vout->p_sys->b_shm )
1266     {
1267         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1268         IMAGE_FREE( p_pic->p_sys->p_image );
1269
1270         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1271         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1272         {
1273             msg_Err( p_vout, "cannot detach shared memory (%s)",
1274                              strerror(errno) );
1275         }
1276     }
1277     else
1278 #endif
1279     {
1280         IMAGE_FREE( p_pic->p_sys->p_image );
1281     }
1282
1283     /* Do NOT use XFlush here ! */
1284     XSync( p_vout->p_sys->p_display, False );
1285
1286     free( p_pic->p_sys );
1287 }
1288
1289 /*****************************************************************************
1290  * ToggleFullScreen: Enable or disable full screen mode
1291  *****************************************************************************
1292  * This function will switch between fullscreen and window mode.
1293  *****************************************************************************/
1294 static void ToggleFullScreen ( vout_thread_t *p_vout )
1295 {
1296     Atom prop;
1297     XEvent xevent;
1298     mwmhints_t mwmhints;
1299     XSetWindowAttributes attributes;
1300
1301     p_vout->b_fullscreen = !p_vout->b_fullscreen;
1302
1303     if( p_vout->b_fullscreen )
1304     {
1305         msg_Dbg( p_vout, "entering fullscreen mode" );
1306
1307         p_vout->p_sys->b_altfullscreen =
1308             config_GetInt( p_vout, MODULE_STRING "-altfullscreen" );
1309
1310         if( p_vout->p_sys->p_win->b_owned )
1311         {
1312             XUnmapWindow( p_vout->p_sys->p_display,
1313                           p_vout->p_sys->p_win->base_window);
1314         }
1315
1316         p_vout->p_sys->p_win = &p_vout->p_sys->fullscreen_window;
1317
1318         /* fullscreen window size and position */
1319         p_vout->p_sys->p_win->i_width =
1320             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1321         p_vout->p_sys->p_win->i_height =
1322             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1323
1324         CreateWindow( p_vout, p_vout->p_sys->p_win );
1325
1326         /* To my knowledge there are two ways to create a borderless window.
1327          * There's the generic way which is to tell x to bypass the window
1328          * manager, but this creates problems with the focus of other
1329          * applications.
1330          * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1331          * luckily seems to be supported by most window managers. */
1332         if( !p_vout->p_sys->b_altfullscreen )
1333         {
1334             mwmhints.flags = MWM_HINTS_DECORATIONS;
1335             mwmhints.decorations = False;
1336
1337             prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1338                                 False );
1339             XChangeProperty( p_vout->p_sys->p_display,
1340                              p_vout->p_sys->p_win->base_window,
1341                              prop, prop, 32, PropModeReplace,
1342                              (unsigned char *)&mwmhints,
1343                              PROP_MWM_HINTS_ELEMENTS );
1344         }
1345         else
1346         {
1347             /* brute force way to remove decorations */
1348             attributes.override_redirect = True;
1349             XChangeWindowAttributes( p_vout->p_sys->p_display,
1350                                      p_vout->p_sys->p_win->base_window,
1351                                      CWOverrideRedirect,
1352                                      &attributes);
1353         }
1354
1355         /* Make sure the change is effective */
1356         XReparentWindow( p_vout->p_sys->p_display,
1357                          p_vout->p_sys->p_win->base_window,
1358                          DefaultRootWindow( p_vout->p_sys->p_display ),
1359                          0, 0 );
1360
1361         /* fullscreen window size and position */
1362         p_vout->p_sys->p_win->i_width =
1363             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1364         p_vout->p_sys->p_win->i_height =
1365             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
1366
1367         XMoveResizeWindow( p_vout->p_sys->p_display,
1368                            p_vout->p_sys->p_win->base_window,
1369                            0, 0,
1370                            p_vout->p_sys->p_win->i_width,
1371                            p_vout->p_sys->p_win->i_height );
1372     }
1373     else
1374     {
1375         msg_Dbg( p_vout, "leaving fullscreen mode" );
1376         DestroyWindow( p_vout, &p_vout->p_sys->fullscreen_window );
1377         p_vout->p_sys->p_win = &p_vout->p_sys->original_window;
1378
1379         if( p_vout->p_sys->p_win->b_owned )
1380         {
1381             XMapWindow( p_vout->p_sys->p_display,
1382                         p_vout->p_sys->p_win->base_window);
1383         }
1384     }
1385
1386     /* Unfortunately, using XSync() here is not enough to ensure the
1387      * window has already been mapped because the XMapWindow() request
1388      * has not necessarily been sent directly to our window (remember,
1389      * the call is first redirected to the window manager) */
1390     if( p_vout->p_sys->p_win->b_owned )
1391     {
1392         do
1393         {
1394             XWindowEvent( p_vout->p_sys->p_display,
1395                           p_vout->p_sys->p_win->base_window,
1396                           StructureNotifyMask, &xevent );
1397         } while( xevent.type != MapNotify );
1398     }
1399     else
1400     {
1401         XSync( p_vout->p_sys->p_display, False );
1402     }
1403
1404     /* Becareful, this can generate a BadMatch error if the window is not
1405      * already mapped by the server (see above) */
1406     XSetInputFocus(p_vout->p_sys->p_display,
1407                    p_vout->p_sys->p_win->base_window,
1408                    RevertToParent,
1409                    CurrentTime);
1410
1411     /* signal that the size needs to be updated */
1412     p_vout->i_changes |= VOUT_SIZE_CHANGE;
1413 }
1414
1415 /*****************************************************************************
1416  * EnableXScreenSaver: enable screen saver
1417  *****************************************************************************
1418  * This function enables the screen saver on a display after it has been
1419  * disabled by XDisableScreenSaver.
1420  * FIXME: what happens if multiple vlc sessions are running at the same
1421  *        time ???
1422  *****************************************************************************/
1423 static void EnableXScreenSaver( vout_thread_t *p_vout )
1424 {
1425 #ifdef DPMSINFO_IN_DPMS_H
1426     int dummy;
1427 #endif
1428
1429     if( p_vout->p_sys->i_ss_timeout )
1430     {
1431         XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1432                          p_vout->p_sys->i_ss_interval,
1433                          p_vout->p_sys->i_ss_blanking,
1434                          p_vout->p_sys->i_ss_exposure );
1435     }
1436
1437     /* Restore DPMS settings */
1438 #ifdef DPMSINFO_IN_DPMS_H
1439     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1440     {
1441         if( p_vout->p_sys->b_ss_dpms )
1442         {
1443             DPMSEnable( p_vout->p_sys->p_display );
1444         }
1445     }
1446 #endif
1447 }
1448
1449 /*****************************************************************************
1450  * DisableXScreenSaver: disable screen saver
1451  *****************************************************************************
1452  * See XEnableXScreenSaver
1453  *****************************************************************************/
1454 static void DisableXScreenSaver( vout_thread_t *p_vout )
1455 {
1456 #ifdef DPMSINFO_IN_DPMS_H
1457     int dummy;
1458 #endif
1459
1460     /* Save screen saver informations */
1461     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1462                      &p_vout->p_sys->i_ss_interval,
1463                      &p_vout->p_sys->i_ss_blanking,
1464                      &p_vout->p_sys->i_ss_exposure );
1465
1466     /* Disable screen saver */
1467     if( p_vout->p_sys->i_ss_timeout )
1468     {
1469         XSetScreenSaver( p_vout->p_sys->p_display, 0,
1470                          p_vout->p_sys->i_ss_interval,
1471                          p_vout->p_sys->i_ss_blanking,
1472                          p_vout->p_sys->i_ss_exposure );
1473     }
1474
1475     /* Disable DPMS */
1476 #ifdef DPMSINFO_IN_DPMS_H
1477     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1478     {
1479         CARD16 unused;
1480         /* Save DPMS current state */
1481         DPMSInfo( p_vout->p_sys->p_display, &unused,
1482                   &p_vout->p_sys->b_ss_dpms );
1483         DPMSDisable( p_vout->p_sys->p_display );
1484    }
1485 #endif
1486 }
1487
1488 /*****************************************************************************
1489  * CreateCursor: create a blank mouse pointer
1490  *****************************************************************************/
1491 static void CreateCursor( vout_thread_t *p_vout )
1492 {
1493     XColor cursor_color;
1494
1495     p_vout->p_sys->cursor_pixmap =
1496         XCreatePixmap( p_vout->p_sys->p_display,
1497                        DefaultRootWindow( p_vout->p_sys->p_display ),
1498                        1, 1, 1 );
1499
1500     XParseColor( p_vout->p_sys->p_display,
1501                  XCreateColormap( p_vout->p_sys->p_display,
1502                                   DefaultRootWindow(
1503                                                     p_vout->p_sys->p_display ),
1504                                   DefaultVisual(
1505                                                 p_vout->p_sys->p_display,
1506                                                 p_vout->p_sys->i_screen ),
1507                                   AllocNone ),
1508                  "black", &cursor_color );
1509
1510     p_vout->p_sys->blank_cursor =
1511         XCreatePixmapCursor( p_vout->p_sys->p_display,
1512                              p_vout->p_sys->cursor_pixmap,
1513                              p_vout->p_sys->cursor_pixmap,
1514                              &cursor_color, &cursor_color, 1, 1 );
1515 }
1516
1517 /*****************************************************************************
1518  * DestroyCursor: destroy the blank mouse pointer
1519  *****************************************************************************/
1520 static void DestroyCursor( vout_thread_t *p_vout )
1521 {
1522     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1523 }
1524
1525 /*****************************************************************************
1526  * ToggleCursor: hide or show the mouse pointer
1527  *****************************************************************************
1528  * This function hides the X pointer if it is visible by setting the pointer
1529  * sprite to a blank one. To show it again, we disable the sprite.
1530  *****************************************************************************/
1531 static void ToggleCursor( vout_thread_t *p_vout )
1532 {
1533     if( p_vout->p_sys->b_mouse_pointer_visible )
1534     {
1535         XDefineCursor( p_vout->p_sys->p_display,
1536                        p_vout->p_sys->p_win->base_window,
1537                        p_vout->p_sys->blank_cursor );
1538         p_vout->p_sys->b_mouse_pointer_visible = 0;
1539     }
1540     else
1541     {
1542         XUndefineCursor( p_vout->p_sys->p_display,
1543                          p_vout->p_sys->p_win->base_window );
1544         p_vout->p_sys->b_mouse_pointer_visible = 1;
1545     }
1546 }
1547
1548 #ifdef MODULE_NAME_IS_xvideo
1549 /*****************************************************************************
1550  * XVideoGetPort: get YUV12 port
1551  *****************************************************************************/
1552 static int XVideoGetPort( vout_thread_t *p_vout,
1553                           vlc_fourcc_t i_chroma, vlc_fourcc_t *pi_newchroma )
1554 {
1555     XvAdaptorInfo *p_adaptor;
1556     unsigned int i;
1557     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1558     int i_selected_port;
1559
1560     switch( XvQueryExtension( p_vout->p_sys->p_display, &i, &i, &i, &i, &i ) )
1561     {
1562         case Success:
1563             break;
1564
1565         case XvBadExtension:
1566             msg_Warn( p_vout, "XvBadExtension" );
1567             return -1;
1568
1569         case XvBadAlloc:
1570             msg_Warn( p_vout, "XvBadAlloc" );
1571             return -1;
1572
1573         default:
1574             msg_Warn( p_vout, "XvQueryExtension failed" );
1575             return -1;
1576     }
1577
1578     switch( XvQueryAdaptors( p_vout->p_sys->p_display,
1579                              DefaultRootWindow( p_vout->p_sys->p_display ),
1580                              &i_num_adaptors, &p_adaptor ) )
1581     {
1582         case Success:
1583             break;
1584
1585         case XvBadExtension:
1586             msg_Warn( p_vout, "XvBadExtension for XvQueryAdaptors" );
1587             return -1;
1588
1589         case XvBadAlloc:
1590             msg_Warn( p_vout, "XvBadAlloc for XvQueryAdaptors" );
1591             return -1;
1592
1593         default:
1594             msg_Warn( p_vout, "XvQueryAdaptors failed" );
1595             return -1;
1596     }
1597
1598     i_selected_port = -1;
1599     i_requested_adaptor = config_GetInt( p_vout, "xvideo-adaptor" );
1600
1601     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1602     {
1603         XvImageFormatValues *p_formats;
1604         int i_format, i_num_formats;
1605         int i_port;
1606
1607         /* If we requested an adaptor and it's not this one, we aren't
1608          * interested */
1609         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1610         {
1611             continue;
1612         }
1613
1614         /* If the adaptor doesn't have the required properties, skip it */
1615         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1616             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1617         {
1618             continue;
1619         }
1620
1621         /* Check that adaptor supports our requested format... */
1622         p_formats = XvListImageFormats( p_vout->p_sys->p_display,
1623                                         p_adaptor[i_adaptor].base_id,
1624                                         &i_num_formats );
1625
1626         for( i_format = 0;
1627              i_format < i_num_formats && ( i_selected_port == -1 );
1628              i_format++ )
1629         {
1630             /* Code removed, we can get this through xvinfo anyway */
1631 #if 0
1632             XvEncodingInfo  *p_enc;
1633             int             i_enc, i_num_encodings;
1634             XvAttribute     *p_attr;
1635             int             i_attr, i_num_attributes;
1636 #endif
1637
1638             /* If this is not the format we want, or at least a
1639              * similar one, forget it */
1640             if( !vout_ChromaCmp( p_formats[ i_format ].id, i_chroma ) )
1641             {
1642                 continue;
1643             }
1644
1645             /* Look for the first available port supporting this format */
1646             for( i_port = p_adaptor[i_adaptor].base_id;
1647                  ( i_port < (int)(p_adaptor[i_adaptor].base_id
1648                                    + p_adaptor[i_adaptor].num_ports) )
1649                    && ( i_selected_port == -1 );
1650                  i_port++ )
1651             {
1652                 if( XvGrabPort( p_vout->p_sys->p_display, i_port, CurrentTime )
1653                      == Success )
1654                 {
1655                     i_selected_port = i_port;
1656                     *pi_newchroma = p_formats[ i_format ].id;
1657                 }
1658             }
1659
1660             /* If no free port was found, forget it */
1661             if( i_selected_port == -1 )
1662             {
1663                 continue;
1664             }
1665
1666             /* If we found a port, print information about it */
1667             msg_Dbg( p_vout, "adaptor %i, port %i, format 0x%x (%4.4s) %s",
1668                      i_adaptor, i_selected_port, p_formats[ i_format ].id,
1669                      (char *)&p_formats[ i_format ].id,
1670                      ( p_formats[ i_format ].format == XvPacked ) ?
1671                          "packed" : "planar" );
1672
1673 #if 0
1674             msg_Dbg( p_vout, " encoding list:" );
1675
1676             if( XvQueryEncodings( p_vout->p_sys->p_display, i_selected_port,
1677                                   &i_num_encodings, &p_enc )
1678                  != Success )
1679             {
1680                 msg_Dbg( p_vout, "  XvQueryEncodings failed" );
1681                 continue;
1682             }
1683
1684             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1685             {
1686                 msg_Dbg( p_vout, "  id=%ld, name=%s, size=%ldx%ld,"
1687                                       " numerator=%d, denominator=%d",
1688                              p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1689                              p_enc[i_enc].width, p_enc[i_enc].height,
1690                              p_enc[i_enc].rate.numerator,
1691                              p_enc[i_enc].rate.denominator );
1692             }
1693
1694             if( p_enc != NULL )
1695             {
1696                 XvFreeEncodingInfo( p_enc );
1697             }
1698
1699             msg_Dbg( p_vout, " attribute list:" );
1700             p_attr = XvQueryPortAttributes( p_vout->p_sys->p_display,
1701                                             i_selected_port,
1702                                             &i_num_attributes );
1703             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1704             {
1705                 msg_Dbg( p_vout, "  name=%s, flags=[%s%s ], min=%i, max=%i",
1706                       p_attr[i_attr].name,
1707                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1708                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1709                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1710             }
1711
1712             if( p_attr != NULL )
1713             {
1714                 XFree( p_attr );
1715             }
1716 #endif
1717         }
1718
1719         if( p_formats != NULL )
1720         {
1721             XFree( p_formats );
1722         }
1723
1724     }
1725
1726     if( i_num_adaptors > 0 )
1727     {
1728         XvFreeAdaptorInfo( p_adaptor );
1729     }
1730
1731     if( i_selected_port == -1 )
1732     {
1733         if( i_requested_adaptor == -1 )
1734         {
1735             msg_Warn( p_vout, "no free XVideo port found for format "
1736                        "0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
1737         }
1738         else
1739         {
1740             msg_Warn( p_vout, "XVideo adaptor %i does not have a free "
1741                        "XVideo port for format 0x%.8x (%4.4s)",
1742                        i_requested_adaptor, i_chroma, (char*)&i_chroma );
1743         }
1744     }
1745
1746     return i_selected_port;
1747 }
1748
1749 /*****************************************************************************
1750  * XVideoReleasePort: release YUV12 port
1751  *****************************************************************************/
1752 static void XVideoReleasePort( vout_thread_t *p_vout, int i_port )
1753 {
1754     XvUngrabPort( p_vout->p_sys->p_display, i_port, CurrentTime );
1755 }
1756 #endif
1757
1758 /*****************************************************************************
1759  * InitDisplay: open and initialize X11 device
1760  *****************************************************************************
1761  * Create a window according to video output given size, and set other
1762  * properties according to the display properties.
1763  *****************************************************************************/
1764 static int InitDisplay( vout_thread_t *p_vout )
1765 {
1766 #ifdef MODULE_NAME_IS_x11
1767     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1768     XVisualInfo *               p_xvisual;           /* visuals informations */
1769     XVisualInfo                 xvisual_template;         /* visual template */
1770     int                         i_count;                       /* array size */
1771 #endif
1772
1773 #ifdef HAVE_SYS_SHM_H
1774     p_vout->p_sys->b_shm = 0;
1775
1776     if( config_GetInt( p_vout, MODULE_STRING "-shm" ) )
1777     {
1778 #   ifdef SYS_DARWIN
1779         /* FIXME: As of 2001-03-16, XFree4 for MacOS X does not support Xshm */
1780 #   else
1781         p_vout->p_sys->b_shm =
1782                   ( XShmQueryExtension( p_vout->p_sys->p_display ) == True );
1783 #   endif
1784
1785         if( !p_vout->p_sys->b_shm )
1786         {
1787             msg_Warn( p_vout, "XShm video extension is unavailable" );
1788         }
1789     }
1790     else
1791     {
1792         msg_Dbg( p_vout, "disabling XShm video extension" );
1793     }
1794
1795 #else
1796     msg_Warn( p_vout, "XShm video extension is unavailable" );
1797
1798 #endif
1799
1800 #ifdef MODULE_NAME_IS_xvideo
1801     /* XXX The brightness and contrast values should be read from environment
1802      * XXX variables... */
1803 #if 0
1804     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1805     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1806 #endif
1807 #endif
1808
1809 #ifdef MODULE_NAME_IS_x11
1810     /* Initialize structure */
1811     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1812
1813     /* Get screen depth */
1814     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1815                                                    p_vout->p_sys->i_screen );
1816     switch( p_vout->p_sys->i_screen_depth )
1817     {
1818     case 8:
1819         /*
1820          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1821          */
1822         xvisual_template.screen =   p_vout->p_sys->i_screen;
1823         xvisual_template.class =    DirectColor;
1824         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1825                                     VisualScreenMask | VisualClassMask,
1826                                     &xvisual_template, &i_count );
1827         if( p_xvisual == NULL )
1828         {
1829             msg_Err( p_vout, "no PseudoColor visual available" );
1830             return VLC_EGENERIC;
1831         }
1832         p_vout->p_sys->i_bytes_per_pixel = 1;
1833         p_vout->output.pf_setpalette = SetPalette;
1834         break;
1835     case 15:
1836     case 16:
1837     case 24:
1838     default:
1839         /*
1840          * Screen depth is higher than 8bpp. TrueColor visual is used.
1841          */
1842         xvisual_template.screen =   p_vout->p_sys->i_screen;
1843         xvisual_template.class =    TrueColor;
1844         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1845                                     VisualScreenMask | VisualClassMask,
1846                                     &xvisual_template, &i_count );
1847         if( p_xvisual == NULL )
1848         {
1849             msg_Err( p_vout, "no TrueColor visual available" );
1850             return VLC_EGENERIC;
1851         }
1852
1853         p_vout->output.i_rmask = p_xvisual->red_mask;
1854         p_vout->output.i_gmask = p_xvisual->green_mask;
1855         p_vout->output.i_bmask = p_xvisual->blue_mask;
1856
1857         /* There is no difference yet between 3 and 4 Bpp. The only way
1858          * to find the actual number of bytes per pixel is to list supported
1859          * pixmap formats. */
1860         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1861         p_vout->p_sys->i_bytes_per_pixel = 0;
1862
1863         for( ; i_count-- ; p_formats++ )
1864         {
1865             /* Under XFree4.0, the list contains pixmap formats available
1866              * through all video depths ; so we have to check against current
1867              * depth. */
1868             if( p_formats->depth == (int)p_vout->p_sys->i_screen_depth )
1869             {
1870                 if( p_formats->bits_per_pixel / 8
1871                         > (int)p_vout->p_sys->i_bytes_per_pixel )
1872                 {
1873                     p_vout->p_sys->i_bytes_per_pixel =
1874                                                p_formats->bits_per_pixel / 8;
1875                 }
1876             }
1877         }
1878         break;
1879     }
1880     p_vout->p_sys->p_visual = p_xvisual->visual;
1881     XFree( p_xvisual );
1882 #endif
1883
1884     return VLC_SUCCESS;
1885 }
1886
1887 #ifdef HAVE_SYS_SHM_H
1888 /*****************************************************************************
1889  * CreateShmImage: create an XImage or XvImage using shared memory extension
1890  *****************************************************************************
1891  * Prepare an XImage or XvImage for display function.
1892  * The order of the operations respects the recommandations of the mit-shm
1893  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1894  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1895  *****************************************************************************/
1896 static IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
1897                                     Display* p_display, EXTRA_ARGS_SHM,
1898                                     int i_width, int i_height )
1899 {
1900     IMAGE_TYPE *p_image;
1901
1902     /* Create XImage / XvImage */
1903 #ifdef MODULE_NAME_IS_xvideo
1904     p_image = XvShmCreateImage( p_display, i_xvport, i_chroma, 0,
1905                                 i_width, i_height, p_shm );
1906 #else
1907     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1908                                p_shm, i_width, i_height );
1909 #endif
1910     if( p_image == NULL )
1911     {
1912         msg_Err( p_vout, "image creation failed" );
1913         return NULL;
1914     }
1915
1916     /* Allocate shared memory segment - 0776 set the access permission
1917      * rights (like umask), they are not yet supported by all X servers */
1918     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1919     if( p_shm->shmid < 0 )
1920     {
1921         msg_Err( p_vout, "cannot allocate shared image data (%s)",
1922                          strerror( errno ) );
1923         IMAGE_FREE( p_image );
1924         return NULL;
1925     }
1926
1927     /* Attach shared memory segment to process (read/write) */
1928     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1929     if(! p_shm->shmaddr )
1930     {
1931         msg_Err( p_vout, "cannot attach shared memory (%s)",
1932                          strerror(errno));
1933         IMAGE_FREE( p_image );
1934         shmctl( p_shm->shmid, IPC_RMID, 0 );
1935         return NULL;
1936     }
1937
1938     /* Read-only data. We won't be using XShmGetImage */
1939     p_shm->readOnly = True;
1940
1941     /* Attach shared memory segment to X server */
1942     if( XShmAttach( p_display, p_shm ) == False )
1943     {
1944         msg_Err( p_vout, "cannot attach shared memory to X server" );
1945         IMAGE_FREE( p_image );
1946         shmctl( p_shm->shmid, IPC_RMID, 0 );
1947         shmdt( p_shm->shmaddr );
1948         return NULL;
1949     }
1950
1951     /* Send image to X server. This instruction is required, since having
1952      * built a Shm XImage and not using it causes an error on XCloseDisplay,
1953      * and remember NOT to use XFlush ! */
1954     XSync( p_display, False );
1955
1956 #if 0
1957     /* Mark the shm segment to be removed when there are no more
1958      * attachements, so it is automatic on process exit or after shmdt */
1959     shmctl( p_shm->shmid, IPC_RMID, 0 );
1960 #endif
1961
1962     return p_image;
1963 }
1964 #endif
1965
1966 /*****************************************************************************
1967  * CreateImage: create an XImage or XvImage
1968  *****************************************************************************
1969  * Create a simple image used as a buffer.
1970  *****************************************************************************/
1971 static IMAGE_TYPE * CreateImage( vout_thread_t *p_vout,
1972                                  Display *p_display, EXTRA_ARGS,
1973                                  int i_width, int i_height )
1974 {
1975     byte_t *    p_data;                           /* image data storage zone */
1976     IMAGE_TYPE *p_image;
1977 #ifdef MODULE_NAME_IS_x11
1978     int         i_quantum;                     /* XImage quantum (see below) */
1979     int         i_bytes_per_line;
1980 #endif
1981
1982     /* Allocate memory for image */
1983 #ifdef MODULE_NAME_IS_xvideo
1984     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1985 #else
1986     i_bytes_per_line = i_width * i_bytes_per_pixel;
1987     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1988 #endif
1989     if( !p_data )
1990     {
1991         msg_Err( p_vout, "out of memory" );
1992         return NULL;
1993     }
1994
1995 #ifdef MODULE_NAME_IS_x11
1996     /* Optimize the quantum of a scanline regarding its size - the quantum is
1997        a diviser of the number of bits between the start of two scanlines. */
1998     if( i_bytes_per_line & 0xf )
1999     {
2000         i_quantum = 0x8;
2001     }
2002     else if( i_bytes_per_line & 0x10 )
2003     {
2004         i_quantum = 0x10;
2005     }
2006     else
2007     {
2008         i_quantum = 0x20;
2009     }
2010 #endif
2011
2012     /* Create XImage. p_data will be automatically freed */
2013 #ifdef MODULE_NAME_IS_xvideo
2014     p_image = XvCreateImage( p_display, i_xvport, i_chroma,
2015                              p_data, i_width, i_height );
2016 #else
2017     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
2018                             p_data, i_width, i_height, i_quantum, 0 );
2019 #endif
2020     if( p_image == NULL )
2021     {
2022         msg_Err( p_vout, "XCreateImage() failed" );
2023         free( p_data );
2024         return NULL;
2025     }
2026
2027     return p_image;
2028 }
2029
2030 #ifdef MODULE_NAME_IS_x11
2031 /*****************************************************************************
2032  * SetPalette: sets an 8 bpp palette
2033  *****************************************************************************
2034  * This function sets the palette given as an argument. It does not return
2035  * anything, but could later send information on which colors it was unable
2036  * to set.
2037  *****************************************************************************/
2038 static void SetPalette( vout_thread_t *p_vout,
2039                         uint16_t *red, uint16_t *green, uint16_t *blue )
2040 {
2041     int i;
2042     XColor p_colors[255];
2043
2044     /* allocate palette */
2045     for( i = 0; i < 255; i++ )
2046     {
2047         /* kludge: colors are indexed reversely because color 255 seems
2048          * to be reserved for black even if we try to set it to white */
2049         p_colors[ i ].pixel = 255 - i;
2050         p_colors[ i ].pad   = 0;
2051         p_colors[ i ].flags = DoRed | DoGreen | DoBlue;
2052         p_colors[ i ].red   = red[ 255 - i ];
2053         p_colors[ i ].blue  = blue[ 255 - i ];
2054         p_colors[ i ].green = green[ 255 - i ];
2055     }
2056
2057     XStoreColors( p_vout->p_sys->p_display,
2058                   p_vout->p_sys->colormap, p_colors, 255 );
2059 }
2060 #endif