git.sesse.net Git - vlc/blob - modules/video_output/omapfb.c

   1 /*****************************************************************************
   2 * omapfb.c : omap framebuffer plugin for vlc
   3 *****************************************************************************
   4 * Copyright (C) 2008 the VideoLAN team
   5 * $Id$
   6 *
   7 * Authors: Antoine Lejeune <phytos @ videolan.org>
   8 *          Based on fb.c and work of Siarhei Siamashka on mplayer for Maemo
   9 *          Needs a recent omapfb.h to compile
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation; either version 2 of the License, or
  14 * (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24 *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <errno.h>                                                 /* ENOMEM */
  31 #include <fcntl.h>                                                 /* open() */
  32 #include <unistd.h>                                               /* close() */
  33
  34 #include <sys/ioctl.h>
  35 #include <sys/mman.h>                                              /* mmap() */
  36
  37 #include <linux/fb.h>
  38 #include <asm/arch-omap/omapfb.h>
  39
  40 /* Embedded window handling */
  41 #include <X11/Xlib.h>
  42 #include <X11/Xutil.h>
  43 #include <X11/keysym.h>
  44
  45 #ifdef HAVE_OSSO
  46 #include <libosso.h>
  47 #endif
  48
  49 #include <vlc_common.h>
  50 #include <vlc_plugin.h>
  51 #include <vlc_keys.h>
  52 #include <vlc_vout.h>
  53 #include <vlc_playlist.h>
  54
  55 /*****************************************************************************
  56 * Local prototypes
  57 *****************************************************************************/
  58 static int  Create           ( vlc_object_t * );
  59 static void Destroy          ( vlc_object_t * );
  60
  61 static int  Init             ( vout_thread_t * );
  62 static void End              ( vout_thread_t * );
  63 static int  Manage           ( vout_thread_t * );
  64 static void DisplayVideo     ( vout_thread_t *, picture_t * );
  65 static int  Control          ( vout_thread_t *, int, va_list );
  66
  67 static void FreePicture      ( vout_thread_t *, picture_t * );
  68
  69 static int  OpenDisplay      ( vout_thread_t * );
  70 static void CloseDisplay     ( vout_thread_t * );
  71 static void UpdateScreen     ( vout_thread_t *,
  72                                int, int, int, int, int, int, int );
  73
  74 static int  InitWindow       ( vout_thread_t * );
  75 static void CreateWindow     ( vout_sys_t * );
  76 static void ToggleFullScreen ( vout_thread_t * );
  77
  78 #ifdef HAVE_OSSO
  79 static const int i_backlight_on_interval = 300;
  80 #endif
  81
  82 /*****************************************************************************
  83  * Module descriptor
  84  *****************************************************************************/
  85 #define FB_DEV_VAR "omapfbdev"
  86
  87 #define DEVICE_TEXT N_("OMAP Framebuffer device")
  88 #define DEVICE_LONGTEXT N_( \
  89     "OMAP Framebuffer device to use for rendering (usually /dev/fb0).")
  90
  91 #define CHROMA_TEXT N_("Chroma used.")
  92 #define CHROMA_LONGTEXT N_( \
  93     "Force use of a specific chroma for output. Default is Y420 (specific to N770/N8xx hardware)." )
  94
  95 #define OVERLAY_TEXT N_("Embed the overlay")
  96 #define OVERLAY_LONGTEXT N_( \
  97     "Embed the framebuffer overlay into a X11 window" )
  98
  99 vlc_module_begin();
 100     set_shortname( "OMAP framebuffer" );
 101     set_category( CAT_VIDEO );
 102     set_subcategory( SUBCAT_VIDEO_VOUT );
 103     add_file( FB_DEV_VAR, "/dev/fb0", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 104               false );
 105     add_string( "omap-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
 106                 true );
 107     add_bool( "omap-embedded", true, NULL, OVERLAY_TEXT, OVERLAY_LONGTEXT,
 108                  true );
 109     set_description( N_("OMAP framebuffer video output") );
 110     set_capability( "video output", 200 );
 111     set_callbacks( Create, Destroy );
 112 vlc_module_end();
 113
 114 /*****************************************************************************
 115  * omap_window_t: simple structure with the geometry of a window
 116  *****************************************************************************/
 117 struct omap_window_t
 118 {
 119     uint32_t i_x;
 120     uint32_t i_y;
 121     uint32_t i_width;
 122     uint32_t i_height;
 123 };
 124
 125 /*****************************************************************************
 126 * vout_sys_t: video output omap framebuffer method descriptor
 127  *****************************************************************************
 128  * This structure is part of the video output thread descriptor.
 129  * It describes the FB specific properties of an output thread.
 130  *****************************************************************************/
 131 struct vout_sys_t
 132 {
 133     /* Framebuffer information */
 134     int                         i_fd;                       /* device handle */
 135     struct fb_var_screeninfo    fb_vinfo;        /* current mode information */
 136     struct fb_fix_screeninfo    fb_finfo;
 137     struct omapfb_caps          caps;
 138     bool                        b_tearsync;
 139
 140     /* Window information */
 141     struct omap_window_t output_window;    /* Size of the real output window */
 142     struct omap_window_t main_window;  /* Size of the area we got to display */
 143     struct omap_window_t embedded_window;     /* Size of the embedded window */
 144
 145     /* Video information */
 146     uint32_t             i_video_width;                       /* video width */
 147     uint32_t             i_video_height;                     /* video height */
 148     vlc_fourcc_t         i_chroma;
 149     int                  i_color_format;                   /* OMAPFB_COLOR_* */
 150     bool                 b_embed;
 151     bool                 b_video_enabled;        /* Video must be displayed? */
 152     picture_t           *p_output_picture;
 153
 154     /* Video memory */
 155     uint8_t    *p_video;                                      /* base adress */
 156     uint8_t    *p_center;                                   /* output adress */
 157     size_t      i_page_size;                                    /* page size */
 158     int         i_bytes_per_pixel;                /* Bytes used by one pixel */
 159     int         i_line_len;                   /* Length of one line in bytes */
 160
 161     /* X11 */
 162     Display   *p_display;
 163     Window     owner_window;
 164     Window     window;
 165     mtime_t    i_time_button_last_pressed;         /* To detect double click */
 166
 167     /* Dummy memory */
 168     int        i_null_fd;
 169     uint8_t   *p_null;
 170
 171 #ifdef HAVE_OSSO
 172     osso_context_t      *p_octx;
 173     int                 i_backlight_on_counter;
 174 #endif
 175 };
 176
 177 /*****************************************************************************
 178  * Create: allocates omapfb video thread output method
 179  *****************************************************************************
 180  * This function allocates and initializes a FB vout method.
 181  *****************************************************************************/
 182 static int Create( vlc_object_t *p_this )
 183 {
 184     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 185     vout_sys_t    *p_sys;
 186
 187     if( p_vout->fmt_in.i_chroma != VLC_FOURCC('I','4','2','0') &&
 188         p_vout->fmt_in.i_chroma != VLC_FOURCC('I','Y','U','V') &&
 189         p_vout->fmt_in.i_chroma != VLC_FOURCC('Y','V','1','2') )
 190         return VLC_EGENERIC;
 191
 192     /* Allocate instance and initialize some members */
 193     p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
 194     if( p_vout->p_sys == NULL )
 195         return VLC_ENOMEM;
 196     memset( p_sys, 0, sizeof(vout_sys_t) );
 197
 198     p_vout->pf_init = Init;
 199     p_vout->pf_end = End;
 200     p_vout->pf_manage = Manage;
 201     p_vout->pf_render = NULL;
 202     p_vout->pf_display = DisplayVideo;
 203     p_vout->pf_control = Control;
 204
 205     p_sys->b_embed = var_CreateGetInteger( p_vout, "omap-embedded" );
 206     p_sys->b_video_enabled = true;
 207
 208     if( OpenDisplay( p_vout ) )
 209     {
 210         free( p_vout->p_sys );
 211         return VLC_EGENERIC;
 212     }
 213
 214     if( InitWindow( p_vout ) )
 215     {
 216         free( p_vout->p_sys );
 217         return VLC_EGENERIC;
 218     }
 219
 220 #ifdef HAVE_OSSO
 221     p_vout->p_sys->i_backlight_on_counter = i_backlight_on_interval;
 222     p_vout->p_sys->p_octx = osso_initialize( "vlc", VERSION, 0, NULL );
 223     if ( p_vout->p_sys->p_octx == NULL ) {
 224         msg_Err( p_vout, "Could not get osso context" );
 225     } else {
 226         msg_Dbg( p_vout, "Initialized osso context" );
 227     }
 228 #endif
 229
 230     return VLC_SUCCESS;
 231 }
 232
 233 /*****************************************************************************
 234  * Destroy: destroy omapfb video thread output method
 235  *****************************************************************************
 236  * Terminate an output method created by Create
 237  *****************************************************************************/
 238 static void Destroy( vlc_object_t *p_this )
 239 {
 240     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 241
 242     CloseDisplay( p_vout );
 243
 244     if( p_vout->p_sys->b_embed )
 245     {
 246         vout_ReleaseWindow( p_vout, (void *)p_vout->p_sys->owner_window );
 247         if( p_vout->b_fullscreen )
 248             XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 249         XCloseDisplay( p_vout->p_sys->p_display );
 250     }
 251
 252 #ifdef HAVE_OSSO
 253     if ( p_vout->p_sys->p_octx != NULL ) {
 254         msg_Dbg( p_vout, "Deinitializing osso context" );
 255         osso_deinitialize( p_vout->p_sys->p_octx );
 256     }
 257 #endif
 258
 259     /* Destroy structure */
 260     free( p_vout->p_sys );
 261 }
 262
 263
 264 /*****************************************************************************
 265  * Init: initialize omap framebuffer video thread output method
 266  *****************************************************************************/
 267 static int Init( vout_thread_t *p_vout )
 268 {
 269     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 270
 271     // We want to keep the same aspect
 272     p_vout->fmt_out.i_aspect = p_vout->output.i_aspect = p_vout->render.i_aspect;
 273     // We ask where the video should be displayed in the video area
 274     vout_PlacePicture( p_vout, p_sys->main_window.i_width,
 275                        p_sys->main_window.i_height,
 276                        &p_sys->output_window.i_x,
 277                        &p_sys->output_window.i_y,
 278                        &p_sys->output_window.i_width,
 279                        &p_sys->output_window.i_height );
 280     p_sys->output_window.i_x = ( p_sys->output_window.i_x +
 281                                  p_sys->main_window.i_x ) & ~1;
 282     p_sys->output_window.i_y = ( p_sys->output_window.i_y +
 283                                  p_sys->main_window.i_y ) & ~1;
 284
 285     // Hardware upscaling better than software
 286     if( p_vout->fmt_render.i_width <= p_sys->main_window.i_width &&
 287         p_vout->fmt_render.i_height <= p_sys->main_window.i_height )
 288     {
 289         p_sys->i_video_width =
 290         p_vout->output.i_width =
 291         p_vout->fmt_out.i_width =
 292         p_vout->fmt_out.i_visible_width = p_vout->fmt_render.i_width;
 293         p_sys->i_video_height =
 294         p_vout->output.i_height =
 295         p_vout->fmt_out.i_height =
 296         p_vout->fmt_out.i_visible_height = p_vout->fmt_render.i_height;
 297     }
 298     else
 299     {
 300         p_sys->i_video_width =
 301         p_vout->output.i_width =
 302         p_vout->fmt_out.i_width =
 303         p_vout->fmt_out.i_visible_width = p_sys->output_window.i_width;
 304         p_sys->i_video_height =
 305         p_vout->output.i_height =
 306         p_vout->fmt_out.i_height =
 307         p_vout->fmt_out.i_visible_height = p_sys->output_window.i_height;
 308     }
 309
 310     p_vout->output.i_chroma =
 311     p_vout->fmt_out.i_chroma = VLC_FOURCC( 'Y','4','2','0' );
 312     p_sys->i_color_format = OMAPFB_COLOR_YUV420;
 313
 314     // place in the framebuffer where we have to write
 315     p_sys->p_center = p_sys->p_video + p_sys->output_window.i_x*p_sys->i_bytes_per_pixel
 316                       + p_sys->output_window.i_y*p_sys->i_line_len;
 317
 318     // We get and set a direct render vlc picture
 319     I_OUTPUTPICTURES = 0;
 320     picture_t *p_pic = NULL;
 321     int i_index;
 322
 323     for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 324     {
 325         if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 326         {
 327             p_pic = p_vout->p_picture + i_index;
 328             break;
 329         }
 330     }
 331
 332     /* Allocate the picture */
 333     if( p_pic == NULL )
 334     {
 335         return VLC_EGENERIC;
 336     }
 337
 338     p_sys->p_output_picture = p_pic;
 339     p_pic->p->p_pixels = p_vout->p_sys->p_center;
 340     p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
 341     p_pic->p->i_lines = p_sys->i_video_height;
 342     p_pic->p->i_visible_lines = p_sys->i_video_height;
 343     p_pic->p->i_pitch = p_sys->i_line_len;
 344     p_pic->p->i_visible_pitch = p_sys->i_line_len;
 345     p_pic->i_planes = 1;
 346     p_pic->i_status = DESTROYED_PICTURE;
 347     p_pic->i_type   = DIRECT_PICTURE;
 348
 349     PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 350
 351     I_OUTPUTPICTURES++;
 352
 353     return VLC_SUCCESS;
 354 }
 355
 356 /*****************************************************************************
 357  * End: terminate omap framebuffer video thread output method
 358  *****************************************************************************/
 359 static void End( vout_thread_t *p_vout )
 360 {
 361     /* Clear the screen */
 362     UpdateScreen( p_vout, 0, 0,
 363                   p_vout->p_sys->fb_vinfo.xres,
 364                   p_vout->p_sys->fb_vinfo.yres,
 365                   p_vout->p_sys->fb_vinfo.xres,
 366                   p_vout->p_sys->fb_vinfo.yres,
 367                   OMAPFB_COLOR_RGB565 );
 368 }
 369
 370 /*****************************************************************************
 371  * Control: control facility for the vout
 372  *****************************************************************************/
 373 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 374 {
 375     switch( i_query )
 376     {
 377        default:
 378             return vout_vaControlDefault( p_vout, i_query, args );
 379     }
 380 }
 381
 382 /*****************************************************************************
 383 * FreePicture: Destroy the picture and make it free again
 384 ******************************************************************************/
 385 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 386 {
 387     p_pic->p->p_pixels = NULL;
 388     p_pic->i_status = FREE_PICTURE;
 389 }
 390
 391 /*****************************************************************************
 392  * Manage: handle omapfb events
 393  *****************************************************************************
 394  * This function should be called regularly by video output thread.
 395  *****************************************************************************/
 396 static int Manage( vout_thread_t *p_vout )
 397 {
 398     XEvent xevent;
 399
 400     while( XPending( p_vout->p_sys->p_display ) )
 401     {
 402         XNextEvent( p_vout->p_sys->p_display, &xevent );
 403
 404         if( xevent.type == ButtonPress &&
 405             ((XButtonEvent *)&xevent)->button == Button1 )
 406         {
 407             /* detect double-clicks */
 408             if( ( ((XButtonEvent *)&xevent)->time -
 409                     p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 410             {
 411                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 412             }
 413
 414             p_vout->p_sys->i_time_button_last_pressed =
 415                         ((XButtonEvent *)&xevent)->time;
 416         }
 417         else if( xevent.type == KeyPress )
 418         {
 419             KeySym x_key_symbol;
 420             vlc_value_t val;
 421
 422             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 423                                              xevent.xkey.keycode, 0 );
 424
 425             switch( x_key_symbol )
 426             {
 427             case XK_Return:
 428                 val.i_int = ACTIONID_PLAY_PAUSE; break;
 429             case XK_Escape:
 430                 val.i_int = ACTIONID_QUIT; break;
 431             case XK_Down:
 432                 val.i_int = ACTIONID_JUMP_BACKWARD_MEDIUM; break;
 433             case XK_Up:
 434                 val.i_int = ACTIONID_JUMP_FORWARD_MEDIUM; break;
 435             case XK_Right:
 436                 val.i_int = ACTIONID_JUMP_FORWARD_SHORT; break;
 437             case XK_Left:
 438                 val.i_int = ACTIONID_JUMP_BACKWARD_SHORT; break;
 439             case XK_F6:
 440                 val.i_int = ACTIONID_TOGGLE_FULLSCREEN; break;
 441             case XK_F7:
 442                 val.i_int = ACTIONID_VOL_UP; break;
 443             case XK_F8:
 444                 val.i_int = ACTIONID_VOL_DOWN; break;
 445             }
 446             var_SetInteger( p_vout->p_libvlc, "key-action", val.i_int );
 447         }
 448         else if( ( xevent.type == VisibilityNotify &&
 449                  xevent.xvisibility.state == VisibilityUnobscured ) ||
 450                  xevent.type == FocusIn )
 451         {
 452             p_vout->p_sys->b_video_enabled = true;
 453             p_vout->p_sys->p_output_picture->p->p_pixels =
 454                 p_vout->p_sys->p_center;
 455             XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 456                             RevertToParent, CurrentTime );
 457         }
 458         else if( ( xevent.type == VisibilityNotify &&
 459                  xevent.xvisibility.state != VisibilityUnobscured ) ||
 460                  xevent.type == FocusOut || xevent.type == UnmapNotify )
 461         {
 462             UpdateScreen( p_vout, 0, 0,
 463                           p_vout->p_sys->fb_vinfo.xres,
 464                           p_vout->p_sys->fb_vinfo.yres,
 465                           p_vout->p_sys->fb_vinfo.xres,
 466                           p_vout->p_sys->fb_vinfo.yres,
 467                           OMAPFB_COLOR_RGB565 );
 468             p_vout->p_sys->b_video_enabled = false;
 469             p_vout->p_sys->p_output_picture->p->p_pixels =
 470                 p_vout->p_sys->p_null;
 471          }
 472     }
 473
 474     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 475     {
 476         /* Update the object variable and trigger callback */
 477         var_SetBool( p_vout, "fullscreen", !p_vout->b_fullscreen );
 478
 479         if( p_vout->p_sys->b_embed )
 480             ToggleFullScreen( p_vout );
 481         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 482     }
 483
 484     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 485     {
 486         FreePicture( p_vout, p_vout->p_sys->p_output_picture );
 487         if( Init( p_vout ) )
 488         {
 489             msg_Err( p_vout, "cannot reinit framebuffer screen" );
 490             return VLC_EGENERIC;
 491         }
 492     }
 493
 494
 495 #ifdef HAVE_OSSO
 496     if ( p_vout->p_sys->p_octx != NULL ) {
 497         if ( p_vout->p_sys->i_backlight_on_counter == i_backlight_on_interval ) {
 498             if ( osso_display_blanking_pause( p_vout->p_sys->p_octx ) != OSSO_OK ) {
 499                 msg_Err( p_vout, "Could not disable backlight blanking" );
 500         } else {
 501                 msg_Dbg( p_vout, "Backlight blanking disabled" );
 502             }
 503             p_vout->p_sys->i_backlight_on_counter = 0;
 504         } else {
 505             p_vout->p_sys->i_backlight_on_counter ++;
 506         }
 507     }
 508 #endif
 509
 510     return VLC_SUCCESS;
 511 }
 512
 513 /*****************************************************************************
 514  * DisplayVideo: displays previously rendered output
 515  *****************************************************************************
 516  * This function update the screen resulting in the display of the last
 517  * rendered picture.
 518  *****************************************************************************/
 519 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 520 {
 521     VLC_UNUSED( p_pic );
 522
 523     if( !p_vout->p_sys->b_video_enabled )
 524         return;
 525
 526     UpdateScreen( p_vout,
 527                   p_vout->p_sys->output_window.i_x,
 528                   p_vout->p_sys->output_window.i_y,
 529                   p_vout->p_sys->i_video_width,
 530                   p_vout->p_sys->i_video_height,
 531                   p_vout->p_sys->output_window.i_width,
 532                   p_vout->p_sys->output_window.i_height,
 533                   p_vout->p_sys->i_color_format );
 534
 535     // Wait for the window to be fully displayed
 536     ioctl( p_vout->p_sys->i_fd, OMAPFB_SYNC_GFX);
 537 }
 538
 539 /*****************************************************************************
 540  * OpenDisplay: initialize framebuffer
 541  *****************************************************************************/
 542 static int OpenDisplay( vout_thread_t *p_vout )
 543 {
 544     vout_sys_t *p_sys = (vout_sys_t *) p_vout->p_sys;
 545     char *psz_device;                             /* framebuffer device path */
 546
 547     /* Open framebuffer device */
 548     if( !(psz_device = config_GetPsz( p_vout, FB_DEV_VAR )) )
 549     {
 550         msg_Err( p_vout, "don't know which fb device to open" );
 551         return VLC_EGENERIC;
 552     }
 553
 554     p_sys->i_fd = open( psz_device, O_RDWR );
 555     if( p_sys->i_fd == -1 )
 556     {
 557         msg_Err( p_vout, "cannot open %s (%m)", psz_device );
 558         free( psz_device );
 559         return VLC_EGENERIC;
 560     }
 561     free( psz_device );
 562     psz_device = NULL;
 563
 564     // Get caps, try older interface if needed
 565     if( ioctl( p_sys->i_fd, OMAPFB_GET_CAPS, &p_sys->caps ) != 0 )
 566     {
 567         if( ioctl( p_sys->i_fd, OMAP_IOR( 42, unsigned long ), &p_sys->caps ) != 0 )
 568         {
 569             msg_Err( p_vout, "OMAPFB_GET_CAPS ioctl failed" );
 570             close( p_sys->i_fd );
 571             return VLC_EGENERIC;
 572         }
 573     }
 574
 575     if( ( p_sys->caps.ctrl & OMAPFB_CAPS_TEARSYNC ) != 0 )
 576         p_sys->b_tearsync = true;
 577
 578     if( ioctl( p_sys->i_fd, FBIOGET_VSCREENINFO, &p_sys->fb_vinfo ) )
 579     {
 580         msg_Err( p_vout, "Can't get VSCREENINFO: %s", strerror(errno) );
 581         return VLC_EGENERIC;
 582     }
 583     if( ioctl( p_sys->i_fd, FBIOGET_FSCREENINFO, &p_sys->fb_finfo ) )
 584     {
 585         msg_Err( p_vout, "Can't get FSCREENINFO: %s", strerror(errno) );
 586         return VLC_EGENERIC;
 587     }
 588
 589     p_sys->i_bytes_per_pixel = 2;
 590     p_sys->i_page_size = p_sys->fb_finfo.smem_len;
 591     p_sys->i_line_len = p_sys->fb_finfo.line_length;
 592
 593     if( (p_sys->p_video = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
 594                                             p_sys->i_fd, 0 )) == MAP_FAILED )
 595     {
 596         msg_Err( p_vout, "Can't mmap: %s\n", strerror(errno) );
 597         return VLC_EGENERIC;
 598     }
 599
 600     p_sys->p_display = XOpenDisplay( NULL );
 601
 602     /* Open /dev/null and map it */
 603     p_sys->i_null_fd = open( "/dev/zero", O_RDWR );
 604     if( p_sys->i_null_fd == -1 )
 605     {
 606         msg_Err( p_vout, "cannot open /dev/zero (%m)" );
 607         return VLC_EGENERIC;
 608     }
 609
 610     if( (p_sys->p_null = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE,
 611                                           MAP_PRIVATE, p_sys->i_null_fd, 0 )) == MAP_FAILED )
 612     {
 613         msg_Err( p_vout, "Can't mmap 2: %s\n", strerror(errno) );
 614         return VLC_EGENERIC;
 615     }
 616
 617     return VLC_SUCCESS;
 618 }
 619
 620 /*****************************************************************************
 621  * CloseDisplay: terminate FB video thread output method
 622  *****************************************************************************/
 623 static void CloseDisplay( vout_thread_t *p_vout )
 624 {
 625     munmap( p_vout->p_sys->p_video, p_vout->p_sys->i_page_size );
 626     munmap( p_vout->p_sys->p_null,  p_vout->p_sys->i_page_size );
 627
 628     close( p_vout->p_sys->i_fd );
 629     close( p_vout->p_sys->i_null_fd );
 630 }
 631
 632 /*****************************************************************************
 633  * UpdateScreen: update the screen of the omapfb
 634  *****************************************************************************/
 635 static void UpdateScreen( vout_thread_t *p_vout, int i_x, int i_y,
 636                           int i_width, int i_height,
 637                           int i_out_width, int i_out_height, int i_format )
 638 {
 639     struct omapfb_update_window update;
 640     update.x = i_x;
 641     update.y = i_y;
 642     update.width = i_width;
 643     update.height = i_height;
 644     update.out_x = i_x;
 645     update.out_y = i_y;
 646     update.out_width = i_out_width;
 647     update.out_height = i_out_height;
 648     update.format = i_format;
 649     if( p_vout->p_sys->b_tearsync )
 650         update.format |= OMAPFB_FORMAT_FLAG_TEARSYNC;
 651     ioctl( p_vout->p_sys->i_fd, OMAPFB_UPDATE_WINDOW, &update );
 652 }
 653
 654 /*****************************************************************************
 655  * InitWindow: get embedded window and init X11
 656  *****************************************************************************/
 657 static int InitWindow( vout_thread_t *p_vout )
 658 {
 659     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 660
 661     if( p_sys->b_embed )
 662     {
 663         p_sys->p_display = XOpenDisplay( NULL );
 664
 665         // Request window from interface
 666         p_sys->owner_window =
 667             vout_RequestWindow( p_vout,
 668                                 &p_sys->embedded_window.i_x,
 669                                 &p_sys->embedded_window.i_y,
 670                                 &p_sys->embedded_window.i_width,
 671                                 &p_sys->embedded_window.i_height );
 672         p_sys->main_window = p_sys->embedded_window;
 673
 674         // We have to create a new window to get some events
 675         // (ButtonPress for example)
 676         CreateWindow( p_sys );
 677     }
 678     else
 679     {
 680         // No embedding, fullscreen framebuffer overlay with no events handling
 681         p_sys->main_window.i_x = p_sys->main_window.i_y = 0;
 682         p_sys->main_window.i_width = p_sys->fb_vinfo.xres;
 683         p_sys->main_window.i_height = p_sys->fb_vinfo.yres;
 684         p_vout->b_fullscreen = true;
 685         var_SetBool( p_vout, "fullscreen", p_vout->b_fullscreen );
 686     }
 687
 688     return VLC_SUCCESS;
 689 }
 690
 691 static void CreateWindow( vout_sys_t *p_sys )
 692 {
 693     XSetWindowAttributes    xwindow_attributes;
 694     xwindow_attributes.backing_store = Always;
 695     xwindow_attributes.background_pixel =
 696         BlackPixel( p_sys->p_display, DefaultScreen(p_sys->p_display) );
 697     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 698     p_sys->window = XCreateWindow( p_sys->p_display,
 699                                    p_sys->owner_window,
 700                                    0, 0,
 701                                    p_sys->main_window.i_width,
 702                                    p_sys->main_window.i_height,
 703                                    0,
 704                                    0, InputOutput, 0,
 705                                    CWBackingStore | CWBackPixel | CWEventMask,
 706                                    &xwindow_attributes );
 707
 708     XMapWindow( p_sys->p_display, p_sys->window );
 709     XSelectInput( p_sys->p_display, p_sys->window,
 710                   KeyPressMask | ButtonPressMask | StructureNotifyMask |
 711                   VisibilityChangeMask | FocusChangeMask );
 712     XSelectInput( p_sys->p_display, p_sys->owner_window,
 713                   StructureNotifyMask );
 714     XSetInputFocus( p_sys->p_display, p_sys->window, RevertToParent, CurrentTime );
 715 }
 716
 717 static void ToggleFullScreen ( vout_thread_t * p_vout )
 718 {
 719     p_vout->b_fullscreen = !p_vout->b_fullscreen;
 720
 721     if( p_vout->b_fullscreen )
 722     {
 723         msg_Dbg( p_vout, "Entering fullscreen mode" );
 724         XReparentWindow( p_vout->p_sys->p_display,
 725                          p_vout->p_sys->window,
 726                          DefaultRootWindow( p_vout->p_sys->p_display ),
 727                          0, 0 );
 728
 729         XEvent xev;
 730
 731         /* init X event structure for _NET_WM_FULLSCREEN client msg */
 732         xev.xclient.type = ClientMessage;
 733         xev.xclient.serial = 0;
 734         xev.xclient.send_event = True;
 735         xev.xclient.message_type = XInternAtom( p_vout->p_sys->p_display,
 736                                                 "_NET_WM_STATE", False );
 737         xev.xclient.window = p_vout->p_sys->window;
 738         xev.xclient.format = 32;
 739         if( p_vout->b_fullscreen )
 740             xev.xclient.data.l[0] = 1;
 741         else
 742             xev.xclient.data.l[0] = 0;
 743         xev.xclient.data.l[1] = XInternAtom( p_vout->p_sys->p_display,
 744                                             "_NET_WM_STATE_FULLSCREEN", False );
 745         xev.xclient.data.l[2] = 0;
 746         xev.xclient.data.l[3] = 0;
 747         xev.xclient.data.l[4] = 0;
 748
 749         XSendEvent( p_vout->p_sys->p_display,
 750                     DefaultRootWindow( p_vout->p_sys->p_display ), False,
 751                     SubstructureRedirectMask | SubstructureNotifyMask, &xev);
 752
 753         p_vout->p_sys->main_window.i_x = p_vout->p_sys->main_window.i_y = 0;
 754         p_vout->p_sys->main_window.i_width = p_vout->p_sys->fb_vinfo.xres;
 755         p_vout->p_sys->main_window.i_height = p_vout->p_sys->fb_vinfo.yres;
 756     }
 757     else
 758     {
 759         msg_Dbg( p_vout, "Leaving fullscreen mode" );
 760
 761         XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 762
 763         p_vout->p_sys->main_window = p_vout->p_sys->embedded_window;
 764         CreateWindow( p_vout->p_sys );
 765     }
 766
 767     XSync( p_vout->p_sys->p_display, False);
 768
 769     /* signal that the size needs to be updated */
 770     p_vout->i_changes |= VOUT_SIZE_CHANGE;
 771 }