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

   1 /*****************************************************************************
   2 * omapfb.c : omap framebuffer plugin for vlc
   3 *****************************************************************************
   4 * Copyright (C) 2008-2009 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_window.h>
  54 #include <vlc_playlist.h>
  55
  56 /*****************************************************************************
  57 * Local prototypes
  58 *****************************************************************************/
  59 static int  Create           ( vlc_object_t * );
  60 static void Destroy          ( vlc_object_t * );
  61
  62 static int  Init             ( vout_thread_t * );
  63 static void End              ( vout_thread_t * );
  64 static int  Manage           ( vout_thread_t * );
  65 static void DisplayVideo     ( vout_thread_t *, picture_t * );
  66 static int  Control          ( vout_thread_t *, int, va_list );
  67
  68 static void FreePicture      ( vout_thread_t *, picture_t * );
  69
  70 static int  OpenDisplay      ( vout_thread_t * );
  71 static void CloseDisplay     ( vout_thread_t * );
  72 static void UpdateScreen     ( vout_thread_t *,
  73                                int, int, int, int, int, int, int );
  74
  75 static int  InitWindow       ( vout_thread_t * );
  76 static void CreateWindow     ( vout_sys_t * );
  77 static void ToggleFullScreen ( vout_thread_t * );
  78
  79 #ifdef HAVE_OSSO
  80 static const int i_backlight_on_interval = 300;
  81 #endif
  82
  83 /*****************************************************************************
  84  * Module descriptor
  85  *****************************************************************************/
  86 #define FB_DEV_VAR "omapfbdev"
  87
  88 #define DEVICE_TEXT N_("OMAP Framebuffer device")
  89 #define DEVICE_LONGTEXT N_( \
  90     "OMAP Framebuffer device to use for rendering (usually /dev/fb0).")
  91
  92 #define CHROMA_TEXT N_("Chroma used.")
  93 #define CHROMA_LONGTEXT N_( \
  94     "Force use of a specific chroma for output. Default is Y420 (specific to N770/N8xx hardware)." )
  95
  96 #define OVERLAY_TEXT N_("Embed the overlay")
  97 #define OVERLAY_LONGTEXT N_( \
  98     "Embed the framebuffer overlay into a X11 window" )
  99
 100 vlc_module_begin();
 101     set_shortname( "OMAP framebuffer" );
 102     set_category( CAT_VIDEO );
 103     set_subcategory( SUBCAT_VIDEO_VOUT );
 104     add_file( FB_DEV_VAR, "/dev/fb0", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 105               false )
 106     add_string( "omap-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
 107                 true )
 108     add_bool( "omap-embedded", true, NULL, OVERLAY_TEXT, OVERLAY_LONGTEXT,
 109                  true )
 110     set_description( N_("OMAP framebuffer video output") );
 111     set_capability( "video output", 200 );
 112     set_callbacks( Create, Destroy );
 113 vlc_module_end();
 114
 115 /*****************************************************************************
 116  * omap_window_t: simple structure with the geometry of a window
 117  *****************************************************************************/
 118 struct omap_window_t
 119 {
 120     uint32_t i_x;
 121     uint32_t i_y;
 122     uint32_t i_width;
 123     uint32_t i_height;
 124 };
 125
 126 /*****************************************************************************
 127 * vout_sys_t: video output omap framebuffer method descriptor
 128  *****************************************************************************
 129  * This structure is part of the video output thread descriptor.
 130  * It describes the FB specific properties of an output thread.
 131  *****************************************************************************/
 132 struct vout_sys_t
 133 {
 134     /* Framebuffer information */
 135     int                         i_fd;                       /* device handle */
 136     struct fb_var_screeninfo    fb_vinfo;        /* current mode information */
 137     struct fb_fix_screeninfo    fb_finfo;
 138     struct omapfb_caps          caps;
 139     bool                        b_tearsync;
 140
 141     /* Window information */
 142     struct omap_window_t output_window;    /* Size of the real output window */
 143     struct omap_window_t main_window;  /* Size of the area we got to display */
 144     struct omap_window_t embedded_window;     /* Size of the embedded window */
 145
 146     /* Video information */
 147     uint32_t             i_video_width;                       /* video width */
 148     uint32_t             i_video_height;                     /* video height */
 149     vlc_fourcc_t         i_chroma;
 150     int                  i_color_format;                   /* OMAPFB_COLOR_* */
 151     bool                 b_embed;
 152     bool                 b_video_enabled;        /* Video must be displayed? */
 153     picture_t           *p_output_picture;
 154
 155     /* Video memory */
 156     uint8_t    *p_video;                                      /* base adress */
 157     uint8_t    *p_center;                                   /* output adress */
 158     size_t      i_page_size;                                    /* page size */
 159     int         i_bytes_per_pixel;                /* Bytes used by one pixel */
 160     int         i_line_len;                   /* Length of one line in bytes */
 161
 162     /* X11 */
 163     Display   *p_display;
 164     vout_window_t *owner_window;
 165     Window     window;
 166     mtime_t    i_time_button_last_pressed;         /* To detect double click */
 167
 168     /* Dummy memory */
 169     int        i_null_fd;
 170     uint8_t   *p_null;
 171
 172 #ifdef HAVE_OSSO
 173     osso_context_t      *p_octx;
 174     int                 i_backlight_on_counter;
 175 #endif
 176 };
 177
 178 /*****************************************************************************
 179  * Create: allocates omapfb video thread output method
 180  *****************************************************************************
 181  * This function allocates and initializes a FB vout method.
 182  *****************************************************************************/
 183 static int Create( vlc_object_t *p_this )
 184 {
 185     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 186     vout_sys_t    *p_sys;
 187
 188     if( p_vout->fmt_in.i_chroma != VLC_CODEC_I420 &&
 189         p_vout->fmt_in.i_chroma != VLC_CODEC_YV12 )
 190         return VLC_EGENERIC;
 191
 192     /* Allocate instance and initialize some members */
 193     p_vout->p_sys = p_sys = calloc( 1, sizeof( vout_sys_t ) );
 194     if( p_vout->p_sys == NULL )
 195         return VLC_ENOMEM;
 196
 197     p_vout->pf_init = Init;
 198     p_vout->pf_end = End;
 199     p_vout->pf_manage = Manage;
 200     p_vout->pf_render = NULL;
 201     p_vout->pf_display = DisplayVideo;
 202     p_vout->pf_control = Control;
 203
 204     p_sys->b_embed = var_CreateGetInteger( p_vout, "omap-embedded" );
 205     p_sys->b_video_enabled = true;
 206
 207     if( OpenDisplay( p_vout ) )
 208     {
 209         free( p_vout->p_sys );
 210         return VLC_EGENERIC;
 211     }
 212
 213     if( InitWindow( p_vout ) )
 214     {
 215         free( p_vout->p_sys );
 216         return VLC_EGENERIC;
 217     }
 218
 219 #ifdef HAVE_OSSO
 220     p_vout->p_sys->i_backlight_on_counter = i_backlight_on_interval;
 221     p_vout->p_sys->p_octx = osso_initialize( "vlc", VERSION, 0, NULL );
 222     if ( p_vout->p_sys->p_octx == NULL ) {
 223         msg_Err( p_vout, "Could not get osso context" );
 224     } else {
 225         msg_Dbg( p_vout, "Initialized osso context" );
 226     }
 227 #endif
 228
 229     return VLC_SUCCESS;
 230 }
 231
 232 /*****************************************************************************
 233  * Destroy: destroy omapfb video thread output method
 234  *****************************************************************************
 235  * Terminate an output method created by Create
 236  *****************************************************************************/
 237 static void Destroy( vlc_object_t *p_this )
 238 {
 239     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 240
 241     CloseDisplay( p_vout );
 242
 243     if( p_vout->p_sys->b_embed )
 244     {
 245         vout_ReleaseWindow( p_vout->p_sys->owner_window );
 246         if( p_vout->b_fullscreen )
 247             XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 248         XCloseDisplay( p_vout->p_sys->p_display );
 249     }
 250
 251 #ifdef HAVE_OSSO
 252     if ( p_vout->p_sys->p_octx != NULL ) {
 253         msg_Dbg( p_vout, "Deinitializing osso context" );
 254         osso_deinitialize( p_vout->p_sys->p_octx );
 255     }
 256 #endif
 257
 258     /* Destroy structure */
 259     free( p_vout->p_sys );
 260 }
 261
 262
 263 /*****************************************************************************
 264  * Init: initialize omap framebuffer video thread output method
 265  *****************************************************************************/
 266 static int Init( vout_thread_t *p_vout )
 267 {
 268     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 269
 270     // We want to keep the same aspect
 271     p_vout->fmt_out.i_aspect = p_vout->output.i_aspect = p_vout->render.i_aspect;
 272     // We ask where the video should be displayed in the video area
 273     vout_PlacePicture( p_vout, p_sys->main_window.i_width,
 274                        p_sys->main_window.i_height,
 275                        &p_sys->output_window.i_x,
 276                        &p_sys->output_window.i_y,
 277                        &p_sys->output_window.i_width,
 278                        &p_sys->output_window.i_height );
 279     p_sys->output_window.i_x = ( p_sys->output_window.i_x +
 280                                  p_sys->main_window.i_x ) & ~1;
 281     p_sys->output_window.i_y = ( p_sys->output_window.i_y +
 282                                  p_sys->main_window.i_y ) & ~1;
 283
 284     // Hardware upscaling better than software
 285     if( p_vout->fmt_render.i_width <= p_sys->main_window.i_width &&
 286         p_vout->fmt_render.i_height <= p_sys->main_window.i_height )
 287     {
 288         p_sys->i_video_width =
 289         p_vout->output.i_width =
 290         p_vout->fmt_out.i_width =
 291         p_vout->fmt_out.i_visible_width = p_vout->fmt_render.i_width;
 292         p_sys->i_video_height =
 293         p_vout->output.i_height =
 294         p_vout->fmt_out.i_height =
 295         p_vout->fmt_out.i_visible_height = p_vout->fmt_render.i_height;
 296     }
 297     else
 298     {
 299         p_sys->i_video_width =
 300         p_vout->output.i_width =
 301         p_vout->fmt_out.i_width =
 302         p_vout->fmt_out.i_visible_width = p_sys->output_window.i_width;
 303         p_sys->i_video_height =
 304         p_vout->output.i_height =
 305         p_vout->fmt_out.i_height =
 306         p_vout->fmt_out.i_visible_height = p_sys->output_window.i_height;
 307     }
 308
 309     p_vout->output.i_chroma =
 310     p_vout->fmt_out.i_chroma = VLC_CODEC_I420;
 311     p_sys->i_color_format = OMAPFB_COLOR_YUV420;
 312
 313     // place in the framebuffer where we have to write
 314     p_sys->p_center = p_sys->p_video + p_sys->output_window.i_x*p_sys->i_bytes_per_pixel
 315                       + p_sys->output_window.i_y*p_sys->i_line_len;
 316
 317     // We get and set a direct render vlc picture
 318     I_OUTPUTPICTURES = 0;
 319     picture_t *p_pic = NULL;
 320     int i_index;
 321
 322     for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 323     {
 324         if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 325         {
 326             p_pic = p_vout->p_picture + i_index;
 327             break;
 328         }
 329     }
 330
 331     /* Allocate the picture */
 332     if( p_pic == NULL )
 333     {
 334         return VLC_EGENERIC;
 335     }
 336
 337     p_sys->p_output_picture = p_pic;
 338     p_pic->p->p_pixels = p_vout->p_sys->p_center;
 339     p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
 340     p_pic->p->i_lines = p_sys->i_video_height;
 341     p_pic->p->i_visible_lines = p_sys->i_video_height;
 342     p_pic->p->i_pitch = p_sys->i_line_len;
 343     p_pic->p->i_visible_pitch = p_sys->i_line_len;
 344     p_pic->i_planes = 1;
 345     p_pic->i_status = DESTROYED_PICTURE;
 346     p_pic->i_type   = DIRECT_PICTURE;
 347
 348     PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 349
 350     I_OUTPUTPICTURES++;
 351
 352     return VLC_SUCCESS;
 353 }
 354
 355 /*****************************************************************************
 356  * End: terminate omap framebuffer video thread output method
 357  *****************************************************************************/
 358 static void End( vout_thread_t *p_vout )
 359 {
 360     /* Clear the screen */
 361     UpdateScreen( p_vout, 0, 0,
 362                   p_vout->p_sys->fb_vinfo.xres,
 363                   p_vout->p_sys->fb_vinfo.yres,
 364                   p_vout->p_sys->fb_vinfo.xres,
 365                   p_vout->p_sys->fb_vinfo.yres,
 366                   OMAPFB_COLOR_RGB565 );
 367 }
 368
 369 /*****************************************************************************
 370  * Control: control facility for the vout
 371  *****************************************************************************/
 372 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 373 {
 374     return VLC_EGENERIC;
 375 }
 376
 377 /*****************************************************************************
 378 * FreePicture: Destroy the picture and make it free again
 379 ******************************************************************************/
 380 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 381 {
 382     p_pic->p->p_pixels = NULL;
 383     p_pic->i_status = FREE_PICTURE;
 384 }
 385
 386 /*****************************************************************************
 387  * Manage: handle omapfb events
 388  *****************************************************************************
 389  * This function should be called regularly by video output thread.
 390  *****************************************************************************/
 391 static int Manage( vout_thread_t *p_vout )
 392 {
 393     XEvent xevent;
 394
 395     while( XPending( p_vout->p_sys->p_display ) )
 396     {
 397         XNextEvent( p_vout->p_sys->p_display, &xevent );
 398
 399         if( xevent.type == ButtonPress &&
 400             ((XButtonEvent *)&xevent)->button == Button1 )
 401         {
 402             /* detect double-clicks */
 403             if( ( ((XButtonEvent *)&xevent)->time -
 404                     p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 405             {
 406                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 407             }
 408
 409             p_vout->p_sys->i_time_button_last_pressed =
 410                         ((XButtonEvent *)&xevent)->time;
 411         }
 412         else if( xevent.type == KeyPress )
 413         {
 414             KeySym x_key_symbol;
 415             vlc_value_t val;
 416
 417             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 418                                              xevent.xkey.keycode, 0 );
 419
 420             switch( x_key_symbol )
 421             {
 422             case XK_Return:
 423                 val.i_int = ACTIONID_PLAY_PAUSE; break;
 424             case XK_Escape:
 425                 val.i_int = ACTIONID_QUIT; break;
 426             case XK_Down:
 427                 val.i_int = ACTIONID_JUMP_BACKWARD_MEDIUM; break;
 428             case XK_Up:
 429                 val.i_int = ACTIONID_JUMP_FORWARD_MEDIUM; break;
 430             case XK_Right:
 431                 val.i_int = ACTIONID_JUMP_FORWARD_SHORT; break;
 432             case XK_Left:
 433                 val.i_int = ACTIONID_JUMP_BACKWARD_SHORT; break;
 434             case XK_F6:
 435                 val.i_int = ACTIONID_TOGGLE_FULLSCREEN; break;
 436             case XK_F7:
 437                 val.i_int = ACTIONID_VOL_UP; break;
 438             case XK_F8:
 439                 val.i_int = ACTIONID_VOL_DOWN; break;
 440             }
 441             var_SetInteger( p_vout->p_libvlc, "key-action", val.i_int );
 442         }
 443         else if( ( xevent.type == VisibilityNotify &&
 444                  xevent.xvisibility.state == VisibilityUnobscured ) ||
 445                  xevent.type == FocusIn )
 446         {
 447             p_vout->p_sys->b_video_enabled = true;
 448             p_vout->p_sys->p_output_picture->p->p_pixels =
 449                 p_vout->p_sys->p_center;
 450             XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 451                             RevertToParent, CurrentTime );
 452         }
 453         else if( ( xevent.type == VisibilityNotify &&
 454                  xevent.xvisibility.state != VisibilityUnobscured ) ||
 455                  xevent.type == FocusOut || xevent.type == UnmapNotify )
 456         {
 457             UpdateScreen( p_vout, 0, 0,
 458                           p_vout->p_sys->fb_vinfo.xres,
 459                           p_vout->p_sys->fb_vinfo.yres,
 460                           p_vout->p_sys->fb_vinfo.xres,
 461                           p_vout->p_sys->fb_vinfo.yres,
 462                           OMAPFB_COLOR_RGB565 );
 463             p_vout->p_sys->b_video_enabled = false;
 464             p_vout->p_sys->p_output_picture->p->p_pixels =
 465                 p_vout->p_sys->p_null;
 466          }
 467     }
 468
 469     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 470     {
 471         /* Update the object variable and trigger callback */
 472         var_SetBool( p_vout, "fullscreen", !p_vout->b_fullscreen );
 473
 474         if( p_vout->p_sys->b_embed )
 475             ToggleFullScreen( p_vout );
 476         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 477     }
 478
 479     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 480     {
 481         FreePicture( p_vout, p_vout->p_sys->p_output_picture );
 482         if( Init( p_vout ) )
 483         {
 484             msg_Err( p_vout, "cannot reinit framebuffer screen" );
 485             return VLC_EGENERIC;
 486         }
 487     }
 488
 489
 490 #ifdef HAVE_OSSO
 491     if ( p_vout->p_sys->p_octx != NULL ) {
 492         if ( p_vout->p_sys->i_backlight_on_counter == i_backlight_on_interval ) {
 493             if ( osso_display_blanking_pause( p_vout->p_sys->p_octx ) != OSSO_OK ) {
 494                 msg_Err( p_vout, "Could not disable backlight blanking" );
 495         } else {
 496                 msg_Dbg( p_vout, "Backlight blanking disabled" );
 497             }
 498             p_vout->p_sys->i_backlight_on_counter = 0;
 499         } else {
 500             p_vout->p_sys->i_backlight_on_counter ++;
 501         }
 502     }
 503 #endif
 504
 505     return VLC_SUCCESS;
 506 }
 507
 508 /*****************************************************************************
 509  * DisplayVideo: displays previously rendered output
 510  *****************************************************************************
 511  * This function update the screen resulting in the display of the last
 512  * rendered picture.
 513  *****************************************************************************/
 514 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 515 {
 516     VLC_UNUSED( p_pic );
 517
 518     if( !p_vout->p_sys->b_video_enabled )
 519         return;
 520
 521     UpdateScreen( p_vout,
 522                   p_vout->p_sys->output_window.i_x,
 523                   p_vout->p_sys->output_window.i_y,
 524                   p_vout->p_sys->i_video_width,
 525                   p_vout->p_sys->i_video_height,
 526                   p_vout->p_sys->output_window.i_width,
 527                   p_vout->p_sys->output_window.i_height,
 528                   p_vout->p_sys->i_color_format );
 529
 530     // Wait for the window to be fully displayed
 531     ioctl( p_vout->p_sys->i_fd, OMAPFB_SYNC_GFX);
 532 }
 533
 534 /*****************************************************************************
 535  * OpenDisplay: initialize framebuffer
 536  *****************************************************************************/
 537 static int OpenDisplay( vout_thread_t *p_vout )
 538 {
 539     vout_sys_t *p_sys = (vout_sys_t *) p_vout->p_sys;
 540     char *psz_device;                             /* framebuffer device path */
 541
 542     /* Open framebuffer device */
 543     if( !(psz_device = config_GetPsz( p_vout, FB_DEV_VAR )) )
 544     {
 545         msg_Err( p_vout, "don't know which fb device to open" );
 546         return VLC_EGENERIC;
 547     }
 548
 549     p_sys->i_fd = open( psz_device, O_RDWR );
 550     if( p_sys->i_fd == -1 )
 551     {
 552         msg_Err( p_vout, "cannot open %s (%m)", psz_device );
 553         free( psz_device );
 554         return VLC_EGENERIC;
 555     }
 556     free( psz_device );
 557
 558     // Get caps, try older interface if needed
 559     if( ioctl( p_sys->i_fd, OMAPFB_GET_CAPS, &p_sys->caps ) != 0 )
 560     {
 561         if( ioctl( p_sys->i_fd, OMAP_IOR( 42, unsigned long ), &p_sys->caps ) != 0 )
 562         {
 563             msg_Err( p_vout, "OMAPFB_GET_CAPS ioctl failed" );
 564             close( p_sys->i_fd );
 565             return VLC_EGENERIC;
 566         }
 567     }
 568
 569     if( ( p_sys->caps.ctrl & OMAPFB_CAPS_TEARSYNC ) != 0 )
 570         p_sys->b_tearsync = true;
 571
 572     if( ioctl( p_sys->i_fd, FBIOGET_VSCREENINFO, &p_sys->fb_vinfo ) )
 573     {
 574         msg_Err( p_vout, "Can't get VSCREENINFO: %s", strerror(errno) );
 575         close( p_sys->i_fd );
 576         return VLC_EGENERIC;
 577     }
 578     if( ioctl( p_sys->i_fd, FBIOGET_FSCREENINFO, &p_sys->fb_finfo ) )
 579     {
 580         msg_Err( p_vout, "Can't get FSCREENINFO: %s", strerror(errno) );
 581         close( p_sys->i_fd );
 582         return VLC_EGENERIC;
 583     }
 584
 585     p_sys->i_bytes_per_pixel = 2;
 586     p_sys->i_page_size = p_sys->fb_finfo.smem_len;
 587     p_sys->i_line_len = p_sys->fb_finfo.line_length;
 588
 589     if( (p_sys->p_video = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
 590                                             p_sys->i_fd, 0 )) == MAP_FAILED )
 591     {
 592         msg_Err( p_vout, "Can't mmap: %s", strerror(errno) );
 593         close( p_sys->i_fd );
 594         return VLC_EGENERIC;
 595     }
 596
 597     p_sys->p_display = XOpenDisplay( NULL );
 598
 599     /* Open /dev/null and map it */
 600     p_sys->i_null_fd = open( "/dev/zero", O_RDWR );
 601     if( p_sys->i_null_fd == -1 )
 602     {
 603         msg_Err( p_vout, "cannot open /dev/zero (%m)" );
 604         munmap( p_sys->p_video, p_sys->i_page_size );
 605         close( p_sys->i_fd );
 606         return VLC_EGENERIC;
 607     }
 608
 609     if( (p_sys->p_null = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE,
 610                                           MAP_PRIVATE, p_sys->i_null_fd, 0 )) == MAP_FAILED )
 611     {
 612         msg_Err( p_vout, "Can't mmap 2: %s", strerror(errno) );
 613         munmap( p_sys->p_video, p_sys->i_page_size );
 614         close( p_sys->i_null_fd );
 615         close( p_sys->i_fd );
 616         return VLC_EGENERIC;
 617     }
 618
 619     return VLC_SUCCESS;
 620 }
 621
 622 /*****************************************************************************
 623  * CloseDisplay: terminate FB video thread output method
 624  *****************************************************************************/
 625 static void CloseDisplay( vout_thread_t *p_vout )
 626 {
 627     munmap( p_vout->p_sys->p_video, p_vout->p_sys->i_page_size );
 628     munmap( p_vout->p_sys->p_null,  p_vout->p_sys->i_page_size );
 629
 630     close( p_vout->p_sys->i_fd );
 631     close( p_vout->p_sys->i_null_fd );
 632 }
 633
 634 /*****************************************************************************
 635  * UpdateScreen: update the screen of the omapfb
 636  *****************************************************************************/
 637 static void UpdateScreen( vout_thread_t *p_vout, int i_x, int i_y,
 638                           int i_width, int i_height,
 639                           int i_out_width, int i_out_height, int i_format )
 640 {
 641     struct omapfb_update_window update;
 642     update.x = i_x;
 643     update.y = i_y;
 644     update.width = i_width;
 645     update.height = i_height;
 646     update.out_x = i_x;
 647     update.out_y = i_y;
 648     update.out_width = i_out_width;
 649     update.out_height = i_out_height;
 650     update.format = i_format;
 651     if( p_vout->p_sys->b_tearsync )
 652         update.format |= OMAPFB_FORMAT_FLAG_TEARSYNC;
 653     ioctl( p_vout->p_sys->i_fd, OMAPFB_UPDATE_WINDOW, &update );
 654 }
 655
 656 /*****************************************************************************
 657  * InitWindow: get embedded window and init X11
 658  *****************************************************************************/
 659 static int InitWindow( vout_thread_t *p_vout )
 660 {
 661     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 662
 663     if( p_sys->b_embed )
 664     {
 665         p_sys->p_display = XOpenDisplay( NULL );
 666
 667         // Request window from interface
 668         p_sys->owner_window =
 669             vout_RequestXWindow( p_vout,
 670                                 &p_sys->embedded_window.i_x,
 671                                 &p_sys->embedded_window.i_y,
 672                                 &p_sys->embedded_window.i_width,
 673                                 &p_sys->embedded_window.i_height );
 674         p_sys->main_window = p_sys->embedded_window;
 675
 676         // We have to create a new window to get some events
 677         // (ButtonPress for example)
 678         CreateWindow( p_sys );
 679     }
 680     else
 681     {
 682         // No embedding, fullscreen framebuffer overlay with no events handling
 683         p_sys->main_window.i_x = p_sys->main_window.i_y = 0;
 684         p_sys->main_window.i_width = p_sys->fb_vinfo.xres;
 685         p_sys->main_window.i_height = p_sys->fb_vinfo.yres;
 686         p_vout->b_fullscreen = true;
 687         var_SetBool( p_vout, "fullscreen", p_vout->b_fullscreen );
 688     }
 689
 690     return VLC_SUCCESS;
 691 }
 692
 693 static void CreateWindow( vout_sys_t *p_sys )
 694 {
 695     XSetWindowAttributes    xwindow_attributes;
 696     xwindow_attributes.backing_store = Always;
 697     xwindow_attributes.background_pixel =
 698         BlackPixel( p_sys->p_display, DefaultScreen(p_sys->p_display) );
 699     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 700     p_sys->window = XCreateWindow( p_sys->p_display,
 701                                    p_sys->owner_window->handle.xid,
 702                                    0, 0,
 703                                    p_sys->main_window.i_width,
 704                                    p_sys->main_window.i_height,
 705                                    0,
 706                                    0, InputOutput, 0,
 707                                    CWBackingStore | CWBackPixel | CWEventMask,
 708                                    &xwindow_attributes );
 709
 710     XMapWindow( p_sys->p_display, p_sys->window );
 711     XSelectInput( p_sys->p_display, p_sys->window,
 712                   KeyPressMask | ButtonPressMask | StructureNotifyMask |
 713                   VisibilityChangeMask | FocusChangeMask );
 714     XSelectInput( p_sys->p_display, p_sys->owner_window->handle.xid,
 715                   StructureNotifyMask );
 716     XSetInputFocus( p_sys->p_display, p_sys->window, RevertToParent, CurrentTime );
 717 }
 718
 719 static void ToggleFullScreen ( vout_thread_t * p_vout )
 720 {
 721     p_vout->b_fullscreen = !p_vout->b_fullscreen;
 722
 723     if( p_vout->b_fullscreen )
 724     {
 725         msg_Dbg( p_vout, "Entering fullscreen mode" );
 726         XReparentWindow( p_vout->p_sys->p_display,
 727                          p_vout->p_sys->window,
 728                          DefaultRootWindow( p_vout->p_sys->p_display ),
 729                          0, 0 );
 730
 731         XEvent xev;
 732
 733         /* init X event structure for _NET_WM_FULLSCREEN client msg */
 734         xev.xclient.type = ClientMessage;
 735         xev.xclient.serial = 0;
 736         xev.xclient.send_event = True;
 737         xev.xclient.message_type = XInternAtom( p_vout->p_sys->p_display,
 738                                                 "_NET_WM_STATE", False );
 739         xev.xclient.window = p_vout->p_sys->window;
 740         xev.xclient.format = 32;
 741         if( p_vout->b_fullscreen )
 742             xev.xclient.data.l[0] = 1;
 743         else
 744             xev.xclient.data.l[0] = 0;
 745         xev.xclient.data.l[1] = XInternAtom( p_vout->p_sys->p_display,
 746                                             "_NET_WM_STATE_FULLSCREEN", False );
 747         xev.xclient.data.l[2] = 0;
 748         xev.xclient.data.l[3] = 0;
 749         xev.xclient.data.l[4] = 0;
 750
 751         XSendEvent( p_vout->p_sys->p_display,
 752                     DefaultRootWindow( p_vout->p_sys->p_display ), False,
 753                     SubstructureRedirectMask | SubstructureNotifyMask, &xev);
 754
 755         p_vout->p_sys->main_window.i_x = p_vout->p_sys->main_window.i_y = 0;
 756         p_vout->p_sys->main_window.i_width = p_vout->p_sys->fb_vinfo.xres;
 757         p_vout->p_sys->main_window.i_height = p_vout->p_sys->fb_vinfo.yres;
 758     }
 759     else
 760     {
 761         msg_Dbg( p_vout, "Leaving fullscreen mode" );
 762
 763         XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 764
 765         p_vout->p_sys->main_window = p_vout->p_sys->embedded_window;
 766         CreateWindow( p_vout->p_sys );
 767     }
 768
 769     XSync( p_vout->p_sys->p_display, False);
 770
 771     /* signal that the size needs to be updated */
 772     p_vout->i_changes |= VOUT_SIZE_CHANGE;
 773 }