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_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_FOURCC('I','4','2','0') &&
 189         p_vout->fmt_in.i_chroma != VLC_FOURCC('I','Y','U','V') &&
 190         p_vout->fmt_in.i_chroma != VLC_FOURCC('Y','V','1','2') )
 191         return VLC_EGENERIC;
 192
 193     /* Allocate instance and initialize some members */
 194     p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
 195     if( p_vout->p_sys == NULL )
 196         return VLC_ENOMEM;
 197     memset( p_sys, 0, sizeof(vout_sys_t) );
 198
 199     p_vout->pf_init = Init;
 200     p_vout->pf_end = End;
 201     p_vout->pf_manage = Manage;
 202     p_vout->pf_render = NULL;
 203     p_vout->pf_display = DisplayVideo;
 204     p_vout->pf_control = Control;
 205
 206     p_sys->b_embed = var_CreateGetInteger( p_vout, "omap-embedded" );
 207     p_sys->b_video_enabled = true;
 208
 209     if( OpenDisplay( p_vout ) )
 210     {
 211         free( p_vout->p_sys );
 212         return VLC_EGENERIC;
 213     }
 214
 215     if( InitWindow( p_vout ) )
 216     {
 217         free( p_vout->p_sys );
 218         return VLC_EGENERIC;
 219     }
 220
 221 #ifdef HAVE_OSSO
 222     p_vout->p_sys->i_backlight_on_counter = i_backlight_on_interval;
 223     p_vout->p_sys->p_octx = osso_initialize( "vlc", VERSION, 0, NULL );
 224     if ( p_vout->p_sys->p_octx == NULL ) {
 225         msg_Err( p_vout, "Could not get osso context" );
 226     } else {
 227         msg_Dbg( p_vout, "Initialized osso context" );
 228     }
 229 #endif
 230
 231     return VLC_SUCCESS;
 232 }
 233
 234 /*****************************************************************************
 235  * Destroy: destroy omapfb video thread output method
 236  *****************************************************************************
 237  * Terminate an output method created by Create
 238  *****************************************************************************/
 239 static void Destroy( vlc_object_t *p_this )
 240 {
 241     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 242
 243     CloseDisplay( p_vout );
 244
 245     if( p_vout->p_sys->b_embed )
 246     {
 247         vout_ReleaseWindow( p_vout->p_sys->owner_window );
 248         if( p_vout->b_fullscreen )
 249             XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 250         XCloseDisplay( p_vout->p_sys->p_display );
 251     }
 252
 253 #ifdef HAVE_OSSO
 254     if ( p_vout->p_sys->p_octx != NULL ) {
 255         msg_Dbg( p_vout, "Deinitializing osso context" );
 256         osso_deinitialize( p_vout->p_sys->p_octx );
 257     }
 258 #endif
 259
 260     /* Destroy structure */
 261     free( p_vout->p_sys );
 262 }
 263
 264
 265 /*****************************************************************************
 266  * Init: initialize omap framebuffer video thread output method
 267  *****************************************************************************/
 268 static int Init( vout_thread_t *p_vout )
 269 {
 270     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 271
 272     // We want to keep the same aspect
 273     p_vout->fmt_out.i_aspect = p_vout->output.i_aspect = p_vout->render.i_aspect;
 274     // We ask where the video should be displayed in the video area
 275     vout_PlacePicture( p_vout, p_sys->main_window.i_width,
 276                        p_sys->main_window.i_height,
 277                        &p_sys->output_window.i_x,
 278                        &p_sys->output_window.i_y,
 279                        &p_sys->output_window.i_width,
 280                        &p_sys->output_window.i_height );
 281     p_sys->output_window.i_x = ( p_sys->output_window.i_x +
 282                                  p_sys->main_window.i_x ) & ~1;
 283     p_sys->output_window.i_y = ( p_sys->output_window.i_y +
 284                                  p_sys->main_window.i_y ) & ~1;
 285
 286     // Hardware upscaling better than software
 287     if( p_vout->fmt_render.i_width <= p_sys->main_window.i_width &&
 288         p_vout->fmt_render.i_height <= p_sys->main_window.i_height )
 289     {
 290         p_sys->i_video_width =
 291         p_vout->output.i_width =
 292         p_vout->fmt_out.i_width =
 293         p_vout->fmt_out.i_visible_width = p_vout->fmt_render.i_width;
 294         p_sys->i_video_height =
 295         p_vout->output.i_height =
 296         p_vout->fmt_out.i_height =
 297         p_vout->fmt_out.i_visible_height = p_vout->fmt_render.i_height;
 298     }
 299     else
 300     {
 301         p_sys->i_video_width =
 302         p_vout->output.i_width =
 303         p_vout->fmt_out.i_width =
 304         p_vout->fmt_out.i_visible_width = p_sys->output_window.i_width;
 305         p_sys->i_video_height =
 306         p_vout->output.i_height =
 307         p_vout->fmt_out.i_height =
 308         p_vout->fmt_out.i_visible_height = p_sys->output_window.i_height;
 309     }
 310
 311     p_vout->output.i_chroma =
 312     p_vout->fmt_out.i_chroma = VLC_FOURCC( 'Y','4','2','0' );
 313     p_sys->i_color_format = OMAPFB_COLOR_YUV420;
 314
 315     // place in the framebuffer where we have to write
 316     p_sys->p_center = p_sys->p_video + p_sys->output_window.i_x*p_sys->i_bytes_per_pixel
 317                       + p_sys->output_window.i_y*p_sys->i_line_len;
 318
 319     // We get and set a direct render vlc picture
 320     I_OUTPUTPICTURES = 0;
 321     picture_t *p_pic = NULL;
 322     int i_index;
 323
 324     for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 325     {
 326         if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 327         {
 328             p_pic = p_vout->p_picture + i_index;
 329             break;
 330         }
 331     }
 332
 333     /* Allocate the picture */
 334     if( p_pic == NULL )
 335     {
 336         return VLC_EGENERIC;
 337     }
 338
 339     p_sys->p_output_picture = p_pic;
 340     p_pic->p->p_pixels = p_vout->p_sys->p_center;
 341     p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
 342     p_pic->p->i_lines = p_sys->i_video_height;
 343     p_pic->p->i_visible_lines = p_sys->i_video_height;
 344     p_pic->p->i_pitch = p_sys->i_line_len;
 345     p_pic->p->i_visible_pitch = p_sys->i_line_len;
 346     p_pic->i_planes = 1;
 347     p_pic->i_status = DESTROYED_PICTURE;
 348     p_pic->i_type   = DIRECT_PICTURE;
 349
 350     PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 351
 352     I_OUTPUTPICTURES++;
 353
 354     return VLC_SUCCESS;
 355 }
 356
 357 /*****************************************************************************
 358  * End: terminate omap framebuffer video thread output method
 359  *****************************************************************************/
 360 static void End( vout_thread_t *p_vout )
 361 {
 362     /* Clear the screen */
 363     UpdateScreen( p_vout, 0, 0,
 364                   p_vout->p_sys->fb_vinfo.xres,
 365                   p_vout->p_sys->fb_vinfo.yres,
 366                   p_vout->p_sys->fb_vinfo.xres,
 367                   p_vout->p_sys->fb_vinfo.yres,
 368                   OMAPFB_COLOR_RGB565 );
 369 }
 370
 371 /*****************************************************************************
 372  * Control: control facility for the vout
 373  *****************************************************************************/
 374 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 375 {
 376     switch( i_query )
 377     {
 378        case VOUT_REPARENT:
 379        case VOUT_CLOSE:
 380             vout_ReleaseWindow( p_vout->p_sys->owner_window );
 381             return VLC_SUCCESS;
 382        default:
 383             return vout_vaControlDefault( p_vout, i_query, args );
 384     }
 385 }
 386
 387 /*****************************************************************************
 388 * FreePicture: Destroy the picture and make it free again
 389 ******************************************************************************/
 390 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 391 {
 392     p_pic->p->p_pixels = NULL;
 393     p_pic->i_status = FREE_PICTURE;
 394 }
 395
 396 /*****************************************************************************
 397  * Manage: handle omapfb events
 398  *****************************************************************************
 399  * This function should be called regularly by video output thread.
 400  *****************************************************************************/
 401 static int Manage( vout_thread_t *p_vout )
 402 {
 403     XEvent xevent;
 404
 405     while( XPending( p_vout->p_sys->p_display ) )
 406     {
 407         XNextEvent( p_vout->p_sys->p_display, &xevent );
 408
 409         if( xevent.type == ButtonPress &&
 410             ((XButtonEvent *)&xevent)->button == Button1 )
 411         {
 412             /* detect double-clicks */
 413             if( ( ((XButtonEvent *)&xevent)->time -
 414                     p_vout->p_sys->i_time_button_last_pressed ) < 300 )
 415             {
 416                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 417             }
 418
 419             p_vout->p_sys->i_time_button_last_pressed =
 420                         ((XButtonEvent *)&xevent)->time;
 421         }
 422         else if( xevent.type == KeyPress )
 423         {
 424             KeySym x_key_symbol;
 425             vlc_value_t val;
 426
 427             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 428                                              xevent.xkey.keycode, 0 );
 429
 430             switch( x_key_symbol )
 431             {
 432             case XK_Return:
 433                 val.i_int = ACTIONID_PLAY_PAUSE; break;
 434             case XK_Escape:
 435                 val.i_int = ACTIONID_QUIT; break;
 436             case XK_Down:
 437                 val.i_int = ACTIONID_JUMP_BACKWARD_MEDIUM; break;
 438             case XK_Up:
 439                 val.i_int = ACTIONID_JUMP_FORWARD_MEDIUM; break;
 440             case XK_Right:
 441                 val.i_int = ACTIONID_JUMP_FORWARD_SHORT; break;
 442             case XK_Left:
 443                 val.i_int = ACTIONID_JUMP_BACKWARD_SHORT; break;
 444             case XK_F6:
 445                 val.i_int = ACTIONID_TOGGLE_FULLSCREEN; break;
 446             case XK_F7:
 447                 val.i_int = ACTIONID_VOL_UP; break;
 448             case XK_F8:
 449                 val.i_int = ACTIONID_VOL_DOWN; break;
 450             }
 451             var_SetInteger( p_vout->p_libvlc, "key-action", val.i_int );
 452         }
 453         else if( ( xevent.type == VisibilityNotify &&
 454                  xevent.xvisibility.state == VisibilityUnobscured ) ||
 455                  xevent.type == FocusIn )
 456         {
 457             p_vout->p_sys->b_video_enabled = true;
 458             p_vout->p_sys->p_output_picture->p->p_pixels =
 459                 p_vout->p_sys->p_center;
 460             XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 461                             RevertToParent, CurrentTime );
 462         }
 463         else if( ( xevent.type == VisibilityNotify &&
 464                  xevent.xvisibility.state != VisibilityUnobscured ) ||
 465                  xevent.type == FocusOut || xevent.type == UnmapNotify )
 466         {
 467             UpdateScreen( p_vout, 0, 0,
 468                           p_vout->p_sys->fb_vinfo.xres,
 469                           p_vout->p_sys->fb_vinfo.yres,
 470                           p_vout->p_sys->fb_vinfo.xres,
 471                           p_vout->p_sys->fb_vinfo.yres,
 472                           OMAPFB_COLOR_RGB565 );
 473             p_vout->p_sys->b_video_enabled = false;
 474             p_vout->p_sys->p_output_picture->p->p_pixels =
 475                 p_vout->p_sys->p_null;
 476          }
 477     }
 478
 479     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 480     {
 481         /* Update the object variable and trigger callback */
 482         var_SetBool( p_vout, "fullscreen", !p_vout->b_fullscreen );
 483
 484         if( p_vout->p_sys->b_embed )
 485             ToggleFullScreen( p_vout );
 486         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 487     }
 488
 489     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 490     {
 491         FreePicture( p_vout, p_vout->p_sys->p_output_picture );
 492         if( Init( p_vout ) )
 493         {
 494             msg_Err( p_vout, "cannot reinit framebuffer screen" );
 495             return VLC_EGENERIC;
 496         }
 497     }
 498
 499
 500 #ifdef HAVE_OSSO
 501     if ( p_vout->p_sys->p_octx != NULL ) {
 502         if ( p_vout->p_sys->i_backlight_on_counter == i_backlight_on_interval ) {
 503             if ( osso_display_blanking_pause( p_vout->p_sys->p_octx ) != OSSO_OK ) {
 504                 msg_Err( p_vout, "Could not disable backlight blanking" );
 505         } else {
 506                 msg_Dbg( p_vout, "Backlight blanking disabled" );
 507             }
 508             p_vout->p_sys->i_backlight_on_counter = 0;
 509         } else {
 510             p_vout->p_sys->i_backlight_on_counter ++;
 511         }
 512     }
 513 #endif
 514
 515     return VLC_SUCCESS;
 516 }
 517
 518 /*****************************************************************************
 519  * DisplayVideo: displays previously rendered output
 520  *****************************************************************************
 521  * This function update the screen resulting in the display of the last
 522  * rendered picture.
 523  *****************************************************************************/
 524 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
 525 {
 526     VLC_UNUSED( p_pic );
 527
 528     if( !p_vout->p_sys->b_video_enabled )
 529         return;
 530
 531     UpdateScreen( p_vout,
 532                   p_vout->p_sys->output_window.i_x,
 533                   p_vout->p_sys->output_window.i_y,
 534                   p_vout->p_sys->i_video_width,
 535                   p_vout->p_sys->i_video_height,
 536                   p_vout->p_sys->output_window.i_width,
 537                   p_vout->p_sys->output_window.i_height,
 538                   p_vout->p_sys->i_color_format );
 539
 540     // Wait for the window to be fully displayed
 541     ioctl( p_vout->p_sys->i_fd, OMAPFB_SYNC_GFX);
 542 }
 543
 544 /*****************************************************************************
 545  * OpenDisplay: initialize framebuffer
 546  *****************************************************************************/
 547 static int OpenDisplay( vout_thread_t *p_vout )
 548 {
 549     vout_sys_t *p_sys = (vout_sys_t *) p_vout->p_sys;
 550     char *psz_device;                             /* framebuffer device path */
 551
 552     /* Open framebuffer device */
 553     if( !(psz_device = config_GetPsz( p_vout, FB_DEV_VAR )) )
 554     {
 555         msg_Err( p_vout, "don't know which fb device to open" );
 556         return VLC_EGENERIC;
 557     }
 558
 559     p_sys->i_fd = open( psz_device, O_RDWR );
 560     if( p_sys->i_fd == -1 )
 561     {
 562         msg_Err( p_vout, "cannot open %s (%m)", psz_device );
 563         free( psz_device );
 564         return VLC_EGENERIC;
 565     }
 566     free( psz_device );
 567     psz_device = NULL;
 568
 569     // Get caps, try older interface if needed
 570     if( ioctl( p_sys->i_fd, OMAPFB_GET_CAPS, &p_sys->caps ) != 0 )
 571     {
 572         if( ioctl( p_sys->i_fd, OMAP_IOR( 42, unsigned long ), &p_sys->caps ) != 0 )
 573         {
 574             msg_Err( p_vout, "OMAPFB_GET_CAPS ioctl failed" );
 575             close( p_sys->i_fd );
 576             return VLC_EGENERIC;
 577         }
 578     }
 579
 580     if( ( p_sys->caps.ctrl & OMAPFB_CAPS_TEARSYNC ) != 0 )
 581         p_sys->b_tearsync = true;
 582
 583     if( ioctl( p_sys->i_fd, FBIOGET_VSCREENINFO, &p_sys->fb_vinfo ) )
 584     {
 585         msg_Err( p_vout, "Can't get VSCREENINFO: %s", strerror(errno) );
 586         return VLC_EGENERIC;
 587     }
 588     if( ioctl( p_sys->i_fd, FBIOGET_FSCREENINFO, &p_sys->fb_finfo ) )
 589     {
 590         msg_Err( p_vout, "Can't get FSCREENINFO: %s", strerror(errno) );
 591         return VLC_EGENERIC;
 592     }
 593
 594     p_sys->i_bytes_per_pixel = 2;
 595     p_sys->i_page_size = p_sys->fb_finfo.smem_len;
 596     p_sys->i_line_len = p_sys->fb_finfo.line_length;
 597
 598     if( (p_sys->p_video = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
 599                                             p_sys->i_fd, 0 )) == MAP_FAILED )
 600     {
 601         msg_Err( p_vout, "Can't mmap: %s\n", strerror(errno) );
 602         return VLC_EGENERIC;
 603     }
 604
 605     p_sys->p_display = XOpenDisplay( NULL );
 606
 607     /* Open /dev/null and map it */
 608     p_sys->i_null_fd = open( "/dev/zero", O_RDWR );
 609     if( p_sys->i_null_fd == -1 )
 610     {
 611         msg_Err( p_vout, "cannot open /dev/zero (%m)" );
 612         return VLC_EGENERIC;
 613     }
 614
 615     if( (p_sys->p_null = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE,
 616                                           MAP_PRIVATE, p_sys->i_null_fd, 0 )) == MAP_FAILED )
 617     {
 618         msg_Err( p_vout, "Can't mmap 2: %s\n", strerror(errno) );
 619         return VLC_EGENERIC;
 620     }
 621
 622     return VLC_SUCCESS;
 623 }
 624
 625 /*****************************************************************************
 626  * CloseDisplay: terminate FB video thread output method
 627  *****************************************************************************/
 628 static void CloseDisplay( vout_thread_t *p_vout )
 629 {
 630     munmap( p_vout->p_sys->p_video, p_vout->p_sys->i_page_size );
 631     munmap( p_vout->p_sys->p_null,  p_vout->p_sys->i_page_size );
 632
 633     close( p_vout->p_sys->i_fd );
 634     close( p_vout->p_sys->i_null_fd );
 635 }
 636
 637 /*****************************************************************************
 638  * UpdateScreen: update the screen of the omapfb
 639  *****************************************************************************/
 640 static void UpdateScreen( vout_thread_t *p_vout, int i_x, int i_y,
 641                           int i_width, int i_height,
 642                           int i_out_width, int i_out_height, int i_format )
 643 {
 644     struct omapfb_update_window update;
 645     update.x = i_x;
 646     update.y = i_y;
 647     update.width = i_width;
 648     update.height = i_height;
 649     update.out_x = i_x;
 650     update.out_y = i_y;
 651     update.out_width = i_out_width;
 652     update.out_height = i_out_height;
 653     update.format = i_format;
 654     if( p_vout->p_sys->b_tearsync )
 655         update.format |= OMAPFB_FORMAT_FLAG_TEARSYNC;
 656     ioctl( p_vout->p_sys->i_fd, OMAPFB_UPDATE_WINDOW, &update );
 657 }
 658
 659 /*****************************************************************************
 660  * InitWindow: get embedded window and init X11
 661  *****************************************************************************/
 662 static int InitWindow( vout_thread_t *p_vout )
 663 {
 664     vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
 665
 666     if( p_sys->b_embed )
 667     {
 668         p_sys->p_display = XOpenDisplay( NULL );
 669
 670         // Request window from interface
 671         p_sys->owner_window =
 672             vout_RequestWindow( p_vout,
 673                                 &p_sys->embedded_window.i_x,
 674                                 &p_sys->embedded_window.i_y,
 675                                 &p_sys->embedded_window.i_width,
 676                                 &p_sys->embedded_window.i_height );
 677         p_sys->main_window = p_sys->embedded_window;
 678
 679         // We have to create a new window to get some events
 680         // (ButtonPress for example)
 681         CreateWindow( p_sys );
 682     }
 683     else
 684     {
 685         // No embedding, fullscreen framebuffer overlay with no events handling
 686         p_sys->main_window.i_x = p_sys->main_window.i_y = 0;
 687         p_sys->main_window.i_width = p_sys->fb_vinfo.xres;
 688         p_sys->main_window.i_height = p_sys->fb_vinfo.yres;
 689         p_vout->b_fullscreen = true;
 690         var_SetBool( p_vout, "fullscreen", p_vout->b_fullscreen );
 691     }
 692
 693     return VLC_SUCCESS;
 694 }
 695
 696 static void CreateWindow( vout_sys_t *p_sys )
 697 {
 698     XSetWindowAttributes    xwindow_attributes;
 699     xwindow_attributes.backing_store = Always;
 700     xwindow_attributes.background_pixel =
 701         BlackPixel( p_sys->p_display, DefaultScreen(p_sys->p_display) );
 702     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 703     p_sys->window = XCreateWindow( p_sys->p_display,
 704                                    p_sys->owner_window->handle,
 705                                    0, 0,
 706                                    p_sys->main_window.i_width,
 707                                    p_sys->main_window.i_height,
 708                                    0,
 709                                    0, InputOutput, 0,
 710                                    CWBackingStore | CWBackPixel | CWEventMask,
 711                                    &xwindow_attributes );
 712
 713     XMapWindow( p_sys->p_display, p_sys->window );
 714     XSelectInput( p_sys->p_display, p_sys->window,
 715                   KeyPressMask | ButtonPressMask | StructureNotifyMask |
 716                   VisibilityChangeMask | FocusChangeMask );
 717     XSelectInput( p_sys->p_display, p_sys->owner_window->handle,
 718                   StructureNotifyMask );
 719     XSetInputFocus( p_sys->p_display, p_sys->window, RevertToParent, CurrentTime );
 720 }
 721
 722 static void ToggleFullScreen ( vout_thread_t * p_vout )
 723 {
 724     p_vout->b_fullscreen = !p_vout->b_fullscreen;
 725
 726     if( p_vout->b_fullscreen )
 727     {
 728         msg_Dbg( p_vout, "Entering fullscreen mode" );
 729         XReparentWindow( p_vout->p_sys->p_display,
 730                          p_vout->p_sys->window,
 731                          DefaultRootWindow( p_vout->p_sys->p_display ),
 732                          0, 0 );
 733
 734         XEvent xev;
 735
 736         /* init X event structure for _NET_WM_FULLSCREEN client msg */
 737         xev.xclient.type = ClientMessage;
 738         xev.xclient.serial = 0;
 739         xev.xclient.send_event = True;
 740         xev.xclient.message_type = XInternAtom( p_vout->p_sys->p_display,
 741                                                 "_NET_WM_STATE", False );
 742         xev.xclient.window = p_vout->p_sys->window;
 743         xev.xclient.format = 32;
 744         if( p_vout->b_fullscreen )
 745             xev.xclient.data.l[0] = 1;
 746         else
 747             xev.xclient.data.l[0] = 0;
 748         xev.xclient.data.l[1] = XInternAtom( p_vout->p_sys->p_display,
 749                                             "_NET_WM_STATE_FULLSCREEN", False );
 750         xev.xclient.data.l[2] = 0;
 751         xev.xclient.data.l[3] = 0;
 752         xev.xclient.data.l[4] = 0;
 753
 754         XSendEvent( p_vout->p_sys->p_display,
 755                     DefaultRootWindow( p_vout->p_sys->p_display ), False,
 756                     SubstructureRedirectMask | SubstructureNotifyMask, &xev);
 757
 758         p_vout->p_sys->main_window.i_x = p_vout->p_sys->main_window.i_y = 0;
 759         p_vout->p_sys->main_window.i_width = p_vout->p_sys->fb_vinfo.xres;
 760         p_vout->p_sys->main_window.i_height = p_vout->p_sys->fb_vinfo.yres;
 761     }
 762     else
 763     {
 764         msg_Dbg( p_vout, "Leaving fullscreen mode" );
 765
 766         XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 767
 768         p_vout->p_sys->main_window = p_vout->p_sys->embedded_window;
 769         CreateWindow( p_vout->p_sys );
 770     }
 771
 772     XSync( p_vout->p_sys->p_display, False);
 773
 774     /* signal that the size needs to be updated */
 775     p_vout->i_changes |= VOUT_SIZE_CHANGE;
 776 }