git.sesse.net Git - vlc/blob - plugins/fb/vout_fb.c

   1 /*****************************************************************************
   2  * vout_fb.c: framebuffer video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998, 1999, 2000, 2001 VideoLAN
   5  * $Id: vout_fb.c,v 1.13 2001/05/30 17:03:12 sam Exp $
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #define MODULE_NAME fb
  25 #include "modules_inner.h"
  26
  27 /*****************************************************************************
  28  * Preamble
  29  *****************************************************************************/
  30 #include "defs.h"
  31
  32 #include <errno.h>                                                 /* ENOMEM */
  33 #include <signal.h>                                      /* SIGUSR1, SIGUSR2 */
  34 #include <stdlib.h>                                                /* free() */
  35 #include <string.h>                                            /* strerror() */
  36 #include <fcntl.h>                                                 /* open() */
  37 #include <unistd.h>                                               /* close() */
  38
  39 #include <termios.h>                                       /* struct termios */
  40 #include <sys/ioctl.h>
  41 #include <sys/mman.h>                                              /* mmap() */
  42
  43 #include <linux/fb.h>
  44 #include <linux/vt.h>                                                /* VT_* */
  45 #include <linux/kd.h>                                                 /* KD* */
  46
  47 #include "config.h"
  48 #include "common.h"
  49 #include "threads.h"
  50 #include "mtime.h"
  51 #include "tests.h"
  52 #include "modules.h"
  53
  54 #include "video.h"
  55 #include "video_output.h"
  56
  57 #include "intf_msg.h"
  58 #include "main.h"
  59
  60 #include "modules_export.h"
  61
  62 /*****************************************************************************
  63  * vout_sys_t: video output framebuffer method descriptor
  64  *****************************************************************************
  65  * This structure is part of the video output thread descriptor.
  66  * It describes the FB specific properties of an output thread.
  67  *****************************************************************************/
  68 typedef struct vout_sys_s
  69 {
  70     /* System informations */
  71     int                 i_tty_dev;                      /* tty device handle */
  72     struct termios      old_termios;
  73
  74     /* Original configuration informations */
  75     struct sigaction            sig_usr1;           /* USR1 previous handler */
  76     struct sigaction            sig_usr2;           /* USR2 previous handler */
  77     struct vt_mode              vt_mode;                 /* previous VT mode */
  78
  79     /* Framebuffer information */
  80     int                         i_fb_dev;                   /* device handle */
  81     struct fb_var_screeninfo    old_info;      /* original mode informations */
  82     struct fb_var_screeninfo    var_info;       /* current mode informations */
  83     boolean_t                   b_pan;     /* does device supports panning ? */
  84     struct fb_cmap              fb_cmap;                /* original colormap */
  85     u16                         *fb_palette;             /* original palette */
  86
  87     /* Video memory */
  88     byte_t *                    p_video;                      /* base adress */
  89     size_t                      i_page_size;                    /* page size */
  90
  91 } vout_sys_t;
  92
  93 /*****************************************************************************
  94  * Local prototypes.
  95  *****************************************************************************/
  96 static int  vout_Probe     ( probedata_t *p_data );
  97 static int  vout_Create    ( struct vout_thread_s * );
  98 static int  vout_Init      ( struct vout_thread_s * );
  99 static void vout_End       ( struct vout_thread_s * );
 100 static void vout_Destroy   ( struct vout_thread_s * );
 101 static int  vout_Manage    ( struct vout_thread_s * );
 102 static void vout_Display   ( struct vout_thread_s * );
 103 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 104                              u16 *blue, u16 *transp );
 105
 106 static int  FBOpenDisplay  ( struct vout_thread_s * );
 107 static void FBCloseDisplay ( struct vout_thread_s * );
 108 static void FBSwitchDisplay( int i_signal );
 109 static void FBTextMode     ( int i_tty_dev );
 110 static void FBGfxMode      ( int i_tty_dev );
 111
 112 /*****************************************************************************
 113  * Functions exported as capabilities. They are declared as static so that
 114  * we don't pollute the namespace too much.
 115  *****************************************************************************/
 116 void _M( vout_getfunctions )( function_list_t * p_function_list )
 117 {
 118     p_function_list->pf_probe = vout_Probe;
 119     p_function_list->functions.vout.pf_create     = vout_Create;
 120     p_function_list->functions.vout.pf_init       = vout_Init;
 121     p_function_list->functions.vout.pf_end        = vout_End;
 122     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 123     p_function_list->functions.vout.pf_manage     = vout_Manage;
 124     p_function_list->functions.vout.pf_display    = vout_Display;
 125     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 126 }
 127
 128 /*****************************************************************************
 129  * vout_Probe: probe the video driver and return a score
 130  *****************************************************************************
 131  * This function tries to open the framebuffer and returns a score to the
 132  * plugin manager so that it can select the best plugin.
 133  *****************************************************************************/
 134 static int vout_Probe( probedata_t *p_data )
 135 {
 136     int i_fd;
 137
 138     if( TestMethod( VOUT_METHOD_VAR, "fb" ) )
 139     {
 140         return( 999 );
 141     }
 142
 143     i_fd = open( main_GetPszVariable( VOUT_FB_DEV_VAR,
 144                                       VOUT_FB_DEV_DEFAULT ), O_RDWR );
 145     if( i_fd == -1 )
 146     {
 147         return( 0 );
 148     }
 149     close( i_fd );
 150
 151     return( 30 );
 152 }
 153
 154 /*****************************************************************************
 155  * vout_Create: allocates FB video thread output method
 156  *****************************************************************************
 157  * This function allocates and initializes a FB vout method.
 158  *****************************************************************************/
 159 static int vout_Create( vout_thread_t *p_vout )
 160 {
 161     struct sigaction    sig_tty;                 /* sigaction for tty change */
 162     struct vt_mode      vt_mode;                          /* vt current mode */
 163     struct termios      new_termios;
 164
 165     /* Allocate instance and initialize some members */
 166     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 167     if( p_vout->p_sys == NULL )
 168     {
 169         return( 1 );
 170     };
 171
 172     /* Set tty and fb devices */
 173     p_vout->p_sys->i_tty_dev = 0;       /* 0 == /dev/tty0 == current console */
 174
 175     FBGfxMode( p_vout->p_sys->i_tty_dev );
 176
 177     /* Set keyboard settings */
 178     if (tcgetattr(0, &p_vout->p_sys->old_termios) == -1)
 179     {
 180         intf_ErrMsg( "intf error: tcgetattr" );
 181     }
 182
 183     if (tcgetattr(0, &new_termios) == -1)
 184     {
 185         intf_ErrMsg( "intf error: tcgetattr" );
 186     }
 187
 188  /* new_termios.c_lflag &= ~ (ICANON | ISIG);
 189     new_termios.c_lflag |= (ECHO | ECHOCTL); */
 190     new_termios.c_lflag &= ~ (ICANON);
 191     new_termios.c_lflag &= ~(ECHO | ECHOCTL);
 192     new_termios.c_iflag = 0;
 193     new_termios.c_cc[VMIN] = 1;
 194     new_termios.c_cc[VTIME] = 0;
 195
 196     if (tcsetattr(0, TCSAFLUSH, &new_termios) == -1)
 197     {
 198         intf_ErrMsg( "intf error: tcsetattr" );
 199     }
 200
 201     ioctl(p_vout->p_sys->i_tty_dev, VT_RELDISP, VT_ACKACQ);
 202
 203     /* Set-up tty signal handler to be aware of tty changes */
 204     memset( &sig_tty, 0, sizeof( sig_tty ) );
 205     sig_tty.sa_handler = FBSwitchDisplay;
 206     sigemptyset( &sig_tty.sa_mask );
 207     if( sigaction( SIGUSR1, &sig_tty, &p_vout->p_sys->sig_usr1 ) ||
 208         sigaction( SIGUSR2, &sig_tty, &p_vout->p_sys->sig_usr2 ) )
 209     {
 210         intf_ErrMsg( "intf error: can't set up signal handler (%s)",
 211                      strerror(errno) );
 212         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 213         FBTextMode( p_vout->p_sys->i_tty_dev );
 214         free( p_vout->p_sys );
 215         return( 1 );
 216     }
 217
 218     /* Set-up tty according to new signal handler */
 219     if( ioctl(p_vout->p_sys->i_tty_dev, VT_GETMODE, &p_vout->p_sys->vt_mode)
 220         == -1 )
 221     {
 222         intf_ErrMsg( "intf error: cant get terminal mode (%s)",
 223                      strerror(errno) );
 224         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 225         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 226         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 227         FBTextMode( p_vout->p_sys->i_tty_dev );
 228         free( p_vout->p_sys );
 229         return( 1 );
 230     }
 231     memcpy( &vt_mode, &p_vout->p_sys->vt_mode, sizeof( vt_mode ) );
 232     vt_mode.mode   = VT_PROCESS;
 233     vt_mode.waitv  = 0;
 234     vt_mode.relsig = SIGUSR1;
 235     vt_mode.acqsig = SIGUSR2;
 236
 237     if( ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &vt_mode) == -1 )
 238     {
 239         intf_ErrMsg( "intf error: can't set terminal mode (%s)",
 240                      strerror(errno) );
 241         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 242         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 243         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 244         FBTextMode( p_vout->p_sys->i_tty_dev );
 245         free( p_vout->p_sys );
 246         return( 1 );
 247     }
 248
 249     if( FBOpenDisplay( p_vout ) )
 250     {
 251         ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &p_vout->p_sys->vt_mode);
 252         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 253         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 254         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 255         FBTextMode( p_vout->p_sys->i_tty_dev );
 256         free( p_vout->p_sys );
 257         return( 1 );
 258     }
 259
 260     return( 0 );
 261 }
 262
 263 /*****************************************************************************
 264  * vout_Init: initialize framebuffer video thread output method
 265  *****************************************************************************/
 266 static int vout_Init( vout_thread_t *p_vout )
 267 {
 268     /* Clear the screen */
 269     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 270
 271     return( 0 );
 272 }
 273
 274 /*****************************************************************************
 275  * vout_End: terminate framebuffer video thread output method
 276  *****************************************************************************/
 277 static void vout_End( vout_thread_t *p_vout )
 278 {
 279     /* Clear the screen */
 280     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 281 }
 282
 283 /*****************************************************************************
 284  * vout_Destroy: destroy FB video thread output method
 285  *****************************************************************************
 286  * Terminate an output method created by vout_CreateOutputMethod
 287  *****************************************************************************/
 288 static void vout_Destroy( vout_thread_t *p_vout )
 289 {
 290     FBCloseDisplay( p_vout );
 291
 292     /* Reset the terminal */
 293     ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &p_vout->p_sys->vt_mode);
 294
 295     /* Remove signal handlers */
 296     sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 297     sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 298
 299     /* Reset the keyboard state */
 300     tcsetattr( 0, 0, &p_vout->p_sys->old_termios );
 301
 302     /* Return to text mode */
 303     FBTextMode( p_vout->p_sys->i_tty_dev );
 304
 305     /* Destroy structure */
 306     free( p_vout->p_sys );
 307 }
 308
 309 /*****************************************************************************
 310  * vout_Manage: handle FB events
 311  *****************************************************************************
 312  * This function should be called regularly by video output thread. It manages
 313  * console events. It returns a non null value on error.
 314  *****************************************************************************/
 315 static int vout_Manage( vout_thread_t *p_vout )
 316 {
 317 #if 0
 318     u8 buf;
 319
 320     if ( read(0, &buf, 1) == 1)
 321     {
 322         switch( buf )
 323         {
 324         case 'q':
 325             p_main->p_intf->b_die = 1;
 326             break;
 327
 328         default:
 329             break;
 330         }
 331     }
 332 #endif
 333
 334     /*
 335      * Size change
 336      */
 337     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 338     {
 339         intf_WarnMsg( 3, "vout: reinitializing framebuffer screen" );
 340         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 341
 342         /* Destroy XImages to change their size */
 343         vout_End( p_vout );
 344
 345         /* Recreate XImages. If SysInit failed, the thread can't go on. */
 346         if( vout_Init( p_vout ) )
 347         {
 348             intf_ErrMsg("error: cannot reinit framebuffer screen" );
 349             return( 1 );
 350         }
 351
 352         /* Clear screen */
 353         memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 354
 355 #if 1
 356         /* Tell the video output thread that it will need to rebuild YUV
 357          * tables. This is needed since conversion buffer size may have changed */
 358         p_vout->i_changes |= VOUT_YUV_CHANGE;
 359 #endif
 360     }
 361
 362     return 0;
 363 }
 364
 365 /*****************************************************************************
 366  * vout_Display: displays previously rendered output
 367  *****************************************************************************
 368  * This function send the currently rendered image to FB image, waits until
 369  * it is displayed and switch the two rendering buffers, preparing next frame.
 370  *****************************************************************************/
 371 static void vout_Display( vout_thread_t *p_vout )
 372 {
 373     /* swap the two Y offsets if the drivers supports panning */
 374     if( p_vout->p_sys->b_pan )
 375     {
 376         p_vout->p_sys->var_info.yoffset =
 377             p_vout->i_buffer_index ? p_vout->p_sys->var_info.yres : 0;
 378
 379         /* the X offset should be 0, but who knows ...
 380          * some other app might have played with the framebuffer */
 381         p_vout->p_sys->var_info.xoffset = 0;
 382
 383         ioctl( p_vout->p_sys->i_fb_dev,
 384                FBIOPAN_DISPLAY, &p_vout->p_sys->var_info );
 385     }
 386 }
 387
 388 /*****************************************************************************
 389  * vout_SetPalette: sets an 8 bpp palette
 390  *****************************************************************************
 391  * This function sets the palette given as an argument. It does not return
 392  * anything, but could later send information on which colors it was unable
 393  * to set.
 394  *****************************************************************************/
 395 static void vout_SetPalette( p_vout_thread_t p_vout,
 396                              u16 *red, u16 *green, u16 *blue, u16 *transp )
 397 {
 398     struct fb_cmap cmap = { 0, 256, red, green, blue, transp };
 399
 400     ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &cmap );
 401 }
 402
 403 /* following functions are local */
 404
 405 /*****************************************************************************
 406  * FBOpenDisplay: initialize framebuffer
 407  *****************************************************************************/
 408 static int FBOpenDisplay( vout_thread_t *p_vout )
 409 {
 410     char *psz_device;                             /* framebuffer device path */
 411     struct fb_fix_screeninfo    fix_info;     /* framebuffer fix information */
 412
 413     /* Open framebuffer device */
 414     psz_device = main_GetPszVariable( VOUT_FB_DEV_VAR, VOUT_FB_DEV_DEFAULT );
 415     p_vout->p_sys->i_fb_dev = open( psz_device, O_RDWR);
 416     if( p_vout->p_sys->i_fb_dev == -1 )
 417     {
 418         intf_ErrMsg("vout error: can't open %s (%s)", psz_device, strerror(errno) );
 419         return( 1 );
 420     }
 421
 422     /* Get framebuffer device informations */
 423     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
 424     {
 425         intf_ErrMsg("vout error: can't get fb info (%s)", strerror(errno) );
 426         close( p_vout->p_sys->i_fb_dev );
 427         return( 1 );
 428     }
 429
 430     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->old_info ) )
 431     {
 432         intf_ErrMsg("vout error: can't get 2nd fb info (%s)", strerror(errno) );
 433         close( p_vout->p_sys->i_fb_dev );
 434         return( 1 );
 435     }
 436
 437     /* Set some attributes */
 438     p_vout->p_sys->var_info.activate = FB_ACTIVATE_NXTOPEN;
 439     p_vout->p_sys->var_info.xoffset =  0;
 440     p_vout->p_sys->var_info.yoffset =  0;
 441
 442     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info ) )
 443     {
 444         intf_ErrMsg(" vout error: can't set fb info (%s)", strerror(errno) );
 445         close( p_vout->p_sys->i_fb_dev );
 446         return( 1 );
 447     }
 448
 449     /* Get some informations again, in the definitive configuration */
 450     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_FSCREENINFO, &fix_info ) ||
 451         ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
 452     {
 453         intf_ErrMsg(" vout error: can't get additional fb info (%s)", strerror(errno) );
 454
 455         /* Restore fb config */
 456         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 457
 458         close( p_vout->p_sys->i_fb_dev );
 459         return( 1 );
 460     }
 461
 462     /* FIXME: if the image is full-size, it gets cropped on the left
 463      * because of the xres / xres_virtual slight difference */
 464     intf_WarnMsg( 3, "vout: %ix%i (virtual %ix%i)",
 465                   p_vout->p_sys->var_info.xres,
 466                   p_vout->p_sys->var_info.yres,
 467                   p_vout->p_sys->var_info.xres_virtual,
 468                   p_vout->p_sys->var_info.yres_virtual );
 469
 470     p_vout->i_height = p_vout->p_sys->var_info.yres;
 471     p_vout->i_width  = p_vout->p_sys->var_info.xres_virtual ?
 472                            p_vout->p_sys->var_info.xres_virtual
 473                            : p_vout->p_sys->var_info.xres;
 474
 475     p_vout->i_screen_depth = p_vout->p_sys->var_info.bits_per_pixel;
 476
 477     p_vout->p_sys->fb_palette = NULL;
 478     p_vout->p_sys->b_pan = ( fix_info.ypanstep || fix_info.ywrapstep );
 479
 480     switch( p_vout->i_screen_depth )
 481     {
 482     case 8:                                                         /* 8 bpp */
 483         p_vout->p_sys->fb_palette = malloc( 8 * 256 * sizeof( u16 ) );
 484         p_vout->p_sys->fb_cmap.start = 0;
 485         p_vout->p_sys->fb_cmap.len = 256;
 486         p_vout->p_sys->fb_cmap.red = p_vout->p_sys->fb_palette;
 487         p_vout->p_sys->fb_cmap.green = p_vout->p_sys->fb_palette + 256 * sizeof( u16 );
 488         p_vout->p_sys->fb_cmap.blue = p_vout->p_sys->fb_palette + 2 * 256 * sizeof( u16 );
 489         p_vout->p_sys->fb_cmap.transp = p_vout->p_sys->fb_palette + 3 * 256 * sizeof( u16 );
 490
 491         /* Save the colormap */
 492         ioctl( p_vout->p_sys->i_fb_dev, FBIOGETCMAP, &p_vout->p_sys->fb_cmap );
 493
 494         p_vout->i_bytes_per_pixel = 1;
 495         p_vout->i_bytes_per_line = p_vout->i_width;
 496         break;
 497
 498     case 15:                      /* 15 bpp (16bpp with a missing green bit) */
 499     case 16:                                        /* 16 bpp (65536 colors) */
 500         p_vout->i_bytes_per_pixel = 2;
 501         p_vout->i_bytes_per_line = p_vout->i_width * 2;
 502         break;
 503
 504     case 24:                                  /* 24 bpp (millions of colors) */
 505         p_vout->i_bytes_per_pixel = 3;
 506         p_vout->i_bytes_per_line = p_vout->i_width * 3;
 507         break;
 508
 509     case 32:                                  /* 32 bpp (millions of colors) */
 510         p_vout->i_bytes_per_pixel = 4;
 511         p_vout->i_bytes_per_line = p_vout->i_width * 4;
 512         break;
 513
 514     default:                                     /* unsupported screen depth */
 515         intf_ErrMsg( "vout error: screen depth %d is not supported",
 516                      p_vout->i_screen_depth);
 517
 518         /* Restore fb config */
 519         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 520
 521         close( p_vout->p_sys->i_fb_dev );
 522         return( 1 );
 523         break;
 524     }
 525
 526     switch( p_vout->i_screen_depth )
 527     {
 528     case 15:
 529     case 16:
 530     case 24:
 531     case 32:
 532         p_vout->i_red_mask =    ( (1 << p_vout->p_sys->var_info.red.length) - 1 )
 533                                     << p_vout->p_sys->var_info.red.offset;
 534         p_vout->i_green_mask =    ( (1 << p_vout->p_sys->var_info.green.length) - 1 )
 535                                     << p_vout->p_sys->var_info.green.offset;
 536         p_vout->i_blue_mask =    ( (1 << p_vout->p_sys->var_info.blue.length) - 1 )
 537                                     << p_vout->p_sys->var_info.blue.offset;
 538     }
 539
 540     p_vout->p_sys->i_page_size = p_vout->i_width *
 541                 p_vout->i_height * p_vout->i_bytes_per_pixel;
 542
 543     /* Map two framebuffers a the very beginning of the fb */
 544     p_vout->p_sys->p_video = mmap( 0, p_vout->p_sys->i_page_size * 2,
 545                                    PROT_READ | PROT_WRITE, MAP_SHARED,
 546                                    p_vout->p_sys->i_fb_dev, 0 );
 547
 548     if( (int)p_vout->p_sys->p_video == -1 ) /* according to man, it is -1.
 549                                                What about NULL ? */
 550     {
 551         intf_ErrMsg("vout error: can't map video memory (%s)", strerror(errno) );
 552         /* FIXME: restore fb config ?? */
 553         if( p_vout->i_screen_depth == 8 )
 554         {
 555             free( p_vout->p_sys->fb_palette );
 556         }
 557
 558         /* Restore fb config */
 559         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 560
 561         close( p_vout->p_sys->i_fb_dev );
 562         return( 1 );
 563     }
 564
 565     /* Set and initialize buffers */
 566     if( p_vout->p_sys->b_pan )
 567     {
 568         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_video,
 569                                  p_vout->p_sys->p_video
 570                                   + p_vout->p_sys->i_page_size );
 571     }
 572     else
 573     {
 574         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_video,
 575                                  p_vout->p_sys->p_video );
 576     }
 577
 578     intf_WarnMsg( 3, "framebuffer type=%d, visual=%d, ypanstep=%d, ywrap=%d, accel=%d",
 579                   fix_info.type, fix_info.visual, fix_info.ypanstep, fix_info.ywrapstep, fix_info.accel );
 580     return( 0 );
 581 }
 582
 583 /*****************************************************************************
 584  * FBCloseDisplay: terminate FB video thread output method
 585  *****************************************************************************/
 586 static void FBCloseDisplay( vout_thread_t *p_vout )
 587 {
 588     /* Clear display */
 589     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 590
 591     /* Restore palette */
 592     if( p_vout->i_screen_depth == 8 );
 593     {
 594         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &p_vout->p_sys->fb_cmap );
 595         free( p_vout->p_sys->fb_palette );
 596     }
 597
 598     /* Restore fb config */
 599     ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 600
 601     /* Close fb */
 602     close( p_vout->p_sys->i_fb_dev );
 603 }
 604
 605 /*****************************************************************************
 606  * FBSwitchDisplay: VT change signal handler
 607  *****************************************************************************
 608  * This function activates or deactivates the output of the thread. It is
 609  * called by the VT driver, on terminal change.
 610  *****************************************************************************/
 611 static void FBSwitchDisplay(int i_signal)
 612 {
 613 #if 0
 614     vout_thread_t *p_vout;
 615
 616     vlc_mutex_lock( &p_vout_bank->lock );
 617
 618     /* XXX: only test the first video output */
 619     if( p_vout_bank->i_count )
 620     {
 621         p_vout = p_vout_bank->pp_vout[0];
 622
 623         switch( i_signal )
 624         {
 625         case SIGUSR1:                                /* vt has been released */
 626             p_vout->b_active = 0;
 627             ioctl( p_vout->p_sys->i_tty_dev, VT_RELDISP, 1 );
 628             break;
 629         case SIGUSR2:                                /* vt has been acquired */
 630             p_vout->b_active = 1;
 631             ioctl( p_vout->p_sys->i_tty_dev, VT_RELDISP, VT_ACTIVATE );
 632             /* handle blanking */
 633             vlc_mutex_lock( &p_vout->change_lock );
 634             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 635             vlc_mutex_unlock( &p_vout->change_lock );
 636             break;
 637         }
 638     }
 639
 640     vlc_mutex_unlock( &p_vout_bank->lock );
 641 #endif
 642 }
 643
 644 /*****************************************************************************
 645  * FBTextMode and FBGfxMode : switch tty to text/graphic mode
 646  *****************************************************************************
 647  * These functions toggle the tty mode.
 648  *****************************************************************************/
 649 static void FBTextMode( int i_tty_dev )
 650 {
 651     /* return to text mode */
 652     if (-1 == ioctl(i_tty_dev, KDSETMODE, KD_TEXT))
 653     {
 654         intf_ErrMsg( "intf error: failed ioctl KDSETMODE KD_TEXT" );
 655     }
 656 }
 657
 658 static void FBGfxMode( int i_tty_dev )
 659 {
 660     /* switch to graphic mode */
 661     if (-1 == ioctl(i_tty_dev, KDSETMODE, KD_GRAPHICS))
 662     {
 663         intf_ErrMsg( "intf error: failed ioctl KDSETMODE KD_GRAPHICS" );
 664     }
 665 }
 666