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 1.12 2001/05/07 03:14:09 stef 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 /*****************************************************************************
  61  * vout_sys_t: video output framebuffer method descriptor
  62  *****************************************************************************
  63  * This structure is part of the video output thread descriptor.
  64  * It describes the FB specific properties of an output thread.
  65  *****************************************************************************/
  66 typedef struct vout_sys_s
  67 {
  68     /* System informations */
  69     int                 i_tty_dev;                      /* tty device handle */
  70     struct termios      old_termios;
  71
  72     /* Original configuration informations */
  73     struct sigaction            sig_usr1;           /* USR1 previous handler */
  74     struct sigaction            sig_usr2;           /* USR2 previous handler */
  75     struct vt_mode              vt_mode;                 /* previous VT mode */
  76
  77     /* Framebuffer information */
  78     int                         i_fb_dev;                   /* device handle */
  79     struct fb_var_screeninfo    old_info;      /* original mode informations */
  80     struct fb_var_screeninfo    var_info;       /* current mode informations */
  81     boolean_t                   b_pan;     /* does device supports panning ? */
  82     struct fb_cmap              fb_cmap;                /* original colormap */
  83     u16                         *fb_palette;             /* original palette */
  84
  85     /* Video memory */
  86     byte_t *                    p_video;                      /* base adress */
  87     size_t                      i_page_size;                    /* page size */
  88
  89 } vout_sys_t;
  90
  91 /*****************************************************************************
  92  * Local prototypes.
  93  *****************************************************************************/
  94 static int  vout_Probe     ( probedata_t *p_data );
  95 static int  vout_Create    ( struct vout_thread_s * );
  96 static int  vout_Init      ( struct vout_thread_s * );
  97 static void vout_End       ( struct vout_thread_s * );
  98 static void vout_Destroy   ( struct vout_thread_s * );
  99 static int  vout_Manage    ( struct vout_thread_s * );
 100 static void vout_Display   ( struct vout_thread_s * );
 101 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 102                              u16 *blue, u16 *transp );
 103
 104 static int  FBOpenDisplay  ( struct vout_thread_s * );
 105 static void FBCloseDisplay ( struct vout_thread_s * );
 106 static void FBSwitchDisplay( int i_signal );
 107 static void FBTextMode     ( int i_tty_dev );
 108 static void FBGfxMode      ( int i_tty_dev );
 109
 110 /*****************************************************************************
 111  * Functions exported as capabilities. They are declared as static so that
 112  * we don't pollute the namespace too much.
 113  *****************************************************************************/
 114 void _M( vout_getfunctions )( function_list_t * p_function_list )
 115 {
 116     p_function_list->pf_probe = vout_Probe;
 117     p_function_list->functions.vout.pf_create     = vout_Create;
 118     p_function_list->functions.vout.pf_init       = vout_Init;
 119     p_function_list->functions.vout.pf_end        = vout_End;
 120     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 121     p_function_list->functions.vout.pf_manage     = vout_Manage;
 122     p_function_list->functions.vout.pf_display    = vout_Display;
 123     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 124 }
 125
 126 /*****************************************************************************
 127  * vout_Probe: probe the video driver and return a score
 128  *****************************************************************************
 129  * This function tries to open the framebuffer and returns a score to the
 130  * plugin manager so that it can select the best plugin.
 131  *****************************************************************************/
 132 static int vout_Probe( probedata_t *p_data )
 133 {
 134     int i_fd;
 135
 136     if( TestMethod( VOUT_METHOD_VAR, "fb" ) )
 137     {
 138         return( 999 );
 139     }
 140
 141     i_fd = open( main_GetPszVariable( VOUT_FB_DEV_VAR,
 142                                       VOUT_FB_DEV_DEFAULT ), O_RDWR );
 143     if( i_fd == -1 )
 144     {
 145         return( 0 );
 146     }
 147     close( i_fd );
 148
 149     return( 30 );
 150 }
 151
 152 /*****************************************************************************
 153  * vout_Create: allocates FB video thread output method
 154  *****************************************************************************
 155  * This function allocates and initializes a FB vout method.
 156  *****************************************************************************/
 157 static int vout_Create( vout_thread_t *p_vout )
 158 {
 159     struct sigaction    sig_tty;                 /* sigaction for tty change */
 160     struct vt_mode      vt_mode;                          /* vt current mode */
 161     struct termios      new_termios;
 162
 163     /* Allocate instance and initialize some members */
 164     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 165     if( p_vout->p_sys == NULL )
 166     {
 167         return( 1 );
 168     };
 169
 170     /* Set tty and fb devices */
 171     p_vout->p_sys->i_tty_dev = 0;       /* 0 == /dev/tty0 == current console */
 172
 173     FBGfxMode( p_vout->p_sys->i_tty_dev );
 174
 175     /* Set keyboard settings */
 176     if (tcgetattr(0, &p_vout->p_sys->old_termios) == -1)
 177     {
 178         intf_ErrMsg( "intf error: tcgetattr" );
 179     }
 180
 181     if (tcgetattr(0, &new_termios) == -1)
 182     {
 183         intf_ErrMsg( "intf error: tcgetattr" );
 184     }
 185
 186  /* new_termios.c_lflag &= ~ (ICANON | ISIG);
 187     new_termios.c_lflag |= (ECHO | ECHOCTL); */
 188     new_termios.c_lflag &= ~ (ICANON);
 189     new_termios.c_lflag &= ~(ECHO | ECHOCTL);
 190     new_termios.c_iflag = 0;
 191     new_termios.c_cc[VMIN] = 1;
 192     new_termios.c_cc[VTIME] = 0;
 193
 194     if (tcsetattr(0, TCSAFLUSH, &new_termios) == -1)
 195     {
 196         intf_ErrMsg( "intf error: tcsetattr" );
 197     }
 198
 199     ioctl(p_vout->p_sys->i_tty_dev, VT_RELDISP, VT_ACKACQ);
 200
 201     /* Set-up tty signal handler to be aware of tty changes */
 202     memset( &sig_tty, 0, sizeof( sig_tty ) );
 203     sig_tty.sa_handler = FBSwitchDisplay;
 204     sigemptyset( &sig_tty.sa_mask );
 205     if( sigaction( SIGUSR1, &sig_tty, &p_vout->p_sys->sig_usr1 ) ||
 206         sigaction( SIGUSR2, &sig_tty, &p_vout->p_sys->sig_usr2 ) )
 207     {
 208         intf_ErrMsg( "intf error: can't set up signal handler (%s)",
 209                      strerror(errno) );
 210         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 211         FBTextMode( p_vout->p_sys->i_tty_dev );
 212         free( p_vout->p_sys );
 213         return( 1 );
 214     }
 215
 216     /* Set-up tty according to new signal handler */
 217     if( ioctl(p_vout->p_sys->i_tty_dev, VT_GETMODE, &p_vout->p_sys->vt_mode)
 218         == -1 )
 219     {
 220         intf_ErrMsg( "intf error: cant get terminal mode (%s)",
 221                      strerror(errno) );
 222         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 223         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 224         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 225         FBTextMode( p_vout->p_sys->i_tty_dev );
 226         free( p_vout->p_sys );
 227         return( 1 );
 228     }
 229     memcpy( &vt_mode, &p_vout->p_sys->vt_mode, sizeof( vt_mode ) );
 230     vt_mode.mode   = VT_PROCESS;
 231     vt_mode.waitv  = 0;
 232     vt_mode.relsig = SIGUSR1;
 233     vt_mode.acqsig = SIGUSR2;
 234
 235     if( ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &vt_mode) == -1 )
 236     {
 237         intf_ErrMsg( "intf error: can't set terminal mode (%s)",
 238                      strerror(errno) );
 239         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 240         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 241         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 242         FBTextMode( p_vout->p_sys->i_tty_dev );
 243         free( p_vout->p_sys );
 244         return( 1 );
 245     }
 246
 247     if( FBOpenDisplay( p_vout ) )
 248     {
 249         ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &p_vout->p_sys->vt_mode);
 250         sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 251         sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 252         tcsetattr(0, 0, &p_vout->p_sys->old_termios);
 253         FBTextMode( p_vout->p_sys->i_tty_dev );
 254         free( p_vout->p_sys );
 255         return( 1 );
 256     }
 257
 258     return( 0 );
 259 }
 260
 261 /*****************************************************************************
 262  * vout_Init: initialize framebuffer video thread output method
 263  *****************************************************************************/
 264 static int vout_Init( vout_thread_t *p_vout )
 265 {
 266     /* Clear the screen */
 267     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 268
 269     return( 0 );
 270 }
 271
 272 /*****************************************************************************
 273  * vout_End: terminate framebuffer video thread output method
 274  *****************************************************************************/
 275 static void vout_End( vout_thread_t *p_vout )
 276 {
 277     /* Clear the screen */
 278     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 279 }
 280
 281 /*****************************************************************************
 282  * vout_Destroy: destroy FB video thread output method
 283  *****************************************************************************
 284  * Terminate an output method created by vout_CreateOutputMethod
 285  *****************************************************************************/
 286 static void vout_Destroy( vout_thread_t *p_vout )
 287 {
 288     FBCloseDisplay( p_vout );
 289
 290     /* Reset the terminal */
 291     ioctl(p_vout->p_sys->i_tty_dev, VT_SETMODE, &p_vout->p_sys->vt_mode);
 292
 293     /* Remove signal handlers */
 294     sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
 295     sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
 296
 297     /* Reset the keyboard state */
 298     tcsetattr( 0, 0, &p_vout->p_sys->old_termios );
 299
 300     /* Return to text mode */
 301     FBTextMode( p_vout->p_sys->i_tty_dev );
 302
 303     /* Destroy structure */
 304     free( p_vout->p_sys );
 305 }
 306
 307 /*****************************************************************************
 308  * vout_Manage: handle FB events
 309  *****************************************************************************
 310  * This function should be called regularly by video output thread. It manages
 311  * console events. It returns a non null value on error.
 312  *****************************************************************************/
 313 static int vout_Manage( vout_thread_t *p_vout )
 314 {
 315 #if 0
 316     u8 buf;
 317
 318     if ( read(0, &buf, 1) == 1)
 319     {
 320         switch( buf )
 321         {
 322         case 'q':
 323             p_main->p_intf->b_die = 1;
 324             break;
 325
 326         default:
 327             break;
 328         }
 329     }
 330 #endif
 331
 332     /*
 333      * Size change
 334      */
 335     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 336     {
 337         intf_WarnMsg( 3, "vout: reinitializing framebuffer screen" );
 338         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 339
 340         /* Destroy XImages to change their size */
 341         vout_End( p_vout );
 342
 343         /* Recreate XImages. If SysInit failed, the thread can't go on. */
 344         if( vout_Init( p_vout ) )
 345         {
 346             intf_ErrMsg("error: cannot reinit framebuffer screen" );
 347             return( 1 );
 348         }
 349
 350         /* Clear screen */
 351         memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 352
 353 #if 1
 354         /* Tell the video output thread that it will need to rebuild YUV
 355          * tables. This is needed since conversion buffer size may have changed */
 356         p_vout->i_changes |= VOUT_YUV_CHANGE;
 357 #endif
 358     }
 359
 360     return 0;
 361 }
 362
 363 /*****************************************************************************
 364  * vout_Display: displays previously rendered output
 365  *****************************************************************************
 366  * This function send the currently rendered image to FB image, waits until
 367  * it is displayed and switch the two rendering buffers, preparing next frame.
 368  *****************************************************************************/
 369 static void vout_Display( vout_thread_t *p_vout )
 370 {
 371     /* swap the two Y offsets if the drivers supports panning */
 372     if( p_vout->p_sys->b_pan )
 373     {
 374         p_vout->p_sys->var_info.yoffset =
 375             p_vout->i_buffer_index ? p_vout->p_sys->var_info.yres : 0;
 376
 377         /* the X offset should be 0, but who knows ...
 378          * some other app might have played with the framebuffer */
 379         p_vout->p_sys->var_info.xoffset = 0;
 380
 381         ioctl( p_vout->p_sys->i_fb_dev,
 382                FBIOPAN_DISPLAY, &p_vout->p_sys->var_info );
 383     }
 384 }
 385
 386 /*****************************************************************************
 387  * vout_SetPalette: sets an 8 bpp palette
 388  *****************************************************************************
 389  * This function sets the palette given as an argument. It does not return
 390  * anything, but could later send information on which colors it was unable
 391  * to set.
 392  *****************************************************************************/
 393 static void vout_SetPalette( p_vout_thread_t p_vout,
 394                              u16 *red, u16 *green, u16 *blue, u16 *transp )
 395 {
 396     struct fb_cmap cmap = { 0, 256, red, green, blue, transp };
 397
 398     ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &cmap );
 399 }
 400
 401 /* following functions are local */
 402
 403 /*****************************************************************************
 404  * FBOpenDisplay: initialize framebuffer
 405  *****************************************************************************/
 406 static int FBOpenDisplay( vout_thread_t *p_vout )
 407 {
 408     char *psz_device;                             /* framebuffer device path */
 409     struct fb_fix_screeninfo    fix_info;     /* framebuffer fix information */
 410
 411     /* Open framebuffer device */
 412     psz_device = main_GetPszVariable( VOUT_FB_DEV_VAR, VOUT_FB_DEV_DEFAULT );
 413     p_vout->p_sys->i_fb_dev = open( psz_device, O_RDWR);
 414     if( p_vout->p_sys->i_fb_dev == -1 )
 415     {
 416         intf_ErrMsg("vout error: can't open %s (%s)", psz_device, strerror(errno) );
 417         return( 1 );
 418     }
 419
 420     /* Get framebuffer device informations */
 421     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
 422     {
 423         intf_ErrMsg("vout error: can't get fb info (%s)", strerror(errno) );
 424         close( p_vout->p_sys->i_fb_dev );
 425         return( 1 );
 426     }
 427
 428     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->old_info ) )
 429     {
 430         intf_ErrMsg("vout error: can't get 2nd fb info (%s)", strerror(errno) );
 431         close( p_vout->p_sys->i_fb_dev );
 432         return( 1 );
 433     }
 434
 435     /* Set some attributes */
 436     p_vout->p_sys->var_info.activate = FB_ACTIVATE_NXTOPEN;
 437     p_vout->p_sys->var_info.xoffset =  0;
 438     p_vout->p_sys->var_info.yoffset =  0;
 439
 440     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info ) )
 441     {
 442         intf_ErrMsg(" vout error: can't set fb info (%s)", strerror(errno) );
 443         close( p_vout->p_sys->i_fb_dev );
 444         return( 1 );
 445     }
 446
 447     /* Get some informations again, in the definitive configuration */
 448     if( ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_FSCREENINFO, &fix_info ) ||
 449         ioctl( p_vout->p_sys->i_fb_dev, FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
 450     {
 451         intf_ErrMsg(" vout error: can't get additional fb info (%s)", strerror(errno) );
 452
 453         /* Restore fb config */
 454         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 455
 456         close( p_vout->p_sys->i_fb_dev );
 457         return( 1 );
 458     }
 459
 460     /* FIXME: if the image is full-size, it gets cropped on the left
 461      * because of the xres / xres_virtual slight difference */
 462     intf_WarnMsg( 3, "vout: %ix%i (virtual %ix%i)",
 463                   p_vout->p_sys->var_info.xres,
 464                   p_vout->p_sys->var_info.yres,
 465                   p_vout->p_sys->var_info.xres_virtual,
 466                   p_vout->p_sys->var_info.yres_virtual );
 467
 468     p_vout->i_height = p_vout->p_sys->var_info.yres;
 469     p_vout->i_width  = p_vout->p_sys->var_info.xres_virtual ?
 470                            p_vout->p_sys->var_info.xres_virtual
 471                            : p_vout->p_sys->var_info.xres;
 472
 473     p_vout->i_screen_depth = p_vout->p_sys->var_info.bits_per_pixel;
 474
 475     p_vout->p_sys->fb_palette = NULL;
 476     p_vout->p_sys->b_pan = ( fix_info.ypanstep || fix_info.ywrapstep );
 477
 478     switch( p_vout->i_screen_depth )
 479     {
 480     case 8:                                                         /* 8 bpp */
 481         p_vout->p_sys->fb_palette = malloc( 8 * 256 * sizeof( u16 ) );
 482         p_vout->p_sys->fb_cmap.start = 0;
 483         p_vout->p_sys->fb_cmap.len = 256;
 484         p_vout->p_sys->fb_cmap.red = p_vout->p_sys->fb_palette;
 485         p_vout->p_sys->fb_cmap.green = p_vout->p_sys->fb_palette + 256 * sizeof( u16 );
 486         p_vout->p_sys->fb_cmap.blue = p_vout->p_sys->fb_palette + 2 * 256 * sizeof( u16 );
 487         p_vout->p_sys->fb_cmap.transp = p_vout->p_sys->fb_palette + 3 * 256 * sizeof( u16 );
 488
 489         /* Save the colormap */
 490         ioctl( p_vout->p_sys->i_fb_dev, FBIOGETCMAP, &p_vout->p_sys->fb_cmap );
 491
 492         p_vout->i_bytes_per_pixel = 1;
 493         p_vout->i_bytes_per_line = p_vout->i_width;
 494         break;
 495
 496     case 15:                      /* 15 bpp (16bpp with a missing green bit) */
 497     case 16:                                        /* 16 bpp (65536 colors) */
 498         p_vout->i_bytes_per_pixel = 2;
 499         p_vout->i_bytes_per_line = p_vout->i_width * 2;
 500         break;
 501
 502     case 24:                                  /* 24 bpp (millions of colors) */
 503         p_vout->i_bytes_per_pixel = 3;
 504         p_vout->i_bytes_per_line = p_vout->i_width * 3;
 505         break;
 506
 507     case 32:                                  /* 32 bpp (millions of colors) */
 508         p_vout->i_bytes_per_pixel = 4;
 509         p_vout->i_bytes_per_line = p_vout->i_width * 4;
 510         break;
 511
 512     default:                                     /* unsupported screen depth */
 513         intf_ErrMsg( "vout error: screen depth %d is not supported",
 514                      p_vout->i_screen_depth);
 515
 516         /* Restore fb config */
 517         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 518
 519         close( p_vout->p_sys->i_fb_dev );
 520         return( 1 );
 521         break;
 522     }
 523
 524     switch( p_vout->i_screen_depth )
 525     {
 526     case 15:
 527     case 16:
 528     case 24:
 529     case 32:
 530         p_vout->i_red_mask =    ( (1 << p_vout->p_sys->var_info.red.length) - 1 )
 531                                     << p_vout->p_sys->var_info.red.offset;
 532         p_vout->i_green_mask =    ( (1 << p_vout->p_sys->var_info.green.length) - 1 )
 533                                     << p_vout->p_sys->var_info.green.offset;
 534         p_vout->i_blue_mask =    ( (1 << p_vout->p_sys->var_info.blue.length) - 1 )
 535                                     << p_vout->p_sys->var_info.blue.offset;
 536     }
 537
 538     p_vout->p_sys->i_page_size = p_vout->i_width *
 539                 p_vout->i_height * p_vout->i_bytes_per_pixel;
 540
 541     /* Map two framebuffers a the very beginning of the fb */
 542     p_vout->p_sys->p_video = mmap( 0, p_vout->p_sys->i_page_size * 2,
 543                                    PROT_READ | PROT_WRITE, MAP_SHARED,
 544                                    p_vout->p_sys->i_fb_dev, 0 );
 545
 546     if( (int)p_vout->p_sys->p_video == -1 ) /* according to man, it is -1.
 547                                                What about NULL ? */
 548     {
 549         intf_ErrMsg("vout error: can't map video memory (%s)", strerror(errno) );
 550         /* FIXME: restore fb config ?? */
 551         if( p_vout->i_screen_depth == 8 )
 552         {
 553             free( p_vout->p_sys->fb_palette );
 554         }
 555
 556         /* Restore fb config */
 557         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 558
 559         close( p_vout->p_sys->i_fb_dev );
 560         return( 1 );
 561     }
 562
 563     /* Set and initialize buffers */
 564     if( p_vout->p_sys->b_pan )
 565     {
 566         vout_SetBuffers( p_vout, p_vout->p_sys->p_video,
 567                                  p_vout->p_sys->p_video
 568                                   + p_vout->p_sys->i_page_size );
 569     }
 570     else
 571     {
 572         vout_SetBuffers( p_vout, p_vout->p_sys->p_video,
 573                                  p_vout->p_sys->p_video );
 574     }
 575
 576     intf_WarnMsg( 3, "framebuffer type=%d, visual=%d, ypanstep=%d, ywrap=%d, accel=%d",
 577                   fix_info.type, fix_info.visual, fix_info.ypanstep, fix_info.ywrapstep, fix_info.accel );
 578     return( 0 );
 579 }
 580
 581 /*****************************************************************************
 582  * FBCloseDisplay: terminate FB video thread output method
 583  *****************************************************************************/
 584 static void FBCloseDisplay( vout_thread_t *p_vout )
 585 {
 586     /* Clear display */
 587     memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size * 2 );
 588
 589     /* Restore palette */
 590     if( p_vout->i_screen_depth == 8 );
 591     {
 592         ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &p_vout->p_sys->fb_cmap );
 593         free( p_vout->p_sys->fb_palette );
 594     }
 595
 596     /* Restore fb config */
 597     ioctl( p_vout->p_sys->i_fb_dev, FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info );
 598
 599     /* Close fb */
 600     close( p_vout->p_sys->i_fb_dev );
 601 }
 602
 603 /*****************************************************************************
 604  * FBSwitchDisplay: VT change signal handler
 605  *****************************************************************************
 606  * This function activates or deactivates the output of the thread. It is
 607  * called by the VT driver, on terminal change.
 608  *****************************************************************************/
 609 static void FBSwitchDisplay(int i_signal)
 610 {
 611     vout_thread_t *p_vout;
 612
 613     vlc_mutex_lock( &p_vout_bank->lock );
 614
 615     /* XXX: only test the first video output */
 616     if( p_vout_bank->i_count )
 617     {
 618         p_vout = p_vout_bank->pp_vout[0];
 619
 620         switch( i_signal )
 621         {
 622         case SIGUSR1:                                /* vt has been released */
 623             p_vout->b_active = 0;
 624             ioctl( p_vout->p_sys->i_tty_dev, VT_RELDISP, 1 );
 625             break;
 626         case SIGUSR2:                                /* vt has been acquired */
 627             p_vout->b_active = 1;
 628             ioctl( p_vout->p_sys->i_tty_dev, VT_RELDISP, VT_ACTIVATE );
 629             /* handle blanking */
 630             vlc_mutex_lock( &p_vout->change_lock );
 631             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 632             vlc_mutex_unlock( &p_vout->change_lock );
 633             break;
 634         }
 635     }
 636
 637     vlc_mutex_unlock( &p_vout_bank->lock );
 638 }
 639
 640 /*****************************************************************************
 641  * FBTextMode and FBGfxMode : switch tty to text/graphic mode
 642  *****************************************************************************
 643  * These functions toggle the tty mode.
 644  *****************************************************************************/
 645 static void FBTextMode( int i_tty_dev )
 646 {
 647     /* return to text mode */
 648     if (-1 == ioctl(i_tty_dev, KDSETMODE, KD_TEXT))
 649     {
 650         intf_ErrMsg( "intf error: failed ioctl KDSETMODE KD_TEXT" );
 651     }
 652 }
 653
 654 static void FBGfxMode( int i_tty_dev )
 655 {
 656     /* switch to graphic mode */
 657     if (-1 == ioctl(i_tty_dev, KDSETMODE, KD_GRAPHICS))
 658     {
 659         intf_ErrMsg( "intf error: failed ioctl KDSETMODE KD_GRAPHICS" );
 660     }
 661 }
 662