mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
821 lines
28 KiB
C
821 lines
28 KiB
C
/*****************************************************************************
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* fb.c : framebuffer plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000, 2001 the VideoLAN team
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* $Id$
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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* Jean-Paul Saman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <errno.h> /* ENOMEM */
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#include <signal.h> /* SIGUSR1, SIGUSR2 */
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#include <fcntl.h> /* open() */
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#include <unistd.h> /* close() */
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#include <termios.h> /* struct termios */
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#include <sys/ioctl.h>
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#include <sys/mman.h> /* mmap() */
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#include <linux/fb.h>
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#include <linux/vt.h> /* VT_* */
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#include <linux/kd.h> /* KD* */
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#include <vlc/vlc.h>
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#include <vlc_vout.h>
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int Create ( vlc_object_t * );
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static void Destroy ( vlc_object_t * );
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static int Init ( vout_thread_t * );
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static void End ( vout_thread_t * );
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static int Manage ( vout_thread_t * );
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static void Display ( vout_thread_t *, picture_t * );
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static int OpenDisplay ( vout_thread_t * );
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static void CloseDisplay ( vout_thread_t * );
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static void SwitchDisplay ( int i_signal );
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static void TextMode ( int i_tty );
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static void GfxMode ( int i_tty );
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define FB_DEV_VAR "fbdev"
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#define DEVICE_TEXT N_("Framebuffer device")
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#define DEVICE_LONGTEXT N_( \
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"Framebuffer device to use for rendering (usually /dev/fb0).")
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#define TTY_TEXT N_("Run fb on current tty.")
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#define TTY_LONGTEXT N_( \
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"Run framebuffer on current TTY device (default enabled). " \
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"(disable tty handling with caution)" );
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#define CHROMA_TEXT N_("Chroma used.")
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#define CHROMA_LONGTEXT N_( \
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"Force use of a specific chroma for output. Default is I420." )
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#define ASPECT_RATIO_TEXT N_("Video aspect ratio")
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#define ASPECT_RATIO_LONGTEXT N_( \
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"Aspect ratio of the video image (4:3, 16:9). Default is square pixels." )
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vlc_module_begin();
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set_shortname( "Framebuffer" );
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set_category( CAT_VIDEO );
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set_subcategory( SUBCAT_VIDEO_VOUT );
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add_file( FB_DEV_VAR, "/dev/fb0", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
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VLC_FALSE );
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add_bool( "fb-tty", 1, NULL, TTY_TEXT, TTY_LONGTEXT, VLC_TRUE );
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add_string( "fb-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
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VLC_TRUE );
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add_string( "fb-aspect-ratio", NULL, NULL, ASPECT_RATIO_TEXT,
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ASPECT_RATIO_LONGTEXT, VLC_TRUE );
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set_description( _("GNU/Linux console framebuffer video output") );
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set_capability( "video output", 30 );
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set_callbacks( Create, Destroy );
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vlc_module_end();
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/*****************************************************************************
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* vout_sys_t: video output framebuffer method descriptor
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*****************************************************************************
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* This structure is part of the video output thread descriptor.
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* It describes the FB specific properties of an output thread.
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*****************************************************************************/
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struct vout_sys_t
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{
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/* System information */
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int i_tty; /* tty device handle */
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vlc_bool_t b_tty;
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struct termios old_termios;
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/* Original configuration information */
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struct sigaction sig_usr1; /* USR1 previous handler */
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struct sigaction sig_usr2; /* USR2 previous handler */
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struct vt_mode vt_mode; /* previous VT mode */
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/* Framebuffer information */
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int i_fd; /* device handle */
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struct fb_var_screeninfo old_info; /* original mode information */
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struct fb_var_screeninfo var_info; /* current mode information */
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vlc_bool_t b_pan; /* does device supports panning ? */
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struct fb_cmap fb_cmap; /* original colormap */
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uint16_t *p_palette; /* original palette */
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/* Video information */
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int i_width;
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int i_height;
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int i_aspect;
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int i_bytes_per_pixel;
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vlc_fourcc_t i_chroma;
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/* Video memory */
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byte_t * p_video; /* base adress */
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size_t i_page_size; /* page size */
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};
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/*****************************************************************************
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* Create: allocates FB video thread output method
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*****************************************************************************
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* This function allocates and initializes a FB vout method.
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*****************************************************************************/
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static int Create( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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vout_sys_t *p_sys;
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char *psz_chroma;
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char *psz_aspect;
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struct sigaction sig_tty; /* sigaction for tty change */
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struct vt_mode vt_mode; /* vt current mode */
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struct termios new_termios;
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/* Allocate instance and initialize some members */
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p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
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if( p_vout->p_sys == NULL )
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{
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msg_Err( p_vout, "out of memory" );
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return VLC_ENOMEM;
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};
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memset( p_sys, 0, sizeof(vout_sys_t) );
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p_vout->pf_init = Init;
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p_vout->pf_end = End;
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p_vout->pf_manage = Manage;
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p_vout->pf_render = NULL;
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p_vout->pf_display = Display;
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/* Set tty and fb devices */
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p_sys->i_tty = 0; /* 0 == /dev/tty0 == current console */
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p_sys->b_tty = var_CreateGetBool( p_vout, "fb-tty" );
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#ifndef WIN32
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#if defined(HAVE_ISATTY)
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/* Check that stdin is a TTY */
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if( !p_sys->b_tty && !isatty( 0 ) )
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{
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msg_Warn( p_vout, "fd 0 is not a TTY" );
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return VLC_EGENERIC;
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}
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else
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{
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msg_Warn( p_vout, "disabling tty handling, use with caution because "
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"there is no way to return to the tty." );
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}
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#endif
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#endif
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psz_chroma = var_CreateGetNonEmptyString( p_vout, "fb-chroma" );
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if( psz_chroma )
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{
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if( strlen( psz_chroma ) == 4 )
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{
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p_sys->i_chroma = VLC_FOURCC( psz_chroma[0],
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psz_chroma[1],
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psz_chroma[2],
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psz_chroma[3] );
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msg_Dbg( p_vout, "forcing chroma '%s'", psz_chroma );
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}
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else
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{
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msg_Warn( p_vout, "invalid chroma (%s), using defaults.",
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psz_chroma );
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}
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free( psz_chroma );
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psz_chroma = NULL;
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}
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p_sys->i_aspect = -1;
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psz_aspect = var_CreateGetNonEmptyString( p_vout, "fb-aspect-ratio" );
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if( psz_aspect )
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{
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char *psz_parser = strchr( psz_aspect, ':' );
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if( psz_parser )
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{
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*psz_parser++ = '\0';
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p_sys->i_aspect = ( atoi( psz_aspect )
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* VOUT_ASPECT_FACTOR ) / atoi( psz_parser );
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}
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msg_Dbg( p_vout, "using aspect ratio %d:%d",
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atoi( psz_aspect ), atoi( psz_parser ) );
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free( psz_aspect );
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psz_aspect = NULL;
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}
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/* tty handling */
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if( p_sys->b_tty )
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{
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GfxMode( p_sys->i_tty );
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/* Set keyboard settings */
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if( tcgetattr(0, &p_vout->p_sys->old_termios) == -1 )
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{
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msg_Err( p_vout, "tcgetattr failed" );
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}
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if( tcgetattr(0, &new_termios) == -1 )
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{
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msg_Err( p_vout, "tcgetattr failed" );
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}
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/* new_termios.c_lflag &= ~ (ICANON | ISIG);
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new_termios.c_lflag |= (ECHO | ECHOCTL); */
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new_termios.c_lflag &= ~ (ICANON);
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new_termios.c_lflag &= ~(ECHO | ECHOCTL);
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new_termios.c_iflag = 0;
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new_termios.c_cc[VMIN] = 1;
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new_termios.c_cc[VTIME] = 0;
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if( tcsetattr(0, TCSAFLUSH, &new_termios) == -1 )
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{
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msg_Err( p_vout, "tcsetattr failed" );
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}
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ioctl( p_sys->i_tty, VT_RELDISP, VT_ACKACQ );
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/* Set-up tty signal handler to be aware of tty changes */
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memset( &sig_tty, 0, sizeof( sig_tty ) );
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sig_tty.sa_handler = SwitchDisplay;
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sigemptyset( &sig_tty.sa_mask );
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if( sigaction( SIGUSR1, &sig_tty, &p_vout->p_sys->sig_usr1 ) ||
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sigaction( SIGUSR2, &sig_tty, &p_vout->p_sys->sig_usr2 ) )
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{
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msg_Err( p_vout, "cannot set signal handler (%m)" );
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tcsetattr(0, 0, &p_vout->p_sys->old_termios);
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TextMode( p_sys->i_tty );
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free( p_vout->p_sys );
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return VLC_EGENERIC;
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}
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/* Set-up tty according to new signal handler */
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if( -1 == ioctl( p_sys->i_tty, VT_GETMODE, &p_vout->p_sys->vt_mode ) )
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{
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msg_Err( p_vout, "cannot get terminal mode (%m)" );
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sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
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sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
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tcsetattr(0, 0, &p_vout->p_sys->old_termios);
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TextMode( p_sys->i_tty );
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free( p_vout->p_sys );
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return VLC_EGENERIC;
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}
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memcpy( &vt_mode, &p_vout->p_sys->vt_mode, sizeof( vt_mode ) );
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vt_mode.mode = VT_PROCESS;
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vt_mode.waitv = 0;
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vt_mode.relsig = SIGUSR1;
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vt_mode.acqsig = SIGUSR2;
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if( -1 == ioctl( p_sys->i_tty, VT_SETMODE, &vt_mode ) )
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{
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msg_Err( p_vout, "cannot set terminal mode (%m)" );
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sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
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sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
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tcsetattr(0, 0, &p_vout->p_sys->old_termios);
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TextMode( p_sys->i_tty );
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free( p_vout->p_sys );
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return VLC_EGENERIC;
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}
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}
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if( OpenDisplay( p_vout ) )
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{
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if( p_sys->b_tty )
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{
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ioctl( p_sys->i_tty, VT_SETMODE, &p_vout->p_sys->vt_mode );
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sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
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sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
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tcsetattr(0, 0, &p_vout->p_sys->old_termios);
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TextMode( p_sys->i_tty );
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}
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free( p_vout->p_sys );
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return VLC_EGENERIC;
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}
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Init: initialize framebuffer video thread output method
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*****************************************************************************/
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static int Init( vout_thread_t *p_vout )
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{
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vout_sys_t *p_sys = p_vout->p_sys;
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int i_index;
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picture_t *p_pic;
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I_OUTPUTPICTURES = 0;
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if( p_sys->i_chroma == 0 )
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{
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/* Initialize the output structure: RGB with square pixels, whatever
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* the input format is, since it's the only format we know */
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switch( p_sys->var_info.bits_per_pixel )
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{
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case 8: /* FIXME: set the palette */
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p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
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case 15:
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p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
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case 16:
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p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
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case 24:
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p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
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case 32:
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p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
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default:
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msg_Err( p_vout, "unknown screen depth %i",
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p_vout->p_sys->var_info.bits_per_pixel );
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return VLC_EGENERIC;
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}
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if( p_sys->var_info.bits_per_pixel != 8 )
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{
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p_vout->output.i_rmask = ( (1 << p_sys->var_info.red.length) - 1 )
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<< p_sys->var_info.red.offset;
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p_vout->output.i_gmask = ( (1 << p_sys->var_info.green.length) - 1 )
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<< p_sys->var_info.green.offset;
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p_vout->output.i_bmask = ( (1 << p_sys->var_info.blue.length) - 1 )
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<< p_sys->var_info.blue.offset;
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}
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}
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else
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{
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p_vout->output.i_chroma = p_sys->i_chroma;
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}
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p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
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p_vout->output.i_width = p_vout->render.i_width = p_sys->i_width;
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p_vout->output.i_height = p_vout->render.i_height = p_sys->i_height;
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/* Assume we have square pixels */
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if( p_sys->i_aspect < 0 )
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{
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p_vout->output.i_aspect = ( p_sys->i_width
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* VOUT_ASPECT_FACTOR ) / p_sys->i_height;
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}
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else p_vout->output.i_aspect = p_sys->i_aspect;
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p_vout->fmt_out.i_sar_num = p_vout->fmt_out.i_sar_den = 1;
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p_vout->fmt_out.i_aspect = p_vout->render.i_aspect = p_vout->output.i_aspect;
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/* Clear the screen */
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memset( p_sys->p_video, 0, p_sys->i_page_size );
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/* Try to initialize 1 direct buffer */
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p_pic = NULL;
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/* Find an empty picture slot */
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for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
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{
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if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
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{
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p_pic = p_vout->p_picture + i_index;
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break;
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}
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}
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/* Allocate the picture */
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if( p_pic == NULL )
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{
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return VLC_EGENERIC;
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}
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/* We know the chroma, allocate a buffer which will be used
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* directly by the decoder */
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p_pic->p->p_pixels = p_vout->p_sys->p_video;
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p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
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p_pic->p->i_lines = p_vout->p_sys->var_info.yres;
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p_pic->p->i_visible_lines = p_vout->p_sys->var_info.yres;
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if( p_vout->p_sys->var_info.xres_virtual )
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{
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p_pic->p->i_pitch = p_vout->p_sys->var_info.xres_virtual
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* p_vout->p_sys->i_bytes_per_pixel;
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}
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else
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{
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p_pic->p->i_pitch = p_vout->p_sys->var_info.xres
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* p_vout->p_sys->i_bytes_per_pixel;
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}
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p_pic->p->i_visible_pitch = p_vout->p_sys->var_info.xres
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* p_vout->p_sys->i_bytes_per_pixel;
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p_pic->i_planes = 1;
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p_pic->i_status = DESTROYED_PICTURE;
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p_pic->i_type = DIRECT_PICTURE;
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PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
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I_OUTPUTPICTURES++;
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* End: terminate framebuffer video thread output method
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*****************************************************************************/
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static void End( vout_thread_t *p_vout )
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{
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/* Clear the screen */
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memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size );
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}
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/*****************************************************************************
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* Destroy: destroy FB video thread output method
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*****************************************************************************
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* Terminate an output method created by Create
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*****************************************************************************/
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static void Destroy( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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CloseDisplay( p_vout );
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if( p_vout->p_sys->b_tty )
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{
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/* Reset the terminal */
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ioctl( p_vout->p_sys->i_tty, VT_SETMODE, &p_vout->p_sys->vt_mode );
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|
/* Remove signal handlers */
|
|
sigaction( SIGUSR1, &p_vout->p_sys->sig_usr1, NULL );
|
|
sigaction( SIGUSR2, &p_vout->p_sys->sig_usr2, NULL );
|
|
|
|
/* Reset the keyboard state */
|
|
tcsetattr( 0, 0, &p_vout->p_sys->old_termios );
|
|
|
|
/* Return to text mode */
|
|
TextMode( p_vout->p_sys->i_tty );
|
|
}
|
|
|
|
/* Destroy structure */
|
|
free( p_vout->p_sys );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Manage: handle FB events
|
|
*****************************************************************************
|
|
* This function should be called regularly by video output thread. It manages
|
|
* console events. It returns a non null value on error.
|
|
*****************************************************************************/
|
|
static int Manage( vout_thread_t *p_vout )
|
|
{
|
|
#if 0
|
|
uint8_t buf;
|
|
|
|
if ( read(0, &buf, 1) == 1)
|
|
{
|
|
switch( buf )
|
|
{
|
|
case 'q':
|
|
vlc_object_kill( p_vout->p_libvlc );
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Size change
|
|
*/
|
|
if( p_vout->i_changes & VOUT_SIZE_CHANGE )
|
|
{
|
|
msg_Dbg( p_vout, "reinitializing framebuffer screen" );
|
|
p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
|
|
|
|
/* Destroy XImages to change their size */
|
|
End( p_vout );
|
|
|
|
/* Recreate XImages. If SysInit failed, the thread can't go on. */
|
|
if( Init( p_vout ) )
|
|
{
|
|
msg_Err( p_vout, "cannot reinit framebuffer screen" );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
/* Clear screen */
|
|
memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size );
|
|
|
|
#if 0
|
|
/* Tell the video output thread that it will need to rebuild YUV
|
|
* tables. This is needed since conversion buffer size may have changed */
|
|
p_vout->i_changes |= VOUT_YUV_CHANGE;
|
|
#endif
|
|
}
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Display: displays previously rendered output
|
|
*****************************************************************************
|
|
* This function send the currently rendered image to FB image, waits until
|
|
* it is displayed and switch the two rendering buffers, preparing next frame.
|
|
*****************************************************************************/
|
|
static void Display( vout_thread_t *p_vout, picture_t *p_pic )
|
|
{
|
|
static int panned=0;
|
|
/* swap the two Y offsets if the drivers supports panning */
|
|
if( p_vout->p_sys->b_pan )
|
|
{
|
|
p_vout->p_sys->var_info.yoffset = 0;
|
|
/*p_vout->p_sys->var_info.yoffset = p_vout->p_sys->var_info.yres; */
|
|
|
|
/* the X offset should be 0, but who knows ...
|
|
* some other app might have played with the framebuffer */
|
|
p_vout->p_sys->var_info.xoffset = 0;
|
|
|
|
if( panned < 0 )
|
|
{
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPAN_DISPLAY, &p_vout->p_sys->var_info );
|
|
panned++;
|
|
}
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
static void SetPalette( vout_thread_t *p_vout, uint16_t *red, uint16_t *green,
|
|
uint16_t *blue, uint16_t *transp )
|
|
{
|
|
struct fb_cmap cmap = { 0, 256, red, green, blue, transp };
|
|
|
|
ioctl( p_vout->p_sys->i_fd, FBIOPUTCMAP, &cmap );
|
|
}
|
|
#endif
|
|
|
|
/* following functions are local */
|
|
|
|
/*****************************************************************************
|
|
* OpenDisplay: initialize framebuffer
|
|
*****************************************************************************/
|
|
static int OpenDisplay( vout_thread_t *p_vout )
|
|
{
|
|
char *psz_device; /* framebuffer device path */
|
|
struct fb_fix_screeninfo fix_info; /* framebuffer fix information */
|
|
|
|
/* Open framebuffer device */
|
|
if( !(psz_device = config_GetPsz( p_vout, FB_DEV_VAR )) )
|
|
{
|
|
msg_Err( p_vout, "don't know which fb device to open" );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
p_vout->p_sys->i_fd = open( psz_device, O_RDWR);
|
|
if( p_vout->p_sys->i_fd == -1 )
|
|
{
|
|
msg_Err( p_vout, "cannot open %s (%m)", psz_device );
|
|
free( psz_device );
|
|
return VLC_EGENERIC;
|
|
}
|
|
free( psz_device );
|
|
psz_device = NULL;
|
|
|
|
/* Get framebuffer device information */
|
|
if( ioctl( p_vout->p_sys->i_fd,
|
|
FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
|
|
{
|
|
msg_Err( p_vout, "cannot get fb info (%m)" );
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
memcpy( &p_vout->p_sys->old_info, &p_vout->p_sys->var_info,
|
|
sizeof( struct fb_var_screeninfo ) );
|
|
|
|
/* Set some attributes */
|
|
p_vout->p_sys->var_info.activate = FB_ACTIVATE_NXTOPEN;
|
|
p_vout->p_sys->var_info.xoffset = 0;
|
|
p_vout->p_sys->var_info.yoffset = 0;
|
|
|
|
if( ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->var_info ) )
|
|
{
|
|
msg_Err( p_vout, "cannot set fb info (%m)" );
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
/* Get some information again, in the definitive configuration */
|
|
if( ioctl( p_vout->p_sys->i_fd, FBIOGET_FSCREENINFO, &fix_info )
|
|
|| ioctl( p_vout->p_sys->i_fd,
|
|
FBIOGET_VSCREENINFO, &p_vout->p_sys->var_info ) )
|
|
{
|
|
msg_Err( p_vout, "cannot get additional fb info (%m)" );
|
|
|
|
/* Restore fb config */
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->old_info );
|
|
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
/* FIXME: if the image is full-size, it gets cropped on the left
|
|
* because of the xres / xres_virtual slight difference */
|
|
msg_Dbg( p_vout, "%ix%i (virtual %ix%i)",
|
|
p_vout->p_sys->var_info.xres, p_vout->p_sys->var_info.yres,
|
|
p_vout->p_sys->var_info.xres_virtual,
|
|
p_vout->p_sys->var_info.yres_virtual );
|
|
|
|
p_vout->p_sys->i_height = p_vout->p_sys->var_info.yres;
|
|
p_vout->p_sys->i_width = p_vout->p_sys->var_info.xres_virtual
|
|
? p_vout->p_sys->var_info.xres_virtual
|
|
: p_vout->p_sys->var_info.xres;
|
|
|
|
p_vout->p_sys->p_palette = NULL;
|
|
p_vout->p_sys->b_pan = ( fix_info.ypanstep || fix_info.ywrapstep );
|
|
|
|
switch( p_vout->p_sys->var_info.bits_per_pixel )
|
|
{
|
|
case 8:
|
|
p_vout->p_sys->p_palette = malloc( 8 * 256 * sizeof( uint16_t ) );
|
|
if( !p_vout->p_sys->p_palette )
|
|
{
|
|
msg_Err( p_vout, "out of memory" );
|
|
|
|
/* Restore fb config */
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->old_info );
|
|
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_ENOMEM;
|
|
}
|
|
p_vout->p_sys->fb_cmap.start = 0;
|
|
p_vout->p_sys->fb_cmap.len = 256;
|
|
p_vout->p_sys->fb_cmap.red = p_vout->p_sys->p_palette;
|
|
p_vout->p_sys->fb_cmap.green = p_vout->p_sys->p_palette + 256 * sizeof( uint16_t );
|
|
p_vout->p_sys->fb_cmap.blue = p_vout->p_sys->p_palette + 2 * 256 * sizeof( uint16_t );
|
|
p_vout->p_sys->fb_cmap.transp = p_vout->p_sys->p_palette + 3 * 256 * sizeof( uint16_t );
|
|
|
|
/* Save the colormap */
|
|
ioctl( p_vout->p_sys->i_fd, FBIOGETCMAP, &p_vout->p_sys->fb_cmap );
|
|
|
|
p_vout->p_sys->i_bytes_per_pixel = 1;
|
|
break;
|
|
|
|
case 15:
|
|
case 16:
|
|
p_vout->p_sys->i_bytes_per_pixel = 2;
|
|
break;
|
|
|
|
case 24:
|
|
p_vout->p_sys->i_bytes_per_pixel = 3;
|
|
break;
|
|
|
|
case 32:
|
|
p_vout->p_sys->i_bytes_per_pixel = 4;
|
|
break;
|
|
|
|
default:
|
|
msg_Err( p_vout, "screen depth %d is not supported",
|
|
p_vout->p_sys->var_info.bits_per_pixel );
|
|
|
|
/* Restore fb config */
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->old_info );
|
|
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
p_vout->p_sys->i_page_size = p_vout->p_sys->i_width *
|
|
p_vout->p_sys->i_height * p_vout->p_sys->i_bytes_per_pixel;
|
|
|
|
/* Map a framebuffer at the beginning */
|
|
p_vout->p_sys->p_video = mmap( 0, p_vout->p_sys->i_page_size,
|
|
PROT_READ | PROT_WRITE, MAP_SHARED,
|
|
p_vout->p_sys->i_fd, 0 );
|
|
|
|
if( p_vout->p_sys->p_video == ((void*)-1) )
|
|
{
|
|
msg_Err( p_vout, "cannot map video memory (%m)" );
|
|
|
|
if( p_vout->p_sys->var_info.bits_per_pixel == 8 )
|
|
{
|
|
free( p_vout->p_sys->p_palette );
|
|
p_vout->p_sys->p_palette = NULL;
|
|
}
|
|
|
|
/* Restore fb config */
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->old_info );
|
|
|
|
close( p_vout->p_sys->i_fd );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
msg_Dbg( p_vout, "framebuffer type=%d, visual=%d, ypanstep=%d, "
|
|
"ywrap=%d, accel=%d", fix_info.type, fix_info.visual,
|
|
fix_info.ypanstep, fix_info.ywrapstep, fix_info.accel );
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* CloseDisplay: terminate FB video thread output method
|
|
*****************************************************************************/
|
|
static void CloseDisplay( vout_thread_t *p_vout )
|
|
{
|
|
/* Clear display */
|
|
memset( p_vout->p_sys->p_video, 0, p_vout->p_sys->i_page_size );
|
|
|
|
/* Restore palette */
|
|
if( p_vout->p_sys->var_info.bits_per_pixel == 8 )
|
|
{
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUTCMAP, &p_vout->p_sys->fb_cmap );
|
|
free( p_vout->p_sys->p_palette );
|
|
p_vout->p_sys->p_palette = NULL;
|
|
}
|
|
|
|
/* Restore fb config */
|
|
ioctl( p_vout->p_sys->i_fd,
|
|
FBIOPUT_VSCREENINFO, &p_vout->p_sys->old_info );
|
|
|
|
/* Close fb */
|
|
close( p_vout->p_sys->i_fd );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SwitchDisplay: VT change signal handler
|
|
*****************************************************************************
|
|
* This function activates or deactivates the output of the thread. It is
|
|
* called by the VT driver, on terminal change.
|
|
*****************************************************************************/
|
|
static void SwitchDisplay(int i_signal)
|
|
{
|
|
#if 0
|
|
vout_thread_t *p_vout;
|
|
|
|
vlc_mutex_lock( &p_vout_bank->lock );
|
|
|
|
/* XXX: only test the first video output */
|
|
if( p_vout_bank->i_count )
|
|
{
|
|
p_vout = p_vout_bank->pp_vout[0];
|
|
|
|
switch( i_signal )
|
|
{
|
|
case SIGUSR1: /* vt has been released */
|
|
p_vout->b_active = 0;
|
|
ioctl( p_sys->i_tty, VT_RELDISP, 1 );
|
|
break;
|
|
case SIGUSR2: /* vt has been acquired */
|
|
p_vout->b_active = 1;
|
|
ioctl( p_sys->i_tty, VT_RELDISP, VT_ACTIVATE );
|
|
/* handle blanking */
|
|
vlc_mutex_lock( &p_vout->change_lock );
|
|
p_vout->i_changes |= VOUT_SIZE_CHANGE;
|
|
vlc_mutex_unlock( &p_vout->change_lock );
|
|
break;
|
|
}
|
|
}
|
|
|
|
vlc_mutex_unlock( &p_vout_bank->lock );
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* TextMode and GfxMode : switch tty to text/graphic mode
|
|
*****************************************************************************
|
|
* These functions toggle the tty mode.
|
|
*****************************************************************************/
|
|
static void TextMode( int i_tty )
|
|
{
|
|
/* return to text mode */
|
|
if( -1 == ioctl(i_tty, KDSETMODE, KD_TEXT) )
|
|
{
|
|
/*msg_Err( p_vout, "failed ioctl KDSETMODE KD_TEXT" );*/
|
|
}
|
|
}
|
|
|
|
static void GfxMode( int i_tty )
|
|
{
|
|
/* switch to graphic mode */
|
|
if( -1 == ioctl(i_tty, KDSETMODE, KD_GRAPHICS) )
|
|
{
|
|
/*msg_Err( p_vout, "failed ioctl KDSETMODE KD_GRAPHICS" );*/
|
|
}
|
|
}
|