Commit 45cb9def authored by Sam Hocevar's avatar Sam Hocevar

* modules/video_output/caca.c: color ASCII art video output using libcaca.

parent dd6bbcec
SOURCES_aa = aa.c
SOURCES_caca = caca.c
SOURCES_fb = fb.c
SOURCES_ggi = ggi.c
SOURCES_glide = glide.c
......
/*****************************************************************************
* caca.c: Color ASCII Art video output plugin using libcaca
*****************************************************************************
* Copyright (C) 2003 VideoLAN
* $Id: caca.c,v 1.1 2003/11/16 22:29:33 sam Exp $
*
* Authors: Sam Hocevar <sam@zoy.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <errno.h> /* ENOMEM */
#include <stdlib.h> /* free() */
#include <string.h> /* strerror() */
#include <caca.h>
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/intf.h>
#include <vlc_keys.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static int Init ( vout_thread_t * );
static void End ( vout_thread_t * );
static int Manage ( vout_thread_t * );
static void Render ( vout_thread_t *, picture_t * );
static void Display ( vout_thread_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("color ASCII art video output") );
set_capability( "video output", 12 );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* Create: allocates libcaca video output thread
*****************************************************************************
* This function initializes libcaca vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
if( caca_init() )
{
msg_Err( p_vout, "cannot initialize libcaca" );
return VLC_EGENERIC;
}
caca_set_dithering( CACA_DITHER_RANDOM );
p_vout->pf_init = Init;
p_vout->pf_end = End;
p_vout->pf_manage = Manage;
p_vout->pf_render = Render;
p_vout->pf_display = Display;
return VLC_SUCCESS;
}
/*****************************************************************************
* Init: initialize libcaca video output thread
*****************************************************************************/
static int Init( vout_thread_t *p_vout )
{
int i_index;
picture_t *p_pic = NULL;
I_OUTPUTPICTURES = 0;
p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
p_vout->output.i_width = p_vout->render.i_width;
p_vout->output.i_height = p_vout->render.i_height;
p_vout->output.i_aspect = p_vout->render.i_aspect;
p_vout->output.i_rmask = 0x00ff0000;
p_vout->output.i_gmask = 0x0000ff00;
p_vout->output.i_bmask = 0x000000ff;
/* Find an empty picture slot */
for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
{
if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
{
p_pic = p_vout->p_picture + i_index;
break;
}
}
if( p_pic == NULL )
{
return VLC_EGENERIC;
}
/* Allocate the picture */
p_pic->p->i_lines = p_vout->output.i_height;
p_pic->p->i_pitch = 4 * ((p_vout->output.i_width + 15) & ~15);
p_pic->p->i_pixel_pitch = 4;
p_pic->p->i_visible_pitch = 4 * p_vout->output.i_width;
p_pic->i_planes = 1;
p_pic->p->p_pixels = malloc( p_pic->p->i_pitch * p_pic->p->i_lines );
p_pic->i_status = DESTROYED_PICTURE;
p_pic->i_type = DIRECT_PICTURE;
PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
I_OUTPUTPICTURES++;
return VLC_SUCCESS;
}
/*****************************************************************************
* End: terminate libcaca video output thread
*****************************************************************************/
static void End( vout_thread_t *p_vout )
{
return;
}
/*****************************************************************************
* Destroy: destroy libcaca video output thread
*****************************************************************************
* Terminate an output method created by AaCreateOutputMethod
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
caca_end();
}
/*****************************************************************************
* Manage: handle libcaca 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 )
{
int key;
vlc_value_t val;
while(( key = caca_get_key() ))
{
switch( key )
{
case 'q':
val.i_int = KEY_MODIFIER_CTRL | 'q';
break;
case ' ':
val.i_int = KEY_SPACE;
break;
default:
continue;
}
var_Set( p_vout->p_vlc, "key-pressed", val );
}
return VLC_SUCCESS;
}
/*****************************************************************************
* Render: render previously calculated output
*****************************************************************************/
static void Render( vout_thread_t *p_vout, picture_t *p_pic )
{
caca_clear();
caca_blit( 0, 0, caca_get_width() - 1, caca_get_height() - 1,
p_pic->p->p_pixels,
p_vout->output.i_width, p_vout->output.i_height );
}
/*****************************************************************************
* Display: displays previously rendered output
*****************************************************************************/
static void Display( vout_thread_t *p_vout, picture_t *p_pic )
{
caca_refresh();
}
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