--- /dev/null
+/*****************************************************************************
+ * svgalib.c : SVGAlib plugin for vlc
+ *****************************************************************************
+ * Copyright (C) 2002 VideoLAN
+ * $Id: svgalib.c,v 1.1 2002/08/21 15:10:33 sam Exp $
+ *
+ * Authors: Samuel 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 <stdlib.h>
+
+#include <vlc/vlc.h>
+#include <vlc/vout.h>
+
+#include <vga.h>
+#include <vgagl.h>
+#include <vgakeyboard.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 Display ( vout_thread_t *, picture_t * );
+
+static void SetPalette( vout_thread_t *, u16 *, u16 *, u16 * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("SVGAlib module") );
+ set_capability( "video output", 0 );
+ set_callbacks( Create, Destroy );
+vlc_module_end();
+
+/*****************************************************************************
+ * vout_sys_t: video output descriptor
+ *****************************************************************************
+ * This structure is part of the video output thread descriptor.
+ * It describes the SVGAlib specific properties of an output thread.
+ *****************************************************************************/
+struct vout_sys_t
+{
+ int i_vgamode;
+};
+
+/*****************************************************************************
+ * Create: allocates video thread
+ *****************************************************************************
+ * This function allocates and initializes a vout method.
+ *****************************************************************************/
+static int Create( vlc_object_t *p_this )
+{
+ vout_thread_t *p_vout = (vout_thread_t *)p_this;
+
+ /* Allocate instance and initialize some members */
+ p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
+ if( p_vout->p_sys == NULL )
+ {
+ return VLC_ENOMEM;
+ }
+
+ /* FIXME: find a way to test for SVGAlib availability. We cannot call
+ * vga_init from here because it needs to be closed from the same thread
+ * and we might give away the video output to another thread. Bah, it
+ * doesn't matter anyway ... SVGAlib is being an UGLY DIRTY PIG and calls
+ * atexit() and exit() so what can we do? */
+
+ p_vout->pf_init = Init;
+ p_vout->pf_end = End;
+ p_vout->pf_manage = Manage;
+ p_vout->pf_render = NULL;
+ p_vout->pf_display = Display;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Init: initialize video thread
+ *****************************************************************************/
+static int Init( vout_thread_t *p_vout )
+{
+ int i_index;
+ picture_t *p_pic;
+
+ I_OUTPUTPICTURES = 0;
+
+ /* SVGAlib shut up! */
+ vga_disabledriverreport();
+
+ /* We cannot call vga_init() in Create() because it has to be run
+ * from the same thread as the other vga calls. */
+ vga_init();
+
+ /* Check that we have a 8bpp mode available */
+ p_vout->p_sys->i_vgamode = vga_getdefaultmode();
+ if( p_vout->p_sys->i_vgamode == -1
+ || vga_getmodeinfo(p_vout->p_sys->i_vgamode)->bytesperpixel != 1 )
+ {
+ p_vout->p_sys->i_vgamode = G320x200x256;
+ }
+
+ if( !vga_hasmode( p_vout->p_sys->i_vgamode ) )
+ {
+ msg_Err( p_vout, "mode %i not available", p_vout->p_sys->i_vgamode );
+ return VLC_EGENERIC;
+ }
+
+ vga_setmode( p_vout->p_sys->i_vgamode );
+ gl_setcontextvga( p_vout->p_sys->i_vgamode );
+ gl_enableclipping();
+
+ if( keyboard_init() )
+ {
+ msg_Err( p_vout, "could not initialize keyboard" );
+ vga_setmode( TEXT );
+ return VLC_EGENERIC;
+ }
+
+ /* Just in case */
+ keyboard_translatekeys( TRANSLATE_CURSORKEYS |
+ TRANSLATE_KEYPADENTER |
+ TRANSLATE_DIAGONAL );
+
+ /* Initialize the output structure: RGB with square pixels, whatever
+ * the input format is, since it's the only format we know */
+ p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
+ p_vout->output.pf_setpalette = SetPalette;
+ p_vout->output.i_width = vga_getxdim();
+ p_vout->output.i_height = vga_getydim();
+ p_vout->output.i_aspect = p_vout->output.i_width
+ * VOUT_ASPECT_FACTOR / p_vout->output.i_height;
+
+ /* Try to initialize 1 direct buffer */
+ p_pic = NULL;
+
+ /* 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;
+ }
+ }
+
+ /* Allocate the picture */
+ if( p_pic == NULL )
+ {
+ return VLC_SUCCESS;
+ }
+
+ vout_AllocatePicture( p_vout, p_pic, p_vout->output.i_width,
+ p_vout->output.i_height,
+ p_vout->output.i_chroma );
+
+ if( p_pic->i_planes == 0 )
+ {
+ return VLC_SUCCESS;
+ }
+
+ 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 video thread
+ *****************************************************************************/
+static void End( vout_thread_t *p_vout )
+{
+ keyboard_close();
+ vga_clear();
+ vga_setmode( TEXT );
+}
+
+/*****************************************************************************
+ * Destroy: destroy video thread
+ *****************************************************************************
+ * Terminate an output method created by Create
+ *****************************************************************************/
+static void Destroy( vlc_object_t *p_this )
+{
+ vout_thread_t *p_vout = (vout_thread_t *)p_this;
+
+ /* Destroy structure */
+ free( p_vout->p_sys );
+}
+
+/*****************************************************************************
+ * Manage: handle SVGAlib 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 )
+{
+ keyboard_update();
+
+ if( keyboard_keypressed(SCANCODE_ESCAPE)
+ || keyboard_keypressed(SCANCODE_Q ) )
+ {
+ p_vout->p_vlc->b_die = VLC_TRUE;
+ }
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Display: displays previously rendered output
+ *****************************************************************************
+ * This function sends the currently rendered image to the VGA card.
+ *****************************************************************************/
+static void Display( vout_thread_t *p_vout, picture_t *p_pic )
+{
+ gl_putbox( 0, 0, p_vout->output.i_width,
+ p_vout->output.i_height, p_pic->p->p_pixels );
+}
+
+/*****************************************************************************
+ * SetPalette: set a 8bpp palette
+ *****************************************************************************
+ * TODO: support 8 bits clut (for Mach32 cards and others).
+ *****************************************************************************/
+static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
+{
+ int i = 256;
+
+ while( i-- )
+ {
+ vga_setpalette( i, red[i]>>10, green[i]>>10, blue[i]>>10 );
+ }
+}
+
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