--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/xbios/SDL_xbios.h	Sun Feb 17 19:54:28 2002 +0000
@@ -0,0 +1,127 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+#ifndef _SDL_xbios_h
+#define _SDL_xbios_h
+
+#include "SDL_types.h"
+#include "SDL_sysvideo.h"
+
+/* Hidden "this" pointer for the video functions */
+#define _THIS	SDL_VideoDevice *this
+
+/* TT video modes:	2
+   Falcon RVB:		16 (could be *2 by adding PAL/NTSC modes)
+   Falcon VGA:		6
+   ST low:		1
+*/
+#define SDL_NUMMODES 16
+
+typedef struct
+{
+	Uint16 number;		/* Video mode number */
+	Uint16 width;		/* Size */	
+	Uint16 height;
+	Uint16 depth;		/* bits per plane */
+	SDL_bool doubleline;	/* Double the lines ? */
+} xbiosmode_t;
+
+/* Private display data */
+#define NUM_MODELISTS	2		/* 8 and 16 bits-per-pixel */
+
+struct SDL_PrivateVideoData {
+	long cookie_vdo;
+	int old_video_mode;				/* Old video mode before entering SDL */
+	void *old_video_base;			/* Old pointer to screen buffer */
+	void *old_palette;				/* Old palette */
+	Uint32 old_num_colors;			/* Nb of colors in saved palette */
+	int num_modes;					/* Number of xbios video modes */
+	xbiosmode_t	*mode_list;			/* List of xbios video modes */
+
+	void *screens[2];		/* Pointers to aligned screen buffer */
+	void *screensmem[2];	/* Pointers to screen buffer */
+	void *shadowscreen;		/* Shadow screen for c2p conversion */
+	int doubleline;			/* Double line mode ? */
+	int frame_number;		/* Number of frame for double buffer */
+	int pitch;				/* Destination line width for C2P */
+	int width, height;		/* Screen size for centered C2P */
+
+	SDL_Rect *SDL_modelist[NUM_MODELISTS][SDL_NUMMODES+1];
+	xbiosmode_t *videomodes[NUM_MODELISTS][SDL_NUMMODES+1];
+};
+
+/* _VDO cookie values */
+enum {
+	VDO_ST=0,
+	VDO_STE,
+	VDO_TT,
+	VDO_F30
+};
+
+/* Monitor types */
+enum {
+	MONITOR_MONO=0,
+	MONITOR_TV,
+	MONITOR_VGA,
+	MONITOR_RGB
+};
+
+/* EgetShift masks */
+#define ES_BANK		0x000f
+#define ES_MODE		0x0700
+#define ES_GRAY		0x1000
+#define ES_SMEAR	0x8000
+
+/* TT shifter modes */
+#define ST_LOW	0x0000
+#define ST_MED	0x0100
+#define ST_HIGH	0x0200
+#define TT_LOW	0x0700
+#define TT_MED	0x0300
+#define TT_HIGH	0x0600
+
+/* Hidden structure -> variables names */
+#define SDL_modelist		(this->hidden->SDL_modelist)
+#define XBIOS_mutex		    (this->hidden->mutex)
+#define XBIOS_cvdo		    (this->hidden->cookie_vdo)
+#define XBIOS_oldpalette	(this->hidden->old_palette)
+#define XBIOS_oldnumcol		(this->hidden->old_num_colors)
+#define XBIOS_oldvbase		(this->hidden->old_video_base)
+#define XBIOS_oldvmode		(this->hidden->old_video_mode)
+#define XBIOS_nummodes		(this->hidden->num_modes)
+#define XBIOS_modelist		(this->hidden->mode_list)
+#define XBIOS_screens		(this->hidden->screens)
+#define XBIOS_screensmem	(this->hidden->screensmem)
+#define XBIOS_shadowscreen	(this->hidden->shadowscreen)
+#define XBIOS_videomodes	(this->hidden->videomodes)
+#define XBIOS_doubleline	(this->hidden->doubleline)
+#define XBIOS_fbnum			(this->hidden->frame_number)
+#define XBIOS_pitch			(this->hidden->pitch)
+#define XBIOS_width			(this->hidden->width)
+#define XBIOS_height		(this->hidden->height)
+
+#endif /* _SDL_xbios_h */