/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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
*/
#include "SDL_config.h"

/*
	ScreenBlaster 3 definitions

	Patrice Mandin
*/

#ifndef _SDL_xbios_sb3_h_
#define _SDL_xbios_sb3_h_

/*--- Defines ---*/

#ifndef C_SCPN
#define C_SCPN 0x5343504EL
#endif

#define SCPN_DEV_1BPP	0
#define SCPN_DEV_2BPP	1
#define SCPN_DEV_4BPP	2
#define SCPN_DEV_8BPP	3
#define SCPN_DEV_16BPP	4

extern const int SDL_XBIOS_scpn_planes_device[];

/*--- Types ---*/

typedef struct
{
    unsigned short virtual_width;       /* Virtual screen width */
    unsigned short virtual_height;      /* Virtual screen height */
    unsigned short visible_width;       /* Visible width */
    unsigned short visible_height;      /* Visible height */
    unsigned short h_pos;       /* Horizontal position in virtual screen */
    unsigned short v_pos;       /* Vertical position in virtual screen */
    unsigned short dummy;
    unsigned long size;         /* Size of screen in bytes */
    unsigned short device;      /* Device number to find planes = getRez() */
    /* = Index in scpn_planes_device[] */
} __attribute__ ((packed)) scpn_screeninfo_t;

typedef struct
{
    unsigned long magic;        /* just a BRA assembler jump */
    unsigned short version;
    void *dummy1;
    unsigned short ptsout0_1;
    unsigned short ptsout0_2;
    unsigned short dummy3;
    unsigned char date[8];      /* Date of program build */
    unsigned char asm_string[30];       /* 10 times the 'ASM' string */
    unsigned short dummy4;
    scpn_screeninfo_t *screen_info;
    unsigned short dummy6;
} __attribute__ ((packed)) scpn_cookie_t;

/*--- Function prototypes ---*/

int SDL_XBIOS_SB3Usable(scpn_cookie_t * cookie_scpn);

void SDL_XBIOS_SB3Init(_THIS, scpn_cookie_t * cookie_scpn);

#endif /* _SDL_xbios_sb3_h_ */
/* vi: set ts=4 sw=4 expandtab: */