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SDL_xbios.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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#ifndef _SDL_xbios_h
#define _SDL_xbios_h
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#include "SDL_stdinc.h"
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#include "../SDL_sysvideo.h"
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typedef struct SDL_VideoData
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long cookie_vdo; /* _VDO cookie */
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Uint16 old_modecode; /* Current video mode */
void *old_vbase; /* Current pointer to video RAM */
int old_numcol; /* Number of colors in saved palette */
Uint32 old_palette[256]; /* Buffer to save current palette */
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#if 0
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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_bool centscreen; /* Centscreen extension present ? */
SDL_Rect *SDL_modelist[NUM_MODELISTS][SDL_NUMMODES + 1];
xbiosmode_t *videomodes[NUM_MODELISTS][SDL_NUMMODES + 1];
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} SDL_VideoData;
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/* _VDO cookie values */
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enum
{
VDO_ST = 0,
VDO_STE,
VDO_TT,
VDO_F30
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};
/* Monitor types */
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enum
{
MONITOR_MONO = 0,
MONITOR_TV,
MONITOR_VGA,
MONITOR_RGB
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};
/* 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
#endif /* _SDL_xbios_h */
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/* vi: set ts=4 sw=4 expandtab: */