[sdl_omap.git] / src / video / xbios / SDL_xbios.h

/*
    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 Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 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
    Lesser General Public License for more details.

    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

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_xbios_h
#define _SDL_xbios_h

#include "SDL_stdinc.h"
#include "../SDL_sysvideo.h"

/* Hidden "this" pointer for the video functions */
#define _THIS	SDL_VideoDevice *this

#define XBIOSMODE_DOUBLELINE (1<<0)
#define XBIOSMODE_C2P (1<<1)

typedef struct
{
	Uint16 number;		/* Video mode number */
	Uint16 width;		/* Size */	
	Uint16 height;
	Uint16 depth;		/* bits per plane */
	Uint16 flags;
} xbiosmode_t;

/* Private display data */
#define NUM_MODELISTS	4		/* 8, 16, 24, and 32 bits-per-pixel */

struct SDL_PrivateVideoData {
	long cookie_vdo;
	long 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 */

	void *screens[2];		/* Pointers to aligned screen buffer */
	void *screensmem[2];	/* Pointers to screen buffer */
	void *shadowscreen;		/* Shadow screen for c2p conversion */
	int frame_number;		/* Number of frame for double buffer */
	int pitch;				/* Destination line width for C2P */

	SDL_bool centscreen;	/* Centscreen extension present ? */

	xbiosmode_t *current;	/* Current set mode */
	int SDL_nummodes[NUM_MODELISTS];
	SDL_Rect **SDL_modelist[NUM_MODELISTS];
	xbiosmode_t **SDL_xbiosmode[NUM_MODELISTS];
};

/* _VDO cookie values */
enum {
	VDO_ST=0,
	VDO_STE,
	VDO_TT,
	VDO_F30,
	VDO_MILAN
};

/* Monitor types */
enum {
	MONITOR_MONO=0,
	MONITOR_TV,
	MONITOR_VGA,
	MONITOR_RGB
};

/* EgetShift masks */
#define ES_MODE		0x0700

/* TT shifter modes */
#ifndef ST_LOW
#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

/* Hidden structure -> variables names */
#define SDL_nummodes		(this->hidden->SDL_nummodes)
#define SDL_modelist		(this->hidden->SDL_modelist)
#define SDL_xbiosmode		(this->hidden->SDL_xbiosmode)
#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_screens		(this->hidden->screens)
#define XBIOS_screensmem	(this->hidden->screensmem)
#define XBIOS_shadowscreen	(this->hidden->shadowscreen)
#define XBIOS_fbnum			(this->hidden->frame_number)
#define XBIOS_pitch			(this->hidden->pitch)
#define XBIOS_centscreen	(this->hidden->centscreen)
#define XBIOS_current		(this->hidden->current)

/*--- Functions prototypes ---*/

void SDL_XBIOS_AddMode(_THIS, int actually_add, const xbiosmode_t *modeinfo);

#endif /* _SDL_xbios_h */
Commit	Line	Data
e14743d1	1	/*
	2	SDL - Simple DirectMedia Layer
	3	Copyright (C) 1997-2009 Sam Lantinga
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with this library; if not, write to the Free Software
	17	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	Sam Lantinga
	20	slouken@libsdl.org
	21	*/
	22	#include "SDL_config.h"
	23
	24	#ifndef _SDL_xbios_h
	25	#define _SDL_xbios_h
	26
	27	#include "SDL_stdinc.h"
	28	#include "../SDL_sysvideo.h"
	29
	30	/* Hidden "this" pointer for the video functions */
	31	#define _THIS SDL_VideoDevice *this
	32
	33	#define XBIOSMODE_DOUBLELINE (1<<0)
	34	#define XBIOSMODE_C2P (1<<1)
	35
	36	typedef struct
	37	{
	38	Uint16 number; /* Video mode number */
	39	Uint16 width; /* Size */
	40	Uint16 height;
	41	Uint16 depth; /* bits per plane */
	42	Uint16 flags;
	43	} xbiosmode_t;
	44
	45	/* Private display data */
	46	#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
	47
	48	struct SDL_PrivateVideoData {
	49	long cookie_vdo;
	50	long old_video_mode; /* Old video mode before entering SDL */
	51	void old_video_base; / Old pointer to screen buffer */
	52	void old_palette; / Old palette */
	53	Uint32 old_num_colors; /* Nb of colors in saved palette */
	54
	55	void screens[2]; / Pointers to aligned screen buffer */
	56	void screensmem[2]; / Pointers to screen buffer */
	57	void shadowscreen; / Shadow screen for c2p conversion */
	58	int frame_number; /* Number of frame for double buffer */
	59	int pitch; /* Destination line width for C2P */
	60
	61	SDL_bool centscreen; /* Centscreen extension present ? */
	62
	63	xbiosmode_t current; / Current set mode */
	64	int SDL_nummodes[NUM_MODELISTS];
65	SDL_Rect **SDL_modelist[NUM_MODELISTS];
66	xbiosmode_t **SDL_xbiosmode[NUM_MODELISTS];
67	};
68
69	/* _VDO cookie values */
70	enum {
71	VDO_ST=0,
72	VDO_STE,
73	VDO_TT,
74	VDO_F30,
75	VDO_MILAN
76	};
77
78	/* Monitor types */
79	enum {
80	MONITOR_MONO=0,
81	MONITOR_TV,
82	MONITOR_VGA,
83	MONITOR_RGB
84	};
85
86	/* EgetShift masks */
87	#define ES_MODE 0x0700
88
89	/* TT shifter modes */
90	#ifndef ST_LOW
91	#define ST_LOW 0x0000
92	#define ST_MED 0x0100
93	#define ST_HIGH 0x0200
94	#define TT_LOW 0x0700
95	#define TT_MED 0x0300
96	#define TT_HIGH 0x0600
97	#endif
98
99	/* Hidden structure -> variables names */
100	#define SDL_nummodes (this->hidden->SDL_nummodes)
101	#define SDL_modelist (this->hidden->SDL_modelist)
102	#define SDL_xbiosmode (this->hidden->SDL_xbiosmode)
103	#define XBIOS_mutex (this->hidden->mutex)
104	#define XBIOS_cvdo (this->hidden->cookie_vdo)
105	#define XBIOS_oldpalette (this->hidden->old_palette)
106	#define XBIOS_oldnumcol (this->hidden->old_num_colors)
107	#define XBIOS_oldvbase (this->hidden->old_video_base)
108	#define XBIOS_oldvmode (this->hidden->old_video_mode)
109	#define XBIOS_screens (this->hidden->screens)
110	#define XBIOS_screensmem (this->hidden->screensmem)
111	#define XBIOS_shadowscreen (this->hidden->shadowscreen)
112	#define XBIOS_fbnum (this->hidden->frame_number)
113	#define XBIOS_pitch (this->hidden->pitch)
114	#define XBIOS_centscreen (this->hidden->centscreen)
115	#define XBIOS_current (this->hidden->current)
116
117	/--- Functions prototypes ---/
118
119	void SDL_XBIOS_AddMode(_THIS, int actually_add, const xbiosmode_t *modeinfo);
120
121	#endif /* _SDL_xbios_h */