RedAlert/VQ/VQM32/VIDEO.H

/*
**	Command & Conquer Red Alert(tm)
**	Copyright 2025 Electronic Arts Inc.
**
**	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 3 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, see <http://www.gnu.org/licenses/>.
*/

#ifndef VQMVIDEO_H
#define VQMVIDEO_H
/****************************************************************************
*
*        C O N F I D E N T I A L -- W E S T W O O D  S T U D I O S
*
*----------------------------------------------------------------------------
*
* FILE
*     Video.h (32-Bit protected mode)
*
* DESCRIPTION
*     Video manager definitions.
*
* PROGRAMMER
*     Denzil E. Long, Jr.
*
* DATE
*     Febuary 3, 1995
*
****************************************************************************/

#include <vqm32\vesavid.h>

/*---------------------------------------------------------------------------
 * VGA video modes
 *-------------------------------------------------------------------------*/

#define	TEXT 0x02
#define	MCGA 0x13
#define	XMODE_320X200 0x50
#define	XMODE_320X240 0x51
#define	XMODE_320X400 0x52
#define	XMODE_320X480 0x53
#define	XMODE_360X400 0x54
#define	XMODE_360X480 0x55

#define	XMODE_MIN 0x50
#define	XMODE_MAX 0x55

/*---------------------------------------------------------------------------
 * Structure definitions
 *-------------------------------------------------------------------------*/

/* DisplayInfo - Information about the current display.
 *
 * Mode     - Mode identification.
 * XRes     - X resolution of mode.
 * YRes     - Y resolution of mode.
 * VBIbit   - Polarity of vertical blank bit.
 * Extended - Pointer to mode specific data structure.
 */
typedef struct _DisplayInfo {
	long Mode;
	long XRes;
	long YRes;
	long VBIbit;
	void *Extended;
} DisplayInfo;

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

DisplayInfo *SetVideoMode(long mode);
DisplayInfo *GetDisplayInfo(void);
long TestVBIBit(void);
long GetVBIBit(void);

void SetupXPaging(void);
void FlipXPage(void);
unsigned char *GetXHidPage(void);
unsigned char *GetXSeenPage(void);
void DisplayXPage(long page);

#ifdef __cplusplus
extern "C" {
#endif

void cdecl WaitNoVB(short vbibit);
void cdecl WaitVB(short vbibit);
void cdecl ClearVRAM(void);
long cdecl SetXMode(long mode);
void cdecl ClearXMode(void);
void cdecl ShowXPage(unsigned long StartOffset);
void cdecl Xmode_BufferCopy_320x200(void *buff, void *screen);
void cdecl Xmode_Blit(void *buffer, void *screen, long imgwidth, long imgheight);
void cdecl MCGA_BufferCopy(unsigned char *buffer, unsigned char *dummy);
void cdecl MCGA_Blit(unsigned char *buffer, unsigned char *screen,
		long imgwidth, long imgheight);

#ifdef __cplusplus
}
#endif

#endif /* VQMVIDEO_H */