Category : C Source Code
Archive   : SVGAKT31.ZIP
Filename : SVGA256.H

/****************************************************************************
*
* SuperVGA Test Kit
*
* Copyright (C) 1993 Kendall Bennett.
* All rights reserved.
*
* Filename: $RCSfile: svga256.h $
* Version: $Revision: 1.1 $
*
* Language: ANSI C
* Environment: IBM PC (MS DOS)
*
* Description: Header file for the small 256 color SuperVGA test library.
* This library provides a simplified interface to the
* SuperVGA routines in the test kit to be called from C.
*
* NOTE: This library only works in the large model.
*
* $Id: svga256.h 1.1 1993/03/03 10:27:59 kjb Exp $
*
* Revision History:
* -----------------
*
* $Log: svga256.h $
* Revision 1.1 1993/03/03 10:27:59 kjb
* Initial revision
*
****************************************************************************/

#ifndef __SVGA256_H
#define __SVGA256_H

#ifndef __DRIVERS_H
#include "drivers.h"
#endif

/*--------------------------- Global Variables ----------------------------*/

extern int maxx,maxy; /* Maximum coordinate values */
extern int maxpage; /* Maximum video page number */
extern int bytesperline; /* Bytes in a logical scanline */
extern bool twobanks; /* True if separate banks available */
extern bool extendedflipping; /* True if extended page flipping */
extern bool _VESAFirst; /* Check for VESA SuperVGA's first */
extern bool _ignoreSVGA; /* Ignore SuperVGA adapters */
extern int *modeList; /* List of available video modes */

/*------------------------- Function Prototypes ---------------------------*/

#ifdef __cplusplus
extern "C" { /* Use "C" linkage when in C++ mode */
#endif

/* In svga256c.c */

void initSuperVGA(int *driver,int *chipID,int *memory,int *dac);
bool setSuperVGAMode(int mode);
void line(int x1,int y1,int x2,int y2,int color);

/* In svga256.asm */

void restoreMode(void);
void putPixel(int x,int y,int color);
void clear(void);
void setActivePage(int page);
void setVisualPage(int page);
void setBank(int bank);
void setReadBank(int bank);

#ifdef __cplusplus
} /* End of "C" linkage for C++ */
#endif

#endif /* __SVGA256_H */