/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This code is based on Labyrinth of Time code with assistance of
 *
 * Copyright (c) 1993 Terra Nova Development
 * Copyright (c) 2004 The Wyrmkeep Entertainment Co.
 *
 */

#include "lab/stddefines.h"

#ifndef LAB_VGA_H
#define LAB_VGA_H

namespace Lab {

struct Image {
	uint16 Width;
	uint16 Height;
	byte *ImageData;
};

void setMode(char mode);

void getMode(uint16 *Mode);

void setPage(uint16 PageNum);

void VGAStorePage(void);

void VGARestorePage(void);

bool createScreen(bool HiRes);

void waitTOF(void);

void quickWaitTOF(void);

byte *getVGABaseAddr(void);

#if !defined(DOSCODE)
void ungetVGABaseAddr();
#endif

void writeColorReg(char *buf, uint16 regnum);

void writeColorRegs(char *buf, uint16 first, uint16 numreg);

void writeColorRegsSmooth(char *buf, uint16 first, uint16 numreg);

void VGASetPal(void *cmap, uint16 numcolors);

/*---------- Drawing Routines ----------*/

void drawImage(struct Image *Im, uint16 x, uint16 y);

void drawMaskImage(struct Image *Im, uint16 x, uint16 y);

void readScreenImage(struct Image *Im, uint16 x, uint16 y);

void bltBitMap(struct Image *ImSource, uint16 xs, uint16 ys, struct Image *ImDest, uint16 xd, uint16 yd, uint16 width, uint16 height);

void scrollDisplayX(int16 dx, uint16 x1, uint16 y1, uint16 x2, uint16 y2);

void scrollDisplayY(int16 dy, uint16 x1, uint16 y1, uint16 x2, uint16 y2);

void setAPen(uint16 pennum);

void drawHLine(uint16 x, uint16 y1, uint16 y2);

void drawVLine(uint16 x1, uint16 y, uint16 x2);

void rectFill(uint16 x1, uint16 y1, uint16 x2, uint16 y2);

void ghoastRect(uint16 pencolor, uint16 x1, uint16 y1, uint16 x2, uint16 y2);

void WSDL_UpdateScreen();

} // End of namespace Lab

#endif /* LAB_VGA_H */