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/* 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.
*
*/
#ifndef ADL_DISPLAY_H
#define ADL_DISPLAY_H
#include <common/types.h>
#include <common/array.h>
namespace Common {
class ReadStream;
class String;
class Point;
}
namespace Graphics {
class Surface;
}
namespace Adl {
#define APPLECHAR(C) ((char)((C) | 0x80))
class Display {
public:
enum Mode {
kModeHires,
kModeText,
kModeMixed
};
Display();
~Display();
void loadFrameBuffer(Common::ReadStream &stream);
void decodeFrameBuffer();
void updateScreen();
void setMode(Mode mode) { _mode = mode; }
void drawPixel(byte x, byte y, byte color);
void drawLine(Common::Point p1, Common::Point p2, byte color);
void clear(byte color);
void drawLineArt(const Common::Array<byte> &lineArt, Common::Point p, byte rotation = 0, byte scaling = 1, byte color = 0x7f);
void setCursorPos(Common::Point pos);
void home();
void moveCursorTo(const Common::Point &pos);
void moveCursorForward();
void moveCursorBackward();
void printString(const Common::String &str);
void setCharAtCursor(byte c);
void showCursor(bool enable);
void updateTextSurface();
private:
enum {
kWidth = 280,
kHeight = 192,
kFrameBufSize = 0x2000,
kTextBufSize = 40 * 24
};
struct PixelPos {
uint16 rowAddr;
byte byteOffset;
byte bitMask;
};
void decodeScanline(byte *dst, int pitch, byte *src);
PixelPos getPixelPos(byte x, byte y);
byte getPixelColor(byte x, byte color);
void drawChar(byte c, int x, int y);
void createFont();
void moveX(PixelPos &p, byte &color, bool left);
void moveY(PixelPos &p, bool down);
void drawNextPixel(Display::PixelPos &p, byte &color, byte bits, byte quadrant);
void scrollUp();
bool _scanlines;
byte *_frameBuf;
byte *_textBuf;
Graphics::Surface *_frameBufSurface;
Graphics::Surface *_textBufSurface;
Graphics::Surface *_font;
int _cursorPos;
Mode _mode;
bool _showCursor;
};
} // End of namespace Adl
#endif
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