scummvm/engines/adl/graphics.h
2017-02-02 09:49:45 +01:00

102 lines
3.2 KiB
C++

/* 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_PICTURE_H
#define ADL_PICTURE_H
#include "common/rect.h"
namespace Common {
class SeekableReadStream;
}
namespace Adl {
class Display;
class GraphicsMan {
public:
virtual ~GraphicsMan() { }
virtual void drawPic(Common::SeekableReadStream &pic, const Common::Point &pos) = 0;
void clearScreen() const;
void putPixel(const Common::Point &p, byte color) const;
protected:
GraphicsMan(Display &display) : _bounds(280, 160), _display(display) { }
void drawLine(const Common::Point &p1, const Common::Point &p2, byte color) const;
Display &_display;
Common::Rect _bounds;
private:
virtual byte getClearColor() const = 0;
};
// Used in hires1
class Graphics_v1 : public GraphicsMan {
public:
Graphics_v1(Display &display) : GraphicsMan(display) { }
void drawPic(Common::SeekableReadStream &pic, const Common::Point &pos);
void drawCorners(Common::ReadStream &corners, const Common::Point &pos, byte rotation = 0, byte scaling = 1, byte color = 0x7f) const;
private:
void drawCornerPixel(Common::Point &p, byte color, byte bits, byte quadrant) const;
byte getClearColor() const { return 0x00; }
};
// Used in hires0 and hires2-hires4
class Graphics_v2 : public GraphicsMan {
public:
Graphics_v2(Display &display) : GraphicsMan(display), _color(0) { }
void drawPic(Common::SeekableReadStream &pic, const Common::Point &pos);
protected:
bool canFillAt(const Common::Point &p, const bool stopBit = false);
void fillRow(Common::Point p, const byte pattern, const bool stopBit = false);
private:
void drawCorners(Common::SeekableReadStream &pic, bool yFirst);
void drawRelativeLines(Common::SeekableReadStream &pic);
void drawAbsoluteLines(Common::SeekableReadStream &pic);
virtual void fillRowLeft(Common::Point p, const byte pattern, const bool stopBit);
virtual void fillAt(Common::Point p, const byte pattern);
void fill(Common::SeekableReadStream &pic);
byte getClearColor() const { return 0xff; }
byte _color;
Common::Point _offset;
};
// Used in hires5, hires6 and gelfling (possibly others as well)
class Graphics_v3 : public Graphics_v2 {
public:
Graphics_v3(Display &display) : Graphics_v2(display) { }
private:
void fillRowLeft(Common::Point p, const byte pattern, const bool stopBit);
void fillAt(Common::Point p, const byte pattern);
};
} // End of namespace Adl
#endif