amigafont.h

/* 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 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 GRAPHICS_FONTS_AMIGAFONT_H
#define GRAPHICS_FONTS_AMIGAFONT_H

#include "graphics/font.h"

namespace Common {
class SeekableReadStream;
}

namespace Graphics {

class AmigaFont : public Font {

#include "common/pack-start.h"
    struct CharLoc {
        uint16  _offset;
        uint16  _length;
    };

    struct AmigaDiskFont {
        uint16  _ySize;
        byte    _style;
        byte    _flags;
        uint16  _xSize;
        uint16  _baseline;
        uint16  _boldSmear;
        uint16  _accessors; // unused
        byte    _loChar;
        byte    _hiChar;
        uint32  _charData;
        uint16  _modulo;
        uint32  _charLoc;
        uint32  _charSpace;
        uint32  _charKern;
    };
#include "common/pack-end.h"

public:
    enum Topaz9Builtin {
        kTopaz9Builtin
    };

private:
    AmigaDiskFont   *_font;
    byte            *_data;
    byte            *_charData;
    CharLoc         *_charLoc;
    uint16          *_charSpace;
    uint16          *_charKern;

    byte            *_cp;
    uint32          _pitch;
    int             _maxCharWidth;

private:
    void initFromData(const byte *data, uint32 dataSize, uint32 fontOffset);
    bool isProportional() const;
    int16 getCharSpace(byte c) const;
    int16 getCharKern(byte c) const;
    uint16 getPixels(byte c) const;
    uint16 getOffset(byte c) const;

    uint32 mapChar(uint32 c) const;

public:
    AmigaFont(Common::SeekableReadStream *stream = NULL);
    AmigaFont(Topaz9Builtin);
    virtual ~AmigaFont();

    virtual int getFontHeight() const;
    virtual int getCharWidth(uint32 chr) const;
    virtual int getMaxCharWidth() const;
    virtual int getKerningOffset(uint32 left, uint32 right) const;
    int getCharAdvanceWidth(uint32 chr) const;
    int getCharDrawOffset(uint32 chr) const;
    int getCharInkWidth(uint32 chr) const;
    int getCharRenderWidth(uint32 chr) const;
    void drawCharDoubleHeight(Surface *dst, uint32 chr, int x, int y, uint32 color) const;
    virtual void drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const;

    int getLoChar() const { return _font->_loChar; }
    int getHiChar() const { return _font->_hiChar; }
};

} // End of namespace Graphics

#endif