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graphics/fonts/amigafont.h

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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 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"
+
+	AmigaDiskFont	*_font;
+	byte			*_data;
+	byte			*_charData;
+	CharLoc			*_charLoc;
+	uint16			*_charSpace;
+	uint16			*_charKern;
+
+	byte			*_cp;
+	uint32			_pitch;
+	int             _maxCharWidth;
+
+private:
+	uint16 getPixels(byte c) const;
+	uint16 getOffset(byte c) const;
+
+	uint32 mapChar(uint32 c) const;
+
+public:
+	/**
+	 * Create font in Amiga format.
+	 *
+	 * @param stream  Stream with the font data. If NULL, then the built-in
+	 *				  Topaz font is used.
+	 */
+	AmigaFont(Common::SeekableReadStream *stream = NULL);
+	virtual ~AmigaFont();
+
+	virtual int getFontHeight() const;
+	virtual int getCharWidth(uint32 chr) const;
+	virtual int getMaxCharWidth() const;
+	virtual int getKerningOffset(uint32 left, uint32 right) const;
+	virtual void drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const;
+
+	int getLoChar() { return _font->_loChar; }
+	int getHiChar() { return _font->_hiChar; }
+};
+
+} // End of namespace Graphics
+
+#endif