1 files changed, 135 insertions, 0 deletions
diff --git a/graphics/sjis.h b/graphics/sjis.h
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+++ b/graphics/sjis.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 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.
+ *
+ * $URL$
+ * $Id$
+ */
+
+// The code in this file is currently only used in KYRA and SCI.
+// So if neither of those is enabled, we will skip compiling it.
+// If you plan to use this code in another engine, you will have
+// to add the proper define check here.
+// Also please add the define check at the comment after the
+// matching #endif further down this file.
+#if defined(ENABLE_KYRA) || defined(ENABLE_SCI)
+
+#ifndef GRAPHICS_SJIS_H
+#define GRAPHICS_SJIS_H
+
+#include "common/scummsys.h"
+#include "common/stream.h"
+
+#include "graphics/surface.h"
+
+namespace Graphics {
+
+/**
+ * A font that is able to draw SJIS encoded characters.
+ *
+ * The font is always monospaced.
+ */
+class FontSJIS {
+public:
+	virtual ~FontSJIS() {}
+
+	/**
+	 * Enable outline drawing.
+	 *
+	 * After changing outline state, getFontHeight and getFontWidth might return
+	 * different values!
+	 */
+	virtual void enableOutline(bool enable) {}
+
+	/**
+	 * Returns the height of the font.
+	 */
+	virtual uint getFontHeight() const = 0;
+
+	/**
+	 * Returns the width of the font.
+	 */
+	virtual uint getFontWidth() const = 0;
+
+	/**
+	 * Draws a SJIS encoded character on the given surface.
+	 */
+	void drawChar(Graphics::Surface &dst, uint16 ch, int x, int y, uint32 c1, uint32 c2) const {
+		drawChar(dst.getBasePtr(x, y), ch, c1, c2, dst.pitch, dst.bytesPerPixel);
+	}
+
+	/**
+	 * Draws a SJIS char on the given raw buffer.
+	 *
+	 * @param dst	pointer to the destination
+	 * @param ch	character to draw
+	 * @param pitch	pitch of the destination buffer (size in *bytes*)
+	 * @param bpp	bytes per pixel of the destination buffer
+	 * @param c1	forground color
+	 * @param c2	outline color
+	 */
+	virtual void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const = 0;
+};
+
+/**
+ * FM-TOWNS ROM based SJIS compatible font.
+ *
+ * This is used in KYRA and SCI.
+ */
+class FontTowns : public FontSJIS {
+public:
+	FontTowns() : _outlineEnabled(false) {}
+
+	/**
+	 * Loads the ROM data from the given read stream.
+	 */
+	bool loadFromStream(Common::ReadStream &stream);
+
+	void enableOutline(bool enable) { _outlineEnabled = enable; }
+
+	uint getFontHeight() const { return _outlineEnabled ? 18 : 16; }
+	uint getFontWidth() const { return _outlineEnabled ? 18 : 16; }
+
+	void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const;
+
+private:
+	template<typename Color>
+	void drawCharInternOutline(const uint16 *glyph, uint8 *dst, int pitch, Color c1, Color c2) const;
+
+	template<typename Color>
+	void drawCharIntern(const uint16 *glyph, uint8 *dst, int pitch, Color c1) const;
+
+	enum {
+		kFontRomSize = 262144
+	};
+
+	bool _outlineEnabled;
+	uint16 _fontData[kFontRomSize / 2];
+
+	static uint sjisToChunk(uint8 low, uint8 high);
+};
+
+// TODO: Consider adding support for PC98 ROM
+
+} // end of namespace Graphics
+
+#endif
+
+#endif // defined(ENABLE_KYRA) || defined(ENABLE_SCI)
+