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authorJohannes Schickel2009-07-07 14:22:23 +0000
committerJohannes Schickel2009-07-07 14:22:23 +0000
commit862308166645a5f7b5422473b434f0a8ec86d7b2 (patch)
treedf3c4304269454a80d47464f35026842e6d12387 /graphics/sjis.h
parentab8c3d56b86d93dcd2c0debeb6ad57bf87910fd2 (diff)
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Add generic functionallity to draw FM-Towns ROM. (To be used by KYRA and SCI)
svn-id: r42221
Diffstat (limited to 'graphics/sjis.h')
-rw-r--r--graphics/sjis.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/graphics/sjis.h 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.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#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() {}
+
+ /**
+ * 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) const {
+ drawChar(dst.getBasePtr(x, y), ch, c1, 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
+ */
+ virtual void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1) const = 0;
+};
+
+/**
+ * FM-Towns ROM based SJIS compatible font.
+ *
+ * This is used in KYRA and SCI.
+ */
+class FontTowns : public FontSJIS {
+public:
+ /**
+ * Loads the ROM data from the given read stream.
+ */
+ bool loadFromStream(Common::ReadStream &stream);
+
+ uint getFontHeight() const { return 16; }
+ uint getFontWidth() const { return 16; }
+
+ void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1) const;
+
+private:
+ template<typename Color>
+ void drawCharIntern(const uint16 *glyph, uint8 *dst, int pitch, Color c1) const;
+
+ enum {
+ kFontRomSize = 262144
+ };
+
+ uint16 _fontData[kFontRomSize / 2];
+
+ static uint sjisToChunk(uint8 low, uint8 high);
+};
+
+// TODO: Consider adding support for PC98 ROM
+
+} // end of namespace Graphics
+
+#endif
+