1 files changed, 202 insertions, 0 deletions
diff --git a/engines/scumm/charset.h b/engines/scumm/charset.h
new file mode 100644
index 0000000000..3746f3be4e
--- /dev/null
+++ b/engines/scumm/charset.h
@@ -0,0 +1,202 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001-2006 The ScummVM project
+ *
+ * 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 CHARSET_H
+#define CHARSET_H
+
+#include "common/scummsys.h"
+#include "common/rect.h"
+#include "scumm/gfx.h"
+
+namespace Scumm {
+
+class ScummEngine;
+class NutRenderer;
+struct VirtScreen;
+
+static inline bool checkSJISCode(byte c) {
+	if ((c > 0x84 && c < 0x88) || (c > 0x9f && c < 0xe0) || (c > 0xea /* && c <= 0xff */))
+		return false;
+	return true;
+}
+
+
+class CharsetRenderer {
+public:
+
+	Common::Rect _str;
+	int _nextLeft, _nextTop;
+
+	int _top;
+	int _left, _startLeft;
+	int _right;
+
+protected:
+	byte _color;
+
+public:
+	bool _center;
+
+	bool _hasMask;	// True if "removable" text is visible somewhere (should be called _hasText or so)
+	VirtScreenNumber _textScreenID;	// ID of the virtual screen on which the text is visible.
+
+	bool _blitAlso;
+	bool _firstChar;
+	bool _disableOffsX;
+
+	/**
+	 * All text is normally rendered into this overlay surface. Then later
+	 * drawStripToScreen() composits it over the game graphics.
+	 */
+	Graphics::Surface _textSurface;
+
+protected:
+	ScummEngine *_vm;
+	byte _curId;
+
+public:
+	CharsetRenderer(ScummEngine *vm);
+	virtual ~CharsetRenderer();
+
+	void restoreCharsetBg();
+	void clearCharsetMask();
+	void clearTextSurface();
+
+	virtual void printChar(int chr, bool ignoreCharsetMask) = 0;
+	virtual void drawChar(int chr, const Graphics::Surface &s, int x, int y) {}
+
+	int getStringWidth(int a, const byte *str);
+	void addLinebreaks(int a, byte *str, int pos, int maxwidth);
+	void translateColor();
+
+	virtual void setCurID(byte id) = 0;
+	int getCurID() { return _curId; }
+
+	virtual int getFontHeight() = 0;
+	virtual int getCharHeight(byte chr) { return getFontHeight(); }
+	virtual int getCharWidth(byte chr) = 0;
+
+	virtual void setColor(byte color) { _color = color; translateColor(); }
+};
+
+class CharsetRendererCommon : public CharsetRenderer {
+protected:
+	byte *_fontPtr;
+	int _bitDepth;
+	int _fontHeight;
+	int _numChars;
+
+	enum ShadowMode {
+		kNoShadowMode,
+		kFMTOWNSShadowMode,
+		kNormalShadowMode
+	};
+	byte _shadowColor;
+	ShadowMode _shadowMode;
+
+	void enableShadow(bool enable);
+	void drawBits1(const Graphics::Surface &s, byte *dst, const byte *src, int drawTop, int width, int height);
+
+public:
+	CharsetRendererCommon(ScummEngine *vm);
+
+	void setCurID(byte id);
+
+	int getFontHeight();
+};
+
+class CharsetRendererClassic : public CharsetRendererCommon {
+protected:
+	void drawBitsN(const Graphics::Surface &s, byte *dst, const byte *src, byte bpp, int drawTop, int width, int height);
+
+public:
+	CharsetRendererClassic(ScummEngine *vm) : CharsetRendererCommon(vm) {}
+
+	void printChar(int chr, bool ignoreCharsetMask);
+	void drawChar(int chr, const Graphics::Surface &s, int x, int y);
+
+	int getCharWidth(byte chr);
+};
+
+class CharsetRendererNES : public CharsetRendererCommon {
+protected:
+	byte *_trTable;
+
+	void drawBits1(const Graphics::Surface &s, byte *dst, const byte *src, int drawTop, int width, int height);
+
+public:
+	CharsetRendererNES(ScummEngine *vm) : CharsetRendererCommon(vm) {}
+
+	void setCurID(byte id) {}
+	void printChar(int chr, bool ignoreCharsetMask);
+	void drawChar(int chr, const Graphics::Surface &s, int x, int y);
+
+	int getFontHeight() { return 8; }
+	int getCharWidth(byte chr) { return 8; }
+};
+
+class CharsetRendererV3 : public CharsetRendererCommon {
+protected:
+	byte *_widthTable;
+
+public:
+	CharsetRendererV3(ScummEngine *vm) : CharsetRendererCommon(vm) {}
+
+	void printChar(int chr, bool ignoreCharsetMask);
+	void drawChar(int chr, const Graphics::Surface &s, int x, int y);
+	void setCurID(byte id);
+	void setColor(byte color);
+	int getFontHeight();
+	int getCharWidth(byte chr);
+};
+
+class CharsetRendererV2 : public CharsetRendererV3 {
+public:
+	CharsetRendererV2(ScummEngine *vm, Common::Language language);
+
+	void setCurID(byte id) {}
+	int getCharWidth(byte chr) { return 8; }
+};
+
+#ifndef DISABLE_SCUMM_7_8
+class CharsetRendererNut : public CharsetRenderer {
+protected:
+	NutRenderer *_fr[5];
+	NutRenderer *_current;
+
+public:
+	CharsetRendererNut(ScummEngine *vm);
+	~CharsetRendererNut();
+
+	void printChar(int chr, bool ignoreCharsetMask);
+
+	void setCurID(byte id);
+
+	int getFontHeight();
+	int getCharHeight(byte chr);
+	int getCharWidth(byte chr);
+};
+#endif
+
+} // End of namespace Scumm
+
+
+#endif