1 files changed, 103 insertions, 0 deletions
diff --git a/engines/adl/display.h b/engines/adl/display.h
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+++ b/engines/adl/display.h
@@ -0,0 +1,103 @@
+/* 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.
+ *
+ */
+
+#ifndef ADL_DISPLAY_H
+#define ADL_DISPLAY_H
+
+#include <common/types.h>
+#include <common/array.h>
+
+namespace Common {
+class ReadStream;
+class String;
+class Point;
+}
+
+namespace Graphics {
+class Surface;
+}
+
+namespace Adl {
+ 
+class Display {
+public:
+	enum Mode {
+		kModeHires,
+		kModeText,
+		kModeMixed
+	};
+
+	Display();
+	~Display();
+	void loadFrameBuffer(Common::ReadStream &stream);
+	void decodeFrameBuffer();
+	void printString(const Common::String &str);
+	void printASCIIString(const Common::String &str);
+	void updateScreen();
+	Common::String inputString(byte prompt = 0);
+	void delay(uint32 ms);
+	void setMode(Mode mode) { _mode = mode; }
+	byte inputKey();
+	void home();
+	void drawPixel(byte x, byte y, byte color);
+	void drawLine(Common::Point p1, Common::Point p2, byte color);
+	void clear(byte color);
+	void drawRightAngles(Common::Array<byte> &rightAngles, Common::Point p, byte rotation, byte scaling, byte color);
+
+private:
+	enum {
+		kWidth = 280,
+		kHeight = 192,
+		kFrameBufSize = 0x2000,
+		kTextBufSize = 40 * 24
+	};
+
+	struct PixelPos {
+		uint16 rowAddr;
+		byte byteOffset;
+		byte bitMask;
+	};
+
+	void decodeScanline(byte *dst, int pitch, byte *src);
+	PixelPos getPixelPos(byte x, byte y);
+	byte getPixelColor(byte x, byte color);
+	void drawChar(byte c, int x, int y);
+	void createFont();
+	void updateTextSurface();
+	byte convertKey(uint16 ascii);
+	void moveX(PixelPos &p, byte &color, bool left);
+	void moveY(PixelPos &p, bool down);
+	void drawNextPixel(Display::PixelPos &p, byte &color, byte bits, byte quadrant);
+
+	bool _scanlines;
+	byte *_frameBuf;
+	byte *_textBuf;
+	Graphics::Surface *_frameBufSurface;
+	Graphics::Surface *_textBufSurface;
+	Graphics::Surface *_font;
+	int _cursorPos;
+	Mode _mode;
+};
+ 
+} // End of namespace Adl
+
+#endif