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engines/saga2/vpage.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/>.
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#ifndef SAGA2_VPAGE_H
+#define SAGA2_VPAGE_H
+
+namespace Saga2 {
+
+class vDisplayPage {
+public:
+	virtual ~vDisplayPage() {}
+
+	Point16         _size;               // size in pixels
+
+#if     ! defined( USEWINDOWS )
+	//  inline function to set the bank if needed
+	virtual void setWriteBank(uint16) {}
+	virtual void setReadBank(uint16) {}
+#endif
+
+	//  Basic rectangle drawing function
+	virtual void fillRect(Rect16 r, uint8 color);
+	//  Complement mode drawing function
+	virtual void invertRect(Rect16 r, uint8 color);
+
+	//  REM: General rectangular display blitting function
+	//  REM: Special-case blitting functions
+
+	//  General-purpose blitting functions to transfer data
+	//  from svga to offscreen buffer and vice versa
+	//  (dispRect is the rectangle on the SVGA page, pixPtr
+	//  is the buffer to transfer the pixels to/from, and
+	//  pixMod is the line modulus of the buffer.)
+
+	virtual void readPixels(Rect16 &dispRect, uint8 *pixPtr, uint16 pixMod);
+	virtual void writePixels(Rect16 dispRect, uint8 *pixPtr, uint16 pixMod);
+	virtual void writeTransPixels(Rect16 dispRect, uint8 *pixPtr, uint16 pixMod);
+	virtual void writeColorPixels(Rect16 dispRect, uint8 *pixPtr, uint16 pixMod, uint8 color);
+	virtual void writeComplementPixels(Rect16 dispRect, uint8 *pixPtr, uint16 pixMod, uint8 color);
+};
+
+} // end of namespace Saga2
+
+#endif