2 files changed, 149 insertions, 0 deletions
diff --git a/engines/draci/surface.cpp b/engines/draci/surface.cpp
new file mode 100644
index 0000000000..1c7fce08b5
--- /dev/null
+++ b/engines/draci/surface.cpp
@@ -0,0 +1,93 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "draci/screen.h"
+#include "draci/surface.h"
+
+namespace Draci {
+
+Surface::Surface(int width, int height) {
+	this->create(width, height, 1);
+	this->markClean();
+	_transparentColour = kDefaultTransparent;
+}
+
+Surface::~Surface() {
+	this->free();
+}
+
+void Surface::markDirtyRect(Common::Rect r) {
+	Common::List<Common::Rect>::iterator it;
+
+	r.clip(w, h);
+
+	if (r.isEmpty())
+		return;
+
+	it = _dirtyRects.begin(); 
+	while (it != _dirtyRects.end()) {
+
+		if (it->contains(r))
+			return;
+
+		if (r.contains(*it))
+			it = _dirtyRects.erase(it);
+		else
+			++it;
+	}
+
+	_dirtyRects.push_back(r);
+}
+
+void Surface::clearDirtyRects() {
+	_dirtyRects.clear();
+}
+
+void Surface::markDirty() {
+	_fullUpdate = true;
+}
+
+void Surface::markClean() {
+	_fullUpdate = false;
+	_dirtyRects.clear();
+}
+
+bool Surface::needsFullUpdate() {
+	return _fullUpdate;
+}
+
+Common::List<Common::Rect> *Surface::getDirtyRects() {
+	return &_dirtyRects;
+}
+
+uint8 Surface::getTransparentColour() {
+	return _transparentColour;
+}
+
+void Surface::setTransparentColour(uint8 colour) {
+	_transparentColour = colour;
+}
+
+} // End of namespace Draci
diff --git a/engines/draci/surface.h b/engines/draci/surface.h
new file mode 100644
index 0000000000..cc1dff806b
--- /dev/null
+++ b/engines/draci/surface.h
@@ -0,0 +1,56 @@
+/* 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 DRACI_SURFACE_H
+#define DRACI_SURFACE_H
+
+#include "graphics/surface.h"
+
+namespace Draci {
+
+class Surface : public Graphics::Surface {
+
+public:
+	Surface(int width, int height);
+	~Surface();
+
+	void markDirtyRect(Common::Rect r);
+	Common::List<Common::Rect> *getDirtyRects();
+	void clearDirtyRects();
+	void markDirty();
+	void markClean();
+	bool needsFullUpdate();
+	uint8 getTransparentColour();
+	void setTransparentColour(uint8 colour);
+
+private:
+	bool _fullUpdate;
+	uint8 _transparentColour;
+	Common::List<Common::Rect> _dirtyRects;
+};
+
+} // End of namespace Draci
+
+#endif // DRACI_SURFACE_H