1 files changed, 76 insertions, 0 deletions
diff --git a/engines/xeen/xsurface.cpp b/engines/xeen/xsurface.cpp
new file mode 100644
index 0000000000..04a264a80c
--- /dev/null
+++ b/engines/xeen/xsurface.cpp
@@ -0,0 +1,76 @@
+/* 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.
+ *
+ */
+
+#include "common/algorithm.h"
+#include "common/util.h"
+#include "xeen/xsurface.h"
+#include "xeen/resources.h"
+#include "xeen/screen.h"
+
+namespace Xeen {
+
+XSurface::XSurface() : Graphics::Surface(), _freeFlag(false) {
+}
+
+XSurface::XSurface(int w, int h) : Graphics::Surface(), _freeFlag(false) {
+	create(w, h);
+}
+
+XSurface::~XSurface() {
+	if (_freeFlag)
+		free();
+}
+
+void XSurface::create(uint16 w, uint16 h) {
+	Graphics::Surface::create(w, h, Graphics::PixelFormat::createFormatCLUT8());
+	_freeFlag = true;
+}
+
+void XSurface::create(XSurface *s, const Common::Rect &bounds) {
+	pixels = (byte *)s->getBasePtr(bounds.left, bounds.top);
+	format = Graphics::PixelFormat::createFormatCLUT8();
+	pitch = s->pitch;
+	w = bounds.width();
+	h = bounds.height();
+
+	_freeFlag = false;
+}
+
+void XSurface::blitTo(XSurface &dest) const {
+	blitTo(dest, Common::Point());
+}
+
+void XSurface::blitTo(XSurface &dest, const Common::Point &destPos) const {
+	if (dest.getPixels() == nullptr)
+		dest.create(w, h);
+
+	for (int yp = 0; yp < h; ++yp) {
+		const byte *srcP = (const byte *)getBasePtr(0, yp);
+		byte *destP = (byte *)dest.getBasePtr(destPos.x, destPos.y + yp);
+
+		Common::copy(srcP, srcP + w, destP);
+	}
+
+	dest.addDirtyRect(Common::Rect(destPos.x, destPos.y, destPos.x + w, destPos.y + h));
+}
+
+} // End of namespace Xeen