1 files changed, 71 insertions, 0 deletions
diff --git a/engines/prince/mhwanh.cpp b/engines/prince/mhwanh.cpp
new file mode 100644
index 0000000000..ef94ef71f9
--- /dev/null
+++ b/engines/prince/mhwanh.cpp
@@ -0,0 +1,71 @@
+/* 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/stream.h"
+
+#include "graphics/surface.h"
+
+#include "prince/mhwanh.h"
+
+namespace Prince {
+
+MhwanhDecoder::MhwanhDecoder() : _surface(nullptr), _palette(nullptr) {
+}
+
+MhwanhDecoder::~MhwanhDecoder() {
+	destroy();
+}
+
+void MhwanhDecoder::destroy() {
+	if (_surface != nullptr) {
+		_surface->free();
+		delete _surface; 
+		_surface = nullptr;
+	}
+	if (_palette != nullptr) {
+		free(_palette);
+		_palette = nullptr;
+	}
+}
+
+bool MhwanhDecoder::loadStream(Common::SeekableReadStream &stream) {
+	destroy();
+	stream.seek(0);
+	stream.skip(0x20);
+	// Read the palette
+	_palette = (byte *)malloc(kPaletteColorCount * 3);
+	for (uint16 i = 0; i < kPaletteColorCount; i++) {
+		_palette[i * 3] = stream.readByte();
+		_palette[i * 3 + 1] = stream.readByte();
+		_palette[i * 3 + 2] = stream.readByte();
+	}  
+
+	_surface = new Graphics::Surface();
+	_surface->create(640, 480, Graphics::PixelFormat::createFormatCLUT8());
+	for (int h = 0; h < 480; h++) {
+		stream.read(_surface->getBasePtr(0, h), 640);
+	}
+
+	return true;
+}
+
+} // End of namespace Prince