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-rw-r--r--engines/cryomni3d/image/hlz.cpp67
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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 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 "cryomni3d/image/hlz.h"
+
+#include "common/stream.h"
+#include "common/substream.h"
+#include "common/textconsole.h"
+#include "graphics/pixelformat.h"
+#include "graphics/surface.h"
+#include "image/codecs/codec.h"
+
+#include "cryomni3d/image/codecs/hlz.h"
+
+namespace Image {
+
+HLZFileDecoder::HLZFileDecoder() {
+ _surface = 0;
+ _codec = 0;
+}
+
+HLZFileDecoder::~HLZFileDecoder() {
+ destroy();
+}
+
+void HLZFileDecoder::destroy() {
+ delete _codec;
+ _codec = 0;
+ _surface = 0;
+}
+
+bool HLZFileDecoder::loadStream(Common::SeekableReadStream &stream) {
+ destroy();
+
+ stream.read(_palette, sizeof(_palette));
+ uint16 width = stream.readUint16LE();
+ uint16 height = stream.readUint16LE();
+
+ if (width == 0 || height == 0) {
+ return false;
+ }
+
+ _codec = new HLZDecoder(width, height);
+ _surface = _codec->decodeFrame(stream);
+ return true;
+}
+
+} // End of namespace Image