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-rw-r--r--engines/zvision/rlf_animation.h98
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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.
+ *
+ */
+
+#ifndef ZVISION_RLF_ANIMATION_H
+#define ZVISION_RLF_ANIMATION_H
+
+#include "common/types.h"
+
+#include "common/file.h"
+#include "graphics/surface.h"
+
+
+namespace Common {
+class String;
+}
+
+namespace ZVision {
+
+class RlfAnimation {
+public:
+ RlfAnimation(const Common::String &fileName, bool stream = true);
+ ~RlfAnimation();
+
+private:
+ enum EncodingType {
+ Masked,
+ Simple
+ };
+
+ struct Frame {
+ EncodingType type;
+ int8 *encodedData;
+ uint32 encodedSize;
+ };
+
+ const static Graphics::PixelFormat _pixelFormat555;
+ const static Graphics::PixelFormat _pixelFormat565;
+
+private:
+ Common::File _file;
+ bool _stream;
+ uint _lastFrameRead;
+
+ uint _frameCount;
+ uint _width;
+ uint _height;
+ uint32 _frameTime; // In milliseconds
+ Frame *_frames;
+ Common::List<uint> _completeFrames;
+
+ int _currentFrame;
+ uint16 *_currentFrameBuffer;
+ uint32 _frameBufferByteSize;
+
+public:
+ uint frameCount() { return _frameCount; }
+ uint width() { return _width; }
+ uint height() { return _height; }
+ uint32 frameTime() { return _frameTime; }
+
+ const uint16 *getFrameData(uint frameNumber);
+ const uint16 *getNextFrame();
+
+ bool endOfAnimation() { return _currentFrame == (int)_frameCount - 1; }
+
+private:
+ bool readHeader();
+ Frame readNextFrame();
+
+ void applyFrameToCurrent(uint frameNumber);
+ void applyFrameToCurrent(const RlfAnimation::Frame &frame);
+
+ void decodeMaskedRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
+ void decodeSimpleRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
+};
+
+} // End of namespace ZVision
+
+#endif