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engines/gob/sound/sounddesc.h

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * This file is dual-licensed.
+ * In addition to the GPLv3 license mentioned above, this code is also
+ * licensed under LGPL 2.1. See LICENSES/COPYING.LGPL file for the
+ * full text of the license.
+ *
+ */
+
+#ifndef GOB_SOUND_SOUNDDESC_H
+#define GOB_SOUND_SOUNDDESC_H
+
+#include "common/endian.h"
+
+namespace Gob {
+
+class Resource;
+
+enum SoundType {
+	SOUND_SND,
+	SOUND_WAV,
+	SOUND_ADL
+};
+
+class SoundDesc {
+public:
+	int16 _repCount;
+	int16 _frequency;
+	int16 _flag;
+	int16 _id;
+	byte _mixerFlags;
+
+	SoundDesc();
+	~SoundDesc();
+
+	void swap(SoundDesc &desc);
+
+	byte *getData() { return _dataPtr; }
+
+	uint32    size()         const { return _size;     }
+	bool      empty()        const { return !_dataPtr; }
+	SoundType getType()      const { return _type;     }
+
+	bool isId(int16 id) const { return _dataPtr && (_id == id); }
+
+	void set(SoundType type, byte *data, uint32 dSize);
+	bool load(SoundType type, byte *data, uint32 dSize);
+	bool load(SoundType type, Resource *resource);
+
+	void free();
+	void convToSigned();
+
+	// Which fade out length to use when the fade starts half-way through?
+	int16 calcFadeOutLength(int16 frequency);
+	uint32 calcLength(int16 repCount, int16 frequency, bool fade);
+
+private:
+	Resource *_resource;
+	byte *_data;
+	byte *_dataPtr;
+	uint32 _size;
+
+	SoundType _type;
+
+	bool loadSND(byte *data, uint32 dSize);
+	bool loadWAV(byte *data, uint32 dSize);
+	bool loadADL(byte *data, uint32 dSize);
+};
+
+} // End of namespace Gob
+
+#endif // GOB_SOUND_SOUNDDESC_H