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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 LASTEXPRESS_SND_H
#define LASTEXPRESS_SND_H
/*
Sound format (.SND / .LNK)
uint32 {4} - data size
uint16 {2} - number of blocks
// for each block
int16 {2} - initial sample
byte {1} - initial index
byte {1} - unused (00)
byte {x} - IMA ADPCM sample codes
*/
#include "audio/mixer.h"
namespace Audio {
class AudioStream;
class QueuingAudioStream;
}
namespace Common {
class SeekableReadStream;
}
namespace LastExpress {
class LastExpress_ADPCMStream;
class SimpleSound {
public:
SimpleSound();
virtual ~SimpleSound();
void stop() const;
virtual bool isFinished() = 0;
uint32 getTimeMS();
protected:
void loadHeader(Common::SeekableReadStream *in);
LastExpress_ADPCMStream *makeDecoder(Common::SeekableReadStream *in, uint32 size, uint32 volume, bool looped) const;
void play(Audio::AudioStream *as, DisposeAfterUse::Flag autofreeStream);
uint32 _size; ///< data size
///< - NIS: size of all blocks, including those located in the matching LNK file
///< - LNK: size of the LNK file itself, including the header
///< - SND: size of all blocks
uint16 _blocks; ///< number of blocks
uint32 _blockSize;
Audio::SoundHandle _handle;
};
class StreamedSound : public SimpleSound {
public:
StreamedSound();
~StreamedSound();
bool load(Common::SeekableReadStream *stream, uint32 volume, bool looped);
virtual bool isFinished();
void setVolume(uint32 newVolume);
void setVolumeSmoothly(uint32 newVolume);
private:
LastExpress_ADPCMStream *_as;
bool _loaded;
};
class AppendableSound : public SimpleSound {
public:
AppendableSound();
~AppendableSound();
void queueBuffer(const byte *data, uint32 size);
void queueBuffer(Common::SeekableReadStream *bufferIn);
void finish();
virtual bool isFinished();
private:
Audio::QueuingAudioStream *_as;
bool _finished;
};
} // End of namespace LastExpress
#endif // LASTEXPRESS_SND_H
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