mirror of
https://github.com/libretro/scummvm.git
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47e9a6ccdc
- Rename kSoundStatusRemoved to kSoundStatusClosed - Rename kSoundStatusClear2 to kSoundStatusCached - Remove sound cache handling
108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef LASTEXPRESS_SND_H
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#define LASTEXPRESS_SND_H
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/*
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Sound format (.SND / .LNK)
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uint32 {4} - data size
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uint16 {2} - number of blocks
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// for each block
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int16 {2} - initial sample
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byte {1} - initial index
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byte {1} - unused (00)
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byte {x} - IMA ADPCM sample codes
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*/
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#include "audio/mixer.h"
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namespace Audio {
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class AudioStream;
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class QueuingAudioStream;
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}
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namespace Common {
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class SeekableReadStream;
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}
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namespace LastExpress {
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class SimpleSound {
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public:
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SimpleSound();
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virtual ~SimpleSound();
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void stop() const;
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virtual bool isFinished() = 0;
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protected:
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void loadHeader(Common::SeekableReadStream *in);
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Audio::AudioStream *makeDecoder(Common::SeekableReadStream *in, uint32 size, int32 filterId = -1) const;
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void play(Audio::AudioStream *as);
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uint32 _size; ///< data size
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///< - NIS: size of all blocks, including those located in the matching LNK file
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///< - LNK: size of the LNK file itself, including the header
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///< - SND: size of all blocks
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uint16 _blocks; ///< number of blocks
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uint32 _blockSize;
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Audio::SoundHandle _handle;
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};
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class StreamedSound : public SimpleSound {
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public:
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StreamedSound();
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~StreamedSound();
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bool load(Common::SeekableReadStream *stream, int32 filterId = -1);
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virtual bool isFinished();
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void setFilterId(int32 filterId);
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private:
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Audio::AudioStream *_as;
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bool _loaded;
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};
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class AppendableSound : public SimpleSound {
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public:
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AppendableSound();
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~AppendableSound();
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void queueBuffer(const byte *data, uint32 size);
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void queueBuffer(Common::SeekableReadStream *bufferIn);
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void finish();
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virtual bool isFinished();
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private:
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Audio::QueuingAudioStream *_as;
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bool _finished;
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};
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} // End of namespace LastExpress
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#endif // LASTEXPRESS_SND_H
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