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https://github.com/libretro/scummvm.git
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122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2003-2004 The ScummVM project
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef BSMUSIC_H
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#define BSMUSIC_H
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#include "scummsys.h"
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#include "common/system.h"
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#include "common/file.h"
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#include "sound/audiostream.h"
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#include "sound/rate.h"
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class SoundMixer;
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namespace Sword1 {
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#define TOTAL_TUNES 270
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#define WAVEHEADERSIZE 0x2C
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enum MusicMode {
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MusicNone = 0,
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MusicWave,
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MusicMp3,
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MusicVorbis
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};
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class WaveAudioStream : public AudioStream {
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public:
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WaveAudioStream(File *source, uint32 pSize);
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virtual ~WaveAudioStream();
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virtual int readBuffer(int16 *buffer, const int numSamples);
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virtual bool isStereo(void) const { return _isStereo; };
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virtual bool endOfData(void) const;
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virtual int getRate(void) const { return _rate; };
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private:
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File *_sourceFile;
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uint32 _rate;
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bool _isStereo;
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uint32 _samplesLeft;
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uint16 _bitsPerSample;
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};
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class MusicHandle : public AudioStream {
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private:
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File _file;
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bool _looping;
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int32 _fading;
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int32 _fadeSamples;
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MusicMode _musicMode;
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AudioStream *_audioSource;
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AudioStream *createAudioSource(void);
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public:
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MusicHandle() : _looping(false), _fading(0), _audioSource(NULL) {}
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virtual int readBuffer(int16 *buffer, const int numSamples);
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bool play(const char *filename, bool loop);
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void stop();
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void fadeUp();
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void fadeDown();
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bool streaming() const;
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int32 fading() { return _fading; }
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bool endOfData() const;
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bool endOfStream() const { return false; }
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bool isStereo() const;
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int getRate() const;
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};
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class Music : public AudioStream {
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public:
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Music(OSystem *system, SoundMixer *pMixer);
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~Music();
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void startMusic(int32 tuneId, int32 loopFlag);
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void fadeDown();
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void setVolume(uint8 volL, uint8 volR);
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void giveVolume(uint8 *volL, uint8 *volR);
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// AudioStream API
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int readBuffer(int16 *buffer, const int numSamples) {
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mixer(buffer, numSamples / 2);
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return numSamples;
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}
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bool isStereo() const { return true; }
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bool endOfData() const { return false; }
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int getRate() const { return _sampleRate; }
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private:
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st_volume_t _volumeL, _volumeR;
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MusicHandle _handles[2];
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RateConverter *_converter[2];
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OSystem *_system;
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SoundMixer *_mixer;
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uint32 _sampleRate;
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OSystem::MutexRef _mutex;
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static void passMixerFunc(void *param, int16 *buf, uint len);
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void mixer(int16 *buf, uint32 len);
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static const char _tuneList[TOTAL_TUNES][8]; // in staticres.cpp
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};
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} // End of namespace Sword1
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#endif // BSMUSIC_H
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