Glenn Maynard
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/* RageSoundReader_Chain - Chain sounds together */
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#ifndef RAGE_SOUND_READER_CHAIN
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#define RAGE_SOUND_READER_CHAIN
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#include "RageSoundReader.h"
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#include <map>
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#include <set>
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class RageSoundReader_Chain: public SoundReader
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{
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public:
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RageSoundReader_Chain();
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~RageSoundReader_Chain();
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SoundReader *Copy() const;
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/* Set the preferred sample rate. This will only be used if the source sounds
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* use different sample rates. */
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void SetPreferredSampleRate( int iSampleRate ) { m_iPreferredSampleRate = iSampleRate; }
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/* Add the given sound to play after fOffsetSecs seconds. Takes ownership
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* of pSound. */
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bool AddSound( CString sPath, float fOffsetSecs, float fPan );
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/* Finish adding sounds. */
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void Finish();
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int GetLength() const;
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int GetLength_Fast() const;
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int SetPosition_Accurate( int ms );
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/* It rarely makes sense to set an approximate time for a chained sound, since any
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* error in overlap will become obvious. */
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int SetPosition_Fast( int ms ) { return SetPosition_Accurate( ms ); }
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int Read( char *buf, unsigned len );
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int GetSampleRate() const { return m_iActualSampleRate; }
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unsigned GetNumChannels() const { return m_iChannels; }
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bool IsStreamingFromDisk() const;
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private:
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int ReadBlock( int16_t *pBuffer, int iFrames );
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int GetSampleRateInternal() const;
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int m_iPreferredSampleRate;
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int m_iActualSampleRate;
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unsigned m_iChannels;
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map<CString, SoundReader *> m_apLoadedSounds;
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struct sound
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{
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CString sPath;
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int iOffsetMS;
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float fPan;
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int GetOffsetFrame( int iSampleRate ) const { return int( int64_t(iOffsetMS) * iSampleRate / 1000 ); }
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bool operator<( const sound &rhs ) const { return iOffsetMS < rhs.iOffsetMS; }
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};
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vector<sound> m_Sounds;
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unsigned GetNextSoundIndex() const;
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/* Read state: */
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int m_iCurrentFrame;
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unsigned m_iNextSound;
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struct ActiveSound
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{
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SoundReader *pSound;
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float fPan;
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bool operator< ( const ActiveSound &rhs ) const { return pSound < rhs.pSound; }
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};
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vector<ActiveSound> m_apActiveSounds;
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unsigned ActivateSound( const sound &s );
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void ReleaseSound( unsigned n );
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};
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#endif
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/*
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* Copyright (c) 2004 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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