Files
itgmania212121/src/RageSoundReader_Chain.h
T
2011-03-17 01:47:30 -04:00

102 lines
3.3 KiB
C++

/* RageSoundReader_Chain - Chain sounds together */
#ifndef RAGE_SOUND_READER_CHAIN
#define RAGE_SOUND_READER_CHAIN
#include "RageSoundReader.h"
#include <map>
class RageSoundReader_Chain: public RageSoundReader
{
public:
RageSoundReader_Chain();
~RageSoundReader_Chain();
RageSoundReader_Chain *Copy() const;
/* Set the preferred sample rate. This will only be used if the source sounds
* use different sample rates. */
void SetPreferredSampleRate( int iSampleRate ) { m_iPreferredSampleRate = iSampleRate; }
int LoadSound( RString sPath );
int LoadSound( RageSoundReader *pSound );
/* Add the given sound to play after fOffsetSecs seconds. Takes ownership
* of pSound. */
void AddSound( int iIndex, float fOffsetSecs, float fPan );
/* Finish adding sounds. */
void Finish();
/* Return the number of added sounds. */
int GetNumSounds() const { return m_aSounds.size(); }
int GetLength() const;
int GetLength_Fast() const;
int SetPosition( int iFrame );
int Read( float *pBuf, int iFrames );
int GetSampleRate() const { return m_iActualSampleRate; }
unsigned GetNumChannels() const { return m_iChannels; }
bool SetProperty( const RString &sProperty, float fValue );
int GetNextSourceFrame() const;
float GetStreamToSourceRatio() const;
RString GetError() const { return ""; }
private:
int GetSampleRateInternal() const;
int m_iPreferredSampleRate;
int m_iActualSampleRate;
unsigned m_iChannels;
map<RString, RageSoundReader *> m_apNamedSounds;
vector<RageSoundReader *> m_apLoadedSounds;
struct Sound
{
int iIndex; // into m_apLoadedSounds
int iOffsetMS;
float fPan;
RageSoundReader *pSound; // NULL if not activated
int GetOffsetFrame( int iSampleRate ) const { return int( int64_t(iOffsetMS) * iSampleRate / 1000 ); }
bool operator<( const Sound &rhs ) const { return iOffsetMS < rhs.iOffsetMS; }
};
vector<Sound> m_aSounds;
/* Read state: */
int m_iCurrentFrame;
unsigned m_iNextSound;
vector<Sound *> m_apActiveSounds;
void ActivateSound( Sound *s );
void ReleaseSound( Sound *s );
};
#endif
/*
* Copyright (c) 2004-2006 Glenn Maynard
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, and/or sell copies of the Software, and to permit persons to
* whom the Software is furnished to do so, provided that the above
* copyright notice(s) and this permission notice appear in all copies of
* the Software and that both the above copyright notice(s) and this
* permission notice appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/