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itgmania212121/stepmania/src/RageSoundReader.cpp
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#include "global.h"
#include "RageSoundReader.h"
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#include "RageLog.h"
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#include "RageUtil_AutoPtr.h"
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REGISTER_CLASS_TRAITS( RageSoundReader, pCopy->Copy() );
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/* Read(), handling the STREAM_LOOPED and empty return cases. */
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int RageSoundReader::RetriedRead( float *pBuffer, int iFrames, int *iSourceFrame, float *fRate )
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{
if( iFrames == 0 )
return 0;
/* pReader may return 0, which means "try again immediately". As a failsafe,
* only try this a finite number of times. Use a high number, because in
* principle each filter in the stack may cause this. */
int iTries = 100;
while( --iTries )
{
if( fRate )
*fRate = this->GetStreamToSourceRatio();
if( iSourceFrame )
*iSourceFrame = this->GetNextSourceFrame();
int iGotFrames = this->Read( pBuffer, iFrames );
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if( iGotFrames == RageSoundReader::STREAM_LOOPED )
iGotFrames = 0;
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if( iGotFrames != 0 )
return iGotFrames;
}
LOG->Warn( "Read() busy looping" );
/* Pretend we got EOF. */
return RageSoundReader::END_OF_FILE;
}
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/*
* Copyright (c) 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.
*/