sukibaby
9e3c7fc207
1) Set a buffer of 2MB instead of setting the buffer to nullptr and depend on it being grown by assets being loaded at the game launch 2) Update some C style code to C++ style 3) Improve Extend feature to support handling a larger number of samples, and error handling in case of a memory allocation failure
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/* RageSoundMixBuffer - Simple audio mixing. */
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#ifndef RAGE_SOUND_MIX_BUFFER_H
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#define RAGE_SOUND_MIX_BUFFER_H
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#include <cstdint>
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class RageSoundMixBuffer
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{
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public:
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RageSoundMixBuffer();
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~RageSoundMixBuffer();
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// Mix the given buffer of samples.
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void write( const float *pBuf, unsigned iSize, int iSourceStride = 1, int iDestStride = 1 );
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// Extend the buffer as if write() was called with a buffer of silence.
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void Extend( unsigned iSamples );
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void read( std::int16_t *pBuf );
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void read( float *pBuf );
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void read_deinterlace( float **pBufs, int channels );
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float *read() { return m_pMixbuf; }
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unsigned size() const { return m_iBufUsed; }
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void SetWriteOffset( int iOffset );
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private:
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float *m_pMixbuf;
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std::uint64_t m_iBufSize; // actual allocated samples
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std::uint64_t m_iBufUsed; // used samples
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int m_iOffset;
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};
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#endif
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/*
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* Copyright (c) 2002-2004 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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