mirror of
https://github.com/LMMS/lmms.git
synced 2026-06-08 14:16:07 -04:00
d35df8ee7b
* Move out of BufferPool because it's not related to memory allocation * Rewrite because memset() is not portable because it sets all bytes to zero which depends on the platform's float representation of 0.0 to be all zero bytes
85 lines
3.5 KiB
C++
85 lines
3.5 KiB
C++
/*
|
|
* MixHelpers.h - helper functions for mixing buffers
|
|
*
|
|
* Copyright (c) 2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
|
|
*
|
|
* This file is part of LMMS - https://lmms.io
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program (see COPYING); if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301 USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef MIX_HELPERS_H
|
|
#define MIX_HELPERS_H
|
|
|
|
#include "lmms_basics.h"
|
|
|
|
class ValueBuffer;
|
|
namespace MixHelpers
|
|
{
|
|
|
|
bool isSilent( const sampleFrame* src, int frames );
|
|
|
|
bool useNaNHandler();
|
|
|
|
void setNaNHandler( bool use );
|
|
|
|
void clear(sampleFrame * src, int frames);
|
|
#ifndef LMMS_DISABLE_SURROUND
|
|
void clear(surroundSampleFrame * src, int frames);
|
|
#endif
|
|
|
|
bool sanitize( sampleFrame * src, int frames );
|
|
|
|
/*! \brief Add samples from src to dst */
|
|
void add( sampleFrame* dst, const sampleFrame* src, int frames );
|
|
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc to dst */
|
|
void addMultiplied( sampleFrame* dst, const sampleFrame* src, float coeffSrc, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc to dst, swap inputs */
|
|
void addSwappedMultiplied( sampleFrame* dst, const sampleFrame* src, float coeffSrc, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc and coeffSrcBuf to dst */
|
|
void addMultipliedByBuffer( sampleFrame* dst, const sampleFrame* src, float coeffSrc, ValueBuffer * coeffSrcBuf, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc and coeffSrcBuf to dst */
|
|
void addMultipliedByBuffers( sampleFrame* dst, const sampleFrame* src, ValueBuffer * coeffSrcBuf1, ValueBuffer * coeffSrcBuf2, int frames );
|
|
|
|
/*! \brief Same as addMultiplied, but sanitize output (strip out infs/nans) */
|
|
void addSanitizedMultiplied( sampleFrame* dst, const sampleFrame* src, float coeffSrc, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc and coeffSrcBuf to dst - sanitized version */
|
|
void addSanitizedMultipliedByBuffer( sampleFrame* dst, const sampleFrame* src, float coeffSrc, ValueBuffer * coeffSrcBuf, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrc and coeffSrcBuf to dst - sanitized version */
|
|
void addSanitizedMultipliedByBuffers( sampleFrame* dst, const sampleFrame* src, ValueBuffer * coeffSrcBuf1, ValueBuffer * coeffSrcBuf2, int frames );
|
|
|
|
/*! \brief Add samples from src multiplied by coeffSrcLeft/coeffSrcRight to dst */
|
|
void addMultipliedStereo( sampleFrame* dst, const sampleFrame* src, float coeffSrcLeft, float coeffSrcRight, int frames );
|
|
|
|
/*! \brief Multiply dst by coeffDst and add samples from src multiplied by coeffSrc */
|
|
void multiplyAndAddMultiplied( sampleFrame* dst, const sampleFrame* src, float coeffDst, float coeffSrc, int frames );
|
|
|
|
/*! \brief Multiply dst by coeffDst and add samples from srcLeft/srcRight multiplied by coeffSrc */
|
|
void multiplyAndAddMultipliedJoined( sampleFrame* dst, const sample_t* srcLeft, const sample_t* srcRight, float coeffDst, float coeffSrc, int frames );
|
|
|
|
}
|
|
|
|
#endif
|
|
|