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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2007 Christian Schoenebeck * |
* Copyright (C) 2005 - 2009 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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void AudioChannel::CopyTo(AudioChannel* pDst, const uint Samples, const float fLevel) { |
void AudioChannel::CopyTo(AudioChannel* pDst, const uint Samples, const float fLevel) { |
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if (fLevel == 1.0f) CopyTo(pDst, Samples); |
if (fLevel == 1.0f) CopyTo(pDst, Samples); |
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else { |
else { |
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#ifndef HAVE_GCC_VECTOR_EXTENSIONS |
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float* pSrcBuf = Buffer(); |
float* pSrcBuf = Buffer(); |
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float* pDstBuf = pDst->Buffer(); |
float* pDstBuf = pDst->Buffer(); |
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for (int i = 0; i < Samples; i++) |
#if HAVE_GCC_VECTOR_EXTENSIONS |
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pDstBuf[i] = pSrcBuf[i] * fLevel; |
if ((size_t)pSrcBuf % 16 == 0 && (size_t)pDstBuf % 16 == 0) { |
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#else |
const v4sf vcoeff = { fLevel, fLevel, fLevel, fLevel }; |
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const v4sf vcoeff = { fLevel, fLevel, fLevel, fLevel }; |
const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
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const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
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v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
const int cells = Samples / 4; |
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const int cells = Samples / 4; |
for (int i = 0; i < cells; ++i) |
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for (int i = 0; i < cells; ++i) |
dst[i] = src[i] * vcoeff; |
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dst[i] = src[i] * vcoeff; |
} else { |
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#endif |
#endif |
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for (int i = 0; i < Samples; i++) |
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pDstBuf[i] = pSrcBuf[i] * fLevel; |
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#if HAVE_GCC_VECTOR_EXTENSIONS |
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} |
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#endif |
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} |
} |
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} |
} |
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* @param Samples - amount of sample points to be mixed over |
* @param Samples - amount of sample points to be mixed over |
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*/ |
*/ |
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void AudioChannel::MixTo(AudioChannel* pDst, const uint Samples) { |
void AudioChannel::MixTo(AudioChannel* pDst, const uint Samples) { |
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#ifndef HAVE_GCC_VECTOR_EXTENSIONS |
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float* pSrcBuf = Buffer(); |
float* pSrcBuf = Buffer(); |
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float* pDstBuf = pDst->Buffer(); |
float* pDstBuf = pDst->Buffer(); |
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for (int i = 0; i < Samples; i++) |
#if HAVE_GCC_VECTOR_EXTENSIONS |
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pDstBuf[i] += pSrcBuf[i]; |
if ((size_t)pSrcBuf % 16 == 0 && (size_t)pDstBuf % 16 == 0) { |
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#else |
const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
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const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
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v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
const int cells = Samples / 4; |
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const int cells = Samples / 4; |
for (int i = 0; i < cells; ++i) |
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for (int i = 0; i < cells; ++i) |
dst[i] += src[i]; |
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dst[i] += src[i]; |
} else { |
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#endif |
#endif |
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for (int i = 0; i < Samples; i++) |
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pDstBuf[i] += pSrcBuf[i]; |
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#if HAVE_GCC_VECTOR_EXTENSIONS |
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} |
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#endif |
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} |
} |
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/** |
/** |
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void AudioChannel::MixTo(AudioChannel* pDst, const uint Samples, const float fLevel) { |
void AudioChannel::MixTo(AudioChannel* pDst, const uint Samples, const float fLevel) { |
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if (fLevel == 1.0f) MixTo(pDst, Samples); |
if (fLevel == 1.0f) MixTo(pDst, Samples); |
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else { |
else { |
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#ifndef HAVE_GCC_VECTOR_EXTENSIONS |
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float* pSrcBuf = Buffer(); |
float* pSrcBuf = Buffer(); |
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float* pDstBuf = pDst->Buffer(); |
float* pDstBuf = pDst->Buffer(); |
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for (int i = 0; i < Samples; i++) |
#if HAVE_GCC_VECTOR_EXTENSIONS |
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pDstBuf[i] += pSrcBuf[i] * fLevel; |
if ((size_t)pSrcBuf % 16 == 0 && (size_t)pDstBuf % 16 == 0) { |
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#else |
const v4sf vcoeff = { fLevel, fLevel, fLevel, fLevel }; |
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const v4sf vcoeff = { fLevel, fLevel, fLevel, fLevel }; |
const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
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const v4sf* src = static_cast<v4sf*>((void*)Buffer()); |
v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
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v4sf* dst = static_cast<v4sf*>((void*)pDst->Buffer()); |
const int cells = Samples / 4; |
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const int cells = Samples / 4; |
for (int i = 0; i < cells; ++i) |
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for (int i = 0; i < cells; ++i) |
dst[i] += src[i] * vcoeff; |
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dst[i] += src[i] * vcoeff; |
} else { |
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#endif |
#endif |
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for (int i = 0; i < Samples; i++) |
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pDstBuf[i] += pSrcBuf[i] * fLevel; |
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#if HAVE_GCC_VECTOR_EXTENSIONS |
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} |
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#endif |
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} |
} |
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} |
} |
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