From 0c00a2229d7ec138af9b25921430ee58aeb52de0 Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Wed, 16 May 2018 09:46:09 +0200 Subject: Minor GainControl refactoring --- src/GainControl.cpp | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'src') diff --git a/src/GainControl.cpp b/src/GainControl.cpp index 5657fc2..07660ff 100644 --- a/src/GainControl.cpp +++ b/src/GainControl.cpp @@ -114,6 +114,8 @@ int GainControl::internal_process(Buffer* const dataIn, Buffer* dataOut) } } + const float constantGain = m_normalise * m_digGain; + #ifdef __SSE__ const __m128* in = reinterpret_cast(dataIn->getData()); __m128* out = reinterpret_cast<__m128*>(dataOut->getData()); @@ -128,9 +130,11 @@ int GainControl::internal_process(Buffer* const dataIn, Buffer* dataOut) "GainControl::process input size not valid!"); } + const auto constantGain4 = _mm_set1_ps(constantGain); + for (size_t i = 0; i < sizeIn; i += m_frameSize) { gain128.m = computeGain(in, m_frameSize); - gain128.m = _mm_mul_ps(gain128.m, _mm_set1_ps(m_normalise * m_digGain)); + gain128.m = _mm_mul_ps(gain128.m, constantGain4); PDEBUG("********** Gain: %10f **********\n", gain128.f[0]); @@ -158,7 +162,7 @@ int GainControl::internal_process(Buffer* const dataIn, Buffer* dataOut) } for (size_t i = 0; i < sizeIn; i += m_frameSize) { - gain = m_normalise * m_digGain * computeGain(in, m_frameSize); + gain = constantGain * computeGain(in, m_frameSize); PDEBUG("********** Gain: %10f **********\n", gain); @@ -402,10 +406,10 @@ float GainControl::computeGainVar(const complexf* in, size_t sizeIn) mean = complexf(0.0f, 0.0f); for (size_t sample = 0; sample < sizeIn; ++sample) { - complexf delta = in[sample] - mean; - float i = sample + 1; - complexf q = delta / i; - mean = mean + q; + const complexf delta = in[sample] - mean; + const float i = sample + 1; + const complexf q = delta / i; + mean += q; /* printf("F %zu, %.2f+%.2fj\t", @@ -424,7 +428,7 @@ float GainControl::computeGainVar(const complexf* in, size_t sizeIn) var1 = complexf(0.0f, 0.0f); var2 = complexf(0.0f, 0.0f); for (size_t sample = 0; sample < sizeIn; ++sample) { - complexf diff = in[sample] - mean; + const complexf diff = in[sample] - mean; complexf delta; complexf q; -- cgit v1.2.3