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out-of-line inline's for performance critical member functions

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Craig Hansen-Sturm 2014-09-15 18:38:32 -07:00
parent 7a9cf193b4
commit d8a4d71b08
1 changed files with 59 additions and 0 deletions
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libraries/audio/src/AudioSourceTone.cpp Normal file
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//
// AudioSourceTone.cpp
// hifi
//
// Created by Craig Hansen-Sturm on 8/10/14.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include <assert.h>
#include <math.h>
#include <SharedUtil.h>
#include "AudioRingBuffer.h"
#include "AudioFormat.h"
#include "AudioBuffer.h"
#include "AudioSourceTone.h"
AudioSourceTone::AudioSourceTone() {
initialize();
}
AudioSourceTone::~AudioSourceTone() {
finalize();
}
void AudioSourceTone::finalize() {
}
void AudioSourceTone::reset() {
}
inline void AudioSourceTone::updateCoefficients() {
_omega = _frequency / _sampleRate * TWO_PI;
_epsilon = 2.0f * sinf(_omega / 2.0f);
_yq1 = cosf(-1.0f * _omega);
_y1 = sinf(+1.0f * _omega);
}
inline void AudioSourceTone::initialize() {
const float32_t FREQUENCY_220_HZ = 220.0f;
const float32_t GAIN_MINUS_3DB = 0.708f;
setParameters(SAMPLE_RATE, FREQUENCY_220_HZ, GAIN_MINUS_3DB);
}
inline void AudioSourceTone::setParameters(const float32_t sampleRate, const float32_t frequency, const float32_t amplitude) {
_sampleRate = std::max(sampleRate, 1.0f);
_frequency = std::max(frequency, 1.0f);
_amplitude = std::max(amplitude, 1.0f);
updateCoefficients();
}
inline void AudioSourceTone::getParameters(float32_t& sampleRate, float32_t& frequency, float32_t& amplitude) {
sampleRate = _sampleRate;
frequency = _frequency;
amplitude = _amplitude;
}