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Merge pull request #2 from curlymorphic/master

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rebase from master
This commit is contained in:
Dave
2014-12-13 16:10:20 +00:00
parent 08821a7290 a774e5dabe
commit 0f6a2e5732
5 changed files with 56 additions and 22 deletions
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13
plugins/Bitcrush/Bitcrush.cpp
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@@ -30,6 +30,8 @@ const int OS_RATE = 5;
const float OS_RATIO = 1.0f / OS_RATE;
const float CUTOFF_RATIO = 0.353553391f;
const int SILENCEFRAMES = 10;
const float OS_RESAMPLE [5] = { 0.0001490062883964112, 0.1645978376763992, 0.6705063120704088,
0.1645978376763992, 0.0001490062883964112 };
extern "C"
{
@@ -78,7 +80,7 @@ void BitcrushEffect::sampleRateChanged()
{
m_sampleRate = Engine::mixer()->processingSampleRate();
m_filter.setSampleRate( m_sampleRate );
m_filter.setLowpass( m_sampleRate * CUTOFF_RATIO );
m_filter.setLowpass( m_sampleRate * ( CUTOFF_RATIO * OS_RATIO ) );
m_needsUpdate = true;
}
@@ -95,6 +97,11 @@ inline float BitcrushEffect::noise( float amt )
bool BitcrushEffect::processAudioBuffer( sampleFrame* buf, const fpp_t frames )
{
if( !isEnabled() || !isRunning () )
{
return( false );
}
// update values
if( m_needsUpdate || m_controls.m_rateEnabled.isValueChanged() )
{
@@ -219,8 +226,8 @@ bool BitcrushEffect::processAudioBuffer( sampleFrame* buf, const fpp_t frames )
float rsum = 0.0f;
for( int o = 0; o < OS_RATE; ++o )
{
lsum += m_buffer[f * OS_RATE + o][0] * OS_RATIO;
rsum += m_buffer[f * OS_RATE + o][1] * OS_RATIO;
lsum += m_buffer[f * OS_RATE + o][0] * OS_RESAMPLE[o];
rsum += m_buffer[f * OS_RATE + o][1] * OS_RESAMPLE[o];
}
buf[f][0] = d * buf[f][0] + w * qBound( -m_outClip, lsum, m_outClip ) * m_outGain;
buf[f][1] = d * buf[f][1] + w * qBound( -m_outClip, rsum, m_outClip ) * m_outGain;