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optimized envelope and LFO computations

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@374 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
Javier Serrano Polo
2006-08-27 21:42:39 +00:00
parent 17eed98376
commit 3eb581b76c
2 changed files with 50 additions and 21 deletions
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12
include/envelope_and_lfo_widget.h
View File

@@ -87,9 +87,9 @@ public:
static void triggerLFO( engine * _engine );
static void resetLFO( engine * _engine );
float FASTCALL level( f_cnt_t _frame,
void FASTCALL fillLevel( float * _buf, f_cnt_t _frame,
const f_cnt_t _release_begin,
const f_cnt_t _frame_offset );
const fpab_t _frames );
inline bool used( void ) const
{
@@ -125,8 +125,8 @@ protected:
virtual void mousePressEvent( QMouseEvent * _me );
virtual void paintEvent( QPaintEvent * _pe );
float FASTCALL lfoLevel( f_cnt_t _frame,
const f_cnt_t _frame_offset ) const;
void FASTCALL fillLFOLevel( float * _buf, f_cnt_t _frame,
const fpab_t _frames );
protected slots:
@@ -181,6 +181,7 @@ private:
float m_lfoAmount;
bool m_lfoAmountIsZero;
sample_t * m_lfoShapeData;
bool m_bad_lfoShapeData;
sampleBuffer m_userWave;
enum lfoShapes
@@ -194,6 +195,9 @@ private:
QMutex m_busyMutex;
sample_t lfoShapeSample( fpab_t _frame_offset );
void updateLFOShapeData( void );
friend class envelopeTabWidget;

59
src/core/envelope_tab_widget.cpp
View File

@@ -238,9 +238,10 @@ float FASTCALL envelopeTabWidget::volumeLevel( notePlayHandle * _n,
release_begin += eng()->getMixer()->framesPerAudioBuffer();
}
float volume_level;
m_envLFOWidgets[VOLUME]->lock();
float volume_level =
m_envLFOWidgets[VOLUME]->level( _frame, release_begin, 0 );
m_envLFOWidgets[VOLUME]->fillLevel( &volume_level, _frame,
release_begin, 1 );
m_envLFOWidgets[VOLUME]->unlock();
return( volume_level );
@@ -286,6 +287,29 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
m_envLFOWidgets[CUT]->lock();
m_envLFOWidgets[RES]->lock();
float * vol_buf = NULL;
float * cut_buf = NULL;
float * res_buf = NULL;
if( m_envLFOWidgets[VOLUME]->used() )
{
vol_buf = new float[_frames];
m_envLFOWidgets[VOLUME]->fillLevel( vol_buf, total_frames,
release_begin, _frames );
}
if( m_envLFOWidgets[CUT]->used() )
{
cut_buf = new float[_frames];
m_envLFOWidgets[CUT]->fillLevel( cut_buf, total_frames,
release_begin, _frames );
}
if( m_envLFOWidgets[RES]->used() )
{
res_buf = new float[_frames];
m_envLFOWidgets[RES]->fillLevel( res_buf, total_frames,
release_begin, _frames );
}
if( m_filterGroupBox->isActive() )
{
int old_filter_cut = 0;
@@ -302,12 +326,11 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
for( fpab_t frame = 0; frame < _frames;
++frame, ++total_frames )
{
float new_cut_val = m_envLFOWidgets[CUT]->level( total_frames, release_begin, frame );
new_cut_val = envelopeAndLFOWidget::expKnobVal( new_cut_val ) * CUT_FREQ_MULTIPLIER +
float new_cut_val = envelopeAndLFOWidget::expKnobVal( cut_buf[frame] ) * CUT_FREQ_MULTIPLIER +
m_filterCutKnob->value();
float new_res_val = m_filterResKnob->value() + RES_MULTIPLIER *
m_envLFOWidgets[RES]->level( total_frames, release_begin, frame );
res_buf[frame];
if( static_cast<int>( new_cut_val ) != old_filter_cut ||
static_cast<int>( new_res_val*RES_PRECISION ) != old_filter_res )
@@ -317,7 +340,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
old_filter_res = static_cast<int>( new_res_val*RES_PRECISION );
}
float vol_level = m_envLFOWidgets[VOLUME]->level( total_frames, release_begin, frame );
float vol_level = vol_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
@@ -330,8 +353,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
{
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float new_cut_val = m_envLFOWidgets[CUT]->level( total_frames, release_begin, frame );
new_cut_val = envelopeAndLFOWidget::expKnobVal( new_cut_val ) * CUT_FREQ_MULTIPLIER +
float new_cut_val = envelopeAndLFOWidget::expKnobVal( cut_buf[frame] ) * CUT_FREQ_MULTIPLIER +
m_filterCutKnob->value();
if( static_cast<int>( new_cut_val ) != old_filter_cut )
@@ -340,7 +362,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
old_filter_cut = static_cast<int>( new_cut_val );
}
float vol_level = m_envLFOWidgets[VOLUME]->level( total_frames, release_begin, frame );
float vol_level = vol_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
@@ -355,7 +377,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float new_res_val = m_filterResKnob->value() + RES_MULTIPLIER *
m_envLFOWidgets[RES]->level( total_frames, release_begin, frame );
res_buf[frame];
if( static_cast<int>( new_res_val*RES_PRECISION ) != old_filter_res )
{
@@ -363,7 +385,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
old_filter_res = static_cast<int>( new_res_val*RES_PRECISION );
}
float vol_level = m_envLFOWidgets[VOLUME]->level( total_frames, release_begin, frame );
float vol_level = vol_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
@@ -377,8 +399,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
{
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float new_cut_val = m_envLFOWidgets[CUT]->level( total_frames, release_begin, frame );
new_cut_val = envelopeAndLFOWidget::expKnobVal( new_cut_val ) * CUT_FREQ_MULTIPLIER +
float new_cut_val = envelopeAndLFOWidget::expKnobVal( cut_buf[frame] ) * CUT_FREQ_MULTIPLIER +
m_filterCutKnob->value();
if( static_cast<int>( new_cut_val ) != old_filter_cut )
@@ -398,7 +419,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float new_res_val = m_filterResKnob->value() + RES_MULTIPLIER *
m_envLFOWidgets[RES]->level( total_frames, release_begin, frame );
res_buf[frame];
if( static_cast<int>( new_res_val*RES_PRECISION ) != old_filter_res )
{
@@ -418,7 +439,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float vol_level = m_envLFOWidgets[VOLUME]->level( total_frames, release_begin, frame );
float vol_level = vol_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
@@ -445,7 +466,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
// only use volume-envelope...
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float vol_level = m_envLFOWidgets[VOLUME]->level( total_frames, release_begin, frame );
float vol_level = vol_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
{
@@ -458,7 +479,7 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
// only use panning-envelope...
for( fpab_t frame = 0; frame < _frames; ++frame, ++total_frames )
{
float vol_level = m_envLFOWidgets[PANNING]->level( total_frames, release_begin, frame );
float vol_level = pan_buf[frame];
vol_level = vol_level*vol_level;
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
{
@@ -467,6 +488,10 @@ void envelopeTabWidget::processAudioBuffer( sampleFrame * _ab,
}
}*/
delete[] vol_buf;
delete[] cut_buf;
delete[] res_buf;
m_envLFOWidgets[RES]->unlock();
m_envLFOWidgets[CUT]->unlock();
m_envLFOWidgets[VOLUME]->unlock();