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71dd300f43
Make instruments report their release time in milliseconds so that it becomes independent of the sample rate and sounds the same at any sample rate. Technically this is done by removing the virtual keyword from `desiredReleaseFrames` so that it cannot be overridden anymore. The method now only serves to compute the number of frames from the given release time in milliseconds. A new virtual method `desiredReleaseTimeMs` is added which instruments can override. The default returns 0 ms just like the default implementation previously returned 0 frames. The method `computeReleaseTimeMsByFrameCount` is added for instruments that still use a hard coded release in frames. As of now this is only `SidInstrument`. Add the helper method `getSampleRate` to `Instrument`. Adjust several instruments to report their release times in milliseconds. The times are computed by taking the release in frames and assuming a sample rate of 44.1 kHz. In most cases the times are rounded to a "nice" next value, e.g.: * 64 frames -> 1.5 ms (66 frames) * 128 frames -> 3.0 ms (132 frames) * 512 frames -> 12. ms (529 frames) * 1000 frames -> 23 ms (1014 samples) In parentheses the number of frames are shown which result from the rounded number of milliseconds when converted back assuming a sample rate of 44.1 kHz. The difference should not be noticeable in existing projects. Remove the overrides for instruments that return the same value as the base class `Instrument` anyway. These are: * GigPlayer * Lb302 * Sf2Player For `MonstroInstrument` the implementation is adjusted to behave in a very similar way. First the maximum of the envelope release times is computed. These are already available in milliseconds. Then the maximum of that value and 1.5 ms is taken and returned as the result.
168 lines
3.4 KiB
C++
168 lines
3.4 KiB
C++
/*
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* BitInvader.h - declaration of class BitInvader and BSynth which
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* are a wavetable synthesizer
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*
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* Copyright (c) 2006-2008 Andreas Brandmaier <andy/at/brandmaier/dot/de>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef BIT_INVADER_H
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#define BIT_INVADER_H
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#include "AutomatableModel.h"
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#include "Instrument.h"
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#include "InstrumentView.h"
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#include "Graph.h"
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namespace lmms
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{
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namespace gui
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{
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class BitInvaderView;
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class Knob;
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class LedCheckBox;
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class PixmapButton;
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}
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class BSynth
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{
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public:
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BSynth( float * sample, NotePlayHandle * _nph,
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bool _interpolation, float factor,
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const sample_rate_t _sample_rate );
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virtual ~BSynth();
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sample_t nextStringSample( float sample_length );
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private:
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int sample_index;
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float sample_realindex;
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float* sample_shape;
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NotePlayHandle* nph;
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const sample_rate_t sample_rate;
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bool interpolation;
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} ;
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class BitInvader : public Instrument
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{
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Q_OBJECT
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public:
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BitInvader(InstrumentTrack * _instrument_track );
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~BitInvader() override = default;
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void playNote( NotePlayHandle * _n,
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sampleFrame * _working_buffer ) override;
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void deleteNotePluginData( NotePlayHandle * _n ) override;
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void saveSettings( QDomDocument & _doc,
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QDomElement & _parent ) override;
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void loadSettings( const QDomElement & _this ) override;
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QString nodeName() const override;
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float desiredReleaseTimeMs() const override
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{
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return 1.5f;
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}
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gui::PluginView * instantiateView( QWidget * _parent ) override;
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protected slots:
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void lengthChanged();
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void samplesChanged( int, int );
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void normalize();
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private:
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FloatModel m_sampleLength;
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graphModel m_graph;
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BoolModel m_interpolation;
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BoolModel m_normalize;
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float m_normalizeFactor;
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friend class gui::BitInvaderView;
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} ;
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namespace gui
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{
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class BitInvaderView : public InstrumentViewFixedSize
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{
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Q_OBJECT
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public:
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BitInvaderView( Instrument * _instrument,
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QWidget * _parent );
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~BitInvaderView() override = default;
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protected slots:
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//void sampleSizeChanged( float _new_sample_length );
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void interpolationToggled( bool value );
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void normalizeToggled( bool value );
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void sinWaveClicked();
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void triangleWaveClicked();
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void sqrWaveClicked();
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void sawWaveClicked();
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void noiseWaveClicked();
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void usrWaveClicked();
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void smoothClicked( );
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private:
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void modelChanged() override;
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Knob * m_sampleLengthKnob;
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PixmapButton * m_sinWaveBtn;
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PixmapButton * m_triangleWaveBtn;
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PixmapButton * m_sqrWaveBtn;
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PixmapButton * m_sawWaveBtn;
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PixmapButton * m_whiteNoiseWaveBtn;
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PixmapButton * m_smoothBtn;
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PixmapButton * m_usrWaveBtn;
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static QPixmap * s_artwork;
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Graph * m_graph;
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LedCheckBox * m_interpolationToggle;
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LedCheckBox * m_normalizeToggle;
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} ;
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} // namespace gui
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} // namespace lmms
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#endif
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