mirror of
https://github.com/LMMS/lmms.git
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fc3dfda961
Removes construction of the unused default volume model from `SamplePlayHandle`. Frequent construction of this model was causing performance slowdowns due to the model having to find and create a journaling ID in a for loop inside `ProjectJournal::allocID`, leading to the exhaustion of available IDs very quickly. There were also general improvements made to `SamplePlayHandle` (using NSDMI, removing other unused members, etc).
89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
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/*
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* SamplePlayHandle.h - play-handle for playing a sample
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*
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* Copyright (c) 2005-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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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 LMMS_SAMPLE_PLAY_HANDLE_H
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#define LMMS_SAMPLE_PLAY_HANDLE_H
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#include "Sample.h"
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#include "PlayHandle.h"
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namespace lmms
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{
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class PatternTrack;
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class SampleClip;
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class Track;
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class LMMS_EXPORT SamplePlayHandle : public PlayHandle
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{
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public:
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SamplePlayHandle(Sample* sample, bool ownAudioBusHandle = true);
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SamplePlayHandle( const QString& sampleFile );
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SamplePlayHandle( SampleClip* clip );
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~SamplePlayHandle() override;
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inline bool affinityMatters() const override
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{
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return true;
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}
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void play( SampleFrame* buffer ) override;
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bool isFinished() const override;
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bool isFromTrack( const Track * _track ) const override;
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f_cnt_t totalFrames() const;
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inline f_cnt_t framesDone() const
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{
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return( m_frame );
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}
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void setDoneMayReturnTrue( bool _enable )
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{
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m_doneMayReturnTrue = _enable;
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}
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void setPatternTrack(PatternTrack* pt)
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{
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m_patternTrack = pt;
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}
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private:
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Sample::PlaybackState m_state;
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f_cnt_t m_frame = 0;
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Sample* m_sample = nullptr;
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Track* m_track = nullptr;
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PatternTrack* m_patternTrack = nullptr;
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bool m_doneMayReturnTrue = true;
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bool m_ownAudioBusHandle = false;
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} ;
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} // namespace lmms
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#endif // LMMS_SAMPLE_PLAY_HANDLE_H
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