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https://github.com/LMMS/lmms.git
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0faaab4521
Use QList instead of QVector when using a set of PlayHandle's. QList
has faster insert/remove operations and in most cases we iterate through
the array using iterators so there's no performance drop.
Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
(cherry picked from commit 2cc49b8010)
105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
/*
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* play_handle.h - base-class playHandle - core of rendering engine
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*
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* Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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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 _PLAY_HANDLE_H
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#define _PLAY_HANDLE_H
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#include <QtCore/QThread>
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#include <QtCore/QVector>
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#include "lmms_basics.h"
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class track;
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class playHandle
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{
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public:
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enum types
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{
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NotePlayHandle,
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InstrumentPlayHandle,
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SamplePlayHandle,
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PresetPreviewHandle
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} ;
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playHandle( const types _type, f_cnt_t _offset = 0 ) :
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m_type( _type ),
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m_offset( _offset ),
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m_affinity( QThread::currentThread() )
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{
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}
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virtual inline ~playHandle()
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{
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}
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virtual inline bool affinityMatters( void ) const
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{
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return false;
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}
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const QThread * affinity( void ) const
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{
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return m_affinity;
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}
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inline types type( void ) const
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{
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return m_type;
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}
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virtual void play( sampleFrame * _working_buffer ) = 0;
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virtual bool done( void ) const = 0;
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// returns how many frames this play-handle is aligned ahead, i.e.
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// at which position it is inserted in the according buffer
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inline f_cnt_t offset( void ) const
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{
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return m_offset;
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}
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inline void setOffset( f_cnt_t _offset )
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{
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m_offset = _offset;
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}
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virtual bool isFromTrack( const track * _track ) const = 0;
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private:
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types m_type;
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f_cnt_t m_offset;
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const QThread * m_affinity;
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} ;
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typedef QList<playHandle *> PlayHandleList;
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typedef QList<const playHandle *> ConstPlayHandleList;
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#endif
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