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/*
Rosegarden
A sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <bownie@bownie.com>
The moral right of the authors to claim authorship of this work
has been asserted.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#ifndef _SEQUENCER_DATA_BLOCK_H_
#define _SEQUENCER_DATA_BLOCK_H_
#include "ControlBlock.h"
#include "RealTime.h"
#include "MappedEvent.h"
namespace Rosegarden
{
/**
* ONLY PUT PLAIN DATA HERE - NO POINTERS EVER
* (and this struct mustn't have a constructor)
*/
struct LevelInfo
{
int level;
int levelRight; // if stereo audio
};
class MappedComposition;
#define SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS 512 // can't be a symbol
#define SEQUENCER_DATABLOCK_MAX_NB_SUBMASTERS 64 // can't be a symbol
#define SEQUENCER_DATABLOCK_RECORD_BUFFER_SIZE 1024 // MIDI events
class SequencerDataBlock
{
public:
/**
* Constructor only initialises memory if initialise is true
*/
SequencerDataBlock(bool initialise);
RealTime getPositionPointer() const {
return RealTime(m_positionSec, m_positionNsec);
}
void setPositionPointer(const RealTime &rt) {
m_positionSec = rt.sec;
m_positionNsec = rt.nsec;
}
bool getVisual(MappedEvent &ev) const;
void setVisual(const MappedEvent *ev);
int getRecordedEvents(MappedComposition &) const;
void addRecordedEvents(MappedComposition *);
bool getTrackLevel(TrackId track, LevelInfo &) const;
void setTrackLevel(TrackId track, const LevelInfo &);
// Two of these to rather hamfistedly get around the fact
// we need to fetch this value twice - once from IPB,
// and again for the Mixer.
//
bool getInstrumentLevel(InstrumentId id, LevelInfo &) const;
bool getInstrumentLevelForMixer(InstrumentId id, LevelInfo &) const;
void setInstrumentLevel(InstrumentId id, const LevelInfo &);
bool getInstrumentRecordLevel(InstrumentId id, LevelInfo &) const;
bool getInstrumentRecordLevelForMixer(InstrumentId id, LevelInfo &) const;
void setInstrumentRecordLevel(InstrumentId id, const LevelInfo &);
bool getSubmasterLevel(int submaster, LevelInfo &) const;
void setSubmasterLevel(int submaster, const LevelInfo &);
bool getMasterLevel(LevelInfo &) const;
void setMasterLevel(const LevelInfo &);
void setControlBlock(ControlBlock *cb) { m_controlBlock = cb; }
ControlBlock *getControlBlock() { return m_controlBlock; }
// Reset the temporaries on (for example) GUI restart
//
void clearTemporaries();
protected:
int instrumentToIndex(InstrumentId id) const;
int instrumentToIndexCreating(InstrumentId id);
ControlBlock *m_controlBlock;
// Two ints rather than a RealTime, as the RealTime default ctor
// initialises the space & so can't be used from the GUI's
// placement-new ctor (which has no write access and doesn't want
// it anyway). Likewise we use char[] instead of MappedEvents
int m_positionSec;
int m_positionNsec;
int m_visualEventIndex;
bool m_haveVisualEvent;
char m_visualEvent[sizeof(MappedEvent)];
int m_recordEventIndex;
char m_recordBuffer[sizeof(MappedEvent) *
SEQUENCER_DATABLOCK_RECORD_BUFFER_SIZE];
InstrumentId m_knownInstruments[SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS];
int m_knownInstrumentCount;
int m_levelUpdateIndices[SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS];
LevelInfo m_levels[SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS];
int m_recordLevelUpdateIndices[SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS];
LevelInfo m_recordLevels[SEQUENCER_DATABLOCK_MAX_NB_INSTRUMENTS];
int m_submasterLevelUpdateIndices[SEQUENCER_DATABLOCK_MAX_NB_SUBMASTERS];
LevelInfo m_submasterLevels[SEQUENCER_DATABLOCK_MAX_NB_SUBMASTERS];
int m_masterLevelUpdateIndex;
LevelInfo m_masterLevel;
};
}
#endif
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