78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/*
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//#######################################################################################
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//Class to insert Midiclock messages into a given MidiBuffer, suitable for block
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//based audio callbacks. The class can act on position jumps e.g. "Loops" by sending a
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//positioning message.
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//NOTE: No ballistik came in to play so I wouldn't recommend using it to drive a mechanical
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//tape deck!!!
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//
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//solar3d-software, April- 10- 2012
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//#######################################################################################
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*/
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#ifndef __JK_MIDICLOCK
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#define __JK_MIDICLOCK
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#include <JuceHeader.h>
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//#include "Includes.h"
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class JK_MidiClock
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{
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public:
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JK_MidiClock();
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void setPositionJumpThreshold(const double ms) {m_posChangeThreshold = ms / 1000.0;}
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double getPositionJumpThreshold() {return m_posChangeThreshold;}
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void setFollowSongPosition(const bool shouldFollow) {m_followSongPosition = shouldFollow;}
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bool getFollowSongPosition() {return m_followSongPosition;}
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void setOffset(const int offset) {m_ppqOffset = offset;}
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int getOffset() {return m_ppqOffset;}
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void generateMidiclock(const AudioPlayHead::CurrentPositionInfo &lastPosInfo,
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MidiBuffer* midiBuffer,
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const int bufferSize,
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const double sampleRate);
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//=================================================================================================
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juce_UseDebuggingNewOperator
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private:
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inline int64 roundToInt64 (const double val) noexcept
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{
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return (val - floor(val) >= 0.5) ? (int64)(ceil(val)) : (int64)(floor(val));
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}
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bool m_wasPlaying;
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double m_syncPpqPosition;
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double m_posChangeThreshold;
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double m_ppqToStartSyncAt;
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bool m_followSongPosition;
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uint8 m_syncFlag;
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int m_ppqOffset;
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double m_last_sample_pos_sync;
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double m_last_ppq_pos_host;
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double m_last_syncPpqPosition;
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double m_syncSamplePos;
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double m_syncNext_smp_f;
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static const int cycleEnd_ = 1;
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static const int startSlave_ = 2;
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ScopedPointer <MidiMessage> m_clockMessage;
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ScopedPointer <MidiMessage> m_continueMessage;
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ScopedPointer <MidiMessage> m_stopMessage;
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ScopedPointer <MidiMessage> m_songPositionMessage;
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void sendSongPositionPointerMessage(const double ppqPosition, const int posInBuffer, MidiBuffer* buffer);
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bool positionJumped(const double lastPosInPPQ, const double currentPosInPPQ,
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const double sampleRate, const double ppqPerSample);
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double getNearestSixteenthInPPQ(const double ppqPosition) {return ceil(ppqPosition * 4.0) / 4.0;}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(JK_MidiClock);
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};
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#endif
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