Hydrogen.cpp File Reference

Data Structures
struct	compare_pNotes

Namespaces
namespace	H2Core

Functions
void	audioEngine_init ()
	Initialization of the H2Core::AudioEngine called in Hydrogen::Hydrogen(). More...
void	audioEngine_destroy ()
int	audioEngine_start (bool bLockEngine=false, unsigned nTotalFrames=0)
	If the audio engine is in state m_audioEngineState STATE_READY, this function will. More...
void	audioEngine_stop (bool bLockEngine=false)
	If the audio engine is in state m_audioEngineState STATE_PLAYING, this function will. More...
void	audioEngine_setSong (Song *pNewSong)
	Updates the global objects of the audioEngine according to new Song. More...
void	audioEngine_removeSong ()
	Does the necessary cleanup of the global objects in the audioEngine. More...
static void	audioEngine_noteOn (Note *note)
int	audioEngine_process (uint32_t nframes, void *arg)
	Main audio processing function called by the audio drivers whenever there is work to do. More...
void	audioEngine_clearNoteQueue ()
void	audioEngine_process_checkBPMChanged (Song *pSong)
	Update the tick size based on the current tempo without affecting the current transport position. More...
void	audioEngine_process_playNotes (unsigned long nframes)
void	audioEngine_process_transport (unsigned nFrames)
	Updating the TransportInfo of the audio driver. More...
unsigned	audioEngine_renderNote (Note *pNote, const unsigned &nBufferSize)
int	audioEngine_updateNoteQueue (unsigned nFrames)
	Takes all notes from the current patterns, from the MIDI queue m_midiNoteQueue, and those triggered by the metronome and pushes them onto m_songNoteQueue for playback. More...
void	audioEngine_prepNoteQueue ()
int	findPatternInTick (int nTick, bool bLoopMode, int *pPatternStartTick)
	Find a PatternList corresponding to the supplied tick position nTick. More...
void	audioEngine_seek (long long nFrames, bool bLoopMode=false)
void	audioEngine_restartAudioDrivers ()
	Restart all audio and midi drivers by calling first audioEngine_stopAudioDrivers() and then audioEngine_startAudioDrivers(). More...
void	audioEngine_startAudioDrivers ()
	Creation and initialization of all audio and MIDI drivers called in Hydrogen::Hydrogen(). More...
void	audioEngine_stopAudioDrivers ()
	Stops all audio and MIDI drivers. More...
timeval	currentTime2 ()
	Gets the current time. More...
int	randomValue (int max)
float	getGaussian (float z)
void	audioEngine_raiseError (unsigned nErrorCode)
void	audioEngine_process_clearAudioBuffers (uint32_t nFrames)
	Clear all audio buffers. More...
void	audioEngine_setupLadspaFX ()
void	audioEngine_renameJackPorts (Song *pSong)
	Hands the provided Song to JackAudioDriver::makeTrackOutputs() if pSong is not a null pointer and the audio driver m_pAudioDriver is an instance of the JackAudioDriver. More...
AudioOutput *	createDriver (const QString &sDriver)
	Create an audio driver using audioEngine_process() as its argument based on the provided choice and calling their init() function to trigger their initialization. More...

Variables
float	m_fMasterPeak_L = 0.0f
	Master peak (left channel) More...
float	m_fMasterPeak_R = 0.0f
	Master peak (right channel) More...
float	m_fProcessTime = 0.0f
	time used in process function More...
float	m_fMaxProcessTime = 0.0f
	max ms usable in process with no xrun More...
float	m_fNewBpmJTM = 120
	Fallback speed in beats per minute. More...
AudioOutput *	m_pAudioDriver = nullptr
	Pointer to the current instance of the audio driver. More...
QMutex	mutex_OutputPointer
	Mutex for locking the pointer to the audio output buffer, allowing multiple readers. More...
MidiInput *	m_pMidiDriver = nullptr
	MIDI input. More...
MidiOutput *	m_pMidiDriverOut = nullptr
	MIDI output. More...
std::priority_queue< Note *, std::deque< Note * >, compare_pNotes >	m_songNoteQueue
	Song Note FIFO. More...
std::deque< Note * >	m_midiNoteQueue
	Midi Note FIFO. More...
PatternList *	m_pNextPatterns
	Patterns to be played next in Song::PATTERN_MODE. More...
bool	m_bAppendNextPattern
	Add the next pattern to the list instead of replace. More...
bool	m_bDeleteNextPattern
	Delete the next pattern from the list. More...
PatternList *	m_pPlayingPatterns
	PatternList containing all Patterns currently played back. More...
int	m_nSongPos
	Index of the current PatternList in the Song::m_pPatternGroupSequence. More...
int	m_nSelectedPatternNumber
	Index of the pattern selected in the GUI or by a MIDI event. More...
int	m_nSelectedInstrumentNumber
	Instrument currently focused/selected in the GUI. More...
Instrument *	m_pMetronomeInstrument = nullptr
	Pointer to the metronome. More...
int	m_audioEngineState = STATE_UNINITIALIZED
	Current state of the H2Core::AudioEngine. More...
float	m_fFXPeak_L [MAX_FX]
float	m_fFXPeak_R [MAX_FX]
int	m_nPatternStartTick = -1
	Beginning of the current pattern in ticks. More...
unsigned int	m_nPatternTickPosition = 0
	Ticks passed since the beginning of the current pattern. More...
int	m_nSongSizeInTicks = 0
	Set to the total number of ticks in a Song in findPatternInTick() if Song::SONG_MODE is chosen and playback is at least in the second loop. More...
struct timeval	m_currentTickTime
	Updated in audioEngine_updateNoteQueue(). More...
unsigned long	m_nRealtimeFrames = 0
	Variable keeping track of the transport position in realtime. More...
unsigned int	m_naddrealtimenotetickposition = 0