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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005-2008 Christian Schoenebeck * |
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* Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (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 * |
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* GNU 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 License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#ifndef __LS_ABSTRACTENGINECHANNEL_H__ |
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#define __LS_ABSTRACTENGINECHANNEL_H__ |
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#include "EngineChannel.h" |
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#include "AbstractEngine.h" |
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#include "../common/Pool.h" |
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#include "../common/RingBuffer.h" |
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namespace LinuxSampler { |
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class AbstractEngineChannel: public EngineChannel { |
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public: |
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// implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel' |
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virtual void PrepareLoadInstrument(const char* FileName, uint Instrument); |
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virtual void Reset(); |
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virtual void SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel); |
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virtual void SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos); |
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virtual void SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel); |
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virtual void SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos); |
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virtual void SendPitchbend(int Pitch, uint8_t MidiChannel); |
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virtual void SendPitchbend(int Pitch, uint8_t MidiChannel, int32_t FragmentPos); |
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virtual void SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel); |
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virtual void SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel, int32_t FragmentPos); |
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virtual bool StatusChanged(bool bNewStatus = false); |
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virtual float Volume(); |
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virtual void Volume(float f); |
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virtual float Pan(); |
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virtual void Pan(float f); |
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virtual uint Channels(); |
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virtual AudioOutputDevice* GetAudioOutputDevice(); |
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virtual void SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel); |
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virtual int OutputChannel(uint EngineAudioChannel); |
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virtual void Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel); |
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virtual void DisconnectMidiInputPort(); |
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virtual MidiInputPort* GetMidiInputPort(); |
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virtual midi_chan_t MidiChannel(); |
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virtual String InstrumentFileName(); |
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virtual String InstrumentName(); |
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virtual int InstrumentIndex(); |
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virtual int InstrumentStatus(); |
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virtual LinuxSampler::Engine* GetEngine(); |
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virtual String EngineName(); |
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virtual FxSend* AddFxSend(uint8_t MidiCtrl, String Name = "") throw (Exception); |
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virtual FxSend* GetFxSend(uint FxSendIndex); |
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virtual uint GetFxSendCount(); |
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virtual void RemoveFxSend(FxSend* pFxSend); |
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virtual void Connect(VirtualMidiDevice* pDevice); |
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virtual void Disconnect(VirtualMidiDevice* pDevice); |
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virtual AbstractEngine::Format GetEngineFormat() = 0; |
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friend class AbstractVoice; |
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friend class AbstractEngine; |
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template<class TV, class TRR, class TR, class TD, class TIM, class TI> friend class EngineBase; |
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template<class EC, class R, class S, class D> friend class VoiceBase; |
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protected: |
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AbstractEngineChannel(); |
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virtual ~AbstractEngineChannel(); |
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AbstractEngine* pEngine; |
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public: // TODO: should be protected |
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AudioChannel* pChannelLeft; ///< encapsulates the audio rendering buffer (left) |
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AudioChannel* pChannelRight; ///< encapsulates the audio rendering buffer (right) |
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protected: |
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int AudioDeviceChannelLeft; ///< audio device channel number to which the left channel is connected to |
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int AudioDeviceChannelRight; ///< audio device channel number to which the right channel is connected to |
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MidiInputPort* pMidiInputPort; ///< Points to the connected MIDI input port or NULL if none assigned. |
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midi_chan_t midiChannel; ///< MIDI channel(s) on which this engine channel listens to. |
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RingBuffer<Event,false>* pEventQueue; ///< Input event queue. |
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RTList<Event>* pEvents; ///< All engine channel specific events for the current audio fragment. |
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uint8_t ControllerTable[129]; ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel. Number 128 is for channel pressure (mono aftertouch). |
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String InstrumentFile; |
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int InstrumentIdx; |
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String InstrumentIdxName; |
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int InstrumentStat; |
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double GlobalVolume; ///< Master volume factor set through the C++ API / LSCP (a value < 1.0 means attenuation, a value > 1.0 means amplification) |
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double MidiVolume; ///< Volume factor altered by MIDI CC#7 (a value < 1.0 means attenuation, a value > 1.0 means amplification) |
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float GlobalPanLeft; |
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float GlobalPanRight; |
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int Pitch; ///< Current (absolute) MIDI pitch value. |
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float CurrentKeyDimension; ///< Current value (0-1.0) for the keyboard dimension, altered by pressing a keyswitching key. |
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bool PortamentoMode; ///< in Portamento Mode we slide the pitch from the last note to the current note. |
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float PortamentoTime; ///< How long it will take to glide from the previous note to the current (in seconds) |
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float PortamentoPos; ///< Current position on the keyboard, that is integer and fractional part (only used if PortamentoMode is on) |
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std::vector<FxSend*> fxSends; |
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int GlobalTranspose; ///< amount of semi tones all notes should be transposed |
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int iLastPanRequest; ///< just for the return value of Pan(), so we don't have to make an injective function |
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int iEngineIndexSelf; ///< Reflects the index of this EngineChannel in the Engine's ArrayList. |
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bool bStatusChanged; ///< true in case an engine parameter has changed (e.g. new instrument, another volumet) |
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uint32_t RoundRobinIndex; ///< counter for round robin sample selection, incremented for each note on |
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SynchronizedConfig< ArrayList<VirtualMidiDevice*> > virtualMidiDevices; |
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SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_AudioThread; |
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SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_MidiThread; |
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// specialization of RTList that doesn't require the pool |
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// to be provided at construction time |
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template<typename T> |
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class LazyList : public RTList<T> { |
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public: |
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using RTList<T>::allocAppend; |
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using RTList<T>::pPool; |
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LazyList() : RTList<T>(0) { } |
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typename RTList<T>::Iterator allocAppend(Pool<T>* pool) { |
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pPool = pool; |
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return allocAppend(); |
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} |
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}; |
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typedef std::map<uint, LazyList<Event>*> ActiveKeyGroupMap; |
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ActiveKeyGroupMap ActiveKeyGroups; ///< Contains event queues for key groups, ordered by key group ID. |
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virtual void ResetControllers(); |
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virtual void ResetInternal(); |
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virtual void RemoveAllFxSends(); |
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void ImportEvents(uint Samples); |
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void AddGroup(uint group); |
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void HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent); |
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void ClearGroupEventLists(); |
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void DeleteGroupEventLists(); |
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}; |
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} // namespace LinuxSampler |
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#endif /* __LS_ABSTRACTENGINECHANNEL_H__ */ |
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