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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 Christian Schoenebeck * |
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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_GIG_ENGINECHANNEL_H__ |
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#define __LS_GIG_ENGINECHANNEL_H__ |
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#if DEBUG_HEADERS |
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# warning EngineChannel.h included |
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#endif // DEBUG_HEADERS |
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#include "../common/Event.h" |
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#include "../common/EngineChannel.h" |
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#include "EngineGlobals.h" |
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#include "Engine.h" |
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#include "InstrumentResourceManager.h" |
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namespace LinuxSampler { namespace gig { |
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class midi_key_info_t; |
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class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer { |
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public: |
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EngineChannel(); |
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virtual ~EngineChannel(); |
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// implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel' |
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virtual int RenderAudio(uint Samples); |
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virtual void PrepareLoadInstrument(const char* FileName, uint Instrument); |
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virtual void LoadInstrument(); |
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virtual void SendNoteOn(uint8_t Key, uint8_t Velocity); |
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virtual void SendNoteOff(uint8_t Key, uint8_t Velocity); |
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virtual void SendPitchbend(int Pitch); |
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virtual void SendControlChange(uint8_t Controller, uint8_t Value); |
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virtual float Volume(); |
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virtual void Volume(float f); |
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virtual uint Channels(); |
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virtual void Connect(AudioOutputDevice* pAudioOut); |
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virtual void DisconnectAudioOutputDevice(); |
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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 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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// implementation of abstract methods derived from interface class 'InstrumentConsumer' |
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virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg); |
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virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg); |
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//protected: |
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Engine* pEngine; |
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float* pOutputLeft; ///< Audio output channel buffer (left) |
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float* pOutputRight; ///< Audio output channel buffer (right) |
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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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RingBuffer<Event>* pEventQueue; ///< Input event queue. |
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uint8_t ControllerTable[128]; ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel. |
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midi_key_info_t* pMIDIKeyInfo; ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key |
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Pool<uint>* pActiveKeys; ///< Holds all keys in it's allocation list with active voices. |
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std::map<uint,uint*> ActiveKeyGroups; ///< Contains active keys (in case they belong to a key group) ordered by key group ID. |
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::gig::Instrument* pInstrument; |
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bool SustainPedal; ///< true if sustain pedal is down |
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double GlobalVolume; ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification) |
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int Pitch; ///< Current (absolute) MIDI pitch value. |
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int CurrentKeyDimension; ///< Current value (0-127) for the keyboard dimension, altered by pressing a keyswitching key. |
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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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friend class Engine; |
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friend class Voice; |
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friend class InstrumentResourceManager; |
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private: |
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void ResetInternal(); |
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}; |
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}} // namespace LinuxSampler::gig |
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#endif // __LS_GIG_ENGINECHANNEL_H__ |
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