/[svn]/linuxsampler/trunk/src/engines/gig/EngineChannel.h
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revision 424 by schoenebeck, Fri Mar 4 22:54:11 2005 UTC revision 2902 by schoenebeck, Tue May 3 14:00:16 2016 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 Christian Schoenebeck                              *   *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 - 2012 Christian Schoenebeck and Grigor Iliev      *
8     *   Copyright (C) 2012 - 2016 Christian Schoenebeck and Andreas Persson   *
9   *                                                                         *   *                                                                         *
10   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
11   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 22  Line 24 
24   ***************************************************************************/   ***************************************************************************/
25    
26  #ifndef __LS_GIG_ENGINECHANNEL_H__  #ifndef __LS_GIG_ENGINECHANNEL_H__
27  #define __LS_GIG_ENGINECHANNEL_H__  #define __LS_GIG_ENGINECHANNEL_H__
28    
29  #if DEBUG_HEADERS  #include "../AbstractEngine.h"
30  # warning EngineChannel.h included  #include "../EngineChannelBase.h"
31  #endif // DEBUG_HEADERS  #include "../EngineChannelFactory.h"
   
 #include "../common/Event.h"  
 #include "../common/EngineChannel.h"  
 #include "EngineGlobals.h"  
 #include "Engine.h"  
32  #include "Voice.h"  #include "Voice.h"
33  #include "InstrumentResourceManager.h"  #include <gig.h>
34    
35  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
   
     // just symbol prototyping  
     class midi_key_info_t;  
36      class Voice;      class Voice;
37    
38      class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer {      class EngineChannel: public LinuxSampler::EngineChannelBase<Voice, ::gig::DimensionRegion, ::gig::Instrument> {
39          public:          public:
40              EngineChannel();              virtual void SendProgramChange(uint8_t Program);
41              virtual ~EngineChannel();                          virtual void LoadInstrument();
42                          virtual void ResetInternal(bool bResetEngine) OVERRIDE;
43              // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'              virtual String InstrumentFileName();
44              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument);              virtual String InstrumentFileName(int index);
45              virtual void    LoadInstrument();  
46              virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity);              virtual AbstractEngine::Format GetEngineFormat();
47              virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity);  
48              virtual void    SendPitchbend(int Pitch);              void reloadScript(::gig::Script* script);
             virtual void    SendControlChange(uint8_t Controller, uint8_t Value);              
             virtual float   Volume();  
             virtual void    Volume(float f);  
             virtual uint    Channels();  
             virtual void    Connect(AudioOutputDevice* pAudioOut);  
             virtual void    DisconnectAudioOutputDevice();  
             virtual void    SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);  
             virtual int     OutputChannel(uint EngineAudioChannel);  
             virtual String  InstrumentFileName();  
             virtual String  InstrumentName();  
             virtual int     InstrumentIndex();  
             virtual int     InstrumentStatus();  
             virtual LinuxSampler::Engine* GetEngine();              
   
             // implementation of abstract methods derived from interface class 'InstrumentConsumer'  
             virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);  
             virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);  
               
         //protected:                        
             Engine*                 pEngine;  
             float*                  pOutputLeft;              ///< Audio output channel buffer (left)  
             float*                  pOutputRight;             ///< Audio output channel buffer (right)  
             int                     AudioDeviceChannelLeft;   ///< audio device channel number to which the left channel is connected to  
             int                     AudioDeviceChannelRight;  ///< audio device channel number to which the right channel is connected to  
             RingBuffer<Event>*      pEventQueue;              ///< Input event queue.  
             uint8_t                 ControllerTable[128];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel.              
             midi_key_info_t*        pMIDIKeyInfo;             ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key  
             Pool<uint>*             pActiveKeys;              ///< Holds all keys in it's allocation list with active voices.              
             std::map<uint,uint*>    ActiveKeyGroups;          ///< Contains active keys (in case they belong to a key group) ordered by key group ID.  
             ::gig::Instrument*      pInstrument;  
             bool                    SustainPedal;             ///< true if sustain pedal is down  
             double                  GlobalVolume;             ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)  
             float                   GlobalPanLeft;  
             float                   GlobalPanRight;  
             int                     Pitch;                    ///< Current (absolute) MIDI pitch value.  
             int                     CurrentKeyDimension;      ///< Current value (0-127) for the keyboard dimension, altered by pressing a keyswitching key.  
             String                  InstrumentFile;  
             int                     InstrumentIdx;  
             String                  InstrumentIdxName;  
             int                     InstrumentStat;  
             RTList<Voice>::Iterator itLastStolenVoice;        ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.  
             RTList<uint>::Iterator  iuiLastStolenKey;         ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise.  
49    
             friend class Engine;  
50              friend class Voice;              friend class Voice;
51              friend class InstrumentResourceManager;              friend class Engine;
52                            friend class LinuxSampler::EngineChannelFactory;
53          private:  
54              void ResetInternal();          protected:
55                EngineChannel();
56                virtual ~EngineChannel();
57    
58                float CurrentKeyDimension;      ///< Current value (0-1.0) for the keyboard dimension, altered by pressing a keyswitching key.
59                ::gig::Script* CurrentGigScript; ///< Only used when a script is updated (i.e. by instrument editor), to check whether this engine channel is actually using that specific script reference.
60    
61                virtual void ProcessKeySwitchChange(int key);
62    
63      };      };
64    
65  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
66    
67  #endif // __LS_GIG_ENGINECHANNEL_H__  #endif  /* __LS_GIG_ENGINECHANNEL_H__ */
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