/[svn]/linuxsampler/trunk/src/engines/gig/EngineChannel.h
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revision 411 by schoenebeck, Sat Feb 26 02:01:14 2005 UTC revision 1041 by schoenebeck, Wed Feb 7 17:45:19 2007 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 - 2007 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   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 24  Line 24 
24  #ifndef __LS_GIG_ENGINECHANNEL_H__  #ifndef __LS_GIG_ENGINECHANNEL_H__
25  #define __LS_GIG_ENGINECHANNEL_H__  #define __LS_GIG_ENGINECHANNEL_H__
26    
 #if DEBUG_HEADERS  
 # warning EngineChannel.h included  
 #endif // DEBUG_HEADERS  
   
27  #include "../common/Event.h"  #include "../common/Event.h"
28  #include "../common/EngineChannel.h"  #include "../EngineChannel.h"
29    #include "../../common/RingBuffer.h"
30    #include "../../drivers/audio/AudioChannel.h"
31  #include "EngineGlobals.h"  #include "EngineGlobals.h"
32  #include "Engine.h"  #include "Engine.h"
33    #include "Voice.h"
34  #include "InstrumentResourceManager.h"  #include "InstrumentResourceManager.h"
35    
36  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
37    
38        // just symbol prototyping
39      class midi_key_info_t;      class midi_key_info_t;
40        class Voice;
41    
42        /** @brief Engine Channel of a gig::Engine
43         *
44         * Encapsulates a engine channel for the Gigasampler format capable
45         * sampler engine.
46         */
47      class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer {      class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer {
48          public:          public:
49              EngineChannel();              EngineChannel();
50              virtual ~EngineChannel();                          virtual ~EngineChannel();
51              
52              // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'              // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'
             virtual int     RenderAudio(uint Samples);  
53              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument);              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument);
54              virtual void    LoadInstrument();              virtual void    LoadInstrument();
55                virtual void    Reset();
56              virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity);              virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity);
57                virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity, int32_t FragmentPos);
58              virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity);              virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity);
59                virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity, int32_t FragmentPos);
60              virtual void    SendPitchbend(int Pitch);              virtual void    SendPitchbend(int Pitch);
61              virtual void    SendControlChange(uint8_t Controller, uint8_t Value);                          virtual void    SendPitchbend(int Pitch, int32_t FragmentPos);
62                virtual void    SendControlChange(uint8_t Controller, uint8_t Value);
63                virtual void    SendControlChange(uint8_t Controller, uint8_t Value, int32_t FragmentPos);
64                virtual bool    StatusChanged(bool bNewStatus = false);
65              virtual float   Volume();              virtual float   Volume();
66              virtual void    Volume(float f);              virtual void    Volume(float f);
67              virtual uint    Channels();              virtual uint    Channels();
68              virtual void    Connect(AudioOutputDevice* pAudioOut);              virtual void    Connect(AudioOutputDevice* pAudioOut);
69              virtual void    DisconnectAudioOutputDevice();              virtual void    DisconnectAudioOutputDevice();
70                virtual AudioOutputDevice* GetAudioOutputDevice();
71              virtual void    SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);              virtual void    SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);
72              virtual int     OutputChannel(uint EngineAudioChannel);              virtual int     OutputChannel(uint EngineAudioChannel);
73                virtual void    Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel);
74                virtual void    DisconnectMidiInputPort();
75                virtual MidiInputPort* GetMidiInputPort();
76                virtual midi_chan_t MidiChannel();
77              virtual String  InstrumentFileName();              virtual String  InstrumentFileName();
78              virtual String  InstrumentName();              virtual String  InstrumentName();
79              virtual int     InstrumentIndex();              virtual int     InstrumentIndex();
80              virtual int     InstrumentStatus();              virtual int     InstrumentStatus();
81              virtual LinuxSampler::Engine* GetEngine();                          virtual LinuxSampler::Engine* GetEngine();
82                virtual String  EngineName();
83                virtual FxSend* AddFxSend(uint8_t MidiCtrl, String Name = "") throw (Exception);
84                virtual FxSend* GetFxSend(uint FxSendIndex);
85                virtual uint    GetFxSendCount();
86                virtual void    RemoveFxSend(FxSend* pFxSend);
87    
88              // implementation of abstract methods derived from interface class 'InstrumentConsumer'              // implementation of abstract methods derived from interface class 'InstrumentConsumer'
89              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);
90              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);
91                            virtual void OnResourceProgress(float fProgress);
92          //protected:                        
93            //protected:
94              Engine*                 pEngine;              Engine*                 pEngine;
95              float*                  pOutputLeft;              ///< Audio output channel buffer (left)              AudioChannel*           pChannelLeft;             ///< encapsulates the audio rendering buffer (left)
96              float*                  pOutputRight;             ///< Audio output channel buffer (right)              AudioChannel*           pChannelRight;            ///< encapsulates the audio rendering buffer (right)
97              int                     AudioDeviceChannelLeft;   ///< audio device channel number to which the left channel is connected to              int                     AudioDeviceChannelLeft;   ///< audio device channel number to which the left channel is connected to
98              int                     AudioDeviceChannelRight;  ///< audio device channel number to which the right channel is connected to              int                     AudioDeviceChannelRight;  ///< audio device channel number to which the right channel is connected to
99              RingBuffer<Event>*      pEventQueue;              ///< Input event queue.              MidiInputPort*          pMidiInputPort;           ///< Points to the connected MIDI input port or NULL if none assigned.
100              uint8_t                 ControllerTable[128];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel.                          midi_chan_t             midiChannel;              ///< MIDI channel(s) on which this engine channel listens to.
101                RingBuffer<Event,false>* pEventQueue;             ///< Input event queue.
102                RTList<Event>*          pEvents;                  ///< All engine channel specific events for the current audio fragment.
103                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).
104              midi_key_info_t*        pMIDIKeyInfo;             ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key              midi_key_info_t*        pMIDIKeyInfo;             ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key
105              Pool<uint>*             pActiveKeys;              ///< Holds all keys in it's allocation list with active voices.                          Pool<uint>*             pActiveKeys;              ///< Holds all keys in it's allocation list with active voices.
106              std::map<uint,uint*>    ActiveKeyGroups;          ///< Contains active keys (in case they belong to a key group) ordered by key group ID.              std::map<uint,uint*>    ActiveKeyGroups;          ///< Contains active keys (in case they belong to a key group) ordered by key group ID.
107              ::gig::Instrument*      pInstrument;              ::gig::Instrument*      pInstrument;
108              bool                    SustainPedal;             ///< true if sustain pedal is down              bool                    SustainPedal;             ///< true if sustain pedal is down
109              double                  GlobalVolume;             ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)              bool                    SostenutoPedal;           ///< true if sostenuto pedal is down
110                bool                    SoloMode;                 ///< in Solo Mode we only play one voice (group) at a time
111                int                     SoloKey;                  ///< Currently 'active' solo key, that is the key to which the currently sounding voice belongs to (only if SoloMode is enabled)
112                bool                    PortamentoMode;           ///< in Portamento Mode we slide the pitch from the last note to the current note.
113                float                   PortamentoTime;           ///< How long it will take to glide from the previous note to the current (in seconds)
114                float                   PortamentoPos;            ///< Current position on the keyboard, that is integer and fractional part (only used if PortamentoMode is on)
115                double                  GlobalVolume;             ///< Master volume factor set through the C++ API / LSCP (a value < 1.0 means attenuation, a value > 1.0 means amplification)
116                double                  MidiVolume;               ///< Volume factor altered by MIDI CC#7 (a value < 1.0 means attenuation, a value > 1.0 means amplification)
117                float                   GlobalPanLeft;
118                float                   GlobalPanRight;
119              int                     Pitch;                    ///< Current (absolute) MIDI pitch value.              int                     Pitch;                    ///< Current (absolute) MIDI pitch value.
120              int                     CurrentKeyDimension;      ///< Current value (0-127) for the keyboard dimension, altered by pressing a keyswitching key.              float                   CurrentKeyDimension;      ///< Current value (0-1.0) for the keyboard dimension, altered by pressing a keyswitching key.
121              String                  InstrumentFile;              String                  InstrumentFile;
122              int                     InstrumentIdx;              int                     InstrumentIdx;
123              String                  InstrumentIdxName;              String                  InstrumentIdxName;
124              int                     InstrumentStat;                          int                     InstrumentStat;
125                int                     iEngineIndexSelf;         ///< Reflects the index of this EngineChannel in the Engine's ArrayList.
126                bool                    bStatusChanged;           ///< true in case an engine parameter has changed (e.g. new instrument, another volumet)
127                std::vector<FxSend*>    fxSends;
128                int                     GlobalTranspose;          ///< amount of semi tones all notes should be transposed
129    
130                void ResetControllers();
131                void ClearEventLists();
132                void ImportEvents(uint Samples);
133    
134              friend class Engine;              friend class Engine;
135              friend class Voice;              friend class Voice;
136              friend class InstrumentResourceManager;              friend class InstrumentResourceManager;
137                
138          private:          private:
139              void ResetInternal();              void ResetInternal();
140                void RemoveAllFxSends();
141      };      };
142    
143  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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