/[svn]/linuxsampler/trunk/src/engines/gig/EngineChannel.h
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Diff of /linuxsampler/trunk/src/engines/gig/EngineChannel.h

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revision 411 by schoenebeck, Sat Feb 26 02:01:14 2005 UTC revision 865 by persson, Sun May 14 07:15:52 2006 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, 2006 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 30  Line 30 
30    
31  #include "../common/Event.h"  #include "../common/Event.h"
32  #include "../common/EngineChannel.h"  #include "../common/EngineChannel.h"
33    #include "../../common/RingBuffer.h"
34  #include "EngineGlobals.h"  #include "EngineGlobals.h"
35  #include "Engine.h"  #include "Engine.h"
36    #include "Voice.h"
37  #include "InstrumentResourceManager.h"  #include "InstrumentResourceManager.h"
38    
39  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
40    
41        // just symbol prototyping
42      class midi_key_info_t;      class midi_key_info_t;
43        class Voice;
44    
45        /** @brief Engine Channel of a gig::Engine
46         *
47         * Encapsulates a engine channel for the Gigasampler format capable
48         * sampler engine.
49         */
50      class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer {      class EngineChannel : public LinuxSampler::EngineChannel, public InstrumentConsumer {
51          public:          public:
52              EngineChannel();              EngineChannel();
53              virtual ~EngineChannel();                          virtual ~EngineChannel();
54              
55              // 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);  
56              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument);              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument);
57              virtual void    LoadInstrument();              virtual void    LoadInstrument();
58                virtual void    Reset();
59              virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity);              virtual void    SendNoteOn(uint8_t Key, uint8_t Velocity);
60              virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity);              virtual void    SendNoteOff(uint8_t Key, uint8_t Velocity);
61              virtual void    SendPitchbend(int Pitch);              virtual void    SendPitchbend(int Pitch);
62              virtual void    SendControlChange(uint8_t Controller, uint8_t Value);                          virtual void    SendControlChange(uint8_t Controller, uint8_t Value);
63                virtual bool    StatusChanged(bool bNewStatus = false);
64              virtual float   Volume();              virtual float   Volume();
65              virtual void    Volume(float f);              virtual void    Volume(float f);
66              virtual uint    Channels();              virtual uint    Channels();
# Line 58  namespace LinuxSampler { namespace gig { Line 68  namespace LinuxSampler { namespace gig {
68              virtual void    DisconnectAudioOutputDevice();              virtual void    DisconnectAudioOutputDevice();
69              virtual void    SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);              virtual void    SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);
70              virtual int     OutputChannel(uint EngineAudioChannel);              virtual int     OutputChannel(uint EngineAudioChannel);
71                virtual void    Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel);
72                virtual void    DisconnectMidiInputPort();
73                virtual MidiInputPort* GetMidiInputPort();
74                virtual midi_chan_t MidiChannel();
75              virtual String  InstrumentFileName();              virtual String  InstrumentFileName();
76              virtual String  InstrumentName();              virtual String  InstrumentName();
77              virtual int     InstrumentIndex();              virtual int     InstrumentIndex();
78              virtual int     InstrumentStatus();              virtual int     InstrumentStatus();
79              virtual LinuxSampler::Engine* GetEngine();                          virtual LinuxSampler::Engine* GetEngine();
80                virtual String  EngineName();
81    
82              // implementation of abstract methods derived from interface class 'InstrumentConsumer'              // implementation of abstract methods derived from interface class 'InstrumentConsumer'
83              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);
84              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);
85                            virtual void OnResourceProgress(float fProgress);
86          //protected:                        
87            //protected:
88              Engine*                 pEngine;              Engine*                 pEngine;
89              float*                  pOutputLeft;              ///< Audio output channel buffer (left)              float*                  pOutputLeft;              ///< Audio output channel buffer (left)
90              float*                  pOutputRight;             ///< Audio output channel buffer (right)              float*                  pOutputRight;             ///< Audio output channel buffer (right)
91              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
92              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
93                MidiInputPort*          pMidiInputPort;           ///< Points to the connected MIDI input port or NULL if none assigned.
94                midi_chan_t             midiChannel;              ///< MIDI channel(s) on which this engine channel listens to.
95              RingBuffer<Event>*      pEventQueue;              ///< Input event queue.              RingBuffer<Event>*      pEventQueue;              ///< Input event queue.
96              uint8_t                 ControllerTable[128];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel.                          RTList<Event>*          pEvents;                  ///< All engine channel specific events for the current audio fragment.
97                uint8_t                 ControllerTable[128];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel.
98              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
99              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.
100              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.
101              ::gig::Instrument*      pInstrument;              ::gig::Instrument*      pInstrument;
102              bool                    SustainPedal;             ///< true if sustain pedal is down              bool                    SustainPedal;             ///< true if sustain pedal is down
103                bool                    SostenutoPedal;           ///< true if sostenuto pedal is down
104                bool                    SoloMode;                 ///< in Solo Mode we only play one voice (group) at a time
105                int                     SoloKey;                  ///< Currently 'active' solo key, that is the key to which the currently sounding voice belongs to (only if SoloMode is enabled)
106                bool                    PortamentoMode;           ///< in Portamento Mode we slide the pitch from the last note to the current note.
107                float                   PortamentoTime;           ///< How long it will take to glide from the previous note to the current (in seconds)
108                float                   PortamentoPos;            ///< Current position on the keyboard, that is integer and fractional part (only used if PortamentoMode is on)
109              double                  GlobalVolume;             ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)              double                  GlobalVolume;             ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)
110                float                   GlobalPanLeft;
111                float                   GlobalPanRight;
112              int                     Pitch;                    ///< Current (absolute) MIDI pitch value.              int                     Pitch;                    ///< Current (absolute) MIDI pitch value.
113              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.
114              String                  InstrumentFile;              String                  InstrumentFile;
115              int                     InstrumentIdx;              int                     InstrumentIdx;
116              String                  InstrumentIdxName;              String                  InstrumentIdxName;
117              int                     InstrumentStat;                          int                     InstrumentStat;
118                int                     iEngineIndexSelf;         ///< Reflects the index of this EngineChannel in the Engine's ArrayList.
119                bool                    bStatusChanged;           ///< true in case an engine parameter has changed (e.g. new instrument, another volumet)
120    
121                void ResetControllers();
122                void ClearEventLists();
123                void ImportEvents(uint Samples);
124    
125              friend class Engine;              friend class Engine;
126              friend class Voice;              friend class Voice;
127              friend class InstrumentResourceManager;              friend class InstrumentResourceManager;
128                
129          private:          private:
130              void ResetInternal();              void ResetInternal();
131      };      };
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