/[svn]/linuxsampler/trunk/src/engines/common/AbstractVoice.h
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revision 2216 by iliev, Mon Jul 25 17:21:16 2011 UTC revision 2935 by schoenebeck, Sun Jul 10 14:24:13 2016 UTC
# Line 4  Line 4 
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) 2005-2008 Christian Schoenebeck                         *   *   Copyright (C) 2005-2008 Christian Schoenebeck                         *
7   *   Copyright (C) 2009-2011 Christian Schoenebeck and Grigor Iliev        *   *   Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev        *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   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 82  namespace LinuxSampler { Line 82  namespace LinuxSampler {
82      class AbstractVoice : public Voice {      class AbstractVoice : public Voice {
83          public:          public:
84              type_t       Type;         ///< Voice Type (bit field, a voice may have several types)              type_t       Type;         ///< Voice Type (bit field, a voice may have several types)
85              int          MIDIKey;      ///< MIDI key number of the key that triggered the voice              NoteBase*    pNote;        ///< Note this voice belongs to and was caused by.
86                int          MIDIPan;      ///< the current MIDI pan value plus the value from RegionInfo
87    
88              AbstractVoice();              SignalUnitRack* const pSignalUnitRack;
89    
90                AbstractVoice(SignalUnitRack* pRack);
91              virtual ~AbstractVoice();              virtual ~AbstractVoice();
92    
93              inline bool IsActive() { return PlaybackState; }              inline bool IsActive() { return PlaybackState; }
# Line 100  namespace LinuxSampler { Line 103  namespace LinuxSampler {
103                  int                     iKeyGroup                  int                     iKeyGroup
104              );              );
105    
106                /** Invoked when the voice is freed - gone from active to inactive. */
107                virtual void VoiceFreed() { }
108    
109              virtual void Synthesize(uint Samples, sample_t* pSrc, uint Skip);              virtual void Synthesize(uint Samples, sample_t* pSrc, uint Skip);
110                            
111              uint GetSampleRate() { return GetEngine()->SampleRate; }              uint GetSampleRate() { return GetEngine()->SampleRate; }
112                            
113              virtual SignalUnitRack* GetSignalUnitRack() { return NULL; }              uint8_t GetControllerValue(uint8_t Controller) {
114                    return (Controller > 128) ? 0 : pEngineChannel->ControllerTable[Controller];
115                }
116    
117                /// Keyboard key on which this voice should listen to transitional events (i.e. note-off events to release the voice).
118                inline uint8_t HostKey() const { return pNote->hostKey; }
119                /// Keyboard key which the voice should use for calculating any synthesis relevant parameters (i.e. pitch).
120                inline uint8_t MIDIKey() const { return pNote->cause.Param.Note.Key; }
121                /// MIDI note-on velocity value which the voice should use for calculating any synthesis relevant parameters (i.e. amplitude).
122                inline uint8_t MIDIVelocity() const { return pNote->cause.Param.Note.Velocity; }
123    
124              void processCCEvents(RTList<Event>::Iterator& itEvent, uint End);              void processCCEvents(RTList<Event>::Iterator& itEvent, uint End);
125              void processPitchEvent(RTList<Event>::Iterator& itEvent);              void processPitchEvent(RTList<Event>::Iterator& itEvent);
# Line 113  namespace LinuxSampler { Line 128  namespace LinuxSampler {
128              void processGroupEvents(RTList<Event>::Iterator& itEvent, uint End);              void processGroupEvents(RTList<Event>::Iterator& itEvent, uint End);
129              void UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent);              void UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent);
130              void Kill(Pool<Event>::Iterator& itKillEvent);              void Kill(Pool<Event>::Iterator& itKillEvent);
131                void CreateEq();
132                void onScaleTuningChanged();
133    
134              bool                Orphan;             ///< true if this voice is playing a sample from an instrument that is unloaded. When the voice dies, the sample (and dimension region) will be handed back to the instrument resource manager.              bool                Orphan;             ///< true if this voice is playing a sample from an instrument that is unloaded. When the voice dies, the sample (and dimension region) will be handed back to the instrument resource manager.
135              playback_state_t    PlaybackState;      ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly              playback_state_t    PlaybackState;      ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly
# Line 128  namespace LinuxSampler { Line 145  namespace LinuxSampler {
145    
146              double                      Pos;                ///< Current playback position in sample              double                      Pos;                ///< Current playback position in sample
147              PitchInfo                   Pitch;              PitchInfo                   Pitch;
148                float                       NotePitch;          ///< Updated by calls to built-in instrument script function change_tune() (defaults to 1.0, that is neutral).
149              float                       CutoffBase;         ///< Cutoff frequency before control change, EG and LFO are applied              float                       CutoffBase;         ///< Cutoff frequency before control change, EG and LFO are applied
150              float                       VolumeLeft;         ///< Left channel volume. This factor is calculated when the voice is triggered and doesn't change after that.              float                       VolumeLeft;         ///< Left channel volume. This factor is calculated when the voice is triggered and doesn't change after that.
151              float                       VolumeRight;        ///< Right channel volume. This factor is calculated when the voice is triggered and doesn't change after that.              float                       VolumeRight;        ///< Right channel volume. This factor is calculated when the voice is triggered and doesn't change after that.
152                float                       NotePanLeft;        ///< Updated by calls to built-in instrument script function change_pan() (defaults to 1.0, that is neutral).
153                float                       NotePanRight;       ///< Updated by calls to built-in instrument script function change_pan() (defaults to 1.0, that is neutral).
154                float                       NoteCutoff;         ///< Updated by calls to built-in instrument script function change_cutoff() (defaults to 1.0, that is neutral).
155                float                       NoteResonance;      ///< Updated by calls to built-in instrument script function change_reso() (defaults to 1.0, that is neutral).
156              gig::SmoothVolume           CrossfadeSmoother;  ///< Crossfade volume, updated by crossfade CC events              gig::SmoothVolume           CrossfadeSmoother;  ///< Crossfade volume, updated by crossfade CC events
157              gig::SmoothVolume           VolumeSmoother;     ///< Volume, updated by CC 7 (volume) events              gig::SmoothVolume           VolumeSmoother;     ///< Volume, updated by CC 7 (volume) events
158              gig::SmoothVolume           PanLeftSmoother;    ///< Left channel volume, updated by CC 10 (pan) events              gig::SmoothVolume           PanLeftSmoother;    ///< Left channel volume, updated by CC 10 (pan) events and change_pan() real-time instrument script calls.
159              gig::SmoothVolume           PanRightSmoother;   ///< Right channel volume, updated by CC 10 (pan) events              gig::SmoothVolume           PanRightSmoother;   ///< Right channel volume, updated by CC 10 (pan) events and change_pan() real-time instrument script calls.
160                gig::SmoothVolume           NoteVolumeSmoother; ///< Note's global volume, updated by change_vol() real-time instrument script calls.
161              bool                        DiskVoice;          ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false              bool                        DiskVoice;          ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false
162              bool                        RAMLoop;            ///< If this voice has a loop defined which completely fits into the cached RAM part of the sample, in this case we handle the looping within the voice class, else if the loop is located in the disk stream part, we let the disk stream handle the looping              bool                        RAMLoop;            ///< If this voice has a loop defined which completely fits into the cached RAM part of the sample, in this case we handle the looping within the voice class, else if the loop is located in the disk stream part, we let the disk stream handle the looping
163              unsigned long               MaxRAMPos;          ///< The upper allowed limit (not actually the end) in the RAM sample cache, after that point it's not safe to chase the interpolator another time over over the current cache position, instead we switch to disk then.              unsigned long               MaxRAMPos;          ///< The upper allowed limit (not actually the end) in the RAM sample cache, after that point it's not safe to chase the interpolator another time over over the current cache position, instead we switch to disk then.
# Line 158  namespace LinuxSampler { Line 181  namespace LinuxSampler {
181              gig::SynthesisParam         finalSynthesisParameters;              gig::SynthesisParam         finalSynthesisParameters;
182              gig::Loop                   loop;              gig::Loop                   loop;
183              RTList<Event>*              pGroupEvents;        ///< Events directed to an exclusive group              RTList<Event>*              pGroupEvents;        ///< Events directed to an exclusive group
184                
185                EqSupport* pEq;         ///< Used for per voice equalization
186                bool       bEqSupport;
187                
188                void PrintEqInfo() {
189                    if (!bEqSupport || pEq == NULL) {
190                        dmsg(1,("EQ support: no\n"));
191                    } else {
192                        pEq->PrintInfo();
193                    }
194                }
195    
196              virtual AbstractEngine* GetEngine() = 0;              virtual AbstractEngine* GetEngine() = 0;
197              virtual SampleInfo      GetSampleInfo() = 0;              virtual SampleInfo      GetSampleInfo() = 0;
# Line 272  namespace LinuxSampler { Line 306  namespace LinuxSampler {
306    
307              virtual void    GetFirstEventOnKey(uint8_t MIDIKey, RTList<Event>::Iterator& itEvent) = 0;              virtual void    GetFirstEventOnKey(uint8_t MIDIKey, RTList<Event>::Iterator& itEvent) = 0;
308              virtual void    ProcessCCEvent(RTList<Event>::Iterator& itEvent) = 0;              virtual void    ProcessCCEvent(RTList<Event>::Iterator& itEvent) = 0;
309                virtual void    ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) = 0;
310                virtual void    ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) = 0;
311              virtual void    ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) = 0;              virtual void    ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) = 0;
312              virtual double  GetVelocityRelease(uint8_t MIDIKeyVelocity) = 0;              virtual double  GetVelocityRelease(uint8_t MIDIKeyVelocity) = 0;
313    
# Line 279  namespace LinuxSampler { Line 315  namespace LinuxSampler {
315    
316              virtual void    ProcessGroupEvent(RTList<Event>::Iterator& itEvent) = 0;              virtual void    ProcessGroupEvent(RTList<Event>::Iterator& itEvent) = 0;
317              void            EnterReleaseStage();              void            EnterReleaseStage();
318    
319                virtual int     CalculatePan(uint8_t pan) = 0;
320      };      };
321  } // namespace LinuxSampler  } // namespace LinuxSampler
322    
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