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

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revision 2298 by iliev, Fri Dec 9 17:04:24 2011 UTC revision 2931 by schoenebeck, Sat Jul 9 14:38:33 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) 2009-2010 Christian Schoenebeck and Grigor Iliev        *   *   Copyright (C) 2009-2013 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 31  Line 31 
31  #include "../common/ConditionServer.h"  #include "../common/ConditionServer.h"
32  #include "../common/Pool.h"  #include "../common/Pool.h"
33  #include "../common/RingBuffer.h"  #include "../common/RingBuffer.h"
34    #include "../common/ChangeFlagRelaxed.h"
35    #include "../common/ResourceManager.h"
36  #include "../drivers/audio/AudioOutputDevice.h"  #include "../drivers/audio/AudioOutputDevice.h"
37  #include "common/Event.h"  #include "common/Event.h"
38    #include "common/Note.h"
39  #include "common/SignalUnitRack.h"  #include "common/SignalUnitRack.h"
40    #include "common/InstrumentScriptVM.h"
41    
42  namespace LinuxSampler {  namespace LinuxSampler {
43    
# Line 51  namespace LinuxSampler { Line 55  namespace LinuxSampler {
55              virtual ~AbstractEngine();              virtual ~AbstractEngine();
56    
57              // implementation of abstract methods derived from class 'LinuxSampler::Engine'              // implementation of abstract methods derived from class 'LinuxSampler::Engine'
58              virtual void   SendSysex(void* pData, uint Size, MidiInputPort* pSender);              virtual void   SendSysex(void* pData, uint Size, MidiInputPort* pSender) OVERRIDE;
59              virtual void   Reset();              virtual void   Reset() OVERRIDE;
60              virtual void   Enable();              virtual void   Enable() OVERRIDE;
61              virtual void   Disable();              virtual void   Disable() OVERRIDE;
62              virtual uint   VoiceCount();              virtual uint   VoiceCount() OVERRIDE;
63              virtual uint   VoiceCountMax();              virtual uint   VoiceCountMax() OVERRIDE;
64              virtual String EngineName();              virtual String EngineName() OVERRIDE;
65                virtual void   AdjustScaleTuning(const int8_t ScaleTunes[12]) OVERRIDE;
66                virtual void   GetScaleTuning(int8_t* pScaleTunes) OVERRIDE;
67                virtual void   ResetScaleTuning() OVERRIDE;
68    
69              virtual Format GetEngineFormat() = 0;              virtual Format GetEngineFormat() = 0;
70              virtual void   Connect(AudioOutputDevice* pAudioOut) = 0;              virtual void   Connect(AudioOutputDevice* pAudioOut) = 0;
71              virtual void   DisableAndLock();              virtual void   DisableAndLock();
72    
73              void SetVoiceCount(uint Count);// Simple array wrapper just to make sure memory is freed              void SetVoiceCount(uint Count);
74              // when liblinuxsampler is unloaded  
75                /**
76                 * Returns event with the given event ID.
77                 */
78                RTList<Event>::Iterator EventByID(event_id_t id) {
79                    return pEventPool->fromID(id);
80                }
81    
82                virtual NoteBase* NoteByID(note_id_t id) = 0;
83    
84              float Random() {              float Random() {
85                  RandomSeed = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator                  RandomSeed = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator
86                  return RandomSeed / 4294967296.0f;                  return RandomSeed / 4294967296.0f;
87              }              }
88                
89                // Simple array wrapper just to make sure memory is freed
90                // when liblinuxsampler is unloaded
91              class FloatTable {              class FloatTable {
92              private:              private:
93                  const float* array;                  const float* array;
# Line 84  namespace LinuxSampler { Line 101  namespace LinuxSampler {
101              static const FloatTable PanCurve;       ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center).              static const FloatTable PanCurve;       ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center).
102              static const FloatTable CrossfadeCurve; ///< Table that maps crossfade control change values 0..127 to amplitude. Unity gain is at 127.              static const FloatTable CrossfadeCurve; ///< Table that maps crossfade control change values 0..127 to amplitude. Unity gain is at 127.
103    
104                static float PanCurveValueNorm(float pan, int channel);
105    
106              AudioOutputDevice* pAudioOutputDevice;              AudioOutputDevice* pAudioOutputDevice;
107                            
108              //TODO: should be protected              //TODO: should be protected
# Line 95  namespace LinuxSampler { Line 114  namespace LinuxSampler {
114              template<class V, class R, class I> friend class EngineChannelBase;              template<class V, class R, class I> friend class EngineChannelBase;
115              template<class EC, class R, class S, class D> friend class VoiceBase;              template<class EC, class R, class S, class D> friend class VoiceBase;
116    
117          protected:          //protected:
118              ArrayList<EngineChannel*>  engineChannels; ///< All engine channels of a Engine instance.              ArrayList<EngineChannel*>  engineChannels; ///< All engine channels of a Engine instance.
119              ConditionServer            EngineDisabled;              ConditionServer            EngineDisabled;
120              int8_t                     ScaleTuning[12];    ///< contains optional detune factors (-64..+63 cents) for all 12 semitones of an octave              int8_t                     ScaleTuning[12];    ///< contains optional detune factors (-64..+63 cents) for all 12 semitones of an octave
121                ChangeFlagRelaxed          ScaleTuningChanged; ///< Boolean flag indicating whenever ScaleTuning has been modified by a foreign thread (i.e. by API).
122              RingBuffer<Event,false>*   pEventQueue;        ///< Input event queue for engine global events (e.g. SysEx messages).              RingBuffer<Event,false>*   pEventQueue;        ///< Input event queue for engine global events (e.g. SysEx messages).
123              EventGenerator*            pEventGenerator;              EventGenerator*            pEventGenerator;
124              RTList<Event>*             pGlobalEvents;         ///< All engine global events for the current audio fragment (usually only SysEx messages).              RTList<Event>*             pGlobalEvents;         ///< All engine global events for the current audio fragment (usually only SysEx messages).
# Line 110  namespace LinuxSampler { Line 130  namespace LinuxSampler {
130              int                        ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                        ActiveVoiceCountMax;   ///< the maximum voice usage since application start
131              atomic_t                   ActiveVoiceCount;      ///< number of currently active voices              atomic_t                   ActiveVoiceCount;      ///< number of currently active voices
132              int                        VoiceSpawnsLeft;       ///< We only allow CONFIG_MAX_VOICES voices to be spawned per audio fragment, we use this variable to ensure this limit.              int                        VoiceSpawnsLeft;       ///< We only allow CONFIG_MAX_VOICES voices to be spawned per audio fragment, we use this variable to ensure this limit.
133                InstrumentScriptVM*        pScriptVM; ///< Real-time instrument script virtual machine runner for this engine.
134    
135              void RouteAudio(EngineChannel* pEngineChannel, uint Samples);              void RouteAudio(EngineChannel* pEngineChannel, uint Samples);
136              void RouteDedicatedVoiceChannels(EngineChannel* pEngineChannel, optional<float> FxSendLevels[2], uint Samples);              void RouteDedicatedVoiceChannels(EngineChannel* pEngineChannel, optional<float> FxSendLevels[2], uint Samples);
137              void ClearEventLists();              void ClearEventLists();
138              void ImportEvents(uint Samples);              void ImportEvents(uint Samples);
139              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);
             void ResetScaleTuning();  
140              void ProcessPitchbend(AbstractEngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);              void ProcessPitchbend(AbstractEngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);
141    
142              void ProcessFxSendControllers (              void ProcessFxSendControllers (
# Line 131  namespace LinuxSampler { Line 151  namespace LinuxSampler {
151              virtual void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) = 0;              virtual void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) = 0;
152              virtual void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) = 0;              virtual void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) = 0;
153              virtual void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) = 0;              virtual void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) = 0;
154                virtual void ProcessChannelPressure(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itChannelPressureEvent) = 0;
155                virtual void ProcessPolyphonicKeyPressure(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNotePressureEvent) = 0;
156                virtual void ProcessReleaseTrigger(EngineChannel* pEngineChannel, RTList<Event>::Iterator& itEvent) = 0;
157              virtual int  GetMinFadeOutSamples() = 0;              virtual int  GetMinFadeOutSamples() = 0;
158                virtual note_id_t LaunchNewNote(LinuxSampler::EngineChannel* pEngineChannel, Event* pNoteOnEvent) = 0;
159                virtual void CreateInstrumentScriptVM();
160    
161          private:          private:
162              static std::map<Format, std::map<AudioOutputDevice*,AbstractEngine*> > engines;              static std::map<Format, std::map<AudioOutputDevice*,AbstractEngine*> > engines;
# Line 142  namespace LinuxSampler { Line 167  namespace LinuxSampler {
167              static float* InitCrossfadeCurve();              static float* InitCrossfadeCurve();
168              static float* InitCurve(const float* segments, int size = 128);              static float* InitCurve(const float* segments, int size = 128);
169    
             void AdjustScale(int8_t ScaleTunes[12]);  
170              bool RouteFxSend(FxSend* pFxSend, AudioChannel* ppSource[2], float FxSendLevel, uint Samples);              bool RouteFxSend(FxSend* pFxSend, AudioChannel* ppSource[2], float FxSendLevel, uint Samples);
171      };      };
172    
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