/[svn]/linuxsampler/trunk/src/engines/AbstractEngineChannel.h
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revision 2596 by schoenebeck, Thu Jun 5 19:39:12 2014 UTC revision 2879 by schoenebeck, Tue Apr 19 14:07:53 2016 UTC
# Line 5  Line 5 
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) 2009-2012 Christian Schoenebeck and Grigor Iliev        *   *   Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev        *
8   *   Copyright (C) 2013-2014 Christian Schoenebeck and Andreas Persson     *   *   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 31  Line 31 
31    
32  #include "../common/Pool.h"  #include "../common/Pool.h"
33  #include "../common/RingBuffer.h"  #include "../common/RingBuffer.h"
34    #include "../common/ResourceManager.h"
35    #include "common/AbstractInstrumentManager.h"
36    #include "common/InstrumentScriptVM.h"
37    
38  #define CTRL_TABLE_IDX_AFTERTOUCH   128  #define CTRL_TABLE_IDX_AFTERTOUCH   128
39  #define CTRL_TABLE_IDX_PITCHBEND    129  #define CTRL_TABLE_IDX_PITCHBEND    129
40    
41  namespace LinuxSampler {  namespace LinuxSampler {
42    
43      class AbstractEngineChannel: public EngineChannel, public AbstractEngine::ScriptConsumer {      class MidiKeyboardManagerBase;
44    
45        class AbstractEngineChannel: public EngineChannel, public InstrumentScriptConsumer {
46          public:          public:
47              // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'              // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'
48              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument) OVERRIDE;              virtual void    PrepareLoadInstrument(const char* FileName, uint Instrument) OVERRIDE;
# Line 92  namespace LinuxSampler { Line 97  namespace LinuxSampler {
97              virtual void OnResourceProgress(float fProgress) OVERRIDE {}              virtual void OnResourceProgress(float fProgress) OVERRIDE {}
98    
99              virtual AbstractEngine::Format GetEngineFormat() = 0;              virtual AbstractEngine::Format GetEngineFormat() = 0;
100                virtual MidiKeyboardManagerBase* GetMidiKeyboardManager() = 0;
101    
102              AudioOutputDevice* GetAudioOutputDeviceSafe();              AudioOutputDevice* GetAudioOutputDeviceSafe();
             void loadInstrumentScript(const String& text);  
             void unloadCurrentInstrumentScript();  
103    
104              friend class AbstractVoice;              friend class AbstractVoice;
105              friend class AbstractEngine;              friend class AbstractEngine;
# Line 119  namespace LinuxSampler { Line 123  namespace LinuxSampler {
123              midi_chan_t               midiChannel;              ///< MIDI channel(s) on which this engine channel listens to (on all MIDI input ports).              midi_chan_t               midiChannel;              ///< MIDI channel(s) on which this engine channel listens to (on all MIDI input ports).
124              RingBuffer<Event,false>*  pEventQueue;              ///< Input event queue.              RingBuffer<Event,false>*  pEventQueue;              ///< Input event queue.
125              RTList<Event>*            pEvents;                  ///< All engine channel specific events for the current audio fragment.              RTList<Event>*            pEvents;                  ///< All engine channel specific events for the current audio fragment.
126                struct _DelayedEvents {
127                    RTList<Event>*            pList; ///< Unsorted list where all delayed events are moved to and remain here until they're finally processed.
128                    Pool<ScheduledEvent>      schedulerNodes; ///< Nodes used to sort the delayed events (stored on pList) with time sorted queue.
129                    RTAVLTree<ScheduledEvent> queue; ///< Used to access the delayed events (from pList) in time sorted manner.
130    
131                    _DelayedEvents() : pList(NULL), schedulerNodes(CONFIG_MAX_EVENTS_PER_FRAGMENT) {}
132    
133                    inline void clear() {
134                        if (pList) pList->clear();
135                        schedulerNodes.clear();
136                        queue.clear();
137                    }
138                } delayedEvents;
139              uint8_t                   ControllerTable[130];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel. Number 128 is for channel pressure (mono aftertouch), 129 for pitch bend.              uint8_t                   ControllerTable[130];     ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel. Number 128 is for channel pressure (mono aftertouch), 129 for pitch bend.
140              String                    InstrumentFile;              String                    InstrumentFile;
141              int                       InstrumentIdx;              int                       InstrumentIdx;
# Line 137  namespace LinuxSampler { Line 154  namespace LinuxSampler {
154              int                       iEngineIndexSelf;         ///< Reflects the index of this EngineChannel in the Engine's ArrayList.              int                       iEngineIndexSelf;         ///< Reflects the index of this EngineChannel in the Engine's ArrayList.
155              bool                      bStatusChanged;           ///< true in case an engine parameter has changed (e.g. new instrument, another volumet)              bool                      bStatusChanged;           ///< true in case an engine parameter has changed (e.g. new instrument, another volumet)
156              uint32_t                  RoundRobinIndex;          ///< counter for round robin sample selection, incremented for each note on              uint32_t                  RoundRobinIndex;          ///< counter for round robin sample selection, incremented for each note on
157              Pool<ScriptEvent>*        pScriptEvents;            ///< Pool of all available script execution instances. ScriptEvents available to be allocated from the Pool are currently unused / not executiong, whereas the ScriptEvents allocated on the list are currently suspended / have not finished execution yet.              InstrumentScript*         pScript;                  ///< Points to the real-time instrument script(s) to be executed, NULL if current instrument does not have an instrument script. Even though the underlying VM representation of the script is shared among multiple sampler channels, the InstrumentScript object here is not shared though, it exists for each sampler channel separately.
             struct _Script {  
                 VMParserContext*      parserContext; ///< VM represenation of the currently loaded script or NULL if not script was loaded. Note that it is also not NULL if parser errors occurred!  
                 bool                  bHasValidScript; ///< True in case there is a valid script currently loaded, false if script processing shall be skipped.  
                 VMEventHandler*       handlerInit; ///< VM representation of script's initilization callback or NULL if current script did not define such an init handler.  
                 VMEventHandler*       handlerNote; ///< VM representation of script's MIDI note on callback or NULL if current script did not define such an event handler.  
                 VMEventHandler*       handlerRelease; ///< VM representation of script's MIDI note off callback or NULL if current script did not define such an event handler.  
                 VMEventHandler*       handlerController; ///< VM representation of script's MIDI controller callback or NULL if current script did not define such an event handler.  
                 _Script() {  
                     parserContext = NULL;  
                     bHasValidScript = false;  
                     handlerInit = NULL;  
                     handlerNote = NULL;  
                     handlerRelease = NULL;  
                     handlerController = NULL;  
                 }  
             } script;  
158    
159              SynchronizedConfig< ArrayList<VirtualMidiDevice*> > virtualMidiDevices;              SynchronizedConfig< ArrayList<VirtualMidiDevice*> > virtualMidiDevices;
160              SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_AudioThread;              SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_AudioThread;
# Line 178  namespace LinuxSampler { Line 179  namespace LinuxSampler {
179              ActiveKeyGroupMap ActiveKeyGroups;      ///< Contains event queues for key groups, ordered by key group ID.              ActiveKeyGroupMap ActiveKeyGroups;      ///< Contains event queues for key groups, ordered by key group ID.
180    
181              virtual void ResetControllers();              virtual void ResetControllers();
182              virtual void ResetInternal();              virtual void ResetInternal(bool bResetEngine);
183              virtual void RemoveAllFxSends();              virtual void RemoveAllFxSends();
184    
185              void ImportEvents(uint Samples);              void ImportEvents(uint Samples);
186              void ScheduleEvent(const Event* pEvent, int delay); //TODO: delay not implemented yet              virtual note_id_t ScheduleNoteMicroSec(const Event* pEvent, int delay) = 0;
187                event_id_t ScheduleEventMicroSec(const Event* pEvent, int delay);
188                void IgnoreEvent(event_id_t id);
189                void IgnoreNote(note_id_t id);
190                void IgnoreEventByScriptID(const ScriptID& id);
191    
192              void AddGroup(uint group);              void AddGroup(uint group);
193              void HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent);              void HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent);
# Line 202  namespace LinuxSampler { Line 207  namespace LinuxSampler {
207                  //FIXME: leaves tiny time frames open (shortly after 1->2 devices connected or 2->1 disconnected) which could lead to concurrency issue for the purpose described above, however in practice it "should" be acceptable                  //FIXME: leaves tiny time frames open (shortly after 1->2 devices connected or 2->1 disconnected) which could lead to concurrency issue for the purpose described above, however in practice it "should" be acceptable
208                  return midiInputs.unsafeBack().size() > 1;                  return midiInputs.unsafeBack().size() > 1;
209              }              }
210    
211                inline bool applyTranspose(Event* event);
212      };      };
213    
214  } // namespace LinuxSampler  } // namespace LinuxSampler
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