/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/Engine.h

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 630 by persson, Sat Jun 11 14:51:49 2005 UTC revision 1321 by schoenebeck, Tue Sep 4 01:12:49 2007 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
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 34  Line 34 
34  #include "../../common/Pool.h"  #include "../../common/Pool.h"
35  #include "../../common/ArrayList.h"  #include "../../common/ArrayList.h"
36  #include "../../common/ConditionServer.h"  #include "../../common/ConditionServer.h"
37  #include "../common/Engine.h"  #include "../Engine.h"
38  #include "../common/Event.h"  #include "../common/Event.h"
 #include "../common/BiquadFilter.h"  
39  #include "../../network/lscp.h"  #include "../../network/lscp.h"
40  #include "EngineChannel.h"  #include "EngineChannel.h"
41    
42  // identifier of this sampler engine  // identifier of this sampler engine
43  #define LS_GIG_ENGINE_NAME "GigEngine"  #define LS_GIG_ENGINE_NAME "GIG"
44    
45  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
46    
# Line 61  namespace LinuxSampler { namespace gig { Line 60  namespace LinuxSampler { namespace gig {
60              Engine();              Engine();
61              virtual ~Engine();              virtual ~Engine();
62              void Connect(AudioOutputDevice* pAudioOut);              void Connect(AudioOutputDevice* pAudioOut);
63                ::gig::DimensionRegion** ChangeInstrument(EngineChannel* pEngineChannel, ::gig::Instrument* pInstrument);
64                void SuspendAll();
65                void ResumeAll();
66                void Suspend(::gig::Region* pRegion);
67                void Resume(::gig::Region* pRegion);
68    
69              // implementation of abstract methods derived from class 'LinuxSampler::Engine'              // implementation of abstract methods derived from class 'LinuxSampler::Engine'
70              virtual int    RenderAudio(uint Samples);              virtual int    RenderAudio(uint Samples);
# Line 78  namespace LinuxSampler { namespace gig { Line 82  namespace LinuxSampler { namespace gig {
82              virtual String Description();              virtual String Description();
83              virtual String Version();              virtual String Version();
84              virtual String EngineName();              virtual String EngineName();
85                virtual InstrumentManager* GetInstrumentManager();
86    
87                static const float* VolumeCurve;    ///< Table that maps volume control change values 0..127 to amplitude. Unity gain is at 90.
88                static const float* PanCurve;       ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center).
89                static const float* CrossfadeCurve; ///< Table that maps crossfade control change values 0..127 to amplitude. Unity gain is at 127.
90    
91          //protected:          //protected:
92              static InstrumentResourceManager instruments;              static InstrumentResourceManager instruments;
# Line 86  namespace LinuxSampler { namespace gig { Line 95  namespace LinuxSampler { namespace gig {
95              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)
96              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer
97              DiskThread*             pDiskThread;              DiskThread*             pDiskThread;
98              RingBuffer<Event>*      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).
99              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
100              EventGenerator*         pEventGenerator;              EventGenerator*         pEventGenerator;
101              RTList<Event>*          pVoiceStealingQueue;   ///< All voice-launching events which had to be postponed due to free voice shortage.              RTList<Event>*          pVoiceStealingQueue;   ///< All voice-launching events which had to be postponed due to free voice shortage.
102              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).
103              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.
104              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.              RingBuffer<uint8_t,false>* pSysexBuffer;       ///< Input buffer for MIDI system exclusive messages.
             float*                  pSynthesisParameters[Event::destination_count]; ///< Matrix with final synthesis parameters for the current audio fragment which will be used in the main synthesis loop.  
             biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.  
             biquad_param_t*         pMainFilterParameters;  ///< Main biquad parameters of the individual filter (lowpass / bandpass / highpass).  
105              int                     ActiveVoiceCount;      ///< number of currently active voices (this value will be returned for public calls)              int                     ActiveVoiceCount;      ///< number of currently active voices (this value will be returned for public calls)
106              int                     ActiveVoiceCountTemp;  ///< number of currently active voices (for internal usage, will be used for incrementation)              int                     ActiveVoiceCountTemp;  ///< number of currently active voices (for internal usage, will be used for incrementation)
107              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start
108              int                     VoiceTheftsLeft;       ///< We only allow CONFIG_MAX_VOICES voices to be stolen 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.
109              RTList<Voice>::Iterator itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.              RTList<Voice>::Iterator itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.
110              RTList<uint>::Iterator  iuiLastStolenKey;      ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise.              RTList<uint>::Iterator  iuiLastStolenKey;      ///< Only for voice stealing: key number of last key on which the last voice was theft in current audio fragment, NULL otherwise.
111              EngineChannel*          pLastStolenChannel;    ///< Only for voice stealing: points to the engine channel on which the previous voice was stolen in this audio fragment.              EngineChannel*          pLastStolenChannel;    ///< Only for voice stealing: points to the engine channel on which the previous voice was stolen in this audio fragment.
112                RTList<Voice>::Iterator itLastStolenVoiceGlobally; ///< Same as itLastStolenVoice, but engine globally
113                RTList<uint>::Iterator  iuiLastStolenKeyGlobally;  ///< Same as iuiLastStolenKey, but engine globally
114              bool                    SuspensionRequested;              bool                    SuspensionRequested;
115              ConditionServer         EngineDisabled;              ConditionServer         EngineDisabled;
116              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
117              int                     MaxFadeOutPos;         ///< The last position in an audio fragment to allow an instant fade out (e.g. for voice stealing) without leading to clicks.              int                     MaxFadeOutPos;         ///< The last position in an audio fragment to allow an instant fade out (e.g. for voice stealing) without leading to clicks.
118              uint32_t                RandomSeed;            ///< State of the random number generator used by the random dimension.              uint32_t                RandomSeed;            ///< State of the random number generator used by the random dimension.
119                Mutex                   ResetInternalMutex;    ///< Mutex to protect the ResetInternal function for concurrent usage (e.g. by the lscp and instrument loader threads).
120    
121              void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);              void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);
122              void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);              void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);
123              void RenderStolenVoices(uint Samples);              void RenderStolenVoices(uint Samples);
124                void RouteAudio(EngineChannel* pEngineChannel, uint Samples);
125              void PostProcess(EngineChannel* pEngineChannel);              void PostProcess(EngineChannel* pEngineChannel);
126              void ClearEventLists();              void ClearEventLists();
127              void ImportEvents(uint Samples);              void ImportEvents(uint Samples);
# Line 120  namespace LinuxSampler { namespace gig { Line 130  namespace LinuxSampler { namespace gig {
130              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);
131              void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent);              void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent);
132              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);
133              Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing);              void ProcessSuspensionsChanges();
134                void ProcessPendingStreamDeletions();
135                Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts);
136              int  StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);              int  StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);
137              void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice);              void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice);
138              void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey);              void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey);
             void ResetSynthesisParameters(Event::destination_t dst, float val);  
139              void ResetInternal();              void ResetInternal();
140                void ResetScaleTuning();
141                void ResetSuspendedRegions();
142    
143              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
144              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
# Line 133  namespace LinuxSampler { namespace gig { Line 146  namespace LinuxSampler { namespace gig {
146              void DisableAndLock(); // FIXME: should at least be protected              void DisableAndLock(); // FIXME: should at least be protected
147    
148              friend class Voice;              friend class Voice;
             friend class EGADSR;  
             friend class EGDecay;  
             friend class VCAManipulator;  
             friend class VCFCManipulator;  
             friend class VCOManipulator;  
149          private:          private:
150    
151                /// Command used by the instrument loader thread to
152                /// request an instrument change on a channel.
153                struct instrument_change_command_t {
154                    EngineChannel* pEngineChannel;
155                    ::gig::Instrument* pInstrument;
156                };
157                struct instrument_change_reply_t {
158                    int dummy;
159                };
160                RingBuffer<instrument_change_command_t,false>* InstrumentChangeQueue;      ///< Contains the instrument change command
161                RingBuffer<instrument_change_reply_t,false>*   InstrumentChangeReplyQueue; ///< Contains the acknowledge of an instrument change
162               ::gig::DimensionRegion** pDimRegionsInUse; ///< After an instrument change, this contains a list of dimension regions that are still in use by playing voices
163    
164                Pool< ::gig::Region*> SuspendedRegions;
165                Mutex                 SuspendedRegionsMutex;
166                Condition             SuspensionChangeOngoing;
167                ::gig::Region*        pPendingRegionSuspension;
168                ::gig::Region*        pPendingRegionResumption;
169                int                   iPendingStreamDeletions;
170    
171              ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.              ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.
172    
173              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.
174    
175              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);              int SostenutoKeys[128];
176                int SostenutoKeyCount;
177    
178                uint8_t GSCheckSum(const RingBuffer<uint8_t,false>::NonVolatileReader AddrReader, uint DataSize);
179              void    AdjustScale(int8_t ScaleTunes[12]);              void    AdjustScale(int8_t ScaleTunes[12]);
180              void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);              void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);
181              void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);              void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);
182                bool    ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key);
183                bool    RegionSuspended(::gig::Region* pRegion);
184                static float* InitVolumeCurve();
185                static float* InitPanCurve();
186                static float* InitCrossfadeCurve();
187                static float* InitCurve(const float* segments, int size = 128);
188    
189              unsigned long FrameTime; ///< Time in frames of the start of the current audio fragment              unsigned long FrameTime; ///< Time in frames of the start of the current audio fragment
190      };      };
Legend:
Removed from v.630  
changed lines
  Added in v.1321
  ViewVC Help
Powered by ViewVC