/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
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revision 411 by schoenebeck, Sat Feb 26 02:01:14 2005 UTC revision 460 by schoenebeck, Mon Mar 14 22:35:44 2005 UTC
# Line 35  Line 35 
35  #include "EngineGlobals.h"  #include "EngineGlobals.h"
36  #include "../../common/RingBuffer.h"  #include "../../common/RingBuffer.h"
37  #include "../../common/Pool.h"  #include "../../common/Pool.h"
38    #include "../../common/ArrayList.h"
39  #include "../../common/ConditionServer.h"  #include "../../common/ConditionServer.h"
40  #include "../common/Engine.h"  #include "../common/Engine.h"
41  #include "../common/Event.h"  #include "../common/Event.h"
# Line 56  namespace LinuxSampler { namespace gig { Line 57  namespace LinuxSampler { namespace gig {
57       * Sampler engine for the Gigasampler format.       * Sampler engine for the Gigasampler format.
58       */       */
59      class Engine : public LinuxSampler::Engine {      class Engine : public LinuxSampler::Engine {
60          public:                    public:
61              // methods              // methods
62              Engine();              Engine();
63             ~Engine();             ~Engine();
             int  RenderAudio(LinuxSampler::gig::EngineChannel* pEngineChannel, uint Samples);  
64              void Connect(AudioOutputDevice* pAudioOut);              void Connect(AudioOutputDevice* pAudioOut);
65    
66              // implementation of abstract methods derived from class 'LinuxSampler::Engine'              // implementation of abstract methods derived from class 'LinuxSampler::Engine'
67                virtual int    RenderAudio(uint Samples);
68              virtual void   SendSysex(void* pData, uint Size);              virtual void   SendSysex(void* pData, uint Size);
69              virtual void   Reset();              virtual void   Reset();
70              virtual void   Enable();              virtual void   Enable();
# Line 78  namespace LinuxSampler { namespace gig { Line 79  namespace LinuxSampler { namespace gig {
79              virtual String Description();              virtual String Description();
80              virtual String Version();              virtual String Version();
81              virtual String EngineName();              virtual String EngineName();
82                            
83          //protected:                      //protected:
84              static InstrumentResourceManager instruments;              static InstrumentResourceManager instruments;
85    
86              AudioOutputDevice*      pAudioOutputDevice;              AudioOutputDevice*      pAudioOutputDevice;
87              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)
88              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer
89              DiskThread*             pDiskThread;                        DiskThread*             pDiskThread;
90              RingBuffer<Event>*      pEventQueue;           ///< Input event queue for engine global events (e.g. SysEx messages).              RingBuffer<Event>*      pEventQueue;           ///< Input event queue for engine global events (e.g. SysEx messages).
91              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.                                                  Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
92              EventGenerator*         pEventGenerator;                          EventGenerator*         pEventGenerator;
93              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.
94              RTList<Event>*          pEvents;               ///< All events for the current audio fragment.              RTList<Event>*          pGlobalEvents;         ///< All engine global events for the current audio fragment (usually only SysEx messages).
95              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.
             RTList<Event>*          pCCEvents;             ///< All control change events for the current audio fragment.  
96              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.
             RTList<Event>*          pSynthesisEvents[Event::destination_count];     ///< Events directly affecting synthesis parameter (like pitch, volume and filter).  
97              float*                  pSynthesisParameters[Event::destination_count]; ///< Matrix with final synthesis parameters for the current audio fragment which will be used in the main synthesis loop.              float*                  pSynthesisParameters[Event::destination_count]; ///< Matrix with final synthesis parameters for the current audio fragment which will be used in the main synthesis loop.
98              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.
99              biquad_param_t*         pMainFilterParameters;  ///< Main biquad parameters of the individual filter (lowpass / bandpass / highpass).              biquad_param_t*         pMainFilterParameters;  ///< Main biquad parameters of the individual filter (lowpass / bandpass / highpass).
100              int                     ActiveVoiceCount;      ///< number of currently active voices              int                     ActiveVoiceCount;      ///< number of currently active voices (this value will be returned for public calls)
101                int                     ActiveVoiceCountTemp;  ///< number of currently active voices (for internal usage, will be used for incrementation)
102              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start
103                int                     VoiceTheftsLeft;       ///< We only allow MAX_AUDIO_VOICES voices to be stolen per audio fragment, we use this variable to ensure this limit.
104                RTList<Voice>::Iterator itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.
105                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.
106                EngineChannel*          pLastStolenChannel;    ///< Only for voice stealing: points to the engine channel on which the previous voice was stolen in this audio fragment.
107              bool                    SuspensionRequested;              bool                    SuspensionRequested;
108              ConditionServer         EngineDisabled;              ConditionServer         EngineDisabled;
109              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
             RTList<Voice>::Iterator itLastStolenVoice;      ///< Only for voice stealing: points to the last voice which 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.  
110              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.
111                uint32_t                RandomSeed;            ///< State of the random number generator used by the random dimension.
112    
113                void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);
114                void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);
115                void RenderStolenVoices(uint Samples);
116                void PostProcess(EngineChannel* pEngineChannel);
117                void ClearEventLists();
118                void ImportEvents(uint Samples);
119              void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);              void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);
120              void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent);              void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent);
121              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);
# Line 129  namespace LinuxSampler { namespace gig { Line 138  namespace LinuxSampler { namespace gig {
138              friend class EGDecay;              friend class EGDecay;
139              friend class VCAManipulator;              friend class VCAManipulator;
140              friend class VCFCManipulator;              friend class VCFCManipulator;
141              friend class VCOManipulator;                          friend class VCOManipulator;
142          private:          private:
143              std::list<EngineChannel*> samplerChannels; ///< All sampler channels of a gig::Engine instance.              ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.
144                            
145              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.
146                            
147              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);
148              void    AdjustScale(int8_t ScaleTunes[12]);              void    AdjustScale(int8_t ScaleTunes[12]);
149      };      };
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