/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
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revision 412 by schoenebeck, Sat Feb 26 22:44:51 2005 UTC revision 663 by schoenebeck, Sat Jun 18 21:37:03 2005 UTC
# Line 26  Line 26 
26    
27  #include "../../common/global.h"  #include "../../common/global.h"
28    
 #if DEBUG_HEADERS  
 # warning Engine.h included  
 #endif // DEBUG_HEADERS  
   
29  #include <map>  #include <map>
30    #include <gig.h>
31    
32  #include "EngineGlobals.h"  #include "EngineGlobals.h"
33  #include "../../common/RingBuffer.h"  #include "../../common/RingBuffer.h"
34  #include "../../common/Pool.h"  #include "../../common/Pool.h"
35    #include "../../common/ArrayList.h"
36  #include "../../common/ConditionServer.h"  #include "../../common/ConditionServer.h"
37  #include "../common/Engine.h"  #include "../common/Engine.h"
38  #include "../common/Event.h"  #include "../common/Event.h"
39  #include "../common/BiquadFilter.h"  #include "../common/BiquadFilter.h"
 #include "../../lib/fileloader/libgig/gig.h"  
40  #include "../../network/lscp.h"  #include "../../network/lscp.h"
41  #include "EngineChannel.h"  #include "EngineChannel.h"
42    
43    // identifier of this sampler engine
44    #define LS_GIG_ENGINE_NAME "GigEngine"
45    
46  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
47    
48      // just symbol prototyping      // just symbol prototyping
# Line 56  namespace LinuxSampler { namespace gig { Line 56  namespace LinuxSampler { namespace gig {
56       * Sampler engine for the Gigasampler format.       * Sampler engine for the Gigasampler format.
57       */       */
58      class Engine : public LinuxSampler::Engine {      class Engine : public LinuxSampler::Engine {
59          public:                    public:
60              // methods              // methods
61              Engine();              Engine();
62             ~Engine();              virtual ~Engine();
63              void Connect(AudioOutputDevice* pAudioOut);              void Connect(AudioOutputDevice* pAudioOut);
64    
65              // implementation of abstract methods derived from class 'LinuxSampler::Engine'              // implementation of abstract methods derived from class 'LinuxSampler::Engine'
# Line 78  namespace LinuxSampler { namespace gig { Line 78  namespace LinuxSampler { namespace gig {
78              virtual String Description();              virtual String Description();
79              virtual String Version();              virtual String Version();
80              virtual String EngineName();              virtual String EngineName();
81                            
82          //protected:                      //protected:
83              static InstrumentResourceManager instruments;              static InstrumentResourceManager instruments;
84    
85              AudioOutputDevice*      pAudioOutputDevice;              AudioOutputDevice*      pAudioOutputDevice;
86              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)
87              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer
88              DiskThread*             pDiskThread;                        DiskThread*             pDiskThread;
89              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).
90              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.                                                  Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
91              EventGenerator*         pEventGenerator;                          EventGenerator*         pEventGenerator;
92              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.
93              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).
94              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.  
95              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).  
96              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.
97              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.
98              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).
99              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)
100              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)
101              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start
102                int                     VoiceSpawnsLeft;       ///< We only allow CONFIG_MAX_VOICES voices to be spawned per audio fragment, we use this variable to ensure this limit.
103                RTList<Voice>::Iterator itLastStolenVoice;     ///< Only for voice stealing: points to the last voice which was theft in current audio fragment, NULL otherwise.
104                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.
105                EngineChannel*          pLastStolenChannel;    ///< Only for voice stealing: points to the engine channel on which the previous voice was stolen in this audio fragment.
106                RTList<Voice>::Iterator itLastStolenVoiceGlobally; ///< Same as itLastStolenVoice, but engine globally
107                RTList<uint>::Iterator  iuiLastStolenKeyGlobally;  ///< Same as iuiLastStolenKey, but engine globally
108              bool                    SuspensionRequested;              bool                    SuspensionRequested;
109              ConditionServer         EngineDisabled;              ConditionServer         EngineDisabled;
110              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
111              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.
112                uint32_t                RandomSeed;            ///< State of the random number generator used by the random dimension.
113    
114              void RenderAudio(EngineChannel* pEngineChannel, uint Samples);              void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);
115              void ClearEventLists();                          void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);
116              void ImportEvents(RingBuffer<Event>* pEventQueue, uint Samples);              void RenderStolenVoices(uint Samples);
117                void PostProcess(EngineChannel* pEngineChannel);
118                void ClearEventLists();
119                void ImportEvents(uint Samples);
120              void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);              void ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);
121              void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent);              void ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent);
122              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);              void ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent);
123              void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent);              void ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent);
124              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);
125              Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing);              Pool<Voice>::Iterator LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing);
126              void StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);              int  StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent);
127              void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice);              void FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice);
128              void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey);              void FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey);
129              void ResetSynthesisParameters(Event::destination_t dst, float val);              void ResetSynthesisParameters(Event::destination_t dst, float val);
130              void ResetInternal();              void ResetInternal();
131                void ResetScaleTuning();
132    
133              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
134              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
# Line 131  namespace LinuxSampler { namespace gig { Line 140  namespace LinuxSampler { namespace gig {
140              friend class EGDecay;              friend class EGDecay;
141              friend class VCAManipulator;              friend class VCAManipulator;
142              friend class VCFCManipulator;              friend class VCFCManipulator;
143              friend class VCOManipulator;                          friend class VCOManipulator;
144          private:          private:
145              std::list<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.              ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.
146                            
147              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.
148                            
149              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);
150              void    AdjustScale(int8_t ScaleTunes[12]);              void    AdjustScale(int8_t ScaleTunes[12]);
151                void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);
152                void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);
153    
154                unsigned long FrameTime; ///< Time in frames of the start of the current audio fragment
155      };      };
156    
157  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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