/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
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revision 438 by persson, Wed Mar 9 22:12:15 2005 UTC revision 832 by persson, Sun Feb 5 10:24:05 2006 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"
 #include "../common/BiquadFilter.h"  
 #include "../../lib/fileloader/libgig/gig.h"  
39  #include "../../network/lscp.h"  #include "../../network/lscp.h"
40  #include "EngineChannel.h"  #include "EngineChannel.h"
41    
42    // identifier of this sampler engine
43    #define LS_GIG_ENGINE_NAME "GIG"
44    
45  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
46    
47      // just symbol prototyping      // just symbol prototyping
# Line 59  namespace LinuxSampler { namespace gig { Line 58  namespace LinuxSampler { namespace gig {
58          public:          public:
59              // methods              // methods
60              Engine();              Engine();
61             ~Engine();              virtual ~Engine();
62              void Connect(AudioOutputDevice* pAudioOut);              void Connect(AudioOutputDevice* pAudioOut);
63    
64              // implementation of abstract methods derived from class 'LinuxSampler::Engine'              // implementation of abstract methods derived from class 'LinuxSampler::Engine'
# Line 79  namespace LinuxSampler { namespace gig { Line 78  namespace LinuxSampler { namespace gig {
78              virtual String Version();              virtual String Version();
79              virtual String EngineName();              virtual String EngineName();
80    
81                static const float* VolumeCurve;    ///< Table that maps volume control change values 0..127 to amplitude. Unity gain is at 90.
82                static const float* PanCurve;       ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center).
83                static const float* CrossfadeCurve; ///< Table that maps crossfade control change values 0..127 to amplitude. Unity gain is at 127.
84    
85          //protected:          //protected:
86              static InstrumentResourceManager instruments;              static InstrumentResourceManager instruments;
87    
# Line 90  namespace LinuxSampler { namespace gig { Line 93  namespace LinuxSampler { namespace gig {
93              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
94              EventGenerator*         pEventGenerator;              EventGenerator*         pEventGenerator;
95              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.
96              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).
97              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.  
98              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).  
             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).  
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.              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 RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);
116                void RenderStolenVoices(uint Samples);
117                void PostProcess(EngineChannel* pEngineChannel);
118              void ClearEventLists();              void ClearEventLists();
119              void ImportEvents(RingBuffer<Event>* pEventQueue, uint Samples);              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, bool HandleKeyGroupConflicts);
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);
             void ResetSynthesisParameters(Event::destination_t dst, float val);  
129              void ResetInternal();              void ResetInternal();
130                void ResetScaleTuning();
131    
132              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static Engine* AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
133              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);              static void    FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice);
# Line 128  namespace LinuxSampler { namespace gig { Line 135  namespace LinuxSampler { namespace gig {
135              void DisableAndLock(); // FIXME: should at least be protected              void DisableAndLock(); // FIXME: should at least be protected
136    
137              friend class Voice;              friend class Voice;
             friend class EGADSR;  
             friend class EGDecay;  
             friend class VCAManipulator;  
             friend class VCFCManipulator;  
             friend class VCOManipulator;  
138          private:          private:
139              std::list<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.              ArrayList<EngineChannel*> engineChannels; ///< All engine channels of a gig::Engine instance.
140    
141              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.              static std::map<AudioOutputDevice*,Engine*> engines; ///< All instances of gig::Engine.
142    
143                int SostenutoKeys[128];
144                int SostenutoKeyCount;
145    
146              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);
147              void    AdjustScale(int8_t ScaleTunes[12]);              void    AdjustScale(int8_t ScaleTunes[12]);
148                void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);
149                void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);
150                bool    ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key);
151                static float* InitVolumeCurve();
152                static float* InitPanCurve();
153                static float* InitCrossfadeCurve();
154                static float* InitCurve(const float* segments, int size = 128);
155    
156                unsigned long FrameTime; ///< Time in frames of the start of the current audio fragment
157      };      };
158    
159  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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