/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
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revision 250 by schoenebeck, Mon Sep 20 00:31:13 2004 UTC revision 376 by senkov, Sat Feb 12 23:48:50 2005 UTC
# Line 32  Line 32 
32  #include <map>  #include <map>
33    
34  #include "../../common/RingBuffer.h"  #include "../../common/RingBuffer.h"
35  #include "../../common/RTELMemoryPool.h"  #include "../../common/Pool.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"
# Line 58  namespace LinuxSampler { namespace gig { Line 58  namespace LinuxSampler { namespace gig {
58      /**      /**
59       * Sampler engine for the Gigasampler format.       * Sampler engine for the Gigasampler format.
60       */       */
61      class gig::Engine : public LinuxSampler::Engine, public InstrumentConsumer {      class Engine : public LinuxSampler::Engine, public InstrumentConsumer {
62          public:          public:
63              // types              // types
64              enum voice_steal_algo_t {              enum voice_steal_algo_t {
# Line 100  namespace LinuxSampler { namespace gig { Line 100  namespace LinuxSampler { namespace gig {
100              virtual String Version();              virtual String Version();
101              virtual String EngineName();              virtual String EngineName();
102              virtual String InstrumentFileName();              virtual String InstrumentFileName();
103                virtual String InstrumentName();
104              virtual int    InstrumentIndex();              virtual int    InstrumentIndex();
105              virtual int    InstrumentStatus();              virtual int    InstrumentStatus();
106    
107              // abstract methods derived from interface class 'InstrumentConsumer'              // abstract methods derived from interface class 'InstrumentConsumer'
108              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);              virtual void ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg);
109              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);              virtual void ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg);
110          protected:          //protected:
111              struct midi_key_info_t {              struct midi_key_info_t {
112                  RTEList<Voice>* pActiveVoices;  ///< Contains the active voices associated with the MIDI key.                  RTList<Voice>*  pActiveVoices;  ///< Contains the active voices associated with the MIDI key.
113                  bool            KeyPressed;     ///< Is true if the respective MIDI key is currently pressed.                  bool            KeyPressed;     ///< Is true if the respective MIDI key is currently pressed.
114                  bool            Active;         ///< If the key contains active voices.                  bool            Active;         ///< If the key contains active voices.
115                  bool            ReleaseTrigger; ///< If we have to launch release triggered voice(s) when the key is released                  bool            ReleaseTrigger; ///< If we have to launch release triggered voice(s) when the key is released
116                  uint*           pSelf;          ///< hack to allow fast deallocation of the key from the list of active keys                  Pool<uint>::Iterator itSelf;         ///< hack to allow fast deallocation of the key from the list of active keys
117                  RTEList<Event>* pEvents;        ///< Key specific events (only Note-on, Note-off and sustain pedal currently)                  RTList<Event>*  pEvents;        ///< Key specific events (only Note-on, Note-off and sustain pedal currently)
118              };              };
119    
120              static InstrumentResourceManager Instruments;              static InstrumentResourceManager Instruments;
# Line 130  namespace LinuxSampler { namespace gig { Line 131  namespace LinuxSampler { namespace gig {
131              RingBuffer<Event>*      pEventQueue;           ///< Input event queue.              RingBuffer<Event>*      pEventQueue;           ///< Input event queue.
132              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.
133              midi_key_info_t         pMIDIKeyInfo[128];     ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key              midi_key_info_t         pMIDIKeyInfo[128];     ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key
134              RTELMemoryPool<Voice>*  pVoicePool;            ///< Contains all voices that can be activated.              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
135              RTELMemoryPool<uint>*   pActiveKeys;           ///< Holds all keys in it's allocation list with active voices.              Pool<uint>*             pActiveKeys;           ///< Holds all keys in it's allocation list with active voices.
136              RTELMemoryPool<Event>*  pEventPool;            ///< Contains all Event objects that can be used.              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.
137              EventGenerator*         pEventGenerator;              EventGenerator*         pEventGenerator;
138              RTEList<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.
139              RTEList<Event>*         pEvents;               ///< All events for the current audio fragment.              RTList<Event>*          pEvents;               ///< All events for the current audio fragment.
140              RTEList<Event>*         pCCEvents;             ///< All control change events for the current audio fragment.              RTList<Event>*          pCCEvents;             ///< All control change events for the current audio fragment.
141              RTEList<Event>*         pSynthesisEvents[Event::destination_count];     ///< Events directly affecting synthesis parameter (like pitch, volume and filter).              RTList<Event>*          pSynthesisEvents[Event::destination_count];     ///< Events directly affecting synthesis parameter (like pitch, volume and filter).
142              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.
143              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.              biquad_param_t*         pBasicFilterParameters; ///< Biquad parameters of the basic bandpass filter.
144              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).
# Line 148  namespace LinuxSampler { namespace gig { Line 149  namespace LinuxSampler { namespace gig {
149              bool                    SustainPedal;          ///< true if sustain pedal is down              bool                    SustainPedal;          ///< true if sustain pedal is down
150              double                  GlobalVolume;          ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)              double                  GlobalVolume;          ///< overall volume (a value < 1.0 means attenuation, a value > 1.0 means amplification)
151              int                     Pitch;                 ///< Current (absolute) MIDI pitch value.              int                     Pitch;                 ///< Current (absolute) MIDI pitch value.
152                int                     CurrentKeyDimension;   ///< Current value (0-127) for the keyboard dimension, altered by pressing a keyswitching key.
153              int                     ActiveVoiceCount;      ///< number of currently active voices              int                     ActiveVoiceCount;      ///< number of currently active voices
154              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start
155              bool                    SuspensionRequested;              bool                    SuspensionRequested;
156              ConditionServer         EngineDisabled;              ConditionServer         EngineDisabled;
157              String                  InstrumentFile;              String                  InstrumentFile;
158              int                     InstrumentIdx;              int                     InstrumentIdx;
159                String                  InstrumentIdxName;
160              int                     InstrumentStat;              int                     InstrumentStat;
161              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
162              Voice*                  pLastStolenVoice;      ///< 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.
163              uint*                   puiLastStolenKey;      ///< 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.
164                int                     MaxFadeOutPos;         ///< The last position in an audio fragment to allow a instant fade out (e.g. for voice stealing) without leading to clicks.
165              void ProcessNoteOn(Event* pNoteOnEvent);  
166              void ProcessNoteOff(Event* pNoteOffEvent);              void ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent);
167              void ProcessPitchbend(Event* pPitchbendEvent);              void ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent);
168              void ProcessControlChange(Event* pControlChangeEvent);              void ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent);
169              void ProcessSysex(Event* pSysexEvent);              void ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent);
170              Voice* LaunchVoice(Event* pNoteOnEvent, int iLayer = 0, bool ReleaseTriggerVoice = false, bool VoiceStealing = true);              void ProcessSysex(Pool<Event>::Iterator& itSysexEvent);
171              void StealVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice);              Pool<Voice>::Iterator LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing);
172              void KillVoiceImmediately(Voice* pVoice);              void StealVoice(Pool<Event>::Iterator& itNoteOnEvent);
173                void FreeVoice(Pool<Voice>::Iterator& itVoice);
174                void FreeKey(midi_key_info_t* pKey);
175              void ResetSynthesisParameters(Event::destination_t dst, float val);              void ResetSynthesisParameters(Event::destination_t dst, float val);
176              void ResetInternal();              void ResetInternal();
177    
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