/[svn]/linuxsampler/trunk/src/engines/gig/Engine.h
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revision 776 by iliev, Wed Sep 21 19:05:41 2005 UTC revision 970 by schoenebeck, Wed Dec 6 22:28:17 2006 UTC
# Line 3  Line 3 
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, 2006 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"
39  #include "../../network/lscp.h"  #include "../../network/lscp.h"
40  #include "EngineChannel.h"  #include "EngineChannel.h"
# Line 77  namespace LinuxSampler { namespace gig { Line 77  namespace LinuxSampler { namespace gig {
77              virtual String Description();              virtual String Description();
78              virtual String Version();              virtual String Version();
79              virtual String EngineName();              virtual String EngineName();
80                virtual InstrumentManager* GetInstrumentManager();
81    
82                static const float* VolumeCurve;    ///< Table that maps volume control change values 0..127 to amplitude. Unity gain is at 90.
83                static const float* PanCurve;       ///< Table that maps pan control change values 0..128 to right channel amplitude. Unity gain is at 64 (center).
84                static const float* CrossfadeCurve; ///< Table that maps crossfade control change values 0..127 to amplitude. Unity gain is at 127.
85    
86          //protected:          //protected:
87              static InstrumentResourceManager instruments;              static InstrumentResourceManager instruments;
# Line 85  namespace LinuxSampler { namespace gig { Line 90  namespace LinuxSampler { namespace gig {
90              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)              uint                    SampleRate;            ///< Sample rate of the engines output audio signal (in Hz)
91              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer              uint                    MaxSamplesPerCycle;    ///< Size of each audio output buffer
92              DiskThread*             pDiskThread;              DiskThread*             pDiskThread;
93              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).
94              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.              Pool<Voice>*            pVoicePool;            ///< Contains all voices that can be activated.
95              EventGenerator*         pEventGenerator;              EventGenerator*         pEventGenerator;
96              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.
97              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).
98              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.              Pool<Event>*            pEventPool;            ///< Contains all Event objects that can be used.
99              RingBuffer<uint8_t>*    pSysexBuffer;          ///< Input buffer for MIDI system exclusive messages.              RingBuffer<uint8_t,false>* pSysexBuffer;       ///< Input buffer for MIDI system exclusive messages.
100              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)
101              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)
102              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start              int                     ActiveVoiceCountMax;   ///< the maximum voice usage since application start
# Line 106  namespace LinuxSampler { namespace gig { Line 111  namespace LinuxSampler { namespace gig {
111              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
112              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.
113              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.
114                Mutex                   ResetInternalMutex;    ///< Mutex to protect the ResetInternal function for concurrent usage (e.g. by the lscp and instrument loader threads).
115    
116              void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);              void ProcessEvents(EngineChannel* pEngineChannel, uint Samples);
117              void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);              void RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples);
# Line 139  namespace LinuxSampler { namespace gig { Line 145  namespace LinuxSampler { namespace gig {
145              int SostenutoKeys[128];              int SostenutoKeys[128];
146              int SostenutoKeyCount;              int SostenutoKeyCount;
147    
148              uint8_t GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize);              uint8_t GSCheckSum(const RingBuffer<uint8_t,false>::NonVolatileReader AddrReader, uint DataSize);
149              void    AdjustScale(int8_t ScaleTunes[12]);              void    AdjustScale(int8_t ScaleTunes[12]);
150              void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);              void    ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent);
151              void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);              void    KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent);
152              bool    ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key);              bool    ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key);
153                static float* InitVolumeCurve();
154                static float* InitPanCurve();
155                static float* InitCrossfadeCurve();
156                static float* InitCurve(const float* segments, int size = 128);
157    
158              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
159      };      };
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