/[svn]/linuxsampler/trunk/src/engines/gig/Voice.h
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revision 877 by persson, Sun Jun 25 13:54:17 2006 UTC revision 2012 by iliev, Fri Oct 23 17:53:17 2009 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, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005 - 2007 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 24  Line 24 
24  #ifndef __LS_GIG_VOICE_H__  #ifndef __LS_GIG_VOICE_H__
25  #define __LS_GIG_VOICE_H__  #define __LS_GIG_VOICE_H__
26    
27  #include "../../common/global.h"  #include "../../common/global_private.h"
28    
29  #include <gig.h>  #include <gig.h>
30    
31  #include "../../common/RTMath.h"  #include "../../common/RTMath.h"
32  #include "../../common/Pool.h"  #include "../../common/Pool.h"
33  #include "../../drivers/audio/AudioOutputDevice.h"  #include "../../drivers/audio/AudioOutputDevice.h"
 #include "Engine.h"  
 #include "EngineChannel.h"  
34  #include "Stream.h"  #include "Stream.h"
35  #include "DiskThread.h"  #include "DiskThread.h"
36  #include "EGADSR.h"  #include "EGADSR.h"
37  #include "EGDecay.h"  #include "EGDecay.h"
38  #include "Filter.h"  #include "Filter.h"
39  #include "../common/LFOBase.h"  #include "../common/LFOBase.h"
40    #include "../common/VoiceBase.h"
41  #include "SynthesisParam.h"  #include "SynthesisParam.h"
42  #include "SmoothVolume.h"  #include "SmoothVolume.h"
43    
# Line 65  Line 64 
64  #endif  #endif
65    
66  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
   
67      class Engine;      class Engine;
68        class EngineChannel;
69    
70      /// Reflects a MIDI controller      /// Reflects a MIDI controller
71      struct midi_ctrl {      struct midi_ctrl {
# Line 95  namespace LinuxSampler { namespace gig { Line 94  namespace LinuxSampler { namespace gig {
94       *       *
95       * Renders a voice for the Gigasampler format.       * Renders a voice for the Gigasampler format.
96       */       */
97      class Voice {      class Voice : public LinuxSampler::VoiceBase< ::gig::DimensionRegion> {
98          public:          public:
             // Types  
             enum type_t {  
                 type_normal,  
                 type_release_trigger_required,  ///< If the key of this voice will be released, it causes a release triggered voice to be spawned  
                 type_release_trigger            ///< Release triggered voice which cannot be killed by releasing its key  
             };  
   
99              // Attributes              // Attributes
100              type_t       Type;         ///< Voice Type              type_t       Type;         ///< Voice Type
101              int          MIDIKey;      ///< MIDI key number of the key that triggered the voice              int          MIDIKey;      ///< MIDI key number of the key that triggered the voice
# Line 117  namespace LinuxSampler { namespace gig { Line 109  namespace LinuxSampler { namespace gig {
109              void Render(uint Samples);              void Render(uint Samples);
110              void Reset();              void Reset();
111              void SetOutput(AudioOutputDevice* pAudioOutputDevice);              void SetOutput(AudioOutputDevice* pAudioOutputDevice);
112              void SetEngine(Engine* pEngine);              void SetEngine(LinuxSampler::Engine* pEngine);
113              int  Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup);              int  Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup);
114              inline bool IsActive() { return PlaybackState; }              inline bool IsActive() { return PlaybackState; }
115              inline bool IsStealable() { return !itKillEvent && PlaybackState >= playback_state_ram; }              inline bool IsStealable() { return !itKillEvent && PlaybackState >= playback_state_ram; }
116              void UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent);              void UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent);
117    
118          //private:              virtual ::gig::DimensionRegion* GetRegion() { return pDimRgn; }
             // Types  
             enum playback_state_t {  
                 playback_state_end  = 0,  
                 playback_state_init = 1,  
                 playback_state_ram  = 2,  
                 playback_state_disk = 3  
             };  
119    
120            //private:
121              // Attributes              // Attributes
122              EngineChannel*              pEngineChannel;              EngineChannel*              pEngineChannel;
123              Engine*                     pEngine;            ///< Pointer to the sampler engine, to be able to access the event lists.              Engine*                     pEngine;            ///< Pointer to the sampler engine, to be able to access the event lists.
# Line 144  namespace LinuxSampler { namespace gig { Line 130  namespace LinuxSampler { namespace gig {
130              double                      Pos;                ///< Current playback position in sample              double                      Pos;                ///< Current playback position in sample
131              float                       PitchBase;          ///< Basic pitch depth, stays the same for the whole life time of the voice              float                       PitchBase;          ///< Basic pitch depth, stays the same for the whole life time of the voice
132              float                       PitchBend;          ///< Current pitch value of the pitchbend wheel              float                       PitchBend;          ///< Current pitch value of the pitchbend wheel
133                float                       PitchBendRange;     ///< The pitch range of the pitchbend wheel, value is in cents / 8192
134              float                       CutoffBase;         ///< Cutoff frequency before control change, EG and LFO are applied              float                       CutoffBase;         ///< Cutoff frequency before control change, EG and LFO are applied
135              ::gig::Sample*              pSample;            ///< Pointer to the sample to be played back              ::gig::Sample*              pSample;            ///< Pointer to the sample to be played back
136              ::gig::DimensionRegion*     pDimRgn;            ///< Pointer to the articulation information of current dimension region of this voice              ::gig::DimensionRegion*     pDimRgn;            ///< Pointer to the articulation information of current dimension region of this voice
137                bool                        Orphan;             ///< true if this voice is playing a sample from an instrument that is unloaded. When the voice dies, the sample (and dimension region) will be handed back to the instrument resource manager.
138              playback_state_t            PlaybackState;      ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly              playback_state_t            PlaybackState;      ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly
139              bool                        DiskVoice;          ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false              bool                        DiskVoice;          ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false
140              Stream::reference_t         DiskStreamRef;      ///< Reference / link to the disk stream              Stream::reference_t         DiskStreamRef;      ///< Reference / link to the disk stream
# Line 180  namespace LinuxSampler { namespace gig { Line 168  namespace LinuxSampler { namespace gig {
168              static float CalculateFilterCutoffCoeff();              static float CalculateFilterCutoffCoeff();
169    
170              // Methods              // Methods
171              void KillImmediately();              Stream::Handle KillImmediately(bool bRequestNotification = false);
172              void ProcessEvents(uint Samples);              void ProcessEvents(uint Samples);
173              void Synthesize(uint Samples, sample_t* pSrc, uint Skip);              void Synthesize(uint Samples, sample_t* pSrc, uint Skip);
174              void processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End);              void processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End);
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