/[svn]/linuxsampler/trunk/src/engines/gig/Voice.h
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/Voice.h

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 687 by schoenebeck, Tue Jul 12 22:37:21 2005 UTC revision 829 by schoenebeck, Sat Jan 14 14:07:47 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 33  Line 33 
33  #include "../../common/Pool.h"  #include "../../common/Pool.h"
34  #include "../../drivers/audio/AudioOutputDevice.h"  #include "../../drivers/audio/AudioOutputDevice.h"
35  #include "../common/BiquadFilter.h"  #include "../common/BiquadFilter.h"
 //#include "EngineGlobals.h"  
36  #include "Engine.h"  #include "Engine.h"
37  #include "EngineChannel.h"  #include "EngineChannel.h"
38  #include "Stream.h"  #include "Stream.h"
39  #include "DiskThread.h"  #include "DiskThread.h"
40    #include "EGADSR.h"
41  #include "EGDecay.h"  #include "EGDecay.h"
42  #include "Filter.h"  #include "Filter.h"
43  #include "../common/LFO.h"  #include "../common/LFOBase.h"
44    #include "SynthesisParam.h"
45    
46    // include the appropriate (unsigned) triangle LFO implementation
47    #if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
48    # include "../common/LFOTriangleIntMath.h"
49    #elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
50    # include "../common/LFOTriangleIntAbsMath.h"
51    #elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
52    # include "../common/LFOTriangleDiHarmonic.h"
53    #else
54    # error "Unknown or no (unsigned) triangle LFO implementation selected!"
55    #endif
56    
57    // include the appropriate (signed) triangle LFO implementation
58    #if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
59    # include "../common/LFOTriangleIntMath.h"
60    #elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
61    # include "../common/LFOTriangleIntAbsMath.h"
62    #elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
63    # include "../common/LFOTriangleDiHarmonic.h"
64    #else
65    # error "Unknown or no (signed) triangle LFO implementation selected!"
66    #endif
67    
68  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
69    
70      class Engine;      class Engine;
     class EGADSR;  
     class EGDecay;  
     class VCAManipulator;  
     class VCFCManipulator;  
     class VCOManipulator;  
71    
72      /// Reflects a MIDI controller      /// Reflects a MIDI controller
73      struct midi_ctrl {      struct midi_ctrl {
# Line 59  namespace LinuxSampler { namespace gig { Line 76  namespace LinuxSampler { namespace gig {
76          float   fvalue;     ///< Transformed / effective value (e.g. volume level or filter cutoff frequency)          float   fvalue;     ///< Transformed / effective value (e.g. volume level or filter cutoff frequency)
77      };      };
78    
79        #if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
80        typedef LFOTriangleIntMath<range_unsigned> LFOUnsigned;
81        #elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
82        typedef LFOTriangleIntAbsMath<range_unsigned> LFOUnsigned;
83        #elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
84        typedef LFOTriangleDiHarmonic<range_unsigned> LFOUnsigned;
85        #endif
86    
87        #if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
88        typedef LFOTriangleIntMath<range_signed> LFOSigned;
89        #elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
90        typedef LFOTriangleIntAbsMath<range_signed> LFOSigned;
91        #elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
92        typedef LFOTriangleDiHarmonic<range_signed> LFOSigned;
93        #endif
94    
95      /** Gig Voice      /** Gig Voice
96       *       *
97       * Renders a voice for the Gigasampler format.       * Renders a voice for the Gigasampler format.
# Line 71  namespace LinuxSampler { namespace gig { Line 104  namespace LinuxSampler { namespace gig {
104                  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_required,  ///< If the key of this voice will be released, it causes a release triggered voice to be spawned
105                  type_release_trigger            ///< Release triggered voice which cannot be killed by releasing its key                  type_release_trigger            ///< Release triggered voice which cannot be killed by releasing its key
106              };              };
107                
108              // Attributes              // Attributes
109              type_t       Type;         ///< Voice Type              type_t       Type;         ///< Voice Type
110              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 89  namespace LinuxSampler { namespace gig { Line 122  namespace LinuxSampler { namespace gig {
122              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);
123              inline bool IsActive() { return PlaybackState; }              inline bool IsActive() { return PlaybackState; }
124              inline bool IsStealable() { return !itKillEvent && PlaybackState >= playback_state_ram; }              inline bool IsStealable() { return !itKillEvent && PlaybackState >= playback_state_ram; }
125                void UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent);
126    
127          //private:          //private:
128              // Types              // Types
129              enum playback_state_t {              enum playback_state_t {
# Line 108  namespace LinuxSampler { namespace gig { Line 143  namespace LinuxSampler { namespace gig {
143              double                      Pos;                ///< Current playback position in sample              double                      Pos;                ///< Current playback position in sample
144              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
145              float                       PitchBend;          ///< Current pitch value of the pitchbend wheel              float                       PitchBend;          ///< Current pitch value of the pitchbend wheel
146                float                       CutoffBase;         ///< Cutoff frequency before control change, EG and LFO are applied
147              ::gig::Sample*              pSample;            ///< Pointer to the sample to be played back              ::gig::Sample*              pSample;            ///< Pointer to the sample to be played back
148              ::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
149              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
# Line 116  namespace LinuxSampler { namespace gig { Line 152  namespace LinuxSampler { namespace gig {
152              int                         RealSampleWordsLeftToRead; ///< Number of samples left to read, not including the silence added for the interpolator              int                         RealSampleWordsLeftToRead; ///< Number of samples left to read, not including the silence added for the interpolator
153              unsigned long               MaxRAMPos;          ///< The upper allowed limit (not actually the end) in the RAM sample cache, after that point it's not safe to chase the interpolator another time over over the current cache position, instead we switch to disk then.              unsigned long               MaxRAMPos;          ///< The upper allowed limit (not actually the end) in the RAM sample cache, after that point it's not safe to chase the interpolator another time over over the current cache position, instead we switch to disk then.
154              bool                        RAMLoop;            ///< If this voice has a loop defined which completely fits into the cached RAM part of the sample, in this case we handle the looping within the voice class, else if the loop is located in the disk stream part, we let the disk stream handle the looping              bool                        RAMLoop;            ///< If this voice has a loop defined which completely fits into the cached RAM part of the sample, in this case we handle the looping within the voice class, else if the loop is located in the disk stream part, we let the disk stream handle the looping
155              uint                        LoopCyclesLeft;     ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed              //uint                        LoopCyclesLeft;     ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed
156              uint                        Delay;              ///< Number of sample points the rendering process of this voice should be delayed (jitter correction), will be set to 0 after the first audio fragment cycle              uint                        Delay;              ///< Number of sample points the rendering process of this voice should be delayed (jitter correction), will be set to 0 after the first audio fragment cycle
157              EGADSR*                     pEG1;               ///< Envelope Generator 1 (Amplification)              EGADSR                      EG1;                ///< Envelope Generator 1 (Amplification)
158              EGADSR*                     pEG2;               ///< Envelope Generator 2 (Filter cutoff frequency)              EGADSR                      EG2;                ///< Envelope Generator 2 (Filter cutoff frequency)
159              EGDecay*                    pEG3;               ///< Envelope Generator 3 (Pitch)              EGDecay                     EG3;                ///< Envelope Generator 3 (Pitch)
             Filter                      FilterLeft;  
             Filter                      FilterRight;  
160              midi_ctrl                   VCFCutoffCtrl;              midi_ctrl                   VCFCutoffCtrl;
161              midi_ctrl                   VCFResonanceCtrl;              midi_ctrl                   VCFResonanceCtrl;
             int                         FilterUpdateCounter; ///< Used to update filter parameters all FILTER_UPDATE_PERIOD samples  
162              static const float          FILTER_CUTOFF_COEFF;              static const float          FILTER_CUTOFF_COEFF;
163              static const int            FILTER_UPDATE_MASK;              LFOUnsigned*                pLFO1;               ///< Low Frequency Oscillator 1 (Amplification)
164              VCAManipulator*             pVCAManipulator;              LFOUnsigned*                pLFO2;               ///< Low Frequency Oscillator 2 (Filter cutoff frequency)
165              VCFCManipulator*            pVCFCManipulator;              LFOSigned*                  pLFO3;               ///< Low Frequency Oscillator 3 (Pitch)
             VCOManipulator*             pVCOManipulator;  
             LFO<gig::VCAManipulator>*   pLFO1;              ///< Low Frequency Oscillator 1 (Amplification)  
             LFO<gig::VCFCManipulator>*  pLFO2;             ///< Low Frequency Oscillator 2 (Filter cutoff frequency)  
             LFO<gig::VCOManipulator>*   pLFO3;              ///< Low Frequency Oscillator 3 (Pitch)  
166              bool                        bLFO1Enabled;        ///< Should we use the Amplitude LFO for this voice?              bool                        bLFO1Enabled;        ///< Should we use the Amplitude LFO for this voice?
167              bool                        bLFO2Enabled;        ///< Should we use the Filter Cutoff LFO for this voice?              bool                        bLFO2Enabled;        ///< Should we use the Filter Cutoff LFO for this voice?
168              bool                        bLFO3Enabled;        ///< Should we use the Pitch LFO for this voice?              bool                        bLFO3Enabled;        ///< Should we use the Pitch LFO for this voice?
# Line 142  namespace LinuxSampler { namespace gig { Line 171  namespace LinuxSampler { namespace gig {
171              Pool<Event>::Iterator       itKillEvent;         ///< Event which caused this voice to be killed              Pool<Event>::Iterator       itKillEvent;         ///< Event which caused this voice to be killed
172          //private:          //private:
173              int                         SynthesisMode;              int                         SynthesisMode;
174                float                       fFinalVolume;
175                float                       fFinalCutoff;
176                float                       fFinalResonance;
177                SynthesisParam              finalSynthesisParameters;
178                Loop                        loop;
179    
180              // Static Methods              // Static Methods
181              static float CalculateFilterCutoffCoeff();              static float CalculateFilterCutoffCoeff();
             static int   CalculateFilterUpdateMask();  
182    
183              // Methods              // Methods
184              void KillImmediately();              void KillImmediately();
185              void ProcessEvents(uint Samples);              void ProcessEvents(uint Samples);
             void CalculateBiquadParameters(uint Samples);  
186              void Synthesize(uint Samples, sample_t* pSrc, uint Skip);              void Synthesize(uint Samples, sample_t* pSrc, uint Skip);
187                void processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End);
188                void processCCEvents(RTList<Event>::Iterator& itEvent, uint End);
189                void processPitchEvent(RTList<Event>::Iterator& itEvent);
190                void processCrossFadeEvent(RTList<Event>::Iterator& itEvent);
191                void processCutoffEvent(RTList<Event>::Iterator& itEvent);
192                void processResonanceEvent(RTList<Event>::Iterator& itEvent);
193    
194              inline float CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) {              inline float CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) {
195                  float att = (!pDimRgn->Crossfade.out_end) ? CrossfadeControllerValue / 127.0f /* 0,0,0,0 means no crossfade defined */                  float att = (!pDimRgn->Crossfade.out_end) ? CrossfadeControllerValue / 127.0f /* 0,0,0,0 means no crossfade defined */
Legend:
Removed from v.687  
changed lines
  Added in v.829
  ViewVC Help
Powered by ViewVC