/[svn]/linuxsampler/trunk/src/engines/gig/Voice.h
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revision 729 by persson, Tue Jul 26 11:18:46 2005 UTC revision 738 by schoenebeck, Tue Aug 16 17:14:25 2005 UTC
# 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    
45    // include the appropriate (unsigned) triangle LFO implementation
46    #if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
47    # include "../common/LFOTriangleIntMath.h"
48    #elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
49    # include "../common/LFOTriangleIntAbsMath.h"
50    #elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
51    # include "../common/LFOTriangleDiHarmonic.h"
52    #else
53    # error "Unknown or no (unsigned) triangle LFO implementation selected!"
54    #endif
55    
56    // include the appropriate (signed) triangle LFO implementation
57    #if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
58    # include "../common/LFOTriangleIntMath.h"
59    #elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
60    # include "../common/LFOTriangleIntAbsMath.h"
61    #elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
62    # include "../common/LFOTriangleDiHarmonic.h"
63    #else
64    # error "Unknown or no (signed) triangle LFO implementation selected!"
65    #endif
66    
67  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
68    
69      class Engine;      class Engine;
     class EGADSR;  
     class EGDecay;  
     class VCAManipulator;  
     class VCFCManipulator;  
     class VCOManipulator;  
70    
71      /// Reflects a MIDI controller      /// Reflects a MIDI controller
72      struct midi_ctrl {      struct midi_ctrl {
# Line 59  namespace LinuxSampler { namespace gig { Line 75  namespace LinuxSampler { namespace gig {
75          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)
76      };      };
77    
78        #if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
79        typedef LFOTriangleIntMath<range_unsigned> LFOUnsigned;
80        #elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
81        typedef LFOTriangleIntAbsMath<range_unsigned> LFOUnsigned;
82        #elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
83        typedef LFOTriangleDiHarmonic<range_unsigned> LFOUnsigned;
84        #endif
85    
86        #if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION
87        typedef LFOTriangleIntMath<range_signed> LFOSigned;
88        #elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION
89        typedef LFOTriangleIntAbsMath<range_signed> LFOSigned;
90        #elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION
91        typedef LFOTriangleDiHarmonic<range_signed> LFOSigned;
92        #endif
93    
94      /** Gig Voice      /** Gig Voice
95       *       *
96       * Renders a voice for the Gigasampler format.       * Renders a voice for the Gigasampler format.
# Line 71  namespace LinuxSampler { namespace gig { Line 103  namespace LinuxSampler { namespace gig {
103                  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
104                  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
105              };              };
106                
107              // Attributes              // Attributes
108              type_t       Type;         ///< Voice Type              type_t       Type;         ///< Voice Type
109              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 119  namespace LinuxSampler { namespace gig { Line 151  namespace LinuxSampler { namespace gig {
151              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
152              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
153              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
154              EGADSR*                     pEG1;               ///< Envelope Generator 1 (Amplification)              EGADSR                      EG1;                ///< Envelope Generator 1 (Amplification)
155              EGADSR*                     pEG2;               ///< Envelope Generator 2 (Filter cutoff frequency)              EGADSR                      EG2;                ///< Envelope Generator 2 (Filter cutoff frequency)
156              EGDecay*                    pEG3;               ///< Envelope Generator 3 (Pitch)              EGDecay                     EG3;                ///< Envelope Generator 3 (Pitch)
157              Filter                      FilterLeft;              Filter                      FilterLeft;
158              Filter                      FilterRight;              Filter                      FilterRight;
159              midi_ctrl                   VCFCutoffCtrl;              midi_ctrl                   VCFCutoffCtrl;
160              midi_ctrl                   VCFResonanceCtrl;              midi_ctrl                   VCFResonanceCtrl;
             int                         FilterUpdateCounter; ///< Used to update filter parameters all FILTER_UPDATE_PERIOD samples  
161              static const float          FILTER_CUTOFF_COEFF;              static const float          FILTER_CUTOFF_COEFF;
162              static const int            FILTER_UPDATE_MASK;              LFOUnsigned*                pLFO1;               ///< Low Frequency Oscillator 1 (Amplification)
163              VCAManipulator*             pVCAManipulator;              LFOUnsigned*                pLFO2;               ///< Low Frequency Oscillator 2 (Filter cutoff frequency)
164              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)  
165              bool                        bLFO1Enabled;        ///< Should we use the Amplitude LFO for this voice?              bool                        bLFO1Enabled;        ///< Should we use the Amplitude LFO for this voice?
166              bool                        bLFO2Enabled;        ///< Should we use the Filter Cutoff LFO for this voice?              bool                        bLFO2Enabled;        ///< Should we use the Filter Cutoff LFO for this voice?
167              bool                        bLFO3Enabled;        ///< Should we use the Pitch LFO for this voice?              bool                        bLFO3Enabled;        ///< Should we use the Pitch LFO for this voice?
# Line 144  namespace LinuxSampler { namespace gig { Line 171  namespace LinuxSampler { namespace gig {
171          //private:          //private:
172              int                         SynthesisMode;              int                         SynthesisMode;
173    
174    
175                float                       fFinalPitch;
176                float                       fFinalVolume;
177                float                       fFinalCutoff;
178                float                       fFinalResonance;
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 */
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