/[svn]/linuxsampler/trunk/src/engines/sf2/Voice.h
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Contents of /linuxsampler/trunk/src/engines/sf2/Voice.h

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Revision 3444 - (show annotations) (download) (as text)
Sun Dec 23 19:32:11 2018 UTC (7 months, 3 weeks ago) by schoenebeck
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File size: 7590 byte(s)
* Only play release trigger samples on sustain pedal up if this behaviour
  was explicitly requested by the instrument (otherwise only on note-off).
* Bumped version (2.1.0.svn2).

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 * Copyright (C) 2009 - 2013 Christian Schoenebeck and Grigor Iliev *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details. *
18 * *
19 * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the Free Software *
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22 * MA 02111-1307 USA *
23 ***************************************************************************/
24
25 #ifndef __LS_SF2_VOICE_H__
26 #define __LS_SF2_VOICE_H__
27
28 #include "../../common/global_private.h"
29
30 #include "../../common/RTMath.h"
31 #include "../../common/Pool.h"
32 #include "../../drivers/audio/AudioOutputDevice.h"
33 #include "Stream.h"
34 #include "DiskThread.h"
35 #include "../gig/EGADSR.h"
36 #include "../gig/Filter.h"
37 #include "../common/VoiceBase.h"
38 #include "../gig/SynthesisParam.h"
39 #include "../sfz/EGADSR.h"
40 #include "SF2SignalUnitRack.h"
41 #include "EngineChannel.h"
42
43 namespace LinuxSampler { namespace sf2 {
44 class Engine;
45 class EngineChannel;
46
47 /** SoundFont Voice
48 *
49 * Renders a voice for the SoundFont format.
50 */
51 class Voice : public LinuxSampler::VoiceBase<EngineChannel, ::sf2::Region, ::sf2::Sample, DiskThread> {
52 public:
53 Voice();
54 virtual ~Voice();
55 void SetOutput(AudioOutputDevice* pAudioOutputDevice);
56 void SetEngine(LinuxSampler::Engine* pEngine);
57 void CalculateFadeOutCoeff(float FadeOutTime, float SampleRate);
58 virtual release_trigger_t GetReleaseTriggerFlags() OVERRIDE;
59
60 protected:
61 virtual SampleInfo GetSampleInfo() OVERRIDE;
62 virtual RegionInfo GetRegionInfo() OVERRIDE;
63 virtual InstrumentInfo GetInstrumentInfo() OVERRIDE;
64 virtual double CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) OVERRIDE;
65 virtual AbstractEngine* GetEngine() OVERRIDE { return (AbstractEngine*)pEngine; }
66 virtual double GetEG1ControllerValue(uint8_t MIDIKeyVelocity) OVERRIDE;
67 virtual EGInfo CalculateEG1ControllerInfluence(double eg1ControllerValue) OVERRIDE;
68 virtual void TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) OVERRIDE { }
69 virtual double GetEG2ControllerValue(uint8_t MIDIKeyVelocity) OVERRIDE;
70 virtual EGInfo CalculateEG2ControllerInfluence(double eg2ControllerValue) OVERRIDE;
71 virtual void TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) OVERRIDE { }
72 virtual void InitLFO1() OVERRIDE { }
73 virtual void InitLFO2() OVERRIDE { }
74 virtual void InitLFO3() OVERRIDE { }
75 virtual float CalculateCutoffBase(uint8_t MIDIKeyVelocity) OVERRIDE;
76 virtual float CalculateFinalCutoff(float cutoffBase) OVERRIDE;
77 virtual uint8_t GetVCFCutoffCtrl() OVERRIDE;
78 virtual uint8_t GetVCFResonanceCtrl() OVERRIDE;
79 virtual void ProcessCCEvent(RTList<Event>::Iterator& itEvent) OVERRIDE;
80 virtual void ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) OVERRIDE;
81 virtual void ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) OVERRIDE;
82 virtual void ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) OVERRIDE;
83 virtual double GetVelocityAttenuation(uint8_t MIDIKeyVelocity) OVERRIDE;
84 virtual double GetVelocityRelease(uint8_t MIDIKeyVelocity) OVERRIDE;
85 virtual double GetSampleAttenuation() OVERRIDE;
86 virtual void ProcessGroupEvent(RTList<Event>::Iterator& itEvent) OVERRIDE;
87 virtual void AboutToTrigger() OVERRIDE;
88 virtual int CalculatePan(uint8_t pan) OVERRIDE;
89
90 private:
91 ::sf2::Region* pPresetRegion;
92 SF2SignalUnitRack SignalRack;
93
94 public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release
95 // Attributes
96 Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists.
97 //uint LoopCyclesLeft; ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed
98
99 // Static Methods
100 static float CalculateFilterCutoffCoeff();
101
102 // Methods
103 void ProcessEvents(uint Samples);
104 void processCrossFadeEvent(RTList<Event>::Iterator& itEvent);
105
106 EngineChannel* GetSf2EngineChannel();
107
108 friend class EGUnit;
109 friend class VolEGUnit;
110 friend class ModEGUnit;
111 friend class ModLfoUnit;
112 friend class VibLfoUnit;
113 friend class EndpointUnit;
114 friend class SF2SignalUnitRack;
115
116 protected:
117 virtual uint8_t CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) OVERRIDE {
118 /*uint8_t c = std::max(CrossfadeControllerValue, pRegion->AttenuationControllerThreshold);
119 c = (!pRegion->Crossfade.out_end) ? c // 0,0,0,0 means no crossfade defined
120 : (c < pRegion->Crossfade.in_end) ?
121 ((c <= pRegion->Crossfade.in_start) ? 0
122 : 127 * (c - pRegion->Crossfade.in_start) / (pRegion->Crossfade.in_end - pRegion->Crossfade.in_start))
123 : (c <= pRegion->Crossfade.out_start) ? 127
124 : (c < pRegion->Crossfade.out_end) ? 127 * (pRegion->Crossfade.out_end - c) / (pRegion->Crossfade.out_end - pRegion->Crossfade.out_start)
125 : 0;
126 return pRegion->InvertAttenuationController ? 127 - c : c;*/ // TODO: ^^^
127 return 0;
128 }
129 };
130
131 }} // namespace LinuxSampler::sf2
132
133 #endif // __LS_SF2_VOICE_H__

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