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

Annotation of /linuxsampler/trunk/src/engines/sfz/Voice.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 2021 - (hide annotations) (download) (as text)
Fri Oct 30 16:36:20 2009 UTC (14 years, 5 months ago) by iliev
File MIME type: text/x-c++hdr
File size: 5956 byte(s)
* sfz engine: loop support
* sf2 engine: 24bit support
* sf2 engine: loop support
* sf2 engine: instrument unloading

1 iliev 2012 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5     * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 iliev 2015 * Copyright (C) 2005 - 2009 Christian Schoenebeck *
7     * Copyright (C) 2009 Grigor Iliev *
8 iliev 2012 * *
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_SFZ_VOICE_H__
26     #define __LS_SFZ_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 "DiskThread.h"
34     #include "../gig/Filter.h"
35     #include "../common/VoiceBase.h"
36     #include "../gig/SynthesisParam.h"
37    
38     namespace LinuxSampler { namespace sfz {
39     class Engine;
40     class EngineChannel;
41    
42 iliev 2015 /** SoundFont Voice
43 iliev 2012 *
44 iliev 2015 * Renders a voice for the SoundFont format.
45 iliev 2012 */
46 iliev 2021 class Voice : public LinuxSampler::VoiceBase<EngineChannel, ::sfz::Region, Sample, DiskThread> {
47 iliev 2012 public:
48     Voice();
49     virtual ~Voice();
50     void SetOutput(AudioOutputDevice* pAudioOutputDevice);
51     void SetEngine(LinuxSampler::Engine* pEngine);
52    
53 iliev 2015 protected:
54     virtual SampleInfo GetSampleInfo();
55     virtual RegionInfo GetRegionInfo();
56     virtual InstrumentInfo GetInstrumentInfo();
57     virtual double CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity);
58     virtual AbstractEngine* GetEngine() { return (AbstractEngine*)pEngine; }
59     virtual double GetEG1ControllerValue(uint8_t MIDIKeyVelocity);
60     virtual EGInfo CalculateEG1ControllerInfluence(double eg1ControllerValue);
61     virtual double GetEG2ControllerValue(uint8_t MIDIKeyVelocity);
62     virtual EGInfo CalculateEG2ControllerInfluence(double eg2ControllerValue);
63     virtual void InitLFO1();
64     virtual void InitLFO2();
65     virtual void InitLFO3();
66     virtual float CalculateCutoffBase(uint8_t MIDIKeyVelocity);
67     virtual float CalculateFinalCutoff(float cutoffBase);
68     virtual uint8_t GetVCFCutoffCtrl();
69     virtual uint8_t GetVCFResonanceCtrl();
70     virtual void ProcessCCEvent(RTList<Event>::Iterator& itEvent);
71     virtual void ProcessCutoffEvent(RTList<Event>::Iterator& itEvent);
72     virtual double GetVelocityAttenuation(uint8_t MIDIKeyVelocity);
73     virtual double GetVelocityRelease(uint8_t MIDIKeyVelocity);
74     virtual double GetSampleAttenuation();
75    
76     private:
77     public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release
78 iliev 2012 // Attributes
79     Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists.
80     //uint LoopCyclesLeft; ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed
81    
82     // Static Methods
83     static float CalculateFilterCutoffCoeff();
84    
85     // Methods
86     void ProcessEvents(uint Samples);
87     void processCrossFadeEvent(RTList<Event>::Iterator& itEvent);
88    
89 iliev 2015 EngineChannel* GetSfzEngineChannel();
90    
91     protected:
92     virtual uint8_t CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) {
93     /*uint8_t c = std::max(CrossfadeControllerValue, pRegion->AttenuationControllerThreshold);
94     c = (!pRegion->Crossfade.out_end) ? c // 0,0,0,0 means no crossfade defined
95     : (c < pRegion->Crossfade.in_end) ?
96     ((c <= pRegion->Crossfade.in_start) ? 0
97     : 127 * (c - pRegion->Crossfade.in_start) / (pRegion->Crossfade.in_end - pRegion->Crossfade.in_start))
98     : (c <= pRegion->Crossfade.out_start) ? 127
99     : (c < pRegion->Crossfade.out_end) ? 127 * (pRegion->Crossfade.out_end - c) / (pRegion->Crossfade.out_end - pRegion->Crossfade.out_start)
100     : 0;
101     return pRegion->InvertAttenuationController ? 127 - c : c;*/ // TODO: ^^^
102     return 0;
103 iliev 2012 }
104     };
105    
106     }} // namespace LinuxSampler::sfz
107    
108     #endif // __LS_SFZ_VOICE_H__

  ViewVC Help
Powered by ViewVC