/[svn]/linuxsampler/trunk/src/engines/sf2/SF2SignalUnitRack.h
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Contents of /linuxsampler/trunk/src/engines/sf2/SF2SignalUnitRack.h

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Revision 2205 - (show annotations) (download) (as text)
Mon Jul 11 17:52:01 2011 UTC (12 years, 9 months ago) by iliev
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* Introduced Signal Units and Signal Unit Racks, which hopefully will meet
  the demands of the new engines for flexible signal processing.
* sf2: Initial implementation of vibrato LFO, fixes in modulation EG and
  and volume EG (work in progress)

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2011 Grigor Iliev *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #ifndef __LS_SF2SIGNALUNITRACK_H__
24 #define __LS_SF2SIGNALUNITRACK_H__
25
26 #include "../common/SignalUnitRack.h"
27 #include "../sfz/EGADSR.h"
28 #include "../common/AbstractVoice.h"
29
30 namespace LinuxSampler { namespace sf2 {
31
32 class Voice;
33
34 class EGUnit : public SignalUnitBase<Voice>, public ::LinuxSampler::sfz::EGADSR {
35 public:
36 virtual bool Active() { return active(); }
37 virtual float GetLevel() { return getLevel(); }
38 virtual void EnterReleaseStage();
39 virtual void CancelRelease();
40 };
41
42 class VolEGUnit : public EGUnit {
43 public:
44 virtual void Trigger();
45 virtual void Increment();
46 };
47
48 class ModEGUnit : public EGUnit {
49 public:
50 virtual void Trigger();
51 virtual void Increment();
52 };
53
54 class VibLfoUnit : public SignalUnitBase<Voice>, public LFOSigned {
55 public:
56 VibLfoUnit(): LFOSigned(1200.0f) { }
57 virtual bool Active() { return true; }
58 virtual void Trigger();
59 virtual void Increment();
60 virtual float GetLevel() { return Level; }
61 };
62
63 class EndpointUnit : public EndpointSignalUnitBase<Voice> {
64 public:
65 EndpointUnit() { }
66
67 virtual void Trigger();
68
69 /** The endpoint should be active until the volume EG is active. */
70 virtual bool Active();
71
72 virtual float GetVolume();
73 virtual float GetFilterCutoff();
74 virtual float GetPitch();
75 virtual float GetResonance();
76 };
77
78 class SF2SignalUnitRack : public SignalUnitRackBase<Voice> {
79 private:
80 VolEGUnit suVolEG;
81 ModEGUnit suModEG;
82 VibLfoUnit suVibLfo;
83 EndpointUnit suEndpoint;
84
85
86 public:
87
88 /**
89 * @param Voice The voice to which this rack belongs.
90 */
91 SF2SignalUnitRack(Voice* Voice);
92
93 virtual void Trigger();
94 virtual EndpointSignalUnit* GetEndpointUnit();
95 };
96
97 }} // namespace LinuxSampler::sf2
98
99 #endif /* __LS_SF2SIGNALUNITRACK_H__ */
100

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