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

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Revision 2203 - (show annotations) (download) (as text)
Sat Jul 9 16:44:27 2011 UTC (6 years, 11 months ago) by persson
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* sf2 engine: fine-tuned amplitude EG (by switching from gig to sfz EG)
* sfz engine: added support for EG hold (ampeg_hold)
* Mac OS X: made it possible to specify plugin installation dir to
  configure

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005-2011 Christian Schoenebeck *
7 * *
8 * 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 *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #ifndef __LS_VOICE_H__
25 #define __LS_VOICE_H__
26
27 #include "Event.h"
28 #include "../gig/Filter.h"
29 #include "../../common/Pool.h"
30
31 #include <gig.h> // TODO: remove gig dependency
32
33 namespace LinuxSampler {
34
35 class Voice {
36 public:
37 enum playback_state_t {
38 playback_state_end = 0,
39 playback_state_init = 1,
40 playback_state_ram = 2,
41 playback_state_disk = 3
42 };
43
44 // Type bits. Mostly mutual exclusive, but a voice may both be of one shot type and require a release trigger at the same time.
45 enum type_t {
46 type_normal = 0,
47 type_release_trigger_required = 1 << 1, ///< If the key of this voice will be released, it causes a release triggered voice to be spawned
48 type_release_trigger = 1 << 2, ///< Release triggered voice which cannot be killed by releasing its key
49 type_one_shot = 1 << 3, ///< Voice should not be released by note off
50 type_controller_triggered = 1 << 4 ///< Voice is triggered by MIDI CC instead of a note on
51 };
52
53 struct PitchInfo {
54 float PitchBase; ///< Basic pitch depth, stays the same for the whole life time of the voice
55 float PitchBend; ///< Current pitch value of the pitchbend wheel
56 float PitchBendRange; ///< The pitch range of the pitchbend wheel, value is in cents / 8192
57 };
58
59 struct EGInfo {
60 double Attack;
61 double Decay;
62 double Release;
63 };
64
65 struct SampleInfo {
66 uint SampleRate;
67 uint ChannelCount;
68 uint FrameSize;
69 uint TotalFrameCount;
70 uint BitDepth;
71 bool HasLoops;
72 uint LoopStart;
73 uint LoopLength;
74 uint LoopPlayCount; ///< Number of times the loop should be played (a value of 0 = infinite).
75 bool Unpitched; ///< sound which is not characterized by a perceived frequency
76 };
77
78 struct RegionInfo {
79 uint8_t UnityNote; ///< The MIDI key number of the recorded pitch of the sample
80 int16_t FineTune;
81 int Pan; ///< Panorama / Balance (-64..0..63 <-> left..middle..right)
82 uint SampleStartOffset; ///< Number of samples the sample start should be moved
83
84 double EG2PreAttack; ///< Preattack value of the filter cutoff EG (in permilles)
85 double EG2Attack; ///< Attack time of the filter cutoff EG (in seconds)
86 double EG2Decay1; ///< Decay time of the filter cutoff EG (in seconds)
87 double EG2Decay2; ///< Only if (EG2InfiniteSustain == false): 2nd decay stage time of the filter cutoff EG (in seconds)
88 double EG2Sustain; ///< Sustain value of the filter cutoff EG (in permilles)
89 bool EG2InfiniteSustain; ///< If true, instead of going into Decay2 phase, Decay1 level will be hold until note will be released.
90 double EG2Release; ///< Release time of the filter cutoff EG (in seconds)
91
92 double EG3Attack; ///< Attack time of the sample pitch EG (in seconds)
93 int EG3Depth; ///< Depth of the sample pitch EG (-1200 - +1200)
94 double ReleaseTriggerDecay; ///< How much release sample volume depends on note length. Release sample amplitude is multiplied with (1 - ReleaseTriggerDecay * note length).
95
96 bool VCFEnabled; ///< If filter should be used.
97 Filter::vcf_type_t VCFType; ///< Defines the general filter characteristic (lowpass, highpass, bandpass, etc.).
98 uint8_t VCFResonance; ///< Firm internal filter resonance weight.
99 };
100
101 struct InstrumentInfo {
102 int FineTune; // in cents
103 uint PitchbendRange; ///< Number of semitones pitchbend controller can pitch
104 };
105
106 /// Reflects a MIDI controller
107 struct midi_ctrl {
108 uint8_t controller; ///< MIDI control change controller number
109 uint8_t value; ///< Current MIDI controller value
110 float fvalue; ///< Transformed / effective value (e.g. volume level or filter cutoff frequency)
111 };
112
113 Voice() { }
114 virtual ~Voice() { }
115 };
116
117 // |= operator for the type_t enum
118 inline Voice::type_t operator|=(Voice::type_t& lhs, Voice::type_t rhs) {
119 return lhs = static_cast<Voice::type_t>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs));
120 }
121
122 } // namespace LinuxSampler
123
124 #endif /* __LS_VOICE_H__ */

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