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

Contents of /linuxsampler/trunk/src/engines/common/Voice.h

Parent Directory Parent Directory | Revision Log Revision Log

Revision 2175 - (show annotations) (download) (as text)
Mon Apr 25 08:12:36 2011 UTC (13 years ago) by persson
File MIME type: text/x-c++hdr
File size: 7461 byte(s) 
* sfz engine: implemeted filters. Filter types: lowpass, bandpass,
  bandreject and highpass. 1, 2, 4 and 6 pole filters. Opcodes:
  fil_type, cutoff, resonance, fil_veltrack, fil_keytrack,
  fil_keycenter, cutoff_cc, cutoff_chanaft.
* sfz engine: bugfix: zero ampeg_sustain didn't work
* gig engine: bugfix: pitch LFO controller "internal+aftertouch" was broken
* gig engine: bugfix: filter keyboard tracking was broken
* gig engine: filter performance fix (an unnecessary copy was made of
  the filter parameters in each sub fragment)
* ASIO driver: fixes for newer gcc versions (fix from PortAudio)
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 EG1PreAttack; ///< Preattack value of the sample amplitude EG (in permilles)
85 double EG1Attack; ///< Attack time of the sample amplitude EG (in seconds)
86 double EG1Hold; ///< If true, Decay1 stage should be postponed until the sample reached the sample loop start
87 double EG1Decay1; ///< Decay time of the sample amplitude EG (in seconds)
88 double EG1Decay2; ///< Only if (EG1InfiniteSustain == false): 2nd decay stage time of the sample amplitude EG (in seconds)
89 double EG1Sustain; ///< Sustain value of the sample amplitude EG (in permilles)
90 bool EG1InfiniteSustain; ///< If true, instead of going into Decay2 phase, Decay1 level will be hold until note will be released.
91 double EG1Release; ///< Release time of the sample amplitude EG (in seconds)
92
93 double EG2PreAttack; ///< Preattack value of the filter cutoff EG (in permilles)
94 double EG2Attack; ///< Attack time of the filter cutoff EG (in seconds)
95 double EG2Decay1; ///< Decay time of the filter cutoff EG (in seconds)
96 double EG2Decay2; ///< Only if (EG2InfiniteSustain == false): 2nd decay stage time of the filter cutoff EG (in seconds)
97 double EG2Sustain; ///< Sustain value of the filter cutoff EG (in permilles)
98 bool EG2InfiniteSustain; ///< If true, instead of going into Decay2 phase, Decay1 level will be hold until note will be released.
99 double EG2Release; ///< Release time of the filter cutoff EG (in seconds)
100
101 double EG3Attack; ///< Attack time of the sample pitch EG (in seconds)
102 int EG3Depth; ///< Depth of the sample pitch EG (-1200 - +1200)
103 double ReleaseTriggerDecay; ///< How much release sample volume depends on note length. Release sample amplitude is multiplied with (1 - ReleaseTriggerDecay * note length).
104
105 bool VCFEnabled; ///< If filter should be used.
106 Filter::vcf_type_t VCFType; ///< Defines the general filter characteristic (lowpass, highpass, bandpass, etc.).
107 uint8_t VCFResonance; ///< Firm internal filter resonance weight.
108 };
109
110 struct InstrumentInfo {
111 int FineTune; // in cents
112 uint PitchbendRange; ///< Number of semitones pitchbend controller can pitch
113 };
114
115 /// Reflects a MIDI controller
116 struct midi_ctrl {
117 uint8_t controller; ///< MIDI control change controller number
118 uint8_t value; ///< Current MIDI controller value
119 float fvalue; ///< Transformed / effective value (e.g. volume level or filter cutoff frequency)
120 };
121
122 Voice() { }
123 virtual ~Voice() { }
124 };
125
126 // |= operator for the type_t enum
127 inline Voice::type_t operator|=(Voice::type_t& lhs, Voice::type_t rhs) {
128 return lhs = static_cast<Voice::type_t>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs));
129 }
130
131 } // namespace LinuxSampler
132
133 #endif /* __LS_VOICE_H__ */
  ViewVC Help
Powered by ViewVC