1 /*
2 * mdaPianoProcessor.h
3 * mda-vst3
4 *
5 * Created by Arne Scheffler on 6/14/08.
6 *
7 * mda VST Plug-ins
8 *
9 * Copyright (c) 2008 Paul Kellett
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
14 *
15 */
16
17 #pragma once
18
19 #include "mdaBaseProcessor.h"
20
21 namespace Steinberg {
22 namespace Vst {
23 namespace mda {
24
25 //-----------------------------------------------------------------------------
26 class PianoProcessor : public BaseProcessor
27 {
28 public:
29 PianoProcessor ();
30 ~PianoProcessor ();
31
32 tresult PLUGIN_API initialize (FUnknown* context) SMTG_OVERRIDE;
33 tresult PLUGIN_API terminate () SMTG_OVERRIDE;
34 tresult PLUGIN_API setActive (TBool state) SMTG_OVERRIDE;
35
36 void doProcessing (ProcessData& data) SMTG_OVERRIDE;
37
38 bool hasProgram () const SMTG_OVERRIDE { return true; }
39 Steinberg::uint32 getCurrentProgram () const SMTG_OVERRIDE { return currentProgram; }
40 void setCurrentProgram (Steinberg::uint32 val) SMTG_OVERRIDE;
41 void setCurrentProgramNormalized (ParamValue val) SMTG_OVERRIDE;
42
43 //-----------------------------------------------------------------------------
44 static FUnknown* createInstance (void*) { return (IAudioProcessor*)new PianoProcessor; }
45 static FUID uid;
46 //-----------------------------------------------------------------------------
47
48 enum {
49 EVENTBUFFER=120,
50 EVENTS_DONE=99999999,
51 NPARAMS=12,
52 kNumPrograms = 8,
53 NVOICES=32,
54 SUSTAIN=128,
Profilellvm::FoldingSetTrait55 WAVELEN=586348
56 };
57
58 static float programParams[][NPARAMS];
59
Profilellvm::FoldingSetTrait60 protected:
61 void setParameter (ParamID index, ParamValue newValue, int32 sampleOffset) SMTG_OVERRIDE;
62 void processEvents (IEventList* events) SMTG_OVERRIDE;
63 void noteOn(int32 note, int32 velocity);
64 void recalculate () SMTG_OVERRIDE;
65 void allNotesOff ();
66
67 struct VOICE //voice state
68 {
69 int32 delta; //sample playback
70 int32 frac;
71 int32 pos;
72 int32 end;
73 int32 loop;
74
75 float env; //envelope
76 float dec;
77
78 float f0; //first-order LPF
79 float f1;
80 float ff;
81
82 float outl;
83 float outr;
84 int32 note; //remember what note triggered this
85 };
86
87
88 struct KGRP //keygroup
89 {
90 int32 root; //MIDI root note
91 int32 high; //highest note
92 int32 pos;
93 int32 end;
94 int32 loop;
95 };
96
97 float Fs, iFs;
98
99 int32 notes[EVENTBUFFER + 8]; //list of delta|note|velocity for current block
100
101 ///global internal variables
102 KGRP kgrp[16];
103 VOICE voice[NVOICES];
104 int32 activevoices, poly, cpos;
105 short *waves;
106 int32 cmax;
107 float *comb, cdep, width, trim;
108 int32 size, sustain;
109 float tune, fine, random, stretch;
110 float muff, muffvel, sizevel, velsens, volume;
111
112 int32 eventPos;
113
114 Steinberg::uint32 currentProgram;
115 };
116
117 }}} // namespaces
118