1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
//-------------------------------------------------------------------------------------------------------
// VST Plug-Ins SDK
// Version 2.4 $Date: 2006/11/13 09:08:27 $
//
// Category : VST 2.x SDK Samples
// Filename : vstxsynth.h
// Created by : Steinberg Media Technologies
// Description : Example VstXSynth
//
// A simple 2 oscillators test 'synth',
// Each oscillator has waveform, frequency, and volume
//
// *very* basic monophonic 'synth' example. you should not attempt to use this
// example 'algorithm' to start a serious virtual instrument; it is intended to demonstrate
// how VstEvents ('MIDI') are handled, but not how a virtual analog synth works.
// there are numerous much better examples on the web which show how to deal with
// bandlimited waveforms etc.
//
// � 2006, Steinberg Media Technologies, All Rights Reserved
//-------------------------------------------------------------------------------------------------------
#ifndef __vstxsynth__
#define __vstxsynth__
#include "public.sdk/source/vst2.x/audioeffectx.h"
//------------------------------------------------------------------------------------------
enum
{
// Global
kNumPrograms = 128,
kNumOutputs = 2,
// Parameters Tags
kWaveform1 = 0,
kFreq1,
kVolume1,
kWaveform2,
kFreq2,
kVolume2,
kVolume,
kNumParams
};
//------------------------------------------------------------------------------------------
// VstXSynthProgram
//------------------------------------------------------------------------------------------
class VstXSynthProgram
{
friend class VstXSynth;
public:
VstXSynthProgram ();
~VstXSynthProgram () {}
private:
float fWaveform1;
float fFreq1;
float fVolume1;
float fWaveform2;
float fFreq2;
float fVolume2;
float fVolume;
char name[kVstMaxProgNameLen+1];
};
//------------------------------------------------------------------------------------------
// VstXSynth
//------------------------------------------------------------------------------------------
class VstXSynth : public AudioEffectX
{
public:
VstXSynth (audioMasterCallback audioMaster);
~VstXSynth ();
virtual void processReplacing (float** inputs, float** outputs, VstInt32 sampleFrames);
virtual VstInt32 processEvents (VstEvents* events);
virtual void setProgram (VstInt32 program);
virtual void setProgramName (char* name);
virtual void getProgramName (char* name);
virtual bool getProgramNameIndexed (VstInt32 category, VstInt32 index, char* text);
virtual void setParameter (VstInt32 index, float value);
virtual float getParameter (VstInt32 index);
virtual void getParameterLabel (VstInt32 index, char* label);
virtual void getParameterDisplay (VstInt32 index, char* text);
virtual void getParameterName (VstInt32 index, char* text);
virtual void setSampleRate (float sampleRate);
virtual void setBlockSize (VstInt32 blockSize);
virtual bool getOutputProperties (VstInt32 index, VstPinProperties* properties);
virtual bool getEffectName (char* name);
virtual bool getVendorString (char* text);
virtual bool getProductString (char* text);
virtual VstInt32 getVendorVersion ();
virtual VstInt32 canDo (char* text);
virtual VstInt32 getNumMidiInputChannels ();
virtual VstInt32 getNumMidiOutputChannels ();
virtual VstInt32 getMidiProgramName (VstInt32 channel, MidiProgramName* midiProgramName);
virtual VstInt32 getCurrentMidiProgram (VstInt32 channel, MidiProgramName* currentProgram);
virtual VstInt32 getMidiProgramCategory (VstInt32 channel, MidiProgramCategory* category);
virtual bool hasMidiProgramsChanged (VstInt32 channel);
virtual bool getMidiKeyName (VstInt32 channel, MidiKeyName* keyName);
private:
float fWaveform1;
float fFreq1;
float fVolume1;
float fWaveform2;
float fFreq2;
float fVolume2;
float fVolume;
float fPhase1, fPhase2;
float fScaler;
VstXSynthProgram* programs;
VstInt32 channelPrograms[16];
VstInt32 currentNote;
VstInt32 currentVelocity;
VstInt32 currentDelta;
bool noteIsOn;
void initProcess ();
void noteOn (VstInt32 note, VstInt32 velocity, VstInt32 delta);
void noteOff ();
void fillProgram (VstInt32 channel, VstInt32 prg, MidiProgramName* mpn);
};
#endif
|
