1 |
/* |
/* |
2 |
Copyright (C) 2008 Christian Schoenebeck |
Copyright (C) 2008 - 2009 Christian Schoenebeck |
3 |
*/ |
*/ |
4 |
|
|
5 |
#include "VirtualMidiDevice.h" |
#include "VirtualMidiDevice.h" |
8 |
#include "../../common/atomic.h" |
#include "../../common/atomic.h" |
9 |
#include "../../common/RingBuffer.h" |
#include "../../common/RingBuffer.h" |
10 |
|
|
11 |
#define MIDI_KEYS 128 |
#define MIDI_KEYS 128 |
12 |
|
#define MIDI_CONTROLLERS 128 |
13 |
|
|
14 |
// assuming VirtualMidiDevice implementation is only controlled |
// assuming VirtualMidiDevice implementation is only controlled |
15 |
// by mouse (and the user not being Billy the Kid) |
// by mouse (and the user not being Billy the Kid) |
23 |
atomic_t pNoteIsActive[MIDI_KEYS]; // status of each key (either active or inactive) |
atomic_t pNoteIsActive[MIDI_KEYS]; // status of each key (either active or inactive) |
24 |
atomic_t pNoteOnVelocity[MIDI_KEYS]; |
atomic_t pNoteOnVelocity[MIDI_KEYS]; |
25 |
atomic_t pNoteOffVelocity[MIDI_KEYS]; |
atomic_t pNoteOffVelocity[MIDI_KEYS]; |
26 |
|
atomic_t ccsChanged; // whether some controller changed at all |
27 |
|
atomic_t pCCChanged[MIDI_CONTROLLERS]; // which controller(s) changed |
28 |
|
atomic_t pCCValue[MIDI_CONTROLLERS]; // current value of each controller |
29 |
RingBuffer<VirtualMidiDevice::event_t,false> events; |
RingBuffer<VirtualMidiDevice::event_t,false> events; |
30 |
|
|
31 |
private_data_t() : events(MAX_EVENTS, 0) {} |
private_data_t() : events(MAX_EVENTS, 0) {} |
34 |
VirtualMidiDevice::VirtualMidiDevice() : p(new private_data_t) { |
VirtualMidiDevice::VirtualMidiDevice() : p(new private_data_t) { |
35 |
atomic_t zero = ATOMIC_INIT(0); |
atomic_t zero = ATOMIC_INIT(0); |
36 |
atomic_t defaultVelocity = ATOMIC_INIT(127); |
atomic_t defaultVelocity = ATOMIC_INIT(127); |
37 |
|
atomic_t defaultCCValue = ATOMIC_INIT(0); |
38 |
p->notesChanged = zero; |
p->notesChanged = zero; |
39 |
|
p->ccsChanged = zero; |
40 |
for (int i = 0; i < MIDI_KEYS; i++) { |
for (int i = 0; i < MIDI_KEYS; i++) { |
41 |
p->pNoteChanged[i] = zero; |
p->pNoteChanged[i] = zero; |
42 |
p->pNoteIsActive[i] = zero; |
p->pNoteIsActive[i] = zero; |
43 |
p->pNoteOnVelocity[i] = defaultVelocity; |
p->pNoteOnVelocity[i] = defaultVelocity; |
44 |
p->pNoteOffVelocity[i] = defaultVelocity; |
p->pNoteOffVelocity[i] = defaultVelocity; |
45 |
|
p->pCCChanged[i] = zero; |
46 |
|
p->pCCValue[i] = defaultCCValue; |
47 |
} |
} |
48 |
} |
} |
49 |
|
|
66 |
p->events.push(&ev); |
p->events.push(&ev); |
67 |
return true; |
return true; |
68 |
} |
} |
69 |
|
|
70 |
|
bool VirtualMidiDevice::SendCCToSampler(uint8_t Controller, uint8_t Value) { |
71 |
|
if (Controller >= MIDI_CONTROLLERS || Value > 127) return false; |
72 |
|
event_t ev = { EVENT_TYPE_CC, Controller, Value }; |
73 |
|
if (p->events.write_space() <= 0) return false; |
74 |
|
p->events.push(&ev); |
75 |
|
return true; |
76 |
|
} |
77 |
|
|
78 |
bool VirtualMidiDevice::GetMidiEventFromDevice(event_t& Event) { |
bool VirtualMidiDevice::GetMidiEventFromDevice(event_t& Event) { |
79 |
return (p->events.pop(&Event) > 0); |
return (p->events.pop(&Event) > 0); |
84 |
atomic_sub(c, &p->notesChanged ); |
atomic_sub(c, &p->notesChanged ); |
85 |
return c; |
return c; |
86 |
} |
} |
87 |
|
|
88 |
|
bool VirtualMidiDevice::ControllersChanged() { |
89 |
|
int c = atomic_read( &p->ccsChanged ); |
90 |
|
atomic_sub(c, &p->ccsChanged ); |
91 |
|
return c; |
92 |
|
} |
93 |
|
|
94 |
bool VirtualMidiDevice::NoteChanged(uint8_t Key) { |
bool VirtualMidiDevice::NoteChanged(uint8_t Key) { |
95 |
int c = atomic_read( &(p->pNoteChanged)[Key] ); |
int c = atomic_read( &(p->pNoteChanged)[Key] ); |
96 |
atomic_sub(c, &(p->pNoteChanged)[Key] ); |
atomic_sub(c, &(p->pNoteChanged)[Key] ); |
97 |
return c; |
return c; |
98 |
} |
} |
99 |
|
|
100 |
|
bool VirtualMidiDevice::ControllerChanged(uint8_t Controller) { |
101 |
|
int c = atomic_read( &(p->pCCChanged)[Controller] ); |
102 |
|
atomic_sub(c, &(p->pCCChanged)[Controller] ); |
103 |
|
return c; |
104 |
|
} |
105 |
|
|
106 |
bool VirtualMidiDevice::NoteIsActive(uint8_t Key) { |
bool VirtualMidiDevice::NoteIsActive(uint8_t Key) { |
107 |
return atomic_read( &(p->pNoteIsActive)[Key] ); |
return atomic_read( &(p->pNoteIsActive)[Key] ); |
114 |
uint8_t VirtualMidiDevice::NoteOffVelocity(uint8_t Key) { |
uint8_t VirtualMidiDevice::NoteOffVelocity(uint8_t Key) { |
115 |
return atomic_read( &(p->pNoteOffVelocity)[Key] ); |
return atomic_read( &(p->pNoteOffVelocity)[Key] ); |
116 |
} |
} |
117 |
|
|
118 |
|
uint8_t VirtualMidiDevice::ControllerValue(uint8_t Controller) { |
119 |
|
return atomic_read( &(p->pCCValue)[Controller] ); |
120 |
|
} |
121 |
|
|
122 |
void VirtualMidiDevice::SendNoteOnToDevice(uint8_t Key, uint8_t Velocity) { |
void VirtualMidiDevice::SendNoteOnToDevice(uint8_t Key, uint8_t Velocity) { |
123 |
if (Key >= MIDI_KEYS) return; |
if (Key >= MIDI_KEYS) return; |
134 |
atomic_inc( &(p->pNoteChanged)[Key] ); |
atomic_inc( &(p->pNoteChanged)[Key] ); |
135 |
atomic_inc( &p->notesChanged ); |
atomic_inc( &p->notesChanged ); |
136 |
} |
} |
137 |
|
|
138 |
|
void VirtualMidiDevice::SendCCToDevice(uint8_t Controller, uint8_t Value) { |
139 |
|
if (Controller >= MIDI_CONTROLLERS) return; |
140 |
|
atomic_set( &(p->pCCValue)[Controller], Value ); |
141 |
|
atomic_inc( &(p->pCCChanged)[Controller] ); |
142 |
|
atomic_inc( &p->ccsChanged ); |
143 |
|
} |
144 |
|
|
145 |
} // namespace LinuxSampler |
} // namespace LinuxSampler |