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Fix PWM performence issue

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This commit is contained in:
Lior Halphon 2020-04-29 19:53:47 +03:00
parent 5c9d50e25f
commit 66112af37e
1 changed files with 6 additions and 5 deletions
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11
JoyKit/JOYController.m
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@ -115,6 +115,7 @@ typedef struct __attribute__((packed)) {
volatile double _rumblePWMRatio;
bool _physicallyConnected;
bool _logicallyConnected;
bool _rumblePWMThreadRunning;
}
- (instancetype)initWithDevice:(IOHIDDeviceRef) device
@ -609,7 +610,7 @@ typedef struct __attribute__((packed)) {
[NSThread sleepForTimeInterval:(1 - _rumblePWMRatio) / 10];
}
[_rumblePWMThreadLock lock];
[_rumblePWMThreadLock signal];
_rumblePWMThreadRunning = false;
[_rumblePWMThreadLock unlock];
}
@ -657,23 +658,23 @@ typedef struct __attribute__((packed)) {
}
else {
if (_rumbleElement.max == 1 && _rumbleElement.min == 0) {
if (_rumblePWMRatio == 0) { // PWM thread not running, start it.
[_rumblePWMThreadLock lock];
if (!_rumblePWMThreadRunning) { // PWM thread not running, start it.
if (amp != 0) {
_rumblePWMRatio = amp;
_rumblePWMThreadRunning = true;
[self performSelectorInBackground:@selector(pwmThread) withObject:nil];
}
}
else {
if (amp == 0) { // Thread is running, signal it to stop
[_rumblePWMThreadLock lock];
_rumblePWMRatio = 0;
[_rumblePWMThreadLock wait];
[_rumblePWMThreadLock unlock];
}
else {
_rumblePWMRatio = amp;
}
}
[_rumblePWMThreadLock unlock];
}
else {
[_rumbleElement setValue:amp * (_rumbleElement.max - _rumbleElement.min) + _rumbleElement.min];