77 lines
1.5 KiB
Objective-C
77 lines
1.5 KiB
Objective-C
//
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// TDFPSMonitor.m
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// SSAPMSDK
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//
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// Created by wwango on 2021/9/7.
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//
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#import "TDFPSMonitor.h"
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#import <QuartzCore/CADisplayLink.h>
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#import "TDWeakProxy.h"
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@interface TDFPSMonitor () {
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CADisplayLink *_link;
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NSUInteger _count;
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NSTimeInterval _lastTime;
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int _thinkingdata_fps;
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}
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@end
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@implementation TDFPSMonitor
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- (void)setEnable:(BOOL)enable {
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_enable = enable;
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if (_enable) {
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[self startDisplay];
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} else {
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[self stopDisplay];
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}
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}
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- (NSNumber *)getPFS {
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return [NSNumber numberWithInt:[NSString stringWithFormat:@"%d", _thinkingdata_fps].intValue];
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}
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- (void)dealloc {
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if (_link) {
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[_link invalidate];
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}
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}
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- (void)startDisplay {
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if (_link) return;
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_thinkingdata_fps = 60;
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_link = [CADisplayLink displayLinkWithTarget:[TDWeakProxy proxyWithTarget:self] selector:@selector(tick:)];
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// _link.preferredFrameRateRange = CAFrameRateRangeMake(60, 120, 120);
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[_link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
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}
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- (void)stopDisplay {
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if (_link) {
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[_link invalidate];
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_link= nil;
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}
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}
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- (void)tick:(CADisplayLink *)link {
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if (_lastTime == 0) {
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_lastTime = link.timestamp;
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return;
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}
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_count++;
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NSTimeInterval delta = link.timestamp - _lastTime;
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if (delta < 1.0) return;
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_lastTime = link.timestamp;
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_thinkingdata_fps = _count / delta;
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_count = 0;
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// NSLog(@"@@@@@FPS:%i", _thinkingdata_fps);
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}
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@end
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