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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/sdk/objc/components/renderer/opengl/RTCDisplayLinkTimer.m | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/objc/components/renderer/opengl/RTCDisplayLinkTimer.m b/third_party/libwebrtc/sdk/objc/components/renderer/opengl/RTCDisplayLinkTimer.m new file mode 100644 index 0000000000..906bb898d6 --- /dev/null +++ b/third_party/libwebrtc/sdk/objc/components/renderer/opengl/RTCDisplayLinkTimer.m @@ -0,0 +1,59 @@ +/* + * Copyright 2018 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#import "RTCDisplayLinkTimer.h" + +#import <UIKit/UIKit.h> + +@implementation RTCDisplayLinkTimer { + CADisplayLink *_displayLink; + void (^_timerHandler)(void); +} + +- (instancetype)initWithTimerHandler:(void (^)(void))timerHandler { + NSParameterAssert(timerHandler); + if (self = [super init]) { + _timerHandler = timerHandler; + _displayLink = + [CADisplayLink displayLinkWithTarget:self + selector:@selector(displayLinkDidFire:)]; + _displayLink.paused = YES; +#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_10_0 + _displayLink.preferredFramesPerSecond = 30; +#else + [_displayLink setFrameInterval:2]; +#endif + [_displayLink addToRunLoop:[NSRunLoop currentRunLoop] + forMode:NSRunLoopCommonModes]; + } + return self; +} + +- (void)dealloc { + [self invalidate]; +} + +- (BOOL)isPaused { + return _displayLink.paused; +} + +- (void)setIsPaused:(BOOL)isPaused { + _displayLink.paused = isPaused; +} + +- (void)invalidate { + [_displayLink invalidate]; +} + +- (void)displayLinkDidFire:(CADisplayLink *)displayLink { + _timerHandler(); +} + +@end |