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Ensures new displayLinkDelegates get a nudge with the initial display link.

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This commit is contained in:
Thomas Harte 2020-02-04 23:08:25 -05:00
parent e7410b8ed8
commit e1cbad0b6d
1 changed files with 19 additions and 0 deletions
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19
OSBindings/Mac/Clock Signal/Views/CSOpenGLView.m
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@ -22,6 +22,8 @@
NSTrackingArea *_mouseTrackingArea; NSTrackingArea *_mouseTrackingArea;
NSTimer *_mouseHideTimer; NSTimer *_mouseHideTimer;
BOOL _mouseIsCaptured; BOOL _mouseIsCaptured;
id<CSOpenGLViewDisplayLinkDelegate> _displayLinkDelegate;
} }
- (void)prepareOpenGL { - (void)prepareOpenGL {
@ -70,6 +72,23 @@
CVDisplayLinkStart(_displayLink); CVDisplayLinkStart(_displayLink);
} }
- (void)setDisplayLinkDelegate:(id<CSOpenGLViewDisplayLinkDelegate>)displayLinkDelegate {
@synchronized(self) {
_displayLinkDelegate = displayLinkDelegate;
// Seed with the current _displayLink, if any.
if(_displayLink) {
[displayLinkDelegate openGLView:self didUpdateDisplayLink:_displayLink];
}
}
}
- (id<CSOpenGLViewDisplayLinkDelegate>)displayLinkDelegate {
@synchronized(self) {
return _displayLinkDelegate;
}
}
static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeStamp *now, const CVTimeStamp *outputTime, CVOptionFlags flagsIn, CVOptionFlags *flagsOut, void *displayLinkContext) { static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeStamp *now, const CVTimeStamp *outputTime, CVOptionFlags flagsIn, CVOptionFlags *flagsOut, void *displayLinkContext) {
CSOpenGLView *const view = (__bridge CSOpenGLView *)displayLinkContext; CSOpenGLView *const view = (__bridge CSOpenGLView *)displayLinkContext;