1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
#import "MGLOpenGLLayer.h"
#import "MGLMapView_Private.h"
@implementation MGLOpenGLLayer {
NSOpenGLContext *_context;
}
- (MGLMapView *)mapView {
return (MGLMapView *)super.view;
}
// - (BOOL)isAsynchronous {
// return YES;
// }
- (BOOL)needsDisplayOnBoundsChange {
return YES;
}
- (CGRect)frame {
return self.view.bounds;
}
- (NSOpenGLContext *)openGLContextForPixelFormat:(NSOpenGLPixelFormat *)pixelFormat {
if (!_context) {
_context = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:nil];
}
return _context;
}
- (NSOpenGLPixelFormat *)openGLPixelFormatForDisplayMask:(uint32_t)mask {
NSOpenGLPixelFormatAttribute pfas[] = {
NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersionLegacy,
NSOpenGLPFAAccelerated,
NSOpenGLPFAClosestPolicy,
NSOpenGLPFAAccumSize, 32,
NSOpenGLPFAColorSize, 24,
NSOpenGLPFAAlphaSize, 8,
NSOpenGLPFADepthSize, 16,
NSOpenGLPFAStencilSize, 8,
NSOpenGLPFAScreenMask, mask,
NSOpenGLPFAAllowOfflineRenderers, // Allows using the integrated GPU
0
};
return [[NSOpenGLPixelFormat alloc] initWithAttributes:pfas];
}
- (BOOL)canDrawInOpenGLContext:(__unused NSOpenGLContext *)context pixelFormat:(__unused NSOpenGLPixelFormat *)pixelFormat forLayerTime:(__unused CFTimeInterval)t displayTime:(__unused const CVTimeStamp *)ts {
return !self.mapView.dormant;
}
- (void)drawInOpenGLContext:(NSOpenGLContext *)context pixelFormat:(NSOpenGLPixelFormat *)pixelFormat forLayerTime:(CFTimeInterval)t displayTime:(const CVTimeStamp *)ts {
[self.mapView renderSync];
[super drawInOpenGLContext:context pixelFormat:pixelFormat forLayerTime:t displayTime:ts];
}
@end
|
