WIP: view annotation benchmarkupstream/fb-bench-view-annotations-12895

10 files changed, 224 insertions, 31 deletions

diff --git a/platform/ios/app/MBXViewController.m b/platform/ios/app/MBXViewController.m
index 02652b5490..ddbb96493b 100644
--- a/platform/ios/app/MBXViewController.m
+++ b/platform/ios/app/MBXViewController.m
@@ -1562,7 +1562,7 @@ CLLocationCoordinate2D randomWorldCoordinate() {
     [annotations removeObjectAtIndex:0];
     MGLMapCamera *camera = [MGLMapCamera cameraLookingAtCenterCoordinate:nextAnnotation.coordinate
                                                             fromDistance:10
-                                                                   pitch:arc4random_uniform(60)
+                                                                   pitch:0//arc4random_uniform(60)
                                                                  heading:arc4random_uniform(360)];
     __weak MBXViewController *weakSelf = self;
     [self.mapView flyToCamera:camera completionHandler:^{
diff --git a/platform/ios/benchmark/MBXAnnotationViewBenchViewController.h b/platform/ios/benchmark/MBXAnnotationViewBenchViewController.h
new file mode 100644
index 0000000000..1368260bef
--- /dev/null
+++ b/platform/ios/benchmark/MBXAnnotationViewBenchViewController.h
@@ -0,0 +1,13 @@
+//
+//  MBXAnnotationViewBenchViewController.h
+//  bench
+//
+//  Created by Jason Wray on 4/5/18.
+//  Copyright © 2018 Mapbox. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface MBXAnnotationViewBenchViewController : UIViewController
+
+@end
diff --git a/platform/ios/benchmark/MBXAnnotationViewBenchViewController.mm b/platform/ios/benchmark/MBXAnnotationViewBenchViewController.mm
new file mode 100644
index 0000000000..238de3b8f7
--- /dev/null
+++ b/platform/ios/benchmark/MBXAnnotationViewBenchViewController.mm
@@ -0,0 +1,153 @@
+#import "MBXAnnotationViewBenchViewController.h"
+
+#import <Mapbox/Mapbox.h>
+#import "MGLMapView_Private.h"
+
+#include "locations.hpp"
+
+#include <chrono>
+
+@interface CustomAnnotationView : MGLAnnotationView
+@end
+
+@implementation CustomAnnotationView
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+
+    // Force the annotation view to maintain a constant size when the map is tilted.
+    self.scalesWithViewingDistance = YES;
+
+    // Use CALayer’s corner radius to turn this view into a circle.
+    self.layer.cornerRadius = self.frame.size.width / 2;
+    self.layer.borderWidth = 2;
+    self.layer.borderColor = [UIColor whiteColor].CGColor;
+}
+
+@end
+
+
+@interface MBXAnnotationViewBenchViewController () <MGLMapViewDelegate>
+
+@property (nonatomic) MGLMapView *mapView;
+
+@end
+
+@implementation MBXAnnotationViewBenchViewController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+
+    self.mapView = [[MGLMapView alloc] initWithFrame:self.view.bounds styleURL:[NSURL URLWithString:@"asset://styles/empty.json"]];
+    self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
+    self.mapView.delegate = self;
+    self.mapView.userInteractionEnabled = NO;
+
+    [self.view addSubview:self.mapView];
+}
+
+- (void)mapViewDidFinishLoadingMap:(MGLMapView *)mapView {
+    [self fillMapWithAnnotations];
+}
+
+- (void)mapView:(MGLMapView *)mapView didAddAnnotationViews:(NSArray<MGLAnnotationView *> *)annotationViews {
+    NSLog(@"Added %lu annotation views", (unsigned long)annotationViews.count);
+    [self startBenchmarkIteration];
+}
+
+- (void)fillMapWithAnnotations {
+    NSMutableArray *annotations = [NSMutableArray array];
+
+    for (NSInteger latitude = -89; latitude <= 90; latitude += 10)
+    {
+        for (NSInteger longitude = -180; longitude <= 180; longitude += 2)
+        {
+            //if (annotations.count >= 3000) break;
+
+            MGLPointAnnotation *annotation = [[MGLPointAnnotation alloc] init];
+            annotation.coordinate = CLLocationCoordinate2DMake(latitude, longitude);
+            [annotations addObject:annotation];
+        }
+    }
+
+    [self.mapView addAnnotations:annotations];
+}
+
+- (MGLAnnotationView *)mapView:(MGLMapView *)mapView viewForAnnotation:(id<MGLAnnotation>)annotation {
+    // Use the point annotation’s longitude value (as a string) as the reuse identifier for its view.
+    NSString *reuseIdentifier = [NSString stringWithFormat:@"%f", annotation.coordinate.longitude];
+
+    // For better performance, always try to reuse existing annotations.
+    CustomAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier];
+
+    // If there’s no reusable annotation view available, initialize a new one.
+    if (!annotationView) {
+        annotationView = [[CustomAnnotationView alloc] initWithReuseIdentifier:reuseIdentifier];
+        annotationView.frame = CGRectMake(0, 0, 40, 40);
+
+        // Set the annotation view’s background color to a value determined by its longitude.
+        CGFloat hue = (CGFloat)annotation.coordinate.longitude / 100;
+        annotationView.backgroundColor = [UIColor colorWithHue:hue saturation:0.5 brightness:1 alpha:1];
+    }
+
+    return annotationView;
+}
+
+
+size_t idx = 0;
+enum class State { None, WarmingUp, Benchmarking } state = State::None;
+int frames = 0;
+std::chrono::steady_clock::time_point started;
+std::vector<std::pair<std::string, double>> result;
+
+
+- (void)startBenchmarkIteration
+{
+    if (mbgl::bench::locations.size() > idx) {
+        const auto& location = mbgl::bench::locations[idx];
+
+        if (state != State::Benchmarking) state = State::WarmingUp;
+
+        MGLMapCamera *camera = [MGLMapCamera cameraLookingAtCenterCoordinate:CLLocationCoordinate2DMake(location.latitude, location.longitude)
+                                                                fromDistance:location.zoom * 1000000
+                                                                       pitch:30
+                                                                     heading:location.bearing];
+        [self.mapView setCamera:camera withDuration:1.0 animationTimingFunction:NULL completionHandler:^{
+            // Start benchmarking the next location.
+            idx++;
+            [self startBenchmarkIteration];
+        }];
+
+        NSLog(@"Benchmarking \"%s\"", location.name.c_str());
+    } else {
+        // Do nothing. The benchmark is completed.
+        state = State::None;
+        NSLog(@"Benchmark completed.");
+        NSLog(@"Result:");
+        // Report FPS
+        const auto duration = std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::steady_clock::now() - started).count() ;
+        const auto fps = double(frames * 1e6) / duration;
+        NSLog(@"Total frames: %.1d", frames);
+        NSLog(@"FPS: %.1f", fps);
+        exit(0);
+    }
+}
+
+- (void)mapViewDidFinishRenderingFrame:(MGLMapView *)mapView fullyRendered:(__unused BOOL)fullyRendered
+{
+    if (state == State::Benchmarking)
+    {
+        frames++;
+
+        return;
+    }
+    else if (state == State::WarmingUp)
+    {
+        frames = 0;
+        state = State::Benchmarking;
+        started = std::chrono::steady_clock::now();
+
+        return;
+    }
+}
+@end
diff --git a/platform/ios/benchmark/MBXBenchAppDelegate.m b/platform/ios/benchmark/MBXBenchAppDelegate.m
index 684c90d336..52e3bdbe23 100644
--- a/platform/ios/benchmark/MBXBenchAppDelegate.m
+++ b/platform/ios/benchmark/MBXBenchAppDelegate.m
@@ -1,5 +1,5 @@
 #import "MBXBenchAppDelegate.h"
-#import "MBXBenchViewController.h"
+#import "MBXAnnotationViewBenchViewController.h"
 #import <Mapbox/Mapbox.h>
 
 NSString * const MBXMapboxAccessTokenDefaultsKey = @"MBXMapboxAccessToken";
@@ -23,7 +23,7 @@ NSString * const MBXMapboxAccessTokenDefaultsKey = @"MBXMapboxAccessToken";
     }
 
     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
-    self.window.rootViewController = [MBXBenchViewController new];
+    self.window.rootViewController = [MBXAnnotationViewBenchViewController new];
     [self.window makeKeyAndVisible];
 
     return YES;
diff --git a/platform/ios/benchmark/MBXBenchViewController.mm b/platform/ios/benchmark/MBXBenchViewController.mm
index 84c2790d50..fe4d098458 100644
--- a/platform/ios/benchmark/MBXBenchViewController.mm
+++ b/platform/ios/benchmark/MBXBenchViewController.mm
@@ -1,10 +1,10 @@
 #import "MBXBenchViewController.h"
 
-#import "MBXBenchAppDelegate.h"
-
 #import <Mapbox/Mapbox.h>
 #import "MGLMapView_Private.h"
 
+#import "MBXBenchAppDelegate.h"
+
 #include "locations.hpp"
 
 #include <chrono>
@@ -19,25 +19,25 @@
 
 #pragma mark - Setup
 
-+ (void)initialize
-{
-    if (self == [MBXBenchViewController class])
-    {
-        [[NSUserDefaults standardUserDefaults] registerDefaults:@{
-            @"MBXUserTrackingMode": @(MGLUserTrackingModeNone),
-            @"MBXShowsUserLocation": @NO,
-            @"MBXDebug": @NO,
-        }];
-    }
-}
+//+ (void)initialize
+//{
+//    if (self == [MBXBenchViewController class])
+//    {
+//        [[NSUserDefaults standardUserDefaults] registerDefaults:@{
+//            @"MBXUserTrackingMode": @(MGLUserTrackingModeNone),
+//            @"MBXShowsUserLocation": @NO,
+//            @"MBXDebug": @NO,
+//        }];
+//    }
+//}
 
 - (void)viewDidLoad
 {
     [super viewDidLoad];
 
     // Use a local style and local assets if they’ve been downloaded.
-    NSURL *tileSourceURL = [[NSBundle mainBundle] URLForResource:@"mapbox.mapbox-terrain-v2,mapbox.mapbox-streets-v6" withExtension:nil subdirectory:@"tiles"];
-    NSURL *url = [NSURL URLWithString:tileSourceURL ? @"asset://styles/streets-v8.json" : @"mapbox://styles/mapbox/streets-v8"];
+    NSURL *tileSourceURL = [[NSBundle mainBundle] URLForResource:@"mapbox.mapbox-terrain-v2,mapbox.mapbox-streets-v7" withExtension:nil subdirectory:@"tiles"];
+    NSURL *url = [NSURL URLWithString:tileSourceURL ? @"asset://styles/streets-v10.json" : @"mapbox://styles/mapbox/streets-v10"];
     self.mapView = [[MGLMapView alloc] initWithFrame:self.view.bounds styleURL:url];
     self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
     self.mapView.delegate = self;
diff --git a/platform/ios/benchmark/assets/styles/empty.json b/platform/ios/benchmark/assets/styles/empty.json
new file mode 100644
index 0000000000..3986412580
--- /dev/null
+++ b/platform/ios/benchmark/assets/styles/empty.json
@@ -0,0 +1 @@
+{"version":8,"sources":{},"layers":[]}
diff --git a/platform/ios/benchmark/locations.cpp b/platform/ios/benchmark/locations.cpp
index 9f53877e40..d42c930f72 100644
--- a/platform/ios/benchmark/locations.cpp
+++ b/platform/ios/benchmark/locations.cpp
@@ -3,15 +3,30 @@
 namespace mbgl {
 namespace bench {
 
+//const std::vector<Location> locations = {
+//    { "paris",             2.3411,   48.8664, 11,   0.0 },
+//    { "paris2",            2.3516,   48.8356, 13, 273.8 },
+//    { "alps",             10.6107,   46.9599,  6,   0.0 },
+//    { "us east",         -84.3395,   36.9400,  5,   0.0 },
+//    { "greater la",     -117.9529,   34.0259,  9,   0.0 },
+//    { "sf",             -122.4202,   37.7625, 14,   0.0 },
+//    { "oakland",        -122.2328,   37.8267, 12,   0.0 },
+//    { "germany",           9.2280,   50.9262,  6,   0.0 },
+//    { "east asia",          126.5,     33.35,  5,   0.0 },
+//};
+
 const std::vector<Location> locations = {
-    { "paris",             2.3411,   48.8664, 11,   0.0 },
-    { "paris2",            2.3516,   48.8356, 13, 273.8 },
-    { "alps",             10.6107,   46.9599,  6,   0.0 },
-    { "us east",         -84.3395,   36.9400,  5,   0.0 },
-    { "greater la",     -117.9529,   34.0259,  9,   0.0 },
-    { "sf",             -122.4202,   37.7625, 14,   0.0 },
-    { "oakland",        -122.2328,   37.8267, 12,   0.0 },
-    { "germany",           9.2280,   50.9262,  6,   0.0 },
+    { "paris",             2.3411,   48.8664, 15,   0.0 },
+    { "paris2",            2.3516,   48.8356, 60, 280.0 },
+    { "alps",             10.6107,   46.9599,  50,   0.0 },
+    { "us east",         -84.3395,   36.9400,  15,   0.0 },
+    { "greater la",     -117.9529,   34.0259,  60,   0.0 },
+    { "sf",             -122.4202,   37.7625, 50,   280.0 },
+    { "germany",           9.2280,   50.9262,  15,   0.0 },
+    { "east asia",          126.5,     33.35,  60,   0.0 },
+    { "paris3",             2.3411,   48.8664, 60,   0.0 },
+    { "east asia2",          126.5,     33.35, 60,   0.0 },
+    { "sf2",             -122.4202,   37.7625, 60,   0.0 },
 };
 
 }
diff --git a/platform/ios/ios.xcodeproj/project.pbxproj b/platform/ios/ios.xcodeproj/project.pbxproj
index 0951a94218..e6ddda9d87 100644
--- a/platform/ios/ios.xcodeproj/project.pbxproj
+++ b/platform/ios/ios.xcodeproj/project.pbxproj
@@ -339,6 +339,7 @@
 		967C864D210A9D3C004DF794 /* UIDevice+MGLAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = 967C864A210A9D3C004DF794 /* UIDevice+MGLAdditions.m */; };
 		967C864E210A9D3C004DF794 /* UIDevice+MGLAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = 967C864A210A9D3C004DF794 /* UIDevice+MGLAdditions.m */; };
 		968F36B51E4D128D003A5522 /* MGLDistanceFormatter.h in Headers */ = {isa = PBXBuildFile; fileRef = 3557F7AE1E1D27D300CCA5E6 /* MGLDistanceFormatter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		96C3CCF92076971D002588B5 /* MBXAnnotationViewBenchViewController.mm in Sources */ = {isa = PBXBuildFile; fileRef = 96C3CCF82076971D002588B5 /* MBXAnnotationViewBenchViewController.mm */; };
 		96E027231E57C76E004B8E66 /* Localizable.strings in Resources */ = {isa = PBXBuildFile; fileRef = 96E027251E57C76E004B8E66 /* Localizable.strings */; };
 		96E516DC2000547000A02306 /* MGLPolyline_Private.h in Headers */ = {isa = PBXBuildFile; fileRef = 9654C1251FFC1AB900DB6A19 /* MGLPolyline_Private.h */; };
 		96E516DD200054F200A02306 /* MGLPolygon_Private.h in Headers */ = {isa = PBXBuildFile; fileRef = 9654C1271FFC1CC000DB6A19 /* MGLPolygon_Private.h */; };
@@ -572,7 +573,6 @@
 		DAAF722E1DA903C700312FA4 /* MGLStyleValue_Private.h in Headers */ = {isa = PBXBuildFile; fileRef = DAAF722A1DA903C700312FA4 /* MGLStyleValue_Private.h */; };
 		DABCABAC1CB80692000A7C39 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = DABCABAB1CB80692000A7C39 /* main.m */; };
 		DABCABAF1CB80692000A7C39 /* MBXBenchAppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = DABCABAE1CB80692000A7C39 /* MBXBenchAppDelegate.m */; };
-		DABCABB21CB80692000A7C39 /* MBXBenchViewController.mm in Sources */ = {isa = PBXBuildFile; fileRef = DABCABB11CB80692000A7C39 /* MBXBenchViewController.mm */; };
 		DABCABB71CB80692000A7C39 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = DABCABB61CB80692000A7C39 /* Assets.xcassets */; };
 		DABCABBA1CB80692000A7C39 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = DABCABB81CB80692000A7C39 /* LaunchScreen.storyboard */; };
 		DABCABC21CB8071D000A7C39 /* locations.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DABCABBF1CB80717000A7C39 /* locations.cpp */; };
@@ -1005,6 +1005,8 @@
 		967C8649210A9D3C004DF794 /* UIDevice+MGLAdditions.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "UIDevice+MGLAdditions.h"; sourceTree = "<group>"; };
 		967C864A210A9D3C004DF794 /* UIDevice+MGLAdditions.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "UIDevice+MGLAdditions.m"; sourceTree = "<group>"; };
 		968F36B41E4D0FC6003A5522 /* ja */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.strings; name = ja; path = ja.lproj/Localizable.strings; sourceTree = "<group>"; };
+		96C3CCF72076971D002588B5 /* MBXAnnotationViewBenchViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MBXAnnotationViewBenchViewController.h; sourceTree = "<group>"; };
+		96C3CCF82076971D002588B5 /* MBXAnnotationViewBenchViewController.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = MBXAnnotationViewBenchViewController.mm; sourceTree = "<group>"; };
 		96E027241E57C76E004B8E66 /* Base */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = Base; path = Base.lproj/Localizable.strings; sourceTree = "<group>"; };
 		96E027271E57C77A004B8E66 /* ja */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = ja; path = ja.lproj/Localizable.strings; sourceTree = "<group>"; };
 		96E027281E57C7DB004B8E66 /* zh-Hans */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "zh-Hans"; path = "zh-Hans.lproj/Localizable.strings"; sourceTree = "<group>"; };
@@ -2022,6 +2024,8 @@
 				DABCABAE1CB80692000A7C39 /* MBXBenchAppDelegate.m */,
 				DABCABB01CB80692000A7C39 /* MBXBenchViewController.h */,
 				DABCABB11CB80692000A7C39 /* MBXBenchViewController.mm */,
+				96C3CCF72076971D002588B5 /* MBXAnnotationViewBenchViewController.h */,
+				96C3CCF82076971D002588B5 /* MBXAnnotationViewBenchViewController.mm */,
 				DABCABBF1CB80717000A7C39 /* locations.cpp */,
 				DABCABC01CB80717000A7C39 /* locations.hpp */,
 				DABCABB61CB80692000A7C39 /* Assets.xcassets */,
@@ -2652,6 +2656,7 @@
 					};
 					DA1DC9491CB6C1C2006E619F = {
 						CreatedOnToolsVersion = 7.3;
+						DevelopmentTeam = GJZR2MEM28;
 						LastSwiftMigration = 0820;
 					};
 					DA2E88501CC036F400F24E7B = {
@@ -2670,6 +2675,7 @@
 					};
 					DABCABA71CB80692000A7C39 = {
 						CreatedOnToolsVersion = 7.3;
+						DevelopmentTeam = GJZR2MEM28;
 					};
 				};
 			};
@@ -3173,7 +3179,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				DABCABB21CB80692000A7C39 /* MBXBenchViewController.mm in Sources */,
+				96C3CCF92076971D002588B5 /* MBXAnnotationViewBenchViewController.mm in Sources */,
 				DABCABAF1CB80692000A7C39 /* MBXBenchAppDelegate.m in Sources */,
 				DABCABC21CB8071D000A7C39 /* locations.cpp in Sources */,
 				DABCABAC1CB80692000A7C39 /* main.m in Sources */,
@@ -3596,7 +3602,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = GJZR2MEM28;
 				INFOPLIST_FILE = "$(SRCROOT)/app/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.mapbox.MapboxGL;
@@ -3609,7 +3615,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = GJZR2MEM28;
 				INFOPLIST_FILE = "$(SRCROOT)/app/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.mapbox.MapboxGL;
@@ -3845,6 +3851,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = GJZR2MEM28;
 				INFOPLIST_FILE = "$(SRCROOT)/benchmark/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.mapbox.bench;
@@ -3856,6 +3863,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = GJZR2MEM28;
 				INFOPLIST_FILE = "$(SRCROOT)/benchmark/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.mapbox.bench;
diff --git a/platform/ios/ios.xcodeproj/xcshareddata/xcschemes/iosapp.xcscheme b/platform/ios/ios.xcodeproj/xcshareddata/xcschemes/iosapp.xcscheme
index 1f8969faf7..ac1a5fb65d 100644
--- a/platform/ios/ios.xcodeproj/xcshareddata/xcschemes/iosapp.xcscheme
+++ b/platform/ios/ios.xcodeproj/xcshareddata/xcschemes/iosapp.xcscheme
@@ -42,7 +42,7 @@
       </AdditionalOptions>
    </TestAction>
    <LaunchAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Release"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       launchStyle = "0"
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index 807db1be6e..2c58dea563 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -1168,6 +1168,9 @@ public:
     }
 }
 
+#import <sys/utsname.h>
+
+
 - (void)validateDisplayLink
 {
     BOOL isVisible = self.superview && self.window;