149 lines
4.1 KiB
Plaintext
149 lines
4.1 KiB
Plaintext
#import "MBXBenchViewController.h"
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#import <mbgl/ios/MGLMapView.h>
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#include "locations.hpp"
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#include <chrono>
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@interface MGLMapView (MBXBenchmarkAdditions)
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#pragma mark - Debugging
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/** Triggers another render pass even when it is not necessary. */
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- (void)invalidate;
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/** Returns whether the map view is currently loading or processing any assets required to render the map */
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- (BOOL)isFullyLoaded;
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@end
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@interface MBXBenchViewController () <MGLMapViewDelegate>
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@property (nonatomic) MGLMapView *mapView;
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@end
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@implementation MBXBenchViewController
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#pragma mark - Setup
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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NSURL* url = [[NSURL alloc] initWithString:@"asset://styles/mapbox-streets-v7.json"];
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self.mapView = [[MGLMapView alloc] initWithFrame:self.view.bounds styleURL:url];
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self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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self.mapView.delegate = self;
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self.mapView.zoomEnabled = NO;
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self.mapView.scrollEnabled = NO;
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self.mapView.rotateEnabled = NO;
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self.mapView.userInteractionEnabled = YES;
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[self.mapView setDebugActive:NO];
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[self startBenchmarkIteration];
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[self.view addSubview:self.mapView];
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}
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using Clock = std::chrono::steady_clock;
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using TimePoint = Clock::time_point;
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template <typename Duration>
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inline int64_t Microseconds(Duration d) {
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return std::chrono::duration_cast<std::chrono::microseconds>(d).count();
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}
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size_t idx = 0;
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enum class State { None, WaitingForAssets, WarmingUp, Benchmarking } state = State::None;
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int frames = 0;
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TimePoint started;
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std::vector<std::pair<std::string, double>> result;
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static const int warmupDuration = 20; // frames
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static const int benchmarkDuration = 200; // frames
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- (void)startBenchmarkIteration
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{
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if (mbgl::bench::locations.size() > idx) {
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const auto& location = mbgl::bench::locations[idx];
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[self.mapView setCenterCoordinate:CLLocationCoordinate2DMake(location.latitude, location.longitude) zoomLevel:location.zoom animated:NO];
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self.mapView.direction = location.bearing;
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state = State::WaitingForAssets;
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NSLog(@"Benchmarking \"%s\"", location.name.c_str());
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NSLog(@"- Loading assets...");
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} else {
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// Do nothing. The benchmark is completed.
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NSLog(@"Benchmark completed.");
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NSLog(@"Result:");
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size_t colWidth = 0;
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for (const auto& row : result) {
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colWidth = std::max(row.first.size(), colWidth);
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}
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for (const auto& row : result) {
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NSLog(@"| %-*s | %4.1f fps |", int(colWidth), row.first.c_str(), row.second);
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}
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exit(0);
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}
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}
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- (void)mapViewDidFinishRenderingFrame:(MGLMapView *)mapView fullyRendered:(__unused BOOL)fullyRendered
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{
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if (state == State::Benchmarking)
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{
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frames++;
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if (frames >= benchmarkDuration)
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{
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state = State::None;
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// Report FPS
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const auto duration = Microseconds(Clock::now() - started);
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const auto fps = double(frames * 1e6) / duration;
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result.emplace_back(mbgl::bench::locations[idx].name, fps);
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NSLog(@"- FPS: %.1f", fps);
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// Start benchmarking the next location.
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idx++;
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[self startBenchmarkIteration];
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} else {
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[mapView invalidate];
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}
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return;
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}
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else if (state == State::WarmingUp)
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{
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frames++;
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if (frames >= warmupDuration)
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{
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frames = 0;
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state = State::Benchmarking;
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started = Clock::now();
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NSLog(@"- Benchmarking for %d frames...", benchmarkDuration);
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}
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[mapView invalidate];
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return;
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}
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else if (state == State::WaitingForAssets)
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{
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if ([mapView isFullyLoaded])
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{
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// Start the benchmarking timer.
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state = State::WarmingUp;
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[self.mapView emptyMemoryCache];
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NSLog(@"- Warming up for %d frames...", warmupDuration);
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[mapView invalidate];
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}
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return;
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}
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}
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- (NSUInteger)supportedInterfaceOrientations
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{
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return UIInterfaceOrientationMaskLandscape;
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}
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@end
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