• Ian Hickson's avatar
    License update (#45373) · 449f4a66
    Ian Hickson authored
    * Update project.pbxproj files to say Flutter rather than Chromium
    
    Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.
    
    * Update the copyright notice checker to require a standard notice on all files
    
    * Update copyrights on Dart files. (This was a mechanical commit.)
    
    * Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.
    
    Some were already marked "The Flutter Authors", not clear why. Their
    dates have been normalized. Some were missing the blank line after the
    license. Some were randomly different in trivial ways for no apparent
    reason (e.g. missing the trailing period).
    
    * Clean up the copyrights in non-Dart files. (Manual edits.)
    
    Also, make sure templates don't have copyrights.
    
    * Fix some more ORGANIZATIONNAMEs
    Unverified
    449f4a66
AppDelegate.m 2.99 KB
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#import "AppDelegate.h"

@interface AppDelegate ()
  @property (atomic) uint64_t textureId;
  @property (atomic) int framesProduced;
  @property (atomic) int framesConsumed;
  @property (atomic) int lastFrameConsumed;
  @property (atomic) double startTime;
  @property (atomic) double endTime;
  @property (atomic) double frameRate;
  @property (atomic) double frameStartTime;
  @property (atomic) NSTimer* timer;

  - (void)tick:(NSTimer*)timer;
@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  FlutterViewController* flutterController =
      (FlutterViewController*)self.window.rootViewController;
  FlutterMethodChannel* channel =
      [FlutterMethodChannel methodChannelWithName:@"texture"
                                  binaryMessenger:flutterController];
  [channel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) {
      if ([@"start" isEqualToString:call.method]) {
        _framesProduced = 0;
        _framesConsumed = 0;
        _frameRate = 1.0 / [(NSNumber*) call.arguments intValue];
        _timer = [NSTimer scheduledTimerWithTimeInterval:_frameRate
                                                  target:self
                                                selector:@selector(tick:)
                                                userInfo:nil
                                                 repeats:YES];
        _startTime = [[NSDate date] timeIntervalSince1970];
        result(nil);
      } else if ([@"stop" isEqualToString:call.method]) {
        [_timer invalidate];
        _endTime = [[NSDate date] timeIntervalSince1970];
        result(nil);
      } else if ([@"getProducedFrameRate" isEqualToString:call.method]) {
        result(@(_framesProduced / (_endTime - _startTime)));
      } else if ([@"getConsumedFrameRate" isEqualToString:call.method]) {
        result(@(_framesConsumed / (_endTime - _startTime)));
      } else {
        result(FlutterMethodNotImplemented);
      }
  }];
  _textureId = [flutterController registerTexture:self];
  return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

- (void)tick:(NSTimer*)timer {
  FlutterViewController* flutterController =
      (FlutterViewController*)self.window.rootViewController;
  [flutterController textureFrameAvailable:_textureId];
  _frameStartTime = [[NSDate date] timeIntervalSince1970];
  // We just pretend to be producing a frame.
  _framesProduced++;
}

- (CVPixelBufferRef)copyPixelBuffer {
  double now = [[NSDate date] timeIntervalSince1970];
  if (now < _frameStartTime
      || _frameStartTime + _frameRate < now
      || _framesProduced == _lastFrameConsumed) return nil;
  _framesConsumed++;
  _lastFrameConsumed = _framesProduced;
  // We just pretend to be handing over the produced frame to the consumer.
  return nil;
}
@end