1.1 --- a/src/ios/viewctl.m	Sat Sep 19 05:51:51 2015 +0300
     1.2 +++ b/src/ios/viewctl.m	Mon Sep 21 07:40:34 2015 +0300
     1.3 @@ -5,6 +5,7 @@
     1.4  
     1.5  @interface ViewController () {
     1.6  	EAGLContext *ctx;
     1.7 +	float pixel_scale;
     1.8  
     1.9  	ADBannerView *ad;
    1.10  	BOOL ad_visible;
    1.11 @@ -25,6 +26,7 @@
    1.12  {
    1.13      [super viewDidLoad];
    1.14  
    1.15 +
    1.16      self->ctx = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
    1.17      if(!self->ctx) {
    1.18          NSLog(@"Failed to create OpenGL ES 2.0 context");
    1.19 @@ -34,6 +36,14 @@
    1.20      view.context = self->ctx;
    1.21      view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
    1.22  
    1.23 +	if([view respondsToSelector: NSSelectorFromString(@"contentScaleFactor")]) {
    1.24 +		pixel_scale = [[UIScreen mainScreen] scale];
    1.25 +		view.contentScaleFactor = pixel_scale;
    1.26 +		printf("pixel scale: %g\n", pixel_scale);
    1.27 +	} else {
    1.28 +		pixel_scale = 1.0f;
    1.29 +	}
    1.30 +
    1.31  	[self create_ad];
    1.32  
    1.33  	[self init_gl];
    1.34 @@ -124,7 +134,10 @@
    1.35  - (void)viewDidLayoutSubviews
    1.36  {
    1.37  	CGRect rect = self.view.frame;
    1.38 -	reshape(rect.size.width, rect.size.height);
    1.39 +	int xsz = rect.size.width * pixel_scale;
    1.40 +	int ysz = rect.size.height * pixel_scale;
    1.41 +	reshape(xsz, ysz);
    1.42 +	printf("viewport %dx%d (scale: %g)\n", xsz, ysz, pixel_scale);
    1.43  }
    1.44  
    1.45  // ADBannerDelegate functions