Crashing when masking an image
- by shameer
I am trying to mask an image with a 'mask image". its work fine at first time. but when i try one more time with in the application with same mask image . Application crashed. but when trying with another mask image it works fine. Why this happens? pls help?
Console shows ": CGImageMaskCreate: invalid mask bits/component: 4294967295."
(UIImage*) maskImage:(UIImage *)image withMask:(UIImage *)maskImage {
CGImageRef maskRef = maskImage.CGImage;
CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef),
CGImageGetHeight(maskRef),
CGImageGetBitsPerComponent(maskRef),
CGImageGetBitsPerPixel(maskRef),
CGImageGetBytesPerRow(maskRef),
CGImageGetDataProvider(maskRef), NULL, false);
CGImageRef masked = CGImageCreateWithMask([image CGImage], mask);
UIImage *img2=[UIImage imageWithCGImage:masked];
CGImageRelease(maskRef);
CGImageRelease(mask);
CGImageRelease(masked);
return img2;
}
fun1()
{
view.image=[self maskImage:image1 withMask:[UIImage imageNamed:@"image2.png"]];
}
fun2()
{
view.image=[self maskImage:image1 withMask:[UIImage imageNamed:@"image2.png"]]; view.image=[self maskImage:image1 withMask:[UIImage imageNamed:@"image3.png"]];
}
fun3()
{
view.image=[self maskImage:image1 withMask:[UIImage imageNamed:@"image2.png"]];
view.image=[self maskImage:image1 withMask:[UIImage imageNamed:@"image2.png"]];
}
When calling fun1 and fun2 apllication works fine. Application crashing when calling fun3.
