NSMutableArray of CGImageRef ?

smithdale87 · 08-10-2008, 12:50 PM

Im using Quartz to draw some animations ( see problem in my other thread ), and I wanted to make an array of CGImageRef to store the images in, but I get an "passing argument 1 of 'addObject:' from incompatible pointer type.

Apparently it's not possible to do this, but I really don't want to have to keep an array of UIIMage* and have to use image.CGImage each time I want to draw those images.

Any ideas/suggestions?

mxweas · 08-10-2008, 04:12 PM

CGImageRef is just a pointer to a CGImage. before you put it in the array cast it to a CGImage.

Max

smithdale87 · 08-10-2008, 05:31 PM

Thanks.

On that note, is there any performance increase/decrease when using
UIImage's drawInRect method versus CGContextDrawImage?

More importantly, does it matter to mix them?

mxweas · 08-10-2008, 06:19 PM

I would assume UIImage just contains a CGImage so running core graphics methods cuts out the middle man being UIImage.

Max

smithdale87 · 08-10-2008, 07:30 PM

Thanks I'll give it a try.