What's the right memory management pattern for buffer->CGImageRef->UIImage?

Question

I have a function that takes some bitmap data and returns a UIImage * from it. It looks something like so:

UIImage * makeAnImage() 
{
    unsigned char * pixels          


        

Answer 1

unsigned char * pixels = malloc(...);

I also had problem with malloc/free after using CGImageCreate I finally found good and simple solution. I just replace line:

CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, pixels, pixelBufferSize, NULL);

with:

NSData *data = [NSData dataWithBytes:pixels length:pixelBufferSize];
CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)data);

Just after that i could free mallocked memory:

free (pixels);