I am trying to create an array of CGImageRefs that I will use to create
CGLayers.
myCGImageRefImage is the CGImageRef of the key image.
Each loop, I'm trying to reload imgForLayer with this key image.
The line...imgForLayer = CGImageCreateCopy(myCGImageRefImage) ...doesn't work
at all.
Given:
CGImageRef myCGImageRefImage;
NSMutableArray *thresholdsArray;// an array of NSNumbers
0,51,102,153,204,255
NSMutableArray * CGImageRefArray;
This is the faulty block of code...
- (void) processThresholds{
[CGImageRefArrayremoveAllObjects];
CGImageRefimgForLayer = NULL;// Start with no image
int cnt = [thresholdsArraycount], q = 0;float lo, hi;
do
{
lo = [[thresholdsArrayobjectAtIndex:q]floatValue];
hi = [[thresholdsArrayobjectAtIndex:q+1]floatValue];
imgForLayer = CGImageCreateCopy(myCGImageRefImage);
imgForLayer = ApplySingleZoneComposition([@"SingleZone" UTF8String],
imgForLayer, lo, hi);
[CGImageRefArray addObject:[[NSValue alloc] initWithBytes:imgForLayer
objCType:@encode(CGImageRef)]];
imgForLayer = NULL;
q++;
}while(q<cnt-1);
}
...Any ideas greatly appreciated,
Thanks,
Rick
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