Memory not freed with CIImage
Memory not freed with CIImage
- Subject: Memory not freed with CIImage
- From: Stefano Falda <email@hidden>
- Date: Wed, 11 Jun 2008 23:53:19 +0200
Hello,
I've got some code similar to the following, in which I loop in a
list of image files and draw their content to another image.
I'm working with X-Code3 under Leopard with Garbage Collection ON, but
something seems to go wrong, because at the end of all the operations
the memory is not released (in Activity Monitor there are >400 MB
still active that disappear if I close my application).
I've tried using NSImage instead of CIImage and everything seems to
work ok, the memory goes up and then down to where it was before the
operation, but the process takes 1.5>2 times more than with CIImage.
This is an extract of the code:
for (id loopItem in images) {
NSString * imageFileName=(NSString*) loopItem;
destRect=NSMakeRect(currentPos.x, currentPos.y, mosaicSize.width,
mosaicSize.height);
CIImage* thisImage2=[CIImage imageWithContentsOfURL:[NSURL
fileURLWithPath:imageFileName]];
if (thisImage2!=NULL)
{
[thisImage2 drawInRect:destRect fromRect:NSMakeRect(0,0,
[thisImage2 extent].size.width,[thisImage2 extent].size.height)
operation:NSCompositeSourceOver fraction:1.0];
}
}
Maybe I'm missing something very stupid, because I'm new to Objective-
C and Mac Programming.
I thought that, being a newbie, using Garbage Collection I could ease
my life, but I'm thinking if I need to recode this project with
standard memory management.
I hope that someone can explain where I'm making something wrong.
Thank you
Stefano
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