Re: [NSImage] Bug in System Preferences? [solved]
Re: [NSImage] Bug in System Preferences? [solved]
- Subject: Re: [NSImage] Bug in System Preferences? [solved]
- From: Gregory Weston <email@hidden>
- Date: Tue, 26 Oct 2010 07:14:02 -0400
Iceberg-Dev wrote:
>> When working with NSBitmapImageRep, calling -bitmapData is a signal
>> that you may be editing the data. It is not repackaged until the
>> bitmap is drawn, or somesuch. It's illegal to just stash a pointer
>> to the data and use it arbitrarily later - that won't necessarily
>> be the same data as now backs the image. This is described in the
>> 10.6 AppKit release notes.
>
> Calling -bitmapData works on Mac OS X 10.5, it does not work on Mac
> OS X 10.6. On 10.6, it's slow and the data gets zeroed. Bug?
It would seem, but where is uncertain. I just threw something together to access every byte of a 3MPixel image sequentially. It consistently took just over 0.02s and did not result in data loss.
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