Re: Fast Screen update
Re: Fast Screen update
- Subject: Re: Fast Screen update
- From: j o a r <email@hidden>
- Date: Tue, 16 Nov 2004 08:35:18 +0100
On 2004-11-16, at 02.12, Damien Bobillot wrote:
Is there a way to update changes to image faster on the screen? I
tried to change brightness of a 2 MB photo image, and it is too
slow. I, however, tried another program, and it changes brightness
instantaneously. Any help would be greatly appreciated.
Are you sure the problem is about drawing on the screen ? it may also
be in brightness calculation.
How do you draw the image to the screen ? which type of NSView ?
You may profile your program with CHUD Tools to see exactly in which
functions your program wastes time.
Exactly what I wrote in my first reply to this guy - no answer so far...
The first rule of resolving a performance problem: "It's never what you
think it is".
ALWAYS check where the problem is before you try to resolve it.
Benchmark before, benchmark during, benchmark after...
j o a r
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