Re: Coverflow like background drawing?
Re: Coverflow like background drawing?
- Subject: Re: Coverflow like background drawing?
- From: Jean-Daniel Dupas <email@hidden>
- Date: Sun, 25 Jan 2009 01:32:09 +0100
Le 25 janv. 09 à 01:10, Alex Kac a écrit :
UIKit/AppKit are not thread-safe meaning we should never do drawing
on a background thread. Yet, if we have say 5 views and for
performance reasons we want the main view to draw first and then the
other 4 to draw in the background like how CoverFlow will draw its
icons/images seemingly in the background, how does one do that?
Coverflow does not draw in the background, it load image in background
(and maybe resize them to improve drawing).
Drawing 5 or more images should not be slow enough to have to bother
with threading.
And if it's not fast enough using Cocoa, convert your image into
OpenGL texture and use OpenGL to draw them.
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