On Feb 11, 2005, at 7:35 AM, Scott Thompson wrote:
On Feb 11, 2005, at 8:54 AM, Michael Becker wrote:
Am 11.02.2005 um 15:29 schrieb Scott Thompson:
One way to do that would be to create an offscreen bitmap and draw
the image from the JPEG into the offscreen bitmap context. Then you
can create another CGImage from the pixels of the offscreen context
and use it.
Phew, sounds easy to you, probably ;-)
Could you maybe provide some pseudo-code or just something for me to
hang on to? I understand what you are saying but I have not the
slightest clue as of how to get there...
Any kind of pseudo-code-skeleton or something would be great!!
If I had to guess, I would say that iPhoto is not using Quartz to draw
it's image thumbnails. I suspect that, instead, they are probably
using OpenGL and textured quads to get the absolute best performance.
Still, you could try the code above and see if it improves the drawing
speed of your application enough that you are happy with it.
No iPhoto uses Core Graphic not OpenGL (at least in last version,
haven't look at the latest). Shark it.
-Shawn
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