Hi,

I need to open a bitmap file, perhaps do some filtering, and render it
to the screen with the maximum possible performance.

I am allowed to assume Snow Leopard.

Now I am a bit confused what technology (-ies) I should use to achieve
this in the fastest and easiest, and the most up-to-date way,

(As always, it's difficult for a newbie to understand what is new and
what is old, what is built on top of what, and what is the latest
trend).

It seems that I need to use Core Image (CIImage) to do the fastest filtering.

How do I render this to screen? Do I need to use NSOpenGLView for
this, or a custom NSView will do, what is more efficient?

Obviously, Core Image is built on top of OpenGL, so that I don't seem
to have to go down to OpenGL when I use Core Image, if I want optimal
performance. But I am unsure about drawing the result to the screen.
Will it somehow slow things down when I use good old NSGraphicContext
to draw a CIImage?

Thanks.
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