Re: [AD] OpenGL and upside down

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On Tue, Mar 18, 2008 at 2:43 AM, Peter Wang <novalazy@xxxxxxxxxx> wrote:
> Correct me if I'm wrong, but OpenGL shouldn't be aware of any "negative
> pitch" at all.  It's just any Allegro and user code which locks a
> rectangle needs to keep in mind that ptr += rect.pitch might actually
> decrement ptr.
That's what I was thinking; Allegro would set itself to suit OpenGL,
rather than the other way around.

Pete




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