On Tue, 2009-12-29 at 01:49 +0100, Louise Hoffman wrote:
> Dear developers,
> I am now more or less finished with my plugin which draws spectrograms
> from audio signals.
> It takes about 30 seconds to draw 750 × 1200 pixels on my 3Ghz.
> Is that slow or fast?

It is damned slow. But this is not surprising as you are setting a
single pixel at a time. Didn't you tell us that you read the plug-in
tutorial at developer.gimp.org? Perhaps you want to read it again. In
particular the parts where it explains how to access and change pixel
data efficiently.


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