[poppler] Any chance for optimization?

Albert Astals Cid aacid at kde.org
Tue Mar 16 11:39:46 PDT 2010


A Dimarts, 16 de març de 2010, Norbert Roos va escriure:
> Hello,
> 
> I would like you to ask whether you think that the poppler code has big
> potential to be optimized for speed... please don't hit me if there has
> already done big efforts towards this.
> 
> The background for this question is: We are experimenting here with a
> PDF reader on a beagle board clone (an embedded device), which is quite
> slow compared to a usual PC. Each time the zoom level changes, the page
> is rendered from scratch with the specific dpi; i guess there is no way
> around this. Unfortunately, with my test PDF, this takes so long that
> the user won't just realize a kind of delay, but he is really waiting
> and waiting for the result.
> 
> The same PDF on an iPod zooms absolutely smoothly, without any
> noticeable render delays, a second device, an Android phone, is a bit
> slower than the iPod, but much faster than my PDF reader using poppler.
> Obviously, somehow some people manage to render faster (or trickier).
> 
> Well, and so the question came up: Do you think it could be worth diving
> into the source code and optimize, or would that be hopeless?

It can be optimized, but don't expect to make it double faster without heavy 
work.

We are waiting for your patches :-)

Albert

> 
> Btw, i'm using Qt4 and Splash as backend.
> 
> Thanks in advance for your advice
> 
> bye
> Norbert
> 
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