Re: Floating point in pango

[Behdad Esfahbod <behdad behdad org>]

On Mon, 2006-07-10 at 08:46 -0400, Jorn Baayen wrote:
> Hi,
> 
> Just FYI, GTK+ >= 2.8 uses pango-cairo to draw text, which apart from
> using cairo to draw also calculates the position of each glyph using
> floating point whereas this was done using fixed point previously. 

True.  That's because cairo's public API uses floating point.  Do you
have any idea how Pango can do better here?

> Pango-cairo alone appears to be responsible for an approximately 30%
> slowdown when drawing text on ARM.

What do you exactly mean by 30% slowdown?  How was that measured?

> Thanks,
> 
> Jorn

Cheers,

-- 
behdad
http://behdad.org/

"Commandment Three says Do Not Kill, Amendment Two says Blood Will Spill"
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