[cairo] Text performance on windows?

Carl Worth cworth at cworth.org
Wed Sep 24 13:21:09 PDT 2008

[Just looking for loose threads in my inbox here...]

On Wed, 2008-09-10 at 18:23 -0700, Vladimir Vukicevic wrote:
> Yep, no worries, just wanted to make sure we'd be testing the same  
> thing.  cairo_show_text is part of the "toy" text api, and is really  
> just there for prototyping and testing; it's not really a production- 
> quality API.  So as your timings show, it looks like on average half  
> of the time is spent inside text_to_glyphs, which should go away if  
> you use show_glyphs directly.

That much sounds good.

>   The perf with a dib32 and an image  
> surface looks to be the close, so I'm guessing we're taking a fallback  
> path there -- I'll definitely take a look there, as we may be able to  
> avoid that.  I'm surprised by DDBs being slower than DIB24, though.
> I'll try to create a small testcase for this in the next few days and  
> send it to the list and we can compare numbers.

Any news on these Vlad? Do we have a potential performance problem here


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