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Re: [ft] Freetype performance question?

From: mpsuzuki
Subject: Re: [ft] Freetype performance question?
Date: Wed, 21 Jun 2006 09:46:23 +0900


On Tue, 20 Jun 2006 11:34:59 -0700
Michael Sander <address@hidden> wrote:

>Most users of freetype on a X system first use the freetype2 engine to 
>render the font to some in-memory bitmap and then use XPutImage to 
>render the image to the screen.

"X system's freetype2" is designed by developers,
not by FreeType developers. FreeType is just a component, so
I'm afraid, there are many slowdown factors out of FreeType.

>Does anyone have any performance benchmarks compared to simple X 
>rendering (i.e. XDrawString).

Followings are the threads in some mailing list I know.
        (and its following posts)
        (and its following posts)
# anybody knows a comparion of gtk2 vs gtk1 in 2005, by novell guys?
# I've heard about...

>                              I am especially concerned over slow X 
>connections. If one is rendering a full screen of text using freetype on 
>a slow X connection they have to effectively transfer a full screen 
>bitmap image.

I'm afraid the number of people who care about
remote X and without XRender might be quite limited.

>Has anyone ever tested this or measured the performance hit compared to 

I've never seen the remote X server rendering benchmark.
BTW, even if you can find that 100 or 1000 times slower,
do you have any idea to solve the problem?


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