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Re: [ft-devel] Reg:True Type Font display


From: Werner LEMBERG
Subject: Re: [ft-devel] Reg:True Type Font display
Date: Thu, 25 Feb 2010 10:32:59 +0100 (CET)

> We have ported Free Type Font Library (freetype-2.3.11) on fixed
> point DSP processor (BF533, 600 MHz) in VDSP Platform.
> 
> Basic functionality is working fine. We have got output display in
> LCD monitor through HDMI connector.
> 
> But the FT_Load_Char() function is taking lot of time to execute
> (around 3 ms per character).
> 
> Could you please provide your inputs for optimizing the function
> FT_Load_Char()?

Caching, caching, caching.  Especially loading a hinted TrueType glyph
needs a lot of resources.  I really doubt that there is any
possibility to make it really faster, given that David is a specialist
for exactly such things.  Note, however, that not all compilers
optimize in the same way, so you should play with your optimization
options, together with a lot of profiling.


    Werner




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