[cairo] Fast text rendering

Michael Urman murman at gmail.com
Tue Jul 13 09:09:16 PDT 2010

On Tue, Jul 13, 2010 at 04:49,  <michael at cubic.org> wrote:
> It is only draw when nessesary, but the worst case makes it nessesary to
> draw them with 30Hz.
> This is the reason why the 30Hz:
> http://www.grandma2.de/help/en-us/image/Ref_Window_Sheet_DMX.png
> This can actually be drawn to an image and then be mapped to the destination.
> And its geting even worse with lots of dynamic changes:
> http://www.grandma2.de/help/en-us/image/Concept_Effect_2.gif
> http://www.grandma2.de/help/en-us/image/Ref_Window_Sheet_Fixture.png

It looks like these are almost all numbers or number pairs. Have you
tried various caching ideas such as
 - saving and reusing 10 digit or 100 digit-pair paths and just filling
 - pre-rendering 10 digit or 100 digit-pair images and just compositing

Michael Urman

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