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Re: Graphics Limits … Windows & CAIRO


On Sat, May 12, 2012 at 04:59:58PM +0200, Marco Serantoni wrote:
> - Not with CAIRO on windows, since http://trac.wxwidgets.org/ticket/14194 was closed 4-5 weeks ago and tests were conducted on GDI (only matrox supports this in HW).

CAIRO is a showstopper on Linux without gallium (i.e. hw acceleration),
so the problem remain...

> - We were using wxDC style, drawing immediate is more an handicap than a performance gaining approach with HW acceleration.

I'm not familiar with this issue

> I'm almost scared to fight with a new Custom Graphics Abstration Layer. 

Do you have another idea to keep the current (very reasonable)
performance without hw accel and implementing hw accel support (most
probably with opengl)?

I agree that is not a trivial problem to solve. There are worse in the
field :D for example: code for opengl supporting efficiently both triangle
streaming gpu (Intel/ATI/NVidia) *and* tile renderers (PowerVR): if you
think about it these are almost complementar way to handle rendering:P

That and most open source drivers tends to have better performance in
the 2d graphics path...

Lorenzo Marcantonio
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