[PD] in which context is GEM slow ?

cgc at humboldtblvd.com cgc at humboldtblvd.com
Thu Feb 19 17:52:57 CET 2004

Quoting julien.breval at tremplin-utc.net:

> > One problem is that GEM on windows only handles power-of-two textures
> > (64, 256, 512, etc).  So if you have a 300x300 image that becomes 
> > 512x512 in OpenGL on windows.  With small static images you should not
> > have any sort of performance issue even on very old hardware.  What 
> > type of hardware are you using?  
> Intel 82845G Graphics Controller (internal video device), with a recent
> PC 
> (Pentium 4 2.4 GHz, RAM = 512 Mo)

Oh say no more, this is a huge part of your performance problem.  The only thing
Extreme about Intel's graphics chips is how bad they perform.  Just about any
AGP card will give you a huge boost in speed and offload all of the textures
from main memory to the video card.


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