On 17 June 2010 10:48, Huang, FrankR <[email protected]> wrote: > What I want to ask is that does driver need handle these all? I think it is a > huge burden for the driver to judge. Why the server gave such parameters to > driver? Maybe one of this special condition can make the driver rendering > result fails, just as geode. And the most important thing is that, if the > driver found it can not do that rendering, it is to late for put the > rendering back to Xserver SW method.
I suspect that EXA's designers didn't consider hardware quite as simple as Geode when working out the API. In fact, I believe they were thinking of the Intel GMA core series, which requires some setup before use, and is not normally considered a high-performance solution, but is fairly flexible. Most PC-style hardware is either of that type, or considerably more capable (such as your X1200), or is considered too old to be worth implementing the Composite function for (eg. original Matrox Mystique). An unfortunate fact of EXA is that you need to throughly understand XRender's requirements when implementing the Composite function. This is fairly poorly documented. - Jonathan Morton _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
