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Hardware Based XRender Slower than Software Rendering?

Posted by michael on from the unsolved-mysteries dept.

Neon Spiral Injector writes "Rasterman of Enlightenment fame has finally updated the news page of his personal site. It seems that the behind the scenes work for E is coming along. He is investigating rendering backends for Evas. The default backend is a software renderer written by Raster. Trying to gain a little more speed he ported it to the XRender extension, only to find that it became 20-50 times slower on his NVidia card. He has placed some sample code on this same news page for people to try, and see if this is also experienced on other setups."

2 of 297 comments (clear)

  1. 2D acceleration using OpenGL? by gloth · · Score: 5, Interesting

    He didn't really get too far into that, but it would be interesting to see how feasible it is to do all the 2D rendering using OpenGL, encapsulated by some layer, like his Evas.

    Has anyone done that? Any interesting results? One would think that there's a lot of potential here...

  2. Graphics cards and computation by Amit+J.+Patel · · Score: 5, Interesting

    There has been some work on using graphics cards for computation. The tough part is figuring out how to rephrase your algorithm in terms of what the GPU can handle. You'd expect matrix math to work out but people have tried to implement more interesting algorithms too. :-)

    - Amit