Re: Bad Xephyr OpenGL performance
I opened a t.m.o thread asking a similar question a few days ago: http://talk.maemo.org/showthread.php?t=35790 I believe _no one_ is really getting accelerated GL in Xephyr+SDK. I'm not getting any acceleration (unless I use VMGL). No one I asked to in the Barcelona Long Weekend had accelerated GL in Xephyr+SDK either. I'd say the shipped libGL is the mesa sw-only one. Though, someone in that tmo thread just said he has accelerated GL, so... maybe only super-recent builds of Xephyr get indirect accelerated GLX? Btw, 1500fps in glxgears is hardly accelerated OpenGL these days, which only adds to my suspicions. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Bad Xephyr OpenGL performance
On Mon, Dec 7, 2009 at 3:01 PM, Murray Cumming murr...@murrayc.com wrote: Can someone enlighten me, ideally with bug report URLs? Doesn't anybody know? I might be completely off with this, but glxinfo seems to indicate xephyr is not hw accelerated. On root X server (on my Karmic) I get: OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) 965Q GEM 20090712 2009Q2 RC3 x86/MMX/SSE2 And for xephyr: OpenGL vendor string: Mesa Project OpenGL renderer string: Software Rasterizer My xephyr evocation is: Xephyr :2 -host-cursor -screen 800x480x16 -dpi 96 -ac -extension Composite -- Ville M. Vainio http://tinyurl.com/vainio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Bad Xephyr OpenGL performance
Everyone knows that OpenGL (Accelerated 3D) performance in Xephyr (on the host PC) is bad, so you only see the smooth Maemo effects when running on an actual device. But nobody I ask seems to know _why_. It's maybe only a problem on Intel graphics hardware, but again, nobody I ask knows why. I wonder if it's related to specific effects that Maemo uses, because the simple glxgears demo (in the mesa tarball) happily gets me around 1500 fps, or around 700fps using the -fullscreen option. Can someone enlighten me, ideally with bug report URLs? -- murr...@murrayc.com www.murrayc.com www.openismus.com ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Bad Xephyr OpenGL performance
On Thu, 2009-12-03 at 18:53 +0800 Murray Cumming wrote: Everyone knows that OpenGL (Accelerated 3D) performance in Xephyr (on the host PC) is bad, so you only see the smooth Maemo effects when running on an actual device. But nobody I ask seems to know _why_. It's maybe only a problem on Intel graphics hardware, but again, nobody I ask knows why. I wonder if it's related to specific effects that Maemo uses, because the simple glxgears demo (in the mesa tarball) happily gets me around 1500 fps, or around 700fps using the -fullscreen option. How about a clutter application in Xephyr? Maybe it helps locate the problem in this way. Can someone enlighten me, ideally with bug report URLs? -- Roger WANG ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
