[Development] State of QtDeclarative (noob question)

Robin Burchell robin+qt at viroteck.net
Fri Dec 23 08:53:26 CET 2011


On Fri, Dec 23, 2011 at 1:20 AM, Holger Hans Peter Freyther
<holger at freyther.de> wrote:
> (gdb) bt
> #0  0xb19d7451 in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
> ... same lib
> #12 0xb19a71b1 in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
> #13 0xb7c6c4f4 in QSGRenderer::draw (this=0x850cff0, shader=0x813fb48,
> g=0x850de84) at
> ../../../qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:713

isn't swrast mesa's slowest fallback "I have no GL" type driver? I'm
pretty sure this isn't going to be all that performant. If you don't
have a GPU, then it might be worthwhile looking into llvmpipe. Mer
(http://www.merproject.org) has been doing this, with some limited
success to date (it seems to not work well on ARM at this point), but
at least on x86, we've seen high framerates with a GL accelerated UI.

hope this helps,

Robin



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