On 11 August 2010 06:35, Robert Bragg <[email protected]> wrote: > On Tue, Aug 10, 2010 at 1:09 PM, Chris Debenham <[email protected]> wrote: >> I have been hitting a problem where when displaying a cluttertext >> 'some' of the characters do not display. (screenshot attached showing >> the problem) >> There doesn't seem to be any pattern to the behaviour - and it only >> occurs for some people. I haven't found anything in common between >> failing systems (ie: distro/libclutter version/graphics drivers) >> If it makes any difference the text being displayed is actually a >> cluttergroup containing 5 black cluttertexts that create an >> outline/shadow and then a white cluttertext over the top of it all. >> When the problem occurs the same letter often disappears in all these >> independent texts (but not always) > > It implies to me that something has gone wrong with the glyph cache. > Internally we maintain a texture with pre-rendered glyphs which we > texture from when drawing your text. Certainly if you see the same > letter disappearing that would imply that glyph has been cleared in > the cache but for some reason Cogl doesn't know about it.
That sounds about right > > Have you tried with Clutter master? Failing that it would be > interesting if you are able to test the 'wip/pango-share-atlas' branch > on clutter-project.org. We are hoping to merge this soon and it > changes how we manage the glyph cache to share the code we use for > texture atlasing. The hardest bit is that I am not seeing the issue myself (I did once - but it went away a day or so later and I have no idea what changed :-) > > In general it sounds a bit too random to give much more insight, its > quite possible its a driver bug. If you are running with mesa perhaps > you can try running with LIBGL_ALWAYS_SOFTWARE=1 in your environment > and see if it fixes the issue. Thanks - I'll ask the users who are hitting this issue to try that > > kind regards, > - Robert > _______________________________________________ clutter-app-devel-list mailing list [email protected] http://lists.clutter-project.org/listinfo/clutter-app-devel-list
