xserver: Branch 'master' - 11 commits

[Jeremy Huddleston Sequoia]

On Nov 4, 2013, at 10:15, Ian Romanick <idr at freedesktop.org> wrote:

> On 11/02/2013 10:09 AM, Jeremy Huddleston Sequoia wrote:
>> Why does this now require mesa 9.2.0? >= 9.0 doesn't build on OS X,
>> and I haven't had time to address the issue in mesa. I'm wondering if I
>> can just revert this and keep the old requirement for now since this
>> change seems to be related just to dri3 (which doesn't affect XQuartz
>> anyways).
>> 
>> -LIBGL="gl >= 7.1.0"
>> +LIBGL="gl >= 9.2.0"
> 
> This has nothing to do with DRI3.  It has to do with floating point
> configs for pbuffers in DRI2.  Mesa 9.2 is required because that is the
> version that adds __DRI_ATTRIB_FLOAT_BIT and
> __DRI_ATTRIB_UNSIGNED_FLOAT_BIT to dri_interface.h.  See Mesa commit
> c37c367.
> 
> If you'd like to submit a patch that will allow the server to gracefully
> disable GLX_ARB_fbconfig_float when the version of dri_interface.h is
> too old (or just stub it out for XQuartz), I'd be happy to review it.

Patch is OTW.  It also fixes a bug in configure.ac in that the GLX section checks if DRI2 == "yes" before DRI2 == "auto" is resolved to "yes".

--Jeremy

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