On 03/27/2015 12:49 PM, Ilia Mirkin wrote:
On Fri, Mar 27, 2015 at 2:44 PM, Brian Paul <bri...@vmware.com> wrote:
The Geeks3d GpuTest GiMark test for Windows has several shaders with
#version 330 that don't actually use any 3.30 features. Other shaders in
the test use #version 130. Furthermore, when a context is created, only a
3.0 context is requested. We don't support GL 3.0 w/ 3.30 shaders but if I
override the #version 330 with 130 then everything works fine.
That's incredibly annoying. Well your patch looks like it'll work as
advertised, so
Reviewed-by: Ilia Mirkin <imir...@alum.mit.edu>
But perhaps leave it on the list for a bit in case there are
dissenting opinions on the actual functionality?
Sure, no problem.
The sad reality is that Windows OpenGL apps are pretty sloppy/buggy when
it comes to choosing the right OpenGL context version/profile and shader
versions. We have quite a few work-arounds in our in-house code to
allow these apps to run. If we don't do that, we get bug reports and
negative comments from product reviewers.
The problem is the Windows nvidia/amd/intel drivers are often more lax
than Mesa about version/extension checking. Also, the nvidia/amd/intel
drivers support compat profile with OpenGL 3.2+ so a lot of those apps
don't have any consideration of core vs. compat profile issues. It's an
ongoing headache.
-Brian
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