On Fri, Mar 27, 2015 at 3:00 PM, Brian Paul <bri...@vmware.com> wrote: > 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.
Yeah, you can't really hold end users hostage over buggy applications, esp when they work with other (less discerning) drivers. > 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. Right. I think that will keep on being a headache until Mesa starts supporting higher GL compat versions, especially for Windows-targeted software (I guess OSX also doesn't do compat beyond GL2.1 or 3.0). But I'm not well enough versed in the details to be able to suggest a path forward, nor am I going to personally be able to do the work... -ilia _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
