[Mesa-dev] [PATCH shaderdb 1/2] run: fall back to v3.1 core ctx if v3.2 fails

[Rob Clark]

On Sun, Jan 28, 2018 at 11:24 AM, Rob Clark <robdclark at gmail.com> wrote:
> On Sat, Jan 27, 2018 at 9:07 PM, Matt Turner <mattst88 at gmail.com> wrote:
>> On Sat, Jan 27, 2018 at 4:08 PM, Rob Clark <robdclark at gmail.com> wrote:
>>> On Sat, Jan 27, 2018 at 7:02 PM, Matt Turner <mattst88 at gmail.com> wrote:
>>>> On Sat, Jan 27, 2018 at 10:06 AM, Rob Clark <robdclark at gmail.com> wrote:
>>>>> Signed-off-by: Rob Clark <robdclark at gmail.com>
>>>>> ---
>>>>>  run.c | 12 ++++++++++++
>>>>>  1 file changed, 12 insertions(+)
>>>>>
>>>>> diff --git a/run.c b/run.c
>>>>> index 69fe23d..20a0a6a 100644
>>>>> --- a/run.c
>>>>> +++ b/run.c
>>>>> @@ -520,6 +520,18 @@ main(int argc, char **argv)
>>>>>      };
>>>>>      EGLContext core_ctx = eglCreateContext(egl_dpy, cfg, EGL_NO_CONTEXT,
>>>>>                                             attribs);
>>>>> +
>>>>> +    if (core_ctx == EGL_NO_CONTEXT) {
>>>>> +        static const EGLint attribs_31[] = {
>>>>> +            EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR,
>>>>> +            EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
>>>>
>>>> Profiles are only introduced in v3.2. I can't see how this can work.
>>>>
>>>
>>> entirely possible by accident.. not quite sure when shader-db started
>>> asking for 3.2 core profile, but that broke things for freedreno (and
>>> this patch "fixed" things)
>>
>> Must have never worked. run.c created core profiles from its inception.
>
> Hmm, I could be wrong then.. I *thought* glsl 140 shaders worked at some point.
>
> So then, how *does* one create a 3.1 core context?  Since atm compat
> context only exposes 3.0.
>

Hmm, ok, actually removing those two lines might actually be working.
But from somewhere (libepoxy?) I'm getting an error "Couldn't find
current GLX or EGL context."..

BR,
-R