On 11/27/2012 07:47 PM, Marek Olšák wrote:
> HI Chad,
>
> FYI, the core GL support in the GLX backend of waffle and/or piglit
> seems to be broken. All piglit tests that specify the core GL version
> and are run on a driver which cannot create a core GL context (that is
> any open driver except i965), always fail. The tests report
> GLXBadFBConfig and just die. I think the piglit_init function isn't
> even reached.
>
> I don't use EGL.
>
> Marek
Marek,
I tried some experiments with i965 and older versions of Mesa in an
attempt to reproduce your problem, but I can't. In the two experiments
I tried below, the behavior was exactly as expected.
* Test 1: Against i965 from mesa-7.11, which supports only GL 2.1 and no
GLX_ARB_create_context.
> PIGLIT_DEBUG=1 PIGLIT_PLATFORM=glx ./gl-3.1-minmax
piglit: debug: waffle_config_choose failed due to
WAFFLE_ERROR_UNSUPPORTED_ON_PLATFORM: GLX_ARB_create_context is required in
order to request a GL version not equal to the default value 1.0
piglit: info: Failed to create GL 3.1 core context
Mesa: Initializing x86-64 optimizations
Test requires GL version 3.1
PIGLIT: {'result': 'skip' }
* Test 2: Against i965 from mesa-9.0.1, which supports GL 3.1 core, and an
Xserver
without GLX_ARB_create_context.
> PIGLIT_DEBUG=1 PIGLIT_PLATFORM=glx ./gl-3.1-minmax
piglit: debug: waffle_config_choose failed due to
WAFFLE_ERROR_UNSUPPORTED_ON_PLATFORM: GLX_ARB_create_context is required in
order to request a GL version not equal to the default value 1.0
piglit: info: Failed to create GL 3.1 core context
Test requires GL version 3.1
PIGLIT: {'result': 'skip' }
Please run, with PIGLIT_DEBUG=1, the piglit test that's causing you trouble
and send me the output. Hopefully that will be enough for me to identify
and fix the bug.
-Chad
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