[Mesa-dev] [Bug 101326] gallium/wgl: Allow context creation without prior SetPixelFormat()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101326

--- Comment #2 from frank.richter at gmail.com ---
I'm trying to coerce a Chromium-based browser component to render WebGL using
an llvmpipe Mesa.

At one point during initialization, it creates a short-lived context just to
obtain some function addresses. It wants to create a context on the display DC,
which apparently has no pixel format set - or at least a 'framebuffer' can't be
determined.

If that early context creation fails desktop GL, if requested, won't be used
and features requiring it disabled.

FWIW, Chrome makes use of NVIDIA's desktop GL when forced to do so, presumably
that particular context creation succeeds there.

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