[Bug 108805] i965 regressions from EXT_texture_sRGB_R8

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108805

--- Comment #5 from Ian Romanick <idr at freedesktop.org> ---
(In reply to Gert Wollny from comment #2)
> Given that RGB formats are not required to be renderable, the error state 
> GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT should also be legal, and indeed adding
> a check for this latter return value turns the output from "Fail" into
> "Unsupported", so this actually seems to be a bug in the CTS.

No.  If it is a potentially valid configuration that is just not supported by
the implementation, the correct error is GL_FRAMEBUFFER_UNSUPPORTED.  Other
errors are only returned in cases where EVERY implementation must return the
same error.

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