[Bug 2377] Polygon stipple broken.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=2377

--- Comment #7 from Roland Scheidegger <sroland at vmware.com> ---
Looks to me like the offsets for the stipple pattern are wrong.
These are set in r200UpdateViewportOffset - which has no callers. I noted this
in bug 57842, and tried to address it there though the patch probably wasn't
really right in any case, but you could try that as a starting point.
(I'm not sure though if actually we don't also need to take viewport into
account for the offsets? Maybe not though. I'm pretty sure though stippling
also additionally would be broken for fbo's (but certainly should go unnoticed
by this test), as the code does as the comment says, always invert the
stippling pattern, and the y offset is also always calculated taking the window
height into account, and I strongly suspect both aren't right for fbos.)

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