http://bugs.freedesktop.org/show_bug.cgi?id=17800





--- Comment #1 from Brian Paul <[EMAIL PROTECTED]>  2008-10-06 11:22:45 PST ---
It's possible for line rasterization to generate fragments beyond the window
bounds (esp. for wide lines), but they should be clipped in
_swrast_write_rgba_span(), see the call to clip_span().

Could you check that clip_span() is getting called when drawing lines?  Also,
you might try to enable the debug code at line 1283 if you're using a non-debug
build of Mesa.

Otherwise, could I get a copy of your program to test?


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