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https://bugs.freedesktop.org/show_bug.cgi?id=7082
Summary: extended swizzle fails in vertex programs
Product: Mesa
Version: CVS
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
the SWZ opcode is not handled correctly in mesa's tnl module (in
t_vb_arbprogram.c). The results are more or less obvious wrong (for instance use
the swz2.txt test case but use only x/y/z/w and not 0/1), but I can't quite see
how it's supposed to work. It seems strange that in fact somtimes 3 RSW
instructions are generated for a single SWZ, I'd think 2 should be sufficient.
Anyway, it just plain doesn't work.
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