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https://bugs.freedesktop.org/show_bug.cgi?id=5366
------- Additional Comments From [EMAIL PROTECTED] 2005-12-18 04:27 -------
(In reply to comment #3)
> It's been quite a while since I looked at r300, but I suspect that the routing
> of data between vtx and frag programs still isn't quite right.
>
> Do you also see a speedup if you modify r300_state.c::r300_setup_rs_unit to
> route col0 into a fragment program register, even if it isn't read?
>
> You'll also have to modify r300_fragprog.c::init_program to assume that col0
> exists so that the fragment program reads the correct registers.
I cannot really do that. R300_RS_ROUTE_0_COLOR is actually vp result register
number. Although this starts at zero, its assigned at
vof(R300_RS_ROUTE_0_COLOR).
AFAIK, passing undefined values to interpolators is also illegal and will lock
the GPU.
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