On Wed, May 19, 2010 at 3:58 PM, bugzilla-daemon@freedesktop.org wrote:
https://bugs.freedesktop.org/show_bug.cgi?id=27901
--- Comment #4 from Alain Perrot alain.perrot@gmail.com 2010-05-19 15:58:12 PDT --- (In reply to comment #3)
Alain,
Okay, The patch I just posted might fix this bug. It doesn't cause any additional errors in piglit either. I think its working right with http://github.com/jckarter/hello-gl-ch3 too. Of course I have only tested it on my RadeonHD 3100 and its my first attempt at r600 assembly so let me know if it works for you.
Note: it could probably be done so its faster but I'm still not to sure on how everything works yet in the software
Conn
Thanks for your help.
Unfortunately, your patch does not fix the cos/sin functions (at least on my Radeon HD 3870 / RV670). The hello-gl-ch3 example works better but still not as expected, you can compare with Mesa software rendering.
I tried to play with your patch to make it work without success for now. A note is that there may be a mistake on the last operand to the CNDGT instruction :
- setaddrmode_PVSSRC(&(pAsm->S[2].src), ADDR_ABSOLUTE);
- pAsm->S[1].src.rtype = DST_REG_TEMPORARY;
- pAsm->S[1].src.reg = tmp2;
- setswizzle_PVSSRC(&(pAsm->S[2].src), SQ_SEL_X);
should probably be :
- setaddrmode_PVSSRC(&(pAsm->S[2].src), ADDR_ABSOLUTE);
- pAsm->S[2].src.rtype = DST_REG_TEMPORARY;
- pAsm->S[2].src.reg = tmp2;
- setswizzle_PVSSRC(&(pAsm->S[2].src), SQ_SEL_X);
But this update does not make the cos/sin functions work.
I will try again tomorrow.
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Alain,
Okay I'll look at it some more tonight. At least I know I'm on the right track. Thanks for testing.
Conn