https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #16 from Pierre Ossman ---
(In reply to comment #14)
> Thanks for the feedback. So it is a precision issue after all. If fglrx
> exhibits the same behavior, there is nothing I can do. I don't know of any
> hardware state which control
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #15 from Erik Faye-Lund ---
(In reply to comment #14)
> Thanks for the feedback. So it is a precision issue after all. If fglrx
> exhibits the same behavior, there is nothing I can do. I don't know of any
> hardware state which contro
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #14 from Marek Ol??k ---
Thanks for the feedback. So it is a precision issue after all. If fglrx
exhibits the same behavior, there is nothing I can do. I don't know of any
hardware state which controls precision of texture addressing.
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #13 from Pierre Ossman ---
Hardly NOTABUG. There is no pixel at 0.5. The pixels are at 0.125, 0.375, 0.625
and 0.875. 0.4 should get rounded to the 0.375 pixel. That's the closest,
not the 0.625 one.
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
Marek Ol??k changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #11 from Andreas Boll 2012-09-12
13:56:46 UTC ---
(In reply to comment #10)
>
> It's so long ago I don't remember the exact details. You can easily figure it
> out though. The test program creates a 4x4 checker board texture and the
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #10 from Pierre Ossman 2012-09-12
13:03:19 UTC ---
(In reply to comment #7)
>
> What is the expected behavior?
It's so long ago I don't remember the exact details. You can easily figure it
out though. The test program creates a 4x4
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #9 from Andreas Boll 2012-09-12
12:34:21 UTC ---
(In reply to comment #8)
> might be fixed with this commit:
> http://cgit.freedesktop.org/mesa/mesa/commit/?id=f44bda17f515c411071ca8744ebd96039d9c583b
I can't see any difference bet
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #11 from Andreas Boll 2012-09-12
13:56:46 UTC ---
(In reply to comment #10)
>
> It's so long ago I don't remember the exact details. You can easily figure it
> out though. The test program creates a 4x4 checker board texture and the
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #10 from Pierre Ossman 2012-09-12
13:03:19 UTC ---
(In reply to comment #7)
>
> What is the expected behavior?
It's so long ago I don't remember the exact details. You can easily figure it
out though. The test program creates a 4x4
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #9 from Andreas Boll 2012-09-12
12:34:21 UTC ---
(In reply to comment #8)
> might be fixed with this commit:
> http://cgit.freedesktop.org/mesa/mesa/commit/?id=f44bda17f515c411071ca8744ebd96039d9c583b
I can't see any difference bet
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #8 from Alex Deucher 2012-09-11 17:23:43 UTC
---
might be fixed with this commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f44bda17f515c411071ca8744ebd96039d9c583b
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #7 from Andreas Boll 2012-09-11
17:12:41 UTC ---
Created attachment 66984
--> https://bugs.freedesktop.org/attachment.cgi?id=66984
captured shader
I have tested your modified fp-tri-c from attachment 32446
with r600g on my rv770 .
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #6 from Pierre Ossman 2012-09-11
13:51:20 UTC ---
I don't have any updated systems right now, so I can't really test. Test
program should still be valid though.
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
Andreas Boll changed:
What|Removed |Added
Component|Drivers/DRI/R600|Drivers/Gallium/r600
--- Comment #5 from
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #8 from Alex Deucher 2012-09-11 17:23:43 UTC ---
might be fixed with this commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f44bda17f515c411071ca8744ebd96039d9c583b
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #7 from Andreas Boll 2012-09-11
17:12:41 UTC ---
Created attachment 66984
--> https://bugs.freedesktop.org/attachment.cgi?id=66984
captured shader
I have tested your modified fp-tri-c from attachment 32446
with r600g on my rv770 .
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #6 from Pierre Ossman 2012-09-11
13:51:20 UTC ---
I don't have any updated systems right now, so I can't really test. Test
program should still be valid though.
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
Andreas Boll changed:
What|Removed |Added
Component|Drivers/DRI/R600|Drivers/Gallium/r600
--- Comment #5 from
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #4 from Alex Deucher 2011-02-28 18:56:24 PST ---
Created an attachment (id=43951)
View: https://bugs.freedesktop.org/attachment.cgi?id=43951
Review: https://bugs.freedesktop.org/review?bug=25871&attachment=43951
possible fix
Does
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #4 from Alex Deucher 2011-02-28 18:56:24 PST
---
Created an attachment (id=43951)
View: https://bugs.freedesktop.org/attachment.cgi?id=43951
Review: https://bugs.freedesktop.org/review?bug=25871&attachment=43951
possible fix
Does
https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #3 from Alex Deucher 2011-02-28 18:27:18 PST ---
For point sampled textures, SQ_TEX_SAMPLER_WORD2_0.MC_COORD_TRUNCATE needs to
be set to 1. The default behavior for texture addressing is to round unless
that bit is set.
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https://bugs.freedesktop.org/show_bug.cgi?id=25871
--- Comment #3 from Alex Deucher 2011-02-28 18:27:18 PST
---
For point sampled textures, SQ_TEX_SAMPLER_WORD2_0.MC_COORD_TRUNCATE needs to
be set to 1. The default behavior for texture addressing is to round unless
that bit is set.
--
Configu
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