I can confirm those results on the IGP on my M4A78T-E. I can see the
GL_EXT_transform_feedback in glxinfo.
$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RS780
OpenGL version string: 2.1 Mesa 9.1-devel (git-399a03f)
OpenGL shading language version string: 1.30
3.5.4-gentoo #6 SMP x86_64 GNU/Linux
$ ./ext_transform_feedback-position -auto
Testing BindBufferBase.
Testing readback.
Buffer[0]: 0.765430, Expected: -0.687500
Buffer[1]: 0.765430, Expected: -0.375000
Buffer[2]: 0.765430, Expected: 0.000000
Buffer[3]: 0.765430, Expected: 1.000000
Buffer[4]: 0.765430, Expected: -0.687500
Buffer[5]: 0.765430, Expected: 0.250000
Buffer[6]: 0.765430, Expected: 0.000000
Buffer[7]: 0.765430, Expected: 1.000000
Buffer[8]: 0.765430, Expected: -0.375000
Buffer[9]: 0.765430, Expected: -0.375000
Buffer[10]: 0.765430, Expected: 0.000000
Buffer[11]: 0.765430, Expected: 1.000000
Buffer[12]: 0.765430, Expected: -0.687500
Buffer[13]: 0.765430, Expected: 0.250000
Buffer[14]: 0.765430, Expected: 0.000000
Buffer[15]: 0.765430, Expected: 1.000000
Buffer[16]: 0.765430, Expected: -0.375000
Buffer[17]: 0.765430, Expected: 0.250000
Buffer[18]: 0.765430, Expected: 0.000000
Buffer[19]: 0.765430, Expected: 1.000000
Buffer[20]: 0.765430, Expected: -0.375000
Buffer[21]: 0.765430, Expected: -0.375000
Buffer[22]: 0.765430, Expected: 0.000000
Buffer[23]: 0.765430, Expected: 1.000000
PIGLIT: {'result': 'fail' }
Best regards
On 09/25/12 13:51, Aaron Watry wrote:
>From a daily quental build on my 780G motherboard's IGP:
ubuntu@ubuntu:~/src$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RS780
OpenGL version string: 2.1 Mesa 9.0-devel
OpenGL shading language version string: 1.30
OpenGL extensions:
ubuntu@ubuntu:~/src$ glxinfo | grep 'GL_EXT_transform_feedback'
GL_ARB_transform_feedback_instanced, GL_EXT_transform_feedback,
ubuntu@ubuntu:~/src$ uname -a
Linux ubuntu 3.5.0-15-generic #23-Ubuntu SMP Mon Sep 24 20:37:06 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ubuntu:~/src/piglit/bin$ ./ext_transform_feedback-position -auto
Testing BindBufferBase.
Testing readback.
Buffer[0]: 0.765430, Expected: -0.687500
Buffer[1]: 0.765430, Expected: -0.375000
Buffer[2]: 0.765430, Expected: 0.000000
Buffer[3]: 0.765430, Expected: 1.000000
Buffer[4]: 0.765430, Expected: -0.687500
Buffer[5]: 0.765430, Expected: 0.250000
Buffer[6]: 0.765430, Expected: 0.000000
Buffer[7]: 0.765430, Expected: 1.000000
Buffer[8]: 0.765430, Expected: -0.375000
Buffer[9]: 0.765430, Expected: -0.375000
Buffer[10]: 0.765430, Expected: 0.000000
Buffer[11]: 0.765430, Expected: 1.000000
Buffer[12]: 0.765430, Expected: -0.687500
Buffer[13]: 0.765430, Expected: 0.250000
Buffer[14]: 0.765430, Expected: 0.000000
Buffer[15]: 0.765430, Expected: 1.000000
Buffer[16]: 0.765430, Expected: -0.375000
Buffer[17]: 0.765430, Expected: 0.250000
Buffer[18]: 0.765430, Expected: 0.000000
Buffer[19]: 0.765430, Expected: 1.000000
Buffer[20]: 0.765430, Expected: -0.375000
Buffer[21]: 0.765430, Expected: -0.375000
Buffer[22]: 0.765430, Expected: 0.000000
Buffer[23]: 0.765430, Expected: 1.000000
PIGLIT: {'result': 'fail' }
Regards,
Aaron Watry
2012/9/24 Marek Ol??k <mar...@gmail.com> <mar...@gmail.com>:
Hi,
would somebody with an RS780 be so kind as to test and see if
transform feedback (GL3.0 feature) works for him with r600g?
If the GL_EXT_transform_feedback extension is not exposed, you need a
newer version of kernel and/or Mesa.
To test transform feedback, run this in the piglit/bin directory:
./ext_transform_feedback-position -auto
You can get piglit here: http://cgit.freedesktop.org/piglit/
I have a fix for broken transform feedback on RS880. I just need to
know if RS780 is broken in the same way. There's a pretty high
probability that if it's broken, the cause is the same as on RS880.
Thanks.
Marek
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