[Bug 77412] PBO glDrawPixels fails with MSAA

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Aug 3 06:34:10 PDT 2014


--- Comment #3 from Alexander Monakov <amonakov at gmail.com> ---
On what hardware did you get just 20%?  I'm getting about 3x overall speedup on
IvyBridge (roughly 10s -> 3s run time), plus 10% faster if I change GL_BGRA to
GL_RGBA in the testcase source, otherwise it performs channel swizzle for
temporary texture.

As I understand to make Meta viable for this you'd need to be able to interpret
PBO (linear) as a texture (normally tiled) without intermediate copying.  From
what I know, such capability existed in Mesa some time ago but not anymore.

You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20140803/47eb77cd/attachment.html>

More information about the intel-3d-bugs mailing list