<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Add FP64 support to the i965 shader backends" href="https://bugs.freedesktop.org/show_bug.cgi?id=92760#c36">Comment # 36</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Add FP64 support to the i965 shader backends" href="https://bugs.freedesktop.org/show_bug.cgi?id=92760">bug 92760</a> from <a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> Samuel Iglesias</a> <pre>(In reply to Samuel Iglesias from <a href="show_bug.cgi?id=92760#c35">comment #35</a>) > I found i965 driver is currently running vec4 visitor and generator for > geometry shaders and we have some crashed/failed tests due to its lack of > support for doubles. After enabling scalar GS, piglit shows no regressions. > I forgot to mention we are currently focusing on the scalar backend to fix failed fp64 tests and running the tests on Broadwell (gen8) for now. By enabling scalar GS in Broadwell by default, we would take advantage of our previous work to add support for doubles in the scalar backend. Thanks to that work, scalar GS not only shows no regressions on piglit but also passes the crashed/failed fp64's geometry shader tests we have seen with vec4 backend. Then, my question is if we can enable scalar GS in Broadwell by default or if there are reasons to keep it disabled. > I would like to know if there is a strong reason to disable scalar GS by > default (perhaps I am missing something) because then we would need to add > support for doubles in vec4.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>