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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - glUniform4fv does not work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106881#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - glUniform4fv does not work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106881">bug 106881</a>
from <span class="vcard"><a class="email" href="mailto:lemody@gmail.com" title="Tapani Pälli <lemody@gmail.com>"> <span class="fn">Tapani Pälli</span></a>
</span></b>
<pre>(In reply to xinghua from <a href="show_bug.cgi?id=106881#c4">comment #4</a>)
<span class="quote">> (In reply to Tapani Pälli from <a href="show_bug.cgi?id=106881#c3">comment #3</a>)
> > IMO this looks like a shader cache issue that got fixed by following commit.
> > Please pull the latest Mesa and test again.
> >
> > --- 8< ---
> > commit e266b320590ebbeadf7c98b0b493d89886534ccb
> > Author: Jordan Justen <<a href="mailto:jordan.l.justen@intel.com">jordan.l.justen@intel.com</a>>
> > Date: Wed Jun 6 01:57:15 2018 -0700
> >
> > mesa/program_binary: add implicit UseProgram after successful
> > ProgramBinary
> >
> > Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ProgramBinary does not switch program correctly when using transform feedback"
href="show_bug.cgi?id=106810">https://bugs.freedesktop.org/show_bug.cgi?id=106810</a>
> > Fixes: b4c37ce2140 "i965: Add ARB_get_program_binary support using
> > nir_serialization"
> > Ref: 3fe8d04a6d6 "mesa: don't always set _NEW_PROGRAM when linking"
> > Ref: c505d6d8522 "mesa: use gl_program for CurrentProgram rather than
> > gl_shader_program"
> > Signed-off-by: Jordan Justen <<a href="mailto:jordan.l.justen@intel.com">jordan.l.justen@intel.com</a>>
> > Reviewed-by: Plamena Manolova <<a href="mailto:plamena.manolova@intel.com">plamena.manolova@intel.com</a>>
> > Reviewed-by: Timothy Arceri <<a href="mailto:tarceri@itsqueeze.com">tarceri@itsqueeze.com</a>>
>
> Hi, Tapani, Thank you for your reply. I had tested this case again, the
> patch could resolve this issue.
> Could you give our more information about the root-cause in mesa, thank you.</span >
Chrome browser implements a shader program cache using ARB_get_program_binary,
we had a bug in program binary code. Loading new binary was not binding the
shaders of the binary in to use (so old ones were still used). This is now
fixed.</pre>
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