<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - glReadPixels on Intel N3700 (Braswell) slower than Raspberry Pi"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99247#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - glReadPixels on Intel N3700 (Braswell) slower than Raspberry Pi"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99247">bug 99247</a>
from <span class="vcard"><a class="email" href="mailto:jason@jlekstrand.net" title="Jason Ekstrand <jason@jlekstrand.net>"> <span class="fn">Jason Ekstrand</span></a>
</span></b>
<pre>(In reply to Pierre Proske from <a href="show_bug.cgi?id=99247#c11">comment #11</a>)
<span class="quote">> Wow!
>
> So without PBO's the app works slightly better but is still pretty slow
> (using glGetTexImage() and RGBA) however when I enable PBO's using RGBA the
> result is blistering! I'm now getting much faster rates than Windows :D :D
>
> If it's useful I could send another trace without the PBO optimisation.</span >
That might be interesting. RGBA should, apart from stalling the GPU, be
reasonably fast even without the PBO. It'd be good to know why it isn't.
<span class="quote">> Otherwise I'm back in the land of the living :)</span >
Glad you're happy! Are you still interested in faster RGB? If not, I'd like
to leave the bug open but mark it as an enhancement so we don't forget RGB is
slow.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>