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Date:      Fri, 23 Apr 2021 15:16:26 +0000
From:      bugzilla-noreply@freebsd.org
To:        gecko@FreeBSD.org
Subject:   [Bug 255344] www/firefox: enable HW_COMPOSITING by default
Message-ID:  <bug-255344-21738-FD3mqmPjco@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-255344-21738@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255344

--- Comment #5 from Jan Beich <jbeich@FreeBSD.org> ---
(Legacy) OpenGL compositing for Gtk platforms has been on ice[1] due to many
regressions. WebRender needed[2] OpenGL compositing due to shared code. As
WebRender matured some drivers were qualified[3]. Only Tier1 platforms were
qualified, so BSDs and Solaris which also use Gtk and share widget/compositing
code with Linux were left out. For example, FreeBSD would be[4] detected as
OperatingSystem::Unknown.

HW_COMPOSITING used to show AccelerateLayersByDefault() value but nowadays is
overriden via WEBRENDER_QUALIFIED.

[1] https://hg.mozilla.org/mozilla-central/rev/6e02d48ef122
[2] https://hg.mozilla.org/mozilla-central/rev/89d7853edd64
[3] https://hg.mozilla.org/mozilla-central/rev/f3fcf307ee80
[4]
https://searchfox.org/mozilla-release/rev/d6ba9f5ed372/widget/GfxInfoBase.cpp#312-357

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