<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Sep 19, 2017 at 7:39 AM, Lionel Landwerlin <span dir="ltr"><<a href="mailto:lionel.g.landwerlin@intel.com" target="_blank">lionel.g.landwerlin@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_-2643635611682878496moz-cite-prefix">On 16/09/17 00:06, Jason Ekstrand
wrote:<br>
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<div class="gmail_quote">On Fri, Sep 15, 2017 at 7:11 AM,
Lionel Landwerlin <span dir="ltr"><<a href="mailto:lionel.g.landwerlin@intel.com" target="_blank">lionel.g.landwerlin@intel.com</a><wbr>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This
change introduce the concept of planes for image &
views. It<br>
matches the planes available in new formats.<br>
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We also refactor depth & stencil support through the
usage of planes<br>
for the sake of uniformity. In the backend
(genX_cmd_buffer.c) we have<br>
to take some care though with regard to auxilliary
surfaces.<br>
Multiplanar color buffers can have multiple auxilliary
surfaces but<br>
depth & stencil share the same HiZ one (only store in
the depth<br>
plane).<br>
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<div>Not really. HiZ has nothing to do with stencil, it's
just for depth compression. I think, in principal, I like
splitting things out into a plane array better. I never
did like the way we special-cased depth+stencil.<br>
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Oh, maybe I dreamed that...<br>
Isn't there a requirement to put the depth & stencil into the
same buffer? Or were we just doing that to same some space?<br>
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</blockquote></div></div><div class="gmail_extra"><br></div><div class="gmail_extra">Nope. They can be disjoint (and are in i965). I've been tempted to add an extension to let people bind them to separate memory if they'd like.</div><div class="gmail_extra"><br></div><div class="gmail_extra">--Jason<br></div></div>