<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Jan 20, 2017 at 10:26 AM, Ilia Mirkin <span dir="ltr"><<a href="mailto:imirkin@alum.mit.edu" target="_blank">imirkin@alum.mit.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Fri, Jan 20, 2017 at 1:25 PM, Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> wrote:<br>
> On Fri, Jan 20, 2017 at 10:16 AM, Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>> wrote:<br>
>><br>
>> What level of support would a driver need to provide? Can this just be<br>
>> enabled for all drivers? [This seems like largely a driver-side<br>
>> feature rather than hardware-based.]<br>
><br>
><br>
> My understanding is that we should just expose this extension on all<br>
> hardware that supports ETC1. Obviously, if it doesn't support ETC1, you<br>
> don't get this extension. :-)<br>
<br>
</span>Isn't ETC1 required for ES1 and ES2? If not, ignore me.</blockquote><div><br></div><div>I just looked at the specs. It's required starting with ES 3.0. <br></div></div></div></div>