Any protocol documentation about premultiplied alpha?

Hoosier, Matt Matt.Hoosier at
Wed Sep 29 14:48:11 UTC 2021

I put together .

From: Simon Ser <contact at>
Sent: Wednesday, September 29, 2021 8:28:08 AM
To: Hoosier, Matt
Cc: Pekka Paalanen; wayland-devel at; Carsten Haitzler
Subject: Re: Any protocol documentation about premultiplied alpha?

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On Wednesday, September 29th, 2021 at 15:23, Hoosier, Matt <Matt.Hoosier at> wrote:

> Would anybody be interested in some kind of comment inserted into the
> documentation for wl_buffer that expresses this implicit expectation?

Yeah, I think it would be nice to mention this. But still allow other protocols
to override the default pre-multiplied assumption ("Unless otherwise


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