[RFC wayland-protocols v3 1/1] unstable: add color management protocol

[Simon Ser]

On Tuesday, March 19, 2019 1:23 PM, Pekka Paalanen <ppaalanen at gmail.com> wrote:
> Removing the initial uncertainty would require quite some more protocol
> and would apply to much more than just color space.

Yeah. There is some overlap between this protocol,
wl_surface.enter/leave and wp_presentation_time. Not sure a new
protocol would bring enough value to be worth it though.

[…]

> "after binding"?
>
> If a client creates a color space object from an ICC profile, there is
> no need to send the ICC file immediately back to the client.
>
> Should sending this event be tied to the request that created this
> object, or should this object have an explicit request to emit this
> event?

Does the client know in advance what the size of the profile will be?

(Maybe this should be an event, and the request to fill a FD a request)

> I think an explicit request would be better because... it is explicit.
> It does not add any roundtrips that are not already there. In the cases
> where a client likely wants to get the ICC file, it has already had to
> create the color space protocol object itself and sending another
> request on the object goes in the same message burst as creating it.