We don't know which colorspace the profile were created from. We could
set hint to ICC target colorspace, but it would be ambiguous, because it
doesn't say which colorspace were configured in practice.
Additionally on Wayland with all the color management the client side
ICC correction is not supported, because we cannot set pass-through
mode.
Conceptually we should use VK_COLOR_SPACE_PASS_THROUGH_EXT to get
"direct" access to display response, but while this may work on macOS,
on Wayland it means "don't configure csp", instead of "configure to
pass-through", which means colorspace would have to be configured
externally, which is also not possible, see [1].
You can also see [2] for more discussion on the topic.
For now let's not hint any colospace and leave libplacebo in default
selection. Which restores previous status quo. This can be improved in
future, but for now this fixes use of ICC profiles in default mpv
config.
[1] https://gitlab.freedesktop.org/pq/color-and-hdr/-/issues/27
[2] https://github.com/haasn/libplacebo/issues/324Fixes: #16646
Kacper Michajłow
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