ChanServ changed the topic of #wayland to: https://wayland.freedesktop.org | Discussion about the Wayland protocol and its implementations, plus libinput
<soreau>
"The compositor will ignore requests it doesn't support."
<soreau>
nothing indicates that it should be an error
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<karenw>
Excellent. Also I'm getting some weirdness trying to support configure_bounds. When maximizing or fullscreening, kwin is sending a configure with sizes larger than the bounds.
<karenw>
If the configure is larger than the most recent configure_bounds, I should ignore the bounds?
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<zamundaaa[m]>
karenw: bounds is only for when you decide the size yourself
<zamundaaa[m]>
It's usually smaller than the fullscreen size
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<karenw>
Fair, I need to track the configure states then. If fullscreen or maximized, I ignore the bounds.
<zamundaaa[m]>
karenw: no, you should ignore the bounds unless the configure size is zero
<zamundaaa[m]>
With interactive resize, the user may resize the window to be larger than a single screen
<zamundaaa[m]>
Preventing them from doing that would be weird
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<karenw>
Hmm... okay. I only choose a size for the initial configure (an arbitary 800x600).
<karenw>
Aren't resizes normally client-driven in wayland? At least when not using xdg_decoration?
<zamundaaa[m]>
No
<zamundaaa[m]>
The client can initiate an interactive resize process, but that's all it does
<karenw>
Fair enough. I have yet to implement my own CSDs. On mutter/weston et. al. I just set_fullscreen() and pray.
<karenw>
So other than something like aspect-ratio correction (which I currently don't do, also seems to be impossible when maximized?) I should always honor the exact size sent by the compositor?
<karenw>
If that size is 0,0, only then do I care about configure_bounds. (which is always the case, before the first time I create a vulkan swapchain)
<soreau>
regarding aspect-ratio, you can attach a buffer with black borders if you so choose, in the event that the compositor requests a size other than your desired ratio
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<karenw>
Pretty much what I'm now writing. (With a slight niggle that I do separate surface_size and buffer_size for buffer_scale and/or fractional_scale)
<karenw>
Oh simple-egl does that too, just elsewhere
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<pq>
emersion, Xaver is right. "Colorspace" tells the monitor how to decode (optical) RGB values. It's not specific to HDR, also wide color gamut SDR monitors exists.
<JEEB>
yea, like if a display was able to tell that it has a display p3 gamut, for example
<pq>
emersion, in the color-mangement protocol we call it the primary color volume primaries.
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<karenw>
wl_fixes got promoted to core? Neat.
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<emersion>
zamundaaa[m]: thanks for filling all of these MRs for my comments!
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<emersion>
zamundaaa[m]: it seems like kwin sends primaries multiplied by 10'000 instead of 1M
<emersion>
(or maybe this has changed since the last xx proto?)
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<zamundaaa[m]>
The xx proto has 10k as the multiplier, yes
<zamundaaa[m]>
My MR to update the protocol has a matching change in the multiplier
<emersion>
where can i find good defaults for luminance, target primaries/luminance/max_cll/max_fall etc?
<mclasen>
all this numerology. magic multipliers :)
<soreau>
I propose that it be renamed to magicpixels protocol
<emersion>
is the "container" terminology pq-approved?
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<zamundaaa[m]>
emersion: the default luminance levels are defined in the protocol, in the `set_luminances` request and the transfer function descriptions
<zamundaaa[m]>
It probably wouldn't hurt to add a description to the transfer function enum that specifies them there
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<emersion>
oh, i see!
<emersion>
yeah, maybe move "The default luminances are" to the transfer_function enum overview?
<emersion>
since it's useful for other messages as well, and the defaults for st2084_pq are there as well
<zamundaaa[m]>
About the container terminology, the protocol calls it "container color space" in one place. Might be worth calling it that in set_primaries too
<zamundaaa[m]>
"Encoding color space" would be another one I find to make sense intuitively. Dunno which one is more technically correct
<emersion>
makes sense!
<Lucretia>
why do cursors keep disappearing?
<Lucretia>
and when calibrating a tablet on kde, it's totally invisble.
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<karenw>
When I touch the screen on KDE, it hides the mouse cursor until I move the pointer again.
<karenw>
I assume that's what you are seeing?
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<Lucretia>
nope
<Lucretia>
when using just the mouse, the cursor disappears and refuses to come back
<Lucretia>
I constantly have to shake it to get it to show and that's after what feels like minutes of trying.
<Lucretia>
this isn't hte only thing, wayland locks up ff all the time
<Lucretia>
I've seen a bug for that
<Lucretia>
and man, does it feel slow, this is a new machine, not a lot spec either.
<Lucretia>
s/lot/low/
<davidre>
Please report to us
<davidre>
as in kde bugs.kde.org
<davidre>
this is nto an issue with the wayland protocol
<Lucretia>
davidre: shouldn't you also see a cursor for pen when calibrating?
<davidre>
I dont know
<Lucretia>
so you can see where you are clicking, pretty sure it did that on x
<Lucretia>
and which product does the bug go under?
<davidre>
kwin, if it's in the wrong place people will move it to the correct one
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