ChanServ changed the topic of #wayland to: https://wayland.freedesktop.org | Discussion about the Wayland protocol and its implementations, plus libinput | register your nick to speak
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<smallville7123> does wayland handle process bitness when sending and recving data
<smallville7123> eg 64-bit server and 32-bit client, or 32-bit server and 64-bit client
<smallville7123> and how should clients/servers handle such?
<mstoeckl> the protocol does not send or otherwise depend on pointer sizes; i.e, integer message arguments are always 32 bit. See https://wayland.freedesktop.org/docs/html/ch04.html#sect-Protocol-Wire-Format
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<emersion> the wire protocol endianness is the host's
<smallville7123> what about custom data?
<emersion> same thing
<emersion> arrays of uint for xdg-shell states use that for instance
<smallville7123> hmm
<smallville7123> what if 64-bit data is to be communicated?
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<smallville7123> eg, data containing long and such
<DemiMarie> Split it
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<emersion> the array is opaque
<emersion> the protocol XML doesn't define what's in it, the text does
<emersion> 64-bit types aren't supported by the protocol
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<smallville7123> ok
<bl4ckb0ne> why would you need 64 bit data
<smallville7123> for communicating 64 bit data between client and server
<bl4ckb0ne> isnt 32 bit enough?
<smallville7123> would we just use shm for all communication between client and server?
<smallville7123> or would it be same regardless if using shm or socket
<smallville7123> (tho for socket you would probs need to serialize to correct length for recieving on other side)
<smallville7123> idk, im lost
<bl4ckb0ne> you can send a socket fd and push data through it
<smallville7123> yes
<smallville7123> im probs just overthinking, cus wayland can communicate custom data but both server and clients can be 32-bit and 64-bit independantly
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<kennylevinsen> 32 vs 64 bit arechitecture or process type has no effect on wire protocols
<kennylevinsen> *architecture
<kennylevinsen> Wire protocols are just sequences of bytes. They can use 32 bit, 64 bit, 72 bit, 256 bit, or whatever other type they want. Wayland only uses 32 bit, no matter what you run on.
<bl4ckb0ne> 72 bits sounds cursed
<kennylevinsen> be glad I spared you of the thought of 65 bit types
<bl4ckb0ne> the horror
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<LaserEyess> a long time ago I was asking about the progress of HDR, and one thing that was mentioned was updating the drm uapi to do HDR per-plane and not per connector (crtc?)
<LaserEyess> is that a real thing or did I just imagine it, and also, is there any progress toward that? Searching the mailing list didn't really yield interesting results
<LaserEyess> hm, apparently it was in amd-gfx and not dri-devel https://lists.freedesktop.org/archives/amd-gfx/2021-April/062550.html
<LaserEyess> seems to be no progress afaict
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<ngortheone> wayland experts: please advice with the following bug/behaviour in FLTK. Submenus(dropdowns) are only opened if they intersect with the main window. There is a video that shows what I mean here https://github.com/fltk/fltk/issues/613#issuecomment-1365234462
<ngortheone> fltk maintainers are not wayland experts and I am the same, feels like we just run into silly bugs due to lack of knowledge
<ngortheone> cc emersion kennylevinsen
<bl4ckb0ne> iirc thats a client error to draw out of bounds of the toplevel
<kennylevinsen> ngortheone: please don't CC randomly
<ngortheone> sorry, who should this question be best addressed to?
<kennylevinsen> but the issue is likely that the second popup is attempted created from the top level (and thus out of bounds) when it should be a child of the first popup
<kennylevinsen> you are asking a general question, it should not be addressed to anyone
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<kennylevinsen> ngortheone: ^
* ngortheone bows
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