I would like to write a 3D program on XCB and I would like to put my "render_frame" function into the frame throttle callback. However, I don't know what is the frame throttle callback in XCB. Is there any equivalent of “WM_PAINT”(Win32) / “wl_surface::frame”(wayland) in XCB?
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You might be looking for the Present extension. Google just gave me https://cgit.freedesktop.org/xorg/proto/presentproto/tree/presentproto.txt, but this describes version 1.0 of the extension. The current version is 1.2, so somewhere there should be a newer documentation. I do not know what the additions since version 1.0 are and whether you need them.
Uli Schlachter
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I don't know what is the frame throttle callback in XCB – Hanetaka Chou Mar 21 '20 at 08:45
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Is there any equivalent of “WM_PAINT”(Win32) / “wl_surface::frame”(wayland) in XCB? – Hanetaka Chou Mar 21 '20 at 08:47
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Yes, the Present extension provides events for that. – Uli Schlachter Mar 21 '20 at 08:50
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Well, and since I have not said so explicitly yet: Core X11 does not have anything like that. – Uli Schlachter Mar 21 '20 at 08:50
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How to use that extension by libXCB? – Hanetaka Chou Mar 21 '20 at 11:04