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LibGUI+WindowServer: Coalesce paints and resizes on the client side.

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Only process paint and resize events on the GUI client side if those events
have the latest up-to-date window size. This drastically reduces async
overdraw during interactive resize.
This commit is contained in:
Andreas Kling 2019-04-10 15:39:28 +02:00
parent 0ac55f2c38
commit 55811f233f
5 changed files with 50 additions and 13 deletions
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6
Servers/WindowServer/WSClientConnection.cpp
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@ -438,10 +438,8 @@ void WSClientConnection::handle_request(const WSAPIDidFinishPaintingNotification
auto& window = *(*it).value;
if (!window.has_painted_since_last_resize()) {
if (window.last_lazy_resize_rect().size() == request.rect().size()) {
window.set_has_painted_since_last_resize(true);
WSMessageLoop::the().post_message(window, make<WSResizeEvent>(window.last_lazy_resize_rect(), window.rect()));
}
window.set_has_painted_since_last_resize(true);
WSMessageLoop::the().post_message(window, make<WSResizeEvent>(window.rect(), window.rect()));
}
WSWindowManager::the().invalidate(window, request.rect());
}