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WindowSerer+LibGUI: Send multiple rects in invalidation/flush messages.

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This patch moves to sending up to 32 rects at a time when coordinating the
painting between WindowServer and its clients. Rects are also merged into
a minimal DisjointRectSet on the server side before painting.

Interactive resize looks a lot better after this change, since we can
usually do all the repainting needed in one go.
This commit is contained in:
Andreas Kling
2019-04-20 17:19:56 +02:00
parent ec365b82d5
commit 7efd61fcf5
10 changed files with 74 additions and 29 deletions
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10
Servers/WindowServer/WSWindow.cpp
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@@ -271,3 +271,13 @@ void WSWindow::set_default_icon()
m_icon = default_window_icon();
m_icon_path = default_window_icon_path();
}
void WSWindow::request_update(const Rect& rect)
{
if (m_pending_paint_rects.is_empty()) {
deferred_invoke([this] (auto&) {
client()->post_paint_message(*this);
});
}
m_pending_paint_rects.add(rect);
}