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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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2
SharedGraphics/DisjointRectSet.h
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@ -11,6 +11,8 @@ public:
void add(const Rect&);
bool is_empty() const { return m_rects.is_empty(); }
void clear() { m_rects.clear(); }
void clear_with_capacity() { m_rects.clear_with_capacity(); }
const Vector<Rect, 32>& rects() const { return m_rects; }