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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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5
Servers/WindowServer/WSWindow.h
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@ -7,6 +7,7 @@
#include <LibCore/CObject.h>
#include <WindowServer/WSWindowType.h>
#include <WindowServer/WSWindowFrame.h>
#include <SharedGraphics/DisjointRectSet.h>
class WSClientConnection;
class WSCursor;
@ -127,6 +128,9 @@ public:
const WSCursor* override_cursor() const { return m_override_cursor.ptr(); }
void set_override_cursor(RetainPtr<WSCursor>&& cursor) { m_override_cursor = move(cursor); }
void request_update(const Rect&);
DisjointRectSet take_pending_paint_rects() { return move(m_pending_paint_rects); }
// For InlineLinkedList.
// FIXME: Maybe make a ListHashSet and then WSWindowManager can just use that.
WSWindow* m_next { nullptr };
@ -160,4 +164,5 @@ private:
WSWindowFrame m_frame;
Color m_background_color { Color::LightGray };
unsigned m_wm_event_mask { 0 };
DisjointRectSet m_pending_paint_rects;
};