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Rework the rendering model so that clients instantiate backing stores.

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This makes interactive resizing work a lot better, althought it's still not
perfect. There are still glitches and unpleasant flashes of zeroed memory.
This commit is contained in:
Andreas Kling 2019-02-20 21:59:13 +01:00
parent e0b81ee4c9
commit fa02d2a39b
17 changed files with 185 additions and 46 deletions
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11
WindowServer/WSWindow.h
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@ -55,7 +55,8 @@ public:
virtual void on_message(WSMessage&) override;
GraphicsBitmap* backing() { return m_backing.ptr(); }
GraphicsBitmap* backing_store() { return m_backing_store.ptr(); }
void set_backing_store(RetainPtr<GraphicsBitmap>&& backing_store) { m_backing_store = move(backing_store); }
void set_global_cursor_tracking_enabled(bool);
bool global_cursor_tracking() const { return m_global_cursor_tracking_enabled; }
@ -63,8 +64,11 @@ public:
bool has_alpha_channel() const { return m_has_alpha_channel; }
void set_has_alpha_channel(bool value) { m_has_alpha_channel = value; }
void set_has_painted_since_last_resize(bool b) { m_has_painted_since_last_resize = b; }
void set_last_lazy_resize_rect(const Rect& rect) { m_last_lazy_resize_rect = rect; }
Rect last_lazy_resize_rect() const { return m_last_lazy_resize_rect; }
bool has_painted_since_last_resize() const { return m_has_painted_since_last_resize; }
void set_has_painted_since_last_resize(bool b) { m_has_painted_since_last_resize = b; }
// For InlineLinkedList.
// FIXME: Maybe make a ListHashSet and then WSWindowManager can just use that.
@ -81,7 +85,8 @@ private:
bool m_has_alpha_channel { false };
bool m_has_painted_since_last_resize { false };
WSMenu* m_menu { nullptr };
RetainPtr<GraphicsBitmap> m_backing;
RetainPtr<GraphicsBitmap> m_backing_store;
int m_window_id { -1 };
float m_opacity { 1 };
Rect m_last_lazy_resize_rect;
};