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LibGfx: Don't allow creating bitmaps whose sizes would overflow
If the area or size_in_bytes calculation for a Gfx::Bitmap would overflow, we now refuse to create such a bitmap and return nullptr. Thanks to @itamar8910 for finding this! :^)
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5 changed files with 62 additions and 21 deletions
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@ -189,8 +189,8 @@ protected:
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private:
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virtual bool is_window() const override final { return true; }
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NonnullRefPtr<Gfx::Bitmap> create_backing_bitmap(const Gfx::Size&);
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NonnullRefPtr<Gfx::Bitmap> create_shared_bitmap(Gfx::BitmapFormat, const Gfx::Size&);
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RefPtr<Gfx::Bitmap> create_backing_bitmap(const Gfx::Size&);
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RefPtr<Gfx::Bitmap> create_shared_bitmap(Gfx::BitmapFormat, const Gfx::Size&);
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void set_current_backing_bitmap(Gfx::Bitmap&, bool flush_immediately = false);
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void flip(const Vector<Gfx::Rect, 32>& dirty_rects);
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void force_update();
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