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WindowServer: Rewrite damaged region tracking

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Instead of immediately doing rerender of client data and syncing 60 Hz,
we now only keep track of the damaged regions and also do the rerender
step 60 Hz.
This commit is contained in:
Bananymous
2026-04-11 08:26:22 +03:00
parent 4bde088b28
commit 2b97587e9f
3 changed files with 337 additions and 162 deletions
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15
userspace/programs/WindowServer/WindowServer.h
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@@ -65,7 +65,9 @@ public:
private:
void on_mouse_move_impl(int32_t new_x, int32_t new_y);
void mark_pending_sync(Rectangle area);
void merge_damaged_areas();
void add_damaged_area(Rectangle area);
void add_damaged_area_impl(Rectangle area);
bool resize_window(BAN::RefPtr<Window> window, uint32_t width, uint32_t height);
@@ -76,13 +78,6 @@ private:
BAN::ErrorOr<void> append_serialized_packet(const T& packet, int fd);
private:
struct RangeList
{
size_t range_count { 0 };
BAN::Array<Range, 32> ranges;
void add_range(const Range& range);
};
enum class State
{
Normal,
@@ -99,7 +94,9 @@ private:
const int32_t m_corner_radius;
BAN::Vector<RangeList> m_pending_syncs;
static constexpr size_t m_max_damaged_areas = 32;
size_t m_damaged_area_count { 0 };
BAN::Array<Rectangle, m_max_damaged_areas> m_damaged_areas;
// NOTE: same size as framebuffer
BAN::Vector<uint32_t> m_background_image;