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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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25
Servers/WindowServer/WSClientConnection.cpp
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@@ -383,7 +383,7 @@ void WSClientConnection::handle_request(const WSAPISetWindowRectRequest& request
}
auto& window = *(*it).value;
window.set_rect(request.rect());
post_paint_request(window, request.rect());
window.request_update(request.rect());
}
void WSClientConnection::handle_request(const WSAPIGetWindowRectRequest& request)
@@ -477,14 +477,20 @@ void WSClientConnection::handle_request(const WSAPIDestroyWindowRequest& request
post_message(response);
}
void WSClientConnection::post_paint_request(const WSWindow& window, const Rect& rect)
void WSClientConnection::post_paint_message(WSWindow& window)
{
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::Paint;
response.window_id = window.window_id();
response.paint.rect = rect;
response.paint.window_size = window.size();
post_message(response);
WSAPI_ServerMessage message;
message.type = WSAPI_ServerMessage::Type::Paint;
message.window_id = window.window_id();
auto rect_set = window.take_pending_paint_rects();
auto& rects = rect_set.rects();
// FIXME: Break it into multiple batches if needed.
ASSERT(rects.size() <= 32);
message.rect_count = rects.size();
for (int i = 0; i < rects.size(); ++i)
message.rects[i] = rects[i];
message.paint.window_size = window.size();
post_message(message);
}
void WSClientConnection::handle_request(const WSAPIInvalidateRectRequest& request)
@@ -496,7 +502,8 @@ void WSClientConnection::handle_request(const WSAPIInvalidateRectRequest& reques
return;
}
auto& window = *(*it).value;
post_paint_request(window, request.rect());
for (int i = 0; i < request.rects().size(); ++i)
window.request_update(request.rects()[i]);
}
void WSClientConnection::handle_request(const WSAPIDidFinishPaintingNotification& request)