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Add client-side double buffering of window backing stores.

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This prevents flicker and looks rather good. The main downside is that
resizing gets even more sluggish. That's the price we pay for now.
This commit is contained in:
Andreas Kling
2019-03-17 04:23:54 +01:00
parent 2ac4f54724
commit 4e451c1e92
12 changed files with 95 additions and 39 deletions
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2
WindowServer/WSMessageLoop.cpp
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@@ -321,7 +321,7 @@ void WSMessageLoop::on_receive_from_client(int client_id, const WSAPI_ClientMess
post_message(client, make<WSAPIGetWindowBackingStoreRequest>(client_id, message.window_id));
break;
case WSAPI_ClientMessage::Type::SetWindowBackingStore:
post_message(client, make<WSAPISetWindowBackingStoreRequest>(client_id, message.window_id, message.backing.shared_buffer_id, message.backing.size, message.backing.bpp, message.backing.pitch, message.backing.has_alpha_channel));
post_message(client, make<WSAPISetWindowBackingStoreRequest>(client_id, message.window_id, message.backing.shared_buffer_id, message.backing.size, message.backing.bpp, message.backing.pitch, message.backing.has_alpha_channel, message.backing.flush_immediately));
break;
case WSAPI_ClientMessage::Type::SetGlobalCursorTracking:
post_message(client, make<WSAPISetGlobalCursorTrackingRequest>(client_id, message.window_id, message.value));