components/mus/public/interfaces/gpu/display_compositor_host.mojom

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module mus.gpu.mojom;

import "components/mus/public/interfaces/gpu/display_compositor.mojom";

// This is a privileged API to be used only by the Mus Window Server.
// There is one Display per accelerated widget. This corresponds to a physical
// display on Chrome OS, and a window on other Chrome platforms.
interface Display {
  // Each client (process) has a unique |client_id| and implements the
  // DisplayClient interface.
  CreateClient(uint32 client_id, DisplayClient& client);
};

interface DisplayHost {
  // TODO(fsamuel): OnBeginFrame needs to take a BeginFrameArgs instance per
  // cc/output/begin_frame_args.h.
  OnBeginFrame();
};

// This is a privileged API to be used only by the Mus Window Server.
// There should be only one DisplayCompositor connection.
interface DisplayCompositor {
  CreateDisplay(int32 accelerated_widget,
                Display& display,
                DisplayHost display_host,
                CompositorFrameSink& sink,
                CompositorFrameSinkClient client);
};