services/viz/privileged/mojom/viz_main.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 viz.mojom;

import "components/discardable_memory/public/mojom/discardable_shared_memory_manager.mojom";
import "services/network/public/mojom/tcp_socket.mojom";
import "services/viz/public/mojom/compositing/compositing_mode_watcher.mojom";
import "services/viz/privileged/mojom/compositing/frame_sink_manager.mojom";
import "services/viz/privileged/mojom/gl/gpu_host.mojom";
import "services/viz/privileged/mojom/gl/gpu_service.mojom";
import "ui/gfx/mojom/font_render_params.mojom";

struct FrameSinkManagerParams {
  // An id that changes for each viz process restart.
  uint32 restart_id;

  // Indicates whether CompositorFrames should activate after the deadline
  // below passes.
  bool use_activation_deadline = true;

  // Default number of frames to CompositorFrame activation deadline.
  uint32 activation_deadline_in_frames = 4;

  // Host to viz interface.
  FrameSinkManager& frame_sink_manager;

  // Viz to host interface.
  FrameSinkManagerClient frame_sink_manager_client;
};

struct VizDevToolsParams {
  // Socket for viz devtools server.
  network.mojom.TCPServerSocket server_socket;

  // Port the devtools server socket is bound to.
  uint16 server_port;
};

// This is the primordial interface used to (re)start the viz services.
interface VizMain {
  CreateFrameSinkManager(FrameSinkManagerParams params);

  CreateGpuService(pending_receiver<GpuService> gpu_service,
                   pending_remote<GpuHost> gpu_host,
                   discardable_memory.mojom.DiscardableSharedMemoryManager discardable_memory_manager,
                   handle<shared_buffer>? activity_flags,
                   gfx.mojom.SubpixelRendering subpixel_rendering);

  // The viz devtools server is for use by developers to observe the
  // FrameSinkManager in the viz compositor. This is only called if the flag
  // --enable-viz-devtools is used.
  CreateVizDevTools(VizDevToolsParams params);
};