blob: 2f81d97423db1dcdda2fb39141c73b1a2240f373 [file] [log] [blame]
// Copyright 2014 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.
#include <string>
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_sender.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "ui/ozone/ozone_base_export.h"
namespace ui {
// Platform-specific object to support a GPU process host.
// ChromeOS on bare hardware will do display configuration and cursor
// movement from the GPU process. This provides a conduit for the
// messages needed to make this work.
// Under X11, we don't need any GPU messages for display configuration.
// That's why there's no real functionality here: it's purely mechanism
// to support additional messages needed by specific platforms.
class OZONE_BASE_EXPORT GpuPlatformSupportHost {
using GpuHostBindInterfaceCallback =
base::RepeatingCallback<void(const std::string&,
using GpuHostTerminateCallback =
base::OnceCallback<void(const std::string& message)>;
virtual ~GpuPlatformSupportHost();
// Called when the GPU process is spun up.
// This is called from browser IO thread.
virtual void OnGpuProcessLaunched(
int host_id,
scoped_refptr<base::SingleThreadTaskRunner> ui_runner,
scoped_refptr<base::SingleThreadTaskRunner> send_runner,
const base::Callback<void(IPC::Message*)>& sender) = 0;
// Called when the GPU process is destroyed.
// This is called from browser UI thread.
virtual void OnChannelDestroyed(int host_id) = 0;
// Called to handle an IPC message. Note that this can be called from any
// thread.
virtual void OnMessageReceived(const IPC::Message& message) = 0;
// Called when the GPU service is launched.
// Called from the browser IO thread.
virtual void OnGpuServiceLaunched(
scoped_refptr<base::SingleThreadTaskRunner> host_runner,
scoped_refptr<base::SingleThreadTaskRunner> io_runner,
GpuHostBindInterfaceCallback binder,
GpuHostTerminateCallback terminate_callback) = 0;
// create a stub implementation.
OZONE_BASE_EXPORT GpuPlatformSupportHost* CreateStubGpuPlatformSupportHost();
} // namespace ui