| // 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. |
| |
| #ifndef UI_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_HOST_H_ |
| #define UI_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_HOST_H_ |
| |
| #include <string> |
| |
| #include "base/component_export.h" |
| #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" |
| |
| 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 COMPONENT_EXPORT(OZONE_BASE) GpuPlatformSupportHost { |
| public: |
| using GpuHostBindInterfaceCallback = |
| base::RepeatingCallback<void(const std::string&, |
| mojo::ScopedMessagePipeHandle)>; |
| using GpuHostTerminateCallback = |
| base::OnceCallback<void(const std::string& message)>; |
| |
| GpuPlatformSupportHost(); |
| 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, |
| base::RepeatingCallback<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( |
| int host_id, |
| scoped_refptr<base::SingleThreadTaskRunner> host_runner, |
| scoped_refptr<base::SingleThreadTaskRunner> io_runner, |
| GpuHostBindInterfaceCallback binder, |
| GpuHostTerminateCallback terminate_callback) = 0; |
| }; |
| |
| // create a stub implementation. |
| COMPONENT_EXPORT(OZONE_BASE) |
| GpuPlatformSupportHost* CreateStubGpuPlatformSupportHost(); |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_HOST_H_ |