GpuArcVideoService

chrome/gpu/gpu_arc_video_service.h

+// 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.
+
+#ifndef CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_
+#define CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_
+
+#include <map>
+
+#include "base/macros.h"
+#include "components/arc/common/video.mojom.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace gpu {
+struct GpuPreferences;
+}  // namespace gpu
+
+namespace chromeos {
+namespace arc {
+
+// GpuArcVideoService manages life-cycle and IPC message translation for
+// ArcVideoAccelerator.
+//
+// For each creation request from GpuArcVideoServiceHost, GpuArcVideoService
+// will create a new IPC channel.
+class GpuArcVideoService : public ::arc::VideoHost {
+ public:
+  class AcceleratorStub;
+
+  // |request| is mojo interface request of arc::VideoHost.
+  GpuArcVideoService(mojo::InterfaceRequest<::arc::VideoHost> request,
+                     const gpu::GpuPreferences& gpu_preferences);
+
+  // Upon deletion, all ArcVideoAccelerator will be deleted and the associated
+  // IPC channels are closed.
+  ~GpuArcVideoService() override;
+
+  // Removes the reference of |stub| (and trigger deletion) from this class.
+  void RemoveClient(AcceleratorStub* stub);
+
+ private:
+  // arc::VideoHost implementation.
+  void OnRequestArcVideoAcceleratorChannel(
+      uint32_t pid,
+      const OnRequestArcVideoAcceleratorChannelCallback& callback) override;
+
+  base::ThreadChecker thread_checker_;
+
+  // Binding of arc::VideoHost. It also takes ownership of |this|.
+  mojo::StrongBinding<::arc::VideoHost> binding_;
+
+  const gpu::GpuPreferences& gpu_preferences_;
+
+  // Bookkeeping all accelerator stubs.
+  std::map<AcceleratorStub*, scoped_ptr<AcceleratorStub>> accelerator_stubs_;
+
+  DISALLOW_COPY_AND_ASSIGN(GpuArcVideoService);
+};
+
+}  // namespace arc
+}  // namespace chromeos
+
+#endif  // CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_