Index: content/common/gpu/media/gpu_arc_video_service.h |
diff --git a/content/common/gpu/media/gpu_arc_video_service.h b/content/common/gpu/media/gpu_arc_video_service.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..131150c9f94e82991ae2129137f6fd8c561b369c |
--- /dev/null |
+++ b/content/common/gpu/media/gpu_arc_video_service.h |
@@ -0,0 +1,68 @@ |
+// 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 CONTENT_COMMON_GPU_MEDIA_GPU_ARC_VIDEO_SERVICE_H_ |
+#define CONTENT_COMMON_GPU_MEDIA_GPU_ARC_VIDEO_SERVICE_H_ |
+ |
+#include <map> |
+ |
+#include "base/callback.h" |
+#include "base/threading/thread_checker.h" |
+ |
+namespace base { |
+class SingleThreadTaskRunner; |
+class WaitableEvent; |
+} |
+ |
+namespace IPC { |
+struct ChannelHandle; |
+} |
+ |
+namespace content { |
+ |
+// GpuArcVideoService manages life-cycle and IPC message translation for |
+// ArcVideoAccelerator. |
+// |
+// For each creation request from GpuChannelManager, GpuArcVideoService will |
+// create a new IPC channel. |
+class GpuArcVideoService { |
+ public: |
+ class AcceleratorStub; |
+ using CreateChannelCallback = base::Callback<void(const IPC::ChannelHandle&)>; |
+ |
+ // |shutdown_event| should signal an event when this process is about to be |
+ // shut down in order to notify our new IPC channel to terminate. |
+ GpuArcVideoService( |
+ base::WaitableEvent* shutdown_event, |
+ const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner); |
+ |
+ // Upon deletion, all ArcVideoAccelerator will be deleted and the associated |
+ // IPC channels are closed. |
+ ~GpuArcVideoService(); |
+ |
+ // Creates a new accelerator stub. The creation result will be sent back via |
+ // |callback|. |
+ void CreateChannel(const CreateChannelCallback& callback); |
+ |
+ // Removes the reference of |stub| (and trigger deletion) from this class. |
+ void RemoveClient(AcceleratorStub* stub); |
+ |
+ private: |
+ base::ThreadChecker thread_checker_; |
+ |
+ // Shutdown event of GPU process. |
+ base::WaitableEvent* shutdown_event_; |
+ |
+ // GPU io thread task runner. |
+ scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; |
+ |
+ // Bookkeeping all accelerator stubs. |
+ std::map<AcceleratorStub*, scoped_ptr<AcceleratorStub>> accelerator_stubs_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(GpuArcVideoService); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_COMMON_GPU_MEDIA_GPU_ARC_VIDEO_SERVICE_H_ |