iOS Chromoting Client

remoting/ios/bridge/frame_consumer_bridge.h

+// 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 REMOTING_IOS_BRIDGE_FRAME_CONSUMER_BRIDGE_H_
+#define REMOTING_IOS_BRIDGE_FRAME_CONSUMER_BRIDGE_H_
+
+#include <list>
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_vector.h"
+#include "remoting/client/frame_consumer.h"
+#include "remoting/client/frame_producer.h"
+
+#include "remoting/ios/bridge/frame_consumer_bridge_callback.h"
+
+namespace remoting {
+
+// FrameConsumer implementation that draws onto a byte buffer.

[dcaiafa, 2014/03/19 01:14:15]

Description doesn't match functionality.

[aboone, 2014/03/21 16:42:07]

Done.

+class FrameConsumerBridge : public FrameConsumer {
+ public:
+  // The instance does not take ownership of |objc_runtime|.

[dcaiafa, 2014/03/19 01:14:15]

Comment doesn't match signature.

[aboone, 2014/03/21 16:42:07]

Done.

+  explicit FrameConsumerBridge(FrameConsumerBridgeCallback callback);
+
+  // This must be called once before the producer's source size is set.
+  void Initialize(FrameProducer* producer);
+
+  // FrameConsumer implementation.
+  virtual void ApplyBuffer(const webrtc::DesktopSize& view_size,
+                           const webrtc::DesktopRect& clip_area,
+                           webrtc::DesktopFrame* buffer,
+                           const webrtc::DesktopRegion& region,
+                           const webrtc::DesktopRegion& shape) OVERRIDE;
+  virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE;
+  virtual void SetSourceSize(const webrtc::DesktopSize& source_size,
+                             const webrtc::DesktopVector& dpi) OVERRIDE;
+  virtual PixelFormat GetPixelFormat() OVERRIDE;
+
+ private:
+  // Allocates a new buffer of |view_size_|, and tells
+  // the producer to draw onto it.
+  void AllocateBuffer();
+
+  // Frees a frame buffer previously allocated by AllocateBuffer.
+  void FreeBuffer(webrtc::DesktopFrame* buffer);
+
+  // Variables are to be used from the display thread.
+
+  // Used to obtain task runner references and make calls to OBJ_C methods.
+  FrameConsumerBridgeCallback callback_;
+
+  FrameProducer* frame_producer_;
+  webrtc::DesktopSize view_size_;
+
+  // List of allocated image buffers.
+  ScopedVector<webrtc::DesktopFrame> buffers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FrameConsumerBridge);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_IOS_BRIDGE_FRAME_CONSUMER_BRIDGE_H_