Remove ZLib codec support from chromoting host and client.

We were not using ZLIB codec anyway, so there is no reason to keep it around.


Review URL: https://chromiumcodereview.appspot.com/11195029

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@162635 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 75 insertions, 0 deletions

diff --git a/remoting/codec/video_decoder_verbatim.h b/remoting/codec/video_decoder_verbatim.h
new file mode 100644
index 0000000..8c25013
--- /dev/null
+++ b/remoting/codec/video_decoder_verbatim.h
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 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_CODEC_VIDEO_DECODER_VERBATIM_H_
+#define REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "remoting/codec/video_decoder.h"
+
+namespace remoting {
+
+// Video decoder implementations that decodes video packet encoded by
+// VideoEncoderVerbatim. It just copies data from incoming packets to the
+// video frames.
+class VideoDecoderVerbatim : public VideoDecoder {
+ public:
+  virtual ~VideoDecoderVerbatim();
+
+  VideoDecoderVerbatim();
+
+  // VideoDecoder implementation.
+  virtual bool IsReadyForData() OVERRIDE;
+  virtual void Initialize(const SkISize& screen_size) OVERRIDE;
+  virtual DecodeResult DecodePacket(const VideoPacket* packet) OVERRIDE;
+  virtual VideoPacketFormat::Encoding Encoding() OVERRIDE;
+  virtual void Invalidate(const SkISize& view_size,
+                          const SkRegion& region) OVERRIDE;
+  virtual void RenderFrame(const SkISize& view_size,
+                           const SkIRect& clip_area,
+                           uint8* image_buffer,
+                           int image_stride,
+                           SkRegion* output_region) OVERRIDE;
+
+ private:
+  enum State {
+    kUninitialized,
+    kReady,
+    kProcessing,
+    kPartitionDone,
+    kDone,
+    kError,
+  };
+
+  // Helper method. Called from DecodePacket to updated state of the decoder.
+  void UpdateStateForPacket(const VideoPacket* packet);
+
+  // The internal state of the decoder.
+  State state_;
+
+  // Keeps track of the updating rect.
+  SkIRect clip_;
+
+  // The position in the row that we are updating.
+  int row_pos_;
+
+  // The current row in the rect that we are updaing.
+  int row_y_;
+
+  // The region updated that hasn't been copied to the screen yet.
+  SkRegion updated_region_;
+
+  // Size of the remote screen.
+  SkISize screen_size_;
+
+  // The bitmap holding the remote screen bits.
+  scoped_array<uint8> screen_buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(VideoDecoderVerbatim);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_