Index: remoting/base/decoder_row_based.h |
diff --git a/remoting/base/decoder_row_based.h b/remoting/base/decoder_row_based.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c226db2697c8913801b8a58ce0226fdea13e10a9 |
--- /dev/null |
+++ b/remoting/base/decoder_row_based.h |
@@ -0,0 +1,75 @@ |
+// Copyright (c) 2010 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_BASE_DECODER_ROW_BASED_H_ |
+#define REMOTING_BASE_DECODER_ROW_BASED_H_ |
+ |
+#include "remoting/base/decoder.h" |
+ |
+namespace remoting { |
+ |
+class Decompressor; |
+ |
+class DecoderRowBased : public Decoder { |
+ public: |
+ virtual ~DecoderRowBased(); |
+ |
+ static DecoderRowBased* CreateZlibDecoder(); |
+ static DecoderRowBased* CreateVerbatimDecoder(); |
+ |
+ // Decoder implementation. |
+ virtual void Reset(); |
+ virtual bool IsReadyForData(); |
+ virtual void Initialize(scoped_refptr<media::VideoFrame> frame, |
+ const gfx::Rect& clip, int bytes_per_src_pixel); |
+ virtual void DecodeBytes(const std::string& encoded_bytes); |
+ virtual UpdateStreamEncoding Encoding() { return encoding_; } |
+ |
+ // TODO(hclam): Should make this into the Decoder interface. |
+ // TODO(ajwong): Before putting into the interface, we should decide if the |
+ // Host should normalize the coordinate system. |
+ void set_reverse_rows(bool reverse) { reverse_rows_ = reverse; } |
+ |
+ private: |
+ DecoderRowBased(Decompressor* decompressor, UpdateStreamEncoding encoding); |
+ |
+ enum State { |
+ kUninitialized, |
+ kReady, |
+ kError, |
+ }; |
+ |
+ // The internal state of the decoder. |
+ State state_; |
+ |
+ // Keeps track of the updating rect. |
+ gfx::Rect clip_; |
+ |
+ // The video frame to write to. |
+ scoped_refptr<media::VideoFrame> frame_; |
+ |
+ // The compression for the input byte stream. |
+ scoped_ptr<Decompressor> decompressor_; |
+ |
+ // The encoding of the incoming stream. |
+ UpdateStreamEncoding encoding_; |
+ |
+ // Number of bytes per pixel from source stream. |
+ int bytes_per_src_pixel_; |
+ |
+ // 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_; |
+ |
+ // True if we should decode the image upside down. |
+ bool reverse_rows_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(DecoderRowBased); |
+}; |
+ |
+} // namespace remoting |
+ |
+#endif // REMOTING_BASE_DECODER_ROW_BASED_H_ |