zlib decompression for chromoting

Using zlib for decompression. Also revised the API and usage of zlib
for compression.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/2815043

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@51785 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 32 insertions, 0 deletions

diff --git a/remoting/base/decompressor_zlib.h b/remoting/base/decompressor_zlib.h
new file mode 100644
index 0000000..b762480
--- /dev/null
+++ b/remoting/base/decompressor_zlib.h
@@ -0,0 +1,32 @@
+// 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_DECOMPRESSOR_ZLIB_H_
+#define REMOTING_BASE_DECOMPRESSOR_ZLIB_H_
+
+#include "base/scoped_ptr.h"
+#include "remoting/base/decompressor.h"
+
+typedef struct z_stream_s z_stream;
+
+namespace remoting {
+
+// A lossless decompressor using zlib.
+class DecompressorZlib : public Decompressor {
+ public:
+  DecompressorZlib();
+  virtual ~DecompressorZlib();
+
+  // Decompressor implementations.
+  virtual bool Process(const uint8* input_data, int input_size,
+                       uint8* output_data, int output_size,
+                       int* consumed, int* written);
+
+ private:
+  scoped_ptr<z_stream> stream_;
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_BASE_DECOMPRESSOR_ZLIB_H_