Opengl implementation - codec common code

This change adds the libOpenglCodecCommon, which holds
shared code between the encoder and the decoder parts of the opengl
codec. The library is built as static with both a target version and
a host version.

Change-Id: I163eea8fdb635620e6cde9d1d75c3e7369953213

tools/emulator/opengl/system/OpenglCodecCommon/TcpStream.h

@@ -0,0 +1,50 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#ifndef __TCP_STREAM_H
+#define __TCP_STREAM_H
+
+#include <stdlib.h>
+#include "IOStream.h"
+
+
+class TcpStream : public IOStream {
+public:
+    typedef enum { ERR_INVALID_SOCKET = -1000 } TcpStreamError;
+
+    explicit TcpStream(size_t bufsize = 10000);
+    ~TcpStream();
+    int listen(unsigned short port, bool localhost_only = true, bool reuse_address = true);
+    TcpStream *accept();
+    int connect(const char *hostname, unsigned short port);
+
+    virtual void *allocBuffer(size_t minSize);
+    virtual int commitBuffer(size_t size);
+    virtual const unsigned char *readFully( void *buf, size_t len);
+
+    bool valid() { return m_sock >= 0; }
+    int recv(void *buf, size_t len);
+
+private:
+    int writeFully(const void *buf, size_t len);
+
+private:
+    int m_sock;
+    size_t m_bufsize;
+    unsigned char *m_buf;
+    TcpStream(int sock, size_t bufSize);
+};
+
+#endif