emulator: opengl: Support named pipes on Win32

This patch adds support for Win32 named pipes for the communication
channel between the Opengl renderer library and its clients.

Named pipes should be much faster than local TCP sockets on this
platform. Note that by default, TCP sockets are still used. The
emulator needs to call setStreamMode(STREAM_MODE_PIPE) to be able
to use these.

Change-Id: I86d36624cf2b7fdd50f41e1e43c908348dca4657

tools/emulator/opengl/host/libs/libOpenglRender/RenderServer.cpp

@@ -15,7 +15,9 @@
 */
 #include "RenderServer.h"
 #include "TcpStream.h"
-#ifndef _WIN32
+#ifdef _WIN32
+#include "Win32PipeStream.h"
+#else
 #include "UnixStream.h"
 #endif
 #include "RenderThread.h"
@@ -43,9 +45,9 @@ RenderServer *RenderServer::create(int port)
         server->m_listenSock = new TcpStream();
     } else {
 #ifdef _WIN32
-    server->m_listenSock = new TcpStream();
+        server->m_listenSock = new Win32PipeStream();
 #else
-    server->m_listenSock = new UnixStream();
+        server->m_listenSock = new UnixStream();
 #endif
     }