opengles emulator: Fixed Windows renderer termination

Make the event pump loop in the renderer process we do on Windows
exit when the Framebuffer's subwindow is destroyed.
Fixed TcpStream to close the socket using 'closesocket' on windows,
otherwise the other end of the socket does not sense that the socket
is closed.

+ Use WS_DISABLED to ensure that our GL subwindow doesn't receive
  any input events.

Change-Id: Icb477b3e1d7993a8880acb5e01bc5da29309ae50

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

@@ -91,6 +91,10 @@ void FrameBuffer::finalize(){
         s_egl.eglMakeCurrent(s_theFrameBuffer->m_eglDisplay, NULL, NULL, NULL);
         s_egl.eglDestroySurface(s_theFrameBuffer->m_eglDisplay,s_theFrameBuffer->m_eglSurface);
         s_egl.eglDestroyContext(s_theFrameBuffer->m_eglDisplay,s_theFrameBuffer->m_eglContext);
+        if (s_theFrameBuffer->m_subWin) {
+            destroySubWindow(s_theFrameBuffer->m_subWinDisplay,
+                             s_theFrameBuffer->m_subWin);
+        }
         delete s_theFrameBuffer;
         s_theFrameBuffer = NULL;
     }

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

@@ -38,9 +38,11 @@ EGLNativeWindowType createSubWindow(FBNativeWindowType p_window,
 
     RegisterClass(&wc);
     printf("creating window %d %d %d %d\n",x,y,width,height);
-    EGLNativeWindowType ret = CreateWindow("subWin",
+    EGLNativeWindowType ret = CreateWindowEx(
+                        WS_EX_NOPARENTNOTIFY,  // do not bother our parent window
+                        "subWin",
                         "sub",
-                        WS_CHILD,
+                        WS_CHILD|WS_DISABLED,
                         x,y,width,height,
                         p_window,
                         NULL,
@@ -51,5 +53,5 @@ EGLNativeWindowType createSubWindow(FBNativeWindowType p_window,
 }
 
 void destroySubWindow(EGLNativeDisplayType dis,EGLNativeWindowType win){
-    DestroyWindow(win);
+    PostMessage(win, WM_CLOSE, 0, 0);
 }

tools/emulator/opengl/host/renderer/main.cpp

@@ -140,7 +140,7 @@ int main(int argc, char *argv[])
     //
     // run the server listener loop
     //
-    server->Main(); // never returns
+    server->Main();
 #else
     //
     // on windows we need to handle messages for the
@@ -152,24 +152,15 @@ int main(int argc, char *argv[])
 
     //
     // Dispatch events for the subwindow
+    // During termination of the render server, the FrameBuffer
+    // will be finalized, the Framebuffer subwindow will
+    // get destroyed and the following loop will exit.
     //
     MSG msg;
     HWND hWnd = FrameBuffer::getFB()->getSubWindow();
-    bool done = 0;
-    while(!done) {
-        GetMessage(&msg, hWnd, 0, 0);
+    while( GetMessage(&msg, hWnd, 0, 0) > 0 ) {
         TranslateMessage(&msg);
         DispatchMessage(&msg);
-
-        //
-        // if server thread has exiting
-        // wait for it to exit and done.
-        //
-        if (server->isExiting()) {
-            int exitStatus;
-            server->wait(&exitStatus);
-            done = true;
-        }
     }
 #endif
 

tools/emulator/opengl/shared/OpenglCodecCommon/TcpStream.cpp

@@ -44,7 +44,11 @@ TcpStream::TcpStream(int sock, size_t bufSize) :
 TcpStream::~TcpStream()
 {
     if (m_sock >= 0) {
+#ifdef _WIN32
+        closesocket(m_sock);
+#else
         ::close(m_sock);
+#endif
     }
     if (m_buf != NULL) {
         free(m_buf);