emulator opengl: OpenglSystemCommon library shared between gralloc/EGL/GLES.

This is a static library of utilities shared between the emulator opengl
system components, gralloc, EGL, GLES. In includes host connection functionality
and access to OpenGL TLS info.

Change-Id: Ic63a6f7384a2035308ca6d316c747f0e6c6f2ef3

tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h

@@ -0,0 +1,33 @@
+/*
+* 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 _THREAD_INFO_H
+#define _THREAD_INFO_H
+
+#include "HostConnection.h"
+
+struct EGLContext_t;
+
+struct EGLThreadInfo
+{
+    EGLThreadInfo() : currentContext(NULL), hostConn(NULL) {}
+
+    EGLContext_t *currentContext;
+    HostConnection *hostConn;
+};
+
+
+EGLThreadInfo *getEGLThreadInfo();
+#endif