emulator: opengl: Back-port GLES emulation from the master tree.

The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true
in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk)

Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6

tools/emulator/opengl/shared/OpenglCodecCommon/GLErrorLog.h

@@ -0,0 +1,18 @@
+#ifndef __GL_ERROR_LOG_H__
+#define __GL_ERROR_LOG_H__
+
+#include "ErrorLog.h"
+
+#ifdef CHECK_GL_ERROR
+void dbg(){}
+#define GET_GL_ERROR(gl)  \
+    {   \
+        int err = gl.glGetError();    \
+        if (err) { dbg(); ERR("Error: 0x%X in %s (%s:%d)\n", err, __FUNCTION__, __FILE__, __LINE__); }  \
+    }
+
+#else
+#define GET_GL_ERROR(gl)
+#endif
+
+#endif //__GL_ERROR_LOG_H__