Added utility stuff

include/Engine/Rendering/Util/GLError.h

@@ -0,0 +1,40 @@
+/*
+	This file is part of Daydream Engine.
+	Copyright 2014 Adam Byléhn, Tobias Dahl, Simon Holmberg, Viktor Ljung
+	
+	Daydream Engine is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	Daydream Engine is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+	
+	You should have received a copy of the GNU Lesser General Public License
+	along with Daydream Engine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef GLError_h__
+#define GLError_h__
+
+#include "PrecompiledHeader.h"
+#include <iostream>
+
+inline bool _GLERROR(const char* info, const char* file, const char* func, unsigned int line)
+{
+	GLenum error = glGetError();
+	if (error != GL_NO_ERROR)
+	{
+		_LOG(LOG_LEVEL_ERROR, file, func, line, "GL Error: %s %i %s", info, error, gluErrorString(error));
+		return true;
+	}
+
+	return false;
+}
+
+#define GLERROR(function) \
+	_GLERROR(function, __BASE_FILE__, __func__, __LINE__)
+
+#endif // GLError_h__