OpenGLInit.h

#ifndef _OPENGL_INIT_
#define _OPENGL_INIT_

#include <GL/glew.h>
#include <glfw3.h>
#include <GL/freeglut.h>
#include <fstream>

#include <iostream>

namespace EvoLisa {

	using std::cerr;
	using std::endl;

	inline int InitOpenGL (GLFWwindow *&window, int width, int height, int version_minor, int version_major) {
		if (!glfwInit ()) {
			fprintf (stderr, "Failed to initialize GLFW!\n");
			return 1;
		}
		glfwWindowHint (GLFW_SAMPLES, 4);
		glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
		glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 3);
		glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

		window = glfwCreateWindow (width, height, "Test", NULL, NULL);
		if (!window) {
			fprintf (stderr, "Could not create window!\n");
			glfwTerminate ();
			return 2;
		}

		glfwMakeContextCurrent (window);
		glewExperimental = GL_TRUE;
		if (glewInit ()) {
			fprintf (stderr, "Failed to initialize GLEW!\n");
			return 3;
		}
		glfwSetInputMode (window, GLFW_STICKY_KEYS, GL_TRUE);
		glfwGetFramebufferSize (window, &width, &height);
		glViewport (0, 0, width, height);
		glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable (GL_BLEND);
		glDisable (GL_CULL_FACE);
		return 0;
	}

};
#endif