windowConfig.h

#ifndef WINDOW_CONFIG_H
#define WINDOW_CONFIG_H

#include <stdio.h>

GLFWwindow* initWindow(string title, const int resX, const int resY, GLFWkeyfun keyFunc)
{
    if(!glfwInit())
    {
        fprintf(stderr, "Failed to initialize GLFW\n");
        return NULL;
    }
    glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing

    // Open a window and create its OpenGL context
    GLFWwindow* window = glfwCreateWindow(resX, resY, title.c_str(), NULL, NULL);

    if(window == NULL)
    {
        fprintf(stderr, "Failed to open GLFW window.\n");
        glfwTerminate();
        return NULL;
    }

    glfwMakeContextCurrent(window);
    glfwSetKeyCallback(window, keyFunc);

    // Get info of GPU and supported OpenGL version
    cout << "Renderer: " << glGetString(GL_RENDERER) << endl;
    cout << "OpenGL version supported " << glGetString(GL_VERSION) << endl;

    glEnable(GL_DEPTH_TEST); // Depth Testing
    glDepthFunc(GL_LEQUAL);
    glDisable(GL_CULL_FACE);
    glCullFace(GL_BACK);

    int n;
    glGetIntegerv(GL_MAX_LIGHTS, &n);
    cout << "Max Lights: " << n << endl;

    return window;
}

#endif