setup: switched from glut to glfw as windowing backend

build.sh

@@ -0,0 +1,3 @@
+#! /bin/bash
+
+g++ main.cpp -lGL -lglfw -lGLEW

main.cpp

@@ -1,5 +1,5 @@
 #include <GL/glew.h>
-#include <GL/freeglut.h>
+#include <GLFW/glfw3.h>
 #include <cstdio>
 
 void display() {
@@ -20,20 +20,54 @@ void display() {
     glViewport(0, 0, width, height);
 }*/
 
+void processInput(GLFWwindow *window)
+{
+    if(glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
+        glfwSetWindowShouldClose(window, true);
+}
+
 int main(int argc, char** argv) {
-    glutInit(&argc, argv);
-    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
-    glutInitWindowSize(800, 600);
-    glutCreateWindow("OpenGL Example");
+
+    GLFWwindow* window;
+
+    if (!glfwInit())
+        return -1;
+
+    window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
+
+    if (!window)
+    {
+        glfwTerminate();
+        return -1;
+    }
+
+    glfwMakeContextCurrent(window);
+
     GLenum err = glewInit();
     if (GLEW_OK != err) {
         fprintf(stderr, "GLEW error: %s\n", glewGetErrorString(err));
         return 1;
     }
 
+
     glViewport(0, 0, 800, 600);
-    //glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
-    glutDisplayFunc(display);
-    glutMainLoop();
-    return 0;
+
+    while (!glfwWindowShouldClose(window))
+    {
+        processInput(window);
+        /* Render here */
+
+
+        glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
+        glClear(GL_COLOR_BUFFER_BIT);
+
+
+        /* Poll for and process events */
+        glfwPollEvents();
+
+        glfwSwapBuffers(window);
+    }
+
+    glfwTerminate();
 }
+