openGL / mac / 2.1 / glfw

window.cpp

// include standard stuff
#include <stdio.h>
#include <stdlib.h>

// include GLEW always before gl.h && glfw.h
#include <GL/glew.h>

// windows && keyboard
#include <GL/glfw.h>

// 3d math library
#include <glm/glm.hpp>

using namespace glm;

class Start     
{
    
public:
//     Start();
    int windowAndKeyboard();
    int setAntialiasing(int);
    int setOpenGLVersion(int, int);
    int createContext();
    int initGlew();
    int setWindowTitle(const char *);
// 	~Start();
    
 	/* data */
};

int Start::windowAndKeyboard()
{
    // init window && keyboard
    if (! glfwInit())
    {
        fprintf(stderr, "fallo el initd\n");
        return -1;
    }
    return 0;
}

int Start::setAntialiasing(int times)
{
    // 4X antialiasing
    glfwOpenWindowHint(GLFW_FSAA_SAMPLES, times);
    return 0;
}

int Start::setOpenGLVersion(int major, int minor)
{
    // opengl 2.1
    glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, major);
    glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, minor);
    
    // fuck old opengl but MAC needs this sh!t!?!?
    //glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    return 0;
}

int Start::createContext()
{
    //open window && create context "width, heigth, r, g, b, a, depth, stencil, mode"
    if (! glfwOpenWindow(600, 800, 0, 0, 0, 0, 64, 0, GLFW_WINDOW))
    {
        fprintf(stderr, "FAIL to open thw windows and create the ctx\n");
        glfwTerminate();
        return -1;
    }
    return 0;
}

int Start::initGlew()
{
    // this is for core profile
    glewExperimental = true;
    
    if (glewInit() != GLEW_OK)
    {
        fprintf(stderr, "fail to init glew! \n");
        return -1;
    }
    return 0;
}

int Start::setWindowTitle(const char * title)
{
    glfwSetWindowTitle(title);
    
    // enale keyboard
    glfwEnable(GLFW_STICKY_KEYS);
    
    return 0;
}

int main()
{
    
    Start start;
    start.windowAndKeyboard();
    start.setAntialiasing(4);
    start.setOpenGLVersion(2, 1);
    start.createContext();
    start.initGlew();
    start.setWindowTitle("the fuck!ng window");
    
    
    
    do {
        // swap buffers
        glfwSwapBuffers();
        
        //check for "ESC" key || windows close
    } while (glfwGetKey(GLFW_KEY_ESC) != GLFW_PRESS && glfwGetWindowParam(GLFW_OPENED));
    
    
}