hello-gl-dummy.c

#include <stdlib.h>
#include <GL/glew.h>
#ifdef __APPLE__
#  include <GLUT/glut.h>
#else
#  include <GL/glut.h>
#endif
#include <stdio.h>

static int make_resources(void)
{
    return 1;
}

/*
 * GLUT callbacks:
 */
static void update_fade_factor(void)
{
}

static void render(void)
{
    glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT);

    glutSwapBuffers();
}

/*
 * Entry point
 */
int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    glutInitWindowSize(400, 300);
    glutCreateWindow("Hello World");
    glutIdleFunc(&update_fade_factor);
    glutDisplayFunc(&render);

    glewInit();
    if (!GLEW_VERSION_2_0) {
        fprintf(stderr, "OpenGL 2.0 not available\n");
        return 1;
    }

    if (!make_resources()) {
        fprintf(stderr, "Failed to load resources\n");
        return 1;
    }

    glutMainLoop();
    return 0;
}