Display buffer bits on Mac OSX

bufferbits.c

#include <stdio.h>
#include <stdlib.h>
#include <GLUT/glut.h>

int
main(int argc, char** argv)
{
    GLint red_bits, green_bits, blue_bits, alpha_bits;
    GLint depth_bits, stencil_bits;
    GLint accum_red_bits, accum_green_bits, accum_blue_bits, accum_alpha_bits;

    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_STENCIL | GLUT_ACCUM);
    glutCreateWindow(argv[0]);

    glGetIntegerv(GL_RED_BITS, &red_bits);
    glGetIntegerv(GL_GREEN_BITS, &green_bits);
    glGetIntegerv(GL_BLUE_BITS, &blue_bits);
    glGetIntegerv(GL_ALPHA_BITS, &alpha_bits);
    glGetIntegerv(GL_DEPTH_BITS, &depth_bits);
    glGetIntegerv(GL_STENCIL_BITS, &stencil_bits);
    glGetIntegerv(GL_ACCUM_RED_BITS, &accum_red_bits);
    glGetIntegerv(GL_ACCUM_GREEN_BITS, &accum_green_bits);
    glGetIntegerv(GL_ACCUM_BLUE_BITS, &accum_blue_bits);
    glGetIntegerv(GL_ACCUM_ALPHA_BITS, &accum_alpha_bits);

    printf("COLOR: %d %d %d %d\n", red_bits, green_bits, blue_bits, alpha_bits);
    printf("DEPTH: %d\n", depth_bits);
    printf("STENCIL: %d\n", stencil_bits);
    printf("ACCUM: %d %d %d %d\n", accum_red_bits, accum_green_bits, accum_blue_bits, accum_alpha_bits);

    return 0;
}