build.rs

extern crate gl_generator;

use gl_generator::{Api, Fallbacks, Profile, Registry};
use std::env;
use std::fs::File;
use std::path::PathBuf;

fn main() {
    let dest = PathBuf::from(&env::var("OUT_DIR").unwrap());

    println!("cargo:rerun-if-changed=build.rs");

    let mut file = File::create(&dest.join("egl_bindings.rs")).unwrap();
    Registry::new(
        Api::Egl,
        (1, 5),
        Profile::Core,
        Fallbacks::All,
        [
            "EGL_KHR_create_context",
            "EGL_EXT_create_context_robustness",
            "EGL_KHR_create_context_no_error",
            "EGL_KHR_platform_x11",
            "EGL_KHR_platform_android",
            "EGL_KHR_platform_wayland",
            "EGL_KHR_platform_gbm",
            "EGL_EXT_platform_base",
            "EGL_EXT_platform_x11",
            "EGL_MESA_platform_gbm",
            "EGL_EXT_platform_wayland",
            "EGL_EXT_platform_device",
            "EGL_KHR_image_base",
        ],
    ).write_bindings(gl_generator::GlobalGenerator, &mut file)
    .unwrap();

    let mut file = File::create(&dest.join("gl_bindings.rs")).unwrap();
    Registry::new(
        Api::Gles2,
        (3, 2),
        Profile::Compatibility,
        Fallbacks::None,
        ["GL_OES_EGL_image"],
    ).write_bindings(gl_generator::GlobalGenerator, &mut file)
    .unwrap();
}