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use std::env;
use std::path::PathBuf;
use bindgen::callbacks::ParseCallbacks;
const SERIALIZABLE_TYPES: &[&str] = &[
"Vec2",
"Vec3",
"Vec4",
"Mat4",
"Quat",
"Transform",
"Bbox_3D",
"OBB",
"DirectionalLight",
"PointLight",
];
const EQ_TYPES: &[&str] = &[
"BufferHandle",
"TextureHandle",
"MeshHandle",
"MaterialHandle",
"ModelHandle",
];
const DEFAULT_TYPES: &[&str] = &["ShaderDataLayout"];
#[derive(Debug)]
struct AdditionalDerives;
impl ParseCallbacks for AdditionalDerives {
fn add_derives(&self, info: &bindgen::callbacks::DeriveInfo<'_>) -> Vec<String> {
let mut derives = vec![];
if SERIALIZABLE_TYPES.contains(&info.name) {
derives.extend_from_slice(&["Serialize".to_string(), "Deserialize".to_string()]);
}
if EQ_TYPES.contains(&info.name) {
derives.extend_from_slice(&["PartialEq".to_string()]);
}
if DEFAULT_TYPES.contains(&info.name) {
derives.push("Default".to_string());
}
derives
}
}
fn main() {
// TODO: we need to look based on OS
// Tell cargo to look for shared libraries in the specified directory
let static_lib_path = "/home/joshua/repos/cel-core3/build".to_string();
// let static_lib_path = std::env::var("CELERITAS_CORE_LIB")
// .unwrap_or("../../../build/macosx/arm64/debug".to_string());
println!("cargo:rustc-link-search={static_lib_path}");
// Tell cargo to tell rustc to link the system bzip2
// shared library.
println!("cargo:rustc-link-lib=dylib=celeritas");
println!("cargo:rustc-link-lib=glfw");
// The bindgen::Builder is the main entry point
// to bindgen, and lets you build up options for
// the resulting bindings.
let bindings = bindgen::Builder::default()
// The input header we would like to generate
// bindings for.
.header("../../../include/celeritas.h")
// -- dependencies
.clang_arg("-I../../../deps/cgltf")
.clang_arg("-I../../../deps/glfw-3.3.8/include/GLFW")
.clang_arg("-I../../../deps/glad/include")
.clang_arg("-I../../../deps/stb_image")
.clang_arg("-I../../../deps/stb_image_write")
.clang_arg("-I../../../deps/stb_truetype")
.generate_inline_functions(true)
// Tell cargo to invalidate the built crate whenever any of the
// included header files changed.
.rustified_enum("GPU_TextureType")
// .rustified_enum("GPU_TextureFormat")
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
.parse_callbacks(Box::new(AdditionalDerives))
// Finish the builder and generate the bindings.
.generate()
// Unwrap the Result and panic on failure.
.expect("Unable to generate bindings");
// Write the bindings to the $OUT_DIR/bindings.rs file.
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}
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