start adding rust bindgen

5 files changed, 472 insertions, 0 deletions

diff --git a/bindgen/rust/Cargo.lock b/bindgen/rust/Cargo.lock
new file mode 100644
index 0000000..63f3b6b
--- /dev/null
+++ b/bindgen/rust/Cargo.lock
@@ -0,0 +1,366 @@
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diff --git a/bindgen/rust/Cargo.toml b/bindgen/rust/Cargo.toml
new file mode 100644
index 0000000..879e669
--- /dev/null
+++ b/bindgen/rust/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "celeritas"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+
+[build-dependencies]
+bindgen = "0.69.4"
diff --git a/bindgen/rust/build.rs b/bindgen/rust/build.rs
new file mode 100644
index 0000000..113059b
--- /dev/null
+++ b/bindgen/rust/build.rs
@@ -0,0 +1,53 @@
+use std::env;
+use std::path::PathBuf;
+
+fn main() {
+    // Tell cargo to look for shared libraries in the specified directory
+    println!("cargo:rustc-link-search=../../build/macosx/arm64/debug");
+
+    // Tell cargo to tell rustc to link the system bzip2
+    // shared library.
+    println!("cargo:rustc-link-lib=core_static");
+    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/amalgamation.h")
+        // -- our code
+        .clang_arg("-I../../src")
+        .clang_arg("-I../../src/core")
+        .clang_arg("-I../../src/maths")
+        .clang_arg("-I../../src/new_render")
+        .clang_arg("-I../../src/platform")
+        .clang_arg("-I../../src/ral")
+        .clang_arg("-I../../src/ral/backends/opengl")
+        .clang_arg("-I../../src/resources")
+        .clang_arg("-I../../src/std")
+        .clang_arg("-I../../src/std/containers")
+        .clang_arg("-I../../src/systems")
+        // -- 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.
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
+        // 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!");
+}
diff --git a/bindgen/rust/examples/main_loop.rs b/bindgen/rust/examples/main_loop.rs
new file mode 100644
index 0000000..a74e11c
--- /dev/null
+++ b/bindgen/rust/examples/main_loop.rs
@@ -0,0 +1,39 @@
+use celeritas::*;
+
+unsafe fn run_game() {
+  // init
+  Core_Bringup();
+
+  // let mut cube_geo = Geo_CreateCuboid(Vec3 { x: 1.0, y: 1.0, z: 1.0 });
+  // let cube = Mesh_Create(&mut cube_geo, false);
+
+  let camera_pos = Vec3 { x: 0.0, y: 2.0, z: -3.0 };
+  let pos_y = Vec3 { x: 0., y: 1.0, z: 0. };
+  let camera = Camera_Create(camera_pos, vec3_normalise(vec3_negate(camera_pos)), pos_y, 45.0);
+  SetCamera(camera);
+  // let camera = Camera_Create(camera_pos, vec3_normalise(vec3_negate(camera_pos)), VEC3_Y, 45.0);
+  // SetCamera(cam);  // update the camera in RenderScene
+
+  let whatever = Vec3 { x: 1.0, y: 1.0, z: 1.0 };
+  let sun = DirectionalLight { direction: whatever, ambient: whatever, diffuse: whatever, specular: whatever };
+  SetMainLight(sun);
+
+  // Skybox skybox = Skybox_Create(faces, 6);
+  let skybox = Skybox_Create(face_paths, 6);
+
+    while !ShouldExit() {
+      Frame_Begin();
+
+
+
+      Frame_End();
+    }
+}
+
+fn main() {
+    println!("Running from Rust!");
+
+    unsafe {
+        run_game();
+    }
+}
diff --git a/bindgen/rust/src/lib.rs b/bindgen/rust/src/lib.rs
new file mode 100644
index 0000000..a38a13a
--- /dev/null
+++ b/bindgen/rust/src/lib.rs
@@ -0,0 +1,5 @@
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));