feat: add project & bindings

1 files changed, 61 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..9568b6c
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,61 @@
+//! OpenGL bindings.
+#![deny(clippy::all, clippy::pedantic, missing_docs)]
+
+use opengl_registry_macros::for_each_opengl_command;
+
+for_each_opengl_command! {
+    #[doc = stringify!(_gl_command_)]
+    #[allow(non_snake_case, clippy::too_many_arguments)]
+    pub unsafe fn _gl_command_(_gl_command_args_) -> _gl_command_ret_type_ {
+        type GLFunc =
+            unsafe extern "C" fn(_gl_command_arg_types_) -> _gl_command_ret_type_;
+
+        let gl_func = std::mem::transmute::<_, GLFunc>(functions::_gl_command_);
+
+        gl_func(_gl_command_arg_names_)
+    }
+}
+
+mod ffi
+{
+    #![allow(
+        non_upper_case_globals,
+        non_camel_case_types,
+        non_snake_case,
+        unused,
+        missing_docs,
+        clippy::unreadable_literal
+    )]
+
+    include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+}
+
+pub use ffi::*;
+
+/// Loads OpenGL function pointers using the given function address retriever function.
+pub fn load_with<GetProcAddrFn>(get_proc_addr: GetProcAddrFn)
+where
+    GetProcAddrFn: Fn(&str) -> unsafe extern "C" fn(),
+{
+    for_each_opengl_command! {
+        unsafe {
+            functions::_gl_command_ = get_proc_addr(stringify!(_gl_command_));
+        }
+    };
+}
+
+mod functions
+{
+    use opengl_registry_macros::for_each_opengl_command;
+
+    for_each_opengl_command!(
+        #[doc = stringify!(_gl_command_)]
+        #[allow(non_upper_case_globals)]
+        pub static mut _gl_command_: unsafe extern "C" fn() = function_not_loaded;
+    );
+
+    extern "C" fn function_not_loaded()
+    {
+        panic!("OpenGL function not loaded");
+    }
+}