start on ocaml bindings

1 files changed, 132 insertions, 0 deletions

diff --git a/bindgen/ocaml/bindings/caml_bindings.c b/bindgen/ocaml/bindings/caml_bindings.c
new file mode 100644
index 0000000..4a7dc70
--- /dev/null
+++ b/bindgen/ocaml/bindings/caml_bindings.c
@@ -0,0 +1,132 @@
+/* automatically generated by ocaml-bindgen 0.0.1 */
+
+#include "celeritas.h"
+#include <caml/alloc.h>
+#include <caml/callback.h>
+#include <caml/fail.h>
+#include <caml/memory.h>
+#include <caml/mlvalues.h>
+#include <caml/unixsupport.h>
+Core* caml_get_global_core() {
+  CAMLparam0();
+  CAMLlocal1(result);
+  result = get_global_core();
+  CAMLreturn(result);
+}
+
+void caml_core_Bringup(value caml_optional_window) {
+  CAMLparam1(caml_optional_window);
+  void* optional_window = Nativeint_val(Field(caml_optional_window, 1));
+  core_Bringup(optional_window);
+  CAMLreturn0;
+}
+
+void caml_frame_Begin() {
+  CAMLparam0();
+  frame_Begin();
+  CAMLreturn0;
+}
+
+void caml_frame_Draw() {
+  CAMLparam0();
+  frame_Draw();
+  CAMLreturn0;
+}
+
+void caml_frame_End() {
+  CAMLparam0();
+  frame_End();
+  CAMLreturn0;
+}
+
+Vec2* caml_Vec2_of_value(value caml_x) {
+  Vec2* x = malloc(sizeof(struct Vec2));
+  x->x = Double_val(Field(caml_x, 0));
+  x->y = Double_val(Field(caml_x, 1));
+  return x;
+}
+
+value caml_Vec2_to_value(struct Vec2* x) {
+  CAMLparam0();
+  CAMLlocal1(caml_x);
+  caml_x = caml_alloc_tuple(2);
+  Store_field(caml_x, 0, caml_copy_double(x->x));
+  Store_field(caml_x, 1, caml_copy_double(x->y));
+  CAMLreturn(caml_x);
+}
+
+Vec3* caml_Vec3_of_value(value caml_x) {
+  Vec3* x = malloc(sizeof(struct Vec3));
+  x->x = Double_val(Field(caml_x, 0));
+  x->y = Double_val(Field(caml_x, 1));
+  x->z = Double_val(Field(caml_x, 2));
+  return x;
+}
+
+value caml_Vec3_to_value(struct Vec3* x) {
+  CAMLparam0();
+  CAMLlocal1(caml_x);
+  caml_x = caml_alloc_tuple(3);
+  Store_field(caml_x, 0, caml_copy_double(x->x));
+  Store_field(caml_x, 1, caml_copy_double(x->y));
+  Store_field(caml_x, 2, caml_copy_double(x->z));
+  CAMLreturn(caml_x);
+}
+
+Vec4* caml_Vec4_of_value(value caml_x) {
+  Vec4* x = malloc(sizeof(struct Vec4));
+  x->x = Double_val(Field(caml_x, 0));
+  x->y = Double_val(Field(caml_x, 1));
+  x->z = Double_val(Field(caml_x, 2));
+  x->w = Double_val(Field(caml_x, 3));
+  return x;
+}
+
+value caml_Vec4_to_value(struct Vec4* x) {
+  CAMLparam0();
+  CAMLlocal1(caml_x);
+  caml_x = caml_alloc_tuple(4);
+  Store_field(caml_x, 0, caml_copy_double(x->x));
+  Store_field(caml_x, 1, caml_copy_double(x->y));
+  Store_field(caml_x, 2, caml_copy_double(x->z));
+  Store_field(caml_x, 3, caml_copy_double(x->w));
+  CAMLreturn(caml_x);
+}
+
+Vec3 caml_vec3_add(value caml_a, value caml_b) {
+  CAMLparam2(caml_a, caml_b);
+  CAMLlocal1(result);
+  Vec3 a = caml_Vec3_of_value(caml_a);
+  Vec3 b = caml_Vec3_of_value(caml_b);
+  result = vec3_add(a, b);
+  CAMLreturn(result);
+}
+
+
+#include <stdlib.h>
+value bindgen_alloc(value caml_size) {
+    CAMLparam1(caml_size);
+
+    // Convert OCaml integer to C size
+    size_t size = Int_val(caml_size);
+    printf("Allocated size %ld \n", size);
+
+    void* ptr = malloc(sizeof(size));
+    if (ptr == NULL) {
+        // TODO: handle allocation failure
+        CAMLreturn(Val_unit);
+    }
+    
+    // Wrap the pointer as an OCaml value
+    CAMLreturn(caml_copy_nativeint(ptr));
+}
+
+void bindgen_free(value caml_addr) {
+    free(Nativeint_val(caml_addr));
+}
+
+value bindgen_alloc_string(value caml_string) {
+  CAMLparam1(caml_string);
+    char* str = String_val(caml_string);
+    CAMLreturn(caml_copy_nativeint((intnat)str));
+}