1 files changed, 57 insertions, 0 deletions
diff --git a/gen_gl.c b/gen_gl.c
index 117d9bc..aabd13f 100644
--- a/gen_gl.c
+++ b/gen_gl.c
@@ -6,6 +6,63 @@ exit
 #define KIT_IMPLEMENTATION
 #include "include/kit.inl.h"
 
+#define MB *1024 * 1024
+#define GL_FOLDER ".gl_registry"
+#define GL_REPO "https://github.com/KhronosGroup/OpenGL-Registry"
+
 int main(int argc, char **argv) {
+  if (path_type(SZ("." PATH_DELIM GL_FOLDER)) == PATH_NONE) {
+    int s    = system("git clone --quiet --depth 1 " GL_REPO
+                      " " GL_FOLDER);
+    int code = s & 0xff;
+
+    if (code != 0) {
+      printf("`git clone` failed.\n");
+      return code;
+    }
+  }
+
+  if (path_type(SZ("." PATH_DELIM GL_FOLDER)) != PATH_FOLDER) {
+    printf("OpenGL registry folder not found.\n");
+    return 1;
+  }
+
+  FILE *f = fopen("." PATH_DELIM GL_FOLDER PATH_DELIM "xml" PATH_DELIM
+                  "gl.xml",
+                  "rb");
+
+  if (f == NULL) {
+    printf("Failed to read OpenGL registry.\n");
+    return 1;
+  }
+
+  //  FIXME
+  //  Optimize memory use
+  i64 arena_size = 100 MB;
+  u8 *arena = kit_alloc_dispatch(NULL, KIT_ALLOCATE, arena_size, 0,
+                                 NULL);
+  kit_allocator_t alloc = kit_alloc_buffer(arena_size, arena);
+
+  is_handle_t     is = is_wrap_file(f, &alloc);
+  struct timespec t0, t1;
+  timespec_get(&t0, TIME_UTC);
+  xml_parse_result_t res = xml_parse(is, &alloc);
+  timespec_get(&t1, TIME_UTC);
+  is_destroy(is);
+  fclose(f);
+
+  if (res.status != KIT_OK) {
+    printf("XML parse failed.\n");
+    kit_alloc_dispatch(NULL, KIT_DEALLOCATE, 0, 0, arena);
+    return 1;
+  }
+
+  i64 diff = 1000 * (t1.tv_sec - t0.tv_sec) +
+             (t1.tv_nsec - t0.tv_nsec + 500000) / 1000000;
+  printf("XML parsed in %lld milliseconds.\n", diff);
+
+  xml_destroy(&res.xml);
+
+  kit_alloc_dispatch(NULL, KIT_DEALLOCATE, 0, 0, arena);
   return 0;
 }