1 files changed, 69 insertions, 0 deletions
diff --git a/c_src/sdl_gl.c b/c_src/sdl_gl.c
new file mode 100644
index 0000000..febd49f
--- /dev/null
+++ b/c_src/sdl_gl.c
@@ -0,0 +1,69 @@
+// Copyright (c) 2015, Loïc Hoguin <[email protected]>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#include "esdl2.h"
+
+void dtor_GLContext(ErlNifEnv* env, void* obj)
+{
+	SDL_GL_DeleteContext(NIF_RES_GET(GLContext, obj));
+	enif_release_resource(NIF_RES_DEP(GLContext, obj));
+}
+
+// gl_create_context
+
+NIF_CALL_HANDLER(thread_gl_create_context)
+{
+	SDL_GLContext context;
+	ERL_NIF_TERM term;
+
+	context = SDL_GL_CreateContext(args[0]);
+	if (!context)
+		return sdl_error_tuple(env);
+
+	enif_keep_resource(args[0]);
+
+	NIF_RES_TO_TERM_WITH_DEP(GLContext, context, term, args[0]);
+
+	return enif_make_tuple2(env,
+		atom_ok,
+		term
+	);
+}
+
+NIF_FUNCTION(gl_create_context)
+{
+	void* window_res;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Window, &window_res));
+
+	return nif_thread_call(env, thread_gl_create_context, 1,
+		NIF_RES_GET(Window, window_res));
+}
+
+// gl_swap_window
+
+NIF_CAST_HANDLER(thread_gl_swap_window)
+{
+	SDL_GL_SwapWindow(args[0]);
+}
+
+NIF_FUNCTION(gl_swap_window)
+{
+	void* window_res;
+
+	BADARG_IF(!enif_get_resource(env, argv[0], res_Window, &window_res));
+
+	return nif_thread_cast(env, thread_gl_swap_window, 1,
+		NIF_RES_GET(Window, window_res));
+}