Add screensaver functions

2 files changed, 42 insertions, 0 deletions

diff --git a/c_src/esdl2.h b/c_src/esdl2.h
index 8c107f8..2cee676 100644
--- a/c_src/esdl2.h
+++ b/c_src/esdl2.h
@@ -410,6 +410,8 @@
 	F(get_version, 0) \
 	F(get_revision, 0) \
 	/* sdl_video */ \
+	F(disable_screensaver, 0) \
+	F(enable_screensaver, 0) \
 	F(get_closest_display_mode, 2) \
 	F(get_current_display_mode, 1) \
 	F(get_current_video_driver, 0) \
@@ -423,6 +425,7 @@
 	F(get_num_video_displays, 0) \
 	F(get_num_video_drivers, 0) \
 	F(get_video_driver, 1) \
+	F(is_screensaver_enabled, 0) \
 	F(video_init, 1) \
 	F(video_quit, 0) \
 	/* sdl_window */ \
diff --git a/c_src/sdl_video.c b/c_src/sdl_video.c
index 49dbe7f..e16c7d2 100644
--- a/c_src/sdl_video.c
+++ b/c_src/sdl_video.c
@@ -34,6 +34,30 @@ ERL_NIF_TERM display_mode_to_map(ErlNifEnv* env, SDL_DisplayMode* mode)
 	return map;
 }
 
+// disable_screensaver
+
+NIF_CAST_HANDLER(thread_disable_screensaver)
+{
+	SDL_DisableScreenSaver();
+}
+
+NIF_FUNCTION(disable_screensaver)
+{
+	return nif_thread_cast(env, thread_disable_screensaver, 0);
+}
+
+// enable_screensaver
+
+NIF_CAST_HANDLER(thread_enable_screensaver)
+{
+	SDL_EnableScreenSaver();
+}
+
+NIF_FUNCTION(enable_screensaver)
+{
+	return nif_thread_cast(env, thread_enable_screensaver, 0);
+}
+
 // get_closest_display_mode
 
 NIF_CALL_HANDLER(thread_get_closest_display_mode)
@@ -323,6 +347,21 @@ NIF_FUNCTION(get_video_driver)
 	return enif_make_binary(env, &bin);
 }
 
+// is_screensaver_enabled
+
+NIF_CALL_HANDLER(thread_is_screensaver_enabled)
+{
+	if (SDL_IsScreenSaverEnabled())
+		return atom_true;
+
+	return atom_false;
+}
+
+NIF_FUNCTION(is_screensaver_enabled)
+{
+	return nif_thread_call(env, thread_is_screensaver_enabled, 0);
+}
+
 // video_init
 
 NIF_CALL_HANDLER(thread_video_init)