Add Lua function get_video_modes() for main menu

Also updates and uses porting::getSupportedVideoModes()

src/porting.cpp

@@ -570,16 +570,20 @@ void setXorgClassHint(const video::SExposedVideoData &video_data,
 }
 
 #ifndef SERVER
+
 v2u32 getWindowSize()
 {
 	return device->getVideoDriver()->getScreenSize();
 }
 
 
-std::vector<core::vector3d<u32> > getVideoModes()
+std::vector<core::vector3d<u32> > getSupportedVideoModes()
 {
+	IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
+	sanity_check(nulldevice != NULL);
+
 	std::vector<core::vector3d<u32> > mlist;
-	video::IVideoModeList *modelist = device->getVideoModeList();
+	video::IVideoModeList *modelist = nulldevice->getVideoModeList();
 
 	u32 num_modes = modelist->getVideoModeCount();
 	for (u32 i = 0; i != num_modes; i++) {
@@ -588,6 +592,8 @@ std::vector<core::vector3d<u32> > getVideoModes()
 		mlist.push_back(core::vector3d<u32>(mode_res.Width, mode_res.Height, mode_depth));
 	}
 
+	nulldevice->drop();
+
 	return mlist;
 }
 

src/porting.h

@@ -371,6 +371,7 @@ float getDisplayDensity();
 v2u32 getDisplaySize();
 v2u32 getWindowSize();
 
+std::vector<core::vector3d<u32> > getSupportedVideoModes();
 std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers();
 const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type);
 const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type);

src/script/lua_api/l_mainmenu.cpp

@@ -1056,6 +1056,28 @@ int ModApiMainMenu::l_get_video_drivers(lua_State *L)
 	return 1;
 }
 
+/******************************************************************************/
+int ModApiMainMenu::l_get_video_modes(lua_State *L)
+{
+	std::vector<core::vector3d<u32> > videomodes
+		= porting::getSupportedVideoModes();
+
+	lua_newtable(L);
+	for (u32 i = 0; i != videomodes.size(); i++) {
+		lua_newtable(L);
+		lua_pushnumber(L, videomodes[i].X);
+		lua_setfield(L, -2, "w");
+		lua_pushnumber(L, videomodes[i].Y);
+		lua_setfield(L, -2, "h");
+		lua_pushnumber(L, videomodes[i].Z);
+		lua_setfield(L, -2, "depth");
+
+		lua_rawseti(L, -2, i + 1);
+	}
+
+	return 1;
+}
+
 /******************************************************************************/
 int ModApiMainMenu::l_gettext(lua_State *L)
 {
@@ -1164,6 +1186,7 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
 	API_FCT(sound_stop);
 	API_FCT(gettext);
 	API_FCT(get_video_drivers);
+	API_FCT(get_video_modes);
 	API_FCT(get_screen_info);
 	API_FCT(get_min_supp_proto);
 	API_FCT(get_max_supp_proto);

src/script/lua_api/l_mainmenu.h

@@ -137,6 +137,8 @@ class ModApiMainMenu : public ModApiBase {
 
 	static int l_get_video_drivers(lua_State *L);
 
+	static int l_get_video_modes(lua_State *L);
+
 	//version compatibility
 	static int l_get_min_supp_proto(lua_State *L);