Added love.window.toPixels(x [, y]) and love.window.fromPixels(x [, y]), for easier conversion between window-space and pixel-space values when highdpi mode is enabled on a retina display in OS X (and in the iOS and Android ports of LÖVE.)

src/modules/window/wrap_Window.h

@@ -49,6 +49,8 @@ int w_hasFocus(lua_State *L);
 int w_hasMouseFocus(lua_State *L);
 int w_isVisible(lua_State *L);
 int w_getPixelScale(lua_State *L);
+int w_toPixels(lua_State *L);
+int w_fromPixels(lua_State *L);
 int w_minimize(lua_State *L);
 int w_showMessageBox(lua_State *L);
 extern "C" LOVE_EXPORT int luaopen_love_window(lua_State *L);