emscripten: use emscripten_get_screen_size api
diff --git a/src/video/emscripten/SDL_emscriptenvideo.c b/src/video/emscripten/SDL_emscriptenvideo.c
index b38862e..a376b50 100644
--- a/src/video/emscripten/SDL_emscriptenvideo.c
+++ b/src/video/emscripten/SDL_emscriptenvideo.c
@@ -137,14 +137,7 @@ Emscripten_VideoInit(_THIS)
/* Use a fake 32-bpp desktop mode */
mode.format = SDL_PIXELFORMAT_RGB888;
-
- mode.w = EM_ASM_INT_V({
- return screen.width;
- });
-
- mode.h = EM_ASM_INT_V({
- return screen.height;
- });
+ emscripten_get_screen_size(&mode.w, &mode.h);
mode.refresh_rate = 0;
mode.driverdata = NULL;