From c68cac89dfa2c0cee394c96339c5c991a730c0c5 Mon Sep 17 00:00:00 2001
From: Charlie Birks <admin@daftgames.net>
Date: Tue, 13 Sep 2016 00:03:55 -0700
Subject: [PATCH] use screen resolution instead of canvas size

---
 src/video/emscripten/SDL_emscriptenvideo.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/video/emscripten/SDL_emscriptenvideo.c b/src/video/emscripten/SDL_emscriptenvideo.c
index 88909c1ea..fa8e83314 100644
--- a/src/video/emscripten/SDL_emscriptenvideo.c
+++ b/src/video/emscripten/SDL_emscriptenvideo.c
@@ -134,15 +134,17 @@ int
 Emscripten_VideoInit(_THIS)
 {
     SDL_DisplayMode mode;
-    double css_w, css_h;
 
     /* Use a fake 32-bpp desktop mode */
     mode.format = SDL_PIXELFORMAT_RGB888;
 
-    emscripten_get_element_css_size(NULL, &css_w, &css_h);
+    mode.w = EM_ASM_INT_V({
+        return screen.width;
+    });
 
-    mode.w = css_w;
-    mode.h = css_h;
+    mode.h = EM_ASM_INT_V({
+        return screen.height;
+    });
 
     mode.refresh_rate = 0;
     mode.driverdata = NULL;