Issue an error when map canvas is larger than allowed by gl.MAX_RENDE…

…RBUFFER_SIZE mapbox#2893
stepankuzmin · Dec 20, 2016 · c14d390 · c14d390
1 parent 9bb6de3
commit c14d390
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/js/ui/map.js b/js/ui/map.js
@@ -1051,6 +1051,15 @@ class Map extends Camera {
             return;
         }
 
+        const MAX_RENDERBUFFER_SIZE = gl.MAX_RENDERBUFFER_SIZE / 2;
+        if (this._canvas.width > MAX_RENDERBUFFER_SIZE ||
+            this._canvas.height > MAX_RENDERBUFFER_SIZE) {
+            this.fire('error', {
+                error: new Error('Map canvas is larger than allowed by gl.MAX_RENDERBUFFER_SIZE')
+            });
+            return;
+        }
+
         this.painter = new Painter(gl, this.transform);
     }