modified to perform SetMargins() only if its arguments change and mod…

…ified to avoid rendering if texture dimension is zero.
gree · Oct 19, 2020 · 7920b9e · 7920b9e
1 parent 903b55d
commit 7920b9e
Showing 1 changed file with 14 additions and 5 deletions.
diff --git a/plugins/WebViewObject.cs b/plugins/WebViewObject.cs
@@ -458,6 +458,13 @@ public void SetMargins(int left, int top, int right, int bottom, bool relative =
         if (webView == null)
             return;
 #endif
+        if (mMarginLeft == left
+            && mMarginTop == top
+            && mMarginRight == right
+            && mMarginBottom == bottom)
+        {
+            return;
+        }
         mMarginLeft = left;
         mMarginTop = top;
         mMarginRight = right;
@@ -1023,11 +1030,13 @@ void Update()
                     textureDataBuffer = new byte[w * h * 4];
                 }
             }
-            var gch = GCHandle.Alloc(textureDataBuffer, GCHandleType.Pinned);
-            _CWebViewPlugin_Render(webView, gch.AddrOfPinnedObject());
-            gch.Free();
-            texture.LoadRawTextureData(textureDataBuffer);
-            texture.Apply();
+            if (textureDataBuffer.Length > 0) {
+                var gch = GCHandle.Alloc(textureDataBuffer, GCHandleType.Pinned);
+                _CWebViewPlugin_Render(webView, gch.AddrOfPinnedObject());
+                gch.Free();
+                texture.LoadRawTextureData(textureDataBuffer);
+                texture.Apply();
+            }
         }
     }