don't test webgl more than once

2024-05-17 19:19:52 +02:00
parent f6a7982eea
commit c5c3933bdd
2 changed files with 15 additions and 5 deletions
--- a/html/script.js
+++ b/html/script.js
@@ -2148,16 +2148,26 @@ function webglAddLayer() {
            style: glStyle,
            renderBuffer: renderBuffer,
        });
-        if (!webglLayer || !webglLayer.getRenderer())
+        if (!webglLayer)
            return false;
+        if (loStore['webglTested'] != 'true' && !webglLayer.getRenderer()) {
+            return false;
+        }

        layers.push(webglLayer);

        webgl = true;
-        plane.visible = true;
-        plane.updateMarker();
-        OLMap.renderSync();

+        // only test webgl once in every browser
+        // after that assume that it's working
+
+        if (loStore['webglTested'] != 'true') {
+            plane.visible = true;
+            plane.updateMarker();
+            OLMap.renderSync();
+        }
+
+        loStore['webglTested'] = 'true';
        success = true;
    } catch (error) {
        try {