From e7f7100ba6759f30295dbc49f819ebb9c4785298 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Wed, 1 Aug 2018 08:58:59 +0200
Subject: Bug 1335296 - Expand about:support WebGL information

---
 toolkit/modules/Troubleshoot.jsm | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

(limited to 'toolkit/modules/Troubleshoot.jsm')

diff --git a/toolkit/modules/Troubleshoot.jsm b/toolkit/modules/Troubleshoot.jsm
index cea7c8f29..65342b623 100644
--- a/toolkit/modules/Troubleshoot.jsm
+++ b/toolkit/modules/Troubleshoot.jsm
@@ -419,7 +419,12 @@ var dataProviders = {
       .createInstance(Ci.nsIDOMParser)
       .parseFromString("<html/>", "text/html");
 
-    function GetWebGLInfo(contextType) {
+    function GetWebGLInfo(data, keyPrefix, contextType) {
+        data[keyPrefix + "Renderer"] = "-";
+        data[keyPrefix + "Version"] = "-";
+        data[keyPrefix + "Extensions"] = "-";
+        data[keyPrefix + "WSIInfo"] = "-";
+
         let canvas = doc.createElement("canvas");
         canvas.width = 1;
         canvas.height = 1;
@@ -446,16 +451,21 @@ var dataProviders = {
             creationError = e.toString();
           }
         }
-        if (!gl)
-            return creationError || "(no info)";
+        if (!gl) {
+          data[keyPrefix + "Renderer"] = creationError || "(no creation error info)";
+          return;
+        }
 
 
-        let infoExt = gl.getExtension("WEBGL_debug_renderer_info");
+        let ext = gl.getExtension("MOZ_debug_get");
         // This extension is unconditionally available to chrome. No need to check.
-        let vendor = gl.getParameter(infoExt.UNMASKED_VENDOR_WEBGL);
-        let renderer = gl.getParameter(infoExt.UNMASKED_RENDERER_WEBGL);
+        let vendor = ext.getParameter(gl.VENDOR);
+        let renderer = ext.getParameter(gl.RENDERER);
 
-        let contextInfo = vendor + " -- " + renderer;
+        data[keyPrefix + "Renderer"] = vendor + " -- " + renderer;
+        data[keyPrefix + "Version"] = ext.getParameter(gl.VERSION);
+        data[keyPrefix + "Extensions"] = ext.getParameter(ext.EXTENSIONS);
+        data[keyPrefix + "WSIInfo"] = ext.getParameter(ext.WSI_INFO);
 
 
         // Eagerly free resources.
@@ -463,14 +473,11 @@ var dataProviders = {
         if (loseExt) {
           loseExt.loseContext();
         }
-
-
-        return contextInfo;
     }
 
 
-    data.webglRenderer = GetWebGLInfo("webgl");
-    data.webgl2Renderer = GetWebGLInfo("webgl2");
+    GetWebGLInfo(data, "webgl1", "webgl");
+    GetWebGLInfo(data, "webgl2", "webgl2");
 
 
     let infoInfo = gfxInfo.getInfo();
-- 
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