1 files changed, 139 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-mochitest/driver-info.js b/dom/canvas/test/webgl-mochitest/driver-info.js
new file mode 100644
index 0000000000..5e68ce50ba
--- /dev/null
+++ b/dom/canvas/test/webgl-mochitest/driver-info.js
@@ -0,0 +1,139 @@
+DriverInfo = (function () {
+  // ---------------------------------------------------------------------------
+  // Debug info handling
+
+  function info(str) {
+    window.console.log("Info: " + str);
+  }
+
+  // ---------------------------------------------------------------------------
+  // OS and driver identification
+  //   Stolen from dom/canvas/test/webgl/test_webgl_conformance_test_suite.html
+  function detectDriverInfo() {
+    var canvas = document.createElement("canvas");
+    canvas.width = 1;
+    canvas.height = 1;
+
+    var type = "";
+    var gl = null;
+    try {
+      gl = canvas.getContext("experimental-webgl");
+    } catch (e) {}
+
+    if (!gl) {
+      info("Failed to create WebGL context for querying driver info.");
+      throw "WebGL failed";
+    }
+
+    var ext = gl.getExtension("WEBGL_debug_renderer_info");
+    if (!ext) {
+      throw "WEBGL_debug_renderer_info not available";
+    }
+
+    var webglRenderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);
+    return webglRenderer;
+  }
+
+  function detectOSInfo() {
+    var os = null;
+    var version = null;
+    if (navigator.platform.indexOf("Win") == 0) {
+      os = OS.WINDOWS;
+
+      var versionMatch = /Windows NT (\d+.\d+)/.exec(navigator.userAgent);
+      version = versionMatch ? parseFloat(versionMatch[1]) : null;
+      // Version 6.0 is Vista, 6.1 is 7.
+    } else if (navigator.platform.indexOf("Mac") == 0) {
+      os = OS.MAC;
+
+      var versionMatch = /Mac OS X (\d+.\d+)/.exec(navigator.userAgent);
+      version = versionMatch ? parseFloat(versionMatch[1]) : null;
+    } else if (navigator.appVersion.includes("Android")) {
+      os = OS.ANDROID;
+
+      try {
+        // From layout/tools/reftest/reftest.js:
+        version = SpecialPowers.Services.sysinfo.getProperty("version");
+      } catch (e) {
+        info("No SpecialPowers: can't query android version");
+      }
+    } else if (navigator.platform.indexOf("Linux") == 0) {
+      // Must be checked after android, as android also has a 'Linux' platform string.
+      os = OS.LINUX;
+    }
+
+    return [os, version];
+  }
+
+  var OS = {
+    WINDOWS: "windows",
+    MAC: "mac",
+    LINUX: "linux",
+    ANDROID: "android",
+  };
+
+  var DRIVER = {
+    INTEL: "intel",
+    MESA: "mesa",
+    NVIDIA: "nvidia",
+    ANDROID_X86_EMULATOR: "android x86 emulator",
+    ANGLE: "angle",
+  };
+
+  var kOS = null;
+  var kOSVersion = null;
+  var kRawDriver = null;
+  var kDriver = null;
+
+  try {
+    [kOS, kOSVersion] = detectOSInfo();
+  } catch (e) {
+    // Generally just fails when we don't have SpecialPowers.
+  }
+
+  try {
+    kRawDriver = detectDriverInfo();
+
+    if (kRawDriver.includes("llvmpipe")) {
+      kDriver = DRIVER.MESA;
+    } else if (kRawDriver.includes("Android Emulator")) {
+      kDriver = DRIVER.ANDROID_X86_EMULATOR;
+    } else if (kRawDriver.includes("ANGLE")) {
+      kDriver = DRIVER.ANGLE;
+    } else if (kRawDriver.includes("NVIDIA")) {
+      kDriver = DRIVER.NVIDIA;
+    } else if (kRawDriver.includes("Intel")) {
+      kDriver = DRIVER.INTEL;
+    }
+  } catch (e) {
+    // detectDriverInfo is fallible where WebGL fails.
+  }
+
+  function dump(line_out_func) {
+    let lines = [
+      "[DriverInfo] userAgent: " + navigator.userAgent,
+      "[DriverInfo] kRawDriver: " + kRawDriver,
+      "[DriverInfo] kDriver: " + kDriver,
+      "[DriverInfo] kOS: " + kOS,
+      "[DriverInfo] kOSVersion: " + kOSVersion,
+    ];
+    lines.forEach(line_out_func);
+  }
+
+  dump(x => console.log(x));
+
+  return {
+    DRIVER,
+    OS,
+    dump,
+    getDriver() {
+      return kDriver;
+    },
+    getOS() {
+      return kOS;
+    },
+    getOSVersion() {
+      return kOSVersion;
+    },
+  };
+})();