DriverInfo = (function() { // --------------------------------------------------------------------------- // Debug info handling function defaultInfoFunc(str) { console.log('Info: ' + str); } var gInfoFunc = defaultInfoFunc; function setInfoFunc(func) { gInfoFunc = func; } function info(str) { gInfoFunc(str); } // --------------------------------------------------------------------------- // OS and driver identification // Stolen from dom/canvas/test/webgl/test_webgl_conformance_test_suite.html function detectDriverInfo() { try { var cc = SpecialPowers.Cc; } catch (e) { throw 'No SpecialPowers!'; } const Cc = SpecialPowers.Cc; const Ci = SpecialPowers.Ci; var doc = Cc["@mozilla.org/xmlextras/domparser;1"].createInstance(Ci.nsIDOMParser).parseFromString("", "text/html"); var canvas = doc.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"); // this extension is unconditionally available to chrome. No need to check. var webglRenderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL); var webglVendor = gl.getParameter(ext.UNMASKED_VENDOR_WEBGL); return [webglVendor, webglRenderer]; } function detectOSInfo() { try { var cc = SpecialPowers.Cc; } catch (e) { throw 'No SpecialPowers!'; } const Cc = SpecialPowers.Cc; const Ci = SpecialPowers.Ci; // From reftest.js: var runtime = Cc['@mozilla.org/xre/app-info;1'].getService(Ci.nsIXULRuntime); var os = null; var version = null; if (navigator.platform.indexOf('Win') == 0) { os = OS.WINDOWS; // code borrowed from browser/modules/test/browser_taskbar_preview.js version = SpecialPowers.Services.sysinfo.getProperty('version'); version = parseFloat(version); // 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 (runtime.widgetToolkit == 'gonk') { os = OS.B2G; } else if (navigator.appVersion.indexOf('Android') != -1) { os = OS.ANDROID; // From layout/tools/reftest/reftest.js: version = SpecialPowers.Services.sysinfo.getProperty('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', B2G: 'b2g', }; var DRIVER = { MESA: 'mesa', NVIDIA: 'nvidia', ANDROID_X86_EMULATOR: 'android x86 emulator', ANGLE: 'angle', }; var kOS = null; var kOSVersion = null; var kDriver = null; try { [kOS, kOSVersion] = detectOSInfo(); } catch (e) { // Generally just fails when we don't have SpecialPowers. } try { var glVendor, glRenderer; [glVendor, glRenderer] = detectDriverInfo(); info('GL vendor: ' + glVendor); info('GL renderer: ' + glRenderer); if (glRenderer.includes('llvmpipe')) { kDriver = DRIVER.MESA; } else if (glRenderer.includes('Android Emulator')) { kDriver = DRIVER.ANDROID_X86_EMULATOR; } else if (glRenderer.includes('ANGLE')) { kDriver = DRIVER.ANGLE; } else if (glVendor.includes('NVIDIA')) { kDriver = DRIVER.NVIDIA; } } catch (e) { // detectDriverInfo is fallible where WebGL fails. } if (kOS) { info('OS detected as: ' + kOS); info(' Version: ' + kOSVersion); } else { info('OS not detected.'); info(' `platform`: ' + navigator.platform); info(' `appVersion`: ' + navigator.appVersion); info(' `userAgent`: ' + navigator.userAgent); } if (kDriver) { info('GL driver detected as: ' + kDriver); } else { info('GL driver not detected.'); } return { setInfoFunc: setInfoFunc, OS: OS, DRIVER: DRIVER, getOS: function() { return kOS; }, getDriver: function() { return kDriver; }, getOSVersion: function() { return kOSVersion; }, }; })();