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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;
},
};
})();
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