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https://github.com/mozilla/gecko-dev.git
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168 lines
5.6 KiB
JavaScript
168 lines
5.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { utils: Cu, interfaces: Ci, classes: Cc, results: Cr } = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import('resource://gre/modules/Preferences.jsm');
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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const PAGE_WIDTH=72;
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const PAGE_HEIGHT=136;
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const DRIVER_PREF="sanity-test.driver-version";
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const DEVICE_PREF="sanity-test.device-id";
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const VERSION_PREF="sanity-test.version";
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const DISABLE_VIDEO_PREF="media.hardware-video-decoding.failed";
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const RUNNING_PREF="sanity-test.running";
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// GRAPHICS_SANITY_TEST histogram enumeration values
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const TEST_PASSED=0;
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const TEST_FAILED_RENDER=1;
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const TEST_FAILED_VIDEO=2;
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const TEST_CRASHED=3;
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function testPixel(ctx, x, y, r, g, b, a, fuzz) {
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var data = ctx.getImageData(x, y, 1, 1);
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if (Math.abs(data.data[0] - r) <= fuzz &&
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Math.abs(data.data[1] - g) <= fuzz &&
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Math.abs(data.data[2] - b) <= fuzz &&
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Math.abs(data.data[3] - a) <= fuzz) {
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return true;
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}
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return false;
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}
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function reportResult(val) {
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try {
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let histogram = Services.telemetry.getHistogramById("GRAPHICS_SANITY_TEST");
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histogram.add(val);
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} catch (e) {}
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Preferences.set(RUNNING_PREF, false);
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Services.prefs.savePrefFile(null);
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}
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function takeWindowSnapshot(win, ctx) {
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// Take a snapshot of the window contents, and then close the window
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//
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// TODO: drawWindow reads back from the gpu's backbuffer, which won't catch issues with presenting
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// the front buffer via the window manager. Ideally we'd use an OS level API for reading back
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// from the desktop itself to get a more accurate test.
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var flags = ctx.DRAWWINDOW_DRAW_CARET | ctx.DRAWWINDOW_DRAW_VIEW | ctx.DRAWWINDOW_USE_WIDGET_LAYERS;
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ctx.drawWindow(win.ownerGlobal, 0, 0, PAGE_WIDTH, PAGE_HEIGHT, "rgb(255,255,255)", flags);
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}
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// Verify that all the 4 coloured squares of the video
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// render as expected (with a tolerance of 64 to allow for
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// yuv->rgb differences between platforms).
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//
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// The video is 64x64, and is split into quadrants of
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// different colours. The top left of the video is 8,72
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// and we test a pixel 10,10 into each quadrant to avoid
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// blending differences at the edges.
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//
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// We allow massive amounts of fuzz for the colours since
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// it can depend hugely on the yuv -> rgb conversion, and
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// we don't want to fail unnecessarily.
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function verifyVideoRendering(ctx) {
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return testPixel(ctx, 18, 82, 255, 255, 255, 255, 64) &&
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testPixel(ctx, 50, 82, 0, 255, 0, 255, 64) &&
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testPixel(ctx, 18, 114, 0, 0, 255, 255, 64) &&
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testPixel(ctx, 50, 114, 255, 0, 0, 255, 64);
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}
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function testCompositor(win, ctx) {
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takeWindowSnapshot(win, ctx);
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if (!verifyVideoRendering(ctx)) {
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reportResult(TEST_FAILED_VIDEO);
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Preferences.set(DISABLE_VIDEO_PREF, true);
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return false;
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}
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reportResult(TEST_PASSED);
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return true;
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}
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let listener = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
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win: null,
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canvas: null,
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scheduleTest: function(win) {
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this.win = win;
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this.win.onload = this.onWindowLoaded.bind(this);
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},
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onWindowLoaded: function() {
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this.canvas = this.win.document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
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this.canvas.setAttribute("width", PAGE_WIDTH);
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this.canvas.setAttribute("height", PAGE_HEIGHT);
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this.ctx = this.canvas.getContext("2d");
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testCompositor(this.win, this.ctx);
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this.win.ownerGlobal.close();
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},
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};
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function SanityTest() {}
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SanityTest.prototype = {
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classID: Components.ID("{f3a8ca4d-4c83-456b-aee2-6a2cbf11e9bd}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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shouldRunTest: function() {
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// Only test gfx features if firefox has updated, or if the user has a new
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// gpu or drivers.
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var appInfo = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULAppInfo);
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var xulVersion = appInfo.version;
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var gfxinfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
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if (Preferences.get(RUNNING_PREF, false)) {
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Preferences.set(DISABLE_VIDEO_PREF, true);
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reportResult(TEST_CRASHED);
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return false;
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}
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// TODO: Handle dual GPU setups
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if (Preferences.get(DRIVER_PREF, "") == gfxinfo.adapterDriverVersion &&
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Preferences.get(DEVICE_PREF, "") == gfxinfo.adapterDeviceID &&
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Preferences.get(VERSION_PREF, "") == xulVersion) {
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return false;
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}
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// Enable hardware decoding so we can test again
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// and record the driver version to detect if the driver changes.
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Preferences.set(DISABLE_VIDEO_PREF, false);
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Preferences.set(DRIVER_PREF, gfxinfo.adapterDriverVersion);
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Preferences.set(DEVICE_PREF, gfxinfo.adapterDeviceID);
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Preferences.set(VERSION_PREF, xulVersion);
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// Update the prefs so that this test doesn't run again until the next update.
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Preferences.set(RUNNING_PREF, true);
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Services.prefs.savePrefFile(null);
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return true;
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},
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observe: function(subject, topic, data) {
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if (topic != "profile-after-change") return;
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if (!this.shouldRunTest()) return;
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// Open a tiny window to render our test page, and notify us when it's loaded
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var sanityTest = Services.ww.openWindow(null,
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"chrome://gfxsanity/content/sanitytest.html",
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"Test Page",
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"width=" + PAGE_WIDTH + ",height=" + PAGE_HEIGHT + ",chrome,titlebar=0,scrollbars=0",
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null);
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listener.scheduleTest(sanityTest);
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},
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SanityTest]);
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