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-rw-r--r--testing/web-platform/tests/html/canvas/resources/canvas-tests.js221
1 files changed, 221 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/resources/canvas-tests.js b/testing/web-platform/tests/html/canvas/resources/canvas-tests.js
new file mode 100644
index 0000000000..c6e2873283
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/resources/canvas-tests.js
@@ -0,0 +1,221 @@
+function _valToString(val)
+{
+ if (val === undefined || val === null)
+ return '[' + typeof(val) + ']';
+ return val.toString() + '[' + typeof(val) + ']';
+}
+
+function _assert(cond, text)
+{
+ assert_true(!!cond, text);
+}
+
+function _assertSame(a, b, text_a, text_b)
+{
+ var msg = text_a + ' === ' + text_b + ' (got ' + _valToString(a) +
+ ', expected ' + _valToString(b) + ')';
+ assert_equals(a, b, msg);
+}
+
+function _assertDifferent(a, b, text_a, text_b)
+{
+ var msg = text_a + ' !== ' + text_b + ' (got ' + _valToString(a) +
+ ', expected not ' + _valToString(b) + ')';
+ assert_not_equals(a, b, msg);
+}
+
+
+function _getPixel(canvas, x,y)
+{
+ var ctx = canvas.getContext('2d');
+ var imgdata = ctx.getImageData(x, y, 1, 1);
+ return [ imgdata.data[0], imgdata.data[1], imgdata.data[2], imgdata.data[3] ];
+}
+
+function _assertPixel(canvas, x, y, r, g, b, a)
+{
+ var c = _getPixel(canvas, x,y);
+ assert_equals(c[0], r, 'Red channel of the pixel at (' + x + ', ' + y + ')');
+ assert_equals(c[1], g, 'Green channel of the pixel at (' + x + ', ' + y + ')');
+ assert_equals(c[2], b, 'Blue channel of the pixel at (' + x + ', ' + y + ')');
+ assert_equals(c[3], a, 'Alpha channel of the pixel at (' + x + ', ' + y + ')');
+}
+
+function _assertPixelApprox(canvas, x, y, r, g, b, a, tolerance)
+{
+ var c = _getPixel(canvas, x,y);
+ assert_approx_equals(c[0], r, tolerance, 'Red channel of the pixel at (' + x + ', ' + y + ')');
+ assert_approx_equals(c[1], g, tolerance, 'Green channel of the pixel at (' + x + ', ' + y + ')');
+ assert_approx_equals(c[2], b, tolerance, 'Blue channel of the pixel at (' + x + ', ' + y + ')');
+ assert_approx_equals(c[3], a, tolerance, 'Alpha channel of the pixel at (' + x + ', ' + y + ')');
+}
+
+function _assertMatricesApproxEqual(matA, matB)
+{
+ A = matA.toFloat32Array();
+ B = matB.toFloat32Array();
+ assert_equals(A.length, B.length);
+ for (var i = 0; i < A.length; i++) {
+ assert_approx_equals(A[i], B[i], 10e-6);
+ }
+}
+
+function rad2deg(angle_in_radians) {
+ return angle_in_radians / Math.PI * 180;
+}
+
+function deg2rad(angle_in_degrees) {
+ return angle_in_degrees / 180 * Math.PI;
+}
+
+let _deferred = false;
+
+function deferTest() {
+ _deferred = true;
+}
+
+function _addTest(testFn, attributes={})
+{
+ on_event(window, "load", function()
+ {
+ t.step(function() {
+ var canvas = document.getElementById('c');
+ var ctx = canvas.getContext('2d', attributes);
+ t.step(testFn, window, canvas, ctx);
+ });
+
+ if (!_deferred) {
+ t.done();
+ }
+ });
+}
+
+function _assertGreen(ctx, canvasWidth, canvasHeight)
+{
+ var testColor = function(d, idx, expected) {
+ assert_equals(d[idx], expected, "d[" + idx + "]", String(expected));
+ };
+ var imagedata = ctx.getImageData(0, 0, canvasWidth, canvasHeight);
+ var w = imagedata.width, h = imagedata.height, d = imagedata.data;
+ for (var i = 0; i < h; ++i) {
+ for (var j = 0; j < w; ++j) {
+ testColor(d, 4 * (w * i + j) + 0, 0);
+ testColor(d, 4 * (w * i + j) + 1, 255);
+ testColor(d, 4 * (w * i + j) + 2, 0);
+ testColor(d, 4 * (w * i + j) + 3, 255);
+ }
+ }
+}
+
+function addCrossOriginYellowImage()
+{
+ var img = new Image();
+ img.id = "yellow.png";
+ img.className = "resource";
+ img.src = get_host_info().HTTP_REMOTE_ORIGIN + "/images/yellow.png";
+ document.body.appendChild(img);
+}
+
+function addCrossOriginRedirectYellowImage()
+{
+ var img = new Image();
+ img.id = "yellow.png";
+ img.className = "resource";
+ img.src = get_host_info().HTTP_ORIGIN + "/common/redirect.py?location=" +
+ get_host_info().HTTP_REMOTE_ORIGIN + "/images/yellow.png";
+ document.body.appendChild(img);
+}
+
+function forEachCanvasSource(crossOriginUrl, sameOriginUrl, callback) {
+ function makeImage() {
+ return new Promise((resolve, reject) => {
+ const image = new Image();
+ image.onload = () => resolve(image);
+ image.onerror = reject;
+ image.src = crossOriginUrl + "/images/red.png";
+ });
+ }
+
+ const arguments = [
+ {
+ name: "cross-origin HTMLImageElement",
+ factory: makeImage,
+ },
+
+ {
+ name: "cross-origin SVGImageElement",
+ factory: () => {
+ return new Promise((resolve, reject) => {
+ const image = document.createElementNS("http://www.w3.org/2000/svg", "image");
+ image.onload = () => resolve(image);
+ image.onerror = reject;
+ image.setAttribute("externalResourcesRequired", "true");
+ image.setAttributeNS("http://www.w3.org/1999/xlink", 'xlink:href', crossOriginUrl + "/images/red.png");
+ document.body.appendChild(image);
+ });
+ },
+ },
+
+ {
+ name: "cross-origin HTMLVideoElement",
+ factory: () => {
+ return new Promise((resolve, reject) => {
+ const video = document.createElement("video");
+ video.oncanplaythrough = () => resolve(video);
+ video.preload = "auto";
+ video.onerror = reject;
+ video.src = getVideoURI(crossOriginUrl + "/media/movie_300");
+ });
+ },
+ },
+
+ {
+ name: "redirected to cross-origin HTMLVideoElement",
+ factory: () => {
+ return new Promise((resolve, reject) => {
+ const video = document.createElement("video");
+ video.oncanplaythrough = () => resolve(video);
+ video.preload = "auto";
+ video.onerror = reject;
+ video.src = "/common/redirect.py?location=" + getVideoURI(crossOriginUrl + "/media/movie_300");
+ });
+ },
+ },
+
+ {
+ name: "redirected to same-origin HTMLVideoElement",
+ factory: () => {
+ return new Promise((resolve, reject) => {
+ const video = document.createElement("video");
+ video.oncanplaythrough = () => resolve(video);
+ video.preload = "auto";
+ video.onerror = reject;
+ video.src = crossOriginUrl + "/common/redirect.py?location=" + getVideoURI(sameOriginUrl + "/media/movie_300");
+ });
+ },
+ },
+
+ {
+ name: "unclean HTMLCanvasElement",
+ factory: () => {
+ return makeImage().then(image => {
+ const canvas = document.createElement("canvas");
+ const context = canvas.getContext("2d");
+ context.drawImage(image, 0, 0);
+ return canvas;
+ });
+ },
+ },
+
+ {
+ name: "unclean ImageBitmap",
+ factory: () => {
+ return makeImage().then(createImageBitmap);
+ },
+ },
+ ];
+
+ for (let { name, factory } of arguments) {
+ callback(name, factory);
+ }
+}