| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>Canvas test: 2d.imageData.object.ctor.basics</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/html/canvas/resources/canvas-tests.js"></script> |
| <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> |
| <body class="show_output"> |
| |
| <h1>2d.imageData.object.ctor.basics</h1> |
| <p class="desc">Testing different type of ImageData constructor</p> |
| |
| |
| <p class="output">Actual output:</p> |
| <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| |
| <ul id="d"></ul> |
| <script> |
| var t = async_test("Testing different type of ImageData constructor"); |
| _addTest(function(canvas, ctx) { |
| |
| function setRGBA(imageData, i, rgba) |
| { |
| var s = i * 4; |
| imageData[s] = rgba[0]; |
| imageData[s + 1] = rgba[1]; |
| imageData[s + 2] = rgba[2]; |
| imageData[s + 3] = rgba[3]; |
| } |
| |
| function getRGBA(imageData, i) |
| { |
| var result = []; |
| var s = i * 4; |
| for (var j = 0; j < 4; j++) { |
| result[j] = imageData[s + j]; |
| } |
| return result; |
| } |
| |
| function assertArrayEquals(actual, expected) |
| { |
| _assertSame(typeof actual, "object", "typeof actual", "\"object\""); |
| _assertDifferent(actual, null, "actual", "null"); |
| _assertSame("length" in actual, true, "\"length\" in actual", "true"); |
| _assertSame(actual.length, expected.length, "actual.length", "expected.length"); |
| for (var i = 0; i < actual.length; i++) { |
| _assertSame(actual.hasOwnProperty(i), expected.hasOwnProperty(i), "actual.hasOwnProperty(i)", "expected.hasOwnProperty(i)"); |
| _assertSame(actual[i], expected[i], "actual[\""+(i)+"\"]", "expected[\""+(i)+"\"]"); |
| } |
| } |
| |
| _assertDifferent(ImageData, undefined, "ImageData", "undefined"); |
| imageData = new ImageData(100, 50); |
| |
| _assertDifferent(imageData, null, "imageData", "null"); |
| _assertDifferent(imageData.data, null, "imageData.data", "null"); |
| _assertSame(imageData.width, 100, "imageData.width", "100"); |
| _assertSame(imageData.height, 50, "imageData.height", "50"); |
| assertArrayEquals(getRGBA(imageData.data, 4), [0, 0, 0, 0]); |
| |
| var testColor = [0, 255, 255, 128]; |
| setRGBA(imageData.data, 4, testColor); |
| assertArrayEquals(getRGBA(imageData.data, 4), testColor); |
| |
| assert_throws_js(TypeError, function() { new ImageData(10); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(0, 10); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(10, 0); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData('width', 'height'); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(1 << 31, 1 << 31); }); |
| assert_throws_js(TypeError, function() { new ImageData(new Uint8ClampedArray(0)); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(new Uint8Array(100), 25); }); |
| assert_throws_dom("INVALID_STATE_ERR", function() { new ImageData(new Uint8ClampedArray(27), 2); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(new Uint8ClampedArray(28), 7, 0); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(new Uint8ClampedArray(104), 14); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(new Uint8ClampedArray([12, 34, 168, 65328]), 1, 151); }); |
| assert_throws_js(TypeError, function() { new ImageData(self, 4, 4); }); |
| assert_throws_js(TypeError, function() { new ImageData(null, 4, 4); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(imageData.data, 0); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(imageData.data, 13); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(imageData.data, 1 << 31); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(imageData.data, 'biggish'); }); |
| assert_throws_dom("INDEX_SIZE_ERR", function() { new ImageData(imageData.data, 1 << 24, 1 << 31); }); |
| _assertSame(new ImageData(new Uint8ClampedArray(28), 7).height, 1, "new ImageData(new Uint8ClampedArray(28), 7).height", "1"); |
| |
| imageDataFromData = new ImageData(imageData.data, 100); |
| _assertSame(imageDataFromData.width, 100, "imageDataFromData.width", "100"); |
| _assertSame(imageDataFromData.height, 50, "imageDataFromData.height", "50"); |
| _assertSame(imageDataFromData.data, imageData.data, "imageDataFromData.data", "imageData.data"); |
| assertArrayEquals(getRGBA(imageDataFromData.data, 10), getRGBA(imageData.data, 10)); |
| setRGBA(imageData.data, 10, testColor); |
| assertArrayEquals(getRGBA(imageDataFromData.data, 10), getRGBA(imageData.data, 10)); |
| |
| var data = new Uint8ClampedArray(400); |
| data[22] = 129; |
| imageDataFromData = new ImageData(data, 20, 5); |
| _assertSame(imageDataFromData.width, 20, "imageDataFromData.width", "20"); |
| _assertSame(imageDataFromData.height, 5, "imageDataFromData.height", "5"); |
| _assertSame(imageDataFromData.data, data, "imageDataFromData.data", "data"); |
| assertArrayEquals(getRGBA(imageDataFromData.data, 2), getRGBA(data, 2)); |
| setRGBA(imageDataFromData.data, 2, testColor); |
| assertArrayEquals(getRGBA(imageDataFromData.data, 2), getRGBA(data, 2)); |
| |
| if (window.SharedArrayBuffer) { |
| assert_throws_js(TypeError, function() { new ImageData(new Uint16Array(new SharedArrayBuffer(32)), 4, 2); }); |
| } |
| |
| |
| }); |
| </script> |
| |