| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library canvas_rendering_context_2d_test; |
| |
| import 'dart:html'; |
| import 'dart:math'; |
| |
| import 'package:unittest/html_individual_config.dart'; |
| import 'package:unittest/unittest.dart'; |
| |
| // Some rounding errors in the browsers. |
| checkPixel(List<int> pixel, List<int> expected) { |
| expect(pixel[0], closeTo(expected[0], 2)); |
| expect(pixel[1], closeTo(expected[1], 2)); |
| expect(pixel[2], closeTo(expected[2], 2)); |
| expect(pixel[3], closeTo(expected[3], 2)); |
| } |
| |
| var canvas; |
| var context; |
| var otherCanvas; |
| var otherContext; |
| var video; |
| |
| void createCanvas() { |
| canvas = new CanvasElement(); |
| canvas.width = 100; |
| canvas.height = 100; |
| |
| context = canvas.context2D; |
| } |
| |
| void createOtherCanvas() { |
| otherCanvas = new CanvasElement(); |
| otherCanvas.width = 10; |
| otherCanvas.height = 10; |
| otherContext = otherCanvas.context2D; |
| otherContext.fillStyle = "red"; |
| otherContext.fillRect(0, 0, otherCanvas.width, otherCanvas.height); |
| } |
| |
| void setupFunc() { |
| createCanvas(); |
| createOtherCanvas(); |
| video = new VideoElement(); |
| } |
| |
| void tearDownFunc() { |
| canvas = null; |
| context = null; |
| otherCanvas = null; |
| otherContext = null; |
| video = null; |
| } |
| |
| List<int> readPixel(int x, int y) { |
| var imageData = context.getImageData(x, y, 1, 1); |
| return imageData.data; |
| } |
| |
| /// Returns true if the pixel has some data in it, false otherwise. |
| bool isPixelFilled(int x, int y) => readPixel(x,y).any((p) => p != 0); |
| |
| String pixelDataToString(List<int> data, int x, int y) { |
| return '[${data.join(", ")}]'; |
| } |
| |
| String _filled(bool v) => v ? "filled" : "unfilled"; |
| |
| void expectPixelFilled(int x, int y, [bool filled = true]) { |
| expect(isPixelFilled(x, y), filled, reason: |
| 'Pixel at ($x, $y) was expected to' |
| ' be: <${_filled(filled)}> but was: <${_filled(!filled)}> with data: ' |
| '${pixelDataToString(readPixel(x, y), x, y)}'); |
| } |
| |
| void expectPixelUnfilled(int x, int y) { |
| expectPixelFilled(x, y, false); |
| } |
| |
| main() { |
| useHtmlIndividualConfiguration(); |
| |
| group('pixel_manipulation', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| test('setFillColorRgb', () { |
| context.setFillColorRgb(255, 0, 255, 1); |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| expect(readPixel(2, 2), [255, 0, 255, 255]); |
| }); |
| |
| test('setFillColorHsl hue', () { |
| context.setFillColorHsl(0, 100, 50); |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| checkPixel(readPixel(2, 2), [255, 0, 0, 255]); |
| }); |
| |
| test('setFillColorHsl hue 2', () { |
| context.setFillColorHsl(240, 100, 50); |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| checkPixel(readPixel(2, 2), [0, 0, 255, 255]); |
| }); |
| |
| test('setFillColorHsl sat', () { |
| context.setFillColorHsl(0, 0, 50); |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| checkPixel(readPixel(2, 2), [127, 127, 127, 255]); |
| }); |
| |
| test('setStrokeColorRgb', () { |
| context.setStrokeColorRgb(255, 0, 255, 1); |
| context.lineWidth = 10; |
| context.strokeRect(0, 0, canvas.width, canvas.height); |
| expect(readPixel(2, 2), [255, 0, 255, 255]); |
| }); |
| |
| test('setStrokeColorHsl hue', () { |
| context.setStrokeColorHsl(0, 100, 50); |
| context.lineWidth = 10; |
| context.strokeRect(0, 0, canvas.width, canvas.height); |
| expect(readPixel(2, 2), [255, 0, 0, 255]); |
| }); |
| |
| test('setStrokeColorHsl hue 2', () { |
| context.setStrokeColorHsl(240, 100, 50); |
| context.lineWidth = 10; |
| context.strokeRect(0, 0, canvas.width, canvas.height); |
| expect(readPixel(2, 2), [0, 0, 255, 255]); |
| }); |
| |
| test('setStrokeColorHsl sat', () { |
| context.setStrokeColorHsl(0, 0, 50); |
| context.lineWidth = 10; |
| context.strokeRect(0, 0, canvas.width, canvas.height); |
| checkPixel(readPixel(2, 2), [127, 127, 127, 255]); |
| }); |
| |
| test('fillStyle', () { |
| context.fillStyle = "red"; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| checkPixel(readPixel(2, 2), [255, 0, 0, 255]); |
| }); |
| |
| test('strokeStyle', () { |
| context.strokeStyle = "blue"; |
| context.lineWidth = 10; |
| context.strokeRect(0, 0, canvas.width, canvas.height); |
| expect(readPixel(2, 2), [0, 0, 255, 255]); |
| }); |
| |
| test('fillStyle linearGradient', () { |
| var gradient = context.createLinearGradient(0,0,20,20); |
| gradient.addColorStop(0,'red'); |
| gradient.addColorStop(1,'blue'); |
| context.fillStyle = gradient; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| expect(context.fillStyle is CanvasGradient, isTrue); |
| }); |
| |
| test('putImageData', () { |
| context.fillStyle = 'green'; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| |
| ImageData expectedData = context.getImageData(0, 0, 10, 10); |
| expectedData.data[0] = 25; |
| expectedData.data[1] = 65; |
| expectedData.data[2] = 255; |
| // Set alpha to 255 to make the pixels show up. |
| expectedData.data[3] = 255; |
| |
| context.putImageData(expectedData, 0, 0); |
| |
| var resultingData = context.getImageData(0, 0, 10, 10); |
| // Make sure that we read back what we wrote. |
| expect(resultingData.data, expectedData.data); |
| }); |
| |
| test('putImageData dirty rectangle', () { |
| context.fillStyle = 'green'; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| |
| ImageData drawnData = context.getImageData(0, 0, 10, 10); |
| drawnData.data[0] = 25; |
| drawnData.data[1] = 65; |
| drawnData.data[2] = 255; |
| drawnData.data[3] = 255; |
| |
| // Draw these pixels to the 2nd pixel. |
| drawnData.data[2 * 4 + 0] = 25; |
| drawnData.data[2 * 4 + 1] = 65; |
| drawnData.data[2 * 4 + 2] = 255; |
| drawnData.data[2 * 4 + 3] = 255; |
| |
| // Draw these pixels to the 8th pixel. |
| drawnData.data[7 * 4 + 0] = 25; |
| drawnData.data[7 * 4 + 1] = 65; |
| drawnData.data[7 * 4 + 2] = 255; |
| drawnData.data[7 * 4 + 3] = 255; |
| |
| // Use a dirty rectangle to limit what pixels are drawn. |
| context.putImageData(drawnData, 0, 0, 1, 0, 5, 5); |
| |
| // Expect the data to be all green, as we skip all drawn pixels. |
| ImageData expectedData = context.createImageData(10, 10); |
| for (int i = 0; i < expectedData.data.length; i++) { |
| switch (i % 4) { |
| case 0: |
| expectedData.data[i] = 0; |
| break; |
| case 1: |
| expectedData.data[i] = 128; |
| break; |
| case 2: |
| expectedData.data[i] = 0; |
| break; |
| case 3: |
| expectedData.data[i] = 255; |
| break; |
| } |
| } |
| // Third pixel was copied. |
| expectedData.data[2 * 4 + 0] = 25; |
| expectedData.data[2 * 4 + 1] = 65; |
| expectedData.data[2 * 4 + 2] = 255; |
| expectedData.data[2 * 4 + 3] = 255; |
| |
| // Make sure that our data is all green. |
| var resultingData = context.getImageData(0, 0, 10, 10); |
| expect(resultingData.data, expectedData.data); |
| }); |
| |
| test('putImageData throws with wrong number of arguments', () { |
| ImageData expectedData = context.getImageData(0, 0, 10, 10); |
| |
| // TODO(antonm): in Dartium ArgumentError should be thrown too. |
| expect(() => context.putImageData(expectedData, 0, 0, 1), |
| throws); |
| expect(() => context.putImageData(expectedData, 0, 0, 1, 1), |
| throws); |
| expect(() => context.putImageData(expectedData, 0, 0, 1, 1, 5), |
| throws); |
| }); |
| }); |
| |
| group('arc', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| test('default arc should be clockwise', () { |
| context.beginPath(); |
| final r = 10; |
| |
| // Center of arc. |
| final cx = 20; |
| final cy = 20; |
| // Arc centered at (20, 20) with radius 10 will go clockwise |
| // from (20 + r, 20) to (20, 20 + r), which is 1/4 of a circle. |
| context.arc(cx, cy, r, 0, PI/2); |
| |
| context.strokeStyle = 'green'; |
| context.lineWidth = 2; |
| context.stroke(); |
| |
| // Center should not be filled. |
| expectPixelUnfilled(cx, cy); |
| |
| // (cx + r, cy) should be filled. |
| expectPixelFilled(cx + r, cy, true); |
| // (cx, cy + r) should be filled. |
| expectPixelFilled(cx, cy + r, true); |
| // (cx - r, cy) should be empty. |
| expectPixelFilled(cx - r, cy, false); |
| // (cx, cy - r) should be empty. |
| expectPixelFilled(cx, cy - r, false); |
| |
| // (cx + r/SQRT2, cy + r/SQRT2) should be filled. |
| expectPixelFilled((cx + r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), true); |
| |
| // (cx - r/SQRT2, cy - r/SQRT2) should be empty. |
| expectPixelFilled((cx - r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), false); |
| |
| // (cx + r/SQRT2, cy + r/SQRT2) should be empty. |
| expectPixelFilled((cx - r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), false); |
| |
| // (cx - r/SQRT2, cy - r/SQRT2) should be empty. |
| expectPixelFilled((cx + r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), false); |
| }); |
| |
| test('arc anticlockwise', () { |
| context.beginPath(); |
| final r = 10; |
| |
| // Center of arc. |
| final cx = 20; |
| final cy = 20; |
| // Arc centered at (20, 20) with radius 10 will go anticlockwise |
| // from (20 + r, 20) to (20, 20 + r), which is 3/4 of a circle. |
| // Because of the way arc work, when going anti-clockwise, the end points |
| // are not included, so small values are added to radius to make a little |
| // more than a 3/4 circle. |
| context.arc(cx, cy, r, .1, PI/2 - .1, true); |
| |
| context.strokeStyle = 'green'; |
| context.lineWidth = 2; |
| context.stroke(); |
| |
| // Center should not be filled. |
| expectPixelUnfilled(cx, cy); |
| |
| // (cx + r, cy) should be filled. |
| expectPixelFilled(cx + r, cy, true); |
| // (cx, cy + r) should be filled. |
| expectPixelFilled(cx, cy + r, true); |
| // (cx - r, cy) should be filled. |
| expectPixelFilled(cx - r, cy, true); |
| // (cx, cy - r) should be filled. |
| expectPixelFilled(cx, cy - r, true); |
| |
| // (cx + r/SQRT2, cy + r/SQRT2) should be empty. |
| expectPixelFilled((cx + r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), false); |
| |
| // (cx - r/SQRT2, cy - r/SQRT2) should be filled. |
| expectPixelFilled((cx - r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), true); |
| |
| // (cx + r/SQRT2, cy + r/SQRT2) should be filled. |
| expectPixelFilled((cx - r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), true); |
| |
| // (cx - r/SQRT2, cy - r/SQRT2) should be filled. |
| expectPixelFilled((cx + r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), true); |
| }); |
| }); |
| |
| group('drawImage_image_element', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| // Draw an image to the canvas from an image element. |
| test('with 3 params', () { |
| var dataUrl = otherCanvas.toDataUrl('image/gif'); |
| var img = new ImageElement(); |
| |
| img.onLoad.listen(expectAsync((_) { |
| context.drawImage(img, 50, 50); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelUnfilled(60, 60); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(70, 70); |
| })); |
| img.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| img.src = dataUrl; |
| }); |
| |
| // Draw an image to the canvas from an image element and scale it. |
| test('with 5 params', () { |
| var dataUrl = otherCanvas.toDataUrl('image/gif'); |
| var img = new ImageElement(); |
| |
| img.onLoad.listen(expectAsync((_) { |
| context.drawImageToRect(img, new Rectangle(50, 50, 20, 20)); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| })); |
| img.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| img.src = dataUrl; |
| }); |
| |
| // Draw an image to the canvas from an image element and scale it. |
| test('with 9 params', () { |
| otherContext.fillStyle = "blue"; |
| otherContext.fillRect(5, 5, 5, 5); |
| var dataUrl = otherCanvas.toDataUrl('image/gif'); |
| var img = new ImageElement(); |
| |
| img.onLoad.listen(expectAsync((_) { |
| // This will take a 6x6 square from the first canvas from position 2,2 |
| // and then scale it to a 20x20 square and place it to the second |
| // canvas at 50,50. |
| context.drawImageToRect(img, new Rectangle(50, 50, 20, 20), |
| sourceRect: new Rectangle(2, 2, 6, 6)); |
| |
| checkPixel(readPixel(50, 50), [255, 0, 0, 255]); |
| checkPixel(readPixel(55, 55), [255, 0, 0, 255]); |
| checkPixel(readPixel(60, 50), [255, 0, 0, 255]); |
| checkPixel(readPixel(65, 65), [0, 0, 255, 255]); |
| checkPixel(readPixel(69, 69), [0, 0, 255, 255]); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| })); |
| img.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| img.src = dataUrl; |
| }); |
| }); |
| |
| // These videos and base64 strings are the same video, representing 2 |
| // frames of 8x8 red pixels. |
| // The videos were created with: |
| // convert -size 8x8 xc:red blank1.jpg |
| // convert -size 8x8 xc:red blank2.jpg |
| // avconv -f image2 -i "blank%d.jpg" -c:v libx264 small.mp4 |
| // avconv -i small.mp4 small.webm |
| // python -m base64 -e small.mp4 |
| // python -m base64 -e small.webm |
| var mp4VideoUrl = '/root_dart/tests/html/small.mp4'; |
| var webmVideoUrl = '/root_dart/tests/html/small.webm'; |
| var mp4VideoDataUrl = |
| 'data:video/mp4;base64,AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAA' |
| 'AIZnJlZQAAAsdtZGF0AAACmwYF//+X3EXpvebZSLeWLNgg2SPu73gyNjQgLSBjb3JlID' |
| 'EyMCByMjE1MSBhM2Y0NDA3IC0gSC4yNjQvTVBFRy00IEFWQyBjb2RlYyAtIENvcHlsZW' |
| 'Z0IDIwMDMtMjAxMSAtIGh0dHA6Ly93d3cudmlkZW9sYW4ub3JnL3gyNjQuaHRtbCAtIG' |
| '9wdGlvbnM6IGNhYmFjPTEgcmVmPTMgZGVibG9jaz0xOjA6MCBhbmFseXNlPTB4MToweD' |
| 'ExMSBtZT1oZXggc3VibWU9NyBwc3k9MSBwc3lfcmQ9MS4wMDowLjAwIG1peGVkX3JlZj' |
| '0wIG1lX3JhbmdlPTE2IGNocm9tYV9tZT0xIHRyZWxsaXM9MSA4eDhkY3Q9MCBjcW09MC' |
| 'BkZWFkem9uZT0yMSwxMSBmYXN0X3Bza2lwPTEgY2hyb21hX3FwX29mZnNldD0tMiB0aH' |
| 'JlYWRzPTE4IHNsaWNlZF90aHJlYWRzPTAgbnI9MCBkZWNpbWF0ZT0xIGludGVybGFjZW' |
| 'Q9MCBibHVyYXlfY29tcGF0PTAgY29uc3RyYWluZWRfaW50cmE9MCBiZnJhbWVzPTMgYl' |
| '9weXJhbWlkPTAgYl9hZGFwdD0xIGJfYmlhcz0wIGRpcmVjdD0xIHdlaWdodGI9MCBvcG' |
| 'VuX2dvcD0xIHdlaWdodHA9MiBrZXlpbnQ9MjUwIGtleWludF9taW49MjUgc2NlbmVjdX' |
| 'Q9NDAgaW50cmFfcmVmcmVzaD0wIHJjX2xvb2thaGVhZD00MCByYz1jcmYgbWJ0cmVlPT' |
| 'EgY3JmPTUxLjAgcWNvbXA9MC42MCBxcG1pbj0wIHFwbWF4PTY5IHFwc3RlcD00IGlwX3' |
| 'JhdGlvPTEuMjUgYXE9MToxLjAwAIAAAAARZYiEB//3aoK5/tP9+8yeuIEAAAAHQZoi2P' |
| '/wgAAAAzxtb292AAAAbG12aGQAAAAAAAAAAAAAAAAAAAPoAAAAUAABAAABAAAAAAAAAA' |
| 'AAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAA' |
| 'AAAAAAAAAAAAAAAAAAAAACAAAAGGlvZHMAAAAAEICAgAcAT/////7/AAACUHRyYWsAAA' |
| 'BcdGtoZAAAAA8AAAAAAAAAAAAAAAEAAAAAAAAAUAAAAAAAAAAAAAAAAAAAAAAAAQAAAA' |
| 'AAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAACAAAAAgAAAAAACRlZHRzAAAAHG' |
| 'Vsc3QAAAAAAAAAAQAAAFAAAAABAAEAAAAAAchtZGlhAAAAIG1kaGQAAAAAAAAAAAAAAA' |
| 'AAAAAZAAAAAlXEAAAAAAAtaGRscgAAAAAAAAAAdmlkZQAAAAAAAAAAAAAAAFZpZGVvSG' |
| 'FuZGxlcgAAAAFzbWluZgAAABR2bWhkAAAAAQAAAAAAAAAAAAAAJGRpbmYAAAAcZHJlZg' |
| 'AAAAAAAAABAAAADHVybCAAAAABAAABM3N0YmwAAACXc3RzZAAAAAAAAAABAAAAh2F2Yz' |
| 'EAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAACAAIAEgAAABIAAAAAAAAAAEAAAAAAAAAAA' |
| 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY//8AAAAxYXZjQwFNQAr/4QAYZ01ACuiPyy' |
| '4C2QAAAwABAAADADIPEiUSAQAGaOvAZSyAAAAAGHN0dHMAAAAAAAAAAQAAAAIAAAABAA' |
| 'AAFHN0c3MAAAAAAAAAAQAAAAEAAAAYY3R0cwAAAAAAAAABAAAAAgAAAAEAAAAcc3RzYw' |
| 'AAAAAAAAABAAAAAQAAAAEAAAABAAAAHHN0c3oAAAAAAAAAAAAAAAIAAAK0AAAACwAAAB' |
| 'hzdGNvAAAAAAAAAAIAAAAwAAAC5AAAAGB1ZHRhAAAAWG1ldGEAAAAAAAAAIWhkbHIAAA' |
| 'AAAAAAAG1kaXJhcHBsAAAAAAAAAAAAAAAAK2lsc3QAAAAjqXRvbwAAABtkYXRhAAAAAQ' |
| 'AAAABMYXZmNTMuMjEuMQ=='; |
| var webmVideoDataUrl = |
| 'data:video/webm;base64,GkXfowEAAAAAAAAfQoaBAUL3gQFC8oEEQvOBCEKChHdlY' |
| 'm1Ch4ECQoWBAhhTgGcBAAAAAAAB/hFNm3RALE27i1OrhBVJqWZTrIHfTbuMU6uEFlSua' |
| '1OsggEsTbuMU6uEHFO7a1OsggHk7AEAAAAAAACkAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' |
| 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' |
| 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' |
| 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAVSalmAQAAAAAAA' |
| 'EEq17GDD0JATYCLTGF2ZjUzLjIxLjFXQYtMYXZmNTMuMjEuMXOkkJatuHwTJ7cvFLSzB' |
| 'Smxbp5EiYhAVAAAAAAAABZUrmsBAAAAAAAAR64BAAAAAAAAPteBAXPFgQGcgQAitZyDd' |
| 'W5khoVWX1ZQOIOBASPjg4QCYloA4AEAAAAAAAASsIEIuoEIVLCBCFS6gQhUsoEDH0O2d' |
| 'QEAAAAAAABZ54EAo72BAACA8AIAnQEqCAAIAABHCIWFiIWEiAICAnWqA/gD+gINTRgA/' |
| 'v0hRf/kb+PnRv/I4//8WE8DijI//FRAo5WBACgAsQEAARAQABgAGFgv9AAIAAAcU7trA' |
| 'QAAAAAAAA67jLOBALeH94EB8YIBfw=='; |
| group('drawImage_video_element', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| test('with 3 params', () { |
| video.onCanPlay.listen(expectAsync((_) { |
| context.drawImage(video, 50, 50); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(54, 54); |
| expectPixelFilled(57, 57); |
| expectPixelUnfilled(58, 58); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(70, 70); |
| })); |
| |
| video.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| |
| if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') { |
| video.src = webmVideoUrl; |
| } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"', |
| null) != '') { |
| video.src = mp4VideoUrl; |
| } else { |
| window.console.log('Video is not supported on this system.'); |
| } |
| }); |
| |
| test('with 5 params', () { |
| video.onCanPlay.listen(expectAsync((_) { |
| context.drawImageToRect(video, new Rectangle(50, 50, 20, 20)); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| })); |
| video.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| |
| if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') { |
| video.src = webmVideoUrl; |
| } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"', |
| null) != '') { |
| video.src = mp4VideoUrl; |
| } else { |
| // TODO(amouravski): Better fallback? |
| window.console.log('Video is not supported on this system.'); |
| } |
| }); |
| |
| test('with 9 params', () { |
| video.onCanPlay.listen(expectAsync((_) { |
| context.drawImageToRect(video, new Rectangle(50, 50, 20, 20), |
| sourceRect: new Rectangle(2, 2, 6, 6)); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| })); |
| video.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| |
| if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') { |
| video.src = webmVideoUrl; |
| } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"', |
| null) != '') { |
| video.src = mp4VideoUrl; |
| } else { |
| // TODO(amouravski): Better fallback? |
| window.console.log('Video is not supported on this system.'); |
| } |
| }); |
| }); |
| |
| group('drawImage_video_element_dataUrl', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| test('with 9 params', () { |
| video = new VideoElement(); |
| canvas = new CanvasElement(); |
| video.onCanPlay.listen(expectAsync((_) { |
| context.drawImageToRect(video, new Rectangle(50, 50, 20, 20), |
| sourceRect: new Rectangle(2, 2, 6, 6)); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| })); |
| video.onError.listen((_) { |
| fail('URL failed to load.'); |
| }); |
| |
| if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') { |
| video.src = webmVideoDataUrl; |
| } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"', |
| null) != '') { |
| video.src = mp4VideoDataUrl; |
| } else { |
| // TODO(amouravski): Better fallback? |
| window.console.log('Video is not supported on this system.'); |
| } |
| }); |
| }); |
| |
| group('drawImage_canvas_element', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| test('with 3 params', () { |
| // Draw an image to the canvas from a canvas element. |
| context.drawImage(otherCanvas, 50, 50); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelUnfilled(60, 60); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(70, 70); |
| }); |
| test('with 5 params', () { |
| // Draw an image to the canvas from a canvas element. |
| context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20)); |
| |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| }); |
| test('with 9 params', () { |
| // Draw an image to the canvas from a canvas element. |
| otherContext.fillStyle = "blue"; |
| otherContext.fillRect(5, 5, 5, 5); |
| context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20), |
| sourceRect: new Rectangle(2, 2, 6, 6)); |
| |
| checkPixel(readPixel(50, 50), [255, 0, 0, 255]); |
| checkPixel(readPixel(55, 55), [255, 0, 0, 255]); |
| checkPixel(readPixel(60, 50), [255, 0, 0, 255]); |
| checkPixel(readPixel(65, 65), [0, 0, 255, 255]); |
| checkPixel(readPixel(69, 69), [0, 0, 255, 255]); |
| expectPixelFilled(50, 50); |
| expectPixelFilled(55, 55); |
| expectPixelFilled(59, 59); |
| expectPixelFilled(60, 60); |
| expectPixelFilled(69, 69); |
| expectPixelUnfilled(70, 70); |
| expectPixelUnfilled(0, 0); |
| expectPixelUnfilled(80, 80); |
| }); |
| |
| test('createImageData', () { |
| var imageData = context.createImageData(15, 15); |
| expect(imageData.width, 15); |
| expect(imageData.height, 15); |
| |
| var other = context.createImageDataFromImageData(imageData); |
| expect(other.width, 15); |
| expect(other.height, 15); |
| }); |
| |
| test('createPattern', () { |
| var pattern = context.createPattern(new CanvasElement(), ''); |
| //var pattern2 = context.createPatternFromImage(new ImageElement(), ''); |
| }); |
| }); |
| |
| group('fillText', () { |
| setUp(setupFunc); |
| tearDown(tearDownFunc); |
| |
| final x = 20; |
| final y = 20; |
| |
| test('without maxWidth', () { |
| context.font = '40pt Garamond'; |
| context.fillStyle = 'blue'; |
| |
| // Draw a blue box. |
| context.fillText('█', x, y); |
| |
| var width = context.measureText('█').width.ceil(); |
| |
| checkPixel(readPixel(x, y), [0, 0, 255, 255]); |
| checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]); |
| |
| expectPixelUnfilled(x - 10, y); |
| expectPixelFilled(x, y); |
| expectPixelFilled(x + 10, y); |
| |
| // The box does not draw after `width` pixels. |
| // Check -2 rather than -1 because this seems |
| // to run into a rounding error on Mac bots. |
| expectPixelFilled(x + width - 2, y); |
| expectPixelUnfilled(x + width + 1, y); |
| }); |
| |
| test('with maxWidth null', () { |
| context.font = '40pt Garamond'; |
| context.fillStyle = 'blue'; |
| |
| // Draw a blue box with null maxWidth. |
| context.fillText('█', x, y, null); |
| |
| var width = context.measureText('█').width.ceil(); |
| |
| checkPixel(readPixel(x, y), [0, 0, 255, 255]); |
| checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]); |
| |
| expectPixelUnfilled(x - 10, y); |
| expectPixelFilled(x, y); |
| expectPixelFilled(x + 10, y); |
| |
| // The box does not draw after `width` pixels. |
| // Check -2 rather than -1 because this seems |
| // to run into a rounding error on Mac bots. |
| expectPixelFilled(x + width - 2, y); |
| expectPixelUnfilled(x + width + 1, y); |
| }); |
| |
| test('with maxWidth defined', () { |
| context.font = '40pt Garamond'; |
| context.fillStyle = 'blue'; |
| |
| final maxWidth = 20; |
| |
| // Draw a blue box that's at most 20 pixels wide. |
| context.fillText('█', x, y, maxWidth); |
| |
| checkPixel(readPixel(x, y), [0, 0, 255, 255]); |
| checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]); |
| |
| // The box does not draw after 20 pixels. |
| expectPixelUnfilled(x - 10, y); |
| expectPixelUnfilled(x + maxWidth + 1, y); |
| expectPixelUnfilled(x + maxWidth + 20, y); |
| expectPixelFilled(x, y); |
| expectPixelFilled(x + 10, y); |
| }); |
| }); |
| } |
