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1 <!-- |
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2 Copyright (c) 2011 The Chromium Authors. All rights reserved. |
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3 Use of this source code is governed by a BSD-style license that can be |
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4 found in the LICENSE file. |
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5 --> |
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6 <!DOCTYPE html> |
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7 <html> |
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8 <head> |
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9 <meta charset="utf-8"> |
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10 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
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11 <script src="../../resources/js-test-pre.js"></script> |
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12 <script src="../resources/webgl-test.js"></script> |
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13 <script src="../resources/webgl-test-utils.js"></script> |
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14 <script> |
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15 var wtu = WebGLTestUtils; |
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16 var gl = null; |
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17 var textureLoc = null; |
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18 var successfullyParsed = false; |
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19 |
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20 if (window.initNonKhronosFramework) { |
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21 window.initNonKhronosFramework(true); |
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22 } |
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23 |
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24 function init() |
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25 { |
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26 description('Verify texImage2D and texSubImage2D code paths taking Video Elements'); |
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27 |
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28 gl = wtu.create3DContext("example"); |
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29 var program = wtu.setupTexturedQuad(gl); |
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30 |
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31 gl.clearColor(0,0,0,1); |
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32 gl.clearDepth(1); |
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33 |
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34 textureLoc = gl.getUniformLocation(program, "tex"); |
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35 |
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36 var video = document.getElementById("vid"); |
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37 video.addEventListener( |
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38 "playing", function() { runTest(video); }, true); |
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39 video.loop = true; |
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40 video.play(); |
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41 } |
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42 |
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43 // These two declarations need to be global for "shouldBe" to see them |
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44 var buf = null; |
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45 var idx = 0; |
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46 var pixel = [0, 0, 0]; |
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47 var correctColor = null; |
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48 |
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49 function runOneIteration(videoElement, useTexSubImage2D, flipY, topColor, bottomColor) |
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50 { |
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51 debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + |
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52 ' with flipY=' + flipY); |
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53 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
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54 // Disable any writes to the alpha channel |
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55 gl.colorMask(1, 1, 1, 0); |
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56 var texture = gl.createTexture(); |
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57 // Bind the texture to texture unit 0 |
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58 gl.bindTexture(gl.TEXTURE_2D, texture); |
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59 // Set up texture parameters |
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60 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
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61 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
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62 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
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63 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
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64 // Set up pixel store parameters |
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65 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
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66 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
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67 // Upload the videoElement into the texture |
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68 if (useTexSubImage2D) { |
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69 // Initialize the texture to black first |
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70 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, |
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71 videoElement.videoWidth, videoElement.videoHeight, 0, |
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72 gl.RGBA, gl.UNSIGNED_BYTE, null); |
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73 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, videoElement); |
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74 } else { |
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75 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, videoElement); |
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76 } |
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77 |
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78 var c = document.createElement("canvas"); |
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79 c.width = 16; |
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80 c.height = 16; |
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81 c.style.border = "1px solid black"; |
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82 var ctx = c.getContext("2d"); |
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83 ctx.drawImage(videoElement, 0, 0, 16, 16); |
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84 document.body.appendChild(c); |
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85 |
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86 // Point the uniform sampler to texture unit 0 |
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87 gl.uniform1i(textureLoc, 0); |
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88 // Draw the triangles |
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89 wtu.drawQuad(gl, [0, 0, 0, 255]); |
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90 // Check a few pixels near the top and bottom and make sure they have |
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91 // the right color. |
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92 debug("Checking lower left corner"); |
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93 wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor, |
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94 "shouldBe " + bottomColor); |
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95 debug("Checking upper left corner"); |
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96 wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor, |
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97 "shouldBe " + topColor); |
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98 } |
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99 |
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100 function runTest(videoElement) |
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101 { |
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102 var red = [255, 0, 0]; |
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103 var green = [0, 255, 0]; |
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104 runOneIteration(videoElement, false, true, red, green); |
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105 runOneIteration(videoElement, false, false, green, red); |
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106 runOneIteration(videoElement, true, true, red, green); |
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107 runOneIteration(videoElement, true, false, green, red); |
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108 |
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109 glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); |
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110 videoElement.removeEventListener("playing", runTest); |
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111 finishTest(); |
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112 } |
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113 </script> |
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114 </head> |
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115 <body onload="init()"> |
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116 <canvas id="example" width="32px" height="32px"></canvas> |
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117 <div id="description"></div> |
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118 <div id="console"></div> |
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119 <video width="640" height="228" id="vid" controls> |
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120 <source src="../resources/red-green.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' /> |
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121 <source src="../resources/red-green.webmvp8.webm" type='video/webm; codecs="vp8, vorbis"' /> |
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122 <source src="../resources/red-green.theora.ogv" type='video/ogg; codecs="theora, vorbis"' /> |
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123 </video> |
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124 </body> |
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125 </html> |