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| 1 <!-- |
| 2 Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 3 Use of this source code is governed by a BSD-style license that can be |
| 4 found in the LICENSE file. |
| 5 --> |
| 6 <!DOCTYPE html> |
| 7 <html> |
| 8 <head> |
| 9 <meta charset="utf-8"> |
| 10 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 11 <script src="../../resources/js-test-pre.js"></script> |
| 12 <script src="../resources/webgl-test.js"></script> |
| 13 <script src="../resources/webgl-test-utils.js"></script> |
| 14 <script> |
| 15 var wtu = WebGLTestUtils; |
| 16 var gl = null; |
| 17 var textureLoc = null; |
| 18 var successfullyParsed = false; |
| 19 var imgCanvas; |
| 20 |
| 21 function init() |
| 22 { |
| 23 if (window.initNonKhronosFramework) { |
| 24 window.initNonKhronosFramework(true); |
| 25 } |
| 26 |
| 27 description('Verify texImage2D and texSubImage2D code paths taking Images'); |
| 28 |
| 29 var canvas = document.getElementById("example"); |
| 30 gl = wtu.create3DContext(canvas); |
| 31 var program = wtu.setupTexturedQuad(gl); |
| 32 |
| 33 gl.clearColor(0,0,0,1); |
| 34 gl.clearDepth(1); |
| 35 |
| 36 textureLoc = gl.getUniformLocation(program, "tex"); |
| 37 |
| 38 wtu.loadTexture(gl, "../resources/red-green.png", runTest); |
| 39 } |
| 40 |
| 41 // These two declarations need to be global for "shouldBe" to see them |
| 42 var buf = null; |
| 43 var idx = 0; |
| 44 var pixel = [0, 0, 0]; |
| 45 var correctColor = null; |
| 46 |
| 47 function runOneIteration(image, useTexSubImage2D, flipY, topColor, bottomColor) |
| 48 { |
| 49 debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + |
| 50 ' with flipY=' + flipY); |
| 51 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 52 // Disable any writes to the alpha channel |
| 53 gl.colorMask(1, 1, 1, 0); |
| 54 var texture = gl.createTexture(); |
| 55 // Bind the texture to texture unit 0 |
| 56 gl.bindTexture(gl.TEXTURE_2D, texture); |
| 57 // Set up texture parameters |
| 58 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| 59 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| 60 // Set up pixel store parameters |
| 61 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
| 62 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| 63 gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE); |
| 64 // Upload the image into the texture |
| 65 if (useTexSubImage2D) { |
| 66 // Initialize the texture to black first |
| 67 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, image.width, image.height, 0, |
| 68 gl.RGBA, gl.UNSIGNED_BYTE, null); |
| 69 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, imag
e); |
| 70 } else { |
| 71 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, imag
e); |
| 72 } |
| 73 |
| 74 // Point the uniform sampler to texture unit 0 |
| 75 gl.uniform1i(textureLoc, 0); |
| 76 // Draw the triangles |
| 77 wtu.drawQuad(gl, [0, 0, 0, 255]); |
| 78 // Check a few pixels near the top and bottom and make sure they have |
| 79 // the right color. |
| 80 debug("Checking lower left corner"); |
| 81 wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor, |
| 82 "shouldBe " + bottomColor); |
| 83 debug("Checking upper left corner"); |
| 84 wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor, |
| 85 "shouldBe " + topColor); |
| 86 } |
| 87 |
| 88 function runTestOnImage(image) { |
| 89 var red = [255, 0, 0]; |
| 90 var green = [0, 255, 0]; |
| 91 runOneIteration(image, false, true, red, green); |
| 92 runOneIteration(image, false, false, green, red); |
| 93 runOneIteration(image, true, true, red, green); |
| 94 runOneIteration(image, true, false, green, red); |
| 95 } |
| 96 |
| 97 function runTest(image) |
| 98 { |
| 99 runTestOnImage(image); |
| 100 |
| 101 imgCanvas = document.createElement("canvas"); |
| 102 imgCanvas.width = 1; |
| 103 imgCanvas.height = 2; |
| 104 var imgCtx = imgCanvas.getContext("2d"); |
| 105 imgCtx.drawImage(image, 0, 0); |
| 106 |
| 107 // apparently Image is different than <img>. |
| 108 var newImage = new Image(); |
| 109 newImage.onload = function() { |
| 110 runTest2(newImage); |
| 111 }; |
| 112 newImage.src = imgCanvas.toDataURL(); |
| 113 } |
| 114 |
| 115 function runTest2(image) { |
| 116 runTestOnImage(image); |
| 117 |
| 118 var newImage = document.createElement("img"); |
| 119 newImage.onload = function() { |
| 120 runTest3(newImage); |
| 121 }; |
| 122 newImage.src = imgCanvas.toDataURL(); |
| 123 } |
| 124 |
| 125 function runTest3(image) { |
| 126 runTestOnImage(image); |
| 127 |
| 128 glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); |
| 129 finishTest(); |
| 130 } |
| 131 |
| 132 </script> |
| 133 </head> |
| 134 <body onload="init()"> |
| 135 <canvas id="example" width="32px" height="32px"></canvas> |
| 136 <div id="description"></div> |
| 137 <div id="console"></div> |
| 138 </body> |
| 139 </html> |
| 140 |
| 141 |
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Chromium Code Reviews
Issue 8342021:
Add webgl conformance tests r15841. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/