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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 imageData = null; |
| 20 |
| 21 function init() |
| 22 { |
| 23 if (window.initNonKhronosFramework) { |
| 24 window.initNonKhronosFramework(true); |
| 25 } |
| 26 |
| 27 description('Verify texImage2D and texSubImage2D code paths taking ImageData
'); |
| 28 |
| 29 var canvas2d = document.getElementById("texcanvas"); |
| 30 var context2d = canvas2d.getContext("2d"); |
| 31 imageData = context2d.createImageData(1, 2); |
| 32 var data = imageData.data; |
| 33 data[0] = 255; |
| 34 data[1] = 0; |
| 35 data[2] = 0; |
| 36 data[3] = 255; |
| 37 data[4] = 0; |
| 38 data[5] = 255; |
| 39 data[6] = 0; |
| 40 data[7] = 0; |
| 41 |
| 42 wtu = WebGLTestUtils; |
| 43 var canvas = document.getElementById("example"); |
| 44 gl = wtu.create3DContext(canvas); |
| 45 var program = wtu.setupTexturedQuad(gl); |
| 46 gl.clearColor(0,0,0,1); |
| 47 gl.clearDepth(1); |
| 48 gl.disable(gl.BLEND); |
| 49 |
| 50 textureLoc = gl.getUniformLocation(program, "tex"); |
| 51 |
| 52 runTest(); |
| 53 } |
| 54 |
| 55 // These two declarations need to be global for "shouldBe" to see them |
| 56 var buf = null; |
| 57 var idx = 0; |
| 58 var pixel = [0, 0, 0, 1]; |
| 59 var correctColor = null; |
| 60 |
| 61 function runOneIteration(useTexSubImage2D, flipY, premultiplyAlpha, topColor, bo
ttomColor) |
| 62 { |
| 63 debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + |
| 64 ' with flipY=' + flipY + ' and premultiplyAlpha=' + premultiplyAlpha); |
| 65 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 66 // Enable writes to the RGBA channels |
| 67 gl.colorMask(1, 1, 1, 0); |
| 68 var texture = gl.createTexture(); |
| 69 // Bind the texture to texture unit 0 |
| 70 gl.bindTexture(gl.TEXTURE_2D, texture); |
| 71 // Set up texture parameters |
| 72 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| 73 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| 74 // Set up pixel store parameters |
| 75 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
| 76 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, premultiplyAlpha); |
| 77 // Upload the image into the texture |
| 78 if (useTexSubImage2D) { |
| 79 // Initialize the texture to black first |
| 80 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 2, 0, |
| 81 gl.RGBA, gl.UNSIGNED_BYTE, null); |
| 82 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, imag
eData); |
| 83 } else { |
| 84 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, imag
eData); |
| 85 } |
| 86 |
| 87 // Point the uniform sampler to texture unit 0 |
| 88 gl.uniform1i(textureLoc, 0); |
| 89 // Draw the triangles |
| 90 wtu.drawQuad(gl, [0, 0, 0, 255]); |
| 91 |
| 92 // Read back the rendering results |
| 93 buf = new Uint8Array(1 * 2 * 4); |
| 94 gl.readPixels(0, 0, 1, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| 95 // Check the top pixel and bottom pixel and make sure they have |
| 96 // the right color. |
| 97 debug("Checking bottom pixel"); |
| 98 wtu.checkCanvasRect(gl, 0, 0, 1, 1, bottomColor, "shouldBe " + bottomColor); |
| 99 debug("Checking top pixel"); |
| 100 wtu.checkCanvasRect(gl, 0, 1, 1, 1, topColor, "shouldBe " + topColor); |
| 101 } |
| 102 |
| 103 function runTest() |
| 104 { |
| 105 var red = [255, 0, 0, 255]; |
| 106 var green = [0, 255, 0, 255]; |
| 107 var redPremultiplyAlpha = [255, 0, 0, 255]; |
| 108 var greenPremultiplyAlpha = [0, 0, 0, 255]; |
| 109 |
| 110 runOneIteration(false, true, false, |
| 111 red, green); |
| 112 runOneIteration(false, false, false, |
| 113 green, red); |
| 114 runOneIteration(false, true, true, |
| 115 redPremultiplyAlpha, greenPremultiplyAlpha); |
| 116 runOneIteration(false, false, true, |
| 117 greenPremultiplyAlpha, redPremultiplyAlpha); |
| 118 runOneIteration(true, true, false, |
| 119 red, green); |
| 120 runOneIteration(true, false, false, |
| 121 green, red); |
| 122 runOneIteration(true, true, true, |
| 123 redPremultiplyAlpha, greenPremultiplyAlpha); |
| 124 runOneIteration(true, false, true, |
| 125 greenPremultiplyAlpha, redPremultiplyAlpha); |
| 126 |
| 127 glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); |
| 128 finishTest(); |
| 129 } |
| 130 </script> |
| 131 </head> |
| 132 <body onload="init()"> |
| 133 <canvas id="texcanvas" width="1px" height="2px"></canvas> |
| 134 <canvas id="example" width="1px" height="2px"></canvas> |
| 135 <div id="description"></div> |
| 136 <div id="console"></div> |
| 137 </body> |
| 138 </html> |
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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/