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| 1 <!-- |
| 2 Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 3 |
| 4 Redistribution and use in source and binary forms, with or without |
| 5 modification, are permitted provided that the following conditions are |
| 6 met: |
| 7 |
| 8 * Redistributions of source code must retain the above copyright |
| 9 notice, this list of conditions and the following disclaimer. |
| 10 * Redistributions in binary form must reproduce the above |
| 11 copyright notice, this list of conditions and the following disclaimer |
| 12 in the documentation and/or other materials provided with the |
| 13 distribution. |
| 14 * Neither the name of Google Inc. nor the names of its |
| 15 contributors may be used to endorse or promote products derived from |
| 16 this software without specific prior written permission. |
| 17 |
| 18 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 --> |
| 30 <!DOCTYPE html> |
| 31 <html> |
| 32 <head> |
| 33 <meta charset="utf-8"> |
| 34 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 35 <script src="../../resources/js-test-pre.js"></script> |
| 36 <script src="../resources/webgl-test.js"></script> |
| 37 <script src="../resources/webgl-test-utils.js"></script> |
| 38 <script> |
| 39 var wtu = WebGLTestUtils; |
| 40 var gl = null; |
| 41 var textureLoc = null; |
| 42 var successfullyParsed = false; |
| 43 |
| 44 function init() |
| 45 { |
| 46 if (window.initNonKhronosFramework) { |
| 47 window.initNonKhronosFramework(true); |
| 48 } |
| 49 |
| 50 description('Tests there is no garbage in transparent regions of images uplo
aded as textures'); |
| 51 |
| 52 wtu = WebGLTestUtils; |
| 53 var canvas = document.getElementById("example"); |
| 54 gl = wtu.create3DContext(canvas); |
| 55 var program = wtu.setupTexturedQuad(gl); |
| 56 gl.clearColor(0.5,0.5,0.5,1); |
| 57 gl.clearDepth(1); |
| 58 |
| 59 textureLoc = gl.getUniformLocation(program, "tex"); |
| 60 |
| 61 // The input texture has 8 characters; take the leftmost one |
| 62 var coeff = 1.0 / 8.0; |
| 63 var texCoords = new Float32Array([ |
| 64 coeff, 1.0, |
| 65 0.0, 1.0, |
| 66 0.0, 0.0, |
| 67 coeff, 1.0, |
| 68 0.0, 0.0, |
| 69 coeff, 0.0]); |
| 70 |
| 71 var vbo = gl.createBuffer(); |
| 72 gl.bindBuffer(gl.ARRAY_BUFFER, vbo); |
| 73 gl.bufferData(gl.ARRAY_BUFFER, texCoords, gl.STATIC_DRAW); |
| 74 gl.enableVertexAttribArray(1); |
| 75 gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); |
| 76 |
| 77 texture = wtu.loadTexture(gl, "../resources/bug-32888-texture.png", runTest)
; |
| 78 } |
| 79 |
| 80 // These two declarations need to be global for "shouldBe" to see them |
| 81 var buf = null; |
| 82 var idx = 0; |
| 83 |
| 84 function runTest() |
| 85 { |
| 86 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 87 gl.enable(gl.BLEND); |
| 88 gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA); |
| 89 // Bind the texture to texture unit 0 |
| 90 gl.bindTexture(gl.TEXTURE_2D, texture); |
| 91 // Point the uniform sampler to texture unit 0 |
| 92 gl.uniform1i(textureLoc, 0); |
| 93 // Draw the triangles |
| 94 wtu.drawQuad(gl, [0, 0, 0, 255]); |
| 95 |
| 96 // Spot check a couple of 2x2 regions in the upper and lower left |
| 97 // corners; they should be the rgb values in the texture. |
| 98 color = [0, 0, 0]; |
| 99 debug("Checking lower left corner"); |
| 100 wtu.checkCanvasRect(gl, 1, gl.canvas.height - 3, 2, 2, color, |
| 101 "shouldBe " + color); |
| 102 debug("Checking upper left corner"); |
| 103 wtu.checkCanvasRect(gl, 1, 1, 2, 2, color, |
| 104 "shouldBe " + color); |
| 105 |
| 106 finishTest(); |
| 107 } |
| 108 </script> |
| 109 </head> |
| 110 <body onload="init()"> |
| 111 <canvas id="example" width="32px" height="32px"></canvas> |
| 112 <div id="description"></div> |
| 113 <div id="console"></div> |
| 114 </body> |
| 115 </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/