content/canvas/test/webgl-conformance/conformance/textures/texture-transparent-pixels-initialized.html@b8a032363ba2 (annotated)
content/canvas/test/webgl-conformance/conformance/textures/texture-transparent-pixels-initialized.html
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | <!-- |
| michael@0 | 2 | Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| michael@0 | 3 | |
| michael@0 | 4 | Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | modification, are permitted provided that the following conditions are |
| michael@0 | 6 | met: |
| michael@0 | 7 | |
| michael@0 | 8 | * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | * Redistributions in binary form must reproduce the above |
| michael@0 | 11 | copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 12 | in the documentation and/or other materials provided with the |
| michael@0 | 13 | distribution. |
| michael@0 | 14 | * Neither the name of Google Inc. nor the names of its |
| michael@0 | 15 | contributors may be used to endorse or promote products derived from |
| michael@0 | 16 | this software without specific prior written permission. |
| michael@0 | 17 | |
| michael@0 | 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 19 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 20 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 21 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 22 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 23 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 24 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 25 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 26 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 28 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 29 | --> |
| michael@0 | 30 | <!DOCTYPE html> |
| michael@0 | 31 | <html> |
| michael@0 | 32 | <head> |
| michael@0 | 33 | <meta charset="utf-8"> |
| michael@0 | 34 | <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| michael@0 | 35 | <script src="../../resources/js-test-pre.js"></script> |
| michael@0 | 36 | <script src="../resources/webgl-test.js"></script> |
| michael@0 | 37 | <script src="../resources/webgl-test-utils.js"></script> |
| michael@0 | 38 | <script> |
| michael@0 | 39 | var wtu = WebGLTestUtils; |
| michael@0 | 40 | var gl = null; |
| michael@0 | 41 | var textureLoc = null; |
| michael@0 | 42 | var successfullyParsed = false; |
| michael@0 | 43 | |
| michael@0 | 44 | function init() |
| michael@0 | 45 | { |
| michael@0 | 46 | if (window.initNonKhronosFramework) { |
| michael@0 | 47 | window.initNonKhronosFramework(true); |
| michael@0 | 48 | } |
| michael@0 | 49 | |
| michael@0 | 50 | description('Tests there is no garbage in transparent regions of images uploaded as textures'); |
| michael@0 | 51 | |
| michael@0 | 52 | wtu = WebGLTestUtils; |
| michael@0 | 53 | gl = wtu.create3DContext("example"); |
| michael@0 | 54 | var program = wtu.setupTexturedQuad(gl); |
| michael@0 | 55 | gl.clearColor(0.5,0.5,0.5,1); |
| michael@0 | 56 | gl.clearDepth(1); |
| michael@0 | 57 | |
| michael@0 | 58 | textureLoc = gl.getUniformLocation(program, "tex"); |
| michael@0 | 59 | |
| michael@0 | 60 | // The input texture has 8 characters; take the leftmost one |
| michael@0 | 61 | var coeff = 1.0 / 8.0; |
| michael@0 | 62 | var texCoords = new Float32Array([ |
| michael@0 | 63 | coeff, 1.0, |
| michael@0 | 64 | 0.0, 1.0, |
| michael@0 | 65 | 0.0, 0.0, |
| michael@0 | 66 | coeff, 1.0, |
| michael@0 | 67 | 0.0, 0.0, |
| michael@0 | 68 | coeff, 0.0]); |
| michael@0 | 69 | |
| michael@0 | 70 | var vbo = gl.createBuffer(); |
| michael@0 | 71 | gl.bindBuffer(gl.ARRAY_BUFFER, vbo); |
| michael@0 | 72 | gl.bufferData(gl.ARRAY_BUFFER, texCoords, gl.STATIC_DRAW); |
| michael@0 | 73 | gl.enableVertexAttribArray(1); |
| michael@0 | 74 | gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); |
| michael@0 | 75 | |
| michael@0 | 76 | texture = wtu.loadTexture(gl, "../resources/bug-32888-texture.png", runTest); |
| michael@0 | 77 | } |
| michael@0 | 78 | |
| michael@0 | 79 | // These two declarations need to be global for "shouldBe" to see them |
| michael@0 | 80 | var buf = null; |
| michael@0 | 81 | var idx = 0; |
| michael@0 | 82 | |
| michael@0 | 83 | function runTest() |
| michael@0 | 84 | { |
| michael@0 | 85 | gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| michael@0 | 86 | gl.enable(gl.BLEND); |
| michael@0 | 87 | gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA); |
| michael@0 | 88 | // Bind the texture to texture unit 0 |
| michael@0 | 89 | gl.bindTexture(gl.TEXTURE_2D, texture); |
| michael@0 | 90 | // Point the uniform sampler to texture unit 0 |
| michael@0 | 91 | gl.uniform1i(textureLoc, 0); |
| michael@0 | 92 | // Draw the triangles |
| michael@0 | 93 | wtu.drawQuad(gl, [0, 0, 0, 255]); |
| michael@0 | 94 | |
| michael@0 | 95 | // Spot check a couple of 2x2 regions in the upper and lower left |
| michael@0 | 96 | // corners; they should be the rgb values in the texture. |
| michael@0 | 97 | color = [0, 0, 0]; |
| michael@0 | 98 | debug("Checking lower left corner"); |
| michael@0 | 99 | wtu.checkCanvasRect(gl, 1, gl.canvas.height - 3, 2, 2, color, |
| michael@0 | 100 | "shouldBe " + color); |
| michael@0 | 101 | debug("Checking upper left corner"); |
| michael@0 | 102 | wtu.checkCanvasRect(gl, 1, 1, 2, 2, color, |
| michael@0 | 103 | "shouldBe " + color); |
| michael@0 | 104 | |
| michael@0 | 105 | finishTest(); |
| michael@0 | 106 | } |
| michael@0 | 107 | </script> |
| michael@0 | 108 | </head> |
| michael@0 | 109 | <body onload="init()"> |
| michael@0 | 110 | <canvas id="example" width="32px" height="32px"></canvas> |
| michael@0 | 111 | <div id="description"></div> |
| michael@0 | 112 | <div id="console"></div> |
| michael@0 | 113 | </body> |
| michael@0 | 114 | </html> |
