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100 lines
3 KiB
HTML
100 lines
3 KiB
HTML
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<!--
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/*
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** Copyright (c) 2012 The Khronos Group Inc.
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**
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** Permission is hereby granted, free of charge, to any person obtaining a
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** copy of this software and/or associated documentation files (the
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** "Materials"), to deal in the Materials without restriction, including
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** without limitation the rights to use, copy, modify, merge, publish,
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** distribute, sublicense, and/or sell copies of the Materials, and to
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** permit persons to whom the Materials are furnished to do so, subject to
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** the following conditions:
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**
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** The above copyright notice and this permission notice shall be included
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** in all copies or substantial portions of the Materials.
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**
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** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*/
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>WebGL Disabled Vertex Attrib Test</title>
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<link rel="stylesheet" href="../../resources/js-test-style.css"/>
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<script src="../../js/js-test-pre.js"></script>
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<script src="../../js/webgl-test-utils.js"> </script>
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</head>
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<body>
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<canvas id="example" width="50" height="50">
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</canvas>
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<div id="description"></div>
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<div id="console"></div>
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<script id="vshader" type="x-shader/x-vertex">
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attribute vec4 a_position;
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attribute vec4 a_color;
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varying vec4 v_color;
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bool isCorrectColor(vec4 v) {
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return v.x == 0.0 && v.y == 0.0 && v.z == 0.0 && v.w == 1.0;
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}
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void main() {
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gl_Position = a_position;
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v_color = isCorrectColor(a_color) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
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}
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</script>
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<script id="fshader" type="x-shader/x-fragment">
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precision mediump float;
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varying vec4 v_color;
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void main() {
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gl_FragColor = v_color;
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}
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</script>
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<script>
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"use strict";
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var wtu = WebGLTestUtils;
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description();
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var gl = wtu.create3DContext("example");
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var numVertexAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
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for (var ii = 0; ii < numVertexAttribs; ++ii) {
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var colorLocation = (ii + 1) % numVertexAttribs;
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var positionLocation = colorLocation ? 0 : 1;
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if (positionLocation != 0) {
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// We need to create a new 3d context for testing attrib 0
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// since we've already effected attrib 0 on other tests.
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gl = wtu.create3DContext();
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}
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debug("testing attrib: " + colorLocation);
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var program = wtu.setupProgram(
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gl,
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['vshader', 'fshader'],
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['a_position', 'a_color'],
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[positionLocation, colorLocation]);
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var gridRes = 1;
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wtu.setupIndexedQuad(gl, gridRes, positionLocation);
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wtu.clearAndDrawIndexedQuad(gl, gridRes);
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wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green");
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}
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
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var successfullyParsed = true;
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</script>
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<script src="../../js/js-test-post.js"></script>
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</body>
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</html>
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