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b646a4cffc
1.0.1 is in principle a done thing. This is also the occasion to do a clean upgrade, by rm and cp, instead of applying a diff. Upstream: https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/conformance-suites/1.0.1/
107 lines
3.2 KiB
HTML
107 lines
3.2 KiB
HTML
<!--
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Copyright (c) 2011 The Chromium Authors. All rights reserved.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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-->
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta charset="utf-8">
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<title>WebGL ouf of bounds uniform array access.</title>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/js-test-pre.js"></script>
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<script src="../conformance/resources/webgl-test-utils.js"> </script>
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</head>
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<body style="background: #666;">
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<div id="description"></div>
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<div id="console"></div>
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<div>elem mult: <span id="elemMultDisplay"></span></div>
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<input type="range" id="elemMult" value="4" min="0" max="2048" style="width: 100%;"/>
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<div>line width: <span id="lineWidthDisplay"></span></div>
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<input type="range" id="lineWidth" value="512" min="0" max="2540" style="width: 100%;"/>
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<canvas id="example" width="256" height="256" style="background: black;">
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</canvas>
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<script id="vshader" type="x-shader/x-vertex">
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attribute vec4 vPosition;
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varying vec4 v_color;
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uniform float lineWidth;
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uniform int elemMult;
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uniform vec4 someArray[2];
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void main()
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{
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vec2 texcoord = vec2(vPosition.xy * 0.5 + vec2(0.5, 0.5));
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int index = int(texcoord.x + texcoord.y * lineWidth) * elemMult;
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v_color = someArray[index];
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gl_Position = vPosition;
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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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{
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gl_FragColor = v_color * vec4(1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0) + vec4(0,0,0,0.5);
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}
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</script>
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<script>
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window.onload = main;
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debug("Tests a WebGL program that accesses out of bounds uniform array elements");
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function main() {
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var wtu = WebGLTestUtils;
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var gl = wtu.create3DContext("example");
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var program = wtu.setupProgram(
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gl,
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['vshader', 'fshader'],
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['vPosition'], [0]);
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var gridRes = 255;
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wtu.setupQuad(gl, gridRes, 0);
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var lineWidthLoc = gl.getUniformLocation(program, "lineWidth");
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var elemMultLoc = gl.getUniformLocation(program, "elemMult");
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assertMsg(gl.getError() == gl.NO_ERROR, "Should be no errors from setup.");
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var lineWidth = 512;
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var lineWidthElem = document.getElementById("lineWidth");
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var lineWidthDisplayElem = document.getElementById("lineWidthDisplay");
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lineWidthElem.value = lineWidth;
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lineWidthElem.addEventListener('change', function(event) {
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//console.log(event.target.value);
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lineWidth = event.target.value;
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draw();
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}, false);
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var elemMult = 4;
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var elemMultElem = document.getElementById("elemMult");
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var elemMultDisplayElem = document.getElementById("elemMultDisplay");
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elemMultElem.value = elemMult;
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elemMultElem.addEventListener('change', function(event) {
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//console.log(event.target.value);
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elemMult = event.target.value;
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draw();
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}, false);
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draw();
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function draw() {
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lineWidthDisplayElem.innerText = lineWidth;
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elemMultDisplayElem.innerText = elemMult;
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gl.uniform1f(lineWidthLoc, lineWidth);
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gl.uniform1i(elemMultLoc, elemMult);
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gl.drawElements(gl.TRIANGLES, gridRes * gridRes * 6, gl.UNSIGNED_SHORT, 0);
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}
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successfullyParsed = true;
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}
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</script>
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</body>
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</html>
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