Index: third_party/webgl/sdk/tests/extra/out-of-bounds-uniform-array-access.html |
=================================================================== |
--- third_party/webgl/sdk/tests/extra/out-of-bounds-uniform-array-access.html (revision 0) |
+++ third_party/webgl/sdk/tests/extra/out-of-bounds-uniform-array-access.html (revision 0) |
@@ -0,0 +1,109 @@ |
+<!-- |
+Copyright (c) 2011 The Chromium Authors. All rights reserved. |
+Use of this source code is governed by a BSD-style license that can be |
+found in the LICENSE file. |
+ --> |
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" |
+ "http://www.w3.org/TR/html4/loose.dtd"> |
+<html> |
+<head> |
+<meta charset="utf-8"> |
+<title>WebGL ouf of bounds uniform array access.</title> |
+<link rel="stylesheet" href="../resources/js-test-style.css"/> |
+<script src="../resources/js-test-pre.js"></script> |
+<script src="../conformance/resources/webgl-test-utils.js"> </script> |
+</head> |
+<body style="background: #666;"> |
+<div id="description"></div> |
+<div id="console"></div> |
+<div>elem mult: <span id="elemMultDisplay"></span></div> |
+<input type="range" id="elemMult" value="4" min="0" max="2048" style="width: 100%;"/> |
+<div>line width: <span id="lineWidthDisplay"></span></div> |
+<input type="range" id="lineWidth" value="512" min="0" max="2540" style="width: 100%;"/> |
+<canvas id="example" width="256" height="256" style="background: black;"> |
+</canvas> |
+<script id="vshader" type="x-shader/x-vertex"> |
+attribute vec4 vPosition; |
+varying vec4 v_color; |
+uniform float lineWidth; |
+uniform int elemMult; |
+uniform vec4 someArray[2]; |
+void main() |
+{ |
+ vec2 texcoord = vec2(vPosition.xy * 0.5 + vec2(0.5, 0.5)); |
+ int index = int(texcoord.x + texcoord.y * lineWidth) * elemMult; |
+ v_color = someArray[index]; |
+ gl_Position = vPosition; |
+} |
+</script> |
+ |
+<script id="fshader" type="x-shader/x-fragment"> |
+precision mediump float; |
+varying vec4 v_color; |
+void main() |
+{ |
+ 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); |
+} |
+</script> |
+<script> |
+window.onload = main; |
+debug("Tests a WebGL program that accesses out of bounds uniform array elements"); |
+ |
+function main() { |
+ var wtu = WebGLTestUtils; |
+ var canvas = document.getElementById("example"); |
+ |
+ var gl = wtu.create3DContext(canvas); |
+ var program = wtu.setupProgram( |
+ gl, |
+ [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER), |
+ wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)], |
+ ['vPosition'], [0]); |
+ var gridRes = 255; |
+ wtu.setupQuad(gl, gridRes, 0); |
+ var lineWidthLoc = gl.getUniformLocation(program, "lineWidth"); |
+ var elemMultLoc = gl.getUniformLocation(program, "elemMult"); |
+ assertMsg(gl.getError() == gl.NO_ERROR, "Should be no errors from setup."); |
+ |
+ var lineWidth = 512; |
+ var lineWidthElem = document.getElementById("lineWidth"); |
+ var lineWidthDisplayElem = document.getElementById("lineWidthDisplay"); |
+ |
+ lineWidthElem.value = lineWidth; |
+ |
+ lineWidthElem.addEventListener('change', function(event) { |
+ //console.log(event.target.value); |
+ lineWidth = event.target.value; |
+ draw(); |
+ }, false); |
+ |
+ var elemMult = 4; |
+ var elemMultElem = document.getElementById("elemMult"); |
+ var elemMultDisplayElem = document.getElementById("elemMultDisplay"); |
+ |
+ elemMultElem.value = elemMult; |
+ |
+ elemMultElem.addEventListener('change', function(event) { |
+ //console.log(event.target.value); |
+ elemMult = event.target.value; |
+ draw(); |
+ }, false); |
+ |
+ draw(); |
+ |
+ function draw() { |
+ lineWidthDisplayElem.innerText = lineWidth; |
+ elemMultDisplayElem.innerText = elemMult; |
+ gl.uniform1f(lineWidthLoc, lineWidth); |
+ gl.uniform1i(elemMultLoc, elemMult); |
+ gl.drawElements(gl.TRIANGLES, gridRes * gridRes * 6, gl.UNSIGNED_SHORT, 0); |
+ } |
+ |
+ successfullyParsed = true; |
+} |
+ |
+</script> |
+</body> |
+</html> |
+ |
+ |
Property changes on: third_party/webgl/sdk/tests/extra/out-of-bounds-uniform-array-access.html |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |