1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/buffers/index-validation-verifies-too-many-indices.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,47 @@
1.4 +<!--
1.5 +Copyright (c) 2011 The Chromium Authors. All rights reserved.
1.6 +Use of this source code is governed by a BSD-style license that can be
1.7 +found in the LICENSE file.
1.8 + -->
1.9 +<!DOCTYPE html>
1.10 +<html>
1.11 +<head>
1.12 +<meta charset="utf-8">
1.13 +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
1.14 +<script src="../../resources/js-test-pre.js"></script>
1.15 +<script src="../resources/webgl-test.js"></script>
1.16 +</head>
1.17 +<body>
1.18 +<div id="description"></div>
1.19 +<div id="console"></div>
1.20 +
1.21 +<script>
1.22 +description('Tests that index validation for drawElements does not examine too many indices');
1.23 +
1.24 +var context = create3DContext();
1.25 +var program = loadStandardProgram(context);
1.26 +
1.27 +context.useProgram(program);
1.28 +var vertexObject = context.createBuffer();
1.29 +context.enableVertexAttribArray(0);
1.30 +context.bindBuffer(context.ARRAY_BUFFER, vertexObject);
1.31 +// 4 vertices -> 2 triangles
1.32 +context.bufferData(context.ARRAY_BUFFER, new Float32Array([ 0,0,0, 0,1,0, 1,0,0, 1,1,0 ]), context.STATIC_DRAW);
1.33 +context.vertexAttribPointer(0, 3, context.FLOAT, false, 0, 0);
1.34 +
1.35 +var indexObject = context.createBuffer();
1.36 +
1.37 +debug("Test out of range indices")
1.38 +context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, indexObject);
1.39 +context.bufferData(context.ELEMENT_ARRAY_BUFFER, new Uint16Array([ 10000, 0, 1, 2, 3, 10000 ]), context.STATIC_DRAW);
1.40 +shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 2)");
1.41 +shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 0)");
1.42 +shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 4)");
1.43 +
1.44 +debug("")
1.45 +successfullyParsed = true;
1.46 +</script>
1.47 +
1.48 +<script>finishTest();</script>
1.49 +</body>
1.50 +</html>
