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1 <!-- | |
2 Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
3 Use of this source code is governed by a BSD-style license that can be | |
4 found in the LICENSE file. | |
5 --> | |
6 <!DOCTYPE html> | |
7 <html> | |
8 <head> | |
9 <meta charset="utf-8"> | |
10 <link rel="stylesheet" href="../../resources/js-test-style.css"/> | |
11 <script src="../../resources/js-test-pre.js"></script> | |
12 <script src="../resources/webgl-test.js"></script> | |
13 </head> | |
14 <body> | |
15 <div id="description"></div> | |
16 <div id="console"></div> | |
17 | |
18 <script> | |
19 description('Tests that index validation for drawElements does not examine too m
any indices'); | |
20 | |
21 var context = create3DContext(); | |
22 var program = loadStandardProgram(context); | |
23 | |
24 context.useProgram(program); | |
25 var vertexObject = context.createBuffer(); | |
26 context.enableVertexAttribArray(0); | |
27 context.bindBuffer(context.ARRAY_BUFFER, vertexObject); | |
28 // 4 vertices -> 2 triangles | |
29 context.bufferData(context.ARRAY_BUFFER, new Float32Array([ 0,0,0, 0,1,0, 1,0,0,
1,1,0 ]), context.STATIC_DRAW); | |
30 context.vertexAttribPointer(0, 3, context.FLOAT, false, 0, 0); | |
31 | |
32 var indexObject = context.createBuffer(); | |
33 | |
34 debug("Test out of range indices") | |
35 context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, indexObject); | |
36 context.bufferData(context.ELEMENT_ARRAY_BUFFER, new Uint16Array([ 10000, 0, 1,
2, 3, 10000 ]), context.STATIC_DRAW); | |
37 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.T
RIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 2)"); | |
38 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(
context.TRIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 0)"); | |
39 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(
context.TRIANGLE_STRIP, 4, context.UNSIGNED_SHORT, 4)"); | |
40 | |
41 debug("") | |
42 successfullyParsed = true; | |
43 </script> | |
44 | |
45 <script src="../../resources/js-test-post.js"></script> | |
46 </body> | |
47 </html> | |
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