blob: c3de2a5677776ff9a2371d1e7af61ebec14f700f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
<!--
Copyright (c) 2021 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
const wtu = WebGLTestUtils;
let gl;
description("Ensure that required extensions are supported");
shouldBeNonNull("gl = wtu.create3DContext(undefined, undefined, 2)");
const supportedExts = gl.getSupportedExtensions();
function hasExt(name) {
return supportedExts.indexOf(name) >= 0;
}
const has_s3tc = hasExt('WEBGL_compressed_texture_s3tc');
const has_s3tc_srgb = hasExt('WEBGL_compressed_texture_s3tc_srgb');
const has_rgtc = hasExt('EXT_texture_compression_rgtc');
const has_etc = hasExt('WEBGL_compressed_texture_etc');
debug(`has_s3tc: ${has_s3tc}`);
debug(`has_s3tc_srgb: ${has_s3tc_srgb}`);
debug(`has_rgtc: ${has_rgtc}`);
debug(`has_etc: ${has_etc}`);
shouldBeTrue("((has_s3tc && has_s3tc_srgb && has_rgtc) || has_etc)");
// ETC1 extension must not be exposed on WebGL 2.0 contexts without ETC2.
debug("");
const has_etc1 = hasExt('WEBGL_compressed_texture_etc1');
debug(`has_etc1: ${has_etc1}`);
shouldBeTrue("has_etc1 == has_etc");
debug("");
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>
|
