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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
<!--
Copyright (c) 2019 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">
<title>WebGL WEBGL_compressed_texture_etc1 Conformance Tests</title>
<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>
<script src="../../js/tests/compressed-texture-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description("This test verifies the functionality of the WEBGL_compressed_texture_etc1 extension, if it is available.");
debug("");
var validFormats = {
COMPRESSED_RGB_ETC1_WEBGL: 0x8D64,
};
function expectedByteLength(width, height, format) {
return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 8;
}
function getBlockDimensions(format) {
return {width: 4, height: 4};
}
var wtu = WebGLTestUtils;
var ctu = CompressedTextureUtils;
var contextVersion = wtu.getDefault3DContextVersion();
var gl = wtu.create3DContext();
var WEBGL_compressed_texture_etc1;
var formats = null;
function runTest() {
if (!gl) {
testFailed("context does not exist");
} else {
testPassed("context exists");
ctu.testCompressedFormatsUnavailableWhenExtensionDisabled(gl, validFormats, expectedByteLength, 4);
WEBGL_compressed_texture_etc1 = gl.getExtension("WEBGL_compressed_texture_etc1");
wtu.runExtensionSupportedTest(gl, "WEBGL_compressed_texture_etc1", WEBGL_compressed_texture_etc1 !== null);
if (WEBGL_compressed_texture_etc1 !== null) {
// Test that enum values are listed correctly in supported formats and in the extension object.
ctu.testCompressedFormatsListed(gl, validFormats);
ctu.testCorrectEnumValuesInExt(WEBGL_compressed_texture_etc1, validFormats);
// Test that texture upload buffer size is validated correctly.
ctu.testFormatRestrictionsOnBufferSize(gl, validFormats, expectedByteLength, getBlockDimensions);
}
}
}
runTest();
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>
|
