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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
<!--
Copyright (c) 2020 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 Texture Copying and Deletion Test</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>
</head>
<body>
<canvas id="example" width="1" height="1" style="width: 40px; height: 40px;"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description('Checks that texture copying and deletion work correctly together.');
debug('Regression test for <a href="http://anglebug.com/4267">http://anglebug.com/4267</a>');
const wtu = WebGLTestUtils;
const canvas = document.getElementById("example");
canvas.addEventListener('webglcontextlost', contextLost, false);
let contextWasLost = false;
function contextLost(e) {
e.preventDefault();
contextWasLost = true;
debug("***context lost -- should not happen***");
}
const gl = wtu.create3DContext(canvas);
const texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
const texture2 = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture2);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
const framebuffer = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
assertMsg(gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE,
"framebuffer should be FRAMEBUFFER_COMPLETE.");
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setup");
// This test does not call getError, because doing so seems to cause
// an implicit flush which intermittently masks the bug.
debug("");
debug("testing copyTexImage2D");
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.copyTexImage2D(gl.TEXTURE_2D, 1, gl.RGBA, 0, 0, 2, 2, 0);
// Not necessary to do any CopyTexImage2D operations to texture2.
debug("");
debug("testing copyTexSubImage2D");
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.copyTexSubImage2D(gl.TEXTURE_2D, 1, 0, 0, 0, 0, 1, 1);
gl.bindTexture(gl.TEXTURE_2D, texture2);
gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 0, 0, 1, 1);
debug('deleting framebuffer');
gl.deleteFramebuffer(framebuffer);
debug('deleting texture');
gl.deleteTexture(texture);
debug('deleting texture2');
// On buggy driver, crashes during this deleteTexture call.
gl.deleteTexture(texture2);
setTimeout(function() {
shouldBe("contextWasLost", "false");
finishTest();
}, 1000);
</script>
</body>
</html>
|
