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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
<!--
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 FramebufferTextureLayer 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>
<div id="description"></div>
<div id="console"></div>
<canvas id="canvas" width="2" height="2"> </canvas>
<script>
"use strict";
var wtu = WebGLTestUtils;
var gl;
var canvas = document.getElementById("canvas");
function numLevelsFromSize(size) {
var levels = 0;
while ((size >> levels) > 0) {
++levels;
}
return levels;
}
function enumToString(value) {
return wtu.glEnumToString(gl, value);
}
function test3DTextureDimensions() {
debug("");
debug("Checking 3D texture dimensions.");
var tex3d = gl.createTexture();
gl.bindTexture(gl.TEXTURE_3D, tex3d);
var maxTexSize = gl.getParameter(gl.MAX_3D_TEXTURE_SIZE);
var maxLevels = numLevelsFromSize(maxTexSize);
gl.texImage3D(gl.TEXTURE_3D,
0, // level
gl.RGBA, // internalFormat
1, // width
1, // height
-1, // depth
0, // border
gl.RGBA, // format
gl.UNSIGNED_BYTE, // type
null); // data
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE,
"texImage3D should fail for dimension out of range.");
gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, maxTexSize + 1, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE,
"texImage3D should fail for dimension out of range.");
for (var i = 0; i < maxLevels; ++i) {
var level = maxLevels - i - 1;
var badSize = 1 << (i + 1);
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, badSize, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "texImage3D should fail for dimension out of range.");
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, 2, badSize, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "texImage3D should fail for dimension out of range.");
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, 2, 2, badSize, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "texImage3D should fail for dimension out of range.");
}
// Probe to discover the max non-OOM level.
var numTestLevels = maxLevels;
while (true) {
gl.texImage3D(gl.TEXTURE_3D, numTestLevels-1, gl.RGBA, 1, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
var err = gl.getError();
if (err == gl.OUT_OF_MEMORY) {
debug("Probe failed for level=" + (numTestLevels-1) + ", reducing...");
numTestLevels -= 1;
if (!numTestLevels) {
testFailed("Failed to allocate any levels");
return;
}
continue;
}
if (err) {
testFailed("Should not hit non-OOM errors during max level probing.");
return;
}
break;
}
for (var i = 0; i < numTestLevels; ++i) {
var level = numTestLevels - i - 1;
var size = 1 << i;
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, size, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D should succeed for level: " + level + " " + size + "x1x1.");
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, 1, size, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D should succeed for level: " + level + " 1x" + size + "x1.");
gl.texImage3D(gl.TEXTURE_3D, level, gl.RGBA, 1, 1, size, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D should succeed for level: " + level + " 1x1x" + size + ".");
}
// Clean up
gl.deleteTexture(tex3d);
}
function test3DTexturePixelSize() {
debug("");
debug("Checking pixel data array is big enough for request.");
var tex3d = gl.createTexture();
gl.bindTexture(gl.TEXTURE_3D, tex3d);
var tests = [
{
internalformat: gl.RGBA,
format: gl.RGBA,
type: gl.UNSIGNED_BYTE,
size: 4,
dataType: Uint8Array
},
{
internalformat: gl.R8,
format: gl.RED,
type: gl.UNSIGNED_BYTE,
size: 1,
dataType: Uint8Array
},
{
internalformat: gl.RGB565,
format: gl.RGB,
type: gl.UNSIGNED_SHORT_5_6_5,
size: 1,
dataType: Uint16Array
},
{
internalformat: gl.RGBA32I,
format: gl.RGBA_INTEGER,
type: gl.INT,
size: 4,
dataType: Int32Array
},
{
internalformat: gl.RGBA32F,
format: gl.RGBA,
type: gl.FLOAT,
size: 4,
dataType: Float32Array
},
];
tests.forEach(function(test) {
debug("");
debug("Testing internalformat " + enumToString(test.internalformat)
+ ", format " + enumToString(test.format)
+ ", type " + enumToString(test.type));
var pixels = new test.dataType(256 * 256 * 4 * test.size);
gl.texImage3D(gl.TEXTURE_3D, 0, test.internalformat, 256, 256, 256, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "ArrayBufferView not big enough for request by texImage3D.");
gl.texImage3D(gl.TEXTURE_3D, 0, test.internalformat, 256, 256, 4, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "ArrayBufferView big enough for request by texImage3D.");
pixels = new test.dataType(256 * 256 * 1 * test.size);
gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, 256, 256, 2, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "ArrayBufferView not big enough for request by texSubImage3D.");
});
gl.deleteTexture(tex3d);
}
description("This tests size limits of 3D textures.");
shouldBeNonNull("gl = wtu.create3DContext(undefined, undefined, 2)");
test3DTextureDimensions();
test3DTexturePixelSize();
debug("");
var successfullyParsed = true;
</script>
<script src="../../../js/js-test-post.js"></script>
</body>
</html>
|
