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
190
|
<!--
/*
** Copyright (c) 2016 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL Integer Cubemap Texture Sampling 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/tex-image-and-sub-image-utils.js"></script>
</head>
<body>
<canvas id="example" width="128" height="128"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
var wtu = WebGLTestUtils;
var tiu = TexImageUtils;
description("Verify sampling works fine with integer cubemap textures");
debug("https://github.com/KhronosGroup/WebGL/issues/1819");
var gl = wtu.create3DContext("example", undefined, 2);
var testCases = [
{ internalFormat: "R8UI", format: "RED_INTEGER", type: "UNSIGNED_BYTE" },
{ internalFormat: "RG8UI", format: "RG_INTEGER", type: "UNSIGNED_BYTE" },
{ internalFormat: "RGB8UI", format: "RGB_INTEGER", type: "UNSIGNED_BYTE" },
{ internalFormat: "RGBA8UI", format: "RGBA_INTEGER", type: "UNSIGNED_BYTE" },
];
function setupData(internalFormat, size) {
var numComponents = 0;
switch (gl[internalFormat]) {
case gl.R8UI:
numComponents = 1;
break;
case gl.RG8UI:
numComponents = 2;
break;
case gl.RGB8UI:
numComponents = 3;
break;
case gl.RGBA8UI:
numComponents = 4;
break;
}
if (numComponents == 0) {
testFailed("This should never be reached");
return null;
}
var data = new Uint8Array(numComponents * size * size);
for (var ii = 0; ii < size * size; ++ii) {
// Set all pixels to RED.
data[ii * numComponents] = 255;
if (numComponents > 1)
data[ii * numComponents + 1] = 0;
if (numComponents > 2)
data[ii * numComponents + 2] = 0;
if (numComponents > 3)
data[ii * numComponents + 3] = 255;
}
return data;
}
function checkIntegerTextureValues(internalFormat, size) {
var buffer = new Uint32Array(4 * size * size);
gl.readPixels(0, 0, size, size, gl.RGBA_INTEGER, gl.UNSIGNED_INT, buffer);
for (var y = 0; y < size; ++y) {
for (var x = 0; x < size; ++x) {
var index = (y * size + x) * 4;
if (buffer[index] != 255 || buffer[index + 1] != 0 || buffer[index + 2] != 0) {
testFailed("At (" + x + ", " + y + "), expected 255,0,0,255, was " +
[buffer[index], buffer[index + 1], buffer[index + 2], buffer[index + 3]]);
return;
}
}
}
testPassed("All pixels are as expected");
}
function runOneTest(internalFormat, format, type, size) {
debug("");
debug("Testing internalformat = " + internalFormat + ", format = " + format + ", type = " + type + ", size = " + size);
gl.clearColor(1, 1, 0, 1);
gl.clearDepth(1);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex);
gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
var targets = [gl.TEXTURE_CUBE_MAP_POSITIVE_X,
gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];
var data = setupData(internalFormat, size);
for (var tt = 0; tt < targets.length; ++tt) {
gl.texImage2D(targets[tt], 0, gl[internalFormat], size, size, 0, gl[format], gl[type], data);
}
debug("1) Reading back texture data");
var fbo = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
for (var tt = 0; tt < targets.length; ++tt) {
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, targets[tt], tex, 0);
if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
checkIntegerTextureValues(internalFormat, size);
}
}
gl.deleteFramebuffer(fbo);
debug("2) Rendering with texture");
var program = tiu.setupTexturedQuadWithCubeMap(gl, internalFormat);
var loc = gl.getUniformLocation(program, "face");
for (var tt = 0; tt < targets.length; ++tt) {
gl.uniform1i(loc, targets[tt]);
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 255, 0, 255]);
wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [255, 0, 0, 255], "Should be red");
}
gl.deleteProgram(program);
gl.deleteTexture(tex);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No GL errors");
var m = wtu.makeImageFromCanvas(gl.canvas);
document.getElementById("console").appendChild(m);
document.getElementById("console").appendChild(document.createElement("hr"));
}
function runTests() {
for (var ii = 0; ii < testCases.length; ++ii) {
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 2);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 4);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 8);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 16);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 32);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 64);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 65);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 127);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 128);
runOneTest(testCases[ii].internalFormat, testCases[ii].format, testCases[ii].type, 129);
}
}
runTests();
debug("");
var successfullyParsed = true;
</script>
<script src="../../../js/js-test-post.js"></script>
</body>
</html>
|
