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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
<!--
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">
<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>
<style>
.spinner {
width: 100px;
height: 100px;
border: 20px solid transparent;
border-top: 20px solid black;
border-radius: 100%;
text-align: center;
padding: 10px;
}
@keyframes rotation {
from { transorm: rotate(0); }
to { transform: rotate(360deg); }
}
</style>
</head>
<body>
<div id="description"></div>
<button onclick='compileShaders()'>The spinners below should not stutter when you click this button.</button>
<div class="spinner" style="animation: rotation 2s infinite linear;">CSS</div>
<div class="spinner" id=spinner>JS</div>
<div id="console"></div>
<canvas id=canvas></canvas>
<script>
"use strict";
description("Test KHR_parallel_shader_compile");
function spinSpinner() {
let degrees = (performance.now() / 1000 / 2 % 1.) * 360;
spinner.style.transform = `rotate(${degrees}deg)`;
requestAnimationFrame(spinSpinner);
}
spinSpinner();
const wtu = WebGLTestUtils;
const gl = wtu.create3DContext();
const loseContext = wtu.getExtensionWithKnownPrefixes(gl, "WEBGL_lose_context");
let counter = 0;
const vertexSource = (extra) => `
void main() {
vec4 result = vec4(0.${counter++});
${extra || ''}
gl_Position = result;
}`;
const fragmentSource = (extra) => `
precision highp float;
void main() {
vec4 result = vec4(0.${counter++});
${extra || ''}
gl_FragColor = result;
}`;
let vs = gl.createShader(gl.VERTEX_SHADER);
let fs = gl.createShader(gl.FRAGMENT_SHADER);
let program = gl.createProgram();
gl.attachShader(program, vs);
gl.attachShader(program, fs);
const COMPLETION_STATUS_KHR = 0x91B1;
gl.shaderSource(vs, vertexSource());
gl.compileShader(vs);
let status = gl.getShaderParameter(vs, COMPLETION_STATUS_KHR);
if (status !== null) testFailed('Extension disabled, status should be null');
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "extension disabled");
gl.shaderSource(fs, fragmentSource());
gl.compileShader(fs);
gl.linkProgram(program);
status = gl.getProgramParameter(program, COMPLETION_STATUS_KHR);
if (status !== null) testFailed('Extension disabled, status should be null');
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "extension disabled");
const ext = wtu.getExtensionWithKnownPrefixes(gl, "KHR_parallel_shader_compile");
let successfullyParsed = false;
let extraCode = '';
(async () => {
if (!ext) {
testPassed("No KHR_parallel_shader_compile support -- this is legal");
} else {
testPassed("Successfully enabled KHR_parallel_shader_compile extension");
shouldBe("ext.COMPLETION_STATUS_KHR", "0x91B1");
debug("Checking that status is a boolean.");
gl.shaderSource(vs, vertexSource());
gl.compileShader(vs);
let status = gl.getShaderParameter(vs, COMPLETION_STATUS_KHR);
if (status !== true && status !== false) testFailed("status should be a boolean");
gl.linkProgram(program);
status = gl.getProgramParameter(program, COMPLETION_STATUS_KHR);
if (status !== true && status !== false) testFailed("status should be a boolean");
const minimumShaderCompileDurationMs = 500;
debug(`Constructing shader that takes > ${minimumShaderCompileDurationMs} ms to compile.`);
let measuredCompileDuration = 0;
extraCode = '\n if (true) { result += vec4(0.0000001); }';
for (let i = 0; measuredCompileDuration < minimumShaderCompileDurationMs; i++) {
extraCode += extraCode;
extraCode += extraCode;
if (i < 4) continue;
gl.shaderSource(vs, vertexSource(extraCode));
gl.shaderSource(fs, fragmentSource(extraCode));
gl.compileShader(vs);
gl.compileShader(fs);
gl.linkProgram(program);
const start = performance.now();
if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
testFailed(`Shaders failed to compile.
program: ${gl.getProgramInfoLog(program)}
vs: ${gl.getShaderInfoLog(vs)}
fs: ${gl.getShaderInfoLog(fs)}`);
break;
}
measuredCompileDuration = performance.now() - start;
}
debug('');
gl.shaderSource(vs, vertexSource(extraCode));
gl.shaderSource(fs, fragmentSource(extraCode));
gl.compileShader(vs);
gl.compileShader(fs);
gl.linkProgram(program);
let start = performance.now();
gl.getShaderParameter(fs, COMPLETION_STATUS_KHR);
gl.getShaderParameter(vs, COMPLETION_STATUS_KHR);
let duration = performance.now() - start;
if (duration > 100)
testFailed(`Querying shader status should not wait for compilation. Took ${duration} ms`);
let frames = 0;
const maximumTimeToWait = measuredCompileDuration * 4;
while (!gl.getProgramParameter(program, COMPLETION_STATUS_KHR)
&& performance.now() - start < maximumTimeToWait) {
frames++;
await new Promise(requestAnimationFrame);
}
duration = performance.now() - start;
if (!gl.getProgramParameter(program, COMPLETION_STATUS_KHR)) {
testFailed(`Program took longer than ${maximumTimeToWait} ms to compile. Expected: ${measuredCompileDuration} ms, actual: ${duration} ms`);
} else if (!gl.getShaderParameter(vs, COMPLETION_STATUS_KHR) || !gl.getShaderParameter(fs, COMPLETION_STATUS_KHR)) {
testFailed('Program linked before shaders finished compiling.');
} else if (frames <= 6) {
testFailed(`Program should have taken many more than 6 frames to compile. Actual value: ${frames} frames, duration ${performance.now() - start} ms.`);
} else {
console.log(`COMPLETION_STATUS_KHR sucessfully transitioned from false to true in ${frames} frames and ${duration} ms.`);
testPassed(`COMPLETION_STATUS_KHR sucessfully transitioned from false to true`);
}
debug("Checking that status is true when context is lost.");
if (loseContext) {
gl.shaderSource(vs, vertexSource(extraCode));
gl.shaderSource(fs, fragmentSource(extraCode));
gl.compileShader(vs);
gl.compileShader(fs);
gl.linkProgram(program);
loseContext.loseContext();
status = gl.getShaderParameter(vs, COMPLETION_STATUS_KHR);
if (status !== true) testFailed("shader status should be true when context is lost");
status = gl.getProgramParameter(program, COMPLETION_STATUS_KHR);
if (status !== true) testFailed("program status should be true when context is lost");
loseContext.restoreContext();
vs = gl.createShader(gl.VERTEX_SHADER);
fs = gl.createShader(gl.FRAGMENT_SHADER);
program = gl.createProgram();
}
}
finishTest();
})();
async function compileShaders() {
console.log('Compiling shaders');
const gl = canvas.getContext('webgl');
const vs = gl.createShader(gl.VERTEX_SHADER);
const fs = gl.createShader(gl.FRAGMENT_SHADER);
const program = gl.createProgram();
gl.getExtension(wtu.getExtensionWithKnownPrefixes(gl, "KHR_parallel_shader_compile"));
gl.attachShader(program, vs);
gl.attachShader(program, fs);
gl.shaderSource(vs, vertexSource(extraCode));
gl.shaderSource(fs, fragmentSource(extraCode));
gl.compileShader(vs);
gl.compileShader(fs);
gl.linkProgram(program);
while (!gl.getProgramParameter(program, COMPLETION_STATUS_KHR)) {
gl.getShaderParameter(vs, COMPLETION_STATUS_KHR);
gl.getShaderParameter(fs, COMPLETION_STATUS_KHR);
await new Promise(requestAnimationFrame);
}
gl.getProgramParameter(program, gl.LINK_STATUS);
console.log('Compilation finished.');
}
</script>
</body>
</html>
|
