pose-estimator/test-offscreen.html at master · cgoder/pose-estimator · GitHub

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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>OffscreenCanvas 渲染测试</title>
    <style>
        body {
            margin: 0;
            padding: 20px;
            font-family: Arial, sans-serif;
            background: #f0f0f0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
        }

        .test-section {
            background: white;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 20px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .canvas-container {
            display: flex;
            justify-content: center;
            margin: 20px 0;
        }

        canvas {
            border: 2px solid #ddd;
            border-radius: 8px;
        }

        .controls {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 20px 0;
        }

        button {
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            background: #007bff;
            color: white;
            cursor: pointer;
            font-size: 14px;
        }

        button:hover {
            background: #0056b3;
        }

        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }

        .status {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 5px;
            margin: 10px 0;
            font-family: monospace;
            font-size: 12px;
        }

        .error {
            background: #f8d7da;
            color: #721c24;
        }

        .success {
            background: #d4edda;
            color: #155724;
        }

        .warning {
            background: #fff3cd;
            color: #856404;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1>🎨 OffscreenCanvas 渲染测试</h1>
            <p>测试 OffscreenCanvas 渲染功能和性能</p>
        </div>

        <div class="test-section">
            <h2>浏览器支持检测</h2>
            <div id="support-status" class="status">检测中...</div>
        </div>

        <div class="test-section">
            <h2>基础渲染测试</h2>
            <div class="canvas-container">
                <canvas id="test-canvas" width="640" height="480"></canvas>
            </div>
            <div class="controls">
                <button id="start-camera">启动摄像头</button>
                <button id="toggle-offscreen">切换渲染模式</button>
                <button id="show-stats">显示统计</button>
                <button id="reset-test">重置测试</button>
            </div>
            <div id="render-status" class="status">等待开始测试...</div>
        </div>

        <div class="test-section">
            <h2>性能对比</h2>
            <div id="performance-comparison" class="status">
                <div>主线程渲染: 未测试</div>
                <div>OffscreenCanvas 渲染: 未测试</div>
                <div>性能提升: 未知</div>
            </div>
        </div>
    </div>

    <script type="module">
        import { PoseEstimator } from './src/components/PoseEstimator.js';
        import { offscreenRenderManager } from './src/utils/offscreenRenderManager.js';

        class OffscreenCanvasTest {
            constructor() {
                this.canvas = document.getElementById('test-canvas');
                this.ctx = this.canvas.getContext('2d');
                this.poseEstimator = null;
                this.isRunning = false;
                this.useOffscreen = false;
                this.performanceData = {
                    mainThread: { fps: 0, renderTime: 0 },
                    offscreen: { fps: 0, renderTime: 0 }
                };

                this.init();
            }

            async init() {
                this.checkSupport();
                this.setupEventListeners();

                // 初始化 PoseEstimator
                try {
                    this.poseEstimator = new PoseEstimator(this.canvas, {
                        enableOffscreenRender: true,
                        modelType: 'MoveNet',
                        enableOptimization: true
                    });

                    this.updateStatus('render-status', '✅ PoseEstimator 初始化成功', 'success');
                } catch (error) {
                    this.updateStatus('render-status', `❌ PoseEstimator 初始化失败: ${error.message}`, 'error');
                }
            }

            checkSupport() {
                const supportStatus = document.getElementById('support-status');

                const checks = [
                    { name: 'OffscreenCanvas', supported: typeof OffscreenCanvas !== 'undefined' },
                    { name: 'Web Workers', supported: typeof Worker !== 'undefined' },
                    { name: 'Canvas 2D Context', supported: !!this.ctx },
                    { name: 'getUserMedia', supported: !!(navigator.mediaDevices && navigator.mediaDevices.getUserMedia) }
                ];

                let allSupported = true;
                let statusHTML = '<h3>浏览器支持情况:</h3>';

                checks.forEach(check => {
                    const icon = check.supported ? '✅' : '❌';
                    statusHTML += `<div>${icon} ${check.name}: ${check.supported ? '支持' : '不支持'}</div>`;
                    if (!check.supported) allSupported = false;
                });

                statusHTML += `<div style="margin-top: 10px; font-weight: bold;">
                    总体支持: ${allSupported ? '✅ 完全支持' : '⚠️ 部分支持'}
                </div>`;

                supportStatus.innerHTML = statusHTML;
                supportStatus.className = `status ${allSupported ? 'success' : 'warning'}`;
            }

            setupEventListeners() {
                document.getElementById('start-camera').addEventListener('click', () => this.startCamera());
                document.getElementById('toggle-offscreen').addEventListener('click', () => this.toggleOffscreen());
                document.getElementById('show-stats').addEventListener('click', () => this.showStats());
                document.getElementById('reset-test').addEventListener('click', () => this.resetTest());
            }

            async startCamera() {
                try {
                    if (!this.poseEstimator) {
                        throw new Error('PoseEstimator 未初始化');
                    }

                    this.updateStatus('render-status', '🎥 启动摄像头中...', 'warning');

                    await this.poseEstimator.start();
                    this.isRunning = true;

                    this.updateStatus('render-status', '✅ 摄像头已启动，开始姿态检测', 'success');

                    // 开始性能监控
                    this.startPerformanceMonitoring();

                } catch (error) {
                    this.updateStatus('render-status', `❌ 摄像头启动失败: ${error.message}`, 'error');
                }
            }

            async toggleOffscreen() {
                if (!this.poseEstimator) return;

                try {
                    // 获取当前状态
                    const status = this.poseEstimator.getStatus();
                    const currentOffscreen = status.offscreenRender.enabled;

                    this.updateStatus('render-status', `🔄 切换渲染模式: ${currentOffscreen ? '主线程' : 'OffscreenCanvas'}`, 'warning');

                    // 重新初始化 PoseEstimator
                    await this.poseEstimator.cleanup();

                    this.poseEstimator = new PoseEstimator(this.canvas, {
                        enableOffscreenRender: !currentOffscreen,
                        modelType: 'MoveNet',
                        enableOptimization: true
                    });

                    if (this.isRunning) {
                        await this.poseEstimator.start();
                    }

                    const newStatus = this.poseEstimator.getStatus();
                    const newOffscreen = newStatus.offscreenRender.enabled;

                    this.updateStatus('render-status',
                        `✅ 渲染模式已切换: ${newOffscreen ? 'OffscreenCanvas' : '主线程'}`, 'success');

                } catch (error) {
                    this.updateStatus('render-status', `❌ 渲染模式切换失败: ${error.message}`, 'error');
                }
            }

            showStats() {
                if (!this.poseEstimator) return;

                const status = this.poseEstimator.getStatus();

                let statsHTML = '<h3>当前状态:</h3>';
                statsHTML += `<div>运行状态: ${status.isRunning ? '✅ 运行中' : '❌ 已停止'}</div>`;
                statsHTML += `<div>OffscreenCanvas: ${status.offscreenRender.enabled ? '✅ 启用' : '❌ 禁用'}</div>`;
                statsHTML += `<div>浏览器支持: ${status.offscreenRender.supported ? '✅' : '❌'}</div>`;
                statsHTML += `<div>Worker可用: ${status.offscreenRender.available ? '✅' : '❌'}</div>`;

                if (status.offscreenRender.stats) {
                    const stats = status.offscreenRender.stats;
                    statsHTML += '<h4>渲染统计:</h4>';
                    statsHTML += `<div>渲染帧数: ${stats.framesRendered}</div>`;
                    statsHTML += `<div>平均渲染时间: ${stats.averageRenderTime}ms</div>`;
                    statsHTML += `<div>错误次数: ${stats.errorCount}</div>`;
                    statsHTML += `<div>Worker状态: ${stats.workerStatus}</div>`;
                }

                this.updateStatus('render-status', statsHTML, 'success');
            }

            startPerformanceMonitoring() {
                // 每秒更新性能数据
                setInterval(() => {
                    if (this.poseEstimator) {
                        const status = this.poseEstimator.getStatus();
                        this.updatePerformanceComparison(status);
                    }
                }, 1000);
            }

            updatePerformanceComparison(status) {
                const comparison = document.getElementById('performance-comparison');

                let html = '<h3>性能对比:</h3>';

                if (status.performance) {
                    const perf = status.performance;
                    html += `<div>当前FPS: ${perf.fps || 0}</div>`;
                    html += `<div>平均推理时间: ${perf.averageInferenceTime || 0}ms</div>`;
                    html += `<div>CPU使用率: ${perf.cpuUsage || 0}%</div>`;
                }

                if (status.offscreenRender.stats) {
                    const stats = status.offscreenRender.stats;
                    html += `<div>渲染模式: ${status.offscreenRender.enabled ? 'OffscreenCanvas' : '主线程'}</div>`;
                    html += `<div>渲染时间: ${stats.averageRenderTime}ms</div>`;
                    html += `<div>渲染帧数: ${stats.framesRendered}</div>`;
                }

                comparison.innerHTML = html;
            }

            async resetTest() {
                try {
                    if (this.poseEstimator) {
                        await this.poseEstimator.cleanup();
                    }

                    this.isRunning = false;
                    this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);

                    this.updateStatus('render-status', '🔄 测试已重置', 'warning');

                    // 重新初始化
                    setTimeout(() => this.init(), 1000);

                } catch (error) {
                    this.updateStatus('render-status', `❌ 重置失败: ${error.message}`, 'error');
                }
            }

            updateStatus(elementId, message, type = '') {
                const element = document.getElementById(elementId);
                if (element) {
                    element.innerHTML = message;
                    element.className = `status ${type}`;
                }
            }
        }

        // 启动测试
        new OffscreenCanvasTest();
    </script>
</body>
</html>