playcanvas/build/playcanvas.prf/src/platform/graphics/webgpu/webgpu-gpu-profiler.js

PlayCanvas WebGL game engine

import { GpuProfiler } from '../gpu-profiler.js';
import { WebgpuQuerySet } from './webgpu-query-set.js';

class WebgpuGpuProfiler extends GpuProfiler {
		constructor(device){
				super();
				this.device = device;
				this.timestampQueriesSet = device.supportsTimestampQuery ? new WebgpuQuerySet(device, true, 512) : null;
		}
		destroy() {
				this.timestampQueriesSet?.destroy();
				this.timestampQueriesSet = null;
		}
		frameStart() {
				this.processEnableRequest();
		}
		frameEnd() {
				if (this._enabled) {
						this.timestampQueriesSet?.resolve(this.slotCount * 2);
				}
		}
		request() {
				if (this._enabled) {
						const renderVersion = this.device.renderVersion;
						this.timestampQueriesSet?.request(this.slotCount, renderVersion).then((results)=>{
								this.report(results.renderVersion, results.timings);
						});
						super.request(renderVersion);
				}
		}
}

export { WebgpuGpuProfiler };