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

Open-source WebGL/WebGPU 3D engine for the web

import { GpuProfiler } from "../gpu-profiler.js";
import { WebgpuQuerySet } from "./webgpu-query-set.js";
class WebgpuGpuProfiler extends GpuProfiler {
	device;
	frameGPUMarkerSlot;
	constructor(device) {
		super();
		this.device = device;
		this.maxCount = 1024;
		this.timestampQueriesSet = device.supportsTimestampQuery ? new WebgpuQuerySet(device, true, 2 * this.maxCount) : 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
};