wehub-resource-sync
60 lines
3.6 KiB
JavaScript
60 lines
3.6 KiB
JavaScript
// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
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// ┃ ██████ ██████ ██████ █ █ █ █ █ █▄ ▀███ █ ┃
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// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█ ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄ ▀█ █ ▀▀▀▀▀ ┃
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// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄ █ ▄▄▄▄▄ ┃
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// ┃ █ ██████ █ ▀█▄ █ ██████ █ ███▌▐███ ███████▄ █ ┃
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// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
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// ┃ Copyright (c) 2017, the Perspective Authors. ┃
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// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
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// ┃ This file is part of the Perspective library, distributed under the terms ┃
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// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
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// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
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// Installed into the page once via `page.addScriptTag`. Exposes:
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// __BENCH_RESTORE__(config) - restore the viewer with `config`, drain RAFs,
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// cache the active plugin and a fresh View.
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// __BENCH_DRAW__() - drive one full plugin.draw(view) and return
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// its wall-clock duration (ms).
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//
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// Important: `viewer.getView()` returns the *session-owned* View, not a clone.
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// We never call `.delete()` on it — the viewer destroys it on the next
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// `restore()`. See viewer.rs::getView docs.
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(() => {
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let _view = null;
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let _plugin = null;
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async function waitFrames(n) {
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for (let i = 0; i < n; i++) {
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await new Promise((r) => requestAnimationFrame(r));
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}
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}
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window.__BENCH_RESTORE__ = async function (config) {
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const viewer = document.querySelector("perspective-viewer");
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await viewer.reset();
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await viewer.restore(config);
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// Drain the viewer's own scheduled render so the GL context is sized
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// and warm before we start timing.
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await viewer.flush();
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await waitFrames(2);
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_plugin = viewer.getPlugin();
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_view = await viewer.getView();
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};
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window.__BENCH_DRAW__ = async function () {
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if (!_plugin || !_view) {
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throw new Error("__BENCH_DRAW__: call __BENCH_RESTORE__ first");
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}
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// `plugin.draw(view)` performs the full upload + GL submit. The
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// returned promise resolves once `viewToColumnDataMap` has streamed
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// every chunk through `_renderChunkData`. That is the unit we want.
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const t0 = performance.now();
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await _plugin.draw(_view);
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const t1 = performance.now();
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return t1 - t0;
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};
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})();
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