Function prepareWebGpuPsnrApp

e2e/webgpu-psnr-app.spec.ts:684–707

(
  page: Page,
  fixtureFiles: TestDatasetFileEntry[] = createPsnrFixtureFiles()
)

}

async function prepareWebGpuPsnrApp(
  page: Page,
  fixtureFiles: TestDatasetFileEntry[] = createPsnrFixtureFiles()
): Promise<void> {
  test.skip(!await page.evaluate(() => Boolean((navigator as Navigator & { gpu?: unknown }).gpu)), 'WebGPU is unavailable');

  const closeButton = page.locator('button:has-text("x"), button:has-text("×")').first();
  if (await closeButton.isVisible({ timeout: 2_000 })) {
    await closeButton.click();
  }

  await loadTestDataset(page, fixtureFiles);
  await expect(page.locator('text=Source:')).toBeVisible({ timeout: 45_000 });
  await waitForSceneProbe(page);
  await switchPointCloudToSplats(page);
  await waitForWebGpuSplatCanvasVisible(page);
  await waitForPsnrFrameReady(page);
  await page.evaluate(async (selectedImageId) => {
    const api = (window as Window & { __COLMAP_WEBVIEW_E2E__?: ColmapWebViewE2EApi }).__COLMAP_WEBVIEW_E2E__;
    if (!api) throw new Error('Scene E2E probe is not installed');
    api.setSelectedImageId(selectedImageId);
    await api.waitForRenderFrames(6);
  }, SELECTED_IMAGE_ID);
}

async function captureSceneCenter(page: Page): Promise<Buffer> {
  const box = await page.getByTestId('scene-3d').boundingBox();