Function renderLoop

apps/desktop/src/utils/frame-worker.ts:604–807

()

}

function renderLoop() {
	_rafId = null;

	const hasRenderer =
		renderMode === "webgpu"
			? webgpuRenderer !== null
			: offscreenCanvas !== null && offscreenCtx !== null;

	if (!hasRenderer) {
		if (renderMode === "pending" && frameQueue.length > 0) {
			_rafId = requestAnimationFrame(renderLoop);
			return;
		}
		rafRunning = false;
		return;
	}

	if (useSharedBuffer && consumer && !consumer.isShutdown()) {
		if (renderMode === "webgpu" && webgpuRenderer) {
			const rendered = drainAndRenderLatestSharedWebGPU(8);
			if (rendered) {
				_rafId = requestAnimationFrame(renderLoop);
				return;
			}
		}

		let polled = 0;
		while (polled < 4 && tryPollSharedBuffer()) {
			polled++;
		}
	}

	let frameToRender: PendingFrame | null = null;
	let frameIndex = -1;

	for (let i = 0; i < frameQueue.length; i++) {
		const frame = frameQueue[i];
		if (
			frameToRender === null ||
			frame.timing.frameNumber > frameToRender.timing.frameNumber
		) {
			frameToRender = frame;
			frameIndex = i;
		}
	}

	if (frameToRender !== null) {
		for (let i = frameQueue.length - 1; i >= 0; i--) {
			if (i !== frameIndex) {
				const oldFrame = frameQueue[i];
				if (oldFrame.mode === "webgpu" && oldFrame.releaseCallback) {
					oldFrame.releaseCallback();
				}
				frameQueue.splice(i, 1);
				if (i < frameIndex) {
					frameIndex--;
				}
			}