Function decodeSnapshotLayers

assets/main.js:806–843

(payload, layerMetadata)

}

function decodeSnapshotLayers(payload, layerMetadata) {
  if (!payload || typeof payload !== "object" || !Array.isArray(payload.layers)) {
    throw new Error("Snapshot-Datei enthält keine gültigen Layerdaten.");
  }

  return layerMetadata.map((meta, index) => {
    const layerPayload =
      payload.layers[index] ??
      payload.layers.find((layer) => Number(layer?.layer_index) === meta.layerIndex);
    if (!layerPayload) {
      throw new Error(`Snapshot fehlt Layer ${meta.layerIndex}.`);
    }
    const weightsInfo = layerPayload.weights ?? {};
    const biasesInfo = layerPayload.biases ?? {};
    if (typeof weightsInfo.data !== "string" || typeof biasesInfo.data !== "string") {
      throw new Error("Snapshot-Layer enthält keine kodierten Gewichte.");
    }

    const weightShape = normaliseShape(weightsInfo.shape, meta.weightShape);
    const biasShape = normaliseShape(biasesInfo.shape, meta.biasShape);
    if (weightShape.length !== 2) {
      throw new Error("Snapshot-Layer hat eine ungültige Gewichtsdimension.");
    }
    if (biasShape.length === 0) {
      throw new Error("Snapshot-Layer hat eine ungültige Bias-Dimension.");
    }

    const weights = decodeWeightMatrix(weightsInfo.data, weightShape);
    const biases = decodeFloat16Base64(biasesInfo.data, biasShape[0]);
    return {
      name: typeof layerPayload.name === "string" ? layerPayload.name : meta.name,
      activation:
        typeof layerPayload.activation === "string" ? layerPayload.activation : meta.activation,
      weights,
      biases,
    };
  });
}

function hydrateTimeline(rawTimeline, options = {}) {
  if (!Array.isArray(rawTimeline)) return [];