static async getInstance()

in janus-webgpu/src/worker.js [42:77]

• 34 lines of code
• 2 McCabe index (conditional complexity)

  static async getInstance(progress_callback = null) {
    this.processor ??= AutoProcessor.from_pretrained(this.model_id, {
      progress_callback,
    });

    this.model ??= MultiModalityCausalLM.from_pretrained(this.model_id, {
      dtype: fp16_supported
        ? {
            prepare_inputs_embeds: "q4",
            language_model: "q4f16",
            lm_head: "fp16",
            gen_head: "fp16",
            gen_img_embeds: "fp16",
            image_decode: "fp32",
          }
        : {
            prepare_inputs_embeds: "fp32",
            language_model: "q4",
            lm_head: "fp32",
            gen_head: "fp32",
            gen_img_embeds: "fp32",
            image_decode: "fp32",
          },
      device: {
        prepare_inputs_embeds: "wasm", // TODO use "webgpu" when bug is fixed
        language_model: "webgpu",
        lm_head: "webgpu",
        gen_head: "webgpu",
        gen_img_embeds: "webgpu",
        image_decode: "webgpu",
      },
      progress_callback,
    });

    return Promise.all([this.processor, this.model]);
  }