model.py

import gc

# get socket and check if the name is vgldgx01
import socket
if socket.gethostname() != "vgldgx01":
    import spaces #[uncomment to use ZeroGPU]

import numpy as np
import PIL.Image
import torch
from controlnet_aux.util import HWC3
from diffusers import (
    ControlNetModel,
    DiffusionPipeline,
    StableDiffusionControlNetPipeline,
    StableDiffusionImg2ImgPipeline,
    UniPCMultistepScheduler,
)
from torchvision import transforms
from cv_utils import resize_image
from preprocessor import Preprocessor
from settings import MAX_IMAGE_RESOLUTION, MAX_NUM_IMAGES

CONTROLNET_MODEL_IDS = {
    # "Openpose": "lllyasviel/control_v11p_sd15_openpose",
    # "Canny": "lllyasviel/control_v11p_sd15_canny",
    # "MLSD": "lllyasviel/control_v11p_sd15_mlsd",
    # "scribble": "lllyasviel/control_v11p_sd15_scribble",
    # "softedge": "lllyasviel/control_v11p_sd15_softedge",
    # "segmentation": "lllyasviel/control_v11p_sd15_seg",
    # "depth": "lllyasviel/control_v11f1p_sd15_depth",
    # "NormalBae": "lllyasviel/control_v11p_sd15_normalbae",
    # "lineart": "lllyasviel/control_v11p_sd15_lineart",
    # "lineart_anime": "lllyasviel/control_v11p_sd15s2_lineart_anime",
    # "shuffle": "lllyasviel/control_v11e_sd15_shuffle",
    # "ip2p": "lllyasviel/control_v11e_sd15_ip2p",
    # "inpaint": "lllyasviel/control_v11e_sd15_inpaint",
    # "texnet": "/home/jyang/projects/ObjectReal/logs/train_texnet_deploy/checkpoint-55000/controlnet" # load and call 
    "texnet": "jingyangcarl/texnet",
}


def download_all_controlnet_weights() -> None:
    for model_id in CONTROLNET_MODEL_IDS.values():
        ControlNetModel.from_pretrained(model_id)


class Model:
    def __init__(
        self, base_model_id: str = "stable-diffusion-v1-5/stable-diffusion-v1-5", task_name: str = "Canny"
    ) -> None:
        self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
        self.base_model_id = ""
        self.task_name = ""
        self.pipe = self.load_pipe(base_model_id, task_name)
        self.pipe_base = StableDiffusionImg2ImgPipeline.from_pretrained(
            'runwayml/stable-diffusion-v1-5', safety_checker=None, torch_dtype=torch.float16
        ).to(self.device)
        self.preprocessor = Preprocessor()

    def load_pipe(self, base_model_id: str, task_name: str) -> DiffusionPipeline:
        if (
            base_model_id == self.base_model_id
            and task_name == self.task_name
            and hasattr(self, "pipe")
            and self.pipe is not None
        ):
            return self.pipe
        model_id = CONTROLNET_MODEL_IDS[task_name]
        controlnet = ControlNetModel.from_pretrained(model_id, torch_dtype=torch.float16)
        to_upload = False
        if to_upload:
            # confirm before uploading
            confirm = input(f"Do you want to upload {model_id} to the hub? (y/n): ")
            if confirm.lower() == "y":
                controlnet.push_to_hub("jingyangcarl/texnet")
            else:
                print("Upload cancelled.")
        pipe = StableDiffusionControlNetPipeline.from_pretrained(
            base_model_id, safety_checker=None, controlnet=controlnet, torch_dtype=torch.float16
        )
        pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config)
        pipe.to(self.device)
        if self.device.type == "cuda":
            import os
            if os.environ.get("SPACES_ZERO_GPU", "0") == "1":
                # when running on ZeroGPU, enable CPU offload
                # pipe.enable_xformers_memory_efficient_attention() doens't work
                # pipe.enable_model_cpu_offload()
                pass
            else:
                pipe.enable_xformers_memory_efficient_attention()
        torch.cuda.empty_cache()
        gc.collect()
        self.base_model_id = base_model_id
        self.task_name = task_name
        return pipe

    def set_base_model(self, base_model_id: str) -> str:
        if not base_model_id or base_model_id == self.base_model_id:
            return self.base_model_id
        del self.pipe
        torch.cuda.empty_cache()
        gc.collect()
        try:
            self.pipe = self.load_pipe(base_model_id, self.task_name)
        except Exception:  # noqa: BLE001
            self.pipe = self.load_pipe(self.base_model_id, self.task_name)
        return self.base_model_id

    def load_controlnet_weight(self, task_name: str) -> None:
        if task_name == self.task_name:
            return
        if self.pipe is not None and hasattr(self.pipe, "controlnet"):
            del self.pipe.controlnet
        torch.cuda.empty_cache()
        gc.collect()
        model_id = CONTROLNET_MODEL_IDS[task_name]
        controlnet = ControlNetModel.from_pretrained(model_id, torch_dtype=torch.float16)
        controlnet.to(self.device)
        torch.cuda.empty_cache()
        gc.collect()
        self.pipe.controlnet = controlnet
        self.task_name = task_name

    def get_prompt(self, prompt: str, additional_prompt: str) -> str:
        return additional_prompt if not prompt else f"{prompt}, {additional_prompt}"

    # @spaces.GPU #[uncomment to use ZeroGPU]
    @torch.autocast("cuda")
    def run_pipe(
        self,
        prompt: str,
        negative_prompt: str,
        control_image: PIL.Image.Image,
        num_images: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
    ) -> list[PIL.Image.Image]:
        generator = torch.Generator().manual_seed(seed)
        # self.pipe.to(self.device)
        return self.pipe(
            prompt=prompt,
            negative_prompt=negative_prompt,
            guidance_scale=guidance_scale,
            num_images_per_prompt=num_images,
            num_inference_steps=num_steps,
            generator=generator,
            image=control_image,
        ).images

    # @spaces.GPU #[uncomment to use ZeroGPU]
    @torch.inference_mode()
    def process_texnet(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        low_threshold: int,
        high_threshold: int,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        self.preprocessor.load("texnet")
        control_image = self.preprocessor(
            image=image, low_threshold=low_threshold, high_threshold=high_threshold, image_resolution=image_resolution, output_type="pil"
        )

        self.load_controlnet_weight("texnet")
        results_coarse = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )

        # use img2img pipeline
        self.pipe_backup = self.pipe
        self.pipe = self.pipe_base

        # refine
        results_fine = []
        for result_coarse in results_coarse:
            # clean up GPU cache
            torch.cuda.empty_cache()
            gc.collect()

            # masking
            mask = (np.array(control_image).sum(axis=-1) == 0)[...,None]
            image_masked = PIL.Image.fromarray(np.where(mask, control_image, result_coarse))
            image_blurry = transforms.GaussianBlur(kernel_size=5, sigma=1)(image_masked)
            result_fine = self.run_pipe(
                # prompt=prompt,
                prompt=self.get_prompt(prompt, additional_prompt),
                negative_prompt=negative_prompt,
                control_image=image_blurry,
                num_images=1,
                num_steps=num_steps,
                guidance_scale=guidance_scale,
                seed=seed,
            )[0]
            result_fine = PIL.Image.fromarray(np.where(mask, control_image, result_fine))
            results_fine.append(result_fine)

        # restore the original pipe
        self.pipe = self.pipe_backup

        return [*results_coarse], [*results_fine]

    # @spaces.GPU #[uncomment to use ZeroGPU]
    @torch.inference_mode()
    def process_canny(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        low_threshold: int,
        high_threshold: int,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        self.preprocessor.load("Canny")
        control_image = self.preprocessor(
            image=image, low_threshold=low_threshold, high_threshold=high_threshold, detect_resolution=image_resolution
        )

        self.load_controlnet_weight("Canny")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_mlsd(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        value_threshold: float,
        distance_threshold: float,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        self.preprocessor.load("MLSD")
        control_image = self.preprocessor(
            image=image,
            image_resolution=image_resolution,
            detect_resolution=preprocess_resolution,
            thr_v=value_threshold,
            thr_d=distance_threshold,
        )
        self.load_controlnet_weight("MLSD")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_scribble(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        elif preprocessor_name == "HED":
            self.preprocessor.load(preprocessor_name)
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                scribble=False,
            )
        elif preprocessor_name == "PidiNet":
            self.preprocessor.load(preprocessor_name)
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                safe=False,
            )
        self.load_controlnet_weight("scribble")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_scribble_interactive(
        self,
        image_and_mask: dict[str, np.ndarray | list[np.ndarray]] | None,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
    ) -> list[PIL.Image.Image]:
        if image_and_mask is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        image = 255 - image_and_mask["composite"]  # type: ignore
        image = HWC3(image)
        image = resize_image(image, resolution=image_resolution)
        control_image = PIL.Image.fromarray(image)

        self.load_controlnet_weight("scribble")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_softedge(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        elif preprocessor_name in ["HED", "HED safe"]:
            safe = "safe" in preprocessor_name
            self.preprocessor.load("HED")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                scribble=safe,
            )
        elif preprocessor_name in ["PidiNet", "PidiNet safe"]:
            safe = "safe" in preprocessor_name
            self.preprocessor.load("PidiNet")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                safe=safe,
            )
        else:
            raise ValueError
        self.load_controlnet_weight("softedge")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_openpose(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        else:
            self.preprocessor.load("Openpose")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                hand_and_face=True,
            )
        self.load_controlnet_weight("Openpose")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_segmentation(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        else:
            self.preprocessor.load(preprocessor_name)
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
            )
        self.load_controlnet_weight("segmentation")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_depth(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        else:
            self.preprocessor.load(preprocessor_name)
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
            )
        self.load_controlnet_weight("depth")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_normal(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        else:
            self.preprocessor.load("NormalBae")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
            )
        self.load_controlnet_weight("NormalBae")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_lineart(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        preprocess_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name in ["None", "None (anime)"]:
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        elif preprocessor_name in ["Lineart", "Lineart coarse"]:
            coarse = "coarse" in preprocessor_name
            self.preprocessor.load("Lineart")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
                coarse=coarse,
            )
        elif preprocessor_name == "Lineart (anime)":
            self.preprocessor.load("LineartAnime")
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
                detect_resolution=preprocess_resolution,
            )
        if "anime" in preprocessor_name:
            self.load_controlnet_weight("lineart_anime")
        else:
            self.load_controlnet_weight("lineart")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_shuffle(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
        preprocessor_name: str,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        if preprocessor_name == "None":
            image = HWC3(image)
            image = resize_image(image, resolution=image_resolution)
            control_image = PIL.Image.fromarray(image)
        else:
            self.preprocessor.load(preprocessor_name)
            control_image = self.preprocessor(
                image=image,
                image_resolution=image_resolution,
            )
        self.load_controlnet_weight("shuffle")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]

    @torch.inference_mode()
    def process_ip2p(
        self,
        image: np.ndarray,
        prompt: str,
        additional_prompt: str,
        negative_prompt: str,
        num_images: int,
        image_resolution: int,
        num_steps: int,
        guidance_scale: float,
        seed: int,
    ) -> list[PIL.Image.Image]:
        if image is None:
            raise ValueError
        if image_resolution > MAX_IMAGE_RESOLUTION:
            raise ValueError
        if num_images > MAX_NUM_IMAGES:
            raise ValueError

        image = HWC3(image)
        image = resize_image(image, resolution=image_resolution)
        control_image = PIL.Image.fromarray(image)
        self.load_controlnet_weight("ip2p")
        results = self.run_pipe(
            prompt=self.get_prompt(prompt, additional_prompt),
            negative_prompt=negative_prompt,
            control_image=control_image,
            num_images=num_images,
            num_steps=num_steps,
            guidance_scale=guidance_scale,
            seed=seed,
        )
        return [control_image, *results]