import torch from typing import Any, Callable, Dict, List, Optional, Union from diffusers.pipelines.stable_diffusion import StableDiffusionInpaintPipeline,StableDiffusionPipelineOutput from diffusers.image_processor import PipelineImageInput, VaeImageProcessor from diffusers.callbacks import MultiPipelineCallbacks, PipelineCallback from diffusers.utils import USE_PEFT_BACKEND, deprecate, logging, scale_lora_layers, unscale_lora_layers from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_inpaint import retrieve_timesteps from diffusers.models import AsymmetricAutoencoderKL, AutoencoderKL, ImageProjection, UNet2DConditionModel from .utils import FACES,generate_cubemap_uv from diffusers import AutoPipelineForInpainting DEFAULT_VIEW_PROMPT = { "front": "view to the front, looking forward", "back": "view to the back, looking backward", "left": "view to the left side, looking left", "right": "view to the right side, looking right", "top": "view to above, looking upward, ceiling or sky", "bottom": "view to below, looking downward, floor or ground", } class CubemapDiffusionInpaintPipeline(StableDiffusionInpaintPipeline): def __init__(self, vae, text_encoder, tokenizer, unet, scheduler, safety_checker, feature_extractor, image_encoder = None, requires_safety_checker = True): super().__init__(vae, text_encoder, tokenizer, unet, scheduler, safety_checker, feature_extractor, image_encoder, requires_safety_checker) def prepare_cubemap_mask_condition(self,width: int, height: int, batch_size=6) -> torch.Tensor: # 初始化全部为 0 的 tensor，形状为 (6, 1, height, width) mask = torch.ones(size=(batch_size, 1, height, width), dtype=torch.float32) # 将第一张 mask 置为 1 mask[0] = 0 return mask @torch.no_grad() def __call__( self, global_prompt: str = None, per_face_prompts: Optional[Dict[str, str]] = None, image: PipelineImageInput = None, mask_image: PipelineImageInput = None, masked_image_latents: torch.Tensor = None, height: Optional[int] = None, width: Optional[int] = None, padding_mask_crop: Optional[int] = None, strength: float = 1.0, num_inference_steps: int = 50, timesteps: List[int] = None, sigmas: List[float] = None, guidance_scale: float = 7.5, negative_prompt: Optional[Union[str, List[str]]] = None, num_images_per_prompt: Optional[int] = 1, eta: float = 0.0, generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, latents: Optional[torch.Tensor] = None, prompt_embeds: Optional[torch.Tensor] = None, negative_prompt_embeds: Optional[torch.Tensor] = None, ip_adapter_image: Optional[PipelineImageInput] = None, ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, output_type: Optional[str] = "pil", return_dict: bool = True, cross_attention_kwargs: Optional[Dict[str, Any]] = None, clip_skip: int = None, callback_on_step_end: Optional[ Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] ] = None, callback_on_step_end_tensor_inputs: List[str] = ["latents"], **kwargs, ): r""" The call function to the pipeline for generation. Args: prompt (`str` or `List[str]`, *optional*): The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): `Image`, numpy array or tensor representing an image batch to be inpainted (which parts of the image to be masked out with `mask_image` and repainted according to `prompt`). For both numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image latents as `image`, but if passing latents directly it is not encoded again. mask_image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): `Image`, numpy array or tensor representing an image batch to mask `image`. White pixels in the mask are repainted while black pixels are preserved. If `mask_image` is a PIL image, it is converted to a single channel (luminance) before use. If it's a numpy array or pytorch tensor, it should contain one color channel (L) instead of 3, so the expected shape for pytorch tensor would be `(B, 1, H, W)`, `(B, H, W)`, `(1, H, W)`, `(H, W)`. And for numpy array would be for `(B, H, W, 1)`, `(B, H, W)`, `(H, W, 1)`, or `(H, W)`. height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): The height in pixels of the generated image. width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): The width in pixels of the generated image. padding_mask_crop (`int`, *optional*, defaults to `None`): The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region with the same aspect ration of the image and contains all masked area, and then expand that area based on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before resizing to the original image size for inpainting. This is useful when the masked area is small while the image is large and contain information irrelevant for inpainting, such as background. strength (`float`, *optional*, defaults to 1.0): Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a starting point and more noise is added the higher the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 essentially ignores `image`. num_inference_steps (`int`, *optional*, defaults to 50): The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. This parameter is modulated by `strength`. timesteps (`List[int]`, *optional*): Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. sigmas (`List[float]`, *optional*): Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. guidance_scale (`float`, *optional*, defaults to 7.5): A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. negative_prompt (`str` or `List[str]`, *optional*): The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). num_images_per_prompt (`int`, *optional*, defaults to 1): The number of images to generate per prompt. eta (`float`, *optional*, defaults to 0.0): Corresponds to parameter eta (η) from the [DDIM](https://arxiv.org/abs/2010.02502) paper. Only applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. generator (`torch.Generator` or `List[torch.Generator]`, *optional*): A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. latents (`torch.Tensor`, *optional*): Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor is generated by sampling using the supplied random `generator`. prompt_embeds (`torch.Tensor`, *optional*): Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not provided, text embeddings are generated from the `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*): Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. output_type (`str`, *optional*, defaults to `"pil"`): The output format of the generated image. Choose between `PIL.Image` or `np.array`. return_dict (`bool`, *optional*, defaults to `True`): Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a plain tuple. cross_attention_kwargs (`dict`, *optional*): A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). clip_skip (`int`, *optional*): Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of each denoising step during the inference. with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. callback_on_step_end_tensor_inputs (`List`, *optional*): The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. Examples: ```py >>> import PIL >>> import requests >>> import torch >>> from io import BytesIO >>> from diffusers import StableDiffusionInpaintPipeline >>> def download_image(url): ... response = requests.get(url) ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" >>> init_image = download_image(img_url).resize((512, 512)) >>> mask_image = download_image(mask_url).resize((512, 512)) >>> pipe = StableDiffusionInpaintPipeline.from_pretrained( ... "runwayml/stable-diffusion-inpainting", torch_dtype=torch.float16 ... ) >>> pipe = pipe.to("cuda") >>> prompt = "Face of a yellow cat, high resolution, sitting on a park bench" >>> image = pipe(prompt=prompt, image=init_image, mask_image=mask_image).images[0] ``` Returns: [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. """ callback = kwargs.pop("callback", None) callback_steps = kwargs.pop("callback_steps", None) if callback is not None: deprecate( "callback", "1.0.0", "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", ) if callback_steps is not None: deprecate( "callback_steps", "1.0.0", "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", ) if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs # 0. Default height and width to unet height = height or self.unet.config.sample_size * self.vae_scale_factor width = width or self.unet.config.sample_size * self.vae_scale_factor # # 1. Check inputs # self.check_inputs( # prompt, # image, # mask_image, # height, # width, # strength, # callback_steps, # output_type, # negative_prompt, # prompt_embeds, # negative_prompt_embeds, # ip_adapter_image, # ip_adapter_image_embeds, # callback_on_step_end_tensor_inputs, # padding_mask_crop, # ) self._guidance_scale = guidance_scale self._clip_skip = clip_skip self._cross_attention_kwargs = cross_attention_kwargs self._interrupt = False batch_size=6 if global_prompt is None and per_face_prompts is None: raise ValueError( "Provide either `global prompt` or `per_face_prompts`, or both. Can't leave them both empty" ) prompt=[] # 2. Define call parameters if global_prompt is not None and per_face_prompts is None: prompt=[f"{global_prompt},{DEFAULT_VIEW_PROMPT[f]}" for f in FACES] elif global_prompt is not None and per_face_prompts is not None: for f in FACES: if f in per_face_prompts.keys(): prompt_text=f"{global_prompt},{per_face_prompts[f]}" prompt.append(prompt_text) else: prompt.append(f"{global_prompt},{DEFAULT_VIEW_PROMPT[f]}") negative_prompt_list = None if negative_prompt is not None: if isinstance(negative_prompt, list): if len(negative_prompt) == batch_size: negative_prompt_list = negative_prompt else: raise ValueError( f"Length of `negative_prompt` list ({len(negative_prompt)}) does not match `batch_size` ({batch_size})." ) else: negative_prompt_list = [negative_prompt for _ in range(batch_size)] device = self._execution_device # 3. Encode input prompt text_encoder_lora_scale = ( cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None ) prompt_embeds, negative_prompt_embeds = self.encode_prompt( prompt, device, num_images_per_prompt, self.do_classifier_free_guidance, negative_prompt=negative_prompt_list, lora_scale=text_encoder_lora_scale, clip_skip=self.clip_skip, ) # For classifier free guidance, we need to do two forward passes. # Here we concatenate the unconditional and text embeddings into a single batch # to avoid doing two forward passes if self.do_classifier_free_guidance: prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) if ip_adapter_image is not None or ip_adapter_image_embeds is not None: image_embeds = self.prepare_ip_adapter_image_embeds( ip_adapter_image, ip_adapter_image_embeds, device, batch_size * num_images_per_prompt, self.do_classifier_free_guidance, ) # 4. set timesteps timesteps, num_inference_steps = retrieve_timesteps( self.scheduler, num_inference_steps, device, timesteps, sigmas ) timesteps, num_inference_steps = self.get_timesteps( num_inference_steps=num_inference_steps, strength=strength, device=device ) # check that number of inference steps is not < 1 - as this doesn't make sense if num_inference_steps < 1: raise ValueError( f"After adjusting the num_inference_steps by strength parameter: {strength}, the number of pipeline" f"steps is {num_inference_steps} which is < 1 and not appropriate for this pipeline." ) # at which timestep to set the initial noise (n.b. 50% if strength is 0.5) latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) # create a boolean to check if the strength is set to 1. if so then initialise the latents with pure noise is_strength_max = strength == 1.0 # 5. Preprocess mask and image # if padding_mask_crop is not None: # crops_coords = self.mask_processor.get_crop_region(mask_image, width, height, pad=padding_mask_crop) # resize_mode = "fill" # else: # crops_coords = None # resize_mode = "default" original_image = image cond_image=self.image_processor.preprocess(image,height=height,width=width) cond_image=cond_image.to(dtype=torch.float32) empty_face=torch.zeros_like(cond_image,dtype=torch.float32) init_image = [cond_image]+[empty_face for _ in range(5)] #stack the condition image with empty faces to make a tensor stack of shape (6,3,H,W) init_image=torch.stack(init_image,dim=0) # 6. Prepare latent variables num_channels_latents = self.vae.config.latent_channels num_channels_unet = self.unet.config.in_channels return_image_latents = num_channels_unet == 4 latents_outputs = self.prepare_latents( batch_size, num_channels_latents, height, width, prompt_embeds.dtype, device, generator, latents, timestep=latent_timestep, is_strength_max=is_strength_max, return_noise=True, return_image_latents=False ) if return_image_latents: latents, noise, image_latents = latents_outputs else: latents, noise = latents_outputs mask_condition=self.prepare_cubemap_mask_condition(width,height) masked_image=init_image mask, masked_image_latents = self.prepare_mask_latents( mask_condition, masked_image, batch_size, height, width, prompt_embeds.dtype, device, generator, self.do_classifier_free_guidance, ) uv_maps=generate_cubemap_uv(height//self.vae_scale_factor,width//self.vae_scale_factor) uv_channels=torch.stack([uv_maps[face] for face in FACES]).to(dtype=prompt_embeds.dtype,device=device) uv_channel_input= torch.cat([uv_channels] * 2) if self.do_classifier_free_guidance else uv_channels # # 8. Check that sizes of mask, masked image and latents match # if num_channels_unet == 9: # # default case for runwayml/stable-diffusion-inpainting # num_channels_mask = mask.shape[1] # num_channels_masked_image = masked_image_latents.shape[1] # if num_channels_latents + num_channels_mask + num_channels_masked_image != self.unet.config.in_channels: # raise ValueError( # f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" # f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" # f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" # f" = {num_channels_latents+num_channels_masked_image+num_channels_mask}. Please verify the config of" # " `pipeline.unet` or your `mask_image` or `image` input." # ) # elif num_channels_unet != 4: # raise ValueError( # f"The unet {self.unet.__class__} should have either 4 or 9 input channels, not {self.unet.config.in_channels}." # ) # 9. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) # 9.1 Add image embeds for IP-Adapter added_cond_kwargs = ( {"image_embeds": image_embeds} if ip_adapter_image is not None or ip_adapter_image_embeds is not None else None ) # 9.2 Optionally get Guidance Scale Embedding timestep_cond = None if self.unet.config.time_cond_proj_dim is not None: guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) timestep_cond = self.get_guidance_scale_embedding( guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim ).to(device=device, dtype=latents.dtype) # 10. Denoising loop num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order self._num_timesteps = len(timesteps) with self.progress_bar(total=num_inference_steps) as progress_bar: for i, t in enumerate(timesteps): if self.interrupt: continue # expand the latents if we are doing classifier free guidance latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents # concat latents, mask, masked_image_latents in the channel dimension latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) #print("Unet Channels:", num_channels_unet) if num_channels_unet == 11: latent_model_input = torch.cat([latent_model_input, mask, masked_image_latents,uv_channel_input], dim=1) #print("Latent Input Shape:",latent_model_input.shape) # predict the noise residual noise_pred = self.unet( latent_model_input, t, encoder_hidden_states=prompt_embeds, timestep_cond=timestep_cond, cross_attention_kwargs=self.cross_attention_kwargs, added_cond_kwargs=added_cond_kwargs, return_dict=False, )[0] # perform guidance if self.do_classifier_free_guidance: noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) # compute the previous noisy sample x_t -> x_t-1 latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] if num_channels_unet == 4: init_latents_proper = image_latents if self.do_classifier_free_guidance: init_mask, _ = mask.chunk(2) else: init_mask = mask if i < len(timesteps) - 1: noise_timestep = timesteps[i + 1] init_latents_proper = self.scheduler.add_noise( init_latents_proper, noise, torch.tensor([noise_timestep]) ) latents = (1 - init_mask) * init_latents_proper + init_mask * latents if callback_on_step_end is not None: callback_kwargs = {} for k in callback_on_step_end_tensor_inputs: callback_kwargs[k] = locals()[k] callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) latents = callback_outputs.pop("latents", latents) prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) mask = callback_outputs.pop("mask", mask) masked_image_latents = callback_outputs.pop("masked_image_latents", masked_image_latents) # call the callback, if provided if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): progress_bar.update() if callback is not None and i % callback_steps == 0: step_idx = i // getattr(self.scheduler, "order", 1) callback(step_idx, t, latents) if not output_type == "latent": condition_kwargs = {} if isinstance(self.vae, AsymmetricAutoencoderKL): init_image = init_image.to(device=device, dtype=masked_image_latents.dtype) init_image_condition = init_image.clone() init_image = self._encode_vae_image(init_image, generator=generator) mask_condition = mask_condition.to(device=device, dtype=masked_image_latents.dtype) condition_kwargs = {"image": init_image_condition, "mask": mask_condition} image = self.vae.decode( latents / self.vae.config.scaling_factor, return_dict=False, generator=generator, **condition_kwargs )[0] image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) else: image = latents has_nsfw_concept = None if has_nsfw_concept is None: do_denormalize = [True] * image.shape[0] else: do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) input_img=self.image_processor.postprocess(cond_image,output_type=output_type,do_denormalize=do_denormalize)[0] image[0]=input_img # if padding_mask_crop is not None: # image = [self.image_processor.apply_overlay(mask_image, original_image, i, crops_coords) for i in image] # Offload all models self.maybe_free_model_hooks() if not return_dict: return (image, has_nsfw_concept) return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept)