From b111e7d78291554cc85a8f72db9b60f262e0096b Mon Sep 17 00:00:00 2001 From: vladmandic Date: Tue, 24 Feb 2026 18:11:16 +0100 Subject: [PATCH] remove script: xadapter Signed-off-by: vladmandic --- CHANGELOG.md | 2 + scripts/xadapter/adapter.py | 308 --- scripts/xadapter/pipeline_sd_xl_adapter.py | 1460 ------------- .../pipeline_sd_xl_adapter_controlnet.py | 1826 ---------------- ...peline_sd_xl_adapter_controlnet_img2img.py | 1912 ----------------- scripts/xadapter/unet_adapter.py | 1073 --------- scripts/xadapter/utils.py | 14 - scripts/xadapter/xadapter_hijacks.py | 58 - scripts/xadapter_ext.py | 149 -- 9 files changed, 2 insertions(+), 6800 deletions(-) delete mode 100644 scripts/xadapter/adapter.py delete mode 100644 scripts/xadapter/pipeline_sd_xl_adapter.py delete mode 100644 scripts/xadapter/pipeline_sd_xl_adapter_controlnet.py delete mode 100644 scripts/xadapter/pipeline_sd_xl_adapter_controlnet_img2img.py delete mode 100644 scripts/xadapter/unet_adapter.py delete mode 100644 scripts/xadapter/utils.py delete mode 100644 scripts/xadapter/xadapter_hijacks.py delete mode 100644 scripts/xadapter_ext.py diff --git a/CHANGELOG.md b/CHANGELOG.md index e0de868b1..9babed52a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -70,6 +70,8 @@ TBD - **Obsolete** - remove `normalbae` pre-processor - remove `dwpose` pre-processor + - remove `hdm` model support + - remove `xadapter` script - **Checks** - switch to `pyproject.toml` for tool configs - update `lint` rules, thanks @awsr diff --git a/scripts/xadapter/adapter.py b/scripts/xadapter/adapter.py deleted file mode 100644 index 4b3f9f625..000000000 --- a/scripts/xadapter/adapter.py +++ /dev/null @@ -1,308 +0,0 @@ -from typing import List, Tuple -import torch -import torch.nn as nn -from collections import OrderedDict -from diffusers.models.embeddings import ( - TimestepEmbedding, - Timesteps, -) - - -def conv_nd(dims, *args, **kwargs): - """ - Create a 1D, 2D, or 3D convolution module. - """ - if dims == 1: - return nn.Conv1d(*args, **kwargs) - elif dims == 2: - return nn.Conv2d(*args, **kwargs) - elif dims == 3: - return nn.Conv3d(*args, **kwargs) - raise ValueError(f"unsupported dimensions: {dims}") - - -def avg_pool_nd(dims, *args, **kwargs): - """ - Create a 1D, 2D, or 3D average pooling module. - """ - if dims == 1: - return nn.AvgPool1d(*args, **kwargs) - elif dims == 2: - return nn.AvgPool2d(*args, **kwargs) - elif dims == 3: - return nn.AvgPool3d(*args, **kwargs) - raise ValueError(f"unsupported dimensions: {dims}") - - -def get_parameter_dtype(parameter: torch.nn.Module): - try: - params = tuple(parameter.parameters()) - if len(params) > 0: - return params[0].dtype - - buffers = tuple(parameter.buffers()) - if len(buffers) > 0: - return buffers[0].dtype - - except StopIteration: - # For torch.nn.DataParallel compatibility in PyTorch 1.5 - - def find_tensor_attributes(module: torch.nn.Module) -> List[Tuple[str, torch.Tensor]]: - tuples = [(k, v) for k, v in module.__dict__.items() if torch.is_tensor(v)] - return tuples - - gen = parameter._named_members(get_members_fn=find_tensor_attributes) - first_tuple = next(gen) - return first_tuple[1].dtype - - -class Downsample(nn.Module): - """ - A downsampling layer with an optional convolution. - :param channels: channels in the inputs and outputs. - :param use_conv: a bool determining if a convolution is applied. - :param dims: determines if the signal is 1D, 2D, or 3D. If 3D, then - downsampling occurs in the inner-two dimensions. - """ - - def __init__(self, channels, use_conv, dims=2, out_channels=None, padding=1): - super().__init__() - self.channels = channels - self.out_channels = out_channels or channels - self.use_conv = use_conv - self.dims = dims - stride = 2 if dims != 3 else (1, 2, 2) - if use_conv: - self.op = conv_nd(dims, self.channels, self.out_channels, 3, stride=stride, padding=padding) - else: - assert self.channels == self.out_channels - from torch.nn import MaxUnpool2d - self.op = MaxUnpool2d(kernel_size=stride, stride=stride) - - def forward(self, x): - assert x.shape[1] == self.channels - return self.op(x) - - -class Upsample(nn.Module): - def __init__(self, channels, use_conv, dims=2, out_channels=None, padding=1): - super().__init__() - self.channels = channels - self.out_channels = out_channels or channels - self.use_conv = use_conv - self.dims = dims - stride = 2 if dims != 3 else (1, 2, 2) - if use_conv: - self.op = nn.ConvTranspose2d(self.channels, self.out_channels, 3, stride=stride, padding=1) - else: - assert self.channels == self.out_channels - self.op = avg_pool_nd(dims, kernel_size=stride, stride=stride) - - def forward(self, x, output_size): - assert x.shape[1] == self.channels - return self.op(x, output_size) - - -class Linear(nn.Module): - def __init__(self, temb_channels, out_channels): - super(Linear, self).__init__() - self.linear = nn.Linear(temb_channels, out_channels) - - def forward(self, x): - return self.linear(x) - - - -class ResnetBlock(nn.Module): - - def __init__(self, in_c, out_c, down, up, ksize=3, sk=False, use_conv=True, enable_timestep=False, temb_channels=None, use_norm=False): - super().__init__() - self.use_norm = use_norm - self.enable_timestep = enable_timestep - ps = ksize // 2 - if in_c != out_c or sk == False: - self.in_conv = nn.Conv2d(in_c, out_c, ksize, 1, ps) - else: - self.in_conv = None - self.block1 = nn.Conv2d(out_c, out_c, 3, 1, 1) - self.act = nn.ReLU() - if use_norm: - self.norm1 = nn.GroupNorm(num_groups=32, num_channels=out_c, eps=1e-6, affine=True) - self.block2 = nn.Conv2d(out_c, out_c, ksize, 1, ps) - if sk == False: - self.skep = nn.Conv2d(in_c, out_c, ksize, 1, ps) - else: - self.skep = None - - self.down = down - self.up = up - if self.down: - self.down_opt = Downsample(in_c, use_conv=use_conv) - if self.up: - self.up_opt = Upsample(in_c, use_conv=use_conv) - if enable_timestep: - self.timestep_proj = Linear(temb_channels, out_c) - - - def forward(self, x, output_size=None, temb=None): - if self.down == True: - x = self.down_opt(x) - if self.up == True: - x = self.up_opt(x, output_size) - if self.in_conv is not None: # edit - x = self.in_conv(x) - - h = self.block1(x) - if temb is not None: - temb = self.timestep_proj(temb)[:, :, None, None] - h = h + temb - if self.use_norm: - h = self.norm1(h) - h = self.act(h) - h = self.block2(h) - if self.skep is not None: - return h + self.skep(x) - else: - return h + x - - -class Adapter_XL(nn.Module): - - def __init__(self, in_channels=[1280, 640, 320], out_channels=[1280, 1280, 640], nums_rb=3, ksize=3, sk=True, use_conv=False, use_zero_conv=True, - enable_timestep=False, use_norm=False, temb_channels=None, fusion_type='ADD'): - super(Adapter_XL, self).__init__() - self.channels = in_channels - self.nums_rb = nums_rb - self.body = [] - self.out = [] - self.use_zero_conv = use_zero_conv - self.fusion_type = fusion_type - self.gamma = [] - self.beta = [] - self.norm = [] - if fusion_type == "SPADE": - self.use_zero_conv = False - for i in range(len(self.channels)): - if self.fusion_type == 'SPADE': - # Corresponding to SPADE - self.gamma.append(nn.Conv2d(out_channels[i], out_channels[i], 1, padding=0)) - self.beta.append(nn.Conv2d(out_channels[i], out_channels[i], 1, padding=0)) - self.norm.append(nn.BatchNorm2d(out_channels[i])) - elif use_zero_conv: - self.out.append(self.make_zero_conv(out_channels[i])) - else: - self.out.append(nn.Conv2d(out_channels[i], out_channels[i], 1, padding=0)) - for j in range(nums_rb): - if i==0: - # 1280, 32, 32 -> 1280, 32, 32 - self.body.append( - ResnetBlock(in_channels[i], out_channels[i], down=False, up=False, ksize=ksize, sk=sk, use_conv=use_conv, - enable_timestep=enable_timestep, temb_channels=temb_channels, use_norm=use_norm)) - # 1280, 32, 32 -> 1280, 32, 32 - elif i==1: - # 640, 64, 64 -> 1280, 64, 64 - if j==0: - self.body.append( - ResnetBlock(in_channels[i], out_channels[i], down=False, up=False, ksize=ksize, sk=sk, - use_conv=use_conv, enable_timestep=enable_timestep, temb_channels=temb_channels, use_norm=use_norm)) - else: - self.body.append( - ResnetBlock(out_channels[i], out_channels[i], down=False, up=False, ksize=ksize,sk=sk, - use_conv=use_conv, enable_timestep=enable_timestep, temb_channels=temb_channels, use_norm=use_norm)) - else: - # 320, 64, 64 -> 640, 128, 128 - if j==0: - self.body.append( - ResnetBlock(in_channels[i], out_channels[i], down=False, up=True, ksize=ksize, sk=sk, - use_conv=True, enable_timestep=enable_timestep, temb_channels=temb_channels, use_norm=use_norm)) - # use convtranspose2d - else: - self.body.append( - ResnetBlock(out_channels[i], out_channels[i], down=False, up=False, ksize=ksize, sk=sk, - use_conv=use_conv, enable_timestep=enable_timestep, temb_channels=temb_channels, use_norm=use_norm)) - - - self.body = nn.ModuleList(self.body) - if self.use_zero_conv: - self.zero_out = nn.ModuleList(self.out) - - # if self.fusion_type == 'SPADE': - # self.norm = nn.ModuleList(self.norm) - # self.gamma = nn.ModuleList(self.gamma) - # self.beta = nn.ModuleList(self.beta) - # else: - # self.zero_out = nn.ModuleList(self.out) - - - # if enable_timestep: - # a = 320 - # - # time_embed_dim = a * 4 - # self.time_proj = Timesteps(a, True, 0) - # timestep_input_dim = a - # - # self.time_embedding = TimestepEmbedding( - # timestep_input_dim, - # time_embed_dim, - # act_fn='silu', - # post_act_fn=None, - # cond_proj_dim=None, - # ) - - - def make_zero_conv(self, channels): - - return zero_module(nn.Conv2d(channels, channels, 1, padding=0)) - - @property - def dtype(self) -> torch.dtype: - """ - `torch.dtype`: The dtype of the module (assuming that all the module parameters have the same dtype). - """ - return get_parameter_dtype(self) - - def forward(self, x, t=None): - # extract features - features = [] - b, c, _, _ = x[-1].shape - if t is not None: - if not torch.is_tensor(t): - is_mps = x[0].device.type == "mps" - dtype = torch.int32 if is_mps else torch.int64 - t = torch.tensor([t], dtype=dtype, device=x[0].device) - elif len(t.shape) == 0: - t = t[None].to(x[0].device) - - t = t.expand(b) - t = self.time_proj(t) # b, 320 - t = t.to(dtype=x[0].dtype) - t = self.time_embedding(t) # b, 1280 - output_size = (b, 640, 128, 128) # last CA layer output - for i in range(len(self.channels)): - for j in range(self.nums_rb): - idx = i * self.nums_rb + j - if j == 0: - if i < 2: - out = self.body[idx](x[i], temb=t) - else: - out = self.body[idx](x[i], output_size=output_size, temb=t) - else: - out = self.body[idx](out, temb=t) - if self.fusion_type == 'SPADE': - out_gamma = self.gamma[i](out) - out_beta = self.beta[i](out) - out = [out_gamma, out_beta] - else: - out = self.zero_out[i](out) - features.append(out) - - return features - - -def zero_module(module): - """ - Zero out the parameters of a module and return it. - """ - for p in module.parameters(): - p.detach().zero_() - return module diff --git a/scripts/xadapter/pipeline_sd_xl_adapter.py b/scripts/xadapter/pipeline_sd_xl_adapter.py deleted file mode 100644 index 788235517..000000000 --- a/scripts/xadapter/pipeline_sd_xl_adapter.py +++ /dev/null @@ -1,1460 +0,0 @@ -# Copyright 2023 The HuggingFace Team. All rights reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -import inspect -import warnings -import os -import PIL -from typing import Any, Callable, Dict, List, Optional, Tuple, Union -import torch -from transformers import CLIPTextModel, CLIPTextModelWithProjection, CLIPTokenizer -from diffusers.image_processor import VaeImageProcessor -from diffusers.loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoaderMixin -from diffusers.models import AutoencoderKL -from diffusers.models.attention_processor import ( - AttnProcessor2_0, - FusedAttnProcessor2_0, - XFormersAttnProcessor, -) -from diffusers.schedulers import KarrasDiffusionSchedulers -from diffusers.utils import ( - is_accelerate_available, - is_accelerate_version, - is_invisible_watermark_available, - logging, - replace_example_docstring, -) -from diffusers.utils.torch_utils import randn_tensor -from diffusers.pipelines.pipeline_utils import DiffusionPipeline -from diffusers.pipelines.stable_diffusion_xl import StableDiffusionXLPipelineOutput -from modules.xadapter.adapter import Adapter_XL -from modules.xadapter.unet_adapter import UNet2DConditionModel - - -if is_invisible_watermark_available(): - from diffusers.pipelines.stable_diffusion_xl.watermark import StableDiffusionXLWatermarker - -logger = logging.get_logger(__name__) # pylint: disable=invalid-name - -EXAMPLE_DOC_STRING = """ - Examples: - ```py - >>> import torch - >>> from diffusers import StableDiffusionXLPipeline - - >>> pipe = StableDiffusionXLPipeline.from_pretrained( - ... "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 - ... ) - >>> pipe = pipe.to("cuda") - - >>> prompt = "a photo of an astronaut riding a horse on mars" - >>> image = pipe(prompt).images[0] - ``` -""" - - -# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg -def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): - """ - Rescale `noise_cfg` according to `guidance_rescale`. Based on findings of [Common Diffusion Noise Schedules and - Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). See Section 3.4 - """ - std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) - std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) - # rescale the results from guidance (fixes overexposure) - noise_pred_rescaled = noise_cfg * (std_text / std_cfg) - # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images - noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg - return noise_cfg - - -class StableDiffusionXLAdapterPipeline(DiffusionPipeline, FromSingleFileMixin, LoraLoaderMixin): - r""" - Pipeline for text-to-image generation using Stable Diffusion XL. - - This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the - library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) - - In addition the pipeline inherits the following loading methods: - - *LoRA*: [`StableDiffusionXLPipeline.load_lora_weights`] - - *Ckpt*: [`loaders.FromSingleFileMixin.from_single_file`] - - as well as the following saving methods: - - *LoRA*: [`loaders.StableDiffusionXLPipeline.save_lora_weights`] - - Args: - vae ([`AutoencoderKL`]): - Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. - text_encoder ([`CLIPTextModel`]): - Frozen text-encoder. Stable Diffusion XL uses the text portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically - the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. - text_encoder_2 ([` CLIPTextModelWithProjection`]): - Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), - specifically the - [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) - variant. - tokenizer (`CLIPTokenizer`): - Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - tokenizer_2 (`CLIPTokenizer`): - Second Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. - scheduler ([`SchedulerMixin`]): - A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of - [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. - """ - - def __init__( - self, - vae: AutoencoderKL, - text_encoder: CLIPTextModel, - text_encoder_2: CLIPTextModelWithProjection, - tokenizer: CLIPTokenizer, - tokenizer_2: CLIPTokenizer, - unet: UNet2DConditionModel, - scheduler: KarrasDiffusionSchedulers, - vae_sd1_5: AutoencoderKL, - text_encoder_sd1_5: CLIPTextModel, - tokenizer_sd1_5: CLIPTokenizer, - unet_sd1_5: UNet2DConditionModel, - scheduler_sd1_5: KarrasDiffusionSchedulers, - adapter: Adapter_XL, - force_zeros_for_empty_prompt: bool = True, - add_watermarker: Optional[bool] = None, - ): - super().__init__() - - self.register_modules( - vae=vae, - text_encoder=text_encoder, - text_encoder_2=text_encoder_2, - tokenizer=tokenizer, - tokenizer_2=tokenizer_2, - unet=unet, - scheduler=scheduler, - vae_sd1_5=vae_sd1_5, - text_encoder_sd1_5=text_encoder_sd1_5, - tokenizer_sd1_5=tokenizer_sd1_5, - unet_sd1_5=unet_sd1_5, - scheduler_sd1_5=scheduler_sd1_5, - adapter=adapter, - ) - self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) - self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) - self.vae_scale_factor_sd1_5 = 2 ** (len(self.vae_sd1_5.config.block_out_channels) - 1) - self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) - self.default_sample_size = self.unet.config.sample_size - self.image_processor_sd1_5 = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor_sd1_5) - - add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() - - if add_watermarker: - self.watermark = StableDiffusionXLWatermarker() - else: - self.watermark = None - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_slicing - def enable_vae_slicing(self): - r""" - Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to - compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. - """ - self.vae.enable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_slicing - def disable_vae_slicing(self): - r""" - Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_tiling - def enable_vae_tiling(self): - r""" - Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to - compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow - processing larger images. - """ - self.vae.enable_tiling() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_tiling - def disable_vae_tiling(self): - r""" - Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_tiling() - - def enable_model_cpu_offload(self, gpu_id=0): - r""" - Offloads all models to CPU using accelerate, reducing memory usage with a low impact on performance. Compared - to `enable_sequential_cpu_offload`, this method moves one whole model at a time to the GPU when its `forward` - method is called, and the model remains in GPU until the next model runs. Memory savings are lower than with - `enable_sequential_cpu_offload`, but performance is much better due to the iterative execution of the `unet`. - """ - if is_accelerate_available() and is_accelerate_version(">=", "0.17.0.dev0"): - from accelerate import cpu_offload_with_hook - else: - raise ImportError("`enable_model_cpu_offload` requires `accelerate v0.17.0` or higher.") - - device = torch.device(f"cuda:{gpu_id}") - - - self.to("cpu", silence_dtype_warnings=True) - torch.cuda.empty_cache() # otherwise we don't see the memory savings (but they probably exist) - - model_sequence = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - model_sequence.extend([self.unet, self.vae]) - - model_sequence.extend([self.unet_sd1_5, self.vae_sd1_5, self.text_encoder_sd1_5, self.adapter]) - - hook = None - for cpu_offloaded_model in model_sequence: - _, hook = cpu_offload_with_hook(cpu_offloaded_model, device, prev_module_hook=hook) - - # We'll offload the last model manually. - self.final_offload_hook = hook - - def encode_prompt( - self, - prompt: str, - prompt_2: Optional[str] = None, - device: Optional[torch.device] = None, - num_images_per_prompt: int = 1, - do_classifier_free_guidance: bool = True, - negative_prompt: Optional[str] = None, - negative_prompt_2: Optional[str] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - device = device or self._execution_device - - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - # Define tokenizers and text encoders - tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] - text_encoders = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - - if prompt_embeds is None: - prompt_2 = prompt_2 or prompt - # textual inversion: procecss multi-vector tokens if necessary - prompt_embeds_list = [] - prompts = [prompt, prompt_2] - for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, tokenizer) - - text_inputs = tokenizer( - prompt, - padding="max_length", - max_length=tokenizer.model_max_length, - truncation=True, - return_tensors="pt", - ) - - text_input_ids = text_inputs.input_ids - untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1: -1]) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {tokenizer.model_max_length} tokens: {removed_text}" - ) - - prompt_embeds = text_encoder( - text_input_ids.to(device), - output_hidden_states=True, - ) - - # We are only ALWAYS interested in the pooled output of the final text encoder - pooled_prompt_embeds = prompt_embeds[0] - prompt_embeds = prompt_embeds.hidden_states[-2] - - prompt_embeds_list.append(prompt_embeds) - - prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) - - # get unconditional embeddings for classifier free guidance - zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt - if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: - negative_prompt_embeds = torch.zeros_like(prompt_embeds) - negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) - elif do_classifier_free_guidance and negative_prompt_embeds is None: - negative_prompt = negative_prompt or "" - negative_prompt_2 = negative_prompt_2 or negative_prompt - - uncond_tokens: List[str] - if prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt, negative_prompt_2] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = [negative_prompt, negative_prompt_2] - - negative_prompt_embeds_list = [] - for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) - - max_length = prompt_embeds.shape[1] - uncond_input = tokenizer( - negative_prompt, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - negative_prompt_embeds = text_encoder( - uncond_input.input_ids.to(device), - output_hidden_states=True, - ) - # We are only ALWAYS interested in the pooled output of the final text encoder - negative_pooled_prompt_embeds = negative_prompt_embeds[0] - negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] - - negative_prompt_embeds_list.append(negative_prompt_embeds) - - negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) - - prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - if do_classifier_free_guidance: - negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - - return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs - def prepare_extra_step_kwargs(self, generator, eta): - # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature - # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. - # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502 - # and should be between [0, 1] - - accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) - extra_step_kwargs = {} - if accepts_eta: - extra_step_kwargs["eta"] = eta - - # check if the scheduler accepts generator - accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) - if accepts_generator: - extra_step_kwargs["generator"] = generator - return extra_step_kwargs - - def check_inputs( - self, - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt=None, - negative_prompt_2=None, - prompt_embeds=None, - negative_prompt_embeds=None, - pooled_prompt_embeds=None, - negative_pooled_prompt_embeds=None, - ): - if height % 8 != 0 or width % 8 != 0: - raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") - - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt_2 is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): - raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - elif negative_prompt_2 is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - if prompt_embeds is not None and pooled_prompt_embeds is None: - raise ValueError( - "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." - ) - - if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: - raise ValueError( - "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." - ) - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents - def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - shape = (batch_size, num_channels_latents, height // self.vae_scale_factor, width // self.vae_scale_factor) - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - if latents is None: - latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - else: - latents = latents.to(device) - - # scale the initial noise by the standard deviation required by the scheduler - latents = latents * self.scheduler.init_noise_sigma - return latents - - def _get_add_time_ids(self, original_size, crops_coords_top_left, target_size, dtype): - add_time_ids = list(original_size + crops_coords_top_left + target_size) - - passed_add_embed_dim = ( - self.unet.config.addition_time_embed_dim * len(add_time_ids) + self.text_encoder_2.config.projection_dim - ) - expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features - - if expected_add_embed_dim != passed_add_embed_dim: - raise ValueError( - f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." - ) - - add_time_ids = torch.tensor([add_time_ids], dtype=dtype) - return add_time_ids - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae - def upcast_vae(self): - dtype = self.vae.dtype - self.vae.to(dtype=torch.float32) - use_torch_2_0_or_xformers = isinstance( - self.vae.decoder.mid_block.attentions[0].processor, - ( - AttnProcessor2_0, - XFormersAttnProcessor, - FusedAttnProcessor2_0, - ), - ) - # if xformers or torch_2_0 is used attention block does not need - # to be in float32 which can save lots of memory - if use_torch_2_0_or_xformers: - self.vae.post_quant_conv.to(dtype) - self.vae.decoder.conv_in.to(dtype) - self.vae.decoder.mid_block.to(dtype) - - @torch.no_grad() - @replace_example_docstring(EXAMPLE_DOC_STRING) - def __call__( - self, - prompt: Union[str, List[str]] = None, - prompt_2: Optional[Union[str, List[str]]] = None, - prompt_sd1_5: Optional[Union[str, List[str]]] = None, - height: Optional[int] = None, - width: Optional[int] = None, - height_sd1_5: Optional[int] = None, - width_sd1_5: Optional[int] = None, - num_inference_steps: int = 50, - denoising_end: Optional[float] = None, - guidance_scale: float = 5.0, - negative_prompt: Optional[Union[str, List[str]]] = None, - negative_prompt_2: 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.FloatTensor] = None, - latents_sd1_5: Optional[torch.FloatTensor] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - prompt_embeds_sd1_5: Optional[torch.FloatTensor] = None, - negative_prompt_embeds_sd1_5: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - output_type: Optional[str] = "pil", - return_dict: bool = True, - callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, - callback_steps: int = 1, - cross_attention_kwargs: Optional[Dict[str, Any]] = None, - guidance_rescale: float = 0.0, - original_size: Optional[Tuple[int, int]] = None, - crops_coords_top_left: Tuple[int, int] = (0, 0), - target_size: Optional[Tuple[int, int]] = None, - adapter_condition_scale: Optional[float] = 1.0, - adapter_guidance_start: Union[float, List[float]] = 0.5, - denoising_start: Optional[float] = None, - adapter_type: str = "de", # "de", "en", "en_de" - fusion_guidance_scale: Optional[float] = None, - enable_time_step: bool = False - ): - r""" - Function invoked when calling the pipeline for generation. - - Args: - prompt (`str` or `List[str]`, *optional*): - The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. - instead. - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - 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. - 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. - denoising_end (`float`, *optional*): - When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be - completed before it is intentionally prematurely terminated. As a result, the returned sample will - still retain a substantial amount of noise as determined by the discrete timesteps selected by the - scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a - "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image - Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - guidance_scale (`float`, *optional*, defaults to 5.0): - Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). - `guidance_scale` is defined as `w` of equation 2. of [Imagen - Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > - 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, - usually at the expense of lower image quality. - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - 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) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to - [`schedulers.DDIMScheduler`], will be ignored for others. - generator (`torch.Generator` or `List[torch.Generator]`, *optional*): - One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) - to make generation deterministic. - latents (`torch.FloatTensor`, *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 will ge generated by sampling using the supplied random `generator`. - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - output_type (`str`, *optional*, defaults to `"pil"`): - The output format of the generate image. Choose between - [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - return_dict (`bool`, *optional*, defaults to `True`): - Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead - of a plain tuple. - callback (`Callable`, *optional*): - A function that will be called every `callback_steps` steps during inference. The function will be - called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. - callback_steps (`int`, *optional*, defaults to 1): - The frequency at which the `callback` function will be called. If not specified, the callback will be - called at every step. - cross_attention_kwargs (`dict`, *optional*): - A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under - `self.processor` in - [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - guidance_rescale (`float`, *optional*, defaults to 0.7): - Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are - Flawed](https://arxiv.org/pdf/2305.08891.pdf) `guidance_scale` is defined as `φ` in equation 16. of - [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). - Guidance rescale factor should fix overexposure when using zero terminal SNR. - original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. - `original_size` defaults to `(width, height)` if not specified. Part of SDXL's micro-conditioning as - explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): - `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position - `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting - `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - For most cases, `target_size` should be set to the desired height and width of the generated image. If - not specified it will default to `(width, height)`. Part of SDXL's micro-conditioning as explained in - section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - - Examples: - - Returns: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a - `tuple`. When returning a tuple, the first element is a list with the generated images. - """ - # 0. Default height and width to unet - height = height or self.default_sample_size * self.vae_scale_factor - width = width or self.default_sample_size * self.vae_scale_factor - - height_sd1_5 = height_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - width_sd1_5 = width_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - - original_size = original_size or (height, width) - target_size = target_size or (height, width) - - # 1. Check inputs. Raise error if not correct - self.check_inputs( - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt, - negative_prompt_2, - prompt_embeds, - negative_prompt_embeds, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) - - self.check_inputs_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, height_sd1_5, width_sd1_5, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds - ) - - # 2. Define call parameters - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - device = torch.device('cuda') - - # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) - # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1` - # corresponds to doing no classifier free guidance. - do_classifier_free_guidance = guidance_scale > 1.0 - - # 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, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) = self.encode_prompt( - prompt=prompt, - prompt_2=prompt_2, - device=device, - num_images_per_prompt=num_images_per_prompt, - do_classifier_free_guidance=do_classifier_free_guidance, - negative_prompt=negative_prompt, - negative_prompt_2=negative_prompt_2, - prompt_embeds=prompt_embeds, - negative_prompt_embeds=negative_prompt_embeds, - pooled_prompt_embeds=pooled_prompt_embeds, - negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, - lora_scale=text_encoder_lora_scale, - ) - - prompt_embeds_sd1_5 = self._encode_prompt_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt, - prompt_embeds=prompt_embeds_sd1_5, - negative_prompt_embeds=negative_prompt_embeds_sd1_5, - lora_scale=text_encoder_lora_scale, - ) - # todo: implement prompt_embeds for SD1.5 - - # 4. Prepare timesteps - self.scheduler_sd1_5.set_timesteps(num_inference_steps, device=device) - timesteps_sd1_5 = self.scheduler_sd1_5.timesteps - num_inference_steps_sd1_5 = num_inference_steps - - self.scheduler.set_timesteps(num_inference_steps, device=device) - - timesteps, num_inference_steps = self.get_timesteps( - num_inference_steps, adapter_guidance_start, device, denoising_start=denoising_start - ) - latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) - - # 5. Prepare latent variables - num_channels_latents = self.unet.config.in_channels - latents = self.prepare_latents( - batch_size * num_images_per_prompt, - num_channels_latents, - height, - width, - prompt_embeds.dtype, - device, - generator, - latents, - ) - - num_channels_latents_sd1_5 = self.unet_sd1_5.config.in_channels - latents_sd1_5 = self.prepare_latents_sd1_5( - batch_size * num_images_per_prompt, - num_channels_latents_sd1_5, - height_sd1_5, - width_sd1_5, - prompt_embeds_sd1_5.dtype, - device, - generator, - latents_sd1_5, - ) - - # 6. Prepare extra step kwargs. - extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) - - # 7. Prepare added time ids & embeddings - add_text_embeds = pooled_prompt_embeds - add_time_ids = self._get_add_time_ids( - original_size, crops_coords_top_left, target_size, dtype=prompt_embeds.dtype - ) - - if do_classifier_free_guidance: - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) - add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) - add_time_ids = torch.cat([add_time_ids, add_time_ids], dim=0) - - prompt_embeds = prompt_embeds.to(device) - add_text_embeds = add_text_embeds.to(device) - add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) - - # 8. Denoising loop - num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) - - # 7.1 Apply denoising_end - if denoising_end is not None and type(denoising_end) == float and denoising_end > 0 and denoising_end < 1: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_end * self.scheduler.config.num_train_timesteps) - ) - ) - num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) - timesteps = timesteps[:num_inference_steps] - - latents_sd1_5_prior = latents_sd1_5.clone() - - with self.progress_bar(total=num_inference_steps_sd1_5) as progress_bar: - for i, t in enumerate(timesteps_sd1_5): - - #################### SD1.5 forward #################### - t_sd1_5 = timesteps_sd1_5[i] - - latent_model_input = torch.cat([latents_sd1_5_prior] * 2) if do_classifier_free_guidance else latents_sd1_5_prior - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - # predict the noise residual - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - return_hidden_states=False - ) - noise_pred = unet_output.sample - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - latents_sd1_5_prior = self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5_prior, **extra_step_kwargs, return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - # call the callback, if provided - if i == len(timesteps_sd1_5) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler_sd1_5.order == 0): - progress_bar.update() - - add_noise = True if denoising_start is None else False - latents = self.prepare_xl_latents_from_sd_1_5(latents_sd1_5_prior, latent_timestep, batch_size, - num_images_per_prompt, height, width, prompt_embeds.dtype, device, - generator=generator, add_noise=add_noise) - latents_sd1_5 = self.sd1_5_add_noise(latents_sd1_5_prior, latent_timestep, generator, device, - prompt_embeds.dtype) - - with self.progress_bar(total=num_inference_steps) as progress_bar: - for i, t in enumerate(timesteps): - # expand the latents if we are doing classifier free guidance - - #################### SD1.5 forward #################### - t_sd1_5 = timesteps_sd1_5[i] - latent_model_input = torch.cat([latents_sd1_5] * 2) if do_classifier_free_guidance else latents - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - return_hidden_states=True, - return_encoder_feature=True - ) - noise_pred = unet_output.sample - hidden_states = unet_output.hidden_states - encoder_feature = unet_output.encoder_feature - - - # adapter forward - if adapter_type == "de": - down_bridge_residuals = None - up_block_additional_residual = self.adapter(hidden_states, t=t_sd1_5 if enable_time_step else None) - for xx in range(len(up_block_additional_residual)): - up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - elif adapter_type == "en": - up_block_additional_residual = None - down_bridge_residuals = self.adapter(encoder_feature) - for xx in range(len(down_bridge_residuals)): - down_bridge_residuals[xx] = down_bridge_residuals[xx] * adapter_condition_scale - else: - dict = self.adapter(x=hidden_states, enc_x=encoder_feature) - down_bridge_residuals = dict['encoder_features'] - up_block_additional_residual = dict['decoder_features'] - for xx in range(len(up_block_additional_residual)): - up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - for xx in range(len(down_bridge_residuals)): - down_bridge_residuals[xx] = down_bridge_residuals[xx] * adapter_condition_scale - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - - if self.scheduler_sd1_5.num_inference_steps == self.scheduler_sd1_5._step_index: # VM PATCH - self.scheduler_sd1_5._step_index = 0 - latents_sd1_5 = self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5, **extra_step_kwargs, - return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents - - latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) - - # predict the noise residual - added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} - - noise_pred = self.unet( - latent_model_input, - t, - encoder_hidden_states=prompt_embeds, - cross_attention_kwargs=cross_attention_kwargs, - added_cond_kwargs=added_cond_kwargs, - up_block_additional_residual=up_block_additional_residual, - down_bridge_residuals=down_bridge_residuals, - return_dict=False, - fusion_guidance_scale=fusion_guidance_scale - )[0] - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # 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] - - # 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: - callback(i, t, latents) - - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.dtype == torch.float16 and self.vae.config.force_upcast: - self.upcast_vae() - latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) - - if not output_type == "latent": - image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] - else: - image = latents - return StableDiffusionXLPipelineOutput(images=image) - - # apply watermark if available - if self.watermark is not None: - image = self.watermark.apply_watermark(image) - - image = self.image_processor.postprocess(image, output_type=output_type) - - # Offload last model to CPU - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.final_offload_hook.offload() - - if not return_dict: - return (image,) - - return StableDiffusionXLPipelineOutput(images=image) - - # Overrride to properly handle the loading and unloading of the additional text encoder. - def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Dict[str, torch.Tensor]], **kwargs): - # We could have accessed the unet config from `lora_state_dict()` too. We pass - # it here explicitly to be able to tell that it's coming from an SDXL - # pipeline. - state_dict, network_alphas = self.lora_state_dict( - pretrained_model_name_or_path_or_dict, - unet_config=self.unet.config, - **kwargs, - ) - self.load_lora_into_unet(state_dict, network_alphas=network_alphas, unet=self.unet) - - text_encoder_state_dict = {k: v for k, v in state_dict.items() if "text_encoder." in k} - if len(text_encoder_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder, - prefix="text_encoder", - lora_scale=self.lora_scale, - ) - - text_encoder_2_state_dict = {k: v for k, v in state_dict.items() if "text_encoder_2." in k} - if len(text_encoder_2_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_2_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder_2, - prefix="text_encoder_2", - lora_scale=self.lora_scale, - ) - - @classmethod - def save_lora_weights( - self, - save_directory: Union[str, os.PathLike], - unet_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_2_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - is_main_process: bool = True, - weight_name: str = None, - save_function: Callable = None, - safe_serialization: bool = True, - ): - state_dict = {} - - def pack_weights(layers, prefix): - layers_weights = layers.state_dict() if isinstance(layers, torch.nn.Module) else layers - layers_state_dict = {f"{prefix}.{module_name}": param for module_name, param in layers_weights.items()} - return layers_state_dict - - state_dict.update(pack_weights(unet_lora_layers, "unet")) - - if text_encoder_lora_layers and text_encoder_2_lora_layers: - state_dict.update(pack_weights(text_encoder_lora_layers, "text_encoder")) - state_dict.update(pack_weights(text_encoder_2_lora_layers, "text_encoder_2")) - - self.write_lora_layers( - state_dict=state_dict, - save_directory=save_directory, - is_main_process=is_main_process, - weight_name=weight_name, - save_function=save_function, - safe_serialization=safe_serialization, - ) - - def _remove_text_encoder_monkey_patch(self): - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder) - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder_2) - - def _encode_prompt_sd1_5( - self, - prompt, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt=None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - if prompt_embeds is None: - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, self.tokenizer_sd1_5) - - text_inputs = self.tokenizer_sd1_5( - prompt, - padding="max_length", - max_length=self.tokenizer_sd1_5.model_max_length, - truncation=True, - return_tensors="pt", - ) - text_input_ids = text_inputs.input_ids - untruncated_ids = self.tokenizer_sd1_5(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = self.tokenizer_sd1_5.batch_decode( - untruncated_ids[:, self.tokenizer_sd1_5.model_max_length - 1: -1] - ) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {self.tokenizer_sd1_5.model_max_length} tokens: {removed_text}" - ) - - if hasattr(self.text_encoder_sd1_5.config, - "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = text_inputs.attention_mask.to(device) - else: - attention_mask = None - - prompt_embeds = self.text_encoder_sd1_5( - text_input_ids.to(device), - attention_mask=attention_mask, - ) - prompt_embeds = prompt_embeds[0] - - if self.text_encoder_sd1_5 is not None: - prompt_embeds_dtype = self.text_encoder_sd1_5.dtype - elif self.unet_sd1_5 is not None: - prompt_embeds_dtype = self.unet_sd1_5.dtype - else: - prompt_embeds_dtype = prompt_embeds.dtype - - prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - # get unconditional embeddings for classifier free guidance - if do_classifier_free_guidance and negative_prompt_embeds is None: - uncond_tokens: List[str] - if negative_prompt is None: - uncond_tokens = [""] * batch_size - elif prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = negative_prompt - - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer_sd1_5) - - max_length = prompt_embeds.shape[1] - uncond_input = self.tokenizer_sd1_5( - uncond_tokens, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - if hasattr(self.text_encoder_sd1_5.config, - "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = uncond_input.attention_mask.to(device) - else: - attention_mask = None - - negative_prompt_embeds = self.text_encoder_sd1_5( - uncond_input.input_ids.to(device), - attention_mask=attention_mask, - ) - negative_prompt_embeds = negative_prompt_embeds[0] - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - - negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - # 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 - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) - - return prompt_embeds - - def decode_latents_sd1_5(self, latents): - warnings.warn( - "The decode_latents method is deprecated and will be removed in a future version. Please" - " use VaeImageProcessor instead", - FutureWarning, - ) - latents = 1 / self.vae_sd1_5.config.scaling_factor * latents - image = self.vae_sd1_5.decode(latents, return_dict=False)[0] - image = (image / 2 + 0.5).clamp(0, 1) - # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 - image = image.cpu().permute(0, 2, 3, 1).float().numpy() - return image - - def check_inputs_sd1_5( - self, - prompt, - height, - width, - callback_steps, - negative_prompt=None, - prompt_embeds=None, - negative_prompt_embeds=None, - ): - if height % 8 != 0 or width % 8 != 0: - raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") - - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - def prepare_xl_latents_from_sd_1_5( - self, latent, timestep, batch_size, num_images_per_prompt, height, width, dtype, device, generator=None, - add_noise=True - ): - # sd1.5 latent -> img - image = self.vae_sd1_5.decode(latent / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - image = image.resize((height, width)) - # image.save('./test_img/image_sd1_5.jpg') - # input() - - if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): - raise ValueError( - f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" - ) - - # Offload text encoder if `enable_model_cpu_offload` was enabled - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.text_encoder_2.to("cpu") - torch.cuda.empty_cache() - - image = self.image_processor.preprocess(image) - - image = image.to(device=device, dtype=dtype) - - batch_size = batch_size * num_images_per_prompt - - if image.shape[1] == 4: - init_latents = image - - else: - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.config.force_upcast: - image = image.float() - self.vae.to(dtype=torch.float32) - - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - elif isinstance(generator, list): - init_latents = [ - self.vae.encode(image[i: i + 1]).latent_dist.sample(generator[i]) for i in range(batch_size) - ] - init_latents = torch.cat(init_latents, dim=0) - else: - init_latents = self.vae.encode(image).latent_dist.sample(generator) - - if self.vae.config.force_upcast: - self.vae.to(dtype) - - init_latents = init_latents.to(dtype) - init_latents = self.vae.config.scaling_factor * init_latents - - if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: - # expand init_latents for batch_size - additional_image_per_prompt = batch_size // init_latents.shape[0] - init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) - elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: - raise ValueError( - f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." - ) - else: - init_latents = torch.cat([init_latents], dim=0) - - if add_noise: - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - latents = init_latents - - return latents - - def sd1_5_add_noise(self, init_latents, timestep, generator, device, dtype): - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - image = self.vae_sd1_5.decode(init_latents / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - # image.save(f'./test_img/noisy_image_sd1_5_{int(timestep)}.jpg') - - return init_latents - - def get_timesteps(self, num_inference_steps, strength, device, denoising_start=None): - # get the original timestep using init_timestep - if denoising_start is None: - init_timestep = min(int(num_inference_steps * strength), num_inference_steps) - t_start = max(num_inference_steps - init_timestep, 0) - else: - t_start = 0 - - timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] - - # Strength is irrelevant if we directly request a timestep to start at; - # that is, strength is determined by the denoising_start instead. - if denoising_start is not None: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_start * self.scheduler.config.num_train_timesteps) - ) - ) - timesteps = list(filter(lambda ts: ts < discrete_timestep_cutoff, timesteps)) - return torch.tensor(timesteps), len(timesteps) - - return timesteps, num_inference_steps - t_start - - def prepare_latents_sd1_5(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - shape = (batch_size, num_channels_latents, height // self.vae_scale_factor_sd1_5, width // self.vae_scale_factor_sd1_5) - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - if latents is None: - latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - else: - latents = latents.to(device) - - # scale the initial noise by the standard deviation required by the scheduler - latents = latents * self.scheduler_sd1_5.init_noise_sigma - return latents diff --git a/scripts/xadapter/pipeline_sd_xl_adapter_controlnet.py b/scripts/xadapter/pipeline_sd_xl_adapter_controlnet.py deleted file mode 100644 index 853b49e26..000000000 --- a/scripts/xadapter/pipeline_sd_xl_adapter_controlnet.py +++ /dev/null @@ -1,1826 +0,0 @@ -# Copyright 2023 The HuggingFace Team. All rights reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -import inspect -import os -from typing import Any, Callable, Dict, List, Optional, Tuple, Union -import warnings - -import torch -import PIL -import numpy as np -import torch.nn.functional as F -from transformers import CLIPTextModel, CLIPTextModelWithProjection, CLIPTokenizer - -from diffusers.image_processor import VaeImageProcessor -from diffusers.loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoaderMixin -# from diffusers.models import AutoencoderKL, UNet2DConditionModel -from diffusers.models import AutoencoderKL, ControlNetModel - -from diffusers.models.attention_processor import ( - AttnProcessor2_0, - FusedAttnProcessor2_0, - XFormersAttnProcessor, -) -from diffusers.schedulers import KarrasDiffusionSchedulers -from diffusers.utils import ( - is_accelerate_available, - is_accelerate_version, - is_invisible_watermark_available, - logging, - replace_example_docstring, -) -from diffusers.utils.torch_utils import randn_tensor -from diffusers.pipelines.pipeline_utils import DiffusionPipeline -from diffusers.pipelines.stable_diffusion_xl import StableDiffusionXLPipelineOutput -from diffusers.pipelines.controlnet.multicontrolnet import MultiControlNetModel -from modules.xadapter.adapter import Adapter_XL -from modules.xadapter.unet_adapter import UNet2DConditionModel - -if is_invisible_watermark_available(): - from diffusers.pipelines.stable_diffusion_xl.watermark import StableDiffusionXLWatermarker - - -logger = logging.get_logger(__name__) # pylint: disable=invalid-name - -EXAMPLE_DOC_STRING = """ - Examples: - ```py - >>> import torch - >>> from diffusers import StableDiffusionXLPipeline - - >>> pipe = StableDiffusionXLPipeline.from_pretrained( - ... "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 - ... ) - >>> pipe = pipe.to("cuda") - - >>> prompt = "a photo of an astronaut riding a horse on mars" - >>> image = pipe(prompt).images[0] - ``` -""" - - -# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg -def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): - """ - Rescale `noise_cfg` according to `guidance_rescale`. Based on findings of [Common Diffusion Noise Schedules and - Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). See Section 3.4 - """ - std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) - std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) - # rescale the results from guidance (fixes overexposure) - noise_pred_rescaled = noise_cfg * (std_text / std_cfg) - # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images - noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg - return noise_cfg - - -class StableDiffusionXLAdapterControlnetPipeline(DiffusionPipeline, FromSingleFileMixin, LoraLoaderMixin): - r""" - Pipeline for text-to-image generation using Stable Diffusion XL. - - This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the - library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) - - In addition the pipeline inherits the following loading methods: - - *LoRA*: [`StableDiffusionXLPipeline.load_lora_weights`] - - *Ckpt*: [`loaders.FromSingleFileMixin.from_single_file`] - - as well as the following saving methods: - - *LoRA*: [`loaders.StableDiffusionXLPipeline.save_lora_weights`] - - Args: - vae ([`AutoencoderKL`]): - Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. - text_encoder ([`CLIPTextModel`]): - Frozen text-encoder. Stable Diffusion XL uses the text portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically - the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. - text_encoder_2 ([` CLIPTextModelWithProjection`]): - Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), - specifically the - [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) - variant. - tokenizer (`CLIPTokenizer`): - Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - tokenizer_2 (`CLIPTokenizer`): - Second Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. - scheduler ([`SchedulerMixin`]): - A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of - [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. - """ - - def __init__( - self, - vae: AutoencoderKL, - text_encoder: CLIPTextModel, - text_encoder_2: CLIPTextModelWithProjection, - tokenizer: CLIPTokenizer, - tokenizer_2: CLIPTokenizer, - unet: UNet2DConditionModel, - scheduler: KarrasDiffusionSchedulers, - vae_sd1_5: AutoencoderKL, - text_encoder_sd1_5: CLIPTextModel, - tokenizer_sd1_5: CLIPTokenizer, - unet_sd1_5: UNet2DConditionModel, - scheduler_sd1_5: KarrasDiffusionSchedulers, - adapter: Adapter_XL, - controlnet: ControlNetModel, - force_zeros_for_empty_prompt: bool = True, - add_watermarker: Optional[bool] = None, - ): - super().__init__() - - self.register_modules( - vae=vae, - text_encoder=text_encoder, - text_encoder_2=text_encoder_2, - tokenizer=tokenizer, - tokenizer_2=tokenizer_2, - unet=unet, - scheduler=scheduler, - vae_sd1_5=vae_sd1_5, - text_encoder_sd1_5=text_encoder_sd1_5, - tokenizer_sd1_5=tokenizer_sd1_5, - unet_sd1_5=unet_sd1_5, - scheduler_sd1_5=scheduler_sd1_5, - adapter=adapter, - controlnet=controlnet - ) - self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) - self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) - self.vae_scale_factor_sd1_5 = 2 ** (len(self.vae_sd1_5.config.block_out_channels) - 1) - self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) - self.default_sample_size = self.unet.config.sample_size - self.control_image_processor = VaeImageProcessor( - vae_scale_factor=self.vae_scale_factor_sd1_5, do_convert_rgb=True, do_normalize=False - ) - self.image_processor_sd1_5 = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor_sd1_5) - - add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() - - if add_watermarker: - self.watermark = StableDiffusionXLWatermarker() - else: - self.watermark = None - - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_slicing - def enable_vae_slicing(self): - r""" - Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to - compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. - """ - self.vae.enable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_slicing - def disable_vae_slicing(self): - r""" - Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_tiling - def enable_vae_tiling(self): - r""" - Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to - compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow - processing larger images. - """ - self.vae.enable_tiling() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_tiling - def disable_vae_tiling(self): - r""" - Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_tiling() - - def enable_model_cpu_offload(self, gpu_id=0): - r""" - Offloads all models to CPU using accelerate, reducing memory usage with a low impact on performance. Compared - to `enable_sequential_cpu_offload`, this method moves one whole model at a time to the GPU when its `forward` - method is called, and the model remains in GPU until the next model runs. Memory savings are lower than with - `enable_sequential_cpu_offload`, but performance is much better due to the iterative execution of the `unet`. - """ - if is_accelerate_available() and is_accelerate_version(">=", "0.17.0.dev0"): - from accelerate import cpu_offload_with_hook - else: - raise ImportError("`enable_model_cpu_offload` requires `accelerate v0.17.0` or higher.") - - device = torch.device(f"cuda:{gpu_id}") - - if device.type != "cpu": - self.to("cpu", silence_dtype_warnings=True) - torch.cuda.empty_cache() # otherwise we don't see the memory savings (but they probably exist) - - model_sequence = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - model_sequence.extend([self.unet, self.vae]) - - model_sequence.extend([self.unet_sd1_5, self.vae_sd1_5, self.text_encoder_sd1_5]) - model_sequence.extend([self.controlnet, self.adapter]) - - hook = None - for cpu_offloaded_model in model_sequence: - _, hook = cpu_offload_with_hook(cpu_offloaded_model, device, prev_module_hook=hook) - - # We'll offload the last model manually. - self.final_offload_hook = hook - - def encode_prompt( - self, - prompt: str, - prompt_2: Optional[str] = None, - device: Optional[torch.device] = None, - num_images_per_prompt: int = 1, - do_classifier_free_guidance: bool = True, - negative_prompt: Optional[str] = None, - negative_prompt_2: Optional[str] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - device = device or self._execution_device - - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - # Define tokenizers and text encoders - tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] - text_encoders = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - - if prompt_embeds is None: - prompt_2 = prompt_2 or prompt - # textual inversion: procecss multi-vector tokens if necessary - prompt_embeds_list = [] - prompts = [prompt, prompt_2] - for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, tokenizer) - - text_inputs = tokenizer( - prompt, - padding="max_length", - max_length=tokenizer.model_max_length, - truncation=True, - return_tensors="pt", - ) - - text_input_ids = text_inputs.input_ids - untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {tokenizer.model_max_length} tokens: {removed_text}" - ) - - prompt_embeds = text_encoder( - text_input_ids.to(device), - output_hidden_states=True, - ) - - # We are only ALWAYS interested in the pooled output of the final text encoder - pooled_prompt_embeds = prompt_embeds[0] - prompt_embeds = prompt_embeds.hidden_states[-2] - - prompt_embeds_list.append(prompt_embeds) - - prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) - - # get unconditional embeddings for classifier free guidance - zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt - if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: - negative_prompt_embeds = torch.zeros_like(prompt_embeds) - negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) - elif do_classifier_free_guidance and negative_prompt_embeds is None: - negative_prompt = negative_prompt or "" - negative_prompt_2 = negative_prompt_2 or negative_prompt - - uncond_tokens: List[str] - if prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt, negative_prompt_2] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = [negative_prompt, negative_prompt_2] - - negative_prompt_embeds_list = [] - for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) - - max_length = prompt_embeds.shape[1] - uncond_input = tokenizer( - negative_prompt, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - negative_prompt_embeds = text_encoder( - uncond_input.input_ids.to(device), - output_hidden_states=True, - ) - # We are only ALWAYS interested in the pooled output of the final text encoder - negative_pooled_prompt_embeds = negative_prompt_embeds[0] - negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] - - negative_prompt_embeds_list.append(negative_prompt_embeds) - - negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) - - prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - if do_classifier_free_guidance: - negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - - return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs - def prepare_extra_step_kwargs(self, generator, eta): - # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature - # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. - # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502 - # and should be between [0, 1] - - accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) - extra_step_kwargs = {} - if accepts_eta: - extra_step_kwargs["eta"] = eta - - # check if the scheduler accepts generator - accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) - if accepts_generator: - extra_step_kwargs["generator"] = generator - return extra_step_kwargs - - def check_inputs( - self, - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt=None, - negative_prompt_2=None, - prompt_embeds=None, - negative_prompt_embeds=None, - pooled_prompt_embeds=None, - negative_pooled_prompt_embeds=None, - ): - if height % 8 != 0 or width % 8 != 0: - raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") - - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt_2 is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): - raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - elif negative_prompt_2 is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - if prompt_embeds is not None and pooled_prompt_embeds is None: - raise ValueError( - "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." - ) - - if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: - raise ValueError( - "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." - ) - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents - def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - shape = (batch_size, num_channels_latents, height // self.vae_scale_factor, width // self.vae_scale_factor) - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - if latents is None: - latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - else: - latents = latents.to(device) - - # scale the initial noise by the standard deviation required by the scheduler - latents = latents * self.scheduler.init_noise_sigma - return latents - - def _get_add_time_ids(self, original_size, crops_coords_top_left, target_size, dtype): - add_time_ids = list(original_size + crops_coords_top_left + target_size) - - passed_add_embed_dim = ( - self.unet.config.addition_time_embed_dim * len(add_time_ids) + self.text_encoder_2.config.projection_dim - ) - expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features - - if expected_add_embed_dim != passed_add_embed_dim: - raise ValueError( - f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." - ) - - add_time_ids = torch.tensor([add_time_ids], dtype=dtype) - return add_time_ids - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae - def upcast_vae(self): - dtype = self.vae.dtype - self.vae.to(dtype=torch.float32) - use_torch_2_0_or_xformers = isinstance( - self.vae.decoder.mid_block.attentions[0].processor, - ( - AttnProcessor2_0, - XFormersAttnProcessor, - FusedAttnProcessor2_0, - ), - ) - # if xformers or torch_2_0 is used attention block does not need - # to be in float32 which can save lots of memory - if use_torch_2_0_or_xformers: - self.vae.post_quant_conv.to(dtype) - self.vae.decoder.conv_in.to(dtype) - self.vae.decoder.mid_block.to(dtype) - - @torch.no_grad() - @replace_example_docstring(EXAMPLE_DOC_STRING) - def __call__( - self, - prompt: Union[str, List[str]] = None, - prompt_2: Optional[Union[str, List[str]]] = None, - prompt_sd1_5: Optional[Union[str, List[str]]] = None, - height: Optional[int] = None, - width: Optional[int] = None, - height_sd1_5: Optional[int] = None, - width_sd1_5: Optional[int] = None, - image: Union[ - torch.FloatTensor, - PIL.Image.Image, - np.ndarray, - List[torch.FloatTensor], - List[PIL.Image.Image], - List[np.ndarray], - ] = None, - num_inference_steps: int = 50, - denoising_end: Optional[float] = None, - guidance_scale: float = 5.0, - negative_prompt: Optional[Union[str, List[str]]] = None, - negative_prompt_2: 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.FloatTensor] = None, - latents_sd1_5: Optional[torch.FloatTensor] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - output_type: Optional[str] = "pil", - return_dict: bool = True, - callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, - callback_steps: int = 1, - cross_attention_kwargs: Optional[Dict[str, Any]] = None, - guidance_rescale: float = 0.0, - original_size: Optional[Tuple[int, int]] = None, - crops_coords_top_left: Tuple[int, int] = (0, 0), - target_size: Optional[Tuple[int, int]] = None, - controlnet_conditioning_scale: Union[float, List[float]] = 1.0, - adapter_condition_scale: Optional[float] = 1.0, - guess_mode: bool = False, - control_guidance_start: Union[float, List[float]] = 0.0, - control_guidance_end: Union[float, List[float]] = 1.0, - adapter_guidance_start: Union[float, List[float]] = 0.5, - denoising_start: Optional[float] = None, - filter_scale: Optional[float] = 0.9, - filter_range: Optional[int] = 1, - fusion_guidance_scale: Optional[float] = None, - enable_time_step: bool = False, - fusion_type: Optional[str] = 'ADD', - ): - r""" - Function invoked when calling the pipeline for generation. - - Args: - prompt (`str` or `List[str]`, *optional*): - The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. - instead. - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - 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. - 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. - denoising_end (`float`, *optional*): - When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be - completed before it is intentionally prematurely terminated. As a result, the returned sample will - still retain a substantial amount of noise as determined by the discrete timesteps selected by the - scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a - "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image - Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - guidance_scale (`float`, *optional*, defaults to 5.0): - Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). - `guidance_scale` is defined as `w` of equation 2. of [Imagen - Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > - 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, - usually at the expense of lower image quality. - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - 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) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to - [`schedulers.DDIMScheduler`], will be ignored for others. - generator (`torch.Generator` or `List[torch.Generator]`, *optional*): - One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) - to make generation deterministic. - latents (`torch.FloatTensor`, *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 will ge generated by sampling using the supplied random `generator`. - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - output_type (`str`, *optional*, defaults to `"pil"`): - The output format of the generate image. Choose between - [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - return_dict (`bool`, *optional*, defaults to `True`): - Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead - of a plain tuple. - callback (`Callable`, *optional*): - A function that will be called every `callback_steps` steps during inference. The function will be - called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. - callback_steps (`int`, *optional*, defaults to 1): - The frequency at which the `callback` function will be called. If not specified, the callback will be - called at every step. - cross_attention_kwargs (`dict`, *optional*): - A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under - `self.processor` in - [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - guidance_rescale (`float`, *optional*, defaults to 0.7): - Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are - Flawed](https://arxiv.org/pdf/2305.08891.pdf) `guidance_scale` is defined as `φ` in equation 16. of - [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). - Guidance rescale factor should fix overexposure when using zero terminal SNR. - original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. - `original_size` defaults to `(width, height)` if not specified. Part of SDXL's micro-conditioning as - explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): - `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position - `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting - `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - For most cases, `target_size` should be set to the desired height and width of the generated image. If - not specified it will default to `(width, height)`. Part of SDXL's micro-conditioning as explained in - section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - - Examples: - - Returns: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a - `tuple`. When returning a tuple, the first element is a list with the generated images. - """ - # 0. Default height and width to unet - - controlnet = self.controlnet - - skip_adapter_steps = int(adapter_guidance_start * num_inference_steps) - - # align format for control guidance - if not isinstance(control_guidance_start, list) and isinstance(control_guidance_end, list): - control_guidance_start = len(control_guidance_end) * [control_guidance_start] - elif not isinstance(control_guidance_end, list) and isinstance(control_guidance_start, list): - control_guidance_end = len(control_guidance_start) * [control_guidance_end] - elif not isinstance(control_guidance_start, list) and not isinstance(control_guidance_end, list): - mult = len(controlnet.nets) if isinstance(controlnet, MultiControlNetModel) else 1 - control_guidance_start, control_guidance_end = mult * [control_guidance_start], mult * [ - control_guidance_end - ] - - height = height or self.default_sample_size * self.vae_scale_factor - width = width or self.default_sample_size * self.vae_scale_factor - - height_sd1_5 = height_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - width_sd1_5 = width_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - - original_size = original_size or (height, width) - target_size = target_size or (height, width) - - # 1. Check inputs. Raise error if not correct - self.check_inputs( - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt, - negative_prompt_2, - prompt_embeds, - negative_prompt_embeds, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) - - self.check_inputs_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, - image, - callback_steps, - negative_prompt, - prompt_embeds, - negative_prompt_embeds, - controlnet_conditioning_scale, - control_guidance_start, - control_guidance_end, - ) - - # 2. Define call parameters - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - device = torch.device('cuda') - - if isinstance(controlnet, MultiControlNetModel) and isinstance(controlnet_conditioning_scale, float): - controlnet_conditioning_scale = [controlnet_conditioning_scale] * len(controlnet.nets) - - global_pool_conditions = ( - controlnet.config.global_pool_conditions - if isinstance(controlnet, ControlNetModel) - else controlnet.nets[0].config.global_pool_conditions - ) - guess_mode = guess_mode or global_pool_conditions - - # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) - # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1` - # corresponds to doing no classifier free guidance. - do_classifier_free_guidance = guidance_scale > 1.0 - - # prepare controlnet image - if isinstance(controlnet, ControlNetModel): - image = self.prepare_image( - image=image, - width=width_sd1_5, - height=height_sd1_5, - batch_size=batch_size * num_images_per_prompt, - num_images_per_prompt=num_images_per_prompt, - device=device, - dtype=controlnet.dtype, - do_classifier_free_guidance=do_classifier_free_guidance, - guess_mode=guess_mode, - ) - height_sd1_5, width_sd1_5 = image.shape[-2:] - elif isinstance(controlnet, MultiControlNetModel): - images = [] - - for image_ in image: - image_ = self.prepare_image( - image=image_, - width=width_sd1_5, - height=height_sd1_5, - batch_size=batch_size * num_images_per_prompt, - num_images_per_prompt=num_images_per_prompt, - device=device, - dtype=controlnet.dtype, - do_classifier_free_guidance=do_classifier_free_guidance, - guess_mode=guess_mode, - ) - - images.append(image_) - - image = images - height_sd1_5, width_sd1_5 = image[0].shape[-2:] - else: - assert False - - # 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, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) = self.encode_prompt( - prompt=prompt, - prompt_2=prompt_2, - device=device, - num_images_per_prompt=num_images_per_prompt, - do_classifier_free_guidance=do_classifier_free_guidance, - negative_prompt=negative_prompt, - negative_prompt_2=negative_prompt_2, - prompt_embeds=prompt_embeds, - negative_prompt_embeds=negative_prompt_embeds, - pooled_prompt_embeds=pooled_prompt_embeds, - negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, - lora_scale=text_encoder_lora_scale, - ) - - prompt_embeds_sd1_5 = self._encode_prompt_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt, - prompt_embeds=None, - negative_prompt_embeds=None, - lora_scale=text_encoder_lora_scale, - ) - # todo: implement prompt_embeds for SD1.5 - - # 4. Prepare timesteps - self.scheduler_sd1_5.set_timesteps(num_inference_steps, device=device) - timesteps_sd1_5 = self.scheduler_sd1_5.timesteps - num_inference_steps_sd1_5 = num_inference_steps - - # self.scheduler.set_timesteps(num_inference_steps-skip_adapter_steps, device=device) - self.scheduler.set_timesteps(num_inference_steps, device=device) - # timesteps = self.scheduler.timesteps - - timesteps, num_inference_steps = self.get_timesteps( - num_inference_steps, adapter_guidance_start, device, denoising_start=denoising_start - ) - latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) - - - # 5. Prepare latent variables - # if skip_adapter_steps <= 0: - num_channels_latents = self.unet.config.in_channels - latents = self.prepare_latents( - batch_size * num_images_per_prompt, - num_channels_latents, - height, - width, - prompt_embeds.dtype, - device, - generator, - latents, - ) - - num_channels_latents_sd1_5 = self.unet_sd1_5.config.in_channels - latents_sd1_5 = self.prepare_latents_sd1_5( - batch_size * num_images_per_prompt, - num_channels_latents_sd1_5, - height_sd1_5, - width_sd1_5, - prompt_embeds_sd1_5.dtype, - device, - generator, - latents_sd1_5, - ) - - # 6. Prepare extra step kwargs. - extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) - - # 7. Prepare added time ids & embeddings - add_text_embeds = pooled_prompt_embeds - add_time_ids = self._get_add_time_ids( - original_size, crops_coords_top_left, target_size, dtype=prompt_embeds.dtype - ) - - if do_classifier_free_guidance: - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) - add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) - add_time_ids = torch.cat([add_time_ids, add_time_ids], dim=0) - - prompt_embeds = prompt_embeds.to(device) - add_text_embeds = add_text_embeds.to(device) - add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) - - # 8. Denoising loop - num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) - - # 7.1 Apply denoising_end - if denoising_end is not None and type(denoising_end) == float and denoising_end > 0 and denoising_end < 1: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_end * self.scheduler.config.num_train_timesteps) - ) - ) - num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) - timesteps = timesteps[:num_inference_steps] - - controlnet_keep = [] - for i in range(len(timesteps_sd1_5)): - keeps = [ - 1.0 - float(i / len(timesteps_sd1_5) < s or (i + 1) / len(timesteps_sd1_5) > e) - for s, e in zip(control_guidance_start, control_guidance_end) - ] - controlnet_keep.append(keeps[0] if isinstance(controlnet, ControlNetModel) else keeps) - - latents_sd1_5_prior = latents_sd1_5.clone() - - with self.progress_bar(total=num_inference_steps_sd1_5) as progress_bar: - for i, t in enumerate(timesteps_sd1_5): - #################### SD1.5 forward #################### - t_sd1_5 = timesteps_sd1_5[i] - - latent_model_input = torch.cat([latents_sd1_5_prior] * 2) if do_classifier_free_guidance else latents_sd1_5_prior - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - # Controlnet inference - if guess_mode and do_classifier_free_guidance: - # Infer ControlNet only for the conditional batch. - control_model_input = latents_sd1_5_prior - control_model_input = self.scheduler_sd1_5.scale_model_input(control_model_input, t_sd1_5) - controlnet_prompt_embeds = prompt_embeds_sd1_5.chunk(2)[1] - else: - control_model_input = latent_model_input - controlnet_prompt_embeds = prompt_embeds_sd1_5 - - if isinstance(controlnet_keep[i], list): - cond_scale = [c * s for c, s in zip(controlnet_conditioning_scale, controlnet_keep[i])] - else: - controlnet_cond_scale = controlnet_conditioning_scale - if isinstance(controlnet_cond_scale, list): - controlnet_cond_scale = controlnet_cond_scale[0] - cond_scale = controlnet_cond_scale * controlnet_keep[i] - - down_block_res_samples, mid_block_res_sample = self.controlnet( - control_model_input, - t_sd1_5, - encoder_hidden_states=controlnet_prompt_embeds, - controlnet_cond=image, - conditioning_scale=cond_scale, - guess_mode=guess_mode, - return_dict=False, - ) - - if guess_mode and do_classifier_free_guidance: - # Infered ControlNet only for the conditional batch. - # To apply the output of ControlNet to both the unconditional and conditional batches, - # add 0 to the unconditional batch to keep it unchanged. - down_block_res_samples = [torch.cat([torch.zeros_like(d), d]) for d in down_block_res_samples] - mid_block_res_sample = torch.cat([torch.zeros_like(mid_block_res_sample), mid_block_res_sample]) - - # predict the noise residual - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - down_block_additional_residuals=down_block_res_samples, - mid_block_additional_residual=mid_block_res_sample, - return_hidden_states=False - ) - noise_pred = unet_output.sample - hidden_states = unet_output.hidden_states - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - latents_sd1_5_prior = self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5_prior, **extra_step_kwargs, return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - # call the callback, if provided - if i == len(timesteps_sd1_5) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler_sd1_5.order == 0): - progress_bar.update() - - - add_noise = True if denoising_start is None else False - latents = self.prepare_xl_latents_from_sd_1_5(latents_sd1_5_prior, latent_timestep, batch_size, - num_images_per_prompt, height, width, prompt_embeds.dtype, device, generator=generator, add_noise=add_noise) - latents_sd1_5 = self.sd1_5_add_noise(latents_sd1_5_prior, latent_timestep, generator, device, prompt_embeds.dtype) - - - controlnet_keep = [] - for i in range(len(timesteps)): - keeps = [ - 1.0 - float(i / len(timesteps_sd1_5) < s or (i + 1) / len(timesteps_sd1_5) > e) - for s, e in zip(control_guidance_start, control_guidance_end) - ] - controlnet_keep.append(keeps[0] if isinstance(controlnet, ControlNetModel) else keeps) - - with self.progress_bar(total=num_inference_steps) as progress_bar: - for i, t in enumerate(timesteps): - #################### SD1.5 forward #################### - t_sd1_5 = timesteps[i] - - latent_model_input = torch.cat([latents_sd1_5] * 2) if do_classifier_free_guidance else latents_sd1_5 - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - # Controlnet inference - if guess_mode and do_classifier_free_guidance: - # Infer ControlNet only for the conditional batch. - control_model_input = latents_sd1_5 - control_model_input = self.scheduler_sd1_5.scale_model_input(control_model_input, t_sd1_5) - controlnet_prompt_embeds = prompt_embeds_sd1_5.chunk(2)[1] - else: - control_model_input = latent_model_input - controlnet_prompt_embeds = prompt_embeds_sd1_5 - - if isinstance(controlnet_keep[i], list): - cond_scale = [c * s for c, s in zip(controlnet_conditioning_scale, controlnet_keep[i])] - else: - controlnet_cond_scale = controlnet_conditioning_scale - if isinstance(controlnet_cond_scale, list): - controlnet_cond_scale = controlnet_cond_scale[0] - cond_scale = controlnet_cond_scale * controlnet_keep[i] - - down_block_res_samples, mid_block_res_sample = self.controlnet( - control_model_input, - t_sd1_5, - encoder_hidden_states=controlnet_prompt_embeds, - controlnet_cond=image, - conditioning_scale=cond_scale, - guess_mode=guess_mode, - return_dict=False, - ) - - if guess_mode and do_classifier_free_guidance: - # Infered ControlNet only for the conditional batch. - # To apply the output of ControlNet to both the unconditional and conditional batches, - # add 0 to the unconditional batch to keep it unchanged. - down_block_res_samples = [torch.cat([torch.zeros_like(d), d]) for d in down_block_res_samples] - mid_block_res_sample = torch.cat([torch.zeros_like(mid_block_res_sample), mid_block_res_sample]) - - # predict the noise residual - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - down_block_additional_residuals=down_block_res_samples, - mid_block_additional_residual=mid_block_res_sample, - return_hidden_states=True, - return_encoder_feature=True - ) - noise_pred = unet_output.sample - hidden_states = unet_output.hidden_states - - # adapter forward - down_bridge_residuals = None - up_block_additional_residual = self.adapter(hidden_states) - for xx in range(len(up_block_additional_residual)): - up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - latents_sd1_5 = self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5, **extra_step_kwargs, return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - #################### Start of SDXL forward #################### - # if i >= skip_adapter_steps: - if True: - latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents - - latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) - - # predict the noise residual - added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} - # if adapter_ablation: - # noise_pred = self.unet( - # latent_model_input, - # t, - # encoder_hidden_states=prompt_embeds, - # cross_attention_kwargs=cross_attention_kwargs, - # added_cond_kwargs=added_cond_kwargs, - # return_dict=False, - # )[0] - # else: - # # noise_pred = self.unet( - # # latent_model_input, - # # t, - # # encoder_hidden_states=prompt_embeds, - # # cross_attention_kwargs=cross_attention_kwargs, - # # added_cond_kwargs=added_cond_kwargs, - # # up_block_additional_residual=up_block_additional_residual, - # # down_bridge_residuals=down_bridge_residuals, - # # return_dict=False, - # # fusion_guidance_scale=fusion_guidance_scale, - # # fusion_type=fusion_type, - # # adapter=self.adapter if fusion_type == 'SPADE' else None - # # )[0] - # noise_pred = self.unet( - # latent_model_input, - # t, - # encoder_hidden_states=prompt_embeds, - # cross_attention_kwargs=cross_attention_kwargs, - # added_cond_kwargs=added_cond_kwargs, - # up_block_additional_residual=up_block_additional_residual, - # down_bridge_residuals=down_bridge_residuals, - # return_dict=False, - # fusion_guidance_scale=fusion_guidance_scale, - # fusion_type='ADD', - # adapter=None - # )[0] - noise_pred = self.unet( - latent_model_input, - t, - encoder_hidden_states=prompt_embeds, - cross_attention_kwargs=cross_attention_kwargs, - added_cond_kwargs=added_cond_kwargs, - up_block_additional_residual=up_block_additional_residual, - down_bridge_residuals=down_bridge_residuals, - return_dict=False, - fusion_guidance_scale=fusion_guidance_scale, - fusion_type='ADD', - adapter=None - )[0] - - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # 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] - - - #################### End of SDXL forward #################### - - # 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: - callback(i, t, latents) - - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.dtype == torch.float16 and self.vae.config.force_upcast: - self.upcast_vae() - latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) - - if not output_type == "latent": - image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] - else: - image = latents - return StableDiffusionXLPipelineOutput(images=image) - - # apply watermark if available - if self.watermark is not None: - image = self.watermark.apply_watermark(image) - - image = self.image_processor.postprocess(image, output_type=output_type) - - # Offload last model to CPU - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.final_offload_hook.offload() - - if not return_dict: - return (image,) - - return StableDiffusionXLPipelineOutput(images=image) - - # Overrride to properly handle the loading and unloading of the additional text encoder. - def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Dict[str, torch.Tensor]], **kwargs): - # We could have accessed the unet config from `lora_state_dict()` too. We pass - # it here explicitly to be able to tell that it's coming from an SDXL - # pipeline. - state_dict, network_alphas = self.lora_state_dict( - pretrained_model_name_or_path_or_dict, - unet_config=self.unet.config, - **kwargs, - ) - self.load_lora_into_unet(state_dict, network_alphas=network_alphas, unet=self.unet) - - text_encoder_state_dict = {k: v for k, v in state_dict.items() if "text_encoder." in k} - if len(text_encoder_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder, - prefix="text_encoder", - lora_scale=self.lora_scale, - ) - - text_encoder_2_state_dict = {k: v for k, v in state_dict.items() if "text_encoder_2." in k} - if len(text_encoder_2_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_2_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder_2, - prefix="text_encoder_2", - lora_scale=self.lora_scale, - ) - - @classmethod - def save_lora_weights( - self, - save_directory: Union[str, os.PathLike], - unet_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_2_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - is_main_process: bool = True, - weight_name: str = None, - save_function: Callable = None, - safe_serialization: bool = True, - ): - state_dict = {} - - def pack_weights(layers, prefix): - layers_weights = layers.state_dict() if isinstance(layers, torch.nn.Module) else layers - layers_state_dict = {f"{prefix}.{module_name}": param for module_name, param in layers_weights.items()} - return layers_state_dict - - state_dict.update(pack_weights(unet_lora_layers, "unet")) - - if text_encoder_lora_layers and text_encoder_2_lora_layers: - state_dict.update(pack_weights(text_encoder_lora_layers, "text_encoder")) - state_dict.update(pack_weights(text_encoder_2_lora_layers, "text_encoder_2")) - - self.write_lora_layers( - state_dict=state_dict, - save_directory=save_directory, - is_main_process=is_main_process, - weight_name=weight_name, - save_function=save_function, - safe_serialization=safe_serialization, - ) - - def _remove_text_encoder_monkey_patch(self): - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder) - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder_2) - - def _encode_prompt_sd1_5( - self, - prompt, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt=None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - if prompt_embeds is None: - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, self.tokenizer_sd1_5) - - text_inputs = self.tokenizer_sd1_5( - prompt, - padding="max_length", - max_length=self.tokenizer_sd1_5.model_max_length, - truncation=True, - return_tensors="pt", - ) - text_input_ids = text_inputs.input_ids - untruncated_ids = self.tokenizer_sd1_5(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = self.tokenizer_sd1_5.batch_decode( - untruncated_ids[:, self.tokenizer_sd1_5.model_max_length - 1 : -1] - ) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {self.tokenizer_sd1_5.model_max_length} tokens: {removed_text}" - ) - - if hasattr(self.text_encoder_sd1_5.config, "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = text_inputs.attention_mask.to(device) - else: - attention_mask = None - - prompt_embeds = self.text_encoder_sd1_5( - text_input_ids.to(device), - attention_mask=attention_mask, - ) - prompt_embeds = prompt_embeds[0] - - if self.text_encoder_sd1_5 is not None: - prompt_embeds_dtype = self.text_encoder_sd1_5.dtype - elif self.unet_sd1_5 is not None: - prompt_embeds_dtype = self.unet_sd1_5.dtype - else: - prompt_embeds_dtype = prompt_embeds.dtype - - prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - # get unconditional embeddings for classifier free guidance - if do_classifier_free_guidance and negative_prompt_embeds is None: - uncond_tokens: List[str] - if negative_prompt is None: - uncond_tokens = [""] * batch_size - elif prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = negative_prompt - - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer_sd1_5) - - max_length = prompt_embeds.shape[1] - uncond_input = self.tokenizer_sd1_5( - uncond_tokens, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - if hasattr(self.text_encoder_sd1_5.config, "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = uncond_input.attention_mask.to(device) - else: - attention_mask = None - - negative_prompt_embeds = self.text_encoder_sd1_5( - uncond_input.input_ids.to(device), - attention_mask=attention_mask, - ) - negative_prompt_embeds = negative_prompt_embeds[0] - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - - negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - # 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 - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) - - return prompt_embeds - - def decode_latents_sd1_5(self, latents): - warnings.warn( - "The decode_latents method is deprecated and will be removed in a future version. Please" - " use VaeImageProcessor instead", - FutureWarning, - ) - latents = 1 / self.vae_sd1_5.config.scaling_factor * latents - image = self.vae_sd1_5.decode(latents, return_dict=False)[0] - image = (image / 2 + 0.5).clamp(0, 1) - # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 - image = image.cpu().permute(0, 2, 3, 1).float().numpy() - return image - - def check_inputs_sd1_5( - self, - prompt, - image, - callback_steps, - negative_prompt=None, - prompt_embeds=None, - negative_prompt_embeds=None, - controlnet_conditioning_scale=1.0, - control_guidance_start=0.0, - control_guidance_end=1.0, - ): - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - # `prompt` needs more sophisticated handling when there are multiple - # conditionings. - if isinstance(self.controlnet, MultiControlNetModel): - if isinstance(prompt, list): - logger.warning( - f"You have {len(self.controlnet.nets)} ControlNets and you have passed {len(prompt)}" - " prompts. The conditionings will be fixed across the prompts." - ) - - # Check `image` - is_compiled = hasattr(F, "scaled_dot_product_attention") and isinstance( - self.controlnet, torch._dynamo.eval_frame.OptimizedModule - ) - if ( - isinstance(self.controlnet, ControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, ControlNetModel) - ): - self.check_image(image, prompt, prompt_embeds) - elif ( - isinstance(self.controlnet, MultiControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, MultiControlNetModel) - ): - if not isinstance(image, list): - raise TypeError("For multiple controlnets: `image` must be type `list`") - - # When `image` is a nested list: - # (e.g. [[canny_image_1, pose_image_1], [canny_image_2, pose_image_2]]) - elif any(isinstance(i, list) for i in image): - raise ValueError("A single batch of multiple conditionings are supported at the moment.") - elif len(image) != len(self.controlnet.nets): - raise ValueError( - f"For multiple controlnets: `image` must have the same length as the number of controlnets, but got {len(image)} images and {len(self.controlnet.nets)} ControlNets." - ) - - for image_ in image: - self.check_image(image_, prompt, prompt_embeds) - else: - assert False - - # Check `controlnet_conditioning_scale` - if ( - isinstance(self.controlnet, ControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, ControlNetModel) - ): - if not isinstance(controlnet_conditioning_scale, float): - raise TypeError("For single controlnet: `controlnet_conditioning_scale` must be type `float`.") - elif ( - isinstance(self.controlnet, MultiControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, MultiControlNetModel) - ): - if isinstance(controlnet_conditioning_scale, list): - if any(isinstance(i, list) for i in controlnet_conditioning_scale): - raise ValueError("A single batch of multiple conditionings are supported at the moment.") - elif isinstance(controlnet_conditioning_scale, list) and len(controlnet_conditioning_scale) != len( - self.controlnet.nets - ): - raise ValueError( - "For multiple controlnets: When `controlnet_conditioning_scale` is specified as `list`, it must have" - " the same length as the number of controlnets" - ) - else: - assert False - - if not isinstance(control_guidance_start, (tuple, list)): - control_guidance_start = [control_guidance_start] - - if not isinstance(control_guidance_end, (tuple, list)): - control_guidance_end = [control_guidance_end] - - if len(control_guidance_start) != len(control_guidance_end): - raise ValueError( - f"`control_guidance_start` has {len(control_guidance_start)} elements, but `control_guidance_end` has {len(control_guidance_end)} elements. Make sure to provide the same number of elements to each list." - ) - - if isinstance(self.controlnet, MultiControlNetModel): - if len(control_guidance_start) != len(self.controlnet.nets): - raise ValueError( - f"`control_guidance_start`: {control_guidance_start} has {len(control_guidance_start)} elements but there are {len(self.controlnet.nets)} controlnets available. Make sure to provide {len(self.controlnet.nets)}." - ) - - for start, end in zip(control_guidance_start, control_guidance_end): - if start >= end: - raise ValueError( - f"control guidance start: {start} cannot be larger or equal to control guidance end: {end}." - ) - if start < 0.0: - raise ValueError(f"control guidance start: {start} can't be smaller than 0.") - if end > 1.0: - raise ValueError(f"control guidance end: {end} can't be larger than 1.0.") - - def prepare_latents_sd1_5(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - shape = (batch_size, num_channels_latents, height // self.vae_scale_factor_sd1_5, width // self.vae_scale_factor_sd1_5) - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - if latents is None: - latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - else: - latents = latents.to(device) - - # scale the initial noise by the standard deviation required by the scheduler - latents = latents * self.scheduler_sd1_5.init_noise_sigma - return latents - - def prepare_image( - self, - image, - width, - height, - batch_size, - num_images_per_prompt, - device, - dtype, - do_classifier_free_guidance=False, - guess_mode=False, - ): - image = self.control_image_processor.preprocess(image, height=height, width=width).to(dtype=torch.float32) - image_batch_size = image.shape[0] - - if image_batch_size == 1: - repeat_by = batch_size - else: - # image batch size is the same as prompt batch size - repeat_by = num_images_per_prompt - - image = image.repeat_interleave(repeat_by, dim=0) - - image = image.to(device=device, dtype=dtype) - - if do_classifier_free_guidance and not guess_mode: - image = torch.cat([image] * 2) - - return image - - def check_image(self, image, prompt, prompt_embeds): - image_is_pil = isinstance(image, PIL.Image.Image) - image_is_tensor = isinstance(image, torch.Tensor) - image_is_np = isinstance(image, np.ndarray) - image_is_pil_list = isinstance(image, list) and isinstance(image[0], PIL.Image.Image) - image_is_tensor_list = isinstance(image, list) and isinstance(image[0], torch.Tensor) - image_is_np_list = isinstance(image, list) and isinstance(image[0], np.ndarray) - - if ( - not image_is_pil - and not image_is_tensor - and not image_is_np - and not image_is_pil_list - and not image_is_tensor_list - and not image_is_np_list - ): - raise TypeError( - f"image must be passed and be one of PIL image, numpy array, torch tensor, list of PIL images, list of numpy arrays or list of torch tensors, but is {type(image)}" - ) - - if image_is_pil: - image_batch_size = 1 - else: - image_batch_size = len(image) - - if prompt is not None and isinstance(prompt, str): - prompt_batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - prompt_batch_size = len(prompt) - elif prompt_embeds is not None: - prompt_batch_size = prompt_embeds.shape[0] - - if image_batch_size != 1 and image_batch_size != prompt_batch_size: - raise ValueError( - f"If image batch size is not 1, image batch size must be same as prompt batch size. image batch size: {image_batch_size}, prompt batch size: {prompt_batch_size}" - ) - - def prepare_xl_latents_from_sd_1_5( - self, latent, timestep, batch_size, num_images_per_prompt, height, width, dtype, device, generator=None, add_noise=True - ): - # sd1.5 latent -> img - image = self.vae_sd1_5.decode(latent / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - image = image.resize((height, width)) - - if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): - raise ValueError( - f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" - ) - - # Offload text encoder if `enable_model_cpu_offload` was enabled - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.text_encoder_2.to("cpu") - torch.cuda.empty_cache() - - image = self.image_processor.preprocess(image) - - image = image.to(device=device, dtype=dtype) - - batch_size = batch_size * num_images_per_prompt - - if image.shape[1] == 4: - init_latents = image - - else: - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.config.force_upcast: - image = image.float() - self.vae.to(dtype=torch.float32) - - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - elif isinstance(generator, list): - init_latents = [ - self.vae.encode(image[i: i + 1]).latent_dist.sample(generator[i]) for i in range(batch_size) - ] - init_latents = torch.cat(init_latents, dim=0) - else: - init_latents = self.vae.encode(image).latent_dist.sample(generator) - - if self.vae.config.force_upcast: - self.vae.to(dtype) - - init_latents = init_latents.to(dtype) - init_latents = self.vae.config.scaling_factor * init_latents - - if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: - # expand init_latents for batch_size - additional_image_per_prompt = batch_size // init_latents.shape[0] - init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) - elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: - raise ValueError( - f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." - ) - else: - init_latents = torch.cat([init_latents], dim=0) - - if add_noise: - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - latents = init_latents - - return latents - - def get_timesteps(self, num_inference_steps, strength, device, denoising_start=None): - # get the original timestep using init_timestep - if denoising_start is None: - init_timestep = min(int(num_inference_steps * strength), num_inference_steps) - t_start = max(num_inference_steps - init_timestep, 0) - else: - t_start = 0 - - timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] - - # Strength is irrelevant if we directly request a timestep to start at; - # that is, strength is determined by the denoising_start instead. - if denoising_start is not None: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_start * self.scheduler.config.num_train_timesteps) - ) - ) - timesteps = list(filter(lambda ts: ts < discrete_timestep_cutoff, timesteps)) - return torch.tensor(timesteps), len(timesteps) - - return timesteps, num_inference_steps - t_start - - def sd1_5_add_noise(self, init_latents, timestep, generator, device, dtype): - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - return init_latents diff --git a/scripts/xadapter/pipeline_sd_xl_adapter_controlnet_img2img.py b/scripts/xadapter/pipeline_sd_xl_adapter_controlnet_img2img.py deleted file mode 100644 index 932ef5f1a..000000000 --- a/scripts/xadapter/pipeline_sd_xl_adapter_controlnet_img2img.py +++ /dev/null @@ -1,1912 +0,0 @@ -# Copyright 2023 The HuggingFace Team. All rights reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -import inspect -import os -from typing import Any, Callable, Dict, List, Optional, Tuple, Union -import warnings -import deprecate - -import torch -import PIL -import numpy as np -import torch.nn.functional as F -from transformers import CLIPTextModel, CLIPTextModelWithProjection, CLIPTokenizer - -from diffusers.image_processor import VaeImageProcessor -from diffusers.loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoaderMixin -# from diffusers.models import AutoencoderKL, UNet2DConditionModel -from diffusers.models import AutoencoderKL, ControlNetModel - -from diffusers.models.attention_processor import ( - AttnProcessor2_0, - FusedAttnProcessor2_0, - XFormersAttnProcessor, -) -from diffusers.schedulers import KarrasDiffusionSchedulers -from diffusers.utils import ( - is_accelerate_available, - is_accelerate_version, - is_invisible_watermark_available, - logging, - replace_example_docstring, -) -from diffusers.utils.torch_utils import randn_tensor -from diffusers.pipelines.pipeline_utils import DiffusionPipeline -from diffusers.pipelines.stable_diffusion_xl import StableDiffusionXLPipelineOutput -from diffusers.pipelines.controlnet.multicontrolnet import MultiControlNetModel -from modules.xadapter.adapter import Adapter_XL -from modules.xadapter.unet_adapter import UNet2DConditionModel - -if is_invisible_watermark_available(): - from diffusers.pipelines.stable_diffusion_xl.watermark import StableDiffusionXLWatermarker - -logger = logging.get_logger(__name__) # pylint: disable=invalid-name - -EXAMPLE_DOC_STRING = """ - Examples: - ```py - >>> import torch - >>> from diffusers import StableDiffusionXLPipeline - - >>> pipe = StableDiffusionXLPipeline.from_pretrained( - ... "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 - ... ) - >>> pipe = pipe.to("cuda") - - >>> prompt = "a photo of an astronaut riding a horse on mars" - >>> image = pipe(prompt).images[0] - ``` -""" - - -# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg -def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): - """ - Rescale `noise_cfg` according to `guidance_rescale`. Based on findings of [Common Diffusion Noise Schedules and - Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). See Section 3.4 - """ - std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) - std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) - # rescale the results from guidance (fixes overexposure) - noise_pred_rescaled = noise_cfg * (std_text / std_cfg) - # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images - noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg - return noise_cfg - - -class StableDiffusionXLAdapterControlnetI2IPipeline(DiffusionPipeline, FromSingleFileMixin, LoraLoaderMixin): - r""" - Pipeline for text-to-image generation using Stable Diffusion XL. - - This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the - library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) - - In addition the pipeline inherits the following loading methods: - - *LoRA*: [`StableDiffusionXLPipeline.load_lora_weights`] - - *Ckpt*: [`loaders.FromSingleFileMixin.from_single_file`] - - as well as the following saving methods: - - *LoRA*: [`loaders.StableDiffusionXLPipeline.save_lora_weights`] - - Args: - vae ([`AutoencoderKL`]): - Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. - text_encoder ([`CLIPTextModel`]): - Frozen text-encoder. Stable Diffusion XL uses the text portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically - the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. - text_encoder_2 ([` CLIPTextModelWithProjection`]): - Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of - [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), - specifically the - [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) - variant. - tokenizer (`CLIPTokenizer`): - Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - tokenizer_2 (`CLIPTokenizer`): - Second Tokenizer of class - [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). - unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. - scheduler ([`SchedulerMixin`]): - A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of - [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. - """ - - def __init__( - self, - vae: AutoencoderKL, - text_encoder: CLIPTextModel, - text_encoder_2: CLIPTextModelWithProjection, - tokenizer: CLIPTokenizer, - tokenizer_2: CLIPTokenizer, - unet: UNet2DConditionModel, - scheduler: KarrasDiffusionSchedulers, - vae_sd1_5: AutoencoderKL, - text_encoder_sd1_5: CLIPTextModel, - tokenizer_sd1_5: CLIPTokenizer, - unet_sd1_5: UNet2DConditionModel, - scheduler_sd1_5: KarrasDiffusionSchedulers, - adapter: Adapter_XL, - controlnet: ControlNetModel, - force_zeros_for_empty_prompt: bool = True, - add_watermarker: Optional[bool] = None, - ): - super().__init__() - - self.register_modules( - vae=vae, - text_encoder=text_encoder, - text_encoder_2=text_encoder_2, - tokenizer=tokenizer, - tokenizer_2=tokenizer_2, - unet=unet, - scheduler=scheduler, - vae_sd1_5=vae_sd1_5, - text_encoder_sd1_5=text_encoder_sd1_5, - tokenizer_sd1_5=tokenizer_sd1_5, - unet_sd1_5=unet_sd1_5, - scheduler_sd1_5=scheduler_sd1_5, - adapter=adapter, - controlnet=controlnet - ) - self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) - self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) - self.vae_scale_factor_sd1_5 = 2 ** (len(self.vae_sd1_5.config.block_out_channels) - 1) - self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) - self.default_sample_size = self.unet.config.sample_size - self.control_image_processor = VaeImageProcessor( - vae_scale_factor=self.vae_scale_factor_sd1_5, do_convert_rgb=True, do_normalize=False - ) - self.image_processor_sd1_5 = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor_sd1_5) - - add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() - - if add_watermarker: - self.watermark = StableDiffusionXLWatermarker() - else: - self.watermark = None - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_slicing - def enable_vae_slicing(self): - r""" - Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to - compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. - """ - self.vae.enable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_slicing - def disable_vae_slicing(self): - r""" - Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_slicing() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_tiling - def enable_vae_tiling(self): - r""" - Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to - compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow - processing larger images. - """ - self.vae.enable_tiling() - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_tiling - def disable_vae_tiling(self): - r""" - Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to - computing decoding in one step. - """ - self.vae.disable_tiling() - - def enable_model_cpu_offload(self, gpu_id=0): - r""" - Offloads all models to CPU using accelerate, reducing memory usage with a low impact on performance. Compared - to `enable_sequential_cpu_offload`, this method moves one whole model at a time to the GPU when its `forward` - method is called, and the model remains in GPU until the next model runs. Memory savings are lower than with - `enable_sequential_cpu_offload`, but performance is much better due to the iterative execution of the `unet`. - """ - if is_accelerate_available() and is_accelerate_version(">=", "0.17.0.dev0"): - from accelerate import cpu_offload_with_hook - else: - raise ImportError("`enable_model_cpu_offload` requires `accelerate v0.17.0` or higher.") - - device = torch.device(f"cuda:{gpu_id}") - - if device.type != "cpu": - self.to("cpu", silence_dtype_warnings=True) - torch.cuda.empty_cache() # otherwise we don't see the memory savings (but they probably exist) - - model_sequence = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - model_sequence.extend([self.unet, self.vae]) - - model_sequence.extend([self.unet_sd1_5, self.vae_sd1_5, self.text_encoder_sd1_5]) - model_sequence.extend([self.controlnet, self.adapter]) - - hook = None - for cpu_offloaded_model in model_sequence: - _, hook = cpu_offload_with_hook(cpu_offloaded_model, device, prev_module_hook=hook) - - # We'll offload the last model manually. - self.final_offload_hook = hook - - def encode_prompt( - self, - prompt: str, - prompt_2: Optional[str] = None, - device: Optional[torch.device] = None, - num_images_per_prompt: int = 1, - do_classifier_free_guidance: bool = True, - negative_prompt: Optional[str] = None, - negative_prompt_2: Optional[str] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - device = device or self._execution_device - - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - # Define tokenizers and text encoders - tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] - text_encoders = ( - [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] - ) - - if prompt_embeds is None: - prompt_2 = prompt_2 or prompt - # textual inversion: procecss multi-vector tokens if necessary - prompt_embeds_list = [] - prompts = [prompt, prompt_2] - for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, tokenizer) - - text_inputs = tokenizer( - prompt, - padding="max_length", - max_length=tokenizer.model_max_length, - truncation=True, - return_tensors="pt", - ) - - text_input_ids = text_inputs.input_ids - untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1: -1]) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {tokenizer.model_max_length} tokens: {removed_text}" - ) - - prompt_embeds = text_encoder( - text_input_ids.to(device), - output_hidden_states=True, - ) - - # We are only ALWAYS interested in the pooled output of the final text encoder - pooled_prompt_embeds = prompt_embeds[0] - prompt_embeds = prompt_embeds.hidden_states[-2] - - prompt_embeds_list.append(prompt_embeds) - - prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) - - # get unconditional embeddings for classifier free guidance - zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt - if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: - negative_prompt_embeds = torch.zeros_like(prompt_embeds) - negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) - elif do_classifier_free_guidance and negative_prompt_embeds is None: - negative_prompt = negative_prompt or "" - negative_prompt_2 = negative_prompt_2 or negative_prompt - - uncond_tokens: List[str] - if prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt, negative_prompt_2] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = [negative_prompt, negative_prompt_2] - - negative_prompt_embeds_list = [] - for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): - if isinstance(self, TextualInversionLoaderMixin): - negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) - - max_length = prompt_embeds.shape[1] - uncond_input = tokenizer( - negative_prompt, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - negative_prompt_embeds = text_encoder( - uncond_input.input_ids.to(device), - output_hidden_states=True, - ) - # We are only ALWAYS interested in the pooled output of the final text encoder - negative_pooled_prompt_embeds = negative_prompt_embeds[0] - negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] - - negative_prompt_embeds_list.append(negative_prompt_embeds) - - negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) - - prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - if do_classifier_free_guidance: - negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( - bs_embed * num_images_per_prompt, -1 - ) - - return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs - def prepare_extra_step_kwargs(self, generator, eta): - # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature - # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. - # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502 - # and should be between [0, 1] - - accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) - extra_step_kwargs = {} - if accepts_eta: - extra_step_kwargs["eta"] = eta - - # check if the scheduler accepts generator - accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) - if accepts_generator: - extra_step_kwargs["generator"] = generator - return extra_step_kwargs - - def check_inputs( - self, - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt=None, - negative_prompt_2=None, - prompt_embeds=None, - negative_prompt_embeds=None, - pooled_prompt_embeds=None, - negative_pooled_prompt_embeds=None, - ): - if height % 8 != 0 or width % 8 != 0: - raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") - - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt_2 is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): - raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - elif negative_prompt_2 is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - if prompt_embeds is not None and pooled_prompt_embeds is None: - raise ValueError( - "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." - ) - - if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: - raise ValueError( - "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." - ) - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents - def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - shape = (batch_size, num_channels_latents, height // self.vae_scale_factor, width // self.vae_scale_factor) - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - if latents is None: - latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - else: - latents = latents.to(device) - - # scale the initial noise by the standard deviation required by the scheduler - latents = latents * self.scheduler.init_noise_sigma - return latents - - def _get_add_time_ids(self, original_size, crops_coords_top_left, target_size, dtype): - add_time_ids = list(original_size + crops_coords_top_left + target_size) - - passed_add_embed_dim = ( - self.unet.config.addition_time_embed_dim * len(add_time_ids) + self.text_encoder_2.config.projection_dim - ) - expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features - - if expected_add_embed_dim != passed_add_embed_dim: - raise ValueError( - f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." - ) - - add_time_ids = torch.tensor([add_time_ids], dtype=dtype) - return add_time_ids - - # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae - def upcast_vae(self): - dtype = self.vae.dtype - self.vae.to(dtype=torch.float32) - use_torch_2_0_or_xformers = isinstance( - self.vae.decoder.mid_block.attentions[0].processor, - ( - AttnProcessor2_0, - XFormersAttnProcessor, - FusedAttnProcessor2_0, - ), - ) - # if xformers or torch_2_0 is used attention block does not need - # to be in float32 which can save lots of memory - if use_torch_2_0_or_xformers: - self.vae.post_quant_conv.to(dtype) - self.vae.decoder.conv_in.to(dtype) - self.vae.decoder.mid_block.to(dtype) - - @torch.no_grad() - @replace_example_docstring(EXAMPLE_DOC_STRING) - def __call__( - self, - prompt: Union[str, List[str]] = None, - prompt_2: Optional[Union[str, List[str]]] = None, - prompt_sd1_5: Optional[Union[str, List[str]]] = None, - height: Optional[int] = None, - width: Optional[int] = None, - height_sd1_5: Optional[int] = None, - width_sd1_5: Optional[int] = None, - image: Union[ - torch.FloatTensor, - PIL.Image.Image, - np.ndarray, - List[torch.FloatTensor], - List[PIL.Image.Image], - List[np.ndarray], - ] = None, - source_img: Union[ - torch.FloatTensor, - PIL.Image.Image, - np.ndarray, - List[torch.FloatTensor], - List[PIL.Image.Image], - List[np.ndarray], - ] = None, - num_inference_steps: int = 50, - denoising_end: Optional[float] = None, - guidance_scale: float = 5.0, - negative_prompt: Optional[Union[str, List[str]]] = None, - negative_prompt_2: 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.FloatTensor] = None, - latents_sd1_5: Optional[torch.FloatTensor] = None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, - output_type: Optional[str] = "pil", - return_dict: bool = True, - callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, - callback_steps: int = 1, - cross_attention_kwargs: Optional[Dict[str, Any]] = None, - guidance_rescale: float = 0.0, - original_size: Optional[Tuple[int, int]] = None, - crops_coords_top_left: Tuple[int, int] = (0, 0), - target_size: Optional[Tuple[int, int]] = None, - controlnet_conditioning_scale: Union[float, List[float]] = 1.0, - adapter_condition_scale: Optional[float] = 1.0, - guess_mode: bool = False, - control_guidance_start: Union[float, List[float]] = 0.0, - control_guidance_end: Union[float, List[float]] = 1.0, - adapter_guidance_start: Union[float, List[float]] = 0.5, - denoising_start: Optional[float] = None, - adapter_type: str = "de", # "de", "en", "en_de" - fusion_guidance_scale: Optional[float] = None, - enable_time_step: bool = False, - fusion_type: Optional[str] = 'ADD', - ): - r""" - Function invoked when calling the pipeline for generation. - - Args: - prompt (`str` or `List[str]`, *optional*): - The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. - instead. - prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is - used in both text-encoders - 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. - 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. - denoising_end (`float`, *optional*): - When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be - completed before it is intentionally prematurely terminated. As a result, the returned sample will - still retain a substantial amount of noise as determined by the discrete timesteps selected by the - scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a - "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image - Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - guidance_scale (`float`, *optional*, defaults to 5.0): - Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). - `guidance_scale` is defined as `w` of equation 2. of [Imagen - Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > - 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, - usually at the expense of lower image quality. - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - negative_prompt_2 (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and - `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - 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) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to - [`schedulers.DDIMScheduler`], will be ignored for others. - generator (`torch.Generator` or `List[torch.Generator]`, *optional*): - One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) - to make generation deterministic. - latents (`torch.FloatTensor`, *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 will ge generated by sampling using the supplied random `generator`. - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. - If not provided, pooled text embeddings will be generated from `prompt` input argument. - negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` - input argument. - output_type (`str`, *optional*, defaults to `"pil"`): - The output format of the generate image. Choose between - [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - return_dict (`bool`, *optional*, defaults to `True`): - Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead - of a plain tuple. - callback (`Callable`, *optional*): - A function that will be called every `callback_steps` steps during inference. The function will be - called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. - callback_steps (`int`, *optional*, defaults to 1): - The frequency at which the `callback` function will be called. If not specified, the callback will be - called at every step. - cross_attention_kwargs (`dict`, *optional*): - A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under - `self.processor` in - [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - guidance_rescale (`float`, *optional*, defaults to 0.7): - Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are - Flawed](https://arxiv.org/pdf/2305.08891.pdf) `guidance_scale` is defined as `φ` in equation 16. of - [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). - Guidance rescale factor should fix overexposure when using zero terminal SNR. - original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. - `original_size` defaults to `(width, height)` if not specified. Part of SDXL's micro-conditioning as - explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): - `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position - `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting - `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of - [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): - For most cases, `target_size` should be set to the desired height and width of the generated image. If - not specified it will default to `(width, height)`. Part of SDXL's micro-conditioning as explained in - section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - - Examples: - - Returns: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: - [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a - `tuple`. When returning a tuple, the first element is a list with the generated images. - """ - # 0. Default height and width to unet - - controlnet = self.controlnet - - skip_adapter_steps = int(adapter_guidance_start * num_inference_steps) - - # align format for control guidance - if not isinstance(control_guidance_start, list) and isinstance(control_guidance_end, list): - control_guidance_start = len(control_guidance_end) * [control_guidance_start] - elif not isinstance(control_guidance_end, list) and isinstance(control_guidance_start, list): - control_guidance_end = len(control_guidance_start) * [control_guidance_end] - elif not isinstance(control_guidance_start, list) and not isinstance(control_guidance_end, list): - mult = len(controlnet.nets) if isinstance(controlnet, MultiControlNetModel) else 1 - control_guidance_start, control_guidance_end = mult * [control_guidance_start], mult * [ - control_guidance_end - ] - - height = height or self.default_sample_size * self.vae_scale_factor - width = width or self.default_sample_size * self.vae_scale_factor - - height_sd1_5 = height_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - width_sd1_5 = width_sd1_5 or self.default_sample_size_sd1_5 * self.vae_scale_factor_sd1_5 - - original_size = original_size or (height, width) - target_size = target_size or (height, width) - - # 1. Check inputs. Raise error if not correct - self.check_inputs( - prompt, - prompt_2, - height, - width, - callback_steps, - negative_prompt, - negative_prompt_2, - prompt_embeds, - negative_prompt_embeds, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) - - self.check_inputs_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, - image, - callback_steps, - negative_prompt, - prompt_embeds, - negative_prompt_embeds, - controlnet_conditioning_scale, - control_guidance_start, - control_guidance_end, - ) - - # 2. Define call parameters - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - device = torch.device('cuda') - - if isinstance(controlnet, MultiControlNetModel) and isinstance(controlnet_conditioning_scale, float): - controlnet_conditioning_scale = [controlnet_conditioning_scale] * len(controlnet.nets) - - global_pool_conditions = ( - controlnet.config.global_pool_conditions - if isinstance(controlnet, ControlNetModel) - else controlnet.nets[0].config.global_pool_conditions - ) - guess_mode = guess_mode or global_pool_conditions - - # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) - # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1` - # corresponds to doing no classifier free guidance. - do_classifier_free_guidance = guidance_scale > 1.0 - - # prepare controlnet image - if isinstance(controlnet, ControlNetModel): - image = self.prepare_image( - image=image, - width=width_sd1_5, - height=height_sd1_5, - batch_size=batch_size * num_images_per_prompt, - num_images_per_prompt=num_images_per_prompt, - device=device, - dtype=controlnet.dtype, - do_classifier_free_guidance=do_classifier_free_guidance, - guess_mode=guess_mode, - ) - height_sd1_5, width_sd1_5 = image.shape[-2:] - elif isinstance(controlnet, MultiControlNetModel): - images = [] - - for image_ in image: - image_ = self.prepare_image( - image=image_, - width=width_sd1_5, - height=height_sd1_5, - batch_size=batch_size * num_images_per_prompt, - num_images_per_prompt=num_images_per_prompt, - device=device, - dtype=controlnet.dtype, - do_classifier_free_guidance=do_classifier_free_guidance, - guess_mode=guess_mode, - ) - - images.append(image_) - - image = images - height_sd1_5, width_sd1_5 = image[0].shape[-2:] - else: - assert False - - # 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, - pooled_prompt_embeds, - negative_pooled_prompt_embeds, - ) = self.encode_prompt( - prompt=prompt, - prompt_2=prompt_2, - device=device, - num_images_per_prompt=num_images_per_prompt, - do_classifier_free_guidance=do_classifier_free_guidance, - negative_prompt=negative_prompt, - negative_prompt_2=negative_prompt_2, - prompt_embeds=prompt_embeds, - negative_prompt_embeds=negative_prompt_embeds, - pooled_prompt_embeds=pooled_prompt_embeds, - negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, - lora_scale=text_encoder_lora_scale, - ) - - prompt_embeds_sd1_5 = self._encode_prompt_sd1_5( - prompt if prompt_sd1_5 is None else prompt_sd1_5, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt, - prompt_embeds=None, - negative_prompt_embeds=None, - lora_scale=text_encoder_lora_scale, - ) - # todo: implement prompt_embeds for SD1.5 - - # 4. Prepare timesteps - self.scheduler_sd1_5.set_timesteps(num_inference_steps, device=device) - timesteps_sd1_5 = self.scheduler_sd1_5.timesteps - num_inference_steps_sd1_5 = num_inference_steps - latent_timestep_sd1_5 = timesteps_sd1_5[:1].repeat(batch_size * num_images_per_prompt) - - self.scheduler.set_timesteps(num_inference_steps, device=device) - - timesteps, num_inference_steps = self.get_timesteps( - num_inference_steps, adapter_guidance_start, device, denoising_start=denoising_start - ) - latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) - - # 4.1 prepare image - source_img = self.image_processor_sd1_5.preprocess(source_img).to(dtype=torch.float32) - - # 5. Prepare latent variables - # if skip_adapter_steps <= 0: - num_channels_latents = self.unet.config.in_channels - latents = self.prepare_latents( - batch_size * num_images_per_prompt, - num_channels_latents, - height, - width, - prompt_embeds.dtype, - device, - generator, - latents, - ) - - num_channels_latents_sd1_5 = self.unet_sd1_5.config.in_channels - - latents_sd1_5 = self.prepare_latents_sd1_5( - source_img, - latent_timestep_sd1_5, - batch_size, - num_images_per_prompt, - prompt_embeds_sd1_5.dtype, - device, - generator, - ) - - # 6. Prepare extra step kwargs. - extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) - - # 7. Prepare added time ids & embeddings - add_text_embeds = pooled_prompt_embeds - add_time_ids = self._get_add_time_ids( - original_size, crops_coords_top_left, target_size, dtype=prompt_embeds.dtype - ) - - if do_classifier_free_guidance: - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) - add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) - add_time_ids = torch.cat([add_time_ids, add_time_ids], dim=0) - - prompt_embeds = prompt_embeds.to(device) - add_text_embeds = add_text_embeds.to(device) - add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) - - # 8. Denoising loop - num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) - - # 7.1 Apply denoising_end - if denoising_end is not None and type(denoising_end) == float and denoising_end > 0 and denoising_end < 1: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_end * self.scheduler.config.num_train_timesteps) - ) - ) - num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) - timesteps = timesteps[:num_inference_steps] - - controlnet_keep = [] - for i in range(len(timesteps_sd1_5)): - keeps = [ - 1.0 - float(i / len(timesteps_sd1_5) < s or (i + 1) / len(timesteps_sd1_5) > e) - for s, e in zip(control_guidance_start, control_guidance_end) - ] - controlnet_keep.append(keeps[0] if isinstance(controlnet, ControlNetModel) else keeps) - - latents_sd1_5_prior = latents_sd1_5.clone() - - with self.progress_bar(total=num_inference_steps_sd1_5) as progress_bar: - for i, t in enumerate(timesteps_sd1_5): - # expand the latents if we are doing classifier free guidance - - #################### SD1.5 forward #################### - # t_sd1_5 = timesteps[i] - t_sd1_5 = timesteps_sd1_5[i] - - latent_model_input = torch.cat( - [latents_sd1_5_prior] * 2) if do_classifier_free_guidance else latents_sd1_5_prior - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - # Controlnet inference - if guess_mode and do_classifier_free_guidance: - # Infer ControlNet only for the conditional batch. - control_model_input = latents_sd1_5_prior - control_model_input = self.scheduler_sd1_5.scale_model_input(control_model_input, t_sd1_5) - controlnet_prompt_embeds = prompt_embeds_sd1_5.chunk(2)[1] - else: - control_model_input = latent_model_input - controlnet_prompt_embeds = prompt_embeds_sd1_5 - - if isinstance(controlnet_keep[i], list): - cond_scale = [c * s for c, s in zip(controlnet_conditioning_scale, controlnet_keep[i])] - else: - controlnet_cond_scale = controlnet_conditioning_scale - if isinstance(controlnet_cond_scale, list): - controlnet_cond_scale = controlnet_cond_scale[0] - cond_scale = controlnet_cond_scale * controlnet_keep[i] - - down_block_res_samples, mid_block_res_sample = self.controlnet( - control_model_input, - t_sd1_5, - encoder_hidden_states=controlnet_prompt_embeds, - controlnet_cond=image, - conditioning_scale=cond_scale, - guess_mode=guess_mode, - return_dict=False, - ) - - if guess_mode and do_classifier_free_guidance: - # Infered ControlNet only for the conditional batch. - # To apply the output of ControlNet to both the unconditional and conditional batches, - # add 0 to the unconditional batch to keep it unchanged. - down_block_res_samples = [torch.cat([torch.zeros_like(d), d]) for d in down_block_res_samples] - mid_block_res_sample = torch.cat([torch.zeros_like(mid_block_res_sample), mid_block_res_sample]) - - # predict the noise residual - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - down_block_additional_residuals=down_block_res_samples, - mid_block_additional_residual=mid_block_res_sample, - return_hidden_states=False - ) - noise_pred = unet_output.sample - hidden_states = unet_output.hidden_states - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - latents_sd1_5_prior = \ - self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5_prior, **extra_step_kwargs, - return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - # call the callback, if provided - if i == len(timesteps_sd1_5) - 1 or ( - (i + 1) > num_warmup_steps and (i + 1) % self.scheduler_sd1_5.order == 0): - progress_bar.update() - - - add_noise = True if denoising_start is None else False - latents = self.prepare_xl_latents_from_sd_1_5(latents_sd1_5_prior, latent_timestep, batch_size, - num_images_per_prompt, height, width, prompt_embeds.dtype, device, - generator=generator, add_noise=add_noise) - latents_sd1_5 = self.sd1_5_add_noise(latents_sd1_5_prior, latent_timestep, generator, device, - prompt_embeds.dtype) - - - controlnet_keep = [] - for i in range(len(timesteps)): - keeps = [ - 1.0 - float(i / len(timesteps_sd1_5) < s or (i + 1) / len(timesteps_sd1_5) > e) - for s, e in zip(control_guidance_start, control_guidance_end) - ] - controlnet_keep.append(keeps[0] if isinstance(controlnet, ControlNetModel) else keeps) - - with self.progress_bar(total=num_inference_steps) as progress_bar: - for i, t in enumerate(timesteps): - - #################### SD1.5 forward #################### - t_sd1_5 = timesteps[i] - - latent_model_input = torch.cat([latents_sd1_5] * 2) if do_classifier_free_guidance else latents_sd1_5 - latent_model_input = self.scheduler_sd1_5.scale_model_input(latent_model_input, t_sd1_5) - - # Controlnet inference - if guess_mode and do_classifier_free_guidance: - # Infer ControlNet only for the conditional batch. - control_model_input = latents_sd1_5 - control_model_input = self.scheduler_sd1_5.scale_model_input(control_model_input, t_sd1_5) - controlnet_prompt_embeds = prompt_embeds_sd1_5.chunk(2)[1] - else: - control_model_input = latent_model_input - controlnet_prompt_embeds = prompt_embeds_sd1_5 - - if isinstance(controlnet_keep[i], list): - cond_scale = [c * s for c, s in zip(controlnet_conditioning_scale, controlnet_keep[i])] - else: - controlnet_cond_scale = controlnet_conditioning_scale - if isinstance(controlnet_cond_scale, list): - controlnet_cond_scale = controlnet_cond_scale[0] - cond_scale = controlnet_cond_scale * controlnet_keep[i] - - down_block_res_samples, mid_block_res_sample = self.controlnet( - control_model_input, - t_sd1_5, - encoder_hidden_states=controlnet_prompt_embeds, - controlnet_cond=image, - conditioning_scale=cond_scale, - guess_mode=guess_mode, - return_dict=False, - ) - - if guess_mode and do_classifier_free_guidance: - # Infered ControlNet only for the conditional batch. - # To apply the output of ControlNet to both the unconditional and conditional batches, - # add 0 to the unconditional batch to keep it unchanged. - down_block_res_samples = [torch.cat([torch.zeros_like(d), d]) for d in down_block_res_samples] - mid_block_res_sample = torch.cat([torch.zeros_like(mid_block_res_sample), mid_block_res_sample]) - - # predict the noise residual - unet_output = self.unet_sd1_5( - latent_model_input, - t_sd1_5, - encoder_hidden_states=prompt_embeds_sd1_5, - cross_attention_kwargs=cross_attention_kwargs, - down_block_additional_residuals=down_block_res_samples, - mid_block_additional_residual=mid_block_res_sample, - return_hidden_states=True, - return_encoder_feature=True - ) - noise_pred = unet_output.sample - hidden_states = unet_output.hidden_states - encoder_feature = unet_output.encoder_feature - - # adapter forward - # if i >= skip_adapter_steps: - if adapter_type == "de": - down_bridge_residuals = None - # up_block_additional_residual = self.adapter(hidden_states, t=t_sd1_5 if enable_time_step else None) - # if fusion_type is not "SPADE": - # for xx in range(len(up_block_additional_residual)): - # up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - up_block_additional_residual = self.adapter(hidden_states) - for xx in range(len(up_block_additional_residual)): - up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - - elif adapter_type == "en": - up_block_additional_residual = None - down_bridge_residuals = self.adapter(encoder_feature) - for xx in range(len(down_bridge_residuals)): - down_bridge_residuals[xx] = down_bridge_residuals[xx] * adapter_condition_scale - else: - dict = self.adapter(x=hidden_states, enc_x=encoder_feature) - down_bridge_residuals = dict['encoder_features'] - up_block_additional_residual = dict['decoder_features'] - for xx in range(len(up_block_additional_residual)): - up_block_additional_residual[xx] = up_block_additional_residual[xx] * adapter_condition_scale - for xx in range(len(down_bridge_residuals)): - down_bridge_residuals[xx] = down_bridge_residuals[xx] * adapter_condition_scale - - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # compute the previous noisy sample x_t -> x_t-1 - latents_sd1_5 = \ - self.scheduler_sd1_5.step(noise_pred, t_sd1_5, latents_sd1_5, **extra_step_kwargs, return_dict=False)[0] - - #################### End of SD1.5 forward #################### - - #################### Start of SDXL forward #################### - # if i >= skip_adapter_steps: - if True: - latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents - - latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) - - # predict the noise residual - added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} - noise_pred = self.unet( - latent_model_input, - t, - encoder_hidden_states=prompt_embeds, - cross_attention_kwargs=cross_attention_kwargs, - added_cond_kwargs=added_cond_kwargs, - up_block_additional_residual=up_block_additional_residual, - down_bridge_residuals=down_bridge_residuals, - return_dict=False, - fusion_guidance_scale=fusion_guidance_scale, - fusion_type='ADD', - adapter=None - )[0] - - # perform guidance - if do_classifier_free_guidance: - noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) - noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) - - if do_classifier_free_guidance and guidance_rescale > 0.0: - # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf - noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) - - # 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] - - #################### End of SDXL forward #################### - - # 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: - callback(i, t, latents) - - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.dtype == torch.float16 and self.vae.config.force_upcast: - self.upcast_vae() - latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) - - if not output_type == "latent": - image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] - else: - image = latents - return StableDiffusionXLPipelineOutput(images=image) - - # apply watermark if available - if self.watermark is not None: - image = self.watermark.apply_watermark(image) - - image = self.image_processor.postprocess(image, output_type=output_type) - - # Offload last model to CPU - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.final_offload_hook.offload() - - if not return_dict: - return (image,) - - return StableDiffusionXLPipelineOutput(images=image) - - # Overrride to properly handle the loading and unloading of the additional text encoder. - def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Dict[str, torch.Tensor]], **kwargs): - # We could have accessed the unet config from `lora_state_dict()` too. We pass - # it here explicitly to be able to tell that it's coming from an SDXL - # pipeline. - state_dict, network_alphas = self.lora_state_dict( - pretrained_model_name_or_path_or_dict, - unet_config=self.unet.config, - **kwargs, - ) - self.load_lora_into_unet(state_dict, network_alphas=network_alphas, unet=self.unet) - - text_encoder_state_dict = {k: v for k, v in state_dict.items() if "text_encoder." in k} - if len(text_encoder_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder, - prefix="text_encoder", - lora_scale=self.lora_scale, - ) - - text_encoder_2_state_dict = {k: v for k, v in state_dict.items() if "text_encoder_2." in k} - if len(text_encoder_2_state_dict) > 0: - self.load_lora_into_text_encoder( - text_encoder_2_state_dict, - network_alphas=network_alphas, - text_encoder=self.text_encoder_2, - prefix="text_encoder_2", - lora_scale=self.lora_scale, - ) - - @classmethod - def save_lora_weights( - self, - save_directory: Union[str, os.PathLike], - unet_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - text_encoder_2_lora_layers: Dict[str, Union[torch.nn.Module, torch.Tensor]] = None, - is_main_process: bool = True, - weight_name: str = None, - save_function: Callable = None, - safe_serialization: bool = True, - ): - state_dict = {} - - def pack_weights(layers, prefix): - layers_weights = layers.state_dict() if isinstance(layers, torch.nn.Module) else layers - layers_state_dict = {f"{prefix}.{module_name}": param for module_name, param in layers_weights.items()} - return layers_state_dict - - state_dict.update(pack_weights(unet_lora_layers, "unet")) - - if text_encoder_lora_layers and text_encoder_2_lora_layers: - state_dict.update(pack_weights(text_encoder_lora_layers, "text_encoder")) - state_dict.update(pack_weights(text_encoder_2_lora_layers, "text_encoder_2")) - - self.write_lora_layers( - state_dict=state_dict, - save_directory=save_directory, - is_main_process=is_main_process, - weight_name=weight_name, - save_function=save_function, - safe_serialization=safe_serialization, - ) - - def _remove_text_encoder_monkey_patch(self): - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder) - self._remove_text_encoder_monkey_patch_classmethod(self.text_encoder_2) - - def _encode_prompt_sd1_5( - self, - prompt, - device, - num_images_per_prompt, - do_classifier_free_guidance, - negative_prompt=None, - prompt_embeds: Optional[torch.FloatTensor] = None, - negative_prompt_embeds: Optional[torch.FloatTensor] = None, - lora_scale: Optional[float] = None, - ): - r""" - Encodes the prompt into text encoder hidden states. - - Args: - prompt (`str` or `List[str]`, *optional*): - prompt to be encoded - device: (`torch.device`): - torch device - num_images_per_prompt (`int`): - number of images that should be generated per prompt - do_classifier_free_guidance (`bool`): - whether to use classifier free guidance or not - negative_prompt (`str` or `List[str]`, *optional*): - The prompt or prompts not to guide the image generation. If not defined, one has to pass - `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is - less than `1`). - prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not - provided, text embeddings will be generated from `prompt` input argument. - negative_prompt_embeds (`torch.FloatTensor`, *optional*): - Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt - weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input - argument. - lora_scale (`float`, *optional*): - A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - """ - # set lora scale so that monkey patched LoRA - # function of text encoder can correctly access it - if lora_scale is not None and isinstance(self, LoraLoaderMixin): - self._lora_scale = lora_scale - - if prompt is not None and isinstance(prompt, str): - batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - batch_size = len(prompt) - else: - batch_size = prompt_embeds.shape[0] - - if prompt_embeds is None: - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - prompt = self.maybe_convert_prompt(prompt, self.tokenizer_sd1_5) - - text_inputs = self.tokenizer_sd1_5( - prompt, - padding="max_length", - max_length=self.tokenizer_sd1_5.model_max_length, - truncation=True, - return_tensors="pt", - ) - text_input_ids = text_inputs.input_ids - untruncated_ids = self.tokenizer_sd1_5(prompt, padding="longest", return_tensors="pt").input_ids - - if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( - text_input_ids, untruncated_ids - ): - removed_text = self.tokenizer_sd1_5.batch_decode( - untruncated_ids[:, self.tokenizer_sd1_5.model_max_length - 1: -1] - ) - logger.warning( - "The following part of your input was truncated because CLIP can only handle sequences up to" - f" {self.tokenizer_sd1_5.model_max_length} tokens: {removed_text}" - ) - - if hasattr(self.text_encoder_sd1_5.config, - "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = text_inputs.attention_mask.to(device) - else: - attention_mask = None - - prompt_embeds = self.text_encoder_sd1_5( - text_input_ids.to(device), - attention_mask=attention_mask, - ) - prompt_embeds = prompt_embeds[0] - - if self.text_encoder_sd1_5 is not None: - prompt_embeds_dtype = self.text_encoder_sd1_5.dtype - elif self.unet_sd1_5 is not None: - prompt_embeds_dtype = self.unet_sd1_5.dtype - else: - prompt_embeds_dtype = prompt_embeds.dtype - - prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - bs_embed, seq_len, _ = prompt_embeds.shape - # duplicate text embeddings for each generation per prompt, using mps friendly method - prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) - prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) - - # get unconditional embeddings for classifier free guidance - if do_classifier_free_guidance and negative_prompt_embeds is None: - uncond_tokens: List[str] - if negative_prompt is None: - uncond_tokens = [""] * batch_size - elif prompt is not None and type(prompt) is not type(negative_prompt): - raise TypeError( - f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" - f" {type(prompt)}." - ) - elif isinstance(negative_prompt, str): - uncond_tokens = [negative_prompt] - elif batch_size != len(negative_prompt): - raise ValueError( - f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" - f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" - " the batch size of `prompt`." - ) - else: - uncond_tokens = negative_prompt - - # textual inversion: procecss multi-vector tokens if necessary - if isinstance(self, TextualInversionLoaderMixin): - uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer_sd1_5) - - max_length = prompt_embeds.shape[1] - uncond_input = self.tokenizer_sd1_5( - uncond_tokens, - padding="max_length", - max_length=max_length, - truncation=True, - return_tensors="pt", - ) - - if hasattr(self.text_encoder_sd1_5.config, - "use_attention_mask") and self.text_encoder_sd1_5.config.use_attention_mask: - attention_mask = uncond_input.attention_mask.to(device) - else: - attention_mask = None - - negative_prompt_embeds = self.text_encoder_sd1_5( - uncond_input.input_ids.to(device), - attention_mask=attention_mask, - ) - negative_prompt_embeds = negative_prompt_embeds[0] - - if do_classifier_free_guidance: - # duplicate unconditional embeddings for each generation per prompt, using mps friendly method - seq_len = negative_prompt_embeds.shape[1] - - negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) - - negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) - negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) - - # 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 - prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) - - return prompt_embeds - - def decode_latents_sd1_5(self, latents): - warnings.warn( - "The decode_latents method is deprecated and will be removed in a future version. Please" - " use VaeImageProcessor instead", - FutureWarning, - ) - latents = 1 / self.vae_sd1_5.config.scaling_factor * latents - image = self.vae_sd1_5.decode(latents, return_dict=False)[0] - image = (image / 2 + 0.5).clamp(0, 1) - # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 - image = image.cpu().permute(0, 2, 3, 1).float().numpy() - return image - - def check_inputs_sd1_5( - self, - prompt, - image, - callback_steps, - negative_prompt=None, - prompt_embeds=None, - negative_prompt_embeds=None, - controlnet_conditioning_scale=1.0, - control_guidance_start=0.0, - control_guidance_end=1.0, - ): - if (callback_steps is None) or ( - callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) - ): - raise ValueError( - f"`callback_steps` has to be a positive integer but is {callback_steps} of type" - f" {type(callback_steps)}." - ) - - if prompt is not None and prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" - " only forward one of the two." - ) - elif prompt is None and prompt_embeds is None: - raise ValueError( - "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." - ) - elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): - raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") - - if negative_prompt is not None and negative_prompt_embeds is not None: - raise ValueError( - f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" - f" {negative_prompt_embeds}. Please make sure to only forward one of the two." - ) - - if prompt_embeds is not None and negative_prompt_embeds is not None: - if prompt_embeds.shape != negative_prompt_embeds.shape: - raise ValueError( - "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" - f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" - f" {negative_prompt_embeds.shape}." - ) - - # `prompt` needs more sophisticated handling when there are multiple - # conditionings. - if isinstance(self.controlnet, MultiControlNetModel): - if isinstance(prompt, list): - logger.warning( - f"You have {len(self.controlnet.nets)} ControlNets and you have passed {len(prompt)}" - " prompts. The conditionings will be fixed across the prompts." - ) - - # Check `image` - is_compiled = hasattr(F, "scaled_dot_product_attention") and isinstance( - self.controlnet, torch._dynamo.eval_frame.OptimizedModule - ) - if ( - isinstance(self.controlnet, ControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, ControlNetModel) - ): - self.check_image(image, prompt, prompt_embeds) - elif ( - isinstance(self.controlnet, MultiControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, MultiControlNetModel) - ): - if not isinstance(image, list): - raise TypeError("For multiple controlnets: `image` must be type `list`") - - # When `image` is a nested list: - # (e.g. [[canny_image_1, pose_image_1], [canny_image_2, pose_image_2]]) - elif any(isinstance(i, list) for i in image): - raise ValueError("A single batch of multiple conditionings are supported at the moment.") - elif len(image) != len(self.controlnet.nets): - raise ValueError( - f"For multiple controlnets: `image` must have the same length as the number of controlnets, but got {len(image)} images and {len(self.controlnet.nets)} ControlNets." - ) - - for image_ in image: - self.check_image(image_, prompt, prompt_embeds) - else: - assert False - - # Check `controlnet_conditioning_scale` - if ( - isinstance(self.controlnet, ControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, ControlNetModel) - ): - if not isinstance(controlnet_conditioning_scale, float): - raise TypeError("For single controlnet: `controlnet_conditioning_scale` must be type `float`.") - elif ( - isinstance(self.controlnet, MultiControlNetModel) - or is_compiled - and isinstance(self.controlnet._orig_mod, MultiControlNetModel) - ): - if isinstance(controlnet_conditioning_scale, list): - if any(isinstance(i, list) for i in controlnet_conditioning_scale): - raise ValueError("A single batch of multiple conditionings are supported at the moment.") - elif isinstance(controlnet_conditioning_scale, list) and len(controlnet_conditioning_scale) != len( - self.controlnet.nets - ): - raise ValueError( - "For multiple controlnets: When `controlnet_conditioning_scale` is specified as `list`, it must have" - " the same length as the number of controlnets" - ) - else: - assert False - - if not isinstance(control_guidance_start, (tuple, list)): - control_guidance_start = [control_guidance_start] - - if not isinstance(control_guidance_end, (tuple, list)): - control_guidance_end = [control_guidance_end] - - if len(control_guidance_start) != len(control_guidance_end): - raise ValueError( - f"`control_guidance_start` has {len(control_guidance_start)} elements, but `control_guidance_end` has {len(control_guidance_end)} elements. Make sure to provide the same number of elements to each list." - ) - - if isinstance(self.controlnet, MultiControlNetModel): - if len(control_guidance_start) != len(self.controlnet.nets): - raise ValueError( - f"`control_guidance_start`: {control_guidance_start} has {len(control_guidance_start)} elements but there are {len(self.controlnet.nets)} controlnets available. Make sure to provide {len(self.controlnet.nets)}." - ) - - for start, end in zip(control_guidance_start, control_guidance_end): - if start >= end: - raise ValueError( - f"control guidance start: {start} cannot be larger or equal to control guidance end: {end}." - ) - if start < 0.0: - raise ValueError(f"control guidance start: {start} can't be smaller than 0.") - if end > 1.0: - raise ValueError(f"control guidance end: {end} can't be larger than 1.0.") - - # def prepare_latents_sd1_5(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): - # shape = (batch_size, num_channels_latents, height // self.vae_scale_factor_sd1_5, width // self.vae_scale_factor_sd1_5) - # if isinstance(generator, list) and len(generator) != batch_size: - # raise ValueError( - # f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - # f" size of {batch_size}. Make sure the batch size matches the length of the generators." - # ) - # - # if latents is None: - # latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # else: - # latents = latents.to(device) - # - # # scale the initial noise by the standard deviation required by the scheduler - # latents = latents * self.scheduler_sd1_5.init_noise_sigma - # return latents - def prepare_latents_sd1_5(self, image, timestep, batch_size, num_images_per_prompt, dtype, device, generator=None): - if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): - raise ValueError( - f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" - ) - - image = image.to(device=device, dtype=dtype) - - batch_size = batch_size * num_images_per_prompt - - if image.shape[1] == 4: - init_latents = image - - else: - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - elif isinstance(generator, list): - init_latents = [ - self.vae_sd1_5.encode(image[i : i + 1]).latent_dist.sample(generator[i]) for i in range(batch_size) - ] - init_latents = torch.cat(init_latents, dim=0) - else: - init_latents = self.vae_sd1_5.encode(image).latent_dist.sample(generator) - - init_latents = self.vae_sd1_5.config.scaling_factor * init_latents - - if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: - # expand init_latents for batch_size - deprecation_message = ( - f"You have passed {batch_size} text prompts (`prompt`), but only {init_latents.shape[0]} initial" - " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" - " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" - " your script to pass as many initial images as text prompts to suppress this warning." - ) - deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) - additional_image_per_prompt = batch_size // init_latents.shape[0] - init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) - elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: - raise ValueError( - f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." - ) - else: - init_latents = torch.cat([init_latents], dim=0) - - shape = init_latents.shape - - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - - # get latents - init_latents = self.scheduler_sd1_5.add_noise(init_latents, noise, timestep) - latents = init_latents - - return latents - - def prepare_image( - self, - image, - width, - height, - batch_size, - num_images_per_prompt, - device, - dtype, - do_classifier_free_guidance=False, - guess_mode=False, - ): - image = self.control_image_processor.preprocess(image, height=height, width=width).to(dtype=torch.float32) - image_batch_size = image.shape[0] - - if image_batch_size == 1: - repeat_by = batch_size - else: - # image batch size is the same as prompt batch size - repeat_by = num_images_per_prompt - - image = image.repeat_interleave(repeat_by, dim=0) - - image = image.to(device=device, dtype=dtype) - - if do_classifier_free_guidance and not guess_mode: - image = torch.cat([image] * 2) - - return image - - def check_image(self, image, prompt, prompt_embeds): - image_is_pil = isinstance(image, PIL.Image.Image) - image_is_tensor = isinstance(image, torch.Tensor) - image_is_np = isinstance(image, np.ndarray) - image_is_pil_list = isinstance(image, list) and isinstance(image[0], PIL.Image.Image) - image_is_tensor_list = isinstance(image, list) and isinstance(image[0], torch.Tensor) - image_is_np_list = isinstance(image, list) and isinstance(image[0], np.ndarray) - - if ( - not image_is_pil - and not image_is_tensor - and not image_is_np - and not image_is_pil_list - and not image_is_tensor_list - and not image_is_np_list - ): - raise TypeError( - f"image must be passed and be one of PIL image, numpy array, torch tensor, list of PIL images, list of numpy arrays or list of torch tensors, but is {type(image)}" - ) - - if image_is_pil: - image_batch_size = 1 - else: - image_batch_size = len(image) - - if prompt is not None and isinstance(prompt, str): - prompt_batch_size = 1 - elif prompt is not None and isinstance(prompt, list): - prompt_batch_size = len(prompt) - elif prompt_embeds is not None: - prompt_batch_size = prompt_embeds.shape[0] - - if image_batch_size != 1 and image_batch_size != prompt_batch_size: - raise ValueError( - f"If image batch size is not 1, image batch size must be same as prompt batch size. image batch size: {image_batch_size}, prompt batch size: {prompt_batch_size}" - ) - - def prepare_latents_from_noisy_latent(self, latent, device, dtype, generator, height, width, adapter_guidance_start, timesteps): - # sd1.5 noisy latent -> image - image = self.vae_sd1_5.decode(latent / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - # image = self.image_processor_sd1_5.postprocess(image, do_denormalize=do_denormalize)[0] - # image.save(f'./test_img/noisy_latent_{adapter_guidance_start:.2f}.png') - # image -> SDXL latent - image = image.resize((height, width)) - if self.vae.config.force_upcast: - image = image.float() - self.vae.to(dtype=torch.float32) - image = self.image_processor.preprocess(image) - image = image.to(device=device, dtype=dtype) - init_latents = self.vae.encode(image).latent_dist.sample() - init_latents = init_latents.to(dtype) - init_latents = self.vae.config.scaling_factor * init_latents - return init_latents - - def prepare_xl_latents_from_sd_1_5( - self, latent, timestep, batch_size, num_images_per_prompt, height, width, dtype, device, generator=None, add_noise=True - ): - # sd1.5 latent -> img - image = self.vae_sd1_5.decode(latent / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - image = image.resize((height, width)) - # image.save('./test_img/image_sd1_5.jpg') - # input() - - if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): - raise ValueError( - f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" - ) - - # Offload text encoder if `enable_model_cpu_offload` was enabled - if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: - self.text_encoder_2.to("cpu") - torch.cuda.empty_cache() - - image = self.image_processor.preprocess(image) - - image = image.to(device=device, dtype=dtype) - - batch_size = batch_size * num_images_per_prompt - - if image.shape[1] == 4: - init_latents = image - - else: - # make sure the VAE is in float32 mode, as it overflows in float16 - if self.vae.config.force_upcast: - image = image.float() - self.vae.to(dtype=torch.float32) - - if isinstance(generator, list) and len(generator) != batch_size: - raise ValueError( - f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" - f" size of {batch_size}. Make sure the batch size matches the length of the generators." - ) - - elif isinstance(generator, list): - init_latents = [ - self.vae.encode(image[i: i + 1]).latent_dist.sample(generator[i]) for i in range(batch_size) - ] - init_latents = torch.cat(init_latents, dim=0) - else: - init_latents = self.vae.encode(image).latent_dist.sample(generator) - - if self.vae.config.force_upcast: - self.vae.to(dtype) - - init_latents = init_latents.to(dtype) - init_latents = self.vae.config.scaling_factor * init_latents - - if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: - # expand init_latents for batch_size - additional_image_per_prompt = batch_size // init_latents.shape[0] - init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) - elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: - raise ValueError( - f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." - ) - else: - init_latents = torch.cat([init_latents], dim=0) - - if add_noise: - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - latents = init_latents - - return latents - - def get_timesteps(self, num_inference_steps, strength, device, denoising_start=None): - # get the original timestep using init_timestep - if denoising_start is None: - init_timestep = min(int(num_inference_steps * strength), num_inference_steps) - t_start = max(num_inference_steps - init_timestep, 0) - else: - t_start = 0 - - timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] - - # Strength is irrelevant if we directly request a timestep to start at; - # that is, strength is determined by the denoising_start instead. - if denoising_start is not None: - discrete_timestep_cutoff = int( - round( - self.scheduler.config.num_train_timesteps - - (denoising_start * self.scheduler.config.num_train_timesteps) - ) - ) - timesteps = list(filter(lambda ts: ts < discrete_timestep_cutoff, timesteps)) - return torch.tensor(timesteps), len(timesteps) - - return timesteps, num_inference_steps - t_start - - def sd1_5_add_noise(self, init_latents, timestep, generator, device, dtype): - shape = init_latents.shape - noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) - # get latents - init_latents = self.scheduler.add_noise(init_latents, noise, timestep) - - image = self.vae_sd1_5.decode(init_latents / self.vae_sd1_5.config.scaling_factor, return_dict=False)[0] - do_denormalize = [True] * image.shape[0] - image = self.image_processor_sd1_5.postprocess(image, output_type='pil', do_denormalize=do_denormalize)[0] - # image.save(f'./test_img/noisy_image_sd1_5_{int(timestep)}.jpg') - - return init_latents diff --git a/scripts/xadapter/unet_adapter.py b/scripts/xadapter/unet_adapter.py deleted file mode 100644 index 7ee6af94e..000000000 --- a/scripts/xadapter/unet_adapter.py +++ /dev/null @@ -1,1073 +0,0 @@ -# Copyright 2023 The HuggingFace Team. All rights reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -from dataclasses import dataclass -from typing import Any, Dict, List, Optional, Tuple, Union - -import torch -import torch.nn as nn -import torch.utils.checkpoint - -from diffusers.configuration_utils import ConfigMixin, register_to_config -from diffusers.loaders import UNet2DConditionLoadersMixin -from diffusers.utils import BaseOutput, logging -from diffusers.models.activations import get_activation -from diffusers.models.attention_processor import AttentionProcessor, AttnProcessor -from diffusers.models.embeddings import ( - GaussianFourierProjection, - ImageHintTimeEmbedding, - ImageProjection, - ImageTimeEmbedding, - TextImageProjection, - TextImageTimeEmbedding, - TextTimeEmbedding, - TimestepEmbedding, - Timesteps, -) -from modules.xadapter.xadapter_hijacks import PositionNet -from diffusers.models.modeling_utils import ModelMixin -try: - from diffusers.models.unet_2d_blocks import UNetMidBlock2DCrossAttn, UNetMidBlock2DSimpleCrossAttn, get_down_block, get_up_block -except Exception: - from diffusers.models.unets.unet_2d_blocks import UNetMidBlock2DCrossAttn, UNetMidBlock2DSimpleCrossAttn, get_down_block, get_up_block - - -logger = logging.get_logger(__name__) # pylint: disable=invalid-name - - -@dataclass -class UNet2DConditionOutput(BaseOutput): - """ - The output of [`UNet2DConditionModel`]. - - Args: - sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): - The hidden states output conditioned on `encoder_hidden_states` input. Output of last layer of model. - """ - - sample: torch.FloatTensor = None - hidden_states: Optional[list] = None - encoder_feature: Optional[list] = None - - -class UNet2DConditionModel(ModelMixin, ConfigMixin, UNet2DConditionLoadersMixin): - r""" - A conditional 2D UNet model that takes a noisy sample, conditional state, and a timestep and returns a sample - shaped output. - - This model inherits from [`ModelMixin`]. Check the superclass documentation for it's generic methods implemented - for all models (such as downloading or saving). - - Parameters: - sample_size (`int` or `Tuple[int, int]`, *optional*, defaults to `None`): - Height and width of input/output sample. - in_channels (`int`, *optional*, defaults to 4): Number of channels in the input sample. - out_channels (`int`, *optional*, defaults to 4): Number of channels in the output. - center_input_sample (`bool`, *optional*, defaults to `False`): Whether to center the input sample. - flip_sin_to_cos (`bool`, *optional*, defaults to `False`): - Whether to flip the sin to cos in the time embedding. - freq_shift (`int`, *optional*, defaults to 0): The frequency shift to apply to the time embedding. - down_block_types (`Tuple[str]`, *optional*, defaults to `("CrossAttnDownBlock2D", "CrossAttnDownBlock2D", "CrossAttnDownBlock2D", "DownBlock2D")`): - The tuple of downsample blocks to use. - mid_block_type (`str`, *optional*, defaults to `"UNetMidBlock2DCrossAttn"`): - Block type for middle of UNet, it can be either `UNetMidBlock2DCrossAttn` or - `UNetMidBlock2DSimpleCrossAttn`. If `None`, the mid block layer is skipped. - up_block_types (`Tuple[str]`, *optional*, defaults to `("UpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D")`): - The tuple of upsample blocks to use. - only_cross_attention(`bool` or `Tuple[bool]`, *optional*, default to `False`): - Whether to include self-attention in the basic transformer blocks, see - [`~models.attention.BasicTransformerBlock`]. - block_out_channels (`Tuple[int]`, *optional*, defaults to `(320, 640, 1280, 1280)`): - The tuple of output channels for each block. - layers_per_block (`int`, *optional*, defaults to 2): The number of layers per block. - downsample_padding (`int`, *optional*, defaults to 1): The padding to use for the downsampling convolution. - mid_block_scale_factor (`float`, *optional*, defaults to 1.0): The scale factor to use for the mid block. - act_fn (`str`, *optional*, defaults to `"silu"`): The activation function to use. - norm_num_groups (`int`, *optional*, defaults to 32): The number of groups to use for the normalization. - If `None`, normalization and activation layers is skipped in post-processing. - norm_eps (`float`, *optional*, defaults to 1e-5): The epsilon to use for the normalization. - cross_attention_dim (`int` or `Tuple[int]`, *optional*, defaults to 1280): - The dimension of the cross attention features. - transformer_layers_per_block (`int` or `Tuple[int]`, *optional*, defaults to 1): - The number of transformer blocks of type [`~models.attention.BasicTransformerBlock`]. Only relevant for - [`~models.unet_2d_blocks.CrossAttnDownBlock2D`], [`~models.unet_2d_blocks.CrossAttnUpBlock2D`], - [`~models.unet_2d_blocks.UNetMidBlock2DCrossAttn`]. - encoder_hid_dim (`int`, *optional*, defaults to None): - If `encoder_hid_dim_type` is defined, `encoder_hidden_states` will be projected from `encoder_hid_dim` - dimension to `cross_attention_dim`. - encoder_hid_dim_type (`str`, *optional*, defaults to `None`): - If given, the `encoder_hidden_states` and potentially other embeddings are down-projected to text - embeddings of dimension `cross_attention` according to `encoder_hid_dim_type`. - attention_head_dim (`int`, *optional*, defaults to 8): The dimension of the attention heads. - num_attention_heads (`int`, *optional*): - The number of attention heads. If not defined, defaults to `attention_head_dim` - resnet_time_scale_shift (`str`, *optional*, defaults to `"default"`): Time scale shift config - for ResNet blocks (see [`~models.resnet.ResnetBlock2D`]). Choose from `default` or `scale_shift`. - class_embed_type (`str`, *optional*, defaults to `None`): - The type of class embedding to use which is ultimately summed with the time embeddings. Choose from `None`, - `"timestep"`, `"identity"`, `"projection"`, or `"simple_projection"`. - addition_embed_type (`str`, *optional*, defaults to `None`): - Configures an optional embedding which will be summed with the time embeddings. Choose from `None` or - "text". "text" will use the `TextTimeEmbedding` layer. - addition_time_embed_dim: (`int`, *optional*, defaults to `None`): - Dimension for the timestep embeddings. - num_class_embeds (`int`, *optional*, defaults to `None`): - Input dimension of the learnable embedding matrix to be projected to `time_embed_dim`, when performing - class conditioning with `class_embed_type` equal to `None`. - time_embedding_type (`str`, *optional*, defaults to `positional`): - The type of position embedding to use for timesteps. Choose from `positional` or `fourier`. - time_embedding_dim (`int`, *optional*, defaults to `None`): - An optional override for the dimension of the projected time embedding. - time_embedding_act_fn (`str`, *optional*, defaults to `None`): - Optional activation function to use only once on the time embeddings before they are passed to the rest of - the UNet. Choose from `silu`, `mish`, `gelu`, and `swish`. - timestep_post_act (`str`, *optional*, defaults to `None`): - The second activation function to use in timestep embedding. Choose from `silu`, `mish` and `gelu`. - time_cond_proj_dim (`int`, *optional*, defaults to `None`): - The dimension of `cond_proj` layer in the timestep embedding. - conv_in_kernel (`int`, *optional*, default to `3`): The kernel size of `conv_in` layer. - conv_out_kernel (`int`, *optional*, default to `3`): The kernel size of `conv_out` layer. - projection_class_embeddings_input_dim (`int`, *optional*): The dimension of the `class_labels` input when - `class_embed_type="projection"`. Required when `class_embed_type="projection"`. - class_embeddings_concat (`bool`, *optional*, defaults to `False`): Whether to concatenate the time - embeddings with the class embeddings. - mid_block_only_cross_attention (`bool`, *optional*, defaults to `None`): - Whether to use cross attention with the mid block when using the `UNetMidBlock2DSimpleCrossAttn`. If - `only_cross_attention` is given as a single boolean and `mid_block_only_cross_attention` is `None`, the - `only_cross_attention` value is used as the value for `mid_block_only_cross_attention`. Default to `False` - otherwise. - """ - - _supports_gradient_checkpointing = True - - @register_to_config - def __init__( - self, - sample_size: Optional[int] = None, - in_channels: int = 4, - out_channels: int = 4, - center_input_sample: bool = False, - flip_sin_to_cos: bool = True, - freq_shift: int = 0, - down_block_types: Tuple[str] = ( - "CrossAttnDownBlock2D", - "CrossAttnDownBlock2D", - "CrossAttnDownBlock2D", - "DownBlock2D", - ), - mid_block_type: Optional[str] = "UNetMidBlock2DCrossAttn", - up_block_types: Tuple[str] = ("UpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D"), - only_cross_attention: Union[bool, Tuple[bool]] = False, - block_out_channels: Tuple[int] = (320, 640, 1280, 1280), - layers_per_block: Union[int, Tuple[int]] = 2, - downsample_padding: int = 1, - mid_block_scale_factor: float = 1, - act_fn: str = "silu", - norm_num_groups: Optional[int] = 32, - norm_eps: float = 1e-5, - cross_attention_dim: Union[int, Tuple[int]] = 1280, - transformer_layers_per_block: Union[int, Tuple[int]] = 1, - encoder_hid_dim: Optional[int] = None, - encoder_hid_dim_type: Optional[str] = None, - attention_head_dim: Union[int, Tuple[int]] = 8, - num_attention_heads: Optional[Union[int, Tuple[int]]] = None, - dual_cross_attention: bool = False, - use_linear_projection: bool = False, - class_embed_type: Optional[str] = None, - addition_embed_type: Optional[str] = None, - addition_time_embed_dim: Optional[int] = None, - num_class_embeds: Optional[int] = None, - upcast_attention: bool = False, - resnet_time_scale_shift: str = "default", - resnet_skip_time_act: bool = False, - resnet_out_scale_factor: int = 1.0, - time_embedding_type: str = "positional", - time_embedding_dim: Optional[int] = None, - time_embedding_act_fn: Optional[str] = None, - timestep_post_act: Optional[str] = None, - time_cond_proj_dim: Optional[int] = None, - conv_in_kernel: int = 3, - conv_out_kernel: int = 3, - projection_class_embeddings_input_dim: Optional[int] = None, - attention_type: str = "default", - class_embeddings_concat: bool = False, - mid_block_only_cross_attention: Optional[bool] = None, - cross_attention_norm: Optional[str] = None, - addition_embed_type_num_heads=64, - ): - super().__init__() - - self.sample_size = sample_size - - if num_attention_heads is not None: - raise ValueError( - "At the moment it is not possible to define the number of attention heads via `num_attention_heads` because of a naming issue as described in https://github.com/huggingface/diffusers/issues/2011#issuecomment-1547958131. Passing `num_attention_heads` will only be supported in diffusers v0.19." - ) - - # If `num_attention_heads` is not defined (which is the case for most models) - # it will default to `attention_head_dim`. This looks weird upon first reading it and it is. - # The reason for this behavior is to correct for incorrectly named variables that were introduced - # when this library was created. The incorrect naming was only discovered much later in https://github.com/huggingface/diffusers/issues/2011#issuecomment-1547958131 - # Changing `attention_head_dim` to `num_attention_heads` for 40,000+ configurations is too backwards breaking - # which is why we correct for the naming here. - num_attention_heads = num_attention_heads or attention_head_dim - - # Check inputs - if len(down_block_types) != len(up_block_types): - raise ValueError( - f"Must provide the same number of `down_block_types` as `up_block_types`. `down_block_types`: {down_block_types}. `up_block_types`: {up_block_types}." - ) - - if len(block_out_channels) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `block_out_channels` as `down_block_types`. `block_out_channels`: {block_out_channels}. `down_block_types`: {down_block_types}." - ) - - if not isinstance(only_cross_attention, bool) and len(only_cross_attention) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `only_cross_attention` as `down_block_types`. `only_cross_attention`: {only_cross_attention}. `down_block_types`: {down_block_types}." - ) - - if not isinstance(num_attention_heads, int) and len(num_attention_heads) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `num_attention_heads` as `down_block_types`. `num_attention_heads`: {num_attention_heads}. `down_block_types`: {down_block_types}." - ) - - if not isinstance(attention_head_dim, int) and len(attention_head_dim) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `attention_head_dim` as `down_block_types`. `attention_head_dim`: {attention_head_dim}. `down_block_types`: {down_block_types}." - ) - - if isinstance(cross_attention_dim, list) and len(cross_attention_dim) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `cross_attention_dim` as `down_block_types`. `cross_attention_dim`: {cross_attention_dim}. `down_block_types`: {down_block_types}." - ) - - if not isinstance(layers_per_block, int) and len(layers_per_block) != len(down_block_types): - raise ValueError( - f"Must provide the same number of `layers_per_block` as `down_block_types`. `layers_per_block`: {layers_per_block}. `down_block_types`: {down_block_types}." - ) - - # input - conv_in_padding = (conv_in_kernel - 1) // 2 - self.conv_in = nn.Conv2d( - in_channels, block_out_channels[0], kernel_size=conv_in_kernel, padding=conv_in_padding - ) - - # time - if time_embedding_type == "fourier": - time_embed_dim = time_embedding_dim or block_out_channels[0] * 2 - if time_embed_dim % 2 != 0: - raise ValueError(f"`time_embed_dim` should be divisible by 2, but is {time_embed_dim}.") - self.time_proj = GaussianFourierProjection( - time_embed_dim // 2, set_W_to_weight=False, log=False, flip_sin_to_cos=flip_sin_to_cos - ) - timestep_input_dim = time_embed_dim - elif time_embedding_type == "positional": - time_embed_dim = time_embedding_dim or block_out_channels[0] * 4 - - self.time_proj = Timesteps(block_out_channels[0], flip_sin_to_cos, freq_shift) - timestep_input_dim = block_out_channels[0] - else: - raise ValueError( - f"{time_embedding_type} does not exist. Please make sure to use one of `fourier` or `positional`." - ) - - self.time_embedding = TimestepEmbedding( - timestep_input_dim, - time_embed_dim, - act_fn=act_fn, - post_act_fn=timestep_post_act, - cond_proj_dim=time_cond_proj_dim, - ) - - if encoder_hid_dim_type is None and encoder_hid_dim is not None: - encoder_hid_dim_type = "text_proj" - self.register_to_config(encoder_hid_dim_type=encoder_hid_dim_type) - logger.info("encoder_hid_dim_type defaults to 'text_proj' as `encoder_hid_dim` is defined.") - - if encoder_hid_dim is None and encoder_hid_dim_type is not None: - raise ValueError( - f"`encoder_hid_dim` has to be defined when `encoder_hid_dim_type` is set to {encoder_hid_dim_type}." - ) - - if encoder_hid_dim_type == "text_proj": - self.encoder_hid_proj = nn.Linear(encoder_hid_dim, cross_attention_dim) - elif encoder_hid_dim_type == "text_image_proj": - # image_embed_dim DOESN'T have to be `cross_attention_dim`. To not clutter the __init__ too much - # they are set to `cross_attention_dim` here as this is exactly the required dimension for the currently only use - # case when `addition_embed_type == "text_image_proj"` (Kadinsky 2.1)` - self.encoder_hid_proj = TextImageProjection( - text_embed_dim=encoder_hid_dim, - image_embed_dim=cross_attention_dim, - cross_attention_dim=cross_attention_dim, - ) - elif encoder_hid_dim_type == "image_proj": - # Kandinsky 2.2 - self.encoder_hid_proj = ImageProjection( - image_embed_dim=encoder_hid_dim, - cross_attention_dim=cross_attention_dim, - ) - elif encoder_hid_dim_type is not None: - raise ValueError( - f"encoder_hid_dim_type: {encoder_hid_dim_type} must be None, 'text_proj' or 'text_image_proj'." - ) - else: - self.encoder_hid_proj = None - - # class embedding - if class_embed_type is None and num_class_embeds is not None: - self.class_embedding = nn.Embedding(num_class_embeds, time_embed_dim) - elif class_embed_type == "timestep": - self.class_embedding = TimestepEmbedding(timestep_input_dim, time_embed_dim, act_fn=act_fn) - elif class_embed_type == "identity": - self.class_embedding = nn.Identity(time_embed_dim, time_embed_dim) - elif class_embed_type == "projection": - if projection_class_embeddings_input_dim is None: - raise ValueError( - "`class_embed_type`: 'projection' requires `projection_class_embeddings_input_dim` be set" - ) - # The projection `class_embed_type` is the same as the timestep `class_embed_type` except - # 1. the `class_labels` inputs are not first converted to sinusoidal embeddings - # 2. it projects from an arbitrary input dimension. - # - # Note that `TimestepEmbedding` is quite general, being mainly linear layers and activations. - # When used for embedding actual timesteps, the timesteps are first converted to sinusoidal embeddings. - # As a result, `TimestepEmbedding` can be passed arbitrary vectors. - self.class_embedding = TimestepEmbedding(projection_class_embeddings_input_dim, time_embed_dim) - elif class_embed_type == "simple_projection": - if projection_class_embeddings_input_dim is None: - raise ValueError( - "`class_embed_type`: 'simple_projection' requires `projection_class_embeddings_input_dim` be set" - ) - self.class_embedding = nn.Linear(projection_class_embeddings_input_dim, time_embed_dim) - else: - self.class_embedding = None - - if addition_embed_type == "text": - if encoder_hid_dim is not None: - text_time_embedding_from_dim = encoder_hid_dim - else: - text_time_embedding_from_dim = cross_attention_dim - - self.add_embedding = TextTimeEmbedding( - text_time_embedding_from_dim, time_embed_dim, num_heads=addition_embed_type_num_heads - ) - elif addition_embed_type == "text_image": - # text_embed_dim and image_embed_dim DON'T have to be `cross_attention_dim`. To not clutter the __init__ too much - # they are set to `cross_attention_dim` here as this is exactly the required dimension for the currently only use - # case when `addition_embed_type == "text_image"` (Kadinsky 2.1)` - self.add_embedding = TextImageTimeEmbedding( - text_embed_dim=cross_attention_dim, image_embed_dim=cross_attention_dim, time_embed_dim=time_embed_dim - ) - elif addition_embed_type == "text_time": - self.add_time_proj = Timesteps(addition_time_embed_dim, flip_sin_to_cos, freq_shift) - self.add_embedding = TimestepEmbedding(projection_class_embeddings_input_dim, time_embed_dim) - elif addition_embed_type == "image": - # Kandinsky 2.2 - self.add_embedding = ImageTimeEmbedding(image_embed_dim=encoder_hid_dim, time_embed_dim=time_embed_dim) - elif addition_embed_type == "image_hint": - # Kandinsky 2.2 ControlNet - self.add_embedding = ImageHintTimeEmbedding(image_embed_dim=encoder_hid_dim, time_embed_dim=time_embed_dim) - elif addition_embed_type is not None: - raise ValueError(f"addition_embed_type: {addition_embed_type} must be None, 'text' or 'text_image'.") - - if time_embedding_act_fn is None: - self.time_embed_act = None - else: - self.time_embed_act = get_activation(time_embedding_act_fn) - - self.down_blocks = nn.ModuleList([]) - self.up_blocks = nn.ModuleList([]) - - if isinstance(only_cross_attention, bool): - if mid_block_only_cross_attention is None: - mid_block_only_cross_attention = only_cross_attention - - only_cross_attention = [only_cross_attention] * len(down_block_types) - - if mid_block_only_cross_attention is None: - mid_block_only_cross_attention = False - - if isinstance(num_attention_heads, int): - num_attention_heads = (num_attention_heads,) * len(down_block_types) - - if isinstance(attention_head_dim, int): - attention_head_dim = (attention_head_dim,) * len(down_block_types) - - if isinstance(cross_attention_dim, int): - cross_attention_dim = (cross_attention_dim,) * len(down_block_types) - - if isinstance(layers_per_block, int): - layers_per_block = [layers_per_block] * len(down_block_types) - - if isinstance(transformer_layers_per_block, int): - transformer_layers_per_block = [transformer_layers_per_block] * len(down_block_types) - - if class_embeddings_concat: - # The time embeddings are concatenated with the class embeddings. The dimension of the - # time embeddings passed to the down, middle, and up blocks is twice the dimension of the - # regular time embeddings - blocks_time_embed_dim = time_embed_dim * 2 - else: - blocks_time_embed_dim = time_embed_dim - - # down - output_channel = block_out_channels[0] - for i, down_block_type in enumerate(down_block_types): - input_channel = output_channel - output_channel = block_out_channels[i] - is_final_block = i == len(block_out_channels) - 1 - - down_block = get_down_block( - down_block_type, - num_layers=layers_per_block[i], - transformer_layers_per_block=transformer_layers_per_block[i], - in_channels=input_channel, - out_channels=output_channel, - temb_channels=blocks_time_embed_dim, - add_downsample=not is_final_block, - resnet_eps=norm_eps, - resnet_act_fn=act_fn, - resnet_groups=norm_num_groups, - cross_attention_dim=cross_attention_dim[i], - num_attention_heads=num_attention_heads[i], - downsample_padding=downsample_padding, - dual_cross_attention=dual_cross_attention, - use_linear_projection=use_linear_projection, - only_cross_attention=only_cross_attention[i], - upcast_attention=upcast_attention, - resnet_time_scale_shift=resnet_time_scale_shift, - attention_type=attention_type, - resnet_skip_time_act=resnet_skip_time_act, - resnet_out_scale_factor=resnet_out_scale_factor, - cross_attention_norm=cross_attention_norm, - attention_head_dim=attention_head_dim[i] if attention_head_dim[i] is not None else output_channel, - ) - self.down_blocks.append(down_block) - - # mid - if mid_block_type == "UNetMidBlock2DCrossAttn": - self.mid_block = UNetMidBlock2DCrossAttn( - transformer_layers_per_block=transformer_layers_per_block[-1], - in_channels=block_out_channels[-1], - temb_channels=blocks_time_embed_dim, - resnet_eps=norm_eps, - resnet_act_fn=act_fn, - output_scale_factor=mid_block_scale_factor, - resnet_time_scale_shift=resnet_time_scale_shift, - cross_attention_dim=cross_attention_dim[-1], - num_attention_heads=num_attention_heads[-1], - resnet_groups=norm_num_groups, - dual_cross_attention=dual_cross_attention, - use_linear_projection=use_linear_projection, - upcast_attention=upcast_attention, - attention_type=attention_type, - ) - elif mid_block_type == "UNetMidBlock2DSimpleCrossAttn": - self.mid_block = UNetMidBlock2DSimpleCrossAttn( - in_channels=block_out_channels[-1], - temb_channels=blocks_time_embed_dim, - resnet_eps=norm_eps, - resnet_act_fn=act_fn, - output_scale_factor=mid_block_scale_factor, - cross_attention_dim=cross_attention_dim[-1], - attention_head_dim=attention_head_dim[-1], - resnet_groups=norm_num_groups, - resnet_time_scale_shift=resnet_time_scale_shift, - skip_time_act=resnet_skip_time_act, - only_cross_attention=mid_block_only_cross_attention, - cross_attention_norm=cross_attention_norm, - ) - elif mid_block_type is None: - self.mid_block = None - else: - raise ValueError(f"unknown mid_block_type : {mid_block_type}") - - # count how many layers upsample the images - self.num_upsamplers = 0 - - # up - reversed_block_out_channels = list(reversed(block_out_channels)) - reversed_num_attention_heads = list(reversed(num_attention_heads)) - reversed_layers_per_block = list(reversed(layers_per_block)) - reversed_cross_attention_dim = list(reversed(cross_attention_dim)) - reversed_transformer_layers_per_block = list(reversed(transformer_layers_per_block)) - only_cross_attention = list(reversed(only_cross_attention)) - - output_channel = reversed_block_out_channels[0] - for i, up_block_type in enumerate(up_block_types): - is_final_block = i == len(block_out_channels) - 1 - - prev_output_channel = output_channel - output_channel = reversed_block_out_channels[i] - input_channel = reversed_block_out_channels[min(i + 1, len(block_out_channels) - 1)] - - # add upsample block for all BUT final layer - if not is_final_block: - add_upsample = True - self.num_upsamplers += 1 - else: - add_upsample = False - - up_block = get_up_block( - up_block_type, - num_layers=reversed_layers_per_block[i] + 1, - transformer_layers_per_block=reversed_transformer_layers_per_block[i], - in_channels=input_channel, - out_channels=output_channel, - prev_output_channel=prev_output_channel, - temb_channels=blocks_time_embed_dim, - add_upsample=add_upsample, - resnet_eps=norm_eps, - resnet_act_fn=act_fn, - resnet_groups=norm_num_groups, - cross_attention_dim=reversed_cross_attention_dim[i], - num_attention_heads=reversed_num_attention_heads[i], - dual_cross_attention=dual_cross_attention, - use_linear_projection=use_linear_projection, - only_cross_attention=only_cross_attention[i], - upcast_attention=upcast_attention, - resnet_time_scale_shift=resnet_time_scale_shift, - attention_type=attention_type, - resnet_skip_time_act=resnet_skip_time_act, - resnet_out_scale_factor=resnet_out_scale_factor, - cross_attention_norm=cross_attention_norm, - attention_head_dim=attention_head_dim[i] if attention_head_dim[i] is not None else output_channel, - ) - self.up_blocks.append(up_block) - prev_output_channel = output_channel - - # out - if norm_num_groups is not None: - self.conv_norm_out = nn.GroupNorm( - num_channels=block_out_channels[0], num_groups=norm_num_groups, eps=norm_eps - ) - - self.conv_act = get_activation(act_fn) - - else: - self.conv_norm_out = None - self.conv_act = None - - conv_out_padding = (conv_out_kernel - 1) // 2 - self.conv_out = nn.Conv2d( - block_out_channels[0], out_channels, kernel_size=conv_out_kernel, padding=conv_out_padding - ) - - if attention_type == "gated": - positive_len = 768 - if isinstance(cross_attention_dim, int): - positive_len = cross_attention_dim - elif isinstance(cross_attention_dim, tuple) or isinstance(cross_attention_dim, list): - positive_len = cross_attention_dim[0] - self.position_net = PositionNet(positive_len=positive_len, out_dim=cross_attention_dim) - - - @property - def attn_processors(self) -> Dict[str, AttentionProcessor]: - r""" - Returns: - `dict` of attention processors: A dictionary containing all attention processors used in the model with - indexed by its weight name. - """ - # set recursively - processors = {} - - def fn_recursive_add_processors(name: str, module: torch.nn.Module, processors: Dict[str, AttentionProcessor]): - if hasattr(module, "set_processor"): - processors[f"{name}.processor"] = module.processor - - for sub_name, child in module.named_children(): - fn_recursive_add_processors(f"{name}.{sub_name}", child, processors) - - return processors - - for name, module in self.named_children(): - fn_recursive_add_processors(name, module, processors) - - return processors - - def set_attn_processor(self, processor: Union[AttentionProcessor, Dict[str, AttentionProcessor]]): - r""" - Sets the attention processor to use to compute attention. - - Parameters: - processor (`dict` of `AttentionProcessor` or only `AttentionProcessor`): - The instantiated processor class or a dictionary of processor classes that will be set as the processor - for **all** `Attention` layers. - - If `processor` is a dict, the key needs to define the path to the corresponding cross attention - processor. This is strongly recommended when setting trainable attention processors. - - """ - count = len(self.attn_processors.keys()) - - if isinstance(processor, dict) and len(processor) != count: - raise ValueError( - f"A dict of processors was passed, but the number of processors {len(processor)} does not match the" - f" number of attention layers: {count}. Please make sure to pass {count} processor classes." - ) - - def fn_recursive_attn_processor(name: str, module: torch.nn.Module, processor): - if hasattr(module, "set_processor"): - if not isinstance(processor, dict): - module.set_processor(processor) - else: - module.set_processor(processor.pop(f"{name}.processor")) - - for sub_name, child in module.named_children(): - fn_recursive_attn_processor(f"{name}.{sub_name}", child, processor) - - for name, module in self.named_children(): - fn_recursive_attn_processor(name, module, processor) - - def set_default_attn_processor(self): - """ - Disables custom attention processors and sets the default attention implementation. - """ - self.set_attn_processor(AttnProcessor()) - - def set_attention_slice(self, slice_size): - r""" - Enable sliced attention computation. - - When this option is enabled, the attention module splits the input tensor in slices to compute attention in - several steps. This is useful for saving some memory in exchange for a small decrease in speed. - - Args: - slice_size (`str` or `int` or `list(int)`, *optional*, defaults to `"auto"`): - When `"auto"`, input to the attention heads is halved, so attention is computed in two steps. If - `"max"`, maximum amount of memory is saved by running only one slice at a time. If a number is - provided, uses as many slices as `attention_head_dim // slice_size`. In this case, `attention_head_dim` - must be a multiple of `slice_size`. - """ - sliceable_head_dims = [] - - def fn_recursive_retrieve_sliceable_dims(module: torch.nn.Module): - if hasattr(module, "set_attention_slice"): - sliceable_head_dims.append(module.sliceable_head_dim) - - for child in module.children(): - fn_recursive_retrieve_sliceable_dims(child) - - # retrieve number of attention layers - for module in self.children(): - fn_recursive_retrieve_sliceable_dims(module) - - num_sliceable_layers = len(sliceable_head_dims) - - if slice_size == "auto": - # half the attention head size is usually a good trade-off between - # speed and memory - slice_size = [dim // 2 for dim in sliceable_head_dims] - elif slice_size == "max": - # make smallest slice possible - slice_size = num_sliceable_layers * [1] - - slice_size = num_sliceable_layers * [slice_size] if not isinstance(slice_size, list) else slice_size - - if len(slice_size) != len(sliceable_head_dims): - raise ValueError( - f"You have provided {len(slice_size)}, but {self.config} has {len(sliceable_head_dims)} different" - f" attention layers. Make sure to match `len(slice_size)` to be {len(sliceable_head_dims)}." - ) - - for i in range(len(slice_size)): - size = slice_size[i] - dim = sliceable_head_dims[i] - if size is not None and size > dim: - raise ValueError(f"size {size} has to be smaller or equal to {dim}.") - - # Recursively walk through all the children. - # Any children which exposes the set_attention_slice method - # gets the message - def fn_recursive_set_attention_slice(module: torch.nn.Module, slice_size: List[int]): - if hasattr(module, "set_attention_slice"): - module.set_attention_slice(slice_size.pop()) - - for child in module.children(): - fn_recursive_set_attention_slice(child, slice_size) - - reversed_slice_size = list(reversed(slice_size)) - for module in self.children(): - fn_recursive_set_attention_slice(module, reversed_slice_size) - - def _set_gradient_checkpointing(self, module, value=False): - if hasattr(module, "gradient_checkpointing"): - module.gradient_checkpointing = value - - def forward( - self, - sample: torch.FloatTensor, - timestep: Union[torch.Tensor, float, int], - encoder_hidden_states: torch.Tensor, - class_labels: Optional[torch.Tensor] = None, - timestep_cond: Optional[torch.Tensor] = None, - attention_mask: Optional[torch.Tensor] = None, - cross_attention_kwargs: Optional[Dict[str, Any]] = None, - added_cond_kwargs: Optional[Dict[str, torch.Tensor]] = None, - down_block_additional_residuals: Optional[Tuple[torch.Tensor]] = None, - mid_block_additional_residual: Optional[torch.Tensor] = None, - up_block_additional_residual: Optional[torch.Tensor] = None, - encoder_attention_mask: Optional[torch.Tensor] = None, - return_dict: bool = True, - return_hidden_states: bool = False, - return_encoder_feature: bool = False, - return_early: bool = False, - down_bridge_residuals: Optional[Tuple[torch.Tensor]] = None, - fusion_guidance_scale: Optional[torch.FloatTensor] = None, - fusion_type: Optional[str] = 'ADD', - adapter = None - ) -> Union[UNet2DConditionOutput, Tuple]: - r""" - The [`UNet2DConditionModel`] forward method. - - Args: - sample (`torch.FloatTensor`): - The noisy input tensor with the following shape `(batch, channel, height, width)`. - timestep (`torch.FloatTensor` or `float` or `int`): The number of timesteps to denoise an input. - encoder_hidden_states (`torch.FloatTensor`): - The encoder hidden states with shape `(batch, sequence_length, feature_dim)`. - encoder_attention_mask (`torch.Tensor`): - A cross-attention mask of shape `(batch, sequence_length)` is applied to `encoder_hidden_states`. If - `True` the mask is kept, otherwise if `False` it is discarded. Mask will be converted into a bias, - which adds large negative values to the attention scores corresponding to "discard" tokens. - return_dict (`bool`, *optional*, defaults to `True`): - Whether or not to return a [`~models.unet_2d_condition.UNet2DConditionOutput`] instead of a plain - tuple. - cross_attention_kwargs (`dict`, *optional*): - A kwargs dictionary that if specified is passed along to the [`AttnProcessor`]. - added_cond_kwargs: (`dict`, *optional*): - A kwargs dictionary containin additional embeddings that if specified are added to the embeddings that - are passed along to the UNet blocks. - - Returns: - [`~models.unet_2d_condition.UNet2DConditionOutput`] or `tuple`: - If `return_dict` is True, an [`~models.unet_2d_condition.UNet2DConditionOutput`] is returned, otherwise - a `tuple` is returned where the first element is the sample tensor. - """ - # By default samples have to be AT least a multiple of the overall upsampling factor. - # The overall upsampling factor is equal to 2 ** (# num of upsampling layers). - # However, the upsampling interpolation output size can be forced to fit any upsampling size - # on the fly if necessary. - ############## bridge usage ################## - if return_hidden_states: - hidden_states = [] - return_dict = True - ############## end of bridge usage ################## - - - - default_overall_up_factor = 2**self.num_upsamplers - - # upsample size should be forwarded when sample is not a multiple of `default_overall_up_factor` - forward_upsample_size = False - upsample_size = None - - if any(s % default_overall_up_factor != 0 for s in sample.shape[-2:]): - logger.info("Forward upsample size to force interpolation output size.") - forward_upsample_size = True - - # ensure attention_mask is a bias, and give it a singleton query_tokens dimension - # expects mask of shape: - # [batch, key_tokens] - # adds singleton query_tokens dimension: - # [batch, 1, key_tokens] - # this helps to broadcast it as a bias over attention scores, which will be in one of the following shapes: - # [batch, heads, query_tokens, key_tokens] (e.g. torch sdp attn) - # [batch * heads, query_tokens, key_tokens] (e.g. xformers or classic attn) - if attention_mask is not None: - # assume that mask is expressed as: - # (1 = keep, 0 = discard) - # convert mask into a bias that can be added to attention scores: - # (keep = +0, discard = -10000.0) - attention_mask = (1 - attention_mask.to(sample.dtype)) * -10000.0 - attention_mask = attention_mask.unsqueeze(1) - - # convert encoder_attention_mask to a bias the same way we do for attention_mask - if encoder_attention_mask is not None: - encoder_attention_mask = (1 - encoder_attention_mask.to(sample.dtype)) * -10000.0 - encoder_attention_mask = encoder_attention_mask.unsqueeze(1) - - # 0. center input if necessary - if self.config.center_input_sample: - sample = 2 * sample - 1.0 - - # 1. time - timesteps = timestep - if not torch.is_tensor(timesteps): - is_mps = sample.device.type == "mps" - if isinstance(timestep, float): - dtype = torch.float32 if is_mps else torch.float64 - else: - dtype = torch.int32 if is_mps else torch.int64 - timesteps = torch.tensor([timesteps], dtype=dtype, device=sample.device) - elif len(timesteps.shape) == 0: - timesteps = timesteps[None].to(sample.device) - - # broadcast to batch dimension in a way that's compatible with ONNX/Core ML - timesteps = timesteps.expand(sample.shape[0]) - - t_emb = self.time_proj(timesteps) # 2, 320 - - # `Timesteps` does not contain any weights and will always return f32 tensors - # but time_embedding might actually be running in fp16. so we need to cast here. - # there might be better ways to encapsulate this. - t_emb = t_emb.to(dtype=sample.dtype) - - emb = self.time_embedding(t_emb, timestep_cond) - - aug_emb = None - - if self.class_embedding is not None: - if class_labels is None: - raise ValueError("class_labels should be provided when num_class_embeds > 0") - - if self.config.class_embed_type == "timestep": - class_labels = self.time_proj(class_labels) - - # `Timesteps` does not contain any weights and will always return f32 tensors - # there might be better ways to encapsulate this. - class_labels = class_labels.to(dtype=sample.dtype) - - class_emb = self.class_embedding(class_labels).to(dtype=sample.dtype) - - if self.config.class_embeddings_concat: - emb = torch.cat([emb, class_emb], dim=-1) - else: - emb = emb + class_emb - - if self.config.addition_embed_type == "text": - aug_emb = self.add_embedding(encoder_hidden_states) - elif self.config.addition_embed_type == "text_image": - # Kandinsky 2.1 - style - if "image_embeds" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `addition_embed_type` set to 'text_image' which requires the keyword argument `image_embeds` to be passed in `added_cond_kwargs`" - ) - - image_embs = added_cond_kwargs.get("image_embeds") - text_embs = added_cond_kwargs.get("text_embeds", encoder_hidden_states) - aug_emb = self.add_embedding(text_embs, image_embs) - elif self.config.addition_embed_type == "text_time": - # SDXL - style - if "text_embeds" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `addition_embed_type` set to 'text_time' which requires the keyword argument `text_embeds` to be passed in `added_cond_kwargs`" - ) - text_embeds = added_cond_kwargs.get("text_embeds") - if "time_ids" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `addition_embed_type` set to 'text_time' which requires the keyword argument `time_ids` to be passed in `added_cond_kwargs`" - ) - time_ids = added_cond_kwargs.get("time_ids") - time_embeds = self.add_time_proj(time_ids.flatten()) - time_embeds = time_embeds.reshape((text_embeds.shape[0], -1)) - - add_embeds = torch.concat([text_embeds, time_embeds], dim=-1) - add_embeds = add_embeds.to(emb.dtype) - aug_emb = self.add_embedding(add_embeds) - elif self.config.addition_embed_type == "image": - # Kandinsky 2.2 - style - if "image_embeds" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `addition_embed_type` set to 'image' which requires the keyword argument `image_embeds` to be passed in `added_cond_kwargs`" - ) - image_embs = added_cond_kwargs.get("image_embeds") - aug_emb = self.add_embedding(image_embs) - elif self.config.addition_embed_type == "image_hint": - # Kandinsky 2.2 - style - if "image_embeds" not in added_cond_kwargs or "hint" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `addition_embed_type` set to 'image_hint' which requires the keyword arguments `image_embeds` and `hint` to be passed in `added_cond_kwargs`" - ) - image_embs = added_cond_kwargs.get("image_embeds") - hint = added_cond_kwargs.get("hint") - aug_emb, hint = self.add_embedding(image_embs, hint) - sample = torch.cat([sample, hint], dim=1) - - emb = emb + aug_emb if aug_emb is not None else emb - - if self.time_embed_act is not None: - emb = self.time_embed_act(emb) - - if self.encoder_hid_proj is not None and self.config.encoder_hid_dim_type == "text_proj": - encoder_hidden_states = self.encoder_hid_proj(encoder_hidden_states) - elif self.encoder_hid_proj is not None and self.config.encoder_hid_dim_type == "text_image_proj": - # Kadinsky 2.1 - style - if "image_embeds" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `encoder_hid_dim_type` set to 'text_image_proj' which requires the keyword argument `image_embeds` to be passed in `added_conditions`" - ) - - image_embeds = added_cond_kwargs.get("image_embeds") - encoder_hidden_states = self.encoder_hid_proj(encoder_hidden_states, image_embeds) - elif self.encoder_hid_proj is not None and self.config.encoder_hid_dim_type == "image_proj": - # Kandinsky 2.2 - style - if "image_embeds" not in added_cond_kwargs: - raise ValueError( - f"{self.__class__} has the config param `encoder_hid_dim_type` set to 'image_proj' which requires the keyword argument `image_embeds` to be passed in `added_conditions`" - ) - image_embeds = added_cond_kwargs.get("image_embeds") - encoder_hidden_states = self.encoder_hid_proj(image_embeds) - # 2. pre-process - sample = self.conv_in(sample) - - # 2.5 GLIGEN position net - if cross_attention_kwargs is not None and cross_attention_kwargs.get("gligen", None) is not None: - cross_attention_kwargs = cross_attention_kwargs.copy() - gligen_args = cross_attention_kwargs.pop("gligen") - cross_attention_kwargs["gligen"] = {"objs": self.position_net(**gligen_args)} - - # 3. down - - if return_encoder_feature: - encoder_feature = [] - - is_controlnet = mid_block_additional_residual is not None and down_block_additional_residuals is not None - is_adapter = mid_block_additional_residual is None and down_block_additional_residuals is not None - is_bridge_encoder = down_bridge_residuals is not None - is_bridge = up_block_additional_residual is not None - - down_block_res_samples = (sample,) - - - - for downsample_block in self.down_blocks: - if hasattr(downsample_block, "has_cross_attention") and downsample_block.has_cross_attention: - # For t2i-adapter CrossAttnDownBlock2D - additional_residuals = {} - if is_adapter and len(down_block_additional_residuals) > 0: - additional_residuals["additional_residuals"] = down_block_additional_residuals.pop(0) - - sample, res_samples = downsample_block( - hidden_states=sample, - temb=emb, - encoder_hidden_states=encoder_hidden_states, - attention_mask=attention_mask, - cross_attention_kwargs=cross_attention_kwargs, - encoder_attention_mask=encoder_attention_mask, - **additional_residuals, - ) - - if is_bridge_encoder and len(down_bridge_residuals) > 0: - sample += down_bridge_residuals.pop(0) - - if return_encoder_feature: - encoder_feature.append(sample) - else: - sample, res_samples = downsample_block(hidden_states=sample, temb=emb) - - if is_adapter and len(down_block_additional_residuals) > 0: - sample += down_block_additional_residuals.pop(0) - - if is_bridge_encoder and len(down_bridge_residuals) > 0: - sample += down_bridge_residuals.pop(0) - - down_block_res_samples += res_samples - - - if is_controlnet: - new_down_block_res_samples = () - - for down_block_res_sample, down_block_additional_residual in zip( - down_block_res_samples, down_block_additional_residuals - ): - down_block_res_sample = down_block_res_sample + down_block_additional_residual - new_down_block_res_samples = new_down_block_res_samples + (down_block_res_sample,) - - down_block_res_samples = new_down_block_res_samples - - if return_encoder_feature and return_early: - return encoder_feature - - # 4. mid - if self.mid_block is not None: - sample = self.mid_block( - sample, - emb, - encoder_hidden_states=encoder_hidden_states, - attention_mask=attention_mask, - cross_attention_kwargs=cross_attention_kwargs, - encoder_attention_mask=encoder_attention_mask, - ) - - if is_controlnet: - sample = sample + mid_block_additional_residual - - ################# bridge usage ################# - - if is_bridge: - if up_block_additional_residual[0].shape != sample.shape: - pass - elif fusion_guidance_scale is not None: - sample = sample + fusion_guidance_scale * (up_block_additional_residual.pop(0) - sample) - else: - sample += up_block_additional_residual.pop(0) - ################# end of bridge usage ################# - # 5. up - - for i, upsample_block in enumerate(self.up_blocks): - is_final_block = i == len(self.up_blocks) - 1 - - res_samples = down_block_res_samples[-len(upsample_block.resnets) :] - down_block_res_samples = down_block_res_samples[: -len(upsample_block.resnets)] - - # if we have not reached the final block and need to forward the - # upsample size, we do it here - if not is_final_block and forward_upsample_size: - upsample_size = down_block_res_samples[-1].shape[2:] - - if hasattr(upsample_block, "has_cross_attention") and upsample_block.has_cross_attention: - sample = upsample_block( - hidden_states=sample, - temb=emb, - res_hidden_states_tuple=res_samples, - encoder_hidden_states=encoder_hidden_states, - cross_attention_kwargs=cross_attention_kwargs, - upsample_size=upsample_size, - attention_mask=attention_mask, - encoder_attention_mask=encoder_attention_mask, - ) - else: - sample = upsample_block( - hidden_states=sample, temb=emb, res_hidden_states_tuple=res_samples, upsample_size=upsample_size - ) - - - ################# bridge usage ################# - if is_bridge and len(up_block_additional_residual) > 0: - if sample.shape != up_block_additional_residual[0].shape: - pass - elif fusion_guidance_scale is not None: - sample = sample + fusion_guidance_scale * (up_block_additional_residual.pop(0) - sample) - else: - sample += up_block_additional_residual.pop(0) - - if return_hidden_states and i > 0: - # Collect last three up blk in SD1.5 - hidden_states.append(sample) - ################# end of bridge usage ################# - - # 6. post-process - if self.conv_norm_out: - sample = self.conv_norm_out(sample) - sample = self.conv_act(sample) - sample = self.conv_out(sample) - - if not return_dict: - return (sample,) - - return UNet2DConditionOutput(sample=sample, hidden_states=hidden_states if return_hidden_states else None, - encoder_feature=encoder_feature if return_encoder_feature else None) diff --git a/scripts/xadapter/utils.py b/scripts/xadapter/utils.py deleted file mode 100644 index 817491647..000000000 --- a/scripts/xadapter/utils.py +++ /dev/null @@ -1,14 +0,0 @@ -import os -import imageio -import numpy as np -from typing import Union - -import torch -import torchvision -import torch.distributed as dist - -from safetensors import safe_open -from tqdm import tqdm -from einops import rearrange -from model.convert_from_ckpt import convert_ldm_unet_checkpoint, convert_ldm_clip_checkpoint, convert_ldm_vae_checkpoint -# from animatediff.utils.convert_lora_safetensor_to_diffusers import convert_lora, convert_motion_lora_ckpt_to_diffusers diff --git a/scripts/xadapter/xadapter_hijacks.py b/scripts/xadapter/xadapter_hijacks.py deleted file mode 100644 index 2d1c1d327..000000000 --- a/scripts/xadapter/xadapter_hijacks.py +++ /dev/null @@ -1,58 +0,0 @@ -import torch -from torch import nn - - -class FourierEmbedder(nn.Module): - def __init__(self, num_freqs=64, temperature=100): - super().__init__() - - self.num_freqs = num_freqs - self.temperature = temperature - - freq_bands = temperature ** (torch.arange(num_freqs) / num_freqs) - freq_bands = freq_bands[None, None, None] - self.register_buffer("freq_bands", freq_bands, persistent=False) - - def __call__(self, x): - x = self.freq_bands * x.unsqueeze(-1) - return torch.stack((x.sin(), x.cos()), dim=-1).permute(0, 1, 3, 4, 2).reshape(*x.shape[:2], -1) - - -class PositionNet(nn.Module): - def __init__(self, positive_len, out_dim, fourier_freqs=8): - super().__init__() - self.positive_len = positive_len - self.out_dim = out_dim - - self.fourier_embedder = FourierEmbedder(num_freqs=fourier_freqs) - self.position_dim = fourier_freqs * 2 * 4 # 2: sin/cos, 4: xyxy - - if isinstance(out_dim, tuple): - out_dim = out_dim[0] - self.linears = nn.Sequential( - nn.Linear(self.positive_len + self.position_dim, 512), - nn.SiLU(), - nn.Linear(512, 512), - nn.SiLU(), - nn.Linear(512, out_dim), - ) - - self.null_positive_feature = torch.nn.Parameter(torch.zeros([self.positive_len])) - self.null_position_feature = torch.nn.Parameter(torch.zeros([self.position_dim])) - - def forward(self, boxes, masks, positive_embeddings): - masks = masks.unsqueeze(-1) - - # embedding position (it may includes padding as placeholder) - xyxy_embedding = self.fourier_embedder(boxes) # B*N*4 -> B*N*C - - # learnable null embedding - positive_null = self.null_positive_feature.view(1, 1, -1) - xyxy_null = self.null_position_feature.view(1, 1, -1) - - # replace padding with learnable null embedding - positive_embeddings = positive_embeddings * masks + (1 - masks) * positive_null - xyxy_embedding = xyxy_embedding * masks + (1 - masks) * xyxy_null - - objs = self.linears(torch.cat([positive_embeddings, xyxy_embedding], dim=-1)) - return objs diff --git a/scripts/xadapter_ext.py b/scripts/xadapter_ext.py deleted file mode 100644 index d4e05b501..000000000 --- a/scripts/xadapter_ext.py +++ /dev/null @@ -1,149 +0,0 @@ -# https://github.com/showlab/X-Adapter - -import torch -import diffusers -import gradio as gr -import huggingface_hub as hf -from modules import errors, shared, devices, scripts_manager, processing, sd_models, sd_samplers -from modules.logger import log - - -adapter = None - - -class Script(scripts_manager.Script): - def title(self): - return 'X-Adapter' - - def show(self, is_img2img): - return False - - def ui(self, _is_img2img): - with gr.Row(): - gr.HTML('  X-Adapter
') - with gr.Row(): - model = gr.Dropdown(label='Adapter model', choices=['None'] + sd_models.checkpoint_titles(), value='None') - sampler = gr.Dropdown(label='Adapter sampler', choices=[s.name for s in sd_samplers.samplers], value='Default') - with gr.Row(): - width = gr.Slider(label='Adapter width', minimum=64, maximum=2048, step=8, value=1024) - height = gr.Slider(label='Adapter height', minimum=64, maximum=2048, step=8, value=1024) - with gr.Row(): - start = gr.Slider(label='Adapter start', minimum=0.0, maximum=1.0, step=0.01, value=0.5) - scale = gr.Slider(label='Adapter scale', minimum=0.0, maximum=1.0, step=0.01, value=1.0) - with gr.Row(): - lora = gr.Textbox('', label='Adapter LoRA', default='') - return model, sampler, width, height, start, scale, lora - - def run(self, p: processing.StableDiffusionProcessing, model, sampler, width, height, start, scale, lora): # pylint: disable=arguments-differ, unused-argument - from scripts.xadapter.xadapter_hijacks import PositionNet # pylint: disable=no-name-in-module - diffusers.models.embeddings.PositionNet = PositionNet # patch diffusers==0.26 from diffusers==0.20 - from scripts.xadapter.adapter import Adapter_XL # pylint: disable=no-name-in-module - from scripts.xadapter.pipeline_sd_xl_adapter import StableDiffusionXLAdapterPipeline # pylint: disable=no-name-in-module - from scripts.xadapter.unet_adapter import UNet2DConditionModel as UNet2DConditionModelAdapter # pylint: disable=no-name-in-module - - global adapter # pylint: disable=global-statement - if model == 'None': - return - else: - shared.opts.sd_model_refiner = model - if shared.sd_model_type != 'sdxl': - log.error(f'X-Adapter: incorrect base model: {shared.sd_model.__class__.__name__}') - return - - if adapter is None: - log.debug('X-Adapter: adapter loading') - adapter = Adapter_XL() - adapter_path = hf.hf_hub_download(repo_id='Lingmin-Ran/X-Adapter', filename='X_Adapter_v1.bin') - adapter_dict = torch.load(adapter_path) - adapter.load_state_dict(adapter_dict) - try: - if adapter is not None: - sd_models.move_model(adapter, devices.device) - except Exception: - pass - if adapter is None: - log.error('X-Adapter: adapter loading failed') - return - - sd_models.unload_model_weights(op='model') - sd_models.unload_model_weights(op='refiner') - orig_unetcondmodel = diffusers.models.unets.unet_2d_condition.UNet2DConditionModel - diffusers.models.UNet2DConditionModel = UNet2DConditionModelAdapter # patch diffusers with x-adapter - diffusers.models.unets.unet_2d_condition.UNet2DConditionModel = UNet2DConditionModelAdapter # patch diffusers with x-adapter - sd_models.reload_model_weights(op='model') - sd_models.reload_model_weights(op='refiner') - diffusers.models.unets.unet_2d_condition.UNet2DConditionModel = orig_unetcondmodel # unpatch diffusers - diffusers.models.UNet2DConditionModel = orig_unetcondmodel # unpatch diffusers - - if shared.sd_refiner_type != 'sd': - log.error(f'X-Adapter: incorrect adapter model: {shared.sd_model.__class__.__name__}') - return - - # backup pipeline and params - orig_pipeline = shared.sd_model - orig_prompt_attention = shared.opts.prompt_attention - pipe = None - - try: - log.debug('X-Adapter: creating pipeline') - pipe = StableDiffusionXLAdapterPipeline( - vae=shared.sd_model.vae, - text_encoder=shared.sd_model.text_encoder, - text_encoder_2=shared.sd_model.text_encoder_2, - tokenizer=shared.sd_model.tokenizer, - tokenizer_2=shared.sd_model.tokenizer_2, - unet=shared.sd_model.unet, - scheduler=shared.sd_model.scheduler, - vae_sd1_5=shared.sd_refiner.vae, - text_encoder_sd1_5=shared.sd_refiner.text_encoder, - tokenizer_sd1_5=shared.sd_refiner.tokenizer, - unet_sd1_5=shared.sd_refiner.unet, - scheduler_sd1_5=shared.sd_refiner.scheduler, - adapter=adapter, - ) - sd_models.copy_diffuser_options(pipe, shared.sd_model) - sd_models.set_diffuser_options(pipe) - try: - pipe.to(device=devices.device, dtype=devices.dtype) - except Exception: - pass - shared.opts.data['prompt_attention'] = 'fixed' - prompt = shared.prompt_styles.apply_styles_to_prompt(p.prompt, p.styles) - negative = shared.prompt_styles.apply_negative_styles_to_prompt(p.negative_prompt, p.styles) - shared.prompt_styles.apply_styles_to_extra(p) - p.styles = [] - p.task_args['prompt'] = prompt - p.task_args['negative_prompt'] = negative - p.task_args['prompt_sd1_5'] = prompt - p.task_args['width_sd1_5'] = width - p.task_args['height_sd1_5'] = height - p.task_args['adapter_guidance_start'] = start - p.task_args['adapter_condition_scale'] = scale - p.task_args['fusion_guidance_scale'] = 1.0 # ??? - if sampler != 'Default': - pipe.scheduler_sd1_5 = sd_samplers.create_sampler(sampler, shared.sd_refiner) - else: - pipe.scheduler = diffusers.DPMSolverMultistepScheduler.from_config(pipe.scheduler.config) - pipe.scheduler_sd1_5 = diffusers.DPMSolverMultistepScheduler.from_config(pipe.scheduler_sd1_5.config) - pipe.scheduler_sd1_5.config.timestep_spacing = "leading" - log.debug(f'X-Adapter: pipeline={pipe.__class__.__name__} args={p.task_args}') - shared.sd_model = pipe - except Exception as e: - log.error(f'X-Adapter: pipeline creation failed: {e}') - errors.display(e, 'X-Adapter: pipeline creation failed') - shared.sd_model = orig_pipeline - - # run pipeline - processed: processing.Processed = processing.process_images(p) # runs processing using main loop - - # restore pipeline and params - try: - if adapter is not None: - adapter.to(devices.cpu) - except Exception: - pass - pipe = None - shared.opts.data['prompt_attention'] = orig_prompt_attention - shared.sd_model = orig_pipeline - devices.torch_gc() - return processed