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https://github.com/modelscope/DiffSynth-Studio.git
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support HunyuanDiT
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Artiprocher
@@ -1,176 +1,3 @@
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from transformers import CLIPTokenizer, AutoTokenizer
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from ..models import SDTextEncoder, SDXLTextEncoder, SDXLTextEncoder2, ModelManager
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import torch, os
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def tokenize_long_prompt(tokenizer, prompt):
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# Get model_max_length from self.tokenizer
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length = tokenizer.model_max_length
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# To avoid the warning. set self.tokenizer.model_max_length to +oo.
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tokenizer.model_max_length = 99999999
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# Tokenize it!
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input_ids = tokenizer(prompt, return_tensors="pt").input_ids
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# Determine the real length.
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max_length = (input_ids.shape[1] + length - 1) // length * length
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# Restore tokenizer.model_max_length
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tokenizer.model_max_length = length
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# Tokenize it again with fixed length.
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input_ids = tokenizer(
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prompt,
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return_tensors="pt",
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padding="max_length",
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max_length=max_length,
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truncation=True
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).input_ids
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# Reshape input_ids to fit the text encoder.
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num_sentence = input_ids.shape[1] // length
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input_ids = input_ids.reshape((num_sentence, length))
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return input_ids
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class BeautifulPrompt:
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def __init__(self, tokenizer_path="configs/beautiful_prompt/tokenizer", model=None):
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self.tokenizer = AutoTokenizer.from_pretrained(tokenizer_path)
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self.model = model
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self.template = 'Instruction: Give a simple description of the image to generate a drawing prompt.\nInput: {raw_prompt}\nOutput:'
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def __call__(self, raw_prompt):
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model_input = self.template.format(raw_prompt=raw_prompt)
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input_ids = self.tokenizer.encode(model_input, return_tensors='pt').to(self.model.device)
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outputs = self.model.generate(
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input_ids,
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max_new_tokens=384,
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do_sample=True,
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temperature=0.9,
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top_k=50,
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top_p=0.95,
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repetition_penalty=1.1,
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num_return_sequences=1
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)
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prompt = raw_prompt + ", " + self.tokenizer.batch_decode(
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outputs[:, input_ids.size(1):],
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skip_special_tokens=True
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)[0].strip()
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return prompt
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class Translator:
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def __init__(self, tokenizer_path="configs/translator/tokenizer", model=None):
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self.tokenizer = AutoTokenizer.from_pretrained(tokenizer_path)
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self.model = model
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def __call__(self, prompt):
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input_ids = self.tokenizer.encode(prompt, return_tensors='pt').to(self.model.device)
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output_ids = self.model.generate(input_ids)
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prompt = self.tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0]
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return prompt
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class Prompter:
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def __init__(self):
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self.tokenizer: CLIPTokenizer = None
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self.keyword_dict = {}
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self.translator: Translator = None
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self.beautiful_prompt: BeautifulPrompt = None
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def load_textual_inversion(self, textual_inversion_dict):
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self.keyword_dict = {}
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additional_tokens = []
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for keyword in textual_inversion_dict:
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tokens, _ = textual_inversion_dict[keyword]
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additional_tokens += tokens
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self.keyword_dict[keyword] = " " + " ".join(tokens) + " "
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self.tokenizer.add_tokens(additional_tokens)
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def load_beautiful_prompt(self, model, model_path):
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model_folder = os.path.dirname(model_path)
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self.beautiful_prompt = BeautifulPrompt(tokenizer_path=model_folder, model=model)
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if model_folder.endswith("v2"):
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self.beautiful_prompt.template = """Converts a simple image description into a prompt. \
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Prompts are formatted as multiple related tags separated by commas, plus you can use () to increase the weight, [] to decrease the weight, \
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or use a number to specify the weight. You should add appropriate words to make the images described in the prompt more aesthetically pleasing, \
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but make sure there is a correlation between the input and output.\n\
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### Input: {raw_prompt}\n### Output:"""
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def load_translator(self, model, model_path):
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model_folder = os.path.dirname(model_path)
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self.translator = Translator(tokenizer_path=model_folder, model=model)
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def load_from_model_manager(self, model_manager: ModelManager):
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self.load_textual_inversion(model_manager.textual_inversion_dict)
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if "translator" in model_manager.model:
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self.load_translator(model_manager.model["translator"], model_manager.model_path["translator"])
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if "beautiful_prompt" in model_manager.model:
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self.load_beautiful_prompt(model_manager.model["beautiful_prompt"], model_manager.model_path["beautiful_prompt"])
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def process_prompt(self, prompt, positive=True):
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for keyword in self.keyword_dict:
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if keyword in prompt:
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prompt = prompt.replace(keyword, self.keyword_dict[keyword])
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if positive and self.translator is not None:
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prompt = self.translator(prompt)
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print(f"Your prompt is translated: \"{prompt}\"")
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if positive and self.beautiful_prompt is not None:
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prompt = self.beautiful_prompt(prompt)
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print(f"Your prompt is refined by BeautifulPrompt: \"{prompt}\"")
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return prompt
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class SDPrompter(Prompter):
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def __init__(self, tokenizer_path="configs/stable_diffusion/tokenizer"):
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super().__init__()
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self.tokenizer = CLIPTokenizer.from_pretrained(tokenizer_path)
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def encode_prompt(self, text_encoder: SDTextEncoder, prompt, clip_skip=1, device="cuda", positive=True):
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prompt = self.process_prompt(prompt, positive=positive)
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input_ids = tokenize_long_prompt(self.tokenizer, prompt).to(device)
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prompt_emb = text_encoder(input_ids, clip_skip=clip_skip)
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prompt_emb = prompt_emb.reshape((1, prompt_emb.shape[0]*prompt_emb.shape[1], -1))
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return prompt_emb
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class SDXLPrompter(Prompter):
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def __init__(
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self,
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tokenizer_path="configs/stable_diffusion/tokenizer",
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tokenizer_2_path="configs/stable_diffusion_xl/tokenizer_2"
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):
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super().__init__()
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self.tokenizer = CLIPTokenizer.from_pretrained(tokenizer_path)
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self.tokenizer_2 = CLIPTokenizer.from_pretrained(tokenizer_2_path)
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def encode_prompt(
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self,
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text_encoder: SDXLTextEncoder,
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text_encoder_2: SDXLTextEncoder2,
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prompt,
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clip_skip=1,
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clip_skip_2=2,
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positive=True,
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device="cuda"
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):
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prompt = self.process_prompt(prompt, positive=positive)
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# 1
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input_ids = tokenize_long_prompt(self.tokenizer, prompt).to(device)
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prompt_emb_1 = text_encoder(input_ids, clip_skip=clip_skip)
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# 2
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input_ids_2 = tokenize_long_prompt(self.tokenizer_2, prompt).to(device)
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add_text_embeds, prompt_emb_2 = text_encoder_2(input_ids_2, clip_skip=clip_skip_2)
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# Merge
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prompt_emb = torch.concatenate([prompt_emb_1, prompt_emb_2], dim=-1)
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# For very long prompt, we only use the first 77 tokens to compute `add_text_embeds`.
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add_text_embeds = add_text_embeds[0:1]
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prompt_emb = prompt_emb.reshape((1, prompt_emb.shape[0]*prompt_emb.shape[1], -1))
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return add_text_embeds, prompt_emb
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from .sd_prompter import SDPrompter
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from .sdxl_prompter import SDXLPrompter
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from .hunyuan_dit_prompter import HunyuanDiTPrompter
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