212 lines
7.8 KiB
Python
212 lines
7.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright (c) Alibaba, Inc. and its affiliates.
|
|
# This file contains code that is adapted from
|
|
# https://github.com/black-forest-labs/flux.git
|
|
import torch
|
|
import transformers
|
|
from scepter.modules.model.embedder.base_embedder import BaseEmbedder
|
|
from scepter.modules.model.registry import EMBEDDERS
|
|
from scepter.modules.model.tokenizer.tokenizer_component import (
|
|
basic_clean, canonicalize, whitespace_clean)
|
|
from scepter.modules.utils.config import dict_to_yaml
|
|
from scepter.modules.utils.file_system import FS
|
|
|
|
|
|
@EMBEDDERS.register_class()
|
|
class HFEmbedder(BaseEmbedder):
|
|
para_dict = {
|
|
'HF_MODEL_CLS': {
|
|
'value': None,
|
|
'description': 'huggingface cls in transfomer'
|
|
},
|
|
'MODEL_PATH': {
|
|
'value': None,
|
|
'description': 'model folder path'
|
|
},
|
|
'HF_TOKENIZER_CLS': {
|
|
'value': None,
|
|
'description': 'huggingface cls in transfomer'
|
|
},
|
|
'TOKENIZER_PATH': {
|
|
'value': None,
|
|
'description': 'tokenizer folder path'
|
|
},
|
|
'MAX_LENGTH': {
|
|
'value': 77,
|
|
'description': 'max length of input'
|
|
},
|
|
'OUTPUT_KEY': {
|
|
'value': 'last_hidden_state',
|
|
'description': 'output key'
|
|
},
|
|
'D_TYPE': {
|
|
'value': 'float',
|
|
'description': 'dtype'
|
|
},
|
|
'BATCH_INFER': {
|
|
'value': False,
|
|
'description': 'batch infer'
|
|
}
|
|
}
|
|
para_dict.update(BaseEmbedder.para_dict)
|
|
|
|
def __init__(self, cfg, logger=None):
|
|
super().__init__(cfg, logger=logger)
|
|
hf_model_cls = cfg.get('HF_MODEL_CLS', None)
|
|
model_path = cfg.get("MODEL_PATH", None)
|
|
hf_tokenizer_cls = cfg.get('HF_TOKENIZER_CLS', None)
|
|
tokenizer_path = cfg.get('TOKENIZER_PATH', None)
|
|
self.max_length = cfg.get('MAX_LENGTH', 77)
|
|
self.output_key = cfg.get("OUTPUT_KEY", "last_hidden_state")
|
|
self.d_type = cfg.get("D_TYPE", "float")
|
|
self.clean = cfg.get("CLEAN", "whitespace")
|
|
self.batch_infer = cfg.get("BATCH_INFER", False)
|
|
self.added_identifier = cfg.get('ADDED_IDENTIFIER', None)
|
|
torch_dtype = getattr(torch, self.d_type)
|
|
|
|
assert hf_model_cls is not None and hf_tokenizer_cls is not None
|
|
assert model_path is not None and tokenizer_path is not None
|
|
with FS.get_dir_to_local_dir(tokenizer_path, wait_finish=True) as local_path:
|
|
self.tokenizer = getattr(transformers, hf_tokenizer_cls).from_pretrained(local_path,
|
|
max_length = self.max_length,
|
|
torch_dtype = torch_dtype,
|
|
additional_special_tokens=self.added_identifier)
|
|
|
|
with FS.get_dir_to_local_dir(model_path, wait_finish=True) as local_path:
|
|
self.hf_module = getattr(transformers, hf_model_cls).from_pretrained(local_path, torch_dtype = torch_dtype)
|
|
|
|
|
|
self.hf_module = self.hf_module.eval().requires_grad_(False)
|
|
|
|
def forward(self, text: list[str], return_mask = False):
|
|
batch_encoding = self.tokenizer(
|
|
text,
|
|
truncation=True,
|
|
max_length=self.max_length,
|
|
return_length=False,
|
|
return_overflowing_tokens=False,
|
|
padding="max_length",
|
|
return_tensors="pt",
|
|
)
|
|
|
|
outputs = self.hf_module(
|
|
input_ids=batch_encoding["input_ids"].to(self.hf_module.device),
|
|
attention_mask=None,
|
|
output_hidden_states=False,
|
|
)
|
|
if return_mask:
|
|
return outputs[self.output_key], batch_encoding['attention_mask'].to(self.hf_module.device)
|
|
else:
|
|
return outputs[self.output_key], None
|
|
|
|
def encode(self, text, return_mask = False):
|
|
if isinstance(text, str):
|
|
text = [text]
|
|
if self.clean:
|
|
text = [self._clean(u) for u in text]
|
|
if not self.batch_infer:
|
|
cont, mask = [], []
|
|
for tt in text:
|
|
one_cont, one_mask = self([tt], return_mask=return_mask)
|
|
cont.append(one_cont)
|
|
mask.append(one_mask)
|
|
if return_mask:
|
|
return torch.cat(cont, dim=0), torch.cat(mask, dim=0)
|
|
else:
|
|
return torch.cat(cont, dim=0)
|
|
else:
|
|
ret_data = self(text, return_mask = return_mask)
|
|
if return_mask:
|
|
return ret_data
|
|
else:
|
|
return ret_data[0]
|
|
|
|
def encode_list(self, text_list, return_mask=True):
|
|
cont_list = []
|
|
mask_list = []
|
|
for pp in text_list:
|
|
cont = self.encode(pp, return_mask=return_mask)
|
|
cont_list.append(cont[0]) if return_mask else cont_list.append(cont)
|
|
mask_list.append(cont[1]) if return_mask else mask_list.append(None)
|
|
if return_mask:
|
|
return cont_list, mask_list
|
|
else:
|
|
return cont_list
|
|
|
|
def encode_list_of_list(self, text_list, return_mask=True):
|
|
cont_list = []
|
|
mask_list = []
|
|
for pp in text_list:
|
|
cont = self.encode_list(pp, return_mask=return_mask)
|
|
cont_list.append(cont[0]) if return_mask else cont_list.append(cont)
|
|
mask_list.append(cont[1]) if return_mask else mask_list.append(None)
|
|
if return_mask:
|
|
return cont_list, mask_list
|
|
else:
|
|
return cont_list
|
|
|
|
def _clean(self, text):
|
|
if self.clean == 'whitespace':
|
|
text = whitespace_clean(basic_clean(text))
|
|
elif self.clean == 'lower':
|
|
text = whitespace_clean(basic_clean(text)).lower()
|
|
elif self.clean == 'canonicalize':
|
|
text = canonicalize(basic_clean(text))
|
|
return text
|
|
@staticmethod
|
|
def get_config_template():
|
|
return dict_to_yaml('EMBEDDER',
|
|
__class__.__name__,
|
|
HFEmbedder.para_dict,
|
|
set_name=True)
|
|
|
|
@EMBEDDERS.register_class()
|
|
class T5PlusClipFluxEmbedder(BaseEmbedder):
|
|
"""
|
|
Uses the OpenCLIP transformer encoder for text
|
|
"""
|
|
para_dict = {
|
|
'T5_MODEL': {},
|
|
'CLIP_MODEL': {}
|
|
}
|
|
|
|
def __init__(self, cfg, logger=None):
|
|
super().__init__(cfg, logger=logger)
|
|
self.t5_model = EMBEDDERS.build(cfg.T5_MODEL, logger=logger)
|
|
self.clip_model = EMBEDDERS.build(cfg.CLIP_MODEL, logger=logger)
|
|
|
|
def encode(self, text, return_mask = False):
|
|
t5_embeds = self.t5_model.encode(text, return_mask = return_mask)
|
|
clip_embeds = self.clip_model.encode(text, return_mask = return_mask)
|
|
# change embedding strategy here
|
|
return {
|
|
'context': t5_embeds,
|
|
'y': clip_embeds,
|
|
}
|
|
|
|
def encode_list(self, text, return_mask = False):
|
|
t5_embeds = self.t5_model.encode_list(text, return_mask = return_mask)
|
|
clip_embeds = self.clip_model.encode_list(text, return_mask = return_mask)
|
|
# change embedding strategy here
|
|
return {
|
|
'context': t5_embeds,
|
|
'y': clip_embeds,
|
|
}
|
|
|
|
def encode_list_of_list(self, text, return_mask = False):
|
|
t5_embeds = self.t5_model.encode_list_of_list(text, return_mask = return_mask)
|
|
clip_embeds = self.clip_model.encode_list_of_list(text, return_mask = return_mask)
|
|
# change embedding strategy here
|
|
return {
|
|
'context': t5_embeds,
|
|
'y': clip_embeds,
|
|
}
|
|
|
|
|
|
@staticmethod
|
|
def get_config_template():
|
|
return dict_to_yaml('EMBEDDER',
|
|
__class__.__name__,
|
|
T5PlusClipFluxEmbedder.para_dict,
|
|
set_name=True)
|