151 lines
6.3 KiB
Python
151 lines
6.3 KiB
Python
from comfy import sd1_clip
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from comfy import sdxl_clip
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from transformers import T5TokenizerFast
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import comfy.t5
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import torch
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import os
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import comfy.model_management
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import logging
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class T5XXLModel(sd1_clip.SDClipModel):
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def __init__(self, device="cpu", layer="last", layer_idx=None, dtype=None):
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textmodel_json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "t5_config_xxl.json")
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super().__init__(device=device, layer=layer, layer_idx=layer_idx, textmodel_json_config=textmodel_json_config, dtype=dtype, special_tokens={"end": 1, "pad": 0}, model_class=comfy.t5.T5)
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class T5XXLTokenizer(sd1_clip.SDTokenizer):
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def __init__(self, embedding_directory=None):
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tokenizer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "t5_tokenizer")
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super().__init__(tokenizer_path, pad_with_end=False, embedding_size=4096, embedding_key='t5xxl', tokenizer_class=T5TokenizerFast, has_start_token=False, pad_to_max_length=False, max_length=99999999, min_length=77)
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class SDT5XXLTokenizer(sd1_clip.SD1Tokenizer):
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def __init__(self, embedding_directory=None):
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super().__init__(embedding_directory=embedding_directory, clip_name="t5xxl", tokenizer=T5XXLTokenizer)
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class SDT5XXLModel(sd1_clip.SD1ClipModel):
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def __init__(self, device="cpu", dtype=None, **kwargs):
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super().__init__(device=device, dtype=dtype, clip_name="t5xxl", clip_model=T5XXLModel, **kwargs)
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class SD3Tokenizer:
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def __init__(self, embedding_directory=None):
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self.clip_l = sd1_clip.SDTokenizer(embedding_directory=embedding_directory)
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self.clip_g = sdxl_clip.SDXLClipGTokenizer(embedding_directory=embedding_directory)
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self.t5xxl = T5XXLTokenizer(embedding_directory=embedding_directory)
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def tokenize_with_weights(self, text:str, return_word_ids=False):
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out = {}
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out["g"] = self.clip_g.tokenize_with_weights(text, return_word_ids)
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out["l"] = self.clip_l.tokenize_with_weights(text, return_word_ids)
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out["t5xxl"] = self.t5xxl.tokenize_with_weights(text, return_word_ids)
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return out
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def untokenize(self, token_weight_pair):
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return self.clip_g.untokenize(token_weight_pair)
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class SD3ClipModel(torch.nn.Module):
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def __init__(self, clip_l=True, clip_g=True, t5=True, dtype_t5=None, device="cpu", dtype=None):
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super().__init__()
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self.dtypes = set()
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if clip_l:
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self.clip_l = sd1_clip.SDClipModel(layer="hidden", layer_idx=-2, device=device, dtype=dtype, layer_norm_hidden_state=False, return_projected_pooled=False)
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self.dtypes.add(dtype)
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else:
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self.clip_l = None
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if clip_g:
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self.clip_g = sdxl_clip.SDXLClipG(device=device, dtype=dtype)
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self.dtypes.add(dtype)
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else:
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self.clip_g = None
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if t5:
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if dtype_t5 is None:
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dtype_t5 = dtype
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elif comfy.model_management.dtype_size(dtype_t5) > comfy.model_management.dtype_size(dtype):
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dtype_t5 = dtype
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if not comfy.model_management.supports_cast(device, dtype_t5):
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dtype_t5 = dtype
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self.t5xxl = T5XXLModel(device=device, dtype=dtype_t5)
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self.dtypes.add(dtype_t5)
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else:
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self.t5xxl = None
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logging.debug("Created SD3 text encoder with: clip_l {}, clip_g {}, t5xxl {}:{}".format(clip_l, clip_g, t5, dtype_t5))
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def set_clip_options(self, options):
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if self.clip_l is not None:
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self.clip_l.set_clip_options(options)
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if self.clip_g is not None:
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self.clip_g.set_clip_options(options)
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if self.t5xxl is not None:
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self.t5xxl.set_clip_options(options)
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def reset_clip_options(self):
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if self.clip_l is not None:
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self.clip_l.reset_clip_options()
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if self.clip_g is not None:
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self.clip_g.reset_clip_options()
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if self.t5xxl is not None:
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self.t5xxl.reset_clip_options()
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def encode_token_weights(self, token_weight_pairs):
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token_weight_pairs_l = token_weight_pairs["l"]
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token_weight_pairs_g = token_weight_pairs["g"]
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token_weight_pars_t5 = token_weight_pairs["t5xxl"]
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lg_out = None
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pooled = None
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out = None
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if len(token_weight_pairs_g) > 0 or len(token_weight_pairs_l) > 0:
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if self.clip_l is not None:
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lg_out, l_pooled = self.clip_l.encode_token_weights(token_weight_pairs_l)
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else:
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l_pooled = torch.zeros((1, 768), device=comfy.model_management.intermediate_device())
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if self.clip_g is not None:
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g_out, g_pooled = self.clip_g.encode_token_weights(token_weight_pairs_g)
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if lg_out is not None:
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lg_out = torch.cat([lg_out, g_out], dim=-1)
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else:
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lg_out = torch.nn.functional.pad(g_out, (768, 0))
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else:
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g_out = None
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g_pooled = torch.zeros((1, 1280), device=comfy.model_management.intermediate_device())
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if lg_out is not None:
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lg_out = torch.nn.functional.pad(lg_out, (0, 4096 - lg_out.shape[-1]))
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out = lg_out
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pooled = torch.cat((l_pooled, g_pooled), dim=-1)
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if self.t5xxl is not None:
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t5_out, t5_pooled = self.t5xxl.encode_token_weights(token_weight_pars_t5)
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if lg_out is not None:
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out = torch.cat([lg_out, t5_out], dim=-2)
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else:
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out = t5_out
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if out is None:
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out = torch.zeros((1, 77, 4096), device=comfy.model_management.intermediate_device())
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if pooled is None:
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pooled = torch.zeros((1, 768 + 1280), device=comfy.model_management.intermediate_device())
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return out, pooled
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def load_sd(self, sd):
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if "text_model.encoder.layers.30.mlp.fc1.weight" in sd:
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return self.clip_g.load_sd(sd)
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elif "text_model.encoder.layers.1.mlp.fc1.weight" in sd:
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return self.clip_l.load_sd(sd)
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else:
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return self.t5xxl.load_sd(sd)
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def sd3_clip(clip_l=True, clip_g=True, t5=True, dtype_t5=None):
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class SD3ClipModel_(SD3ClipModel):
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def __init__(self, device="cpu", dtype=None):
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super().__init__(clip_l=clip_l, clip_g=clip_g, t5=t5, dtype_t5=dtype_t5, device=device, dtype=dtype)
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return SD3ClipModel_
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