28 lines
1.2 KiB
Python
28 lines
1.2 KiB
Python
from comfy import sd1_clip
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import torch
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import os
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class SD2ClipModel(sd1_clip.SD1ClipModel):
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def __init__(self, arch="ViT-H-14", device="cpu", max_length=77, freeze=True, layer="penultimate", layer_idx=None, textmodel_path=None):
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if layer == "penultimate":
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layer="hidden"
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layer_idx=23
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textmodel_json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "sd2_clip_config.json")
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super().__init__(device=device, freeze=freeze, layer=layer, layer_idx=layer_idx, textmodel_json_config=textmodel_json_config, textmodel_path=textmodel_path)
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self.empty_tokens = [[49406] + [49407] + [0] * 75]
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def clip_layer(self, layer_idx):
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if layer_idx < 0:
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layer_idx -= 1 #The real last layer of SD2.x clip is the penultimate one. The last one might contain garbage.
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if abs(layer_idx) >= 24:
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self.layer = "hidden"
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self.layer_idx = -2
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else:
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self.layer = "hidden"
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self.layer_idx = layer_idx
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class SD2Tokenizer(sd1_clip.SD1Tokenizer):
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def __init__(self, tokenizer_path=None, embedding_directory=None):
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super().__init__(tokenizer_path, pad_with_end=False, embedding_directory=embedding_directory, embedding_size=1024)
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