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34 lines
1.4 KiB
34 lines
1.4 KiB
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): |
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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, textmodel_json_config=textmodel_json_config) |
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self.empty_tokens = [[49406] + [49407] + [0] * 75] |
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if layer == "last": |
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pass |
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elif layer == "penultimate": |
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layer_idx = -1 |
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self.clip_layer(layer_idx) |
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elif self.layer == "hidden": |
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assert layer_idx is not None |
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assert abs(layer_idx) < 24 |
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self.clip_layer(layer_idx) |
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else: |
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raise NotImplementedError() |
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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)
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