22 lines
911 B
Python
22 lines
911 B
Python
import torch
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import comfy.ops
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def pad_to_patch_size(img, patch_size=(2, 2), padding_mode="circular"):
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if padding_mode == "circular" and torch.jit.is_tracing() or torch.jit.is_scripting():
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padding_mode = "reflect"
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pad_h = (patch_size[0] - img.shape[-2] % patch_size[0]) % patch_size[0]
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pad_w = (patch_size[1] - img.shape[-1] % patch_size[1]) % patch_size[1]
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return torch.nn.functional.pad(img, (0, pad_w, 0, pad_h), mode=padding_mode)
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try:
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rms_norm_torch = torch.nn.functional.rms_norm
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except:
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rms_norm_torch = None
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def rms_norm(x, weight, eps=1e-6):
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if rms_norm_torch is not None:
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return rms_norm_torch(x, weight.shape, weight=comfy.ops.cast_to(weight, dtype=x.dtype, device=x.device), eps=eps)
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else:
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rrms = torch.rsqrt(torch.mean(x**2, dim=-1, keepdim=True) + eps)
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return (x * rrms) * comfy.ops.cast_to(weight, dtype=x.dtype, device=x.device)
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