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Fix head_to_batch_dim for IPAdapterAttnProcessor #7077

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Merged
merged 2 commits into from
Feb 25, 2024
+7 −3
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Fix head_to_batch_dim for IPAdapterAttnProcessor #7077

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f664e9b
Fix IPAdapterAttnProcessor
fabiorigano Feb 24, 2024
615c23e
Fix batch_to_head_dim and revert reshape
fabiorigano Feb 24, 2024
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10 changes: 7 additions & 3 deletions src/diffusers/models/attention_processor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -559,12 +559,16 @@ def head_to_batch_dim(self, tensor: torch.Tensor, out_dim: int = 3) -> torch.Ten
`torch.Tensor`: The reshaped tensor.
"""
head_size = self.heads
batch_size, seq_len, dim = tensor.shape
tensor = tensor.reshape(batch_size, seq_len, head_size, dim // head_size)
if tensor.ndim == 3:
batch_size, seq_len, dim = tensor.shape
extra_dim = 1
else:
batch_size, extra_dim, seq_len, dim = tensor.shape
tensor = tensor.reshape(batch_size, seq_len * extra_dim, head_size, dim // head_size)
tensor = tensor.permute(0, 2, 1, 3)

if out_dim == 3:
tensor = tensor.reshape(batch_size * head_size, seq_len, dim // head_size)
tensor = tensor.reshape(batch_size * head_size, seq_len * extra_dim, dim // head_size)

return tensor

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