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from .svd_image_encoder import SVDImageEncoder |
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from .sdxl_ipadapter import IpAdapterImageProjModel, IpAdapterModule, SDXLIpAdapterStateDictConverter |
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from transformers import CLIPImageProcessor |
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import torch |
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class IpAdapterCLIPImageEmbedder(SVDImageEncoder): |
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def __init__(self): |
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super().__init__() |
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self.image_processor = CLIPImageProcessor() |
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def forward(self, image): |
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pixel_values = self.image_processor(images=image, return_tensors="pt").pixel_values |
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pixel_values = pixel_values.to(device=self.embeddings.class_embedding.device, dtype=self.embeddings.class_embedding.dtype) |
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return super().forward(pixel_values) |
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class SDIpAdapter(torch.nn.Module): |
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def __init__(self): |
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super().__init__() |
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shape_list = [(768, 320)] * 2 + [(768, 640)] * 2 + [(768, 1280)] * 5 + [(768, 640)] * 3 + [(768, 320)] * 3 + [(768, 1280)] * 1 |
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self.ipadapter_modules = torch.nn.ModuleList([IpAdapterModule(*shape) for shape in shape_list]) |
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self.image_proj = IpAdapterImageProjModel(cross_attention_dim=768, clip_embeddings_dim=1024, clip_extra_context_tokens=4) |
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self.set_full_adapter() |
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def set_full_adapter(self): |
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block_ids = [1, 4, 9, 12, 17, 20, 40, 43, 46, 50, 53, 56, 60, 63, 66, 29] |
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self.call_block_id = {(i, 0): j for j, i in enumerate(block_ids)} |
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def set_less_adapter(self): |
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self.set_full_adapter() |
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def forward(self, hidden_states, scale=1.0): |
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hidden_states = self.image_proj(hidden_states) |
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hidden_states = hidden_states.view(1, -1, hidden_states.shape[-1]) |
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ip_kv_dict = {} |
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for (block_id, transformer_id) in self.call_block_id: |
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ipadapter_id = self.call_block_id[(block_id, transformer_id)] |
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ip_k, ip_v = self.ipadapter_modules[ipadapter_id](hidden_states) |
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if block_id not in ip_kv_dict: |
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ip_kv_dict[block_id] = {} |
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ip_kv_dict[block_id][transformer_id] = { |
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"ip_k": ip_k, |
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"ip_v": ip_v, |
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"scale": scale |
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} |
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return ip_kv_dict |
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@staticmethod |
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def state_dict_converter(): |
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return SDIpAdapterStateDictConverter() |
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class SDIpAdapterStateDictConverter(SDXLIpAdapterStateDictConverter): |
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def __init__(self): |
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pass |
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