




"""simple docstring"""


from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


A_						=				{
    '''configuration_bridgetower''': [
        '''BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP''',
        '''BridgeTowerConfig''',
        '''BridgeTowerTextConfig''',
        '''BridgeTowerVisionConfig''',
    ],
    '''processing_bridgetower''': ['''BridgeTowerProcessor'''],
}

try:
     if not is_vision_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     A_						=				['''BridgeTowerImageProcessor''']

try:
     if not is_torch_available():
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     pass
else:
     A_						=				[
         '''BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST''',
         '''BridgeTowerForContrastiveLearning''',
         '''BridgeTowerForImageAndTextRetrieval''',
         '''BridgeTowerForMaskedLM''',
         '''BridgeTowerModel''',
         '''BridgeTowerPreTrainedModel''',
     ]


if TYPE_CHECKING:
     from .configuration_bridgetower import (
         BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP,
         BridgeTowerConfig,
         BridgeTowerTextConfig,
         BridgeTowerVisionConfig,
     )
     from .processing_bridgetower import BridgeTowerProcessor

     try:
          if not is_vision_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .image_processing_bridgetower import BridgeTowerImageProcessor

     try:
          if not is_torch_available():
               raise OptionalDependencyNotAvailable()
     except OptionalDependencyNotAvailable:
          pass
     else:
          from .modeling_bridgetower import (
              BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST,
              BridgeTowerForContrastiveLearning,
              BridgeTowerForImageAndTextRetrieval,
              BridgeTowerForMaskedLM,
              BridgeTowerModel,
              BridgeTowerPreTrainedModel,
          )


else:
     import sys

     A_						=				_LazyModule(__name__, globals()['''__file__'''], _import_structure)








"""simple docstring"""


import argparse
import json

import requests
import torch
from huggingface_hub import hf_hub_download
from PIL import Image

from transformers import ViTImageProcessor, ViTMSNConfig, ViTMSNModel
from transformers.image_utils import IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STD


torch.set_grad_enabled(False)


def 					UpperCAmelCase__       (snake_case__							:					str		,   snake_case__							:					List[str]=False    ):
  """simple docstring"""

  _snake_case							:		Optional[Any]								=  []
  for i in range(config.num_hidden_layers    ):
    # encoder layers: output projection, 2 feedforward neural networks and 2 layernorms
    rename_keys.append((F"module.blocks.{i}.norm1.weight", F"vit.encoder.layer.{i}.layernorm_before.weight")    )
    rename_keys.append((F"module.blocks.{i}.norm1.bias", F"vit.encoder.layer.{i}.layernorm_before.bias")    )
    rename_keys.append(
        (F"module.blocks.{i}.attn.proj.weight", F"vit.encoder.layer.{i}.attention.output.dense.weight")    )
    rename_keys.append((F"module.blocks.{i}.attn.proj.bias", F"vit.encoder.layer.{i}.attention.output.dense.bias")    )
    rename_keys.append((F"module.blocks.{i}.norm2.weight", F"vit.encoder.layer.{i}.layernorm_after.weight")    )
    rename_keys.append((F"module.blocks.{i}.norm2.bias", F"vit.encoder.layer.{i}.layernorm_after.bias")    )
    rename_keys.append((F"module.blocks.{i}.mlp.fc1.weight", F"vit.encoder.layer.{i}.intermediate.dense.weight")    )
    rename_keys.append((F"module.blocks.{i}.mlp.fc1.bias", F"vit.encoder.layer.{i}.intermediate.dense.bias")    )
    rename_keys.append((F"module.blocks.{i}.mlp.fc2.weight", F"vit.encoder.layer.{i}.output.dense.weight")    )
    rename_keys.append((F"module.blocks.{i}.mlp.fc2.bias", F"vit.encoder.layer.{i}.output.dense.bias")    )

  # projection layer + position embeddings
  rename_keys.extend(
      [
          ("""module.cls_token""", """vit.embeddings.cls_token"""),
          ("""module.patch_embed.proj.weight""", """vit.embeddings.patch_embeddings.projection.weight"""),
          ("""module.patch_embed.proj.bias""", """vit.embeddings.patch_embeddings.projection.bias"""),
          ("""module.pos_embed""", """vit.embeddings.position_embeddings"""),
      ]    )

  if base_model:
    # layernorm + pooler
    rename_keys.extend(
        [
            ("""module.norm.weight""", """layernorm.weight"""),
            ("""module.norm.bias""", """layernorm.bias"""),
        ]    )

    # if just the base model, we should remove "vit" from all keys that start with "vit"
    _snake_case							:		Any								=  [(pair[0], pair[1][4:]) if pair[1].startswith("""vit"""    ) else pair for pair in rename_keys]
  else:
    # layernorm + classification head
    rename_keys.extend(
        [
            ("""norm.weight""", """vit.layernorm.weight"""),
            ("""norm.bias""", """vit.layernorm.bias"""),
            ("""head.weight""", """classifier.weight"""),
            ("""head.bias""", """classifier.bias"""),
        ]    )

  return rename_keys


def 					UpperCAmelCase__       (snake_case__							:					Dict		,   snake_case__							:					Dict		,   snake_case__							:					List[str]=False    ):
  """simple docstring"""

  for i in range(config.num_hidden_layers    ):
    if base_model:
      _snake_case							:		List[Any]								=  """"""
    else:
      _snake_case							:		List[Any]								=  """vit."""
    # read in weights + bias of input projection layer (in timm, this is a single matrix + bias)
    _snake_case							:		Optional[Any]								=  state_dict.pop(F"module.blocks.{i}.attn.qkv.weight"    )
    _snake_case							:		Optional[Any]								=  state_dict.pop(F"module.blocks.{i}.attn.qkv.bias"    )
    # next, add query, keys and values (in that order) to the state dict
    _snake_case							:		Optional[Any]								=  in_proj_weight[
        : config.hidden_size, :
    ]
    _snake_case							:		Union[str, Any]								=  in_proj_bias[: config.hidden_size]
    _snake_case							:		Union[str, Any]								=  in_proj_weight[
        config.hidden_size : config.hidden_size * 2, :
    ]
    _snake_case							:		Optional[Any]								=  in_proj_bias[
        config.hidden_size : config.hidden_size * 2
    ]
    _snake_case							:		Union[str, Any]								=  in_proj_weight[
        -config.hidden_size :, :
    ]
    _snake_case							:		List[str]								=  in_proj_bias[-config.hidden_size :]


def 					UpperCAmelCase__       (snake_case__							:					str    ):
  """simple docstring"""

  _snake_case							:		Tuple								=  ["""head.weight""", """head.bias"""]
  for k in ignore_keys:
    state_dict.pop(snake_case__		,   snake_case__    )


def 					UpperCAmelCase__       (snake_case__							:					int    ):
  """simple docstring"""

  _snake_case							:		List[str]								=  [
      """module.fc.fc1.weight""",
      """module.fc.fc1.bias""",
      """module.fc.bn1.weight""",
      """module.fc.bn1.bias""",
      """module.fc.bn1.running_mean""",
      """module.fc.bn1.running_var""",
      """module.fc.bn1.num_batches_tracked""",
      """module.fc.fc2.weight""",
      """module.fc.fc2.bias""",
      """module.fc.bn2.weight""",
      """module.fc.bn2.bias""",
      """module.fc.bn2.running_mean""",
      """module.fc.bn2.running_var""",
      """module.fc.bn2.num_batches_tracked""",
      """module.fc.fc3.weight""",
      """module.fc.fc3.bias""",
  ]
  for k in ignore_keys:
    state_dict.pop(snake_case__		,   snake_case__    )


def 					UpperCAmelCase__       (snake_case__							:					List[Any]		,   snake_case__							:					Tuple		,   snake_case__							:					int    ):
  """simple docstring"""

  _snake_case							:		Optional[Any]								=  dct.pop(snake_case__    )
  _snake_case							:		Union[str, Any]								=  val


def 					UpperCAmelCase__       (snake_case__							:					List[Any]		,   snake_case__							:					str    ):
  """simple docstring"""

  _snake_case							:		str								=  ViTMSNConfig()
  _snake_case							:		Any								=  10_00

  _snake_case							:		Tuple								=  """datasets/huggingface/label-files"""
  _snake_case							:		Dict								=  """imagenet-1k-id2label.json"""
  _snake_case							:		int								=  json.load(open(hf_hub_download(snake_case__		,   snake_case__    )		,   """r"""    )    )
  _snake_case							:		Any								=  {int(snake_case__    ): v for k, v in idalabel.items()}
  _snake_case							:		List[Any]								=  idalabel
  _snake_case							:		str								=  {v: k for k, v in idalabel.items()}

  if "s16" in checkpoint_url:
    _snake_case							:		Tuple								=  3_84
    _snake_case							:		Dict								=  15_36
    _snake_case							:		Tuple								=  6
  elif "l16" in checkpoint_url:
    _snake_case							:		Any								=  10_24
    _snake_case							:		int								=  40_96
    _snake_case							:		str								=  24
    _snake_case							:		Optional[int]								=  16
    _snake_case							:		List[Any]								=  0.1
  elif "b4" in checkpoint_url:
    _snake_case							:		Tuple								=  4
  elif "l7" in checkpoint_url:
    _snake_case							:		int								=  7
    _snake_case							:		Dict								=  10_24
    _snake_case							:		Optional[Any]								=  40_96
    _snake_case							:		Any								=  24
    _snake_case							:		Union[str, Any]								=  16
    _snake_case							:		Optional[int]								=  0.1

  _snake_case							:		int								=  ViTMSNModel(snake_case__    )

  _snake_case							:		Optional[int]								=  torch.hub.load_state_dict_from_url(snake_case__		,   map_location="""cpu"""    )["""target_encoder"""]

  _snake_case							:		List[str]								=  ViTImageProcessor(size=config.image_size    )

  remove_projection_head(snake_case__    )
  _snake_case							:		List[str]								=  create_rename_keys(snake_case__		,   base_model=snake_case__    )

  for src, dest in rename_keys:
    rename_key(snake_case__		,   snake_case__		,   snake_case__    )
  read_in_q_k_v(snake_case__		,   snake_case__		,   base_model=snake_case__    )

  model.load_state_dict(snake_case__    )
  model.eval()

  _snake_case							:		Union[str, Any]								=  """http://images.cocodataset.org/val2017/000000039769.jpg"""

  _snake_case							:		Tuple								=  Image.open(requests.get(snake_case__		,   stream=snake_case__    ).raw    )
  _snake_case							:		str								=  ViTImageProcessor(
      size=config.image_size		,   image_mean=snake_case__		,   image_std=snake_case__    )
  _snake_case							:		Any								=  image_processor(images=snake_case__		,   return_tensors="""pt"""    )

  # forward pass
  torch.manual_seed(2    )
  _snake_case							:		int								=  model(**snake_case__    )
  _snake_case							:		List[Any]								=  outputs.last_hidden_state

  # The following Colab Notebook was used to generate these outputs:
  # https://colab.research.google.com/gist/sayakpaul/3672419a04f5997827503fd84079bdd1/scratchpad.ipynb
  if "s16" in checkpoint_url:
    _snake_case							:		Optional[Any]								=  torch.tensor([[-1.09_15, -1.48_76, -1.18_09]]    )
  elif "b16" in checkpoint_url:
    _snake_case							:		str								=  torch.tensor([[14.28_89, -18.90_45, 11.72_81]]    )
  elif "l16" in checkpoint_url:
    _snake_case							:		Optional[int]								=  torch.tensor([[41.50_28, -22.86_81, 45.64_75]]    )
  elif "b4" in checkpoint_url:
    _snake_case							:		List[Any]								=  torch.tensor([[-4.38_68, 5.29_32, -0.41_37]]    )
  else:
    _snake_case							:		Optional[int]								=  torch.tensor([[-0.17_92, -0.64_65, 2.42_63]]    )

  # verify logits
  assert torch.allclose(last_hidden_state[:, 0, :3]		,   snake_case__		,   atol=1e-4    )

  print(F"Saving model to {pytorch_dump_folder_path}"    )
  model.save_pretrained(snake_case__    )

  print(F"Saving image processor to {pytorch_dump_folder_path}"    )
  image_processor.save_pretrained(snake_case__    )


if __name__ == "__main__":
     A_						=				argparse.ArgumentParser()
     # Required parameters
     parser.add_argument(
         '''--checkpoint_url''',
         default='''https://dl.fbaipublicfiles.com/msn/vits16_800ep.pth.tar''',
         type=str,
         help='''URL of the checkpoint you\'d like to convert.''',
     )
     parser.add_argument(
         '''--pytorch_dump_folder_path''', default=None, type=str, help='''Path to the output PyTorch model directory.'''
     )

     A_						=				parser.parse_args()
     convert_vit_msn_checkpoint(args.checkpoint_url, args.pytorch_dump_folder_path)


