596 lines
25 KiB
Python
596 lines
25 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) Alibaba, Inc. and its affiliates.
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import copy
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import os.path
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import random
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from collections import OrderedDict
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import torch
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import torchvision.transforms.functional as TF
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from PIL.Image import Image
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from scepter.modules.model.network.diffusion.diffusion import GaussianDiffusion
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from scepter.modules.model.network.diffusion.schedules import noise_schedule
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from scepter.modules.model.registry import (BACKBONES, EMBEDDERS, MODELS,
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TOKENIZERS)
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from scepter.modules.model.utils.data_utils import crop_back
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from scepter.modules.utils.distribute import we
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from scepter.modules.utils.file_system import FS
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def get_model(model_tuple):
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assert 'model' in model_tuple
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return model_tuple['model']
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class LargenInference():
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'''
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define vae, unet, text-encoder, tuner, refiner components
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support to load the components dynamicly.
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create and load model when run this model at the first time.
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'''
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def __init__(self, logger=None):
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self.logger = logger
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self.loaded_model = {}
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self.loaded_model_name = [
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'diffusion_model', 'first_stage_model', 'cond_stage_model'
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]
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def init_from_cfg(self, cfg):
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self.name = cfg.NAME
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self.is_default = cfg.get('IS_DEFAULT', False)
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module_paras = self.load_default(cfg.get('DEFAULT_PARAS', None))
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assert cfg.have('MODEL')
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cfg.MODEL = self.redefine_paras(cfg.MODEL)
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self.diffusion = self.load_schedule(cfg.MODEL.SCHEDULE)
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self.diffusion_model = self.infer_model(
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cfg.MODEL.DIFFUSION_MODEL, module_paras.get(
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'DIFFUSION_MODEL',
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None)) if cfg.MODEL.have('DIFFUSION_MODEL') else None
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self.first_stage_model = self.infer_model(
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cfg.MODEL.FIRST_STAGE_MODEL,
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module_paras.get(
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'FIRST_STAGE_MODEL',
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None)) if cfg.MODEL.have('FIRST_STAGE_MODEL') else None
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self.cond_stage_model = self.infer_model(
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cfg.MODEL.COND_STAGE_MODEL,
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module_paras.get(
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'COND_STAGE_MODEL',
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None)) if cfg.MODEL.have('COND_STAGE_MODEL') else None
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self.refiner_cond_model = self.infer_model(
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cfg.MODEL.REFINER_COND_MODEL,
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module_paras.get(
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'REFINER_COND_MODEL',
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None)) if cfg.MODEL.have('REFINER_COND_MODEL') else None
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self.refiner_diffusion_model = self.infer_model(
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cfg.MODEL.REFINER_MODEL, module_paras.get(
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'REFINER_MODEL',
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None)) if cfg.MODEL.have('REFINER_MODEL') else None
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self.tokenizer = TOKENIZERS.build(
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cfg.MODEL.TOKENIZER,
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logger=self.logger) if cfg.MODEL.have('TOKENIZER') else None
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if self.tokenizer is not None:
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self.cond_stage_model['cfg'].KWARGS = {
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'vocab_size': self.tokenizer.vocab_size
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}
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def redefine_paras(self, cfg):
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if cfg.get('PRETRAINED_MODEL', None):
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assert FS.isfile(cfg.PRETRAINED_MODEL)
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with FS.get_from(cfg.PRETRAINED_MODEL,
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wait_finish=True) as local_path:
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if local_path.endswith('safetensors'):
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from safetensors.torch import load_file as load_safetensors
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sd = load_safetensors(local_path)
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else:
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sd = torch.load(local_path, map_location='cpu')
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if 'model' in sd:
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sd = sd['model']
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first_stage_model_path = os.path.join(
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os.path.dirname(local_path), 'first_stage_model.pth')
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cond_stage_model_path = os.path.join(
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os.path.dirname(local_path), 'cond_stage_model.pth')
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diffusion_model_path = os.path.join(
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os.path.dirname(local_path), 'diffusion_model.pth')
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if (not os.path.exists(first_stage_model_path)
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or not os.path.exists(cond_stage_model_path)
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or not os.path.exists(diffusion_model_path)):
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self.logger.info(
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'Now read the whole model and rearrange the modules, it may take several mins.'
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)
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first_stage_model = OrderedDict()
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cond_stage_model = OrderedDict()
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diffusion_model = OrderedDict()
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for k, v in sd.items():
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if k.startswith('first_stage_model.'):
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first_stage_model[k.replace(
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'first_stage_model.', '')] = v
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elif k.startswith('conditioner.'):
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cond_stage_model[k.replace('conditioner.', '')] = v
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elif k.startswith('cond_stage_model.'):
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if k.startswith('cond_stage_model.model.'):
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cond_stage_model[k.replace(
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'cond_stage_model.model.', '')] = v
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else:
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cond_stage_model[k.replace(
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'cond_stage_model.', '')] = v
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elif k.startswith('model.diffusion_model.'):
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diffusion_model[k.replace('model.diffusion_model.',
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'')] = v
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elif k.startswith('model.'):
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diffusion_model[k.replace('model.', '')] = v
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else:
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continue
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if cfg.have('FIRST_STAGE_MODEL'):
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with open(first_stage_model_path + 'cache', 'wb') as f:
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torch.save(first_stage_model, f)
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os.rename(first_stage_model_path + 'cache',
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first_stage_model_path)
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self.logger.info(
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'First stage model has been processed.')
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if cfg.have('COND_STAGE_MODEL'):
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with open(cond_stage_model_path + 'cache', 'wb') as f:
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torch.save(cond_stage_model, f)
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os.rename(cond_stage_model_path + 'cache',
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cond_stage_model_path)
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self.logger.info(
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'Cond stage model has been processed.')
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if cfg.have('DIFFUSION_MODEL'):
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with open(diffusion_model_path + 'cache', 'wb') as f:
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torch.save(diffusion_model, f)
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os.rename(diffusion_model_path + 'cache',
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diffusion_model_path)
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self.logger.info('Diffusion model has been processed.')
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if not cfg.FIRST_STAGE_MODEL.get('PRETRAINED_MODEL', None):
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cfg.FIRST_STAGE_MODEL.PRETRAINED_MODEL = first_stage_model_path
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else:
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cfg.FIRST_STAGE_MODEL.RELOAD_MODEL = first_stage_model_path
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if not cfg.COND_STAGE_MODEL.get('PRETRAINED_MODEL', None):
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cfg.COND_STAGE_MODEL.PRETRAINED_MODEL = cond_stage_model_path
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else:
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cfg.COND_STAGE_MODEL.RELOAD_MODEL = cond_stage_model_path
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if not cfg.DIFFUSION_MODEL.get('PRETRAINED_MODEL', None):
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cfg.DIFFUSION_MODEL.PRETRAINED_MODEL = diffusion_model_path
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else:
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cfg.DIFFUSION_MODEL.RELOAD_MODEL = diffusion_model_path
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return cfg
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def init_from_modules(self, modules):
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for k, v in modules.items():
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self.__setattr__(k, v)
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def infer_model(self, cfg, module_paras=None):
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module = {
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'model': None,
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'cfg': cfg,
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'device': 'offline',
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'name': cfg.NAME,
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'function_info': {},
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'paras': {}
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}
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if module_paras is None:
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return module
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function_info = {}
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paras = {
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k.lower(): v
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for k, v in module_paras.get('PARAS', {}).items()
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}
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for function in module_paras.get('FUNCTION', []):
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input_dict = {}
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for inp in function.get('INPUT', []):
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if inp.lower() in self.input:
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input_dict[inp.lower()] = self.input[inp.lower()]
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function_info[function.NAME] = {
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'dtype': function.get('DTYPE', 'float32'),
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'input': input_dict
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}
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module['paras'] = paras
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module['function_info'] = function_info
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return module
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def init_from_ckpt(self, path, model, ignore_keys=list()):
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if path.endswith('safetensors'):
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from safetensors.torch import load_file as load_safetensors
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sd = load_safetensors(path)
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else:
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sd = torch.load(path, map_location='cpu')
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new_sd = OrderedDict()
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for k, v in sd.items():
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ignored = False
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for ik in ignore_keys:
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if ik in k:
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if we.rank == 0:
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self.logger.info(
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'Ignore key {} from state_dict.'.format(k))
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ignored = True
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break
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if not ignored:
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new_sd[k] = v
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missing, unexpected = model.load_state_dict(new_sd, strict=False)
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if we.rank == 0:
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self.logger.info(
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f'Restored from {path} with {len(missing)} missing and {len(unexpected)} unexpected keys'
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)
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if len(missing) > 0:
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self.logger.info(f'Missing Keys:\n {missing}')
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if len(unexpected) > 0:
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self.logger.info(f'\nUnexpected Keys:\n {unexpected}')
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def load(self, module):
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if module['device'] == 'offline':
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if module['cfg'].NAME in MODELS.class_map:
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model = MODELS.build(module['cfg'], logger=self.logger).eval()
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elif module['cfg'].NAME in BACKBONES.class_map:
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model = BACKBONES.build(module['cfg'],
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logger=self.logger).eval()
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elif module['cfg'].NAME in EMBEDDERS.class_map:
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model = EMBEDDERS.build(module['cfg'],
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logger=self.logger).eval()
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else:
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raise NotImplementedError
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if module['cfg'].get('RELOAD_MODEL', None):
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self.init_from_ckpt(module['cfg'].RELOAD_MODEL, model)
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module['model'] = model
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module['device'] = 'cpu'
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if module['device'] == 'cpu':
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module['device'] = we.device_id
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module['model'] = module['model'].to(we.device_id)
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return module
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def unload(self, module):
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if module is None:
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return module
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module['model'] = module['model'].to('cpu')
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module['device'] = 'cpu'
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torch.cuda.empty_cache()
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torch.cuda.ipc_collect()
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return module
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def dynamic_load(self, module=None, name=''):
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self.logger.info('Loading {} model'.format(name))
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if name == 'all':
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for subname in self.loaded_model_name:
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self.loaded_model[subname] = self.dynamic_load(
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getattr(self, subname), subname)
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elif name in self.loaded_model_name:
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if name in self.loaded_model:
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if module['cfg'] != self.loaded_model[name]['cfg']:
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self.unload(self.loaded_model[name])
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module = self.load(module)
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self.loaded_model[name] = module
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return module
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elif module['device'] == 'cpu':
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module = self.load(module)
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return module
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else:
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return module
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else:
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module = self.load(module)
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self.loaded_model[name] = module
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return module
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else:
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return self.load(module)
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def dynamic_unload(self, module=None, name='', skip_loaded=False):
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self.logger.info('Unloading {} model'.format(name))
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if name == 'all':
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for name, module in self.loaded_model.items():
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module = self.unload(self.loaded_model[name])
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self.loaded_model[name] = module
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elif name in self.loaded_model_name:
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if name in self.loaded_model:
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if not skip_loaded:
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module = self.unload(self.loaded_model[name])
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self.loaded_model[name] = module
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else:
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self.unload(module)
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else:
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self.unload(module)
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def load_default(self, cfg):
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module_paras = {}
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if cfg is not None:
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self.paras = cfg.PARAS
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self.input = {k.lower(): v for k, v in cfg.INPUT.items()}
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self.output = {k.lower(): v for k, v in cfg.OUTPUT.items()}
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module_paras = cfg.MODULES_PARAS
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return module_paras
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def load_schedule(self, cfg):
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parameterization = cfg.get('PARAMETERIZATION', 'eps')
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assert parameterization in [
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'eps', 'x0', 'v'
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], 'currently only supporting "eps" and "x0" and "v"'
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num_timesteps = cfg.get('TIMESTEPS', 1000)
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schedule_args = {
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k.lower(): v
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for k, v in cfg.get('SCHEDULE_ARGS', {
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'NAME': 'logsnr_cosine_interp',
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'SCALE_MIN': 2.0,
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'SCALE_MAX': 4.0
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}).items()
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}
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zero_terminal_snr = cfg.get('ZERO_TERMINAL_SNR', False)
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if zero_terminal_snr:
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assert parameterization == 'v', 'Now zero_terminal_snr only support v-prediction mode.'
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sigmas = noise_schedule(schedule=schedule_args.pop('name'),
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n=num_timesteps,
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zero_terminal_snr=zero_terminal_snr,
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**schedule_args)
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diffusion = GaussianDiffusion(sigmas=sigmas,
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prediction_type=parameterization)
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return diffusion
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def get_batch(self, value_dict, num_samples=1):
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batch = {}
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batch_uc = {}
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N = num_samples
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device = we.device_id
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for key in value_dict:
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if key == 'prompt':
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if not self.tokenizer:
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batch['prompt'] = value_dict['prompt']
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batch_uc['prompt'] = value_dict['negative_prompt']
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else:
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batch['tokens'] = self.tokenizer(value_dict['prompt']).to(
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we.device_id)
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batch_uc['tokens'] = self.tokenizer(
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value_dict['negative_prompt']).to(we.device_id)
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elif key == 'original_size_as_tuple':
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batch['original_size_as_tuple'] = (torch.tensor(
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value_dict['original_size_as_tuple']).to(device).repeat(
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N, 1))
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elif key == 'crop_coords_top_left':
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batch['crop_coords_top_left'] = (torch.tensor(
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value_dict['crop_coords_top_left']).to(device).repeat(
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N, 1))
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elif key == 'aesthetic_score':
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batch['aesthetic_score'] = (torch.tensor(
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[value_dict['aesthetic_score']]).to(device).repeat(N, 1))
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batch_uc['aesthetic_score'] = (torch.tensor([
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value_dict['negative_aesthetic_score']
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]).to(device).repeat(N, 1))
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elif key == 'target_size_as_tuple':
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batch['target_size_as_tuple'] = (torch.tensor(
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value_dict['target_size_as_tuple']).to(device).repeat(
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N, 1))
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elif key == 'image':
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batch[key] = self.load_image(value_dict[key], num_samples=N)
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else:
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batch[key] = value_dict[key]
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for key in batch.keys():
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if key not in batch_uc and isinstance(batch[key], torch.Tensor):
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batch_uc[key] = torch.clone(batch[key])
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return batch, batch_uc
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def load_image(self, image, num_samples=1):
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if isinstance(image, torch.Tensor):
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pass
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elif isinstance(image, Image):
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pass
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elif isinstance(image, Image):
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pass
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def get_function_info(self, module, function_name=None):
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all_function = module['function_info']
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if function_name in all_function:
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return function_name, all_function[function_name]['dtype']
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if function_name is None and len(all_function) == 1:
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for k, v in all_function.items():
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return k, v['dtype']
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def encode_first_stage(self, x, **kwargs):
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_, dtype = self.get_function_info(self.first_stage_model, 'encode')
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with torch.autocast('cuda',
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enabled=dtype == 'float16',
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dtype=getattr(torch, dtype)):
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z = get_model(self.first_stage_model).encode(x)
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return self.first_stage_model['paras']['scale_factor'] * z
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def decode_first_stage(self, z):
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_, dtype = self.get_function_info(self.first_stage_model, 'encode')
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with torch.autocast('cuda',
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enabled=dtype == 'float16',
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dtype=getattr(torch, dtype)):
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z = 1. / self.first_stage_model['paras']['scale_factor'] * z
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return get_model(self.first_stage_model).decode(z)
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@torch.no_grad()
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def __call__(self,
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input,
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num_samples=1,
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intermediate_callback=None,
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refine_strength=0,
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img_to_img_strength=0,
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cat_uc=True,
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tuner_model=None,
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control_model=None,
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**kwargs):
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value_input = copy.deepcopy(self.input)
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value_input.update(input)
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print(value_input)
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height, width = value_input['target_size_as_tuple']
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value_output = copy.deepcopy(self.output)
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batch, batch_uc = self.get_batch(value_input, num_samples=1)
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# first stage encode
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task = kwargs.get('largen_task', 'Text_Guided_Inpainting')
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image_scale = kwargs.get('largen_image_scale', 1.0)
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tar_image = kwargs.get('largen_tar_image', None)
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tar_mask = kwargs.get('largen_tar_mask', None)
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masked_image = kwargs.get('largen_masked_image', None)
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ref_image = kwargs.get('largen_ref_image', None)
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ref_mask = kwargs.get('largen_ref_mask', None)
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ref_clip = kwargs.get('largen_ref_clip', None)
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base_image = kwargs.get('largen_base_image', None)
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extra_sizes = kwargs.get('largen_extra_sizes', None)
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bbox_yyxx = kwargs.get('largen_bbox_yyxx', None)
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device = we.device_id
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tar_image = tar_image.to(device)
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tar_mask = tar_mask.to(device)
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masked_image = masked_image.to(device)
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if 'Subject' in task:
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ref_image = ref_image.to(device)
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ref_mask = ref_mask.to(device)
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ref_clip = ref_clip.to(device)
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self.dynamic_load(self.first_stage_model, 'first_stage_model')
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tar_x0 = self.encode_first_stage(tar_image)
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masked_x0 = self.encode_first_stage(masked_image)
|
|
b, _, h, w = tar_x0.shape
|
|
tar_mask_latent = TF.resize(tar_mask, (h, w), antialias=True)
|
|
tar_mask_latent = (tar_mask_latent > 0.5).float()
|
|
|
|
batch.update({
|
|
'tar_x0': tar_x0,
|
|
'tar_mask_latent': tar_mask_latent,
|
|
'masked_x0': masked_x0,
|
|
'task': task
|
|
})
|
|
batch_uc.update({
|
|
'tar_x0': tar_x0,
|
|
'tar_mask_latent': tar_mask_latent,
|
|
'masked_x0': masked_x0,
|
|
'task': task
|
|
})
|
|
|
|
if 'Subject' in task and ref_image is not None:
|
|
ref_x0 = self.encode_first_stage(ref_image)
|
|
batch.update({
|
|
'ref_ip': ref_clip,
|
|
'ref_detail': ref_clip,
|
|
'ref_x0': ref_x0,
|
|
'ref_mask': ref_mask,
|
|
'image_scale': image_scale,
|
|
})
|
|
batch_uc.update({
|
|
'ref_ip': torch.zeros_like(ref_clip),
|
|
'ref_detail': ref_clip,
|
|
'ref_x0': ref_x0,
|
|
'ref_mask': ref_mask,
|
|
'image_scale': image_scale,
|
|
})
|
|
|
|
self.dynamic_unload(self.first_stage_model,
|
|
'first_stage_model',
|
|
skip_loaded=True)
|
|
|
|
# cond stage
|
|
self.dynamic_load(self.cond_stage_model, 'cond_stage_model')
|
|
function_name, dtype = self.get_function_info(self.cond_stage_model)
|
|
with torch.autocast('cuda',
|
|
enabled=dtype == 'float16',
|
|
dtype=getattr(torch, dtype)):
|
|
context = getattr(get_model(self.cond_stage_model),
|
|
function_name)(batch)
|
|
null_context = getattr(get_model(self.cond_stage_model),
|
|
function_name)(batch_uc)
|
|
|
|
self.dynamic_unload(self.cond_stage_model,
|
|
'cond_stage_model',
|
|
skip_loaded=True)
|
|
|
|
# get noise
|
|
seed = kwargs.pop('seed', -1)
|
|
g = torch.Generator(device=we.device_id)
|
|
seed = seed if seed >= 0 else random.randint(0, 2**32 - 1)
|
|
g.manual_seed(seed)
|
|
if 'seed' in value_output:
|
|
value_output['seed'] = seed
|
|
for sample_id in range(num_samples):
|
|
if self.diffusion_model is not None:
|
|
noise = torch.empty(
|
|
1,
|
|
4,
|
|
height // self.first_stage_model['paras']['size_factor'],
|
|
width // self.first_stage_model['paras']['size_factor'],
|
|
device=we.device_id).normal_(generator=g)
|
|
|
|
self.dynamic_load(self.diffusion_model, 'diffusion_model')
|
|
# UNet use input n_prompt
|
|
function_name, dtype = self.get_function_info(
|
|
self.diffusion_model)
|
|
with torch.autocast('cuda',
|
|
enabled=dtype == 'float16',
|
|
dtype=getattr(torch, dtype)):
|
|
latent = self.diffusion.sample(
|
|
noise=noise,
|
|
x=None,
|
|
denoising_strength=1.0,
|
|
refine_strength=refine_strength,
|
|
solver=value_input.get('sample', 'ddim'),
|
|
model=get_model(self.diffusion_model),
|
|
model_kwargs=[{
|
|
'cond': context
|
|
}, {
|
|
'cond': null_context
|
|
}],
|
|
steps=value_input.get('sample_steps', 50),
|
|
guide_scale=value_input.get('guide_scale', 7.5),
|
|
guide_rescale=value_input.get('guide_rescale', 0.5),
|
|
discretization=value_input.get('discretization',
|
|
'trailing'),
|
|
show_progress=True,
|
|
seed=seed,
|
|
condition_fn=None,
|
|
clamp=None,
|
|
percentile=None,
|
|
t_max=None,
|
|
t_min=None,
|
|
discard_penultimate_step=None,
|
|
intermediate_callback=intermediate_callback,
|
|
cat_uc=cat_uc,
|
|
**kwargs)
|
|
|
|
self.dynamic_unload(self.diffusion_model,
|
|
'diffusion_model',
|
|
skip_loaded=True)
|
|
|
|
if 'latent' in value_output:
|
|
if value_output['latent'] is None or (
|
|
isinstance(value_output['latent'], list)
|
|
and len(value_output['latent']) < 1):
|
|
value_output['latent'] = []
|
|
value_output['latent'].append(latent)
|
|
|
|
self.dynamic_load(self.first_stage_model, 'first_stage_model')
|
|
x_samples = self.decode_first_stage(latent).float()
|
|
self.dynamic_unload(self.first_stage_model,
|
|
'first_stage_model',
|
|
skip_loaded=True)
|
|
images = torch.clamp((x_samples + 1.0) / 2.0, min=0.0, max=1.0)
|
|
if base_image is not None:
|
|
stitch_images = []
|
|
for img in images:
|
|
stitch_img = crop_back(img, copy.deepcopy(base_image),
|
|
extra_sizes, bbox_yyxx)
|
|
stitch_images.append(stitch_img)
|
|
images = torch.stack(stitch_images, dim=0)
|
|
if 'images' in value_output:
|
|
if value_output['images'] is None or (
|
|
isinstance(value_output['images'], list)
|
|
and len(value_output['images']) < 1):
|
|
value_output['images'] = []
|
|
value_output['images'].append(images)
|
|
|
|
for k, v in value_output.items():
|
|
if isinstance(v, list):
|
|
value_output[k] = torch.cat(v, dim=0)
|
|
if isinstance(v, torch.Tensor):
|
|
value_output[k] = v.cpu()
|
|
|
|
return value_output
|