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import torch
from . import model_base
from . import utils
from . import sd1_clip
from . import sd2_clip
from . import sdxl_clip
from . import supported_models_base
from . import latent_formats
from . import diffusers_convert
class SD15(supported_models_base.BASE):
unet_config = {
"context_dim": 768,
"model_channels": 320,
"use_linear_in_transformer": False,
"adm_in_channels": None,
}
unet_extra_config = {
"num_heads": 8,
"num_head_channels": -1,
}
latent_format = latent_formats.SD15
def process_clip_state_dict(self, state_dict):
k = list(state_dict.keys())
for x in k:
if x.startswith("cond_stage_model.transformer.") and not x.startswith("cond_stage_model.transformer.text_model."):
y = x.replace("cond_stage_model.transformer.", "cond_stage_model.transformer.text_model.")
state_dict[y] = state_dict.pop(x)
if 'cond_stage_model.transformer.text_model.embeddings.position_ids' in state_dict:
ids = state_dict['cond_stage_model.transformer.text_model.embeddings.position_ids']
if ids.dtype == torch.float32:
state_dict['cond_stage_model.transformer.text_model.embeddings.position_ids'] = ids.round()
return state_dict
def clip_target(self):
return supported_models_base.ClipTarget(sd1_clip.SD1Tokenizer, sd1_clip.SD1ClipModel)
class SD20(supported_models_base.BASE):
unet_config = {
"context_dim": 1024,
"model_channels": 320,
"use_linear_in_transformer": True,
"adm_in_channels": None,
}
latent_format = latent_formats.SD15
def model_type(self, state_dict, prefix=""):
if self.unet_config["in_channels"] == 4: #SD2.0 inpainting models are not v prediction
k = "{}output_blocks.11.1.transformer_blocks.0.norm1.bias".format(prefix)
out = state_dict[k]
if torch.std(out, unbiased=False) > 0.09: # not sure how well this will actually work. I guess we will find out.
return model_base.ModelType.V_PREDICTION
return model_base.ModelType.EPS
def process_clip_state_dict(self, state_dict):
state_dict = utils.transformers_convert(state_dict, "cond_stage_model.model.", "cond_stage_model.transformer.text_model.", 24)
return state_dict
def process_clip_state_dict_for_saving(self, state_dict):
replace_prefix = {}
replace_prefix[""] = "cond_stage_model.model."
state_dict = utils.state_dict_prefix_replace(state_dict, replace_prefix)
state_dict = diffusers_convert.convert_text_enc_state_dict_v20(state_dict)
return state_dict
def clip_target(self):
return supported_models_base.ClipTarget(sd2_clip.SD2Tokenizer, sd2_clip.SD2ClipModel)
class SD21UnclipL(SD20):
unet_config = {
"context_dim": 1024,
"model_channels": 320,
"use_linear_in_transformer": True,
"adm_in_channels": 1536,
}
clip_vision_prefix = "embedder.model.visual."
noise_aug_config = {"noise_schedule_config": {"timesteps": 1000, "beta_schedule": "squaredcos_cap_v2"}, "timestep_dim": 768}
class SD21UnclipH(SD20):
unet_config = {
"context_dim": 1024,
"model_channels": 320,
"use_linear_in_transformer": True,
"adm_in_channels": 2048,
}
clip_vision_prefix = "embedder.model.visual."
noise_aug_config = {"noise_schedule_config": {"timesteps": 1000, "beta_schedule": "squaredcos_cap_v2"}, "timestep_dim": 1024}
class SDXLRefiner(supported_models_base.BASE):
unet_config = {
"model_channels": 384,
"use_linear_in_transformer": True,
"context_dim": 1280,
"adm_in_channels": 2560,
"transformer_depth": [0, 4, 4, 0],
}
latent_format = latent_formats.SDXL
def get_model(self, state_dict, prefix="", device=None):
return model_base.SDXLRefiner(self, device=device)
def process_clip_state_dict(self, state_dict):
keys_to_replace = {}
replace_prefix = {}
state_dict = utils.transformers_convert(state_dict, "conditioner.embedders.0.model.", "cond_stage_model.clip_g.transformer.text_model.", 32)
keys_to_replace["conditioner.embedders.0.model.text_projection"] = "cond_stage_model.clip_g.text_projection"
keys_to_replace["conditioner.embedders.0.model.logit_scale"] = "cond_stage_model.clip_g.logit_scale"
state_dict = utils.state_dict_key_replace(state_dict, keys_to_replace)
return state_dict
def process_clip_state_dict_for_saving(self, state_dict):
replace_prefix = {}
state_dict_g = diffusers_convert.convert_text_enc_state_dict_v20(state_dict, "clip_g")
if "clip_g.transformer.text_model.embeddings.position_ids" in state_dict_g:
state_dict_g.pop("clip_g.transformer.text_model.embeddings.position_ids")
replace_prefix["clip_g"] = "conditioner.embedders.0.model"
state_dict_g = utils.state_dict_prefix_replace(state_dict_g, replace_prefix)
return state_dict_g
def clip_target(self):
return supported_models_base.ClipTarget(sdxl_clip.SDXLTokenizer, sdxl_clip.SDXLRefinerClipModel)
class SDXL(supported_models_base.BASE):
unet_config = {
"model_channels": 320,
"use_linear_in_transformer": True,
"transformer_depth": [0, 2, 10],
"context_dim": 2048,
"adm_in_channels": 2816
}
latent_format = latent_formats.SDXL
def model_type(self, state_dict, prefix=""):
if "v_pred" in state_dict:
return model_base.ModelType.V_PREDICTION
else:
return model_base.ModelType.EPS
def get_model(self, state_dict, prefix="", device=None):
out = model_base.SDXL(self, model_type=self.model_type(state_dict, prefix), device=device)
if self.inpaint_model():
out.set_inpaint()
return out
def process_clip_state_dict(self, state_dict):
keys_to_replace = {}
replace_prefix = {}
replace_prefix["conditioner.embedders.0.transformer.text_model"] = "cond_stage_model.clip_l.transformer.text_model"
state_dict = utils.transformers_convert(state_dict, "conditioner.embedders.1.model.", "cond_stage_model.clip_g.transformer.text_model.", 32)
keys_to_replace["conditioner.embedders.1.model.text_projection"] = "cond_stage_model.clip_g.text_projection"
keys_to_replace["conditioner.embedders.1.model.logit_scale"] = "cond_stage_model.clip_g.logit_scale"
state_dict = utils.state_dict_prefix_replace(state_dict, replace_prefix)
state_dict = utils.state_dict_key_replace(state_dict, keys_to_replace)
return state_dict
def process_clip_state_dict_for_saving(self, state_dict):
replace_prefix = {}
keys_to_replace = {}
state_dict_g = diffusers_convert.convert_text_enc_state_dict_v20(state_dict, "clip_g")
if "clip_g.transformer.text_model.embeddings.position_ids" in state_dict_g:
state_dict_g.pop("clip_g.transformer.text_model.embeddings.position_ids")
for k in state_dict:
if k.startswith("clip_l"):
state_dict_g[k] = state_dict[k]
replace_prefix["clip_g"] = "conditioner.embedders.1.model"
replace_prefix["clip_l"] = "conditioner.embedders.0"
state_dict_g = utils.state_dict_prefix_replace(state_dict_g, replace_prefix)
return state_dict_g
def clip_target(self):
return supported_models_base.ClipTarget(sdxl_clip.SDXLTokenizer, sdxl_clip.SDXLClipModel)
models = [SD15, SD20, SD21UnclipL, SD21UnclipH, SDXLRefiner, SDXL]
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