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from backend import utils
class ForgeObjects:
def __init__(self, unet, clip, vae, clipvision):
self.unet = unet
self.clip = clip
self.vae = vae
self.clipvision = clipvision
def shallow_copy(self):
return ForgeObjects(self.unet, self.clip, self.vae, self.clipvision)
class ForgeDiffusionEngine:
matched_guesses = []
def __init__(self, estimated_config, huggingface_components):
self.model_config = estimated_config
self.is_inpaint = estimated_config.inpaint_model()
self.forge_objects = None
self.forge_objects_original = None
self.forge_objects_after_applying_lora = None
self.current_lora_hash = str([])
self.fix_for_webui_backward_compatibility()
def set_clip_skip(self, clip_skip):
pass
def get_first_stage_encoding(self, x):
return x
def get_learned_conditioning(self, prompt: list[str]):
raise NotImplementedError
def encode_first_stage(self, x):
raise NotImplementedError
def decode_first_stage(self, x):
raise NotImplementedError
def get_prompt_lengths_on_ui(self, prompt):
return 0, 75
def is_webui_legacy_model(self):
return self.is_sd1 or self.is_sdxl
def fix_for_webui_backward_compatibility(self):
self.tiling_enabled = False
self.first_stage_model = None
self.cond_stage_model = None
self.use_distilled_cfg_scale = False
self.use_shift = False
self.is_sd1 = False
self.is_sdxl = False
self.is_flux = False # affects the usage of TAESD
self.is_wan = False # affects the usage of WanVAE (B, C, T, H, W)
def save_unet(self, filename):
import safetensors.torch as sf
sd = utils.get_state_dict_after_quant(self.forge_objects.unet.model.diffusion_model)
sf.save_file(sd, filename)
return filename
def save_checkpoint(self, filename):
import safetensors.torch as sf
sd = {}
sd.update(utils.get_state_dict_after_quant(self.forge_objects.unet.model.diffusion_model, prefix="model.diffusion_model."))
sd.update(utils.get_state_dict_after_quant(self.forge_objects.clip.cond_stage_model, prefix="text_encoders."))
sd.update(utils.get_state_dict_after_quant(self.forge_objects.vae.first_stage_model, prefix="vae."))
sf.save_file(sd, filename)
return filename
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