diff options
Diffstat (limited to 'modules/sd_vae.py')
| -rw-r--r-- | modules/sd_vae.py | 97 |
1 files changed, 90 insertions, 7 deletions
diff --git a/modules/sd_vae.py b/modules/sd_vae.py index e9239326..78e14e8a 100644 --- a/modules/sd_vae.py +++ b/modules/sd_vae.py @@ -1,26 +1,65 @@ import torch import os from collections import namedtuple -from modules import shared, devices +from modules import shared, devices, script_callbacks from modules.paths import models_path import glob + model_dir = "Stable-diffusion" model_path = os.path.abspath(os.path.join(models_path, model_dir)) vae_dir = "VAE" vae_path = os.path.abspath(os.path.join(models_path, vae_dir)) + vae_ignore_keys = {"model_ema.decay", "model_ema.num_updates"} + + default_vae_dict = {"auto": "auto", "None": "None"} default_vae_list = ["auto", "None"] + + default_vae_values = [default_vae_dict[x] for x in default_vae_list] vae_dict = dict(default_vae_dict) vae_list = list(default_vae_list) first_load = True + +base_vae = None +loaded_vae_file = None +checkpoint_info = None + + +def get_base_vae(model): + if base_vae is not None and checkpoint_info == model.sd_checkpoint_info and model: + return base_vae + return None + + +def store_base_vae(model): + global base_vae, checkpoint_info + if checkpoint_info != model.sd_checkpoint_info: + base_vae = model.first_stage_model.state_dict().copy() + checkpoint_info = model.sd_checkpoint_info + + +def delete_base_vae(): + global base_vae, checkpoint_info + base_vae = None + checkpoint_info = None + + +def restore_base_vae(model): + global base_vae, checkpoint_info + if base_vae is not None and checkpoint_info == model.sd_checkpoint_info: + load_vae_dict(model, base_vae) + delete_base_vae() + + def get_filename(filepath): return os.path.splitext(os.path.basename(filepath))[0] + def refresh_vae_list(vae_path=vae_path, model_path=model_path): global vae_dict, vae_list res = {} @@ -43,6 +82,7 @@ def refresh_vae_list(vae_path=vae_path, model_path=model_path): vae_dict.update(res) return vae_list + def resolve_vae(checkpoint_file, vae_file="auto"): global first_load, vae_dict, vae_list # save_settings = False @@ -96,24 +136,26 @@ def resolve_vae(checkpoint_file, vae_file="auto"): return vae_file -def load_vae(model, vae_file): - global first_load, vae_dict, vae_list + +def load_vae(model, vae_file=None): + global first_load, vae_dict, vae_list, loaded_vae_file # save_settings = False if vae_file: print(f"Loading VAE weights from: {vae_file}") vae_ckpt = torch.load(vae_file, map_location=shared.weight_load_location) vae_dict_1 = {k: v for k, v in vae_ckpt["state_dict"].items() if k[0:4] != "loss" and k not in vae_ignore_keys} - model.first_stage_model.load_state_dict(vae_dict_1) + load_vae_dict(model, vae_dict_1) - # If vae used is not in dict, update it - # It will be removed on refresh though - if vae_file is not None: + # If vae used is not in dict, update it + # It will be removed on refresh though vae_opt = get_filename(vae_file) if vae_opt not in vae_dict: vae_dict[vae_opt] = vae_file vae_list.append(vae_opt) + loaded_vae_file = vae_file + """ # Save current VAE to VAE settings, maybe? will it work? if save_settings: @@ -124,4 +166,45 @@ def load_vae(model, vae_file): """ first_load = False + + +# don't call this from outside +def load_vae_dict(model, vae_dict_1=None): + if vae_dict_1: + store_base_vae(model) + model.first_stage_model.load_state_dict(vae_dict_1) + else: + restore_base_vae() model.first_stage_model.to(devices.dtype_vae) + + +def reload_vae_weights(sd_model=None, vae_file="auto"): + from modules import lowvram, devices, sd_hijack + + if not sd_model: + sd_model = shared.sd_model + + checkpoint_info = sd_model.sd_checkpoint_info + checkpoint_file = checkpoint_info.filename + vae_file = resolve_vae(checkpoint_file, vae_file=vae_file) + + if loaded_vae_file == vae_file: + return + + if shared.cmd_opts.lowvram or shared.cmd_opts.medvram: + lowvram.send_everything_to_cpu() + else: + sd_model.to(devices.cpu) + + sd_hijack.model_hijack.undo_hijack(sd_model) + + load_vae(sd_model, vae_file) + + sd_hijack.model_hijack.hijack(sd_model) + script_callbacks.model_loaded_callback(sd_model) + + if not shared.cmd_opts.lowvram and not shared.cmd_opts.medvram: + sd_model.to(devices.device) + + print(f"VAE Weights loaded.") + return sd_model |