Merge pull request #11821 from AUTOMATIC1111/lora_lyco

lora extension rework to include other types of networks

README.md

@@ -168,5 +168,6 @@ Licenses for borrowed code can be found in `Settings -> Licenses` screen, and al
 - Security advice - RyotaK
 - UniPC sampler - Wenliang Zhao - https://github.com/wl-zhao/UniPC
 - TAESD - Ollin Boer Bohan - https://github.com/madebyollin/taesd
+- LyCORIS - KohakuBlueleaf
 - Initial Gradio script - posted on 4chan by an Anonymous user. Thank you Anonymous user.
 - (You)

extensions-builtin/Lora/extra_networks_lora.py

@@ -1,5 +1,5 @@
 from modules import extra_networks, shared
-import lora
+import networks
 
 
 class ExtraNetworkLora(extra_networks.ExtraNetwork):
@@ -9,24 +9,38 @@ class ExtraNetworkLora(extra_networks.ExtraNetwork):
     def activate(self, p, params_list):
         additional = shared.opts.sd_lora
 
-        if additional != "None" and additional in lora.available_loras and not any(x for x in params_list if x.items[0] == additional):
+        if additional != "None" and additional in networks.available_networks and not any(x for x in params_list if x.items[0] == additional):
             p.all_prompts = [x + f"<lora:{additional}:{shared.opts.extra_networks_default_multiplier}>" for x in p.all_prompts]
             params_list.append(extra_networks.ExtraNetworkParams(items=[additional, shared.opts.extra_networks_default_multiplier]))
 
         names = []
-        multipliers = []
+        te_multipliers = []
+        unet_multipliers = []
+        dyn_dims = []
         for params in params_list:
             assert params.items
 
-            names.append(params.items[0])
+            names.append(params.positional[0])
-            multipliers.append(float(params.items[1]) if len(params.items) > 1 else 1.0)
 
-        lora.load_loras(names, multipliers)
+            te_multiplier = float(params.positional[1]) if len(params.positional) > 1 else 1.0
+            te_multiplier = float(params.named.get("te", te_multiplier))
+
+            unet_multiplier = float(params.positional[2]) if len(params.positional) > 2 else 1.0
+            unet_multiplier = float(params.named.get("unet", unet_multiplier))
+
+            dyn_dim = int(params.positional[3]) if len(params.positional) > 3 else None
+            dyn_dim = int(params.named["dyn"]) if "dyn" in params.named else dyn_dim
+
+            te_multipliers.append(te_multiplier)
+            unet_multipliers.append(unet_multiplier)
+            dyn_dims.append(dyn_dim)
+
+        networks.load_networks(names, te_multipliers, unet_multipliers, dyn_dims)
 
         if shared.opts.lora_add_hashes_to_infotext:
-            lora_hashes = []
+            network_hashes = []
-            for item in lora.loaded_loras:
+            for item in networks.loaded_networks:
-                shorthash = item.lora_on_disk.shorthash
+                shorthash = item.network_on_disk.shorthash
                 if not shorthash:
                     continue
 
@@ -36,10 +50,10 @@ class ExtraNetworkLora(extra_networks.ExtraNetwork):
 
                 alias = alias.replace(":", "").replace(",", "")
 
-                lora_hashes.append(f"{alias}: {shorthash}")
+                network_hashes.append(f"{alias}: {shorthash}")
 
-            if lora_hashes:
+            if network_hashes:
-                p.extra_generation_params["Lora hashes"] = ", ".join(lora_hashes)
+                p.extra_generation_params["Lora hashes"] = ", ".join(network_hashes)
 
     def deactivate(self, p):
         pass

extensions-builtin/Lora/lora.py

@@ -1,537 +1,9 @@
-import os
+import networks
-import re
-import torch
-from typing import Union
 
-from modules import shared, devices, sd_models, errors, scripts, sd_hijack, hashes, cache
+list_available_loras = networks.list_available_networks
 
-metadata_tags_order = {"ss_sd_model_name": 1, "ss_resolution": 2, "ss_clip_skip": 3, "ss_num_train_images": 10, "ss_tag_frequency": 20}
+available_loras = networks.available_networks
-
+available_lora_aliases = networks.available_network_aliases
-re_digits = re.compile(r"\d+")
+available_lora_hash_lookup = networks.available_network_hash_lookup
-re_x_proj = re.compile(r"(.*)_([qkv]_proj)$")
+forbidden_lora_aliases = networks.forbidden_network_aliases
-re_compiled = {}
+loaded_loras = networks.loaded_networks
-
-suffix_conversion = {
-    "attentions": {},
-    "resnets": {
-        "conv1": "in_layers_2",
-        "conv2": "out_layers_3",
-        "time_emb_proj": "emb_layers_1",
-        "conv_shortcut": "skip_connection",
-    }
-}
-
-
-def convert_diffusers_name_to_compvis(key, is_sd2):
-    def match(match_list, regex_text):
-        regex = re_compiled.get(regex_text)
-        if regex is None:
-            regex = re.compile(regex_text)
-            re_compiled[regex_text] = regex
-
-        r = re.match(regex, key)
-        if not r:
-            return False
-
-        match_list.clear()
-        match_list.extend([int(x) if re.match(re_digits, x) else x for x in r.groups()])
-        return True
-
-    m = []
-
-    if match(m, r"lora_unet_down_blocks_(\d+)_(attentions|resnets)_(\d+)_(.+)"):
-        suffix = suffix_conversion.get(m[1], {}).get(m[3], m[3])
-        return f"diffusion_model_input_blocks_{1 + m[0] * 3 + m[2]}_{1 if m[1] == 'attentions' else 0}_{suffix}"
-
-    if match(m, r"lora_unet_mid_block_(attentions|resnets)_(\d+)_(.+)"):
-        suffix = suffix_conversion.get(m[0], {}).get(m[2], m[2])
-        return f"diffusion_model_middle_block_{1 if m[0] == 'attentions' else m[1] * 2}_{suffix}"
-
-    if match(m, r"lora_unet_up_blocks_(\d+)_(attentions|resnets)_(\d+)_(.+)"):
-        suffix = suffix_conversion.get(m[1], {}).get(m[3], m[3])
-        return f"diffusion_model_output_blocks_{m[0] * 3 + m[2]}_{1 if m[1] == 'attentions' else 0}_{suffix}"
-
-    if match(m, r"lora_unet_down_blocks_(\d+)_downsamplers_0_conv"):
-        return f"diffusion_model_input_blocks_{3 + m[0] * 3}_0_op"
-
-    if match(m, r"lora_unet_up_blocks_(\d+)_upsamplers_0_conv"):
-        return f"diffusion_model_output_blocks_{2 + m[0] * 3}_{2 if m[0]>0 else 1}_conv"
-
-    if match(m, r"lora_te_text_model_encoder_layers_(\d+)_(.+)"):
-        if is_sd2:
-            if 'mlp_fc1' in m[1]:
-                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc1', 'mlp_c_fc')}"
-            elif 'mlp_fc2' in m[1]:
-                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc2', 'mlp_c_proj')}"
-            else:
-                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('self_attn', 'attn')}"
-
-        return f"transformer_text_model_encoder_layers_{m[0]}_{m[1]}"
-
-    if match(m, r"lora_te2_text_model_encoder_layers_(\d+)_(.+)"):
-        if 'mlp_fc1' in m[1]:
-            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc1', 'mlp_c_fc')}"
-        elif 'mlp_fc2' in m[1]:
-            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc2', 'mlp_c_proj')}"
-        else:
-            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('self_attn', 'attn')}"
-
-    return key
-
-
-class LoraOnDisk:
-    def __init__(self, name, filename):
-        self.name = name
-        self.filename = filename
-        self.metadata = {}
-        self.is_safetensors = os.path.splitext(filename)[1].lower() == ".safetensors"
-
-        def read_metadata():
-            metadata = sd_models.read_metadata_from_safetensors(filename)
-            metadata.pop('ssmd_cover_images', None)  # those are cover images, and they are too big to display in UI as text
-
-            return metadata
-
-        if self.is_safetensors:
-            try:
-                self.metadata = cache.cached_data_for_file('safetensors-metadata', "lora/" + self.name, filename, read_metadata)
-            except Exception as e:
-                errors.display(e, f"reading lora {filename}")
-
-        if self.metadata:
-            m = {}
-            for k, v in sorted(self.metadata.items(), key=lambda x: metadata_tags_order.get(x[0], 999)):
-                m[k] = v
-
-            self.metadata = m
-
-        self.alias = self.metadata.get('ss_output_name', self.name)
-
-        self.hash = None
-        self.shorthash = None
-        self.set_hash(
-            self.metadata.get('sshs_model_hash') or
-            hashes.sha256_from_cache(self.filename, "lora/" + self.name, use_addnet_hash=self.is_safetensors) or
-            ''
-        )
-
-    def set_hash(self, v):
-        self.hash = v
-        self.shorthash = self.hash[0:12]
-
-        if self.shorthash:
-            available_lora_hash_lookup[self.shorthash] = self
-
-    def read_hash(self):
-        if not self.hash:
-            self.set_hash(hashes.sha256(self.filename, "lora/" + self.name, use_addnet_hash=self.is_safetensors) or '')
-
-    def get_alias(self):
-        if shared.opts.lora_preferred_name == "Filename" or self.alias.lower() in forbidden_lora_aliases:
-            return self.name
-        else:
-            return self.alias
-
-
-class LoraModule:
-    def __init__(self, name, lora_on_disk: LoraOnDisk):
-        self.name = name
-        self.lora_on_disk = lora_on_disk
-        self.multiplier = 1.0
-        self.modules = {}
-        self.mtime = None
-
-        self.mentioned_name = None
-        """the text that was used to add lora to prompt - can be either name or an alias"""
-
-
-class LoraUpDownModule:
-    def __init__(self):
-        self.up = None
-        self.down = None
-        self.alpha = None
-
-
-def assign_lora_names_to_compvis_modules(sd_model):
-    lora_layer_mapping = {}
-
-    if shared.sd_model.is_sdxl:
-        for i, embedder in enumerate(shared.sd_model.conditioner.embedders):
-            if not hasattr(embedder, 'wrapped'):
-                continue
-
-            for name, module in embedder.wrapped.named_modules():
-                lora_name = f'{i}_{name.replace(".", "_")}'
-                lora_layer_mapping[lora_name] = module
-                module.lora_layer_name = lora_name
-    else:
-        for name, module in shared.sd_model.cond_stage_model.wrapped.named_modules():
-            lora_name = name.replace(".", "_")
-            lora_layer_mapping[lora_name] = module
-            module.lora_layer_name = lora_name
-
-    for name, module in shared.sd_model.model.named_modules():
-        lora_name = name.replace(".", "_")
-        lora_layer_mapping[lora_name] = module
-        module.lora_layer_name = lora_name
-
-    sd_model.lora_layer_mapping = lora_layer_mapping
-
-
-def load_lora(name, lora_on_disk):
-    lora = LoraModule(name, lora_on_disk)
-    lora.mtime = os.path.getmtime(lora_on_disk.filename)
-
-    sd = sd_models.read_state_dict(lora_on_disk.filename)
-
-    # this should not be needed but is here as an emergency fix for an unknown error people are experiencing in 1.2.0
-    if not hasattr(shared.sd_model, 'lora_layer_mapping'):
-        assign_lora_names_to_compvis_modules(shared.sd_model)
-
-    keys_failed_to_match = {}
-    is_sd2 = 'model_transformer_resblocks' in shared.sd_model.lora_layer_mapping
-
-    for key_lora, weight in sd.items():
-        key_lora_without_lora_parts, lora_key = key_lora.split(".", 1)
-
-        key = convert_diffusers_name_to_compvis(key_lora_without_lora_parts, is_sd2)
-        sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
-
-        if sd_module is None:
-            m = re_x_proj.match(key)
-            if m:
-                sd_module = shared.sd_model.lora_layer_mapping.get(m.group(1), None)
-
-        # SDXL loras seem to already have correct compvis keys, so only need to replace "lora_unet" with "diffusion_model"
-        if sd_module is None and "lora_unet" in key_lora_without_lora_parts:
-            key = key_lora_without_lora_parts.replace("lora_unet", "diffusion_model")
-            sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
-        elif sd_module is None and "lora_te1_text_model" in key_lora_without_lora_parts:
-            key = key_lora_without_lora_parts.replace("lora_te1_text_model", "0_transformer_text_model")
-            sd_module = shared.sd_model.lora_layer_mapping.get(key, None)
-
-        if sd_module is None:
-            keys_failed_to_match[key_lora] = key
-            continue
-
-        lora_module = lora.modules.get(key, None)
-        if lora_module is None:
-            lora_module = LoraUpDownModule()
-            lora.modules[key] = lora_module
-
-        if lora_key == "alpha":
-            lora_module.alpha = weight.item()
-            continue
-
-        if type(sd_module) == torch.nn.Linear:
-            module = torch.nn.Linear(weight.shape[1], weight.shape[0], bias=False)
-        elif type(sd_module) == torch.nn.modules.linear.NonDynamicallyQuantizableLinear:
-            module = torch.nn.Linear(weight.shape[1], weight.shape[0], bias=False)
-        elif type(sd_module) == torch.nn.MultiheadAttention:
-            module = torch.nn.Linear(weight.shape[1], weight.shape[0], bias=False)
-        elif type(sd_module) == torch.nn.Conv2d and weight.shape[2:] == (1, 1):
-            module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], (1, 1), bias=False)
-        elif type(sd_module) == torch.nn.Conv2d and weight.shape[2:] == (3, 3):
-            module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], (3, 3), bias=False)
-        else:
-            print(f'Lora layer {key_lora} matched a layer with unsupported type: {type(sd_module).__name__}')
-            continue
-            raise AssertionError(f"Lora layer {key_lora} matched a layer with unsupported type: {type(sd_module).__name__}")
-
-        with torch.no_grad():
-            module.weight.copy_(weight)
-
-        module.to(device=devices.cpu, dtype=devices.dtype)
-
-        if lora_key == "lora_up.weight":
-            lora_module.up = module
-        elif lora_key == "lora_down.weight":
-            lora_module.down = module
-        else:
-            raise AssertionError(f"Bad Lora layer name: {key_lora} - must end in lora_up.weight, lora_down.weight or alpha")
-
-    if keys_failed_to_match:
-        print(f"Failed to match keys when loading Lora {lora_on_disk.filename}: {keys_failed_to_match}")
-
-    return lora
-
-
-def load_loras(names, multipliers=None):
-    already_loaded = {}
-
-    for lora in loaded_loras:
-        if lora.name in names:
-            already_loaded[lora.name] = lora
-
-    loaded_loras.clear()
-
-    loras_on_disk = [available_lora_aliases.get(name, None) for name in names]
-    if any(x is None for x in loras_on_disk):
-        list_available_loras()
-
-        loras_on_disk = [available_lora_aliases.get(name, None) for name in names]
-
-    failed_to_load_loras = []
-
-    for i, name in enumerate(names):
-        lora = already_loaded.get(name, None)
-
-        lora_on_disk = loras_on_disk[i]
-
-        if lora_on_disk is not None:
-            if lora is None or os.path.getmtime(lora_on_disk.filename) > lora.mtime:
-                try:
-                    lora = load_lora(name, lora_on_disk)
-                except Exception as e:
-                    errors.display(e, f"loading Lora {lora_on_disk.filename}")
-                    continue
-
-            lora.mentioned_name = name
-
-            lora_on_disk.read_hash()
-
-        if lora is None:
-            failed_to_load_loras.append(name)
-            print(f"Couldn't find Lora with name {name}")
-            continue
-
-        lora.multiplier = multipliers[i] if multipliers else 1.0
-        loaded_loras.append(lora)
-
-    if failed_to_load_loras:
-        sd_hijack.model_hijack.comments.append("Failed to find Loras: " + ", ".join(failed_to_load_loras))
-
-
-def lora_calc_updown(lora, module, target):
-    with torch.no_grad():
-        up = module.up.weight.to(target.device, dtype=target.dtype)
-        down = module.down.weight.to(target.device, dtype=target.dtype)
-
-        if up.shape[2:] == (1, 1) and down.shape[2:] == (1, 1):
-            updown = (up.squeeze(2).squeeze(2) @ down.squeeze(2).squeeze(2)).unsqueeze(2).unsqueeze(3)
-        elif up.shape[2:] == (3, 3) or down.shape[2:] == (3, 3):
-            updown = torch.nn.functional.conv2d(down.permute(1, 0, 2, 3), up).permute(1, 0, 2, 3)
-        else:
-            updown = up @ down
-
-        updown = updown * lora.multiplier * (module.alpha / module.up.weight.shape[1] if module.alpha else 1.0)
-
-        return updown
-
-
-def lora_restore_weights_from_backup(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn.MultiheadAttention]):
-    weights_backup = getattr(self, "lora_weights_backup", None)
-
-    if weights_backup is None:
-        return
-
-    if isinstance(self, torch.nn.MultiheadAttention):
-        self.in_proj_weight.copy_(weights_backup[0])
-        self.out_proj.weight.copy_(weights_backup[1])
-    else:
-        self.weight.copy_(weights_backup)
-
-
-def lora_apply_weights(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn.MultiheadAttention]):
-    """
-    Applies the currently selected set of Loras to the weights of torch layer self.
-    If weights already have this particular set of loras applied, does nothing.
-    If not, restores orginal weights from backup and alters weights according to loras.
-    """
-
-    lora_layer_name = getattr(self, 'lora_layer_name', None)
-    if lora_layer_name is None:
-        return
-
-    current_names = getattr(self, "lora_current_names", ())
-    wanted_names = tuple((x.name, x.multiplier) for x in loaded_loras)
-
-    weights_backup = getattr(self, "lora_weights_backup", None)
-    if weights_backup is None:
-        if isinstance(self, torch.nn.MultiheadAttention):
-            weights_backup = (self.in_proj_weight.to(devices.cpu, copy=True), self.out_proj.weight.to(devices.cpu, copy=True))
-        else:
-            weights_backup = self.weight.to(devices.cpu, copy=True)
-
-        self.lora_weights_backup = weights_backup
-
-    if current_names != wanted_names:
-        lora_restore_weights_from_backup(self)
-
-        for lora in loaded_loras:
-            module = lora.modules.get(lora_layer_name, None)
-            if module is not None and hasattr(self, 'weight'):
-                self.weight += lora_calc_updown(lora, module, self.weight)
-                continue
-
-            module_q = lora.modules.get(lora_layer_name + "_q_proj", None)
-            module_k = lora.modules.get(lora_layer_name + "_k_proj", None)
-            module_v = lora.modules.get(lora_layer_name + "_v_proj", None)
-            module_out = lora.modules.get(lora_layer_name + "_out_proj", None)
-
-            if isinstance(self, torch.nn.MultiheadAttention) and module_q and module_k and module_v and module_out:
-                updown_q = lora_calc_updown(lora, module_q, self.in_proj_weight)
-                updown_k = lora_calc_updown(lora, module_k, self.in_proj_weight)
-                updown_v = lora_calc_updown(lora, module_v, self.in_proj_weight)
-                updown_qkv = torch.vstack([updown_q, updown_k, updown_v])
-
-                self.in_proj_weight += updown_qkv
-                self.out_proj.weight += lora_calc_updown(lora, module_out, self.out_proj.weight)
-                continue
-
-            if module is None:
-                continue
-
-            print(f'failed to calculate lora weights for layer {lora_layer_name}')
-
-        self.lora_current_names = wanted_names
-
-
-def lora_forward(module, input, original_forward):
-    """
-    Old way of applying Lora by executing operations during layer's forward.
-    Stacking many loras this way results in big performance degradation.
-    """
-
-    if len(loaded_loras) == 0:
-        return original_forward(module, input)
-
-    input = devices.cond_cast_unet(input)
-
-    lora_restore_weights_from_backup(module)
-    lora_reset_cached_weight(module)
-
-    res = original_forward(module, input)
-
-    lora_layer_name = getattr(module, 'lora_layer_name', None)
-    for lora in loaded_loras:
-        module = lora.modules.get(lora_layer_name, None)
-        if module is None:
-            continue
-
-        module.up.to(device=devices.device)
-        module.down.to(device=devices.device)
-
-        res = res + module.up(module.down(input)) * lora.multiplier * (module.alpha / module.up.weight.shape[1] if module.alpha else 1.0)
-
-    return res
-
-
-def lora_reset_cached_weight(self: Union[torch.nn.Conv2d, torch.nn.Linear]):
-    self.lora_current_names = ()
-    self.lora_weights_backup = None
-
-
-def lora_Linear_forward(self, input):
-    if shared.opts.lora_functional:
-        return lora_forward(self, input, torch.nn.Linear_forward_before_lora)
-
-    lora_apply_weights(self)
-
-    return torch.nn.Linear_forward_before_lora(self, input)
-
-
-def lora_Linear_load_state_dict(self, *args, **kwargs):
-    lora_reset_cached_weight(self)
-
-    return torch.nn.Linear_load_state_dict_before_lora(self, *args, **kwargs)
-
-
-def lora_Conv2d_forward(self, input):
-    if shared.opts.lora_functional:
-        return lora_forward(self, input, torch.nn.Conv2d_forward_before_lora)
-
-    lora_apply_weights(self)
-
-    return torch.nn.Conv2d_forward_before_lora(self, input)
-
-
-def lora_Conv2d_load_state_dict(self, *args, **kwargs):
-    lora_reset_cached_weight(self)
-
-    return torch.nn.Conv2d_load_state_dict_before_lora(self, *args, **kwargs)
-
-
-def lora_MultiheadAttention_forward(self, *args, **kwargs):
-    lora_apply_weights(self)
-
-    return torch.nn.MultiheadAttention_forward_before_lora(self, *args, **kwargs)
-
-
-def lora_MultiheadAttention_load_state_dict(self, *args, **kwargs):
-    lora_reset_cached_weight(self)
-
-    return torch.nn.MultiheadAttention_load_state_dict_before_lora(self, *args, **kwargs)
-
-
-def list_available_loras():
-    available_loras.clear()
-    available_lora_aliases.clear()
-    forbidden_lora_aliases.clear()
-    available_lora_hash_lookup.clear()
-    forbidden_lora_aliases.update({"none": 1, "Addams": 1})
-
-    os.makedirs(shared.cmd_opts.lora_dir, exist_ok=True)
-
-    candidates = list(shared.walk_files(shared.cmd_opts.lora_dir, allowed_extensions=[".pt", ".ckpt", ".safetensors"]))
-    for filename in candidates:
-        if os.path.isdir(filename):
-            continue
-
-        name = os.path.splitext(os.path.basename(filename))[0]
-        try:
-            entry = LoraOnDisk(name, filename)
-        except OSError:  # should catch FileNotFoundError and PermissionError etc.
-            errors.report(f"Failed to load LoRA {name} from {filename}", exc_info=True)
-            continue
-
-        available_loras[name] = entry
-
-        if entry.alias in available_lora_aliases:
-            forbidden_lora_aliases[entry.alias.lower()] = 1
-
-        available_lora_aliases[name] = entry
-        available_lora_aliases[entry.alias] = entry
-
-
-re_lora_name = re.compile(r"(.*)\s*\([0-9a-fA-F]+\)")
-
-
-def infotext_pasted(infotext, params):
-    if "AddNet Module 1" in [x[1] for x in scripts.scripts_txt2img.infotext_fields]:
-        return  # if the other extension is active, it will handle those fields, no need to do anything
-
-    added = []
-
-    for k in params:
-        if not k.startswith("AddNet Model "):
-            continue
-
-        num = k[13:]
-
-        if params.get("AddNet Module " + num) != "LoRA":
-            continue
-
-        name = params.get("AddNet Model " + num)
-        if name is None:
-            continue
-
-        m = re_lora_name.match(name)
-        if m:
-            name = m.group(1)
-
-        multiplier = params.get("AddNet Weight A " + num, "1.0")
-
-        added.append(f"<lora:{name}:{multiplier}>")
-
-    if added:
-        params["Prompt"] += "\n" + "".join(added)
-
-
-available_loras = {}
-available_lora_aliases = {}
-available_lora_hash_lookup = {}
-forbidden_lora_aliases = {}
-loaded_loras = []
-
-list_available_loras()

extensions-builtin/Lora/lyco_helpers.py

@@ -0,0 +1,21 @@
+import torch
+
+
+def make_weight_cp(t, wa, wb):
+    temp = torch.einsum('i j k l, j r -> i r k l', t, wb)
+    return torch.einsum('i j k l, i r -> r j k l', temp, wa)
+
+
+def rebuild_conventional(up, down, shape, dyn_dim=None):
+    up = up.reshape(up.size(0), -1)
+    down = down.reshape(down.size(0), -1)
+    if dyn_dim is not None:
+        up = up[:, :dyn_dim]
+        down = down[:dyn_dim, :]
+    return (up @ down).reshape(shape)
+
+
+def rebuild_cp_decomposition(up, down, mid):
+    up = up.reshape(up.size(0), -1)
+    down = down.reshape(down.size(0), -1)
+    return torch.einsum('n m k l, i n, m j -> i j k l', mid, up, down)

extensions-builtin/Lora/network.py

@@ -0,0 +1,134 @@
+import os
+from collections import namedtuple
+
+from modules import sd_models, cache, errors, hashes, shared
+
+NetworkWeights = namedtuple('NetworkWeights', ['network_key', 'sd_key', 'w', 'sd_module'])
+
+metadata_tags_order = {"ss_sd_model_name": 1, "ss_resolution": 2, "ss_clip_skip": 3, "ss_num_train_images": 10, "ss_tag_frequency": 20}
+
+
+class NetworkOnDisk:
+    def __init__(self, name, filename):
+        self.name = name
+        self.filename = filename
+        self.metadata = {}
+        self.is_safetensors = os.path.splitext(filename)[1].lower() == ".safetensors"
+
+        def read_metadata():
+            metadata = sd_models.read_metadata_from_safetensors(filename)
+            metadata.pop('ssmd_cover_images', None)  # those are cover images, and they are too big to display in UI as text
+
+            return metadata
+
+        if self.is_safetensors:
+            try:
+                self.metadata = cache.cached_data_for_file('safetensors-metadata', "lora/" + self.name, filename, read_metadata)
+            except Exception as e:
+                errors.display(e, f"reading lora {filename}")
+
+        if self.metadata:
+            m = {}
+            for k, v in sorted(self.metadata.items(), key=lambda x: metadata_tags_order.get(x[0], 999)):
+                m[k] = v
+
+            self.metadata = m
+
+        self.alias = self.metadata.get('ss_output_name', self.name)
+
+        self.hash = None
+        self.shorthash = None
+        self.set_hash(
+            self.metadata.get('sshs_model_hash') or
+            hashes.sha256_from_cache(self.filename, "lora/" + self.name, use_addnet_hash=self.is_safetensors) or
+            ''
+        )
+
+    def set_hash(self, v):
+        self.hash = v
+        self.shorthash = self.hash[0:12]
+
+        if self.shorthash:
+            import networks
+            networks.available_network_hash_lookup[self.shorthash] = self
+
+    def read_hash(self):
+        if not self.hash:
+            self.set_hash(hashes.sha256(self.filename, "lora/" + self.name, use_addnet_hash=self.is_safetensors) or '')
+
+    def get_alias(self):
+        import networks
+        if shared.opts.lora_preferred_name == "Filename" or self.alias.lower() in networks.forbidden_network_aliases:
+            return self.name
+        else:
+            return self.alias
+
+
+class Network:  # LoraModule
+    def __init__(self, name, network_on_disk: NetworkOnDisk):
+        self.name = name
+        self.network_on_disk = network_on_disk
+        self.te_multiplier = 1.0
+        self.unet_multiplier = 1.0
+        self.dyn_dim = None
+        self.modules = {}
+        self.mtime = None
+
+        self.mentioned_name = None
+        """the text that was used to add the network to prompt - can be either name or an alias"""
+
+
+class ModuleType:
+    def create_module(self, net: Network, weights: NetworkWeights) -> Network | None:
+        return None
+
+
+class NetworkModule:
+    def __init__(self, net: Network, weights: NetworkWeights):
+        self.network = net
+        self.network_key = weights.network_key
+        self.sd_key = weights.sd_key
+        self.sd_module = weights.sd_module
+
+        if hasattr(self.sd_module, 'weight'):
+            self.shape = self.sd_module.weight.shape
+
+        self.dim = None
+        self.bias = weights.w.get("bias")
+        self.alpha = weights.w["alpha"].item() if "alpha" in weights.w else None
+        self.scale = weights.w["scale"].item() if "scale" in weights.w else None
+
+    def multiplier(self):
+        if 'transformer' in self.sd_key[:20]:
+            return self.network.te_multiplier
+        else:
+            return self.network.unet_multiplier
+
+    def calc_scale(self):
+        if self.scale is not None:
+            return self.scale
+        if self.dim is not None and self.alpha is not None:
+            return self.alpha / self.dim
+
+        return 1.0
+
+    def finalize_updown(self, updown, orig_weight, output_shape):
+        if self.bias is not None:
+            updown = updown.reshape(self.bias.shape)
+            updown += self.bias.to(orig_weight.device, dtype=orig_weight.dtype)
+            updown = updown.reshape(output_shape)
+
+        if len(output_shape) == 4:
+            updown = updown.reshape(output_shape)
+
+        if orig_weight.size().numel() == updown.size().numel():
+            updown = updown.reshape(orig_weight.shape)
+
+        return updown * self.calc_scale() * self.multiplier()
+
+    def calc_updown(self, target):
+        raise NotImplementedError()
+
+    def forward(self, x, y):
+        raise NotImplementedError()
+

extensions-builtin/Lora/network_full.py

@@ -0,0 +1,22 @@
+import network
+
+
+class ModuleTypeFull(network.ModuleType):
+    def create_module(self, net: network.Network, weights: network.NetworkWeights):
+        if all(x in weights.w for x in ["diff"]):
+            return NetworkModuleFull(net, weights)
+
+        return None
+
+
+class NetworkModuleFull(network.NetworkModule):
+    def __init__(self,  net: network.Network, weights: network.NetworkWeights):
+        super().__init__(net, weights)
+
+        self.weight = weights.w.get("diff")
+
+    def calc_updown(self, orig_weight):
+        output_shape = self.weight.shape
+        updown = self.weight.to(orig_weight.device, dtype=orig_weight.dtype)
+
+        return self.finalize_updown(updown, orig_weight, output_shape)

extensions-builtin/Lora/network_hada.py

@@ -0,0 +1,55 @@
+import lyco_helpers
+import network
+
+
+class ModuleTypeHada(network.ModuleType):
+    def create_module(self, net: network.Network, weights: network.NetworkWeights):
+        if all(x in weights.w for x in ["hada_w1_a", "hada_w1_b", "hada_w2_a", "hada_w2_b"]):
+            return NetworkModuleHada(net, weights)
+
+        return None
+
+
+class NetworkModuleHada(network.NetworkModule):
+    def __init__(self,  net: network.Network, weights: network.NetworkWeights):
+        super().__init__(net, weights)
+
+        if hasattr(self.sd_module, 'weight'):
+            self.shape = self.sd_module.weight.shape
+
+        self.w1a = weights.w["hada_w1_a"]
+        self.w1b = weights.w["hada_w1_b"]
+        self.dim = self.w1b.shape[0]
+        self.w2a = weights.w["hada_w2_a"]
+        self.w2b = weights.w["hada_w2_b"]
+
+        self.t1 = weights.w.get("hada_t1")
+        self.t2 = weights.w.get("hada_t2")
+
+    def calc_updown(self, orig_weight):
+        w1a = self.w1a.to(orig_weight.device, dtype=orig_weight.dtype)
+        w1b = self.w1b.to(orig_weight.device, dtype=orig_weight.dtype)
+        w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
+        w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
+
+        output_shape = [w1a.size(0), w1b.size(1)]
+
+        if self.t1 is not None:
+            output_shape = [w1a.size(1), w1b.size(1)]
+            t1 = self.t1.to(orig_weight.device, dtype=orig_weight.dtype)
+            updown1 = lyco_helpers.make_weight_cp(t1, w1a, w1b)
+            output_shape += t1.shape[2:]
+        else:
+            if len(w1b.shape) == 4:
+                output_shape += w1b.shape[2:]
+            updown1 = lyco_helpers.rebuild_conventional(w1a, w1b, output_shape)
+
+        if self.t2 is not None:
+            t2 = self.t2.to(orig_weight.device, dtype=orig_weight.dtype)
+            updown2 = lyco_helpers.make_weight_cp(t2, w2a, w2b)
+        else:
+            updown2 = lyco_helpers.rebuild_conventional(w2a, w2b, output_shape)
+
+        updown = updown1 * updown2
+
+        return self.finalize_updown(updown, orig_weight, output_shape)

extensions-builtin/Lora/network_ia3.py

@@ -0,0 +1,30 @@
+import network
+
+
+class ModuleTypeIa3(network.ModuleType):
+    def create_module(self, net: network.Network, weights: network.NetworkWeights):
+        if all(x in weights.w for x in ["weight"]):
+            return NetworkModuleIa3(net, weights)
+
+        return None
+
+
+class NetworkModuleIa3(network.NetworkModule):
+    def __init__(self,  net: network.Network, weights: network.NetworkWeights):
+        super().__init__(net, weights)
+
+        self.w = weights.w["weight"]
+        self.on_input = weights.w["on_input"].item()
+
+    def calc_updown(self, orig_weight):
+        w = self.w.to(orig_weight.device, dtype=orig_weight.dtype)
+
+        output_shape = [w.size(0), orig_weight.size(1)]
+        if self.on_input:
+            output_shape.reverse()
+        else:
+            w = w.reshape(-1, 1)
+
+        updown = orig_weight * w
+
+        return self.finalize_updown(updown, orig_weight, output_shape)

extensions-builtin/Lora/network_lokr.py

@@ -0,0 +1,64 @@
+import torch
+
+import lyco_helpers
+import network
+
+
+class ModuleTypeLokr(network.ModuleType):
+    def create_module(self, net: network.Network, weights: network.NetworkWeights):
+        has_1 = "lokr_w1" in weights.w or ("lokr_w1a" in weights.w and "lokr_w1b" in weights.w)
+        has_2 = "lokr_w2" in weights.w or ("lokr_w2a" in weights.w and "lokr_w2b" in weights.w)
+        if has_1 and has_2:
+            return NetworkModuleLokr(net, weights)
+
+        return None
+
+
+def make_kron(orig_shape, w1, w2):
+    if len(w2.shape) == 4:
+        w1 = w1.unsqueeze(2).unsqueeze(2)
+    w2 = w2.contiguous()
+    return torch.kron(w1, w2).reshape(orig_shape)
+
+
+class NetworkModuleLokr(network.NetworkModule):
+    def __init__(self,  net: network.Network, weights: network.NetworkWeights):
+        super().__init__(net, weights)
+
+        self.w1 = weights.w.get("lokr_w1")
+        self.w1a = weights.w.get("lokr_w1_a")
+        self.w1b = weights.w.get("lokr_w1_b")
+        self.dim = self.w1b.shape[0] if self.w1b else self.dim
+        self.w2 = weights.w.get("lokr_w2")
+        self.w2a = weights.w.get("lokr_w2_a")
+        self.w2b = weights.w.get("lokr_w2_b")
+        self.dim = self.w2b.shape[0] if self.w2b else self.dim
+        self.t2 = weights.w.get("lokr_t2")
+
+    def calc_updown(self, orig_weight):
+        if self.w1 is not None:
+            w1 = self.w1.to(orig_weight.device, dtype=orig_weight.dtype)
+        else:
+            w1a = self.w1a.to(orig_weight.device, dtype=orig_weight.dtype)
+            w1b = self.w1b.to(orig_weight.device, dtype=orig_weight.dtype)
+            w1 = w1a @ w1b
+
+        if self.w2 is not None:
+            w2 = self.w2.to(orig_weight.device, dtype=orig_weight.dtype)
+        elif self.t2 is None:
+            w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
+            w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
+            w2 = w2a @ w2b
+        else:
+            t2 = self.t2.to(orig_weight.device, dtype=orig_weight.dtype)
+            w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
+            w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
+            w2 = lyco_helpers.make_weight_cp(t2, w2a, w2b)
+
+        output_shape = [w1.size(0) * w2.size(0), w1.size(1) * w2.size(1)]
+        if len(orig_weight.shape) == 4:
+            output_shape = orig_weight.shape
+
+        updown = make_kron(output_shape, w1, w2)
+
+        return self.finalize_updown(updown, orig_weight, output_shape)

extensions-builtin/Lora/network_lora.py

@@ -0,0 +1,86 @@
+import torch
+
+import lyco_helpers
+import network
+from modules import devices
+
+
+class ModuleTypeLora(network.ModuleType):
+    def create_module(self, net: network.Network, weights: network.NetworkWeights):
+        if all(x in weights.w for x in ["lora_up.weight", "lora_down.weight"]):
+            return NetworkModuleLora(net, weights)
+
+        return None
+
+
+class NetworkModuleLora(network.NetworkModule):
+    def __init__(self,  net: network.Network, weights: network.NetworkWeights):
+        super().__init__(net, weights)
+
+        self.up_model = self.create_module(weights.w, "lora_up.weight")
+        self.down_model = self.create_module(weights.w, "lora_down.weight")
+        self.mid_model = self.create_module(weights.w, "lora_mid.weight", none_ok=True)
+
+        self.dim = weights.w["lora_down.weight"].shape[0]
+
+    def create_module(self, weights, key, none_ok=False):
+        weight = weights.get(key)
+
+        if weight is None and none_ok:
+            return None
+
+        is_linear = type(self.sd_module) in [torch.nn.Linear, torch.nn.modules.linear.NonDynamicallyQuantizableLinear, torch.nn.MultiheadAttention]
+        is_conv = type(self.sd_module) in [torch.nn.Conv2d]
+
+        if is_linear:
+            weight = weight.reshape(weight.shape[0], -1)
+            module = torch.nn.Linear(weight.shape[1], weight.shape[0], bias=False)
+        elif is_conv and key == "lora_down.weight" or key == "dyn_up":
+            if len(weight.shape) == 2:
+                weight = weight.reshape(weight.shape[0], -1, 1, 1)
+
+            if weight.shape[2] != 1 or weight.shape[3] != 1:
+                module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], self.sd_module.kernel_size, self.sd_module.stride, self.sd_module.padding, bias=False)
+            else:
+                module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], (1, 1), bias=False)
+        elif is_conv and key == "lora_mid.weight":
+            module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], self.sd_module.kernel_size, self.sd_module.stride, self.sd_module.padding, bias=False)
+        elif is_conv and key == "lora_up.weight" or key == "dyn_down":
+            module = torch.nn.Conv2d(weight.shape[1], weight.shape[0], (1, 1), bias=False)
+        else:
+            raise AssertionError(f'Lora layer {self.network_key} matched a layer with unsupported type: {type(self.sd_module).__name__}')
+
+        with torch.no_grad():
+            if weight.shape != module.weight.shape:
+                weight = weight.reshape(module.weight.shape)
+            module.weight.copy_(weight)
+
+        module.to(device=devices.cpu, dtype=devices.dtype)
+        module.weight.requires_grad_(False)
+
+        return module
+
+    def calc_updown(self, orig_weight):
+        up = self.up_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
+        down = self.down_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
+
+        output_shape = [up.size(0), down.size(1)]
+        if self.mid_model is not None:
+            # cp-decomposition
+            mid = self.mid_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
+            updown = lyco_helpers.rebuild_cp_decomposition(up, down, mid)
+            output_shape += mid.shape[2:]
+        else:
+            if len(down.shape) == 4:
+                output_shape += down.shape[2:]
+            updown = lyco_helpers.rebuild_conventional(up, down, output_shape, self.network.dyn_dim)
+
+        return self.finalize_updown(updown, orig_weight, output_shape)
+
+    def forward(self, x, y):
+        self.up_model.to(device=devices.device)
+        self.down_model.to(device=devices.device)
+
+        return y + self.up_model(self.down_model(x)) * self.multiplier() * self.calc_scale()
+
+

extensions-builtin/Lora/networks.py

@@ -0,0 +1,463 @@
+import os
+import re
+
+import network
+import network_lora
+import network_hada
+import network_ia3
+import network_lokr
+import network_full
+
+import torch
+from typing import Union
+
+from modules import shared, devices, sd_models, errors, scripts, sd_hijack, paths
+
+module_types = [
+    network_lora.ModuleTypeLora(),
+    network_hada.ModuleTypeHada(),
+    network_ia3.ModuleTypeIa3(),
+    network_lokr.ModuleTypeLokr(),
+    network_full.ModuleTypeFull(),
+]
+
+
+re_digits = re.compile(r"\d+")
+re_x_proj = re.compile(r"(.*)_([qkv]_proj)$")
+re_compiled = {}
+
+suffix_conversion = {
+    "attentions": {},
+    "resnets": {
+        "conv1": "in_layers_2",
+        "conv2": "out_layers_3",
+        "time_emb_proj": "emb_layers_1",
+        "conv_shortcut": "skip_connection",
+    }
+}
+
+
+def convert_diffusers_name_to_compvis(key, is_sd2):
+    def match(match_list, regex_text):
+        regex = re_compiled.get(regex_text)
+        if regex is None:
+            regex = re.compile(regex_text)
+            re_compiled[regex_text] = regex
+
+        r = re.match(regex, key)
+        if not r:
+            return False
+
+        match_list.clear()
+        match_list.extend([int(x) if re.match(re_digits, x) else x for x in r.groups()])
+        return True
+
+    m = []
+
+    if match(m, r"lora_unet_conv_in(.*)"):
+        return f'diffusion_model_input_blocks_0_0{m[0]}'
+
+    if match(m, r"lora_unet_conv_out(.*)"):
+        return f'diffusion_model_out_2{m[0]}'
+
+    if match(m, r"lora_unet_time_embedding_linear_(\d+)(.*)"):
+        return f"diffusion_model_time_embed_{m[0] * 2 - 2}{m[1]}"
+
+    if match(m, r"lora_unet_down_blocks_(\d+)_(attentions|resnets)_(\d+)_(.+)"):
+        suffix = suffix_conversion.get(m[1], {}).get(m[3], m[3])
+        return f"diffusion_model_input_blocks_{1 + m[0] * 3 + m[2]}_{1 if m[1] == 'attentions' else 0}_{suffix}"
+
+    if match(m, r"lora_unet_mid_block_(attentions|resnets)_(\d+)_(.+)"):
+        suffix = suffix_conversion.get(m[0], {}).get(m[2], m[2])
+        return f"diffusion_model_middle_block_{1 if m[0] == 'attentions' else m[1] * 2}_{suffix}"
+
+    if match(m, r"lora_unet_up_blocks_(\d+)_(attentions|resnets)_(\d+)_(.+)"):
+        suffix = suffix_conversion.get(m[1], {}).get(m[3], m[3])
+        return f"diffusion_model_output_blocks_{m[0] * 3 + m[2]}_{1 if m[1] == 'attentions' else 0}_{suffix}"
+
+    if match(m, r"lora_unet_down_blocks_(\d+)_downsamplers_0_conv"):
+        return f"diffusion_model_input_blocks_{3 + m[0] * 3}_0_op"
+
+    if match(m, r"lora_unet_up_blocks_(\d+)_upsamplers_0_conv"):
+        return f"diffusion_model_output_blocks_{2 + m[0] * 3}_{2 if m[0]>0 else 1}_conv"
+
+    if match(m, r"lora_te_text_model_encoder_layers_(\d+)_(.+)"):
+        if is_sd2:
+            if 'mlp_fc1' in m[1]:
+                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc1', 'mlp_c_fc')}"
+            elif 'mlp_fc2' in m[1]:
+                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc2', 'mlp_c_proj')}"
+            else:
+                return f"model_transformer_resblocks_{m[0]}_{m[1].replace('self_attn', 'attn')}"
+
+        return f"transformer_text_model_encoder_layers_{m[0]}_{m[1]}"
+
+    if match(m, r"lora_te2_text_model_encoder_layers_(\d+)_(.+)"):
+        if 'mlp_fc1' in m[1]:
+            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc1', 'mlp_c_fc')}"
+        elif 'mlp_fc2' in m[1]:
+            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('mlp_fc2', 'mlp_c_proj')}"
+        else:
+            return f"1_model_transformer_resblocks_{m[0]}_{m[1].replace('self_attn', 'attn')}"
+
+    return key
+
+
+def assign_network_names_to_compvis_modules(sd_model):
+    network_layer_mapping = {}
+
+    if shared.sd_model.is_sdxl:
+        for i, embedder in enumerate(shared.sd_model.conditioner.embedders):
+            if not hasattr(embedder, 'wrapped'):
+                continue
+
+            for name, module in embedder.wrapped.named_modules():
+                network_name = f'{i}_{name.replace(".", "_")}'
+                network_layer_mapping[network_name] = module
+                module.network_layer_name = network_name
+    else:
+        for name, module in shared.sd_model.cond_stage_model.wrapped.named_modules():
+            network_name = name.replace(".", "_")
+            network_layer_mapping[network_name] = module
+            module.network_layer_name = network_name
+
+    for name, module in shared.sd_model.model.named_modules():
+        network_name = name.replace(".", "_")
+        network_layer_mapping[network_name] = module
+        module.network_layer_name = network_name
+
+    sd_model.network_layer_mapping = network_layer_mapping
+
+
+def load_network(name, network_on_disk):
+    net = network.Network(name, network_on_disk)
+    net.mtime = os.path.getmtime(network_on_disk.filename)
+
+    sd = sd_models.read_state_dict(network_on_disk.filename)
+
+    # this should not be needed but is here as an emergency fix for an unknown error people are experiencing in 1.2.0
+    if not hasattr(shared.sd_model, 'network_layer_mapping'):
+        assign_network_names_to_compvis_modules(shared.sd_model)
+
+    keys_failed_to_match = {}
+    is_sd2 = 'model_transformer_resblocks' in shared.sd_model.network_layer_mapping
+
+    matched_networks = {}
+
+    for key_network, weight in sd.items():
+        key_network_without_network_parts, network_part = key_network.split(".", 1)
+
+        key = convert_diffusers_name_to_compvis(key_network_without_network_parts, is_sd2)
+        sd_module = shared.sd_model.network_layer_mapping.get(key, None)
+
+        if sd_module is None:
+            m = re_x_proj.match(key)
+            if m:
+                sd_module = shared.sd_model.network_layer_mapping.get(m.group(1), None)
+
+        # SDXL loras seem to already have correct compvis keys, so only need to replace "lora_unet" with "diffusion_model"
+        if sd_module is None and "lora_unet" in key_network_without_network_parts:
+            key = key_network_without_network_parts.replace("lora_unet", "diffusion_model")
+            sd_module = shared.sd_model.network_layer_mapping.get(key, None)
+        elif sd_module is None and "lora_te1_text_model" in key_network_without_network_parts:
+            key = key_network_without_network_parts.replace("lora_te1_text_model", "0_transformer_text_model")
+            sd_module = shared.sd_model.network_layer_mapping.get(key, None)
+
+        if sd_module is None:
+            keys_failed_to_match[key_network] = key
+            continue
+
+        if key not in matched_networks:
+            matched_networks[key] = network.NetworkWeights(network_key=key_network, sd_key=key, w={}, sd_module=sd_module)
+
+        matched_networks[key].w[network_part] = weight
+
+    for key, weights in matched_networks.items():
+        net_module = None
+        for nettype in module_types:
+            net_module = nettype.create_module(net, weights)
+            if net_module is not None:
+                break
+
+        if net_module is None:
+            raise AssertionError(f"Could not find a module type (out of {', '.join([x.__class__.__name__ for x in module_types])}) that would accept those keys: {', '.join(weights.w)}")
+
+        net.modules[key] = net_module
+
+    if keys_failed_to_match:
+        print(f"Failed to match keys when loading network {network_on_disk.filename}: {keys_failed_to_match}")
+
+    return net
+
+
+def load_networks(names, te_multipliers=None, unet_multipliers=None, dyn_dims=None):
+    already_loaded = {}
+
+    for net in loaded_networks:
+        if net.name in names:
+            already_loaded[net.name] = net
+
+    loaded_networks.clear()
+
+    networks_on_disk = [available_network_aliases.get(name, None) for name in names]
+    if any(x is None for x in networks_on_disk):
+        list_available_networks()
+
+        networks_on_disk = [available_network_aliases.get(name, None) for name in names]
+
+    failed_to_load_networks = []
+
+    for i, name in enumerate(names):
+        net = already_loaded.get(name, None)
+
+        network_on_disk = networks_on_disk[i]
+
+        if network_on_disk is not None:
+            if net is None or os.path.getmtime(network_on_disk.filename) > net.mtime:
+                try:
+                    net = load_network(name, network_on_disk)
+                except Exception as e:
+                    errors.display(e, f"loading network {network_on_disk.filename}")
+                    continue
+
+            net.mentioned_name = name
+
+            network_on_disk.read_hash()
+
+        if net is None:
+            failed_to_load_networks.append(name)
+            print(f"Couldn't find network with name {name}")
+            continue
+
+        net.te_multiplier = te_multipliers[i] if te_multipliers else 1.0
+        net.unet_multiplier = unet_multipliers[i] if unet_multipliers else 1.0
+        net.dyn_dim = dyn_dims[i] if dyn_dims else 1.0
+        loaded_networks.append(net)
+
+    if failed_to_load_networks:
+        sd_hijack.model_hijack.comments.append("Failed to find networks: " + ", ".join(failed_to_load_networks))
+
+
+def network_restore_weights_from_backup(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn.MultiheadAttention]):
+    weights_backup = getattr(self, "network_weights_backup", None)
+
+    if weights_backup is None:
+        return
+
+    if isinstance(self, torch.nn.MultiheadAttention):
+        self.in_proj_weight.copy_(weights_backup[0])
+        self.out_proj.weight.copy_(weights_backup[1])
+    else:
+        self.weight.copy_(weights_backup)
+
+
+def network_apply_weights(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn.MultiheadAttention]):
+    """
+    Applies the currently selected set of networks to the weights of torch layer self.
+    If weights already have this particular set of networks applied, does nothing.
+    If not, restores orginal weights from backup and alters weights according to networks.
+    """
+
+    network_layer_name = getattr(self, 'network_layer_name', None)
+    if network_layer_name is None:
+        return
+
+    current_names = getattr(self, "network_current_names", ())
+    wanted_names = tuple((x.name, x.te_multiplier, x.unet_multiplier, x.dyn_dim) for x in loaded_networks)
+
+    weights_backup = getattr(self, "network_weights_backup", None)
+    if weights_backup is None:
+        if isinstance(self, torch.nn.MultiheadAttention):
+            weights_backup = (self.in_proj_weight.to(devices.cpu, copy=True), self.out_proj.weight.to(devices.cpu, copy=True))
+        else:
+            weights_backup = self.weight.to(devices.cpu, copy=True)
+
+        self.network_weights_backup = weights_backup
+
+    if current_names != wanted_names:
+        network_restore_weights_from_backup(self)
+
+        for net in loaded_networks:
+            module = net.modules.get(network_layer_name, None)
+            if module is not None and hasattr(self, 'weight'):
+                with torch.no_grad():
+                    updown = module.calc_updown(self.weight)
+
+                    if len(self.weight.shape) == 4 and self.weight.shape[1] == 9:
+                        # inpainting model. zero pad updown to make channel[1]  4 to 9
+                        updown = torch.nn.functional.pad(updown, (0, 0, 0, 0, 0, 5))
+
+                    self.weight += updown
+                    continue
+
+            module_q = net.modules.get(network_layer_name + "_q_proj", None)
+            module_k = net.modules.get(network_layer_name + "_k_proj", None)
+            module_v = net.modules.get(network_layer_name + "_v_proj", None)
+            module_out = net.modules.get(network_layer_name + "_out_proj", None)
+
+            if isinstance(self, torch.nn.MultiheadAttention) and module_q and module_k and module_v and module_out:
+                with torch.no_grad():
+                    updown_q = module_q.calc_updown(self.in_proj_weight)
+                    updown_k = module_k.calc_updown(self.in_proj_weight)
+                    updown_v = module_v.calc_updown(self.in_proj_weight)
+                    updown_qkv = torch.vstack([updown_q, updown_k, updown_v])
+                    updown_out = module_out.calc_updown(self.out_proj.weight)
+
+                    self.in_proj_weight += updown_qkv
+                    self.out_proj.weight += updown_out
+                    continue
+
+            if module is None:
+                continue
+
+            print(f'failed to calculate network weights for layer {network_layer_name}')
+
+        self.network_current_names = wanted_names
+
+
+def network_forward(module, input, original_forward):
+    """
+    Old way of applying Lora by executing operations during layer's forward.
+    Stacking many loras this way results in big performance degradation.
+    """
+
+    if len(loaded_networks) == 0:
+        return original_forward(module, input)
+
+    input = devices.cond_cast_unet(input)
+
+    network_restore_weights_from_backup(module)
+    network_reset_cached_weight(module)
+
+    y = original_forward(module, input)
+
+    network_layer_name = getattr(module, 'network_layer_name', None)
+    for lora in loaded_networks:
+        module = lora.modules.get(network_layer_name, None)
+        if module is None:
+            continue
+
+        y = module.forward(y, input)
+
+    return y
+
+
+def network_reset_cached_weight(self: Union[torch.nn.Conv2d, torch.nn.Linear]):
+    self.network_current_names = ()
+    self.network_weights_backup = None
+
+
+def network_Linear_forward(self, input):
+    if shared.opts.lora_functional:
+        return network_forward(self, input, torch.nn.Linear_forward_before_network)
+
+    network_apply_weights(self)
+
+    return torch.nn.Linear_forward_before_network(self, input)
+
+
+def network_Linear_load_state_dict(self, *args, **kwargs):
+    network_reset_cached_weight(self)
+
+    return torch.nn.Linear_load_state_dict_before_network(self, *args, **kwargs)
+
+
+def network_Conv2d_forward(self, input):
+    if shared.opts.lora_functional:
+        return network_forward(self, input, torch.nn.Conv2d_forward_before_network)
+
+    network_apply_weights(self)
+
+    return torch.nn.Conv2d_forward_before_network(self, input)
+
+
+def network_Conv2d_load_state_dict(self, *args, **kwargs):
+    network_reset_cached_weight(self)
+
+    return torch.nn.Conv2d_load_state_dict_before_network(self, *args, **kwargs)
+
+
+def network_MultiheadAttention_forward(self, *args, **kwargs):
+    network_apply_weights(self)
+
+    return torch.nn.MultiheadAttention_forward_before_network(self, *args, **kwargs)
+
+
+def network_MultiheadAttention_load_state_dict(self, *args, **kwargs):
+    network_reset_cached_weight(self)
+
+    return torch.nn.MultiheadAttention_load_state_dict_before_network(self, *args, **kwargs)
+
+
+def list_available_networks():
+    available_networks.clear()
+    available_network_aliases.clear()
+    forbidden_network_aliases.clear()
+    available_network_hash_lookup.clear()
+    forbidden_network_aliases.update({"none": 1, "Addams": 1})
+
+    os.makedirs(shared.cmd_opts.lora_dir, exist_ok=True)
+
+    candidates = list(shared.walk_files(shared.cmd_opts.lora_dir, allowed_extensions=[".pt", ".ckpt", ".safetensors"]))
+    candidates += list(shared.walk_files(os.path.join(paths.models_path, "LyCORIS"), allowed_extensions=[".pt", ".ckpt", ".safetensors"]))
+    for filename in candidates:
+        if os.path.isdir(filename):
+            continue
+
+        name = os.path.splitext(os.path.basename(filename))[0]
+        try:
+            entry = network.NetworkOnDisk(name, filename)
+        except OSError:  # should catch FileNotFoundError and PermissionError etc.
+            errors.report(f"Failed to load network {name} from {filename}", exc_info=True)
+            continue
+
+        available_networks[name] = entry
+
+        if entry.alias in available_network_aliases:
+            forbidden_network_aliases[entry.alias.lower()] = 1
+
+        available_network_aliases[name] = entry
+        available_network_aliases[entry.alias] = entry
+
+
+re_network_name = re.compile(r"(.*)\s*\([0-9a-fA-F]+\)")
+
+
+def infotext_pasted(infotext, params):
+    if "AddNet Module 1" in [x[1] for x in scripts.scripts_txt2img.infotext_fields]:
+        return  # if the other extension is active, it will handle those fields, no need to do anything
+
+    added = []
+
+    for k in params:
+        if not k.startswith("AddNet Model "):
+            continue
+
+        num = k[13:]
+
+        if params.get("AddNet Module " + num) != "LoRA":
+            continue
+
+        name = params.get("AddNet Model " + num)
+        if name is None:
+            continue
+
+        m = re_network_name.match(name)
+        if m:
+            name = m.group(1)
+
+        multiplier = params.get("AddNet Weight A " + num, "1.0")
+
+        added.append(f"<lora:{name}:{multiplier}>")
+
+    if added:
+        params["Prompt"] += "\n" + "".join(added)
+
+
+available_networks = {}
+available_network_aliases = {}
+loaded_networks = []
+available_network_hash_lookup = {}
+forbidden_network_aliases = {}
+
+list_available_networks()

extensions-builtin/Lora/scripts/lora_script.py

@@ -4,69 +4,74 @@ import torch
 import gradio as gr
 from fastapi import FastAPI
 
-import lora
+import network
+import networks
+import lora  # noqa:F401
 import extra_networks_lora
 import ui_extra_networks_lora
 from modules import script_callbacks, ui_extra_networks, extra_networks, shared
 
 def unload():
-    torch.nn.Linear.forward = torch.nn.Linear_forward_before_lora
+    torch.nn.Linear.forward = torch.nn.Linear_forward_before_network
-    torch.nn.Linear._load_from_state_dict = torch.nn.Linear_load_state_dict_before_lora
+    torch.nn.Linear._load_from_state_dict = torch.nn.Linear_load_state_dict_before_network
-    torch.nn.Conv2d.forward = torch.nn.Conv2d_forward_before_lora
+    torch.nn.Conv2d.forward = torch.nn.Conv2d_forward_before_network
-    torch.nn.Conv2d._load_from_state_dict = torch.nn.Conv2d_load_state_dict_before_lora
+    torch.nn.Conv2d._load_from_state_dict = torch.nn.Conv2d_load_state_dict_before_network
-    torch.nn.MultiheadAttention.forward = torch.nn.MultiheadAttention_forward_before_lora
+    torch.nn.MultiheadAttention.forward = torch.nn.MultiheadAttention_forward_before_network
-    torch.nn.MultiheadAttention._load_from_state_dict = torch.nn.MultiheadAttention_load_state_dict_before_lora
+    torch.nn.MultiheadAttention._load_from_state_dict = torch.nn.MultiheadAttention_load_state_dict_before_network
 
 
 def before_ui():
     ui_extra_networks.register_page(ui_extra_networks_lora.ExtraNetworksPageLora())
-    extra_networks.register_extra_network(extra_networks_lora.ExtraNetworkLora())
+
+    extra_network = extra_networks_lora.ExtraNetworkLora()
+    extra_networks.register_extra_network(extra_network)
+    extra_networks.register_extra_network_alias(extra_network, "lyco")
 
 
-if not hasattr(torch.nn, 'Linear_forward_before_lora'):
+if not hasattr(torch.nn, 'Linear_forward_before_network'):
-    torch.nn.Linear_forward_before_lora = torch.nn.Linear.forward
+    torch.nn.Linear_forward_before_network = torch.nn.Linear.forward
 
-if not hasattr(torch.nn, 'Linear_load_state_dict_before_lora'):
+if not hasattr(torch.nn, 'Linear_load_state_dict_before_network'):
-    torch.nn.Linear_load_state_dict_before_lora = torch.nn.Linear._load_from_state_dict
+    torch.nn.Linear_load_state_dict_before_network = torch.nn.Linear._load_from_state_dict
 
-if not hasattr(torch.nn, 'Conv2d_forward_before_lora'):
+if not hasattr(torch.nn, 'Conv2d_forward_before_network'):
-    torch.nn.Conv2d_forward_before_lora = torch.nn.Conv2d.forward
+    torch.nn.Conv2d_forward_before_network = torch.nn.Conv2d.forward
 
-if not hasattr(torch.nn, 'Conv2d_load_state_dict_before_lora'):
+if not hasattr(torch.nn, 'Conv2d_load_state_dict_before_network'):
-    torch.nn.Conv2d_load_state_dict_before_lora = torch.nn.Conv2d._load_from_state_dict
+    torch.nn.Conv2d_load_state_dict_before_network = torch.nn.Conv2d._load_from_state_dict
 
-if not hasattr(torch.nn, 'MultiheadAttention_forward_before_lora'):
+if not hasattr(torch.nn, 'MultiheadAttention_forward_before_network'):
-    torch.nn.MultiheadAttention_forward_before_lora = torch.nn.MultiheadAttention.forward
+    torch.nn.MultiheadAttention_forward_before_network = torch.nn.MultiheadAttention.forward
 
-if not hasattr(torch.nn, 'MultiheadAttention_load_state_dict_before_lora'):
+if not hasattr(torch.nn, 'MultiheadAttention_load_state_dict_before_network'):
-    torch.nn.MultiheadAttention_load_state_dict_before_lora = torch.nn.MultiheadAttention._load_from_state_dict
+    torch.nn.MultiheadAttention_load_state_dict_before_network = torch.nn.MultiheadAttention._load_from_state_dict
 
-torch.nn.Linear.forward = lora.lora_Linear_forward
+torch.nn.Linear.forward = networks.network_Linear_forward
-torch.nn.Linear._load_from_state_dict = lora.lora_Linear_load_state_dict
+torch.nn.Linear._load_from_state_dict = networks.network_Linear_load_state_dict
-torch.nn.Conv2d.forward = lora.lora_Conv2d_forward
+torch.nn.Conv2d.forward = networks.network_Conv2d_forward
-torch.nn.Conv2d._load_from_state_dict = lora.lora_Conv2d_load_state_dict
+torch.nn.Conv2d._load_from_state_dict = networks.network_Conv2d_load_state_dict
-torch.nn.MultiheadAttention.forward = lora.lora_MultiheadAttention_forward
+torch.nn.MultiheadAttention.forward = networks.network_MultiheadAttention_forward
-torch.nn.MultiheadAttention._load_from_state_dict = lora.lora_MultiheadAttention_load_state_dict
+torch.nn.MultiheadAttention._load_from_state_dict = networks.network_MultiheadAttention_load_state_dict
 
-script_callbacks.on_model_loaded(lora.assign_lora_names_to_compvis_modules)
+script_callbacks.on_model_loaded(networks.assign_network_names_to_compvis_modules)
 script_callbacks.on_script_unloaded(unload)
 script_callbacks.on_before_ui(before_ui)
-script_callbacks.on_infotext_pasted(lora.infotext_pasted)
+script_callbacks.on_infotext_pasted(networks.infotext_pasted)
 
 
 shared.options_templates.update(shared.options_section(('extra_networks', "Extra Networks"), {
-    "sd_lora": shared.OptionInfo("None", "Add Lora to prompt", gr.Dropdown, lambda: {"choices": ["None", *lora.available_loras]}, refresh=lora.list_available_loras),
+    "sd_lora": shared.OptionInfo("None", "Add network to prompt", gr.Dropdown, lambda: {"choices": ["None", *networks.available_networks]}, refresh=networks.list_available_networks),
     "lora_preferred_name": shared.OptionInfo("Alias from file", "When adding to prompt, refer to Lora by", gr.Radio, {"choices": ["Alias from file", "Filename"]}),
     "lora_add_hashes_to_infotext": shared.OptionInfo(True, "Add Lora hashes to infotext"),
 }))
 
 
 shared.options_templates.update(shared.options_section(('compatibility', "Compatibility"), {
-    "lora_functional": shared.OptionInfo(False, "Lora: use old method that takes longer when you have multiple Loras active and produces same results as kohya-ss/sd-webui-additional-networks extension"),
+    "lora_functional": shared.OptionInfo(False, "Lora/Networks: use old method that takes longer when you have multiple Loras active and produces same results as kohya-ss/sd-webui-additional-networks extension"),
 }))
 
 
-def create_lora_json(obj: lora.LoraOnDisk):
+def create_lora_json(obj: network.NetworkOnDisk):
     return {
         "name": obj.name,
         "alias": obj.alias,
@@ -75,17 +80,17 @@ def create_lora_json(obj: lora.LoraOnDisk):
     }
 
 
-def api_loras(_: gr.Blocks, app: FastAPI):
+def api_networks(_: gr.Blocks, app: FastAPI):
     @app.get("/sdapi/v1/loras")
     async def get_loras():
-        return [create_lora_json(obj) for obj in lora.available_loras.values()]
+        return [create_lora_json(obj) for obj in networks.available_networks.values()]
 
     @app.post("/sdapi/v1/refresh-loras")
     async def refresh_loras():
-        return lora.list_available_loras()
+        return networks.list_available_networks()
 
 
-script_callbacks.on_app_started(api_loras)
+script_callbacks.on_app_started(api_networks)
 
 re_lora = re.compile("<lora:([^:]+):")
 
@@ -98,19 +103,19 @@ def infotext_pasted(infotext, d):
     hashes = [x.strip().split(':', 1) for x in hashes.split(",")]
     hashes = {x[0].strip().replace(",", ""): x[1].strip() for x in hashes}
 
-    def lora_replacement(m):
+    def network_replacement(m):
         alias = m.group(1)
         shorthash = hashes.get(alias)
         if shorthash is None:
             return m.group(0)
 
-        lora_on_disk = lora.available_lora_hash_lookup.get(shorthash)
+        network_on_disk = networks.available_network_hash_lookup.get(shorthash)
-        if lora_on_disk is None:
+        if network_on_disk is None:
             return m.group(0)
 
-        return f'<lora:{lora_on_disk.get_alias()}:'
+        return f'<lora:{network_on_disk.get_alias()}:'
 
-    d["Prompt"] = re.sub(re_lora, lora_replacement, d["Prompt"])
+    d["Prompt"] = re.sub(re_lora, network_replacement, d["Prompt"])
 
 
 script_callbacks.on_infotext_pasted(infotext_pasted)

extensions-builtin/Lora/ui_extra_networks_lora.py

@@ -1,5 +1,5 @@
 import os
-import lora
+import networks
 
 from modules import shared, ui_extra_networks
 from modules.ui_extra_networks import quote_js
@@ -11,10 +11,10 @@ class ExtraNetworksPageLora(ui_extra_networks.ExtraNetworksPage):
         super().__init__('Lora')
 
     def refresh(self):
-        lora.list_available_loras()
+        networks.list_available_networks()
 
     def create_item(self, name, index=None):
-        lora_on_disk = lora.available_loras.get(name)
+        lora_on_disk = networks.available_networks.get(name)
 
         path, ext = os.path.splitext(lora_on_disk.filename)
 
@@ -43,7 +43,7 @@ class ExtraNetworksPageLora(ui_extra_networks.ExtraNetworksPage):
         return item
 
     def list_items(self):
-        for index, name in enumerate(lora.available_loras):
+        for index, name in enumerate(networks.available_networks):
             item = self.create_item(name, index)
             yield item
 

modules/extra_networks.py

@@ -4,16 +4,22 @@ from collections import defaultdict
 from modules import errors
 
 extra_network_registry = {}
+extra_network_aliases = {}
 
 
 def initialize():
     extra_network_registry.clear()
+    extra_network_aliases.clear()
 
 
 def register_extra_network(extra_network):
     extra_network_registry[extra_network.name] = extra_network
 
 
+def register_extra_network_alias(extra_network, alias):
+    extra_network_aliases[alias] = extra_network
+
+
 def register_default_extra_networks():
     from modules.extra_networks_hypernet import ExtraNetworkHypernet
     register_extra_network(ExtraNetworkHypernet())
@@ -82,20 +88,26 @@ def activate(p, extra_network_data):
     """call activate for extra networks in extra_network_data in specified order, then call
     activate for all remaining registered networks with an empty argument list"""
 
+    activated = []
+
     for extra_network_name, extra_network_args in extra_network_data.items():
         extra_network = extra_network_registry.get(extra_network_name, None)
+
+        if extra_network is None:
+            extra_network = extra_network_aliases.get(extra_network_name, None)
+
         if extra_network is None:
             print(f"Skipping unknown extra network: {extra_network_name}")
             continue
 
         try:
             extra_network.activate(p, extra_network_args)
+            activated.append(extra_network)
         except Exception as e:
             errors.display(e, f"activating extra network {extra_network_name} with arguments {extra_network_args}")
 
     for extra_network_name, extra_network in extra_network_registry.items():
-        args = extra_network_data.get(extra_network_name, None)
+        if extra_network in activated:
-        if args is not None:
             continue
 
         try: