Support multiple additional networks

gen_img_diffusers.py

@@ -1,38 +1,3 @@
-# txt2img with Diffusers: supports SD checkpoints, EulerScheduler, clip-skip, 225 tokens, Hypernetwork etc...
-
-# v2: CLIP guided Stable Diffusion, Image guided Stable Diffusion, highres. fix
-# v3: Add dpmsolver/dpmsolver++, add VAE loading, add upscale, add 'bf16', fix the issue network_mul is not working
-# v4: SD2.0 support (new U-Net/text encoder/tokenizer), simplify by DiffUsers 0.9.0, no_preview in interactive mode
-# v5: fix clip_sample=True for scheduler, add VGG guidance
-# v6: refactor to use model util, load VAE without vae folder, support safe tensors
-# v7: add use_original_file_name and iter_same_seed option, change vgg16 guide input image size, 
-# Diffusers 0.10.0 (support new schedulers (dpm_2, dpm_2_a, heun, dpmsingle), supports all scheduler in v-prediction)
-# v8: accept wildcard for ckpt name (when only one file is matched), fix a bug app crushes because PIL image doesn't have filename attr sometimes,
-# v9: sort file names, fix an issue in img2img when prompt from metadata with images_per_prompt>1
-# v10: fix app crashes when different image size in prompts
-
-# Copyright 2022 kohya_ss @kohya_ss
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# license of included scripts:
-
-# FlashAttention: based on https://github.com/lucidrains/memory-efficient-attention-pytorch/blob/main/memory_efficient_attention_pytorch/flash_attention.py
-# MIT https://github.com/lucidrains/memory-efficient-attention-pytorch/blob/main/LICENSE
-
-# Diffusers (model conversion, CLIP guided stable diffusion, schedulers etc.):
-# ASL 2.0 https://github.com/huggingface/diffusers/blob/main/LICENSE
-
 """
 VGG(
   (features): Sequential(
@@ -1982,26 +1947,42 @@ def main(args):
     vgg16_model.to(dtype).to(device)
 
   # networkを組み込む
-  if args.network_module is not None:
+  if args.network_module:
-    # assert not args.diffusers_xformers, "cannot use network with diffusers_xformers / diffusers_xformers指定時はnetworkは利用できません"
+    networks = []
+    for i, network_module in enumerate(args.network_module):
+      print("import network module:", network_module)
+      imported_module = importlib.import_module(network_module)
 
-    print("import network module:", args.network_module)
+      network_mul = 1.0 if args.network_mul is None or len(args.network_mul) <= i else args.network_mul[i]
-    network_module = importlib.import_module(args.network_module)
+      network_dim = None if args.network_dim is None or len(args.network_dim) <= i else args.network_dim[i]
 
-    network = network_module.create_network(args.network_mul, args.network_dim, vae,text_encoder, unet) # , **net_kwargs)
+      net_kwargs = {}
+      if args.network_args and i < len(args.network_args):
+        network_args = args.network_args[i]
+        # TODO escape special chars
+        network_args = network_args.split(";")
+        for net_arg in network_args:
+          key, value = net_arg.split("=")
+          net_kwargs[key] = value
+
+      network = imported_module.create_network(network_mul, network_dim, vae, text_encoder, unet, **net_kwargs)
       if network is None:
         return
 
-    print("load network weights from:", args.network_weights)
+      if args.network_weights and i < len(args.network_weights):
-    network.load_weights(args.network_weights)
+        network_weight = args.network_weights[i]
+        print("load network weights from:", network_weight)
+        network.load_weights(network_weight)
 
       network.apply_to(text_encoder, unet)
 
       if args.opt_channels_last:
         network.to(memory_format=torch.channels_last)
       network.to(dtype).to(device)
+
+      networks.append(network)
   else:
-    network = None
+    networks = []
 
   if args.opt_channels_last:
     print(f"set optimizing: channels last")
@@ -2010,7 +1991,8 @@ def main(args):
     unet.to(memory_format=torch.channels_last)
     if clip_model is not None:
       clip_model.to(memory_format=torch.channels_last)
-    if network is not None:
+    if networks:
+      for network in networks:
         network.to(memory_format=torch.channels_last)
     if vgg16_model is not None:
       vgg16_model.to(memory_format=torch.channels_last)
@@ -2481,19 +2463,24 @@ if __name__ == '__main__':
   #                     help="Replace CLIP (Text Encoder) to l/14@336 / CLIP(Text Encoder)をl/14@336に入れ替える")
   parser.add_argument("--seed", type=int, default=None,
                       help="seed, or seed of seeds in multiple generation / 1枚生成時のseed、または複数枚生成時の乱数seedを決めるためのseed")
-  parser.add_argument("--iter_same_seed", action='store_true', help='use same seed for all prompts in iteration if no seed specified / 乱数seedの指定がないとき繰り返し内はすべて同じseedを使う（プロンプト間の差異の比較用）')
+  parser.add_argument("--iter_same_seed", action='store_true',
+                      help='use same seed for all prompts in iteration if no seed specified / 乱数seedの指定がないとき繰り返し内はすべて同じseedを使う（プロンプト間の差異の比較用）')
   parser.add_argument("--fp16", action='store_true', help='use fp16 / fp16を指定し省メモリ化する')
   parser.add_argument("--bf16", action='store_true', help='use bfloat16 / bfloat16を指定し省メモリ化する')
   parser.add_argument("--xformers", action='store_true', help='use xformers / xformersを使用し高速化する')
   parser.add_argument("--diffusers_xformers", action='store_true',
-                      help='use xformers by diffusers (Hypernetworks doesn\'t work) / Diffusersでxformersを使用する（Hypernetwork利用不可）')
+                      help='use xformers by diffusers (Hypernetworks doen\'t work) / Diffusersでxformersを使用する（Hypernetwork利用不可）')
   parser.add_argument("--opt_channels_last", action='store_true',
-                      help='set channels last option to model / モデルにchannels lastを指定し最適化する')
+                      help='set channels last option to model / モデルにchannles lastを指定し最適化する')
-  parser.add_argument("--network_module", type=str, default=None, help='Hypernetwork module to use / Hypernetworkを使う時そのモジュール名')
+  parser.add_argument("--network_module", type=str, default=None, nargs='*',
-  parser.add_argument("--network_weights", type=str, default=None, help='Hypernetwork weights to load / Hypernetworkの重み')
+                      help='Hypernetwork module to use / Hypernetworkを使う時そのモジュール名')
-  parser.add_argument("--network_mul", type=float, default=1.0, help='Hypernetwork multiplier / Hypernetworkの効果の倍率')
+  parser.add_argument("--network_weights", type=str, default=None, nargs='*',
-  parser.add_argument("--network_dim", type=int, default=None,
+                      help='Hypernetwork weights to load / Hypernetworkの重み')
+  parser.add_argument("--network_mul", type=float, default=None, nargs='*', help='Hypernetwork multiplier / Hypernetworkの効果の倍率')
+  parser.add_argument("--network_dim", type=int, default=None, nargs='*',
                       help='network dimensions (depends on each network) / モジュールの次元数（ネットワークにより定義は異なります）')
+  parser.add_argument("--network_args", type=str, default=None, nargs='*',
+                      help='additional argmuments for network (key=value) / ネットワークへの追加の引数')
   parser.add_argument("--clip_skip", type=int, default=None, help='layer number from bottom to use in CLIP / CLIPの後ろからn層目の出力を使う')
   parser.add_argument("--max_embeddings_multiples", type=int, default=None,
                       help='max embeding multiples, max token length is 75 * multiples / トークン長をデフォルトの何倍とするか 75*この値 がトークン長となる')