Verify architecture for loaded Spandrel models

6 files changed, 20 insertions, 4 deletions

diff --git a/modules/codeformer_model.py b/modules/codeformer_model.py
index ceda4bab..44b84618 100644
--- a/modules/codeformer_model.py
+++ b/modules/codeformer_model.py
@@ -37,6 +37,7 @@ class FaceRestorerCodeFormer(face_restoration_utils.CommonFaceRestoration):
             return modelloader.load_spandrel_model(

                 model_path,

                 device=devices.device_codeformer,

+                expected_architecture='CodeFormer',

             ).model

         raise ValueError("No codeformer model found")

 

diff --git a/modules/esrgan_model.py b/modules/esrgan_model.py
index a7c7c9e3..70041ab0 100644
--- a/modules/esrgan_model.py
+++ b/modules/esrgan_model.py
@@ -49,6 +49,7 @@ class UpscalerESRGAN(Upscaler):
         return modelloader.load_spandrel_model(

             filename,

             device=('cpu' if devices.device_esrgan.type == 'mps' else None),

+            expected_architecture='ESRGAN',

         )

 

 

diff --git a/modules/gfpgan_model.py b/modules/gfpgan_model.py
index a356b56f..48f8ad5e 100644
--- a/modules/gfpgan_model.py
+++ b/modules/gfpgan_model.py
@@ -37,6 +37,7 @@ class FaceRestorerGFPGAN(face_restoration_utils.CommonFaceRestoration):
                 net = modelloader.load_spandrel_model(

                     model_path,

                     device=self.get_device(),

+                    expected_architecture='GFPGAN',

                 ).model

                 net.different_w = True  # see https://github.com/chaiNNer-org/spandrel/pull/81

                 return net

diff --git a/modules/hat_model.py b/modules/hat_model.py
index 553e1941..7f2abb41 100644
--- a/modules/hat_model.py
+++ b/modules/hat_model.py
@@ -39,4 +39,5 @@ class UpscalerHAT(Upscaler):
         return modelloader.load_spandrel_model(

             path,

             device=devices.device_esrgan,  # TODO: should probably be device_hat

+            expected_architecture='HAT',

         )

diff --git a/modules/modelloader.py b/modules/modelloader.py
index 30116932..f4182559 100644
--- a/modules/modelloader.py
+++ b/modules/modelloader.py
@@ -6,6 +6,8 @@ import shutil
 import importlib
 from urllib.parse import urlparse
 
+import torch
+
 from modules import shared
 from modules.upscaler import Upscaler, UpscalerLanczos, UpscalerNearest, UpscalerNone
 from modules.paths import script_path, models_path
@@ -183,9 +185,18 @@ def load_upscalers():
     )
 
 
-def load_spandrel_model(path, *, device, half: bool = False, dtype=None):
+def load_spandrel_model(
+    path: str,
+    *,
+    device: str | torch.device | None,
+    half: bool = False,
+    dtype: str | None = None,
+    expected_architecture: str | None = None,
+):
     import spandrel
     model = spandrel.ModelLoader(device=device).load_from_file(path)
+    if expected_architecture and model.architecture != expected_architecture:
+        raise TypeError(f"Model {path} is not a {expected_architecture} model")
     if half:
         model = model.model.half()
     if dtype:
diff --git a/modules/realesrgan_model.py b/modules/realesrgan_model.py
index 332d8f4b..2a2be5ad 100644
--- a/modules/realesrgan_model.py
+++ b/modules/realesrgan_model.py
@@ -1,9 +1,9 @@
 import os

 

-from modules.upscaler_utils import upscale_with_model

-from modules.upscaler import Upscaler, UpscalerData

-from modules.shared import cmd_opts, opts

 from modules import modelloader, errors

+from modules.shared import cmd_opts, opts

+from modules.upscaler import Upscaler, UpscalerData

+from modules.upscaler_utils import upscale_with_model

 

 

 class UpscalerRealESRGAN(Upscaler):

@@ -40,6 +40,7 @@ class UpscalerRealESRGAN(Upscaler):
             info.local_data_path,

             device=self.device,

             half=(not cmd_opts.no_half and not cmd_opts.upcast_sampling),

+            expected_architecture="RealESRGAN",

         )

         return upscale_with_model(

             mod,