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@@ -139,6 +139,27 @@ def load_upscalers():
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key=lambda x: x.name.lower() if not isinstance(x.scaler, (UpscalerNone, UpscalerLanczos, UpscalerNearest)) else ""
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)
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+# None: not loaded, False: failed to load, True: loaded
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+_spandrel_extra_init_state = None
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+
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+
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+def _init_spandrel_extra_archs() -> None:
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+ """
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+ Try to initialize `spandrel_extra_archs` (exactly once).
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+ """
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+ global _spandrel_extra_init_state
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+ if _spandrel_extra_init_state is not None:
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+ return
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+
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+ try:
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+ import spandrel
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+ import spandrel_extra_arches
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+ spandrel.MAIN_REGISTRY.add(*spandrel_extra_arches.EXTRA_REGISTRY)
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+ _spandrel_extra_init_state = True
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+ except Exception:
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+ logger.warning("Failed to load spandrel_extra_arches", exc_info=True)
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+ _spandrel_extra_init_state = False
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+
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def load_spandrel_model(
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path: str | os.PathLike,
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@@ -148,11 +169,16 @@ def load_spandrel_model(
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dtype: str | torch.dtype | None = None,
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expected_architecture: str | None = None,
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) -> spandrel.ModelDescriptor:
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+ global _spandrel_extra_init_state
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+
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import spandrel
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+ _init_spandrel_extra_archs()
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+
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model_descriptor = spandrel.ModelLoader(device=device).load_from_file(str(path))
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- if expected_architecture and model_descriptor.architecture != expected_architecture:
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+ arch = model_descriptor.architecture
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+ if expected_architecture and arch.name != expected_architecture:
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logger.warning(
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- f"Model {path!r} is not a {expected_architecture!r} model (got {model_descriptor.architecture!r})",
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+ f"Model {path!r} is not a {expected_architecture!r} model (got {arch.name!r})",
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)
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half = False
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if prefer_half:
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@@ -166,6 +192,6 @@ def load_spandrel_model(
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model_descriptor.model.eval()
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logger.debug(
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"Loaded %s from %s (device=%s, half=%s, dtype=%s)",
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- model_descriptor, path, device, half, dtype,
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+ arch, path, device, half, dtype,
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)
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return model_descriptor
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