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from enum import Enum
class HiResFixOption(Enum):
BOTH = "Both"
LOW_RES_ONLY = "Low res only"
HIGH_RES_ONLY = "High res only"
@staticmethod
def from_value(value) -> "HiResFixOption":
if isinstance(value, str) and value.startswith("HiResFixOption."):
_, field = value.split(".")
return getattr(HiResFixOption, field)
if isinstance(value, str):
return HiResFixOption(value)
elif isinstance(value, int):
return [x for x in HiResFixOption][value]
else:
assert isinstance(value, HiResFixOption)
return value
@property
def low_res_enabled(self) -> bool:
return self in (HiResFixOption.BOTH, HiResFixOption.LOW_RES_ONLY)
@property
def high_res_enabled(self) -> bool:
return self in (HiResFixOption.BOTH, HiResFixOption.HIGH_RES_ONLY)
class StableDiffusionVersion(Enum):
"""The version family of stable diffusion model."""
UNKNOWN = 0
SD1x = 1
SD2x = 2
SDXL = 3
@staticmethod
def detect_from_model_name(model_name: str) -> "StableDiffusionVersion":
"""Based on the model name provided, guess what stable diffusion version it is.
This might not be accurate without actually inspect the file content.
"""
if any(f"sd{v}" in model_name.lower() for v in ("14", "15", "16")):
return StableDiffusionVersion.SD1x
if "sd21" in model_name or "2.1" in model_name:
return StableDiffusionVersion.SD2x
if "xl" in model_name.lower():
return StableDiffusionVersion.SDXL
return StableDiffusionVersion.UNKNOWN
def encoder_block_num(self) -> int:
if self in (StableDiffusionVersion.SD1x, StableDiffusionVersion.SD2x, StableDiffusionVersion.UNKNOWN):
return 12
else:
return 9 # SDXL
def controlnet_layer_num(self) -> int:
return self.encoder_block_num() + 1
def is_compatible_with(self, other: "StableDiffusionVersion") -> bool:
""" Incompatible only when one of version is SDXL and other is not. """
return (
any(v == StableDiffusionVersion.UNKNOWN for v in [self, other]) or
sum(v == StableDiffusionVersion.SDXL for v in [self, other]) != 1
)
class InputMode(Enum):
# Single image to a single ControlNet unit.
SIMPLE = "simple"
# Input is a directory. N generations. Each generation takes 1 input image
# from the directory.
BATCH = "batch"
# Input is a directory. 1 generation. Each generation takes N input image
# from the directory.
MERGE = "merge"
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