Cnet (#22)

* ini

* remove shit

* Create control_model.py

* i

* i

* Update controlnet_supported.py

* Update controlnet_supported.py

* Update controlnet_supported.py

* i

* i

* Update controlnet_supported.py

* i

* Update controlnet_supported.py

* remove shits

* remove shit

* Update global_state.py

* i

* i

* Update legacy_preprocessors.py

* Update legacy_preprocessors.py

* remove shit

* Update batch_hijack.py

* remove shit

* remove shit

* i

* i

* i

* Update external_code.py

* Update global_state.py

* Update infotext.py

* Update utils.py

* Update external_code.py

* i

* i

* i

* Update controlnet_ui_group.py

* remove shit

* remove shit

* i

* Update controlnet.py

* Update controlnet.py

* Update controlnet.py

* Update controlnet.py

* Update controlnet.py

* i

* Update global_state.py

* Update global_state.py

* i

* Update global_state.py

* Update global_state.py

* Update global_state.py

* Update global_state.py

* Update controlnet_ui_group.py

* i

* Update global_state.py

* Update controlnet_ui_group.py

* Update controlnet_ui_group.py

* i

* Update controlnet_ui_group.py

* Update controlnet_ui_group.py

* Update controlnet_ui_group.py

* Update controlnet_ui_group.py

extensions-builtin/sd_forge_controlnet/lib_controlnet/enums.py

@@ -0,0 +1,73 @@
+from enum import Enum
+from typing import Any
+
+
+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 HiResFixOption(Enum):
+    BOTH = "Both"
+    LOW_RES_ONLY = "Low res only"
+    HIGH_RES_ONLY = "High res only"
+
+    @staticmethod
+    def from_value(value: Any) -> "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
+
+
+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"