Found some more places where padding was applied to custom workflow selection masks #2411

Author: Acly

ai_diffusion/custom_workflow.py

@@ -617,7 +617,7 @@ def prepare_mask(
                 case InpaintContext.automatic:
                     bounds = Bounds.pad(mask.bounds, pad)
                 case InpaintContext.mask_bounds:
-                    bounds = Bounds.pad(mask_bounds, pad)
+                    bounds = Bounds.pad(mask_bounds, pad, multiple=1)
                 case other:
                     raise ValueError(f"Invalid inpaint context: {other}")
             bounds = Bounds.clamp(bounds, canvas_bounds.extent)

ai_diffusion/model.py

@@ -1550,6 +1550,9 @@ def _update_target_image(self):
 def get_selection_modifiers(
     arch: Arch | InpaintContext, inpaint_mode: InpaintMode, strength: float, min_size=256
 ):
+    if arch is InpaintContext.mask_bounds:  # use exact bounds, no padding
+        return SelectionModifiers(multiple=1)
+
     feather = settings.selection_feather / 100
     invert = False
 
@@ -1559,19 +1562,13 @@ def get_selection_modifiers(
         feather = min(feather, 0.01)
         invert = True
 
-    if arch is InpaintContext.mask_bounds:
-        min_size = 0
-        multiple = 1
-    else:
-        multiple = resolution.diffusion_multiple
-
     return SelectionModifiers(
         feather_rel=feather * strength,
         feather_min_px=round(settings.selection_min_transition * strength),
         pad_rel=settings.selection_padding / 100,
         pad_offset_px=settings.selection_grow_offset,
         size_min_px=min_size,
-        multiple=multiple,
+        multiple=resolution.diffusion_multiple,
         invert=invert,
     )