No crashes anymore :3

processing/utils/image_processing_utils.py

@@ -25,6 +25,23 @@ def get_nearest_pot(value: int) -> int:
     else:
         return upper_pot
 
+def get_nearest_power_of_two_downscale(value: int) -> int:
+    """
+    Finds the nearest power of two that is less than or equal to the given value.
+    If the value is already a power of two, it returns the value itself.
+    Returns 1 if the value is less than 1.
+    """
+    if value < 1:
+        return 1
+    if is_power_of_two(value):
+        return value
+    # Find the largest power of two strictly less than value,
+    # unless value itself is POT.
+    # (1 << (value.bit_length() - 1)) achieves this.
+    # Example: value=7 (0111, bl=3), 1<<2 = 4.
+    # Example: value=8 (1000, bl=4), 1<<3 = 8.
+    # Example: value=9 (1001, bl=4), 1<<3 = 8.
+    return 1 << (value.bit_length() - 1)
 # --- Dimension Calculation ---
 
 def calculate_target_dimensions(