Add comprehensive tests for image processing and mask functionalities

- Introduced tests for color image handling, ensuring source preservation and premultiplied alpha usage.
- Implemented tests for brush stroke operations, validating segment boundaries and brush anti-aliasing.
- Added tests for frame anti-aliasing, confirming correct rendering behavior with various alpha values and depth settings.
- Created tests for frame projection, ensuring accurate overlap calculations and half-plane clipping.
- Developed tests for image premultiplied retention, verifying behavior during loading and packing processes.
- Added undo functionality tests for mask operations, ensuring single transaction behavior during edits.

src/anyimage/preferences.py

@@ -17,6 +17,9 @@ DEFAULT_BACKGROUND_MODEL_KEY = "BEN2_BASE"
 DEFAULT_MAX_CUTOUT_MESH_RESOLUTION = 1024
 MIN_CUTOUT_MESH_RESOLUTION = 4
 MAX_CUTOUT_MESH_RESOLUTION = 1024
+DEFAULT_MAX_FRAME_RESOLUTION = 2048
+MIN_FRAME_RESOLUTION = 64
+MAX_FRAME_RESOLUTION = 8192
 
 ADDON_PACKAGE = __package__
 DEFAULT_STORAGE_ROOT = Path.home() / ".anyimage"
@@ -73,6 +76,18 @@ def configured_max_cutout_mesh_resolution(context=None):
     )
 
 
+def configured_max_frame_resolution(context=None):
+    preferences = addon_preferences(context)
+    value = int(
+        getattr(
+            preferences,
+            "max_frame_resolution",
+            DEFAULT_MAX_FRAME_RESOLUTION,
+        )
+    )
+    return min(max(value, MIN_FRAME_RESOLUTION), MAX_FRAME_RESOLUTION)
+
+
 def configured_max_ai_input_size(context=None):
     preferences = addon_preferences(context)
     value = int(getattr(preferences, "max_ai_input_size", DEFAULT_MAX_AI_INPUT_SIZE))
@@ -139,6 +154,15 @@ class AnyImagePreferences(bpy.types.AddonPreferences):
         step=64,
         subtype="PIXEL",
     )
+    max_frame_resolution: bpy.props.IntProperty(
+        name="Maximum Frame Resolution",
+        description="Maximum output resolution along the longest Frame edge",
+        default=DEFAULT_MAX_FRAME_RESOLUTION,
+        min=MIN_FRAME_RESOLUTION,
+        max=MAX_FRAME_RESOLUTION,
+        step=128,
+        subtype="PIXEL",
+    )
     balloon_profile_algorithm: bpy.props.EnumProperty(
         name="Balloon Profile",
         description="Algorithm used to generate o_balloon for every Cutout shape",
@@ -220,6 +244,9 @@ class AnyImagePreferences(bpy.types.AddonPreferences):
             )
 
         tools = self._draw_box(layout, "Tools")
+        tools.label(text="Frame Tool")
+        tools.prop(self, "max_frame_resolution")
+        tools.separator(type="LINE")
         tools.label(text="Depth & Normal")
         tools.prop(self, "geometry_resolution_level")
         tools.separator(type="LINE")