Have PIL except on unsupported files

imagepacker/imagepacker.py

@@ -222,15 +222,18 @@ def pack_images(image_paths, background=(0,0,0,0), format="PNG", extents=None, t
     blocks = []
     image_name_map = {}
 
+    image_paths = [path for path in image_paths if path is not None]
     image_paths.sort() # sort so we get repeatable file ordering, I hope!
+    # pprint(image_paths)
 
     for filename in image_paths:
         print("opening", filename)
         image = Image.open(filename)
+
         image = image.transpose(Image.FLIP_TOP_BOTTOM)
         # rescale images
         changes = None
-        if extents:
+        if extents and extents[filename]:
             # print(filename, image.size)
             image, changes = crop_by_extents(image, extents[filename], tile, crop)
 

objuvpacker.py

@@ -171,8 +171,9 @@ def uv_wrap(self):
                 return (self.max_x - self.min_x, self.max_y - self.min_y)
 
             def tiling(self):
-                if self.min_x < 0 or self.min_y < 0 or self.max_x > 1 or self.max_y > 1:
-                    return (self.max_x - self.min_x, self.max_y - self.min_y)
+                if self.min_x and self.max_x and self.min_y and self.max_y:
+                    if self.min_x < 0 or self.min_y < 0 or self.max_x > 1 or self.max_y > 1:
+                        return (self.max_x - self.min_x, self.max_y - self.min_y)
                 return None
 
             def __repr__(self):
@@ -244,7 +245,7 @@ def __repr__(self):
 
     else:
         textents = None
-
+    # pprint(dmaps)
     # pack and save textures, get info about new coordinate changes
     print("\ncreating packed texture")
     if additional: # additional images