Unable to handle images with width or height that aren't multiples of 4

[hostytoasty]

I ran into this issue while trying to replace texture2d assets with modified versions of the same image. Obviously, this seems to be an etcpak error which I understand is a dependency issue. I just wanted to ask if I'm missing something obvious that would easily fix this, or if there's not much that can be done without fixing the dependency. Maintaining the image's dimension is key so resizing is not really great.

Code

        env = UnityPy.load(f)
        for obj in env.objects:
            if obj.type.name == 'Texture2D':
                data = obj.read()
                # getting file from somewhere
                texture_path = file.absolute()
                new_texture = Image.open(texture_path)
                # Fails at this line
                data.image = new_texture
                data.save()

Error

Traceback (most recent call last):
  File "...\asset_replace.py", line 63, in main
    data.image = new_texture
  File "Python\Python310\lib\site-packages\UnityPy\classes\legacy_patch\Texture2D.py", line 28, in _Texture2d_set_image
    img_data, tex_format = Texture2DConverter.image_to_texture2d(img, target_format)
  File "Python\Python310\lib\site-packages\UnityPy\export\Texture2DConverter.py", line 68, in image_to_texture2d
    enc_img = etcpak.compress_etc2_rgba(raw_img, img.width, img.height)
ValueError: width or height not multiple of 4

Bug
UnityPy unable to work with images of height or width that aren't multiples of 4

To Reproduce

• Test Image is 506 x 434
• following data:
  • Python 3.10
  • UnityPy 1.20.16