Merge pull request #8767 from radarhere/ftex

Only set mode when necessary in FtexImagePlugin

Author: hugovk

src/PIL/FtexImagePlugin.py

@@ -79,8 +79,6 @@ def _open(self) -> None:
  self._size = struct.unpack("<2i", self.fp.read(8))
  mipmap_count, format_count = struct.unpack("<2i", self.fp.read(8))
 
- self._mode = "RGB"
-
  # Only support single-format files.
  # I don't know of any multi-format file.
  assert format_count == 1
@@ -95,6 +93,7 @@ def _open(self) -> None:
  self._mode = "RGBA"
  self.tile = [ImageFile._Tile("bcn", (0, 0) + self.size, 0, (1,))]
  elif format == Format.UNCOMPRESSED:
+ self._mode = "RGB"
  self.tile = [ImageFile._Tile("raw", (0, 0) + self.size, 0, "RGB")]
  else:
  msg = f"Invalid texture compression format: {repr(format)}"