Add fix_top_format() to BitmapTag (#72)

CHANGELOG.MD

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.9.8]
+### Added
+ - Add fix_top_format() to BitmapTag
+
 ## [2.9.7]
 ### Changed
  - Assume that 0 scale values in models are equal to 1.

reclaimer/__init__.py

@@ -12,8 +12,8 @@
 # ##############
 __author__ = "Sigmmma"
 #           YYYY.MM.DD
-__date__ = "2020.08.17"
-__version__ = (2, 9, 7)
+__date__ = "2020.09.19"
+__version__ = (2, 9, 8)
 __website__ = "https://github.com/Sigmmma/reclaimer"
 __all__ = (
     "animation", "bitmaps", "h2", "h3", "halo_script", "hek", "meta", "misc",

reclaimer/hek/defs/objs/bitm.py

@@ -68,6 +68,30 @@ def bitmap_format(self, b_index=0, new_value=None):
             return self.data.tagdata.bitmaps.bitmaps_array[b_index].format.data
         self.data.tagdata.bitmaps.bitmaps_array[b_index].format.data = new_value
 
+    def fix_top_format(self):
+        if len(self.data.tagdata.bitmaps.bitmaps_array) <= 0:
+            self.data.tagdata.format.data = "color_key_transparency"
+
+        # Why can't get_name get the name of the current option?
+        pixel_format = self.data.tagdata.bitmaps.bitmaps_array[0].format.get_name(
+            self.data.tagdata.bitmaps.bitmaps_array[0].format.data)
+
+        top_format = "color_key_transparency"
+        if pixel_format in ("a8", "y8", "ay8", "a8y8"):
+            top_format = "monochrome"
+        elif pixel_format in ("r5g6b5", "a1r5g5b5", "a4r4g4b4"):
+            top_format = "color_16bit"
+        elif pixel_format in ("x8r8g8b8", "a8r8g8b8", "p8_bump"):
+            top_format = "color_32bit"
+        elif pixel_format == "dxt1":
+            top_format = "color_key_transparency"
+        elif pixel_format == "dxt3":
+            top_format = "explicit_alpha"
+        elif pixel_format == "dxt5":
+            top_format = "interpolated_alpha"
+
+        self.data.tagdata.format.set_to(top_format)
+
     def bitmap_width_height_depth(self, b_index=0, new_value=None):
         bitmap = self.data.tagdata.bitmaps.bitmaps_array[b_index]
         if new_value is None: