Merge pull request #719 from LedgerHQ/fix-wrong-highlighted-app-icon-…

…on-nano

Fix wrong highlighted app icon on Nano when this icon is compress

lib_nbgl/tools/icon2glyph.py

@@ -216,15 +216,19 @@ def convert_to_image_file(image_data: bytes, width: int, height: int,
  return bytes(bytearray(result))
 
 
-def compute_app_icon_data(im: Image, bpp, reverse) -> Tuple[bool, bytes]:
+def compute_app_icon_data(no_comp: bool, im: Image, bpp, reverse) -> Tuple[bool, bytes]:
  """
  Process image as app icon:
  - App icon are always image file
  - Compression is not limited to 64x64
  """
- compression, image_data = compress(im, bpp, reverse)
- is_file = True
  width, height = im.size
+ is_file = True
+ if not no_comp:
+ compression, image_data = compress(im, bpp, reverse)
+ else:
+ image_data = image_to_packed_buffer(im, bpp, reverse)
+ compression = NbglFileCompression.NoCompression
  image_data = convert_to_image_file(
  image_data, width, height, bpp, compression)
  return is_file, image_data
@@ -370,7 +374,12 @@ def main():
  im, bpp = opened
 
  # Prepare and print app icon data
- _, image_data = compute_app_icon_data(im, bpp, args.reverse)
+ # for Nano icons, do not compress
+ if args.reverse:
+ no_comp = True
+ else:
+ no_comp = False
+ _, image_data = compute_app_icon_data(no_comp, im, bpp, args.reverse)
  with open(args.hexbitmap, 'w') as out_file:
  out_file.write(binascii.hexlify(image_data).decode('utf-8'))
  #print(binascii.hexlify(image_data).decode('utf-8'))