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ImageExtractor: Workaround for Phoenix ROMs starting with an invalid PGX

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This commit is contained in:
RichardG867
2023-11-21 21:57:11 -03:00
parent b25c5baa81
commit 7c12dc39a7
1 changed files with 5 additions and 1 deletions
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6
biostools/extractors.py
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@@ -906,7 +906,7 @@ class ImageExtractor(Extractor):
# Read 64 KB, which is enough to ascertain any potential logo type,
# even if embedded in the file. (Monorail SiS 550x: PCX in AMI module)
dest_dir_file_path = os.path.join(dest_dir_0, dest_dir_file)
if os.path.isdir(dest_dir_file_path):
if os.path.isdir(dest_dir_file_path) or dest_dir_file == ':header:':
continue
f = open(dest_dir_file_path, 'rb')
dest_dir_file_header = f.read(65536)
@@ -943,6 +943,10 @@ class ImageExtractor(Extractor):
# Get width and height for a Phoenix Graphics image.
width, height = struct.unpack('<HH', file_header[10:14])
if width == 0 and height == 0 and file_header[2:17] == b'\x09\x00\x00\x80\x02\x16\x00\x00\x00\x00\x00\x00\x00\x00\x0F':
# Ignore invalid image at the beginning of the compressed payload (Micronics Tigercat)
if not any_offset or os.path.basename(file_path) == 'remainder.rom':
return False
# Some HP 4.0R6 have a width and height of 0 on 640x480 images.
width = 640
height = 480