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Check number of bytes remaining before reading texture strings

This commit is contained in:
William Herald Snyder 2022-10-29 12:57:14 -04:00
parent 613cb20678
commit f451be4d18
2 changed files with 11 additions and 4 deletions
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3
addons/io_scene_swbf_msh/chunked_file_reader.py
View File

@ -138,6 +138,9 @@ class Reader:
def how_much_left(self, pos):
return self.end_pos - pos
def bytes_remaining(self):
return self.end_pos - self.file.tell()
def skip_until(self, header):
while (self.could_have_child() and header not in self.peak_next_header()):
self.skip_bytes(1)

12
addons/io_scene_swbf_msh/msh_scene_read.py
View File

@ -165,19 +165,23 @@ def _read_matd(matd: Reader) -> Material:
elif next_header == "TX0D":
with matd.read_child() as tx0d:
mat.texture0 = tx0d.read_string()
if tx0d.bytes_remaining() > 0:
mat.texture0 = tx0d.read_string()
elif next_header == "TX1D":
with matd.read_child() as tx1d:
mat.texture1 = tx1d.read_string()
if tx1d.bytes_remaining() > 0:
mat.texture1 = tx1d.read_string()
elif next_header == "TX2D":
with matd.read_child() as tx2d:
mat.texture2 = tx2d.read_string()
if tx2d.bytes_remaining() > 0:
mat.texture2 = tx2d.read_string()
elif next_header == "TX3D":
with matd.read_child() as tx3d:
mat.texture3 = tx3d.read_string()
if tx3d.bytes_remaining() > 0:
mat.texture3 = tx3d.read_string()
else:
matd.skip_bytes(1)