def unpack(self, buffer: io.BufferedIOBase, bounding_box_has_unknown: bool = None):
data = self.STRUCT.unpack(buffer)
mesh_offset = buffer.tell()
bounding_box_offset = data.pop("__bounding_box_offset")
if bounding_box_offset != 0:
buffer.seek(bounding_box_offset)
self.bounding_box = BoundingBoxWithUnknown(buffer) if bounding_box_has_unknown else BoundingBox(buffer)
else:
self.bounding_box = None
buffer.seek(data.pop("__bone_offset"))
bone_count = data.pop("__bone_count")
self.bone_indices = list(unpack_from_buffer(buffer, f"<{bone_count}i",))
buffer.seek(data.pop("__face_set_offset"))
face_set_count = data.pop("__face_set_count")
self._face_set_indices = list(unpack_from_buffer(buffer, f"<{face_set_count}i"))
buffer.seek(data.pop("__vertex_buffer_offset"))
vertex_count = data.pop("__vertex_buffer_count")
self._vertex_buffer_indices = list(unpack_from_buffer(buffer, f"<{vertex_count}i"))
buffer.seek(mesh_offset)
self.set(**data)
def _check_use_struct_64(info_buffer, goal_count):
if goal_count == 0:
raise LuaError(
"Cannot detect `LuaInfo` version if no goals are present.")
elif goal_count >= 2:
return unpack_from_buffer(info_buffer, "i", offset=0x24)[0] == 0
else:
# Hacky check if there's only one goal.
if unpack_from_buffer(info_buffer, "i", offset=0x18)[0] == 0x28:
return True
if unpack_from_buffer(info_buffer, "i", offset=0x14)[0] == 0x20:
return False
raise ValueError(
"Found unexpected data while trying to detect `LuaInfo` version from single goal."
)
def ENTRY_CLASS(cls, msb_buffer):
"""Detects the appropriate subclass of `MSBPart` to instantiate, and does so."""
entry_subtype_int = unpack_from_buffer(msb_buffer,
"i",
offset=cls.SUBTYPE_OFFSET,
relative_offset=True)[0]
try:
entry_subtype = cls.ENTRY_SUBTYPE_ENUM(entry_subtype_int)
except ValueError:
raise MapError(
f"Entry of type {cls.ENTRY_SUBTYPE_ENUM} has invalid subtype enum: {entry_subtype_int}"
)
return cls.SUBTYPE_CLASSES[entry_subtype](msb_buffer)
class FaceSet(BinaryObject):
STRUCT = BinaryStruct(
("flags", "B"),
"3x",
("triangle_strip", "?"),
("cull_back_faces", "?"),
("unk_x06", "h"),
("__indices_count", "i"),
("__indices_offset", "i"), # header stops here for versions < 0x20005, which are not supported by Soulstruct
("__indices_length", "i"), # unused
"4x",
("__index_size", "i"), # 0 (from header), 16, or 32
"4x",
)
flags: FaceSetFlags
triangle_strip: bool
cull_back_faces: bool
unk_x06: int
indices: list[int]
def unpack(self, buffer: io.BufferedIOBase, header_index_size: int = None, data_offset: int = None):
data = self.STRUCT.unpack(buffer)
if (index_size := data.pop("__index_size")) == 0:
index_size = header_index_size
if index_size == 8:
raise NotImplementedError("Soulstruct cannot support edge-compressed FLVER face sets (`index_size=8`).")
elif index_size in {16, 32}:
face_set_offset = buffer.tell()
indices_count = data.pop("__indices_count")
indices_offset = data.pop("__indices_offset")
buffer.seek(data_offset + indices_offset)
self.indices = list(unpack_from_buffer(buffer, f"<{indices_count}{'H' if index_size == 16 else 'I'}"))
buffer.seek(face_set_offset)
else:
raise ValueError(f"Unsupported face set index size: {index_size}")
self.set(**data)
def unpack(self, buffer, **kwargs):
self.byte_order = ">" if unpack_from_buffer(buffer, "B",
44)[0] == 255 else "<"
version_info = unpack_from_buffer(buffer, f"{self.byte_order}bbb", 45)
self.flags1 = ParamFlags1(version_info[0])
self.flags2 = ParamFlags2(version_info[1])
self.paramdef_format_version = version_info[2]
header_struct = self.GET_HEADER_STRUCT(self.flags1, self.byte_order)
header = header_struct.unpack(buffer)
try:
self.param_type = header["param_type"]
except KeyError:
self.param_type = read_chars_from_buffer(
buffer, offset=header["param_type_offset"], encoding="utf-8")
self.paramdef_data_version = header["paramdef_data_version"]
self.unknown = header["unknown"]
# Row data offset in header not used. (It's an unsigned short, yet doesn't limit row count to 5461.)
name_data_offset = header[
"name_data_offset"] # CANNOT BE TRUSTED IN VANILLA FILES! Off by +12 bytes.
# Load row pointer data.
if self.flags1.LongDataOffset:
row_pointers = self.ROW_STRUCT_64.unpack_count(
buffer, count=header["row_count"])
else:
row_pointers = self.ROW_STRUCT_32.unpack_count(
buffer, count=header["row_count"])
row_data_offset = buffer.tell() # Reliable row data offset.
# Row size is lazily determined. TODO: Unpack row data in sequence and associate with names separately.
if len(row_pointers) == 0:
return
elif len(row_pointers) == 1:
# NOTE: The only vanilla param in Dark Souls with one row is LEVELSYNC_PARAM_ST (Remastered only),
# for which the row size is hard-coded here. Otherwise, we can trust the repacked offset from Soulstruct
# (and SoulsFormats, etc.).
if self.param_type == "LEVELSYNC_PARAM_ST":
row_size = 220
else:
row_size = name_data_offset - row_data_offset
else:
row_size = row_pointers[1]["data_offset"] - row_pointers[0][
"data_offset"]
# Note that we no longer need to track buffer offset.
name_encoding = self.get_name_encoding()
for row_struct in row_pointers:
buffer.seek(row_struct["data_offset"])
row_data = buffer.read(row_size)
if row_struct["name_offset"] != 0:
try:
name = read_chars_from_buffer(
buffer,
offset=row_struct["name_offset"],
encoding=name_encoding,
reset_old_offset=False, # no need to reset
)
except UnicodeDecodeError as ex:
if ex.object in self.undecodable_row_names:
name = read_chars_from_buffer(
buffer,
offset=row_struct["name_offset"],
encoding=None,
reset_old_offset=False, # no need to reset
)
else:
raise
except ValueError:
buffer.seek(row_struct["name_offset"])
_LOGGER.error(
f"Error encountered while parsing row name string in {self.param_type}.\n"
f" Header: {header}\n"
f" Row Struct: {row_struct}\n"
f" 30 chrs of name data: {' '.join(f'{{:02x}}'.format(x) for x in buffer.read(30))}"
)
raise
else:
name = ""
self.rows[row_struct["id"]] = ParamRow(row_data,
self.paramdef,
name=name)
def unpack_argb(cls, buffer: io.BufferedIOBase):
alpha, red, green, blue = unpack_from_buffer(buffer, "<4f")
return cls(red, green, blue, alpha)
def unpack_bgra(cls, buffer: io.BufferedIOBase):
blue, green, red, alpha = unpack_from_buffer(buffer, "<4f")
return cls(red, green, blue, alpha)
def unpack(self, buffer):
self.gx_items = []
while (gx_id := unpack_from_buffer(
buffer, "<i", offset=buffer.tell())) not in {2**31 - 1, -1}:
self.gx_items.append(GXItem(buffer))
def read(self, buffer: io.BufferedIOBase, layout: BufferLayout,
uv_factor: float):
self.uvs = []
self.tangents = []
self.colors = []
for member in layout:
not_implemented = False
if member.semantic == LayoutSemantic.Position:
if member.layout_type == LayoutType.Float3:
self.position = Vector3(unpack_from_buffer(buffer, "<3f"))
elif member.layout_type == LayoutType.Float4:
self.position = Vector3(unpack_from_buffer(buffer,
"<3f"))[:3]
elif member.layout_type == LayoutType.EdgeCompressed:
raise NotImplementedError(
"Soulstruct cannot load FLVERs with edge-compressed vertex positions."
)
else:
not_implemented = True
elif member.semantic == LayoutSemantic.BoneWeights:
if member.layout_type == LayoutType.Byte4A:
self.bone_weights = VertexBoneWeights(
*
[w / 127.0 for w in unpack_from_buffer(buffer, "<4b")])
elif member.layout_type == LayoutType.Byte4C:
self.bone_weights = VertexBoneWeights(
*
[w / 255.0 for w in unpack_from_buffer(buffer, "<4B")])
elif member.layout_type == LayoutType.UVPair:
self.bone_weights = VertexBoneWeights(*[
w / 32767.0 for w in unpack_from_buffer(buffer, "<4h")
])
elif member.layout_type == LayoutType.Short4ToFloat4A:
self.bone_weights = VertexBoneWeights(*[
w / 32767.0 for w in unpack_from_buffer(buffer, "<4h")
])
else:
not_implemented = True
elif member.semantic == LayoutSemantic.BoneIndices:
if member.layout_type == LayoutType.Byte4B:
self.bone_indices = VertexBoneIndices(
*unpack_from_buffer(buffer, "<4B"))
elif member.layout_type == LayoutType.ShortBoneIndices:
self.bone_indices = VertexBoneIndices(
*unpack_from_buffer(buffer, "<4h"))
elif member.layout_type == LayoutType.Byte4E:
self.bone_indices = VertexBoneIndices(
*unpack_from_buffer(buffer, "<4B"))
else:
not_implemented = True
elif member.semantic == LayoutSemantic.Normal:
if member.layout_type == LayoutType.Float3:
self.normal = Vector3(unpack_from_buffer(buffer, "<3f"))
elif member.layout_type == LayoutType.Float4:
self.normal = Vector3(unpack_from_buffer(buffer, "<3f"))
float_normal_w = unpack_from_buffer(buffer, "<f")[0]
self.normal_w = int(float_normal_w)
if self.normal_w != float_normal_w:
raise ValueError(
f"`normal_w` float was not a whole number.")
elif member.layout_type in {
LayoutType.Byte4A, LayoutType.Byte4B,
LayoutType.Byte4C, LayoutType.Byte4E
}:
self.normal = Vector3([
(x - 127) / 127.0
for x in unpack_from_buffer(buffer, "<3B")
])
self.normal_w = unpack_from_buffer(buffer, "<B")[0]
elif member.layout_type == LayoutType.Short2toFloat2:
self.normal_w = unpack_from_buffer(buffer, "<B")[0]
self.normal = Vector3(
[x / 127.0 for x in unpack_from_buffer(buffer, "<3b")])
elif member.layout_type == LayoutType.Short4ToFloat4A:
self.normal = Vector3([
x / 32767.0 for x in unpack_from_buffer(buffer, "<3h")
])
self.normal_w = unpack_from_buffer(buffer, "<h")[0]
elif member.layout_type == LayoutType.Short4ToFloat4B:
self.normal = Vector3([
(x - 32767) / 32767.0
for x in unpack_from_buffer(buffer, "<3H")
])
self.normal_w = unpack_from_buffer(buffer, "<h")[0]
else:
not_implemented = True
elif member.semantic == LayoutSemantic.UV:
if member.layout_type == LayoutType.Float2:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2f"), 0.0))
elif member.layout_type == LayoutType.Float3:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<3f")))
elif member.layout_type == LayoutType.Float4:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2f"), 0.0))
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2f"), 0.0))
elif member.layout_type in {
LayoutType.Byte4A, LayoutType.Byte4B,
LayoutType.Short2toFloat2, LayoutType.Byte4C,
LayoutType.UV
}:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2h"), 0) /
uv_factor)
elif member.layout_type == LayoutType.UVPair:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2h"), 0) /
uv_factor)
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<2h"), 0) /
uv_factor)
elif member.layout_type == LayoutType.Short4ToFloat4B:
self.uvs.append(
Vector3(*unpack_from_buffer(buffer, "<3h")) /
uv_factor)
if unpack_from_buffer(buffer, "<h") != 0:
raise ValueError(
"Expected null byte after reading UV | Short4ToFloat4B vertex member."
)
else:
not_implemented = True
elif member.semantic == LayoutSemantic.Tangent:
if member.layout_type == LayoutType.Float4:
self.tangents.append(
Vector4(*unpack_from_buffer(buffer, "<4f")))
elif member.layout_type in {
LayoutType.Byte4A,
LayoutType.Byte4B,
LayoutType.Byte4C,
LayoutType.Short4ToFloat4A,
LayoutType.Byte4E,
}:
tangent = Vector4([
(x - 127) / 127.0
for x in unpack_from_buffer(buffer, "<4B")
])
self.tangents.append(tangent)
else:
not_implemented = True
elif member.semantic == LayoutSemantic.Bitangent:
if member.layout_type in {
LayoutType.Byte4A, LayoutType.Byte4B,
LayoutType.Byte4C, LayoutType.Byte4E
}:
self.bitangent = Vector4([
(x - 127) / 127.0
for x in unpack_from_buffer(buffer, "<4B")
])
else:
not_implemented = True
elif member.semantic == LayoutSemantic.VertexColor:
if member.layout_type == LayoutType.Float4:
self.colors.append(
Color(*unpack_from_buffer(buffer, "<4f")))
elif member.layout_type in {
LayoutType.Byte4A, LayoutType.Byte4C
}:
self.colors.append(
Color(*[
b / 255.0
for b in unpack_from_buffer(buffer, "<4B")
]))
else:
not_implemented = True
else:
not_implemented = True
if not_implemented:
raise NotImplementedError(
f"Unsupported vertex member semantic/type combination: "
f"{member.semantic.name} | {member.layout_type.name}")
