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357 lines
13 KiB
Python
357 lines
13 KiB
Python
#! /usr/bin/python3
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import sys
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try:
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from .bones import *
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from .util import *
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from .geomesh import GeoMesh, GeoFace, GeoVertex
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from .compression_anim import *
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except:
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from bones import *
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from util import *
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from geomesh import GeoMesh, GeoFace, GeoVertex
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from compression_anim import *
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#.anim header
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#Offset Size Description
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#0 4 (int32) headerSize Size of this header plus BoneAnimTrack data and skeleton hierarchy data.
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#4 256 (asciiz) name
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#260 256 (asciiz) baseAnimName
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#516 4 (float32) max_hip_displacement
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#520 4 (float32) length
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#524 4 (ptr u32) bone_tracks Offset to array of BoneAnimTrack structures.
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#528 4 (int32) bone_track_count
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#532 4 (int32) rotation_compression_type ??
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#536 4 (int32) position_compression_type ??
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#540 4 (ptr u32) skeletonHeirarchy ?? SkeletonHeirarchy
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#Below are reserved for use by the game.
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#544 4 (ptr u32) backupAnimTrack *SkeletonAnimTrack
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#548 4 (int32) loadstate
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#552 4 (float32) lasttimeused
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#556 4 (int32) fileAge
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#560 4*9 (int32[9]) spare_room
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#596 -
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#BoneAnimTrack
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#0 4 (ptr u32) rot_idx ?? Offset to the rotation data. Format depends on compression method.
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#4 4 (ptr u32) pos_idx ?? Offset to the position data. Format depends on compression method.
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#8 2 (u16) rot_fullkeycount ??
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#10 2 (u16) pos_fullkeycount ??
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#12 2 (u16) rot_count ??
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#14 2 (u16) pos_count ??
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#16 1 (char) id Bone ID.
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#17 1 (char) flags ??
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#18 2 (u16) pack_pad Padding to push the structure to 4 byte alignment.
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#20 -
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#SkeletonHeirarchy
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#0 4 (int) heirarchy_root ?? First bone in the hierarchy.
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#4 12*100 (BoneLink[BONES_ON_DISK])
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#1204 -
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#BONES_ON_DISK = 100
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#BoneLink
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#0 4 (int) child ?? First child bone?
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#4 4 (int) next ?? The next sibling bone?
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#8 4 (int/BoneId) id The ID of this bone.
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#12 -
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ROTATION_UNCOMPRESSED = 1 << 0
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ROTATION_COMPRESSED_TO_5_BYTES = 1 << 1
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ROTATION_COMPRESSED_TO_8_BYTES = 1 << 2
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POSITION_UNCOMPRESS = 1 << 3
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POSITION_COMPRESSED_TO_6_BYTES = 1 << 4
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ROTATION_DELTACODED = 1 << 5
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POSITION_DELTACODED = 1 << 6
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ROTATION_COMPRESSED_NONLINEAR = 1 << 7
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ROTATION_MASK = ROTATION_UNCOMPRESSED | ROTATION_COMPRESSED_TO_5_BYTES | ROTATION_COMPRESSED_TO_8_BYTES | ROTATION_DELTACODED | ROTATION_COMPRESSED_NONLINEAR
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POSITION_MASK = POSITION_UNCOMPRESS | POSITION_COMPRESSED_TO_6_BYTES | POSITION_DELTACODED
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class BoneLink:
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def __init__(self, data_or_child = None, next = None, boneid = None):
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self.child = -1
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self.next = -1
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self.boneid = -1
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if data_or_child is None:
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return
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if next is None:
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(self.child, self.next, self.boneid) = data_or_child.decode("<iii")
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else:
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self.child = data_or_child
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self.next = next
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self.boneid = boneid
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def dump(self):
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print("bone: %s (%s)" % (self.boneid, BONES_LIST[self.boneid]))
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print(" child: %s (%s)" % (self.child, BONES_LIST[self.child]))
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print(" next: %s (%s)" % (self.next, BONES_LIST[self.next]))
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class SkeletonHierarchy:
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def __init__(self):
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self.root = -1
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self.bones = []
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def parseData(self, data, size = None):
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self.root = data.decode("<i")[0]
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self.bones = []
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if size is None:
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size = len(data)
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count = int(math.floor((size - 4) / 12.0))
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for i in range(count): #BONES_ON_DISK):
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self.bones.append(BoneLink(data))
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def dump(self):
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print("SkeletonHierarchy: root: %s (%s) bones: %s" % (self.root, BONES_LIST[self.root], len(self.bones)))
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for b in self.bones:
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b.dump()
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class BoneAnimTrack:
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def __init__(self, data = b"", srcdata = None):
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self.rawdata = data
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self.srcdata = srcdata
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self.rotations_data_offset = 0
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self.positions_data_offset = 0
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self.rotations = []
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self.positions = []
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self.rot_fullkeycount = 0
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self.pos_fullkeycount = 0
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self.rot_count = 0
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self.pos_count = 0
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self.bone_id = 0
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self.flags = 0
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self.padding = b""
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if len(data):
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self.parseData()
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def parseData(self):
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self.data = Data(self.rawdata)
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self.rotations_data_offset = self.data.decode("I")[0]
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self.positions_data_offset = self.data.decode("I")[0]
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self.rot_fullkeycount = self.data.decode("H")[0]
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self.pos_fullkeycount = self.data.decode("H")[0]
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self.rot_count = self.data.decode("H")[0]
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self.pos_count = self.data.decode("H")[0]
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self.bone_id = self.data.decode("B")[0]
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self.flags = self.data.decode("B")[0]
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self.padding = self.data.read(2)
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self.parseRotations()
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self.parsePositions()
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def parseRotations(self):
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self.rotations = []
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offset = self.srcdata.offset
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self.srcdata.seek(self.rotations_data_offset)
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method = self.flags & ROTATION_MASK
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if method == ROTATION_UNCOMPRESSED:
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for i in range(self.rot_count):
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self.rotations.append(self.srcdata.decode("<ffff"))
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pass
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elif method == ROTATION_COMPRESSED_TO_5_BYTES:
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for i in range(self.rot_count):
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self.rotations.append(decompressQuaternion_5Byte(self.srcdata.read(5)))
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pass
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elif method == ROTATION_COMPRESSED_TO_8_BYTES:
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for i in range(self.rot_count):
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self.rotations.append(decompressQuaternion_8Byte(self.srcdata.read(8)))
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pass
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elif method == ROTATION_DELTACODED:
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raise
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pass
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elif method == ROTATION_COMPRESSED_NONLINEAR:
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raise Exception("Unsupported rotation compression: ROTATION_COMPRESSED_NONLINEAR")
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pass
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else:
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#raise Exception("bone track rotation type 0x%2.2x unknown" % (self.flags, ))
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pass
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self.srcdata.seek(offset)
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def parsePositions(self):
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self.positions = []
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offset = self.srcdata.offset
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self.srcdata.seek(self.positions_data_offset)
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method = self.flags & POSITION_MASK
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if method == POSITION_UNCOMPRESS:
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for i in range(self.pos_count):
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self.positions.append(self.srcdata.decode("<fff"))
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pass
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elif method == POSITION_COMPRESSED_TO_6_BYTES:
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for i in range(self.pos_count):
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self.positions.append(decompressVector3_6Byte(self.srcdata.read(6)))
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pass
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elif method == POSITION_DELTACODED:
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raise
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pass
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else:
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#raise Exception("bone track position type 0x%2.2x unknown" % (self.flags, ))
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pass
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self.srcdata.seek(offset)
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def dump(self):
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print("rotations_data_offset: %s" % (self.rotations_data_offset, ))
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print("positions_data_offset: %s" % (self.positions_data_offset, ))
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print("rot_fullkeycount: %s" % (self.rot_fullkeycount, ))
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print("pos_fullkeycount: %s" % (self.pos_fullkeycount, ))
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print("rot_count: %s" % (self.rot_count, ))
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print("pos_count: %s" % (self.pos_count, ))
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if self.bone_id > len(BONES_LIST):
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print("bone_id: %s (?)" % (self.bone_id, ))
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else:
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print("bone_id: %s %s" % (self.bone_id, BONES_LIST[self.bone_id]))
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print("flags: 0x%2.2x" % (self.flags, ))
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print("padding: %s" % (self.padding, ))
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print("rotations: %s" % (self.rotations, ))
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print("positions: %s" % (self.positions, ))
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class Anim:
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def __init__(self):
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self.data = b""
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self.offset = 0
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self.version = -1
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self.header_size = -1
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self.header_name = ""
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self.header_base_anim_name = ""
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self.header_max_hip_displacement = 0
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self.header_length = 0
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self.header_bone_tracks_offset = 0
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self.header_bone_track_count = 0
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self.header_rotation_compression_type = 0
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self.header_position_compression_type = 0
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self.header_skeleton_hierarchy_offset = 0
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self.header_backup_anim_track = 0
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self.header_load_state = 0
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self.header_last_time_used = 0
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self.header_file_age = 0
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self.header_spare_room = b""
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self.bone_tracks = []
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self.skeleton_hierarchy = []
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pass
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def loadFromData(self, data):
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self.data = Data(data)
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self.offset = 0
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self.parseData()
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pass
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def loadFromFile(self, filein):
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self.data = Data(filein.read())
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self.offset = 0
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self.parseData()
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pass
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def saveToData(self):
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self.encode()
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return self.data
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def saveToFile(self, fileout):
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self.encode()
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fileout.write(self.data)
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def parseData(self):
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self.data.seek(0)
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self.header_size = self.data.decode("i")[0]
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self.header_name = extractString(self.data.read(256))
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self.header_base_anim_name = extractString(self.data.read(256))
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self.header_max_hip_displacement = self.data.decode("f")[0]
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self.header_length = self.data.decode("f")[0]
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self.header_bone_tracks_offset = self.data.decode("I")[0]
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self.header_bone_track_count = self.data.decode("i")[0]
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self.header_rotation_compression_type = self.data.decode("i")[0]
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self.header_position_compression_type = self.data.decode("i")[0]
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self.header_skeleton_hierarchy_offset = self.data.decode("I")[0]
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self.header_backup_anim_track = self.data.decode("I")[0]
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self.header_load_state = self.data.decode("i")[0]
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self.header_last_time_used = self.data.decode("f")[0]
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self.header_file_age = self.data.decode("f")[0]
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self.header_spare_room = self.data.read(4 * 9)
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self.bone_tracks = []
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if self.header_bone_tracks_offset > 0:
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self.data.seek(self.header_bone_tracks_offset)
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for i in range(self.header_bone_track_count):
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self.bone_tracks.append(BoneAnimTrack(self.data.read(20), self.data))
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self.skeleton_hierarchy = None
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if self.header_skeleton_hierarchy_offset > 0:
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self.data.seek(self.header_skeleton_hierarchy_offset)
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self.skeleton_hierarchy = SkeletonHierarchy()
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if self.header_skeleton_hierarchy_offset > self.header_bone_tracks_offset:
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skel_size = self.header_size - self.header_skeleton_hierarchy_offset
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else:
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skel_size = self.header_bone_tracks_offset - self.header_skeleton_hierarchy_offset
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self.skeleton_hierarchy.parseData(self.data, skel_size)
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pass
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def encode(self):
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self.data = None
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def dump(self):
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print("header_size: %s" % (self.header_size, ))
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print("header_name: %s" % (self.header_name, ))
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print("header_base_anim_name: %s" % (self.header_base_anim_name, ))
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print("header_max_hip_displacement: %s" % (self.header_max_hip_displacement, ))
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print("header_length: %s" % (self.header_length, ))
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print("header_bone_tracks_offset: %s" % (self.header_bone_tracks_offset, ))
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print("header_bone_track_count: %s" % (self.header_bone_track_count, ))
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print("header_rotation_compression_type: %s" % (self.header_rotation_compression_type, ))
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print("header_position_compression_type: %s" % (self.header_position_compression_type, ))
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print("header_skeleton_hierarchy_offset: %s" % (self.header_skeleton_hierarchy_offset, ))
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print("header_backup_anim_track: %s" % (self.header_backup_anim_track, ))
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print("header_load_state: %s" % (self.header_load_state, ))
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print("header_last_time_used: %s" % (self.header_last_time_used, ))
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print("header_file_age: %s" % (self.header_file_age, ))
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print("header_spare_room: %s" % (self.header_spare_room, ))
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print("Bone Tracks:")
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for bt in self.bone_tracks:
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bt.dump()
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if self.skeleton_hierarchy is not None:
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self.skeleton_hierarchy.dump()
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pass
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def checkSkeletonHierarchy(self):
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if self.skeleton_hierarchy is None:
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return False
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return True
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def checkSkeletonBones(self):
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if self.skeleton_hierarchy is None:
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return False
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seen = []
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if self.checkSkeletonBonesBody(self.skeleton_hierarchy.root, seen):
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return True
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return False
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def checkSkeletonBonesBody(self, bone_id, seen):
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if bone_id == -1:
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return True
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if bone_id < -1:
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return False
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if bone_id in seen:
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return False
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seen.append(bone_id)
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bones = self.skeleton_hierarchy.bones
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if bone_id >= len(bones):
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return False
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if bones[bone_id].boneid != bone_id:
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return False
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if not self.checkSkeletonBonesBody(bones[bone_id].next, seen):
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return False
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if not self.checkSkeletonBonesBody(bones[bone_id].child, seen):
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return False
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return True
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if __name__ == "__main__":
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if len(sys.argv) <= 1 or len(sys.argv) > 3:
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print("Usage:")
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print(" %s <file_in> [<file_out>]" % (sys.argv[0], ))
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print("Test loads a .anim file, dumps its content, and optionally writes its content out.")
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exit(0)
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fh = open(sys.argv[1], "rb")
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anim = Anim()
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anim.loadFromFile(fh)
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fh.close()
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#print(sys.argv)
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if len(sys.argv) <= 2:
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fho = None
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else:
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fho = open(sys.argv[2], "wb")
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if fho is not None:
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data = anim.saveToData()
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#anim.dump()
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fho.write(data)
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else:
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anim.dump()
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#print("%s" % [anim.header_data])
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