static FQuat read_fixed32_quat(uint val, FVector min, FVector max)
{
var q = new FQuat
{
X = ((val >> 21) - 1023) / 1023f * max.X + min.X,
Y = (((val & Y_MASK) >> 10) - 1023) / 1023f * max.Y + min.Y,
Z = ((val & X_MASK) - 511) / 511f * max.Z + min.Z,
W = 1
};
q.rebuild_w();
return(q);
}
internal FTransform(BinaryReader reader)
{
rotation = new FQuat(reader);
translation = new FVector(reader);
scale_3d = new FVector(reader);
}
private FTrack[] read_tracks(MemoryStream stream)
{
if (key_encoding_format != 2)
{
throw new NotImplementedException("Can only parse PerTrackCompression");
}
using (stream)
using (var reader = new BinaryReader(stream))
{
var num_tracks = compressed_track_offsets.Length / 2;
var num_frames = compressed_num_frames;
FTrack[] ret = new FTrack[num_tracks];
for (int i = 0; i < ret.Length; i++)
{
FTrack track = new FTrack();
// translation
var offset = compressed_track_offsets[i * 2];
if (offset != -1)
{
var header = new FAnimKeyHeader(reader);
var min = new FVector();
var max = new FVector();
if (header.key_format == AnimationCompressionFormat.IntervalFixed32NoW)
{
if ((header.component_mask & 1) != 0)
{
min.X = reader.ReadSingle();
max.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
min.Y = reader.ReadSingle();
max.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
min.Z = reader.ReadSingle();
max.Z = reader.ReadSingle();
}
}
track.translation = new FVector[header.num_keys];
for (int j = 0; j < track.translation.Length; j++)
{
switch (header.key_format)
{
case AnimationCompressionFormat.None:
case AnimationCompressionFormat.Float96NoW:
var fvec = new FVector();
if ((header.component_mask & 7) != 0)
{
if ((header.component_mask & 1) != 0)
{
fvec.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
fvec.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
fvec.Z = reader.ReadSingle();
}
}
else
{
fvec = new FVector(reader);
}
track.translation[j] = fvec;
break;
case AnimationCompressionFormat.Fixed48NoW:
fvec = new FVector();
if ((header.component_mask & 1) != 0)
{
fvec.X = read_fixed48(reader.ReadUInt16());
}
if ((header.component_mask & 2) != 0)
{
fvec.Y = read_fixed48(reader.ReadUInt16());
}
if ((header.component_mask & 4) != 0)
{
fvec.Z = read_fixed48(reader.ReadUInt16());
}
track.translation[j] = fvec;
break;
case AnimationCompressionFormat.IntervalFixed32NoW:
track.translation[j] = read_fixed32_vec(reader.ReadUInt32(), min, max);
break;
}
}
if (header.has_time_tracks)
{
track.translation_times = read_times(reader, header.num_keys, (uint)num_frames);
}
align_reader(reader);
}
// rotation
offset = compressed_track_offsets[(i * 2) + 1];
if (offset != -1)
{
var header = new FAnimKeyHeader(reader);
var min = new FVector();
var max = new FVector();
if (header.key_format == AnimationCompressionFormat.IntervalFixed32NoW)
{
if ((header.component_mask & 1) != 0)
{
min.X = reader.ReadSingle();
max.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
min.Y = reader.ReadSingle();
max.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
min.Z = reader.ReadSingle();
max.Z = reader.ReadSingle();
}
}
track.rotation = new FQuat[header.num_keys];
for (int j = 0; j < track.rotation.Length; j++)
{
switch (header.key_format)
{
case AnimationCompressionFormat.None:
case AnimationCompressionFormat.Float96NoW:
var fvec = new FVector();
if ((header.component_mask & 7) != 0)
{
if ((header.component_mask & 1) != 0)
{
fvec.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
fvec.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
fvec.Z = reader.ReadSingle();
}
}
else
{
fvec = new FVector(reader);
}
var fquat = new FQuat()
{
X = fvec.X,
Y = fvec.Y,
Z = fvec.Z
};
fquat.rebuild_w();
track.rotation[j] = fquat;
break;
case AnimationCompressionFormat.Fixed48NoW:
fquat = new FQuat();
if ((header.component_mask & 1) != 0)
{
fquat.X = read_fixed48_q(reader.ReadUInt16());
}
if ((header.component_mask & 2) != 0)
{
fquat.Y = read_fixed48_q(reader.ReadUInt16());
}
if ((header.component_mask & 4) != 0)
{
fquat.Z = read_fixed48_q(reader.ReadUInt16());
}
fquat.rebuild_w();
track.rotation[j] = fquat;
break;
case AnimationCompressionFormat.IntervalFixed32NoW:
track.rotation[j] = read_fixed32_quat(reader.ReadUInt32(), min, max);
break;
}
}
if (header.has_time_tracks)
{
track.rotation_times = read_times(reader, header.num_keys, (uint)num_frames);
}
align_reader(reader);
}
// scale
offset = compressed_scale_offsets.offset_data[i * compressed_scale_offsets.strip_size];
if (offset != -1)
{
var header = new FAnimKeyHeader(reader);
var min = new FVector();
var max = new FVector();
if (header.key_format == AnimationCompressionFormat.IntervalFixed32NoW)
{
if ((header.component_mask & 1) != 0)
{
min.X = reader.ReadSingle();
max.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
min.Y = reader.ReadSingle();
max.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
min.Z = reader.ReadSingle();
max.Z = reader.ReadSingle();
}
}
track.scale = new FVector[header.num_keys];
for (int j = 0; j < track.scale.Length; j++)
{
switch (header.key_format)
{
case AnimationCompressionFormat.None:
case AnimationCompressionFormat.Float96NoW:
var fvec = new FVector();
if ((header.component_mask & 7) != 0)
{
if ((header.component_mask & 1) != 0)
{
fvec.X = reader.ReadSingle();
}
if ((header.component_mask & 2) != 0)
{
fvec.Y = reader.ReadSingle();
}
if ((header.component_mask & 4) != 0)
{
fvec.Z = reader.ReadSingle();
}
}
else
{
fvec = new FVector(reader);
}
track.scale[j] = fvec;
break;
case AnimationCompressionFormat.Fixed48NoW:
fvec = new FVector();
if ((header.component_mask & 1) != 0)
{
fvec.X = read_fixed48(reader.ReadUInt16());
}
if ((header.component_mask & 2) != 0)
{
fvec.Y = read_fixed48(reader.ReadUInt16());
}
if ((header.component_mask & 4) != 0)
{
fvec.Z = read_fixed48(reader.ReadUInt16());
}
track.scale[j] = fvec;
break;
case AnimationCompressionFormat.IntervalFixed32NoW:
track.scale[j] = read_fixed32_vec(reader.ReadUInt32(), min, max);
break;
}
}
if (header.has_time_tracks)
{
track.scale_times = read_times(reader, header.num_keys, (uint)num_frames);
}
align_reader(reader);
}
ret[i] = track;
}
if (reader.BaseStream.Position != stream.Length)
{
throw new FileLoadException($"Could not read tracks correctly, {reader.BaseStream.Position - stream.Length} bytes remaining");
}
return(ret);
}
}