Example #1
0
        public static W3dMotionChannelTimeCodedData Parse(BinaryReader reader, ushort numTimeCodes, W3dAnimationChannelType channelType)
        {
            var keyframes = new ushort[numTimeCodes];

            for (var i = 0; i < numTimeCodes; i++)
            {
                keyframes[i] = reader.ReadUInt16();
            }

            if (numTimeCodes % 2 != 0)
            {
                // Align to 4-byte boundary.
                reader.ReadUInt16();
            }

            var data = new W3dAnimationChannelDatum[numTimeCodes];

            for (var i = 0; i < numTimeCodes; i++)
            {
                data[i] = W3dAnimationChannelDatum.Parse(reader, channelType);
            }

            return(new W3dMotionChannelTimeCodedData
            {
                TimeCodes = keyframes,
                Values = data
            });
        }
Example #2
0
        internal static W3dAnimationChannel Parse(BinaryReader reader, W3dParseContext context)
        {
            return(ParseChunk(reader, context, header =>
            {
                var startPosition = reader.BaseStream.Position;

                var result = new W3dAnimationChannel
                {
                    FirstFrame = reader.ReadUInt16(),
                    LastFrame = reader.ReadUInt16(),
                    VectorLength = reader.ReadUInt16(),
                    ChannelType = reader.ReadUInt16AsEnum <W3dAnimationChannelType>(),
                    Pivot = reader.ReadUInt16(),
                    Unknown = reader.ReadUInt16()
                };

                ValidateChannelDataSize(result.ChannelType, result.VectorLength);

                var numElements = result.LastFrame - result.FirstFrame + 1;
                var data = new W3dAnimationChannelDatum[numElements];

                for (var i = 0; i < numElements; i++)
                {
                    data[i] = W3dAnimationChannelDatum.Parse(reader, result.ChannelType);
                }

                result.Data = data;

                result.NumPadBytes = (uint)(context.CurrentEndPosition - reader.BaseStream.Position);
                reader.BaseStream.Seek((int)result.NumPadBytes, SeekOrigin.Current);

                return result;
            }));
        }
Example #3
0
        public static W3dAnimationChannel Parse(BinaryReader reader, uint chunkSize)
        {
            var startPosition = reader.BaseStream.Position;

            var result = new W3dAnimationChannel
            {
                FirstFrame   = reader.ReadUInt16(),
                LastFrame    = reader.ReadUInt16(),
                VectorLength = reader.ReadUInt16(),
                ChannelType  = reader.ReadUInt16AsEnum <W3dAnimationChannelType>(),
                Pivot        = reader.ReadUInt16()
            };

            reader.ReadUInt16(); // Pad

            ValidateChannelDataSize(result.ChannelType, result.VectorLength);

            var numElements = result.LastFrame - result.FirstFrame + 1;
            var data        = new W3dAnimationChannelDatum[numElements];

            for (var i = 0; i < numElements; i++)
            {
                data[i] = W3dAnimationChannelDatum.Parse(reader, result.ChannelType);
            }

            result.Data = data;

            // Pad
            var endPosition = startPosition + chunkSize;

            reader.ReadBytes((int)(endPosition - reader.BaseStream.Position));

            return(result);
        }
Example #4
0
        public static W3dAnimationChannelDatum[] ReadAdaptiveDelta(BinaryReader reader, uint numFrames, W3dAnimationChannelType type, int vectorLen, float scale, int nBits)
        {
            float scaleFactor = 1.0f;

            switch (nBits)
            {
            //When deltas are 8 bits large we need to scale them to the range [-16;16]
            case 8:
                scaleFactor = 1 / 16.0f;
                break;

            //Do nothing for 4 bit deltas since they already map to [-16;16]
            case 4:
                break;

            default:
                throw new InvalidOperationException("Adaptive delta only supported 4 bit & 8 bit!");
            }

            uint count = (numFrames + 15) >> 4;
            var  data  = new W3dAnimationChannelDatum[numFrames];

            //First read all initial values
            for (int k = 0; k < vectorLen; ++k)
            {
                var initial = reader.ReadSingle();
                UpdateDatum(ref data[0], initial, type, k);
            }

            //Then read the interleaved delta blocks
            for (int i = 0; i < count; ++i)
            {
                for (int k = 0; k < vectorLen; ++k)
                {
                    var blockIndex = reader.ReadByte();
                    var blockScale = Table[blockIndex];
                    var deltaScale = blockScale * scale * scaleFactor;

                    //read deltas for the next
                    var deltas = ReadDeltaBlock(reader, nBits);

                    for (int j = 0; j < deltas.Length; ++j)
                    {
                        int idx = i * 16 + j + 1;

                        if (idx >= numFrames)
                        {
                            break;
                        }

                        var value = GetValue(data[idx - 1], type, k) + deltaScale * deltas[j];
                        UpdateDatum(ref data[idx], value, type, k);
                    }
                }
            }

            return(data);
        }
Example #5
0
        public static W3dAnimationChannelDatum[] Decode(
            W3dAdaptiveDeltaData data,
            uint numFrames,
            float scale)
        {
            var scaleFactor = 1.0f;

            switch (data.BitCount)
            {
            // Do nothing for 4 bit deltas since they already map to [-16;16]
            case W3dAdaptiveDeltaBitCount.FourBits:
                break;

            // When deltas are 8 bits large we need to scale them to the range [-16;16]
            case W3dAdaptiveDeltaBitCount.EightBits:
                scaleFactor = 1 / 16.0f;
                break;

            default:
                throw new InvalidOperationException("Adaptive delta only supported 4 bit & 8 bit!");
            }

            var result = new W3dAnimationChannelDatum[numFrames];

            result[0] = data.InitialDatum;

            for (var i = 0; i < data.DeltaBlocks.Length; i++)
            {
                var deltaBlock = data.DeltaBlocks[i];

                var blockIndex = deltaBlock.BlockIndex;
                var blockScale = Table[blockIndex];
                var deltaScale = blockScale * scale * scaleFactor;

                var vectorIndex = deltaBlock.VectorIndex;

                var deltas = deltaBlock.GetDeltas(data.BitCount);

                for (var j = 0; j < deltas.Length; j++)
                {
                    var idx = ((i / data.VectorLength) * 16) + j + 1;
                    if (idx >= numFrames)
                    {
                        break;
                    }

                    var value = result[idx - 1].GetValue(vectorIndex) + deltaScale * deltas[j];
                    result[idx] = result[idx].WithValue(value, vectorIndex);

                    idx++;
                }
            }

            return(result);
        }
Example #6
0
        internal static W3dTimeCodedDatum Parse(BinaryReader reader, W3dAnimationChannelType channelType)
        {
            var result = new W3dTimeCodedDatum();

            result.TimeCode = reader.ReadUInt32();

            // MSB is used to indicate a binary (non interpolated) movement
            if ((result.TimeCode >> 31) == 1)
            {
                result.NonInterpolatedMovement = true;
                // TODO: non-interpolated movement.

                result.TimeCode &= ~(1 << 31);
            }

            result.Value = W3dAnimationChannelDatum.Parse(reader, channelType);

            return(result);
        }
Example #7
0
        private static float GetValue(W3dAnimationChannelDatum datum, W3dAnimationChannelType type, int i = 0)
        {
            if (i > 0 && type != W3dAnimationChannelType.Quaternion)
            {
                throw new InvalidDataException();
            }

            switch (type)
            {
            case W3dAnimationChannelType.TranslationX:
            case W3dAnimationChannelType.TranslationY:
            case W3dAnimationChannelType.TranslationZ:
            case W3dAnimationChannelType.XR:
            case W3dAnimationChannelType.YR:
            case W3dAnimationChannelType.ZR:
            case W3dAnimationChannelType.UnknownBfme:
                return(datum.FloatValue);

            case W3dAnimationChannelType.Quaternion:
                switch (i)
                {
                case 0:
                    return(datum.Quaternion.X);

                case 1:
                    return(datum.Quaternion.Y);

                case 2:
                    return(datum.Quaternion.Z);

                case 3:
                    return(datum.Quaternion.W);

                default:
                    throw new InvalidOperationException();
                }
                break;

            default:
                throw new NotImplementedException();
            }
        }
Example #8
0
        private static void UpdateDatum(ref W3dAnimationChannelDatum datum, float value, W3dAnimationChannelType type, int i = 0)
        {
            if (i > 0 && type != W3dAnimationChannelType.Quaternion)
            {
                throw new InvalidDataException();
            }

            switch (type)
            {
            case W3dAnimationChannelType.TranslationX:
            case W3dAnimationChannelType.TranslationY:
            case W3dAnimationChannelType.TranslationZ:
            case W3dAnimationChannelType.XR:
            case W3dAnimationChannelType.YR:
            case W3dAnimationChannelType.ZR:
            case W3dAnimationChannelType.UnknownBfme:
                datum.FloatValue = value;
                break;

            case W3dAnimationChannelType.Quaternion:
                switch (i)
                {
                case 0:
                    datum.Quaternion.X = value;
                    break;

                case 1:
                    datum.Quaternion.Y = value;
                    break;

                case 2:
                    datum.Quaternion.Z = value;
                    break;

                case 3:
                    datum.Quaternion.W = value;
                    break;
                }
                break;
            }
        }
Example #9
0
        public static W3dTimeCodedAnimationChannel Parse(BinaryReader reader)
        {
            var startPosition = reader.BaseStream.Position;

            var result = new W3dTimeCodedAnimationChannel
            {
                NumTimeCodes = reader.ReadUInt32(),
                Pivot        = reader.ReadUInt16(),
                VectorLength = reader.ReadByte(),
                ChannelType  = (W3dAnimationChannelType)reader.ReadByte()
            };

            W3dAnimationChannel.ValidateChannelDataSize(result.ChannelType, result.VectorLength);

            var data = new W3dTimeCodedDatum[result.NumTimeCodes];

            for (var i = 0; i < result.NumTimeCodes; i++)
            {
                var datum = new W3dTimeCodedDatum();

                datum.TimeCode = reader.ReadUInt32();

                // MSB is used to indicate a binary (non interpolated) movement
                if ((datum.TimeCode >> 31) == 1)
                {
                    // TODO: non-interpolated movement.

                    datum.TimeCode &= ~(1 << 31);
                }

                datum.Value = W3dAnimationChannelDatum.Parse(reader, result.ChannelType);

                data[i] = datum;
            }

            result.Data = data;

            return(result);
        }
Example #10
0
        internal static W3dAdaptiveDeltaData Parse(
            BinaryReader reader,
            uint numFrames,
            W3dAnimationChannelType type,
            int vectorLength,
            W3dAdaptiveDeltaBitCount bitCount)
        {
            var count = (numFrames + 15) >> 4;

            // First read all initial values
            var result = new W3dAdaptiveDeltaData
            {
                BitCount     = bitCount,
                VectorLength = vectorLength,
                InitialDatum = W3dAnimationChannelDatum.Parse(reader, type)
            };

            var numBits = (int)bitCount;

            // Then read the interleaved delta blocks
            var deltaBlocks = new W3dAdaptiveDeltaBlock[count * vectorLength];

            for (var i = 0; i < count; i++)
            {
                for (var j = 0; j < vectorLength; j++)
                {
                    deltaBlocks[(i * vectorLength) + j] = W3dAdaptiveDeltaBlock.Parse(
                        reader,
                        j,
                        numBits);
                }
            }
            result.DeltaBlocks = deltaBlocks;

            return(result);
        }