public static Vector3[] GetCompressedVertexArray(byte[] data, CPVertexCompressionMode compressionMode)
{
float precision = GetPrecision(compressionMode);
//Debug.Log("Decompress Vertex Data precision:" + precision + " compressionMode:" + compressionMode);
BitInputStream bitInputStream = new BitInputStream(data);
int minX = bitInputStream.ReadBits(24) - CPFloatArrayData.MIDDLE_VALUE;
int minY = bitInputStream.ReadBits(24) - CPFloatArrayData.MIDDLE_VALUE;
int minZ = bitInputStream.ReadBits(24) - CPFloatArrayData.MIDDLE_VALUE;
int bitsSize = bitInputStream.ReadBits(8);
int size = bitInputStream.ReadBits(24);
Vector3[] values = new Vector3[size];
for (int i = 0; i < values.Length; i++)
{
int read = bitInputStream.ReadBits(bitsSize);
values[i].x = (minX + read) * precision;
read = bitInputStream.ReadBits(bitsSize);
values[i].y = (minY + read) * precision;
read = bitInputStream.ReadBits(bitsSize);
values[i].z = (minZ + read) * precision;
}
return(values);
}
public static short[] GetCompressedShortsArray(byte[] data)
{
BitInputStream bitInputStream = new BitInputStream(data);
int min = bitInputStream.ReadBits(16);
int bitsSize = bitInputStream.ReadBits(8);
int size = bitInputStream.ReadBits(24);
short[] values = new short[size];
int delta = min - MIDDLE_VALUE;
for (int i = 0; i < values.Length; i++)
{
int read = bitInputStream.ReadBits(bitsSize);
values[i] = (short)(delta + read);
}
return(values);
}
public static Vector3[] getCompressedVectorArray(byte[] data, CPVectorCompressionMode compressionMode)
{
float recPrecision = getModeResize(compressionMode);
float precision = 1.0f / recPrecision;
BitInputStream bitInputStream = new BitInputStream(data);
int bitsSize = getModeBitsize(compressionMode);
int size = bitInputStream.ReadBits(24);
Vector3[] values = new Vector3[size];
for (int i = 0; i < values.Length; i++)
{
int read = bitInputStream.ReadBits(bitsSize);
values[i].x = (read) * precision - 1;
read = bitInputStream.ReadBits(bitsSize);
values[i].y = (read) * precision - 1;
read = bitInputStream.ReadBits(bitsSize);
values[i].z = (read) * precision - 1;
values[i].Normalize();
}
return(values);
}
