public static object GetObject(int type, int numel, ByteBuffer buf)
{
switch (type) {
case CHAR:
byte[] strBytes = new byte[numel];
buf.Get(ref strBytes);
System.Text.Encoding encoding = buf.Encoding;
string val = encoding.GetString(strBytes, 0, strBytes.Length);
return val;
case INT8:
goto case UINT8;
case UINT8:
byte[] int8array = new byte[numel];
buf.Get(ref int8array);
return (object)int8array;
case INT16:
goto case UINT16;
case UINT16:
short[] int16array = new short[numel];
// The following would be faster, but DOES NOT
// increment the position of the original ByteBuffer!!!
// buf.asShortBuffer().get(int16array);
for (int i = 0; i < numel; i++)
int16array[i] = buf.GetShort();
return (object)int16array;
case INT32:
goto case UINT32;
case UINT32:
int[] int32array = new int[numel];
for (int i = 0; i < numel; i++)
int32array[i] = buf.GetInt();
return (object)int32array;
case INT64:
goto case UINT64;
case UINT64:
long[] int64array = new long[numel];
for (int i = 0; i < numel; i++)
int64array[i] = buf.GetLong();
return (object)int64array;
case FLOAT32:
float[] float32array = new float[numel];
for (int i = 0; i < numel; i++)
float32array[i] = buf.GetFloat();
return (object)float32array;
case FLOAT64:
double[] float64array = new double[numel];
for (int i = 0; i < numel; i++)
float64array[i] = buf.GetDouble();
return (object)float64array;
default:
return null;
}
}
/// <summary>
/// Initializes a Header from the specified <see cref="FieldTrip.Buffer.ByteBuffer"/>.
/// </summary>
/// <param name="buf">The buffer to read the header from.</param>
public Header(ByteBuffer buf)
{
NumChans = buf.GetInt();
NumSamples = buf.GetInt();
NumEvents = buf.GetInt();
FSample = buf.GetFloat();
DataType = buf.GetInt();
int size = buf.GetInt();
Labels = new string[NumChans];
while (size > 0) {
int chunkType = buf.GetInt();
int chunkSize = buf.GetInt();
byte[] bs = new byte[chunkSize];
buf.Get(ref bs);
if (chunkType == CHUNK_CHANNEL_NAMES) {
int n = 0, len = 0, index = 0;
for (int pos = 0; pos < chunkSize; pos++) {
if (bs[pos] == 0) {
if (len > 0) {
Labels[n] = Encoding.Default.GetString(bs, index, len);
index = pos + 1;
}
len = 0;
if (++n == NumChans)
break;
} else {
len++;
}
}
} else {
// ignore all other chunks for now
}
size -= 8 + chunkSize;
}
}
