private void encode(ScilabString var, VectorOfDouble vec) {
// header
encodeHeader(var, vec, ScilabTypeEnum.sci_strings);
// add the offset table which contains the offset of each UTF-8 encoded strings
int offsetTableStart = vec.size();
vec.resize(offsetTableStart + var.getHeight() * var.getWidth());
int offsetTableAccumulated = 0;
// encode the strings as UTF-8 and store the associated offset
Charset utf8 = Charset.forName("UTF-8");
for (int i = 0; i < var.getHeight(); i++) {
for (int j = 0; j < var.getWidth(); j++) {
String str = var.getData()[i][j];
byte[] bytes = str.getBytes(utf8);
// append the terminal '\0'
final int requiredBytes = bytes.length + 1;
final int doubleLen = (requiredBytes + Double.BYTES - 1) / Double.BYTES;
// set the offset
offsetTableAccumulated += doubleLen;
vec.set(offsetTableStart++, offsetTableAccumulated);
// push the data through a temporary byte buffer
int index = vec.size();
vec.resize(index + doubleLen);
vec.asByteBuffer(index, doubleLen).put(bytes).put((byte) 0);
}
}
}
private void encode(ScilabBoolean var, VectorOfDouble vec) {
// header
encodeHeader(var, vec, ScilabTypeEnum.sci_boolean);
// put all the boolean as int accordingly to Scilab 6 implementation
final int requiredBytes = Integer.BYTES * var.getHeight() * var.getWidth();
final int doubleLen = (requiredBytes + Double.BYTES - 1) / Double.BYTES;
int index = vec.size();
vec.resize(index + doubleLen);
ByteBuffer buffer = vec.asByteBuffer(index, doubleLen);
for (int i = 0; i < var.getHeight(); i++) {
for (int j = 0; j < var.getWidth(); j++) {
buffer.putInt(var.getData()[i][j] ? 1 : 0);
}
}
}
private void encode(ScilabInteger var, VectorOfDouble vec) {
// pre-processing: retrieve the raw data per type
int sizeof;
long[][] longData = null;
short[][] shortData = null;
int[][] intData = null;
byte[][] byteData = null;
switch (var.getPrec()) {
case sci_int64:
case sci_uint64:
sizeof = Long.BYTES;
longData = var.getDataAsLong();
break;
case sci_int32:
case sci_uint32:
sizeof = Integer.BYTES;
intData = var.getDataAsInt();
break;
case sci_int16:
case sci_uint16:
sizeof = Short.BYTES;
shortData = var.getDataAsShort();
break;
case sci_int8:
case sci_uint8:
sizeof = Byte.BYTES;
byteData = var.getDataAsByte();
break;
default:
throw new IllegalArgumentException();
}
// Header
encodeHeader(var, vec, ScilabTypeEnum.sci_ints);
// push the data on a pre-allocated space
final int requiredBytes = sizeof * var.getHeight() * var.getWidth();
final int doubleLen = (requiredBytes + Double.BYTES - 1) / Double.BYTES;
final int index = vec.size();
vec.resize(index + doubleLen);
ByteBuffer view = vec.asByteBuffer(index, doubleLen);
for (int i = 0; i < var.getHeight(); i++) {
for (int j = 0; j < var.getWidth(); j++) {
switch (var.getPrec()) {
case sci_int64:
case sci_uint64:
view.putLong(longData[i][j]);
break;
case sci_int32:
case sci_uint32:
view.putInt(intData[i][j]);
break;
case sci_int16:
case sci_uint16:
view.putShort(shortData[i][j]);
break;
case sci_int8:
case sci_uint8:
view.put(byteData[i][j]);
break;
}
}
}
}