@Override
public ByteBuffer asNio() {
if (wrappedBuffer == null) {
return pointer.asByteBuffer();
} else {
return wrappedBuffer;
}
}
@Override
public IntBuffer asNioInt() {
if (offset() >= Integer.MAX_VALUE)
throw new IllegalStateException("Index out of bounds " + offset());
if (wrappedBuffer == null) {
return pointer.asByteBuffer().asIntBuffer();
} else if (offset() == 0) {
return wrappedBuffer.asIntBuffer();
} else return (IntBuffer) wrappedBuffer.asIntBuffer().position((int) offset());
}
/**
* @param data
* @param copy
*/
public BaseDataBuffer(int[] data, boolean copy) {
allocationMode = AllocUtil.getAllocationModeFromContext();
initTypeAndSize();
pointer = new IntPointer(data);
indexer = IntIndexer.create((IntPointer) pointer);
wrappedBuffer = pointer.asByteBuffer();
length = data.length;
underlyingLength = data.length;
}
@Override
public void read(DataInputStream s) {
try {
referencing = Collections.synchronizedSet(new HashSet<String>());
dirty = new AtomicBoolean(false);
allocationMode = AllocationMode.valueOf(s.readUTF());
length = s.readInt();
Type currentType = Type.valueOf(s.readUTF());
type = globalType;
if (currentType == Type.DOUBLE) elementSize = 8;
else if (currentType == Type.FLOAT || currentType == Type.INT) elementSize = 4;
if (currentType != globalType && currentType != Type.INT) {
log.warn(
"Loading a data stream with type different from what is set globally. Expect precision loss");
if (globalType == Type.INT) log.warn("Int to float/double widening UNSUPPORTED!!!");
}
pointerIndexerByGlobalType(currentType);
if (currentType == Type.DOUBLE) {
for (int i = 0; i < length(); i++) {
putByGlobalType(i, s.readDouble());
}
} else if (currentType == Type.FLOAT) {
for (int i = 0; i < length(); i++) {
putByGlobalType(i, s.readFloat());
}
} else {
for (int i = 0; i < length(); i++) {
putByGlobalType(i, s.readInt());
}
}
wrappedBuffer = pointer.asByteBuffer();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public long address() {
return pointer.address() + getElementSize() * offset();
}
private void fillPointerWithZero() {
Pointer.memset(this.pointer(), 0, getElementSize() * length());
}
// sets the nio wrapped buffer (allows to be overridden for other use cases like cuda)
protected void setNioBuffer() {
if (elementSize * length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create buffer of length " + length);
wrappedBuffer = pointer.asByteBuffer();
}