public Int16Array copy(ShortBuffer buffer) {
if (GWT.isProdMode()) {
return ((Int16Array) ((HasArrayBufferView) buffer).getTypedArray())
.subarray(buffer.position(), buffer.remaining());
} else {
ensureCapacity(buffer);
for (int i = buffer.position(), j = 0; i < buffer.limit(); i++, j++) {
shortBuffer.set(j, buffer.get(i));
}
return shortBuffer.subarray(0, buffer.remaining());
}
}
/**
* Write a liftblock
*
* @param coeff an array
* @param bmin start position
* @param bmax end position
*/
void write_liftblock(Int16Array coeff, int bmin, int bmax) {
int n = bmin << 4;
coeff.set(zeros);
for (int n1 = bmin; n1 < bmax; n1++) {
Block d = getBlock(n1);
if (d == null) {
n += 16;
} else {
for (int n2 = 0; n2 < 16; ) {
coeff.set(zigzagloc[n], d.get(n2));
n2++;
n++;
}
}
}
}
private void ensureCapacity(ShortBuffer buffer) {
if (buffer.remaining() > shortBuffer.length()) {
shortBuffer = TypedArrays.createInt16Array(buffer.remaining());
}
}