private double interpolate_value(
final UnstructuredVolumeObject volume, final int index0, final int index1)
throws KVSException {
Buffer buf = volume.values();
float[] coords = volume.coords();
final float value0 = this.substitute_plane_equation(new Vector3f(coords, 3 * index0));
final float value1 = this.substitute_plane_equation(new Vector3f(coords, 3 * index1));
final float ratio = kvs.core.util.Math.abs(value0 / (value1 - value0));
if (buf instanceof ByteBuffer) {
ByteBuffer values = (ByteBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof ShortBuffer) {
ShortBuffer values = (ShortBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof IntBuffer) {
IntBuffer values = (IntBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof LongBuffer) {
LongBuffer values = (LongBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof FloatBuffer) {
FloatBuffer values = (FloatBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof DoubleBuffer) {
DoubleBuffer values = (DoubleBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof CharBuffer) {
CharBuffer values = (CharBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else {
throw new KVSException("Unsupported data type");
}
}
protected void loadData(String s) {
try {
double[] doubles = parseDoubles(s);
if (doubles.length != width * height) {
throw new IOException(
"File doesn't contain width x height (" + (width * height) + ") values");
}
DoubleBuffer buffer = Buffers.newDirectDoubleBuffer(width * height);
buffer.put(doubles);
buffer.rewind();
for (int i = 0; i < width * height; i++) {
double elev = buffer.get();
minElevation = Math.min(minElevation, elev);
maxElevation = Math.max(maxElevation, elev);
}
synchronized (elevationLock) {
this.elevations = buffer;
}
// force a recalculate
lastGlobe = null;
firePropertyChange(AVKey.LAYER, null, this);
} catch (IOException e) {
if (loadAttempts < MAX_DOWNLOAD_ATTEMPTS) {
loaded = false;
Downloader.removeCache(url);
Logging.logger().warning("Deleted corrupt cached data file for " + url);
} else {
e.printStackTrace();
}
}
}
@NotNull
public static IndexedCollection<Double> ofDouble(@NotNull Collection<Double> intCollection) {
DoubleBuffer vals = DoubleBuffer.allocate(intCollection.size());
intCollection.forEach(vals::put);
vals.flip();
return new DoubleBufferCollection(vals);
}
@Test
public final void testBufferEndianness() {
final T m = this.newMatrix();
final DoubleBuffer b = m.getDirectDoubleBuffer();
Assert.assertEquals(ByteOrder.nativeOrder(), b.order());
}
public void testToString() {
String str = buf.toString();
assertTrue(str.indexOf("Double") >= 0 || str.indexOf("double") >= 0);
assertTrue(str.indexOf("" + buf.position()) >= 0);
assertTrue(str.indexOf("" + buf.limit()) >= 0);
assertTrue(str.indexOf("" + buf.capacity()) >= 0);
}
/**
* Store this vector into the supplied {@link DoubleBuffer} starting at the specified absolute
* buffer position/index.
*
* <p>This method will not increment the position of the given DoubleBuffer.
*
* @param index the absolute position into the DoubleBuffer
* @param buffer will receive the values of this vector in <tt>x, y, z, w</tt> order
* @return the passed in buffer
*/
public DoubleBuffer get(int index, DoubleBuffer buffer) {
buffer.put(index, x);
buffer.put(index + 1, y);
buffer.put(index + 2, z);
buffer.put(index + 3, w);
return buffer;
}
public static void main(String[] args) {
ByteBuffer bb = ByteBuffer.wrap(new byte[] {0, 0, 0, 0, 0, 0, 0, 'a'});
bb.rewind();
printnb("Byte Buffer ");
while (bb.hasRemaining()) printnb(bb.position() + " -> " + bb.get() + ", ");
print();
CharBuffer cb = ((ByteBuffer) bb.rewind()).asCharBuffer();
printnb("Char Buffer ");
while (cb.hasRemaining()) printnb(cb.position() + " -> " + cb.get() + ", ");
print();
FloatBuffer fb = ((ByteBuffer) bb.rewind()).asFloatBuffer();
printnb("Float Buffer ");
while (fb.hasRemaining()) printnb(fb.position() + " -> " + fb.get() + ", ");
print();
IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer();
printnb("Int Buffer ");
while (ib.hasRemaining()) printnb(ib.position() + " -> " + ib.get() + ", ");
print();
LongBuffer lb = ((ByteBuffer) bb.rewind()).asLongBuffer();
printnb("Long Buffer ");
while (lb.hasRemaining()) printnb(lb.position() + " -> " + lb.get() + ", ");
print();
ShortBuffer sb = ((ByteBuffer) bb.rewind()).asShortBuffer();
printnb("Short Buffer ");
while (sb.hasRemaining()) printnb(sb.position() + " -> " + sb.get() + ", ");
print();
DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer();
printnb("Double Buffer ");
while (db.hasRemaining()) printnb(db.position() + " -> " + db.get() + ", ");
}
/**
* Read this vector from the supplied {@link DoubleBuffer} starting at the specified absolute
* buffer position/index.
*
* <p>This method will not increment the position of the given DoubleBuffer.
*
* @param index the absolute position into the DoubleBuffer
* @param buffer values will be read in <tt>x, y, z, w</tt> order
* @return this
*/
public Vector4d set(int index, DoubleBuffer buffer) {
x = buffer.get(index);
y = buffer.get(index + 1);
z = buffer.get(index + 2);
w = buffer.get(index + 3);
return this;
}
/**
* Create a data buffer from the given length
*
* @param buffer
* @param length
*/
public BaseDataBuffer(ByteBuffer buffer, int length) {
allocationMode = Nd4j.alloc;
this.length = length;
buffer.order(ByteOrder.nativeOrder());
if (allocationMode() == AllocationMode.DIRECT) {
this.wrappedBuffer = buffer;
} else if (dataType() == Type.INT) {
intData = new int[length];
IntBuffer intBuffer = buffer.asIntBuffer();
for (int i = 0; i < length; i++) {
intData[i] = intBuffer.get(i);
}
} else if (dataType() == Type.DOUBLE) {
doubleData = new double[length];
DoubleBuffer doubleBuffer = buffer.asDoubleBuffer();
for (int i = 0; i < length; i++) {
doubleData[i] = doubleBuffer.get(i);
}
} else if (dataType() == Type.FLOAT) {
floatData = new float[length];
FloatBuffer floatBuffer = buffer.asFloatBuffer();
for (int i = 0; i < length; i++) {
floatData[i] = floatBuffer.get(i);
}
}
}
@Override
public DoubleBuffer asNioDouble() {
if (wrappedBuffer == null) {
if (offset() == 0) {
return DoubleBuffer.wrap(doubleData);
} else return (DoubleBuffer) DoubleBuffer.wrap(doubleData).position(offset());
}
if (offset() == 0) {
return wrappedBuffer.asDoubleBuffer();
} else return (DoubleBuffer) wrappedBuffer.asDoubleBuffer().position(offset());
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "toString",
args = {})
public void testToString() {
String str = buf.toString();
assertTrue(str.indexOf("Double") >= 0 || str.indexOf("double") >= 0);
assertTrue(str.indexOf("" + buf.position()) >= 0);
assertTrue(str.indexOf("" + buf.limit()) >= 0);
assertTrue(str.indexOf("" + buf.capacity()) >= 0);
}
public void double2byte(double[] src, int off, int len, byte[] dst, int off2) {
if (len > (BUFFER_SIZE / 8)) {
DoubleBuffer buffer = ByteBuffer.wrap(dst, off2, len * 8).order(order).asDoubleBuffer();
buffer.put(src, off, len);
} else {
doubleBuffer.clear();
doubleBuffer.put(src, off, len);
byteBuffer.position(0).limit(len * 8);
byteBuffer.get(dst, off2, len * 8);
}
}
public void byte2double(byte[] src, int index_src, double[] dst, int index_dst, int len) {
if (len > (BUFFER_SIZE / 8)) {
DoubleBuffer buffer = ByteBuffer.wrap(src, index_src, len * 8).order(order).asDoubleBuffer();
buffer.get(dst, index_dst, len);
} else {
byteBuffer.clear();
byteBuffer.put(src, index_src, len * 8);
doubleBuffer.position(0).limit(len);
doubleBuffer.get(dst, index_dst, len);
}
}
/*
* test for method static DoubleBuffer wrap(double[] array, int offset, int
* length) test covers following usecases: 1. case for check DoubleBuffer
* buf2 properties 2. case for check equal between buf2 and double array[]
* 3. case for check a buf2 dependens to array[] 4. case expected
* IndexOutOfBoundsException
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "wrap",
args = {double[].class, int.class, int.class})
public void test_Wrap$DII() {
double array[] = new double[BUFFER_LENGTH];
int offset = 5;
int length = BUFFER_LENGTH - offset;
loadTestData1(array, 0, BUFFER_LENGTH);
DoubleBuffer buf2 = DoubleBuffer.wrap(array, offset, length);
// case: DoubleBuffer buf2 properties is satisfy the conditions
// specification
assertEquals(buf2.capacity(), array.length);
assertEquals(buf2.position(), offset);
assertEquals(buf2.limit(), offset + length);
assertEquals(buf2.arrayOffset(), 0);
// case: DoubleBuffer buf2 is equal to double array[]
assertContentEquals(buf2, array, 0, array.length);
// case: DoubleBuffer buf2 is depended to double array[]
loadTestData2(array, 0, buf.capacity());
assertContentEquals(buf2, array, 0, array.length);
// case: expected IndexOutOfBoundsException
try {
offset = 7;
buf2 = DoubleBuffer.wrap(array, offset, length);
fail("wrap method does not throws expected exception");
} catch (IndexOutOfBoundsException e) {
// expected
}
}
/*
* Class under test for java.nio.DoubleBuffer get(double[])
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "get",
args = {double[].class})
public void testGetdoubleArray() {
double array[] = new double[1];
buf.clear();
for (int i = 0; i < buf.capacity(); i++) {
assertEquals(buf.position(), i);
DoubleBuffer ret = buf.get(array);
assertEquals(array[0], buf.get(i), 0.01);
assertSame(ret, buf);
}
buf.get(new double[0]);
try {
buf.get(array);
fail("Should throw Exception"); // $NON-NLS-1$
} catch (BufferUnderflowException e) {
// expected
}
try {
buf.get((double[]) null);
fail("Should throw Exception"); // $NON-NLS-1$
} catch (NullPointerException e) {
// expected
}
}
private void recalculateColors() {
synchronized (elevationLock) {
if (elevations != null) {
elevations.rewind();
colors.rewind();
for (int i = 0; i < width * height; i++) {
double[] color =
chroma(
(elevations.get() - minElevation) / (maxElevation - minElevation), getOpacity());
colors.put(color);
}
}
}
}
/*
* Class under test for java.nio.DoubleBuffer put(int, double)
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Doesn't verify ReadOnlyBufferException.",
method = "put",
args = {int.class, double.class})
public void testPutintdouble() {
buf.clear();
for (int i = 0; i < buf.capacity(); i++) {
assertEquals(buf.position(), 0);
DoubleBuffer ret = buf.put(i, (double) i);
assertEquals(buf.get(i), (double) i, 0.0);
assertSame(ret, buf);
}
try {
buf.put(-1, 0);
fail("Should throw Exception"); // $NON-NLS-1$
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
buf.put(buf.limit(), 0);
fail("Should throw Exception"); // $NON-NLS-1$
} catch (IndexOutOfBoundsException e) {
// expected
}
}
private static double[] loadRawDouble(String source) throws Exception {
System.out.println("Loading data...");
long time = System.nanoTime();
RandomAccessFile raf = new RandomAccessFile(source, "r");
FileChannel inChannel = raf.getChannel();
MappedByteBuffer buffer = inChannel.map(FileChannel.MapMode.READ_ONLY, 0, inChannel.size());
DoubleBuffer dbuf = buffer.asDoubleBuffer();
double[] dest = new double[dbuf.remaining()];
dbuf.get(dest);
long elapsed = System.nanoTime() - time;
System.out.println("Load complete... " + (elapsed / 1000000) + "ms");
raf.close();
return dest;
}
private static void bulkPut(VertexBuffer.Format format, Buffer buf1, Buffer buf2) {
switch (format) {
case Byte:
case Half:
case UnsignedByte:
((ByteBuffer) buf1).put((ByteBuffer) buf2);
break;
case Short:
case UnsignedShort:
((ShortBuffer) buf1).put((ShortBuffer) buf2);
break;
case Int:
case UnsignedInt:
((IntBuffer) buf1).put((IntBuffer) buf2);
break;
case Float:
((FloatBuffer) buf1).put((FloatBuffer) buf2);
break;
case Double:
((DoubleBuffer) buf1).put((DoubleBuffer) buf2);
break;
default:
throw new UnsupportedOperationException("Unrecoginized buffer format: " + format);
}
}
public static void glWeightARB(DoubleBuffer pWeights) {
ContextCapabilities caps = GLContext.getCapabilities();
long function_pointer = caps.glWeightdvARB;
BufferChecks.checkFunctionAddress(function_pointer);
BufferChecks.checkDirect(pWeights);
nglWeightdvARB(pWeights.remaining(), MemoryUtil.getAddress(pWeights), function_pointer);
}
private static void putValue(VertexBuffer.Format format, Buffer buf1, Buffer buf2, int index) {
switch (format) {
case Byte:
case Half:
case UnsignedByte:
byte b = ((ByteBuffer) buf2).get(index);
((ByteBuffer) buf1).put(b);
break;
case Short:
case UnsignedShort:
short s = ((ShortBuffer) buf2).get(index);
((ShortBuffer) buf1).put(s);
break;
case Int:
case UnsignedInt:
int i = ((IntBuffer) buf2).get(index);
((IntBuffer) buf1).put(i);
break;
case Float:
float f = ((FloatBuffer) buf2).get(index);
((FloatBuffer) buf1).put(f);
break;
case Double:
double d = ((DoubleBuffer) buf2).get(index);
((DoubleBuffer) buf1).put(d);
break;
default:
throw new UnsupportedOperationException("Unrecoginized buffer format: " + format);
}
}
protected final void enableClipping(int yTop, int yBottom) {
if (doubleBuffer == null) {
doubleBuffer = BufferUtils.createByteBuffer(32).asDoubleBuffer();
}
doubleBuffer.clear();
doubleBuffer.put(0).put(1).put(0).put(-yTop).flip();
glClipPlane(GL_CLIP_PLANE0, doubleBuffer);
doubleBuffer.clear();
doubleBuffer.put(0).put(-1).put(0).put(yBottom).flip();
glClipPlane(GL_CLIP_PLANE1, doubleBuffer);
glEnable(GL_CLIP_PLANE0);
glEnable(GL_CLIP_PLANE1);
}
@Override
public DoubleBuffer asNioDouble() {
if (wrappedBuffer == null) {
return DoubleBuffer.wrap(doubleData);
}
return wrappedBuffer.asDoubleBuffer();
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "order",
args = {})
public void testOrder() {
assertEquals(ByteOrder.nativeOrder(), buf.order());
}
private void assertContentLikeTestData1(
DoubleBuffer buf, int startIndex, double startValue, int length) {
double value = startValue;
for (int i = 0; i < length; i++) {
assertEquals(buf.get(startIndex + i), value, 0.01);
value = value + 1.0;
}
}
public float compute(
java.nio.DoubleBuffer coords, int stride, int count, float shrink, float shrinkClamp) {
assert coords.isDirect() : "Buffer must be allocated direct.";
{
return LinearMathJNI.btConvexHullComputer_compute__SWIG_1(
swigCPtr, this, coords, stride, count, shrink, shrinkClamp);
}
}
public void readFile(File file) {
try {
FileChannel channel = new FileInputStream(file).getChannel();
MappedByteBuffer bb = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
IntBuffer ib = bb.asIntBuffer();
_nx = ib.get();
_ny = ib.get();
_nz = ib.get();
bb.position(4 * ib.position());
DoubleBuffer db = bb.asDoubleBuffer();
if (_a == null || _a.length != _nx * _ny * _nz) _a = new double[_nx * _ny * _nz];
db.get(_a);
channel.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
private void init() throws IOException {
channel.read(byteBuffer);
intBuffer.position(0);
doubleBuffer.position(0);
byteBuffer.position(0);
positionInBytes = 0;
initialized = true;
}
@NotNull
public static IndexedCollection<Double> ofDouble(@NotNull ByteBuffer byteBuffer) {
int magic = byteBuffer.getInt();
if (magic != MAGIC) {
throw new IllegalArgumentException("bad magic number");
}
int version = byteBuffer.getInt();
if (version != VERSION) {
throw new IllegalArgumentException("bad version number");
}
int size = byteBuffer.getInt();
DoubleBuffer values = byteBuffer.asDoubleBuffer();
values.limit(size);
byteBuffer.position(byteBuffer.position() + size * Integer.BYTES);
return new DoubleBufferCollection(values.slice());
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Abstract method.",
method = "isReadOnly",
args = {})
public void testIsReadOnly() {
assertFalse(buf.isReadOnly());
}