@Test
public void createBufferTest() {
out.println(" - - - highLevelTest; create buffer test - - - ");
final CLContext context = CLContext.create();
try {
final int size = 6;
final CLBuffer<ByteBuffer> bb = context.createByteBuffer(size);
final CLBuffer<ShortBuffer> sb = context.createShortBuffer(size);
final CLBuffer<IntBuffer> ib = context.createIntBuffer(size);
final CLBuffer<LongBuffer> lb = context.createLongBuffer(size);
final CLBuffer<FloatBuffer> fb = context.createFloatBuffer(size);
final CLBuffer<DoubleBuffer> db = context.createDoubleBuffer(size);
final List<CLMemory<? extends Buffer>> buffers = context.getMemoryObjects();
assertEquals(6, buffers.size());
assertEquals(1, bb.getElementSize());
assertEquals(2, sb.getElementSize());
assertEquals(4, ib.getElementSize());
assertEquals(8, lb.getElementSize());
assertEquals(4, fb.getElementSize());
assertEquals(8, db.getElementSize());
final ByteBuffer anotherNIO = newDirectByteBuffer(2);
for (final CLMemory<? extends Buffer> memory : buffers) {
final CLBuffer<? extends Buffer> buffer = (CLBuffer<? extends Buffer>) memory;
final Buffer nio = buffer.getBuffer();
assertEquals(nio.capacity(), buffer.getCLCapacity());
assertEquals(buffer.getNIOSize(), buffer.getCLSize());
assertEquals(sizeOfBufferElem(nio), buffer.getElementSize());
assertEquals(nio.capacity() * sizeOfBufferElem(nio), buffer.getCLSize());
final CLBuffer<ByteBuffer> clone = buffer.cloneWith(anotherNIO);
assertEquals(buffer.ID, clone.ID);
assertTrue(clone.equals(buffer));
assertTrue(buffer.equals(clone));
assertEquals(buffer.getCLSize(), clone.getCLCapacity());
assertEquals(buffer.getCLSize(), clone.getCLSize());
assertEquals(anotherNIO.capacity(), clone.getNIOCapacity());
}
} finally {
context.release();
}
}
@Test
public void cloneWithLimitedBufferTest() {
final int elements = NUM_ELEMENTS;
final int padding = 312; // Arbitrary number
final CLContext context = CLContext.create();
final IntBuffer hostBuffer =
ByteBuffer.allocateDirect((elements + padding) * SIZEOF_INT).asIntBuffer();
hostBuffer.limit(elements);
final CLBuffer<?> deviceBuffer =
context.createBuffer(elements * SIZEOF_INT).cloneWith(hostBuffer);
assertEquals(elements, deviceBuffer.getCLCapacity());
assertEquals(elements * SIZEOF_INT, deviceBuffer.getNIOSize());
assertEquals(elements, deviceBuffer.getNIOCapacity());
context.release();
}
@Test
public void createBufferFromLimitedBuffer() {
final int elements = NUM_ELEMENTS;
final int padding =
19 * SIZEOF_INT * 2; // Totally arbitrary number > 0 divisible by 2*SIZEOF_INT
final CLContext context = CLContext.create();
// Make a buffer that is offset relative to the originally allocated position and has a
// limit that is
// not equal to the capacity to test whether all these attributes are correctly handled.
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(elements * SIZEOF_INT + padding);
byteBuffer.position(padding / 2); // Offset the original buffer
IntBuffer intBuffer =
byteBuffer
.slice()
.order(ByteOrder.nativeOrder())
.asIntBuffer(); // Slice it to have a new buffer that starts at the offset
intBuffer.limit(elements);
final CLBuffer<IntBuffer> deviceBuffer = context.createBuffer(intBuffer);
assertEquals(elements, deviceBuffer.getCLCapacity());
assertEquals(elements * SIZEOF_INT, deviceBuffer.getNIOSize());
assertEquals(elements, deviceBuffer.getNIOCapacity());
}