Example #1
0
  @Test
  public void subBufferTest02FloatBuffer() {

    out.println(" - - - subBufferTest - - - ");

    @SuppressWarnings("unchecked")
    final CLPlatform platform = CLPlatform.getDefault(version(CL_1_1));
    if (platform == null) {
      out.println("aborting subBufferTest");
      return;
    }

    final CLContext context = CLContext.create(platform);
    try {
      final int subelements = 5;
      final long lMaxAlignment = context.getMaxMemBaseAddrAlign();
      final int iMaxAlignment = Bitstream.uint32LongToInt(lMaxAlignment);
      System.err.println(
          "XXX: maxAlignment "
              + lMaxAlignment
              + ", 0x"
              + Long.toHexString(lMaxAlignment)
              + ", (int)"
              + iMaxAlignment
              + ", (int)0x"
              + Integer.toHexString(iMaxAlignment));
      if (-1 == iMaxAlignment) {
        throw new RuntimeException(
            "Cannot handle MaxMemBaseAddrAlign > MAX_INT, has 0x"
                + Long.toHexString(lMaxAlignment));
      }
      // FIXME: See Bug 979: Offset/Alignment via offset calculation per element-count is faulty!
      final int floatsPerAlignment = iMaxAlignment / Buffers.SIZEOF_FLOAT;
      // device + direct buffer
      final CLBuffer<FloatBuffer> buffer =
          context.createFloatBuffer(floatsPerAlignment + subelements);
      assertFalse(buffer.isSubBuffer());
      assertNotNull(buffer.getSubBuffers());
      assertTrue(buffer.getSubBuffers().isEmpty());

      final CLSubBuffer<FloatBuffer> subBuffer =
          buffer.createSubBuffer(floatsPerAlignment, subelements);

      assertTrue(subBuffer.isSubBuffer());
      assertEquals(subelements, subBuffer.getBuffer().capacity());
      assertEquals(floatsPerAlignment, subBuffer.getOffset());
      assertEquals(iMaxAlignment, subBuffer.getCLOffset());
      assertEquals(buffer, subBuffer.getParent());
      assertEquals(1, buffer.getSubBuffers().size());

      assertEquals(subBuffer.getCLCapacity(), subBuffer.getBuffer().capacity());

      subBuffer.release();
      assertEquals(0, buffer.getSubBuffers().size());

    } finally {
      context.release();
    }
  }
Example #2
0
  @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();
    }
  }