Method ImageBufferTest

Testing/Unit/Java/sitkImageTests.java:145–203

()

    }

  public static boolean ImageBufferTest()
    {
      long[] v = {2,3,4};
    VectorUInt32 idx = new VectorUInt32( v );

    int size = 7*8*9;
    short val = 42;

    Image image = new Image(7,8,9, PixelIDValueEnum.sitkUInt8);
    image.setPixelAsUInt8(idx, (short)99);

    // Low level method is not recommended, but has been useful when
    // interfacing with other low level C based libraries in Java
    long ptr = image.getBufferAsNativePointer();

    if (ptr == 0)
      {
        System.out.println("Null native buffer pointer");
        return false;
      }

    java.nio.Buffer b1 = image.getBufferAsBuffer();

    if (b1.capacity() != size)
      {
        System.out.println("Capacity is not as expected");
        return false;
      }

    if (!b1.isDirect())
      {
        System.out.println("Buffer is not direct");
        return false;
      }

    if (b1.isReadOnly())
      {
        System.out.println("Buffer is read-only");
        return false;
      }

    java.nio.ByteBuffer bb = (java.nio.ByteBuffer) b1;

    if (bb.get(0) != 0)
      {
        System.out.println("Expected 0 value");
        return false;
      }

    if (bb.get(2+7*3+7*8*4) != 99)
      {
        System.out.println("Expected 99 value");
        return false;
      }



    return true;