Examples of DataBufferUShort

ae.java.awt.image.DataBufferUShort
This class extends DataBuffer and stores data internally as shorts. Values stored in the short array(s) of this DataBuffer are treated as unsigned values.
Note that some implementations may function more efficiently if they can maintain control over how the data for an image is stored. For example, optimizations such as caching an image in video memory require that the implementation track all modifications to that data. Other implementations may operate better if they can store the data in locations other than a Java array. To maintain optimum compatibility with various optimizations it is best to avoid constructors and methods which expose the underlying storage as a Java array as noted below in the documentation for those methods.
com.google.code.appengine.awt.image.DataBufferUShort
java.awt.image.DataBufferUShort
This class extends DataBuffer and stores data internally as shorts. Values stored in the short array(s) of this DataBuffer are treated as unsigned values.

Examples of java.awt.image.DataBufferUShort

  }


  private void testConstructor5(TestHarness harness) 
  {
    harness.checkPoint("DataBufferUShort(short[], int, int)");
    DataBufferUShort b = new DataBufferUShort(new short[] {1, 2}, 2, 0);
    harness.check(b.getSize() == 2);
    harness.check(b.getNumBanks() == 1);
    harness.check(b.getOffset() == 0);


    // this constructor, unlike all the other DataBuffer classes, rejects
    // a null bank
    boolean pass = false;
    try 
    {
      DataBufferUShort b1 = new DataBufferUShort((short[]) null, 1, 0);
    }
    catch (NullPointerException e) 
    {
      pass = true;
    }
    harness.check(pass);


    // does negative size fail? no
    pass = true;
    try 
    {
      DataBuffer b1 = new DataBufferUShort(new short[] {1, 2}, -1, 0);
    }
    catch (NegativeArraySizeException e) 
    {
      pass = false;
    }

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Examples of java.awt.image.DataBufferUShort

  }


  private void testConstructor6(TestHarness harness) 
  {
    harness.checkPoint("DataBufferUShort(int, int)");
    DataBufferUShort b = new DataBufferUShort(2, 3);
    harness.check(b.getNumBanks() == 3);
    harness.check(b.getSize() == 2);
    harness.check(b.getOffset() == 0);


    // does negative size fail? yes
    boolean pass = false;
    try 
    {
      DataBufferUShort b1 = new DataBufferUShort(-1, 1);
    }
    catch (NegativeArraySizeException e) 
    {
      pass = true;
    } 
    harness.check(pass);


    // does negative banks fail? yes
    pass = false;
    try 
    {
      DataBufferUShort b1 = new DataBufferUShort(1, -1);
    }
    catch (NegativeArraySizeException e) 
    {
      pass = true;
    }

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Examples of java.awt.image.DataBufferUShort

  public void test(TestHarness h)
  {
    DataBuffer buf;
    short[] data = new short[] { -11, -22, -33, -44 };
    
    buf = new DataBufferUShort(new short[][] { data, data }, 2,
                               new int[] { 2, 0 });


    h.check(buf.getElem(0), 0x10000 - 33);    // Check #1.
    h.check(buf.getElem(1), 0x10000 - 44);    // Check #2.
    h.check(buf.getElem(0, 0), 0x10000 - 33); // Check #3.

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Examples of java.awt.image.DataBufferUShort

  {
    harness.checkPoint("getElem(int)");  
      
    // test where supplied array is bigger than 'size'
    short[] source = new short[] {1, 2, 3};
    DataBufferUShort b = new DataBufferUShort(source, 2);
    harness.check(b.getElem(0) == 1);
    harness.check(b.getElem(1) == 2);
    harness.check(b.getElem(2) == 3);
    
    boolean pass = false;
    try
    {
      b.getElem(-1);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
    
    pass = false;
    try
    {
      b.getElem(3);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
    
    // test where offsets are specified
    source = new short[] {1, 2, 3, 4};
    b = new DataBufferUShort(source, 2, 1);
    harness.check(b.getElem(-1) == 1);
    harness.check(b.getElem(0) == 2);
    harness.check(b.getElem(1) == 3);
    harness.check(b.getElem(2) == 4);


    pass = false;
    try
    {
      b.getElem(3);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);


    pass = false;
    try
    {
      b.getElem(-2);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }

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Examples of java.awt.image.DataBufferUShort


  private void testGetElem2(TestHarness harness) {
    harness.checkPoint("getElem(int, int)");  
    
    short[][] source = new short[][] {{1, 2}, {3, 4}};
    DataBufferUShort b = new DataBufferUShort(source, 2);
    harness.check(b.getElem(1, 0) == 3);
    harness.check(b.getElem(1, 1) == 4);
    
    // test where supplied array is bigger than 'size'
    source = new short[][] {{1, 2, 3}, {4, 5, 6}};
    b = new DataBufferUShort(source, 2);
    harness.check(b.getElem(1, 2) == 6);
      
    // test where offsets are specified
    source = new short[][] {{1, 2, 3, 4}, {5, 6, 7, 8}};
    b = new DataBufferUShort(source, 2, new int[] {1, 2});
    harness.check(b.getElem(1, -2) == 5);
    harness.check(b.getElem(1, -1) == 6);
    harness.check(b.getElem(1, 0) == 7);
    harness.check(b.getElem(1, 1) == 8);
       
    // does a change to the source affect the DataBuffer? Yes
    source[1][2] = 99;
    harness.check(source[1][2] == 99);
    harness.check(b.getElem(1, 0) == 99);
        
    // test when the bank index is out of bounds
    boolean pass = true;
    try
    {
      b.getElem(-1, 0);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
        
    pass = false;
    try 
    {
      b.getElem(2, 0);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
    
    // test when the item index is out of bounds
    pass = true;
    try
    {
      b.getElem(0, -2);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
        
    pass = false;
    try 
    {
      b.getElem(1, 5);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
    
    // the array of arrays should reflect the single dimension array
    DataBufferUShort b2 = new DataBufferUShort(new short[] {1, 2, 3}, 3);
    harness.check(b2.getElem(0, 1) == 2);
  }

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Examples of java.awt.image.DataBufferUShort

  private void testGetData1(TestHarness harness) {
    harness.checkPoint("getData()");  


    // check simple case
    short[] source = new short[] {1, 2};
    DataBufferUShort b = new DataBufferUShort(source, 2);
    short[] data = b.getData();
    harness.check(data.length == 2);
    harness.check(data[0] == 1);
    harness.check(data[1] == 2);


    // test where supplied array is bigger than 'size'
    source = new short[] {1, 2, 3};
    b = new DataBufferUShort(source, 2);
    data = b.getData();
    harness.check(data.length == 3);
    harness.check(data[0] == 1);
    harness.check(data[1] == 2);
    harness.check(data[2] == 3);


    // test where offsets are specified
    source = new short[] {1, 2, 3, 4};
    b = new DataBufferUShort(source, 2, 1);
    data = b.getData();
    harness.check(data.length == 4);
    harness.check(data[0] == 1);
    harness.check(data[1] == 2);
    harness.check(data[2] == 3);
    harness.check(data[3] == 4);

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Examples of java.awt.image.DataBufferUShort


  private void testGetData2(TestHarness harness) {
    harness.checkPoint("getData(int)");  
  
    short[][] source = new short[][] {{1, 2}, {3, 4}};
    DataBufferUShort b = new DataBufferUShort(source, 2);
    short[] data = b.getData(1);
    harness.check(data.length == 2);
    harness.check(data[0] == 3);
    harness.check(data[1] == 4);
  
    // test where supplied array is bigger than 'size'
    source = new short[][] {{1, 2, 3}, {4, 5, 6}};
    b = new DataBufferUShort(source, 2);
    data = b.getData(1);
    harness.check(data.length == 3);
    harness.check(data[0] == 4);
    harness.check(data[1] == 5);
    harness.check(data[2] == 6);


    // test where offsets are specified
    source = new short[][] {{1, 2, 3, 4}, {5, 6, 7, 8}};
    b = new DataBufferUShort(source, 2, new int[] {1, 2});
    data = b.getData(1);
    harness.check(data.length == 4);
    harness.check(data[0] == 5);
    harness.check(data[1] == 6);
    harness.check(data[2] == 7);
    harness.check(data[3] == 8);
  
    // does a change to the source affect the DataBuffer? Yes
    source[1][2] = 99;
    harness.check(data[2] == 99);
  
    // check bounds exceptions
    boolean pass = true;
    try
    {
      b.getData(-1);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);
  
    pass = false;
    try 
    {
      b.getData(2);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }

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Examples of java.awt.image.DataBufferUShort

  implements Testlet
{
  public void test(TestHarness h)
  {
    // Check #1.
    h.check(new DataBufferUShort(5).getDataType(), DataBuffer.TYPE_USHORT);
  }

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Examples of java.awt.image.DataBufferUShort

    harness.checkPoint("(int, int, Object, DataBuffer(UShort))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_USHORT, 2, 2, new int[] { 224, 28, 3 }
    );
    short[] s = new short[] { (short) 11, (short) 22, (short) 33, (short) 44 };
    DataBuffer db = new DataBufferUShort(s, 4);  
    
    short[] de = (short[]) m1.getDataElements(1, 1, null, db);
    harness.check(de.length, 1);
    harness.check(de[0], (byte) 44);

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Examples of java.awt.image.DataBufferUShort


  private void testSetElem1(TestHarness harness) {
    harness.checkPoint("setElem(int, int)");   


    short[] source = new short[] {1, 2};
    DataBufferUShort b = new DataBufferUShort(source, 2);
    b.setElem(1, 99);
    harness.check(b.getElem(1) == 99);


    // does the source array get updated? Yes
    harness.check(source[1] == 99);


    // test with offsets
    source = new short[] {1, 2, 3, 4, 5};
    b = new DataBufferUShort(source, 4, 1);
    harness.check(b.getElem(1) == 3);
    b.setElem(1, 99);
    harness.check(b.getElem(1) == 99); 
    harness.check(source[2] == 99);


    boolean pass = false;
    try
    {
      b.setElem(-2, 99);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }
    harness.check(pass);


    pass = false;
    try
    {
      b.setElem(4, 99);
    }
    catch (ArrayIndexOutOfBoundsException e) 
    {
      pass = true;
    }

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