Examples of java.awt.image.SinglePixelPackedSampleModel

java.awt.image.SinglePixelPackedSampleModel
This class represents pixel data packed such that the N samples which make up a single pixel are stored in a single data array element, and each data data array element holds samples for only one pixel. This class supports {@link DataBuffer#TYPE_BYTE TYPE_BYTE}, {@link DataBuffer#TYPE_USHORT TYPE_USHORT}, {@link DataBuffer#TYPE_INT TYPE_INT} data types.All data array elements reside in the first bank of a DataBuffer. Accessor methods are provided so that the image data can be manipulated directly. Scanline stride is the number of data array elements between a given sample and the corresponding sample in the same column of the next scanline. Bit masks are the masks required to extract the samples representing the bands of the pixel. Bit offsets are the offsets in bits into the data array element of the samples representing the bands of the pixel.
The following code illustrates extracting the bits of the sample representing band b for pixel x,y from DataBuffer data:
```
 int sample = data.getElem(y * scanlineStride + x); sample = (sample & bitMasks[b]) >>> bitOffsets[b]; 
```

  }


  public void testMethod3(TestHarness harness)
  {
    harness.checkPoint("(int, int, int, int, int, double[], DataBuffer)");     
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    double[] samples = new double[6];
    m.getSamples(1, 2, 2, 3, 1, samples, db);
    harness.check(Arrays.equals(samples, new double[] {0, 0, 0, 0, 0, 0}));
    m.setSamples(1, 2, 2, 3, 0, new double[] {1, 2, 3, 4 ,5 ,6}, db);
    m.getSamples(1, 2, 2, 3, 0, samples, db);
    harness.check(Arrays.equals(samples, new double[] {1, 2, 3, 4, 5, 6}));
    m.setSamples(1, 2, 2, 3, 1, new double[] {7, 8, 9, 10, 11, 12}, db);
    m.getSamples(1, 2, 2, 3, 1, samples, db);
    harness.check(Arrays.equals(samples, new double[] {7, 0, 1, 2, 3, 4}));
    m.setSamples(1, 2, 2, 3, 2, new double[] {13, 14, 15, 16, 17, 18}, db);
    m.getSamples(1, 2, 2, 3, 2, samples, db);
    harness.check(Arrays.equals(samples, new double[] {1, 2, 3, 0, 1, 2}));
    
    // try invalid band
    boolean pass = false;
    try
    {
      m.setSamples(1, 2, 2, 3, 3, samples, db);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      pass = true;
    }
    harness.check(pass);
    
    // try null sample data
    pass = false;
    try
    {
      m.setSamples(1, 2, 2, 3, 0, (double[]) null, db);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }
    harness.check(pass);


    // try null data buffer
    pass = false;
    try
    {
      m.getSamples(1, 2, 2, 3, 0, samples, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

View Full Code Here

  }


  private void testByte(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, DataBuffer(Byte))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 3, new int[] { 0xF0, 0x0F }
    );
    byte[] b = new byte[] { (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44, (byte) 0x55, (byte) 0x66 };
    DataBuffer db = new DataBufferByte(b, 6);  


    // set a value
    m1.setDataElements(0, 0, new byte[] { (byte) 0x77 }, db);
    m1.setDataElements(1, 0, new byte[] { (byte) 0x88 }, db);
    m1.setDataElements(0, 1, new byte[] { (byte) 0x99 }, db);
    m1.setDataElements(1, 1, new byte[] { (byte) 0xAA }, db);
    m1.setDataElements(0, 2, new byte[] { (byte) 0xBB }, db);
    m1.setDataElements(1, 2, new byte[] { (byte) 0xCC }, db);
    harness.check(db.getElem(0), 0x77);
    harness.check(db.getElem(1), 0x88);
    harness.check(db.getElem(2), 0x99);
    harness.check(db.getElem(3), 0xAA);
    harness.check(db.getElem(4), 0xBB);
    harness.check(db.getElem(5), 0xCC);
    
    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 2, 3, new int[] { 0xF0, 0x0F }
    );
    m2.setDataElements(0, 0, new byte[] { (byte) 0x11 }, db);
    m2.setDataElements(1, 0, new byte[] { (byte) 0x22 }, db);
    m2.setDataElements(0, 1, new byte[] { (byte) 0x33 }, db);
    m2.setDataElements(1, 1, new byte[] { (byte) 0x44 }, db);
    harness.check(db.getElem(0), 0x11);
    harness.check(db.getElem(1), 0x22);
    harness.check(db.getElem(3), 0x33);
    harness.check(db.getElem(4), 0x44);

View Full Code Here

  }
  
  private void testUShort(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, DataBuffer(UShort))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_USHORT, 2, 3, new int[] { 0xFF00, 0x00FF }
    );
    short[] s = new short[] { (short) 0x1111, (short) 0x2222, (short) 0x3333, (short) 0x4444, (short) 0x5555, (short) 0x6666 };
    DataBuffer db = new DataBufferUShort(s, 6);  


    // set a value
    m1.setDataElements(0, 0, new short[] { (short) 0x7777 }, db);
    m1.setDataElements(1, 0, new short[] { (short) 0x8888 }, db);
    m1.setDataElements(0, 1, new short[] { (short) 0x9999 }, db);
    m1.setDataElements(1, 1, new short[] { (short) 0xAAAA }, db);
    m1.setDataElements(0, 2, new short[] { (short) 0xBBBB }, db);
    m1.setDataElements(1, 2, new short[] { (short) 0xCCCC }, db);
    harness.check(db.getElem(0), 0x7777);
    harness.check(db.getElem(1), 0x8888);
    harness.check(db.getElem(2), 0x9999);
    harness.check(db.getElem(3), 0xAAAA);
    harness.check(db.getElem(4), 0xBBBB);
    harness.check(db.getElem(5), 0xCCCC);
      
    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_USHORT, 2, 2, 3, new int[] { 0xFF00, 0x00FF }
    );
    m2.setDataElements(0, 0, new short[] { (short) 0x1111 }, db);
    m2.setDataElements(1, 0, new short[] { (short) 0x2222 }, db);
    m2.setDataElements(0, 1, new short[] { (short) 0x3333 }, db);
    m2.setDataElements(1, 1, new short[] { (short) 0x4444 }, db);
    harness.check(db.getElem(0), 0x1111);
    harness.check(db.getElem(1), 0x2222);
    harness.check(db.getElem(3), 0x3333);
    harness.check(db.getElem(4), 0x4444);

View Full Code Here

  }


  private void testInt(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, DataBuffer(Int))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_INT, 2, 3, new int[] { 0xFFFF00, 0x00FFFF }
    );
    int[] i = new int[] { (int) 0x11111111, (int) 0x22222222, (int) 0x33333333, (int) 0x44444444, (int) 0x55555555, (int) 0x66666666 };
    DataBuffer db = new DataBufferInt(i, 6);  


    // set a value
    m1.setDataElements(0, 0, new int[] { (int) 0x77777777 }, db);
    m1.setDataElements(1, 0, new int[] { (int) 0x88888888 }, db);
    m1.setDataElements(0, 1, new int[] { (int) 0x99999999 }, db);
    m1.setDataElements(1, 1, new int[] { (int) 0xAAAAAAAA }, db);
    m1.setDataElements(0, 2, new int[] { (int) 0xBBBBBBBB }, db);
    m1.setDataElements(1, 2, new int[] { (int) 0xCCCCCCCC }, db);
    harness.check(db.getElem(0), 0x77777777);
    harness.check(db.getElem(1), 0x88888888);
    harness.check(db.getElem(2), 0x99999999);
    harness.check(db.getElem(3), 0xAAAAAAAA);
    harness.check(db.getElem(4), 0xBBBBBBBB);
    harness.check(db.getElem(5), 0xCCCCCCCC);
        
    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_INT, 2, 2, 3, new int[] { 0xFFFF00, 0x00FFFF }
    );
    m2.setDataElements(0, 0, new int[] { (int) 0x11111111 }, db);
    m2.setDataElements(1, 0, new int[] { (int) 0x22222222 }, db);
    m2.setDataElements(0, 1, new int[] { (int) 0x33333333 }, db);
    m2.setDataElements(1, 1, new int[] { (int) 0x44444444 }, db);
    harness.check(db.getElem(0), 0x11111111);
    harness.check(db.getElem(1), 0x22222222);
    harness.check(db.getElem(3), 0x33333333);
    harness.check(db.getElem(4), 0x44444444);

View Full Code Here

public class getSampleFloat implements Testlet
{
  public void test(TestHarness harness)
  {
    harness.checkPoint("(int, int, int, DataBuffer)");
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    harness.check(m.getSampleFloat(1, 2, 0, db), 0);
    harness.check(m.getSampleFloat(1, 2, 1, db), 0);
    harness.check(m.getSampleFloat(1, 2, 2, db), 0);
    m.setPixel(1, 2, new int[] {1, 2, 3}, db);
    harness.check(m.getSampleFloat(1, 2, 0, db), 1);
    harness.check(m.getSampleFloat(1, 2, 1, db), 2);
    harness.check(m.getSampleFloat(1, 2, 2, db), 3);
    
    // try band out of range
    boolean pass = false;
    try
    {
      m.getSampleFloat(1, 2, -1, db);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      pass = true;
    }
    harness.check(true);
    
    pass = false;
    try
    {
      m.getSampleFloat(1, 2, 3, db);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      pass = true;
    }
    harness.check(true);
    
    // try null data buffer
    pass = false;
    try
    {
      m.getSampleFloat(1, 2, 0, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

View Full Code Here

   * 
   * @param harness  the test harness (<code>null</code> not permitted).
   */
  public void test(TestHarness harness)      
  {
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 1, 2, new int[] { 224, 28, 3 }
    );
    harness.check(m1.getNumDataElements(), 1);
  }

View Full Code Here

  }


  public void testMethod3(TestHarness harness)
  {
    harness.checkPoint("(int, int, double[], DataBuffer)");     
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    double[] pixel = new double[3];
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new double[] {0, 0, 0}));
    m.setPixel(1, 2, new double[] {1, 2, 3}, db);
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new double[] {1, 2, 3}));
    
    // try null array
    boolean pass = true;
    try
    {
      m.setPixel(1, 2, (double[]) null, db);
    }
    catch (NullPointerException e)
    {
        pass = true;
    }
    harness.check(pass);
    
    // try null data buffer
    pass = false;
    try
    {
      m.setPixel(1, 2, pixel, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

View Full Code Here

public class getSample implements Testlet
{
  public void test(TestHarness harness)
  {
    harness.checkPoint("(int, int, int, DataBuffer)");
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    harness.check(m.getSample(1, 2, 0, db), 0);
    harness.check(m.getSample(1, 2, 1, db), 0);
    harness.check(m.getSample(1, 2, 2, db), 0);
    m.setPixel(1, 2, new int[] {1, 2, 3}, db);
    harness.check(m.getSample(1, 2, 0, db), 1);
    harness.check(m.getSample(1, 2, 1, db), 2);
    harness.check(m.getSample(1, 2, 2, db), 3);
    
    // try band out of range
    boolean pass = false;
    try
    {
      m.getSample(1, 2, -1, db);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      pass = true;
    }
    harness.check(true);
    
    pass = false;
    try
    {
      m.getSample(1, 2, 3, db);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      pass = true;
    }
    harness.check(true);
    
    // try null data buffer
    pass = false;
    try
    {
      m.getSample(1, 2, 0, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

View Full Code Here

  }


  private void testByte(TestHarness harness) 
  {
    harness.checkPoint("(int, int, int, int, DataBuffer(Byte))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 3, new int[] { 0xF0, 0x0F }
    );
    byte[] b = new byte[] { (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44, (byte) 0x55, (byte) 0x66 };
    DataBuffer db = new DataBufferByte(b, 6);  


    // set a value
    m1.setSample(0, 0, 1, 0x07, db);
    m1.setSample(1, 0, 1, 0x08, db);
    m1.setSample(0, 1, 1, 0x09, db);
    m1.setSample(1, 1, 1, 0x0A, db);
    m1.setSample(0, 2, 1, 0x0B, db);
    m1.setSample(1, 2, 1, 0x0C, db);
    harness.check(db.getElem(0), 0x17);
    harness.check(db.getElem(1), 0x28);
    harness.check(db.getElem(2), 0x39);
    harness.check(db.getElem(3), 0x4A);
    harness.check(db.getElem(4), 0x5B);
    harness.check(db.getElem(5), 0x6C);


    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 2, 3, new int[] { 0xF0, 0x0F }
    ); 
    m2.setSample(0, 0, 0, 0x04, db);
    m2.setSample(1, 0, 0, 0x03, db);
    m2.setSample(0, 1, 0, 0x02, db);
    m2.setSample(1, 1, 0, 0x01, db);
    m2.setSample(0, 0, 1, 0x01, db);
    m2.setSample(1, 0, 1, 0x02, db);
    m2.setSample(0, 1, 1, 0x03, db);
    m2.setSample(1, 1, 1, 0x04, db);
    harness.check(db.getElem(0), 0x41);
    harness.check(db.getElem(1), 0x32);
    harness.check(db.getElem(3), 0x23);
    harness.check(db.getElem(4), 0x14);

View Full Code Here

  }


  private void testUShort(TestHarness harness) 
  {
    harness.checkPoint("(int, int, int, int, DataBuffer(UShort))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_USHORT, 2, 3, new int[] { 0xFF00, 0x00FF }
    );
    short[] s = new short[] { (short) 0x1111, (short) 0x2222, (short) 0x3333, (short) 0x4444, (short) 0x5555, (short) 0x6666 };
    DataBuffer db = new DataBufferUShort(s, 6);  


    // set a value
    m1.setSample(0, 0, 0, 0x00CC, db);  
    m1.setSample(1, 0, 0, 0x00BB, db);
    m1.setSample(0, 1, 0, 0x00AA, db);
    m1.setSample(1, 1, 0, 0x0099, db);  
    m1.setSample(0, 2, 0, 0x0088, db);
    m1.setSample(1, 2, 0, 0x0077, db);
    m1.setSample(0, 0, 1, 0x0077, db);  
    m1.setSample(1, 0, 1, 0x0088, db);
    m1.setSample(0, 1, 1, 0x0099, db);
    m1.setSample(1, 1, 1, 0x00AA, db);  
    m1.setSample(0, 2, 1, 0x00BB, db);
    m1.setSample(1, 2, 1, 0x00CC, db);
    harness.check(db.getElem(0), 0xCC77);
    harness.check(db.getElem(1), 0xBB88);
    harness.check(db.getElem(2), 0xAA99);
    harness.check(db.getElem(3), 0x99AA);
    harness.check(db.getElem(4), 0x88BB);
    harness.check(db.getElem(5), 0x77CC);


    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_USHORT, 2, 2, 3, new int[] { 0xFF00, 0x00FF }
    );
    m2.setSample(0, 0, 0, 0x0044, db);
    m2.setSample(1, 0, 0, 0x0033, db);
    m2.setSample(0, 1, 0, 0x0022, db);
    m2.setSample(1, 1, 0, 0x0011, db);
    m2.setSample(0, 0, 1, 0x0011, db);
    m2.setSample(1, 0, 1, 0x0022, db);
    m2.setSample(0, 1, 1, 0x0033, db);
    m2.setSample(1, 1, 1, 0x0044, db);
    harness.check(db.getElem(0), 0x4411);
    harness.check(db.getElem(1), 0x3322);
    harness.check(db.getElem(3), 0x2233);
    harness.check(db.getElem(4), 0x1144);

View Full Code Here

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