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]; 
```

  }


  private void testInt(TestHarness harness) 
  {
    harness.checkPoint("(int, int, int, int, DataBuffer(Int))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_INT, 2, 3, new int[] { 0xFFFF0000, 0x0000FFFF }
    );
    int[] i = new int[] { 0x1111, 0x2222, 0x3333, 0x4444, 0x5555, 0x6666 };
    DataBuffer db = new DataBufferInt(i, 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), 0x00CC0077);
    harness.check(db.getElem(1), 0x00BB0088);
    harness.check(db.getElem(2), 0x00AA0099);
    harness.check(db.getElem(3), 0x009900AA);
    harness.check(db.getElem(4), 0x008800BB);
    harness.check(db.getElem(5), 0x007700CC);
  
    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_INT, 2, 2, 3, new int[] { 0xFFFF0000, 0x0000FFFF }
    );
    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), 0x00440011);
    harness.check(db.getElem(1), 0x00330022);
    harness.check(db.getElem(3), 0x00220033);
    harness.check(db.getElem(4), 0x00110044);

View Full Code Here

  }
  
  private void testByte(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, DataBuffer(Byte))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 2, new int[] { 224, 28, 3 }
    );
    byte[] b = new byte[] { (byte) 11, (byte) 22, (byte) 33, (byte) 44 };
    DataBuffer db = new DataBufferByte(b, 4);  
    
    byte[] de = (byte[]) m1.getDataElements(1, 1, null, db);
    harness.check(de.length, 1);                    // check 1
    harness.check(de[0], (byte) 44);                // check 2
    
    // check for coordinates out of bounds
    try                                             // check 3
    {
      m1.getDataElements(2, 2, null, db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }
    
    // check for return object of wrong dimension
    try                                             // check 4
    {
      m1.getDataElements(1, 1, new byte[0], db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }


    // check for return object of wrong type
    try                                            // check 5
    {
      m1.getDataElements(1, 1, new int[1], db);
      harness.check(false);
    }
    catch (ClassCastException e)
    {
      harness.check(true);
    }


    // check for null data buffer
    try                                            // check 6
    {
      m1.getDataElements(0, 0, null, null);
      harness.check(false);
    }
    catch (NullPointerException e)
    {
      harness.check(true);

View Full Code Here

  }
   
  private void testUShort(TestHarness harness) 
  {
    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);
    
    // check for coordinates out of bounds
    try
    {
      m1.getDataElements(2, 2, null, db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }


    // check for return object of wrong dimension
    try
    {
      m1.getDataElements(1, 1, new short[0], db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }


    // check for return object of wrong type
    try
    {
      m1.getDataElements(1, 1, new int[1], db);
      harness.check(false);
    }
    catch (ClassCastException e)
    {
      harness.check(true);
    }


    // check for null data buffer
    try
    {
      m1.getDataElements(0, 0, null, null);
      harness.check(false);
    }
    catch (NullPointerException e)
    {
      harness.check(true);

View Full Code Here

  }
  
  private void testInt(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, DataBuffer(Int))");
    SinglePixelPackedSampleModel m1 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_INT, 2, 2, new int[] { 224, 28, 3 }
    );
    int[] i = new int[] { 11, 22, 33, 44 };
    DataBuffer db = new DataBufferInt(i, 4);  
      
    int[] de = (int[]) m1.getDataElements(1, 1, null, db);
    harness.check(de.length, 1);
    harness.check(de[0], 44);
      
    // check for coordinates out of bounds
    try
    {
      m1.getDataElements(2, 2, null, db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }


    // check for return object of wrong dimension
    try
    {
      m1.getDataElements(1, 1, new int[0], db);
      harness.check(false);
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
      harness.check(true);
    }


    // check for return object of wrong type
    try
    {
      m1.getDataElements(1, 1, new byte[1], db);
      harness.check(false);
    }
    catch (ClassCastException e)
    {
      harness.check(true);
    }


    // check for null data buffer
    try
    {
      m1.getDataElements(0, 0, null, null);
      harness.check(false);
    }
    catch (NullPointerException e)
    {
      harness.check(true);

View Full Code Here

  }
  
  public void testMethod1(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();
    int[] pixel = new int[3];
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new int[] {0, 0, 0}));
    m.setPixel(1, 2, new int[] {1, 2, 3}, db);
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new int[] {1, 2, 3}));
    
    // if the incoming array is null, a new one is created
    pixel = m.getPixel(1, 2, (int[]) null, db);
    harness.check(Arrays.equals(pixel, new int[] {1, 2, 3}));
    
    // try null data buffer
    boolean pass = false;
    try
    {
      m.getPixel(1, 2, pixel, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }
    harness.check(pass);
    
    // try with a MultiPixelPackedSampleModel
    m = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 20, 2);
    db = m.createDataBuffer();
    db.setElem(0, 27);
    harness.check(m.getPixel(0, 0, (int[]) null, db)[0], 0);
    harness.check(m.getPixel(1, 0, (int[]) null, db)[0], 1);
    harness.check(m.getPixel(2, 0, (int[]) null, db)[0], 2);
    harness.check(m.getPixel(3, 0, (int[]) null, db)[0], 3);
    db.setElem(3, 27);
    harness.check(m.getPixel(0, 1, (int[]) null, db)[0], 0);
    harness.check(m.getPixel(1, 1, (int[]) null, db)[0], 1);
    harness.check(m.getPixel(2, 1, (int[]) null, db)[0], 2);
    harness.check(m.getPixel(3, 1, (int[]) null, db)[0], 3);
    db.setElem(6, 0x18);
    db.setElem(9, 0x30);
    db.setElem(12, 0x1C);
    harness.check(m.getPixel(1, 2, (int[]) null, db)[0], 1);
    harness.check(m.getPixel(2, 2, (int[]) null, db)[0], 2);
    harness.check(m.getPixel(1, 3, (int[]) null, db)[0], 3);
    harness.check(m.getPixel(2, 3, (int[]) null, db)[0], 0);
    harness.check(m.getPixel(1, 4, (int[]) null, db)[0], 1);
    harness.check(m.getPixel(2, 4, (int[]) null, db)[0], 3);
  }

View Full Code Here

  }
  
  public void testMethod2(TestHarness harness)
  {
    harness.checkPoint("(int, int, float[], DataBuffer)");     
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    float[] pixel = new float[3];
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new float[] {0, 0, 0}));
    m.setPixel(1, 2, new int[] {1, 2, 3}, db);
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new float[] {1, 2, 3}));
    
    // if the incoming array is null, a new one is created
    pixel = m.getPixel(1, 2, (float[]) null, db);
    harness.check(Arrays.equals(pixel, new float[] {1, 2, 3}));
    
    // try null data buffer
    boolean pass = false;
    try
    {
      m.getPixel(1, 2, pixel, null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

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 int[] {1, 2, 3}, db);
    m.getPixel(1, 2, pixel, db);
    harness.check(Arrays.equals(pixel, new double[] {1, 2, 3}));
    
    // if the incoming array is null, a new one is created
    pixel = m.getPixel(1, 2, (double[]) null, db);
    harness.check(Arrays.equals(pixel, new double[] {1, 2, 3}));
    
    // try null data buffer
    boolean pass = false;
    try
    {
      m.getPixel(1, 2, pixel, 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.setPixel(0, 0, new int[] { 0x0C, 0x07 }, db);
    m1.setPixel(1, 0, new int[] { 0x0B, 0x08 }, db);
    m1.setPixel(0, 1, new int[] { 0x0A, 0x09 }, db);
    m1.setPixel(1, 1, new int[] { 0x09, 0x0A }, db);
    m1.setPixel(0, 2, new int[] { 0x08, 0x0B }, db);
    m1.setPixel(1, 2, new int[] { 0x07, 0x0C }, db);
    harness.check(db.getElem(0), 0xC7);
    harness.check(db.getElem(1), 0xB8);
    harness.check(db.getElem(2), 0xA9);
    harness.check(db.getElem(3), 0x9A);
    harness.check(db.getElem(4), 0x8B);
    harness.check(db.getElem(5), 0x7C);
 
    // set a value with non-standard scanline stride 
    SinglePixelPackedSampleModel m2 = new SinglePixelPackedSampleModel(
      DataBuffer.TYPE_BYTE, 2, 2, 3, new int[] { 0xF0, 0x0F }
    );
    m2.setPixel(0, 0, new int[] { 0x04, 0x01 }, db);
    m2.setPixel(1, 0, new int[] { 0x03, 0x02 }, db);
    m2.setPixel(0, 1, new int[] { 0x02, 0x03 }, db);
    m2.setPixel(1, 1, new int[] { 0x01, 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, 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.setPixel(0, 0, new int[] { 0x00CC, 0x0077 }, db);
    m1.setPixel(1, 0, new int[] { 0x00BB, 0x0088 }, db);
    m1.setPixel(0, 1, new int[] { 0x00AA, 0x0099 }, db);
    m1.setPixel(1, 1, new int[] { 0x0099, 0x00AA }, db);
    m1.setPixel(0, 2, new int[] { 0x0088, 0x00BB }, db);
    m1.setPixel(1, 2, new int[] { 0x0077, 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.setPixel(0, 0, new int[] { 0x0044, 0x0011 }, db);
    m2.setPixel(1, 0, new int[] { 0x0033, 0x0022 }, db);
    m2.setPixel(0, 1, new int[] { 0x0022, 0x0033 }, db);
    m2.setPixel(1, 1, new int[] { 0x0011, 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

  }
  
  public void testMethod1(TestHarness harness)
  {
    harness.checkPoint("(int, int, int, int, int[], DataBuffer)");
    SampleModel m = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE, 10, 
            20, new int[] { 224, 28, 3 });
    DataBuffer db = m.createDataBuffer();
    int[] pixel = new int[18];
    m.getPixels(1, 2, 2, 3, pixel, db);
    harness.check(Arrays.equals(pixel, new int[] {0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
            0, 0, 0, 0, 0, 0, 0, 0}));
    m.setPixels(1, 2, 2, 3, new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 
            13, 14, 15, 16, 17, 18}, db);
    m.getPixels(1, 2, 2, 3, pixel, db);
    harness.check(Arrays.equals(pixel, new int[] {1, 2, 3, 4, 5, 2, 7, 0, 1, 
            2, 3, 0, 5, 6, 3, 0, 1, 2}));
    
    // try null pixel data
    boolean pass = false;
    try
    {
      m.setPixels(1, 2, 2, 3, (int[]) null, db);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }
    harness.check(pass);


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

View Full Code Here

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