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]; 
```

            y1 = src.getMinY()+src.getHeight()-1;


        int width  = x1-x0+1;
        int height = y1-y0+1;


        SinglePixelPackedSampleModel srcSPPSM;
        srcSPPSM = (SinglePixelPackedSampleModel)src.getSampleModel();


        final int     srcScanStride = srcSPPSM.getScanlineStride();
        DataBufferInt srcDB         = (DataBufferInt)src.getDataBuffer();
        final int []  srcPixels     = srcDB.getBankData()[0];
        final int     srcBase =
            (srcDB.getOffset() +
             srcSPPSM.getOffset(x0-src.getSampleModelTranslateX(),
                                y0-src.getSampleModelTranslateY()));




        SinglePixelPackedSampleModel dstSPPSM;
        dstSPPSM = (SinglePixelPackedSampleModel)dst.getSampleModel();


        final int     dstScanStride = dstSPPSM.getScanlineStride();
        DataBufferInt dstDB         = (DataBufferInt)dst.getDataBuffer();
        final int []  dstPixels     = dstDB.getBankData()[0];
        final int     dstBase =
            (dstDB.getOffset() +
             dstSPPSM.getOffset(x0-dst.getSampleModelTranslateX(),
                                y0-dst.getSampleModelTranslateY()));


        if ((srcScanStride == dstScanStride) &&
            (srcScanStride == width)) {
            // System.out.println("VERY Fast copyData");

View Full Code Here

        if(!(sm instanceof SinglePixelPackedSampleModel)) return false;


        // Check transfer type
        if(sm.getDataType() != DataBuffer.TYPE_INT)       return false;


        SinglePixelPackedSampleModel sppsm;
        sppsm = (SinglePixelPackedSampleModel)sm;


        int [] masks = sppsm.getBitMasks();
        if (masks.length == 3) {
            if (requireAlpha) return false;
        } else if (masks.length != 4)
            return false;

View Full Code Here

        }


    protected static void divide_INT_PACK_Data(WritableRaster wr) {
        // System.out.println("Divide Int");


        SinglePixelPackedSampleModel sppsm;
        sppsm = (SinglePixelPackedSampleModel)wr.getSampleModel();


        final int width = wr.getWidth();


        final int scanStride = sppsm.getScanlineStride();
        DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
        final int base
            = (db.getOffset() +
               sppsm.getOffset(wr.getMinX()-wr.getSampleModelTranslateX(),
                               wr.getMinY()-wr.getSampleModelTranslateY()));


        // Access the pixel data array
        final int[] pixels = db.getBankData()[0];
        for (int y=0; y<wr.getHeight(); y++) {

View Full Code Here

    }


    protected static void mult_INT_PACK_Data(WritableRaster wr) {
        // System.out.println("Multiply Int: " + wr);


        SinglePixelPackedSampleModel sppsm;
        sppsm = (SinglePixelPackedSampleModel)wr.getSampleModel();


        final int width = wr.getWidth();


        final int scanStride = sppsm.getScanlineStride();
        DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
        final int base
            = (db.getOffset() +
               sppsm.getOffset(wr.getMinX()-wr.getSampleModelTranslateX(),
                               wr.getMinY()-wr.getSampleModelTranslateY()));
        // Access the pixel data array
        final int[] pixels = db.getBankData()[0];
        for (int y=0; y<wr.getHeight(); y++) {
            int sp = base + y*scanStride;

View Full Code Here

        this.sImage = image;
        final Raster raster = image.getRaster();
        final DataBuffer dataBuffer = raster.getDataBuffer();
        final SampleModel sampleModel = raster.getSampleModel();
        if (sampleModel instanceof SinglePixelPackedSampleModel) {
            final SinglePixelPackedSampleModel sppSM = (SinglePixelPackedSampleModel) sampleModel;
            final int dataType = dataBuffer.getDataType();
            final int dataTypeSize = DataBuffer.getDataTypeSize(dataType);
            this.bitmapGraphics = BitmapGraphics.createInstance(dataBuffer, width, height,
                sppSM.getScanlineStride() * dataTypeSize / 8, model.getTransparency());
        } else {
            this.bitmapGraphics = null;
        }
    }

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                 (KEY_FORCE_TRANSPARENT_WHITE)).booleanValue();
        }


        int w = img.getWidth();
        int h = img.getHeight();
        SinglePixelPackedSampleModel sppsm;
        sppsm = (SinglePixelPackedSampleModel)img.getSampleModel();


        if (forceTransparentWhite) {
            //
            // This is a trick so that viewers which do not support
            // the alpha channel will see a white background (and not
            // a black one).
            //
            DataBufferInt biDB=(DataBufferInt)img.getRaster().getDataBuffer();
            int scanStride = sppsm.getScanlineStride();
            int dbOffset = biDB.getOffset();
            int pixels[] = biDB.getBankData()[0];
            int p = dbOffset;
            int adjust = scanStride - w;
            int a=0, r=0, g=0, b=0, pel=0;
            for(int i=0; i<h; i++){
                for(int j=0; j<w; j++){
                    pel = pixels[p];
                    a = (pel >> 24) & 0xff;
                    r = (pel >> 16) & 0xff;
                    g = (pel >> 8 ) & 0xff;
                    b =  pel        & 0xff;
                    r = (255*(255 -a) + a*r)/255;
                    g = (255*(255 -a) + a*g)/255;
                    b = (255*(255 -a) + a*b)/255;
                    pixels[p++] =
                        (a<<24 & 0xff000000) |
                        (r<<16 & 0xff0000) |
                        (g<<8  & 0xff00) |
                        (b     & 0xff);
                }
                p += adjust;
            }
        }


        try {
            TIFFImageEncoder tiffEncoder = 
                new TIFFImageEncoder(ostream, params);
            int bands = sppsm.getNumBands();
            int [] off = new int[bands];
            for (int i=0; i<bands; i++)
                off[i] = i;
            SampleModel sm = new PixelInterleavedSampleModel
                (DataBuffer.TYPE_BYTE, w, h, bands, w*bands, off);

View Full Code Here

        if(cm instanceof DirectColorModel){
            cmType = DCM;
            DirectColorModel dcm = (DirectColorModel) cm;
            masks = dcm.getMasks();
            smType = SPPSM;
            SinglePixelPackedSampleModel sppsm = (SinglePixelPackedSampleModel) sm;
            scanlineStride = sppsm.getScanlineStride();


        }else if(cm instanceof IndexColorModel){
            cmType = ICM;
            IndexColorModel icm = (IndexColorModel) cm;
            colorMapSize = icm.getMapSize();

View Full Code Here

                 (KEY_FORCE_TRANSPARENT_WHITE)).booleanValue();
        }


        int w = img.getWidth();
        int h = img.getHeight();
        SinglePixelPackedSampleModel sppsm;
        sppsm = (SinglePixelPackedSampleModel)img.getSampleModel();


        if (forceTransparentWhite) {
            //
            // This is a trick so that viewers which do not support
            // the alpha channel will see a white background (and not
            // a black one).
            //
            DataBufferInt biDB=(DataBufferInt)img.getRaster().getDataBuffer();
            int scanStride = sppsm.getScanlineStride();
            int dbOffset = biDB.getOffset();
            int pixels[] = biDB.getBankData()[0];
            int p = dbOffset;
            int adjust = scanStride - w;
            int a=0, r=0, g=0, b=0, pel=0;
            for(int i=0; i<h; i++){
                for(int j=0; j<w; j++){
                    pel = pixels[p];
                    a = (pel >> 24) & 0xff;
                    r = (pel >> 16) & 0xff;
                    g = (pel >> 8 ) & 0xff;
                    b =  pel        & 0xff;
                    r = (255*(255 -a) + a*r)/255;
                    g = (255*(255 -a) + a*g)/255;
                    b = (255*(255 -a) + a*b)/255;
                    pixels[p++] =
                        (a<<24 & 0xff000000) |
                        (r<<16 & 0xff0000) |
                        (g<<8  & 0xff00) |
                        (b     & 0xff);
                }
                p += adjust;
            }
        }


        try {
            TIFFImageEncoder tiffEncoder = 
                new TIFFImageEncoder(ostream, params);
            int bands = sppsm.getNumBands();
            int [] off = new int[bands];
            for (int i=0; i<bands; i++)
                off[i] = i;
            SampleModel sm = new PixelInterleavedSampleModel
                (DataBuffer.TYPE_BYTE, w, h, bands, w*bands, off);

View Full Code Here

  }
  
  public void testMethod2(TestHarness harness)
  {
    harness.checkPoint("(int, int, 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[18];
    m.getPixels(1, 2, 2, 3, pixel, db);
    harness.check(Arrays.equals(pixel, new float[] {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 float[] {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 float[] {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, (float[]) 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

  }


  private void testInt(TestHarness harness) 
  {
    harness.checkPoint("(int, int, Object, 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.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), 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.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), 0x00440011);
    harness.check(db.getElem(1), 0x00330022);
    harness.check(db.getElem(3), 0x00220033);
    harness.check(db.getElem(4), 0x00110044);

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