Examples of WritableRaster

ae.java.awt.image.WritableRaster
This class extends Raster to provide pixel writing capabilities. Refer to the class comment for Raster for descriptions of how a Raster stores pixels.
The constructors of this class are protected. To instantiate a WritableRaster, use one of the createWritableRaster factory methods in the Raster class.
com.google.code.appengine.awt.image.WritableRaster
com.jgraph.gaeawt.java.awt.image.WritableRaster
java.awt.image.WritableRaster
This class extends Raster to provide pixel writing capabilities. Refer to the class comment for Raster for descriptions of how a Raster stores pixels.
The constructors of this class are protected. To instantiate a WritableRaster, use one of the createWritableRaster factory methods in the Raster class.

Examples of java.awt.image.WritableRaster

            destSM = destSM.createCompatibleSampleModel(region.width,
                                                        region.height);
        }


        // Translate it
        WritableRaster dest = createWritableRaster(destSM,
                                                   region.getLocation());


        copyExtendedData(dest, extender);
        return dest;
    }

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Examples of java.awt.image.WritableRaster

            return theTile;
        }


  // Create a new tile
  Point org = new Point(tileXToX(tileX), tileYToY(tileY));
  WritableRaster tile =
      RasterFactory.createWritableRaster(sampleModel, org);
  byte bdata[] = null; // buffer for byte data
  short sdata[] = null; // buffer for short data
  int idata[] = null; // buffer for int data


  if (sampleModel.getDataType() == DataBuffer.TYPE_BYTE)
      bdata = (byte[])((DataBufferByte)tile.getDataBuffer()).getData();
  else if (sampleModel.getDataType() == DataBuffer.TYPE_USHORT)
      sdata = (short[])((DataBufferUShort)tile.getDataBuffer()).getData();
  else if (sampleModel.getDataType() == DataBuffer.TYPE_INT)
      idata = (int[])((DataBufferInt)tile.getDataBuffer()).getData();


  // There should only be one tile.
  switch(imageType) {


  case VERSION_2_1_BIT:
      // no compression
      read1Bit(bdata, 3);
      break;


  case VERSION_2_4_BIT:
      // no compression
      read4Bit(bdata, 3);
      break;


  case VERSION_2_8_BIT:
      // no compression
      read8Bit(bdata, 3);
      break;


  case VERSION_2_24_BIT:
      // no compression
      read24Bit(bdata);
      break;


  case VERSION_3_1_BIT:
      // 1-bit images cannot be compressed.
      read1Bit(bdata, 4);
      break;


  case VERSION_3_4_BIT:
      switch((int)compression) {
      case BI_RGB:
    read4Bit(bdata, 4);
    break;


      case BI_RLE4:
    int pixels[] = readRLE4();
    tile.setPixels(0, 0, width, height, pixels);
    break;


      default:
    throw new
        RuntimeException(JaiI18N.getString("BMPImageDecoder3"));
      }
      break;


  case VERSION_3_8_BIT:
      switch((int)compression) {
      case BI_RGB:
    read8Bit(bdata, 4);
        break;


      case BI_RLE8:
    readRLE8(bdata);
    break;


      default:
    throw new
        RuntimeException(JaiI18N.getString("BMPImageDecoder3"));
      }


      break;


  case VERSION_3_24_BIT:
      // 24-bit images are not compressed
      read24Bit(bdata);
      break;


  case VERSION_3_NT_16_BIT:
      read16Bit(sdata);
      break;


  case VERSION_3_NT_32_BIT:
      read32Bit(idata);
      break;


  case VERSION_4_1_BIT:
      read1Bit(bdata, 4);
      break;


  case VERSION_4_4_BIT:
      switch((int)compression) {


      case BI_RGB:
    read4Bit(bdata, 4);
    break;


      case BI_RLE4:
    int pixels[] = readRLE4();
    tile.setPixels(0, 0, width, height, pixels);
    break;


      default:
    throw new
        RuntimeException(JaiI18N.getString("BMPImageDecoder3"));

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Examples of java.awt.image.WritableRaster

    private WritableRaster createRaster(int width, int height, int bands,
                                        int scanlineStride,
                                        int bitDepth) {


        DataBuffer dataBuffer;
        WritableRaster ras = null;
        Point origin = new Point(0, 0);
        if ((bitDepth < 8) && (bands == 1)) {
            dataBuffer = new DataBufferByte(height*scanlineStride);
            ras = Raster.createPackedRaster(dataBuffer,
                                            width, height,

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Examples of java.awt.image.WritableRaster

        int eltsPerRow = (bitDepth == 16) ? bytesPerRow/2 : bytesPerRow;
        byte[] curr = new byte[bytesPerRow];
        byte[] prior = new byte[bytesPerRow];


        // Create a 1-row tall Raster to hold the data
        WritableRaster passRow =
            createRaster(passWidth, 1, inputBands,
                         eltsPerRow,
                         bitDepth);
        DataBuffer dataBuffer = passRow.getDataBuffer();
        int type = dataBuffer.getDataType();
        byte[] byteData = null;
        short[] shortData = null;
        if (type == DataBuffer.TYPE_BYTE) {
            byteData = ((DataBufferByte)dataBuffer).getData();

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Examples of java.awt.image.WritableRaster

    public Raster computeTile(int tileX, int tileY) {
        /* The origin of the tile. */
        Point org = new Point(tileXToX(tileX), tileYToY(tileY));


        /* Create a new WritableRaster to represent this tile. */
        WritableRaster dest = createWritableRaster(sampleModel, org);


        /* Find the intersection between this tile and the writable bounds. */
        Rectangle rect = new Rectangle(org.x, org.y, tileWidth, tileHeight);
        Rectangle destRect = rect.intersection(computableBounds);
        Rectangle destRect1 = rect.intersection(getBounds());

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Examples of java.awt.image.WritableRaster

                // Create an interleaved raster for copying for 8-bit case.
                // This ensures that for RGB data the band offsets are {0,1,2}.
                // If the JPEG encoder encounters data with BGR offsets as
                // {2,1,0} then it will make yet another copy of the data
                // which might as well be averted here.
                WritableRaster target = sampleModel.getSampleSize(0) == 8 ?
                    Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
                                                   im.getWidth(),
                                                   im.getHeight(),
                                                   sampleModel.getNumBands(),
                                                   new Point(im.getMinX(),
                                                             im.getMinY())) :
                    null;


                // Copy the data.
                ras = im.copyData(target);
            }


            // Convert the Raster to a WritableRaster.
            WritableRaster wRas;
            if (ras instanceof WritableRaster) {
                wRas = (WritableRaster)ras;
            } else {
                wRas = Raster.createWritableRaster(ras.getSampleModel(),
                                                   ras.getDataBuffer(),
                                                   new Point(ras.getSampleModelTranslateX(),
                                                             ras.getSampleModelTranslateY()));
            }


            // Ensure that the WritableRaster has origin (0,0) and the
            // same dimensions as the image (if derived from a single
            // image tile, the tile dimensions might differ from the
            // image dimensions.
            if (wRas.getMinX() != 0 || wRas.getMinY() != 0 ||
                wRas.getWidth() != im.getWidth() ||
                wRas.getHeight() != im.getHeight())
                wRas = wRas.createWritableChild(wRas.getMinX(),
                                                wRas.getMinY(),
                                                im.getWidth(),
                                                im.getHeight(),
                                                0, 0,
                                                null);


            bi = new BufferedImage(colorModel, wRas, false, null);
        }


        if (colorModel instanceof IndexColorModel) {
            //
            // Need to expand the indexed data to components.
            // The convertToIntDiscrete method is used to perform this.
            //
            IndexColorModel icm = (IndexColorModel)colorModel;
            bi = icm.convertToIntDiscrete(bi.getRaster(), false);


            if(bi.getSampleModel().getNumBands() == 4) {
                //
                // Without copying data create a BufferedImage which has
                // only the RGB bands, not the alpha band.
                //
                WritableRaster rgbaRas = bi.getRaster();
                WritableRaster rgbRas =
                    rgbaRas.createWritableChild(0, 0,
                                                bi.getWidth(), bi.getHeight(),
                                                0, 0,
                                                new int[] {0, 1, 2});
                //

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Examples of java.awt.image.WritableRaster

    }


    private Raster computeTile(int tileX, int tileY) {
        // Create a new tile.
        Point org = new Point(tileXToX(tileX), tileYToY(tileY));
        WritableRaster tile = Raster.createWritableRaster(sampleModel, org);
        Rectangle tileRect = tile.getBounds();


        // There should only be one tile.
        try {
            switch (variant) {
            case PBM_ASCII:
            case PBM_RAW:
                // SampleModel for these cases should be MultiPixelPacked.


                DataBuffer dataBuffer = tile.getDataBuffer();
                if (isRaw(variant)) {
                    // Read the entire image.
                    byte[] buf = ((DataBufferByte)dataBuffer).getData();
                    input.readFully(buf, 0, buf.length);
                } else {
                    // Read 8 rows at a time
                    byte[] pixels = new byte[8*width];
                    int offset = 0;
                    for (int row = 0; row < tileHeight; row += 8) {
                        int rows = Math.min(8, tileHeight - row);
                        int len = (rows*width + 7)/8;


                        for (int i = 0; i < rows*width; i++) {
                            pixels[i] = (byte)readInteger(input);
                        }
                        sampleModel.setDataElements(tileRect.x,
                                                    row,
                                                    tileRect.width,
                                                    rows,
                                                    pixels,
                                                    dataBuffer);
                    }
                }
                break;


            case PGM_ASCII:
            case PGM_RAW:
            case PPM_ASCII:
            case PPM_RAW:
                // SampleModel for these cases should be PixelInterleaved.
                int size = width*height*numBands;


                switch (dataType) {
                case DataBuffer.TYPE_BYTE:
                    DataBufferByte bbuf =
                        (DataBufferByte)tile.getDataBuffer();
                    byte[] byteArray = bbuf.getData();
                    if (isRaw(variant)) {
                        input.readFully(byteArray);
                    } else {
                        for (int i = 0; i < size; i++) {
                            byteArray[i] = (byte)readInteger(input);
                        }
                    }
                    break;


                case DataBuffer.TYPE_USHORT:
                    DataBufferUShort sbuf =
                        (DataBufferUShort)tile.getDataBuffer();
                    short[] shortArray = sbuf.getData();
                    for (int i = 0; i < size; i++) {
                        shortArray[i] = (short)readInteger(input);
                    }
                    break;


                case DataBuffer.TYPE_INT:
                    DataBufferInt ibuf =
                        (DataBufferInt)tile.getDataBuffer();
                    int[] intArray = ibuf.getData();
                    for (int i = 0; i < size; i++) {
                        intArray[i] = readInteger(input);
                    }
                    break;

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Examples of java.awt.image.WritableRaster

           ((MultiPixelPackedSampleModel)sm).getDataBitOffset() != 0) {
            MultiPixelPackedSampleModel mppsm =
                new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
                                                width, height, 1,
                                                (width + 7)/8, 0);
            WritableRaster raster =
                Raster.createWritableRaster(mppsm,
                                            new Point(im.getMinX(),
                                                      im.getMinY()));
            raster.setRect(im.getData());
            tile = raster;
        } else if(im.getNumXTiles() == 1 &&
                  im.getNumYTiles() == 1) {
            tile = im.getTile(im.getMinTileX(), im.getMinTileY());
        } else {

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Examples of java.awt.image.WritableRaster

        BufferedImage bi = new BufferedImage(width,
                                             height,
                                             BufferedImage.TYPE_BYTE_BINARY);


        // Get the image tile.
        WritableRaster tile = bi.getWritableTile(0, 0);


        // Get the SampleModel.
        MultiPixelPackedSampleModel sm =
            (MultiPixelPackedSampleModel)bi.getSampleModel();


        // Read the data.
        input.readFully(((DataBufferByte)tile.getDataBuffer()).getData(),
                   0, height*sm.getScanlineStride());


        return bi;
    }

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Examples of java.awt.image.WritableRaster

    public Raster computeTile(int tileX, int tileY) {
        // The origin of the tile.
        Point org = new Point(tileXToX(tileX), tileYToY(tileY));


        // Create a new WritableRaster to represent this tile.
        WritableRaster dest = createWritableRaster(sampleModel, org);


        // Find the intersection between this tile and the writable bounds.
        Rectangle destRect = new Rectangle(org.x, org.y,
                  tileWidth, tileHeight).intersection(computableBounds);

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