Examples of java.awt.image.DataBuffer

java.awt.image.DataBuffer
This class exists to wrap one or more data arrays. Each data array in the DataBuffer is referred to as a bank. Accessor methods for getting and setting elements of the DataBuffer's banks exist with and without a bank specifier. The methods without a bank specifier use the default 0th bank. The DataBuffer can optionally take an offset per bank, so that data in an existing array can be used even if the interesting data doesn't start at array location zero. Getting or setting the 0th element of a bank, uses the (0+offset)th element of the array. The size field specifies how much of the data array is available for use. Size + offset for a given bank should never be greater than the length of the associated data array. The data type of a data buffer indicates the type of the data array(s) and may also indicate additional semantics, e.g. storing unsigned 8-bit data in elements of a byte array. The data type may be TYPE_UNDEFINED or one of the types defined below. Other types may be added in the future. Generally, an object of class DataBuffer will be cast down to one of its data type specific subclasses to access data type specific methods for improved performance. Currently, the Java 2D(tm) API image classes use TYPE_BYTE, TYPE_USHORT, TYPE_INT, TYPE_SHORT, TYPE_FLOAT, and TYPE_DOUBLE DataBuffers to store image data. @see java.awt.image.Raster @see java.awt.image.SampleModel

            raster = null;
            return;
        }


        // Restore the DataBuffer from its serialized form.
        DataBuffer dataBuffer = (DataBuffer)dataBufferState.getObject();


        // Reconstruct the Raster.
        raster = Raster.createRaster(sampleModel, dataBuffer, location);
    }

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        }


  if (checkDataBuffer) {
      Raster ras = source.getTile(source.getMinTileX(), source.getMinTileY());
      if (ras != null) {
    DataBuffer db = ras.getDataBuffer();
    if (db != null &&
        SerializerFactory.getSerializer(db.getClass()) == null)
        throw new IllegalArgumentException(JaiI18N.getString("SerializableRenderedImage4"));
      }
  }


        // Set server flag.

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        }
    }


    public Raster computeTile(int tileX, int tileY) {
        if(getTileWidth() == getWidth() && getTileHeight() == getHeight()) {
            DataBuffer dataBuffer = new DataBufferInt(pixels, pixels.length);
            return Raster.createWritableRaster(getSampleModel(),
                                               dataBuffer,
                                               new Point(tileXToX(tileX),
                                                         tileYToY(tileY)));
        }

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    /*
     * Create a Raster from the data of an uncompressed tile.
     */
    private Raster getUncompressedTile(int tx, int ty, byte[] data) {
        DataBuffer dataBuffer = new DataBufferByte(data, data.length);


        return Raster.createRaster(sampleModel, dataBuffer, new Point(tx, ty));
    }

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                data[i++] = B;
                data[i++] = A;
            }
        }


        DataBuffer dataBuffer = new DataBufferByte(data, data.length);


        return Raster.createRaster(sampleModel, dataBuffer, new Point(tx, ty));
    }

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     * Creates a <code>DataBuffer</code> that corresponds to this <code>ComponentSampleModel</code>.
     * The <code>DataBuffer</code>'s data type, number of banks, and size
     * will be consistent with this <code>ComponentSampleModel</code>.
     */
    public DataBuffer createDataBuffer() {
        DataBuffer dataBuffer = null;


        int size = (int)getBufferSize();
        switch (dataType) {
        case DataBuffer.TYPE_BYTE:
            dataBuffer = new DataBufferByte(size, numBanks);

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        ComponentSampleModel sm = (ComponentSampleModel)raster.getSampleModel();


        if (type == sampleType) {
            // Data are stored in the requested array type; no need to copy.


            DataBuffer db = raster.getDataBuffer();
            int[] bankIndices = sm.getBankIndices();


            switch (sampleType) {
            case DataBuffer.TYPE_BYTE:
                byte[][] bbd = ((DataBufferByte)db).getBankData();
                byte[][] bd = new byte[numBands][];


                for (int b = 0; b < numBands; b++) {
                    bd[b] = bbd[bankIndices[b]];
                }
                data = bd;
                break;


            case DataBuffer.TYPE_USHORT:
            case DataBuffer.TYPE_SHORT:
                short[][] sbd = sampleType == DataBuffer.TYPE_USHORT ?
                                ((DataBufferUShort)db).getBankData() :
                                ((DataBufferShort)db).getBankData();
                short[][] sd = new short[numBands][];


                for (int b = 0; b < numBands; b++) {
                    sd[b] = sbd[bankIndices[b]];
                }
                data = sd;
                break;


            case DataBuffer.TYPE_INT:
                int[][] ibd = ((DataBufferInt)db).getBankData();
                int[][] id = new int[numBands][];


                for (int b = 0; b < numBands; b++) {
                    id[b] = ibd[bankIndices[b]];
                }
                data = id;
                break;


            case DataBuffer.TYPE_FLOAT:
                float[][] fbd = DataBufferUtils.getBankDataFloat(db);
                float[][] fd = new float[numBands][];


                for (int b = 0; b < numBands; b++) {
                    fd[b] = fbd[bankIndices[b]];
                }
                data = fd;
                break;


            case DataBuffer.TYPE_DOUBLE:
                double[][] dbd = DataBufferUtils.getBankDataDouble(db);
                double[][] dd = new double[numBands][];


                for (int b = 0; b < numBands; b++) {
                    dd[b] = dbd[bankIndices[b]];
                }
                data = dd;
                break;
            }


            pixelStride = sm.getPixelStride();
            lineStride = sm.getScanlineStride();


            // Determine offsets.
            int[] dbOffsets = db.getOffsets();  // DataBuffer offsets
            int x = rect.x - raster.getSampleModelTranslateX();
            int y = rect.y - raster.getSampleModelTranslateY();


            offsets = new int[numBands];
            for (int b = 0; b < numBands; b++) {

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            } else {


                MultiPixelPackedSampleModel sm =
                    (MultiPixelPackedSampleModel)sampleModel;


                DataBuffer db = raster.getDataBuffer();
                int dbOffset = db.getOffset();


                int x = rect.x - raster.getSampleModelTranslateX();
                int y = rect.y - raster.getSampleModelTranslateY();


                int smLineStride = sm.getScanlineStride();

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                                              rect);
            } else {
                MultiPixelPackedSampleModel sm =
                    (MultiPixelPackedSampleModel)sampleModel;


                DataBuffer db = raster.getDataBuffer();
                int dbOffset = db.getOffset();


                int x = rect.x - raster.getSampleModelTranslateX();
                int y = rect.y - raster.getSampleModelTranslateY();


                int lineStride = sm.getScanlineStride();

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                                      scanlineStride,
                                      dataOffset,
                                      dbi.getData());
                break;
            case DataBuffer.TYPE_FLOAT:
                DataBuffer dbf = raster.getDataBuffer();
                mlimages = new mediaLibImage[1];
                mlimages[0] =
                    new mediaLibImage(Constants.MLIB_FLOAT,
                                      numBands,
                                      rect.width,
                                      rect.height,
                                      scanlineStride,
                                      dataOffset,
                                      DataBufferUtils.getDataFloat(dbf));
                break;
            case DataBuffer.TYPE_DOUBLE:
                DataBuffer dbd = raster.getDataBuffer();
                mlimages = new mediaLibImage[1];
                mlimages[0] =
                    new mediaLibImage(Constants.MLIB_DOUBLE,
                                      numBands,
                                      rect.width,

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