Example usage for java.awt.image DataBufferByte DataBufferByte

Introduction

In this page you can find the example usage for java.awt.image DataBufferByte DataBufferByte.

Prototype

public DataBufferByte(int size) 

Source Link

Document

Constructs a byte-based DataBuffer with a single bank and the specified size.

Usage

From source file:it.geosolutions.imageio.plugins.nitronitf.ImageIOUtils.java

/**
 * Returns a generic banded WritableRaster
 * /*from w  w w .  ja  v a 2 s.  c  o  m*/
 * @param numElems
 * @param numLines
 * @param bandOffsets
 * @param dataType
 * @return
 */
public static WritableRaster makeGenericBandedWritableRaster(int numElems, int numLines, int numBands,
        int dataType) {
    int[] bandOffsets = new int[numBands];
    for (int i = 0; i < numBands; ++i)
        bandOffsets[i] = i;

    DataBuffer d = null;
    if (dataType == DataBuffer.TYPE_BYTE)
        d = new DataBufferByte(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_FLOAT)
        d = new DataBufferFloat(numElems * numLines * numBands);
    else
        throw new IllegalArgumentException("Invalid datatype: " + dataType);

    BandedSampleModel bsm = new BandedSampleModel(dataType, numElems, numLines, bandOffsets.length, bandOffsets,
            bandOffsets);

    SunWritableRaster ras = new SunWritableRaster(bsm, d, new Point(0, 0));
    return ras;
}

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From source file:it.geosolutions.imageio.plugins.nitronitf.ImageIOUtils.java

/**
 * Returns a generic pixel interleaved WritableRaster
 * /*  w ww. j  ava2s  . com*/
 * @param numElems
 * @param numLines
 * @param bandOffsets
 * @param dataType
 * @return
 */
public static WritableRaster makeGenericPixelInterleavedWritableRaster(int numElems, int numLines, int numBands,
        int dataType) {
    int[] bandOffsets = new int[numBands];
    for (int i = 0; i < numBands; ++i)
        bandOffsets[i] = i;

    DataBuffer d = null;
    if (dataType == DataBuffer.TYPE_BYTE)
        d = new DataBufferByte(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_SHORT)
        d = new DataBufferShort(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_USHORT)
        d = new DataBufferUShort(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_FLOAT)
        d = new DataBufferFloat(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_DOUBLE)
        d = new DataBufferDouble(numElems * numLines * numBands);
    else
        throw new IllegalArgumentException("Invalid datatype: " + dataType);

    PixelInterleavedSampleModel pism = new PixelInterleavedSampleModel(dataType, numElems, numLines,
            bandOffsets.length, numElems * bandOffsets.length, bandOffsets);

    SunWritableRaster ras = new SunWritableRaster(pism, d, new Point(0, 0));
    return ras;
}

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From source file:org.apache.xmlgraphics.image.codec.png.PNGImageDecoder.java

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

    DataBuffer dataBuffer;/*ww  w  . j av  a 2s.c o  m*/
    WritableRaster ras = null;
    final Point origin = new Point(0, 0);
    if (bitDepth < 8 && bands == 1) {
        dataBuffer = new DataBufferByte(height * scanlineStride);
        ras = Raster.createPackedRaster(dataBuffer, width, height, bitDepth, origin);
    } else if (bitDepth <= 8) {
        dataBuffer = new DataBufferByte(height * scanlineStride);
        ras = Raster.createInterleavedRaster(dataBuffer, width, height, scanlineStride, bands,
                this.bandOffsets[bands], origin);
    } else {
        dataBuffer = new DataBufferUShort(height * scanlineStride);
        ras = Raster.createInterleavedRaster(dataBuffer, width, height, scanlineStride, bands,
                this.bandOffsets[bands], origin);
    }

    return ras;
}

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