FileDocCategorySizeDatePackage
PixelInterleavedSampleModel.javaAPI DocAndroid 1.5 API4388Wed May 06 22:41:54 BST 2009java.awt.image

PixelInterleavedSampleModel

public class PixelInterleavedSampleModel extends ComponentSampleModel
The PixelInterleavedSampleModel class represents image data as represented as interleaved pixels and for which each sample of a pixel takes one data element of the DataBuffer.
since
Android 1.0

Fields Summary
Constructors Summary
public PixelInterleavedSampleModel(int dataType, int w, int h, int pixelStride, int scanlineStride, int[] bandOffsets)
Instantiates a new PixelInterleavedSampleModel with the specified parameters.

param
dataType the data type of the samples.
param
w the width of the image data.
param
h the height of the image data.
param
pixelStride the pixel stride of the image data.
param
scanlineStride the scanline stride of the of the image data.
param
bandOffsets the array of the band offsets.


        super(dataType, w, h, pixelStride, scanlineStride, bandOffsets);

        int maxOffset = bandOffsets[0];
        int minOffset = bandOffsets[0];
        for (int i = 1; i < bandOffsets.length; i++) {
            if (bandOffsets[i] > maxOffset) {
                maxOffset = bandOffsets[i];
            }
            if (bandOffsets[i] < minOffset) {
                minOffset = bandOffsets[i];
            }
        }

        maxOffset -= minOffset;

        if (maxOffset > scanlineStride) {
            // awt.241=Any offset between bands is greater than the Scanline
            // stride
            throw new IllegalArgumentException(Messages.getString("awt.241")); //$NON-NLS-1$
        }

        if (maxOffset > pixelStride) {
            // awt.242=Pixel stride is less than any offset between bands
            throw new IllegalArgumentException(Messages.getString("awt.242")); //$NON-NLS-1$
        }

        if (pixelStride * w > scanlineStride) {
            // awt.243=Product of Pixel stride and w is greater than Scanline
            // stride
            throw new IllegalArgumentException(Messages.getString("awt.243")); //$NON-NLS-1$
        }
Methods Summary
public java.awt.image.SampleModelcreateCompatibleSampleModel(int w, int h)

        int newOffsets[];
        int minOffset = bandOffsets[0];

        for (int i = 1; i < numBands; i++) {
            if (bandOffsets[i] < minOffset) {
                minOffset = bandOffsets[i];
            }
        }

        if (minOffset > 0) {
            newOffsets = new int[numBands];
            for (int i = 0; i < numBands; i++) {
                newOffsets[i] = bandOffsets[i] - minOffset;
            }
        } else {
            newOffsets = bandOffsets;
        }

        return new PixelInterleavedSampleModel(dataType, w, h, pixelStride, pixelStride * w,
                newOffsets);
public java.awt.image.SampleModelcreateSubsetSampleModel(int[] bands)

        int newOffsets[] = new int[bands.length];
        for (int i = 0; i < bands.length; i++) {
            newOffsets[i] = bandOffsets[bands[i]];
        }

        return new PixelInterleavedSampleModel(dataType, width, height, pixelStride,
                scanlineStride, newOffsets);
public inthashCode()

        int hash = super.hashCode();
        int tmp = hash >>> 8;
        hash <<= 8;
        hash |= tmp;

        return hash ^ 0x66;