Examples of ae.java.awt.image.LookupTable

ae.java.awt.image.LookupTable
This abstract class defines a lookup table object. ByteLookupTable and ShortLookupTable are subclasses, which contain byte and short data, respectively. A lookup table contains data arrays for one or more bands (or components) of an image (for example, separate arrays for R, G, and B), and it contains an offset which will be subtracted from the input values before indexing into the arrays. This allows an array smaller than the native data size to be provided for a constrained input. If there is only one array in the lookup table, it will be applied to all bands. All arrays must be the same size. @see ByteLookupTable @see ShortLookupTable @see LookupOp

/**************************** LookupOp support ******************************/


    public static boolean isLookupOpValid(LookupOp lop,
                                          BufferedImage srcImg)
    {
        LookupTable table = lop.getTable();
        int numComps = table.getNumComponents();
        ColorModel srcCM = srcImg.getColorModel();


        if (srcCM instanceof IndexColorModel) {
            throw new
                IllegalArgumentException("LookupOp cannot be "+

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        // assert rq.lock.isHeldByCurrentThread();
        boolean nonPremult =
            srcImg.getColorModel().hasAlpha() &&
            srcImg.isAlphaPremultiplied();


        LookupTable table = lop.getTable();
        int numBands = table.getNumComponents();
        int offset = table.getOffset();
        int bandLength;
        int bytesPerElem;
        boolean shortData;


        if (table instanceof ShortLookupTable) {

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        WritableRaster retRaster = null;
        switch (getNativeOpIndex(op.getClass())) {


          case LOOKUP_OP:
            // REMIND: Fix this!
            LookupTable table = ((LookupOp)op).getTable();
            if (table.getOffset() != 0) {
                // Right now the native code doesn't support offsets
                return null;
            }
            if (table instanceof ByteLookupTable) {
                ByteLookupTable bt = (ByteLookupTable) table;

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        BufferedImage retBI = null;
        switch (getNativeOpIndex(op.getClass())) {


          case LOOKUP_OP:
            // REMIND: Fix this!
            LookupTable table = ((LookupOp)op).getTable();
            if (table.getOffset() != 0) {
                // Right now the native code doesn't support offsets
                return null;
            }
            if (table instanceof ByteLookupTable) {
                ByteLookupTable bt = (ByteLookupTable) table;

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Related Classes of ae.java.awt.image.LookupTable

ae.sun.awt.image.ImagingLib

ae.sun.java2d.pipe.BufferedBufImgOps

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