Examples of ae.java.awt.image.DataBufferInt

ae.java.awt.image.DataBufferInt
This class extends DataBuffer and stores data internally as integers.
Note that some implementations may function more efficiently if they can maintain control over how the data for an image is stored. For example, optimizations such as caching an image in video memory require that the implementation track all modifications to that data. Other implementations may operate better if they can store the data in locations other than a Java array. To maintain optimum compatibility with various optimizations it is best to avoid constructors and methods which expose the underlying storage as a Java array as noted below in the documentation for those methods.

        Rectangle translatedRect = new Rectangle(screenRect);
        translatedRect.translate(gdLoc.x, gdLoc.y);
        checkValidRect(translatedRect);


        BufferedImage image;
        DataBufferInt buffer;
        WritableRaster raster;


        if (screenCapCM == null) {
            /*
             * Fix for 4285201
             * Create a DirectColorModel equivalent to the default RGB ColorModel,
             * except with no Alpha component.
             */


            screenCapCM = new DirectColorModel(24,
                                               /* red mask */    0x00FF0000,
                                               /* green mask */  0x0000FF00,
                                               /* blue mask */   0x000000FF);
        }


        // need to sync the toolkit prior to grabbing the pixels since in some
        // cases rendering to the screen may be delayed
        Toolkit.getDefaultToolkit().sync();


        int pixels[];
        int[] bandmasks = new int[3];


        pixels = peer.getRGBPixels(translatedRect);
        buffer = new DataBufferInt(pixels, pixels.length);


        bandmasks[0] = screenCapCM.getRedMask();
        bandmasks[1] = screenCapCM.getGreenMask();
        bandmasks[2] = screenCapCM.getBlueMask();

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        // is SinglePixelPackedSampleModel.
        // Adjust for initial offset in DataBuffer and also for the scanline
        // stride.
        // These calls make the DataBuffer non-acceleratable, but the
        // Raster is never Stable long enough to accelerate anyway...
        DataBufferInt rasterDB = (DataBufferInt)raster.getDataBuffer();
        int[] pixels = rasterDB.getData(0);
        int off = rasterDB.getOffset();
        int scanlineStride = ((SinglePixelPackedSampleModel)
                              raster.getSampleModel()).getScanlineStride();
        int adjust = scanlineStride - w;


        fillRaster(pixels, off, adjust, x, y, w, h); // delegate to subclass

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        this.maxY = minY + height;
        if (!(dataBuffer instanceof DataBufferInt)) {
           throw new RasterFormatException("IntegerComponentRasters must have" +
                "integer DataBuffers");
        }
        DataBufferInt dbi = (DataBufferInt)dataBuffer;
        if (dbi.getNumBanks() != 1) {
            throw new
                RasterFormatException("DataBuffer for IntegerComponentRasters"+
                                      " must only have 1 bank.");
        }
        this.data = stealData(dbi, 0);


        if (sampleModel instanceof SinglePixelPackedSampleModel) {
            SinglePixelPackedSampleModel sppsm =
                    (SinglePixelPackedSampleModel)sampleModel;
            int[] boffsets = sppsm.getBitOffsets();
            boolean notByteBoundary = false;
            for (int i=1; i < boffsets.length; i++) {
                if ((boffsets[i]%8) != 0) {
                    notByteBoundary = true;
                }
            }
            this.type = (notByteBoundary
                         ? IntegerComponentRaster.TYPE_INT_PACKED_SAMPLES
                         : IntegerComponentRaster.TYPE_INT_8BIT_SAMPLES);


            this.scanlineStride = sppsm.getScanlineStride();
            this.pixelStride    = 1;
            this.dataOffsets = new int[1];
            this.dataOffsets[0] = dbi.getOffset();
            this.bandOffset = this.dataOffsets[0];
            int xOffset = aRegion.x - origin.x;
            int yOffset = aRegion.y - origin.y;
            dataOffsets[0] += xOffset+yOffset*scanlineStride;
            this.numDataElems = sppsm.getNumDataElements();

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        this.maxY = minY + height;
        if (!(dataBuffer instanceof DataBufferInt)) {
           throw new RasterFormatException("IntegerInterleavedRasters must have" +
                "integer DataBuffers");
        }
        DataBufferInt dbi = (DataBufferInt)dataBuffer;
        this.data = stealData(dbi, 0);


        if (sampleModel instanceof SinglePixelPackedSampleModel) {
            SinglePixelPackedSampleModel sppsm =
                    (SinglePixelPackedSampleModel)sampleModel;
            this.scanlineStride = sppsm.getScanlineStride();
            this.pixelStride    = 1;
            this.dataOffsets = new int[1];
            this.dataOffsets[0] = dbi.getOffset();
            this.bandOffset = this.dataOffsets[0];
            int xOffset = aRegion.x - origin.x;
            int yOffset = aRegion.y - origin.y;
            dataOffsets[0] += xOffset+yOffset*scanlineStride;
            this.numDataElems = sppsm.getNumDataElements();

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    private void convertToRGB() {
        int w = bimage.getWidth();
        int h = bimage.getHeight();
        int size = w*h;


        DataBufferInt dbi = new DataBufferInt(size);
        // Note that stealData() requires a markDirty() afterwards
        // since we modify the data in it.
        int newpixels[] = SunWritableRaster.stealData(dbi, 0);
        if (cmodel instanceof IndexColorModel &&
            biRaster instanceof ByteComponentRaster &&

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            int w = bimage.getWidth();
            int h = bimage.getHeight();
            int size = w * h;


            // Note that we steal the data array here, but only for reading...
            DataBufferInt db = (DataBufferInt)biRaster.getDataBuffer();
            int[] pixels = SunWritableRaster.stealData(db, 0);


            for (int i = 0; i < size; i++) {
                if ((pixels[i] >>> 24) != 0xff) {
                    return bimage;

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

ae.java.awt.MultipleGradientPaintContext

ae.java.awt.Robot

ae.sun.awt.image.ImageRepresentation

ae.sun.awt.image.IntegerComponentRaster

ae.sun.awt.image.IntegerInterleavedRaster

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