Examples of java.awt.image.RasterFormatException

java.awt.image.RasterFormatException
The RasterFormatException is thrown if there is invalid layout information in the {@link Raster}. @version 10 Feb 1997

     */
    private void verify (boolean strictCheck) {
        // Make sure data for Raster is in a legal range
        for (int i=0; i < dataOffsets.length; i++) {
            if (dataOffsets[i] < 0) {
                throw new RasterFormatException("Data offsets for band "+i+
                                                "("+dataOffsets[i]+
                                                ") must be >= 0");
            }
        }


        int maxSize = 0;
        int size;


        for (int i=0; i < numDataElements; i++) {
            size = (height-1)*scanlineStride + (width-1)*pixelStride +
                dataOffsets[i];
            if (size > maxSize) {
                maxSize = size;
            }
        }
        if (data.length < maxSize) {
            throw new RasterFormatException("Data array too small (should be "+
                                          maxSize+" )");
        }
    }

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        super(sampleModel,dataBuffer,aRegion,origin, parent);
        this.maxX = minX + width;
        this.maxY = minY + height;


        if (!(dataBuffer instanceof DataBufferByte)) {
           throw new RasterFormatException("BytePackedRasters must have" +
                "byte DataBuffers");
        }
        DataBufferByte dbb = (DataBufferByte)dataBuffer;
        this.data = stealData(dbb, 0);
        if (dbb.getNumBanks() != 1) {
            throw new
                RasterFormatException("DataBuffer for BytePackedRasters"+
                                      " must only have 1 bank.");
        }
        int dbOffset = dbb.getOffset();


        if (sampleModel instanceof MultiPixelPackedSampleModel) {
            MultiPixelPackedSampleModel mppsm =
                (MultiPixelPackedSampleModel)sampleModel;
            this.type = IntegerComponentRaster.TYPE_BYTE_BINARY_SAMPLES;
            pixelBitStride = mppsm.getPixelBitStride();
            if (pixelBitStride != 1 &&
                pixelBitStride != 2 &&
                pixelBitStride != 4) {
                throw new RasterFormatException
                  ("BytePackedRasters must have a bit depth of 1, 2, or 4");
            }
            scanlineStride = mppsm.getScanlineStride();
            dataBitOffset = mppsm.getDataBitOffset() + dbOffset*8;
            int xOffset = aRegion.x - origin.x;
            int yOffset = aRegion.y - origin.y;
            dataBitOffset += xOffset*pixelBitStride + yOffset*scanlineStride*8;
            bitMask = (1 << pixelBitStride) -1;
            shiftOffset = 8 - pixelBitStride;
        } else {
            throw new RasterFormatException("BytePackedRasters must have"+
                "MultiPixelPackedSampleModel");
        }
        verify(false);
    }

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    public WritableRaster createWritableChild(int x, int y,
                                              int width, int height,
                                              int x0, int y0,
                                              int[] bandList) {
        if (x < this.minX) {
            throw new RasterFormatException("x lies outside the raster");
        }
        if (y < this.minY) {
            throw new RasterFormatException("y lies outside the raster");
        }
        if ((x+width < x) || (x+width > this.minX + this.width)) {
            throw new RasterFormatException("(x + width) is outside of Raster");
        }
        if ((y+height < y) || (y+height > this.minY + this.height)) {
            throw new RasterFormatException("(y + height) is outside of Raster");
        }


        SampleModel sm;


        if (bandList != null) {

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     * Creates a raster with the same layout but using a different
     * width and height, and with new zeroed data arrays.
     */
    public WritableRaster createCompatibleWritableRaster(int w, int h) {
        if (w <= 0 || h <=0) {
            throw new RasterFormatException("negative "+
                                          ((w <= 0) ? "width" : "height"));
        }


        SampleModel sm = sampleModel.createCompatibleSampleModel(w,h);

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     *                    the data.  Otherwise returns null.
     */
    private void verify (boolean strictCheck) {
        // Make sure data for Raster is in a legal range
        if (dataBitOffset < 0) {
            throw new RasterFormatException("Data offsets must be >= 0");
        }


        int lastbit = (dataBitOffset
                       + (height-1) * scanlineStride * 8
                       + (width-1) * pixelBitStride
                       + pixelBitStride - 1);
        if (lastbit / 8 >= data.length) {
            throw new RasterFormatException("raster dimensions overflow " +
                                            "array bounds");
        }
        if (strictCheck) {
            if (height > 1) {
                lastbit = width * pixelBitStride - 1;
                if (lastbit / 8 >= scanlineStride) {
                    throw new RasterFormatException("data for adjacent" +
                                                    " scanlines overlaps");
                }
            }
        }
    }

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     * (the selection of alpha channel does not change the memory
     * requirements for the ImageBuilder or resulting BufferedImage.
     */
    public ImageBuilder(final int width, final int height, final boolean hasAlpha) {
        if (width <= 0) {
            throw new RasterFormatException("zero or negative width value");
        }
        if (height <= 0) {
            throw new RasterFormatException("zero or negative height value");
        }
            
        data = new int[width * height];
        this.width = width;
        this.height = height;

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     *         within this ImageBuilder
     */
    public BufferedImage getSubimage(final int x, final int y, final int w, final int h)
    {
        if (w <= 0) {
            throw new RasterFormatException("negative or zero subimage width");
        }
        if (h <= 0) {
            throw new RasterFormatException("negative or zero subimage height");
        }
        if (x < 0 || x >= width) {
            throw new RasterFormatException("subimage x is outside raster");
        }
        if (x + w > width) {
            throw new RasterFormatException(
                    "subimage (x+width) is outside raster");
        }
        if (y < 0 || y >= height) {
            throw new RasterFormatException("subimage y is outside raster");
        }
        if (y + h > height) {
            throw new RasterFormatException(
                    "subimage (y+height) is outside raster");
        }




        // Transcribe the data to an output image array

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