Examples of IIOException

ae.javax.imageio.IIOException
An exception class used for signaling run-time failure of reading and writing operations.
In addition to a message string, a reference to another Throwable (Error or Exception) is maintained. This reference, if non-null, refers to the event that caused this exception to occur. For example, an IOException while reading from a File would be stored there.
com.google.code.appengine.imageio.IIOException
javax.imageio.IIOException
An exception class used for signaling run-time failure of reading and writing operations.
In addition to a message string, a reference to another Throwable (Error or Exception) is maintained. This reference, if non-null, refers to the event that caused this exception to occur. For example, an IOException while reading from a File would be stored there.

Examples of javax.imageio.IIOException

        // users can read RGB and then convert to indexed in Java.


        ColorModel cm = image.getColorModel();


        if (cm instanceof IndexColorModel) {
            throw new IIOException("IndexColorModel not supported");
        }


        // Now check the ColorSpace type against outColorSpaceCode
        // We may want to tweak the default
        ColorSpace cs = cm.getColorSpace();
        int csType = cs.getType();
        convert = null;
        switch (outColorSpaceCode) {
        case JPEG.JCS_GRAYSCALE:  // Its gray in the file
            if  (csType == ColorSpace.TYPE_RGB) { // We want RGB
                // IJG can do this for us more efficiently
                setOutColorSpace(structPointer, JPEG.JCS_RGB);
                // Update java state according to changes
                // in the native part of decoder.
                outColorSpaceCode = JPEG.JCS_RGB;
                numComponents = 3;
            } else if (csType != ColorSpace.TYPE_GRAY) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case JPEG.JCS_RGB:  // IJG wants to go to RGB
            if (csType ==  ColorSpace.TYPE_GRAY) {  // We want gray
                if (colorSpaceCode == JPEG.JCS_YCbCr) {
                    // If the jpeg space is YCbCr, IJG can do it
                    setOutColorSpace(structPointer, JPEG.JCS_GRAYSCALE);
                    // Update java state according to changes
                    // in the native part of decoder.
                    outColorSpaceCode = JPEG.JCS_GRAYSCALE;
                    numComponents = 1;
                }
            } else if ((iccCS != null) &&
                       (cm.getNumComponents() == numComponents) &&
                       (cs != iccCS)) {
                // We have an ICC profile but it isn't used in the dest
                // image.  So convert from the profile cs to the target cs
                convert = new ColorConvertOp(iccCS, cs, null);
                // Leave IJG conversion in place; we still need it
            } else if ((iccCS == null) &&
                       (!cs.isCS_sRGB()) &&
                       (cm.getNumComponents() == numComponents)) {
                // Target isn't sRGB, so convert from sRGB to the target
                convert = new ColorConvertOp(JPEG.JCS.sRGB, cs, null);
            } else if (csType != ColorSpace.TYPE_RGB) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case JPEG.JCS_RGBA:
            // No conversions available; image must be RGBA
            if ((csType != ColorSpace.TYPE_RGB) ||
                (cm.getNumComponents() != numComponents)) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case JPEG.JCS_YCC:
            {
                ColorSpace YCC = JPEG.JCS.getYCC();
                if (YCC == null) { // We can't do YCC at all
                    throw new IIOException("Incompatible color conversion");
                }
                if ((cs != YCC) &&
                    (cm.getNumComponents() == numComponents)) {
                    convert = new ColorConvertOp(YCC, cs, null);
                }
            }
            break;
        case JPEG.JCS_YCCA:
            {
                ColorSpace YCC = JPEG.JCS.getYCC();
                // No conversions available; image must be YCCA
                if ((YCC == null) || // We can't do YCC at all
                    (cs != YCC) ||
                    (cm.getNumComponents() != numComponents)) {
                    throw new IIOException("Incompatible color conversion");
                }
            }
            break;
        default:
            // Anything else we can't handle at all
            throw new IIOException("Incompatible color conversion");
        }
    }

View Full Code Here

Examples of javax.imageio.IIOException


        if (!wantRaster){
            // Can we read this image?
            Iterator imageTypes = getImageTypes(imageIndex);
            if (imageTypes.hasNext() == false) {
                throw new IIOException("Unsupported Image Type");
            }


            image = getDestination(param, imageTypes, width, height);
            imRas = image.getRaster();


            // The destination may still be incompatible.


            numImageBands = image.getSampleModel().getNumBands();


            // Check whether we can handle any implied color conversion


            // Throws IIOException if the stream and the image are
            // incompatible, and sets convert if a java conversion
            // is necessary
            checkColorConversion(image, param);


            // Check the source and destination bands in the param
            checkReadParamBandSettings(param, numComponents, numImageBands);
        } else {
            // Set the output color space equal to the input colorspace
            // This disables all conversions
            setOutColorSpace(structPointer, colorSpaceCode);
            image = null;
        }


        // Create an intermediate 1-line Raster that will hold the decoded,
        // subsampled, clipped, band-selected image data in a single
        // byte-interleaved buffer.  The above transformations
        // will occur in C for performance.  Every time this Raster
        // is filled we will call back to acceptPixels below to copy
        // this to whatever kind of buffer our image has.


        int [] srcBands = JPEG.bandOffsets[numComponents-1];
        int numRasterBands = (wantRaster ? numComponents : numImageBands);
        destinationBands = null;


        Rectangle srcROI = new Rectangle(0, 0, 0, 0);
        destROI = new Rectangle(0, 0, 0, 0);
        computeRegions(param, width, height, image, srcROI, destROI);


        int periodX = 1;
        int periodY = 1;


        minProgressivePass = 0;
        maxProgressivePass = Integer.MAX_VALUE;


        if (param != null) {
            periodX = param.getSourceXSubsampling();
            periodY = param.getSourceYSubsampling();


            int[] sBands = param.getSourceBands();
            if (sBands != null) {
                srcBands = sBands;
                numRasterBands = srcBands.length;
            }
            if (!wantRaster) {  // ignore dest bands for Raster
                destinationBands = param.getDestinationBands();
            }


            minProgressivePass = param.getSourceMinProgressivePass();
            maxProgressivePass = param.getSourceMaxProgressivePass();


            if (param instanceof JPEGImageReadParam) {
                JPEGImageReadParam jparam = (JPEGImageReadParam) param;
                if (jparam.areTablesSet()) {
                    abbrevQTables = jparam.getQTables();
                    abbrevDCHuffmanTables = jparam.getDCHuffmanTables();
                    abbrevACHuffmanTables = jparam.getACHuffmanTables();
                }
            }
        }


        int lineSize = destROI.width*numRasterBands;


        buffer = new DataBufferByte(lineSize);


        int [] bandOffs = JPEG.bandOffsets[numRasterBands-1];


        raster = Raster.createInterleavedRaster(buffer,
                                                destROI.width, 1,
                                                lineSize,
                                                numRasterBands,
                                                bandOffs,
                                                null);


        // Now that we have the Raster we'll decode to, get a view of the
        // target Raster that will permit a simple setRect for each scanline
        if (wantRaster) {
            target =  Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
                                                     destROI.width,
                                                     destROI.height,
                                                     lineSize,
                                                     numRasterBands,
                                                     bandOffs,
                                                     null);
        } else {
            target = imRas;
        }
        int [] bandSizes = target.getSampleModel().getSampleSize();
        for (int i = 0; i < bandSizes.length; i++) {
            if (bandSizes[i] <= 0 || bandSizes[i] > 8) {
                throw new IIOException("Illegal band size: should be 0 < size <= 8");
            }
        }


        /*
         * If the process is sequential, and we have restart markers,

View Full Code Here

Examples of javax.imageio.IIOException

        Qtable(JPEGBuffer buffer) throws IIOException {
            elementPrecision = buffer.buf[buffer.bufPtr] >>> 4;
            tableID = buffer.buf[buffer.bufPtr++] & 0xf;
            if (elementPrecision != 0) {
                // IJG is compiled for 8-bits, so this shouldn't happen
                throw new IIOException ("Unsupported element precision");
            }
            data = new int [QTABLE_SIZE];
            // Read from zig-zag order to natural order
            for (int i = 0; i < QTABLE_SIZE; i++) {
                data[i] = buffer.buf[buffer.bufPtr+zigzag[i]] & 0xff;

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.