Examples with IIOException javax.imageio.IIOException used on opensource projects

Example 51 with IIOException

use of javax.imageio.IIOException in project imageio-ext by geosolutions-it.

the class NITFReader method readHeader.

public synchronized void readHeader() throws IOException {
    if (reader != null)
        return;
    if (handle == null) {
        throw new IllegalStateException("No input handle");
    }
    try {
        reader = new Reader();
        record = reader.read(handle);
    } catch (NITFException e) {
        LOGGER.severe(e.getLocalizedMessage());
        throw new IIOException("NITF Exception", e);
    }
}

Example 52 with IIOException

use of javax.imageio.IIOException in project imageio-ext by geosolutions-it.

the class TIFFDecompressor method reformatData.

/**
 * Reformats data read as bytes into a short or int buffer.
 */
private static void reformatData(byte[] buf, int bytesPerRow, int numRows, short[] shortData, int[] intData, int outOffset, int outStride) throws IIOException {
    if (shortData != null) {
        if (DEBUG) {
            System.out.println("Reformatting data to short");
        }
        int inOffset = 0;
        int shortsPerRow = bytesPerRow / 2;
        int numExtraBytes = bytesPerRow % 2;
        for (int j = 0; j < numRows; j++) {
            int k = outOffset;
            for (int i = 0; i < shortsPerRow; i++) {
                shortData[k++] = (short) (((buf[inOffset++] & 0xff) << 8) | (buf[inOffset++] & 0xff));
            }
            if (numExtraBytes != 0) {
                shortData[k++] = (short) ((buf[inOffset++] & 0xff) << 8);
            }
            outOffset += outStride;
        }
    } else if (intData != null) {
        if (DEBUG) {
            System.out.println("Reformatting data to int");
        }
        int inOffset = 0;
        int intsPerRow = bytesPerRow / 4;
        int numExtraBytes = bytesPerRow % 4;
        for (int j = 0; j < numRows; j++) {
            int k = outOffset;
            for (int i = 0; i < intsPerRow; i++) {
                intData[k++] = ((buf[inOffset++] & 0xff) << 24) | ((buf[inOffset++] & 0xff) << 16) | ((buf[inOffset++] & 0xff) << 8) | (buf[inOffset++] & 0xff);
            }
            if (numExtraBytes != 0) {
                int shift = 24;
                int ival = 0;
                for (int b = 0; b < numExtraBytes; b++) {
                    ival |= (buf[inOffset++] & 0xff) << shift;
                    shift -= 8;
                }
                intData[k++] = ival;
            }
            outOffset += outStride;
        }
    } else {
        throw new IIOException("shortData == null && intData == null!");
    }
}

Example 53 with IIOException

use of javax.imageio.IIOException in project imageio-ext by geosolutions-it.

the class TIFFDecompressor method decode.

/**
 * Decodes the input bit stream (located in the
 * <code>ImageInputStream</code> <code>stream</code>, at offset
 * <code>offset</code>, and continuing for <code>byteCount</code>
 * bytes) into the output <code>BufferedImage</code>
 * <code>image</code>.
 *
 * <p> The default implementation analyzes the destination image
 * to determine if it is suitable as the destination for the
 * <code>decodeRaw</code> method.  If not, a suitable image is
 * created.  Next, <code>decodeRaw</code> is called to perform the
 * actual decoding, and the results are copied into the
 * destination image if necessary.  Subsampling and offsetting are
 * performed automatically.
 *
 * <p> The precise responsibilities of this routine are as
 * follows.  The input bit stream is defined by the instance
 * variables <code>stream</code>, <code>offset</code>, and
 * <code>byteCount</code>.  These bits contain the data for the
 * region of the source image defined by <code>srcMinX</code>,
 * <code>srcMinY</code>, <code>srcWidth</code>, and
 * <code>srcHeight</code>.
 *
 * <p> The source data is required to be subsampling, starting at
 * the <code>sourceXOffset</code>th column and including
 * every <code>subsampleX</code>th pixel thereafter (and similarly
 * for <code>sourceYOffset</code> and
 * <code>subsampleY</code>).
 *
 * <p> Pixels are copied into the destination with an addition shift of
 * (<code>dstXOffset</code>, <code>dstYOffset</code>).  The complete
 * set of formulas relating the source and destination coordinate spaces
 * are:
 *
 * <pre>
 * dx = (sx - sourceXOffset)/subsampleX + dstXOffset;
 * dy = (sy - sourceYOffset)/subsampleY + dstYOffset;
 * </pre>
 *
 * Only source pixels such that <code>(sx - sourceXOffset) %
 * subsampleX == 0</code> and <code>(sy - sourceYOffset) %
 * subsampleY == 0</code> are copied.
 *
 * <p> The inverse mapping, from destination to source coordinates,
 * is one-to-one:
 *
 * <pre>
 * sx = (dx - dstXOffset)*subsampleX + sourceXOffset;
 * sy = (dy - dstYOffset)*subsampleY + sourceYOffset;
 * </pre>
 *
 * <p> The region of the destination image to be updated is given
 * by the instance variables <code>dstMinX</code>,
 * <code>dstMinY</code>, <code>dstWidth</code>, and
 * <code>dstHeight</code>.
 *
 * <p> It is possible that not all of the source data being read
 * will contribute to the destination image.  For example, the
 * destination offsets could be set such that some of the source
 * pixels land outside of the bounds of the image.  As a
 * convenience, the bounds of the active source region (that is,
 * the region of the strip or tile being read that actually
 * contributes to the destination image, taking clipping into
 * account) are available as <code>activeSrcMinX</code>,
 * <code>activeSrcMinY</code>, <code>activeSrcWidth</code> and
 * <code>activeSrcHeight</code>.  Thus, the source pixel at
 * (<code>activeSrcMinX</code>, <code>activeSrcMinY</code>) will
 * map to the destination pixel (<code>dstMinX</code>,
 * <code>dstMinY</code>).
 *
 * <p> The sequence of source bands given by
 * <code>sourceBands</code> are to be copied into the sequence of
 * bands in the destination given by
 * <code>destinationBands</code>.
 *
 * <p> Some standard tag information is provided the instance
 * variables <code>photometricInterpretation</code>,
 * <code>compression</code>, <code>samplesPerPixel</code>,
 * <code>bitsPerSample</code>, <code>sampleFormat</code>,
 * <code>extraSamples</code>, and <code>colorMap</code>.
 *
 * <p> In practice, unless there is a significant performance
 * advantage to be gained by overriding this routine, most users
 * will prefer to use the default implementation of this routine,
 * and instead override the <code>decodeRaw</code> and/or
 * <code>getRawImageType</code> methods.
 *
 * @exception IOException if an error occurs in
 * <code>decodeRaw</code>.
 */
public void decode() throws IOException {
    byte[] byteData = null;
    short[] shortData = null;
    int[] intData = null;
    float[] floatData = null;
    double[] doubleData = null;
    int dstOffset = 0;
    int pixelBitStride = 1;
    int scanlineStride = 0;
    if (useTurbo) {
        decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
    } else {
        // Analyze raw image
        this.rawImage = null;
        if (isImageSimple) {
            if (isBilevel) {
                rawImage = this.image;
            } else if (isContiguous) {
                rawImage = image.getSubimage(dstMinX, dstMinY, dstWidth, dstHeight);
            }
        }
        boolean isDirectCopy = rawImage != null;
        if (rawImage == null) {
            rawImage = createRawImage();
            if (rawImage == null) {
                throw new IIOException("Couldn't create image buffer!");
            }
        }
        WritableRaster ras = rawImage.getRaster();
        if (isBilevel) {
            Rectangle rect = isImageSimple ? new Rectangle(dstMinX, dstMinY, dstWidth, dstHeight) : ras.getBounds();
            byteData = ImageUtil.getPackedBinaryData(ras, rect);
            dstOffset = 0;
            pixelBitStride = 1;
            scanlineStride = (rect.width + 7) / 8;
        } else {
            SampleModel sm = ras.getSampleModel();
            DataBuffer db = ras.getDataBuffer();
            boolean isSupportedType = false;
            if (sm instanceof ComponentSampleModel) {
                ComponentSampleModel csm = (ComponentSampleModel) sm;
                dstOffset = csm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                scanlineStride = csm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    pixelBitStride = csm.getPixelStride() * 8;
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    pixelBitStride = csm.getPixelStride() * 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferShort) {
                    DataBufferShort dbs = (DataBufferShort) db;
                    shortData = dbs.getData();
                    pixelBitStride = csm.getPixelStride() * 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    pixelBitStride = csm.getPixelStride() * 32;
                    isSupportedType = true;
                } else if (db instanceof DataBufferFloat) {
                    DataBufferFloat dbf = (DataBufferFloat) db;
                    floatData = dbf.getData();
                    pixelBitStride = csm.getPixelStride() * 32;
                    isSupportedType = true;
                } else if (db instanceof DataBufferDouble) {
                    DataBufferDouble dbf = (DataBufferDouble) db;
                    doubleData = dbf.getData();
                    pixelBitStride = csm.getPixelStride() * 64;
                    isSupportedType = true;
                }
            } else if (sm instanceof MultiPixelPackedSampleModel) {
                MultiPixelPackedSampleModel mppsm = (MultiPixelPackedSampleModel) sm;
                dstOffset = mppsm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                pixelBitStride = mppsm.getPixelBitStride();
                scanlineStride = mppsm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    isSupportedType = true;
                }
            } else if (sm instanceof SinglePixelPackedSampleModel) {
                SinglePixelPackedSampleModel sppsm = (SinglePixelPackedSampleModel) sm;
                dstOffset = sppsm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                scanlineStride = sppsm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    pixelBitStride = 8;
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    pixelBitStride = 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    pixelBitStride = 32;
                    isSupportedType = true;
                }
            }
            if (!isSupportedType) {
                throw new IIOException("Unsupported raw image type: SampleModel = " + sm + "; DataBuffer = " + db);
            }
        }
        if (isBilevel) {
            // Bilevel data are always in a contiguous byte buffer.
            decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
        } else {
            SampleModel sm = ras.getSampleModel();
            // bits except at the end of a row.
            if (isDataBufferBitContiguous(sm)) {
                // Use byte or float data directly.
                if (byteData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding bytes directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(byteData, dstOffset, pixelBitStride, scanlineStride, noData.byteValue());
                    } else {
                        decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else if (floatData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding floats directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(floatData, dstOffset, pixelBitStride, scanlineStride, noData.floatValue());
                    } else {
                        decodeRaw(floatData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else if (doubleData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding doubles directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(doubleData, dstOffset, pixelBitStride, scanlineStride, noData.doubleValue());
                    } else {
                        decodeRaw(doubleData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else {
                    if (shortData != null) {
                        if (offset == 0 && byteCount == 0 && noData != null) {
                            setEmptyTile(shortData, dstOffset, pixelBitStride, scanlineStride, noData.shortValue());
                        } else if (areSampleSizesEqual(sm) && sm.getSampleSize(0) == 16) {
                            if (DEBUG) {
                                System.out.println("Decoding shorts directly");
                            }
                            // Decode directly into short data.
                            decodeRaw(shortData, dstOffset, pixelBitStride, scanlineStride);
                        } else {
                            if (DEBUG) {
                                System.out.println("Decoding bytes->shorts");
                            }
                            // Decode into bytes and reformat into shorts.
                            int bpp = getBitsPerPixel(sm);
                            int bytesPerRow = (bpp * srcWidth + 7) / 8;
                            byte[] buf = new byte[bytesPerRow * srcHeight];
                            decodeRaw(buf, 0, bpp, bytesPerRow);
                            reformatData(buf, bytesPerRow, srcHeight, shortData, null, dstOffset, scanlineStride);
                        }
                    } else if (intData != null) {
                        if (offset == 0 && byteCount == 0 && noData != null) {
                            setEmptyTile(intData, dstOffset, pixelBitStride, scanlineStride, noData.intValue());
                        } else if (areSampleSizesEqual(sm) && sm.getSampleSize(0) == 32) {
                            if (DEBUG) {
                                System.out.println("Decoding ints directly");
                            }
                            // Decode directly into int data.
                            decodeRaw(intData, dstOffset, pixelBitStride, scanlineStride);
                        } else {
                            if (DEBUG) {
                                System.out.println("Decoding bytes->ints");
                            }
                            // Decode into bytes and reformat into ints.
                            int bpp = getBitsPerPixel(sm);
                            int bytesPerRow = (bpp * srcWidth + 7) / 8;
                            byte[] buf = new byte[bytesPerRow * srcHeight];
                            decodeRaw(buf, 0, bpp, bytesPerRow);
                            reformatData(buf, bytesPerRow, srcHeight, null, intData, dstOffset, scanlineStride);
                        }
                    }
                }
            } else {
                if (DEBUG) {
                    System.out.println("Decoding discontiguous data");
                }
                // Read discontiguous data into bytes and set the samples
                // into the Raster.
                int bpp = getBitsPerPixel(sm);
                int bytesPerRow = (bpp * srcWidth + 7) / 8;
                byte[] buf = new byte[bytesPerRow * srcHeight];
                decodeRaw(buf, 0, bpp, bytesPerRow);
                reformatDiscontiguousData(buf, bytesPerRow, srcWidth, srcHeight, ras);
            }
        }
        if (colorConverter != null) {
            float[] rgb = new float[3];
            if (byteData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = (float) (byteData[idx] & 0xff);
                        float x1 = (float) (byteData[idx + 1] & 0xff);
                        float x2 = (float) (byteData[idx + 2] & 0xff);
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        byteData[idx] = (byte) (rgb[0]);
                        byteData[idx + 1] = (byte) (rgb[1]);
                        byteData[idx + 2] = (byte) (rgb[2]);
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            } else if (shortData != null) {
                if (sampleFormat[0] == BaselineTIFFTagSet.SAMPLE_FORMAT_SIGNED_INTEGER) {
                    for (int j = 0; j < dstHeight; j++) {
                        int idx = dstOffset;
                        for (int i = 0; i < dstWidth; i++) {
                            float x0 = (float) shortData[idx];
                            float x1 = (float) shortData[idx + 1];
                            float x2 = (float) shortData[idx + 2];
                            colorConverter.toRGB(x0, x1, x2, rgb);
                            shortData[idx] = (short) (rgb[0]);
                            shortData[idx + 1] = (short) (rgb[1]);
                            shortData[idx + 2] = (short) (rgb[2]);
                            idx += 3;
                        }
                        dstOffset += scanlineStride;
                    }
                } else {
                    for (int j = 0; j < dstHeight; j++) {
                        int idx = dstOffset;
                        for (int i = 0; i < dstWidth; i++) {
                            float x0 = (float) (shortData[idx] & 0xffff);
                            float x1 = (float) (shortData[idx + 1] & 0xffff);
                            float x2 = (float) (shortData[idx + 2] & 0xffff);
                            colorConverter.toRGB(x0, x1, x2, rgb);
                            shortData[idx] = (short) (rgb[0]);
                            shortData[idx + 1] = (short) (rgb[1]);
                            shortData[idx + 2] = (short) (rgb[2]);
                            idx += 3;
                        }
                        dstOffset += scanlineStride;
                    }
                }
            } else if (intData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = (float) intData[idx];
                        float x1 = (float) intData[idx + 1];
                        float x2 = (float) intData[idx + 2];
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        intData[idx] = (int) (rgb[0]);
                        intData[idx + 1] = (int) (rgb[1]);
                        intData[idx + 2] = (int) (rgb[2]);
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            } else if (floatData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = floatData[idx];
                        float x1 = floatData[idx + 1];
                        float x2 = floatData[idx + 2];
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        floatData[idx] = rgb[0];
                        floatData[idx + 1] = rgb[1];
                        floatData[idx + 2] = rgb[2];
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            }
        // int[] p = new int[3];
        // ras.getPixel(0, 0, p);
        // System.out.println("p00 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(1, 0, p);
        // System.out.println("p10 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(2, 0, p);
        // System.out.println("p20 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(3, 0, p);
        // System.out.println("p30 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ColorSpace rgb = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        // ColorConvertOp op = new ColorConvertOp(colorSpace, rgb, null);
        // WritableRaster dest = op.createCompatibleDestRaster(ras);
        // op.filter(ras, dest);
        // ras = dest;
        }
        if (photometricInterpretation == BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_WHITE_IS_ZERO) {
            if (byteData != null) {
                int bytesPerRow = (srcWidth * pixelBitStride + 7) / 8;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < bytesPerRow; i++) {
                        byteData[offset + i] ^= 0xff;
                    }
                }
            } else if (shortData != null) {
                int shortsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                if (sampleFormat[0] == BaselineTIFFTagSet.SAMPLE_FORMAT_SIGNED_INTEGER) {
                    for (int y = 0; y < srcHeight; y++) {
                        int offset = dstOffset + y * scanlineStride;
                        for (int i = 0; i < shortsPerRow; i++) {
                            int shortOffset = offset + i;
                            // XXX Does this make any sense?
                            shortData[shortOffset] = (short) (Short.MAX_VALUE - shortData[shortOffset]);
                        }
                    }
                } else {
                    for (int y = 0; y < srcHeight; y++) {
                        int offset = dstOffset + y * scanlineStride;
                        for (int i = 0; i < shortsPerRow; i++) {
                            shortData[offset + i] ^= 0xffff;
                        }
                    }
                }
            } else if (intData != null) {
                int intsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < intsPerRow; i++) {
                        int intOffset = offset + i;
                        // XXX Does this make any sense?
                        intData[intOffset] = Integer.MAX_VALUE - intData[intOffset];
                    }
                }
            } else if (floatData != null) {
                int floatsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < floatsPerRow; i++) {
                        int floatOffset = offset + i;
                        // XXX Does this make any sense?
                        floatData[floatOffset] = 1.0F - floatData[floatOffset];
                    }
                }
            }
        }
        if (isBilevel) {
            Rectangle rect = isImageSimple ? new Rectangle(dstMinX, dstMinY, dstWidth, dstHeight) : ras.getBounds();
            ImageUtil.setPackedBinaryData(byteData, ras, rect);
        }
        // equals the raster of 'image' or is a child thereof.
        if (isDirectCopy) {
            // rawImage == image) {
            return;
        }
    }
    // Copy the raw image data into the true destination image
    Raster src = rawImage.getRaster();
    // Create band child of source
    Raster srcChild = src.createChild(0, 0, srcWidth, srcHeight, srcMinX, srcMinY, planar ? null : sourceBands);
    WritableRaster dst = image.getRaster();
    // Create dst child covering area and bands to be written
    WritableRaster dstChild = dst.createWritableChild(dstMinX, dstMinY, dstWidth, dstHeight, dstMinX, dstMinY, destinationBands);
    if (subsampleX == 1 && subsampleY == 1 && !adjustBitDepths) {
        srcChild = srcChild.createChild(activeSrcMinX, activeSrcMinY, activeSrcWidth, activeSrcHeight, dstMinX, dstMinY, null);
        dstChild.setRect(srcChild);
    } else if (subsampleX == 1 && !adjustBitDepths) {
        int sy = activeSrcMinY;
        int dy = dstMinY;
        while (sy < srcMinY + srcHeight) {
            Raster srcRow = srcChild.createChild(activeSrcMinX, sy, activeSrcWidth, 1, dstMinX, dy, null);
            dstChild.setRect(srcRow);
            sy += subsampleY;
            ++dy;
        }
    } else {
        // /init vars
        int numBands = srcChild.getNumBands();
        int sy = activeSrcMinY;
        int dy = dstMinY;
        // get the databuffer type
        final int type = srcChild.getDataBuffer().getDataType();
        switch(type) {
            case DataBuffer.TYPE_BYTE:
            case DataBuffer.TYPE_INT:
            case DataBuffer.TYPE_SHORT:
            case DataBuffer.TYPE_USHORT:
                int[] p = srcChild.getPixel(srcMinX, srcMinY, (int[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, p);
                        if (adjustBitDepths) {
                            for (int band = 0; band < numBands; band++) {
                                p[band] = bitDepthScale[band][p[band]];
                            }
                        }
                        dstChild.setPixel(dx, dy, p);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            case DataBuffer.TYPE_DOUBLE:
                double[] d = srcChild.getPixel(srcMinX, srcMinY, (double[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, d);
                        // if (adjustBitDepths) {
                        // for (int band = 0; band < numBands; band++) {
                        // d[band] = bitDepthScale[band][d[band]];
                        // }
                        // }
                        dstChild.setPixel(dx, dy, d);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            case DataBuffer.TYPE_FLOAT:
                float[] f = srcChild.getPixel(srcMinX, srcMinY, (float[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, f);
                        // if (adjustBitDepths) {
                        // for (int band = 0; band < numBands; band++) {
                        // d[band] = bitDepthScale[band][d[band]];
                        // }
                        // }
                        dstChild.setPixel(dx, dy, f);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            default:
                break;
        }
    }
}

Example 54 with IIOException

use of javax.imageio.IIOException in project imageio-ext by geosolutions-it.

the class TIFFDeflateDecompressor method decodeRaw.

public synchronized void decodeRaw(byte[] b, int dstOffset, int bitsPerPixel, int scanlineStride) throws IOException {
    // Check bitsPerSample.
    if (predictor == BaselineTIFFTagSet.PREDICTOR_HORIZONTAL_DIFFERENCING) {
        int len = bitsPerSample.length;
        final int bps = bitsPerSample[0];
        if (bps != 8 && bps != 16) {
            throw new IIOException(bps + "-bit samples " + "are not supported for Horizontal " + "differencing Predictor");
        }
        for (int i = 0; i < len; i++) {
            if (bitsPerSample[i] != bps) {
                throw new IIOException("Varying sample width is not " + "supported for Horizontal " + "differencing Predictor (first: " + bps + ", unexpected:" + bitsPerSample[i] + ")");
            }
        }
    }
    // Seek to current tile data offset.
    stream.seek(offset);
    // Read the deflated data.
    byte[] srcData = new byte[byteCount];
    stream.readFully(srcData);
    int bytesPerRow = (srcWidth * bitsPerPixel + 7) / 8;
    byte[] buf;
    int bufOffset;
    if (bytesPerRow == scanlineStride) {
        buf = b;
        bufOffset = dstOffset;
    } else {
        buf = new byte[bytesPerRow * srcHeight];
        bufOffset = 0;
    }
    // Set the input to the Inflater.
    inflater.setInput(srcData);
    // Inflate the data.
    try {
        inflater.inflate(buf, bufOffset, bytesPerRow * srcHeight);
    } catch (DataFormatException dfe) {
        throw new IIOException(I18N.getString("TIFFDeflateDecompressor0"), dfe);
    }
    // Reset the Inflater.
    inflater.reset();
    if (predictor == BaselineTIFFTagSet.PREDICTOR_HORIZONTAL_DIFFERENCING) {
        if (bitsPerSample[0] == 8) {
            for (int j = 0; j < srcHeight; j++) {
                int count = bufOffset + samplesPerPixel * (j * srcWidth + 1);
                for (int i = samplesPerPixel; i < srcWidth * samplesPerPixel; i++) {
                    buf[count] += buf[count - samplesPerPixel];
                    count++;
                }
            }
        } else if (bitsPerSample[0] == 16) {
            if (stream.getByteOrder() == ByteOrder.LITTLE_ENDIAN) {
                for (int j = 0; j < srcHeight; j++) {
                    int count = dstOffset + samplesPerPixel * (j * srcWidth + 1) * 2;
                    for (int i = samplesPerPixel; i < srcWidth * samplesPerPixel; i++) {
                        int curr = (((int) buf[count]) & 0xFF) + (buf[count + 1] << 8);
                        int prev = (((int) buf[count - samplesPerPixel * 2]) & 0xFF) + (buf[count + 1 - samplesPerPixel * 2] << 8);
                        curr += prev;
                        buf[count] = (byte) curr;
                        buf[count + 1] = (byte) (curr >> 8);
                        count += 2;
                    }
                }
            } else {
                for (int j = 0; j < srcHeight; j++) {
                    int count = dstOffset + samplesPerPixel * (j * srcWidth + 1) * 2;
                    for (int i = samplesPerPixel; i < srcWidth * samplesPerPixel; i++) {
                        int curr = (((int) buf[count + 1]) & 0xFF) + (buf[count] << 8);
                        int prev = (((int) buf[count + 1 - samplesPerPixel * 2]) & 0xFF) + (buf[count - samplesPerPixel * 2] << 8);
                        curr += prev;
                        buf[count + 1] = (byte) curr;
                        buf[count] = (byte) (curr >> 8);
                        count += 2;
                    }
                }
            }
        } else
            throw new IIOException("Unexpected branch of Horizontal differencing Predictor, bps=" + bitsPerSample[0]);
    }
    if (bytesPerRow != scanlineStride) {
        if (DEBUG) {
            System.out.println("bytesPerRow != scanlineStride");
        }
        int off = 0;
        for (int y = 0; y < srcHeight; y++) {
            System.arraycopy(buf, off, b, dstOffset, bytesPerRow);
            off += bytesPerRow;
            dstOffset += scanlineStride;
        }
    }
}

Example 55 with IIOException

use of javax.imageio.IIOException in project imageio-ext by geosolutions-it.

the class TIFFBaseJPEGCompressor method encode.

public final int encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride) throws IOException {
    if (this.JPEGWriter == null) {
        throw new IIOException("JPEG writer has not been initialized!");
    }
    if (!((bitsPerSample.length == 3 && bitsPerSample[0] == 8 && bitsPerSample[1] == 8 && bitsPerSample[2] == 8) || (bitsPerSample.length == 1 && bitsPerSample[0] == 8))) {
        throw new IIOException("Can only JPEG compress 8- and 24-bit images!");
    }
    // Set the stream.
    ImageOutputStream ios;
    // usingCodecLib && !writeAbbreviatedStream
    long initialStreamPosition;
    if (usingCodecLib && !writeAbbreviatedStream) {
        ios = stream;
        initialStreamPosition = stream.getStreamPosition();
    } else {
        // is using a stream on the native side which cannot be reset.
        if (baos == null) {
            baos = new IIOByteArrayOutputStream();
        } else {
            baos.reset();
        }
        ios = new MemoryCacheImageOutputStream(baos);
        initialStreamPosition = 0L;
    }
    JPEGWriter.setOutput(ios);
    // Create a DataBuffer.
    DataBufferByte dbb;
    if (off == 0 || usingCodecLib) {
        dbb = new DataBufferByte(b, b.length);
    } else {
        // 
        // Workaround for bug in core Java Image I/O JPEG
        // ImageWriter which cannot handle non-zero offsets.
        // 
        int bytesPerSegment = scanlineStride * height;
        byte[] btmp = new byte[bytesPerSegment];
        System.arraycopy(b, off, btmp, 0, bytesPerSegment);
        dbb = new DataBufferByte(btmp, bytesPerSegment);
        off = 0;
    }
    // Set up the ColorSpace.
    int[] offsets;
    ColorSpace cs;
    if (bitsPerSample.length == 3) {
        offsets = new int[] { off, off + 1, off + 2 };
        cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    } else {
        offsets = new int[] { off };
        cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
    }
    // Create the ColorModel.
    ColorModel cm = new ComponentColorModel(cs, false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
    // Create the SampleModel.
    SampleModel sm = new PixelInterleavedSampleModel(DataBuffer.TYPE_BYTE, width, height, bitsPerSample.length, scanlineStride, offsets);
    // Create the WritableRaster.
    WritableRaster wras = Raster.createWritableRaster(sm, dbb, new Point(0, 0));
    // Create the BufferedImage.
    BufferedImage bi = new BufferedImage(cm, wras, false, null);
    // Get the pruned JPEG image metadata (may be null).
    IIOMetadata imageMetadata = getImageMetadata(writeAbbreviatedStream);
    // Compress the image into the output stream.
    int compDataLength;
    if (usingCodecLib && !writeAbbreviatedStream) {
        // Write complete JPEG stream
        JPEGWriter.write(null, new IIOImage(bi, null, imageMetadata), JPEGParam);
        compDataLength = (int) (stream.getStreamPosition() - initialStreamPosition);
    } else {
        if (writeAbbreviatedStream) {
            // Write abbreviated JPEG stream
            // First write the tables-only data.
            JPEGWriter.prepareWriteSequence(JPEGStreamMetadata);
            ios.flush();
            // Rewind to the beginning of the byte array.
            baos.reset();
            // Write the abbreviated image data.
            IIOImage image = new IIOImage(bi, null, imageMetadata);
            JPEGWriter.writeToSequence(image, JPEGParam);
            JPEGWriter.endWriteSequence();
        } else {
            // Write complete JPEG stream
            JPEGWriter.write(null, new IIOImage(bi, null, imageMetadata), JPEGParam);
        }
        compDataLength = baos.size();
        baos.writeTo(stream);
        baos.reset();
    }
    return compDataLength;
}