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

Example 61 with ImageTypeSpecifier

use of javax.imageio.ImageTypeSpecifier in project jdk8u_jdk by JetBrains.

the class BMPImageReader method readEmbedded.

/** Decodes the jpeg/png image embedded in the bitmap using any jpeg
     *  ImageIO-style plugin.
     *
     * @param bi The destination <code>BufferedImage</code>.
     * @param bmpParam The <code>ImageReadParam</code> for decoding this
     *          BMP image.  The parameters for subregion, band selection and
     *          subsampling are used in decoding the jpeg image.
     */
private BufferedImage readEmbedded(int type, BufferedImage bi, ImageReadParam bmpParam) throws IOException {
    String format;
    switch(type) {
        case BI_JPEG:
            format = "JPEG";
            break;
        case BI_PNG:
            format = "PNG";
            break;
        default:
            throw new IOException("Unexpected compression type: " + type);
    }
    ImageReader reader = ImageIO.getImageReadersByFormatName(format).next();
    if (reader == null) {
        throw new RuntimeException(I18N.getString("BMPImageReader4") + " " + format);
    }
    // prepare input
    byte[] buff = new byte[(int) imageSize];
    iis.read(buff);
    reader.setInput(ImageIO.createImageInputStream(new ByteArrayInputStream(buff)));
    if (bi == null) {
        ImageTypeSpecifier embType = reader.getImageTypes(0).next();
        bi = embType.createBufferedImage(destinationRegion.x + destinationRegion.width, destinationRegion.y + destinationRegion.height);
    }
    reader.addIIOReadProgressListener(new EmbeddedProgressAdapter() {

        public void imageProgress(ImageReader source, float percentageDone) {
            processImageProgress(percentageDone);
        }
    });
    reader.addIIOReadUpdateListener(new IIOReadUpdateListener() {

        public void imageUpdate(ImageReader source, BufferedImage theImage, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands) {
            processImageUpdate(theImage, minX, minY, width, height, periodX, periodY, bands);
        }

        public void passComplete(ImageReader source, BufferedImage theImage) {
            processPassComplete(theImage);
        }

        public void passStarted(ImageReader source, BufferedImage theImage, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands) {
            processPassStarted(theImage, pass, minPass, maxPass, minX, minY, periodX, periodY, bands);
        }

        public void thumbnailPassComplete(ImageReader source, BufferedImage thumb) {
        }

        public void thumbnailPassStarted(ImageReader source, BufferedImage thumb, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands) {
        }

        public void thumbnailUpdate(ImageReader source, BufferedImage theThumbnail, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands) {
        }
    });
    reader.addIIOReadWarningListener(new IIOReadWarningListener() {

        public void warningOccurred(ImageReader source, String warning) {
            processWarningOccurred(warning);
        }
    });
    ImageReadParam param = reader.getDefaultReadParam();
    param.setDestination(bi);
    param.setDestinationBands(bmpParam.getDestinationBands());
    param.setDestinationOffset(bmpParam.getDestinationOffset());
    param.setSourceBands(bmpParam.getSourceBands());
    param.setSourceRegion(bmpParam.getSourceRegion());
    param.setSourceSubsampling(bmpParam.getSourceXSubsampling(), bmpParam.getSourceYSubsampling(), bmpParam.getSubsamplingXOffset(), bmpParam.getSubsamplingYOffset());
    reader.read(0, param);
    return bi;
}

Example 62 with ImageTypeSpecifier

use of javax.imageio.ImageTypeSpecifier in project jdk8u_jdk by JetBrains.

the class ImageUtil method canEncodeImage.

/** Checks that the provided <code>ImageWriter</code> can encode
     * the provided <code>ColorModel</code> and <code>SampleModel</code>.
     * If not, an <code>IIOException</code> will be thrown.
     * @param writer The provided <code>ImageWriter</code>.
     * @param colorModel The provided <code>ColorModel</code>.
     * @param sampleModel The provided <code>SampleModel</code>.
     * @throws IIOException If the writer cannot encoded the provided image.
     */
public static final void canEncodeImage(ImageWriter writer, ColorModel colorModel, SampleModel sampleModel) throws IIOException {
    ImageTypeSpecifier type = null;
    if (colorModel != null && sampleModel != null)
        type = new ImageTypeSpecifier(colorModel, sampleModel);
    canEncodeImage(writer, type);
}

Example 63 with ImageTypeSpecifier

use of javax.imageio.ImageTypeSpecifier in project jdk8u_jdk by JetBrains.

the class BMPImageReader method getImageTypes.

public Iterator getImageTypes(int imageIndex) throws IOException {
    checkIndex(imageIndex);
    try {
        readHeader();
    } catch (IllegalArgumentException e) {
        throw new IIOException(I18N.getString("BMPImageReader6"), e);
    }
    ArrayList list = new ArrayList(1);
    list.add(new ImageTypeSpecifier(originalColorModel, originalSampleModel));
    return list.iterator();
}

Example 64 with ImageTypeSpecifier

use of javax.imageio.ImageTypeSpecifier in project jdk8u_jdk by JetBrains.

the class PNGImageReader method getRawImageType.

/*
     * Super class implementation uses first element
     * of image types list as raw image type.
     *
     * Also, super implementation uses first element of this list
     * as default destination type image read param does not specify
     * anything other.
     *
     * However, in case of RGB and RGBA color types, raw image type
     * produces buffered image of custom type. It causes some
     * performance degradation of subsequent rendering operations.
     *
     * To resolve this contradiction we put standard image types
     * at the first positions of image types list (to produce standard
     * images by default) and put raw image type (which is custom)
     * at the last position of this list.
     *
     * After this changes we should override getRawImageType()
     * to return last element of image types list.
     */
public ImageTypeSpecifier getRawImageType(int imageIndex) throws IOException {
    Iterator<ImageTypeSpecifier> types = getImageTypes(imageIndex);
    ImageTypeSpecifier raw = null;
    do {
        raw = types.next();
    } while (types.hasNext());
    return raw;
}

Example 65 with ImageTypeSpecifier

use of javax.imageio.ImageTypeSpecifier in project poi by apache.

the class BitmapImageRenderer method readImage.

/**
     * Read the image data via ImageIO and optionally try to workaround metadata errors.
     * The resulting image is of image type {@link BufferedImage#TYPE_INT_ARGB}
     *
     * @param data the data stream
     * @param contentType the content type
     * @return the bufferedImage or null, if there was no image reader for this content type
     * @throws IOException thrown if there was an error while processing the image
     */
private static BufferedImage readImage(InputStream data, String contentType) throws IOException {
    IOException lastException = null;
    BufferedImage img = null;
    if (data.markSupported()) {
        data.mark(data.available());
    }
    // currently don't use FileCacheImageInputStream,
    // because of the risk of filling the file handles (see #59166)
    ImageInputStream iis = new MemoryCacheImageInputStream(data);
    try {
        iis = new MemoryCacheImageInputStream(data);
        iis.mark();
        Iterator<ImageReader> iter = ImageIO.getImageReaders(iis);
        while (img == null && iter.hasNext()) {
            ImageReader reader = iter.next();
            ImageReadParam param = reader.getDefaultReadParam();
            // 0:default mode, 1:fallback mode
            for (int mode = 0; img == null && mode < 3; mode++) {
                lastException = null;
                try {
                    iis.reset();
                } catch (IOException e) {
                    if (data.markSupported()) {
                        data.reset();
                        data.mark(data.available());
                        iis.close();
                        iis = new MemoryCacheImageInputStream(data);
                    } else {
                        // can't restore the input stream, so we need to stop processing here
                        lastException = e;
                        break;
                    }
                }
                iis.mark();
                try {
                    switch(mode) {
                        case 0:
                            reader.setInput(iis, false, true);
                            img = reader.read(0, param);
                            break;
                        case 1:
                            {
                                // try to load picture in gray scale mode
                                // fallback mode for invalid image band metadata
                                // see http://stackoverflow.com/questions/10416378
                                Iterator<ImageTypeSpecifier> imageTypes = reader.getImageTypes(0);
                                while (imageTypes.hasNext()) {
                                    ImageTypeSpecifier imageTypeSpecifier = imageTypes.next();
                                    int bufferedImageType = imageTypeSpecifier.getBufferedImageType();
                                    if (bufferedImageType == BufferedImage.TYPE_BYTE_GRAY) {
                                        param.setDestinationType(imageTypeSpecifier);
                                        break;
                                    }
                                }
                                reader.setInput(iis, false, true);
                                img = reader.read(0, param);
                                break;
                            }
                        case 2:
                            {
                                // try to load truncated pictures by supplying a BufferedImage
                                // and use the processed data up till the point of error
                                reader.setInput(iis, false, true);
                                int height = reader.getHeight(0);
                                int width = reader.getWidth(0);
                                Iterator<ImageTypeSpecifier> imageTypes = reader.getImageTypes(0);
                                if (imageTypes.hasNext()) {
                                    ImageTypeSpecifier imageTypeSpecifier = imageTypes.next();
                                    img = imageTypeSpecifier.createBufferedImage(width, height);
                                    param.setDestination(img);
                                } else {
                                    lastException = new IOException("unable to load even a truncated version of the image.");
                                    break;
                                }
                                try {
                                    reader.read(0, param);
                                } finally {
                                    if (img.getType() != BufferedImage.TYPE_INT_ARGB) {
                                        int y = findTruncatedBlackBox(img, width, height);
                                        if (y < height) {
                                            BufferedImage argbImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
                                            Graphics2D g = argbImg.createGraphics();
                                            g.clipRect(0, 0, width, y);
                                            g.drawImage(img, 0, 0, null);
                                            g.dispose();
                                            img.flush();
                                            img = argbImg;
                                        }
                                    }
                                }
                                break;
                            }
                    }
                } catch (IOException e) {
                    if (mode < 2) {
                        lastException = e;
                    }
                } catch (RuntimeException e) {
                    if (mode < 2) {
                        lastException = new IOException("ImageIO runtime exception - " + (mode == 0 ? "normal" : "fallback"), e);
                    }
                }
            }
            reader.dispose();
        }
    } finally {
        iis.close();
    }
    // If you don't have an image at the end of all readers
    if (img == null) {
        if (lastException != null) {
            // multiple locations above ...
            throw lastException;
        }
        LOG.log(POILogger.WARN, "Content-type: " + contentType + " is not support. Image ignored.");
        return null;
    }
    // add alpha channel
    if (img.getType() != BufferedImage.TYPE_INT_ARGB) {
        BufferedImage argbImg = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_INT_ARGB);
        Graphics g = argbImg.getGraphics();
        g.drawImage(img, 0, 0, null);
        g.dispose();
        return argbImg;
    }
    return img;
}