Examples with MemoryCacheImageInputStream javax.imageio.stream.MemoryCacheImageInputStream used on opensource projects

Example 6 with MemoryCacheImageInputStream

use of javax.imageio.stream.MemoryCacheImageInputStream in project jdk8u_jdk by JetBrains.

the class BooleanAttributes method test.

public static void test(String mimeType, boolean useStreamMeta, String metaXml, String... boolXpaths) throws Exception {
    BufferedImage img = new BufferedImage(16, 16, BufferedImage.TYPE_INT_RGB);
    ImageWriter iw = ImageIO.getImageWritersByMIMEType(mimeType).next();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageOutputStream ios = new MemoryCacheImageOutputStream(os);
    iw.setOutput(ios);
    ImageWriteParam param = null;
    IIOMetadata streamMeta = iw.getDefaultStreamMetadata(param);
    IIOMetadata imageMeta = iw.getDefaultImageMetadata(new ImageTypeSpecifier(img), param);
    IIOMetadata meta = useStreamMeta ? streamMeta : imageMeta;
    Source src = new StreamSource(new StringReader(metaXml));
    DOMResult dst = new DOMResult();
    transform(src, dst);
    Document doc = (Document) dst.getNode();
    Element node = doc.getDocumentElement();
    String metaFormat = node.getNodeName();
    // Verify that the default metadata gets formatted correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, false);
    meta.mergeTree(metaFormat, node);
    // Verify that the merged metadata gets formatte correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, true);
    iw.write(streamMeta, new IIOImage(img, null, imageMeta), param);
    iw.dispose();
    ios.close();
    ImageReader ir = ImageIO.getImageReader(iw);
    byte[] bytes = os.toByteArray();
    if (bytes.length == 0)
        throw new AssertionError("Zero length image file");
    ByteArrayInputStream is = new ByteArrayInputStream(bytes);
    ImageInputStream iis = new MemoryCacheImageInputStream(is);
    ir.setInput(iis);
    if (useStreamMeta)
        meta = ir.getStreamMetadata();
    else
        meta = ir.getImageMetadata(0);
    // Verify again after writing and re-reading the image
    verify(meta.getAsTree(metaFormat), boolXpaths, true);
}

Example 7 with MemoryCacheImageInputStream

use of javax.imageio.stream.MemoryCacheImageInputStream in project jdk8u_jdk by JetBrains.

the class ImageReaderReadAll method main.

public static void main(String[] argv) {
    ImageReader ireader;
    ImageReadParam irp;
    IIOImage image;
    BufferedImage bi;
    BufferedImage bi_1;
    BufferedImage bi_2;
    ireader = new DummyImageReaderImpl(null);
    MemoryCacheImageInputStream mciis = new MemoryCacheImageInputStream(new ByteArrayInputStream(ba));
    ireader.setInput(mciis);
    irp = new ImageReadParam();
    irp.setDestination(new BufferedImage(10, 10, BufferedImage.TYPE_3BYTE_BGR));
    try {
        image = ireader.readAll(0, irp);
        bi_1 = ireader.read(0, irp);
        bi_2 = ireader.read(0);
    } catch (java.io.IOException ee) {
        throw new RuntimeException("Unexpected exception: " + ee);
    }
    bi = (BufferedImage) image.getRenderedImage();
    if (bi.getType() != bi_1.getType()) {
        throw new RuntimeException("Images have different type!");
    }
}

Example 8 with MemoryCacheImageInputStream

use of javax.imageio.stream.MemoryCacheImageInputStream in project jdk8u_jdk by JetBrains.

the class ReadBytesIIOByteBuffer method main.

public static void main(String[] argv) {
    byte[] bar = { 1, 1, 1 };
    InputStream is = new ByteArrayInputStream(bar);
    ImageInputStream iis = new MemoryCacheImageInputStream(is);
    byte[] b = new byte[10];
    IIOByteBuffer iiob = new IIOByteBuffer(b, 0, b.length);
    try {
        iis.readBytes(iiob, -1);
    } catch (IndexOutOfBoundsException e) {
        return;
    } catch (Exception e) {
        throw new RuntimeException("Unexpected exception: " + e);
    }
    throw new RuntimeException("No exception thrown for len < 0!");
}

Example 9 with MemoryCacheImageInputStream

use of javax.imageio.stream.MemoryCacheImageInputStream in project jdk8u_jdk by JetBrains.

the class ReadFullyTest method main.

public static void main(String[] args) {
    try {
        byte[] b = { // low low
        (byte) 0x11, // low low
        (byte) 0x22, // low high
        (byte) 0x44, // low high
        (byte) 0x99, // high low
        (byte) 0xAA, // high low
        (byte) 0x33, // high high
        (byte) 0xBB, // high high
        (byte) 0xCC };
        InputStream in = new ByteArrayInputStream(b);
        ImageInputStream iin = new MemoryCacheImageInputStream(in);
        short[] s = new short[b.length / 2];
        char[] c = new char[b.length / 2];
        int[] i = new int[b.length / 4];
        long[] l = new long[b.length / 8];
        float[] f = new float[b.length / 4];
        double[] d = new double[b.length / 8];
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(s, 0, s.length);
        expect(s[0] & 0xffff, 0x1122);
        expect(s[1] & 0xffff, 0x4499);
        expect(s[2] & 0xffff, 0xAA33);
        expect(s[3] & 0xffff, 0xBBCC);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(s, 0, s.length);
        expect(s[0] & 0xffff, 0x2211);
        expect(s[1] & 0xffff, 0x9944);
        expect(s[2] & 0xffff, 0x33AA);
        expect(s[3] & 0xffff, 0xCCBB);
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(c, 0, c.length);
        expect(c[0], 0x1122);
        expect(c[1], 0x4499);
        expect(c[2], 0xAA33);
        expect(c[3], 0xBBCC);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(c, 0, c.length);
        expect(c[0], 0x2211);
        expect(c[1], 0x9944);
        expect(c[2], 0x33AA);
        expect(c[3], 0xCCBB);
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(i, 0, i.length);
        expect(i[0] & 0xffffffff, 0x11224499);
        expect(i[1] & 0xffffffff, 0xAA33BBCC);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(i, 0, i.length);
        expect(i[0] & 0xffffffff, 0x99442211);
        expect(i[1] & 0xffffffff, 0xCCBB33AA);
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(f, 0, f.length);
        expect(Float.floatToIntBits(f[0]) & 0xffffffff, 0x11224499);
        expect(Float.floatToIntBits(f[1]) & 0xffffffff, 0xAA33BBCC);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(f, 0, f.length);
        expect(Float.floatToIntBits(f[0]) & 0xffffffff, 0x99442211);
        expect(Float.floatToIntBits(f[1]) & 0xffffffff, 0xCCBB33AA);
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(l, 0, l.length);
        expect(l[0], 0x11224499AA33BBCCL);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(l, 0, l.length);
        expect(l[0], 0xCCBB33AA99442211L);
        iin.seek(0L);
        iin.setByteOrder(bigEndian);
        iin.readFully(d, 0, d.length);
        expect(Double.doubleToLongBits(d[0]), 0x11224499AA33BBCCL);
        iin.seek(0L);
        iin.setByteOrder(littleEndian);
        iin.readFully(d, 0, d.length);
        expect(Double.doubleToLongBits(d[0]), 0xCCBB33AA99442211L);
    } catch (Exception ex) {
        throw new RuntimeException("Got exception " + ex);
    }
}

Example 10 with MemoryCacheImageInputStream

use of javax.imageio.stream.MemoryCacheImageInputStream in project zm-mailbox by Zimbra.

the class NativeFormatter method getResizedImageData.

/**
     * If the image stored in the {@code MimePart} exceeds the given width,
     * shrinks the image and returns the shrunk data.  If the
     * image width is smaller than {@code maxWidth} or resizing is not supported,
     * returns {@code null}.
     */
private static byte[] getResizedImageData(MimePart mp, Integer maxWidth, Integer maxHeight) throws IOException, MessagingException {
    ImageReader reader = null;
    ImageWriter writer = null;
    InputStream in = null;
    if (maxWidth == null)
        maxWidth = LC.max_image_size_to_resize.intValue();
    if (maxHeight == null)
        maxHeight = LC.max_image_size_to_resize.intValue();
    try {
        // Get ImageReader for stream content.
        reader = ImageUtil.getImageReader(Mime.getContentType(mp), mp.getFileName());
        if (reader == null) {
            log.debug("No ImageReader available.");
            return null;
        }
        // Read message content.
        in = mp.getInputStream();
        reader.setInput(new MemoryCacheImageInputStream(in));
        BufferedImage img = reader.read(0);
        int width = img.getWidth(), height = img.getHeight();
        if (width <= maxWidth && height <= maxHeight) {
            log.debug("Image %dx%d is less than max %dx%d.  Not resizing.", width, height, maxWidth, maxHeight);
            return null;
        }
        // Resize.
        writer = ImageIO.getImageWriter(reader);
        if (writer == null) {
            log.debug("No ImageWriter available.");
            return null;
        }
        double ratio = Math.min((double) maxWidth / width, (double) maxHeight / height);
        width *= ratio;
        height *= ratio;
        BufferedImage small = ImageUtil.resize(img, width, height);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        writer.setOutput(new MemoryCacheImageOutputStream(out));
        writer.write(small);
        return out.toByteArray();
    } finally {
        ByteUtil.closeStream(in);
        if (reader != null) {
            reader.dispose();
        }
        if (writer != null) {
            writer.dispose();
        }
    }
}