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

Example 26 with ImageWriter

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

the class WriteMetadataTest method main.

public static void main(String[] args) {
    ImageWriter w = ImageIO.getImageWritersByFormatName(format).next();
    if (w == null) {
        throw new RuntimeException("No available writers for format " + format);
    }
    ImageWriteParam p = w.getDefaultWriteParam();
    ImageTypeSpecifier t = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
    IIOMetadata m = w.getDefaultImageMetadata(t, p);
    System.out.println("Default image metadata is " + m);
    testWritableMetadata(m);
    IIOMetadata sm = w.getDefaultStreamMetadata(p);
    System.out.println("Default stream metadata is " + sm);
    testWritableMetadata(sm);
}

Example 27 with ImageWriter

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

the class ITXtTest method writeTo.

private static void writeTo(File f, ITXtTest t) {
    BufferedImage src = createBufferedImage();
    try {
        ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(f);
        ImageTypeSpecifier imageTypeSpecifier = new ImageTypeSpecifier(src);
        ImageWriter imageWriter = ImageIO.getImageWritersByFormatName("PNG").next();
        imageWriter.setOutput(imageOutputStream);
        IIOMetadata m = imageWriter.getDefaultImageMetadata(imageTypeSpecifier, null);
        String format = m.getNativeMetadataFormatName();
        Node root = m.getAsTree(format);
        IIOMetadataNode iTXt = t.getNode();
        root.appendChild(iTXt);
        m.setFromTree(format, root);
        imageWriter.write(new IIOImage(src, null, m));
        imageOutputStream.close();
        System.out.println("Writing done.");
    } catch (Throwable e) {
        throw new RuntimeException("Writing test failed.", e);
    }
}

Example 28 with ImageWriter

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

the class ItxtUtf8Test method runTest.

public static void runTest(boolean dump, boolean truncate) throws Exception {
    String format = "javax_imageio_png_1.0";
    BufferedImage img = new BufferedImage(16, 16, BufferedImage.TYPE_INT_RGB);
    ImageWriter iw = ImageIO.getImageWritersByMIMEType("image/png").next();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageOutputStream ios = new MemoryCacheImageOutputStream(os);
    iw.setOutput(ios);
    IIOMetadata meta = iw.getDefaultImageMetadata(new ImageTypeSpecifier(img), null);
    DOMImplementationRegistry registry;
    registry = DOMImplementationRegistry.newInstance();
    DOMImplementation impl = registry.getDOMImplementation("XML 3.0");
    Document doc = impl.createDocument(null, format, null);
    Element root, itxt, entry;
    root = doc.getDocumentElement();
    root.appendChild(itxt = doc.createElement("iTXt"));
    itxt.appendChild(entry = doc.createElement("iTXtEntry"));
    entry.setAttribute("keyword", "verbatim");
    entry.setAttribute("compressionFlag", "false");
    entry.setAttribute("compressionMethod", "0");
    entry.setAttribute("languageTag", "x-circled");
    entry.setAttribute("translatedKeyword", VERBATIM);
    entry.setAttribute("text", TEXT);
    itxt.appendChild(entry = doc.createElement("iTXtEntry"));
    entry.setAttribute("keyword", "compressed");
    entry.setAttribute("compressionFlag", "true");
    entry.setAttribute("compressionMethod", "0");
    entry.setAttribute("languageTag", "x-circled");
    entry.setAttribute("translatedKeyword", COMPRESSED);
    entry.setAttribute("text", TEXT);
    meta.mergeTree(format, root);
    iw.write(new IIOImage(img, null, meta));
    iw.dispose();
    byte[] bytes = os.toByteArray();
    if (dump)
        System.out.write(bytes);
    if (findBytes(VBYTES, bytes) < 0)
        throw new AssertionError("verbatim block not found");
    if (findBytes(CBYTES, bytes) < 0)
        throw new AssertionError("compressed block not found");
    int length = bytes.length;
    if (truncate)
        length = findBytes(VBYTES, bytes) + 32;
    ImageReader ir = ImageIO.getImageReader(iw);
    ByteArrayInputStream is = new ByteArrayInputStream(bytes, 0, length);
    ImageInputStream iis = new MemoryCacheImageInputStream(is);
    ir.setInput(iis);
    meta = ir.getImageMetadata(0);
    Node node = meta.getAsTree(format);
    for (node = node.getFirstChild(); !"iTXt".equals(node.getNodeName()); node = node.getNextSibling()) ;
    boolean verbatimSeen = false, compressedSeen = false;
    for (node = node.getFirstChild(); node != null; node = node.getNextSibling()) {
        entry = (Element) node;
        String keyword = entry.getAttribute("keyword");
        String translatedKeyword = entry.getAttribute("translatedKeyword");
        String text = entry.getAttribute("text");
        if ("verbatim".equals(keyword)) {
            if (verbatimSeen)
                throw new AssertionError("Duplicate");
            verbatimSeen = true;
            if (!VERBATIM.equals(translatedKeyword))
                throw new AssertionError("Wrong translated keyword");
            if (!TEXT.equals(text))
                throw new AssertionError("Wrong text");
        } else if ("compressed".equals(keyword)) {
            if (compressedSeen)
                throw new AssertionError("Duplicate");
            compressedSeen = true;
            if (!COMPRESSED.equals(translatedKeyword))
                throw new AssertionError("Wrong translated keyword");
            if (!TEXT.equals(text))
                throw new AssertionError("Wrong text");
        } else {
            throw new AssertionError("Unexpected keyword");
        }
    }
    if (!(verbatimSeen && compressedSeen))
        throw new AssertionError("Missing chunk");
}

Example 29 with ImageWriter

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

the class CrashAfterDispose method main.

public static void main(String[] args) throws IOException {
    InputStream bais = new ByteArrayInputStream(new byte[100]);
    ImageInputStream iis = ImageIO.createImageInputStream(bais);
    // find the JPEG reader
    ImageReader reader = null;
    Iterator readers = ImageIO.getImageReadersByFormatName("jpeg");
    if (readers.hasNext()) {
        reader = (ImageReader) readers.next();
    } else {
        throw new RuntimeException("Unable to find a reader!");
    }
    // dispose the reader, then poke and prod it... the reader should
    // throw exceptions (which will be caught by this test), but it
    // should not crash the VM
    reader.dispose();
    try {
        reader.setInput(iis);
    } catch (IllegalStateException e) {
    }
    try {
        reader.read(0);
    } catch (IllegalStateException e) {
    }
    try {
        reader.abort();
    } catch (IllegalStateException e) {
    }
    try {
        reader.reset();
    } catch (IllegalStateException e) {
    }
    try {
        reader.dispose();
    } catch (IllegalStateException e) {
    }
    // find the JPEG writer
    ImageWriter writer = null;
    Iterator writers = ImageIO.getImageWritersByFormatName("jpeg");
    if (writers.hasNext()) {
        writer = (ImageWriter) writers.next();
    } else {
        throw new RuntimeException("Unable to find a writer!");
    }
    // set up output stream
    OutputStream baos = new ByteArrayOutputStream();
    ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
    BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
    // dispose the writer, then poke and prod it... the writer should
    // throw exceptions (which will be caught by this test), but it
    // should not crash the VM
    writer.dispose();
    try {
        writer.setOutput(ios);
    } catch (IllegalStateException e) {
    }
    try {
        writer.write(bi);
    } catch (IllegalStateException e) {
    }
    try {
        writer.abort();
    } catch (IllegalStateException e) {
    }
    try {
        writer.reset();
    } catch (IllegalStateException e) {
    }
    try {
        writer.dispose();
    } catch (IllegalStateException e) {
    }
}

Example 30 with ImageWriter

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

the class JPEGsNotAcceleratedTest method writeTestImage.

public static void writeTestImage(String fileName) {
    BufferedImage bi = new BufferedImage(TEST_W, TEST_H, BufferedImage.TYPE_INT_RGB);
    Graphics g = bi.getGraphics();
    g.setColor(new Color(testRGB));
    g.fillRect(0, 0, TEST_W, TEST_H);
    try {
        System.err.printf("Writing %s\n", fileName);
        if (lowCompression) {
            ImageWriter iw = (ImageWriter) ImageIO.getImageWritersBySuffix("jpeg").next();
            if (iw == null) {
                throw new RuntimeException("No available image writer for " + "jpeg " + " Test failed.");
            }
            File file = new File(fileName);
            ImageOutputStream ios = ImageIO.createImageOutputStream(file);
            iw.setOutput(ios);
            ImageWriteParam param = iw.getDefaultWriteParam();
            param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            param.setCompressionQuality(1);
            IIOImage iioImg = new IIOImage(bi, null, null);
            iw.write(null, iioImg, param);
        } else {
            ImageIO.write(bi, "jpeg", new File(fileName));
        }
    } catch (IOException e) {
        System.err.println("Error " + e + " when writing file: " + fileName);
        throw new RuntimeException(e);
    }
}