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

Example 51 with ImageInputStream

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

the class ReadAsGrayTest method doTest.

private static void doTest(int type) throws IOException {
    BufferedImage src = createTestImage(type);
    File f = new File("test.jpg");
    if (!ImageIO.write(src, "jpg", f)) {
        throw new RuntimeException("Failed to write test image.");
    }
    ImageInputStream iis = ImageIO.createImageInputStream(f);
    ImageReader reader = ImageIO.getImageReaders(iis).next();
    reader.setInput(iis);
    Iterator<ImageTypeSpecifier> types = reader.getImageTypes(0);
    ImageTypeSpecifier srgb = null;
    ImageTypeSpecifier gray = null;
    // look for gray and srgb types
    while ((srgb == null || gray == null) && types.hasNext()) {
        ImageTypeSpecifier t = types.next();
        if (t.getColorModel().getColorSpace().getType() == TYPE_GRAY) {
            gray = t;
        }
        if (t.getColorModel().getColorSpace() == sRGB) {
            srgb = t;
        }
    }
    if (gray == null) {
        throw new RuntimeException("No gray type available.");
    }
    if (srgb == null) {
        throw new RuntimeException("No srgb type available.");
    }
    System.out.println("Read as GRAY...");
    testType(reader, gray, src);
    System.out.println("Read as sRGB...");
    testType(reader, srgb, src);
}

Example 52 with ImageInputStream

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

the class WBMPImageReaderSpi method canDecodeInput.

public boolean canDecodeInput(Object source) throws IOException {
    if (!(source instanceof ImageInputStream)) {
        return false;
    }
    ImageInputStream stream = (ImageInputStream) source;
    stream.mark();
    try {
        // TypeField
        int type = stream.readByte();
        int fixHeaderField = stream.readByte();
        // check WBMP "header"
        if (type != 0 || fixHeaderField != 0) {
            // while WBMP reader does not support ext WBMP headers
            return false;
        }
        int width = ReaderUtil.readMultiByteInteger(stream);
        int height = ReaderUtil.readMultiByteInteger(stream);
        // check image dimension
        if (width <= 0 || height <= 0) {
            return false;
        }
        long dataLength = stream.length();
        if (dataLength == -1) {
            // let's reject images with dimension above the limit.
            return (width < MAX_WBMP_WIDTH) && (height < MAX_WBMP_HEIGHT);
        }
        dataLength -= stream.getStreamPosition();
        long scanSize = (width / 8) + ((width % 8) == 0 ? 0 : 1);
        return (dataLength == scanSize * height);
    } finally {
        stream.reset();
    }
}

Example 53 with ImageInputStream

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

the class ImageStreamFromRAF method main.

public static void main(String[] args) {
    try {
        File f = new File("ImageInputStreamFromRAF.tmp");
        RandomAccessFile raf = new RandomAccessFile(f, "rw");
        ImageInputStream istream = ImageIO.createImageInputStream(raf);
        ImageOutputStream ostream = ImageIO.createImageOutputStream(raf);
        f.delete();
        if (istream == null) {
            throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) returned null!");
        }
        if (ostream == null) {
            throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) returned null!");
        }
        if (!(istream instanceof FileImageInputStream)) {
            throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) did not return a FileImageInputStream!");
        }
        if (!(ostream instanceof FileImageOutputStream)) {
            throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) did not return a FileImageOutputStream!");
        }
    } catch (IOException ioe) {
        throw new RuntimeException("Unexpected IOException: " + ioe);
    }
}

Example 54 with ImageInputStream

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

the class ConcurrentReadingTest method run.

public void run() {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(file);
        r.setInput(iis);
        ImageReadParam p = r.getDefaultReadParam();
        Thread.sleep(70);
        BufferedImage res = r.read(0, p);
        Thread.sleep(70);
        r.reset();
    } catch (IllegalStateException e) {
        System.out.println(e);
    } catch (IOException e) {
        System.out.println(e);
    } catch (Throwable e) {
        // Unexpected exception. Test failed.
        throw new RuntimeException("Test failed.", e);
    } finally {
        synchronized (lock) {
            completeCount++;
        }
    }
}

Example 55 with ImageInputStream

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

the class ConcurrentReadingTest method main.

public static void main(String[] args) throws Exception {
    createTestFile();
    ImageInputStream iis = ImageIO.createImageInputStream(file);
    r = ImageIO.getImageReaders(iis).next();
    iis.close();
    for (int i = 0; i < MAX_THREADS; i++) {
        (new ConcurrentReadingTest()).start();
    }
    // wait for started threads
    boolean needWait = true;
    while (needWait) {
        Thread.sleep(100);
        synchronized (lock) {
            needWait = completeCount < MAX_THREADS;
        }
    }
    System.out.println("Test PASSED.");
}