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

Example 46 with ImageOutputStream

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

the class AnimationTest method initWriter.

private ImageWriter initWriter() throws IOException {
    ImageOutputStream ios = ImageIO.createImageOutputStream(new File(fname));
    writer = ImageIO.getImageWritersByFormatName("GIF").next();
    writer.setOutput(ios);
    return writer;
}

Example 47 with ImageOutputStream

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

the class WritingColorChangeTest method doModification.

private BufferedImage doModification(BufferedImage src) {
    try {
        BufferedImage dst = null;
        if (!writer.getOriginatingProvider().canEncodeImage(src)) {
            throw new RuntimeException(writingFormat + " writer does not support the image type " + type);
        }
        System.out.println(writingFormat + " writer claims it can encode the image " + type);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
        writer.setOutput(ios);
        writer.write(src);
        ios.close();
        baos.close();
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        dst = ImageIO.read(bais);
        return dst;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 48 with ImageOutputStream

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

the class EmbeddedFormatTest method doTest.

public void doTest(String compression, int bi_type) throws IOException {
    System.out.println("Test " + compression + " on " + getImageTypeName(bi_type));
    BufferedImage src = createTestImage(bi_type);
    writer.reset();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
    writer.setOutput(ios);
    ImageWriteParam wparam = prepareWriteParam(compression);
    writer.write(null, new IIOImage(src, null, null), wparam);
    ios.flush();
    ios.close();
    // read result
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ImageInputStream iis = ImageIO.createImageInputStream(bais);
    reader.reset();
    reader.setInput(iis);
    BufferedImage dst = reader.read(0);
    checkResult(dst);
}

Example 49 with ImageOutputStream

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

the class RasterWithMinXTest method main.

public static void main(String[] args) {
    String format = "jpeg";
    // Set output file.
    ImageOutputStream output = new MemoryCacheImageOutputStream(new ByteArrayOutputStream());
    // Create image.
    BufferedImage bi = new BufferedImage(256, 256, BufferedImage.TYPE_3BYTE_BGR);
    // Populate image.
    int[] rgbArray = new int[256];
    for (int i = 0; i < 256; i++) {
        Arrays.fill(rgbArray, i);
        bi.setRGB(0, i, 256, 1, rgbArray, 0, 256);
    }
    // create translated raster in order to get non-zero minX and minY
    WritableRaster r = (WritableRaster) bi.getRaster().createTranslatedChild(64, 64);
    Iterator i = ImageIO.getImageWritersByFormatName(format);
    ImageWriter iw = null;
    while (i.hasNext() && iw == null) {
        Object o = i.next();
        if (o instanceof com.sun.imageio.plugins.jpeg.JPEGImageWriter) {
            iw = (ImageWriter) o;
        }
    }
    if (iw == null) {
        throw new RuntimeException("No available image writer");
    }
    ImageWriteParam iwp = iw.getDefaultWriteParam();
    IIOMetadata metadata = iw.getDefaultImageMetadata(new ImageTypeSpecifier(bi.getColorModel(), r.getSampleModel()), iwp);
    IIOImage img = new IIOImage(r, null, metadata);
    iw.setOutput(output);
    try {
        iw.write(img);
    } catch (RasterFormatException e) {
        e.printStackTrace();
        throw new RuntimeException("RasterException occurs. Test Failed!");
    } catch (Exception ex) {
        ex.printStackTrace();
        throw new RuntimeException("Unexpected Exception");
    }
    // test case of theImageWriteParam with non-null sourceRegion
    iwp.setSourceRegion(new Rectangle(32, 32, 192, 192));
    metadata = iw.getDefaultImageMetadata(new ImageTypeSpecifier(bi.getColorModel(), r.getSampleModel()), iwp);
    try {
        iw.write(metadata, img, iwp);
    } catch (RasterFormatException e) {
        e.printStackTrace();
        throw new RuntimeException("SetSourceRegion causes the RasterException. Test Failed!");
    } catch (Exception ex) {
        ex.printStackTrace();
        throw new RuntimeException("Unexpected Exception");
    }
}

Example 50 with ImageOutputStream

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

the class UshortGrayTest method main.

public static void main(String[] args) {
    Iterator iter;
    BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_USHORT_GRAY);
    // Part 1: ensure that JPEGImageWriter throws an exception if it
    // encounters an image with 16-bit samples
    ImageWriter writer = null;
    iter = ImageIO.getImageWritersByFormatName("jpeg");
    if (iter.hasNext()) {
        writer = (ImageWriter) iter.next();
    } else {
        throw new RuntimeException("No JPEG reader found");
    }
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageOutputStream ios = null;
    boolean exceptionThrown = false;
    try {
        ios = ImageIO.createImageOutputStream(baos);
    } catch (IOException ioe) {
        throw new RuntimeException("Could not create ImageOutputStream");
    }
    try {
        writer.setOutput(ios);
        writer.write(bi);
    } catch (IOException ioe) {
        exceptionThrown = true;
    }
    if (!exceptionThrown) {
        throw new RuntimeException("JPEG writer should not be able to " + "write USHORT_GRAY images");
    }
    // Part 2: ensure that JPEGImageWriterSpi.canEncodeImage() returns
    // false for images with 16-bit samples
    ImageTypeSpecifier its = ImageTypeSpecifier.createFromRenderedImage(bi);
    iter = ImageIO.getImageWriters(its, "jpeg");
    if (iter.hasNext()) {
        throw new RuntimeException("JPEG writer should not be available" + " for USHORT_GRAY images");
    }
}