Java Code Examples for javax.imageio.ImageIO#getImageWriters()

The following examples show how to use javax.imageio.ImageIO#getImageWriters() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: CanEncodeShort.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) {
    for (int i = 0; i < types.length; i++) {
        BufferedImage img = new BufferedImage(32, 32, types[i]);

        ImageTypeSpecifier spec =
            ImageTypeSpecifier.createFromRenderedImage(img);

        Iterator writers = ImageIO.getImageWriters(spec, "png");

        if (!writers.hasNext()) {
            throw new RuntimeException("Test failed: " +
                                       "no PNG writer found for type " +
                                       typeNames[i]);
        }
    }
}
Example 2
Source File: CanEncodeShort.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
public static void main(String[] args) {
    for (int i = 0; i < types.length; i++) {
        BufferedImage img = new BufferedImage(32, 32, types[i]);

        ImageTypeSpecifier spec =
            ImageTypeSpecifier.createFromRenderedImage(img);

        Iterator writers = ImageIO.getImageWriters(spec, "png");

        if (!writers.hasNext()) {
            throw new RuntimeException("Test failed: " +
                                       "no PNG writer found for type " +
                                       typeNames[i]);
        }
    }
}
Example 3
Source File: CanEncodeIndexed.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) {
    BufferedImage img = new BufferedImage(32, 32,
                                          BufferedImage.TYPE_BYTE_INDEXED);

    ImageTypeSpecifier spec =
        ImageTypeSpecifier.createFromRenderedImage(img);

    Iterator writers = ImageIO.getImageWriters(spec, "jpeg");

    if (!writers.hasNext()) {
        throw new RuntimeException("Test failed: " +
                                   "no JPEG writer found for " +
                                   "image with IndexColorModel");
    }
}
Example 4
Source File: BitDepth.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
private File testWriteRGB(String format, int type) throws IOException {

        BufferedImage bi = new BufferedImage(width, height, type);
        Graphics2D g = bi.createGraphics();

        Color white = new Color(255, 255, 255);
        Color red = new Color(255, 0, 0);
        Color green = new Color(0, 255, 0);
        Color blue = new Color(0, 0, 255);

        g.setColor(white);
        g.fillRect(0, 0, width, height);
        g.setColor(red);
        g.fillRect(10, 10, 20, 20);
        g.setColor(green);
        g.fillRect(30, 30, 20, 20);
        g.setColor(blue);
        g.fillRect(50, 50, 20, 20);

        ImageTypeSpecifier spec = new ImageTypeSpecifier(bi);
        Iterator<ImageWriter> writers = ImageIO.getImageWriters(spec, format);
        File file = new File("BitDepth_" + biTypeNames[type] + "." + format);
        if (!writers.hasNext()) {
            System.out.println("\tNo writers available for type " + biTypeNames[type]
                               + " BufferedImage!");
        } else {
            ImageWriter writer = writers.next();
            try (ImageOutputStream out = ImageIO.createImageOutputStream(file)) {
                writer.setOutput(out);
                writer.write(bi);
            } catch (Exception e) {
                System.out.println("\tCan't write a type " +  biTypeNames[type]
                           + " BufferedImage!");
                return null;
            }
        }

        return file;
    }
Example 5
Source File: CanEncodeIndexed.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public static void main(String[] args) {
    BufferedImage img = new BufferedImage(32, 32,
                                          BufferedImage.TYPE_BYTE_INDEXED);

    ImageTypeSpecifier spec =
        ImageTypeSpecifier.createFromRenderedImage(img);

    Iterator writers = ImageIO.getImageWriters(spec, "jpeg");

    if (!writers.hasNext()) {
        throw new RuntimeException("Test failed: " +
                                   "no JPEG writer found for " +
                                   "image with IndexColorModel");
    }
}