コード例 #1
0
  public synchronized Raster getTile(int tileX, int tileY) {
    if (tileX != 0 || tileY != 0) {
      throw new IllegalArgumentException(JaiI18N.getString("JPEGImageDecoder4"));
    }

    return image.getTile(0, 0);
  }
コード例 #2
0
  /**
   * Construct a JPEGmage.
   *
   * @param stream The JPEG InputStream.
   */
  public JPEGImage(InputStream stream) {
    com.sun.image.codec.jpeg.JPEGImageDecoder decoder =
        com.sun.image.codec.jpeg.JPEGCodec.createJPEGDecoder(stream);
    try {
      // decodeAsBufferedImage performs default color conversions
      image = decoder.decodeAsBufferedImage();
    } catch (ImageFormatException e) {
      throw new RuntimeException(JaiI18N.getString("JPEGImageDecoder1"));
    } catch (IOException e) {
      throw new RuntimeException(JaiI18N.getString("JPEGImageDecoder2"));
    }

    minX = 0;
    minY = 0;
    tileWidth = width = image.getWidth();
    tileHeight = height = image.getHeight();

    // Force image to have a ComponentSampleModel
    // since SinglePixelPackedSampleModels are not working
    if (!(image.getSampleModel() instanceof ComponentSampleModel)) {
      int type = -1;
      int numBands = image.getSampleModel().getNumBands();
      if (numBands == 1) {
        type = BufferedImage.TYPE_BYTE_GRAY;
      } else if (numBands == 3) {
        type = BufferedImage.TYPE_3BYTE_BGR;
      } else if (numBands == 4) {
        type = BufferedImage.TYPE_4BYTE_ABGR;
      } else {
        throw new RuntimeException(JaiI18N.getString("JPEGImageDecoder3"));
      }

      BufferedImage bi = new BufferedImage(width, height, type);
      Graphics2D g = bi.createGraphics();
      g.drawRenderedImage(image, new AffineTransform());
      image = bi;
    }

    sampleModel = image.getSampleModel();
    colorModel = image.getColorModel();
  }
コード例 #3
0
 public RenderedImage decodeAsRenderedImage(int page) throws IOException {
   if (page != 0) {
     throw new IOException(JaiI18N.getString("JPEGImageDecoder0"));
   }
   return new JPEGImage(input);
 }