Ejemplo n.º 1
0
  @Override
  protected void initializeRasterReader(
      int width, int height, int bitsPerSample, RasterReader rasterReader) {
    IFD rasterIFD = ((TIFFMetadataSupport) metadata).getRasterIFD();
    rasterReader.setWidth(width);
    rasterReader.setHeight(height);
    rasterReader.setBitsPerSample(bitsPerSample);
    //		if (rasterReader instanceof Gray12RasterReader) {
    //			IFD primaryIFD = ((TIFFMetadataSupport) metadata).getPrimaryIFD();
    //			((Gray12RasterReader) rasterReader).setStripsOffset(primaryIFD.getStripOffsets());
    //		}

    if ((rasterIFD != null) && rasterIFD.isCompressionAvailable()) {
      rasterReader.setCompression(rasterIFD.getCompression().intValue());
    }

    if ((rasterIFD != null) && rasterIFD.isStripByteCountsAvailable()) {
      rasterReader.setStripByteCount(rasterIFD.getStripByteCounts());
    }

    if ((rasterIFD != null) && rasterIFD.isTileWidthAvailable()) {
      int imageWidth = rasterIFD.getImageWidth();
      int imageLength = rasterIFD.getImageLength();
      int tileWidth = rasterIFD.getTileWidth();
      int tileLength = rasterIFD.getTileLength();
      rasterReader.setTileWidth(tileWidth);
      rasterReader.setTileHeight(tileLength);
      rasterReader.setTilesAcross((imageWidth + tileWidth - 1) / tileWidth);
      rasterReader.setTilesDown((imageLength + tileLength - 1) / tileLength);
      rasterReader.setTileOffsets(rasterIFD.getTileOffsets());
      // int[] tileByteCounts = imageIFD.getTileByteCounts();
    }
  }
Ejemplo n.º 2
0
  @Override
  protected WritableRaster loadRAWRaster() throws IOException {
    final IFD rasterIFD = ((TIFFMetadataSupport) metadata).getPrimaryIFD();
    final RasterReader rasterReader = new Grey12RasterReader();
    final int width = rasterIFD.getImageWidth();
    final int height = rasterIFD.getImageLength();
    final int bitsPerSample = rasterIFD.getBitsPerSample()[0];
    initializeRasterReader(width, height, bitsPerSample, rasterReader);

    if (!rasterIFD.isTileWidthAvailable()) {
      iis.seek(
          rasterIFD.getStripOffsets()); // FIXME: move, it's responsibility of the rreader to seek
    }

    final WritableRaster raster = rasterReader.loadRaster(iis, this);

    return raster;
  }