/** * Creates a copy of <code>param</code>. The source subsampling and and bands settings and the * destination bands and offset settings are copied. If <code>param</code> is a <code> * TIFFImageReadParam</code> then the <code>TIFFDecompressor</code> and <code>TIFFColorConverter * </code> settings are also copied; otherwise they are explicitly set to <code>null</code>. * * @param param the parameters to be copied. * @param copyTagSets whether the <code>TIFFTagSet</code> settings should be copied if set. * @return copied parameters. */ private ImageReadParam cloneImageReadParam(ImageReadParam param, boolean copyTagSets) { // Create a new TIFFImageReadParam. TIFFImageReadParam newParam = new TIFFImageReadParam(); // Copy the basic settings. newParam.setSourceSubsampling( param.getSourceXSubsampling(), param.getSourceYSubsampling(), param.getSubsamplingXOffset(), param.getSubsamplingYOffset()); newParam.setSourceBands(param.getSourceBands()); newParam.setDestinationBands(param.getDestinationBands()); newParam.setDestinationOffset(param.getDestinationOffset()); // Set the decompressor and color converter. if (param instanceof TIFFImageReadParam) { // Copy the settings from the input parameter. TIFFImageReadParam tparam = (TIFFImageReadParam) param; newParam.setTIFFDecompressor(tparam.getTIFFDecompressor()); newParam.setColorConverter(tparam.getColorConverter()); if (copyTagSets) { List tagSets = tparam.getAllowedTagSets(); if (tagSets != null) { Iterator tagSetIter = tagSets.iterator(); if (tagSetIter != null) { while (tagSetIter.hasNext()) { TIFFTagSet tagSet = (TIFFTagSet) tagSetIter.next(); newParam.addAllowedTagSet(tagSet); } } } } } else { // Set the decompressor and color converter to null. newParam.setTIFFDecompressor(null); newParam.setColorConverter(null); } return newParam; }
public RawRenderedImage( RawImageInputStream iis, RawImageReader reader, ImageReadParam param, int imageIndex) throws IOException { this.iis = iis; this.reader = reader; this.param = param; this.imageIndex = imageIndex; this.position = iis.getImageOffset(imageIndex); this.originalDimension = iis.getImageDimension(imageIndex); ImageTypeSpecifier type = iis.getImageType(); sampleModel = originalSampleModel = type.getSampleModel(); colorModel = type.getColorModel(); // If the destination band is set used it sourceBands = (param == null) ? null : param.getSourceBands(); if (sourceBands == null) { nComp = originalSampleModel.getNumBands(); sourceBands = new int[nComp]; for (int i = 0; i < nComp; i++) sourceBands[i] = i; } else { sampleModel = originalSampleModel.createSubsetSampleModel(sourceBands); colorModel = ImageUtil.createColorModel(null, sampleModel); } nComp = sourceBands.length; destinationBands = (param == null) ? null : param.getDestinationBands(); if (destinationBands == null) { destinationBands = new int[nComp]; for (int i = 0; i < nComp; i++) destinationBands[i] = i; } Dimension dim = iis.getImageDimension(imageIndex); this.width = dim.width; this.height = dim.height; Rectangle sourceRegion = new Rectangle(0, 0, this.width, this.height); originalRegion = (Rectangle) sourceRegion.clone(); destinationRegion = (Rectangle) sourceRegion.clone(); if (param != null) { RawImageReader.computeRegionsWrapper( param, this.width, this.height, param.getDestination(), sourceRegion, destinationRegion); scaleX = param.getSourceXSubsampling(); scaleY = param.getSourceYSubsampling(); xOffset = param.getSubsamplingXOffset(); yOffset = param.getSubsamplingYOffset(); } sourceOrigin = new Point(sourceRegion.x, sourceRegion.y); if (!destinationRegion.equals(sourceRegion)) noTransform = false; this.tileDataSize = ImageUtil.getTileSize(originalSampleModel); this.tileWidth = originalSampleModel.getWidth(); this.tileHeight = originalSampleModel.getHeight(); this.tileGridXOffset = destinationRegion.x; this.tileGridYOffset = destinationRegion.y; this.originalNumXTiles = getNumXTiles(); this.width = destinationRegion.width; this.height = destinationRegion.height; this.minX = destinationRegion.x; this.minY = destinationRegion.y; sampleModel = sampleModel.createCompatibleSampleModel(tileWidth, tileHeight); maxXTile = originalDimension.width / tileWidth; maxYTile = originalDimension.height / tileHeight; }