--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFRenderedImage.java Mon Nov 23 12:26:12 2015 -0800
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.imageio.plugins.tiff;
+
+import java.awt.Rectangle;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.Raster;
+import java.awt.image.RenderedImage;
+import java.awt.image.SampleModel;
+import java.awt.image.WritableRaster;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Vector;
+import javax.imageio.ImageReadParam;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.plugins.tiff.TIFFImageReadParam;
+import javax.imageio.plugins.tiff.TIFFTagSet;
+
+public class TIFFRenderedImage implements RenderedImage {
+
+ private TIFFImageReader reader;
+ private int imageIndex;
+ private ImageReadParam tileParam;
+
+ private int subsampleX;
+ private int subsampleY;
+
+ private boolean isSubsampling;
+
+ private int width;
+ private int height;
+ private int tileWidth;
+ private int tileHeight;
+
+ private ImageTypeSpecifier its;
+
+ public TIFFRenderedImage(TIFFImageReader reader,
+ int imageIndex,
+ ImageReadParam readParam,
+ int width, int height) throws IOException {
+ this.reader = reader;
+ this.imageIndex = imageIndex;
+ this.tileParam = cloneImageReadParam(readParam, false);
+
+ this.subsampleX = tileParam.getSourceXSubsampling();
+ this.subsampleY = tileParam.getSourceYSubsampling();
+
+ this.isSubsampling = this.subsampleX != 1 || this.subsampleY != 1;
+
+ this.width = width/subsampleX;
+ this.height = height/subsampleY;
+
+ // If subsampling is being used, we may not match the
+ // true tile grid exactly, but everything should still work
+ this.tileWidth = reader.getTileWidth(imageIndex)/subsampleX;
+ this.tileHeight = reader.getTileHeight(imageIndex)/subsampleY;
+
+ Iterator<ImageTypeSpecifier> iter = reader.getImageTypes(imageIndex);
+ this.its = iter.next();
+ tileParam.setDestinationType(its);
+ }
+
+ /**
+ * 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());
+
+ if (param instanceof TIFFImageReadParam && copyTagSets) {
+ // Copy the settings from the input parameter.
+ TIFFImageReadParam tparam = (TIFFImageReadParam) param;
+
+ List<TIFFTagSet> tagSets = tparam.getAllowedTagSets();
+ if (tagSets != null) {
+ Iterator<TIFFTagSet> tagSetIter = tagSets.iterator();
+ if (tagSetIter != null) {
+ while (tagSetIter.hasNext()) {
+ TIFFTagSet tagSet = tagSetIter.next();
+ newParam.addAllowedTagSet(tagSet);
+ }
+ }
+ }
+ }
+
+ return newParam;
+ }
+
+ public Vector<RenderedImage> getSources() {
+ return null;
+ }
+
+ public Object getProperty(String name) {
+ return java.awt.Image.UndefinedProperty;
+ }
+
+ public String[] getPropertyNames() {
+ return null;
+ }
+
+ public ColorModel getColorModel() {
+ return its.getColorModel();
+ }
+
+ public SampleModel getSampleModel() {
+ return its.getSampleModel();
+ }
+
+ public int getWidth() {
+ return width;
+ }
+
+ public int getHeight() {
+ return height;
+ }
+
+ public int getMinX() {
+ return 0;
+ }
+
+ public int getMinY() {
+ return 0;
+ }
+
+ public int getNumXTiles() {
+ return (width + tileWidth - 1)/tileWidth;
+ }
+
+ public int getNumYTiles() {
+ return (height + tileHeight - 1)/tileHeight;
+ }
+
+ public int getMinTileX() {
+ return 0;
+ }
+
+ public int getMinTileY() {
+ return 0;
+ }
+
+ public int getTileWidth() {
+ return tileWidth;
+ }
+
+ public int getTileHeight() {
+ return tileHeight;
+ }
+
+ public int getTileGridXOffset() {
+ return 0;
+ }
+
+ public int getTileGridYOffset() {
+ return 0;
+ }
+
+ public Raster getTile(int tileX, int tileY) {
+ Rectangle tileRect = new Rectangle(tileX*tileWidth,
+ tileY*tileHeight,
+ tileWidth,
+ tileHeight);
+ return getData(tileRect);
+ }
+
+ public Raster getData() {
+ return read(new Rectangle(0, 0, getWidth(), getHeight()));
+ }
+
+ public Raster getData(Rectangle rect) {
+ return read(rect);
+ }
+
+ // This method needs to be synchronized as it updates the instance
+ // variable 'tileParam'.
+ public synchronized WritableRaster read(Rectangle rect) {
+ tileParam.setSourceRegion(isSubsampling ?
+ new Rectangle(subsampleX*rect.x,
+ subsampleY*rect.y,
+ subsampleX*rect.width,
+ subsampleY*rect.height) :
+ rect);
+
+ try {
+ BufferedImage bi = reader.read(imageIndex, tileParam);
+ WritableRaster ras = bi.getRaster();
+ return ras.createWritableChild(0, 0,
+ ras.getWidth(), ras.getHeight(),
+ rect.x, rect.y,
+ null);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public WritableRaster copyData(WritableRaster raster) {
+ if (raster == null) {
+ return read(new Rectangle(0, 0, getWidth(), getHeight()));
+ } else {
+ Raster src = read(raster.getBounds());
+ raster.setRect(src);
+ return raster;
+ }
+ }
+}