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97 lines
4.9 KiB
97 lines
4.9 KiB
/* |
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* Copyright (c) 2001 Sun Microsystems, Inc. All Rights Reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* -Redistributions of source code must retain the above copyright notice, this |
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* list of conditions and the following disclaimer. |
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* |
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* -Redistribution in binary form must reproduct the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* Neither the name of Sun Microsystems, Inc. or the names of contributors may |
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* be used to endorse or promote products derived from this software without |
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* specific prior written permission. |
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* |
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* This software is provided "AS IS," without a warranty of any kind. ALL |
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* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY |
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* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR |
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* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE |
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* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING |
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* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS |
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* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, |
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* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER |
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* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF |
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* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGES. |
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* |
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* You acknowledge that Software is not designed,licensed or intended for use in |
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* the design, construction, operation or maintenance of any nuclear facility. |
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*/ |
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package com.fr.third.JAI; |
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import java.awt.image.RenderedImage; |
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import java.io.IOException; |
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/** |
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* A baseline TIFF reader. The reader has some functionality in addition to |
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* the baseline specifications for Bilevel images, for which the group 3 and |
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* group 4 decompression schemes have been implemented. Support for LZW |
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* decompression has also been added. Support for Horizontal differencing |
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* predictor decoding is also included, when used with LZW compression. |
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* However, this support is limited to data with bitsPerSample value of 8. |
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* When reading in RGB images, support for alpha and extraSamples being |
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* present has been added. Support for reading in images with 16 bit samples |
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* has been added. Support for the SampleFormat tag (signed samples as well |
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* as floating-point samples) has also been added. In all other cases, support |
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* is limited to Baseline specifications. |
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* |
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* |
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*/ |
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public class TIFFImageDecoder extends ImageDecoderImpl { |
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// All the TIFF tags that we care about |
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public static final int TIFF_IMAGE_WIDTH = 256; |
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public static final int TIFF_IMAGE_LENGTH = 257; |
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public static final int TIFF_BITS_PER_SAMPLE = 258; |
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public static final int TIFF_COMPRESSION = 259; |
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public static final int TIFF_PHOTOMETRIC_INTERPRETATION = 262; |
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public static final int TIFF_FILL_ORDER = 266; |
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public static final int TIFF_STRIP_OFFSETS = 273; |
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public static final int TIFF_SAMPLES_PER_PIXEL = 277; |
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public static final int TIFF_ROWS_PER_STRIP = 278; |
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public static final int TIFF_STRIP_BYTE_COUNTS = 279; |
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public static final int TIFF_X_RESOLUTION = 282; |
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public static final int TIFF_Y_RESOLUTION = 283; |
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public static final int TIFF_PLANAR_CONFIGURATION = 284; |
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public static final int TIFF_T4_OPTIONS = 292; |
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public static final int TIFF_T6_OPTIONS = 293; |
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public static final int TIFF_RESOLUTION_UNIT = 296; |
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public static final int TIFF_PREDICTOR = 317; |
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public static final int TIFF_COLORMAP = 320; |
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public static final int TIFF_TILE_WIDTH = 322; |
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public static final int TIFF_TILE_LENGTH = 323; |
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public static final int TIFF_TILE_OFFSETS = 324; |
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public static final int TIFF_TILE_BYTE_COUNTS = 325; |
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public static final int TIFF_EXTRA_SAMPLES = 338; |
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public static final int TIFF_SAMPLE_FORMAT = 339; |
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public static final int TIFF_S_MIN_SAMPLE_VALUE = 340; |
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public static final int TIFF_S_MAX_SAMPLE_VALUE = 341; |
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public TIFFImageDecoder(SeekableStream input, |
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ImageDecodeParam param) { |
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super(input, param); |
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} |
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public int getNumPages() throws IOException { |
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return TIFFDirectory.getNumDirectories(input); |
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} |
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public RenderedImage decodeAsRenderedImage(int page) throws IOException { |
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if ((page < 0) || (page >= getNumPages())) { |
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throw new IOException(JaiI18N.getString("TIFFImageDecoder0")); |
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} |
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return new TIFFImage(input, (TIFFDecodeParam)param, page); |
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} |
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}
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