diff options
| author | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2008-11-25 12:03:13 +0000 |
|---|---|---|
| committer | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2008-11-25 12:03:13 +0000 |
| commit | c68ad0ec056b37c82debebcecfcde1866d61b4d9 (patch) | |
| tree | 9e3ec28a87a5c29d1087fd03cc4c77899e2c758c /src/main/java/org/pdfbox/filter | |
| parent | 2eae233bf806c076acb8afea41eb16552687bcea (diff) | |
| download | pdf-as-3-c68ad0ec056b37c82debebcecfcde1866d61b4d9.tar.gz pdf-as-3-c68ad0ec056b37c82debebcecfcde1866d61b4d9.tar.bz2 pdf-as-3-c68ad0ec056b37c82debebcecfcde1866d61b4d9.zip | |
Removing pdfbox from source.
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@301 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
Diffstat (limited to 'src/main/java/org/pdfbox/filter')
| -rw-r--r-- | src/main/java/org/pdfbox/filter/ASCII85Filter.java | 103 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/ASCIIHexFilter.java | 205 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java | 735 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/DCTFilter.java | 77 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/Filter.java | 68 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/FilterManager.java | 135 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/FlateFilter.java | 303 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/LZWDictionary.java | 215 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/LZWFilter.java | 235 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/LZWNode.java | 115 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/RunLengthDecodeFilter.java | 126 | ||||
| -rw-r--r-- | src/main/java/org/pdfbox/filter/package.html | 9 |
12 files changed, 0 insertions, 2326 deletions
diff --git a/src/main/java/org/pdfbox/filter/ASCII85Filter.java b/src/main/java/org/pdfbox/filter/ASCII85Filter.java deleted file mode 100644 index 335208c..0000000 --- a/src/main/java/org/pdfbox/filter/ASCII85Filter.java +++ /dev/null @@ -1,103 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-import org.pdfbox.io.ASCII85InputStream;
-import org.pdfbox.io.ASCII85OutputStream;
-
-import org.pdfbox.cos.COSDictionary;
-
-/**
- * This is the used for the ASCIIHexDecode filter.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.6 $
- */
-public class ASCII85Filter implements Filter
-{
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException
- {
- ASCII85InputStream is = null;
- try
- {
- is = new ASCII85InputStream(compressedData);
- byte[] buffer = new byte[1024];
- int amountRead = 0;
- while( (amountRead = is.read( buffer, 0, 1024) ) != -1 )
- {
- result.write(buffer, 0, amountRead);
- }
- result.flush();
- }
- finally
- {
- if( is != null )
- {
- is.close();
- }
- }
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException
- {
- ASCII85OutputStream os = new ASCII85OutputStream(result);
- byte[] buffer = new byte[1024];
- int amountRead = 0;
- while( (amountRead = rawData.read( buffer, 0, 1024 )) != -1 )
- {
- os.write( buffer, 0, amountRead );
- }
- os.close();
- result.flush();
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/ASCIIHexFilter.java b/src/main/java/org/pdfbox/filter/ASCIIHexFilter.java deleted file mode 100644 index b3cf506..0000000 --- a/src/main/java/org/pdfbox/filter/ASCIIHexFilter.java +++ /dev/null @@ -1,205 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-import org.pdfbox.cos.COSDictionary;
-
-import org.pdfbox.persistence.util.COSHEXTable;
-
-/**
- * This is the used for the ASCIIHexDecode filter.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.7 $
- */
-public class ASCIIHexFilter implements Filter
-{
- private static final int ASCII_ZERO = (int)'0';
-
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException
- {
- int value =0;
- int firstByte = 0;
- int secondByte = 0;
- while( (firstByte = compressedData.read()) != -1 )
- {
- value = REVERSE_HEX[firstByte] * 16;
- secondByte = compressedData.read();
- if( secondByte >= 0 )
- {
- value += REVERSE_HEX[ secondByte ];
- }
- result.write( value );
- }
- result.flush();
- }
-
- private static final int[] REVERSE_HEX =
- {
- -1, //0
- -1, //1
- -1, //2
- -1, //3
- -1, //4
- -1, //5
- -1, //6
- -1, //7
- -1, //8
- -1, //9
- -1, //10
- -1, //11
- -1, //12
- -1, //13
- -1, //14
- -1, //15
- -1, //16
- -1, //17
- -1, //18
- -1, //19
- -1, //20
- -1, //21
- -1, //22
- -1, //23
- -1, //24
- -1, //25
- -1, //26
- -1, //27
- -1, //28
- -1, //29
- -1, //30
- -1, //31
- -1, //32
- -1, //33
- -1, //34
- -1, //35
- -1, //36
- -1, //37
- -1, //38
- -1, //39
- -1, //40
- -1, //41
- -1, //42
- -1, //43
- -1, //44
- -1, //45
- -1, //46
- -1, //47
- 0, //48
- 1, //49
- 2, //50
- 3, //51
- 4, //52
- 5, //53
- 6, //54
- 7, //55
- 8, //56
- 9, //57
- -1, //58
- -1, //59
- -1, //60
- -1, //61
- -1, //62
- -1, //63
- -1, //64
- 10, //65
- 11, //66
- 12, //67
- 13, //68
- 14, //69
- 15, //70
- -1, //71
- -1, //72
- -1, //73
- -1, //74
- -1, //75
- -1, //76
- -1, //77
- -1, //78
- -1, //79
- -1, //80
- -1, //81
- -1, //82
- -1, //83
- -1, //84
- -1, //85
- -1, //86
- -1, //87
- -1, //88
- -1, //89
- -1, //90
- -1, //91
- -1, //92
- -1, //93
- -1, //94
- -1, //95
- -1, //96
- 10, //97
- 11, //98
- 12, //99
- 13, //100
- 14, //101
- 15, //102
- };
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException
- {
- int byteRead = 0;
- while( (byteRead = rawData.read()) != -1 )
- {
- int value = (byteRead+256)%256;
- result.write( COSHEXTable.TABLE[value] );
- }
- result.flush();
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java b/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java deleted file mode 100644 index 15f4c58..0000000 --- a/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java +++ /dev/null @@ -1,735 +0,0 @@ -/**
- * Copyright (c) 2003-2005, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-import org.apache.log4j.Logger;
-import org.pdfbox.cos.COSDictionary;
-import org.pdfbox.cos.COSName;
-
-/**
- * This is a filter for the CCITTFax Decoder.
- *
- * @author Ben Litchfield, Marcel Kammer, Paul King
- * @version $Revision: 1.10 $
- */
-public class CCITTFaxDecodeFilter implements Filter
-{
- private static Logger log = Logger.getLogger(CCITTFaxDecodeFilter.class);
-
- // Filter will write 15 TAG's
- // If you add or remove TAG's you will have to modify this value
- private static final int TAG_COUNT = 15;
-
- // HEADERLENGTH(fix 8 Bytes) plus ImageLength(variable)
- private int offset = 8;
-
- // Bytecounter for Bytes that will be written after the TAG-DICTIONARY
- private int tailingBytesCount = 0;
-
- // Bytes to write after TAG-DICTIONARY
- private final ByteArrayOutputStream tailer = new ByteArrayOutputStream();
-
- /**
- * Constructor.
- */
- public CCITTFaxDecodeFilter()
- {
- }
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData
- * The compressed byte stream.
- * @param result
- * The place to write the uncompressed byte stream.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error decompressing the stream.
- */
- public void decode(InputStream compressedData, OutputStream result, COSDictionary options) throws IOException
- {
- // log.warn( "Warning: CCITTFaxDecode.decode is not implemented yet,
- // skipping this stream." );
-
-
- // Get ImageParams from PDF
- COSDictionary dict = (COSDictionary) options.getDictionaryObject("DecodeParms");
- int width = options.getInt("Width");
- int height = options.getInt("Height");
- int length = options.getInt(COSName.LENGTH);
- int compressionType = dict.getInt("K");
- boolean blackIs1 = dict.getBoolean("BlackIs1", false);
-
-
- // HEADER-INFO and starting point of TAG-DICTIONARY
- writeTagHeader(result, length);
-
- // IMAGE-DATA
- int i = 0;
- //int sum = 0;
- byte[] buffer = new byte[32768];
- int lentoread = length;
-
- while ((lentoread > 0) && ((i = compressedData.read(buffer, 0, Math.min(lentoread, 32768))) != -1))
- {
- //sum += i;
- result.write(buffer, 0, i);
- lentoread = lentoread - i;
- }
-
- // If lentoread is > 0 then we need to write out some padding to equal the header
- // We'll use what we have in the buffer it's just padding after all
- while (lentoread > 0)
- {
- result.write(buffer, 0, Math.min(lentoread, 32768));
- lentoread = lentoread - Math.min(lentoread, 32738);
- }
- //System.out.println("Gelesen: " + sum);
-
- // TAG-COUNT
- writeTagCount(result);
-
- // WIDTH 0x0100
- writeTagWidth(result, width);
-
- // HEIGHT 0x0101
- writeTagHeight(result, height);
-
- // BITSPERSAMPLE 0x0102
- // Always 1 for CCITTFax
- writeTagBitsPerSample(result, 1);
-
- // COMPRESSION 0x0103
- writeTagCompression(result, compressionType);
-
- // PHOTOMETRIC 0x0106
- writeTagPhotometric(result, blackIs1);
-
- // STRIPOFFSET 0x0111
- // HERE ALWAYS 8, because ImageData comes before TAG-DICTIONARY
- writeTagStripOffset(result, 8);
-
- // ORIENTATION 0x0112
- writeTagOrientation(result, 1);
-
- // SamplesPerPixel 0x0115
- writeTagSamplesPerPixel(result, 1);
-
- // RowsPerStrip 0x0116
- writeTagRowsPerStrip(result, height);
-
- // Stripcount 0x0117
- writeTagStripByteCount(result, length);
-
- // XRESOLUTION 0x011A
- // HERE: 200 DPI
- writeTagXRes(result, 200, 1);
-
- // YRESOLITION 0x011B
- // HERE: 200 DPI
- writeTagYRes(result, 200, 1);
-
- // ResolutionUnit 0x0128
- // HERE: DPI
- writeTagResolutionUnit(result, 2);
-
- // SOFTWARE 0x0131
- // minimum 4 chars
- writeTagSoftware(result, "pdfbox".getBytes());
-
- // DATE AND TIME 0x0132
- writeTagDateTime(result, new Date());
-
- // END OF TAG-DICT
- writeTagTailer(result);
- }
-
- private void writeTagHeader(OutputStream result, int length) throws IOException
- {
- byte[] header = { 'M', 'M', 0, '*' };// Big-endian
- result.write(header);
-
-
- // Add imagelength to offset
- offset += length;
-
- // OFFSET TAG-DICTIONARY
- int i1 = offset/16777216;//=value/(256*256*256)
- int i2 = (offset-i1*16777216)/65536;
- int i3 = (offset-i1*16777216-i2*65536)/256;
- int i4 = offset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
- }
-
- private void writeTagCount(OutputStream result) throws IOException
- {
- result.write(TAG_COUNT / 256);
- result.write(TAG_COUNT % 256);// tagCount
- }
-
- private void writeTagWidth(OutputStream result, int width) throws IOException
- {
- // @todo width berechnen
-
- // TAG-ID 100
- result.write(1);
- result.write(0);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE = width
- result.write(width/256);
- result.write(width%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagHeight(OutputStream result, int height) throws IOException
- {
- //@todo height berechnen
- // TAG-ID 101
- result.write(1);
- result.write(1);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(height/256);
- result.write(height%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagBitsPerSample(OutputStream result, int value) throws IOException
- {
- // TAG-ID 102
- result.write(1);
- result.write(2);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value/256);
- result.write(value%256);
- result.write(0);//SHORT=0
- result.write(0);//SHORT=0
-
- }
-
- /**
- * Write the tag compression.
- *
- * @param result The stream to write to.
- * @param type The type to write.
- * @throws IOException If there is an error writing to the stream.
- */
- public void writeTagCompression(OutputStream result, int type) throws IOException
- {
- // TAG-ID 103
- result.write(1);
- result.write(3);
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LEGNTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- //@todo typ eintragen; hier immer 4
- result.write(0);
- if (type < 0)
- {
- result.write(4);// G4
- }
- else if (type == 0)
- {
- result.write(3);// G3-1D
- }
- else
- {
- result.write(2);// G3-2D
- }
- result.write(0);
- result.write(0);
-
- }
-
- private void writeTagPhotometric(OutputStream result, boolean blackIs1) throws IOException
- {
- // TAG-ID 106
- result.write(1);
- result.write(6);
-
-
- // TAG-TYPE SHORT
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(0);
- if (blackIs1)
- {
- result.write(1);
- }
- else
- {
- result.write(0);
- }
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagStripOffset(OutputStream result, int value) throws IOException
- {
- // TAG-ID 111
- result.write(1);
- result.write(17);
-
- // TAG-TYPE LONG=4
- result.write(0);
- result.write(4);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE = 8 //VOR TAG-DICTIONARY
- int i1 = value/16777216;//=value/(256*256*256)
- int i2 = (value-i1*16777216)/65536;
- int i3 = (value-i1*16777216-i2*65536)/256;
- int i4 = value % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- }
-
- private void writeTagSamplesPerPixel(OutputStream result, int value) throws IOException
- {
- // TAG-ID 115
- result.write(1);
- result.write(21);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagRowsPerStrip(OutputStream result, int value) throws IOException
- {
- // TAG-ID 116
- result.write(1);
- result.write(22);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagStripByteCount(OutputStream result, int value) throws IOException
- {
- //@todo value auswerten
- // TAG-ID 117
- result.write(1);
- result.write(23);
-
- // TAG-TYPE LONG=4
- result.write(0);
- result.write(4);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- int i1 = value/16777216;//=value/(256*256*256)
- int i2 = (value-i1*16777216)/65536;
- int i3 = (value-i1*16777216-i2*65536)/256;
- int i4 = value % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- }
-
- private void writeTagXRes(OutputStream result, int value1, int value2) throws IOException
- {
- // TAG-ID 11A
- result.write(1);
- result.write(26);
-
- // TAG-TYPE RATIONAL=5
- result.write(0);
- result.write(5);
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE=OFFSET TO RATIONAL
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- i1 = value1 /16777216;
- i2 = (value1-i1*16777216)/65536;
- i3 = (value1-i1*16777216 - i2*65536)/256;
- i4 = value1 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- i1 = value2 /16777216;
- i2 = (value2-i1*16777216)/65536;
- i3 = (value2-i1*16777216 - i2*65536)/256;
- i4 = value2 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- tailingBytesCount += 8;
- }
-
- private void writeTagYRes(OutputStream result, int value1, int value2) throws IOException
- {
- // TAG-ID 11B
- result.write(1);
- result.write(27);
-
-
- // TAG-TYPE RATIONAL=5
- result.write(0);
- result.write(5);
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE=OFFSET TO RATIONAL
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- i1 = value1 /16777216;
- i2 = (value1-i1*16777216)/65536;
- i3 = (value1-i1*16777216 - i2*65536)/256;
- i4 = value1 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- i1 = value2 /16777216;
- i2 = (value2-i1*16777216)/65536;
- i3 = (value2-i1*16777216 - i2*65536)/256;
- i4 = value2 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- tailingBytesCount += 8;
- }
-
- private void writeTagResolutionUnit(OutputStream result, int value) throws IOException
- {
- // TAG-ID 128
- result.write(1);
- result.write(40);
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- result.write(value/256);
- result.write(value%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagOrientation(OutputStream result, int value) throws IOException
- {
- // TAG-ID 112
- result.write(1);
- result.write(18);
-
- // TAG-TYPE SHORT = 3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagTailer(OutputStream result) throws IOException
- {
- // END OF TAG-DICTIONARY
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(0);
-
- // TAILER WITH VALUES OF RATIONALFIELD's
- result.write(tailer.toByteArray());
- }
-
- private void writeTagSoftware(OutputStream result, byte[] text) throws IOException
- {
- // TAG-ID 131
- result.write(1);
- result.write(49);
-
- // TAG-TYPE ASCII=2
- result.write(0);
- result.write(2);
-
-
- // TAG-LENGTH=id.length+1
- result.write(0);
- result.write(0);
- result.write((text.length + 1) / 256);
- result.write((text.length + 1) % 256);
-
- // TAG-VALUE
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
-
- tailer.write(text);
- tailer.write(0);
- tailingBytesCount += text.length + 1;
- }
-
- private void writeTagDateTime(OutputStream result, Date date) throws IOException
- {
- // TAG-ID 132
- result.write(1);
- result.write(50);
-
-
- // TAG-TYPE ASCII=2
- result.write(0);
- result.write(2);
-
-
- // TAG-LENGTH=20
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(20);
-
-
- // TAG-VALUE
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss");
- String datetime = sdf.format(date);
- tailer.write(datetime.getBytes());
- tailer.write(0);
-
- tailingBytesCount += 20;
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData
- * The raw data to encode.
- * @param result
- * The place to write to encoded results to.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error compressing the stream.
- */
- public void encode(InputStream rawData, OutputStream result, COSDictionary options) throws IOException
- {
- log.warn("Warning: CCITTFaxDecode.encode is not implemented yet, skipping this stream.");
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/DCTFilter.java b/src/main/java/org/pdfbox/filter/DCTFilter.java deleted file mode 100644 index 8f371ea..0000000 --- a/src/main/java/org/pdfbox/filter/DCTFilter.java +++ /dev/null @@ -1,77 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-import org.apache.log4j.Logger;
-import org.pdfbox.cos.COSDictionary;
-
-/**
- * This is the used for the DCTDecode filter.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.7 $
- */
-public class DCTFilter implements Filter
-{
- private static Logger log = Logger.getLogger( DCTFilter.class );
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException
- {
- log.warn( "Warning: DCTFilter.decode is not implemented yet, skipping this stream." );
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException
- {
- log.warn( "Warning: DCTFilter.encode is not implemented yet, skipping this stream." );
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/Filter.java b/src/main/java/org/pdfbox/filter/Filter.java deleted file mode 100644 index 8de3f81..0000000 --- a/src/main/java/org/pdfbox/filter/Filter.java +++ /dev/null @@ -1,68 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-import org.pdfbox.cos.COSDictionary;
-
-/**
- * This is the interface that will be used to apply filters to a byte stream.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.5 $
- */
-public interface Filter
-{
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException;
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException;
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/FilterManager.java b/src/main/java/org/pdfbox/filter/FilterManager.java deleted file mode 100644 index 87b1ad4..0000000 --- a/src/main/java/org/pdfbox/filter/FilterManager.java +++ /dev/null @@ -1,135 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.pdfbox.cos.COSName;
-
-/**
- * This will contain manage all the different types of filters that are available.
- *
- * @author Ben Litchfield
- * @version $Revision: 1.12 $
- */
-public class FilterManager
-{
- private Map filters = new HashMap();
-
- /**
- * Constructor.
- */
- public FilterManager()
- {
- Filter flateFilter = new FlateFilter();
- Filter dctFilter = new DCTFilter();
- Filter ccittFaxFilter = new CCITTFaxDecodeFilter();
- Filter lzwFilter = new LZWFilter();
- Filter asciiHexFilter = new ASCIIHexFilter();
- Filter ascii85Filter = new ASCII85Filter();
- Filter runLengthFilter = new RunLengthDecodeFilter();
-
- addFilter( COSName.FLATE_DECODE, flateFilter );
- addFilter( COSName.FLATE_DECODE_ABBREVIATION, flateFilter );
- addFilter( COSName.DCT_DECODE, dctFilter );
- addFilter( COSName.DCT_DECODE_ABBREVIATION, dctFilter );
- addFilter( COSName.CCITTFAX_DECODE, ccittFaxFilter );
- addFilter( COSName.CCITTFAX_DECODE_ABBREVIATION, ccittFaxFilter );
- addFilter( COSName.LZW_DECODE, lzwFilter );
- addFilter( COSName.LZW_DECODE_ABBREVIATION, lzwFilter );
- addFilter( COSName.ASCII_HEX_DECODE, asciiHexFilter );
- addFilter( COSName.ASCII_HEX_DECODE_ABBREVIATION, asciiHexFilter );
- addFilter( COSName.ASCII85_DECODE, ascii85Filter );
- addFilter( COSName.ASCII85_DECODE_ABBREVIATION, ascii85Filter );
- addFilter( COSName.RUN_LENGTH_DECODE, runLengthFilter );
- addFilter( COSName.RUN_LENGTH_DECODE_ABBREVIATION, runLengthFilter );
-
- }
-
- /**
- * This will get all of the filters that are available in the system.
- *
- * @return All available filters in the system.
- */
- public Collection getFilters()
- {
- return filters.values();
- }
-
- /**
- * This will add an available filter.
- *
- * @param filterName The name of the filter.
- * @param filter The filter to use.
- */
- public void addFilter( COSName filterName, Filter filter )
- {
- filters.put( filterName, filter );
- }
-
- /**
- * This will get a filter by name.
- *
- * @param filterName The name of the filter to retrieve.
- *
- * @return The filter that matches the name.
- *
- * @throws IOException If the filter could not be found.
- */
- public Filter getFilter( COSName filterName ) throws IOException
- {
- Filter filter = (Filter)filters.get( filterName );
- if( filter == null )
- {
- throw new IOException( "Unknown stream filter:" + filterName );
- }
-
- return filter;
- }
-
- /**
- * This will get a filter by name.
- *
- * @param filterName The name of the filter to retrieve.
- *
- * @return The filter that matches the name.
- *
- * @throws IOException If the filter could not be found.
- */
- public Filter getFilter( String filterName ) throws IOException
- {
- return getFilter( COSName.getPDFName( filterName ) );
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/FlateFilter.java b/src/main/java/org/pdfbox/filter/FlateFilter.java deleted file mode 100644 index c239686..0000000 --- a/src/main/java/org/pdfbox/filter/FlateFilter.java +++ /dev/null @@ -1,303 +0,0 @@ -/**
- * Copyright (c) 2003-2005, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.zip.DeflaterOutputStream;
-import java.util.zip.InflaterInputStream;
-
-import org.pdfbox.cos.COSDictionary;
-
-/**
- * This is the used for the FlateDecode filter.
- *
- * @author Ben Litchfield (ben@benlitchfield.com)
- * @author Marcel Kammer
- * @version $Revision: 1.9 $
- */
-public class FlateFilter implements Filter
-{
- private static final int BUFFER_SIZE = 2048;
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData
- * The compressed byte stream.
- * @param result
- * The place to write the uncompressed byte stream.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error decompressing the stream.
- */
-
- public void decode(InputStream compressedData, OutputStream result, COSDictionary options) throws IOException
- {
- COSDictionary dict = (COSDictionary) options.getDictionaryObject("DecodeParms");
- int predictor = -1;
- int colors = -1;
- int bitsPerPixel = -1;
- int columns = -1;
- InflaterInputStream decompressor = null;
- ByteArrayInputStream bais = null;
- ByteArrayOutputStream baos = null;
- if (dict!=null)
- {
- predictor = dict.getInt("Predictor");
- colors = dict.getInt("Colors");
- bitsPerPixel = options.getInt("BitsPerComponent");
- columns = dict.getInt("Columns");
- }
-
- try
- {
- // Decompress data to temporary ByteArrayOutputStream
- decompressor = new InflaterInputStream(compressedData);
- byte[] buffer = new byte[BUFFER_SIZE];
- int amountRead;
-
- // Decode data using given predictor
- if (predictor==-1 || predictor == 1 && predictor == 10)
- {
- // decoding not needed
- while ((amountRead = decompressor.read(buffer, 0, BUFFER_SIZE)) != -1)
- {
- result.write(buffer, 0, amountRead);
- }
- }
- else
- {
- if (colors==-1 || bitsPerPixel==-1 || columns==-1)
- {
- throw new IOException("Could not read all parameters to decode image");
- }
-
- baos = new ByteArrayOutputStream();
- while ((amountRead = decompressor.read(buffer, 0, BUFFER_SIZE)) != -1)
- {
- baos.write(buffer, 0, amountRead);
- }
- baos.flush();
-
- // Copy data to ByteArrayInputStream for reading
- bais = new ByteArrayInputStream(baos.toByteArray());
- baos.close();
- baos = null;
-
- byte[] decodedData = decodePredictor(predictor, colors, bitsPerPixel, columns, bais);
- bais.close();
- bais = new ByteArrayInputStream(decodedData);
-
- // write decoded data to result
- while ((amountRead = bais.read(buffer)) != -1)
- {
- result.write(buffer, 0, amountRead);
- }
- bais.close();
- bais = null;
- }
-
-
- result.flush();
- }
- finally
- {
- if (decompressor != null)
- {
- decompressor.close();
- }
- if (bais != null)
- {
- bais.close();
- }
- if (baos != null)
- {
- baos.close();
- }
- }
- }
-
- private byte[] decodePredictor(int predictor, int colors, int bitsPerComponent, int columns, InputStream data)
- throws IOException
- {
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- byte[] buffer = new byte[2048];
-
- if (predictor == 1 || predictor == 10)
- {
- // No prediction or PNG NONE
- int i = 0;
- while ((i = data.read(buffer)) != -1)
- {
- baos.write(buffer, 0, i);
- }
- }
- else
- {
- // calculate sizes
- int bpp = (colors * bitsPerComponent + 7) / 8;
- int rowlength = (columns * colors * bitsPerComponent + 7) / 8 + bpp;
- byte[] actline = new byte[rowlength];
- byte[] lastline = new byte[rowlength];// Initialize lastline with
- // Zeros according to
- // PNG-specification
- boolean done = false;
- int linepredictor = predictor;
-
- while (!done)
- {
- if (predictor == 15)
- {
- linepredictor = data.read();// read per line predictor
- if (linepredictor == -1)
- {
- done = true;// reached EOF
- break;
- }
- else
- {
- linepredictor += 10; // add 10 to tread value 1 as 11
- }
- // (instead of PRED NONE) and 2
- // as 12 (instead of PRED TIFF)
- }
-
- // read line
- int i = 0;
- int offset = bpp;
- while (offset < rowlength && ((i = data.read(actline, offset, rowlength - offset)) != -1))
- {
- offset += i;
- }
-
- // Do prediction as specified in PNG-Specification 1.2
- switch (linepredictor)
- {
- case 2:// PRED TIFF SUB
- /**
- * @todo decode tiff
- */
- throw new IOException("TIFF-Predictor not supported");
- case 11:// PRED SUB
- for (int p = bpp; p < rowlength; p++)
- {
- int sub = actline[p] & 0xff;
- int left = actline[p - bpp] & 0xff;
- actline[p] = (byte) (sub + left);
- }
- break;
- case 12:// PRED UP
- for (int p = bpp; p < rowlength; p++)
- {
- int up = actline[p] & 0xff;
- int prior = lastline[p] & 0xff;
- actline[p] = (byte) (up + prior);
- }
- break;
- case 13:// PRED AVG
- for (int p = bpp; p < rowlength; p++)
- {
- int avg = actline[p] & 0xff;
- int left = actline[p - bpp] & 0xff;
- int up = lastline[p] & 0xff;
- actline[p] = (byte) (avg + ((left + up) / 2));
- }
- break;
- case 14:// PRED PAETH
- for (int p = bpp; p < rowlength; p++)
- {
- int paeth = actline[p] & 0xff;
- int a = actline[p - bpp] & 0xff;// left
- int b = lastline[p] & 0xff;// upper
- int c = lastline[p - bpp] & 0xff;// upperleft
- int value = a + b - c;
- int absa = Math.abs(value - a);
- int absb = Math.abs(value - b);
- int absc = Math.abs(value - c);
-
- if (absa <= absb && absa <= absc)
- {
- actline[p] = (byte) (paeth + absa);
- }
- else if (absb <= absc)
- {
- actline[p] += (byte) (paeth + absb);
- }
- else
- {
- actline[p] += (byte) (paeth + absc);
- }
- }
- break;
- default:
- break;
- }
-
- lastline = actline;
- baos.write(actline, bpp, actline.length - bpp);
- }
- }
-
- return baos.toByteArray();
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData
- * The raw data to encode.
- * @param result
- * The place to write to encoded results to.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error compressing the stream.
- */
- public void encode(InputStream rawData, OutputStream result, COSDictionary options) throws IOException
- {
- DeflaterOutputStream out = new DeflaterOutputStream(result);
- byte[] buffer = new byte[BUFFER_SIZE];
- int amountRead = 0;
- while ((amountRead = rawData.read(buffer, 0, BUFFER_SIZE)) != -1)
- {
- out.write(buffer, 0, amountRead);
- }
- out.close();
- result.flush();
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/LZWDictionary.java b/src/main/java/org/pdfbox/filter/LZWDictionary.java deleted file mode 100644 index 075dab8..0000000 --- a/src/main/java/org/pdfbox/filter/LZWDictionary.java +++ /dev/null @@ -1,215 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * This is the used for the LZWDecode filter. This represents the dictionary mappings
- * between codes and their values.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.3 $
- */
-class LZWDictionary
-{
- private Map codeToData = new HashMap();
- private LZWNode root = new LZWNode();
-
- private ByteArrayOutputStream buffer = new ByteArrayOutputStream();
- private long nextCode = 258;
- private int codeSize = 9;
-
- /**
- * constructor.
- */
- public LZWDictionary()
- {
- for( long i=0; i<256; i++ )
- {
- LZWNode node = new LZWNode();
- node.setCode( i );
- root.setNode( (byte)i, node );
- codeToData.put( new Long( i ), new byte[]{ (byte)i } );
- }
- }
-
- /**
- * This will get the value for the code. It will return null if the code is not
- * defined.
- *
- * @param code The key to the data.
- *
- * @return The data that is mapped to the code.
- */
- public byte[] getData( long code )
- {
- return (byte[])codeToData.get( new Long( code ) );
- }
-
- /**
- * This will take a visit from a byte[]. This will create new code entries as
- * necessary.
- *
- * @param data The byte to get a visit from.
- *
- * @throws IOException If there is an error visiting this data.
- */
- public void visit( byte[] data ) throws IOException
- {
- for( int i=0; i<data.length; i++ )
- {
- visit( data[i] );
- }
- }
-
- /**
- * This will take a visit from a byte. This will create new code entries as
- * necessary.
- *
- * @param data The byte to get a visit from.
- *
- * @throws IOException If there is an error visiting this data.
- */
- public void visit( byte data ) throws IOException
- {
- buffer.write( data );
- byte[] curBuffer = buffer.toByteArray();
- LZWNode previous = null;
- LZWNode current = root;
- boolean createNewCode = false;
- for( int i=0; i<curBuffer.length && current != null; i++ )
- {
- previous = current;
- current = current.getNode( curBuffer[i] );
- if( current == null )
- {
- createNewCode = true;
- current = new LZWNode();
- previous.setNode( curBuffer[i], current );
- }
- }
- if( createNewCode )
- {
- long code = nextCode++;
- current.setCode( code );
- codeToData.put( new Long( code ), curBuffer );
-
- /**
- System.out.print( "Adding " + code + "='" );
- for( int i=0; i<curBuffer.length; i++ )
- {
- String hex = Integer.toHexString( ((curBuffer[i]+256)%256) );
- if( hex.length() <=1 )
- {
- hex = "0" + hex;
- }
- if( i != curBuffer.length -1 )
- {
- hex += " ";
- }
- System.out.print( hex.toUpperCase() );
- }
- System.out.println( "'" );
- **/
- buffer.reset();
- buffer.write( data );
- resetCodeSize();
- }
- }
-
- /**
- * This will get the next code that will be created.
- *
- * @return The next code to be created.
- */
- public long getNextCode()
- {
- return nextCode;
- }
-
- /**
- * This will get the size of the code in bits, 9, 10, or 11.
- *
- * @return The size of the code in bits.
- */
- public int getCodeSize()
- {
- return codeSize;
- }
-
- /**
- * This will determine the code size.
- */
- private void resetCodeSize()
- {
- if( nextCode >= 2048 )
- {
- codeSize = 12;
- }
- else if( nextCode >= 1024 )
- {
- codeSize = 11;
- }
- else if( nextCode >= 512 )
- {
- codeSize = 10;
- }
- else
- {
- codeSize = 9;
- }
- }
-
- /**
- * This will crear the internal buffer that the dictionary uses.
- */
- public void clear()
- {
- buffer.reset();
- }
-
- /**
- * This will folow the path to the data node.
- *
- * @param data The path to the node.
- *
- * @return The node that resides at that path.
- */
- public LZWNode getNode( byte[] data )
- {
- return root.getNode( data );
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/LZWFilter.java b/src/main/java/org/pdfbox/filter/LZWFilter.java deleted file mode 100644 index e8ba003..0000000 --- a/src/main/java/org/pdfbox/filter/LZWFilter.java +++ /dev/null @@ -1,235 +0,0 @@ -/**
- * Copyright (c) 2003-2005, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.PushbackInputStream;
-import java.io.StreamCorruptedException;
-
-import org.pdfbox.cos.COSDictionary;
-
-import org.pdfbox.io.NBitInputStream;
-import org.pdfbox.io.NBitOutputStream;
-
-/**
- * This is the used for the LZWDecode filter.
- *
- * @author Ben Litchfield (ben@benlitchfield.com)
- * @version $Revision: 1.13 $
- */
-public class LZWFilter implements Filter
-{
-
- /**
- * The LZW clear table code.
- */
- public static final long CLEAR_TABLE = 256;
- /**
- * The LZW end of data code.
- */
- public static final long EOD = 257;
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException
- {
- //log.debug("decode( )");
- NBitInputStream in = null;
- in = new NBitInputStream( compressedData );
- in.setBitsInChunk( 9 );
- LZWDictionary dic = new LZWDictionary();
- byte firstByte = 0;
- long nextCommand = 0;
- while( (nextCommand = in.read() ) != EOD )
- {
- // log.debug( "decode - nextCommand=" + nextCommand + ", bitsInChunk: " + in.getBitsInChunk());
-
- if( nextCommand == CLEAR_TABLE )
- {
- in.setBitsInChunk( 9 );
- dic = new LZWDictionary();
- }
- else
- {
- byte[] data = dic.getData( nextCommand );
- if( data == null )
- {
- dic.visit( firstByte );
- data = dic.getData( nextCommand );
- dic.clear();
- }
- if( data == null )
- {
- throw new StreamCorruptedException( "Error: data is null" );
- }
- dic.visit(data);
-
- //log.debug( "decode - dic.getNextCode(): " + dic.getNextCode());
-
- if( dic.getNextCode() >= 2047 )
- {
- in.setBitsInChunk( 12 );
- }
- else if( dic.getNextCode() >= 1023 )
- {
- in.setBitsInChunk( 11 );
- }
- else if( dic.getNextCode() >= 511 )
- {
- in.setBitsInChunk( 10 );
- }
- else
- {
- in.setBitsInChunk( 9 );
- }
- /**
- if( in.getBitsInChunk() != dic.getCodeSize() )
- {
- in.unread( nextCommand );
- in.setBitsInChunk( dic.getCodeSize() );
- System.out.print( "Switching " + nextCommand + " to " );
- nextCommand = in.read();
- System.out.println( "" + nextCommand );
- data = dic.getData( nextCommand );
- }**/
- firstByte = data[0];
- result.write( data );
- }
- }
- result.flush();
- }
-
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException
- {
- //log.debug("encode( )");
- PushbackInputStream input = new PushbackInputStream( rawData, 4096 );
- LZWDictionary dic = new LZWDictionary();
- NBitOutputStream out = new NBitOutputStream( result );
- out.setBitsInChunk( 9 ); //initially nine
- out.write( CLEAR_TABLE );
- ByteArrayOutputStream buffer = new ByteArrayOutputStream();
- int byteRead = 0;
- for( int i=0; (byteRead = input.read()) != -1; i++ )
- {
- //log.debug( "byteRead = '" + (char)byteRead + "' (0x" + Integer.toHexString(byteRead) + "), i=" + i);
- buffer.write( byteRead );
- dic.visit( (byte)byteRead );
- out.setBitsInChunk( dic.getCodeSize() );
-
- //log.debug( "Getting node '" + new String( buffer.toByteArray() ) + "', buffer.size = " + buffer.size() );
- LZWNode node = dic.getNode( buffer.toByteArray() );
- int nextByte = input.read();
- if( nextByte != -1 )
- {
- //log.debug( "nextByte = '" + (char)nextByte + "' (0x" + Integer.toHexString(nextByte) + ")");
- LZWNode next = node.getNode( (byte)nextByte );
- if( next == null )
- {
- //log.debug("encode - No next node, writing node and resetting buffer (" +
- // " node.getCode: " + node.getCode() + ")" +
- // " bitsInChunk: " + out.getBitsInChunk() +
- // ")");
- out.write( node.getCode() );
- buffer.reset();
- }
-
- input.unread( nextByte );
- }
- else
- {
- //log.debug("encode - EOF on lookahead: writing node, resetting buffer, and terminating read loop (" +
- // " node.getCode: " + node.getCode() + ")" +
- // " bitsInChunk: " + out.getBitsInChunk() +
- // ")");
- out.write( node.getCode() );
- buffer.reset();
- break;
- }
-
- if( dic.getNextCode() == 4096 )
- {
- //log.debug("encode - Clearing dictionary and unreading pending buffer data (" +
- // " bitsInChunk: " + out.getBitsInChunk() +
- // ")");
- out.write( CLEAR_TABLE );
- dic = new LZWDictionary();
- input.unread( buffer.toByteArray() );
- buffer.reset();
- }
- }
-
- // Fix the code size based on the fact that we are writing the EOD
- //
- if( dic.getNextCode() >= 2047 )
- {
- out.setBitsInChunk( 12 );
- }
- else if( dic.getNextCode() >= 1023 )
- {
- out.setBitsInChunk( 11 );
- }
- else if( dic.getNextCode() >= 511 )
- {
- out.setBitsInChunk( 10 );
- }
- else
- {
- out.setBitsInChunk( 9 );
- }
-
- //log.debug("encode - Writing EOD (" +
- // " bitsInChunk: " + out.getBitsInChunk() +
- // ")");
- out.write( EOD );
- out.close();
- result.flush();
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/LZWNode.java b/src/main/java/org/pdfbox/filter/LZWNode.java deleted file mode 100644 index 563ea5d..0000000 --- a/src/main/java/org/pdfbox/filter/LZWNode.java +++ /dev/null @@ -1,115 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * This is the used for the LZWDecode filter.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.3 $
- */
-class LZWNode
-{
- private long code;
- private Map subNodes = new HashMap();
-
- /**
- * This will get the number of children.
- *
- * @return The number of children.
- */
- public int childCount()
- {
- return subNodes.size();
- }
-
- /**
- * This will set the node for a particular byte.
- *
- * @param b The byte for that node.
- * @param node The node to add.
- */
- public void setNode( byte b, LZWNode node )
- {
- subNodes.put( new Byte( b ), node );
- }
-
- /**
- * This will get the node that is a direct sub node of this node.
- *
- * @param data The byte code to the node.
- *
- * @return The node at that value if it exists.
- */
- public LZWNode getNode( byte data )
- {
- return (LZWNode)subNodes.get( new Byte( data ) );
- }
-
-
- /**
- * This will traverse the tree until it gets to the sub node.
- * This will return null if the node does not exist.
- *
- * @param data The path to the node.
- *
- * @return The node that resides at the data path.
- */
- public LZWNode getNode( byte[] data )
- {
- LZWNode current = this;
- for( int i=0; i<data.length && current != null; i++ )
- {
- current = current.getNode( data[i] );
- }
- return current;
- }
-
- /** Getter for property code.
- * @return Value of property code.
- */
- public long getCode()
- {
- return code;
- }
-
- /** Setter for property code.
- * @param codeValue New value of property code.
- */
- public void setCode(long codeValue)
- {
- code = codeValue;
- }
-
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/RunLengthDecodeFilter.java b/src/main/java/org/pdfbox/filter/RunLengthDecodeFilter.java deleted file mode 100644 index d1fe1c1..0000000 --- a/src/main/java/org/pdfbox/filter/RunLengthDecodeFilter.java +++ /dev/null @@ -1,126 +0,0 @@ -/**
- * Copyright (c) 2004, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-import org.apache.log4j.Logger;
-import org.pdfbox.cos.COSDictionary;
-
-/**
- * This is a filter for the RunLength Decoder.
- *
- * From the PDF Reference
- * <pre>
- * The RunLengthDecode filter decodes data that has been encoded in a simple
- * byte-oriented format based on run length. The encoded data is a sequence of
- * runs, where each run consists of a length byte followed by 1 to 128 bytes of data. If
- * the length byte is in the range 0 to 127, the following length + 1 (1 to 128) bytes
- * are copied literally during decompression. If length is in the range 129 to 255, the
- * following single byte is to be copied 257 ? length (2 to 128) times during decompression.
- * A length value of 128 denotes EOD.
- *
- * The compression achieved by run-length encoding depends on the input data. In
- * the best case (all zeros), a compression of approximately 64:1 is achieved for long
- * files. The worst case (the hexadecimal sequence 00 alternating with FF) results in
- * an expansion of 127:128.
- * </pre>
- *
- * @author Ben Litchfield
- * @version $Revision: 1.3 $
- */
-public class RunLengthDecodeFilter implements Filter
-{
- private static Logger log = Logger.getLogger( RunLengthDecodeFilter.class );
-
- private static final int RUN_LENGTH_EOD = 128;
-
- /**
- * Constructor.
- */
- public RunLengthDecodeFilter()
- {
- //default constructor
- }
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData The compressed byte stream.
- * @param result The place to write the uncompressed byte stream.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error decompressing the stream.
- */
- public void decode( InputStream compressedData, OutputStream result, COSDictionary options ) throws IOException
- {
- int dupAmount = -1;
- byte[] buffer = new byte[128];
- while( (dupAmount = compressedData.read()) != -1 && dupAmount != RUN_LENGTH_EOD )
- {
- if( dupAmount <= 127 )
- {
- int amountToCopy = dupAmount+1;
- int compressedRead = 0;
- while( amountToCopy > 0 )
- {
- compressedRead = compressedData.read( buffer, 0, amountToCopy );
- result.write( buffer, 0, compressedRead );
- amountToCopy -= compressedRead;
- }
- }
- else
- {
- int dupByte = compressedData.read();
- for( int i=0; i<257-dupAmount; i++ )
- {
- result.write( dupByte );
- }
- }
- }
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData The raw data to encode.
- * @param result The place to write to encoded results to.
- * @param options The options to use to encode the data.
- *
- * @throws IOException If there is an error compressing the stream.
- */
- public void encode( InputStream rawData, OutputStream result, COSDictionary options ) throws IOException
- {
- log.warn( "Warning: RunLengthDecodeFilter.encode is not implemented yet, skipping this stream." );
- }
-}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/filter/package.html b/src/main/java/org/pdfbox/filter/package.html deleted file mode 100644 index 36dbb7d..0000000 --- a/src/main/java/org/pdfbox/filter/package.html +++ /dev/null @@ -1,9 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
-<html>
-<head>
-
-</head>
-<body>
-This package will hold the PDFBox implementations of the filters that are used in PDF documents.
-</body>
-</html>
|