First stab at hdgf, an implementation of the visio format. Basic support for processing the equivalent of records - pointers and blocks. Now to refactor it into something sane!
git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@548428 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch
parent
12cb6d67f6
commit
2d22286924
|
|
@ -0,0 +1,287 @@
|
|||
/* ====================================================================
|
||||
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
contributor license agreements. See the NOTICE file distributed with
|
||||
this work for additional information regarding copyright ownership.
|
||||
The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
(the "License"); you may not use this file except in compliance with
|
||||
the License. You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
==================================================================== */
|
||||
package org.apache.poi.hdgf;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.FileInputStream;
|
||||
import java.io.IOException;
|
||||
|
||||
import org.apache.poi.poifs.filesystem.DocumentEntry;
|
||||
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
|
||||
import org.apache.poi.util.LittleEndian;
|
||||
|
||||
/**
|
||||
* See
|
||||
* http://www.redferni.uklinux.net/visio/
|
||||
* http://www.gnome.ru/projects/docs/vsdocs.html
|
||||
* http://www.gnome.ru/projects/docs/slide1.png
|
||||
* http://www.gnome.ru/projects/docs/slide2.png
|
||||
*/
|
||||
public class HDGFDiagram {
|
||||
private static final String VISIO_HEADER = "Visio (TM) Drawing\r\n";
|
||||
|
||||
private POIFSFileSystem filesystem;
|
||||
private byte[] _docstream;
|
||||
|
||||
private short version;
|
||||
private long docSize;
|
||||
|
||||
private VisioPointer trailerPointer;
|
||||
private PointerBlock trailer;
|
||||
|
||||
public HDGFDiagram(POIFSFileSystem fs) throws IOException {
|
||||
filesystem = fs;
|
||||
|
||||
DocumentEntry docProps =
|
||||
(DocumentEntry)filesystem.getRoot().getEntry("VisioDocument");
|
||||
|
||||
// Grab the document stream
|
||||
_docstream = new byte[docProps.getSize()];
|
||||
filesystem.createDocumentInputStream("VisioDocument").read(_docstream);
|
||||
|
||||
// Check it's really visio
|
||||
String typeString = new String(_docstream, 0, 20);
|
||||
if(! typeString.equals(VISIO_HEADER)) {
|
||||
throw new IllegalArgumentException("Wasn't a valid visio document, started with " + typeString);
|
||||
}
|
||||
|
||||
// Grab the version number, 0x1a -> 0x1b
|
||||
version = LittleEndian.getShort(_docstream, 0x1a);
|
||||
// Grab the document size, 0x1c -> 0x1f
|
||||
docSize = LittleEndian.getUInt(_docstream, 0x1c);
|
||||
// ??? 0x20 -> 0x23
|
||||
|
||||
// Grab the pointer to the trailer
|
||||
trailerPointer = VisioPointer.getPointerAt(_docstream, 0x24);
|
||||
|
||||
// And now grab the trailer
|
||||
trailer = new CompressedPointerBlock(trailerPointer, _docstream);
|
||||
}
|
||||
|
||||
public void debug() throws IOException {
|
||||
System.err.println("Trailer is at " + trailerPointer.offset);
|
||||
System.err.println("Trailer has type " + trailerPointer.type);
|
||||
System.err.println("Trailer has length " + trailerPointer.length);
|
||||
System.err.println("Trailer has format " + trailerPointer.format);
|
||||
|
||||
for(int i=0; i<trailer.getPointers().length; i++) {
|
||||
VisioPointer ptr = trailer.getPointers()[i];
|
||||
|
||||
System.err.println("Looking at pointer " + i);
|
||||
System.err.println("\tType is " + ptr.type + "\t\t" + Integer.toHexString(ptr.type));
|
||||
System.err.println("\tOffset is " + ptr.offset + "\t\t" + Long.toHexString(ptr.offset));
|
||||
System.err.println("\tAddress is " + ptr.address + "\t" + Long.toHexString(ptr.address));
|
||||
System.err.println("\tLength is " + ptr.length + "\t\t" + Long.toHexString(ptr.length));
|
||||
System.err.println("\tFormat is " + ptr.format + "\t\t" + Long.toHexString(ptr.format));
|
||||
System.err.println("\tCompressed is " + ptr.destinationCompressed());
|
||||
|
||||
if(ptr.destinationHasPointers()) {
|
||||
PointerBlock pb = PointerBlock.createAppropriateBlock(ptr, _docstream);
|
||||
|
||||
if(pb.getPointers() != null && pb.getPointers().length > 0) {
|
||||
System.err.println("\tContains " + pb.getPointers().length + " other pointers");
|
||||
for(int j=0; j<pb.getPointers().length; j++) {
|
||||
VisioPointer sptr = pb.getPointers()[j];
|
||||
System.err.println("\t\t" + j + " - Type is " + sptr.type + "\t\t" + Integer.toHexString(sptr.type));
|
||||
System.err.println("\t\t" + j + " - Length is " + sptr.length + "\t\t" + Long.toHexString(sptr.length));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if(ptr.destinationHasStrings()) {
|
||||
System.err.println("**strings**");
|
||||
PointerBlock pb = PointerBlock.createAppropriateBlock(ptr, _docstream);
|
||||
System.err.println(pb.contents.length);
|
||||
}
|
||||
}
|
||||
}
|
||||
/**
|
||||
* Will only work on Test_Visio-Some_Random_Text.vsd !
|
||||
*/
|
||||
public void debugTestFile() throws Exception {
|
||||
System.err.println();
|
||||
|
||||
VisioPointer p61ee = trailer.pointers[8];
|
||||
System.err.println(p61ee.type + " " + Integer.toHexString(p61ee.type));
|
||||
PointerBlock pb61ee = PointerBlock.createAppropriateBlock(p61ee, _docstream);
|
||||
|
||||
VisioPointer p4524 = pb61ee.pointers[4];
|
||||
System.err.println(p4524.type + " " + Integer.toHexString(p4524.type));
|
||||
PointerBlock pb4524 = PointerBlock.createAppropriateBlock(p4524, _docstream);
|
||||
|
||||
VisioPointer p44d3 = pb4524.pointers[5];
|
||||
System.err.println(p44d3.type + " " + Integer.toHexString(p44d3.type));
|
||||
PointerBlock pb44d3 = PointerBlock.createAppropriateBlock(p44d3, _docstream);
|
||||
|
||||
VisioPointer p4312 = pb44d3.pointers[1];
|
||||
System.err.println(p4312.type + " " + Integer.toHexString(p4312.type));
|
||||
PointerBlock pb4312 = PointerBlock.createAppropriateBlock(p4312, _docstream);
|
||||
|
||||
VisioPointer p347f = pb4312.pointers[0];
|
||||
System.err.println();
|
||||
System.err.println(p347f.type + " " + Integer.toHexString(p347f.type));
|
||||
System.err.println(p347f.offset + " " + Long.toHexString(p347f.offset));
|
||||
System.err.println(p347f.length + " " + Long.toHexString(p347f.length));
|
||||
System.err.println("Has Strings - " + p347f.destinationHasStrings());
|
||||
System.err.println("Compressed - " + p347f.destinationCompressed());
|
||||
|
||||
PointerBlock pb347f = PointerBlock.createAppropriateBlock(p347f, _docstream);
|
||||
}
|
||||
|
||||
/**
|
||||
* For testing only
|
||||
*/
|
||||
public static void main(String args[]) throws Exception {
|
||||
HDGFDiagram hdgf = new HDGFDiagram(new POIFSFileSystem(new FileInputStream(args[0])));
|
||||
hdgf.debug();
|
||||
hdgf.debugTestFile();
|
||||
}
|
||||
|
||||
/**
|
||||
* A block containing lots of pointers to other blocks.
|
||||
*/
|
||||
public static class PointerBlock {
|
||||
protected VisioPointer pointer;
|
||||
private byte[] contents;
|
||||
|
||||
protected VisioPointer[] pointers;
|
||||
|
||||
protected PointerBlock(VisioPointer pointer) {
|
||||
this.pointer = pointer;
|
||||
}
|
||||
protected PointerBlock(VisioPointer pointer, byte[] data) {
|
||||
this(pointer);
|
||||
|
||||
processData(data, (int)pointer.offset, (int)pointer.length);
|
||||
}
|
||||
|
||||
protected static PointerBlock createAppropriateBlock(VisioPointer pointer, byte[] data) throws IOException {
|
||||
if(pointer.destinationCompressed()) {
|
||||
return new CompressedPointerBlock(pointer,data);
|
||||
} else {
|
||||
return new PointerBlock(pointer,data);
|
||||
}
|
||||
}
|
||||
|
||||
public VisioPointer[] getPointers() { return pointers; }
|
||||
|
||||
/**
|
||||
* Splits the data up into header + contents, and processes
|
||||
*/
|
||||
protected void processData(byte[] data, int offset, int len) {
|
||||
if(len > data.length - offset) {
|
||||
len = data.length - offset;
|
||||
}
|
||||
if(offset < 0) { len = 0; }
|
||||
|
||||
contents = new byte[len];
|
||||
if(len > 0)
|
||||
System.arraycopy(data, offset, contents, 0, contents.length);
|
||||
|
||||
// If we're of type 20, we have child pointers
|
||||
if(len > 0 && (pointer.type == 20 || pointer.destinationHasPointers())) {
|
||||
// Grab the offset to the number of pointers
|
||||
int nPointersAt = (int)LittleEndian.getUInt(contents, 0);
|
||||
int numPointers = (int)LittleEndian.getUInt(contents, nPointersAt);
|
||||
int unknownA = (int)LittleEndian.getUInt(contents, nPointersAt+4);
|
||||
|
||||
pointers = new VisioPointer[numPointers];
|
||||
int pos = nPointersAt + 8;
|
||||
for(int i=0; i<numPointers; i++) {
|
||||
pointers[i] = VisioPointer.getPointerAt(contents, pos);
|
||||
pos += 18;
|
||||
}
|
||||
}
|
||||
|
||||
// If we have strings, try to make sense of them
|
||||
if(len > 0 && (pointer.destinationHasStrings())) {
|
||||
for(int i=0; i<64; i+=1) {
|
||||
short s = LittleEndian.getShort(contents, i);
|
||||
long l = LittleEndian.getUInt(contents, i);
|
||||
System.err.println(i + "\t" + s + "\t" + Integer.toHexString(s));
|
||||
System.err.println(i + "\t" + l + "\t" + Long.toHexString(l));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A block containing lots of pointers to other blocks, that
|
||||
* is itself compressed
|
||||
*/
|
||||
public static class CompressedPointerBlock extends PointerBlock {
|
||||
protected byte[] compressedContents;
|
||||
private byte[] blockHeader = new byte[4];
|
||||
|
||||
protected CompressedPointerBlock(VisioPointer pointer, byte[] data) throws IOException {
|
||||
super(pointer);
|
||||
|
||||
compressedContents = new byte[(int)pointer.length];
|
||||
System.arraycopy(data, (int)pointer.offset, compressedContents, 0, compressedContents.length);
|
||||
|
||||
// Decompress
|
||||
ByteArrayInputStream bais = new ByteArrayInputStream(compressedContents);
|
||||
|
||||
// TIFFLZWDecoder lzw = new TIFFLZWDecoder();
|
||||
// byte[] out = new byte[4096];
|
||||
// contents = lzw.decode(compressedContents, out);
|
||||
|
||||
LZW4HDGF lzw = new LZW4HDGF();
|
||||
byte[] decomp = lzw.decode(bais);
|
||||
System.arraycopy(decomp, 0, blockHeader, 0, 4);
|
||||
processData(decomp, 4, decomp.length-4);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A visio pointer, for visio versions 6+
|
||||
*/
|
||||
public static class VisioPointer {
|
||||
private int type;
|
||||
private long address;
|
||||
private long offset;
|
||||
private long length;
|
||||
private short format;
|
||||
|
||||
public boolean destinationHasStrings() {
|
||||
return (0x40 <= format && format < 0x50);
|
||||
}
|
||||
public boolean destinationHasPointers() {
|
||||
if(format == 0x1d || format == 0x1e) return true;
|
||||
return (0x50 <= format && format < 0x60);
|
||||
}
|
||||
public boolean destinationHasChunks() {
|
||||
return (0xd0 <= format && format < 0xd0);
|
||||
}
|
||||
|
||||
public boolean destinationCompressed() {
|
||||
// Apparently, it's the second least significant bit
|
||||
return (format & 2) > 0;
|
||||
}
|
||||
|
||||
public static VisioPointer getPointerAt(byte[] data, int offset) {
|
||||
VisioPointer p = new VisioPointer();
|
||||
p.type = LittleEndian.getInt(data, offset+0);
|
||||
p.address = LittleEndian.getUInt(data, offset+4);
|
||||
p.offset = LittleEndian.getUInt(data, offset+8);
|
||||
p.length = LittleEndian.getUInt(data, offset+12);
|
||||
p.format = LittleEndian.getShort(data, offset+16);
|
||||
|
||||
return p;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,80 @@
|
|||
/**
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 3 of the License.
|
||||
*
|
||||
* This program 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 for more details.
|
||||
*/
|
||||
package org.apache.poi.hdgf;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
|
||||
/**
|
||||
* A decoder for the crazy LZW implementation used
|
||||
* in Visio.
|
||||
* This is a port of vsd_inflate.c from vsdump
|
||||
* (http://www.gnome.ru/projects/vsdump_en.html)
|
||||
*/
|
||||
public class LZW4HDGF {
|
||||
|
||||
public byte fromInt(int b) {
|
||||
if(b < 128) return (byte)b;
|
||||
return (byte)(b - 256);
|
||||
}
|
||||
|
||||
public byte[] decode(InputStream src) throws IOException {
|
||||
ByteArrayOutputStream res = new ByteArrayOutputStream();
|
||||
int pos = 0;
|
||||
int flag;
|
||||
byte[] buffer = new byte[4096];
|
||||
buffer[0] = 0;
|
||||
|
||||
byte data;
|
||||
int tmp;
|
||||
int addr1, addr2;
|
||||
int len, pntr;
|
||||
|
||||
while ( (flag = src.read()) != -1 ) {
|
||||
for (int mask = 1; mask < 0x100 ; mask <<= 1) {
|
||||
if ( (flag & mask) > 0) {
|
||||
if( (tmp = src.read()) != -1) {
|
||||
buffer[(pos&4095)] = fromInt(tmp);
|
||||
pos++;
|
||||
res.write( new byte[] {fromInt(tmp)} );
|
||||
}
|
||||
} else {
|
||||
tmp = src.read();
|
||||
if(tmp == -1) break;
|
||||
addr1 = tmp;
|
||||
|
||||
tmp = src.read();
|
||||
if(tmp == -1) break;
|
||||
addr2 = tmp;
|
||||
|
||||
len = (addr2 & 15) + 3;
|
||||
pntr = (addr2 & 240)*16 + addr1;
|
||||
|
||||
if(pntr > 4078) {
|
||||
pntr = pntr - 4078;
|
||||
} else {
|
||||
pntr = pntr + 18;
|
||||
}
|
||||
|
||||
for(int i=0; i<len; i++) {
|
||||
buffer [(pos + i) & 4095] = buffer [(pntr + i) & 4095];
|
||||
data = buffer[(pntr + i ) & 4095];
|
||||
res.write(new byte[] {data});
|
||||
}
|
||||
|
||||
pos = pos + len;
|
||||
}
|
||||
}
|
||||
}
|
||||
return res.toByteArray();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,101 @@
|
|||
/* ====================================================================
|
||||
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
contributor license agreements. See the NOTICE file distributed with
|
||||
this work for additional information regarding copyright ownership.
|
||||
The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
(the "License"); you may not use this file except in compliance with
|
||||
the License. You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
package org.apache.poi.hdgf;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
|
||||
import junit.framework.TestCase;
|
||||
|
||||
public class TestLZW4HDGF extends TestCase {
|
||||
public static final byte[] testTrailerComp = new byte[] {
|
||||
123, -60, 2, -21, -16, 1, 0, 0, -72, -13, -16, 78, -32, -5, 1,
|
||||
0, 3, -21, -16, 10, 5, 4, -21, -16, 21, 9, -21, -16, 103, -21,
|
||||
-16, 34, -36, -1, 52, 15, 70, 15, 120, 88, 15, -7, -2, -28, -9,
|
||||
-123, 21, 0, 44, -122, 1, -4, 104, 15, -24, -13, 40, -98, 32,
|
||||
78, 102, -67, -1, -2, -30, 64, 40, -67, -113, -73, 116, -98,
|
||||
-85, 2, 66, 123, 9, 109, -85, 2, -89, 14, -56, -69, -83, -79,
|
||||
-34, -3, 120, 110, 75, -9, -10, 20, -6, -25, -12, 22, -21, -16,
|
||||
-12, -81, 67, 1, -128, -70, -21, -16, 84, -21, -16, 70, 0, 23,
|
||||
-21, -16, 76, 47, -40, 79, 1, -44, -21, -16, 32, 3, 18, 12, 17,
|
||||
-43, -68, 17, 16, -8, 21, 22, -1, -21, -16, -84, -1, -35, 79,
|
||||
-9, -10, 96, 0, 46, -21, -16, 44, -39, -41, 79, 1, 119, -13,
|
||||
-16, -106, -13, -16, 84, 0, 125, 26, -21, -16, 68, -38, 79, 1,
|
||||
17, 10, 0, -97, 50, 10, 0, 0, -42, -108, 15, 118, 31, 0, -3, 29,
|
||||
-21, -16, -100, -25, 79, 1, -18, 97, -36, 76, 16, -21, -16, 86,
|
||||
0, 36, -5, 1, -5, 79, 63, 1, -124, 98, 0, 0, 28, 3, 20, -34, -3,
|
||||
125, 33, -21, -16, 100, -4, 79, 1, -92, -91, 16, -22, 24, 19, 41,
|
||||
-21, -16, -44, -59, 16, 108, 100, 0, -21, 0, 71, -105, 18, 39, 85,
|
||||
17, -3, 79, 1, 95, -108, 113, 0, 0, 104, 3, 18, 49, 49, 17, -1, 64,
|
||||
85, 1, 0, 114, 0, 0, -93, -36, -21, -16, 100, 31, 0, 0, -40, -21,
|
||||
-16, -92, 66, 127, 85, 1, 98, 119, 0, 0, -48, 79, 18, -3, 50, -17,
|
||||
1, 67, 85, 1, 81, -127, 0, -41, 0, 14, 6, 4, 17, 63, -63, 17, 68,
|
||||
85, -65, 1, 30, -120, 0, 0, 42, 79, 18, 68, 126, -21, -16, -76, 69,
|
||||
85, 1, 102, -119, 72, 37, 0, 97, 33 };
|
||||
public static final byte[] testTrailerDecomp = new byte[] {
|
||||
-60, 2, 0, 0, 0, 1, 0, 0, -72, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 1, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0,
|
||||
0, 9, 0, 0, 0, 103, 0, 0, 0, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
-123, 21, 0, 44, -123, 21, 0, 44, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40, -98, 32, 78, 102, -67,
|
||||
-2, -30, 64, 40, -67, -113, -73, 116, -67, -2, -30, 64, 40, 66,
|
||||
123, 9, 109, -67, -2, -30, 64, 40, -98, 32, 78, 102, -67, -2, -30,
|
||||
64, 40, -67, -113, -73, 116, -67, -2, -30, 64, -56, -83, -79, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120, 110, 75, 1, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 20, 0, 0, 0, 0, 0, 0, 0, 22, 0, 0, 0, -12, -81, 67,
|
||||
1, -128, 0, 0, 0, 84, 0, 0, 0, 70, 0, 23, 0, 0, 0, 76, -40, 79, 1,
|
||||
-44, 0, 0, 0, 32, 0, 0, 0, 84, 0, 23, 0, 0, 0, -68, -40, 79, 1, -8,
|
||||
0, 0, 0, 32, 0, 0, 0, 84, 0, -1, 0, 0, 0, -84, -1, 79, 1, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 96, 0, 46, 0, 0, 0, 44, -39, 79, 1, 119, 1, 0, 0,
|
||||
-106, 1, 0, 0, 84, 0, 26, 0, 0, 0, 68, -38, 79, 1, 17, 3, 0, 0,
|
||||
50, 10, 0, 0, -42, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
29, 0, 0, 0, -100, -25, 79, 1, -18, 97, 0, 0, -106, 0, 0, 0, 86, 0,
|
||||
36, 0, 0, 0, -12, -5, 79, 1, -124, 98, 0, 0, 28, 0, 0, 0, 84, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 33, 0, 0, 0, 100,
|
||||
-4, 79, 1, -92, 98, 0, 0, 32, 0, 0, 0, 84, 0, 41, 0, 0, 0, -44, -4,
|
||||
79, 1, 108, 100, 0, 0, 71, 0, 0, 0, 86, 0, 39, 0, 0, 0, 68, -3, 79,
|
||||
1, -108, 113, 0, 0, 104, 0, 0, 0, 84, 0, 49, 0, 0, 0, -84, 64, 85,
|
||||
1, 0, 114, 0, 0, -93, 0, 0, 0, -42, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, -40, 0, 0, 0, -92, 66, 85, 1, 98, 119,
|
||||
0, 0, -48, 1, 0, 0, 84, 0, 50, 0, 0, 0, 20, 67, 85, 1, 81, -127,
|
||||
0, 0, 14, 6, 0, 0, 84, 0, 63, 0, 0, 0, 100, 68, 85, 1, 30, -120,
|
||||
0, 0, 42, 1, 0, 0, 84, 0, 68, 0, 0, 0, -76, 69, 85, 1, 102, -119,
|
||||
0, 0, 42, 1, 0, 0, 84, 0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
public void testCounts() throws Exception {
|
||||
assertEquals(339, testTrailerComp.length);
|
||||
assertEquals(632, testTrailerDecomp.length);
|
||||
|
||||
// Decode it using our engine
|
||||
LZW4HDGF lzw2 = new LZW4HDGF();
|
||||
byte[] dec = lzw2.decode(new ByteArrayInputStream(testTrailerComp));
|
||||
|
||||
// Check it's of the right size
|
||||
assertEquals(632, dec.length);
|
||||
|
||||
// Now check it matches
|
||||
for(int i=0; i<dec.length; i++) {
|
||||
if(dec[i] != testTrailerDecomp[i])
|
||||
System.err.println(i + "\t" + dec[i] + "\t" + testTrailerDecomp[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue