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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "JBig2_HuffmanTable.h" | 7 #include "JBig2_HuffmanTable.h" |
8 #include "JBig2_BitStream.h" | 8 #include "JBig2_BitStream.h" |
9 #include <string.h> | 9 #include <string.h> |
10 | 10 |
11 CJBig2_HuffmanTable::CJBig2_HuffmanTable(const JBig2TableLine *pTable, int nLine
s, | 11 CJBig2_HuffmanTable::CJBig2_HuffmanTable(const JBig2TableLine *pTable, int nLine
s, |
12 bool bHTOOB) | 12 FX_BOOL bHTOOB) |
13 { | 13 { |
14 init(); | 14 init(); |
15 m_bOK = parseFromStandardTable(pTable, nLines, bHTOOB); | 15 m_bOK = parseFromStandardTable(pTable, nLines, bHTOOB); |
16 } | 16 } |
17 | 17 |
18 CJBig2_HuffmanTable::CJBig2_HuffmanTable(CJBig2_BitStream *pStream) | 18 CJBig2_HuffmanTable::CJBig2_HuffmanTable(CJBig2_BitStream *pStream) |
19 { | 19 { |
20 init(); | 20 init(); |
21 m_bOK = parseFromCodedBuffer(pStream); | 21 m_bOK = parseFromCodedBuffer(pStream); |
22 } | 22 } |
23 | 23 |
24 CJBig2_HuffmanTable::~CJBig2_HuffmanTable() | 24 CJBig2_HuffmanTable::~CJBig2_HuffmanTable() |
25 { | 25 { |
26 if(CODES) { | 26 if(CODES) { |
27 m_pModule->JBig2_Free(CODES); | 27 m_pModule->JBig2_Free(CODES); |
28 } | 28 } |
29 if(PREFLEN) { | 29 if(PREFLEN) { |
30 m_pModule->JBig2_Free(PREFLEN); | 30 m_pModule->JBig2_Free(PREFLEN); |
31 } | 31 } |
32 if(RANGELEN) { | 32 if(RANGELEN) { |
33 m_pModule->JBig2_Free(RANGELEN); | 33 m_pModule->JBig2_Free(RANGELEN); |
34 } | 34 } |
35 if(RANGELOW) { | 35 if(RANGELOW) { |
36 m_pModule->JBig2_Free(RANGELOW); | 36 m_pModule->JBig2_Free(RANGELOW); |
37 } | 37 } |
38 } | 38 } |
39 void CJBig2_HuffmanTable::init() | 39 void CJBig2_HuffmanTable::init() |
40 { | 40 { |
41 HTOOB = false; | 41 HTOOB = FALSE; |
42 NTEMP = 0; | 42 NTEMP = 0; |
43 CODES = NULL; | 43 CODES = NULL; |
44 PREFLEN = NULL; | 44 PREFLEN = NULL; |
45 RANGELEN = NULL; | 45 RANGELEN = NULL; |
46 RANGELOW = NULL; | 46 RANGELOW = NULL; |
47 } | 47 } |
48 int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine *pTable, in
t nLines, bool bHTOOB) | 48 int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine *pTable, in
t nLines, FX_BOOL bHTOOB) |
49 { | 49 { |
50 int CURLEN, LENMAX, CURCODE, CURTEMP, i; | 50 int CURLEN, LENMAX, CURCODE, CURTEMP, i; |
51 int *LENCOUNT; | 51 int *LENCOUNT; |
52 int *FIRSTCODE; | 52 int *FIRSTCODE; |
53 HTOOB = bHTOOB; | 53 HTOOB = bHTOOB; |
54 NTEMP = nLines; | 54 NTEMP = nLines; |
55 CODES = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); | 55 CODES = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); |
56 PREFLEN = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); | 56 PREFLEN = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); |
57 RANGELEN = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); | 57 RANGELEN = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); |
58 RANGELOW = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); | 58 RANGELOW = (int*)m_pModule->JBig2_Malloc2(sizeof(int), NTEMP); |
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181 if(PREFLEN[CURTEMP] == CURLEN) { | 181 if(PREFLEN[CURTEMP] == CURLEN) { |
182 CODES[CURTEMP] = CURCODE; | 182 CODES[CURTEMP] = CURCODE; |
183 CURCODE = CURCODE + 1; | 183 CURCODE = CURCODE + 1; |
184 } | 184 } |
185 CURTEMP = CURTEMP + 1; | 185 CURTEMP = CURTEMP + 1; |
186 } | 186 } |
187 CURLEN = CURLEN + 1; | 187 CURLEN = CURLEN + 1; |
188 } | 188 } |
189 m_pModule->JBig2_Free(LENCOUNT); | 189 m_pModule->JBig2_Free(LENCOUNT); |
190 m_pModule->JBig2_Free(FIRSTCODE); | 190 m_pModule->JBig2_Free(FIRSTCODE); |
191 return true; | 191 return TRUE; |
192 failed: | 192 failed: |
193 return false; | 193 return FALSE; |
194 } | 194 } |
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