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Side by Side Diff: core/fxcodec/jbig2/JBig2_BitStream.cpp

Issue 1832173003: Remove FX_DWORD from core/ and delete definition (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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1 // Copyright 2015 PDFium Authors. All rights reserved. 1 // Copyright 2015 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 "core/fxcodec/jbig2/JBig2_BitStream.h" 7 #include "core/fxcodec/jbig2/JBig2_BitStream.h"
8 8
9 #include <algorithm> 9 #include <algorithm>
10 10
11 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" 11 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
12 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h" 12 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h"
13 13
14 CJBig2_BitStream::CJBig2_BitStream(CPDF_StreamAcc* pSrcStream) 14 CJBig2_BitStream::CJBig2_BitStream(CPDF_StreamAcc* pSrcStream)
15 : m_pBuf(pSrcStream->GetData()), 15 : m_pBuf(pSrcStream->GetData()),
16 m_dwLength(pSrcStream->GetSize()), 16 m_dwLength(pSrcStream->GetSize()),
17 m_dwByteIdx(0), 17 m_dwByteIdx(0),
18 m_dwBitIdx(0), 18 m_dwBitIdx(0),
19 m_dwObjNum(pSrcStream->GetStream() ? pSrcStream->GetStream()->GetObjNum() 19 m_dwObjNum(pSrcStream->GetStream() ? pSrcStream->GetStream()->GetObjNum()
20 : 0) { 20 : 0) {
21 if (m_dwLength > 256 * 1024 * 1024) { 21 if (m_dwLength > 256 * 1024 * 1024) {
22 m_dwLength = 0; 22 m_dwLength = 0;
23 m_pBuf = nullptr; 23 m_pBuf = nullptr;
24 } 24 }
25 } 25 }
26 26
27 CJBig2_BitStream::~CJBig2_BitStream() {} 27 CJBig2_BitStream::~CJBig2_BitStream() {}
28 28
29 int32_t CJBig2_BitStream::readNBits(FX_DWORD dwBits, FX_DWORD* dwResult) { 29 int32_t CJBig2_BitStream::readNBits(uint32_t dwBits, uint32_t* dwResult) {
30 FX_DWORD dwBitPos = getBitPos(); 30 uint32_t dwBitPos = getBitPos();
31 if (dwBitPos > LengthInBits()) 31 if (dwBitPos > LengthInBits())
32 return -1; 32 return -1;
33 33
34 *dwResult = 0; 34 *dwResult = 0;
35 if (dwBitPos + dwBits <= LengthInBits()) 35 if (dwBitPos + dwBits <= LengthInBits())
36 dwBitPos = dwBits; 36 dwBitPos = dwBits;
37 else 37 else
38 dwBitPos = LengthInBits() - dwBitPos; 38 dwBitPos = LengthInBits() - dwBitPos;
39 39
40 for (; dwBitPos > 0; --dwBitPos) { 40 for (; dwBitPos > 0; --dwBitPos) {
41 *dwResult = 41 *dwResult =
42 (*dwResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01); 42 (*dwResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01);
43 AdvanceBit(); 43 AdvanceBit();
44 } 44 }
45 return 0; 45 return 0;
46 } 46 }
47 47
48 int32_t CJBig2_BitStream::readNBits(FX_DWORD dwBits, int32_t* nResult) { 48 int32_t CJBig2_BitStream::readNBits(uint32_t dwBits, int32_t* nResult) {
49 FX_DWORD dwBitPos = getBitPos(); 49 uint32_t dwBitPos = getBitPos();
50 if (dwBitPos > LengthInBits()) 50 if (dwBitPos > LengthInBits())
51 return -1; 51 return -1;
52 52
53 *nResult = 0; 53 *nResult = 0;
54 if (dwBitPos + dwBits <= LengthInBits()) 54 if (dwBitPos + dwBits <= LengthInBits())
55 dwBitPos = dwBits; 55 dwBitPos = dwBits;
56 else 56 else
57 dwBitPos = LengthInBits() - dwBitPos; 57 dwBitPos = LengthInBits() - dwBitPos;
58 58
59 for (; dwBitPos > 0; --dwBitPos) { 59 for (; dwBitPos > 0; --dwBitPos) {
60 *nResult = 60 *nResult =
61 (*nResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01); 61 (*nResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01);
62 AdvanceBit(); 62 AdvanceBit();
63 } 63 }
64 return 0; 64 return 0;
65 } 65 }
66 66
67 int32_t CJBig2_BitStream::read1Bit(FX_DWORD* dwResult) { 67 int32_t CJBig2_BitStream::read1Bit(uint32_t* dwResult) {
68 if (!IsInBound()) 68 if (!IsInBound())
69 return -1; 69 return -1;
70 70
71 *dwResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01; 71 *dwResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01;
72 AdvanceBit(); 72 AdvanceBit();
73 return 0; 73 return 0;
74 } 74 }
75 75
76 int32_t CJBig2_BitStream::read1Bit(FX_BOOL* bResult) { 76 int32_t CJBig2_BitStream::read1Bit(FX_BOOL* bResult) {
77 if (!IsInBound()) 77 if (!IsInBound())
78 return -1; 78 return -1;
79 79
80 *bResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01; 80 *bResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01;
81 AdvanceBit(); 81 AdvanceBit();
82 return 0; 82 return 0;
83 } 83 }
84 84
85 int32_t CJBig2_BitStream::read1Byte(uint8_t* cResult) { 85 int32_t CJBig2_BitStream::read1Byte(uint8_t* cResult) {
86 if (!IsInBound()) 86 if (!IsInBound())
87 return -1; 87 return -1;
88 88
89 *cResult = m_pBuf[m_dwByteIdx]; 89 *cResult = m_pBuf[m_dwByteIdx];
90 ++m_dwByteIdx; 90 ++m_dwByteIdx;
91 return 0; 91 return 0;
92 } 92 }
93 93
94 int32_t CJBig2_BitStream::readInteger(FX_DWORD* dwResult) { 94 int32_t CJBig2_BitStream::readInteger(uint32_t* dwResult) {
95 if (m_dwByteIdx + 3 >= m_dwLength) 95 if (m_dwByteIdx + 3 >= m_dwLength)
96 return -1; 96 return -1;
97 97
98 *dwResult = (m_pBuf[m_dwByteIdx] << 24) | (m_pBuf[m_dwByteIdx + 1] << 16) | 98 *dwResult = (m_pBuf[m_dwByteIdx] << 24) | (m_pBuf[m_dwByteIdx + 1] << 16) |
99 (m_pBuf[m_dwByteIdx + 2] << 8) | m_pBuf[m_dwByteIdx + 3]; 99 (m_pBuf[m_dwByteIdx + 2] << 8) | m_pBuf[m_dwByteIdx + 3];
100 m_dwByteIdx += 4; 100 m_dwByteIdx += 4;
101 return 0; 101 return 0;
102 } 102 }
103 103
104 int32_t CJBig2_BitStream::readShortInteger(uint16_t* dwResult) { 104 int32_t CJBig2_BitStream::readShortInteger(uint16_t* dwResult) {
(...skipping 22 matching lines...) Expand all
127 } 127 }
128 128
129 uint8_t CJBig2_BitStream::getCurByte_arith() const { 129 uint8_t CJBig2_BitStream::getCurByte_arith() const {
130 return IsInBound() ? m_pBuf[m_dwByteIdx] : 0xFF; 130 return IsInBound() ? m_pBuf[m_dwByteIdx] : 0xFF;
131 } 131 }
132 132
133 uint8_t CJBig2_BitStream::getNextByte_arith() const { 133 uint8_t CJBig2_BitStream::getNextByte_arith() const {
134 return m_dwByteIdx + 1 < m_dwLength ? m_pBuf[m_dwByteIdx + 1] : 0xFF; 134 return m_dwByteIdx + 1 < m_dwLength ? m_pBuf[m_dwByteIdx + 1] : 0xFF;
135 } 135 }
136 136
137 FX_DWORD CJBig2_BitStream::getOffset() const { 137 uint32_t CJBig2_BitStream::getOffset() const {
138 return m_dwByteIdx; 138 return m_dwByteIdx;
139 } 139 }
140 140
141 void CJBig2_BitStream::setOffset(FX_DWORD dwOffset) { 141 void CJBig2_BitStream::setOffset(uint32_t dwOffset) {
142 m_dwByteIdx = std::min(dwOffset, m_dwLength); 142 m_dwByteIdx = std::min(dwOffset, m_dwLength);
143 } 143 }
144 144
145 FX_DWORD CJBig2_BitStream::getBitPos() const { 145 uint32_t CJBig2_BitStream::getBitPos() const {
146 return (m_dwByteIdx << 3) + m_dwBitIdx; 146 return (m_dwByteIdx << 3) + m_dwBitIdx;
147 } 147 }
148 148
149 void CJBig2_BitStream::setBitPos(FX_DWORD dwBitPos) { 149 void CJBig2_BitStream::setBitPos(uint32_t dwBitPos) {
150 m_dwByteIdx = dwBitPos >> 3; 150 m_dwByteIdx = dwBitPos >> 3;
151 m_dwBitIdx = dwBitPos & 7; 151 m_dwBitIdx = dwBitPos & 7;
152 } 152 }
153 153
154 const uint8_t* CJBig2_BitStream::getBuf() const { 154 const uint8_t* CJBig2_BitStream::getBuf() const {
155 return m_pBuf; 155 return m_pBuf;
156 } 156 }
157 157
158 const uint8_t* CJBig2_BitStream::getPointer() const { 158 const uint8_t* CJBig2_BitStream::getPointer() const {
159 return m_pBuf + m_dwByteIdx; 159 return m_pBuf + m_dwByteIdx;
160 } 160 }
161 161
162 void CJBig2_BitStream::offset(FX_DWORD dwOffset) { 162 void CJBig2_BitStream::offset(uint32_t dwOffset) {
163 m_dwByteIdx += dwOffset; 163 m_dwByteIdx += dwOffset;
164 } 164 }
165 165
166 FX_DWORD CJBig2_BitStream::getByteLeft() const { 166 uint32_t CJBig2_BitStream::getByteLeft() const {
167 return m_dwLength - m_dwByteIdx; 167 return m_dwLength - m_dwByteIdx;
168 } 168 }
169 169
170 void CJBig2_BitStream::AdvanceBit() { 170 void CJBig2_BitStream::AdvanceBit() {
171 if (m_dwBitIdx == 7) { 171 if (m_dwBitIdx == 7) {
172 ++m_dwByteIdx; 172 ++m_dwByteIdx;
173 m_dwBitIdx = 0; 173 m_dwBitIdx = 0;
174 } else { 174 } else {
175 ++m_dwBitIdx; 175 ++m_dwBitIdx;
176 } 176 }
177 } 177 }
178 178
179 bool CJBig2_BitStream::IsInBound() const { 179 bool CJBig2_BitStream::IsInBound() const {
180 return m_dwByteIdx < m_dwLength; 180 return m_dwByteIdx < m_dwLength;
181 } 181 }
182 182
183 FX_DWORD CJBig2_BitStream::LengthInBits() const { 183 uint32_t CJBig2_BitStream::LengthInBits() const {
184 return m_dwLength << 3; 184 return m_dwLength << 3;
185 } 185 }
186 186
187 FX_DWORD CJBig2_BitStream::getObjNum() const { 187 uint32_t CJBig2_BitStream::getObjNum() const {
188 return m_dwObjNum; 188 return m_dwObjNum;
189 } 189 }
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