diff options
author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-23 17:28:10 -0700 |
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committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-23 17:41:56 -0700 |
commit | 3f3b45cc74b0499912409f766a595945dbbfc4c5 (patch) | |
tree | ec400b6965477b88ea7f0d335f7e5c52044c346c /core/src/fxcodec/jbig2/JBig2_BitStream.h | |
parent | 6fe4aed948337175f6f7f81bb03c37b9c7f535da (diff) | |
download | pdfium-3f3b45cc74b0499912409f766a595945dbbfc4c5.tar.xz |
Convert all line endings to LF.
Diffstat (limited to 'core/src/fxcodec/jbig2/JBig2_BitStream.h')
-rw-r--r-- | core/src/fxcodec/jbig2/JBig2_BitStream.h | 632 |
1 files changed, 316 insertions, 316 deletions
diff --git a/core/src/fxcodec/jbig2/JBig2_BitStream.h b/core/src/fxcodec/jbig2/JBig2_BitStream.h index 8ed473a150..9d5d29468f 100644 --- a/core/src/fxcodec/jbig2/JBig2_BitStream.h +++ b/core/src/fxcodec/jbig2/JBig2_BitStream.h @@ -1,316 +1,316 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef _JBIG2_BIT_STREAM_H_
-#define _JBIG2_BIT_STREAM_H_
-#include "JBig2_Define.h"
-class CJBig2_BitStream : public CJBig2_Object
-{
-public:
-
- CJBig2_BitStream(FX_BYTE *pBuffer, FX_DWORD dwLength);
-
- CJBig2_BitStream(CJBig2_BitStream &bs);
-
- ~CJBig2_BitStream();
-
- FX_INT32 readNBits(FX_DWORD nBits, FX_DWORD *dwResult);
-
- FX_INT32 readNBits(FX_DWORD nBits, FX_INT32 *nResult);
-
- FX_INT32 read1Bit(FX_DWORD *dwResult);
-
- FX_INT32 read1Bit(FX_BOOL *bResult);
-
- FX_INT32 read1Byte(FX_BYTE *cResult);
-
- FX_INT32 readInteger(FX_DWORD *dwResult);
-
- FX_INT32 readShortInteger(FX_WORD *wResult);
-
- void alignByte();
-
- void align4Byte();
-
- FX_BYTE getAt(FX_DWORD dwOffset);
-
- FX_BYTE getCurByte();
-
- FX_BYTE getNextByte();
-
- FX_INT32 incByteIdx();
-
- FX_BYTE getCurByte_arith();
-
- FX_BYTE getNextByte_arith();
-
- FX_DWORD getOffset();
-
- void setOffset(FX_DWORD dwOffset);
-
- FX_DWORD getBitPos();
-
- void setBitPos(FX_DWORD dwBitPos);
-
- FX_BYTE *getBuf();
-
- FX_DWORD getLength()
- {
- return m_dwLength;
- }
-
- FX_BYTE *getPointer();
-
- void offset(FX_DWORD dwOffset);
-
- FX_DWORD getByteLeft();
-private:
-
- FX_BYTE *m_pBuf;
-
- FX_DWORD m_dwLength;
-
- FX_DWORD m_dwByteIdx;
-
- FX_DWORD m_dwBitIdx;
-};
-inline CJBig2_BitStream::CJBig2_BitStream(FX_BYTE *pBuffer, FX_DWORD dwLength)
-{
- m_pBuf = pBuffer;
- m_dwLength = dwLength;
- m_dwByteIdx = 0;
- m_dwBitIdx = 0;
- if (m_dwLength > 256 * 1024 * 1024) {
- m_dwLength = 0;
- m_pBuf = NULL;
- }
-}
-inline CJBig2_BitStream::CJBig2_BitStream(CJBig2_BitStream &bs)
-{
- m_pBuf = bs.m_pBuf;
- m_dwLength = bs.m_dwLength;
- m_dwByteIdx = bs.m_dwByteIdx;
- m_dwBitIdx = bs.m_dwBitIdx;
-}
-inline CJBig2_BitStream::~CJBig2_BitStream()
-{
-}
-inline FX_INT32 CJBig2_BitStream::readNBits(FX_DWORD dwBits, FX_DWORD *dwResult)
-{
- FX_DWORD dwTemp = (m_dwByteIdx << 3) + m_dwBitIdx;
- if(dwTemp <= (m_dwLength << 3)) {
- *dwResult = 0;
- if(dwTemp + dwBits <= (m_dwLength << 3)) {
- dwTemp = dwBits;
- } else {
- dwTemp = (m_dwLength << 3) - dwTemp;
- }
- while(dwTemp > 0) {
- *dwResult = (*dwResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01);
- if(m_dwBitIdx == 7) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- } else {
- m_dwBitIdx ++;
- }
- dwTemp --;
- }
- return 0;
- } else {
- return -1;
- }
-}
-inline FX_INT32 CJBig2_BitStream::readNBits(FX_DWORD dwBits, FX_INT32 *nResult)
-{
- FX_DWORD dwTemp = (m_dwByteIdx << 3) + m_dwBitIdx;
- if(dwTemp <= (m_dwLength << 3)) {
- *nResult = 0;
- if(dwTemp + dwBits <= (m_dwLength << 3)) {
- dwTemp = dwBits;
- } else {
- dwTemp = (m_dwLength << 3) - dwTemp;
- }
- while(dwTemp > 0) {
- *nResult = (*nResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01);
- if(m_dwBitIdx == 7) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- } else {
- m_dwBitIdx ++;
- }
- dwTemp --;
- }
- return 0;
- } else {
- return -1;
- }
-}
-
-inline FX_INT32 CJBig2_BitStream::read1Bit(FX_DWORD *dwResult)
-{
- if(m_dwByteIdx < m_dwLength) {
- *dwResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01;
- if(m_dwBitIdx == 7) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- } else {
- m_dwBitIdx ++;
- }
- return 0;
- } else {
- return -1;
- }
-}
-
-inline FX_INT32 CJBig2_BitStream::read1Bit(FX_BOOL *bResult)
-{
- if(m_dwByteIdx < m_dwLength) {
- *bResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01;
- if(m_dwBitIdx == 7) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- } else {
- m_dwBitIdx ++;
- }
- return 0;
- } else {
- return -1;
- }
-}
-inline FX_INT32 CJBig2_BitStream::read1Byte(FX_BYTE *cResult)
-{
- if(m_dwByteIdx < m_dwLength) {
- *cResult = m_pBuf[m_dwByteIdx];
- m_dwByteIdx ++;
- return 0;
- } else {
- return -1;
- }
-}
-
-inline FX_INT32 CJBig2_BitStream::readInteger(FX_DWORD *dwResult)
-{
- if(m_dwByteIdx + 3 < m_dwLength) {
- *dwResult = (m_pBuf[m_dwByteIdx] << 24) | (m_pBuf[m_dwByteIdx + 1] << 16)
- | (m_pBuf[m_dwByteIdx + 2] << 8) | m_pBuf[m_dwByteIdx + 3];
- m_dwByteIdx += 4;
- return 0;
- } else {
- return -1;
- }
-}
-
-inline FX_INT32 CJBig2_BitStream::readShortInteger(FX_WORD *dwResult)
-{
- if(m_dwByteIdx + 1 < m_dwLength) {
- *dwResult = (m_pBuf[m_dwByteIdx] << 8) | m_pBuf[m_dwByteIdx + 1];
- m_dwByteIdx += 2;
- return 0;
- } else {
- return -1;
- }
-}
-inline void CJBig2_BitStream::alignByte()
-{
- if(m_dwBitIdx != 0) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- }
-}
-inline void CJBig2_BitStream::align4Byte()
-{
- if(m_dwBitIdx != 0) {
- m_dwByteIdx ++;
- m_dwBitIdx = 0;
- }
- m_dwByteIdx = (m_dwByteIdx + 3) & -4;
-}
-inline FX_BYTE CJBig2_BitStream::getAt(FX_DWORD dwOffset)
-{
- if(dwOffset < m_dwLength) {
- return m_pBuf[dwOffset];
- } else {
- return 0;
- }
-}
-inline FX_BYTE CJBig2_BitStream::getCurByte()
-{
- if(m_dwByteIdx < m_dwLength) {
- return m_pBuf[m_dwByteIdx];
- } else {
- return 0;
- }
-}
-inline FX_BYTE CJBig2_BitStream::getNextByte()
-{
- if(m_dwByteIdx + 1 < m_dwLength) {
- return m_pBuf[m_dwByteIdx + 1];
- } else {
- return 0;
- }
-}
-inline FX_INT32 CJBig2_BitStream::incByteIdx()
-{
- if(m_dwByteIdx < m_dwLength) {
- m_dwByteIdx ++;
- return 0;
- } else {
- return -1;
- }
-}
-inline FX_BYTE CJBig2_BitStream::getCurByte_arith()
-{
- if(m_dwByteIdx < m_dwLength) {
- return m_pBuf[m_dwByteIdx];
- } else {
- return 0xff;
- }
-}
-inline FX_BYTE CJBig2_BitStream::getNextByte_arith()
-{
- if(m_dwByteIdx + 1 < m_dwLength) {
- return m_pBuf[m_dwByteIdx + 1];
- } else {
- return 0xff;
- }
-}
-inline FX_DWORD CJBig2_BitStream::getOffset()
-{
- return m_dwByteIdx;
-}
-inline void CJBig2_BitStream::setOffset(FX_DWORD dwOffset)
-{
- if (dwOffset > m_dwLength) {
- dwOffset = m_dwLength;
- }
- m_dwByteIdx = dwOffset;
-}
-inline FX_DWORD CJBig2_BitStream::getBitPos()
-{
- return (m_dwByteIdx << 3) + m_dwBitIdx;
-}
-inline void CJBig2_BitStream::setBitPos(FX_DWORD dwBitPos)
-{
- m_dwByteIdx = dwBitPos >> 3;
- m_dwBitIdx = dwBitPos & 7;
-}
-inline FX_BYTE *CJBig2_BitStream::getBuf()
-{
- return m_pBuf;
-}
-inline FX_BYTE *CJBig2_BitStream::getPointer()
-{
- return m_pBuf + m_dwByteIdx;
-}
-inline void CJBig2_BitStream::offset(FX_DWORD dwOffset)
-{
- m_dwByteIdx += dwOffset;
-}
-inline FX_DWORD CJBig2_BitStream::getByteLeft()
-{
- return m_dwLength - m_dwByteIdx;
-}
-#endif
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#ifndef _JBIG2_BIT_STREAM_H_ +#define _JBIG2_BIT_STREAM_H_ +#include "JBig2_Define.h" +class CJBig2_BitStream : public CJBig2_Object +{ +public: + + CJBig2_BitStream(FX_BYTE *pBuffer, FX_DWORD dwLength); + + CJBig2_BitStream(CJBig2_BitStream &bs); + + ~CJBig2_BitStream(); + + FX_INT32 readNBits(FX_DWORD nBits, FX_DWORD *dwResult); + + FX_INT32 readNBits(FX_DWORD nBits, FX_INT32 *nResult); + + FX_INT32 read1Bit(FX_DWORD *dwResult); + + FX_INT32 read1Bit(FX_BOOL *bResult); + + FX_INT32 read1Byte(FX_BYTE *cResult); + + FX_INT32 readInteger(FX_DWORD *dwResult); + + FX_INT32 readShortInteger(FX_WORD *wResult); + + void alignByte(); + + void align4Byte(); + + FX_BYTE getAt(FX_DWORD dwOffset); + + FX_BYTE getCurByte(); + + FX_BYTE getNextByte(); + + FX_INT32 incByteIdx(); + + FX_BYTE getCurByte_arith(); + + FX_BYTE getNextByte_arith(); + + FX_DWORD getOffset(); + + void setOffset(FX_DWORD dwOffset); + + FX_DWORD getBitPos(); + + void setBitPos(FX_DWORD dwBitPos); + + FX_BYTE *getBuf(); + + FX_DWORD getLength() + { + return m_dwLength; + } + + FX_BYTE *getPointer(); + + void offset(FX_DWORD dwOffset); + + FX_DWORD getByteLeft(); +private: + + FX_BYTE *m_pBuf; + + FX_DWORD m_dwLength; + + FX_DWORD m_dwByteIdx; + + FX_DWORD m_dwBitIdx; +}; +inline CJBig2_BitStream::CJBig2_BitStream(FX_BYTE *pBuffer, FX_DWORD dwLength) +{ + m_pBuf = pBuffer; + m_dwLength = dwLength; + m_dwByteIdx = 0; + m_dwBitIdx = 0; + if (m_dwLength > 256 * 1024 * 1024) { + m_dwLength = 0; + m_pBuf = NULL; + } +} +inline CJBig2_BitStream::CJBig2_BitStream(CJBig2_BitStream &bs) +{ + m_pBuf = bs.m_pBuf; + m_dwLength = bs.m_dwLength; + m_dwByteIdx = bs.m_dwByteIdx; + m_dwBitIdx = bs.m_dwBitIdx; +} +inline CJBig2_BitStream::~CJBig2_BitStream() +{ +} +inline FX_INT32 CJBig2_BitStream::readNBits(FX_DWORD dwBits, FX_DWORD *dwResult) +{ + FX_DWORD dwTemp = (m_dwByteIdx << 3) + m_dwBitIdx; + if(dwTemp <= (m_dwLength << 3)) { + *dwResult = 0; + if(dwTemp + dwBits <= (m_dwLength << 3)) { + dwTemp = dwBits; + } else { + dwTemp = (m_dwLength << 3) - dwTemp; + } + while(dwTemp > 0) { + *dwResult = (*dwResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01); + if(m_dwBitIdx == 7) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } else { + m_dwBitIdx ++; + } + dwTemp --; + } + return 0; + } else { + return -1; + } +} +inline FX_INT32 CJBig2_BitStream::readNBits(FX_DWORD dwBits, FX_INT32 *nResult) +{ + FX_DWORD dwTemp = (m_dwByteIdx << 3) + m_dwBitIdx; + if(dwTemp <= (m_dwLength << 3)) { + *nResult = 0; + if(dwTemp + dwBits <= (m_dwLength << 3)) { + dwTemp = dwBits; + } else { + dwTemp = (m_dwLength << 3) - dwTemp; + } + while(dwTemp > 0) { + *nResult = (*nResult << 1) | ((m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01); + if(m_dwBitIdx == 7) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } else { + m_dwBitIdx ++; + } + dwTemp --; + } + return 0; + } else { + return -1; + } +} + +inline FX_INT32 CJBig2_BitStream::read1Bit(FX_DWORD *dwResult) +{ + if(m_dwByteIdx < m_dwLength) { + *dwResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01; + if(m_dwBitIdx == 7) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } else { + m_dwBitIdx ++; + } + return 0; + } else { + return -1; + } +} + +inline FX_INT32 CJBig2_BitStream::read1Bit(FX_BOOL *bResult) +{ + if(m_dwByteIdx < m_dwLength) { + *bResult = (m_pBuf[m_dwByteIdx] >> (7 - m_dwBitIdx)) & 0x01; + if(m_dwBitIdx == 7) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } else { + m_dwBitIdx ++; + } + return 0; + } else { + return -1; + } +} +inline FX_INT32 CJBig2_BitStream::read1Byte(FX_BYTE *cResult) +{ + if(m_dwByteIdx < m_dwLength) { + *cResult = m_pBuf[m_dwByteIdx]; + m_dwByteIdx ++; + return 0; + } else { + return -1; + } +} + +inline FX_INT32 CJBig2_BitStream::readInteger(FX_DWORD *dwResult) +{ + if(m_dwByteIdx + 3 < m_dwLength) { + *dwResult = (m_pBuf[m_dwByteIdx] << 24) | (m_pBuf[m_dwByteIdx + 1] << 16) + | (m_pBuf[m_dwByteIdx + 2] << 8) | m_pBuf[m_dwByteIdx + 3]; + m_dwByteIdx += 4; + return 0; + } else { + return -1; + } +} + +inline FX_INT32 CJBig2_BitStream::readShortInteger(FX_WORD *dwResult) +{ + if(m_dwByteIdx + 1 < m_dwLength) { + *dwResult = (m_pBuf[m_dwByteIdx] << 8) | m_pBuf[m_dwByteIdx + 1]; + m_dwByteIdx += 2; + return 0; + } else { + return -1; + } +} +inline void CJBig2_BitStream::alignByte() +{ + if(m_dwBitIdx != 0) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } +} +inline void CJBig2_BitStream::align4Byte() +{ + if(m_dwBitIdx != 0) { + m_dwByteIdx ++; + m_dwBitIdx = 0; + } + m_dwByteIdx = (m_dwByteIdx + 3) & -4; +} +inline FX_BYTE CJBig2_BitStream::getAt(FX_DWORD dwOffset) +{ + if(dwOffset < m_dwLength) { + return m_pBuf[dwOffset]; + } else { + return 0; + } +} +inline FX_BYTE CJBig2_BitStream::getCurByte() +{ + if(m_dwByteIdx < m_dwLength) { + return m_pBuf[m_dwByteIdx]; + } else { + return 0; + } +} +inline FX_BYTE CJBig2_BitStream::getNextByte() +{ + if(m_dwByteIdx + 1 < m_dwLength) { + return m_pBuf[m_dwByteIdx + 1]; + } else { + return 0; + } +} +inline FX_INT32 CJBig2_BitStream::incByteIdx() +{ + if(m_dwByteIdx < m_dwLength) { + m_dwByteIdx ++; + return 0; + } else { + return -1; + } +} +inline FX_BYTE CJBig2_BitStream::getCurByte_arith() +{ + if(m_dwByteIdx < m_dwLength) { + return m_pBuf[m_dwByteIdx]; + } else { + return 0xff; + } +} +inline FX_BYTE CJBig2_BitStream::getNextByte_arith() +{ + if(m_dwByteIdx + 1 < m_dwLength) { + return m_pBuf[m_dwByteIdx + 1]; + } else { + return 0xff; + } +} +inline FX_DWORD CJBig2_BitStream::getOffset() +{ + return m_dwByteIdx; +} +inline void CJBig2_BitStream::setOffset(FX_DWORD dwOffset) +{ + if (dwOffset > m_dwLength) { + dwOffset = m_dwLength; + } + m_dwByteIdx = dwOffset; +} +inline FX_DWORD CJBig2_BitStream::getBitPos() +{ + return (m_dwByteIdx << 3) + m_dwBitIdx; +} +inline void CJBig2_BitStream::setBitPos(FX_DWORD dwBitPos) +{ + m_dwByteIdx = dwBitPos >> 3; + m_dwBitIdx = dwBitPos & 7; +} +inline FX_BYTE *CJBig2_BitStream::getBuf() +{ + return m_pBuf; +} +inline FX_BYTE *CJBig2_BitStream::getPointer() +{ + return m_pBuf + m_dwByteIdx; +} +inline void CJBig2_BitStream::offset(FX_DWORD dwOffset) +{ + m_dwByteIdx += dwOffset; +} +inline FX_DWORD CJBig2_BitStream::getByteLeft() +{ + return m_dwLength - m_dwByteIdx; +} +#endif |