diff options
Diffstat (limited to 'xfa/src/fgas/src/crt/fx_encode.cpp')
-rw-r--r-- | xfa/src/fgas/src/crt/fx_encode.cpp | 384 |
1 files changed, 192 insertions, 192 deletions
diff --git a/xfa/src/fgas/src/crt/fx_encode.cpp b/xfa/src/fgas/src/crt/fx_encode.cpp index f2c5acb1c1..5c5d547eab 100644 --- a/xfa/src/fgas/src/crt/fx_encode.cpp +++ b/xfa/src/fgas/src/crt/fx_encode.cpp @@ -1,192 +1,192 @@ -// 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
-
-#include "xfa/src/fgas/src/fgas_base.h"
-void FX_SwapByteOrder(FX_WCHAR* pStr, int32_t iLength) {
- FXSYS_assert(pStr != NULL);
- if (iLength < 0) {
- iLength = FXSYS_wcslen(pStr);
- }
- FX_WORD wch;
- if (sizeof(FX_WCHAR) > 2) {
- while (iLength-- > 0) {
- wch = (FX_WORD)*pStr;
- wch = (wch >> 8) | (wch << 8);
- wch &= 0x00FF;
- *pStr++ = wch;
- }
- } else {
- while (iLength-- > 0) {
- wch = (FX_WORD)*pStr;
- wch = (wch >> 8) | (wch << 8);
- *pStr++ = wch;
- }
- }
-}
-void FX_SwapByteOrderCopy(const FX_WCHAR* pSrc,
- FX_WCHAR* pDst,
- int32_t iLength) {
- FXSYS_assert(pSrc != NULL && pDst != NULL);
- if (iLength < 0) {
- iLength = FXSYS_wcslen(pSrc);
- }
- FX_WORD wch;
- if (sizeof(FX_WCHAR) > 2) {
- while (iLength-- > 0) {
- wch = (FX_WORD)*pSrc++;
- wch = (wch >> 8) | (wch << 8);
- wch &= 0x00FF;
- *pDst++ = wch;
- }
- } else {
- while (iLength-- > 0) {
- wch = (FX_WORD)*pSrc++;
- wch = (wch >> 8) | (wch << 8);
- *pDst++ = wch;
- }
- }
-}
-void FX_UTF16ToWChar(void* pBuffer, int32_t iLength) {
- FXSYS_assert(pBuffer != NULL && iLength > 0);
- if (sizeof(FX_WCHAR) == 2) {
- return;
- }
- FX_WORD* pSrc = (FX_WORD*)pBuffer;
- FX_WCHAR* pDst = (FX_WCHAR*)pBuffer;
- while (--iLength >= 0) {
- pDst[iLength] = (FX_WCHAR)pSrc[iLength];
- }
-}
-void FX_UTF16ToWCharCopy(const FX_WORD* pUTF16,
- FX_WCHAR* pWChar,
- int32_t iLength) {
- FXSYS_assert(pUTF16 != NULL && pWChar != NULL && iLength > 0);
- if (sizeof(FX_WCHAR) == 2) {
- FXSYS_memcpy(pWChar, pUTF16, iLength * sizeof(FX_WCHAR));
- } else {
- while (--iLength >= 0) {
- pWChar[iLength] = (FX_WCHAR)pUTF16[iLength];
- }
- }
-}
-void FX_WCharToUTF16(void* pBuffer, int32_t iLength) {
- FXSYS_assert(pBuffer != NULL && iLength > 0);
- if (sizeof(FX_WCHAR) == 2) {
- return;
- }
- const FX_WCHAR* pSrc = (const FX_WCHAR*)pBuffer;
- FX_WORD* pDst = (FX_WORD*)pBuffer;
- while (--iLength >= 0) {
- *pDst++ = (FX_WORD)*pSrc++;
- }
-}
-void FX_WCharToUTF16Copy(const FX_WCHAR* pWChar,
- FX_WORD* pUTF16,
- int32_t iLength) {
- FXSYS_assert(pWChar != NULL && pUTF16 != NULL && iLength > 0);
- if (sizeof(FX_WCHAR) == 2) {
- FXSYS_memcpy(pUTF16, pWChar, iLength * sizeof(FX_WCHAR));
- } else {
- while (--iLength >= 0) {
- *pUTF16++ = (FX_WORD)*pWChar++;
- }
- }
-}
-inline FX_DWORD FX_DWordFromBytes(const uint8_t* pStr) {
- return FXBSTR_ID(pStr[3], pStr[2], pStr[1], pStr[0]);
-}
-inline FX_WORD FX_WordFromBytes(const uint8_t* pStr) {
- return (pStr[1] << 8 | pStr[0]);
-}
-int32_t FX_DecodeString(FX_WORD wCodePage,
- const FX_CHAR* pSrc,
- int32_t* pSrcLen,
- FX_WCHAR* pDst,
- int32_t* pDstLen,
- FX_BOOL bErrBreak) {
- if (wCodePage == FX_CODEPAGE_UTF8) {
- return FX_UTF8Decode(pSrc, pSrcLen, pDst, pDstLen);
- }
- return -1;
-}
-int32_t FX_UTF8Decode(const FX_CHAR* pSrc,
- int32_t* pSrcLen,
- FX_WCHAR* pDst,
- int32_t* pDstLen) {
- if (pSrcLen == NULL || pDstLen == NULL) {
- return -1;
- }
- int32_t iSrcLen = *pSrcLen;
- if (iSrcLen < 1) {
- *pSrcLen = *pDstLen = 0;
- return 1;
- }
- int32_t iDstLen = *pDstLen;
- FX_BOOL bValidDst = (pDst != NULL && iDstLen > 0);
- FX_DWORD dwCode = 0;
- int32_t iPending = 0;
- int32_t iSrcNum = 0, iDstNum = 0;
- int32_t k = 0;
- int32_t iIndex = 0;
- k = 1;
- while (iIndex < iSrcLen) {
- uint8_t byte = (uint8_t) * (pSrc + iIndex);
- if (byte < 0x80) {
- iPending = 0;
- k = 1;
- iDstNum++;
- iSrcNum += k;
- if (bValidDst) {
- *pDst++ = byte;
- if (iDstNum >= iDstLen) {
- break;
- }
- }
- } else if (byte < 0xc0) {
- if (iPending < 1) {
- break;
- }
- iPending--;
- dwCode |= (byte & 0x3f) << (iPending * 6);
- if (iPending == 0) {
- iDstNum++;
- iSrcNum += k;
- if (bValidDst) {
- *pDst++ = dwCode;
- if (iDstNum >= iDstLen) {
- break;
- }
- }
- }
- } else if (byte < 0xe0) {
- iPending = 1;
- k = 2;
- dwCode = (byte & 0x1f) << 6;
- } else if (byte < 0xf0) {
- iPending = 2;
- k = 3;
- dwCode = (byte & 0x0f) << 12;
- } else if (byte < 0xf8) {
- iPending = 3;
- k = 4;
- dwCode = (byte & 0x07) << 18;
- } else if (byte < 0xfc) {
- iPending = 4;
- k = 5;
- dwCode = (byte & 0x03) << 24;
- } else if (byte < 0xfe) {
- iPending = 5;
- k = 6;
- dwCode = (byte & 0x01) << 30;
- } else {
- break;
- }
- iIndex++;
- }
- *pSrcLen = iSrcNum;
- *pDstLen = iDstNum;
- return 1;
-}
+// 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 + +#include "xfa/src/fgas/src/fgas_base.h" +void FX_SwapByteOrder(FX_WCHAR* pStr, int32_t iLength) { + FXSYS_assert(pStr != NULL); + if (iLength < 0) { + iLength = FXSYS_wcslen(pStr); + } + FX_WORD wch; + if (sizeof(FX_WCHAR) > 2) { + while (iLength-- > 0) { + wch = (FX_WORD)*pStr; + wch = (wch >> 8) | (wch << 8); + wch &= 0x00FF; + *pStr++ = wch; + } + } else { + while (iLength-- > 0) { + wch = (FX_WORD)*pStr; + wch = (wch >> 8) | (wch << 8); + *pStr++ = wch; + } + } +} +void FX_SwapByteOrderCopy(const FX_WCHAR* pSrc, + FX_WCHAR* pDst, + int32_t iLength) { + FXSYS_assert(pSrc != NULL && pDst != NULL); + if (iLength < 0) { + iLength = FXSYS_wcslen(pSrc); + } + FX_WORD wch; + if (sizeof(FX_WCHAR) > 2) { + while (iLength-- > 0) { + wch = (FX_WORD)*pSrc++; + wch = (wch >> 8) | (wch << 8); + wch &= 0x00FF; + *pDst++ = wch; + } + } else { + while (iLength-- > 0) { + wch = (FX_WORD)*pSrc++; + wch = (wch >> 8) | (wch << 8); + *pDst++ = wch; + } + } +} +void FX_UTF16ToWChar(void* pBuffer, int32_t iLength) { + FXSYS_assert(pBuffer != NULL && iLength > 0); + if (sizeof(FX_WCHAR) == 2) { + return; + } + FX_WORD* pSrc = (FX_WORD*)pBuffer; + FX_WCHAR* pDst = (FX_WCHAR*)pBuffer; + while (--iLength >= 0) { + pDst[iLength] = (FX_WCHAR)pSrc[iLength]; + } +} +void FX_UTF16ToWCharCopy(const FX_WORD* pUTF16, + FX_WCHAR* pWChar, + int32_t iLength) { + FXSYS_assert(pUTF16 != NULL && pWChar != NULL && iLength > 0); + if (sizeof(FX_WCHAR) == 2) { + FXSYS_memcpy(pWChar, pUTF16, iLength * sizeof(FX_WCHAR)); + } else { + while (--iLength >= 0) { + pWChar[iLength] = (FX_WCHAR)pUTF16[iLength]; + } + } +} +void FX_WCharToUTF16(void* pBuffer, int32_t iLength) { + FXSYS_assert(pBuffer != NULL && iLength > 0); + if (sizeof(FX_WCHAR) == 2) { + return; + } + const FX_WCHAR* pSrc = (const FX_WCHAR*)pBuffer; + FX_WORD* pDst = (FX_WORD*)pBuffer; + while (--iLength >= 0) { + *pDst++ = (FX_WORD)*pSrc++; + } +} +void FX_WCharToUTF16Copy(const FX_WCHAR* pWChar, + FX_WORD* pUTF16, + int32_t iLength) { + FXSYS_assert(pWChar != NULL && pUTF16 != NULL && iLength > 0); + if (sizeof(FX_WCHAR) == 2) { + FXSYS_memcpy(pUTF16, pWChar, iLength * sizeof(FX_WCHAR)); + } else { + while (--iLength >= 0) { + *pUTF16++ = (FX_WORD)*pWChar++; + } + } +} +inline FX_DWORD FX_DWordFromBytes(const uint8_t* pStr) { + return FXBSTR_ID(pStr[3], pStr[2], pStr[1], pStr[0]); +} +inline FX_WORD FX_WordFromBytes(const uint8_t* pStr) { + return (pStr[1] << 8 | pStr[0]); +} +int32_t FX_DecodeString(FX_WORD wCodePage, + const FX_CHAR* pSrc, + int32_t* pSrcLen, + FX_WCHAR* pDst, + int32_t* pDstLen, + FX_BOOL bErrBreak) { + if (wCodePage == FX_CODEPAGE_UTF8) { + return FX_UTF8Decode(pSrc, pSrcLen, pDst, pDstLen); + } + return -1; +} +int32_t FX_UTF8Decode(const FX_CHAR* pSrc, + int32_t* pSrcLen, + FX_WCHAR* pDst, + int32_t* pDstLen) { + if (pSrcLen == NULL || pDstLen == NULL) { + return -1; + } + int32_t iSrcLen = *pSrcLen; + if (iSrcLen < 1) { + *pSrcLen = *pDstLen = 0; + return 1; + } + int32_t iDstLen = *pDstLen; + FX_BOOL bValidDst = (pDst != NULL && iDstLen > 0); + FX_DWORD dwCode = 0; + int32_t iPending = 0; + int32_t iSrcNum = 0, iDstNum = 0; + int32_t k = 0; + int32_t iIndex = 0; + k = 1; + while (iIndex < iSrcLen) { + uint8_t byte = (uint8_t) * (pSrc + iIndex); + if (byte < 0x80) { + iPending = 0; + k = 1; + iDstNum++; + iSrcNum += k; + if (bValidDst) { + *pDst++ = byte; + if (iDstNum >= iDstLen) { + break; + } + } + } else if (byte < 0xc0) { + if (iPending < 1) { + break; + } + iPending--; + dwCode |= (byte & 0x3f) << (iPending * 6); + if (iPending == 0) { + iDstNum++; + iSrcNum += k; + if (bValidDst) { + *pDst++ = dwCode; + if (iDstNum >= iDstLen) { + break; + } + } + } + } else if (byte < 0xe0) { + iPending = 1; + k = 2; + dwCode = (byte & 0x1f) << 6; + } else if (byte < 0xf0) { + iPending = 2; + k = 3; + dwCode = (byte & 0x0f) << 12; + } else if (byte < 0xf8) { + iPending = 3; + k = 4; + dwCode = (byte & 0x07) << 18; + } else if (byte < 0xfc) { + iPending = 4; + k = 5; + dwCode = (byte & 0x03) << 24; + } else if (byte < 0xfe) { + iPending = 5; + k = 6; + dwCode = (byte & 0x01) << 30; + } else { + break; + } + iIndex++; + } + *pSrcLen = iSrcNum; + *pDstLen = iDstNum; + return 1; +} |