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// 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 "../fgas_base.h"
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || _FX_OS_ == _FX_WIN64_
#include <io.h>
#elif _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_LINUX_Mini_
#include <sys/times.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
FX_FLOAT FX_tan(FX_FLOAT a)
{
return (FX_FLOAT)tan(a);
}
FX_FLOAT FX_log(FX_FLOAT b, FX_FLOAT x)
{
return FXSYS_log(x) / FXSYS_log(b);
}
FX_LPWSTR FX_wcsncpy(FX_LPWSTR dstStr, FX_LPCWSTR srcStr, size_t count)
{
FXSYS_assert(dstStr != NULL && srcStr != NULL && count > 0);
for (size_t i = 0; i < count; ++i)
if ((dstStr[i] = srcStr[i]) == L'\0') {
break;
}
return dstStr;
}
FX_INT32 FX_wcsnicmp(FX_LPCWSTR s1, FX_LPCWSTR s2, size_t count)
{
FXSYS_assert(s1 != NULL && s2 != NULL && count > 0);
FX_WCHAR wch1 = 0, wch2 = 0;
while (count-- > 0) {
wch1 = (FX_WCHAR)FX_tolower(*s1++);
wch2 = (FX_WCHAR)FX_tolower(*s2++);
if (wch1 != wch2) {
break;
}
}
return wch1 - wch2;
}
FX_INT32 FX_strnicmp(FX_LPCSTR s1, FX_LPCSTR s2, size_t count)
{
FXSYS_assert(s1 != NULL && s2 != NULL && count > 0);
FX_CHAR ch1 = 0, ch2 = 0;
while (count-- > 0) {
ch1 = (FX_CHAR)FX_tolower(*s1++);
ch2 = (FX_CHAR)FX_tolower(*s2++);
if (ch1 != ch2) {
break;
}
}
return ch1 - ch2;
}
FX_INT32 FX_filelength(FXSYS_FILE *file)
{
FXSYS_assert(file != NULL);
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
return _filelength(_fileno(file));
#else
FX_INT32 iPos = FXSYS_ftell(file);
FXSYS_fseek(file, 0, FXSYS_SEEK_END);
FX_INT32 iLen = FXSYS_ftell(file);
FXSYS_fseek(file, iPos, FXSYS_SEEK_SET);
return iLen;
#endif
}
FX_BOOL FX_fsetsize(FXSYS_FILE *file, FX_INT32 size)
{
FXSYS_assert(file != NULL);
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
return _chsize(_fileno(file), size) == 0;
#elif _FX_OS_ == _FX_WIN32_MOBILE_
HANDLE hFile = _fileno(file);
FX_DWORD dwPos = ::SetFilePointer(hFile, 0, 0, FILE_CURRENT);
::SetFilePointer(hFile, size, 0, FILE_BEGIN);
FX_BOOL bRet = ::SetEndOfFile(hFile);
::SetFilePointer(hFile, (FX_INT32)dwPos, 0, FILE_BEGIN);
return bRet;
#else
return FALSE;
#endif
}
FX_FLOAT FX_strtof(FX_LPCSTR pcsStr, FX_INT32 iLength , FX_INT32 *pUsedLen )
{
FXSYS_assert(pcsStr != NULL);
if (iLength < 0) {
iLength = FXSYS_strlen(pcsStr);
}
return FX_wcstof(CFX_WideString::FromLocal(pcsStr, iLength), iLength, pUsedLen);
}
FX_FLOAT FX_wcstof(FX_LPCWSTR pwsStr, FX_INT32 iLength , FX_INT32 *pUsedLen )
{
FXSYS_assert(pwsStr != NULL);
if (iLength < 0) {
iLength = FXSYS_wcslen(pwsStr);
}
if (iLength == 0) {
return 0.0f;
}
FX_INT32 iUsedLen = 0;
FX_BOOL bNegtive = FALSE;
switch (pwsStr[iUsedLen]) {
case '-':
bNegtive = TRUE;
case '+':
iUsedLen++;
break;
}
FX_FLOAT fValue = 0.0f;
while (iUsedLen < iLength) {
FX_WCHAR wch = pwsStr[iUsedLen];
if (wch >= L'0' && wch <= L'9') {
fValue = fValue * 10.0f + (wch - L'0');
} else {
break;
}
iUsedLen++;
}
if (iUsedLen < iLength && pwsStr[iUsedLen] == L'.') {
FX_FLOAT fPrecise = 0.1f;
while (++iUsedLen < iLength) {
FX_WCHAR wch = pwsStr[iUsedLen];
if (wch >= L'0' && wch <= L'9') {
fValue += (wch - L'0') * fPrecise;
fPrecise *= 0.1f;
} else {
break;
}
}
}
if (pUsedLen) {
*pUsedLen = iUsedLen;
}
return bNegtive ? -fValue : fValue;
}
void FX_memset(FX_LPVOID pBuf, FX_INT32 iValue, size_t size)
{
FXSYS_assert(pBuf != NULL && size > 0 && (size & 0x03) == 0);
FXSYS_assert((((size_t)pBuf) & 0x03) == 0);
FX_DWORD *pStart = (FX_DWORD*)pBuf;
FX_DWORD *pEnd = pStart + (size >> 2);
while (pStart < pEnd) {
*pStart ++ = iValue;
}
}
void FX_memcpy(FX_LPVOID pDst, FX_LPCVOID pSrc, size_t size)
{
FXSYS_assert(pDst != NULL && pSrc != NULL && size > 0 && (size & 0x03) == 0);
FXSYS_assert((((size_t)pDst) & 0x03) == 0 && (((size_t)pSrc) & 0x03) == 0);
FX_DWORD *pStart = (FX_DWORD*)pDst;
FX_DWORD *pEnd = pStart + (size >> 2);
FX_DWORD *pValue = (FX_DWORD*)pSrc;
while (pStart < pEnd) {
*pStart ++ = *pValue ++;
}
}
FX_BOOL FX_IsRelativePath(const CFX_WideStringC &wsUrl)
{
FX_INT32 iUrlLen = wsUrl.GetLength();
if (iUrlLen == 0) {
return TRUE;
}
for (FX_INT32 i = FX_MIN(5, iUrlLen) - 1; i >= 0; --i)
if (wsUrl.GetAt(i) == ':') {
return FALSE;
}
return TRUE;
}
FX_BOOL FX_JoinPath(const CFX_WideStringC &wsBasePath, const CFX_WideStringC &wsRelativePath, CFX_WideString &wsAbsolutePath)
{
if (!FX_IsRelativePath(wsRelativePath)) {
wsAbsolutePath = wsRelativePath;
return TRUE;
}
FX_LPCWSTR pRelStart = wsRelativePath.GetPtr();
FX_LPCWSTR pRelEnd = pRelStart + wsRelativePath.GetLength();
if (pRelStart < pRelEnd) {
switch (*pRelStart) {
case '#':
wsAbsolutePath = CFX_WideString(wsBasePath, wsRelativePath);
return wsAbsolutePath.GetLength() > 0;
case '/':
case '\\':
wsAbsolutePath = wsRelativePath;
return wsAbsolutePath.GetLength() > 0;
}
}
FX_INT32 nBackCount = 0;
for(;;) {
if (pRelStart >= pRelEnd) {
wsAbsolutePath = wsBasePath;
return TRUE;
}
if (*pRelStart != '.') {
break;
}
if (pRelStart + 1 < pRelEnd &&
(pRelStart[1] == '/' || pRelStart[1] == '\\')) {
pRelStart += 2;
} else if (pRelStart + 2 < pRelEnd
&& pRelStart[1] == '.'
&& (pRelStart[2] == '/' || pRelStart[2] == '\\')) {
pRelStart += 3;
nBackCount++;
} else {
return FALSE;
}
}
FX_LPCWSTR pBaseStart = wsBasePath.GetPtr();
FX_LPCWSTR pBaseEnd = pBaseStart + wsBasePath.GetLength();
while(pBaseStart < (--pBaseEnd) && *pBaseEnd != '/' && *pBaseEnd != '\\')
;
if (pBaseStart == pBaseEnd) {
wsAbsolutePath = CFX_WideStringC(pRelStart, pRelEnd - pRelStart);
return wsAbsolutePath.GetLength() > 0;
}
while (nBackCount > 0) {
if (pBaseStart >= (--pBaseEnd)) {
return FALSE;
} else if (*pBaseEnd == '/' || *pBaseEnd == '\\')
if ((--nBackCount) <= 0) {
break;
}
}
wsAbsolutePath = CFX_WideString(CFX_WideStringC(pBaseStart, pBaseEnd - pBaseStart + 1),
CFX_WideStringC(pRelStart, pRelEnd - pRelStart));
return wsAbsolutePath.GetLength() > 0;
}
#ifdef __cplusplus
};
#endif
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