bool CParaFile::OpenFile(const char* sfilename, bool bReadyOnly, const char* relativePath, bool bUseCompressed, uint32 dwWhereToOpen)
{
int32 dwFoundPlace = FILE_NOT_FOUND;
if (!GetDevDirectory().empty() && dwWhereToOpen != FILE_ON_ZIP_ARCHIVE && ((dwWhereToOpen & FILE_ON_ZIP_ARCHIVE) > 0))
{
// in development version, find in current directory and search path and then zip archive
dwWhereToOpen &= (~((uint32)FILE_ON_ZIP_ARCHIVE));
return OpenFile(sfilename, bReadyOnly, relativePath, bUseCompressed, dwWhereToOpen) ||
OpenFile(m_filename.empty() ? sfilename : m_filename.c_str(), bReadyOnly, relativePath, bUseCompressed, FILE_ON_ZIP_ARCHIVE);
}
if ((dwWhereToOpen & FILE_ON_SEARCH_PATH) > 0)
{
dwWhereToOpen &= (~((uint32)FILE_ON_SEARCH_PATH));
std::list<SearchPath>& searchPaths = CFileManager::GetInstance()->GetSearchPaths();
if (searchPaths.size() == 0 || (sfilename[0] == '/') || (sfilename[0] == '\\') || relativePath != NULL)
{
if (dwWhereToOpen!=0)
return OpenFile(sfilename, bReadyOnly, relativePath, bUseCompressed, dwWhereToOpen);
return false;
}
else
{
// find in current directory and zip file, and then in search path
bool bFound = (dwWhereToOpen != 0) && OpenFile(sfilename, bReadyOnly, relativePath, bUseCompressed, dwWhereToOpen);
if (!bFound)
{
if (!m_filename.empty())
sfilename = m_filename.c_str();
list<SearchPath>::iterator itCurCP, itEndCP = searchPaths.end();
for (itCurCP = searchPaths.begin(); !bFound && itCurCP != itEndCP; ++itCurCP)
{
bFound = OpenFile(sfilename, bReadyOnly, (*itCurCP).GetPath().c_str(), bUseCompressed, FILE_ON_DISK);
}
}
return bFound;
}
}
m_bIsOwner = true;
char filename[MAX_PATH];
int i = 0;
int j = 0;
#ifdef WIN32
// remove the heading slash
if ((sfilename[0] == '/') || (sfilename[0] == '\\'))
i++;
#endif
// replace '\\' with '/'
for (; sfilename[i] != '\0' && j<(MAX_PATH - 1); i++, j++)
{
if (sfilename[i] == '\\')
filename[j] = '/';
else
filename[j] = sfilename[i];
}
filename[j] = '\0';
/// append the relative path
if (relativePath != NULL)
{
char sRelativePath[MAX_PATH];
int nLastSlash = -1;
for (int i = 0; relativePath[i] != '\0' && i<(MAX_PATH - 1); i++)
{
if (relativePath[i] == '\\')
sRelativePath[i] = '/';
else
sRelativePath[i] = relativePath[i];
if (sRelativePath[i] == '/')
nLastSlash = i;
}
sRelativePath[nLastSlash + 1] = '\0';
if (sRelativePath[0] != '\0')
{
string sPath = sRelativePath;
sPath.append(filename);
strncpy(filename, sPath.c_str(), MAX_PATH);
}
}
if (m_filename.empty())
m_filename = filename;
if (CFileReplaceMap::GetSingleton().ReplaceFile(m_filename))
{
strcpy(filename, m_filename.c_str());
}
if (bReadyOnly)
{
if (!(!m_filename.empty() && m_filename[0] == ':'))
{
BOOL succ = FALSE;
/// for ready-only file, we will read everything in to the buffer, and close the file handle
if ((dwWhereToOpen & FILE_ON_DISK)>0 && GetDiskFilePriority() >= 0)
{
FileData data = CFileUtils::GetDataFromFile(filename);
if (!data.isNull())
{
m_buffer = data.GetBytes();
m_size = data.GetSize();
data.ReleaseOwnership();
m_eof = FALSE;
succ = TRUE;
}
}
if (!succ && (dwWhereToOpen & FILE_ON_ZIP_ARCHIVE)>0)
{
CFileManager* pFileManager = CFileManager::GetInstance();
/// load from Zip files, if the file does not exist on disk
succ = pFileManager->OpenFile(filename, m_handle);
m_curPos = 0;
if (succ)
{
if (bUseCompressed)
{
DWORD compressedSize = 0;
DWORD uncompressedSize = 0;
if (pFileManager->ReadFileRaw(m_handle, (LPVOID*)(&m_buffer), &compressedSize, &uncompressedSize))
{
m_size = compressedSize;
m_uncompressed_size = uncompressedSize;
// this fix a bug for non-compressed files
if (m_uncompressed_size > 0)
SetIsCompressed(true);
m_eof = false;
}
else
{
m_buffer = 0;
m_eof = true;
}
}
else
{
DWORD s = pFileManager->GetFileSize(m_handle);
DWORD bytesRead = 0;
m_buffer = new char[s + 1];
m_buffer[s] = '\0';
pFileManager->ReadFile(m_handle, m_buffer, s, &bytesRead);
pFileManager->CloseFile(m_handle);
m_size = (size_t)bytesRead;
m_eof = false;
}
}
else
{
m_eof = true;
m_buffer = 0;
}
}
if (!succ && GetDiskFilePriority()<0 && (dwWhereToOpen & FILE_ON_DISK)>0)
{
FileData data = CFileUtils::GetDataFromFile(filename);
if (!data.isNull())
{
m_buffer = data.GetBytes();
m_size = data.GetSize();
data.ReleaseOwnership();
m_eof = FALSE;
succ = TRUE;
}
}
/** extract file to disk for debugging purposes. */
if (m_bExtractFileToDisk && !isEof())
{
string filenameDest = m_strExtractRootPath;
filenameDest.append(filename);
ExtractFileToDisk(filenameDest, false);
}
}
else
{
/** If the file name begins with ':', it is treated as a win32 resource.
e.g.":IDR_FX_OCEANWATER". loads data from a resource of type "TEXTFILE". See MSDN for more information about Windows resources.*/
m_eof = true;
FileData data = CFileUtils::GetResDataFromFile(filename);
if (!data.isNull())
{
m_buffer = data.GetBytes();
m_size = data.GetSize();
data.ReleaseOwnership();
m_bIsOwner = false; // resource file do not need to be deleted on Close().
m_eof = false;
}
}
}
else
{
/// for write-only file, we will save file handle.
m_eof = true; /// set end of file to prevent read access.
if (m_filename == "<memory>")
{
m_bMemoryFile = true;
m_bIsOwner = false;
m_handle.m_pVoidPtr = new StringBuilder();
return true;
}
else
{
FileHandle fileHandle = CFileUtils::OpenFile(filename, false, true);
if (fileHandle.IsValid())
{
m_handle = fileHandle;
m_bDiskFileOpened = true;
return true;
}
else
m_bDiskFileOpened = false;
}
return false;
}
#ifdef FILE_LOGGER_HOOK
if (CFileLogger::GetInstance()->IsBegin())
{
if (!m_eof && !m_filename.empty() && m_filename[0] != ':')
{
CFileLogger::GetInstance()->AddFile(m_filename.c_str(), bReadyOnly);
}
}
#endif
return !m_eof;
}
