FX_FILESIZE CFXCRT_FileAccess_CRT::GetSize() const
{
if (!m_hFile) {
return 0;
}
FX_FILESIZE pos = (FX_FILESIZE)FXSYS_ftell(m_hFile);
FXSYS_fseek(m_hFile, 0, FXSYS_SEEK_END);
FX_FILESIZE size = (FX_FILESIZE)FXSYS_ftell(m_hFile);
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return size;
}
void CFX_FolderFontInfo::ScanFile(CFX_ByteString& path)
{
FXSYS_FILE* pFile = FXSYS_fopen(path, "rb");
if (pFile == NULL) {
return;
}
FXSYS_fseek(pFile, 0, FXSYS_SEEK_END);
FX_DWORD filesize = FXSYS_ftell(pFile);
FX_BYTE buffer[16];
FXSYS_fseek(pFile, 0, FXSYS_SEEK_SET);
size_t readCnt = FXSYS_fread(buffer, 12, 1, pFile);
if (GET_TT_LONG(buffer) == 0x74746366) {
FX_DWORD nFaces = GET_TT_LONG(buffer + 8);
FX_LPBYTE offsets = FX_Alloc(FX_BYTE, nFaces * 4);
if (!offsets) {
FXSYS_fclose(pFile);
return;
}
readCnt = FXSYS_fread(offsets, nFaces * 4, 1, pFile);
for (FX_DWORD i = 0; i < nFaces; i ++) {
FX_LPBYTE p = offsets + i * 4;
ReportFace(path, pFile, filesize, GET_TT_LONG(p));
}
FX_Free(offsets);
} else {
ReportFace(path, pFile, filesize, 0);
}
FXSYS_fclose(pFile);
}
FX_FILESIZE CFXCRT_FileAccess_CRT::GetPosition() const
{
if (!m_hFile) {
return (FX_FILESIZE) - 1;
}
return (FX_FILESIZE)FXSYS_ftell(m_hFile);
}
FX_FILESIZE CFXCRT_FileAccess_CRT::SetPosition(FX_FILESIZE pos)
{
if (!m_hFile) {
return (FX_FILESIZE) - 1;
}
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return (FX_FILESIZE)FXSYS_ftell(m_hFile);
}
void CFX_FolderFontInfo::ScanFile(CFX_ByteString& path)
{
FXSYS_FILE* pFile = FXSYS_fopen(path, "rb");
if (pFile == NULL) {
return;
}
FXSYS_fseek(pFile, 0, FXSYS_SEEK_END);
FX_DWORD filesize = FXSYS_ftell(pFile);
uint8_t buffer[16];
FXSYS_fseek(pFile, 0, FXSYS_SEEK_SET);
size_t readCnt = FXSYS_fread(buffer, 12, 1, pFile);
if (readCnt != 1) {
FXSYS_fclose(pFile);
return;
}
if (GET_TT_LONG(buffer) == 0x74746366) {
FX_DWORD nFaces = GET_TT_LONG(buffer + 8);
if (nFaces > std::numeric_limits<FX_DWORD>::max() / 4) {
FXSYS_fclose(pFile);
return;
}
FX_DWORD face_bytes = nFaces * 4;
uint8_t* offsets = FX_Alloc(uint8_t, face_bytes);
readCnt = FXSYS_fread(offsets, face_bytes, 1, pFile);
if (readCnt != face_bytes) {
FX_Free(offsets);
FXSYS_fclose(pFile);
return;
}
for (FX_DWORD i = 0; i < nFaces; i ++) {
uint8_t* p = offsets + i * 4;
ReportFace(path, pFile, filesize, GET_TT_LONG(p));
}
FX_Free(offsets);
} else {
ReportFace(path, pFile, filesize, 0);
}
FXSYS_fclose(pFile);
}