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_BOOL FXFC_LoadFile(FX_LPVOID p, FX_LPCSTR name, FX_LPBYTE& pBuffer, FX_DWORD& size)
{
FXFC_PACKAGE* pPackage = (FXFC_PACKAGE*)p;
FXSYS_fseek(pPackage->m_pFile, pPackage->m_IndexOffset, FXSYS_SEEK_SET);
FX_BYTE buf[128];
for (int i = 0; i < pPackage->m_nFiles; i ++) {
FXSYS_fread(buf, pPackage->m_IndexSize, 1, pPackage->m_pFile);
if (FXSYS_stricmp((FX_LPCSTR)buf, name) == 0) {
FX_DWORD offset = *(FX_DWORD*)&buf[64];
size = *(FX_DWORD*)&buf[68];
pBuffer = FX_Alloc(FX_BYTE, size);
FXSYS_fseek(pPackage->m_pFile, offset, FXSYS_SEEK_SET);
FXSYS_fread(pBuffer, size, 1, pPackage->m_pFile);
if (buf[72]) {
FX_DWORD orig_size;
FX_LPBYTE comp_buf = pBuffer;
CPDF_ModuleMgr::Get()->GetFlateModule()->FlateOrLZWDecode(FALSE, comp_buf, size, FALSE,
0, 0, 0, 0, 0, pBuffer, orig_size);
FX_Free(comp_buf);
size = orig_size;
}
return TRUE;
}
}
return FALSE;
}
size_t CFXCRT_FileAccess_CRT::Read(void* pBuffer, size_t szBuffer)
{
if (!m_hFile) {
return 0;
}
return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
}
size_t CFXCRT_FileAccess_CRT::ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos)
{
if (!m_hFile) {
return (FX_FILESIZE) - 1;
}
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
}
static CFX_ByteString _FPDF_ReadStringFromFile(FXSYS_FILE* pFile, FX_DWORD size)
{
CFX_ByteString buffer;
if (!FXSYS_fread(buffer.GetBuffer(size), size, 1, pFile)) {
return CFX_ByteString();
}
buffer.ReleaseBuffer(size);
return buffer;
}
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);
}
FX_LPVOID FXFC_LoadPackage(FX_LPCSTR name)
{
FXSYS_FILE* file = FXSYS_fopen(name, (FX_LPCSTR)"rb");
if (file == NULL) {
return NULL;
}
FX_BYTE buf[256];
FXSYS_fread(buf, 1, 20, file);
if (*(FX_DWORD*)buf != 0x43465846) {
FXSYS_fclose(file);
return NULL;
}
FXFC_PACKAGE* pPackage = FX_Alloc(FXFC_PACKAGE, 1);
pPackage->m_pFile = file;
pPackage->m_nFiles = *(int*)(buf + 8);
pPackage->m_IndexSize = *(int*)(buf + 12);
pPackage->m_IndexOffset = *(int*)(buf + 16);
return pPackage;
}
FX_DWORD CFX_FolderFontInfo::GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size)
{
if (hFont == NULL) {
return 0;
}
CFontFaceInfo* pFont = (CFontFaceInfo*)hFont;
FXSYS_FILE* pFile = NULL;
if (size > 0) {
pFile = FXSYS_fopen(pFont->m_FilePath, "rb");
if (pFile == NULL) {
return 0;
}
}
FX_DWORD datasize = 0;
FX_DWORD offset;
if (table == 0) {
datasize = pFont->m_FontOffset ? 0 : pFont->m_FileSize;
offset = 0;
} else if (table == 0x74746366) {
datasize = pFont->m_FontOffset ? pFont->m_FileSize : 0;
offset = 0;
} else {
FX_DWORD nTables = pFont->m_FontTables.GetLength() / 16;
for (FX_DWORD i = 0; i < nTables; i ++) {
FX_LPCBYTE p = (FX_LPCBYTE)pFont->m_FontTables + i * 16;
if (GET_TT_LONG(p) == table) {
offset = GET_TT_LONG(p + 8);
datasize = GET_TT_LONG(p + 12);
}
}
}
if (datasize && size >= datasize && pFile) {
FXSYS_fseek(pFile, offset, FXSYS_SEEK_SET);
size_t readCnt = FXSYS_fread(buffer, datasize, 1, pFile);
}
if (pFile) {
FXSYS_fclose(pFile);
}
return datasize;
}
void CFX_FolderFontInfo::ReportFace(CFX_ByteString& path, FXSYS_FILE* pFile, FX_DWORD filesize, FX_DWORD offset)
{
FXSYS_fseek(pFile, offset, FXSYS_SEEK_SET);
char buffer[16];
if (!FXSYS_fread(buffer, 12, 1, pFile)) {
return;
}
FX_DWORD nTables = GET_TT_SHORT(buffer + 4);
CFX_ByteString tables = _FPDF_ReadStringFromFile(pFile, nTables * 16);
CFX_ByteString names = _FPDF_LoadTableFromTT(pFile, tables, nTables, 0x6e616d65);
CFX_ByteString facename = _FPDF_GetNameFromTT(names, 1);
CFX_ByteString style = _FPDF_GetNameFromTT(names, 2);
if (style != "Regular") {
facename += " " + style;
}
FX_LPVOID p;
if (m_FontList.Lookup(facename, p)) {
return;
}
CFontFaceInfo* pInfo = FX_NEW CFontFaceInfo;
if (!pInfo) {
return;
}
pInfo->m_FilePath = path;
pInfo->m_FaceName = facename;
pInfo->m_FontTables = tables;
pInfo->m_FontOffset = offset;
pInfo->m_FileSize = filesize;
pInfo->m_Charsets = 0;
CFX_ByteString os2 = _FPDF_LoadTableFromTT(pFile, tables, nTables, 0x4f532f32);
if (os2.GetLength() >= 86) {
FX_LPCBYTE p = (FX_LPCBYTE)os2 + 78;
FX_DWORD codepages = GET_TT_LONG(p);
if (codepages & (1 << 17)) {
m_pMapper->AddInstalledFont(facename, FXFONT_SHIFTJIS_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_SHIFTJIS;
}
if (codepages & (1 << 18)) {
m_pMapper->AddInstalledFont(facename, FXFONT_GB2312_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_GB;
}
if (codepages & (1 << 20)) {
m_pMapper->AddInstalledFont(facename, FXFONT_CHINESEBIG5_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_BIG5;
}
if ((codepages & (1 << 19)) || (codepages & (1 << 21))) {
m_pMapper->AddInstalledFont(facename, FXFONT_HANGEUL_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_KOREAN;
}
if (codepages & (1 << 31)) {
m_pMapper->AddInstalledFont(facename, FXFONT_SYMBOL_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_SYMBOL;
}
}
m_pMapper->AddInstalledFont(facename, FXFONT_ANSI_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_ANSI;
pInfo->m_Styles = 0;
if (style.Find(FX_BSTRC("Bold")) > -1) {
pInfo->m_Styles |= FXFONT_BOLD;
}
if (style.Find(FX_BSTRC("Italic")) > -1 || style.Find(FX_BSTRC("Oblique")) > -1) {
pInfo->m_Styles |= FXFONT_ITALIC;
}
if (facename.Find(FX_BSTRC("Serif")) > -1) {
pInfo->m_Styles |= FXFONT_SERIF;
}
m_FontList.SetAt(facename, pInfo);
}