CFX_ByteString GetNameFromTT(const uint8_t* name_table,
uint32_t name_table_size,
uint32_t name_id) {
if (!name_table || name_table_size < 6) {
return CFX_ByteString();
}
uint32_t name_count = GET_TT_SHORT(name_table + 2);
uint32_t string_offset = GET_TT_SHORT(name_table + 4);
// We will ignore the possibility of overlap of structures and
// string table as if it's all corrupt there's not a lot we can do.
if (name_table_size < string_offset) {
return CFX_ByteString();
}
const uint8_t* string_ptr = name_table + string_offset;
uint32_t string_ptr_size = name_table_size - string_offset;
name_table += 6;
name_table_size -= 6;
if (name_table_size < name_count * 12) {
return CFX_ByteString();
}
for (uint32_t i = 0; i < name_count; i++, name_table += 12) {
if (GET_TT_SHORT(name_table + 6) == name_id &&
GET_TT_SHORT(name_table) == 1 && GET_TT_SHORT(name_table + 2) == 0) {
return GetStringFromTable(string_ptr, string_ptr_size,
GET_TT_SHORT(name_table + 10),
GET_TT_SHORT(name_table + 8));
}
}
return CFX_ByteString();
}
CFX_ByteString _FPDF_GetNameFromTT(FX_LPCBYTE name_table, FX_DWORD name_id)
{
FX_LPCBYTE ptr = name_table + 2;
int name_count = GET_TT_SHORT(ptr);
int string_offset = GET_TT_SHORT(ptr + 2);
FX_LPCBYTE string_ptr = name_table + string_offset;
ptr += 4;
for (int i = 0; i < name_count; i ++) {
if (GET_TT_SHORT(ptr + 6) == name_id && GET_TT_SHORT(ptr) == 1 && GET_TT_SHORT(ptr + 2) == 0) {
return CFX_ByteStringC(string_ptr + GET_TT_SHORT(ptr + 10), GET_TT_SHORT(ptr + 8));
}
ptr += 12;
}
return CFX_ByteString();
}
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);
}
