int SkFontHost::CountTables(SkFontID fontID) {
SkStream* stream = SkFontHost::OpenStream(fontID);
if (NULL == stream) {
return 0;
}
SkAutoUnref au(stream);
return count_tables(stream);
}
/** If it returns true, then fCount and fDir are properly initialized.
Note: fDir will point to the raw array of SkSFNTDirEntry values,
meaning they will still be in the file's native endianness (BE).
fDir will be automatically freed when this object is destroyed
*/
bool init(SkStream* stream) {
size_t offsetToDir;
fCount = count_tables(stream, &offsetToDir);
if (0 == fCount) {
return false;
}
stream->rewind();
if (stream->skip(offsetToDir) != offsetToDir) {
return false;
}
size_t size = fCount * sizeof(SkSFNTDirEntry);
fDir = reinterpret_cast<SkSFNTDirEntry*>(sk_malloc_throw(size));
return stream->read(fDir, size) == size;
}
/** If it returns true, then fCount and fDir are properly initialized.
Note: fDir will point to the raw array of SkSFNTDirEntry values,
meaning they will still be in the file's native endianness (BE).
fDir will be automatically freed when this object is destroyed
*/
bool init(SkStream* stream, int ttcIndex) {
stream->rewind();
size_t offsetToDir;
fCount = count_tables(stream, ttcIndex, &offsetToDir);
if (0 == fCount) {
return false;
}
stream->rewind();
if (!skip(stream, offsetToDir)) {
return false;
}
size_t size = fCount * sizeof(SkSFNTDirEntry);
fDir = reinterpret_cast<SkSFNTDirEntry*>(sk_malloc_throw(size));
return read(stream, fDir, size);
}