module( std::string m) : m_(nullptr) {
// if empty string, leave m_ as nullptr;
if (m.empty()) return;
// if there is a \ or / in the string then pass it unmodified
// otherwise place a .dll extension
if(m.find('\\') == std::string::npos && m.find('/')==std::string::npos) {
// add a .dll extension
m += ".dll";
}
auto sz = detail::Windows::MultiByteToWideChar(detail::Windows::cp_utf8, 0, m.c_str(), -1, 0, 0);
if (sz <= 0) {
throw error_unable_to_load_library();
}
std::vector<wchar_t> wchars(sz);
detail::Windows::MultiByteToWideChar(detail::Windows::cp_utf8, 0, m.c_str(), -1, &wchars[0], sz);
#ifndef CPPCOMPONENTS_WINRT_APP
m_ = detail::Windows::LoadLibraryW(&wchars[0]);
#else
m_ = detail::Windows::LoadPackagedLibrary(&wchars[0],0);
#endif
if(!m_) {
throw error_unable_to_load_library();
}
}
static FILE* fopen_win(const char* utf8path, const char* perm) {
if (is_ascii(utf8path)) {
return fopen(utf8path, perm);
}
const char* ptr = utf8path;
const char* end = utf8path + strlen(utf8path);
size_t n = 0;
while (ptr < end) {
SkUnichar u = SkUTF8_NextUnicharWithError(&ptr, end);
if (u < 0) {
return nullptr; // malformed UTF-8
}
n += SkUTF16_FromUnichar(u);
}
std::vector<uint16_t> wchars(n + 1);
uint16_t* out = wchars.data();
for (const char* ptr = utf8path; ptr < end;) {
out += SkUTF16_FromUnichar(SkUTF8_NextUnicharWithError(&ptr, end), out);
}
SkASSERT(out == &wchars[n]);
*out = 0; // final null
wchar_t wperms[4] = {(wchar_t)perm[0], (wchar_t)perm[1], (wchar_t)perm[2], (wchar_t)perm[3]};
return _wfopen((wchar_t*)wchars.data(), wperms);
}
