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nvidia/cv: Prefer AddDllDirectory over SetDefaultDllDirectories

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2021-10-24 14:06:00 +02:00
parent a56f3816a1
commit 6983be457a
2 changed files with 36 additions and 5 deletions
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38
source/nvidia/cv/nvidia-cv.cpp
View file

@ -67,6 +67,13 @@
streamfx::nvidia::cv::cv::~cv()
{
D_LOG_DEBUG("Finalizing... (Addr: 0x%" PRIuPTR ")", this);
#ifdef WIN32
// Remove the DLL directory from the library loader paths.
if (_extra != nullptr) {
RemoveDllDirectory(reinterpret_cast<DLL_DIRECTORY_COOKIE>(_extra));
}
#endif
}
streamfx::nvidia::cv::cv::cv()
@ -149,13 +156,28 @@ streamfx::nvidia::cv::cv::cv()
// Try and load any available NvCVImage library.
for (auto path : lib_paths) {
#ifdef WIN32
// On platforms where it is possible, modify the linker directories.
SetDefaultDllDirectories(LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
// Add the DLL directory to the library loader paths, if possible.
DLL_DIRECTORY_COOKIE ck = AddDllDirectory(vfx_sdk_path.wstring().c_str());
_extra = reinterpret_cast<void*>(ck);
if (ck == 0) {
DWORD ec = GetLastError();
std::string error;
{
LPWSTR str;
FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, ec, MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
reinterpret_cast<LPWSTR>(&str), 0, nullptr);
error = ::streamfx::util::platform::native_to_utf8(std::wstring(str));
LocalFree(str);
}
D_LOG_WARNING("Failed to add '%'s to the library loader paths with error: %s (Code %" PRIu32 ")",
vfx_sdk_path.string().c_str(), error.c_str(), ec);
}
#endif
// Try to load it directly first, it may be on the search path already.
try {
// Try to load it directly first, it may be on the search path already.
_library = ::streamfx::util::library::load(std::string_view(LIB_NAME));
} catch (...) {
auto pathu8 = util::platform::native_to_utf8(path / LIB_NAME);
@ -165,11 +187,17 @@ streamfx::nvidia::cv::cv::cv()
D_LOG_WARNING("Failed to load '%s' from '%s'.", LIB_NAME, pathu8.string().c_str());
}
}
if (_library)
// If we were successful at loading it, break out.
if (_library) {
break;
}
#ifdef WIN32
RemoveDllDirectory(ck);
// Remove the DLL directory from the library loader paths if we added it.
if (ck != 0) {
RemoveDllDirectory(ck);
}
#endif
}

3
source/nvidia/cv/nvidia-cv.hpp
View file

@ -209,6 +209,9 @@ namespace streamfx::nvidia::cv {
class cv {
std::shared_ptr<::streamfx::util::library> _library;
#ifdef WIN32
void* _extra;
#endif
public:
~cv();