mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-10-24 13:52:39 +00:00
5a3954ae0e
Fixes several files incorrectly stated a different license from the actual project, as well as the copyright headers included in all files. This change has no effect on the licensing terms, it should clear up a bit of confusion by contributors. Plus the files get a bit smaller, and we have less duplicated information across the entire project. Overall the project is GPLv2 if not built with Qt, and GPLv3 if it is built with Qt. There are no parts licensed under a different license, all have been adapted from other compatible licenses into GPLv2 or GPLv3.
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
// AUTOGENERATED COPYRIGHT HEADER START
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// Copyright (C) 2020-2023 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
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// Copyright (C) 2022 lainon <GermanAizek@yandex.ru>
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// AUTOGENERATED COPYRIGHT HEADER END
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#include "util-library.hpp"
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#include "util-platform.hpp"
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#if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__) // Windows
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#define ST_WINDOWS
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#else
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#define ST_UNIX
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#endif
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#include "warning-disable.hpp"
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#include <unordered_map>
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#if defined(ST_WINDOWS)
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#include <Windows.h>
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#elif defined(ST_UNIX)
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#include <dlfcn.h>
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#endif
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#include "warning-enable.hpp"
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streamfx::util::library::library(std::filesystem::path file) : _library(nullptr)
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{
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#if defined(ST_WINDOWS)
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SetLastError(ERROR_SUCCESS);
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auto wfile = ::streamfx::util::platform::utf8_to_native(file.u8string());
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if (file.is_absolute()) {
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_library = reinterpret_cast<void*>(LoadLibraryExW(wfile.c_str(), nullptr, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR));
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} else {
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_library = reinterpret_cast<void*>(LoadLibraryExW(wfile.c_str(), nullptr, LOAD_LIBRARY_SEARCH_DEFAULT_DIRS));
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}
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if (!_library) {
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std::string ex = "Failed to load library.";
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DWORD error = GetLastError();
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if (error != ERROR_PROC_NOT_FOUND) {
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PSTR message = NULL;
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FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER,
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NULL, error, MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), (LPSTR)&message, 0, NULL);
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if (message) {
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ex = message;
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LocalFree(message);
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throw std::runtime_error(ex);
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}
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}
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throw std::runtime_error(ex);
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}
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#elif defined(ST_UNIX)
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_library = dlopen(file.u8string().c_str(), RTLD_LAZY);
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if (!_library) {
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if (char* error = dlerror(); error)
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throw std::runtime_error(error);
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else
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throw std::runtime_error("Failed to load library.");
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}
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#endif
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}
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streamfx::util::library::~library()
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{
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#if defined(ST_WINDOWS)
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FreeLibrary(reinterpret_cast<HMODULE>(_library));
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#elif defined(ST_UNIX)
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dlclose(_library);
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#endif
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}
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void* streamfx::util::library::load_symbol(std::string_view name)
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{
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#if defined(ST_WINDOWS)
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return reinterpret_cast<void*>(GetProcAddress(reinterpret_cast<HMODULE>(_library), name.data()));
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#elif defined(ST_UNIX)
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return reinterpret_cast<void*>(dlsym(_library, name.data()));
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#endif
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}
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static std::unordered_map<std::string, std::weak_ptr<::streamfx::util::library>> libraries;
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std::shared_ptr<::streamfx::util::library> streamfx::util::library::load(std::filesystem::path file)
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{
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auto kv = libraries.find(file.u8string());
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if (kv != libraries.end()) {
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if (auto ptr = kv->second.lock(); ptr)
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return ptr;
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libraries.erase(kv);
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}
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auto ptr = std::make_shared<::streamfx::util::library>(file);
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libraries.emplace(file.u8string(), ptr);
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return ptr;
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}
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std::shared_ptr<::streamfx::util::library> streamfx::util::library::load(std::string_view name)
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{
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return load(std::filesystem::u8path(name));
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}
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