mirror of
https://github.com/KhronosGroup/Vulkan-Hpp
synced 2024-09-18 21:59:56 +00:00
104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
#if VULKAN_HPP_ENABLE_DYNAMIC_LOADER_TOOL
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class DynamicLoader
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{
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public:
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# ifdef VULKAN_HPP_NO_EXCEPTIONS
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DynamicLoader( std::string const & vulkanLibraryName = {} ) VULKAN_HPP_NOEXCEPT
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# else
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DynamicLoader( std::string const & vulkanLibraryName = {} )
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# endif
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{
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if ( !vulkanLibraryName.empty() )
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{
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# if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNX__ ) || defined(__Fuchsia__)
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m_library = dlopen( vulkanLibraryName.c_str(), RTLD_NOW | RTLD_LOCAL );
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# elif defined( _WIN32 )
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m_library = ::LoadLibraryA( vulkanLibraryName.c_str() );
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# else
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# error unsupported platform
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# endif
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}
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else
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{
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# if defined( __unix__ ) || defined( __QNX__ ) || defined(__Fuchsia__)
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m_library = dlopen( "libvulkan.so", RTLD_NOW | RTLD_LOCAL );
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if ( m_library == nullptr )
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{
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m_library = dlopen( "libvulkan.so.1", RTLD_NOW | RTLD_LOCAL );
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}
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# elif defined( __APPLE__ )
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m_library = dlopen( "libvulkan.dylib", RTLD_NOW | RTLD_LOCAL );
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if (m_library == nullptr)
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{
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m_library = dlopen("libvulkan.1.dylib", RTLD_NOW | RTLD_LOCAL);
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}
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# elif defined( _WIN32 )
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m_library = ::LoadLibraryA( "vulkan-1.dll" );
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# else
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# error unsupported platform
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# endif
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}
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#ifndef VULKAN_HPP_NO_EXCEPTIONS
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if ( m_library == nullptr )
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{
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// NOTE there should be an InitializationFailedError, but msvc insists on the symbol does not exist within the scope of this function.
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throw std::runtime_error( "Failed to load vulkan library!" );
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}
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#endif
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}
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DynamicLoader( DynamicLoader const & ) = delete;
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DynamicLoader( DynamicLoader && other ) VULKAN_HPP_NOEXCEPT : m_library(other.m_library)
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{
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other.m_library = nullptr;
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}
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DynamicLoader &operator=( DynamicLoader const & ) = delete;
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DynamicLoader &operator=( DynamicLoader && other ) VULKAN_HPP_NOEXCEPT
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{
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std::swap(m_library, other.m_library);
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return *this;
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}
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~DynamicLoader() VULKAN_HPP_NOEXCEPT
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{
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if ( m_library )
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{
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# if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNX__ ) || defined(__Fuchsia__)
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dlclose( m_library );
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# elif defined( _WIN32 )
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::FreeLibrary( m_library );
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# else
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# error unsupported platform
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# endif
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}
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}
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template <typename T>
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T getProcAddress( const char* function ) const VULKAN_HPP_NOEXCEPT
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{
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# if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNX__ ) || defined(__Fuchsia__)
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return (T)dlsym( m_library, function );
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# elif defined( _WIN32 )
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return (T)::GetProcAddress( m_library, function );
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# else
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# error unsupported platform
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# endif
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}
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bool success() const VULKAN_HPP_NOEXCEPT { return m_library != nullptr; }
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private:
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# if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNX__ ) || defined(__Fuchsia__)
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void * m_library;
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# elif defined( _WIN32 )
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::HINSTANCE m_library;
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# else
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# error unsupported platform
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# endif
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};
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#endif
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