Refactor top-level function to generate vulkan.hpp

2022-07-28 17:09:08 +02:00
parent b95c02b89d
commit 893d6847bb
24 changed files with 2223 additions and 2226 deletions
--- a/snippets/DynamicLoader.hpp
+++ b/snippets/DynamicLoader.hpp
@@ -0,0 +1,99 @@
+#if VULKAN_HPP_ENABLE_DYNAMIC_LOADER_TOOL
+  class DynamicLoader
+  {
+  public:
+#  ifdef VULKAN_HPP_NO_EXCEPTIONS
+    DynamicLoader( std::string const & vulkanLibraryName = {} ) VULKAN_HPP_NOEXCEPT
+#  else
+    DynamicLoader( std::string const & vulkanLibraryName = {} )
+#  endif
+    {
+      if ( !vulkanLibraryName.empty() )
+      {
+#  if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
+        m_library = dlopen( vulkanLibraryName.c_str(), RTLD_NOW | RTLD_LOCAL );
+#  elif defined( _WIN32 )
+        m_library = ::LoadLibraryA( vulkanLibraryName.c_str() );
+#  else
+#    error unsupported platform
+#  endif
+      }
+      else
+      {
+#  if defined( __unix__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
+        m_library = dlopen( "libvulkan.so", RTLD_NOW | RTLD_LOCAL );
+        if ( m_library == nullptr )
+        {
+          m_library = dlopen( "libvulkan.so.1", RTLD_NOW | RTLD_LOCAL );
+        }
+#  elif defined( __APPLE__ )
+        m_library = dlopen( "libvulkan.dylib", RTLD_NOW | RTLD_LOCAL );
+#  elif defined( _WIN32 )
+        m_library = ::LoadLibraryA( "vulkan-1.dll" );
+#  else
+#    error unsupported platform
+#  endif
+      }
+
+#ifndef VULKAN_HPP_NO_EXCEPTIONS
+      if ( m_library == nullptr )
+      {
+        // NOTE there should be an InitializationFailedError, but msvc insists on the symbol does not exist within the scope of this function.
+        throw std::runtime_error( "Failed to load vulkan library!" );
+      }
+#endif
+    }
+
+    DynamicLoader( DynamicLoader const & ) = delete;
+
+    DynamicLoader( DynamicLoader && other ) VULKAN_HPP_NOEXCEPT : m_library(other.m_library)
+    {
+      other.m_library = nullptr;
+    }
+
+    DynamicLoader &operator=( DynamicLoader const & ) = delete;
+
+    DynamicLoader &operator=( DynamicLoader && other ) VULKAN_HPP_NOEXCEPT
+    {
+      std::swap(m_library, other.m_library);
+      return *this;
+    }
+
+    ~DynamicLoader() VULKAN_HPP_NOEXCEPT
+    {
+      if ( m_library )
+      {
+#  if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
+        dlclose( m_library );
+#  elif defined( _WIN32 )
+        ::FreeLibrary( m_library );
+#  else
+#    error unsupported platform
+#  endif
+      }
+    }
+
+    template <typename T>
+    T getProcAddress( const char* function ) const VULKAN_HPP_NOEXCEPT
+    {
+#  if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
+      return (T)dlsym( m_library, function );
+#  elif defined( _WIN32 )
+      return (T)::GetProcAddress( m_library, function );
+#  else
+#    error unsupported platform
+#  endif
+    }
+
+    bool success() const VULKAN_HPP_NOEXCEPT { return m_library != nullptr; }
+
+  private:
+#  if defined( __unix__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
+    void * m_library;
+#  elif defined( _WIN32 )
+    ::HINSTANCE m_library;
+#  else
+#    error unsupported platform
+#  endif
+  };
+#endif