AssimpLibrary.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_SCENEDESCRIPTION_SDL_ASSIMP_ASSIMP_LIBRARY_H
#define META_OCEAN_SCENEDESCRIPTION_SDL_ASSIMP_ASSIMP_LIBRARY_H
 
#include "ocean/scenedescription/sdl/assimp/Assimp.h"
 
#include "ocean/scenedescription/Library.h"
#include "ocean/scenedescription/Manager.h"
 
namespace Ocean
{
 
namespace SceneDescription
{
 
namespace SDL
{
 
namespace Assimp
{
 
/**
 * This class implements the scene library for all Assimp file types.
 * @ingroup scenedescriptionsdlassimp
 */
class OCEAN_SCENEDESCRIPTION_SDL_ASSIMP_EXPORT AssimpLibrary : public Library
{
    friend class SceneDescription::Manager;
 
    public:
 
        /**
         * Registers this library at the global scene description manager.
         * With each register call, the reference counter for a specific library will be incremented.
         * Each call to registerLibrary() needs to be balanced with a corresponding call of unregisterLibrary() before shutting down.
         * @return True, if the library has not been registered before
         * @see Manager, unregisterLibrary()
         */
        static bool registerLibrary();
 
        /**
         * Unregisters this library at the global scene description manager.
         * With each unregister call, the reference counter for a specific library will be decremented and removed from the system if the counter reaches zero.
         * Each call to registerLibrary() needs to be balanced with a corresponding call of unregisterLibrary() before shutting down.
         * @return True, if the library was actually removed from the system (as the reference counter reached zero); False, if the library is still used by someone else
         * @see registerLibrary().
         */
        static bool unregisterLibrary();
 
    protected:
 
        /**
         * Creates a new Assimp library.
         */
        AssimpLibrary();
 
        /**
         * Destructs a Assimp library.
         */
        ~AssimpLibrary() override;
 
        /**
         * Creates this library and returns it an object reference.
         * @return The new library object
         */
        static LibraryRef create();
 
        /**
         * Loads a new scene by a given filename and returns a transient scene hierarchy which can be converted to a rendering scene graph afterwards.
         * @see Library::loadTransient().
         */
        SceneRef loadTransient(const std::string& filename, const std::string& fileExtension, float* progress, bool* cancel) override;
};
 
}
 
}
 
}
 
}
 
#endif // META_OCEAN_SCENEDESCRIPTION_SDL_ASSIMP_ASSIMP_LIBRARY_H