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86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
#ifndef OPENMW_COMPONENTS_RESOURCE_RESOURCESYSTEM_H
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#define OPENMW_COMPONENTS_RESOURCE_RESOURCESYSTEM_H
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#include <memory>
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#include <vector>
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namespace VFS
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{
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class Manager;
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}
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namespace osg
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{
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class Stats;
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class State;
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}
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namespace Resource
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{
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class SceneManager;
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class ImageManager;
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class NifFileManager;
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class KeyframeManager;
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class ResourceManager;
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/// @brief Wrapper class that constructs and provides access to the most commonly used resource subsystems.
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/// @par Resource subsystems can be used with multiple OpenGL contexts, just like the OSG equivalents, but
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/// are built around the use of a single virtual file system.
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class ResourceSystem
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{
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public:
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ResourceSystem(const VFS::Manager* vfs);
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~ResourceSystem();
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SceneManager* getSceneManager();
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ImageManager* getImageManager();
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NifFileManager* getNifFileManager();
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KeyframeManager* getKeyframeManager();
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/// Indicates to each resource manager to clear the cache, i.e. to drop cached objects that are no longer referenced.
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/// @note May be called from any thread if you do not add or remove resource managers at that point.
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void updateCache(double referenceTime);
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/// Indicates to each resource manager to clear the entire cache.
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/// @note May be called from any thread if you do not add or remove resource managers at that point.
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void clearCache();
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/// Add this ResourceManager to be handled by the ResourceSystem.
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/// @note Does not transfer ownership.
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void addResourceManager(ResourceManager* resourceMgr);
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/// @note Do nothing if resourceMgr does not exist.
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/// @note Does not delete resourceMgr.
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void removeResourceManager(ResourceManager* resourceMgr);
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/// How long to keep objects in cache after no longer being referenced.
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void setExpiryDelay(double expiryDelay);
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/// @note May be called from any thread.
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const VFS::Manager* getVFS() const;
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void reportStats(unsigned int frameNumber, osg::Stats* stats) const;
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/// Call releaseGLObjects for each resource manager.
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void releaseGLObjects(osg::State* state);
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private:
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std::unique_ptr<SceneManager> mSceneManager;
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std::unique_ptr<ImageManager> mImageManager;
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std::unique_ptr<NifFileManager> mNifFileManager;
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std::unique_ptr<KeyframeManager> mKeyframeManager;
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// Store the base classes separately to get convenient access to the common interface
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// Here users can register their own resourcemanager as well
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std::vector<ResourceManager*> mResourceManagers;
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const VFS::Manager* mVFS;
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ResourceSystem(const ResourceSystem&);
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void operator = (const ResourceSystem&);
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};
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}
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#endif
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