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80 lines
2.7 KiB
C++
Executable File
80 lines
2.7 KiB
C++
Executable File
// File: OpenGl_ResourceCleaner.hxx
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// Created: 18.03.11 9:30:00
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// Author: Anton POLETAEV
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#ifndef _OPENGL_RESOURCECLEANER_H
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#define _OPENGL_RESOURCECLEANER_H
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#include <OpenGl_tgl_all.hxx>
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#include <NCollection_Queue.hxx>
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#include <NCollection_List.hxx>
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#include <NCollection_Map.hxx>
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#include <NCollection_DataMap.hxx>
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#include <OpenGl_Resource.hxx>
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class OpenGl_Resource;
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class Handle_OpenGl_Resource;
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typedef NCollection_Queue<Handle_OpenGl_Resource> QueueOfResources;
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typedef NCollection_DataMap<GLCONTEXT, QueueOfResources> DataMapOfContextsResources;
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typedef NCollection_Map<GLCONTEXT> MapOfContexts;
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//! OpenGl_ResourceCleaner should be used to clean OpenGl memory resources;
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//! The reason is that the resources might be shared between the contexts and
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//! should be cleaned up only while suitable context is active;
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class OpenGl_ResourceCleaner
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{
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public:
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//! Constructor
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OpenGl_ResourceCleaner();
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//! Destructor
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virtual ~OpenGl_ResourceCleaner() { }
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//! Append OpenGl context to the OpenGl_ResourceCleaner
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//! control list.
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void AppendContext(GLCONTEXT theContext, Standard_Boolean isShared);
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//! Tell the OpenGl_ResourceCleaner to clean up the OpenGl memory resource
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//! which has been created by the specified OpenGl context;
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//! The context should be in the OpenGl_ResourceCleaner control list.
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Standard_Boolean AddResource(GLCONTEXT theContext, Handle_OpenGl_Resource theResource);
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//! Cancel clean procedure for all the resources added to the OpenGl_ResourceCleaner.
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void Clear();
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//! Cancel clean procedure for all the resources of the specific OpenGl context
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//! which were added to the OpenGl_ResourceCleaner.
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Standard_Boolean Clear(GLCONTEXT theContext);
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//! Cancel clean procedure for all of the shared resources.
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void ClearShared();
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//! Clear the unused resources for active OpenGl context;
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//! You should add the cleaner resources by AddResources method;
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//! It is suggested to call this method right before the OpenGl
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//! new frame drawing procedure starts.
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void Cleanup();
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//! Remove the OpenGl context from the OpenGl_ResourceCleaner control list.
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void RemoveContext(GLCONTEXT theContext);
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//! Get any of shared contexts from the OpenGl_ResourceCleaner list
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//! to share resources with a new one
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GLCONTEXT GetSharedContext() const;
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//! Get the global instance of OpenGl_ResourceCleaner
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static OpenGl_ResourceCleaner* GetInstance();
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private:
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DataMapOfContextsResources myInstanceQueue; // map for queues of non-shared context's resources
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QueueOfResources mySharedQueue; // queue of shared context's resources
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MapOfContexts mySharedContexts; // the control list of shared contexts
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};
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#endif
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