mirror of https://github.com/axmolengine/axmol.git
85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
//
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// RenderCommandPool.h
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// cocos2d_libs
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//
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// Created by Huabing on 11/28/13.
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//
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//
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#ifndef __CC_RENDERCOMMANDPOOL_H__
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#define __CC_RENDERCOMMANDPOOL_H__
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#include <set>
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#include <list>
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#include "CCPlatformMacros.h"
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NS_CC_BEGIN
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template <class T>
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class RenderCommandPool
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{
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public:
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RenderCommandPool()
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{
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}
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~RenderCommandPool()
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{
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// if( 0 != _usedPool.size())
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// {
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// CCLOG("All RenderCommand should not be used when Pool is released!");
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// }
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_freePool.clear();
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for (typename std::list<T*>::iterator iter = _allocatedPoolBlocks.begin(); iter != _allocatedPoolBlocks.end(); ++iter)
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{
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delete[] *iter;
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*iter = nullptr;
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}
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_allocatedPoolBlocks.clear();
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}
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public:
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T* generateCommand()
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{
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T* result = nullptr;
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if(_freePool.empty())
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{
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AllocateCommands();
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}
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result = _freePool.front();
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_freePool.pop_front();
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//_usedPool.insert(result);
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return result;
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}
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void pushBackCommand(T* ptr)
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{
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// if(_usedPool.find(ptr) == _usedPool.end())
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// {
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// CCLOG("push Back Wrong command!");
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// return;
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// }
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_freePool.push_back(ptr);
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//_usedPool.erase(ptr);
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}
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private:
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void AllocateCommands()
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{
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static const int COMMANDS_ALLOCATE_BLOCK_SIZE = 32;
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T* commands = new T[COMMANDS_ALLOCATE_BLOCK_SIZE];
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_allocatedPoolBlocks.push_back(commands);
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for(int index = 0; index < COMMANDS_ALLOCATE_BLOCK_SIZE; ++index)
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{
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_freePool.push_back(commands+index);
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}
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}
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private:
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std::list<T*> _allocatedPoolBlocks;
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std::list<T*> _freePool;
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//std::set<T*> _usedPool;
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};
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NS_CC_END
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#endif
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