mirror of https://github.com/axmolengine/axmol.git
102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/****************************************************************************
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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https://axmolengine.github.io/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __AX_RENDERCOMMANDPOOL_H__
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#define __AX_RENDERCOMMANDPOOL_H__
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/// @cond DO_NOT_SHOW
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#include <list>
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#include "platform/PlatformMacros.h"
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NS_AX_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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~RenderCommandPool()
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{
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// if( 0 != _usedPool.size())
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// {
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// AXLOG("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 (auto&& allocatedPoolBlock : _allocatedPoolBlocks)
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{
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delete[] allocatedPoolBlock;
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allocatedPoolBlock = nullptr;
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}
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_allocatedPoolBlocks.clear();
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}
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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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// AXLOG("push Back Wrong command!");
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// return;
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// }
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_freePool.emplace_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.emplace_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.emplace_back(commands + index);
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}
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}
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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_AX_END
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/// @endcond
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#endif
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