mirror of
https://github.com/smallmain/cocos-enhance-kit.git
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99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/****************************************************************************
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Copyright (c) 2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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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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#pragma once
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#include "../Macro.h"
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#include "base/CCValue.h"
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#include <string>
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#include <vector>
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#include <functional>
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RENDERER_BEGIN
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class DeviceGraphics;
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class Program;
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/**
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* @addtogroup renderer
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* @{
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*/
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/**
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* @brief This class manages shader template and linked programs, material can customize shader by setting different defines.
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*/
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class ProgramLib final
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{
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public:
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/**
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* @brief Program template
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*/
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struct Template
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{
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uint32_t id = 0;
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std::string name;
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std::string vert;
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std::string frag;
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ValueVector defines;
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};
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/**
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* @brief Constructor with device and all initial templates.
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*/
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ProgramLib(DeviceGraphics* device, std::vector<Template>& templates);
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/**
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* @brief The default destructor.
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*/
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~ProgramLib();
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/**
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* @brief Define a new program with name, vertex shader name, fragement shader name and template define settings.
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*/
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void define(const std::string& name, const std::string& vert, const std::string& frag, ValueVector& defines);
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/**
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* @brief Gets program by template name, define settings and defines key.
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* @note The return value needs to be released by its 'release' method.
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*/
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Program* switchProgram(const size_t programNameHash, const size_t definesKeyHash, const std::vector<const OrderedValueMap*>& definesList);
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const Value* getValueFromDefineList(const std::string& name, const std::vector<const ValueMap*>& definesList);
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private:
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uint32_t getValueKey(const Value* v);
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private:
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DeviceGraphics* _device = nullptr;
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std::unordered_map<size_t, Template> _templates;
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std::unordered_map<uint64_t, Program*> _cache;
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Program* _current = nullptr;
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};
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// end of renderer group
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/// @}
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RENDERER_END
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