60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
#ifndef HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
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#define HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
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#include<hgl/graph/shader/common.h>
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#include<hgl/graph/shader/param/out.h>
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#include<hgl/graph/shader/param/param.h>
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SHADER_PARAM_NAMESPACE_BEGIN
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/**
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* 输入参数定义
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*/
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class InputParam:public Param
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{
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bool must_join; //是否必须有接入
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protected:
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node::Node *join_node;
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param::OutputParam *join_param;
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protected:
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/**
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* 可否接入判断，默认只判断类型
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*/
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virtual bool JoinCheck(node::Node *n,param::OutputParam *op)
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{
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return(op->GetType()==this->GetType());
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}
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public: //属性
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node::Node * GetJoinNode (){return join_node;} ///<取得接入节点
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param::OutputParam *GetJoinParam(){return join_param;} ///<取得接入节点参数
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virtual const UTF8String GetDefaultValue()const{return "?";} ///<取得缺省值
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public:
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InputParam(const bool mj,const UTF8String &n,const ParamType &t):Param(n,t)
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{
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must_join=mj;
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join_node=nullptr;
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join_param=nullptr;
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}
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virtual ~InputParam()=default;
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virtual bool Join(node::Node *,param::OutputParam *); ///<增加一个关联节点
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virtual void Break(){join_node=nullptr;join_param=nullptr;} ///<断开一个关联节点
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virtual bool Check() ///<检测当前节点是否可用
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{
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if(must_join&&!join_param)return(false);
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return true;
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}
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};//class InputParam:public Param
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SHADER_PARAM_NAMESPACE_END
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#endif//#ifndef HGL_GRAPH_SHADER_PARAM_INPUT_INCLUDE
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