99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
#ifndef HGL_GRAPH_PRIMITIVE_CREATER_INCLUDE
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#define HGL_GRAPH_PRIMITIVE_CREATER_INCLUDE
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#include<hgl/graph/VKRenderResource.h>
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#include<hgl/graph/VertexAttribDataAccess.h>
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#include<hgl/graph/VKShaderModule.h>
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#include<hgl/graph/VKIndexBuffer.h>
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namespace hgl
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{
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namespace graph
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{
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class VertexDataManager;
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/**
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* 可绘制图元创建器
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*/
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class PrimitiveCreater
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{
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protected:
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GPUDevice *device;
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const GPUPhysicalDevice *phy_device;
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VertexDataManager *vdm;
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RenderResource *db;
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const VIL *vil;
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protected:
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VkDeviceSize vertices_number;
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VkDeviceSize index_number;
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IndexBuffer * ibo;
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void * ibo_map;
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VABAccessMap vbo_map;
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protected:
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bool AcquirePVB(VABAccess *,const AnsiString &,const void *data); ///<请求一个顶点属性数据区
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void ClearAllData();
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public:
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PrimitiveCreater(RenderResource *sdb,const VIL *);
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PrimitiveCreater(VertexDataManager *);
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virtual ~PrimitiveCreater();
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virtual bool Init(const uint32 vertices_count,const uint32 index_count,IndexType it=IndexType::AUTO); ///<初始化，参数为顶点数量
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template<typename T>
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T * AccessVAB(const AnsiString &name) ///<创建一个顶点属性数据缓冲区以及访问器
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{
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const VkFormat format=vil->GetVulkanFormat(name);
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if(format!=T::GetVulkanFormat())
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return(nullptr);
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VABAccess vad;
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if(!this->AcquirePVB(&vad,name,nullptr))
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return(nullptr);
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T *access=T::Create(vertices_number,vad.map_ptr);
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access->Begin();
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return access;
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}
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bool WriteVAB(const AnsiString &name,const void *data,const uint32_t bytes); ///<直接写入顶点属性数据
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const IndexType GetIndexType()const{return ibo?ibo->GetType():IndexType::ERR;} ///<取得索引数据类型
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template<typename T> T *AccessIBO()
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{
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if(!ibo)return(nullptr);
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if(ibo->GetStride()!=sizeof(T))return(nullptr);
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return (T *)ibo_map;
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}
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template<typename T> bool WriteIBO(const T *data)
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{
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if(!ibo)return(false);
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if(ibo->GetStride()!=sizeof(T))return(false);
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hgl_cpy<T>((T *)ibo_map,data,index_number);
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return(true);
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}
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virtual Primitive * Finish(const AnsiString &); ///<结束并创建可渲染对象
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};//class PrimitiveCreater
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_PRIMITIVE_CREATER_INCLUDE
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