HuYingzhuo
e35fbf9a1a
VertexInputState传递给Material，未来可能改由Material创建，提供需要绑定的数据流格式。 VertexInput用于实际的缓冲区绑定
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
#ifndef HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE
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#define HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE
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#include"VK.h"
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VK_NAMESPACE_BEGIN
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class VertexBuffer;
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class IndexBuffer;
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/**
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* 顶点输入状态<br>
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* 顶点输入状态用于记录数据是如果传递给Pipeline的，并不包含具体数据
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*/
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class VertexInputState
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{
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List<VkVertexInputBindingDescription> binding_list;
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List<VkVertexInputAttributeDescription> attribute_list;
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public:
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VertexInputState()=default;
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~VertexInputState()=default;
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void Add(const uint32_t shader_location,const VkFormat format,uint32_t offset=0,bool instance=false);
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public:
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const uint32_t GetCount()const{return binding_list.GetCount();}
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VkVertexInputBindingDescription * GetDesc(const int index){return (index<0||index>=binding_list.GetCount()?nullptr:binding_list.GetData()+index);}
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VkVertexInputAttributeDescription * GetAttr(const int index){return (index<0||index>=attribute_list.GetCount()?nullptr:attribute_list.GetData()+index);}
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void Write(VkPipelineVertexInputStateCreateInfo &vis)const;
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};//class VertexInputStateCreater
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/**
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* 顶点输入配置，类似于OpenGL的VAB<br>
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* 注：本引擎不支持一个BUFFER中包括多种数据
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*/
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class VertexInput
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{
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VertexInputState *vis;
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uint32_t buf_count=0;
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VkBuffer *buf_list=nullptr;
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VkDeviceSize *buf_offset=nullptr;
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IndexBuffer *indices_buffer=nullptr;
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VkDeviceSize indices_offset=0;
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public:
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VertexInput(VertexInputState *);
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virtual ~VertexInput();
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bool Set(uint32_t index,VertexBuffer *,VkDeviceSize offset=0);
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bool Set(IndexBuffer *ib,VkDeviceSize offset=0)
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{
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if(!ib)return(false);
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indices_buffer=ib;
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indices_offset=offset;
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return(true);
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}
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public:
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const uint32_t GetCount ()const{return buf_count;}
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const VkBuffer * GetBuffer ()const{return buf_list;}
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const VkDeviceSize * GetOffset ()const{return buf_offset;}
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IndexBuffer * GetIndexBuffer() {return indices_buffer;}
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const VkDeviceSize GetIndexOffset()const{return indices_offset;}
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};//class VertexInput
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VK_NAMESPACE_END
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#endif//HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE
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