128 lines
4.0 KiB
C++
128 lines
4.0 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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#include<hgl/type/BaseString.h>
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#include<hgl/type/Map.h>
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#include<hgl/type/Set.h>
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VK_NAMESPACE_BEGIN
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class VertexBuffer;
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class IndexBuffer;
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class VertexInputStateInstance;
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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<br>
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* 本类对象用于存放在Material中，只记录格式，并不能直接供pipeline使用
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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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Map<UTF8String,VkVertexInputAttributeDescription *> stage_input_locations;
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Set<VertexInputStateInstance *> instance_set;
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public:
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VertexInputState()=default;
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~VertexInputState();
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int Add(const UTF8String &name,const uint32_t shader_location,const VkFormat format,uint32_t offset=0,bool instance=false);
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public:
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void Clear()
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{
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binding_list.Clear();
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attribute_list.Clear();
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}
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const uint32_t GetCount ()const{return binding_list.GetCount();}
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const int GetLocation (const UTF8String &)const;
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const int GetBinding (const UTF8String &)const;
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const VkVertexInputBindingDescription * GetDescList ()const{return binding_list.GetData();}
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const VkVertexInputAttributeDescription * GetAttrList ()const{return attribute_list.GetData();}
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const VkVertexInputBindingDescription * GetDesc (const int index)const{return (index<0||index>=binding_list.GetCount()?nullptr:binding_list.GetData()+index);}
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const VkVertexInputAttributeDescription * GetAttr (const int index)const{return (index<0||index>=attribute_list.GetCount()?nullptr:attribute_list.GetData()+index);}
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public:
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VertexInputStateInstance * CreateInstance();
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bool Release(VertexInputStateInstance *);
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const uint32_t GetInstanceCount()const{return instance_set.GetCount();}
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};//class VertexInputState
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/**
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* 顶点输入状态实例<br>
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* 本对象用于传递给MaterialInstance,用于已经确定好顶点格式的情况下，依然可修改部分设定(如instance)。
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*/
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class VertexInputStateInstance
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{
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VertexInputState *vis;
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VkVertexInputBindingDescription *binding_list;
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private:
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friend class VertexInputState;
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VertexInputStateInstance(VertexInputState *);
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public:
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~VertexInputStateInstance();
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bool SetInstance(const uint index,bool instance);
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bool SetInstance(const UTF8String &name,bool instance){return SetInstance(vis->GetBinding(name),instance);}
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void Write(VkPipelineVertexInputStateCreateInfo &vis)const;
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};//class VertexInputStateInstance
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/**
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* 顶点输入配置，负责具体的buffer绑定，提供给CommandBuffer使用<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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const VertexInputState *vis;
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int 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(const VertexInputState *);
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virtual ~VertexInput();
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bool Set(const int binding, VertexBuffer *vb,VkDeviceSize offset=0);
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bool Set(const UTF8String &name,VertexBuffer *vb,VkDeviceSize offset=0){return Set(vis->GetBinding(name),vb,offset);}
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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 int 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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