70 lines
1.9 KiB
C++
70 lines
1.9 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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struct VertexInputBuffer
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{
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//按API，可以一个binding绑多个attrib，但我们仅支持1v1
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VkVertexInputBindingDescription binding;
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VkVertexInputAttributeDescription attrib;
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VertexBuffer *buffer;
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public:
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VertexInputBuffer(VkVertexInputBindingDescription bind,VkVertexInputAttributeDescription attr,VertexBuffer *buf)
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{
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binding=bind;
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attrib=attr;
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buffer=buf;
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}
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};
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ObjectList<VertexInputBuffer> vib_list;
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List<VkBuffer> buf_list;
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List<VkDeviceSize> buf_offset;
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List<VkVertexInputBindingDescription> binding_list;
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List<VkVertexInputAttributeDescription> attribute_list;
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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()=default;
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virtual ~VertexInput()=default;
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bool Add(uint32_t location,VertexBuffer *,bool instance=false,VkDeviceSize offset=0);
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bool AddIndices(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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}
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public:
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const uint GetCount ()const{return buf_list.GetCount();}
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const VkBuffer * GetBuffer ()const{return buf_list.GetData();}
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const VkDeviceSize * GetOffset ()const{return buf_offset.GetData();}
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IndexBuffer * GetIndexBuffer()const{return indices_buffer;}
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const VkDeviceSize GetIndexOffset()const{return indices_offset;}
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const VkPipelineVertexInputStateCreateInfo GetPipelineVertexInputStateCreateInfo()const;
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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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