174 lines
7.3 KiB
C++
174 lines
7.3 KiB
C++
#ifndef HGL_GRAPH_VULKAN_BUFFER_DATA_INCLUDE
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#define HGL_GRAPH_BUFFER_DATA_INCLUDE
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#include"VK.h"
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VK_NAMESPACE_BEGIN
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/**
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* 缓冲区数据管理类
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*/
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class BufferData
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{
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protected:
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VkFormat format; ///<数据格式
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uint32_t count; ///<数据个数
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uint32_t stride; ///<单个数据字节数
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uint8_t * buffer_data; ///<缓冲区数据
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uint32_t total_bytes; ///<数据总字节数
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protected:
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friend BufferData *CreateBufferData(void *data,const VkFormat f,const uint32_t count,const uint32_t stride);
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BufferData(uint8_t *data,const VkFormat f,const uint32_t c,const uint32_t s)
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{
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buffer_data =data;
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format=f;
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count=c;
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stride=s;
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total_bytes=stride*count;
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}
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public:
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virtual ~BufferData()=default;
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uint GetStride ()const { return data_stride; } ///<取得每一组数据字节数
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uint32_t GetCount ()const { return data_count; } ///<取得数据数量
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uint32_t GetTotalBytes ()const { return total_bytes; } ///<取得数据总字节数
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void * GetData ()const { return buffer_data; } ///<取得数据指针
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};//class BufferData
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BufferData *CreateBufferData(const uint32_t &length);
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BufferData *CreateBufferData(void *data,const uint32_t &length);
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#define DATA_COMPOMENT_RED 0x01
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#define DATA_COMPOMENT_GREEN 0x02
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#define DATA_COMPOMENT_BLUE 0x04
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#define DATA_COMPOMENT_ALPHA 0x08
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#define DATA_COMPOMENT_X DATA_COMPOMENT_RED
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#define DATA_COMPOMENT_Y DATA_COMPOMENT_GREEN
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#define DATA_COMPOMENT_Z DATA_COMPOMENT_BLUE
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#define DATA_COMPOMENT_W DATA_COMPOMENT_ALPHA
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#define DATA_COMPOMENT_DEPTH 0x10
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/**
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* 非打包型数据<Br>
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* 该类数据未被打包，所以可以直接对成份数据逐一访问
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*/
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class BufferDataDirect:public BufferData
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{
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VkFormat
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};//
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/**
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* 打包型数据<Br>
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* 该类数据由于被打包，所以无法直接进行读写
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*/
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class BufferDataPack:public BufferData
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{
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VkFormat format; ///<数据格式
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uint byte; ///<单个数据字节数
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uint compoment; ///<数据成份
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public:
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};//
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class VertexBufferData:public BufferData
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{
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uint32_t data_type; ///<单个数据类型 (GL_BYTE,GL_UNSIGNED_SHORT,GL_FLOAT等)
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uint data_bytes; ///<单个数据字节数 (GL_BYTE为1,GL_UNSIGNED_SHORT为2,GL_FLOAT为4等)
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uint data_comp; ///<数据成员数 (1/2/3/4，如2D纹理坐标用2，3D坐标/法线用3)
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uint data_stride; ///<每组数据字节数
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uint32_t data_count; ///<数据数量
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protected:
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friend VertexBufferData *CreateVertexBufferData(void *data,const uint32_t &dt,const uint &dbytes,const uint &dcm,const uint32_t &count);
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VertexBufferData(const uint32_t &dt,const uint &dbytes,const uint &dcm,const uint32_t &count,char *data):BufferData(data,dbytes*dcm*count)
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{
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data_type=dt;
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data_bytes=dbytes;
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data_comp=dcm;
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data_stride=data_comp*data_bytes;
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data_count=count;
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}
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public:
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virtual ~VertexBufferData()=default;
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uint32_t GetDataType ()const{return data_type;} ///<取得数据类型
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uint GetComponent ()const{return data_comp;} ///<取数每一组数据中的数据数量
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uint GetStride ()const{return data_stride;} ///<取得每一组数据字节数
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uint32_t GetCount ()const{return data_count;} ///<取得数据数量
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uint32_t GetTotalBytes ()const{return total_bytes;} ///<取得数据总字节数
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};
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/**
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* 创建一个顶点数据缓冲区<br>
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* 这种方式创建的缓冲区，它会自行分配内存，最终释放
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* @param dt 单个数据类型 (GL_BYTE,GL_UNSIGNED_SHORT,GL_FLOAT等)
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* @param dbytes 单个数据字节数 (GL_BYTE为1,GL_UNSIGNED_SHORT为2,GL_FLOAT为4等)
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* @param dcm 数据成员数 (1/2/3/4，如2D纹理坐标用2，3D坐标/法线用3)
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* @param count 数据数量
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*/
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VertexBufferData *CreateVertexBufferData(const uint32_t &dt,const uint &dbytes,const uint &dcm,const uint32_t &count);
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/**
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* 创建一个顶点数据缓冲区
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* @param data 数据指针
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* @param dt 单个数据类型 (GL_BYTE,GL_UNSIGNED_SHORT,GL_FLOAT等)
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* @param dbytes 单个数据字节数 (GL_BYTE为1,GL_UNSIGNED_SHORT为2,GL_FLOAT为4等)
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* @param dcm 数据成员数 (1/2/3/4，如2D纹理坐标用2，3D坐标/法线用3)
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* @param count 数据数量
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*/
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VertexBufferData *CreateVertexBufferData(void *data,const uint32_t &dt,const uint &dbytes,const uint &dcm,const uint32_t &count);
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#define VBDATA_CREATE_FUNC(short_name,type,comp_count,vk_type) \
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inline VertexBufferData *VB##comp_count##short_name(const uint32_t &count){return CreateVertexBufferData(vk_type,sizeof(type),comp_count,count);} \
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inline VertexBufferData *VB##comp_count##short_name(const uint32_t &count,const type *data){return CreateVertexBufferData((void *)data,vk_type,sizeof(type),comp_count,count);}
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// UNORM 指输入无符号数，自动转换为 0.0 to 1.0 的浮点数
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// SNORM 指输入有符号数，自动转换为-1.0 to +1.0 的浮点数
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#define VBDATA_NSI(comp_count,type,vk_type_start) \
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VBDATA_CREATE_FUNC(type,comp_count,
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#define VBDATA_UIF(comp_count,utype,itype,ftype,vk_type_start) \
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VBDATA_CREATE_FUNC(u,utype,comp_count,vk_type_start);
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VBDATA_CREATE_FUNC(i,itype,comp_count,vk_type_start+1);
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VBDATA_CREATE_FUNC(f,ftype,comp_count,vk_type_start+2);
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#define VBDATA_UIF_1234(utype,itype,ftype,vk_type_start) \
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VBDATA_UIF(1,utype,itype,ftype,vk_type_start) \
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VBDATA_UIF(2,utype,itype,ftype,vk_type_start+3) \
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VBDATA_UIF(3,utype,itype,ftype,vk_type_start+6) \
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VBDATA_UIF(4,utype,itype,ftype,vk_type_start+9)
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VBDATA_UIF_1234(uint32,int32,float ,VK_FORMAT_R32_UINT)
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VBDATA_UIF_1234(uint64,int64,double,VK_FORMAT_R64_UINT)
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#undef VBDATA_CREATE_FUNC
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//inline VertexBufferData *EB16(const uint16 &count){return CreateVertexBufferData(GL_UNSIGNED_SHORT, 2,1,count);}
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//inline VertexBufferData *EB32(const uint32 &count){return CreateVertexBufferData(GL_UNSIGNED_INT, 4,1,count);}
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VK_NAMESPACE_END
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#endif//HGL_GRAPH_VULKAN_BUFFER_DATA_INCLUDE
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