#ifndef HGL_VERTEX_BUFFER_OBJECT_INCLUDE
#define HGL_VERTEX_BUFFER_OBJECT_INCLUDE

#include<hgl/type/Color3f.h>
#include<hgl/type/Color4f.h>
#include<hgl/type/RectScope.h>
// #include<hgl/type/BaseString.h>
#include<hgl/graph/VertexBufferBase.h>
//#include<hgl/LogInfo.h>
#include<GLEWCore/glew.h>
namespace hgl
{
    namespace graph
    {
        class VertexBufferControl;

        /**
        * 顶点属性数据实际模板
        */
        template<typename T,int C> class VertexBuffer:public VertexBufferBase
        {
        protected:

            T *mem_type;																				///<符合当前类型的地址
            T *access;																					///<当前访问地址

            T *start;																					///<访问起始地址

        public:

            VertexBuffer(int _size,const T *_data=nullptr,uint level=GL_STATIC_DRAW):VertexBufferBase(level,C*_size*sizeof(T))
            {
                dc_num=C;

                count=_size;

                mem_type=(T *)GetData();
                access=0;
                start=0;

                if(_data)
                    memcpy(mem_type,_data,bytes);
            }

            virtual ~VertexBuffer()=default;

            int GetDataBytes()const
            {
                return sizeof(T);
            }

            void SetCount(int _count)
            {
                count=_count;

                SetDataSize(_count*C*sizeof(T));

                mem_type=(T *)GetData();
                access=0;
                start=0;
            }

            /**
            * 取得数据区地址
            * @param offset 从第几个数据开始访问
            * @return 访问地址
            */
            T *Get(int offset=0)
            {
                if(!mem_type||offset>=count)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer::Get() out,offset:")+OSString(offset));
                    return(nullptr);
                }

                return mem_type+offset*C;
            }

            /**
            * 开始访问数据区
            * @param offset 从第几个数据开始访问
            * @return 访问地址
            */
            void *Begin(int offset=0)
            {
                if(access)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer::Begin() access!=0,offset:")+OSString(offset));
                    return(nullptr);
                }

                access=Get(offset);

                if(access)
                    start=access;

                return access;
            }

            /**
            * 结束访问
            */
            void End()
            {
                ChangeVertexBuffer(	((char *)start )-((char *)mem_type),
                                    ((char *)access)-((char *)start),
                                    start);

                access=nullptr;
                start=nullptr;
            }

            /**
            * 写入指定数量的数据
            * @param vp 数据指针
            * @param number 数据数量
            */
            bool WriteData(const T *vp,const int number)
            {
                if(!this->access||this->access+C*number>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer::Write(const T *,number) out,number:")+OSString(number));
                    return(false);
                }

                memcpy(access,vp,C*number*sizeof(T));

                access+=C*number;

                return(true);
            }
        };//class VertexBuffer

        /**
        * 一元数据缓冲区
        */
        template<typename T> class VertexBuffer1:public VertexBuffer<T,1>
        {
        public:

            using VertexBuffer<T,1>::VertexBuffer;
            virtual ~VertexBuffer1()=default;

            uint	GetDataType()const;

            bool Write(const T v1)
            {
                if(!this->access||this->access+1>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer1::Write(const T) out"));
                    return(false);
                }

                *this->access++=v1;
                return(true);
            }

            /**
             * 将一个值重复多次写入缓冲区
             * @param v 值
             * @param count 写入数量
             */
            bool Write(const T v,const int count)
            {
                if(!this->access||this->access+count>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer1::Write(const T,")+OSString(count)+OS_TEXT(") out"));
                    return(false);
                }

                hgl_set(this->access,v,count);
                this->access+=count;
                return(true);
            }
        };//class VertexBuffer1

        /**
        * 二元数据缓冲区
        */
        template<typename T> class VertexBuffer2:public VertexBuffer<T,2>
        {
        public:

            using VertexBuffer<T,2>::VertexBuffer;
            virtual ~VertexBuffer2()=default;

            uint	GetDataType()const;

            bool Write(const T v1,const T v2)
            {
                if(!this->access||this->access+2>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::Write(const T ,const T) out"));
                    return(false);
                }

                *this->access++=v1;
                *this->access++=v2;

                return(true);
            }

            bool Write(const T *v)
            {
                if(!this->access||this->access+2>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::Write(T *) out"));
                    return(false);
                }

                *this->access++=*v++;
                *this->access++=*v;

                return(true);
            }

            bool Write(const Vector2f &v)
            {
                if(!this->access||this->access+2>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::Write(vec2 &) out"));
                    return(false);
                }

                *this->access++=v.x;
                *this->access++=v.y;

                return(true);
            }

            /**
             * 将一个值重复多次写入缓冲区
             * @param v 值
             * @param count 写入数量
             */
            bool Write(const Vector2f &v,const int count)
            {
                if(!this->access||this->access+(count<<1)>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer1::Write(const Vector2f &,")+OSString(count)+OS_TEXT(") out"));
                    return(false);
                }

                for(int i=0;i<count;i++)
                {
                    *this->access++=v.x;
                    *this->access++=v.y;
                }

                return(true);
            }

            bool WriteLine(const T start_x,const T start_y,const T end_x,const T end_y)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::WriteLine(T,T,T,T) out"));
                    return(false);
                }

                *this->access++=start_x;
                *this->access++=start_y;
                *this->access++=end_x;
                *this->access++=end_y;

                return(true);
            }

            bool WriteLine(const Vector2f &start,const Vector2f &end)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::WriteLine(vec2,vec2) out"));
                    return(false);
                }

                *this->access++=start.x;
                *this->access++=start.y;
                *this->access++=end.x;
                *this->access++=end.y;

                return(true);
            }

            /**
            * 写入2D三角形
            */
            bool WriteTriangle(const Vector2f &v1,const Vector2f &v2,const Vector2f &v3)
            {
                if(!this->access||this->access+6>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::WriteTriangle(vec2,vec2,vec2) out"));
                    return(false);
                }

                *this->access++=v1.x;
                *this->access++=v1.y;

                *this->access++=v2.x;
                *this->access++=v2.y;

                *this->access++=v3.x;
                *this->access++=v3.y;

                return(true);
            }

            /**
            * 写入2D三角形
            */
            bool WriteTriangle(const Vector2f *v)
            {
                if(!this->access||this->access+6>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer2::WriteTriangle(vec2 *) out"));
                    return(false);
                }

                *this->access++=v->x;
                *this->access++=v->y;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;

                return(true);
            }

            /**
            * 写入2D四边形坐标数据
            */
            bool WriteQuad(const Vector2f &lt,const Vector2f &rt,const Vector2f &rb,const Vector2f &lb)
            {
                if(WriteTriangle(lt,lb,rb))
                if(WriteTriangle(lt,rb,rt))
                    return(true);

//                 LOG_HINT(OS_TEXT("VertexBuffer2::WriteQuad(vec2 &,vec2 &,vec2 &,vec2 &) error"));
                return(false);
            }

            /**
            * 写入2D矩形（两个三角形）坐标数据
            */
            bool WriteRect(const T left,const T top,const T width,const T height)
            {
                const Vector2f lt(left		,top);
                const Vector2f rt(left+width,top);
                const Vector2f rb(left+width,top+height);
                const Vector2f lb(left		,top+height);

                return WriteQuad(lt,rt,rb,lb);
            }
        };//class VertexBuffer2

        /**
        * 三元数据缓冲区
        */
        template<typename T> class VertexBuffer3:public VertexBuffer<T,3>
        {
        public:

            using VertexBuffer<T,3>::VertexBuffer;
            virtual ~VertexBuffer3()=default;

            uint	GetDataType()const;

            /**
            * 计算绑定盒
            * @param min_vertex 最小值坐标
            * @param max_vertex 最大值坐标
            */
            template<typename V>
            void GetBoundingBox(V &min_vertex,V &max_vertex)
            {
                T *p=this->mem_type;

                //先以corner为最小值,length为最大值，求取最小最大值
                min_vertex.x=*p++;
                min_vertex.y=*p++;
                min_vertex.z=*p++;

                max_vertex=min_vertex;

                for(int i=1;i<this->count;i++)
                {
                    if(*p<min_vertex.x)min_vertex.x=*p;
                    if(*p>max_vertex.x)max_vertex.x=*p;
                    ++p;

                    if(*p<min_vertex.y)min_vertex.y=*p;
                    if(*p>max_vertex.y)max_vertex.y=*p;
                    ++p;

                    if(*p<min_vertex.z)min_vertex.z=*p;
                    if(*p>max_vertex.z)max_vertex.z=*p;
                    ++p;
                }
            }

            bool Write(const T v1,const T v2,const T v3)
            {
                if(!this->access||this->access+3>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(T,T,T) out"));
                    return(false);
                }

                *this->access++=v1;
                *this->access++=v2;
                *this->access++=v3;

                return(true);
            }

            bool Write(const T *v)
            {
                if(!this->access||this->access+3>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(T *) out"));
                    return(false);
                }

                *this->access++=*v++;
                *this->access++=*v++;
                *this->access++=*v;

                return(true);
            }

            bool Write(const Vector3f &v)
            {
                if(!this->access||this->access+3>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(vec3 &) out"));
                    return(false);
                }

                *this->access++=v.x;
                *this->access++=v.y;
                *this->access++=v.z;

                return(true);
            }

            bool Write(const Vector4f &v)
            {
                if(!this->access||this->access+3>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(vec4 &) out"));
                    return(false);
                }

                *this->access++=v.x;
                *this->access++=v.y;
                *this->access++=v.z;

                return(true);
            }

            /**
             * 将一个值重复多次写入缓冲区
             * @param v 值
             * @param count 写入数量
             */
            bool Write(const Vector3f &v,const int count)
            {
                if(!this->access||this->access+(count*3)>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(const Vector3f,")+OSString(count)+OS_TEXT(") out"));
                    return(false);
                }

                for(int i=0;i<count;i++)
                {
                    *this->access++=v.x;
                    *this->access++=v.y;
                    *this->access++=v.z;
                }

                return(true);
            }

            bool Write(const Color3f &v)
            {
                if(!this->access||this->access+3>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::Write(color3f &) out"));
                    return(false);
                }

                *this->access++=v.r;
                *this->access++=v.g;
                *this->access++=v.b;

                return(true);
            }

            bool WriteLine(const T start_x,const T start_y,const T start_z,const T end_x,const T end_y,const T end_z)
            {
                if(!this->access||this->access+6>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::WriteLine(T,T,T,T,T,T) out"));
                    return(false);
                }

                *this->access++=start_x;
                *this->access++=start_y;
                *this->access++=start_z;
                *this->access++=end_x;
                *this->access++=end_y;
                *this->access++=end_z;

                return(true);
            }

            bool WriteLine(const Vector3f &start,const Vector3f &end)
            {
                if(!this->access||this->access+6>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::WriteLine(vec3,vec3) out"));
                    return(false);
                }

                *this->access++=start.x;
                *this->access++=start.y;
                *this->access++=start.z;
                *this->access++=end.x;
                *this->access++=end.y;
                *this->access++=end.z;

                return(true);
            }

            /**
            * 写入3D三角形
            */
            bool WriteTriangle(const Vector3f &v1,const Vector3f &v2,const Vector3f &v3)
            {
                if(!this->access||this->access+9>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::WriteTriangle(vec3,vec3,vec3) out"));
                    return(false);
                }

                *this->access++=v1.x;
                *this->access++=v1.y;
                *this->access++=v1.z;

                *this->access++=v2.x;
                *this->access++=v2.y;
                *this->access++=v2.z;

                *this->access++=v3.x;
                *this->access++=v3.y;
                *this->access++=v3.z;

                return(true);
            }

            /**
            * 写入3D三角形
            */
            bool WriteTriangle(const Vector3f *v)
            {
                if(!this->access||this->access+9>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer3::WriteTriangle(vec3 *) out"));
                    return(false);
                }

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;

                return(true);
            }

            /**
            * 写入3D四边形坐标数据
            */
            bool WriteQuad(const Vector3f &lt,const Vector3f &rt,const Vector3f &rb,const Vector3f &lb)
            {
                if(WriteTriangle(lt,lb,rb))
                if(WriteTriangle(lt,rb,rt))
                    return(true);

//                 LOG_HINT(OS_TEXT("VertexBuffer3::WriteQuad(vec3 &,vec3 &,vec3 &,vec3 &) error"));
                return(false);
            }
        };//class VertexBuffer3

        /**
        * 四元数据缓冲区
        */
        template<typename T> class VertexBuffer4:public VertexBuffer<T,4>
        {
        public:

            using VertexBuffer<T,4>::VertexBuffer;
            virtual ~VertexBuffer4()=default;

            uint	GetDataType()const;

			/**
            * 计算绑定盒
            * @param min_vertex 最小值坐标
            * @param max_vertex 最大值坐标
            */
            template<typename V>
            void GetBoundingBox(V &min_vertex,V &max_vertex)
            {
                T *p=this->mem_type;

                //先以corner为最小值,length为最大值，求取最小最大值
                min_vertex.x=*p++;
                min_vertex.y=*p++;
                min_vertex.z=*p++;

                max_vertex=min_vertex;

                for(int i=1;i<this->count;i++)
                {
                    if(*p<min_vertex.x)min_vertex.x=*p;
                    if(*p>max_vertex.x)max_vertex.x=*p;
                    ++p;

                    if(*p<min_vertex.y)min_vertex.y=*p;
                    if(*p>max_vertex.y)max_vertex.y=*p;
                    ++p;

                    if(*p<min_vertex.z)min_vertex.z=*p;
                    if(*p>max_vertex.z)max_vertex.z=*p;
                    ++p;
                }
            }

            bool Write(const T v1,const T v2,const T v3,const T v4)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::Write(T,T,T,T) out"));
                    return(false);
                }

                *this->access++=v1;
                *this->access++=v2;
                *this->access++=v3;
                *this->access++=v4;

                return(true);
            }

            bool Write(const T *v)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::Write(T *) out"));
                    return(false);
                }

                *this->access++=*v++;
                *this->access++=*v++;
                *this->access++=*v++;
                *this->access++=*v;

                return(true);
            }

            bool Write(const Vector4f &v)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::Write(color4 &) out"));
                    return(false);
                }

                *this->access++=v.x;
                *this->access++=v.y;
                *this->access++=v.z;
                *this->access++=v.w;

                return(true);
            }

            bool Write(const Color4f &v)
            {
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::Write(color4 &) out"));
                    return(false);
                }

                *this->access++=v.r;
                *this->access++=v.g;
                *this->access++=v.b;
                *this->access++=v.a;

                return(true);
            }

            /**
             * 将一个值重复多次写入缓冲区
             * @param v 值
             * @param count 写入数量
             */
            bool Write(const Vector4f &v,const int count)
            {
                if(!this->access||this->access+(count<<2)>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::Write(const Vector4f,")+OSString(count)+OS_TEXT(") out"));
                    return(false);
                }

                for(int i=0;i<count;i++)
                {
                    *this->access++=v.x;
                    *this->access++=v.y;
                    *this->access++=v.z;
                    *this->access++=v.w;
                }

                return(true);
            }

            bool WriteLine(const T start_x,const T start_y,const T start_z,const T end_x,const T end_y,const T end_z)
            {
                if(!this->access||this->access+8>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteLine(T,T,T,T,T,T) out"));
                    return(false);
                }

                *this->access++=start_x;
                *this->access++=start_y;
                *this->access++=start_z;
                *this->access++=1.0f;
                *this->access++=end_x;
                *this->access++=end_y;
                *this->access++=end_z;
                *this->access++=1.0f;

                return(true);
            }

            bool WriteLine(const Vector3f &start,const Vector3f &end)
            {
                if(!this->access||this->access+8>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteLine(vec3,vec3) out"));
                    return(false);
                }

                *this->access++=start.x;
                *this->access++=start.y;
                *this->access++=start.z;
                *this->access++=1.0f;
                *this->access++=end.x;
                *this->access++=end.y;
                *this->access++=end.z;
                *this->access++=1.0f;

                return(true);
            }

            /**
            * 写入3D三角形
            */
            bool WriteTriangle(const Vector3f &v1,const Vector3f &v2,const Vector3f &v3)
            {
                if(!this->access||this->access+12>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteTriangle(vec3,vec3,vec3) out"));
                    return(false);
                }

                *this->access++=v1.x;
                *this->access++=v1.y;
                *this->access++=v1.z;
                *this->access++=1.0f;

                *this->access++=v2.x;
                *this->access++=v2.y;
                *this->access++=v2.z;
                *this->access++=1.0f;

                *this->access++=v3.x;
                *this->access++=v3.y;
                *this->access++=v3.z;
                *this->access++=1.0f;

                return(true);
            }

            /**
            * 写入3D三角形
            */
            bool WriteTriangle(const Vector3f *v)
            {
                if(!this->access||this->access+12>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteTriangle(vec3 *) out"));
                    return(false);
                }

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;
                *this->access++=1.0f;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;
                *this->access++=1.0f;
                ++v;

                *this->access++=v->x;
                *this->access++=v->y;
                *this->access++=v->z;
                *this->access++=1.0f;

                return(true);
            }

			/**
			* 写入2D矩形,注:这个函数会依次写入Left,Top,Width,Height四个值
			*/
			template<typename V>
			bool WriteRectangle2D(const RectScope2<V> &rect)
			{
                if(!this->access||this->access+4>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteRectangle2D(RectScope2 ) out"));
                    return(false);
                }

                *this->access++=rect.Left;
                *this->access++=rect.Top;
                *this->access++=rect.Width;
                *this->access++=rect.Height;

				return(true);
			}

			/**
			* 写入2D矩形,注:这个函数会依次写入Left,Top,Width,Height四个值
			*/
			template<typename V>
			bool WriteRectangle2D(const RectScope2<V> *rect,const int count)
			{
                if(!this->access||this->access+(4*count)>this->mem_end)
                {
//                     LOG_HINT(OS_TEXT("VertexBuffer4::WriteRectangle2D(RectScope2 *,count) out"));
                    return(false);
                }

				for(int i=0;i<count;i++)
				{
					*this->access++=rect->Left;
					*this->access++=rect->Top;
					*this->access++=rect->Width;
					*this->access++=rect->Height;

					++rect;
				}

				return(true);
			}
        };//class VertexBuffer4

        //缓冲区具体数据类型定义
 		typedef VertexBuffer1<int8	>	VB1i8	,VB1b;	template<> inline uint VertexBuffer1<int8	>::GetDataType()const{return GL_BYTE;			}
        typedef VertexBuffer1<int16	>	VB1i16	,VB1s;	template<> inline uint VertexBuffer1<int16	>::GetDataType()const{return GL_SHORT;			}
        typedef VertexBuffer1<int32	>	VB1i32	,VB1i;	template<> inline uint VertexBuffer1<int32	>::GetDataType()const{return GL_INT;			}
 		typedef VertexBuffer1<uint8	>	VB1u8	,VB1ub;	template<> inline uint VertexBuffer1<uint8	>::GetDataType()const{return GL_UNSIGNED_BYTE;	}
        typedef VertexBuffer1<uint16>	VB1u16	,VB1us;	template<> inline uint VertexBuffer1<uint16	>::GetDataType()const{return GL_UNSIGNED_SHORT;}
        typedef VertexBuffer1<uint32>	VB1u32	,VB1ui;	template<> inline uint VertexBuffer1<uint32	>::GetDataType()const{return GL_UNSIGNED_INT;	}
        typedef VertexBuffer1<float	>	VB1f;			template<> inline uint VertexBuffer1<float	>::GetDataType()const{return GL_FLOAT;			}
        typedef VertexBuffer1<double>	VB1d;			template<> inline uint VertexBuffer1<double	>::GetDataType()const{return GL_DOUBLE;		}

		typedef VertexBuffer2<int8	>	VB2i8	,VB2b;	template<> inline uint VertexBuffer2<int8	>::GetDataType()const{return GL_BYTE;			}
        typedef VertexBuffer2<int16	>	VB2i16	,VB2s;	template<> inline uint VertexBuffer2<int16	>::GetDataType()const{return GL_SHORT;			}
        typedef VertexBuffer2<int32	>	VB2i32	,VB2i;	template<> inline uint VertexBuffer2<int32	>::GetDataType()const{return GL_INT;			}
		typedef VertexBuffer2<uint8	>	VB2u8	,VB2ub;	template<> inline uint VertexBuffer2<uint8	>::GetDataType()const{return GL_UNSIGNED_BYTE;	}
        typedef VertexBuffer2<uint16>	VB2u16	,VB2us;	template<> inline uint VertexBuffer2<uint16	>::GetDataType()const{return GL_UNSIGNED_SHORT;}
        typedef VertexBuffer2<uint32>	VB2u32	,VB2ui;	template<> inline uint VertexBuffer2<uint32	>::GetDataType()const{return GL_UNSIGNED_INT;	}
        typedef VertexBuffer2<float	>	VB2f;			template<> inline uint VertexBuffer2<float	>::GetDataType()const{return GL_FLOAT;			}
        typedef VertexBuffer2<double>	VB2d;			template<> inline uint VertexBuffer2<double	>::GetDataType()const{return GL_DOUBLE;		}

		typedef VertexBuffer3<int8	>	VB3i8	,VB3b;	template<> inline uint VertexBuffer3<int8	>::GetDataType()const{return GL_BYTE;			}
        typedef VertexBuffer3<int16	>	VB3i16	,VB3s;	template<> inline uint VertexBuffer3<int16	>::GetDataType()const{return GL_SHORT;			}
        typedef VertexBuffer3<int32	>	VB3i32	,VB3i;	template<> inline uint VertexBuffer3<int32	>::GetDataType()const{return GL_INT;			}
		typedef VertexBuffer3<uint8	>	VB3u8	,VB3ub;	template<> inline uint VertexBuffer3<uint8	>::GetDataType()const{return GL_UNSIGNED_BYTE;	}
        typedef VertexBuffer3<uint16>	VB3u16	,VB3us;	template<> inline uint VertexBuffer3<uint16	>::GetDataType()const{return GL_UNSIGNED_SHORT;}
        typedef VertexBuffer3<uint32>	VB3u32	,VB3ui;	template<> inline uint VertexBuffer3<uint32	>::GetDataType()const{return GL_UNSIGNED_INT;	}
        typedef VertexBuffer3<float	>	VB3f;			template<> inline uint VertexBuffer3<float	>::GetDataType()const{return GL_FLOAT;			}
        typedef VertexBuffer3<double>	VB3d;			template<> inline uint VertexBuffer3<double	>::GetDataType()const{return GL_DOUBLE;		}

	    typedef VertexBuffer4<int8	>	VB4i8	,VB4b;	template<> inline uint VertexBuffer4<int8	>::GetDataType()const{return GL_BYTE;			}
        typedef VertexBuffer4<int16	>	VB4i16	,VB4s;	template<> inline uint VertexBuffer4<int16	>::GetDataType()const{return GL_SHORT;			}
        typedef VertexBuffer4<int32	>	VB4i32	,VB4i;	template<> inline uint VertexBuffer4<int32	>::GetDataType()const{return GL_INT;			}
		typedef VertexBuffer4<uint8	>	VB4u8	,VB4ub;	template<> inline uint VertexBuffer4<uint8	>::GetDataType()const{return GL_UNSIGNED_BYTE;	}
        typedef VertexBuffer4<uint16>	VB4u16	,VB4us;	template<> inline uint VertexBuffer4<uint16	>::GetDataType()const{return GL_UNSIGNED_SHORT;}
        typedef VertexBuffer4<uint32>	VB4u32	,VB4ui;	template<> inline uint VertexBuffer4<uint32	>::GetDataType()const{return GL_UNSIGNED_INT;	}
        typedef VertexBuffer4<float	>	VB4f;			template<> inline uint VertexBuffer4<float	>::GetDataType()const{return GL_FLOAT;			}
        typedef VertexBuffer4<double>	VB4d;			template<> inline uint VertexBuffer4<double	>::GetDataType()const{return GL_DOUBLE;		}
    }//namespace graph
}//namespace hgl
#endif//HGL_VERTEX_BUFFER_OBJECT_INCLUDE