199 lines
9.8 KiB
C++
199 lines
9.8 KiB
C++
#ifndef HGL_SHADER_INCLUDE
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#define HGL_SHADER_INCLUDE
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#include<hgl/type/BaseString.h>
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#include<hgl/type/Map.h>
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#include<hgl/math/Math.h>
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// #include<hgl/graph/UBO.h>
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// #include<hgl/graph/SSBO.h>
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namespace hgl
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{
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namespace graph
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{
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constexpr uint HGL_MAX_SHADER_NAME_LENGTH=128; ///<最大Shader名称长度
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/**
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* 着色程序类型枚举
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*/
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enum ShaderType ///着色程序类型
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{
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stVertex=0, ///<顶点着色程序
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stTessControl, ///<镶嵌控制着色程序(需OpenGL 4.0或ARB_tessellation_shader)
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stTessEval, ///<镶嵌评估着色程序(需OpenGL 4.0或ARB_tessellation_shader)
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stGeometry, ///<几何着色程序
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stFragment, ///<片断着色程序
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stCompute, ///<计算着色程序(需OpenGL 4.3或ARB_compute_shader)
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stEnd
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};//enum ShaderType
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extern const char ShaderTypeName[ShaderType::stEnd][32]; ///<着色程序名称
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/**
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* 着色器程序
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*/
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class Shader
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{
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uint program;
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uint shader_index[ShaderType::stEnd];
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private:
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bool Link(); ///<连接使用当前着色程序
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protected:
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Map<UTF8String,int> attrib_location;
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Map<UTF8String,int> uniform_location;
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// Map<UTF8String,int> uniform_block_index;
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// MapObject<UTF8String,UBO> uniform_block_object;
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//
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// Map<UTF8String,int> ssbo_index;
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// MapObject<UTF8String,SSBO> ssbo_object;
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int _GetAttribLocation(const char *); ///<取得指定属性地址
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int _GetUniformLocation(const char *); ///<取得一个变量的地址
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// int _GetUniformBlockIndex(const char *); ///<取得一个只读数据块的地址索引
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// int _GetShaderStorageIndex(const char *); ///<取得一个数据存储区的地址索引
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public:
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Shader(){program=0;hgl_zero(shader_index,ShaderType::stEnd);}
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~Shader(){Clear();}
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void Clear(); ///<清除着色程序
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bool AddShader (const int shader_type,const char *); ///<增加一个着色程序
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bool AddVertexShader (const char *code){return AddShader(ShaderType::stVertex,code);} ///<增加一个顶点着色程序
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bool AddGeometryShader (const char *code){return AddShader(ShaderType::stGeometry,code);} ///<增加一个几何着色程序
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bool AddFragmentShader (const char *code){return AddShader(ShaderType::stFragment,code);} ///<增加一个片断着色程序
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bool AddComputeShader (const char *code){return AddShader(ShaderType::stFragment,code);} ///<增加一个计算着色程序
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bool AddTessShader (const char *tess_control_shader,const char *tess_evaluation_shader) ///<增加一个镶嵌着色程序
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{
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if(!AddShader(ShaderType::stTessControl,tess_control_shader ))return(false);
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if(!AddShader(ShaderType::stTessEval, tess_evaluation_shader ))return(false);
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return(true);
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}
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bool Build(); ///<构建当前添加的着色程序
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bool Use(); ///<使用当前着色程序
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int GetAttribLocation(const char *); ///<取得指定属性地址
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int GetUniformLocation(const char *); ///<取得一个变量的地址
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// int GetUniformBlockIndex(const char *); ///<取得一个只读数据块索引
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// int GetShaderStorageIndex(const char *); ///<取得一个数据存储区索引
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//bool SetAttrib1f(int,float);
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//bool GetAttrib1f(int,float &);
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public: //设置一致变量用函数
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bool SetUniform1f(int,float);
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bool SetUniform2f(int,float,float);
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bool SetUniform3f(int,float,float,float);
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bool SetUniform4f(int,float,float,float,float);
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bool SetUniform1i(int,int);
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bool SetUniform2i(int,int,int);
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bool SetUniform3i(int,int,int,int);
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bool SetUniform4i(int,int,int,int,int);
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bool SetUniform1ui(int,unsigned int);
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bool SetUniform2ui(int,unsigned int,unsigned int);
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bool SetUniform3ui(int,unsigned int,unsigned int,unsigned int);
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bool SetUniform4ui(int,unsigned int,unsigned int,unsigned int,unsigned int);
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bool SetUniform1fv(int,int count,const float *);
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bool SetUniform2fv(int,int count,const float *);
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bool SetUniform3fv(int,int count,const float *);
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bool SetUniform4fv(int,int count,const float *);
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bool SetUniform2fv(int index,const Vector2f &v){return SetUniform2fv(index,1,(const float *)&v);}
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bool SetUniform3fv(int index,const Vector3f &v){return SetUniform3fv(index,1,(const float *)&v);}
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bool SetUniform4fv(int index,const Vector4f &v){return SetUniform4fv(index,1,(const float *)&v);}
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bool SetUniform1iv(int,int count,const int *);
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bool SetUniform2iv(int,int count,const int *);
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bool SetUniform3iv(int,int count,const int *);
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bool SetUniform4iv(int,int count,const int *);
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bool SetUniform1uiv(int,int count,const unsigned int *);
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bool SetUniform2uiv(int,int count,const unsigned int *);
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bool SetUniform3uiv(int,int count,const unsigned int *);
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bool SetUniform4uiv(int,int count,const unsigned int *);
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bool SetUniformMatrix2fv(int,const float *);
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bool SetUniformMatrix3fv(int,const float *);
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bool SetUniformMatrix4fv(int,const float *);
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bool SetUniformMatrix2x3fv(int,const float *);
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bool SetUniformMatrix3x2fv(int,const float *);
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bool SetUniformMatrix2x4fv(int,const float *);
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bool SetUniformMatrix4x2fv(int,const float *);
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bool SetUniformMatrix3x4fv(int,const float *);
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bool SetUniformMatrix4x3fv(int,const float *);
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public:
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bool SetUniform1f(const char *,float);
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bool SetUniform2f(const char *,float,float);
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bool SetUniform3f(const char *,float,float,float);
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bool SetUniform4f(const char *,float,float,float,float);
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bool SetUniform1i(const char *,int);
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bool SetUniform2i(const char *,int,int);
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bool SetUniform3i(const char *,int,int,int);
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bool SetUniform4i(const char *,int,int,int,int);
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bool SetUniform1ui(const char *,unsigned int);
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bool SetUniform2ui(const char *,unsigned int,unsigned int);
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bool SetUniform3ui(const char *,unsigned int,unsigned int,unsigned int);
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bool SetUniform4ui(const char *,unsigned int,unsigned int,unsigned int,unsigned int);
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bool SetUniform1fv(const char *,int count,const float *);
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bool SetUniform2fv(const char *,int count,const float *);
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bool SetUniform3fv(const char *,int count,const float *);
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bool SetUniform4fv(const char *,int count,const float *);
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bool SetUniform2fv(const char *name,const Vector2f &v){return SetUniform2fv(name,1,(const float *)&v);}
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bool SetUniform3fv(const char *name,const Vector3f &v){return SetUniform3fv(name,1,(const float *)&v);}
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bool SetUniform4fv(const char *name,const Vector4f &v){return SetUniform4fv(name,1,(const float *)&v);}
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bool SetUniform1iv(const char *,int count,const int *);
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bool SetUniform2iv(const char *,int count,const int *);
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bool SetUniform3iv(const char *,int count,const int *);
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bool SetUniform4iv(const char *,int count,const int *);
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bool SetUniform1uiv(const char *,int count,const unsigned int *);
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bool SetUniform2uiv(const char *,int count,const unsigned int *);
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bool SetUniform3uiv(const char *,int count,const unsigned int *);
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bool SetUniform4uiv(const char *,int count,const unsigned int *);
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bool SetUniformMatrix2fv(const char *,const float *);
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bool SetUniformMatrix3fv(const char *,const float *);
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bool SetUniformMatrix4fv(const char *,const float *);
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bool SetUniformMatrix3fv(const char *name,const Matrix3f &m){return SetUniformMatrix3fv(name,(const float *)&m);}
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bool SetUniformMatrix4fv(const char *name,const Matrix4f &m){return SetUniformMatrix4fv(name,(const float *)&m);}
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bool SetUniformMatrix2x3fv(const char *,const float *);
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bool SetUniformMatrix3x2fv(const char *,const float *);
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bool SetUniformMatrix2x4fv(const char *,const float *);
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bool SetUniformMatrix4x2fv(const char *,const float *);
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bool SetUniformMatrix3x4fv(const char *,const float *);
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bool SetUniformMatrix4x3fv(const char *,const float *);
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// public: //Uniform Block
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//
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// UBO *GetUniformBlock(const char *,uint=HGL_DYNAMIC_DRAW);
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// SSBO *GetShaderStorage(const char *,uint=HGL_DYNAMIC_DRAW);
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};//class Shader
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}//namespace graph
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}//namespace hgl
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#endif//HGL_SHADER_INCLUDE
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