include/VR3ShaderProgram.h
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00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 // Copyright (C) 2010 Daniele Giannetti 00012 // 00013 // This file is part of VR3Lib. 00014 // The VR3Lib is free software, but is distributed in the static precompiled 00015 // version as it is NOT open source. The VR3Lib may be used in any virtual 00016 // reality application free of charge, but it must be clearly stated that this 00017 // library is used in the application EULA and distribution license 00018 // (for both free and proprietary applications). 00020 00021 #ifndef __VR3SHADERPROGRAM_H__ 00022 #define __VR3SHADERPROGRAM_H__ 00023 00024 // C++0x hash associative map include 00025 #include <unordered_map> 00026 00028 00117 class VR3ShaderProgram { 00119 friend class VR3ShaderManager; 00120 00122 00128 static VR3ShaderProgram* ms_activeprogram; 00129 00131 GLuint m_program; 00132 00134 std::unordered_map<std::string, GLint> m_uniforms; 00135 00137 GLint m_std_uniforms[VR3_NUM_STD_UNIFORMS]; 00138 00140 VR3ShaderProgram(const VR3ShaderProgram&); 00142 VR3ShaderProgram& operator = (const VR3ShaderProgram&); 00143 00144 //------------------------ Source Loading Functions --------------------------// 00145 00147 00148 00150 00157 void GetSource(const char* filename, std::string& filestr); 00158 00160 00171 void SplitShaders(const std::string& shaders, 00172 std::string& vertex, 00173 std::string& geometry, 00174 std::string& fragment); 00175 00177 00178 public: 00179 00180 //----------------------- Constructor and Destructor -------------------------// 00181 00183 00184 00186 00195 VR3ShaderProgram(const char* shader, bool code_in_par); 00196 00198 00208 VR3ShaderProgram(const char* vertex, const char* geometry, 00209 const char* fragment, bool code_in_par); 00210 00212 00213 ~VR3ShaderProgram(); 00214 00216 00217 //------------------ Activation and Deactivation Functions -------------------// 00218 00220 00221 00223 00228 void Start(); 00229 00231 00236 void Stop(); 00237 00239 00240 // ----------------------- Active Program Management -------------------------// 00241 00243 00247 static VR3ShaderProgram* GetActiveProgram() { return ms_activeprogram; } 00248 00249 //------------------------- Uniform Loading Functions ------------------------// 00250 00269 00270 void SendUniform1(const char* varname, GLfloat v0); 00271 void SendUniform2(const char* varname, GLfloat v0, GLfloat v1); 00272 void SendUniform3(const char* varname, GLfloat v0, GLfloat v1, GLfloat v2); 00273 void SendUniform4(const char* varname, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); 00274 00275 void SendUniform1(const char* varname, GLint v0); 00276 void SendUniform2(const char* varname, GLint v0, GLint v1); 00277 void SendUniform3(const char* varname, GLint v0, GLint v1, GLint v2); 00278 void SendUniform4(const char* varname, GLint v0, GLint v1, GLint v2, GLint v3); 00279 00280 void SendUniform1v(const char* varname, GLsizei count, GLfloat *value); 00281 void SendUniform2v(const char* varname, GLsizei count, GLfloat *value); 00282 void SendUniform3v(const char* varname, GLsizei count, GLfloat *value); 00283 void SendUniform4v(const char* varname, GLsizei count, GLfloat *value); 00284 00285 void SendUniform1v(const char* varname, GLsizei count, GLint *value); 00286 void SendUniform2v(const char* varname, GLsizei count, GLint *value); 00287 void SendUniform3v(const char* varname, GLsizei count, GLint *value); 00288 void SendUniform4v(const char* varname, GLsizei count, GLint *value); 00289 00290 void SendUniformMatrix2fv(const char* varname, GLsizei count, 00291 bool transpose, GLfloat* value); 00292 void SendUniformMatrix3fv(const char* varname, GLsizei count, 00293 bool transpose, GLfloat* value); 00294 void SendUniformMatrix4fv(const char* varname, GLsizei count, 00295 bool transpose, GLfloat* value); 00296 00297 void SendUniformTexture(const char* varname, unsigned int unit_id); 00298 00300 00301 //------------------------ Standard Uniform Locations ------------------------// 00302 00304 00305 00307 00313 const GLint* GetStdUniforms() 00314 { return m_std_uniforms; } 00315 00317 }; 00318 00319 #endif
