include/VR3ShaderManager.h
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00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 00013 // Copyright (C) 2010 Daniele Giannetti 00014 // 00015 // This file is part of VR3Lib. 00016 // The VR3Lib is free software, but is distributed in the static precompiled 00017 // version as it is NOT open source. The VR3Lib may be used in any virtual 00018 // reality application free of charge, but it must be clearly stated that this 00019 // library is used in the application EULA and distribution license 00020 // (for both free and proprietary applications). 00022 00023 #ifndef __VR3SHADERMANAGER_H__ 00024 #define __VR3SHADERMANAGER_H__ 00025 00026 // STL map class 00027 #include <map> 00028 00030 00035 typedef void (*f_prepareshader) ( GLuint program, std::string& vs, 00036 std::string& gs, std::string& fs, 00037 std::string& es, const std::string*& ss ); 00038 00040 00044 typedef void (*f_uniformloc)(GLuint); 00045 00047 00111 class VR3ShaderManager { 00112 00114 VR3ShaderManager(); 00115 00116 //-------------------- Standard Mesh Rendering Programs ----------------------// 00117 00119 00120 00122 00127 static GLuint ms_std_programs[2][2][2][2]; 00128 00130 00133 static const f_prepareshader ms_std_prepfuncs[2][2][2][2]; 00134 00136 00140 static const f_uniformloc ms_std_unilocfuncs[2][2][2][2]; 00141 00143 struct UniformArray { 00145 GLint uniforms[VR3_NUM_STD_UNIFORMS]; 00146 }; 00147 00149 00156 static std::map< GLuint, UniformArray > ms_std_uniforms; 00157 00159 00165 static std::string ms_occlprob_code; 00166 00168 00169 //--------------------- Background Rendering Programs ------------------------// 00170 00172 00173 00175 00178 static std::map<GLenum, GLuint> ms_bg_programs; 00179 00181 struct BgUniformArray { 00183 GLint uniforms[VR3_NUM_BG_UNIFORMS]; 00184 }; 00185 00187 00193 static std::map< GLuint, BgUniformArray > ms_bg_uniforms; 00194 00196 00197 //---------------------- Shadow Map Rendering Program ------------------------// 00198 00200 00201 00203 00205 static GLuint ms_shad_program; 00206 00208 00213 static GLint ms_shad_uniforms[VR3_NUM_SHAD_UNIFORMS]; 00214 00216 00217 //---------------------------- Blurring Programs -----------------------------// 00218 00220 00221 00223 00227 static GLuint ms_blur_programs[2]; 00228 00230 00235 static GLint ms_blur_uniforms[2][VR3_NUM_BLUR_UNIFORMS]; 00236 00238 00239 //------------------------- Text Rendering Program ---------------------------// 00240 00241 // windows only 00242 #if defined(_WIN32) || defined(_WIN64) 00243 00245 00246 00248 00250 static GLuint ms_text_program; 00251 00253 00258 static GLint ms_text_uniforms[VR3_NUM_TEXT_UNIFORMS]; 00259 00261 00262 #endif 00263 00264 //-------------- Standard Shader Source Manipulation Functions ---------------// 00265 00267 00268 00270 00276 static void RemLinesContaining(const std::string& str, std::string& shad); 00277 00279 00287 static void ReplaceIntToken( const std::string& torep, GLint value, 00288 std::string& shad ); 00289 00291 00299 static void ReplaceAllIntToken( const std::string& torep, GLint value, 00300 std::string& shad ); 00301 00303 00310 static void ReplaceStringToken( const std::string& torep, 00311 const std::string& rep, std::string& shad ); 00312 00314 00322 static void ReplaceAllStringToken( const std::string& torep, 00323 const std::string& rep, std::string& shad ); 00324 00326 00334 static void GenerateOcclusionCode(const std::string*& shad); 00335 00337 00338 //------------------------- Compiling and Linking ----------------------------// 00339 00341 00342 00344 00348 static void LinkProgram(GLuint program); 00349 00351 00359 static void CompileAttach( GLuint program, 00360 const char* source, GLenum type ); 00361 00363 00364 //------------------- Standard Shader Source Preparation ---------------------// 00365 00385 00387 static void PrepareShadersFFFF( GLuint program, std::string& vs, 00388 std::string& gs, std::string& fs, 00389 std::string& es, const std::string*& ss ); 00391 static void PrepareShadersTFFF( GLuint program, std::string& vs, 00392 std::string& gs, std::string& fs, 00393 std::string& es, const std::string*& ss ); 00395 static void PrepareShadersFTFF( GLuint program, std::string& vs, 00396 std::string& gs, std::string& fs, 00397 std::string& es, const std::string*& ss ); 00399 static void PrepareShadersTTFF( GLuint program, std::string& vs, 00400 std::string& gs, std::string& fs, 00401 std::string& es, const std::string*& ss ); 00403 static void PrepareShadersFFTF( GLuint program, std::string& vs, 00404 std::string& gs, std::string& fs, 00405 std::string& es, const std::string*& ss ); 00407 static void PrepareShadersTFTF( GLuint program, std::string& vs, 00408 std::string& gs, std::string& fs, 00409 std::string& es, const std::string*& ss ); 00411 static void PrepareShadersFFTT( GLuint program, std::string& vs, 00412 std::string& gs, std::string& fs, 00413 std::string& es, const std::string*& ss ); 00415 static void PrepareShadersFTFT( GLuint program, std::string& vs, 00416 std::string& gs, std::string& fs, 00417 std::string& es, const std::string*& ss ); 00419 static void PrepareShadersTFTT( GLuint program, std::string& vs, 00420 std::string& gs, std::string& fs, 00421 std::string& es, const std::string*& ss ); 00423 static void PrepareShadersTTFT( GLuint program, std::string& vs, 00424 std::string& gs, std::string& fs, 00425 std::string& es, const std::string*& ss ); 00427 00428 //-------------- Standard Shaders Uniform Location Discovery -----------------// 00429 00440 00442 static void GetUniformLocsFFFF(GLuint program); 00444 static void GetUniformLocsTFFF(GLuint program); 00446 static void GetUniformLocsFTFF(GLuint program); 00448 static void GetUniformLocsTTFF(GLuint program); 00450 static void GetUniformLocsFFTF(GLuint program); 00452 static void GetUniformLocsTFTF(GLuint program); 00454 static void GetUniformLocsFFTT(GLuint program); 00456 static void GetUniformLocsFTFT(GLuint program); 00458 static void GetUniformLocsTFTT(GLuint program); 00460 static void GetUniformLocsTTFT(GLuint program); 00461 00463 00470 static void GetUniformLocsShadowAlgorithm(GLuint program); 00471 00473 00474 public: 00475 00477 00493 static GLuint GetShaderProgram( bool fl_difftex, bool fl_lightmap, 00494 bool fl_normmap, bool fl_dispmap, 00495 const GLint*& unilocs ); 00496 00498 00506 static GLuint GetBgShaderProgram( GLenum textype, const GLint*& unilocs ); 00507 00509 00516 static GLuint GetShadShaderProgram( const GLint*& unilocs ); 00517 00519 00526 static void GetBlurShaderPrograms( GLuint programs[], const GLint* unilocs[] ); 00527 00528 // windows only 00529 #if defined(_WIN32) || defined(_WIN64) 00530 00532 00539 static GLuint GetTextShaderProgram( const GLint*& unilocs ); 00540 00541 #endif // windows only 00542 00544 00555 static void LoadExtShaderProgram( const char* vs, const char* gs, 00556 const char* fs, VR3ShaderProgram* shadprog ); 00557 }; 00558 00559 #endif
