SDL2 및 SDL_opengl_glext.h 정의되지 않은 외부

Question

내 SDL2 프로젝트에서 gl3w에서 벗어나려고 할 때 여러 가지 문제가 발생합니다. 내가 gl3w의 "glAlphaFunc"를 포함하지 않고 SDL_opengl_glext.h를 포함하고 있다는 것을 알았 기 때문에 나는 이것을 고려하고있다.

#define GL_GLEXT_PROTOTYPES 
#define GLX_GLEXT_PROTOTYPES 

그래서 SDL_opengl_glext.h은 내가 iOS에서처럼 단순히 SDL_opengl.h 및 SDL_opengl_glext.h를 (포함 할 수 어쩌면 생각이 존재 발견 후 : SDL_opengl

내가 다음과 같은 정의 할 필요가 보인다 .h 및 SDL_opengles.h)하지만 이제는 정의되지 않은 외부와 관련된 문제가 발생합니다.

lib 디렉토리 파일 나는 현재 참조하고있어

:; glu32.lib, SDL2.lib, SDL2main.lib, SDL2test.lib, SDL2_image.lib, SDL2_ttf.lib, SDL2_mixer.lib,

opengl32.lib libboost_filesystem -vc140-MT-1_58.lib, libboost_system-vc140-MT-1_58.lib, libpq.lib, ssleay32.lib, libeay32.lib; % (AdditionalDependencies)

내 질문은 : SDL2으로 나는 다른 링크 할 수 있습니다 lib 파일을 수정하여 SDL_opengl_glext.h를 올바르게 사용하려면 어떻게해야합니까? 특히이 문제에 대한 명확한 문서는 없습니다. 분출

오류 :

1>emitter.obj : error LNK2019: unresolved external symbol __imp_glBindBuffer referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glBindBuffer 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glBindBuffer 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glGenBuffers referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glGenBuffers 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glGenBuffers 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glBufferData referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glBufferData 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glBufferData 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glDisableVertexAttribArray referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glDisableVertexAttribArray 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glDisableVertexAttribArray 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glEnableVertexAttribArray referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glEnableVertexAttribArray 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glEnableVertexAttribArray 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glUseProgram referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glUseProgram 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glUseProgram 
1>emitter.obj : error LNK2019: unresolved external symbol __imp_glVertexAttribPointer referenced in function "protected: virtual void __cdecl MV::Scene::Emitter::defaultDrawImplementation(void)" (?defaultDrawImplementation@Emitter@Scene@MV@@MEAAXXZ) 
1>drawable.obj : error LNK2001: unresolved external symbol __imp_glVertexAttribPointer 
1>spineMV.obj : error LNK2001: unresolved external symbol __imp_glVertexAttribPointer 
1>render.obj : error LNK2019: unresolved external symbol __imp_glActiveTexture referenced in function "public: void __cdecl MV::Shader::set(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::shared_ptr<class MV::TextureDefinition> const &,unsigned int)" (?set@Shader@MV@@QEAAXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBV?$shared_ptr@VTextureDefinition@MV@@@4@I@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glBlendFuncSeparate referenced in function "public: void __cdecl MV::Draw2D::defaultBlendFunction(void)" (?defaultBlendFunction@Draw2D@MV@@QEAAXXZ) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glBlendEquationSeparate referenced in function "public: void __cdecl MV::glExtensionBlendMode::setBlendEquation(unsigned int,unsigned int)" (?setBlendEquation@glExtensionBlendMode@MV@@QEAAXII@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glAttachShader referenced in function "public: class MV::Shader * __cdecl MV::Draw2D::loadShaderCode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadShaderCode@Draw2D@MV@@QEAAPEAVShader@2@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@00@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glCompileShader referenced in function "private: void __cdecl MV::Draw2D::loadPartOfShader(unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadPartOfShader@Draw2D@MV@@AEAAXIAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glCreateProgram referenced in function "public: class MV::Shader * __cdecl MV::Draw2D::loadShaderCode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadShaderCode@Draw2D@MV@@QEAAPEAVShader@2@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@00@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glCreateShader referenced in function "public: class MV::Shader * __cdecl MV::Draw2D::loadShaderCode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadShaderCode@Draw2D@MV@@QEAAPEAVShader@2@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@00@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGetActiveUniform referenced in function "public: __cdecl MV::Shader::Shader(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,unsigned int,bool)" (??0Shader@MV@@QEAA@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGetProgramiv referenced in function "public: __cdecl MV::Shader::Shader(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,unsigned int,bool)" (??0Shader@MV@@QEAA@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGetShaderiv referenced in function "private: void __cdecl MV::Draw2D::validateShaderStatus(unsigned int,bool)" (?validateShaderStatus@Draw2D@MV@@AEAAXI_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGetShaderInfoLog referenced in function "private: void __cdecl MV::Draw2D::validateShaderStatus(unsigned int,bool)" (?validateShaderStatus@Draw2D@MV@@AEAAXI_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGetUniformLocation referenced in function "public: __cdecl MV::Shader::Shader(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,unsigned int,bool)" (??0Shader@MV@@QEAA@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glIsProgram referenced in function "public: __cdecl MV::Shader::Shader(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,unsigned int,bool)" (??0Shader@MV@@QEAA@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glLinkProgram referenced in function "public: class MV::Shader * __cdecl MV::Draw2D::loadShaderCode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadShaderCode@Draw2D@MV@@QEAAPEAVShader@2@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@00@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glShaderSource referenced in function "private: void __cdecl MV::Draw2D::loadPartOfShader(unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?loadPartOfShader@Draw2D@MV@@AEAAXIAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glUniform1i referenced in function "public: void __cdecl MV::Shader::set(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::shared_ptr<class MV::TextureDefinition> const &,unsigned int)" (?set@Shader@MV@@QEAAXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBV?$shared_ptr@VTextureDefinition@MV@@@4@I@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glUniform1fv referenced in function "public: void __cdecl MV::Shader::set(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,float)" (?set@Shader@MV@@QEAAXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@M@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glUniformMatrix4fv referenced in function "public: void __cdecl MV::Shader::set(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class MV::TransformMatrix const &)" (?set@Shader@MV@@QEAAXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBVTransformMatrix@2@@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glBindRenderbuffer referenced in function "public: void __cdecl MV::glExtensionFramebufferObject::startUsingFramebuffer(class std::weak_ptr<class MV::Framebuffer>,bool)" (?startUsingFramebuffer@glExtensionFramebufferObject@MV@@QEAAXV?$weak_ptr@VFramebuffer@MV@@@std@@_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glDeleteRenderbuffers referenced in function "public: __cdecl MV::Framebuffer::~Framebuffer(void)" (??1Framebuffer@MV@@QEAA@XZ) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGenRenderbuffers referenced in function "public: class std::shared_ptr<class MV::Framebuffer> __cdecl MV::glExtensionFramebufferObject::makeFramebuffer(class MV::Point<int> const &,class MV::Size<int> const &,unsigned int,class MV::Color const &)" (?makeFramebuffer@glExtensionFramebufferObject@MV@@QEAA?AV?$shared_ptr@VFramebuffer@MV@@@std@@AEBV?$Point@H@2@AEBV?$Size@H@2@IAEBVColor@2@@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glRenderbufferStorage referenced in function "public: void __cdecl MV::glExtensionFramebufferObject::startUsingFramebuffer(class std::weak_ptr<class MV::Framebuffer>,bool)" (?startUsingFramebuffer@glExtensionFramebufferObject@MV@@QEAAXV?$weak_ptr@VFramebuffer@MV@@@std@@_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glBindFramebuffer referenced in function "public: void __cdecl MV::glExtensionFramebufferObject::startUsingFramebuffer(class std::weak_ptr<class MV::Framebuffer>,bool)" (?startUsingFramebuffer@glExtensionFramebufferObject@MV@@QEAAXV?$weak_ptr@VFramebuffer@MV@@@std@@_N@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glDeleteFramebuffers referenced in function "public: __cdecl MV::Framebuffer::~Framebuffer(void)" (??1Framebuffer@MV@@QEAA@XZ) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glGenFramebuffers referenced in function "public: class std::shared_ptr<class MV::Framebuffer> __cdecl MV::glExtensionFramebufferObject::makeFramebuffer(class MV::Point<int> const &,class MV::Size<int> const &,unsigned int,class MV::Color const &)" (?makeFramebuffer@glExtensionFramebufferObject@MV@@QEAA?AV?$shared_ptr@VFramebuffer@MV@@@std@@AEBV?$Point@H@2@AEBV?$Size@H@2@IAEBVColor@2@@Z) 
1>render.obj : error LNK2019: unresolved external symbol __imp_glFramebufferTexture2D referenced in function "public: void __cdecl MV::glExtensionFramebufferObject::startUsingFramebuffer(class std::weak_ptr<class MV::Framebuffer>,bool)" (?startUsingFramebuffer@glExtensionFramebufferObject@MV@@QEAAXV?$weak_ptr@VFramebuffer@MV@@@std@@_N@Z) 
1>C:\git\MoonDog\x64\Release\M2tMLibrary.exe : fatal error LNK1120: 33 unresolved externals 

Answer 1

OpenGL 확장을 사용하는 방법이 아닙니다. 런타임에 확장 기능을 SDL_GL_GetProcAddress으로로드하거나 기존 opengl loaders 중 하나를 사용해야합니다.

이 함수가 필요한 경우에는 프로토 타입을 직접 정의하거나 런타임에로드 할 수 있습니다. 더 새로운 GL vesions은 AlphaFunc (GL3w는 GL 3 이상을 목표로하는 이유입니다)이 사용되지 않으므로이 버전을 타겟팅하면 사용할 수 없습니다.

Answer 2

What is an undefined reference/unresolved external symbol error and how do I fix it?

당신은 그런 SDL2.lib 다른 SDL 라이브러리에 다음 SDL2main.lib 에 연결해야합니다.

컴파일러와 올바른 아키텍처로 괜찮은 바이너리로 연결되어 있는지 확인하십시오.

그렇지 않은 경우 SDL을 직접 컴파일하십시오.