Question

我正在Mac上开发C ++应用程序并使用CGL初始化OpenGL：

EGL_CONTEXT EglWrapperMac::CreateContext() {
    EGL_CONTEXT context;
    if (kCGLNoError != CGLCreateContext(m_display, NULL, &context)) {
        throw EXT_EXCEPTION(EGL_WRAPPER_ERROR_CREATE_CTX);
    }
    return context;
}

我也使用Cmake生成XCode解决方案。遗憾的是，由于缺少必需的库，构建失败。我在cmake中尝试以下语句： set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework CGL -framework OpenGL") 和set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -lCGL -lOpenGL")没有运气。

更新：以下是编译错误：

Undefined symbols for architecture x86_64:

  "_CGLChoosePixelFormat", referenced from:
      EglWrapperMac::EglWrapperMac(EglSetup const&, std::__1::shared_ptr<IEngineWindow>) in libVEngineRenderer.a(EglWrapper.o)
  "_CGLCreateContext", referenced from:
      EglWrapperMac::CreateContext() in libVEngineRenderer.a(EglWrapper.o)
  "_CGLDestroyPixelFormat", referenced from:
      EglWrapperMac::~EglWrapperMac() in libVEngineRenderer.a(EglWrapper.o)
  "_CGLFlushDrawable", referenced from:
      EglWrapperMac::Present() in libVEngineRenderer.a(EglWrapper.o)
  "_CGLGetCurrentContext", referenced from:
      EglWrapperMac::GetCurrentContext() in libVEngineRenderer.a(EglWrapper.o)
  "_CGLReleaseContext", referenced from:
      EglWrapperMac::DeleteContext(_CGLContextObject*) in libVEngineRenderer.a(EglWrapper.o)
  "_CGLSetCurrentContext", referenced from:
      EglWrapperMac::MakeCurrent(_CGLContextObject*) in libVEngineRenderer.a(EglWrapper.o)

我该如何处理？

Answer 1

感谢您的帮助。我能够通过cmake中的以下代码解决问题：

include_directories ( /System/Library/Frameworks )
find_library(OpenGL_LIBRARY OpenGL )
set(EXTRA_LIBS ${OpenGL_LIBRARY})

//add_library (VEngineRenderer STATIC ${RENDER_FILES})

target_link_libraries(VEngineRenderer ${EXTRA_LIBS})

使用CGL编译MacOS应用程序

1 个答案: