/**** Backwards compatibility for old tesselator ****/ //定义一个非凸多边形 void APIENTRY gluBeginPolygon( GLUtesselator *tess ); //为其他轮廓的开始做标记 void APIENTRY gluNextContour( GLUtesselator *tess, GLenum type ); //定义一个非凸多边形 void APIENTRY gluEndPolygon( GLUtesselator *tess );
/**** Callback function prototypes ****/ /* gluQuadricCallback */ typedef void (CALLBACK* GLUquadricErrorProc) (GLenum); /* gluTessCallback */ typedef void (CALLBACK* GLUtessBeginProc) (GLenum); typedef void (CALLBACK* GLUtessEdgeFlagProc) (GLboolean); typedef void (CALLBACK* GLUtessVertexProc) (void *); typedef void (CALLBACK* GLUtessEndProc) (void); typedef void (CALLBACK* GLUtessErrorProc) (GLenum); typedef void (CALLBACK* GLUtessCombineProc) (GLdouble[3], void*[4], GLfloat[4], void** ); typedef void (CALLBACK* GLUtessBeginDataProc) (GLenum, void *); typedef void (CALLBACK* GLUtessEdgeFlagDataProc) (GLboolean, void *); typedef void (CALLBACK* GLUtessVertexDataProc) (void *, void *); typedef void (CALLBACK* GLUtessEndDataProc) (void *); typedef void (CALLBACK* GLUtessErrorDataProc) (GLenum, void *); typedef void (CALLBACK* GLUtessCombineDataProc) (GLdouble[3], void*[4], GLfloat[4], void**, void* );
