1 #if !defined(PGOPENGL_H) 2 #define PGOPENGL_H 3 4 /** This header includes definitions of Opengl functions as pointer types for 5 ** use with the SDL function SDL_GL_GetProcAddress. 6 **/ 7 8 #if defined(_WIN32) 9 #define GL_APIENTRY __stdcall 10 #else 11 #define GL_APIENTRY 12 #endif 13 14 typedef void (GL_APIENTRY *GL_glReadPixels_Func)(int, int, int, int, unsigned int, unsigned int, void*); 15 16 typedef void (GL_APIENTRY *GL_glViewport_Func)(int, int, unsigned int, unsigned int); 17 #endif 18 19