GLX_OML_sync_control http://www.opengl.org/registry/specs/OML/glx_sync_control.txt GLX_OML_sync_control Bool glXGetMscRateOML (Display* dpy, GLXDrawable drawable, int32_t* numerator, int32_t* denominator) Bool glXGetSyncValuesOML (Display* dpy, GLXDrawable drawable, int64_t* ust, int64_t* msc, int64_t* sbc) int64_t glXSwapBuffersMscOML (Display* dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder) Bool glXWaitForMscOML (Display* dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t* ust, int64_t* msc, int64_t* sbc) Bool glXWaitForSbcOML (Display* dpy, GLXDrawable drawable, int64_t target_sbc, int64_t* ust, int64_t* msc, int64_t* sbc)