1EGL_NOK_swap_region
2https://www.khronos.org/registry/egl/specs/eglspec.1.5.pdf
3EGL_NOK_swap_region
4
5	EGLBoolean  eglSwapBuffersRegionNOK (EGLDisplay  dpy, EGLSurface  surface, EGLint  numRects, const EGLint * rects)
6