EGL_NV_post_sub_buffer
https://www.khronos.org/registry/egl/specs/eglspec.1.5.pdf
EGL_NV_post_sub_buffer

	EGL_POST_SUB_BUFFER_SUPPORTED_NV 0x30BE
	EGLBoolean eglPostSubBufferNV (EGLDisplay dpy, EGLSurface surface, EGLint x, EGLint y, EGLint width, EGLint height)