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

	GLX_SYNC_FRAME_SGIX 0x00000000
	GLX_SYNC_SWAP_SGIX 0x00000001
	int glXBindChannelToWindowSGIX (Display* display, int screen, int channel, Window window)
	int glXChannelRectSGIX (Display* display, int screen, int channel, int x, int y, int w, int h)
	int glXChannelRectSyncSGIX (Display* display, int screen, int channel, GLenum synctype)
	int glXQueryChannelDeltasSGIX (Display* display, int screen, int channel, int* x, int* y, int* w, int* h)
	int glXQueryChannelRectSGIX (Display* display, int screen, int channel, int* dx, int* dy, int* dw, int* dh)