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

	GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK 0x04000000
	GLX_EXCHANGE_COMPLETE_INTEL 0x8180
	GLX_COPY_COMPLETE_INTEL 0x8181
	GLX_FLIP_COMPLETE_INTEL 0x8182
