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

	EGL_IMPORT_SYNC_TYPE_EXT 0x3470
	EGL_IMPORT_IMPLICIT_SYNC_EXT 0x3471
	EGL_IMPORT_EXPLICIT_SYNC_EXT 0x3472