Does displaying of Android 2D Graphics use EGL library?

I would like to ask if Android always uses the EGL library for rendering 2D Graphics? Or it is using other libraries? I have noticed in the DisplayHardware.cpp and FramebufferNativeWindow.cpp that egl functions are always called when posting buffe开发者_开发技巧r etc.

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Check out this vid Learn about Android Graphics !

At 6:30 the graphics architecture is exdplained. I recommend watching the whole thing tough. Lots of useful information.