What is EGL And How Can I Use It

Question

Can Anybody explain me what is EGL and what it does?

How can i use EGL with OpenGL-ES On Linux?

Is EGL a Layer Between Hardware And Operating System?

Answer 1

EGL is a window system-independent equivalent to the GLX and WGL APIs, which respectively enable OpenGL support in X and Microsoft Windows. It is an interface between Khronos rendering APIs such as OpenGL ES or OpenVG and the underlying native platform window system. It handles graphics context management, surface/buffer binding, and rendering synchronization and enables high-performance, accelerated, mixed-mode 2D and 3D rendering using other Khronos APIs.

There is an implementation for Mesa called EGL and covered in the Mesa EGL Wiki. Realistically you can't use XEGL / EGL,

If you're running on Linux and don't need X then look at Wayland which is a replacement server built on top of MESA.