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Posts Tagged ‘EGL’

Definition:

EGL is an interface between Khronos rendering APIs such as OpenGL ES or OpenVG and the underlying native platform window system.

It mainly handles the following tasks in Graphics System:

  • Graphics context management
  • surface/buffer binding
  • rendering synchronization
  • enabling “high performance, accelerated, mixed-mode 2D and 3D rendering using Khronos APIs”

EGL replaces GLX/AGL/WGL with a platform independent implementation.

Procedures to use EGL to render:

  1. Get EGLDisplay Object
  2. Initialize the connection with EGLDisplay Object
  3. Get EGLConfig Object
  4. Create EGLContext instance
  5. Create EGLSurface instance
  6. Connect EGLContext and EGLSurface
  7. Use GL command to render
  8. Disconnect and release EGLSurface connected with EGLContext
  9. Delete EGLSurface
  10. Delete EGLContext
  11. Disconnect EGLDisplay
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