public boolean swapBuffers ( ) { boolean result = false ; synchronized ( NativeScreen . framebufferSwapLock ) { result = egl . eglSwapBuffers ( eglDisplay , eglSurface ) ; // TODO this shouldn't happen. In case the surface is invalid, we need to have recreated it before this method is called if ( ! result ) { createSurface ( ) ; result = egl . eglSwapBuffers ( eglDisplay , eglSurface ) ; } } return result ; }
Copy the contents of the GL backbuffer to the screen