static void gfx_ctx_clearfb(void){
        eglMakeCurrent( NULL, g_dpy_surf, g_dpy_surf, g_dpy_ctx);

        char *pixels;
        char *mapped_mem;
        struct fb_fix_screeninfo finfo;
        int mapped_memlen;
        int mapped_offset;

        ioctl(fb, FBIOGET_FSCREENINFO, &finfo);

        mapped_offset = (((long)finfo.smem_start) -
                        (((long)finfo.smem_start)&~(getpagesize()-1)));
        mapped_memlen = finfo.smem_len+mapped_offset;

        mapped_mem = mmap(NULL, mapped_memlen,
                          PROT_READ|PROT_WRITE, MAP_SHARED, fb, 0);
        pixels = mapped_mem+mapped_offset;

        char *rowp = (char *)pixels;

        //TODO: fix to actual bytes per pixel (assumes 4Bpp = 32bpp)
        memset(pixels,0,native_window.height * native_window.width * 4);

        close (fb);
        //glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        //eglSwapBuffers(g_egl_dpy, g_egl_surf);
}