/*
winnie - an experimental window system

Copyright (C) 2013 Eleni Maria Stea

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Author: Eleni Maria Stea <elene.mst@gmail.com>
*/

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

#include <errno.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/time.h>

#include "sdl/gfx.h"
#include "sdl/keyboard.h"
#include "sdl/mouse.h"
#include "winnie.h"

bool
winnie_init()
{
  if (!init_gfx()) {
    return false;
  }

  if (!init_window_manager()) {
    return false;
  }

  if (!init_keyboard()) {
    return false;
  }

  if (!init_mouse()) {
    return false;
  }

  if (!init_text()) {
    return false;
  }

  wm->invalidate_region(get_screen_size());
  return true;
}

void
winnie_shutdown()
{
  destroy_gfx();
  destroy_keyboard();
  destroy_mouse();
  destroy_text();
  destroy_window_manager();
}

long
winnie_get_time()
{
  static struct timeval init_tv;
  struct timeval tv;

  gettimeofday(&tv, 0);

  if (!tv.tv_sec && !tv.tv_usec) {
    init_tv = tv;
    return 0;
  }

  return (tv.tv_usec - init_tv.tv_usec) / 1000
         + (tv.tv_sec - init_tv.tv_sec) * 1000;
}