Android Open Source - Earthbound-Battle-Backgrounds Sizeof

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From Project

Back to project page Earthbound-Battle-Backgrounds.

License

The source code is released under:

MIT License

Java Source Code

/*
 *  Copyright 2011 Garen J. Torikian//from ww  w .  j  a v a2s.c  o  m
 * 
 *  This file is part of EarthboundBattleBackground.

    EarthboundBattleBackground 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.

    EarthboundBattleBackground 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 EarthboundBattleBackground.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.miadzin.livewallpaper.earthbound.romlib;

import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class Sizeof {

  private static final int SZ_REF = 4;

  public static short convertToSignedShort(byte value) {
    return (short) (value & 0xFF);
  }

  public static int sizeof(boolean b) {
    return 1;
  }

  public static int sizeof(byte b) {
    return 1;
  }

  public static int sizeof(char c) {
    return 2;
  }

  public static int sizeof(short s) {
    return 2;
  }

  public static int sizeof(int i) {
    return 4;
  }

  public static int sizeof(long l) {
    return 8;
  }

  public static int sizeof(float f) {
    return 4;
  }

  public static int sizeof(double d) {
    return 8;
  }

  private static int size_inst(Class c) {
    Field flds[] = c.getDeclaredFields();
    int sz = 0;

    for (int i = 0; i < flds.length; i++) {
      Field f = flds[i];
      if (!c.isInterface() && (f.getModifiers() & Modifier.STATIC) != 0)
        continue;
      sz += size_prim(f.getType());
    }

    if (c.getSuperclass() != null)
      sz += size_inst(c.getSuperclass());

    Class cv[] = c.getInterfaces();
    for (int i = 0; i < cv.length; i++)
      sz += size_inst(cv[i]);

    return sz;
  }

  private static int size_prim(Class t) {
    if (t == Boolean.TYPE)
      return 1;
    else if (t == Byte.TYPE)
      return 1;
    else if (t == Character.TYPE)
      return 2;
    else if (t == Short.TYPE)
      return 2;
    else if (t == Integer.TYPE)
      return 4;
    else if (t == Long.TYPE)
      return 8;
    else if (t == Float.TYPE)
      return 4;
    else if (t == Double.TYPE)
      return 8;
    else if (t == Void.TYPE)
      return 0;
    else
      return SZ_REF;
  }

  private static int size_arr(Object obj, Class c) {
    Class ct = c.getComponentType();
    int len = Array.getLength(obj);

    if (ct.isPrimitive()) {
      return len * size_prim(ct);
    } else {
      int sz = 0;
      for (int i = 0; i < len; i++) {
        sz += SZ_REF;
        Object obj2 = Array.get(obj, i);
        if (obj2 == null)
          continue;
        Class c2 = obj2.getClass();
        if (!c2.isArray())
          continue;
        sz += size_arr(obj2, c2);
      }
      return sz;
    }
  }

  public static int sizeof(Object obj) {
    if (obj == null)
      return 0;

    Class c = obj.getClass();

    if (c.isArray())
      return size_arr(obj, c);
    else
      return size_inst(c);
  }
}

Java Source Code List

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