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      1 /*
      2  * Copyright (c) 2009-2010 jMonkeyEngine
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
     15  *
     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 package jme3tools.converters;
     34 
     35 /**
     36  *
     37  * @author Kirill
     38  */
     39 public class RGB565 {
     40 
     41     public static short ARGB8_to_RGB565(int argb){
     42         int a = (argb & 0xFF000000) >> 24;
     43         int r = (argb & 0x00FF0000) >> 16;
     44         int g = (argb & 0x0000FF00) >> 8;
     45         int b = (argb & 0x000000FF);
     46 
     47         r  = r >> 3;
     48         g  = g >> 2;
     49         b  = b >> 3;
     50 
     51         return (short) (b | (g << 5) | (r << (5 + 6)));
     52     }
     53 
     54     public static int RGB565_to_ARGB8(short rgb565){
     55         int a = 0xff;
     56         int r = (rgb565 & 0xf800) >> 11;
     57         int g = (rgb565 & 0x07e0) >> 5;
     58         int b = (rgb565 & 0x001f);
     59 
     60         r  = r << 3;
     61         g  = g << 2;
     62         b  = b << 3;
     63 
     64         return (a << 24) | (r << 16) | (g << 8) | (b);
     65     }
     66 
     67 
     68 
     69 }
     70