bitmover2p.java

来自「Mapserver的一个java客户端,包含两个applet支持地图显示。」· Java 代码 · 共 25 行

// Copyright (C) 1998, 1999, 2001 Chris Nokleberg
// Please see included LICENSE.TXT

package com.sixlegs.image.png;

import java.io.IOException;
import java.io.InputStream;

final class BitMover2P
extends BitMover
{
    int fill(int[] pixels, InputStream str, int off, int len)
    throws IOException
    {
        for (int n = 0; n < len; n++) {
            int x = str.read();
            pixels[off++] = x >>> 6 & 0x03;
            pixels[off++] = x >>> 4 & 0x03;
            pixels[off++] = x >>> 2 & 0x03;
            pixels[off++] = x & 0x03;
        }
        return off;
    }
}