Java应用程序中加载位图文件的逐步向导

(int)brgb[nindex]&0xff;
   // System.out.println("Encoded Color at ("
       +i+","+j+")is:"+nrgb+" (R,G,B)= ("
       +((int)(brgb[2]) & 0xff)+","
       +((int)brgb[1]&0xff)+","
       +((int)brgb[0]&0xff)+")");
   nindex += 3;
   }
      nindex += npad;
      }

  image = createImage
      ( new MemoryImageSource (nwidth, nheight,
          ndata, 0, nwidth));
  }
     else if (nbitcount == 8)
  {
  // 必须确定颜色数。如果 clrsused 参数大于 0，
  // 则颜色数由它决定。如果它等于 0，则根据
  // bitsperpixel 计算颜色数。
  int nNumColors = 0;
  if (nclrused > 0)
      {
      nNumColors = nclrused;
      }
  else
      {
      nNumColors = (1&0xff)<<nbitcount;
      }
  System.out.println("The number of Colors is"+nNumColors);

  // 某些位图不计算 sizeimage 域，请找出
  // 这些情况并对它们进行修正。
  if (nsizeimage == 0)
      {
      nsizeimage = ((((nwidth*nbitcount)+31) & ~31 ) >> 3);
      nsizeimage *= nheight;
      System.out.println("nsizeimage (backup) is"+nsizeimage);
      }

  // 读取调色板颜色。
  int npalette[] = new int [nNumColors];
  byte bpalette[] = new byte [nNumColors*4];
  fs.read (bpalette, 0, nNumColors*4);
  int nindex8 = 0;
  for (int n = 0; n < nNumColors; n++)
      {
      npalette[n] = (255&0xff)<<24
   

关键词：Java应用程序中加载位图文件的逐步向导