c# BitmapData implementation in android -

i developing oil painting application.i got following c# code.

   public static bitmap oilpaintfilter(this bitmap sourcebitmap,                                     int levels,                                     int filtersize)   {     bitmapdata sourcedata =             sourcebitmap.lockbits(new rectangle(0, 0,             sourcebitmap.width, sourcebitmap.height),             imagelockmode.readonly,             pixelformat.format32bppargb);    byte[] pixelbuffer = new byte[sourcedata.stride *                                sourcedata.height];    byte[] resultbuffer = new byte[sourcedata.stride *                                 sourcedata.height];    marshal.copy(sourcedata.scan0, pixelbuffer, 0,                             pixelbuffer.length);    sourcebitmap.unlockbits(sourcedata);    int[] intensitybin = new int [levels];  int[] bluebin = new int [levels];  int[] greenbin = new int [levels];  int[] redbin = new int [levels];    levels = levels - 1;    int filteroffset = (filtersize - 1) / 2;  int byteoffset = 0;  int calcoffset = 0;  int currentintensity = 0;  int maxintensity = 0;  int maxindex = 0;    double blue = 0;  double green = 0;  double red = 0;    (int offsety = filteroffset; offsety <      sourcebitmap.height - filteroffset; offsety++)  {     (int offsetx = filteroffset; offsetx <          sourcebitmap.width - filteroffset; offsetx++)      {         blue = green = red = 0;            currentintensity = maxintensity = maxindex = 0;            intensitybin = new int[levels + 1];          bluebin = new int[levels + 1];          greenbin = new int[levels + 1];          redbin = new int[levels + 1];            byteoffset = offsety *          sourcedata.stride + offsetx * 4;            (int filtery = -filteroffset;              filtery <= filteroffset; filtery++)          {             (int filterx = -filteroffset;                  filterx <= filteroffset; filterx++)              {                 calcoffset = byteoffset +                               (filterx * 4) +                               (filtery * sourcedata.stride);                    currentintensity = (int )math.round(((double)                             (pixelbuffer[calcoffset] +                             pixelbuffer[calcoffset + 1] +                             pixelbuffer[calcoffset + 2]) / 3.0 *                             (levels)) / 255.0);                    intensitybin[currentintensity] += 1;                  bluebin[currentintensity] += pixelbuffer[calcoffset];                  greenbin[currentintensity] += pixelbuffer[calcoffset + 1];                  redbin[currentintensity] += pixelbuffer[calcoffset + 2];                   if (intensitybin[currentintensity] > maxintensity)                  {                     maxintensity = intensitybin[currentintensity];                      maxindex = currentintensity;                  }             }         }           blue = bluebin[maxindex] / maxintensity;          green = greenbin[maxindex] / maxintensity;          red = redbin[maxindex] / maxintensity;            resultbuffer[byteoffset] = clipbyte(blue);          resultbuffer[byteoffset + 1] = clipbyte(green);          resultbuffer[byteoffset + 2] = clipbyte(red);          resultbuffer[byteoffset + 3] = 255;       } }   bitmap resultbitmap = new bitmap(sourcebitmap.width,                                   sourcebitmap.height);    bitmapdata resultdata =             resultbitmap.lockbits(new rectangle(0, 0,             resultbitmap.width, resultbitmap.height),             imagelockmode.writeonly,             pixelformat.format32bppargb);    marshal.copy(resultbuffer, 0, resultdata.scan0,                             resultbuffer.length);    resultbitmap.unlockbits(resultdata);      return resultbitmap;  } 

in above code need implement " bitmapdata " in android no equivalent method in android.i have changed sample methods stride , height , length.

thanks in advance...