static void initBuf()

in java/TJUnitTest.java [167:234]
66 lines of code
22 McCabe index (conditional complexity)

  static void initBuf(Object buf, int w, int pitch, int h, int pf,
                      boolean bottomUp) throws Exception {
    int roffset = TJ.getRedOffset(pf);
    int goffset = TJ.getGreenOffset(pf);
    int boffset = TJ.getBlueOffset(pf);
    int aoffset = TJ.getAlphaOffset(pf);
    int ps = TJ.getPixelSize(pf);
    int index, row, col, halfway = 16;

    if (pf == TJ.PF_GRAY) {
      fillArray(buf, 0);
      for (row = 0; row < h; row++) {
        for (col = 0; col < w; col++) {
          if (bottomUp)
            index = pitch * (h - row - 1) + col;
          else
            index = pitch * row + col;
          if (((row / 8) + (col / 8)) % 2 == 0)
            setVal(buf, index, (row < halfway) ? maxSample : 0);
          else
            setVal(buf, index, (row < halfway) ? redToY : yellowToY);
        }
      }
      return;
    }
    if (pf == TJ.PF_CMYK) {
      fillArray(buf, maxSample);
      for (row = 0; row < h; row++) {
        for (col = 0; col < w; col++) {
          if (bottomUp)
            index = (h - row - 1) * w + col;
          else
            index = row * w + col;
          if (((row / 8) + (col / 8)) % 2 == 0) {
            if (row >= halfway) setVal(buf, index * ps + 3, 0);
          } else {
            setVal(buf, index * ps + 2, 0);
            if (row < halfway)
              setVal(buf, index * ps + 1, 0);
          }
        }
      }
      return;
    }

    fillArray(buf, 0);
    for (row = 0; row < h; row++) {
      for (col = 0; col < w; col++) {
        if (bottomUp)
          index = pitch * (h - row - 1) + col * ps;
        else
          index = pitch * row + col * ps;
        if (((row / 8) + (col / 8)) % 2 == 0) {
          if (row < halfway) {
            setVal(buf, index + roffset, maxSample);
            setVal(buf, index + goffset, maxSample);
            setVal(buf, index + boffset, maxSample);
          }
        } else {
          setVal(buf, index + roffset, maxSample);
          if (row >= halfway)
            setVal(buf, index + goffset, maxSample);
        }
        if (aoffset >= 0)
          setVal(buf, index + aoffset, maxSample);
      }
    }
  }