static void initBuf()

in tjunittest.c [122:175]

• 53 lines of code
• 22 McCabe index (conditional complexity)

static void initBuf(void *buf, int w, int h, int pf, int bottomUp)
{
  int roffset = tjRedOffset[pf];
  int goffset = tjGreenOffset[pf];
  int boffset = tjBlueOffset[pf];
  int ps = tjPixelSize[pf];
  int i, index, row, col, halfway = 16;

  if (pf == TJPF_GRAY) {
    memset(buf, 0, w * h * ps * sampleSize);
    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)
          setVal(buf, index, (row < halfway) ? maxSample : 0);
        else setVal(buf, index, (row < halfway) ? redToY : yellowToY);
      }
    }
  } else if (pf == TJPF_CMYK) {
    for (i = 0; i < w * h * ps; i++)
      setVal(buf, i, 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);
        }
      }
    }
  } else {
    memset(buf, 0, w * h * ps * sampleSize);
    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 + roffset, maxSample);
            setVal(buf, index * ps + goffset, maxSample);
            setVal(buf, index * ps + boffset, maxSample);
          }
        } else {
          setVal(buf, index * ps + roffset, maxSample);
          if (row >= halfway) setVal(buf, index * ps + goffset, maxSample);
        }
      }
    }
  }
}