message: imgproc(cvtColor): temporary disable IPP for 8U GRAY2BGR mode
  Details 12176
diff: #include "precomp.hpp"
  #include "color.hpp"
  +#define IPP_DISABLE_CVTCOLOR_GRAY2BGR_8UC3 1
  +
  namespace cv
  {
  @@ -1228,10 +1230,12 @@ static ippiGeneralFunc ippiRGB2GrayC4Tab[] =
  };
  +#if !IPP_DISABLE_CVTCOLOR_GRAY2BGR_8UC3
  static IppStatus ippiGrayToRGB_C1C3R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize)
  {
  return CV_INSTRUMENT_FUN_IPP(ippiGrayToRGB_8u_C1C3R, pSrc, srcStep, pDst, dstStep, roiSize);
  }
  +#endif
  static IppStatus ippiGrayToRGB_C1C3R(const Ipp16u* pSrc, int srcStep, Ipp16u* pDst, int dstStep, IppiSize roiSize)
  {
  return CV_INSTRUMENT_FUN_IPP(ippiGrayToRGB_16u_C1C3R, pSrc, srcStep, pDst, dstStep, roiSize);
  @@ -1516,7 +1520,11 @@ void cvtGraytoBGR(const uchar * src_data, size_t src_step,
  if(dcn == 3)
  {
  if( depth == CV_8U )
  + {
  +#if !IPP_DISABLE_CVTCOLOR_GRAY2BGR_8UC3
  ippres = CvtColorIPPLoop(src_data, src_step, dst_data, dst_step, width, height, IPPGray2BGRFunctor<Ipp8u>());
  +#endif
  + }
  else if( depth == CV_16U )
  ippres = CvtColorIPPLoop(src_data, src_step, dst_data, dst_step, width, height, IPPGray2BGRFunctor<Ipp16u>());
  else
  