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      1 /*M///////////////////////////////////////////////////////////////////////////////////////
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     41 //M*/
     42 
     43 // this file does not contain any used code.
     44 
     45 #ifndef _ncv_color_conversion_hpp_
     46 #define _ncv_color_conversion_hpp_
     47 
     48 #include "NCVPixelOperations.hpp"
     49 
     50 #if 0
     51 enum NCVColorSpace
     52 {
     53     NCVColorSpaceGray,
     54     NCVColorSpaceRGBA,
     55 };
     56 
     57 template<NCVColorSpace CSin, NCVColorSpace CSout, typename Tin, typename Tout> struct __pixColorConv {
     58 static void _pixColorConv(const Tin &pixIn, Tout &pixOut);
     59 };
     60 
     61 template<typename Tin, typename Tout> struct __pixColorConv<NCVColorSpaceRGBA, NCVColorSpaceGray, Tin, Tout> {
     62 static void _pixColorConv(const Tin &pixIn, Tout &pixOut)
     63 {
     64     Ncv32f luma = 0.299f * pixIn.x + 0.587f * pixIn.y + 0.114f * pixIn.z;
     65     _TDemoteClampNN(luma, pixOut.x);
     66 }};
     67 
     68 template<typename Tin, typename Tout> struct __pixColorConv<NCVColorSpaceGray, NCVColorSpaceRGBA, Tin, Tout> {
     69 static void _pixColorConv(const Tin &pixIn, Tout &pixOut)
     70 {
     71     _TDemoteClampNN(pixIn.x, pixOut.x);
     72     _TDemoteClampNN(pixIn.x, pixOut.y);
     73     _TDemoteClampNN(pixIn.x, pixOut.z);
     74     pixOut.w = 0;
     75 }};
     76 
     77 template<NCVColorSpace CSin, NCVColorSpace CSout, typename Tin, typename Tout>
     78 static NCVStatus _ncvColorConv_host(const NCVMatrix<Tin> &h_imgIn,
     79                              const NCVMatrix<Tout> &h_imgOut)
     80 {
     81     ncvAssertReturn(h_imgIn.size() == h_imgOut.size(), NCV_DIMENSIONS_INVALID);
     82     ncvAssertReturn(h_imgIn.memType() == h_imgOut.memType() &&
     83                     (h_imgIn.memType() == NCVMemoryTypeHostPinned || h_imgIn.memType() == NCVMemoryTypeNone), NCV_MEM_RESIDENCE_ERROR);
     84     NCV_SET_SKIP_COND(h_imgIn.memType() == NCVMemoryTypeNone);
     85     NCV_SKIP_COND_BEGIN
     86 
     87     for (Ncv32u i=0; i<h_imgIn.height(); i++)
     88     {
     89         for (Ncv32u j=0; j<h_imgIn.width(); j++)
     90         {
     91             __pixColorConv<CSin, CSout, Tin, Tout>::_pixColorConv(h_imgIn.at(j,i), h_imgOut.at(j,i));
     92         }
     93     }
     94 
     95     NCV_SKIP_COND_END
     96     return NCV_SUCCESS;
     97 }
     98 #endif
     99 
    100 #endif //_ncv_color_conversion_hpp_
    101