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  #include "test_precomp.hpp"
  
  
  template <class T>
  TestResize<T>::TestResize(std::string testName_, NCVTestSourceProvider<T> &src_,
                            Ncv32u width_, Ncv32u height_, Ncv32u scaleFactor_, NcvBool bTextureCache_)
      :
      NCVTestProvider(testName_),
      src(src_),
      width(width_),
      height(height_),
      scaleFactor(scaleFactor_),
      bTextureCache(bTextureCache_)
  {
  }
  
  
  template <class T>
  bool TestResize<T>::toString(std::ofstream &strOut)
  {
      strOut << "sizeof(T)=" << sizeof(T) << std::endl;
      strOut << "width=" << width << std::endl;
      strOut << "scaleFactor=" << scaleFactor << std::endl;
      strOut << "bTextureCache=" << bTextureCache << std::endl;
      return true;
  }
  
  
  template <class T>
  bool TestResize<T>::init()
  {
      return true;
  }
  
  
  template <class T>
  bool TestResize<T>::process()
  {
      NCVStatus ncvStat;
      bool rcode = false;
  
      Ncv32s smallWidth = this->width / this->scaleFactor;
      Ncv32s smallHeight = this->height / this->scaleFactor;
      if (smallWidth == 0 || smallHeight == 0)
      {
          return true;
      }
  
      NcvSize32u srcSize(this->width, this->height);
  
      NCVMatrixAlloc<T> d_img(*this->allocatorGPU.get(), this->width, this->height);
      ncvAssertReturn(d_img.isMemAllocated(), false);
      NCVMatrixAlloc<T> h_img(*this->allocatorCPU.get(), this->width, this->height);
      ncvAssertReturn(h_img.isMemAllocated(), false);
  
      NCVMatrixAlloc<T> d_small(*this->allocatorGPU.get(), smallWidth, smallHeight);
      ncvAssertReturn(d_small.isMemAllocated(), false);
      NCVMatrixAlloc<T> h_small(*this->allocatorCPU.get(), smallWidth, smallHeight);
      ncvAssertReturn(h_small.isMemAllocated(), false);
      NCVMatrixAlloc<T> h_small_d(*this->allocatorCPU.get(), smallWidth, smallHeight);
      ncvAssertReturn(h_small_d.isMemAllocated(), false);
  
      NCV_SET_SKIP_COND(this->allocatorGPU.get()->isCounting());
      NCV_SKIP_COND_BEGIN
      ncvAssertReturn(this->src.fill(h_img), false);
      NCV_SKIP_COND_END
  
      ncvStat = h_img.copySolid(d_img, 0);
      ncvAssertReturn(ncvStat == NPPST_SUCCESS, false);
      NCV_SKIP_COND_BEGIN
      if (sizeof(T) == sizeof(Ncv32u))
      {
          ncvStat = nppiStDecimate_32u_C1R((Ncv32u *)d_img.ptr(), d_img.pitch(),
                                           (Ncv32u *)d_small.ptr(), d_small.pitch(),
                                           srcSize, this->scaleFactor,
                                           this->bTextureCache);
      }
      else if (sizeof(T) == sizeof(Ncv64u))
      {
          ncvStat = nppiStDecimate_64u_C1R((Ncv64u *)d_img.ptr(), d_img.pitch(),
                                           (Ncv64u *)d_small.ptr(), d_small.pitch(),
                                           srcSize, this->scaleFactor,
                                           this->bTextureCache);
      }
      else
      {
          ncvAssertPrintReturn(false, "Incorrect downsample test instance", false);
      }
      ncvAssertReturn(ncvStat == NPPST_SUCCESS, false);
      NCV_SKIP_COND_END
      ncvStat = d_small.copySolid(h_small_d, 0);
      ncvAssertReturn(ncvStat == NPPST_SUCCESS, false);
  
      NCV_SKIP_COND_BEGIN
      if (sizeof(T) == sizeof(Ncv32u))
      {
          ncvStat = nppiStDecimate_32u_C1R_host((Ncv32u *)h_img.ptr(), h_img.pitch(),
                                                (Ncv32u *)h_small.ptr(), h_small.pitch(),
                                                srcSize, this->scaleFactor);
      }
      else if (sizeof(T) == sizeof(Ncv64u))
      {
          ncvStat = nppiStDecimate_64u_C1R_host((Ncv64u *)h_img.ptr(), h_img.pitch(),
                                                (Ncv64u *)h_small.ptr(), h_small.pitch(),
                                                srcSize, this->scaleFactor);
      }
      else
      {
          ncvAssertPrintReturn(false, "Incorrect downsample test instance", false);
      }
      ncvAssertReturn(ncvStat == NPPST_SUCCESS, false);
      NCV_SKIP_COND_END
  
      //bit-to-bit check
      bool bLoopVirgin = true;
  
      NCV_SKIP_COND_BEGIN
      //const Ncv64f relEPS = 0.005;
      for (Ncv32u i=0; bLoopVirgin && i < h_small.height(); i++)
      {
          for (Ncv32u j=0; bLoopVirgin && j < h_small.width(); j++)
          {
              if (h_small.ptr()[h_small.stride()*i+j] != h_small_d.ptr()[h_small_d.stride()*i+j])
              {
                  bLoopVirgin = false;
              }
          }
      }
      NCV_SKIP_COND_END
  
      if (bLoopVirgin)
      {
          rcode = true;
      }
  
      return rcode;
  }
  
  
  template <class T>
  bool TestResize<T>::deinit()
  {
      return true;
  }
  
  
  template class TestResize<Ncv32u>;
  template class TestResize<Ncv64u>;
  