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#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstdlib>
#include <iostream>
#include <cctk.h>
#include <cctk_Parameters.h>
#include "operator_prototypes_4d.hh"
#include "typeprops.hh"
using namespace std;
namespace CarpetLib {
#define SRCIND4(i,j,k,l) \
index4 (srcioff + (i), srcjoff + (j), srckoff + (k), srcloff + (l), \
srciext, srcjext, srckext, srclext)
#define DSTIND4(i,j,k,l) \
index4 (dstioff + (i), dstjoff + (j), dstkoff + (k), dstloff + (l), \
dstiext, dstjext, dstkext, dstlext)
template <typename T>
void
copy_4d (T const * restrict const src,
ivect4 const & restrict srcext,
T * restrict const dst,
ivect4 const & restrict dstext,
ibbox4 const & restrict srcbbox,
ibbox4 const & restrict dstbbox,
ibbox4 const & restrict regbbox)
{
if (any (srcbbox.stride() != regbbox.stride() or
dstbbox.stride() != regbbox.stride()))
{
cout << "copy_4d.cc:" << endl
<< "srcbbox=" << srcbbox << endl
<< "dstbbox=" << dstbbox << endl
<< "regbbox=" << regbbox << endl;
CCTK_WARN (0, "Internal error: strides disagree");
}
if (any (srcbbox.stride() != dstbbox.stride())) {
CCTK_WARN (0, "Internal error: strides disagree");
}
// This could be handled, but is likely to point to an error
// elsewhere
if (regbbox.empty()) {
CCTK_WARN (0, "Internal error: region extent is empty");
}
if (not regbbox.is_contained_in(srcbbox) or
not regbbox.is_contained_in(dstbbox))
{
CCTK_WARN (0, "Internal error: region extent is not contained in array extent");
}
if (any (srcext != srcbbox.shape() / srcbbox.stride() or
dstext != dstbbox.shape() / dstbbox.stride()))
{
CCTK_WARN (0, "Internal error: array sizes don't agree with bounding boxes");
}
ivect4 const regext = regbbox.shape() / regbbox.stride();
assert (all ((regbbox.lower() - srcbbox.lower()) % srcbbox.stride() == 0));
ivect4 const srcoff = (regbbox.lower() - srcbbox.lower()) / srcbbox.stride();
assert (all ((regbbox.lower() - dstbbox.lower()) % dstbbox.stride() == 0));
ivect4 const dstoff = (regbbox.lower() - dstbbox.lower()) / dstbbox.stride();
ptrdiff_t const srciext = srcext[0];
ptrdiff_t const srcjext = srcext[1];
ptrdiff_t const srckext = srcext[2];
ptrdiff_t const srclext = srcext[3];
ptrdiff_t const dstiext = dstext[0];
ptrdiff_t const dstjext = dstext[1];
ptrdiff_t const dstkext = dstext[2];
ptrdiff_t const dstlext = dstext[3];
ptrdiff_t const regiext = regext[0];
ptrdiff_t const regjext = regext[1];
ptrdiff_t const regkext = regext[2];
ptrdiff_t const reglext = regext[3];
ptrdiff_t const srcioff = srcoff[0];
ptrdiff_t const srcjoff = srcoff[1];
ptrdiff_t const srckoff = srcoff[2];
ptrdiff_t const srcloff = srcoff[3];
ptrdiff_t const dstioff = dstoff[0];
ptrdiff_t const dstjoff = dstoff[1];
ptrdiff_t const dstkoff = dstoff[2];
ptrdiff_t const dstloff = dstoff[3];
// Loop over region
#pragma omp parallel for
for (int l=0; l<reglext; ++l) {
for (int k=0; k<regkext; ++k) {
for (int j=0; j<regjext; ++j) {
for (int i=0; i<regiext; ++i) {
dst [DSTIND4(i, j, k, l)] = src [SRCIND4(i, j, k, l)];
}
}
}
}
}
#define INSTANTIATE(T) \
template \
void \
copy_4d (T const * restrict const src, \
ivect4 const & restrict srcext, \
T * restrict const dst, \
ivect4 const & restrict dstext, \
ibbox4 const & restrict srcbbox, \
ibbox4 const & restrict dstbbox, \
ibbox4 const & restrict regbbox);
#include "instantiate"
#undef INSTANTIATE
} // namespace CarpetLib
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