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diff.cpp
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115 lines (98 loc) · 3.71 KB
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/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <backend.hpp>
#include <common/ArrayInfo.hpp>
#include <common/err_common.hpp>
#include <diff.hpp>
#include <handle.hpp>
#include <af/algorithm.h>
#include <af/defines.h>
using af::dim4;
using arrayfire::getArray;
using arrayfire::getHandle;
using detail::cdouble;
using detail::cfloat;
using detail::intl;
using detail::schar;
using detail::uchar;
using detail::uint;
using detail::uintl;
using detail::ushort;
template<typename T>
static inline af_array diff1(const af_array in, const int dim) {
return getHandle(diff1<T>(getArray<T>(in), dim));
}
template<typename T>
static inline af_array diff2(const af_array in, const int dim) {
return getHandle(diff2<T>(getArray<T>(in), dim));
}
af_err af_diff1(af_array* out, const af_array in, const int dim) {
try {
ARG_ASSERT(2, ((dim >= 0) && (dim < 4)));
const ArrayInfo& info = getInfo(in);
af_dtype type = info.getType();
af::dim4 in_dims = info.dims();
if (in_dims[dim] < 2) {
return af_create_handle(out, 0, nullptr, type);
}
DIM_ASSERT(1, in_dims[dim] >= 2);
af_array output;
switch (type) {
case f32: output = diff1<float>(in, dim); break;
case c32: output = diff1<cfloat>(in, dim); break;
case f64: output = diff1<double>(in, dim); break;
case c64: output = diff1<cdouble>(in, dim); break;
case b8: output = diff1<char>(in, dim); break;
case s32: output = diff1<int>(in, dim); break;
case u32: output = diff1<uint>(in, dim); break;
case s64: output = diff1<intl>(in, dim); break;
case u64: output = diff1<uintl>(in, dim); break;
case s16: output = diff1<short>(in, dim); break;
case u16: output = diff1<ushort>(in, dim); break;
case s8: output = diff1<schar>(in, dim); break;
case u8: output = diff1<uchar>(in, dim); break;
default: TYPE_ERROR(1, type);
}
std::swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}
af_err af_diff2(af_array* out, const af_array in, const int dim) {
try {
ARG_ASSERT(2, ((dim >= 0) && (dim < 4)));
const ArrayInfo& info = getInfo(in);
af_dtype type = info.getType();
af::dim4 in_dims = info.dims();
if (in_dims[dim] < 3) {
return af_create_handle(out, 0, nullptr, type);
}
DIM_ASSERT(1, in_dims[dim] >= 3);
af_array output;
switch (type) {
case f32: output = diff2<float>(in, dim); break;
case c32: output = diff2<cfloat>(in, dim); break;
case f64: output = diff2<double>(in, dim); break;
case c64: output = diff2<cdouble>(in, dim); break;
case b8: output = diff2<char>(in, dim); break;
case s32: output = diff2<int>(in, dim); break;
case u32: output = diff2<uint>(in, dim); break;
case s64: output = diff2<intl>(in, dim); break;
case u64: output = diff2<uintl>(in, dim); break;
case s16: output = diff2<short>(in, dim); break;
case u16: output = diff2<ushort>(in, dim); break;
case s8: output = diff2<schar>(in, dim); break;
case u8: output = diff2<uchar>(in, dim); break;
default: TYPE_ERROR(1, type);
}
std::swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}