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regions.cpp
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regions.cpp
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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/err_common.hpp>
#include <handle.hpp>
#include <regions.hpp>
#include <types.hpp>
#include <af/defines.h>
#include <af/dim4.hpp>
#include <af/image.h>
using af::dim4;
using detail::uint;
using detail::ushort;
template<typename T>
static af_array regions(af_array const &in, af_connectivity connectivity) {
return getHandle<T>(regions<T>(getArray<char>(in), connectivity));
}
af_err af_regions(af_array *out, const af_array in,
const af_connectivity connectivity, const af_dtype type) {
try {
ARG_ASSERT(2, (connectivity == AF_CONNECTIVITY_4 ||
connectivity == AF_CONNECTIVITY_8));
const ArrayInfo &info = getInfo(in);
af::dim4 dims = info.dims();
dim_t in_ndims = dims.ndims();
DIM_ASSERT(1, (in_ndims == 2));
af_dtype in_type = info.getType();
if (in_type != b8) { TYPE_ERROR(1, in_type); }
af_array output;
switch (type) {
case f32: output = regions<float>(in, connectivity); break;
case f64: output = regions<double>(in, connectivity); break;
case s32: output = regions<int>(in, connectivity); break;
case u32: output = regions<uint>(in, connectivity); break;
case s16: output = regions<short>(in, connectivity); break;
case u16: output = regions<ushort>(in, connectivity); break;
default: TYPE_ERROR(0, type);
}
std::swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}