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158 lines (136 loc) · 5.61 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 <common/half.hpp>
#include <handle.hpp>
#include <join.hpp>
#include <af/data.h>
#include <vector>
using af::dim4;
using common::half;
using detail::Array;
using detail::cdouble;
using detail::cfloat;
using detail::intl;
using detail::uchar;
using detail::uint;
using detail::uintl;
using detail::ushort;
using std::swap;
using std::vector;
template<typename T>
static inline af_array join(const int dim, const af_array first,
const af_array second) {
return getHandle(join<T>(dim, getArray<T>(first), getArray<T>(second)));
}
template<typename T>
static inline af_array join_many(const int dim, const unsigned n_arrays,
const af_array *inputs) {
vector<Array<T>> inputs_;
inputs_.reserve(n_arrays);
for (unsigned i = 0; i < n_arrays; i++) {
inputs_.push_back(getArray<T>(inputs[i]));
}
return getHandle(join<T>(dim, inputs_));
}
af_err af_join(af_array *out, const int dim, const af_array first,
const af_array second) {
try {
const ArrayInfo &finfo = getInfo(first);
const ArrayInfo &sinfo = getInfo(second);
dim4 fdims = finfo.dims();
dim4 sdims = sinfo.dims();
ARG_ASSERT(1, dim >= 0 && dim < 4);
ARG_ASSERT(2, finfo.getType() == sinfo.getType());
if (sinfo.elements() == 0) { return af_retain_array(out, first); }
if (finfo.elements() == 0) { return af_retain_array(out, second); }
DIM_ASSERT(2, sinfo.elements() > 0);
DIM_ASSERT(3, finfo.elements() > 0);
// All dimensions except join dimension must be equal
// Compute output dims
for (int i = 0; i < 4; i++) {
if (i != dim) { DIM_ASSERT(2, fdims[i] == sdims[i]); }
}
af_array output;
switch (finfo.getType()) {
case f32: output = join<float>(dim, first, second); break;
case c32: output = join<cfloat>(dim, first, second); break;
case f64: output = join<double>(dim, first, second); break;
case c64: output = join<cdouble>(dim, first, second); break;
case b8: output = join<char>(dim, first, second); break;
case s32: output = join<int>(dim, first, second); break;
case u32: output = join<uint>(dim, first, second); break;
case s64: output = join<intl>(dim, first, second); break;
case u64: output = join<uintl>(dim, first, second); break;
case s16: output = join<short>(dim, first, second); break;
case u16: output = join<ushort>(dim, first, second); break;
case u8: output = join<uchar>(dim, first, second); break;
case f16: output = join<half>(dim, first, second); break;
default: TYPE_ERROR(1, finfo.getType());
}
std::swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}
af_err af_join_many(af_array *out, const int dim, const unsigned n_arrays,
const af_array *inputs) {
try {
ARG_ASSERT(3, inputs != nullptr);
if (n_arrays == 1) {
af_array ret = nullptr;
AF_CHECK(af_retain_array(&ret, inputs[0]));
std::swap(*out, ret);
return AF_SUCCESS;
}
vector<ArrayInfo> info;
info.reserve(n_arrays);
vector<af::dim4> dims(n_arrays);
for (unsigned i = 0; i < n_arrays; i++) {
info.push_back(getInfo(inputs[i]));
dims[i] = info[i].dims();
}
ARG_ASSERT(1, dim >= 0 && dim < 4);
for (unsigned i = 1; i < n_arrays; i++) {
ARG_ASSERT(3, info[0].getType() == info[i].getType());
DIM_ASSERT(3, info[i].elements() > 0);
}
// All dimensions except join dimension must be equal
// Compute output dims
for (int i = 0; i < 4; i++) {
if (i != dim) {
for (unsigned j = 1; j < n_arrays; j++) {
DIM_ASSERT(3, dims[0][i] == dims[j][i]);
}
}
}
af_array output;
switch (info[0].getType()) {
case f32: output = join_many<float>(dim, n_arrays, inputs); break;
case c32: output = join_many<cfloat>(dim, n_arrays, inputs); break;
case f64: output = join_many<double>(dim, n_arrays, inputs); break;
case c64: output = join_many<cdouble>(dim, n_arrays, inputs); break;
case b8: output = join_many<char>(dim, n_arrays, inputs); break;
case s32: output = join_many<int>(dim, n_arrays, inputs); break;
case u32: output = join_many<uint>(dim, n_arrays, inputs); break;
case s64: output = join_many<intl>(dim, n_arrays, inputs); break;
case u64: output = join_many<uintl>(dim, n_arrays, inputs); break;
case s16: output = join_many<short>(dim, n_arrays, inputs); break;
case u16: output = join_many<ushort>(dim, n_arrays, inputs); break;
case u8: output = join_many<uchar>(dim, n_arrays, inputs); break;
case f16: output = join_many<half>(dim, n_arrays, inputs); break;
default: TYPE_ERROR(1, info[0].getType());
}
swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}