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join.cpp
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184 lines (162 loc) · 6.72 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 <algorithm>
#include <climits>
#include <vector>
using af::dim4;
using arrayfire::common::half;
using detail::Array;
using detail::cdouble;
using detail::cfloat;
using detail::createEmptyArray;
using detail::intl;
using detail::schar;
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);
dim_t dim_size{0};
for (unsigned i{0}; i < n_arrays; ++i) {
const Array<T> &iArray = getArray<T>(inputs[i]);
if (!iArray.isEmpty()) {
inputs_.push_back(iArray);
dim_size += iArray.dims().dims[dim];
}
}
// All dimensions except join dimension must be equal
// calculate odims size
af::dim4 odims{inputs_[0].dims()};
odims.dims[dim] = dim_size;
Array<T> out{createEmptyArray<T>(odims)};
join<T>(out, dim, inputs_);
return getHandle(out);
}
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)};
const dim4 &fdims{finfo.dims()};
const 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, finfo.elements() > 0);
DIM_ASSERT(3, sinfo.elements() > 0);
// All dimensions except join dimension must be equal
for (int i{0}; i < AF_MAX_DIMS; i++) {
if (i != dim) { DIM_ASSERT(2, fdims.dims[i] == sdims.dims[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 s8: output = join<schar>(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));
std::swap(*out, ret);
return AF_SUCCESS;
}
ARG_ASSERT(1, dim >= 0 && dim < AF_MAX_DIMS);
ARG_ASSERT(2, n_arrays > 0);
const af_array *inputIt{inputs};
const af_array *inputEnd{inputs + n_arrays};
while ((inputIt != inputEnd) && (getInfo(*inputIt).elements() == 0)) {
++inputIt;
}
if (inputIt == inputEnd) {
// All arrays have 0 elements
af_array ret = nullptr;
AF_CHECK(af_retain_array(&ret, *inputs));
std::swap(*out, ret);
return AF_SUCCESS;
}
// inputIt points to first non empty array
const af_dtype assertType{getInfo(*inputIt).getType()};
const dim4 &assertDims{getInfo(*inputIt).dims()};
// Check all remaining arrays on assertType and assertDims
while (++inputIt != inputEnd) {
const ArrayInfo &info = getInfo(*inputIt);
if (info.elements() > 0) {
ARG_ASSERT(3, assertType == info.getType());
const dim4 &infoDims{getInfo(*inputIt).dims()};
// All dimensions except join dimension must be equal
for (int i{0}; i < AF_MAX_DIMS; i++) {
if (i != dim) {
DIM_ASSERT(3, assertDims.dims[i] == infoDims.dims[i]);
}
}
}
}
af_array output;
switch (assertType) {
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 s8: output = join_many<schar>(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, assertType);
}
swap(*out, output);
}
CATCHALL;
return AF_SUCCESS;
}