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flat.cpp
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136 lines (108 loc) · 3.17 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 <gtest/gtest.h>
#include <testHelpers.hpp>
#include <af/arith.h>
#include <af/array.h>
#include <af/data.h>
#include <af/device.h>
#include <af/random.h>
#include <vector>
using af::array;
using af::dim4;
using af::flat;
using af::freeHost;
using af::randu;
using af::seq;
using af::span;
using std::vector;
TEST(FlatTests, Test_flat_1D) {
const int num = 10000;
array in = randu(num);
array out = flat(in);
ASSERT_ARRAYS_EQ(in, out);
}
TEST(FlatTests, Test_flat_2D_Half) {
if (noHalfTests(f16)) return;
const int num = 10;
array in = randu(num, num, f16);
array out = flat(in);
vector<half_float::half> gold(num * num);
in.host(&gold[0]);
ASSERT_VEC_ARRAY_EQ(gold, dim4(num * num), out);
}
TEST(FlatTests, Test_flat_2D) {
const int nx = 200;
const int ny = 200;
array in = randu(nx, ny);
array out = flat(in);
vector<float> h_in_flat(in.elements());
in.host(h_in_flat.data());
dim4 h_in_flat_dims = dim4(nx * ny);
ASSERT_VEC_ARRAY_EQ(h_in_flat, h_in_flat_dims, out);
}
TEST(FlatTests, Test_flat_1D_index) {
const int num = 10000;
const int st = 101;
const int en = 5000;
array in = randu(num);
array tmp = in(seq(st, en));
array out = flat(tmp);
float *h_in = in.host<float>();
float *h_out = out.host<float>();
// TODO: Use ASSERT_ARRAYS_EQUAL
for (int i = st; i <= en; i++) { ASSERT_EQ(h_in[i], h_out[i - st]); }
freeHost(h_in);
freeHost(h_out);
}
TEST(FlatTests, Test_flat_2D_index0) {
const int nx = 200;
const int ny = 200;
const int st = 21;
const int en = 180;
const int nxo = (en - st + 1);
array in = randu(nx, ny);
array tmp = in(seq(st, en), span);
array out = flat(tmp);
float *h_in = in.host<float>();
float *h_out = out.host<float>();
// TODO: Use ASSERT_ARRAYS_EQUAL
for (int j = 0; j < ny; j++) {
const int in_off = j * nx;
const int out_off = j * nxo;
for (int i = st; i <= en; i++) {
ASSERT_EQ(h_in[i + in_off], h_out[i - st + out_off])
<< "at (" << i << "," << j << ")";
}
}
freeHost(h_in);
freeHost(h_out);
}
TEST(FlatTests, Test_flat_2D_index1) {
const int nx = 200;
const int ny = 200;
const int st = 21;
const int en = 180;
array in = randu(nx, ny);
array tmp = in(span, seq(st, en));
array out = flat(tmp);
float *h_in = in.host<float>();
float *h_out = out.host<float>();
// TODO: Use ASSERT_ARRAYS_EQUAL
for (int j = st; j <= en; j++) {
const int in_off = j * nx;
const int out_off = (j - st) * nx;
for (int i = 0; i < nx; i++) {
ASSERT_EQ(h_in[i + in_off], h_out[i + out_off])
<< "at (" << i << "," << j << ")";
}
}
freeHost(h_in);
freeHost(h_out);
}