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//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//
#define BOOST_TEST_MODULE TestSortByTransform
#include <boost/test/unit_test.hpp>
#include <boost/compute/system.hpp>
#include <boost/compute/algorithm/copy_n.hpp>
#include <boost/compute/algorithm/is_sorted.hpp>
#include <boost/compute/container/vector.hpp>
#include <boost/compute/experimental/sort_by_transform.hpp>
#include "check_macros.hpp"
#include "context_setup.hpp"
namespace compute = boost::compute;
BOOST_AUTO_TEST_CASE(sort_int_by_abs)
{
int data[] = { 1, -2, 4, -3, 0, 5, -8, -9 };
compute::vector<int> vector(data, data + 8, queue);
compute::experimental::sort_by_transform(
vector.begin(),
vector.end(),
compute::abs<int>(),
compute::less<int>(),
queue
);
CHECK_RANGE_EQUAL(int, 8, vector, (0, 1, -2, -3, 4, 5, -8, -9));
}
BOOST_AUTO_TEST_CASE(sort_vectors_by_length)
{
using compute::float4_;
float data[] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 1.0f, 0.0f,
3.0f, 2.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.5f, 0.0f
};
compute::vector<float4_> vector(4, context);
compute::copy_n(
reinterpret_cast<float4_ *>(data), 4, vector.begin(), queue
);
compute::experimental::sort_by_transform(
vector.begin(),
vector.end(),
compute::length<float4_>(),
compute::less<float>(),
queue
);
std::vector<float4_> host_vector(4);
compute::copy(
vector.begin(), vector.end(), host_vector.begin(), queue
);
BOOST_CHECK_EQUAL(host_vector[0], float4_(0.0f, 0.0f, 0.5f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[1], float4_(1.0f, 0.0f, 0.0f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[2], float4_(0.0f, 1.0f, 1.0f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[3], float4_(3.0f, 2.0f, 1.0f, 0.0f));
}
BOOST_AUTO_TEST_CASE(sort_vectors_by_component)
{
using compute::float4_;
float data[] = {
1.0f, 2.0f, 3.0f, 0.0f,
9.0f, 8.0f, 7.0f, 0.0f,
4.0f, 5.0f, 6.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f
};
compute::vector<float4_> vector(4, context);
compute::copy_n(
reinterpret_cast<float4_ *>(data), 4, vector.begin(), queue
);
// sort by y-component
compute::experimental::sort_by_transform(
vector.begin(),
vector.end(),
compute::get<1>(),
compute::less<float>(),
queue
);
std::vector<float4_> host_vector(4);
compute::copy(
vector.begin(), vector.end(), host_vector.begin(), queue
);
BOOST_CHECK_EQUAL(host_vector[0], float4_(0.0f, 0.0f, 0.0f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[1], float4_(1.0f, 2.0f, 3.0f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[2], float4_(4.0f, 5.0f, 6.0f, 0.0f));
BOOST_CHECK_EQUAL(host_vector[3], float4_(9.0f, 8.0f, 7.0f, 0.0f));
}
BOOST_AUTO_TEST_SUITE_END()
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