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//---------------------------------------------------------------------------//
// Copyright (c) 2015 Jakub Pola <jakub.pola@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 TestScatterIf
#include <boost/test/unit_test.hpp>
#include <boost/compute/system.hpp>
#include <boost/compute/algorithm/scatter_if.hpp>
#include <boost/compute/container/vector.hpp>
#include <boost/compute/iterator/constant_buffer_iterator.hpp>
#include <boost/compute/iterator/counting_iterator.hpp>
#include <boost/compute/functional.hpp>
#include "check_macros.hpp"
#include "context_setup.hpp"
namespace bc = boost::compute;
BOOST_AUTO_TEST_CASE(scatter_if_int)
{
int input_data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bc::vector<int> input(input_data, input_data + 10, queue);
int map_data[] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
bc::vector<int> map(map_data, map_data + 10, queue);
int stencil_data[] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
bc::vector<bc::uint_> stencil(stencil_data, stencil_data + 10, queue);
bc::vector<int> output(input.size(), -1, queue);
bc::scatter_if(input.begin(), input.end(),
map.begin(), stencil.begin(),
output.begin(),
queue);
CHECK_RANGE_EQUAL(int, 10, output, (9, -1, 7, -1, 5, -1, 3, -1, 1, -1) );
}
BOOST_AUTO_TEST_CASE(scatter_if_constant_indices)
{
int input_data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bc::vector<int> input(input_data, input_data + 10, queue);
int map_data[] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
bc::buffer map_buffer(context,
10 * sizeof(int),
bc::buffer::read_only | bc::buffer::use_host_ptr,
map_data);
int stencil_data[] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
bc::buffer stencil_buffer(context,
10 * sizeof(bc::uint_),
bc::buffer::read_only | bc::buffer::use_host_ptr,
stencil_data);
bc::vector<int> output(input.size(), -1, queue);
bc::scatter_if(input.begin(),
input.end(),
bc::make_constant_buffer_iterator<int>(map_buffer, 0),
bc::make_constant_buffer_iterator<int>(stencil_buffer, 0),
output.begin(),
queue);
CHECK_RANGE_EQUAL(int, 10, output, (9, -1, 7, -1, 5, -1, 3, -1, 1, -1) );
}
BOOST_AUTO_TEST_CASE(scatter_if_function)
{
int input_data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bc::vector<int> input(input_data, input_data + 10, queue);
int map_data[] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
bc::vector<int> map(map_data, map_data + 10, queue);
int stencil_data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bc::vector<bc::uint_> stencil(stencil_data, stencil_data + 10, queue);
bc::vector<int> output(input.size(), -1, queue);
BOOST_COMPUTE_FUNCTION(int, gt_than_5, (int x),
{
if (x > 5)
return true;
else
return false;
});
bc::scatter_if(input.begin(),
input.end(),
map.begin(),
stencil.begin(),
output.begin(),
gt_than_5,
queue);
CHECK_RANGE_EQUAL(int, 10, output, (9, 8, 7, 6, -1, -1, -1, -1, -1, -1) );
}
BOOST_AUTO_TEST_CASE(scatter_if_counting_iterator)
{
int input_data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bc::vector<int> input(input_data, input_data + 10, queue);
int map_data[] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
bc::vector<int> map(map_data, map_data + 10, queue);
bc::vector<int> output(input.size(), -1, queue);
BOOST_COMPUTE_FUNCTION(int, gt_than_5, (int x),
{
if (x > 5)
return true;
else
return false;
});
bc::scatter_if(input.begin(),
input.end(),
map.begin(),
bc::make_counting_iterator<int>(0),
output.begin(),
gt_than_5,
queue);
CHECK_RANGE_EQUAL(int, 10, output, (9, 8, 7, 6, -1, -1, -1, -1, -1, -1) );
}
BOOST_AUTO_TEST_SUITE_END()
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