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/*
* This file is a part of Luminance HDR package
* ----------------------------------------------------------------------
* Copyright (C) 2012 Davide Anastasia
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* ----------------------------------------------------------------------
*/
#include <gtest/gtest.h>
#if GTEST_HAS_COMBINE
#include <algorithm>
#include <tuple>
#include <Libpfs/array2d.h>
#include <Libpfs/manip/rotate.h>
#include "CompareVector.h"
#include "SeqInt.h"
using ::testing::TestWithParam;
using ::testing::Values;
using ::testing::Combine;
template <typename InputType>
void rotate_ccw(const InputType* input,
InputType* output,
size_t width,
size_t height)
{
for (size_t j = 0; j < height; j++)
{
for (size_t i = 0; i < width; i++)
{
output[(width - i - 1)*height + j] = input[j*width + i];
}
}
}
template <typename InputType>
void rotate_cw(const InputType* input,
InputType* output,
size_t width,
size_t height)
{
for (size_t j = 0; j < height; j++)
{
for (size_t i = 0; i < width; i++)
{
output[(i+1)*height - 1 - j] = input[j*width + i];
}
}
}
class TestPfsRotate : public TestWithParam< ::std::tuple<size_t, size_t> >
{
protected:
size_t m_rows;
size_t m_cols;
pfs::Array2Df inputVector;
pfs::Array2Df referenceOutput;
pfs::Array2Df computedOutput;
public:
TestPfsRotate()
: m_rows( ::std::get<0>( GetParam() ))
, m_cols( ::std::get<1>( GetParam() ))
, inputVector(m_cols, m_rows)
, referenceOutput(m_rows, m_cols)
, computedOutput(m_rows, m_cols)
{
std::generate(inputVector.begin(), inputVector.end(), SeqInt());
}
size_t cols() const { return m_cols; }
size_t rows() const { return m_rows; }
};
TEST_P(TestPfsRotate, ClockWise)
{
rotate_cw(inputVector.data(),
referenceOutput.data(),
cols(), rows());
pfs::rotate(&inputVector,
&computedOutput,
true);
compareVectors(referenceOutput.data(),
computedOutput.data(),
cols()*rows());
}
TEST_P(TestPfsRotate, CClockWise)
{
rotate_ccw(inputVector.data(),
referenceOutput.data(),
cols(), rows());
pfs::rotate(&inputVector,
&computedOutput,
false);
compareVectors(referenceOutput.data(),
computedOutput.data(),
cols()*rows());
}
INSTANTIATE_TEST_CASE_P(Test,
TestPfsRotate,
Combine(Values(91, 352, 403),
Values(27, 256, 511))
);
#else
TEST(DummyTest, CombineIsNotSupportedOnThisPlatform) {}
#endif
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