/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */

#include <math.h>
#include <stdlib.h>
#include <string.h>

#include "third_party/googletest/src/googletest/include/gtest/gtest.h"

#include "config/av1_rtcd.h"
#include "config/aom_dsp_rtcd.h"
#include "test/acm_random.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "test/transform_test_base.h"
#include "test/util.h"
#include "av1/common/entropy.h"
#include "aom/aom_codec.h"
#include "aom/aom_integer.h"
#include "aom_ports/mem.h"

using libaom_test::ACMRandom;

namespace {
typedef void (*FdctFunc)(const int16_t *in, tran_low_t *out, int stride);
typedef void (*IdctFunc)(const tran_low_t *in, uint8_t *out, int stride);

using libaom_test::FhtFunc;

typedef ::testing::tuple<FdctFunc, IdctFunc, TX_TYPE, aom_bit_depth_t, int>
    Dct4x4Param;

void fwht4x4_ref(const int16_t *in, tran_low_t *out, int stride,
                 TxfmParam * /*txfm_param*/) {
  av1_fwht4x4_c(in, out, stride);
}

void iwht4x4_10(const tran_low_t *in, uint8_t *out, int stride) {
  av1_highbd_iwht4x4_16_add_c(in, out, stride, 10);
}

void iwht4x4_12(const tran_low_t *in, uint8_t *out, int stride) {
  av1_highbd_iwht4x4_16_add_c(in, out, stride, 12);
}

class Trans4x4WHT : public libaom_test::TransformTestBase,
                    public ::testing::TestWithParam<Dct4x4Param> {
 public:
  virtual ~Trans4x4WHT() {}

  virtual void SetUp() {
    fwd_txfm_ = GET_PARAM(0);
    inv_txfm_ = GET_PARAM(1);
    pitch_ = 4;
    height_ = 4;
    fwd_txfm_ref = fwht4x4_ref;
    bit_depth_ = GET_PARAM(3);
    mask_ = (1 << bit_depth_) - 1;
    num_coeffs_ = GET_PARAM(4);
  }
  virtual void TearDown() { libaom_test::ClearSystemState(); }

 protected:
  void RunFwdTxfm(const int16_t *in, tran_low_t *out, int stride) {
    fwd_txfm_(in, out, stride);
  }
  void RunInvTxfm(const tran_low_t *out, uint8_t *dst, int stride) {
    inv_txfm_(out, dst, stride);
  }

  FdctFunc fwd_txfm_;
  IdctFunc inv_txfm_;
};

TEST_P(Trans4x4WHT, AccuracyCheck) { RunAccuracyCheck(0, 0.00001); }

TEST_P(Trans4x4WHT, CoeffCheck) { RunCoeffCheck(); }

TEST_P(Trans4x4WHT, MemCheck) { RunMemCheck(); }

TEST_P(Trans4x4WHT, InvAccuracyCheck) { RunInvAccuracyCheck(0); }
using ::testing::make_tuple;

INSTANTIATE_TEST_CASE_P(
    C, Trans4x4WHT,
    ::testing::Values(make_tuple(&av1_highbd_fwht4x4_c, &iwht4x4_10, DCT_DCT,
                                 AOM_BITS_10, 16),
                      make_tuple(&av1_highbd_fwht4x4_c, &iwht4x4_12, DCT_DCT,
                                 AOM_BITS_12, 16)));
}  // namespace