text: /*
   * 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.
   */
  
  #ifndef AV1_TXFM_TEST_H_
  #define AV1_TXFM_TEST_H_
  
  #include <stdio.h>
  #include <stdlib.h>
  #ifdef _MSC_VER
  #define _USE_MATH_DEFINES
  #endif
  #include <math.h>
  
  #include "third_party/googletest/src/include/gtest/gtest.h"
  
  #include "test/acm_random.h"
  #include "av1/common/enums.h"
  #include "av1/common/av1_txfm.h"
  #include "./av1_rtcd.h"
  
  namespace libaom_test {
  typedef enum {
    TYPE_DCT = 0,
    TYPE_ADST,
    TYPE_IDCT,
    TYPE_IADST,
    TYPE_LAST
  } TYPE_TXFM;
  
  int get_txfm1d_size(TX_SIZE tx_size);
  
  void get_txfm1d_type(TX_TYPE txfm2d_type, TYPE_TXFM *type0, TYPE_TXFM *type1);
  
  void reference_dct_1d(const double *in, double *out, int size);
  
  void reference_adst_1d(const double *in, double *out, int size);
  
  void reference_hybrid_1d(double *in, double *out, int size, int type);
  
  void reference_hybrid_2d(double *in, double *out, int size, int type0,
                           int type1);
  template <typename Type1, typename Type2>
  static double compute_avg_abs_error(const Type1 *a, const Type2 *b,
                                      const int size) {
    double error = 0;
    for (int i = 0; i < size; i++) {
      error += fabs(static_cast<double>(a[i]) - static_cast<double>(b[i]));
    }
    error = error / size;
    return error;
  }
  
  template <typename Type>
  void fliplr(Type *dest, int stride, int length);
  
  template <typename Type>
  void flipud(Type *dest, int stride, int length);
  
  template <typename Type>
  void fliplrud(Type *dest, int stride, int length);
  
  typedef void (*TxfmFunc)(const int32_t *in, int32_t *out, const int8_t *cos_bit,
                           const int8_t *range_bit);
  
  typedef void (*Fwd_Txfm2d_Func)(const int16_t *, int32_t *, int, int, int);
  typedef void (*Inv_Txfm2d_Func)(const int32_t *, uint16_t *, int, int, int);
  
  static const int bd = 10;
  static const int input_base = (1 << bd);
  
  #if CONFIG_AOM_HIGHBITDEPTH
  static const Fwd_Txfm2d_Func fwd_txfm_func_ls[TX_SIZES] = {
    av1_fwd_txfm2d_4x4_c, av1_fwd_txfm2d_8x8_c, av1_fwd_txfm2d_16x16_c,
    av1_fwd_txfm2d_32x32_c
  };
  
  static const Inv_Txfm2d_Func inv_txfm_func_ls[TX_SIZES] = {
    av1_inv_txfm2d_add_4x4_c, av1_inv_txfm2d_add_8x8_c,
    av1_inv_txfm2d_add_16x16_c, av1_inv_txfm2d_add_32x32_c
  };
  #endif  // CONFIG_AOM_HIGHBITDEPTH
  
  }  // namespace libaom_test
  #endif  // AV1_TXFM_TEST_H_
  