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      1 /*
      2  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include "testing/gtest/include/gtest/gtest.h"
     12 #include "webrtc/modules/audio_processing/beamformer/complex_matrix.h"
     13 #include "webrtc/modules/audio_processing/beamformer/matrix_test_helpers.h"
     14 
     15 namespace webrtc {
     16 
     17 TEST(ComplexMatrixTest, TestPointwiseConjugate) {
     18   const int kNumRows = 2;
     19   const int kNumCols = 4;
     20 
     21   const complex<float> kValuesInitial[kNumRows][kNumCols] = {
     22       {complex<float>(1.1f, 1.1f), complex<float>(2.2f, -2.2f),
     23        complex<float>(3.3f, 3.3f), complex<float>(4.4f, -4.4f)},
     24       {complex<float>(5.5f, 5.5f), complex<float>(6.6f, -6.6f),
     25        complex<float>(7.7f, 7.7f), complex<float>(8.8f, -8.8f)}};
     26 
     27   const complex<float> kValuesExpected[kNumRows][kNumCols] = {
     28       {complex<float>(1.1f, -1.1f), complex<float>(2.2f, 2.2f),
     29        complex<float>(3.3f, -3.3f), complex<float>(4.4f, 4.4f)},
     30       {complex<float>(5.5f, -5.5f), complex<float>(6.6f, 6.6f),
     31        complex<float>(7.7f, -7.7f), complex<float>(8.8f, 8.8f)}};
     32 
     33   ComplexMatrix<float> initial_mat(*kValuesInitial, kNumRows, kNumCols);
     34   ComplexMatrix<float> expected_result(*kValuesExpected, kNumRows, kNumCols);
     35   ComplexMatrix<float> actual_result(kNumRows, kNumCols);
     36 
     37   actual_result.PointwiseConjugate(initial_mat);
     38   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(expected_result,
     39                                                         actual_result);
     40 
     41   initial_mat.PointwiseConjugate();
     42   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(initial_mat,
     43                                                         actual_result);
     44 }
     45 
     46 TEST(ComplexMatrixTest, TestConjugateTranspose) {
     47   const int kNumInitialRows = 2;
     48   const int kNumInitialCols = 4;
     49   const int kNumResultRows = 4;
     50   const int kNumResultCols = 2;
     51 
     52   const complex<float> kValuesInitial[kNumInitialRows][kNumInitialCols] = {
     53       {complex<float>(1.1f, 1.1f), complex<float>(2.2f, 2.2f),
     54        complex<float>(3.3f, 3.3f), complex<float>(4.4f, 4.4f)},
     55       {complex<float>(5.5f, 5.5f), complex<float>(6.6f, 6.6f),
     56        complex<float>(7.7f, 7.7f), complex<float>(8.8f, 8.8f)}};
     57 
     58   const complex<float> kValuesExpected[kNumResultRows][kNumResultCols] = {
     59       {complex<float>(1.1f, -1.1f), complex<float>(5.5f, -5.5f)},
     60       {complex<float>(2.2f, -2.2f), complex<float>(6.6f, -6.6f)},
     61       {complex<float>(3.3f, -3.3f), complex<float>(7.7f, -7.7f)},
     62       {complex<float>(4.4f, -4.4f), complex<float>(8.8f, -8.8f)}};
     63 
     64   ComplexMatrix<float> initial_mat(
     65       *kValuesInitial, kNumInitialRows, kNumInitialCols);
     66   ComplexMatrix<float> expected_result(
     67       *kValuesExpected, kNumResultRows, kNumResultCols);
     68   ComplexMatrix<float> actual_result(kNumResultRows, kNumResultCols);
     69 
     70   actual_result.ConjugateTranspose(initial_mat);
     71   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(expected_result,
     72                                                         actual_result);
     73 
     74   initial_mat.ConjugateTranspose();
     75   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(initial_mat,
     76                                                         actual_result);
     77 }
     78 
     79 TEST(ComplexMatrixTest, TestZeroImag) {
     80   const int kNumRows = 2;
     81   const int kNumCols = 2;
     82   const complex<float> kValuesInitial[kNumRows][kNumCols] = {
     83       {complex<float>(1.1f, 1.1f), complex<float>(2.2f, 2.2f)},
     84       {complex<float>(3.3f, 3.3f), complex<float>(4.4f, 4.4f)}};
     85   const complex<float> kValuesExpected[kNumRows][kNumCols] = {
     86       {complex<float>(1.1f, 0.f), complex<float>(2.2f, 0.f)},
     87       {complex<float>(3.3f, 0.f), complex<float>(4.4f, 0.f)}};
     88 
     89   ComplexMatrix<float> initial_mat(*kValuesInitial, kNumRows, kNumCols);
     90   ComplexMatrix<float> expected_result(*kValuesExpected, kNumRows, kNumCols);
     91   ComplexMatrix<float> actual_result;
     92 
     93   actual_result.ZeroImag(initial_mat);
     94   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(expected_result,
     95                                                         actual_result);
     96 
     97   initial_mat.ZeroImag();
     98   MatrixTestHelpers::ValidateMatrixEqualityComplexFloat(initial_mat,
     99                                                         actual_result);
    100 }
    101 
    102 }  // namespace webrtc
    103