test/hash_test.cc

   1 /*
   2  * Copyright (c) 2018, Alliance for Open Media. All rights reserved
   3  *
   4  * This source code is subject to the terms of the BSD 2 Clause License and
   5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
   6  * was not distributed with this source code in the LICENSE file, you can
   7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
   8  * Media Patent License 1.0 was not distributed with this source code in the
   9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
  10  */
  11
  12 #include <cstdlib>
  13 #include <new>
  14
  15 #include "config/aom_config.h"
  16 #include "config/av1_rtcd.h"
  17
  18 #include "aom_ports/aom_timer.h"
  19 #include "av1/encoder/hash.h"
  20 #include "test/acm_random.h"
  21 #include "test/util.h"
  22 #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
  23
  24 namespace {
  25
  26 typedef uint32_t (*get_crc32c_value_func)(void *calculator, uint8_t *p,
  27                                           int length);
  28
  29 typedef ::testing::tuple<get_crc32c_value_func, int> HashParam;
  30
  31 class AV1Crc32cHashTest : public ::testing::TestWithParam<HashParam> {
  32  public:
  33   ~AV1Crc32cHashTest();
  34   void SetUp();
  35
  36   void TearDown();
  37
  38  protected:
  39   void RunCheckOutput(get_crc32c_value_func test_impl);
  40   void RunSpeedTest(get_crc32c_value_func test_impl);
  41
  42   void RunZeroTest(get_crc32c_value_func test_impl);
  43
  44   libaom_test::ACMRandom rnd_;
  45   CRC32C calc_;
  46   uint8_t *buffer_;
  47   int bsize_;
  48   int length_;
  49 };
  50
  51 AV1Crc32cHashTest::~AV1Crc32cHashTest() { ; }
  52
  53 void AV1Crc32cHashTest::SetUp() {
  54   rnd_.Reset(libaom_test::ACMRandom::DeterministicSeed());
  55   av1_crc32c_calculator_init(&calc_);
  56
  57   bsize_ = GET_PARAM(1);
  58   length_ = bsize_ * bsize_ * sizeof(uint16_t);
  59   buffer_ = new uint8_t[length_];
  60   ASSERT_TRUE(buffer_ != NULL);
  61   for (int i = 0; i < length_; ++i) {
  62     buffer_[i] = rnd_.Rand8();
  63   }
  64 }
  65
  66 void AV1Crc32cHashTest::TearDown() { delete[] buffer_; }
  67
  68 void AV1Crc32cHashTest::RunCheckOutput(get_crc32c_value_func test_impl) {
  69   get_crc32c_value_func ref_impl = av1_get_crc32c_value_c;
  70   // for the same buffer crc should be the same
  71   uint32_t crc0 = test_impl(&calc_, buffer_, length_);
  72   uint32_t crc1 = test_impl(&calc_, buffer_, length_);
  73   uint32_t crc2 = ref_impl(&calc_, buffer_, length_);
  74   ASSERT_EQ(crc0, crc1);
  75   ASSERT_EQ(crc0, crc2);  // should equal to software version
  76   // modify buffer
  77   buffer_[0] += 1;
  78   uint32_t crc3 = test_impl(&calc_, buffer_, length_);
  79   uint32_t crc4 = ref_impl(&calc_, buffer_, length_);
  80   ASSERT_NE(crc0, crc3);  // crc shoud not equal to previous one
  81   ASSERT_EQ(crc3, crc4);
  82 }
  83
  84 void AV1Crc32cHashTest::RunSpeedTest(get_crc32c_value_func test_impl) {
  85   get_crc32c_value_func impls[] = { av1_get_crc32c_value_c, test_impl };
  86   const int repeat = 10000000 / (bsize_ + bsize_);
  87
  88   aom_usec_timer timer;
  89   double time[2];
  90   for (int i = 0; i < 2; ++i) {
  91     aom_usec_timer_start(&timer);
  92     for (int j = 0; j < repeat; ++j) {
  93       impls[i](&calc_, buffer_, length_);
  94     }
  95     aom_usec_timer_mark(&timer);
  96     time[i] = static_cast<double>(aom_usec_timer_elapsed(&timer));
  97   }
  98   printf("hash %3dx%-3d:%7.2f/%7.2fus", bsize_, bsize_, time[0], time[1]);
  99   printf("(%3.2f)\n", time[0] / time[1]);
 100 }
 101
 102 void AV1Crc32cHashTest::RunZeroTest(get_crc32c_value_func test_impl) {
 103   uint8_t buffer0[1024] = { 0 };
 104   // for buffer with different size the crc should not be the same
 105   const uint32_t crc0 = test_impl(&calc_, buffer0, 32);
 106   const uint32_t crc1 = test_impl(&calc_, buffer0, 128);
 107   const uint32_t crc2 = test_impl(&calc_, buffer0, 1024);
 108   ASSERT_NE(crc0, crc1);
 109   ASSERT_NE(crc0, crc2);
 110   ASSERT_NE(crc1, crc2);
 111 }
 112
 113 TEST_P(AV1Crc32cHashTest, CheckOutput) { RunCheckOutput(GET_PARAM(0)); }
 114
 115 TEST_P(AV1Crc32cHashTest, CheckZero) { RunZeroTest(GET_PARAM(0)); }
 116
 117 TEST_P(AV1Crc32cHashTest, DISABLED_Speed) { RunSpeedTest(GET_PARAM(0)); }
 118
 119 const int kValidBlockSize[] = { 64, 32, 8, 4 };
 120
 121 INSTANTIATE_TEST_CASE_P(
 122     C, AV1Crc32cHashTest,
 123     ::testing::Combine(::testing::Values(&av1_get_crc32c_value_c),
 124                        ::testing::ValuesIn(kValidBlockSize)));
 125
 126 #if HAVE_SSE4_2
 127 INSTANTIATE_TEST_CASE_P(
 128     SSE4_2, AV1Crc32cHashTest,
 129     ::testing::Combine(::testing::Values(&av1_get_crc32c_value_sse4_2),
 130                        ::testing::ValuesIn(kValidBlockSize)));
 131 #endif
 132
 133 }  // namespace