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      1 /*
      2  *  Copyright (c) 2017 The WebM 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 <math.h>
     12 #include <stdlib.h>
     13 #include <string.h>
     14 
     15 #include <limits>
     16 
     17 #include "third_party/googletest/src/include/gtest/gtest.h"
     18 
     19 #include "./vpx_dsp_rtcd.h"
     20 #include "test/acm_random.h"
     21 #include "test/buffer.h"
     22 #include "test/clear_system_state.h"
     23 #include "test/register_state_check.h"
     24 #include "test/util.h"
     25 #include "vpx/vpx_codec.h"
     26 #include "vpx/vpx_integer.h"
     27 #include "vpx_dsp/vpx_dsp_common.h"
     28 
     29 using libvpx_test::ACMRandom;
     30 using libvpx_test::Buffer;
     31 using std::tr1::tuple;
     32 using std::tr1::make_tuple;
     33 
     34 namespace {
     35 typedef void (*PartialFdctFunc)(const int16_t *in, tran_low_t *out, int stride);
     36 
     37 typedef tuple<PartialFdctFunc, int /* size */, vpx_bit_depth_t>
     38     PartialFdctParam;
     39 
     40 tran_low_t partial_fdct_ref(const Buffer<int16_t> &in, int size) {
     41   int64_t sum = 0;
     42   for (int y = 0; y < size; ++y) {
     43     for (int x = 0; x < size; ++x) {
     44       sum += in.TopLeftPixel()[y * in.stride() + x];
     45     }
     46   }
     47 
     48   switch (size) {
     49     case 4: sum *= 2; break;
     50     case 8: /*sum = sum;*/ break;
     51     case 16: sum >>= 1; break;
     52     case 32: sum >>= 3; break;
     53   }
     54 
     55   return static_cast<tran_low_t>(sum);
     56 }
     57 
     58 class PartialFdctTest : public ::testing::TestWithParam<PartialFdctParam> {
     59  public:
     60   PartialFdctTest() {
     61     fwd_txfm_ = GET_PARAM(0);
     62     size_ = GET_PARAM(1);
     63     bit_depth_ = GET_PARAM(2);
     64   }
     65 
     66   virtual void TearDown() { libvpx_test::ClearSystemState(); }
     67 
     68  protected:
     69   void RunTest() {
     70     ACMRandom rnd(ACMRandom::DeterministicSeed());
     71     const int16_t maxvalue =
     72         clip_pixel_highbd(std::numeric_limits<int16_t>::max(), bit_depth_);
     73     const int16_t minvalue = -maxvalue;
     74     Buffer<int16_t> input_block =
     75         Buffer<int16_t>(size_, size_, 8, size_ == 4 ? 0 : 16);
     76     ASSERT_TRUE(input_block.Init());
     77     Buffer<tran_low_t> output_block = Buffer<tran_low_t>(size_, size_, 0, 16);
     78     ASSERT_TRUE(output_block.Init());
     79 
     80     for (int i = 0; i < 100; ++i) {
     81       if (i == 0) {
     82         input_block.Set(maxvalue);
     83       } else if (i == 1) {
     84         input_block.Set(minvalue);
     85       } else {
     86         input_block.Set(&rnd, minvalue, maxvalue);
     87       }
     88 
     89       ASM_REGISTER_STATE_CHECK(fwd_txfm_(input_block.TopLeftPixel(),
     90                                          output_block.TopLeftPixel(),
     91                                          input_block.stride()));
     92 
     93       EXPECT_EQ(partial_fdct_ref(input_block, size_),
     94                 output_block.TopLeftPixel()[0]);
     95     }
     96   }
     97 
     98   PartialFdctFunc fwd_txfm_;
     99   vpx_bit_depth_t bit_depth_;
    100   int size_;
    101 };
    102 
    103 TEST_P(PartialFdctTest, PartialFdctTest) { RunTest(); }
    104 
    105 #if CONFIG_VP9_HIGHBITDEPTH
    106 INSTANTIATE_TEST_CASE_P(
    107     C, PartialFdctTest,
    108     ::testing::Values(make_tuple(&vpx_highbd_fdct32x32_1_c, 32, VPX_BITS_12),
    109                       make_tuple(&vpx_highbd_fdct32x32_1_c, 32, VPX_BITS_10),
    110                       make_tuple(&vpx_fdct32x32_1_c, 32, VPX_BITS_8),
    111                       make_tuple(&vpx_highbd_fdct16x16_1_c, 16, VPX_BITS_12),
    112                       make_tuple(&vpx_highbd_fdct16x16_1_c, 16, VPX_BITS_10),
    113                       make_tuple(&vpx_fdct16x16_1_c, 16, VPX_BITS_8),
    114                       make_tuple(&vpx_highbd_fdct8x8_1_c, 8, VPX_BITS_12),
    115                       make_tuple(&vpx_highbd_fdct8x8_1_c, 8, VPX_BITS_10),
    116                       make_tuple(&vpx_fdct8x8_1_c, 8, VPX_BITS_8),
    117                       make_tuple(&vpx_fdct4x4_1_c, 4, VPX_BITS_8)));
    118 #else
    119 INSTANTIATE_TEST_CASE_P(
    120     C, PartialFdctTest,
    121     ::testing::Values(make_tuple(&vpx_fdct32x32_1_c, 32, VPX_BITS_8),
    122                       make_tuple(&vpx_fdct16x16_1_c, 16, VPX_BITS_8),
    123                       make_tuple(&vpx_fdct8x8_1_c, 8, VPX_BITS_8),
    124                       make_tuple(&vpx_fdct4x4_1_c, 4, VPX_BITS_8)));
    125 #endif  // CONFIG_VP9_HIGHBITDEPTH
    126 
    127 #if HAVE_SSE2
    128 INSTANTIATE_TEST_CASE_P(
    129     SSE2, PartialFdctTest,
    130     ::testing::Values(make_tuple(&vpx_fdct32x32_1_sse2, 32, VPX_BITS_8),
    131                       make_tuple(&vpx_fdct16x16_1_sse2, 16, VPX_BITS_8),
    132                       make_tuple(&vpx_fdct8x8_1_sse2, 8, VPX_BITS_8),
    133                       make_tuple(&vpx_fdct4x4_1_sse2, 4, VPX_BITS_8)));
    134 #endif  // HAVE_SSE2
    135 
    136 #if HAVE_NEON
    137 #if CONFIG_VP9_HIGHBITDEPTH
    138 INSTANTIATE_TEST_CASE_P(
    139     NEON, PartialFdctTest,
    140     ::testing::Values(make_tuple(&vpx_fdct32x32_1_neon, 32, VPX_BITS_8),
    141                       make_tuple(&vpx_fdct16x16_1_neon, 16, VPX_BITS_8),
    142                       make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_12),
    143                       make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_10),
    144                       make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_8),
    145                       make_tuple(&vpx_fdct4x4_1_neon, 4, VPX_BITS_8)));
    146 #else
    147 INSTANTIATE_TEST_CASE_P(
    148     NEON, PartialFdctTest,
    149     ::testing::Values(make_tuple(&vpx_fdct32x32_1_neon, 32, VPX_BITS_8),
    150                       make_tuple(&vpx_fdct16x16_1_neon, 16, VPX_BITS_8),
    151                       make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_8),
    152                       make_tuple(&vpx_fdct4x4_1_neon, 4, VPX_BITS_8)));
    153 #endif  // CONFIG_VP9_HIGHBITDEPTH
    154 #endif  // HAVE_NEON
    155 
    156 #if HAVE_MSA
    157 #if CONFIG_VP9_HIGHBITDEPTH
    158 INSTANTIATE_TEST_CASE_P(MSA, PartialFdctTest,
    159                         ::testing::Values(make_tuple(&vpx_fdct8x8_1_msa, 8,
    160                                                      VPX_BITS_8)));
    161 #else   // !CONFIG_VP9_HIGHBITDEPTH
    162 INSTANTIATE_TEST_CASE_P(
    163     MSA, PartialFdctTest,
    164     ::testing::Values(make_tuple(&vpx_fdct32x32_1_msa, 32, VPX_BITS_8),
    165                       make_tuple(&vpx_fdct16x16_1_msa, 16, VPX_BITS_8),
    166                       make_tuple(&vpx_fdct8x8_1_msa, 8, VPX_BITS_8)));
    167 #endif  // CONFIG_VP9_HIGHBITDEPTH
    168 #endif  // HAVE_MSA
    169 }  // namespace
    170