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 "third_party/googletest/src/include/gtest/gtest.h" 12 13 #include "./vpx_dsp_rtcd.h" 14 15 #include "test/acm_random.h" 16 #include "test/buffer.h" 17 #include "test/register_state_check.h" 18 #include "vpx_ports/vpx_timer.h" 19 20 namespace { 21 22 using ::libvpx_test::ACMRandom; 23 using ::libvpx_test::Buffer; 24 25 typedef void (*AvgPredFunc)(uint8_t *a, const uint8_t *b, int w, int h, 26 const uint8_t *c, int c_stride); 27 28 uint8_t avg_with_rounding(uint8_t a, uint8_t b) { return (a + b + 1) >> 1; } 29 30 void reference_pred(const Buffer<uint8_t> &pred, const Buffer<uint8_t> &ref, 31 int width, int height, Buffer<uint8_t> *avg) { 32 for (int y = 0; y < height; ++y) { 33 for (int x = 0; x < width; ++x) { 34 avg->TopLeftPixel()[y * avg->stride() + x] = 35 avg_with_rounding(pred.TopLeftPixel()[y * pred.stride() + x], 36 ref.TopLeftPixel()[y * ref.stride() + x]); 37 } 38 } 39 } 40 41 class AvgPredTest : public ::testing::TestWithParam<AvgPredFunc> { 42 public: 43 virtual void SetUp() { 44 avg_pred_func_ = GetParam(); 45 rnd_.Reset(ACMRandom::DeterministicSeed()); 46 } 47 48 protected: 49 AvgPredFunc avg_pred_func_; 50 ACMRandom rnd_; 51 }; 52 53 TEST_P(AvgPredTest, SizeCombinations) { 54 // This is called as part of the sub pixel variance. As such it must be one of 55 // the variance block sizes. 56 57 for (int width_pow = 2; width_pow <= 6; ++width_pow) { 58 for (int height_pow = width_pow - 1; height_pow <= width_pow + 1; 59 ++height_pow) { 60 // Don't test 4x2 or 64x128 61 if (height_pow == 1 || height_pow == 7) continue; 62 63 // The sse2 special-cases when ref width == stride, so make sure to test 64 // it. 65 for (int ref_padding = 0; ref_padding < 2; ref_padding++) { 66 const int width = 1 << width_pow; 67 const int height = 1 << height_pow; 68 // Only the reference buffer may have a stride not equal to width. 69 Buffer<uint8_t> ref = 70 Buffer<uint8_t>(width, height, ref_padding ? 8 : 0); 71 ASSERT_TRUE(ref.Init()); 72 Buffer<uint8_t> pred = Buffer<uint8_t>(width, height, 0, 16); 73 ASSERT_TRUE(pred.Init()); 74 Buffer<uint8_t> avg_ref = Buffer<uint8_t>(width, height, 0, 16); 75 ASSERT_TRUE(avg_ref.Init()); 76 Buffer<uint8_t> avg_chk = Buffer<uint8_t>(width, height, 0, 16); 77 ASSERT_TRUE(avg_chk.Init()); 78 79 ref.Set(&rnd_, &ACMRandom::Rand8); 80 pred.Set(&rnd_, &ACMRandom::Rand8); 81 82 reference_pred(pred, ref, width, height, &avg_ref); 83 ASM_REGISTER_STATE_CHECK( 84 avg_pred_func_(avg_chk.TopLeftPixel(), pred.TopLeftPixel(), width, 85 height, ref.TopLeftPixel(), ref.stride())); 86 87 EXPECT_TRUE(avg_chk.CheckValues(avg_ref)); 88 if (HasFailure()) { 89 printf("Width: %d Height: %d\n", width, height); 90 avg_chk.PrintDifference(avg_ref); 91 return; 92 } 93 } 94 } 95 } 96 } 97 98 TEST_P(AvgPredTest, CompareReferenceRandom) { 99 const int width = 64; 100 const int height = 32; 101 Buffer<uint8_t> ref = Buffer<uint8_t>(width, height, 8); 102 ASSERT_TRUE(ref.Init()); 103 Buffer<uint8_t> pred = Buffer<uint8_t>(width, height, 0, 16); 104 ASSERT_TRUE(pred.Init()); 105 Buffer<uint8_t> avg_ref = Buffer<uint8_t>(width, height, 0, 16); 106 ASSERT_TRUE(avg_ref.Init()); 107 Buffer<uint8_t> avg_chk = Buffer<uint8_t>(width, height, 0, 16); 108 ASSERT_TRUE(avg_chk.Init()); 109 110 for (int i = 0; i < 500; ++i) { 111 ref.Set(&rnd_, &ACMRandom::Rand8); 112 pred.Set(&rnd_, &ACMRandom::Rand8); 113 114 reference_pred(pred, ref, width, height, &avg_ref); 115 ASM_REGISTER_STATE_CHECK(avg_pred_func_(avg_chk.TopLeftPixel(), 116 pred.TopLeftPixel(), width, height, 117 ref.TopLeftPixel(), ref.stride())); 118 EXPECT_TRUE(avg_chk.CheckValues(avg_ref)); 119 if (HasFailure()) { 120 printf("Width: %d Height: %d\n", width, height); 121 avg_chk.PrintDifference(avg_ref); 122 return; 123 } 124 } 125 } 126 127 TEST_P(AvgPredTest, DISABLED_Speed) { 128 for (int width_pow = 2; width_pow <= 6; ++width_pow) { 129 for (int height_pow = width_pow - 1; height_pow <= width_pow + 1; 130 ++height_pow) { 131 // Don't test 4x2 or 64x128 132 if (height_pow == 1 || height_pow == 7) continue; 133 134 for (int ref_padding = 0; ref_padding < 2; ref_padding++) { 135 const int width = 1 << width_pow; 136 const int height = 1 << height_pow; 137 Buffer<uint8_t> ref = 138 Buffer<uint8_t>(width, height, ref_padding ? 8 : 0); 139 ASSERT_TRUE(ref.Init()); 140 Buffer<uint8_t> pred = Buffer<uint8_t>(width, height, 0, 16); 141 ASSERT_TRUE(pred.Init()); 142 Buffer<uint8_t> avg = Buffer<uint8_t>(width, height, 0, 16); 143 ASSERT_TRUE(avg.Init()); 144 145 ref.Set(&rnd_, &ACMRandom::Rand8); 146 pred.Set(&rnd_, &ACMRandom::Rand8); 147 148 vpx_usec_timer timer; 149 vpx_usec_timer_start(&timer); 150 for (int i = 0; i < 10000000 / (width * height); ++i) { 151 avg_pred_func_(avg.TopLeftPixel(), pred.TopLeftPixel(), width, height, 152 ref.TopLeftPixel(), ref.stride()); 153 } 154 vpx_usec_timer_mark(&timer); 155 156 const int elapsed_time = 157 static_cast<int>(vpx_usec_timer_elapsed(&timer)); 158 printf("Average Test (ref_padding: %d) %dx%d time: %5d us\n", 159 ref_padding, width, height, elapsed_time); 160 } 161 } 162 } 163 } 164 165 INSTANTIATE_TEST_CASE_P(C, AvgPredTest, 166 ::testing::Values(&vpx_comp_avg_pred_c)); 167 168 #if HAVE_SSE2 169 INSTANTIATE_TEST_CASE_P(SSE2, AvgPredTest, 170 ::testing::Values(&vpx_comp_avg_pred_sse2)); 171 #endif // HAVE_SSE2 172 173 #if HAVE_NEON 174 INSTANTIATE_TEST_CASE_P(NEON, AvgPredTest, 175 ::testing::Values(&vpx_comp_avg_pred_neon)); 176 #endif // HAVE_NEON 177 178 #if HAVE_VSX 179 INSTANTIATE_TEST_CASE_P(VSX, AvgPredTest, 180 ::testing::Values(&vpx_comp_avg_pred_vsx)); 181 #endif // HAVE_VSX 182 } // namespace 183
