1/* 2 * Copyright (c) 2013 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 "third_party/googletest/src/include/gtest/gtest.h" 16#include "test/acm_random.h" 17#include "test/clear_system_state.h" 18#include "test/register_state_check.h" 19#include "test/util.h" 20 21#include "./vp9_rtcd.h" 22#include "vp9/common/vp9_blockd.h" 23#include "vp9/common/vp9_scan.h" 24#include "vpx/vpx_integer.h" 25 26using libvpx_test::ACMRandom; 27 28namespace { 29typedef void (*FwdTxfmFunc)(const int16_t *in, tran_low_t *out, int stride); 30typedef void (*InvTxfmFunc)(const tran_low_t *in, uint8_t *out, int stride); 31typedef std::tr1::tuple<FwdTxfmFunc, 32 InvTxfmFunc, 33 InvTxfmFunc, 34 TX_SIZE, int> PartialInvTxfmParam; 35const int kMaxNumCoeffs = 1024; 36class PartialIDctTest : public ::testing::TestWithParam<PartialInvTxfmParam> { 37 public: 38 virtual ~PartialIDctTest() {} 39 virtual void SetUp() { 40 ftxfm_ = GET_PARAM(0); 41 full_itxfm_ = GET_PARAM(1); 42 partial_itxfm_ = GET_PARAM(2); 43 tx_size_ = GET_PARAM(3); 44 last_nonzero_ = GET_PARAM(4); 45 } 46 47 virtual void TearDown() { libvpx_test::ClearSystemState(); } 48 49 protected: 50 int last_nonzero_; 51 TX_SIZE tx_size_; 52 FwdTxfmFunc ftxfm_; 53 InvTxfmFunc full_itxfm_; 54 InvTxfmFunc partial_itxfm_; 55}; 56 57TEST_P(PartialIDctTest, RunQuantCheck) { 58 ACMRandom rnd(ACMRandom::DeterministicSeed()); 59 int size; 60 switch (tx_size_) { 61 case TX_4X4: 62 size = 4; 63 break; 64 case TX_8X8: 65 size = 8; 66 break; 67 case TX_16X16: 68 size = 16; 69 break; 70 case TX_32X32: 71 size = 32; 72 break; 73 default: 74 FAIL() << "Wrong Size!"; 75 break; 76 } 77 DECLARE_ALIGNED_ARRAY(16, tran_low_t, test_coef_block1, kMaxNumCoeffs); 78 DECLARE_ALIGNED_ARRAY(16, tran_low_t, test_coef_block2, kMaxNumCoeffs); 79 DECLARE_ALIGNED_ARRAY(16, uint8_t, dst1, kMaxNumCoeffs); 80 DECLARE_ALIGNED_ARRAY(16, uint8_t, dst2, kMaxNumCoeffs); 81 82 const int count_test_block = 1000; 83 const int block_size = size * size; 84 85 DECLARE_ALIGNED_ARRAY(16, int16_t, input_extreme_block, kMaxNumCoeffs); 86 DECLARE_ALIGNED_ARRAY(16, tran_low_t, output_ref_block, kMaxNumCoeffs); 87 88 int max_error = 0; 89 for (int i = 0; i < count_test_block; ++i) { 90 // clear out destination buffer 91 memset(dst1, 0, sizeof(*dst1) * block_size); 92 memset(dst2, 0, sizeof(*dst2) * block_size); 93 memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size); 94 memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size); 95 96 ACMRandom rnd(ACMRandom::DeterministicSeed()); 97 98 for (int i = 0; i < count_test_block; ++i) { 99 // Initialize a test block with input range [-255, 255]. 100 if (i == 0) { 101 for (int j = 0; j < block_size; ++j) 102 input_extreme_block[j] = 255; 103 } else if (i == 1) { 104 for (int j = 0; j < block_size; ++j) 105 input_extreme_block[j] = -255; 106 } else { 107 for (int j = 0; j < block_size; ++j) { 108 input_extreme_block[j] = rnd.Rand8() % 2 ? 255 : -255; 109 } 110 } 111 112 ftxfm_(input_extreme_block, output_ref_block, size); 113 114 // quantization with maximum allowed step sizes 115 test_coef_block1[0] = (output_ref_block[0] / 1336) * 1336; 116 for (int j = 1; j < last_nonzero_; ++j) 117 test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]] 118 = (output_ref_block[j] / 1828) * 1828; 119 } 120 121 ASM_REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size)); 122 ASM_REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block1, dst2, size)); 123 124 for (int j = 0; j < block_size; ++j) { 125 const int diff = dst1[j] - dst2[j]; 126 const int error = diff * diff; 127 if (max_error < error) 128 max_error = error; 129 } 130 } 131 132 EXPECT_EQ(0, max_error) 133 << "Error: partial inverse transform produces different results"; 134} 135 136TEST_P(PartialIDctTest, ResultsMatch) { 137 ACMRandom rnd(ACMRandom::DeterministicSeed()); 138 int size; 139 switch (tx_size_) { 140 case TX_4X4: 141 size = 4; 142 break; 143 case TX_8X8: 144 size = 8; 145 break; 146 case TX_16X16: 147 size = 16; 148 break; 149 case TX_32X32: 150 size = 32; 151 break; 152 default: 153 FAIL() << "Wrong Size!"; 154 break; 155 } 156 DECLARE_ALIGNED_ARRAY(16, tran_low_t, test_coef_block1, kMaxNumCoeffs); 157 DECLARE_ALIGNED_ARRAY(16, tran_low_t, test_coef_block2, kMaxNumCoeffs); 158 DECLARE_ALIGNED_ARRAY(16, uint8_t, dst1, kMaxNumCoeffs); 159 DECLARE_ALIGNED_ARRAY(16, uint8_t, dst2, kMaxNumCoeffs); 160 const int count_test_block = 1000; 161 const int max_coeff = 32766 / 4; 162 const int block_size = size * size; 163 int max_error = 0; 164 for (int i = 0; i < count_test_block; ++i) { 165 // clear out destination buffer 166 memset(dst1, 0, sizeof(*dst1) * block_size); 167 memset(dst2, 0, sizeof(*dst2) * block_size); 168 memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size); 169 memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size); 170 int max_energy_leftover = max_coeff * max_coeff; 171 for (int j = 0; j < last_nonzero_; ++j) { 172 int16_t coef = static_cast<int16_t>(sqrt(1.0 * max_energy_leftover) * 173 (rnd.Rand16() - 32768) / 65536); 174 max_energy_leftover -= coef * coef; 175 if (max_energy_leftover < 0) { 176 max_energy_leftover = 0; 177 coef = 0; 178 } 179 test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]] = coef; 180 } 181 182 memcpy(test_coef_block2, test_coef_block1, 183 sizeof(*test_coef_block2) * block_size); 184 185 ASM_REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size)); 186 ASM_REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block2, dst2, size)); 187 188 for (int j = 0; j < block_size; ++j) { 189 const int diff = dst1[j] - dst2[j]; 190 const int error = diff * diff; 191 if (max_error < error) 192 max_error = error; 193 } 194 } 195 196 EXPECT_EQ(0, max_error) 197 << "Error: partial inverse transform produces different results"; 198} 199using std::tr1::make_tuple; 200 201INSTANTIATE_TEST_CASE_P( 202 C, PartialIDctTest, 203 ::testing::Values( 204 make_tuple(&vp9_fdct32x32_c, 205 &vp9_idct32x32_1024_add_c, 206 &vp9_idct32x32_34_add_c, 207 TX_32X32, 34), 208 make_tuple(&vp9_fdct32x32_c, 209 &vp9_idct32x32_1024_add_c, 210 &vp9_idct32x32_1_add_c, 211 TX_32X32, 1), 212 make_tuple(&vp9_fdct16x16_c, 213 &vp9_idct16x16_256_add_c, 214 &vp9_idct16x16_10_add_c, 215 TX_16X16, 10), 216 make_tuple(&vp9_fdct16x16_c, 217 &vp9_idct16x16_256_add_c, 218 &vp9_idct16x16_1_add_c, 219 TX_16X16, 1), 220 make_tuple(&vp9_fdct8x8_c, 221 &vp9_idct8x8_64_add_c, 222 &vp9_idct8x8_12_add_c, 223 TX_8X8, 12), 224 make_tuple(&vp9_fdct8x8_c, 225 &vp9_idct8x8_64_add_c, 226 &vp9_idct8x8_1_add_c, 227 TX_8X8, 1), 228 make_tuple(&vp9_fdct4x4_c, 229 &vp9_idct4x4_16_add_c, 230 &vp9_idct4x4_1_add_c, 231 TX_4X4, 1))); 232 233#if HAVE_NEON_ASM 234INSTANTIATE_TEST_CASE_P( 235 NEON, PartialIDctTest, 236 ::testing::Values( 237 make_tuple(&vp9_fdct32x32_c, 238 &vp9_idct32x32_1024_add_c, 239 &vp9_idct32x32_1_add_neon, 240 TX_32X32, 1), 241 make_tuple(&vp9_fdct16x16_c, 242 &vp9_idct16x16_256_add_c, 243 &vp9_idct16x16_10_add_neon, 244 TX_16X16, 10), 245 make_tuple(&vp9_fdct16x16_c, 246 &vp9_idct16x16_256_add_c, 247 &vp9_idct16x16_1_add_neon, 248 TX_16X16, 1), 249 make_tuple(&vp9_fdct8x8_c, 250 &vp9_idct8x8_64_add_c, 251 &vp9_idct8x8_12_add_neon, 252 TX_8X8, 12), 253 make_tuple(&vp9_fdct8x8_c, 254 &vp9_idct8x8_64_add_c, 255 &vp9_idct8x8_1_add_neon, 256 TX_8X8, 1), 257 make_tuple(&vp9_fdct4x4_c, 258 &vp9_idct4x4_16_add_c, 259 &vp9_idct4x4_1_add_neon, 260 TX_4X4, 1))); 261#endif 262 263#if HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH 264INSTANTIATE_TEST_CASE_P( 265 SSE2, PartialIDctTest, 266 ::testing::Values( 267 make_tuple(&vp9_fdct32x32_c, 268 &vp9_idct32x32_1024_add_c, 269 &vp9_idct32x32_34_add_sse2, 270 TX_32X32, 34), 271 make_tuple(&vp9_fdct32x32_c, 272 &vp9_idct32x32_1024_add_c, 273 &vp9_idct32x32_1_add_sse2, 274 TX_32X32, 1), 275 make_tuple(&vp9_fdct16x16_c, 276 &vp9_idct16x16_256_add_c, 277 &vp9_idct16x16_10_add_sse2, 278 TX_16X16, 10), 279 make_tuple(&vp9_fdct16x16_c, 280 &vp9_idct16x16_256_add_c, 281 &vp9_idct16x16_1_add_sse2, 282 TX_16X16, 1), 283 make_tuple(&vp9_fdct8x8_c, 284 &vp9_idct8x8_64_add_c, 285 &vp9_idct8x8_12_add_sse2, 286 TX_8X8, 12), 287 make_tuple(&vp9_fdct8x8_c, 288 &vp9_idct8x8_64_add_c, 289 &vp9_idct8x8_1_add_sse2, 290 TX_8X8, 1), 291 make_tuple(&vp9_fdct4x4_c, 292 &vp9_idct4x4_16_add_c, 293 &vp9_idct4x4_1_add_sse2, 294 TX_4X4, 1))); 295#endif 296 297#if HAVE_SSSE3 && ARCH_X86_64 && !CONFIG_VP9_HIGHBITDEPTH 298INSTANTIATE_TEST_CASE_P( 299 SSSE3_64, PartialIDctTest, 300 ::testing::Values( 301 make_tuple(&vp9_fdct8x8_c, 302 &vp9_idct8x8_64_add_c, 303 &vp9_idct8x8_12_add_ssse3, 304 TX_8X8, 12))); 305#endif 306 307#if HAVE_SSSE3 && !CONFIG_VP9_HIGHBITDEPTH 308INSTANTIATE_TEST_CASE_P( 309 SSSE3, PartialIDctTest, 310 ::testing::Values( 311 make_tuple(&vp9_fdct16x16_c, 312 &vp9_idct16x16_256_add_c, 313 &vp9_idct16x16_10_add_ssse3, 314 TX_16X16, 10))); 315#endif 316} // namespace 317