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comparison: media/libyuv/unit_test/scale_argb_test.cc
media/libyuv/unit_test/scale_argb_test.cc
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| -1:000000000000 | 0:e12b13a37413 |
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| 1 /* | |
| 2 * Copyright 2011 The LibYuv 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 <stdlib.h> | |
| 12 #include <time.h> | |
| 13 | |
| 14 #include "libyuv/cpu_id.h" | |
| 15 #include "libyuv/scale_argb.h" | |
| 16 #include "libyuv/row.h" | |
| 17 #include "../unit_test/unit_test.h" | |
| 18 | |
| 19 namespace libyuv { | |
| 20 | |
| 21 // Test scaling with C vs Opt and return maximum pixel difference. 0 = exact. | |
| 22 static int ARGBTestFilter(int src_width, int src_height, | |
| 23 int dst_width, int dst_height, | |
| 24 FilterMode f, int benchmark_iterations) { | |
| 25 const int b = 128; | |
| 26 int i, j; | |
| 27 int src_argb_plane_size = (Abs(src_width) + b * 2) * | |
| 28 (Abs(src_height) + b * 2) * 4; | |
| 29 int src_stride_argb = (b * 2 + Abs(src_width)) * 4; | |
| 30 | |
| 31 align_buffer_64(src_argb, src_argb_plane_size); | |
| 32 srandom(time(NULL)); | |
| 33 MemRandomize(src_argb, src_argb_plane_size); | |
| 34 | |
| 35 int dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4; | |
| 36 int dst_stride_argb = (b * 2 + dst_width) * 4; | |
| 37 | |
| 38 align_buffer_64(dst_argb_c, dst_argb_plane_size); | |
| 39 align_buffer_64(dst_argb_opt, dst_argb_plane_size); | |
| 40 memset(dst_argb_c, 2, dst_argb_plane_size); | |
| 41 memset(dst_argb_opt, 3, dst_argb_plane_size); | |
| 42 | |
| 43 // Warm up both versions for consistent benchmarks. | |
| 44 MaskCpuFlags(0); // Disable all CPU optimization. | |
| 45 ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 46 src_width, src_height, | |
| 47 dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 48 dst_width, dst_height, f); | |
| 49 MaskCpuFlags(-1); // Enable all CPU optimization. | |
| 50 ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 51 src_width, src_height, | |
| 52 dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 53 dst_width, dst_height, f); | |
| 54 | |
| 55 MaskCpuFlags(0); // Disable all CPU optimization. | |
| 56 double c_time = get_time(); | |
| 57 ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 58 src_width, src_height, | |
| 59 dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 60 dst_width, dst_height, f); | |
| 61 | |
| 62 c_time = (get_time() - c_time); | |
| 63 | |
| 64 MaskCpuFlags(-1); // Enable all CPU optimization. | |
| 65 double opt_time = get_time(); | |
| 66 for (i = 0; i < benchmark_iterations; ++i) { | |
| 67 ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 68 src_width, src_height, | |
| 69 dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 70 dst_width, dst_height, f); | |
| 71 } | |
| 72 opt_time = (get_time() - opt_time) / benchmark_iterations; | |
| 73 | |
| 74 // Report performance of C vs OPT | |
| 75 printf("filter %d - %8d us C - %8d us OPT\n", | |
| 76 f, static_cast<int>(c_time * 1e6), static_cast<int>(opt_time * 1e6)); | |
| 77 | |
| 78 // C version may be a little off from the optimized. Order of | |
| 79 // operations may introduce rounding somewhere. So do a difference | |
| 80 // of the buffers and look to see that the max difference isn't | |
| 81 // over 2. | |
| 82 int max_diff = 0; | |
| 83 for (i = b; i < (dst_height + b); ++i) { | |
| 84 for (j = b * 4; j < (dst_width + b) * 4; ++j) { | |
| 85 int abs_diff = Abs(dst_argb_c[(i * dst_stride_argb) + j] - | |
| 86 dst_argb_opt[(i * dst_stride_argb) + j]); | |
| 87 if (abs_diff > max_diff) { | |
| 88 max_diff = abs_diff; | |
| 89 } | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 free_aligned_buffer_64(dst_argb_c); | |
| 94 free_aligned_buffer_64(dst_argb_opt); | |
| 95 free_aligned_buffer_64(src_argb); | |
| 96 return max_diff; | |
| 97 } | |
| 98 | |
| 99 static const int kTileX = 8; | |
| 100 static const int kTileY = 8; | |
| 101 | |
| 102 static int TileARGBScale(const uint8* src_argb, int src_stride_argb, | |
| 103 int src_width, int src_height, | |
| 104 uint8* dst_argb, int dst_stride_argb, | |
| 105 int dst_width, int dst_height, | |
| 106 FilterMode filtering) { | |
| 107 for (int y = 0; y < dst_height; y += kTileY) { | |
| 108 for (int x = 0; x < dst_width; x += kTileX) { | |
| 109 int clip_width = kTileX; | |
| 110 if (x + clip_width > dst_width) { | |
| 111 clip_width = dst_width - x; | |
| 112 } | |
| 113 int clip_height = kTileY; | |
| 114 if (y + clip_height > dst_height) { | |
| 115 clip_height = dst_height - y; | |
| 116 } | |
| 117 int r = ARGBScaleClip(src_argb, src_stride_argb, | |
| 118 src_width, src_height, | |
| 119 dst_argb, dst_stride_argb, | |
| 120 dst_width, dst_height, | |
| 121 x, y, clip_width, clip_height, filtering); | |
| 122 if (r) { | |
| 123 return r; | |
| 124 } | |
| 125 } | |
| 126 } | |
| 127 return 0; | |
| 128 } | |
| 129 | |
| 130 static int ARGBClipTestFilter(int src_width, int src_height, | |
| 131 int dst_width, int dst_height, | |
| 132 FilterMode f, int benchmark_iterations) { | |
| 133 const int b = 128; | |
| 134 int src_argb_plane_size = (Abs(src_width) + b * 2) * | |
| 135 (Abs(src_height) + b * 2) * 4; | |
| 136 int src_stride_argb = (b * 2 + Abs(src_width)) * 4; | |
| 137 | |
| 138 align_buffer_64(src_argb, src_argb_plane_size); | |
| 139 memset(src_argb, 1, src_argb_plane_size); | |
| 140 | |
| 141 int dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4; | |
| 142 int dst_stride_argb = (b * 2 + dst_width) * 4; | |
| 143 | |
| 144 srandom(time(NULL)); | |
| 145 | |
| 146 int i, j; | |
| 147 for (i = b; i < (Abs(src_height) + b); ++i) { | |
| 148 for (j = b; j < (Abs(src_width) + b) * 4; ++j) { | |
| 149 src_argb[(i * src_stride_argb) + j] = (random() & 0xff); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 align_buffer_64(dst_argb_c, dst_argb_plane_size); | |
| 154 align_buffer_64(dst_argb_opt, dst_argb_plane_size); | |
| 155 memset(dst_argb_c, 2, dst_argb_plane_size); | |
| 156 memset(dst_argb_opt, 3, dst_argb_plane_size); | |
| 157 | |
| 158 // Do full image, no clipping. | |
| 159 double c_time = get_time(); | |
| 160 ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 161 src_width, src_height, | |
| 162 dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 163 dst_width, dst_height, f); | |
| 164 c_time = (get_time() - c_time); | |
| 165 | |
| 166 // Do tiled image, clipping scale to a tile at a time. | |
| 167 double opt_time = get_time(); | |
| 168 for (i = 0; i < benchmark_iterations; ++i) { | |
| 169 TileARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, | |
| 170 src_width, src_height, | |
| 171 dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb, | |
| 172 dst_width, dst_height, f); | |
| 173 } | |
| 174 opt_time = (get_time() - opt_time) / benchmark_iterations; | |
| 175 | |
| 176 // Report performance of Full vs Tiled. | |
| 177 printf("filter %d - %8d us Full - %8d us Tiled\n", | |
| 178 f, static_cast<int>(c_time * 1e6), static_cast<int>(opt_time * 1e6)); | |
| 179 | |
| 180 // Compare full scaled image vs tiled image. | |
| 181 int max_diff = 0; | |
| 182 for (i = b; i < (dst_height + b); ++i) { | |
| 183 for (j = b * 4; j < (dst_width + b) * 4; ++j) { | |
| 184 int abs_diff = Abs(dst_argb_c[(i * dst_stride_argb) + j] - | |
| 185 dst_argb_opt[(i * dst_stride_argb) + j]); | |
| 186 if (abs_diff > max_diff) { | |
| 187 max_diff = abs_diff; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 free_aligned_buffer_64(dst_argb_c); | |
| 193 free_aligned_buffer_64(dst_argb_opt); | |
| 194 free_aligned_buffer_64(src_argb); | |
| 195 return max_diff; | |
| 196 } | |
| 197 | |
| 198 #define TEST_FACTOR1(name, filter, hfactor, vfactor, max_diff) \ | |
| 199 TEST_F(libyuvTest, ARGBScaleDownBy##name##_##filter) { \ | |
| 200 int diff = ARGBTestFilter(benchmark_width_, benchmark_height_, \ | |
| 201 Abs(benchmark_width_) * hfactor, \ | |
| 202 Abs(benchmark_height_) * vfactor, \ | |
| 203 kFilter##filter, benchmark_iterations_); \ | |
| 204 EXPECT_LE(diff, max_diff); \ | |
| 205 } \ | |
| 206 TEST_F(libyuvTest, ARGBScaleDownClipBy##name##_##filter) { \ | |
| 207 int diff = ARGBClipTestFilter(benchmark_width_, benchmark_height_, \ | |
| 208 Abs(benchmark_width_) * hfactor, \ | |
| 209 Abs(benchmark_height_) * vfactor, \ | |
| 210 kFilter##filter, benchmark_iterations_); \ | |
| 211 EXPECT_LE(diff, max_diff); \ | |
| 212 } | |
| 213 | |
| 214 // Test a scale factor with 2 filters. Expect unfiltered to be exact, but | |
| 215 // filtering is different fixed point implementations for SSSE3, Neon and C. | |
| 216 #define TEST_FACTOR(name, hfactor, vfactor) \ | |
| 217 TEST_FACTOR1(name, None, hfactor, vfactor, 2) \ | |
| 218 TEST_FACTOR1(name, Linear, hfactor, vfactor, 2) \ | |
| 219 TEST_FACTOR1(name, Bilinear, hfactor, vfactor, 2) \ | |
| 220 TEST_FACTOR1(name, Box, hfactor, vfactor, 2) | |
| 221 | |
| 222 TEST_FACTOR(2, 1 / 2, 1 / 2) | |
| 223 TEST_FACTOR(4, 1 / 4, 1 / 4) | |
| 224 TEST_FACTOR(8, 1 / 8, 1 / 8) | |
| 225 TEST_FACTOR(3by4, 3 / 4, 3 / 4) | |
| 226 #undef TEST_FACTOR1 | |
| 227 #undef TEST_FACTOR | |
| 228 | |
| 229 #define TEST_SCALETO1(name, width, height, filter, max_diff) \ | |
| 230 TEST_F(libyuvTest, name##To##width##x##height##_##filter) { \ | |
| 231 int diff = ARGBTestFilter(benchmark_width_, benchmark_height_, \ | |
| 232 width, height, \ | |
| 233 kFilter##filter, benchmark_iterations_); \ | |
| 234 EXPECT_LE(diff, max_diff); \ | |
| 235 } \ | |
| 236 TEST_F(libyuvTest, name##From##width##x##height##_##filter) { \ | |
| 237 int diff = ARGBTestFilter(width, height, \ | |
| 238 Abs(benchmark_width_), Abs(benchmark_height_), \ | |
| 239 kFilter##filter, benchmark_iterations_); \ | |
| 240 EXPECT_LE(diff, max_diff); \ | |
| 241 } \ | |
| 242 TEST_F(libyuvTest, name##ClipTo##width##x##height##_##filter) { \ | |
| 243 int diff = ARGBClipTestFilter(benchmark_width_, benchmark_height_, \ | |
| 244 width, height, \ | |
| 245 kFilter##filter, benchmark_iterations_); \ | |
| 246 EXPECT_LE(diff, max_diff); \ | |
| 247 } \ | |
| 248 TEST_F(libyuvTest, name##ClipFrom##width##x##height##_##filter) { \ | |
| 249 int diff = ARGBClipTestFilter(width, height, \ | |
| 250 Abs(benchmark_width_), Abs(benchmark_height_), \ | |
| 251 kFilter##filter, benchmark_iterations_); \ | |
| 252 EXPECT_LE(diff, max_diff); \ | |
| 253 } | |
| 254 | |
| 255 /// Test scale to a specified size with all 4 filters. | |
| 256 #define TEST_SCALETO(name, width, height) \ | |
| 257 TEST_SCALETO1(name, width, height, None, 0) \ | |
| 258 TEST_SCALETO1(name, width, height, Linear, 3) \ | |
| 259 TEST_SCALETO1(name, width, height, Bilinear, 3) \ | |
| 260 TEST_SCALETO1(name, width, height, Box, 3) | |
| 261 | |
| 262 TEST_SCALETO(ARGBScale, 1, 1) | |
| 263 TEST_SCALETO(ARGBScale, 320, 240) | |
| 264 TEST_SCALETO(ARGBScale, 352, 288) | |
| 265 TEST_SCALETO(ARGBScale, 640, 360) | |
| 266 TEST_SCALETO(ARGBScale, 1280, 720) | |
| 267 #undef TEST_SCALETO1 | |
| 268 #undef TEST_SCALETO | |
| 269 | |
| 270 } // namespace libyuv |
