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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This small program is used to measure the performance of the various | 5 // This small program is used to measure the performance of the various |
| 6 // resize algorithms offered by the ImageOperations::Resize function. | 6 // resize algorithms offered by the ImageOperations::Resize function. |
| 7 // It will generate an empty source bitmap, and rescale it to specified | 7 // It will generate an empty source bitmap, and rescale it to specified |
| 8 // dimensions. It will repeat this operation multiple time to get more accurate | 8 // dimensions. It will repeat this operation multiple time to get more accurate |
| 9 // average throughput. Because it uses elapsed time to do its math, it is only | 9 // average throughput. Because it uses elapsed time to do its math, it is only |
| 10 // accurate on an idle system (but that approach was deemed more accurate | 10 // accurate on an idle system (but that approach was deemed more accurate |
| 11 // than the use of the times() call. | 11 // than the use of the times() call. |
| 12 // To present a single number in MB/s, it calculates the 'speed' by taking | 12 // To present a single number in MB/s, it calculates the 'speed' by taking |
| 13 // source surface + destination surface and dividing by the elapsed time. | 13 // source surface + destination surface and dividing by the elapsed time. |
| 14 // This number is somewhat reasonable way to measure this, given our current | 14 // This number is somewhat reasonable way to measure this, given our current |
| 15 // implementation which somewhat scales this way. | 15 // implementation which somewhat scales this way. |
| 16 | 16 |
| 17 #include <stddef.h> |
| 18 #include <stdint.h> |
| 17 #include <stdio.h> | 19 #include <stdio.h> |
| 18 | 20 |
| 19 #include "base/basictypes.h" | |
| 20 #include "base/command_line.h" | 21 #include "base/command_line.h" |
| 21 #include "base/format_macros.h" | 22 #include "base/format_macros.h" |
| 23 #include "base/macros.h" |
| 22 #include "base/strings/string_number_conversions.h" | 24 #include "base/strings/string_number_conversions.h" |
| 23 #include "base/strings/string_split.h" | 25 #include "base/strings/string_split.h" |
| 24 #include "base/strings/string_util.h" | 26 #include "base/strings/string_util.h" |
| 25 #include "base/strings/utf_string_conversions.h" | 27 #include "base/strings/utf_string_conversions.h" |
| 26 #include "base/time/time.h" | 28 #include "base/time/time.h" |
| 29 #include "build/build_config.h" |
| 27 #include "skia/ext/image_operations.h" | 30 #include "skia/ext/image_operations.h" |
| 28 #include "third_party/skia/include/core/SkBitmap.h" | 31 #include "third_party/skia/include/core/SkBitmap.h" |
| 29 #include "third_party/skia/include/core/SkRect.h" | 32 #include "third_party/skia/include/core/SkRect.h" |
| 30 | 33 |
| 31 namespace { | 34 namespace { |
| 32 | 35 |
| 33 struct StringMethodPair { | 36 struct StringMethodPair { |
| 34 const char* name; | 37 const char* name; |
| 35 skia::ImageOperations::ResizeMethod method; | 38 skia::ImageOperations::ResizeMethod method; |
| 36 }; | 39 }; |
| (...skipping 196 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 233 SkBitmap dest; | 236 SkBitmap dest; |
| 234 | 237 |
| 235 const base::TimeTicks start = base::TimeTicks::Now(); | 238 const base::TimeTicks start = base::TimeTicks::Now(); |
| 236 | 239 |
| 237 for (int i = 0; i < num_iterations_; ++i) { | 240 for (int i = 0; i < num_iterations_; ++i) { |
| 238 dest = skia::ImageOperations::Resize(source, | 241 dest = skia::ImageOperations::Resize(source, |
| 239 method_, | 242 method_, |
| 240 dest_.width(), dest_.height()); | 243 dest_.width(), dest_.height()); |
| 241 } | 244 } |
| 242 | 245 |
| 243 const int64 elapsed_us = (base::TimeTicks::Now() - start).InMicroseconds(); | 246 const int64_t elapsed_us = (base::TimeTicks::Now() - start).InMicroseconds(); |
| 244 | 247 |
| 245 const uint64 num_bytes = static_cast<uint64>(num_iterations_) * | 248 const uint64_t num_bytes = static_cast<uint64_t>(num_iterations_) * |
| 246 (GetBitmapSize(&source) + GetBitmapSize(&dest)); | 249 (GetBitmapSize(&source) + GetBitmapSize(&dest)); |
| 247 | 250 |
| 248 printf("%" PRIu64 " MB/s,\telapsed = %" PRIu64 " source=%d dest=%d\n", | 251 printf("%" PRIu64 " MB/s,\telapsed = %" PRIu64 " source=%d dest=%d\n", |
| 249 static_cast<uint64>(elapsed_us == 0 ? 0 : num_bytes / elapsed_us), | 252 static_cast<uint64_t>(elapsed_us == 0 ? 0 : num_bytes / elapsed_us), |
| 250 static_cast<uint64>(elapsed_us), | 253 static_cast<uint64_t>(elapsed_us), GetBitmapSize(&source), |
| 251 GetBitmapSize(&source), GetBitmapSize(&dest)); | 254 GetBitmapSize(&dest)); |
| 252 | 255 |
| 253 return true; | 256 return true; |
| 254 } | 257 } |
| 255 | 258 |
| 256 // A small class to automatically call Reset on the global command line to | 259 // A small class to automatically call Reset on the global command line to |
| 257 // avoid nasty valgrind complaints for the leak of the global command line. | 260 // avoid nasty valgrind complaints for the leak of the global command line. |
| 258 class CommandLineAutoReset { | 261 class CommandLineAutoReset { |
| 259 public: | 262 public: |
| 260 CommandLineAutoReset(int argc, char** argv) { | 263 CommandLineAutoReset(int argc, char** argv) { |
| 261 base::CommandLine::Init(argc, argv); | 264 base::CommandLine::Init(argc, argv); |
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| 280 return 1; | 283 return 1; |
| 281 } | 284 } |
| 282 | 285 |
| 283 if (!bench.Run()) { | 286 if (!bench.Run()) { |
| 284 printf("Failed to run benchmark\n"); | 287 printf("Failed to run benchmark\n"); |
| 285 return 1; | 288 return 1; |
| 286 } | 289 } |
| 287 | 290 |
| 288 return 0; | 291 return 0; |
| 289 } | 292 } |
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