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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 |
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| 36 }; | 36 }; |
| 37 #define ADD_METHOD(x) { #x, skia::ImageOperations::RESIZE_##x } | 37 #define ADD_METHOD(x) { #x, skia::ImageOperations::RESIZE_##x } |
| 38 const StringMethodPair resize_methods[] = { | 38 const StringMethodPair resize_methods[] = { |
| 39 ADD_METHOD(GOOD), | 39 ADD_METHOD(GOOD), |
| 40 ADD_METHOD(BETTER), | 40 ADD_METHOD(BETTER), |
| 41 ADD_METHOD(BEST), | 41 ADD_METHOD(BEST), |
| 42 ADD_METHOD(BOX), | 42 ADD_METHOD(BOX), |
| 43 ADD_METHOD(HAMMING1), | 43 ADD_METHOD(HAMMING1), |
| 44 ADD_METHOD(LANCZOS2), | 44 ADD_METHOD(LANCZOS2), |
| 45 ADD_METHOD(LANCZOS3), | 45 ADD_METHOD(LANCZOS3), |
| 46 ADD_METHOD(SUBPIXEL) | |
| 47 }; | 46 }; |
| 48 | 47 |
| 49 // converts a string into one of the image operation method to resize. | 48 // converts a string into one of the image operation method to resize. |
| 50 // Returns true on success, false otherwise. | 49 // Returns true on success, false otherwise. |
| 51 bool StringToMethod(const std::string& arg, | 50 bool StringToMethod(const std::string& arg, |
| 52 skia::ImageOperations::ResizeMethod* method) { | 51 skia::ImageOperations::ResizeMethod* method) { |
| 53 for (size_t i = 0; i < arraysize(resize_methods); ++i) { | 52 for (size_t i = 0; i < arraysize(resize_methods); ++i) { |
| 54 if (base::strcasecmp(arg.c_str(), resize_methods[i].name) == 0) { | 53 if (base::strcasecmp(arg.c_str(), resize_methods[i].name) == 0) { |
| 55 *method = resize_methods[i].method; | 54 *method = resize_methods[i].method; |
| 56 return true; | 55 return true; |
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| 282 return 1; | 281 return 1; |
| 283 } | 282 } |
| 284 | 283 |
| 285 if (!bench.Run()) { | 284 if (!bench.Run()) { |
| 286 printf("Failed to run benchmark\n"); | 285 printf("Failed to run benchmark\n"); |
| 287 return 1; | 286 return 1; |
| 288 } | 287 } |
| 289 | 288 |
| 290 return 0; | 289 return 0; |
| 291 } | 290 } |
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