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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 #include <algorithm> | 5 #include <algorithm> |
| 6 #include <iomanip> | 6 #include <iomanip> |
| 7 #include <vector> | 7 #include <vector> |
| 8 | 8 |
| 9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
| 10 #include "base/file_util.h" | 10 #include "base/file_util.h" |
| 11 #include "base/string_util.h" | 11 #include "base/string_util.h" |
| 12 #include "gfx/codec/png_codec.h" | |
| 13 #include "skia/ext/image_operations.h" | 12 #include "skia/ext/image_operations.h" |
| 14 #include "testing/gtest/include/gtest/gtest.h" | 13 #include "testing/gtest/include/gtest/gtest.h" |
| 15 #include "third_party/skia/include/core/SkBitmap.h" | 14 #include "third_party/skia/include/core/SkBitmap.h" |
| 16 #include "third_party/skia/include/core/SkRect.h" | 15 #include "third_party/skia/include/core/SkRect.h" |
| 16 #include "ui/gfx/codec/png_codec.h" |
| 17 | 17 |
| 18 namespace { | 18 namespace { |
| 19 | 19 |
| 20 // Computes the average pixel value for the given range, inclusive. | 20 // Computes the average pixel value for the given range, inclusive. |
| 21 uint32_t AveragePixel(const SkBitmap& bmp, | 21 uint32_t AveragePixel(const SkBitmap& bmp, |
| 22 int x_min, int x_max, | 22 int x_min, int x_max, |
| 23 int y_min, int y_max) { | 23 int y_min, int y_max) { |
| 24 float accum[4] = {0, 0, 0, 0}; | 24 float accum[4] = {0, 0, 0, 0}; |
| 25 int count = 0; | 25 int count = 0; |
| 26 for (int y = y_min; y <= y_max; y++) { | 26 for (int y = y_min; y <= y_max; y++) { |
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| 634 ADD_FAILURE() << "Maximum observed color distance: " | 634 ADD_FAILURE() << "Maximum observed color distance: " |
| 635 << max_observed_distance; | 635 << max_observed_distance; |
| 636 | 636 |
| 637 #if DEBUG_BITMAP_GENERATION | 637 #if DEBUG_BITMAP_GENERATION |
| 638 SaveBitmapToPNG(src, "/tmp/CompareLanczosMethods_source.png"); | 638 SaveBitmapToPNG(src, "/tmp/CompareLanczosMethods_source.png"); |
| 639 SaveBitmapToPNG(dest_l2, "/tmp/CompareLanczosMethods_lanczos2.png"); | 639 SaveBitmapToPNG(dest_l2, "/tmp/CompareLanczosMethods_lanczos2.png"); |
| 640 SaveBitmapToPNG(dest_l3, "/tmp/CompareLanczosMethods_lanczos3.png"); | 640 SaveBitmapToPNG(dest_l3, "/tmp/CompareLanczosMethods_lanczos3.png"); |
| 641 #endif // #if DEBUG_BITMAP_GENERATION | 641 #endif // #if DEBUG_BITMAP_GENERATION |
| 642 } | 642 } |
| 643 } | 643 } |
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