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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "components/favicon_base/select_favicon_frames.h" | 5 #include "components/favicon_base/select_favicon_frames.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 #include <cmath> | 8 #include <cmath> |
| 9 #include <limits> | 9 #include <limits> |
| 10 #include <map> | 10 #include <map> |
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| 28 if (area > max_area) { | 28 if (area > max_area) { |
| 29 max_area = area; | 29 max_area = area; |
| 30 max_index = i; | 30 max_index = i; |
| 31 } | 31 } |
| 32 } | 32 } |
| 33 return max_index; | 33 return max_index; |
| 34 } | 34 } |
| 35 | 35 |
| 36 SkBitmap SampleNearestNeighbor(const SkBitmap& contents, int desired_size) { | 36 SkBitmap SampleNearestNeighbor(const SkBitmap& contents, int desired_size) { |
| 37 SkBitmap bitmap; | 37 SkBitmap bitmap; |
| 38 bitmap.setConfig(SkBitmap::kARGB_8888_Config, desired_size, desired_size); | 38 bitmap.allocN32Pixels(desired_size, desired_size); |
| 39 bitmap.allocPixels(); | |
| 40 if (!contents.isOpaque()) | 39 if (!contents.isOpaque()) |
| 41 bitmap.eraseARGB(0, 0, 0, 0); | 40 bitmap.eraseARGB(0, 0, 0, 0); |
| 42 | 41 |
| 43 { | 42 { |
| 44 SkCanvas canvas(bitmap); | 43 SkCanvas canvas(bitmap); |
| 45 SkRect dest(SkRect::MakeWH(desired_size, desired_size)); | 44 SkRect dest(SkRect::MakeWH(desired_size, desired_size)); |
| 46 canvas.drawBitmapRect(contents, NULL, dest); | 45 canvas.drawBitmapRect(contents, NULL, dest); |
| 47 } | 46 } |
| 48 | 47 |
| 49 return bitmap; | 48 return bitmap; |
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| 270 // GetCandidateIndicesWithBestScores() will return duplicate indices if the | 269 // GetCandidateIndicesWithBestScores() will return duplicate indices if the |
| 271 // bitmap data with |frame_pixel_sizes[index]| should be used for multiple | 270 // bitmap data with |frame_pixel_sizes[index]| should be used for multiple |
| 272 // scale factors. Remove duplicates here such that |best_indices| contains | 271 // scale factors. Remove duplicates here such that |best_indices| contains |
| 273 // no duplicates. | 272 // no duplicates. |
| 274 if (already_added.find(index) == already_added.end()) { | 273 if (already_added.find(index) == already_added.end()) { |
| 275 already_added.insert(index); | 274 already_added.insert(index); |
| 276 best_indices->push_back(index); | 275 best_indices->push_back(index); |
| 277 } | 276 } |
| 278 } | 277 } |
| 279 } | 278 } |
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