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| 1 // Copyright (c) 2008, Google Inc. | 1 // Copyright (c) 2008, Google Inc. |
| 2 // All rights reserved. | 2 // All rights reserved. |
| 3 // | 3 // |
| 4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
| 6 // met: | 6 // met: |
| 7 // | 7 // |
| 8 // * Redistributions of source code must retain the above copyright | 8 // * Redistributions of source code must retain the above copyright |
| 9 // notice, this list of conditions and the following disclaimer. | 9 // notice, this list of conditions and the following disclaimer. |
| 10 // * Redistributions in binary form must reproduce the above | 10 // * Redistributions in binary form must reproduce the above |
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| 54 m_resizeRequests = 0; | 54 m_resizeRequests = 0; |
| 55 } | 55 } |
| 56 | 56 |
| 57 return m_resizedImage.width() == w && m_resizedImage.height() == h; | 57 return m_resizedImage.width() == w && m_resizedImage.height() == h; |
| 58 } | 58 } |
| 59 | 59 |
| 60 // FIXME(brettw) don't cache when image is in-progress. | 60 // FIXME(brettw) don't cache when image is in-progress. |
| 61 | 61 |
| 62 SkBitmap NativeImageSkia::resizedBitmap(int w, int h) const { | 62 SkBitmap NativeImageSkia::resizedBitmap(int w, int h) const { |
| 63 if (m_resizedImage.width() != w || m_resizedImage.height() != h) { | 63 if (m_resizedImage.width() != w || m_resizedImage.height() != h) { |
| 64 m_resizedImage = gfx::ImageOperations::Resize(*this, | 64 m_resizedImage = skia::ImageOperations::Resize(*this, |
| 65 gfx::ImageOperations::RESIZE_LANCZOS3, gfx::Size(w, h)); | 65 skia::ImageOperations::RESIZE_LANCZOS3, w, h); |
| 66 } | 66 } |
| 67 return m_resizedImage; | 67 return m_resizedImage; |
| 68 } | 68 } |
| 69 | 69 |
| 70 // static | 70 // static |
| 71 bool NativeImageSkia::shouldCacheResampling(int dest_width, | 71 bool NativeImageSkia::shouldCacheResampling(int dest_width, |
| 72 int dest_height, | 72 int dest_height, |
| 73 int dest_subset_width, | 73 int dest_subset_width, |
| 74 int dest_subset_height) const { | 74 int dest_subset_height) const { |
| 75 // We can not cache incomplete frames. This might be a good optimization in | 75 // We can not cache incomplete frames. This might be a good optimization in |
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| 98 m_lastRequestSize = WebCore::IntSize(dest_width, dest_height); | 98 m_lastRequestSize = WebCore::IntSize(dest_width, dest_height); |
| 99 m_resizeRequests = 0; | 99 m_resizeRequests = 0; |
| 100 } | 100 } |
| 101 | 101 |
| 102 // Otherwise, use the heuristic that if more than 1/4 of the image is | 102 // Otherwise, use the heuristic that if more than 1/4 of the image is |
| 103 // requested, it's worth caching. | 103 // requested, it's worth caching. |
| 104 int dest_size = dest_width * dest_height; | 104 int dest_size = dest_width * dest_height; |
| 105 int dest_subset_size = dest_subset_width * dest_subset_height; | 105 int dest_subset_size = dest_subset_width * dest_subset_height; |
| 106 return dest_size / 4 < dest_subset_size; | 106 return dest_size / 4 < dest_subset_size; |
| 107 } | 107 } |
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