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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 "caching_bitmap_content_layer_updater.h" | 5 #include "cc/resources/caching_bitmap_content_layer_updater.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "cc/resources/layer_painter.h" | 8 #include "cc/resources/layer_painter.h" |
9 #include "skia/ext/platform_canvas.h" | 9 #include "skia/ext/platform_canvas.h" |
10 | 10 |
11 namespace cc { | 11 namespace cc { |
12 | 12 |
13 scoped_refptr<CachingBitmapContentLayerUpdater> | 13 scoped_refptr<CachingBitmapContentLayerUpdater> |
14 CachingBitmapContentLayerUpdater::Create(scoped_ptr<LayerPainter> painter) { | 14 CachingBitmapContentLayerUpdater::Create(scoped_ptr<LayerPainter> painter) { |
15 return make_scoped_refptr( | 15 return make_scoped_refptr( |
(...skipping 15 matching lines...) Expand all Loading... |
31 RenderingStats* stats) { | 31 RenderingStats* stats) { |
32 BitmapContentLayerUpdater::PrepareToUpdate(content_rect, | 32 BitmapContentLayerUpdater::PrepareToUpdate(content_rect, |
33 tile_size, | 33 tile_size, |
34 contents_width_scale, | 34 contents_width_scale, |
35 contents_height_scale, | 35 contents_height_scale, |
36 resulting_opaque_rect, | 36 resulting_opaque_rect, |
37 stats); | 37 stats); |
38 | 38 |
39 const SkBitmap& new_bitmap = canvas_->getDevice()->accessBitmap(false); | 39 const SkBitmap& new_bitmap = canvas_->getDevice()->accessBitmap(false); |
40 SkAutoLockPixels lock(new_bitmap); | 40 SkAutoLockPixels lock(new_bitmap); |
41 DCHECK(new_bitmap.bytesPerPixel() > 0); | 41 DCHECK_GT(new_bitmap.bytesPerPixel(), 0); |
42 pixels_did_change_ = new_bitmap.config() != cached_bitmap_.config() || | 42 pixels_did_change_ = new_bitmap.config() != cached_bitmap_.config() || |
43 new_bitmap.height() != cached_bitmap_.height() || | 43 new_bitmap.height() != cached_bitmap_.height() || |
44 new_bitmap.width() != cached_bitmap_.width() || | 44 new_bitmap.width() != cached_bitmap_.width() || |
45 memcmp(new_bitmap.getPixels(), | 45 memcmp(new_bitmap.getPixels(), |
46 cached_bitmap_.getPixels(), | 46 cached_bitmap_.getPixels(), |
47 new_bitmap.getSafeSize()); | 47 new_bitmap.getSafeSize()); |
48 | 48 |
49 if (pixels_did_change_) | 49 if (pixels_did_change_) |
50 new_bitmap.deepCopyTo(&cached_bitmap_, new_bitmap.config()); | 50 new_bitmap.deepCopyTo(&cached_bitmap_, new_bitmap.config()); |
51 } | 51 } |
52 | 52 |
53 } // namespace cc | 53 } // namespace cc |
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