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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 #ifndef CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ | 5 #ifndef CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ |
6 #define CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ | 6 #define CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ |
7 | 7 |
8 #include <utility> | 8 #include <utility> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "cc/base/cc_export.h" | 12 #include "cc/base/cc_export.h" |
13 #include "cc/base/rtree.h" | 13 #include "cc/base/rtree.h" |
14 #include "cc/playback/draw_image.h" | 14 #include "cc/playback/draw_image.h" |
15 #include "third_party/skia/include/core/SkPicture.h" | 15 #include "third_party/skia/include/core/SkPicture.h" |
16 #include "ui/gfx/geometry/rect.h" | 16 #include "ui/gfx/geometry/rect.h" |
17 #include "ui/gfx/geometry/size.h" | 17 #include "ui/gfx/geometry/size.h" |
18 | 18 |
19 class SkImage; | 19 class SkImage; |
20 | 20 |
21 namespace cc { | 21 namespace cc { |
22 | 22 |
| 23 // Helper function to apply the matrix to the rect and return the result. |
| 24 SkRect MapRect(const SkMatrix& matrix, const SkRect& src); |
| 25 |
| 26 // Helper funciton to extract a scale from the matrix. Returns true on success |
| 27 // and false on failure. |
| 28 bool ExtractScale(const SkMatrix& matrix, SkSize* scale); |
| 29 |
23 // This class is used for generating discardable images data (see DrawImage | 30 // This class is used for generating discardable images data (see DrawImage |
24 // for the type of data it stores). It allows the client to query a particular | 31 // for the type of data it stores). It allows the client to query a particular |
25 // rect and get back a list of DrawImages in that rect. | 32 // rect and get back a list of DrawImages in that rect. |
26 class CC_EXPORT DiscardableImageMap { | 33 class CC_EXPORT DiscardableImageMap { |
27 public: | 34 public: |
28 class CC_EXPORT ScopedMetadataGenerator { | 35 class CC_EXPORT ScopedMetadataGenerator { |
29 public: | 36 public: |
30 ScopedMetadataGenerator(DiscardableImageMap* image_map, | 37 ScopedMetadataGenerator(DiscardableImageMap* image_map, |
31 const gfx::Size& bounds); | 38 const gfx::Size& bounds); |
32 ~ScopedMetadataGenerator(); | 39 ~ScopedMetadataGenerator(); |
(...skipping 21 matching lines...) Expand all Loading... |
54 scoped_ptr<SkCanvas> BeginGeneratingMetadata(const gfx::Size& bounds); | 61 scoped_ptr<SkCanvas> BeginGeneratingMetadata(const gfx::Size& bounds); |
55 void EndGeneratingMetadata(); | 62 void EndGeneratingMetadata(); |
56 | 63 |
57 std::vector<PositionDrawImage> all_images_; | 64 std::vector<PositionDrawImage> all_images_; |
58 RTree images_rtree_; | 65 RTree images_rtree_; |
59 }; | 66 }; |
60 | 67 |
61 } // namespace cc | 68 } // namespace cc |
62 | 69 |
63 #endif // CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ | 70 #endif // CC_PLAYBACK_DISCARDABLE_IMAGE_MAP_H_ |
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