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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
vmpstr
2017/02/03 23:42:32
2017
Khushal
2017/02/07 00:25:32
Done.
| |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_TILES_CHECKER_IMAGE_TRACKER_H_ | |
6 #define CC_TILES_CHECKER_IMAGE_TRACKER_H_ | |
7 | |
8 #include <unordered_map> | |
9 #include <unordered_set> | |
10 #include <vector> | |
11 | |
12 #include "cc/playback/image_id.h" | |
13 #include "cc/tiles/image_controller.h" | |
14 #include "third_party/skia/include/core/SkImage.h" | |
15 | |
16 namespace cc { | |
17 class LayerTreeImpl; | |
18 class PrioritizedTile; | |
19 | |
20 class CheckerImageTrackerClient { | |
21 public: | |
22 virtual ~CheckerImageTrackerClient() {} | |
23 | |
24 virtual void NeedsInvalidationForCheckerImagedTiles() = 0; | |
25 }; | |
26 | |
27 class CheckerImageTracker { | |
28 public: | |
29 CheckerImageTracker(ImageController* image_controller, | |
30 CheckerImageTrackerClient* client, | |
31 bool enable_checker_imaging); | |
32 ~CheckerImageTracker(); | |
33 | |
34 // For the given |prioritized_tile|, populates |images| with the set of images | |
35 // that must be decoded before this tile can be rastered. | |
36 // |checkered_images| will be populated with set of images which will be | |
37 // decoded using the Image Decode Service and must be skipped during | |
38 // rasterization of this tile. | |
39 void FilterImagesForCheckeringForTile( | |
40 const PrioritizedTile& prioritized_tile, | |
41 std::vector<DrawImage>* images, | |
42 std::unordered_set<ImageId>* checkered_images); | |
43 | |
44 // Invalidates the region for decoded images on the sync tree. | |
45 void AddInvalidationForCheckerImages(LayerTreeImpl* sync_tree); | |
46 | |
47 void DidActivateSyncTree(); | |
48 | |
49 private: | |
50 void DidFinishImageDecode(ImageId image_id, | |
51 ImageController::ImageDecodeRequestId request_id); | |
52 | |
53 // Returns true if the decode for |image| will be deferred to the image decode | |
54 // service and it should be be skipped during raster. | |
55 bool AnalyzeImageForCheckeringAndScheduleDecodeIfNecessary( | |
56 const sk_sp<const SkImage> image, | |
57 WhichTree tree); | |
58 | |
59 ImageController* image_controller_; | |
60 CheckerImageTrackerClient* client_; | |
61 const bool enable_checker_imaging_; | |
62 | |
63 using ImageIdSet = std::unordered_set<ImageId>; | |
vmpstr
2017/02/03 23:42:32
I wonder if we should just use a vector. It might
Khushal
2017/02/07 00:25:32
The set was more for the look up cost. The |images
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64 | |
65 // A set of images which have been decoded and are pending invalidation for | |
66 // raster on the checkered tiles. | |
67 ImageIdSet images_pending_invalidation_; | |
68 | |
69 // A set of images which were invalidated on the current sync tree. | |
70 ImageIdSet images_invalidated_on_current_sync_tree_; | |
vmpstr
2017/02/03 23:42:32
nit: invalidated_images_
Khushal
2017/02/07 00:25:32
Done.
| |
71 | |
72 // A set of images which are currently pending decode from the image decode | |
73 // service. | |
74 // TODO(khushalsagar): This should be a queue that gets re-built each time we | |
vmpstr
2017/02/03 23:42:32
We can file a bug as a follow up for this.
Khushal
2017/02/07 00:25:32
Done.
| |
75 // do a PrepareTiles? | |
76 ImageIdSet pending_image_decodes_; | |
77 | |
78 // A set of images which have been decoded at least once from the | |
79 // ImageDecodeService and should not be checkered again. | |
80 ImageIdSet images_decoded_once_; | |
81 | |
82 // A map of image id to image decode request id for images to be unlocked. | |
83 std::unordered_map<ImageId, ImageController::ImageDecodeRequestId> | |
84 image_id_to_decode_request_id_; | |
85 | |
86 base::WeakPtrFactory<CheckerImageTracker> weak_factory_; | |
87 }; | |
88 | |
89 } // namespace cc | |
90 | |
91 #endif // CC_TILES_CHECKER_IMAGE_TRACKER_H_ | |
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