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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 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 "cc/tiles/checker_image_tracker.h" | 5 #include "cc/tiles/checker_image_tracker.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/trace_event/trace_event.h" | 8 #include "base/trace_event/trace_event.h" |
9 | 9 |
10 namespace cc { | 10 namespace cc { |
(...skipping 17 matching lines...) Expand all Loading... | |
28 client_(client), | 28 client_(client), |
29 enable_checker_imaging_(enable_checker_imaging), | 29 enable_checker_imaging_(enable_checker_imaging), |
30 weak_factory_(this) {} | 30 weak_factory_(this) {} |
31 | 31 |
32 CheckerImageTracker::~CheckerImageTracker() { | 32 CheckerImageTracker::~CheckerImageTracker() { |
33 // Unlock all images pending decode requests. | 33 // Unlock all images pending decode requests. |
34 for (auto it : image_id_to_decode_request_id_) | 34 for (auto it : image_id_to_decode_request_id_) |
35 image_controller_->UnlockImageDecode(it.second); | 35 image_controller_->UnlockImageDecode(it.second); |
36 } | 36 } |
37 | 37 |
38 void CheckerImageTracker::FilterImagesForCheckeringForTile( | 38 void CheckerImageTracker::SetImageDecodeQueue( |
39 std::vector<DrawImage>* images, | 39 ImageDecodeQueue image_decode_queue) { |
40 ImageIdFlatSet* checkered_images, | 40 image_decode_queue_ = std::move(image_decode_queue); |
41 WhichTree tree) { | 41 next_image_to_decode_ = 0; |
42 DCHECK(checkered_images->empty()); | 42 ScheduleNextImageDecode(); |
43 | |
44 auto images_to_checker = std::remove_if( | |
45 images->begin(), images->end(), | |
46 [this, tree, &checkered_images](const DrawImage& draw_image) { | |
47 const sk_sp<const SkImage>& image = draw_image.image(); | |
48 DCHECK(image->isLazyGenerated()); | |
49 if (ShouldCheckerImage(image, tree)) { | |
50 ScheduleImageDecodeIfNecessary(image); | |
51 checkered_images->insert(image->uniqueID()); | |
52 return true; | |
53 } | |
54 return false; | |
55 }); | |
56 images->erase(images_to_checker, images->end()); | |
57 } | 43 } |
58 | 44 |
59 const ImageIdFlatSet& CheckerImageTracker::TakeImagesToInvalidateOnSyncTree() { | 45 const ImageIdFlatSet& CheckerImageTracker::TakeImagesToInvalidateOnSyncTree() { |
60 DCHECK_EQ(invalidated_images_on_current_sync_tree_.size(), 0u) | 46 DCHECK_EQ(invalidated_images_on_current_sync_tree_.size(), 0u) |
61 << "Sync tree can not be invalidated more than once"; | 47 << "Sync tree can not be invalidated more than once"; |
62 | 48 |
63 invalidated_images_on_current_sync_tree_.swap(images_pending_invalidation_); | 49 invalidated_images_on_current_sync_tree_.swap(images_pending_invalidation_); |
64 images_pending_invalidation_.clear(); | 50 images_pending_invalidation_.clear(); |
65 return invalidated_images_on_current_sync_tree_; | 51 return invalidated_images_on_current_sync_tree_; |
66 } | 52 } |
67 | 53 |
68 void CheckerImageTracker::DidActivateSyncTree() { | 54 void CheckerImageTracker::DidActivateSyncTree() { |
69 for (auto image_id : invalidated_images_on_current_sync_tree_) { | 55 for (auto image_id : invalidated_images_on_current_sync_tree_) { |
70 auto it = image_id_to_decode_request_id_.find(image_id); | 56 auto it = image_id_to_decode_request_id_.find(image_id); |
71 image_controller_->UnlockImageDecode(it->second); | 57 image_controller_->UnlockImageDecode(it->second); |
72 image_id_to_decode_request_id_.erase(it); | 58 image_id_to_decode_request_id_.erase(it); |
73 } | 59 } |
74 | 60 |
75 invalidated_images_on_current_sync_tree_.clear(); | 61 invalidated_images_on_current_sync_tree_.clear(); |
76 } | 62 } |
77 | 63 |
78 void CheckerImageTracker::DidFinishImageDecode( | 64 void CheckerImageTracker::DidFinishImageDecode( |
79 ImageId image_id, | 65 ImageId image_id, |
80 ImageController::ImageDecodeRequestId request_id, | 66 ImageController::ImageDecodeRequestId request_id, |
81 ImageController::ImageDecodeResult result) { | 67 ImageController::ImageDecodeResult result) { |
82 TRACE_EVENT_ASYNC_END0("cc", "CheckerImageTracker::DeferImageDecode", | 68 TRACE_EVENT_ASYNC_END0("cc", "CheckerImageTracker::DeferImageDecode", |
83 image_id); | 69 image_id); |
84 | 70 |
85 DCHECK_NE(result, ImageController::ImageDecodeResult::DECODE_NOT_REQUIRED); | 71 DCHECK_NE(ImageController::ImageDecodeResult::DECODE_NOT_REQUIRED, result); |
86 DCHECK_NE(pending_image_decodes_.count(image_id), 0u); | 72 DCHECK_EQ(outstanding_image_decode_->uniqueID(), image_id); |
87 pending_image_decodes_.erase(image_id); | 73 outstanding_image_decode_ = nullptr; |
88 | |
89 images_decoded_once_.insert(image_id); | 74 images_decoded_once_.insert(image_id); |
90 images_pending_invalidation_.insert(image_id); | 75 images_pending_invalidation_.insert(image_id); |
76 | |
77 ScheduleNextImageDecode(); | |
91 client_->NeedsInvalidationForCheckerImagedTiles(); | 78 client_->NeedsInvalidationForCheckerImagedTiles(); |
92 } | 79 } |
93 | 80 |
94 bool CheckerImageTracker::ShouldCheckerImage(const sk_sp<const SkImage>& image, | 81 bool CheckerImageTracker::ShouldCheckerImage(const sk_sp<const SkImage>& image, |
95 WhichTree tree) const { | 82 WhichTree tree) const { |
96 TRACE_EVENT1("cc", "CheckerImageTracker::ShouldCheckerImage", "image_id", | 83 TRACE_EVENT1("cc", "CheckerImageTracker::ShouldCheckerImage", "image_id", |
97 image->uniqueID()); | 84 image->uniqueID()); |
98 | 85 |
99 if (!enable_checker_imaging_) | 86 if (!enable_checker_imaging_) |
100 return false; | 87 return false; |
101 | 88 |
102 // If the image was invalidated on the current sync tree and the tile is | 89 // If the image was invalidated on the current sync tree and the tile is |
103 // for the active tree, continue checkering it on the active tree to ensure | 90 // for the active tree, continue checkering it on the active tree to ensure |
104 // the image update is atomic for the frame. | 91 // the image update is atomic for the frame. |
105 if (invalidated_images_on_current_sync_tree_.count(image->uniqueID()) != 0 && | 92 if (invalidated_images_on_current_sync_tree_.count(image->uniqueID()) != 0 && |
106 tree == WhichTree::ACTIVE_TREE) { | 93 tree == WhichTree::ACTIVE_TREE) { |
107 return true; | 94 return true; |
108 } | 95 } |
109 | 96 |
110 // If a decode request is pending for this image, continue checkering it. | |
111 if (pending_image_decodes_.find(image->uniqueID()) != | |
112 pending_image_decodes_.end()) { | |
113 return true; | |
114 } | |
115 | |
116 // If the image is pending invalidation, continue checkering it. All tiles | 97 // If the image is pending invalidation, continue checkering it. All tiles |
117 // for these images will be invalidated on the next pending tree. | 98 // for these images will be invalidated on the next pending tree. |
118 if (images_pending_invalidation_.find(image->uniqueID()) != | 99 if (images_pending_invalidation_.find(image->uniqueID()) != |
119 images_pending_invalidation_.end()) { | 100 images_pending_invalidation_.end()) { |
120 return true; | 101 return true; |
121 } | 102 } |
122 | 103 |
123 // If the image has been decoded once before, don't checker it again. | 104 // If the image has been decoded once before, don't checker it again. |
124 if (images_decoded_once_.find(image->uniqueID()) != | 105 if (images_decoded_once_.find(image->uniqueID()) != |
125 images_decoded_once_.end()) { | 106 images_decoded_once_.end()) { |
126 return false; | 107 return false; |
127 } | 108 } |
128 | 109 |
129 return SafeSizeOfImage(image.get()) >= kMinImageSizeToCheckerBytes; | 110 return SafeSizeOfImage(image.get()) >= kMinImageSizeToCheckerBytes; |
130 } | 111 } |
131 | 112 |
132 void CheckerImageTracker::ScheduleImageDecodeIfNecessary( | 113 void CheckerImageTracker::ScheduleNextImageDecode() { |
133 const sk_sp<const SkImage>& image) { | 114 if (image_decode_queue_.empty()) |
134 ImageId image_id = image->uniqueID(); | 115 return; |
135 | 116 |
136 // If the image has already been decoded, or a decode request is pending, we | 117 if (outstanding_image_decode_) |
vmpstr
2017/03/17 18:32:13
Leave a comment here explaining that if we have so
Khushal
2017/03/27 13:57:32
Done.
| |
137 // don't need to schedule another decode. | |
138 if (images_decoded_once_.count(image_id) != 0 || | |
139 pending_image_decodes_.count(image_id) != 0) { | |
140 return; | 118 return; |
119 | |
120 DCHECK_GE(next_image_to_decode_, 0u); | |
121 DCHECK_LT(next_image_to_decode_, image_decode_queue_.size()); | |
122 while (next_image_to_decode_ != image_decode_queue_.size()) { | |
123 outstanding_image_decode_ = | |
124 std::move(image_decode_queue_[next_image_to_decode_++]); | |
125 | |
126 // The image may have already been decoded. Proceed to the next image in the | |
vmpstr
2017/03/17 18:32:13
Can you rephrase this comment to match the code? T
Khushal
2017/03/27 13:57:32
Done.
| |
127 // queue in that case. | |
128 ImageId image_id = outstanding_image_decode_->uniqueID(); | |
129 if (images_decoded_once_.count(image_id) == 0) | |
130 break; | |
131 outstanding_image_decode_ = nullptr; | |
141 } | 132 } |
142 | 133 |
134 if (next_image_to_decode_ == image_decode_queue_.size()) { | |
vmpstr
2017/03/17 18:32:13
Comment here
Khushal
2017/03/27 13:57:32
Done.
| |
135 next_image_to_decode_ = 0; | |
136 image_decode_queue_.clear(); | |
137 } | |
138 | |
139 if (!outstanding_image_decode_) | |
140 return; | |
141 | |
142 ImageId image_id = outstanding_image_decode_->uniqueID(); | |
143 DCHECK_EQ(image_id_to_decode_request_id_.count(image_id), 0u); | |
143 TRACE_EVENT_ASYNC_BEGIN0("cc", "CheckerImageTracker::DeferImageDecode", | 144 TRACE_EVENT_ASYNC_BEGIN0("cc", "CheckerImageTracker::DeferImageDecode", |
144 image_id); | 145 image_id); |
145 DCHECK_EQ(image_id_to_decode_request_id_.count(image_id), 0U); | |
146 | |
147 image_id_to_decode_request_id_[image_id] = | 146 image_id_to_decode_request_id_[image_id] = |
148 image_controller_->QueueImageDecode( | 147 image_controller_->QueueImageDecode( |
149 image, base::Bind(&CheckerImageTracker::DidFinishImageDecode, | 148 outstanding_image_decode_, |
150 weak_factory_.GetWeakPtr(), image_id)); | 149 base::Bind(&CheckerImageTracker::DidFinishImageDecode, |
151 pending_image_decodes_.insert(image_id); | 150 weak_factory_.GetWeakPtr(), image_id)); |
152 } | 151 } |
153 | 152 |
154 } // namespace cc | 153 } // namespace cc |
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