Index: cc/tiles/checker_image_tracker.h |
diff --git a/cc/tiles/checker_image_tracker.h b/cc/tiles/checker_image_tracker.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..196190730f761fb6cbb0f11d74b89baabee7d7ad |
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+++ b/cc/tiles/checker_image_tracker.h |
@@ -0,0 +1,91 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
vmpstr
2017/02/03 23:42:32
2017
Khushal
2017/02/07 00:25:32
Done.
|
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CC_TILES_CHECKER_IMAGE_TRACKER_H_ |
+#define CC_TILES_CHECKER_IMAGE_TRACKER_H_ |
+ |
+#include <unordered_map> |
+#include <unordered_set> |
+#include <vector> |
+ |
+#include "cc/playback/image_id.h" |
+#include "cc/tiles/image_controller.h" |
+#include "third_party/skia/include/core/SkImage.h" |
+ |
+namespace cc { |
+class LayerTreeImpl; |
+class PrioritizedTile; |
+ |
+class CheckerImageTrackerClient { |
+ public: |
+ virtual ~CheckerImageTrackerClient() {} |
+ |
+ virtual void NeedsInvalidationForCheckerImagedTiles() = 0; |
+}; |
+ |
+class CheckerImageTracker { |
+ public: |
+ CheckerImageTracker(ImageController* image_controller, |
+ CheckerImageTrackerClient* client, |
+ bool enable_checker_imaging); |
+ ~CheckerImageTracker(); |
+ |
+ // For the given |prioritized_tile|, populates |images| with the set of images |
+ // that must be decoded before this tile can be rastered. |
+ // |checkered_images| will be populated with set of images which will be |
+ // decoded using the Image Decode Service and must be skipped during |
+ // rasterization of this tile. |
+ void FilterImagesForCheckeringForTile( |
+ const PrioritizedTile& prioritized_tile, |
+ std::vector<DrawImage>* images, |
+ std::unordered_set<ImageId>* checkered_images); |
+ |
+ // Invalidates the region for decoded images on the sync tree. |
+ void AddInvalidationForCheckerImages(LayerTreeImpl* sync_tree); |
+ |
+ void DidActivateSyncTree(); |
+ |
+ private: |
+ void DidFinishImageDecode(ImageId image_id, |
+ ImageController::ImageDecodeRequestId request_id); |
+ |
+ // Returns true if the decode for |image| will be deferred to the image decode |
+ // service and it should be be skipped during raster. |
+ bool AnalyzeImageForCheckeringAndScheduleDecodeIfNecessary( |
+ const sk_sp<const SkImage> image, |
+ WhichTree tree); |
+ |
+ ImageController* image_controller_; |
+ CheckerImageTrackerClient* client_; |
+ const bool enable_checker_imaging_; |
+ |
+ 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
|
+ |
+ // A set of images which have been decoded and are pending invalidation for |
+ // raster on the checkered tiles. |
+ ImageIdSet images_pending_invalidation_; |
+ |
+ // A set of images which were invalidated on the current sync tree. |
+ 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.
|
+ |
+ // A set of images which are currently pending decode from the image decode |
+ // service. |
+ // 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.
|
+ // do a PrepareTiles? |
+ ImageIdSet pending_image_decodes_; |
+ |
+ // A set of images which have been decoded at least once from the |
+ // ImageDecodeService and should not be checkered again. |
+ ImageIdSet images_decoded_once_; |
+ |
+ // A map of image id to image decode request id for images to be unlocked. |
+ std::unordered_map<ImageId, ImageController::ImageDecodeRequestId> |
+ image_id_to_decode_request_id_; |
+ |
+ base::WeakPtrFactory<CheckerImageTracker> weak_factory_; |
+}; |
+ |
+} // namespace cc |
+ |
+#endif // CC_TILES_CHECKER_IMAGE_TRACKER_H_ |