| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_BLIMP_ENGINE_PICTURE_CACHE_H_ |
| #define CC_BLIMP_ENGINE_PICTURE_CACHE_H_ |
| |
| #include <vector> |
| |
| class SkPicture; |
| |
| namespace cc { |
| struct PictureData; |
| |
| // EnginePictureCache provides functionaltiy for marking when SkPictures are in |
| // use an when they stop being in use. Based on this, a PictureCacheUpdate can |
| // be retrieved that includes all the new items since last time it was called. |
| // This PictureCacheUpdate is then supposed to be sent to the client. |
| class EnginePictureCache { |
| public: |
| virtual ~EnginePictureCache() {} |
| |
| // MarkUsed must be called when an SkPicture needs to available on the client. |
| virtual void MarkUsed(const SkPicture* picture) = 0; |
| |
| // Called when a PictureCacheUpdate is going to be sent to the client. This |
| // must contain all the new SkPictures that are in use since last call. |
| virtual std::vector<PictureData> CalculateCacheUpdateAndFlush() = 0; |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_BLIMP_ENGINE_PICTURE_CACHE_H_ |