| // Copyright 2012 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_RESOURCE_UPDATE_CONTROLLER_H_ |
| #define CC_RESOURCE_UPDATE_CONTROLLER_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/time.h" |
| #include "cc/cc_export.h" |
| #include "cc/resource_update_queue.h" |
| |
| namespace cc { |
| |
| class ResourceProvider; |
| class Thread; |
| |
| class ResourceUpdateControllerClient { |
| public: |
| virtual void readyToFinalizeTextureUpdates() = 0; |
| |
| protected: |
| virtual ~ResourceUpdateControllerClient() { } |
| }; |
| |
| class CC_EXPORT ResourceUpdateController { |
| public: |
| static scoped_ptr<ResourceUpdateController> create(ResourceUpdateControllerClient* client, Thread* thread, scoped_ptr<ResourceUpdateQueue> queue, ResourceProvider* resourceProvider, bool hasImplThread) |
| { |
| return make_scoped_ptr(new ResourceUpdateController(client, thread, queue.Pass(), resourceProvider, hasImplThread)); |
| } |
| static size_t maxPartialTextureUpdates(); |
| |
| virtual ~ResourceUpdateController(); |
| |
| // Discard uploads to textures that were evicted on the impl thread. |
| void discardUploadsToEvictedResources(); |
| |
| void performMoreUpdates(base::TimeTicks timeLimit); |
| void finalize(); |
| |
| |
| // Virtual for testing. |
| virtual base::TimeTicks now() const; |
| virtual base::TimeDelta updateMoreTexturesTime() const; |
| virtual size_t updateMoreTexturesSize() const; |
| |
| protected: |
| ResourceUpdateController(ResourceUpdateControllerClient*, Thread*, scoped_ptr<ResourceUpdateQueue>, ResourceProvider*, bool hasImplThread); |
| |
| private: |
| static size_t maxFullUpdatesPerTick(ResourceProvider*); |
| |
| size_t maxBlockingUpdates() const; |
| base::TimeDelta pendingUpdateTime() const; |
| |
| void updateTexture(ResourceUpdate); |
| |
| // This returns true when there were textures left to update. |
| bool updateMoreTexturesIfEnoughTimeRemaining(); |
| void updateMoreTexturesNow(); |
| void onTimerFired(); |
| |
| ResourceUpdateControllerClient* m_client; |
| bool m_hasImplThread; |
| scoped_ptr<ResourceUpdateQueue> m_queue; |
| bool m_contentsTexturesPurged; |
| ResourceProvider* m_resourceProvider; |
| base::TimeTicks m_timeLimit; |
| size_t m_textureUpdatesPerTick; |
| bool m_firstUpdateAttempt; |
| Thread* m_thread; |
| base::WeakPtrFactory<ResourceUpdateController> m_weakFactory; |
| bool m_taskPosted; |
| |
| DISALLOW_COPY_AND_ASSIGN(ResourceUpdateController); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_RESOURCE_UPDATE_CONTROLLER_H_ |