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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef CACHEMANAGER_H
     18 #define CACHEMANAGER_H
     19 
     20 #include <GrContext.h>
     21 #include <SkSurface.h>
     22 #include <ui/DisplayInfo.h>
     23 #include <utils/String8.h>
     24 #include <vector>
     25 
     26 #include "pipeline/skia/VectorDrawableAtlas.h"
     27 #include "thread/TaskManager.h"
     28 #include "thread/TaskProcessor.h"
     29 
     30 namespace android {
     31 
     32 class Surface;
     33 
     34 namespace uirenderer {
     35 
     36 class RenderState;
     37 
     38 namespace renderthread {
     39 
     40 class IRenderPipeline;
     41 class RenderThread;
     42 
     43 class CacheManager {
     44 public:
     45     enum class TrimMemoryMode { Complete, UiHidden };
     46 
     47     void configureContext(GrContextOptions* context);
     48     void trimMemory(TrimMemoryMode mode);
     49     void trimStaleResources();
     50     void dumpMemoryUsage(String8& log, const RenderState* renderState = nullptr);
     51 
     52     sp<skiapipeline::VectorDrawableAtlas> acquireVectorDrawableAtlas();
     53 
     54     size_t getCacheSize() const { return mMaxResourceBytes; }
     55     size_t getBackgroundCacheSize() const { return mBackgroundResourceBytes; }
     56 
     57     TaskManager* getTaskManager() { return &mTaskManager; }
     58 
     59 private:
     60     friend class RenderThread;
     61 
     62     CacheManager(const DisplayInfo& display);
     63 
     64     void reset(sk_sp<GrContext> grContext);
     65     void destroy();
     66     void updateContextCacheSizes();
     67 
     68     const size_t mMaxSurfaceArea;
     69     sk_sp<GrContext> mGrContext;
     70 
     71     int mMaxResources = 0;
     72     size_t mMaxResourceBytes = 0;
     73     size_t mBackgroundResourceBytes = 0;
     74 
     75     struct PipelineProps {
     76         const void* pipelineKey = nullptr;
     77         size_t surfaceArea = 0;
     78     };
     79 
     80     sp<skiapipeline::VectorDrawableAtlas> mVectorDrawableAtlas;
     81 
     82     class SkiaTaskProcessor;
     83     sp<SkiaTaskProcessor> mTaskProcessor;
     84     TaskManager mTaskManager;
     85 };
     86 
     87 } /* namespace renderthread */
     88 } /* namespace uirenderer */
     89 } /* namespace android */
     90 
     91 #endif /* CACHEMANAGER_H */
     92