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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 
     28 namespace android {
     29 
     30 class Surface;
     31 
     32 namespace uirenderer {
     33 
     34 class RenderState;
     35 
     36 namespace renderthread {
     37 
     38 class IRenderPipeline;
     39 class RenderThread;
     40 
     41 class CacheManager {
     42 public:
     43     enum class TrimMemoryMode { Complete, UiHidden };
     44 
     45     void configureContext(GrContextOptions* context, const void* identity, ssize_t size);
     46     void trimMemory(TrimMemoryMode mode);
     47     void trimStaleResources();
     48     void dumpMemoryUsage(String8& log, const RenderState* renderState = nullptr);
     49 
     50     sp<skiapipeline::VectorDrawableAtlas> acquireVectorDrawableAtlas();
     51 
     52     size_t getCacheSize() const { return mMaxResourceBytes; }
     53     size_t getBackgroundCacheSize() const { return mBackgroundResourceBytes; }
     54 
     55 private:
     56     friend class RenderThread;
     57 
     58     explicit CacheManager(const DisplayInfo& display);
     59 
     60     void reset(sk_sp<GrContext> grContext);
     61     void destroy();
     62 
     63     const size_t mMaxSurfaceArea;
     64     sk_sp<GrContext> mGrContext;
     65 
     66     int mMaxResources = 0;
     67     const size_t mMaxResourceBytes;
     68     const size_t mBackgroundResourceBytes;
     69 
     70     const size_t mMaxGpuFontAtlasBytes;
     71     const size_t mMaxCpuFontCacheBytes;
     72     const size_t mBackgroundCpuFontCacheBytes;
     73 
     74     struct PipelineProps {
     75         const void* pipelineKey = nullptr;
     76         size_t surfaceArea = 0;
     77     };
     78 
     79     sp<skiapipeline::VectorDrawableAtlas> mVectorDrawableAtlas;
     80 };
     81 
     82 } /* namespace renderthread */
     83 } /* namespace uirenderer */
     84 } /* namespace android */
     85 
     86 #endif /* CACHEMANAGER_H */
     87