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 #ifdef __ANDROID__ // Layoutlib does not support hardware acceleration
21 #include <GrContext.h>
22 #endif
23 #include <SkSurface.h>
24 #include <utils/String8.h>
25 #include <vector>
26 
27 namespace android {
28 
29 class Surface;
30 
31 namespace uirenderer {
32 
33 class RenderState;
34 
35 namespace renderthread {
36 
37 class IRenderPipeline;
38 class RenderThread;
39 
40 class CacheManager {
41 public:
42     enum class TrimMemoryMode { Complete, UiHidden };
43 
44 #ifdef __ANDROID__ // Layoutlib does not support hardware acceleration
45     void configureContext(GrContextOptions* context, const void* identity, ssize_t size);
46 #endif
47     void trimMemory(TrimMemoryMode mode);
48     void trimStaleResources();
49     void dumpMemoryUsage(String8& log, const RenderState* renderState = nullptr);
50 
getCacheSize()51     size_t getCacheSize() const { return mMaxResourceBytes; }
getBackgroundCacheSize()52     size_t getBackgroundCacheSize() const { return mBackgroundResourceBytes; }
53     void onFrameCompleted();
54 
55 private:
56     friend class RenderThread;
57 
58     explicit CacheManager();
59 
60 #ifdef __ANDROID__ // Layoutlib does not support hardware acceleration
61     void reset(sk_sp<GrContext> grContext);
62 #endif
63     void destroy();
64 
65     const size_t mMaxSurfaceArea;
66 #ifdef __ANDROID__ // Layoutlib does not support hardware acceleration
67     sk_sp<GrContext> mGrContext;
68 #endif
69 
70     const size_t mMaxResourceBytes;
71     const size_t mBackgroundResourceBytes;
72 
73     const size_t mMaxGpuFontAtlasBytes;
74     const size_t mMaxCpuFontCacheBytes;
75     const size_t mBackgroundCpuFontCacheBytes;
76 };
77 
78 } /* namespace renderthread */
79 } /* namespace uirenderer */
80 } /* namespace android */
81 
82 #endif /* CACHEMANAGER_H */
83