PatchCache.h revision f7f93556c8fcc640ab5adef79d021a80a72a645a 
1/*
2 * Copyright (C) 2010 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 ANDROID_UI_PATCH_CACHE_H
18#define ANDROID_UI_PATCH_CACHE_H
19
20#include "Patch.h"
21#include "GenerationCache.h"
22
23namespace android {
24namespace uirenderer {
25
26///////////////////////////////////////////////////////////////////////////////
27// Defines
28///////////////////////////////////////////////////////////////////////////////
29
30// Debug
31#define DEBUG_PATCHES 0
32
33// Debug
34#if DEBUG_PATCHES
35    #define PATCH_LOGD(...) LOGD(__VA_ARGS__)
36#else
37    #define PATCH_LOGD(...)
38#endif
39
40///////////////////////////////////////////////////////////////////////////////
41// Cache
42///////////////////////////////////////////////////////////////////////////////
43
44class PatchCache: public OnEntryRemoved<PatchDescription, Patch*> {
45public:
46    PatchCache(uint32_t maxCapacity);
47    ~PatchCache();
48
49    /**
50     * Used as a callback when an entry is removed from the cache.
51     * Do not invoke directly.
52     */
53    void operator()(PatchDescription& description, Patch*& mesh);
54
55    Patch* get(const Res_png_9patch* patch);
56    void clear();
57
58private:
59    GenerationCache<PatchDescription, Patch*> mCache;
60}; // class PatchCache
61
62}; // namespace uirenderer
63}; // namespace android
64
65#endif // ANDROID_UI_PATCH_CACHE_H
66