mirror of https://github.com/axmolengine/axmol.git
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/*
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Copyright 2010 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef SkBitmapCache_DEFINED
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#define SkBitmapCache_DEFINED
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#include "SkBitmap.h"
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class SkBitmapCache : SkNoncopyable {
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public:
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SkBitmapCache(int maxEntries);
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~SkBitmapCache();
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bool find(const void* buffer, size_t len, SkBitmap*) const;
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void add(const void* buffer, size_t len, const SkBitmap&);
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private:
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int fEntryCount;
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const int fMaxEntries;
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struct Entry;
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mutable Entry* fHead;
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mutable Entry* fTail;
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inline Entry* detach(Entry*) const;
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inline void attachToHead(Entry*) const;
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#ifdef SK_DEBUG
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void validate() const;
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#else
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void validate() const {}
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#endif
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class AutoValidate : SkNoncopyable {
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public:
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AutoValidate(const SkBitmapCache* bc) : fBC(bc) { bc->validate(); }
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~AutoValidate() { fBC->validate(); }
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private:
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const SkBitmapCache* fBC;
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};
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};
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#endif
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