73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 SkImageRef_GlobalPool_DEFINED
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#define SkImageRef_GlobalPool_DEFINED
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#include "SkImageRef.h"
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class SkImageRef_GlobalPool : public SkImageRef {
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public:
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// if pool is null, use the global pool
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SkImageRef_GlobalPool(SkStream*, SkBitmap::Config, int sampleSize = 1);
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virtual ~SkImageRef_GlobalPool();
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// overrides
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virtual Factory getFactory() const {
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return Create;
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}
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static SkPixelRef* Create(SkFlattenableReadBuffer&);
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// API to control the global pool
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/** Return the amount specified as the budget for the cache (in bytes).
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*/
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static size_t GetRAMBudget();
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/** Set a new budget value for the cache.
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*/
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static void SetRAMBudget(size_t);
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/** Return how much ram is currently in use by the global cache.
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*/
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static size_t GetRAMUsed();
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/** Free up (approximately) enough such that the amount used by the cache
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is <= the specified amount. Since some images may be "in use", the
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amount actually freed may not always result in a ram usage value <=
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to the requested amount. In addition, because of the
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chunky nature of the cache, the resulting usage may be < the requested
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amount.
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*/
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static void SetRAMUsed(size_t usageInBytes);
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static void DumpPool();
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protected:
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virtual bool onDecode(SkImageDecoder* codec, SkStream* stream,
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SkBitmap* bitmap, SkBitmap::Config config,
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SkImageDecoder::Mode mode);
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virtual void onUnlockPixels();
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SkImageRef_GlobalPool(SkFlattenableReadBuffer&);
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private:
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typedef SkImageRef INHERITED;
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};
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#endif
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