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/*
* Copyright 2008 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkImageRef_GlobalPool_DEFINED
#define SkImageRef_GlobalPool_DEFINED
#include "SkImageRef.h"
class SkImageRef_GlobalPool : public SkImageRef {
public:
// if pool is null, use the global pool
SkImageRef_GlobalPool(const SkImageInfo&, SkStreamRewindable*,
int sampleSize = 1);
virtual ~SkImageRef_GlobalPool();
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageRef_GlobalPool)
// API to control the global pool
/** Return the amount specified as the budget for the cache (in bytes).
*/
static size_t GetRAMBudget();
/** Set a new budget value for the cache.
*/
static void SetRAMBudget(size_t);
/** Return how much ram is currently in use by the global cache.
*/
static size_t GetRAMUsed();
/** Free up (approximately) enough such that the amount used by the cache
is <= the specified amount. Since some images may be "in use", the
amount actually freed may not always result in a ram usage value <=
to the requested amount. In addition, because of the
chunky nature of the cache, the resulting usage may be < the requested
amount.
*/
static void SetRAMUsed(size_t usageInBytes);
static void DumpPool();
protected:
virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable* stream,
SkBitmap* bitmap, SkBitmap::Config config,
SkImageDecoder::Mode mode);
virtual void onUnlockPixels();
SkImageRef_GlobalPool(SkReadBuffer&);
private:
typedef SkImageRef INHERITED;
};
#endif
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