1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/images/SkImageRef_GlobalPool.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,62 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2008 The Android Open Source Project
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#ifndef SkImageRef_GlobalPool_DEFINED
1.14 +#define SkImageRef_GlobalPool_DEFINED
1.15 +
1.16 +#include "SkImageRef.h"
1.17 +
1.18 +class SkImageRef_GlobalPool : public SkImageRef {
1.19 +public:
1.20 + // if pool is null, use the global pool
1.21 + SkImageRef_GlobalPool(const SkImageInfo&, SkStreamRewindable*,
1.22 + int sampleSize = 1);
1.23 + virtual ~SkImageRef_GlobalPool();
1.24 +
1.25 + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageRef_GlobalPool)
1.26 +
1.27 + // API to control the global pool
1.28 +
1.29 + /** Return the amount specified as the budget for the cache (in bytes).
1.30 + */
1.31 + static size_t GetRAMBudget();
1.32 +
1.33 + /** Set a new budget value for the cache.
1.34 + */
1.35 + static void SetRAMBudget(size_t);
1.36 +
1.37 + /** Return how much ram is currently in use by the global cache.
1.38 + */
1.39 + static size_t GetRAMUsed();
1.40 +
1.41 + /** Free up (approximately) enough such that the amount used by the cache
1.42 + is <= the specified amount. Since some images may be "in use", the
1.43 + amount actually freed may not always result in a ram usage value <=
1.44 + to the requested amount. In addition, because of the
1.45 + chunky nature of the cache, the resulting usage may be < the requested
1.46 + amount.
1.47 + */
1.48 + static void SetRAMUsed(size_t usageInBytes);
1.49 +
1.50 + static void DumpPool();
1.51 +
1.52 +protected:
1.53 + virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable* stream,
1.54 + SkBitmap* bitmap, SkBitmap::Config config,
1.55 + SkImageDecoder::Mode mode);
1.56 +
1.57 + virtual void onUnlockPixels();
1.58 +
1.59 + SkImageRef_GlobalPool(SkReadBuffer&);
1.60 +
1.61 +private:
1.62 + typedef SkImageRef INHERITED;
1.63 +};
1.64 +
1.65 +#endif
