| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrCacheable_DEFINED |
| #define GrCacheable_DEFINED |
| |
| #include "SkRefCnt.h" |
| |
| class GrResourceCacheEntry; |
| |
| /** |
| * Base class for objects that can be kept in the GrResourceCache. |
| */ |
| class GrCacheable : public SkRefCnt { |
| public: |
| SK_DECLARE_INST_COUNT(GrCacheable) |
| |
| /** |
| * Retrieves the amount of GPU memory used by this resource in bytes. It is |
| * approximate since we aren't aware of additional padding or copies made |
| * by the driver. |
| * |
| * @return the amount of GPU memory used in bytes |
| */ |
| virtual size_t gpuMemorySize() const = 0; |
| |
| /** |
| * Checks whether the GPU memory allocated to this resource is still in effect. |
| * It can become invalid if its context is destroyed or lost, in which case it |
| * should no longer count against the GrResourceCache budget. |
| * |
| * @return true if this resource is still holding GPU memory |
| * false otherwise. |
| */ |
| virtual bool isValidOnGpu() const = 0; |
| |
| void setCacheEntry(GrResourceCacheEntry* cacheEntry) { fCacheEntry = cacheEntry; } |
| GrResourceCacheEntry* getCacheEntry() { return fCacheEntry; } |
| |
| protected: |
| GrCacheable() : fCacheEntry(NULL) {} |
| |
| bool isInCache() const { return NULL != fCacheEntry; } |
| |
| private: |
| GrResourceCacheEntry* fCacheEntry; // NULL if not in cache |
| |
| typedef SkRefCnt INHERITED; |
| }; |
| |
| #endif |