| 1 | /* | 
|---|---|
| 2 | * Copyright 2017 Google Inc. | 
| 3 | * | 
| 4 | * Use of this source code is governed by a BSD-style license that can be | 
| 5 | * found in the LICENSE file. | 
| 6 | */ | 
| 7 | |
| 8 | #ifndef GrTextureProxyCacheAccess_DEFINED | 
| 9 | #define GrTextureProxyCacheAccess_DEFINED | 
| 10 | |
| 11 | #include "src/gpu/GrTextureProxy.h" | 
| 12 | |
| 13 | /** | 
| 14 | * This class allows GrResourceCache increased privileged access to GrTextureProxy objects. | 
| 15 | */ | 
| 16 | class GrTextureProxy::CacheAccess { | 
| 17 | private: | 
| 18 | void setUniqueKey(GrProxyProvider* proxyProvider, const GrUniqueKey& key) { | 
| 19 | fTextureProxy->setUniqueKey(proxyProvider, key); | 
| 20 | } | 
| 21 | |
| 22 | void clearUniqueKey() { | 
| 23 | fTextureProxy->clearUniqueKey(); | 
| 24 | } | 
| 25 | |
| 26 | explicit CacheAccess(GrTextureProxy* textureProxy) : fTextureProxy(textureProxy) {} | 
| 27 | CacheAccess(const CacheAccess&) = delete; | 
| 28 | CacheAccess& operator=(const CacheAccess&) = delete; | 
| 29 | |
| 30 | // No taking addresses of this type. | 
| 31 | const CacheAccess* operator&() const; | 
| 32 | CacheAccess* operator&(); | 
| 33 | |
| 34 | GrTextureProxy* fTextureProxy; | 
| 35 | |
| 36 | friend class GrTextureProxy; // to construct/copy this type. | 
| 37 | friend class GrProxyProvider; // to use this type | 
| 38 | }; | 
| 39 | |
| 40 | inline GrTextureProxy::CacheAccess GrTextureProxy::cacheAccess() { return CacheAccess(this); } | 
| 41 | |
| 42 | inline const GrTextureProxy::CacheAccess GrTextureProxy::cacheAccess() const { // NOLINT(readability-const-return-type) | 
| 43 | return CacheAccess(const_cast<GrTextureProxy*>(this)); | 
| 44 | } | 
| 45 | |
| 46 | #endif | 
| 47 | 
