Robert Phillips | ae7d3f3 | 2017-09-21 08:26:08 -0400 | [diff] [blame^] | 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 "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(GrResourceCache* cache, const GrUniqueKey& key) { |
| 19 | fTextureProxy->setUniqueKey(cache, key); |
| 20 | } |
| 21 | |
| 22 | void clearUniqueKey() { |
| 23 | fTextureProxy->clearUniqueKey(); |
| 24 | } |
| 25 | |
| 26 | explicit CacheAccess(GrTextureProxy* textureProxy) : fTextureProxy(textureProxy) {} |
| 27 | CacheAccess(const CacheAccess&) {} // unimpl |
| 28 | CacheAccess& operator=(const CacheAccess&); // unimpl |
| 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 GrResourceCache; // to use this type |
| 38 | }; |
| 39 | |
| 40 | inline GrTextureProxy::CacheAccess GrTextureProxy::cacheAccess() { return CacheAccess(this); } |
| 41 | |
| 42 | inline const GrTextureProxy::CacheAccess GrTextureProxy::cacheAccess() const { |
| 43 | return CacheAccess(const_cast<GrTextureProxy*>(this)); |
| 44 | } |
| 45 | |
| 46 | #endif |