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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2014 Google Inc. | 3 * Copyright 2014 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #ifndef GrGpuResourceCacheAccess_DEFINED | 9 #ifndef GrGpuResourceCacheAccess_DEFINED |
10 #define GrGpuResourceCacheAccess_DEFINED | 10 #define GrGpuResourceCacheAccess_DEFINED |
11 | 11 |
12 #include "GrGpuResource.h" | 12 #include "GrGpuResource.h" |
13 | 13 |
14 /** | 14 /** |
15 * This class allows code internal to Skia privileged access to manage the cache
keys of a | 15 * This class allows code internal to Skia privileged access to manage the cache
keys of a |
16 * GrGpuResource object. | 16 * GrGpuResource object. |
17 */ | 17 */ |
18 class GrGpuResource::CacheAccess { | 18 class GrGpuResource::CacheAccess { |
19 public: | 19 public: |
20 /** | 20 /** |
21 * Sets a content key for the resource. If the resource was previously cache
d as scratch it will | 21 * Sets a content key for the resource. If the resource was previously cache
d as scratch it will |
22 * be converted to a content resource. Currently this may only be called onc
e per resource. It | 22 * be converted to a content resource. Currently this may only be called onc
e per resource. It |
23 * fails if there is already a resource with the same content key. TODO: mak
e this supplant the | 23 * fails if there is already a resource with the same content key. TODO: mak
e this supplant the |
24 * resource that currently is using the content key, allow resources' conten
t keys to change, | 24 * resource that currently is using the content key, allow resources' conten
t keys to change, |
25 * and allow removal of a content key to convert a resource back to scratch. | 25 * and allow removal of a content key to convert a resource back to scratch. |
26 */ | 26 */ |
27 bool setContentKey(const GrResourceKey& contentKey) { | 27 bool setContentKey(const GrContentKey& contentKey) { |
28 return fResource->setContentKey(contentKey); | 28 return fResource->setContentKey(contentKey); |
29 } | 29 } |
30 | 30 |
31 /** | 31 /** |
32 * Is the resource currently cached as scratch? This means it has a valid sc
ratch key and does | 32 * Is the resource currently cached as scratch? This means it has a valid sc
ratch key and does |
33 * not have a content key. | 33 * not have a content key. |
34 */ | 34 */ |
35 bool isScratch() const { | 35 bool isScratch() const { |
36 return NULL == this->getContentKey() && fResource->fScratchKey.isValid()
; | 36 return !this->getContentKey().isValid() && fResource->fScratchKey.isVali
d(); |
37 } | 37 } |
38 | 38 |
39 /** | 39 /** |
40 * If this resource can be used as a scratch resource this returns a valid s
cratch key. | 40 * If this resource can be used as a scratch resource this returns a valid s
cratch key. |
41 * Otherwise it returns a key for which isNullScratch is true. The resource
may currently be | 41 * Otherwise it returns a key for which isNullScratch is true. The resource
may currently be |
42 * used as a content resource rather than scratch. Check isScratch(). | 42 * used as a content resource rather than scratch. Check isScratch(). |
43 */ | 43 */ |
44 const GrScratchKey& getScratchKey() const { return fResource->fScratchKey; } | 44 const GrScratchKey& getScratchKey() const { return fResource->fScratchKey; } |
45 | 45 |
46 /** | 46 /** |
47 * If the resource has a scratch key, the key will be removed. Since scratch
keys are installed | 47 * If the resource has a scratch key, the key will be removed. Since scratch
keys are installed |
48 * at resource creation time, this means the resource will never again be us
ed as scratch. | 48 * at resource creation time, this means the resource will never again be us
ed as scratch. |
49 */ | 49 */ |
50 void removeScratchKey() const { fResource->removeScratchKey(); } | 50 void removeScratchKey() const { fResource->removeScratchKey(); } |
51 | 51 |
52 /** | 52 /** |
53 * If the resource is currently cached by a content key, the key is returned
, otherwise NULL. | 53 * If the resource is currently cached by a content key, the key is returned
, otherwise NULL. |
54 */ | 54 */ |
55 const GrResourceKey* getContentKey() const { | 55 const GrContentKey& getContentKey() const { return fResource->fContentKey; } |
56 if (fResource->fFlags & GrGpuResource::kContentKeySet_Flag) { | |
57 return &fResource->fContentKey; | |
58 } | |
59 return NULL; | |
60 } | |
61 | 56 |
62 /** | 57 /** |
63 * Is the resource object wrapping an externally allocated GPU resource? | 58 * Is the resource object wrapping an externally allocated GPU resource? |
64 */ | 59 */ |
65 bool isWrapped() const { return GrGpuResource::kWrapped_LifeCycle == fResour
ce->fLifeCycle; } | 60 bool isWrapped() const { return GrGpuResource::kWrapped_LifeCycle == fResour
ce->fLifeCycle; } |
66 | 61 |
67 /** | 62 /** |
68 * Does the resource count against the resource budget? | 63 * Does the resource count against the resource budget? |
69 */ | 64 */ |
70 bool isBudgeted() const { return GrGpuResource::kCached_LifeCycle == fResour
ce->fLifeCycle; } | 65 bool isBudgeted() const { return GrGpuResource::kCached_LifeCycle == fResour
ce->fLifeCycle; } |
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109 friend class GrGpuResource; // to construct/copy this type. | 104 friend class GrGpuResource; // to construct/copy this type. |
110 }; | 105 }; |
111 | 106 |
112 inline GrGpuResource::CacheAccess GrGpuResource::cacheAccess() { return CacheAcc
ess(this); } | 107 inline GrGpuResource::CacheAccess GrGpuResource::cacheAccess() { return CacheAcc
ess(this); } |
113 | 108 |
114 inline const GrGpuResource::CacheAccess GrGpuResource::cacheAccess() const { | 109 inline const GrGpuResource::CacheAccess GrGpuResource::cacheAccess() const { |
115 return CacheAccess(const_cast<GrGpuResource*>(this)); | 110 return CacheAccess(const_cast<GrGpuResource*>(this)); |
116 } | 111 } |
117 | 112 |
118 #endif | 113 #endif |
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