| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef GrGpuResource_DEFINED | 8 #ifndef GrGpuResource_DEFINED |
| 9 #define GrGpuResource_DEFINED | 9 #define GrGpuResource_DEFINED |
| 10 | 10 |
| 11 #include "GrResourceKey.h" | 11 #include "GrResourceKey.h" |
| 12 #include "GrTypesPriv.h" | 12 #include "GrTypesPriv.h" |
| 13 #include "SkData.h" | 13 #include "SkData.h" |
| 14 #include "SkInstCnt.h" | |
| 15 | 14 |
| 16 class GrContext; | 15 class GrContext; |
| 17 class GrGpu; | 16 class GrGpu; |
| 18 class GrResourceCache; | 17 class GrResourceCache; |
| 19 | 18 |
| 20 /** | 19 /** |
| 21 * Base class for GrGpuResource. Handles the various types of refs we need. Sepa
rated out as a base | 20 * Base class for GrGpuResource. Handles the various types of refs we need. Sepa
rated out as a base |
| 22 * class to isolate the ref-cnting behavior and provide friendship without expos
ing all of | 21 * class to isolate the ref-cnting behavior and provide friendship without expos
ing all of |
| 23 * GrGpuResource. | 22 * GrGpuResource. |
| 24 * | 23 * |
| (...skipping 14 matching lines...) Expand all Loading... |
| 39 * the ref cnt to reach zero and the other counts are zero, notifyRefCountIsZero
() will be called | 38 * the ref cnt to reach zero and the other counts are zero, notifyRefCountIsZero
() will be called |
| 40 * before notifyIsPurgeable(). Moreover, if notifyRefCountIsZero() returns false
then | 39 * before notifyIsPurgeable(). Moreover, if notifyRefCountIsZero() returns false
then |
| 41 * notifyAllRefCntsAreZero() won't be called at all. notifyRefCountIsZero() must
return false if the | 40 * notifyAllRefCntsAreZero() won't be called at all. notifyRefCountIsZero() must
return false if the |
| 42 * object may be deleted after notifyRefCntIsZero() returns. | 41 * object may be deleted after notifyRefCntIsZero() returns. |
| 43 * | 42 * |
| 44 * GrIORef and GrGpuResource are separate classes for organizational reasons and
to be | 43 * GrIORef and GrGpuResource are separate classes for organizational reasons and
to be |
| 45 * able to give access via friendship to only the functions related to pending I
O operations. | 44 * able to give access via friendship to only the functions related to pending I
O operations. |
| 46 */ | 45 */ |
| 47 template <typename DERIVED> class GrIORef : public SkNoncopyable { | 46 template <typename DERIVED> class GrIORef : public SkNoncopyable { |
| 48 public: | 47 public: |
| 49 SK_DECLARE_INST_COUNT(GrIORef) | |
| 50 | |
| 51 // Some of the signatures are written to mirror SkRefCnt so that GrGpuResour
ce can work with | 48 // Some of the signatures are written to mirror SkRefCnt so that GrGpuResour
ce can work with |
| 52 // templated helper classes (e.g. SkAutoTUnref). However, we have different
categories of | 49 // templated helper classes (e.g. SkAutoTUnref). However, we have different
categories of |
| 53 // refs (e.g. pending reads). We also don't require thread safety as GrCache
able objects are | 50 // refs (e.g. pending reads). We also don't require thread safety as GrCache
able objects are |
| 54 // not intended to cross thread boundaries. | 51 // not intended to cross thread boundaries. |
| 55 void ref() const { | 52 void ref() const { |
| 56 this->validate(); | 53 this->validate(); |
| 57 ++fRefCnt; | 54 ++fRefCnt; |
| 58 } | 55 } |
| 59 | 56 |
| 60 void unref() const { | 57 void unref() const { |
| 61 this->validate(); | 58 this->validate(); |
| 62 | 59 |
| 63 if (!(--fRefCnt)) { | 60 if (!(--fRefCnt)) { |
| 64 if (!static_cast<const DERIVED*>(this)->notifyRefCountIsZero()) { | 61 if (!static_cast<const DERIVED*>(this)->notifyRefCountIsZero()) { |
| 65 return; | 62 return; |
| 66 } | 63 } |
| 67 } | 64 } |
| 68 | 65 |
| 69 this->didRemoveRefOrPendingIO(kRef_CntType); | 66 this->didRemoveRefOrPendingIO(kRef_CntType); |
| 70 } | 67 } |
| 71 | 68 |
| 72 void validate() const { | 69 void validate() const { |
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| 134 friend class GrResourceCache; // to check IO ref counts. | 131 friend class GrResourceCache; // to check IO ref counts. |
| 135 | 132 |
| 136 template <typename, GrIOType> friend class GrPendingIOResource; | 133 template <typename, GrIOType> friend class GrPendingIOResource; |
| 137 }; | 134 }; |
| 138 | 135 |
| 139 /** | 136 /** |
| 140 * Base class for objects that can be kept in the GrResourceCache. | 137 * Base class for objects that can be kept in the GrResourceCache. |
| 141 */ | 138 */ |
| 142 class SK_API GrGpuResource : public GrIORef<GrGpuResource> { | 139 class SK_API GrGpuResource : public GrIORef<GrGpuResource> { |
| 143 public: | 140 public: |
| 144 SK_DECLARE_INST_COUNT(GrGpuResource) | 141 |
| 145 | 142 |
| 146 enum LifeCycle { | 143 enum LifeCycle { |
| 147 /** | 144 /** |
| 148 * The resource is cached and owned by Skia. Resources with this status
may be kept alive | 145 * The resource is cached and owned by Skia. Resources with this status
may be kept alive |
| 149 * by the cache as either scratch or unique resources even when there ar
e no refs to them. | 146 * by the cache as either scratch or unique resources even when there ar
e no refs to them. |
| 150 * The cache may release them whenever there are no refs. | 147 * The cache may release them whenever there are no refs. |
| 151 */ | 148 */ |
| 152 kCached_LifeCycle, | 149 kCached_LifeCycle, |
| 153 | 150 |
| 154 /** | 151 /** |
| (...skipping 178 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 333 LifeCycle fLifeCycle; | 330 LifeCycle fLifeCycle; |
| 334 const uint32_t fUniqueID; | 331 const uint32_t fUniqueID; |
| 335 | 332 |
| 336 SkAutoTUnref<const SkData> fData; | 333 SkAutoTUnref<const SkData> fData; |
| 337 | 334 |
| 338 typedef GrIORef<GrGpuResource> INHERITED; | 335 typedef GrIORef<GrGpuResource> INHERITED; |
| 339 friend class GrIORef<GrGpuResource>; // to access notifyAllCntsAreZero and n
otifyRefCntIsZero. | 336 friend class GrIORef<GrGpuResource>; // to access notifyAllCntsAreZero and n
otifyRefCntIsZero. |
| 340 }; | 337 }; |
| 341 | 338 |
| 342 #endif | 339 #endif |
| OLD | NEW |