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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" | 14 #include "SkInstCnt.h" |
15 #include "SkTInternalLList.h" | 15 #include "SkTInternalLList.h" |
16 | 16 |
17 class GrContext; | 17 class GrContext; |
18 class GrGpu; | 18 class GrGpu; |
19 class GrResourceCache2; | 19 class GrResourceCache; |
20 | 20 |
21 /** | 21 /** |
22 * Base class for GrGpuResource. Handles the various types of refs we need. Sepa
rated out as a base | 22 * Base class for GrGpuResource. Handles the various types of refs we need. Sepa
rated out as a base |
23 * class to isolate the ref-cnting behavior and provide friendship without expos
ing all of | 23 * class to isolate the ref-cnting behavior and provide friendship without expos
ing all of |
24 * GrGpuResource. | 24 * GrGpuResource. |
25 * | 25 * |
26 * Gpu resources can have three types of refs: | 26 * Gpu resources can have three types of refs: |
27 * 1) Normal ref (+ by ref(), - by unref()): These are used by code that is is
suing draw calls | 27 * 1) Normal ref (+ by ref(), - by unref()): These are used by code that is is
suing draw calls |
28 * that read and write the resource via GrDrawTarget and by any object that
must own a | 28 * that read and write the resource via GrDrawTarget and by any object that
must own a |
29 * GrGpuResource and is itself owned (directly or indirectly) by Skia-clien
t code. | 29 * GrGpuResource and is itself owned (directly or indirectly) by Skia-clien
t code. |
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106 static_cast<const DERIVED*>(this)->notifyIsPurgeable(); | 106 static_cast<const DERIVED*>(this)->notifyIsPurgeable(); |
107 } | 107 } |
108 } | 108 } |
109 | 109 |
110 mutable int32_t fRefCnt; | 110 mutable int32_t fRefCnt; |
111 mutable int32_t fPendingReads; | 111 mutable int32_t fPendingReads; |
112 mutable int32_t fPendingWrites; | 112 mutable int32_t fPendingWrites; |
113 | 113 |
114 // This class is used to manage conversion of refs to pending reads/writes. | 114 // This class is used to manage conversion of refs to pending reads/writes. |
115 friend class GrGpuResourceRef; | 115 friend class GrGpuResourceRef; |
116 friend class GrResourceCache2; // to check IO ref counts. | 116 friend class GrResourceCache; // to check IO ref counts. |
117 | 117 |
118 template <typename, GrIOType> friend class GrPendingIOResource; | 118 template <typename, GrIOType> friend class GrPendingIOResource; |
119 }; | 119 }; |
120 | 120 |
121 /** | 121 /** |
122 * Base class for objects that can be kept in the GrResourceCache2. | 122 * Base class for objects that can be kept in the GrResourceCache. |
123 */ | 123 */ |
124 class SK_API GrGpuResource : public GrIORef<GrGpuResource> { | 124 class SK_API GrGpuResource : public GrIORef<GrGpuResource> { |
125 public: | 125 public: |
126 SK_DECLARE_INST_COUNT(GrGpuResource) | 126 SK_DECLARE_INST_COUNT(GrGpuResource) |
127 | 127 |
128 enum LifeCycle { | 128 enum LifeCycle { |
129 /** | 129 /** |
130 * The resource is cached and owned by Skia. Resources with this status
may be kept alive | 130 * The resource is cached and owned by Skia. Resources with this status
may be kept alive |
131 * by the cache as either scratch or content resources even when there a
re no refs to them. | 131 * by the cache as either scratch or content resources even when there a
re no refs to them. |
132 * The cache may release them whenever there are no refs. | 132 * The cache may release them whenever there are no refs. |
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269 void removeScratchKey(); | 269 void removeScratchKey(); |
270 void makeBudgeted(); | 270 void makeBudgeted(); |
271 void makeUnbudgeted(); | 271 void makeUnbudgeted(); |
272 | 272 |
273 #ifdef SK_DEBUG | 273 #ifdef SK_DEBUG |
274 friend class GrGpu; // for assert in GrGpu to access getGpu | 274 friend class GrGpu; // for assert in GrGpu to access getGpu |
275 #endif | 275 #endif |
276 | 276 |
277 static uint32_t CreateUniqueID(); | 277 static uint32_t CreateUniqueID(); |
278 | 278 |
279 // We're in an internal doubly linked list owned by GrResourceCache2 | 279 // We're in an internal doubly linked list owned by GrResourceCache |
280 SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrGpuResource); | 280 SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrGpuResource); |
281 | 281 |
282 | 282 |
283 static const size_t kInvalidGpuMemorySize = ~static_cast<size_t>(0); | 283 static const size_t kInvalidGpuMemorySize = ~static_cast<size_t>(0); |
284 GrScratchKey fScratchKey; | 284 GrScratchKey fScratchKey; |
285 GrContentKey fContentKey; | 285 GrContentKey fContentKey; |
286 | 286 |
287 // This is not ref'ed but abandon() or release() will be called before the G
rGpu object | 287 // This is not ref'ed but abandon() or release() will be called before the G
rGpu object |
288 // is destroyed. Those calls set will this to NULL. | 288 // is destroyed. Those calls set will this to NULL. |
289 GrGpu* fGpu; | 289 GrGpu* fGpu; |
290 mutable size_t fGpuMemorySize; | 290 mutable size_t fGpuMemorySize; |
291 | 291 |
292 LifeCycle fLifeCycle; | 292 LifeCycle fLifeCycle; |
293 const uint32_t fUniqueID; | 293 const uint32_t fUniqueID; |
294 | 294 |
295 SkAutoTUnref<const SkData> fData; | 295 SkAutoTUnref<const SkData> fData; |
296 | 296 |
297 typedef GrIORef<GrGpuResource> INHERITED; | 297 typedef GrIORef<GrGpuResource> INHERITED; |
298 friend class GrIORef<GrGpuResource>; // to access notifyIsPurgeable. | 298 friend class GrIORef<GrGpuResource>; // to access notifyIsPurgeable. |
299 }; | 299 }; |
300 | 300 |
301 #endif | 301 #endif |
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