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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 GrProcessor_DEFINED | 8 #ifndef GrProcessor_DEFINED |
9 #define GrProcessor_DEFINED | 9 #define GrProcessor_DEFINED |
10 | 10 |
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94 | 94 |
95 protected: | 95 protected: |
96 GrProcessor() : fClassID(kIllegalProcessorClassID), fWillReadFragmentPositio
n(false) {} | 96 GrProcessor() : fClassID(kIllegalProcessorClassID), fWillReadFragmentPositio
n(false) {} |
97 | 97 |
98 /** | 98 /** |
99 * Subclasses call this from their constructor to register GrTextureAccesses
. The processor | 99 * Subclasses call this from their constructor to register GrTextureAccesses
. The processor |
100 * subclass manages the lifetime of the accesses (this function only stores
a pointer). The | 100 * subclass manages the lifetime of the accesses (this function only stores
a pointer). The |
101 * GrTextureAccess is typically a member field of the GrProcessor subclass.
This must only be | 101 * GrTextureAccess is typically a member field of the GrProcessor subclass.
This must only be |
102 * called from the constructor because GrProcessors are immutable. | 102 * called from the constructor because GrProcessors are immutable. |
103 */ | 103 */ |
104 void addTextureAccess(const GrTextureAccess* textureAccess); | 104 virtual void addTextureAccess(const GrTextureAccess* textureAccess); |
105 | 105 |
106 bool hasSameTextureAccesses(const GrProcessor&) const; | 106 bool hasSameTextureAccesses(const GrProcessor&) const; |
107 | 107 |
108 /** | 108 /** |
109 * If the prcoessor will generate a backend-specific processor that will rea
d the fragment | 109 * If the prcoessor will generate a backend-specific processor that will rea
d the fragment |
110 * position in the FS then it must call this method from its constructor. Ot
herwise, the | 110 * position in the FS then it must call this method from its constructor. Ot
herwise, the |
111 * request to access the fragment position will be denied. | 111 * request to access the fragment position will be denied. |
112 */ | 112 */ |
113 void setWillReadFragmentPosition() { fWillReadFragmentPosition = true; } | 113 void setWillReadFragmentPosition() { fWillReadFragmentPosition = true; } |
114 | 114 |
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146 /** | 146 /** |
147 * This creates a processor outside of the memory pool. The processor's destruct
or will be called | 147 * This creates a processor outside of the memory pool. The processor's destruct
or will be called |
148 * at global destruction time. NAME will be the name of the created instance. | 148 * at global destruction time. NAME will be the name of the created instance. |
149 */ | 149 */ |
150 #define GR_CREATE_STATIC_PROCESSOR(NAME, PROC_CLASS, ARGS)
\ | 150 #define GR_CREATE_STATIC_PROCESSOR(NAME, PROC_CLASS, ARGS)
\ |
151 static SkAlignedSStorage<sizeof(PROC_CLASS)> g_##NAME##_Storage;
\ | 151 static SkAlignedSStorage<sizeof(PROC_CLASS)> g_##NAME##_Storage;
\ |
152 static PROC_CLASS* NAME SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), PROC_CLAS
S, ARGS); \ | 152 static PROC_CLASS* NAME SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), PROC_CLAS
S, ARGS); \ |
153 static SkAutoTDestroy<GrProcessor> NAME##_ad(NAME); | 153 static SkAutoTDestroy<GrProcessor> NAME##_ad(NAME); |
154 | 154 |
155 #endif | 155 #endif |
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