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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 GrEffect_DEFINED | 8 #ifndef GrEffect_DEFINED |
9 #define GrEffect_DEFINED | 9 #define GrEffect_DEFINED |
10 | 10 |
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78 memory pool. The ref count of an effect must reach 0 before the thread termi
nates and the pool | 78 memory pool. The ref count of an effect must reach 0 before the thread termi
nates and the pool |
79 is destroyed. To create a static effect use the macro GR_CREATE_STATIC_EFFEC
T declared below. | 79 is destroyed. To create a static effect use the macro GR_CREATE_STATIC_EFFEC
T declared below. |
80 */ | 80 */ |
81 class GrEffect : private SkRefCnt { | 81 class GrEffect : private SkRefCnt { |
82 public: | 82 public: |
83 SK_DECLARE_INST_COUNT(GrEffect) | 83 SK_DECLARE_INST_COUNT(GrEffect) |
84 | 84 |
85 /** | 85 /** |
86 * The types of vertex coordinates available to an effect in the vertex shad
er. Effects can | 86 * The types of vertex coordinates available to an effect in the vertex shad
er. Effects can |
87 * require their own vertex attribute but these coordinates are made availab
le by the framework | 87 * require their own vertex attribute but these coordinates are made availab
le by the framework |
88 * in all programs. kCustom_CoordsType is provided to signify that an altern
ative set of coords | 88 * in all programs. |
89 * is used (usually an explicit vertex attribute) but its meaning is determi
ned by the effect | |
90 * subclass. | |
91 */ | 89 */ |
92 enum CoordsType { | 90 enum CoordsType { |
93 kLocal_CoordsType, | 91 kLocal_CoordsType, |
94 kPosition_CoordsType, | 92 kPosition_CoordsType, |
95 | |
96 kCustom_CoordsType, | |
97 }; | 93 }; |
98 | 94 |
99 virtual ~GrEffect(); | 95 virtual ~GrEffect(); |
100 | 96 |
101 /** | 97 /** |
102 * This function is used to perform optimizations. When called the color and
validFlags params | 98 * This function is used to perform optimizations. When called the color and
validFlags params |
103 * indicate whether the input components to this effect in the FS will have
known values. | 99 * indicate whether the input components to this effect in the FS will have
known values. |
104 * validFlags is a bitfield of GrColorComponentFlags. The function updates b
oth params to | 100 * validFlags is a bitfield of GrColorComponentFlags. The function updates b
oth params to |
105 * indicate known values of its output. A component of the color param only
has meaning if the | 101 * indicate known values of its output. A component of the color param only
has meaning if the |
106 * corresponding bit in validFlags is set. | 102 * corresponding bit in validFlags is set. |
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335 };
\ | 331 };
\ |
336 static SkAlignedSStorage<k_##NAME##_StorageSize> g_##NAME##_Storage;
\ | 332 static SkAlignedSStorage<k_##NAME##_StorageSize> g_##NAME##_Storage;
\ |
337 static void* NAME##_RefLocation = (char*)g_##NAME##_Storage.get() + k_##NAME##_E
ffectRefOffset; \ | 333 static void* NAME##_RefLocation = (char*)g_##NAME##_Storage.get() + k_##NAME##_E
ffectRefOffset; \ |
338 static GrEffect* NAME##_Effect SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), EF
FECT_CLASS, ARGS);\ | 334 static GrEffect* NAME##_Effect SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), EF
FECT_CLASS, ARGS);\ |
339 static SkAutoTDestroy<GrEffect> NAME##_ad(NAME##_Effect);
\ | 335 static SkAutoTDestroy<GrEffect> NAME##_ad(NAME##_Effect);
\ |
340 static GrEffectRef* NAME(GrEffect::CreateStaticEffectRef(NAME##_RefLocation, NAM
E##_Effect)); \ | 336 static GrEffectRef* NAME(GrEffect::CreateStaticEffectRef(NAME##_RefLocation, NAM
E##_Effect)); \ |
341 static SkAutoTDestroy<GrEffectRef> NAME##_Ref_ad(NAME) | 337 static SkAutoTDestroy<GrEffectRef> NAME##_Ref_ad(NAME) |
342 | 338 |
343 | 339 |
344 #endif | 340 #endif |
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