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Side by Side Diff: include/core/SkColorFilter.h

Issue 1228683002: rename GrShaderDataManager -> GrProcessorDataManager (Closed) Base URL: https://skia.googlesource.com/skia.git@grfixuptests
Patch Set: rebase onto origin/master Created 5 years, 5 months ago
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1 /* 1 /*
2 * Copyright 2006 The Android Open Source Project 2 * Copyright 2006 The Android Open Source Project
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 SkColorFilter_DEFINED 8 #ifndef SkColorFilter_DEFINED
9 #define SkColorFilter_DEFINED 9 #define SkColorFilter_DEFINED
10 10
11 #include "SkColor.h" 11 #include "SkColor.h"
12 #include "SkFlattenable.h" 12 #include "SkFlattenable.h"
13 #include "SkTDArray.h" 13 #include "SkTDArray.h"
14 #include "SkXfermode.h" 14 #include "SkXfermode.h"
15 15
16 class SkBitmap; 16 class SkBitmap;
17 class GrProcessor; 17 class GrProcessor;
18 class GrContext; 18 class GrContext;
19 class GrShaderDataManager; 19 class GrProcessorDataManager;
20 20
21 /** 21 /**
22 * ColorFilters are optional objects in the drawing pipeline. When present in 22 * ColorFilters are optional objects in the drawing pipeline. When present in
23 * a paint, they are called with the "src" colors, and return new colors, which 23 * a paint, they are called with the "src" colors, and return new colors, which
24 * are then passed onto the next stage (either ImageFilter or Xfermode). 24 * are then passed onto the next stage (either ImageFilter or Xfermode).
25 * 25 *
26 * All subclasses are required to be reentrant-safe : it must be legal to share 26 * All subclasses are required to be reentrant-safe : it must be legal to share
27 * the same instance between several threads. 27 * the same instance between several threads.
28 */ 28 */
29 class SK_API SkColorFilter : public SkFlattenable { 29 class SK_API SkColorFilter : public SkFlattenable {
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128 * If it returns true, then 1 or more fragment processors will have been ap pended to the 128 * If it returns true, then 1 or more fragment processors will have been ap pended to the
129 * array, each of which has been ref'd, so that the caller is responsible f or calling unref() 129 * array, each of which has been ref'd, so that the caller is responsible f or calling unref()
130 * on them when they are finished. If more than one processor is appended, they will be 130 * on them when they are finished. If more than one processor is appended, they will be
131 * applied in FIFO order. 131 * applied in FIFO order.
132 * 132 *
133 * The fragment processor(s) must each return their color as a premul norma lized value 133 * The fragment processor(s) must each return their color as a premul norma lized value
134 * e.g. each component between [0..1] and each color component <= alpha. 134 * e.g. each component between [0..1] and each color component <= alpha.
135 * 135 *
136 * If the subclass returns false, then it should not modify the array at al l. 136 * If the subclass returns false, then it should not modify the array at al l.
137 */ 137 */
138 virtual bool asFragmentProcessors(GrContext*, GrShaderDataManager*, 138 virtual bool asFragmentProcessors(GrContext*, GrProcessorDataManager*,
139 SkTDArray<GrFragmentProcessor*>*) const { 139 SkTDArray<GrFragmentProcessor*>*) const {
140 return false; 140 return false;
141 } 141 }
142 142
143 SK_TO_STRING_PUREVIRT() 143 SK_TO_STRING_PUREVIRT()
144 144
145 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() 145 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
146 SK_DEFINE_FLATTENABLE_TYPE(SkColorFilter) 146 SK_DEFINE_FLATTENABLE_TYPE(SkColorFilter)
147 147
148 protected: 148 protected:
149 SkColorFilter() {} 149 SkColorFilter() {}
150 150
151 private: 151 private:
152 /* 152 /*
153 * Returns 1 if this is a single filter (not a composition of other filters ), otherwise it 153 * Returns 1 if this is a single filter (not a composition of other filters ), otherwise it
154 * reutrns the number of leaf-node filters in a composition. This should be the same value 154 * reutrns the number of leaf-node filters in a composition. This should be the same value
155 * as the number of GrFragmentProcessors returned by asFragmentProcessors's array parameter. 155 * as the number of GrFragmentProcessors returned by asFragmentProcessors's array parameter.
156 * 156 *
157 * e.g. compose(filter, compose(compose(filter, filter), filter)) --> 4 157 * e.g. compose(filter, compose(compose(filter, filter), filter)) --> 4
158 */ 158 */
159 virtual int privateComposedFilterCount() const { return 1; } 159 virtual int privateComposedFilterCount() const { return 1; }
160 friend class SkComposeColorFilter; 160 friend class SkComposeColorFilter;
161 161
162 typedef SkFlattenable INHERITED; 162 typedef SkFlattenable INHERITED;
163 }; 163 };
164 164
165 #endif 165 #endif
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