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

Issue 1388113002: Bye bye processor data manager (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: remove files Created 5 years, 2 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 GrContext; 16 class GrContext;
17 class GrFragmentProcessor; 17 class GrFragmentProcessor;
18 class GrProcessorDataManager;
19 class SkBitmap; 18 class SkBitmap;
20 19
21 /** 20 /**
22 * ColorFilters are optional objects in the drawing pipeline. When present in 21 * 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 22 * 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). 23 * are then passed onto the next stage (either ImageFilter or Xfermode).
25 * 24 *
26 * All subclasses are required to be reentrant-safe : it must be legal to share 25 * All subclasses are required to be reentrant-safe : it must be legal to share
27 * the same instance between several threads. 26 * the same instance between several threads.
28 */ 27 */
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125 124
126 /** 125 /**
127 * A subclass may implement this factory function to work with the GPU back end. It returns 126 * A subclass may implement this factory function to work with the GPU back end. It returns
128 * a GrFragmentProcessor that implemets the color filter in GPU shader code . 127 * a GrFragmentProcessor that implemets the color filter in GPU shader code .
129 * 128 *
130 * The fragment processor receives a premultiplied input color and produces a premultiplied 129 * The fragment processor receives a premultiplied input color and produces a premultiplied
131 * output color. 130 * output color.
132 * 131 *
133 * A null return indicates that the color filter isn't implemented for the GPU backend. 132 * A null return indicates that the color filter isn't implemented for the GPU backend.
134 */ 133 */
135 virtual const GrFragmentProcessor* asFragmentProcessor(GrContext*, 134 virtual const GrFragmentProcessor* asFragmentProcessor(GrContext*) const {
136 GrProcessorDataManage r*) const {
137 return nullptr; 135 return nullptr;
138 } 136 }
139 137
140 bool affectsTransparentBlack() const { 138 bool affectsTransparentBlack() const {
141 return this->filterColor(0) != 0; 139 return this->filterColor(0) != 0;
142 } 140 }
143 141
144 SK_TO_STRING_PUREVIRT() 142 SK_TO_STRING_PUREVIRT()
145 143
146 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() 144 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
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157 * 155 *
158 * e.g. compose(filter, compose(compose(filter, filter), filter)) --> 4 156 * e.g. compose(filter, compose(compose(filter, filter), filter)) --> 4
159 */ 157 */
160 virtual int privateComposedFilterCount() const { return 1; } 158 virtual int privateComposedFilterCount() const { return 1; }
161 friend class SkComposeColorFilter; 159 friend class SkComposeColorFilter;
162 160
163 typedef SkFlattenable INHERITED; 161 typedef SkFlattenable INHERITED;
164 }; 162 };
165 163
166 #endif 164 #endif
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