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Side by Side Diff: include/effects/SkGradientShader.h

Issue 1114243005: remove (redundant) twopointradial shader (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 7 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 SkGradientShader_DEFINED 8 #ifndef SkGradientShader_DEFINED
9 #define SkGradientShader_DEFINED 9 #define SkGradientShader_DEFINED
10 10
(...skipping 62 matching lines...) Expand 10 before | Expand all | Expand 10 after
73 const SkColor colors[], const SkScalar pos[], int count, 73 const SkColor colors[], const SkScalar pos[], int count,
74 SkShader::TileMode mode, 74 SkShader::TileMode mode,
75 uint32_t flags, const SkMatrix* localMatrix); 75 uint32_t flags, const SkMatrix* localMatrix);
76 76
77 static SkShader* CreateRadial(const SkPoint& center, SkScalar radius, 77 static SkShader* CreateRadial(const SkPoint& center, SkScalar radius,
78 const SkColor colors[], const SkScalar pos[], int count, 78 const SkColor colors[], const SkScalar pos[], int count,
79 SkShader::TileMode mode) { 79 SkShader::TileMode mode) {
80 return CreateRadial(center, radius, colors, pos, count, mode, 0, NULL); 80 return CreateRadial(center, radius, colors, pos, count, mode, 0, NULL);
81 } 81 }
82 82
83 /** Returns a shader that generates a radial gradient given the start positi on, start radius, end position and end radius.
84 <p />
85 CreateTwoPointRadial returns a shader with a reference count of 1.
86 The caller should decrement the shader's reference count when done with the shader.
87 It is an error for colorCount to be < 2, for startRadius or endRadius to be < 0, or for
88 startRadius to be equal to endRadius.
89 @param start The center of the start circle for this gradient
90 @param startRadius Must be positive. The radius of the start circle f or this gradient.
91 @param end The center of the end circle for this gradient
92 @param endRadius Must be positive. The radius of the end circle for th is gradient.
93 @param colors The array[count] of colors, to be distributed between th e center and edge of the circle
94 @param pos May be NULL. The array[count] of SkScalars, or NULL, of the relative position of
95 each corresponding color in the colors array. If this is NULL,
96 the the colors are distributed evenly between the center and edge of the circle.
97 If this is not null, the values must begin with 0, end w ith 1.0, and
98 intermediate values must be strictly increasing.
99 @param count Must be >= 2. The number of colors (and pos if not NULL) entries
100 @param mode The tiling mode
101 */
102 static SkShader* CreateTwoPointRadial(const SkPoint& start, SkScalar startRa dius,
103 const SkPoint& end, SkScalar endRadius ,
104 const SkColor colors[], const SkScalar pos[], int count,
105 SkShader::TileMode mode,
106 uint32_t flags, const SkMatrix* localM atrix);
107
108 static SkShader* CreateTwoPointRadial(const SkPoint& start, SkScalar startRa dius,
109 const SkPoint& end, SkScalar endRadius ,
110 const SkColor colors[], const SkScalar pos[], int count,
111 SkShader::TileMode mode) {
112 return CreateTwoPointRadial(start, startRadius, end, endRadius, colors, pos, count, mode,
113 0, NULL);
114 }
115
116 /** 83 /**
117 * Returns a shader that generates a conical gradient given two circles, or 84 * Returns a shader that generates a conical gradient given two circles, or
118 * returns NULL if the inputs are invalid. The gradient interprets the 85 * returns NULL if the inputs are invalid. The gradient interprets the
119 * two circles according to the following HTML spec. 86 * two circles according to the following HTML spec.
120 * http://dev.w3.org/html5/2dcontext/#dom-context-2d-createradialgradient 87 * http://dev.w3.org/html5/2dcontext/#dom-context-2d-createradialgradient
121 */ 88 */
122 static SkShader* CreateTwoPointConical(const SkPoint& start, SkScalar startR adius, 89 static SkShader* CreateTwoPointConical(const SkPoint& start, SkScalar startR adius,
123 const SkPoint& end, SkScalar endRadiu s, 90 const SkPoint& end, SkScalar endRadiu s,
124 const SkColor colors[], const SkScala r pos[], int count, 91 const SkColor colors[], const SkScala r pos[], int count,
125 SkShader::TileMode mode, 92 SkShader::TileMode mode,
(...skipping 28 matching lines...) Expand all
154 121
155 static SkShader* CreateSweep(SkScalar cx, SkScalar cy, 122 static SkShader* CreateSweep(SkScalar cx, SkScalar cy,
156 const SkColor colors[], const SkScalar pos[], i nt count) { 123 const SkColor colors[], const SkScalar pos[], i nt count) {
157 return CreateSweep(cx, cy, colors, pos, count, 0, NULL); 124 return CreateSweep(cx, cy, colors, pos, count, 0, NULL);
158 } 125 }
159 126
160 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() 127 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
161 }; 128 };
162 129
163 #endif 130 #endif
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