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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #include "SkDiscretePathEffect.h" | 10 #include "SkDiscretePathEffect.h" |
11 #include "SkReadBuffer.h" | 11 #include "SkReadBuffer.h" |
12 #include "SkWriteBuffer.h" | 12 #include "SkWriteBuffer.h" |
13 #include "SkPathMeasure.h" | 13 #include "SkPathMeasure.h" |
14 #include "SkStrokeRec.h" | 14 #include "SkStrokeRec.h" |
15 | 15 |
| 16 sk_sp<SkPathEffect> SkDiscretePathEffect::Make(SkScalar segLength, SkScalar devi
ation, |
| 17 uint32_t seedAssist) { |
| 18 return sk_sp<SkPathEffect>(new SkDiscretePathEffect(segLength, deviation, se
edAssist)); |
| 19 } |
| 20 |
16 static void Perterb(SkPoint* p, const SkVector& tangent, SkScalar scale) { | 21 static void Perterb(SkPoint* p, const SkVector& tangent, SkScalar scale) { |
17 SkVector normal = tangent; | 22 SkVector normal = tangent; |
18 normal.rotateCCW(); | 23 normal.rotateCCW(); |
19 normal.setLength(scale); | 24 normal.setLength(scale); |
20 *p += normal; | 25 *p += normal; |
21 } | 26 } |
22 | 27 |
23 SkDiscretePathEffect::SkDiscretePathEffect(SkScalar segLength, | 28 SkDiscretePathEffect::SkDiscretePathEffect(SkScalar segLength, |
24 SkScalar deviation, | 29 SkScalar deviation, |
25 uint32_t seedAssist) | 30 uint32_t seedAssist) |
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114 } | 119 } |
115 } | 120 } |
116 } while (meas.nextContour()); | 121 } while (meas.nextContour()); |
117 return true; | 122 return true; |
118 } | 123 } |
119 | 124 |
120 SkFlattenable* SkDiscretePathEffect::CreateProc(SkReadBuffer& buffer) { | 125 SkFlattenable* SkDiscretePathEffect::CreateProc(SkReadBuffer& buffer) { |
121 SkScalar segLength = buffer.readScalar(); | 126 SkScalar segLength = buffer.readScalar(); |
122 SkScalar perterb = buffer.readScalar(); | 127 SkScalar perterb = buffer.readScalar(); |
123 uint32_t seed = buffer.readUInt(); | 128 uint32_t seed = buffer.readUInt(); |
124 return Create(segLength, perterb, seed); | 129 return Make(segLength, perterb, seed).release(); |
125 } | 130 } |
126 | 131 |
127 void SkDiscretePathEffect::flatten(SkWriteBuffer& buffer) const { | 132 void SkDiscretePathEffect::flatten(SkWriteBuffer& buffer) const { |
128 buffer.writeScalar(fSegLength); | 133 buffer.writeScalar(fSegLength); |
129 buffer.writeScalar(fPerterb); | 134 buffer.writeScalar(fPerterb); |
130 buffer.writeUInt(fSeedAssist); | 135 buffer.writeUInt(fSeedAssist); |
131 } | 136 } |
132 | 137 |
133 #ifndef SK_IGNORE_TO_STRING | 138 #ifndef SK_IGNORE_TO_STRING |
134 void SkDiscretePathEffect::toString(SkString* str) const { | 139 void SkDiscretePathEffect::toString(SkString* str) const { |
135 str->appendf("SkDiscretePathEffect: ("); | 140 str->appendf("SkDiscretePathEffect: ("); |
136 str->appendf("segLength: %.2f deviation: %.2f seed %d", fSegLength, fPerterb
, fSeedAssist); | 141 str->appendf("segLength: %.2f deviation: %.2f seed %d", fSegLength, fPerterb
, fSeedAssist); |
137 str->append(")"); | 142 str->append(")"); |
138 } | 143 } |
139 #endif | 144 #endif |
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