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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
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 #include "SkBlurDrawLooper.h" | 8 #include "SkBlurDrawLooper.h" |
9 #include "SkBlurMask.h" // just for SkBlurMask::ConvertRadiusToSigma | 9 #include "SkBlurMask.h" // just for SkBlurMask::ConvertRadiusToSigma |
10 #include "SkBlurMaskFilter.h" | 10 #include "SkBlurMaskFilter.h" |
11 #include "SkCanvas.h" | 11 #include "SkCanvas.h" |
12 #include "SkColorFilter.h" | 12 #include "SkColorFilter.h" |
13 #include "SkFlattenableBuffers.h" | 13 #include "SkReadBuffer.h" |
| 14 #include "SkWriteBuffer.h" |
14 #include "SkMaskFilter.h" | 15 #include "SkMaskFilter.h" |
15 #include "SkPaint.h" | 16 #include "SkPaint.h" |
16 #include "SkString.h" | 17 #include "SkString.h" |
17 #include "SkStringUtils.h" | 18 #include "SkStringUtils.h" |
18 | 19 |
19 SkBlurDrawLooper::SkBlurDrawLooper(SkScalar radius, SkScalar dx, SkScalar dy, | 20 SkBlurDrawLooper::SkBlurDrawLooper(SkScalar radius, SkScalar dx, SkScalar dy, |
20 SkColor color, uint32_t flags) { | 21 SkColor color, uint32_t flags) { |
21 this->init(SkBlurMask::ConvertRadiusToSigma(radius), dx, dy, color, flags); | 22 this->init(SkBlurMask::ConvertRadiusToSigma(radius), dx, dy, color, flags); |
22 } | 23 } |
23 | 24 |
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56 // be baked into the blurred mask. | 57 // be baked into the blurred mask. |
57 SkColor opaqueColor = SkColorSetA(color, 255); | 58 SkColor opaqueColor = SkColorSetA(color, 255); |
58 //The SrcIn xfer mode will multiply 'color' by the incoming alpha | 59 //The SrcIn xfer mode will multiply 'color' by the incoming alpha |
59 fColorFilter = SkColorFilter::CreateModeFilter(opaqueColor, | 60 fColorFilter = SkColorFilter::CreateModeFilter(opaqueColor, |
60 SkXfermode::kSrcIn_Mode); | 61 SkXfermode::kSrcIn_Mode); |
61 } else { | 62 } else { |
62 fColorFilter = NULL; | 63 fColorFilter = NULL; |
63 } | 64 } |
64 } | 65 } |
65 | 66 |
66 SkBlurDrawLooper::SkBlurDrawLooper(SkFlattenableReadBuffer& buffer) | 67 SkBlurDrawLooper::SkBlurDrawLooper(SkReadBuffer& buffer) |
67 : INHERITED(buffer) { | 68 : INHERITED(buffer) { |
68 | 69 |
69 fDx = buffer.readScalar(); | 70 fDx = buffer.readScalar(); |
70 fDy = buffer.readScalar(); | 71 fDy = buffer.readScalar(); |
71 fBlurColor = buffer.readColor(); | 72 fBlurColor = buffer.readColor(); |
72 fBlur = buffer.readMaskFilter(); | 73 fBlur = buffer.readMaskFilter(); |
73 fColorFilter = buffer.readColorFilter(); | 74 fColorFilter = buffer.readColorFilter(); |
74 fBlurFlags = buffer.readUInt() & kAll_BlurFlag; | 75 fBlurFlags = buffer.readUInt() & kAll_BlurFlag; |
75 } | 76 } |
76 | 77 |
77 SkBlurDrawLooper::~SkBlurDrawLooper() { | 78 SkBlurDrawLooper::~SkBlurDrawLooper() { |
78 SkSafeUnref(fBlur); | 79 SkSafeUnref(fBlur); |
79 SkSafeUnref(fColorFilter); | 80 SkSafeUnref(fColorFilter); |
80 } | 81 } |
81 | 82 |
82 void SkBlurDrawLooper::flatten(SkFlattenableWriteBuffer& buffer) const { | 83 void SkBlurDrawLooper::flatten(SkWriteBuffer& buffer) const { |
83 this->INHERITED::flatten(buffer); | 84 this->INHERITED::flatten(buffer); |
84 buffer.writeScalar(fDx); | 85 buffer.writeScalar(fDx); |
85 buffer.writeScalar(fDy); | 86 buffer.writeScalar(fDy); |
86 buffer.writeColor(fBlurColor); | 87 buffer.writeColor(fBlurColor); |
87 buffer.writeFlattenable(fBlur); | 88 buffer.writeFlattenable(fBlur); |
88 buffer.writeFlattenable(fColorFilter); | 89 buffer.writeFlattenable(fColorFilter); |
89 buffer.writeUInt(fBlurFlags); | 90 buffer.writeUInt(fBlurFlags); |
90 } | 91 } |
91 | 92 |
92 void SkBlurDrawLooper::init(SkCanvas*) { | 93 void SkBlurDrawLooper::init(SkCanvas*) { |
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157 &needsSeparator); | 158 &needsSeparator); |
158 SkAddFlagToString(str, SkToBool(kHighQuality_BlurFlag & fBlurFlags), "Hi
ghQuality", | 159 SkAddFlagToString(str, SkToBool(kHighQuality_BlurFlag & fBlurFlags), "Hi
ghQuality", |
159 &needsSeparator); | 160 &needsSeparator); |
160 } | 161 } |
161 str->append(")"); | 162 str->append(")"); |
162 | 163 |
163 // TODO: add optional "fBlurFilter->toString(str);" when SkMaskFilter::toStr
ing is added | 164 // TODO: add optional "fBlurFilter->toString(str);" when SkMaskFilter::toStr
ing is added |
164 // alternatively we could cache the radius in SkBlurDrawLooper and just add
it here | 165 // alternatively we could cache the radius in SkBlurDrawLooper and just add
it here |
165 } | 166 } |
166 #endif | 167 #endif |
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