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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2012 Google Inc. | 3 * Copyright 2012 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 | 8 |
9 #ifndef SkTwoPointRadialGradient_DEFINED | 9 #ifndef SkTwoPointRadialGradient_DEFINED |
10 #define SkTwoPointRadialGradient_DEFINED | 10 #define SkTwoPointRadialGradient_DEFINED |
11 | 11 |
12 #include "SkGradientShaderPriv.h" | 12 #include "SkGradientShaderPriv.h" |
13 | 13 |
14 class SkTwoPointRadialGradient : public SkGradientShaderBase { | 14 class SkTwoPointRadialGradient : public SkGradientShaderBase { |
15 public: | 15 public: |
16 SkTwoPointRadialGradient(const SkPoint& start, SkScalar startRadius, | 16 SkTwoPointRadialGradient(const SkPoint& start, SkScalar startRadius, |
17 const SkPoint& end, SkScalar endRadius, | 17 const SkPoint& end, SkScalar endRadius, |
18 const Descriptor&); | 18 const Descriptor&); |
19 | 19 |
20 virtual BitmapType asABitmap(SkBitmap* bitmap, | 20 virtual BitmapType asABitmap(SkBitmap* bitmap, |
21 SkMatrix* matrix, | 21 SkMatrix* matrix, |
22 TileMode* xy) const SK_OVERRIDE; | 22 TileMode* xy) const SK_OVERRIDE; |
23 virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE; | 23 virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE; |
24 virtual bool asNewEffect(GrContext* context, const SkPaint&, const SkMatrix*
, GrColor*, | 24 virtual bool asFragmentProcessor(GrContext* context, const SkPaint&, const S
kMatrix*, GrColor*, |
25 GrEffect**) const SK_OVERRIDE; | 25 GrFragmentProcessor**) const SK_OVERRIDE; |
26 | 26 |
27 virtual size_t contextSize() const SK_OVERRIDE; | 27 virtual size_t contextSize() const SK_OVERRIDE; |
28 | 28 |
29 class TwoPointRadialGradientContext : public SkGradientShaderBase::GradientS
haderBaseContext { | 29 class TwoPointRadialGradientContext : public SkGradientShaderBase::GradientS
haderBaseContext { |
30 public: | 30 public: |
31 TwoPointRadialGradientContext(const SkTwoPointRadialGradient&, const Con
textRec&); | 31 TwoPointRadialGradientContext(const SkTwoPointRadialGradient&, const Con
textRec&); |
32 | 32 |
33 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVE
RRIDE; | 33 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVE
RRIDE; |
34 | 34 |
35 private: | 35 private: |
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56 SkPoint fDiff; | 56 SkPoint fDiff; |
57 SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA; | 57 SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA; |
58 | 58 |
59 void init(); | 59 void init(); |
60 | 60 |
61 friend class SkGradientShader; | 61 friend class SkGradientShader; |
62 typedef SkGradientShaderBase INHERITED; | 62 typedef SkGradientShaderBase INHERITED; |
63 }; | 63 }; |
64 | 64 |
65 #endif | 65 #endif |
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