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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 GrEffectRef* asNewEffect(GrContext* context, const SkPaint&) const S
K_OVERRIDE; | 24 virtual GrEffectRef* asNewEffect(GrContext* context, const SkPaint&) const S
K_OVERRIDE; |
25 | 25 |
26 | 26 virtual void shadeSpan(int x, int y, SkPMColor* dstCParam, |
27 virtual size_t contextSize() const SK_OVERRIDE; | 27 int count) SK_OVERRIDE; |
28 virtual bool validContext(const SkBitmap&, const SkPaint&, | 28 virtual bool setContext(const SkBitmap& device, |
29 const SkMatrix&, SkMatrix* totalInverse = NULL) co
nst SK_OVERRIDE; | 29 const SkPaint& paint, |
30 virtual SkShader::Context* createContext(const SkBitmap&, const SkPaint&, co
nst SkMatrix&, | 30 const SkMatrix& matrix) SK_OVERRIDE; |
31 void* storage) const SK_OVERRIDE; | |
32 | |
33 class TwoPointRadialGradientContext : public SkGradientShaderBase::GradientS
haderBaseContext { | |
34 public: | |
35 TwoPointRadialGradientContext(const SkTwoPointRadialGradient& shader, | |
36 const SkBitmap& device, | |
37 const SkPaint& paint, | |
38 const SkMatrix& matrix); | |
39 ~TwoPointRadialGradientContext() {} | |
40 | |
41 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVE
RRIDE; | |
42 | |
43 private: | |
44 typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED; | |
45 }; | |
46 | 31 |
47 SkScalar getCenterX1() const { return fDiff.length(); } | 32 SkScalar getCenterX1() const { return fDiff.length(); } |
48 SkScalar getStartRadius() const { return fStartRadius; } | 33 SkScalar getStartRadius() const { return fStartRadius; } |
49 SkScalar getDiffRadius() const { return fDiffRadius; } | 34 SkScalar getDiffRadius() const { return fDiffRadius; } |
50 | 35 |
51 SK_TO_STRING_OVERRIDE() | 36 SK_TO_STRING_OVERRIDE() |
52 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTwoPointRadialGradient
) | 37 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTwoPointRadialGradient
) |
53 | 38 |
54 protected: | 39 protected: |
55 SkTwoPointRadialGradient(SkReadBuffer& buffer); | 40 SkTwoPointRadialGradient(SkReadBuffer& buffer); |
56 virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; | 41 virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; |
57 | 42 |
58 private: | 43 private: |
| 44 typedef SkGradientShaderBase INHERITED; |
59 const SkPoint fCenter1; | 45 const SkPoint fCenter1; |
60 const SkPoint fCenter2; | 46 const SkPoint fCenter2; |
61 const SkScalar fRadius1; | 47 const SkScalar fRadius1; |
62 const SkScalar fRadius2; | 48 const SkScalar fRadius2; |
63 SkPoint fDiff; | 49 SkPoint fDiff; |
64 SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA; | 50 SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA; |
65 | 51 |
66 void init(); | 52 void init(); |
67 | |
68 typedef SkGradientShaderBase INHERITED; | |
69 }; | 53 }; |
70 | 54 |
71 #endif | 55 #endif |
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