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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 SkBlurMaskFilter_DEFINED | 8 #ifndef SkBlurMaskFilter_DEFINED |
9 #define SkBlurMaskFilter_DEFINED | 9 #define SkBlurMaskFilter_DEFINED |
10 | 10 |
11 // we include this since our callers will need to at least be able to ref/unref | 11 // we include this since our callers will need to at least be able to ref/unref |
12 #include "SkMaskFilter.h" | 12 #include "SkMaskFilter.h" |
13 #include "SkScalar.h" | 13 #include "SkScalar.h" |
14 #include "SkBlurTypes.h" | 14 #include "SkBlurTypes.h" |
15 | 15 |
16 class SK_API SkBlurMaskFilter { | 16 class SK_API SkBlurMaskFilter { |
17 public: | 17 public: |
18 #ifdef SK_SUPPORT_LEGACY_BLURMASKFILTER_STYLE | |
19 enum BlurStyle { | |
20 kNormal_BlurStyle = kNormal_SkBlurStyle, //!< fuzzy inside and outside | |
21 kSolid_BlurStyle = kSolid_SkBlurStyle, //!< solid inside, fuzzy outsid
e | |
22 kOuter_BlurStyle = kOuter_SkBlurStyle, //!< nothing inside, fuzzy outs
ide | |
23 kInner_BlurStyle = kInner_SkBlurStyle, //!< fuzzy inside, nothing outs
ide | |
24 | |
25 kBlurStyleCount | |
26 }; | |
27 #endif | |
28 | |
29 /** | 18 /** |
30 * If radius > 0, return the corresponding sigma, else return 0. Use this t
o convert from the | 19 * If radius > 0, return the corresponding sigma, else return 0. Use this t
o convert from the |
31 * (legacy) idea of specify the blur "radius" to the standard notion of spe
cifying its sigma. | 20 * (legacy) idea of specify the blur "radius" to the standard notion of spe
cifying its sigma. |
32 */ | 21 */ |
33 static SkScalar ConvertRadiusToSigma(SkScalar radius); | 22 static SkScalar ConvertRadiusToSigma(SkScalar radius); |
34 | 23 |
35 enum BlurFlags { | 24 enum BlurFlags { |
36 kNone_BlurFlag = 0x00, | 25 kNone_BlurFlag = 0x00, |
37 /** The blur layer's radius is not affected by transforms */ | 26 /** The blur layer's radius is not affected by transforms */ |
38 kIgnoreTransform_BlurFlag = 0x01, | 27 kIgnoreTransform_BlurFlag = 0x01, |
39 /** Use a smother, higher qulity blur algorithm */ | 28 /** Use a smother, higher qulity blur algorithm */ |
40 kHighQuality_BlurFlag = 0x02, | 29 kHighQuality_BlurFlag = 0x02, |
41 /** mask for all blur flags */ | 30 /** mask for all blur flags */ |
42 kAll_BlurFlag = 0x03 | 31 kAll_BlurFlag = 0x03 |
43 }; | 32 }; |
44 | 33 |
45 #ifdef SK_SUPPORT_LEGACY_BLURMASKFILTER_STYLE | |
46 SK_ATTR_DEPRECATED("use sigma version") | |
47 static SkMaskFilter* Create(SkScalar radius, BlurStyle style, | |
48 uint32_t flags = kNone_BlurFlag); | |
49 | |
50 /** Create a blur maskfilter. | |
51 @param style The BlurStyle to use | |
52 @param sigma Standard deviation of the Gaussian blur to apply. Must b
e > 0. | |
53 @param flags Flags to use - defaults to none | |
54 @return The new blur maskfilter | |
55 */ | |
56 static SkMaskFilter* Create(BlurStyle style, SkScalar sigma, | |
57 uint32_t flags = kNone_BlurFlag); | |
58 #endif | |
59 | |
60 /** Create a blur maskfilter. | 34 /** Create a blur maskfilter. |
61 * @param style The SkBlurStyle to use | 35 * @param style The SkBlurStyle to use |
62 * @param sigma Standard deviation of the Gaussian blur to apply. Must b
e > 0. | 36 * @param sigma Standard deviation of the Gaussian blur to apply. Must b
e > 0. |
63 * @param flags Flags to use - defaults to none | 37 * @param flags Flags to use - defaults to none |
64 * @return The new blur maskfilter | 38 * @return The new blur maskfilter |
65 */ | 39 */ |
66 static SkMaskFilter* Create(SkBlurStyle style, SkScalar sigma, uint32_t flag
s = kNone_BlurFlag); | 40 static SkMaskFilter* Create(SkBlurStyle style, SkScalar sigma, uint32_t flag
s = kNone_BlurFlag); |
67 | 41 |
68 /** Create an emboss maskfilter | 42 /** Create an emboss maskfilter |
69 @param blurSigma standard deviation of the Gaussian blur to apply | 43 @param blurSigma standard deviation of the Gaussian blur to apply |
(...skipping 11 matching lines...) Expand all Loading... |
81 SkScalar ambient, SkScalar specular, | 55 SkScalar ambient, SkScalar specular, |
82 SkScalar blurRadius); | 56 SkScalar blurRadius); |
83 | 57 |
84 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() | 58 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() |
85 | 59 |
86 private: | 60 private: |
87 SkBlurMaskFilter(); // can't be instantiated | 61 SkBlurMaskFilter(); // can't be instantiated |
88 }; | 62 }; |
89 | 63 |
90 #endif | 64 #endif |
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