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| static SkScalar | ConvertRadiusToSigma (SkScalar radius) |
| | If radius > 0, return the corresponding sigma, else return 0. More...
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| static sk_sp< SkMaskFilter > | Make (SkBlurStyle style, SkScalar sigma, const SkRect &occluder, uint32_t flags=kNone_BlurFlag) |
| | Create a blur maskfilter. More...
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static sk_sp< SkMaskFilter > | Make (SkBlurStyle style, SkScalar sigma, uint32_t flags=kNone_BlurFlag) |
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| static sk_sp< SkMaskFilter > | MakeEmboss (SkScalar blurSigma, const SkScalar direction[3], SkScalar ambient, SkScalar specular) |
| | Create an emboss maskfilter. More...
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static bool | ComputeBlurredRRectParams (const SkRRect &srcRRect, const SkRRect &devRRect, const SkRect &occluder, SkScalar sigma, SkScalar xformedSigma, SkRRect *rrectToDraw, SkISize *widthHeight, SkScalar rectXs[kMaxDivisions], SkScalar rectYs[kMaxDivisions], SkScalar texXs[kMaxDivisions], SkScalar texYs[kMaxDivisions], int *numXs, int *numYs, uint32_t *skipMask) |
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static const int | kMaxDivisions = 6 |
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| Enumerator |
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| kIgnoreTransform_BlurFlag |
The blur layer's radius is not affected by transforms.
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| kHighQuality_BlurFlag |
Use a smother, higher qulity blur algorithm.
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| kAll_BlurFlag |
mask for all blur flags
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| static SkScalar SkBlurMaskFilter::ConvertRadiusToSigma |
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SkScalar |
radius | ) |
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static |
If radius > 0, return the corresponding sigma, else return 0.
Use this to convert from the (legacy) idea of specify the blur "radius" to the standard notion of specifying its sigma.
| static sk_sp<SkMaskFilter> SkBlurMaskFilter::Make |
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SkBlurStyle |
style, |
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SkScalar |
sigma, |
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const SkRect & |
occluder, |
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uint32_t |
flags = kNone_BlurFlag |
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) |
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static |
Create a blur maskfilter.
- Parameters
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| style | The SkBlurStyle to use |
| sigma | Standard deviation of the Gaussian blur to apply. Must be > 0. |
| occluder | The rect for which no pixels need be drawn (b.c. it will be overdrawn with some opaque object. This is just a hint which backends are free to ignore. |
| flags | Flags to use - defaults to none |
- Returns
- The new blur maskfilter
| static sk_sp<SkMaskFilter> SkBlurMaskFilter::MakeEmboss |
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SkScalar |
blurSigma, |
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const SkScalar |
direction[3], |
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SkScalar |
ambient, |
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SkScalar |
specular |
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) |
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static |
Create an emboss maskfilter.
- Parameters
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| blurSigma | standard deviation of the Gaussian blur to apply before applying lighting (e.g. 3) |
| direction | array of 3 scalars [x, y, z] specifying the direction of the light source |
| ambient | 0...1 amount of ambient light |
| specular | coefficient for specular highlights (e.g. 8) |
- Returns
- the emboss maskfilter
The documentation for this class was generated from the following file:
