/* * Copyright 2006 The Android Open Source Project * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef SkBlurMaskFilter_DEFINED #define SkBlurMaskFilter_DEFINED // we include this since our callers will need to at least be able to ref/unref #include "SkMaskFilter.h" #include "SkScalar.h" class SK_API SkBlurMaskFilter { public: enum BlurStyle { kNormal_BlurStyle, //!< fuzzy inside and outside kSolid_BlurStyle, //!< solid inside, fuzzy outside kOuter_BlurStyle, //!< nothing inside, fuzzy outside kInner_BlurStyle, //!< fuzzy inside, nothing outside kBlurStyleCount }; enum BlurFlags { kNone_BlurFlag = 0x00, /** The blur layer's radius is not affected by transforms */ kIgnoreTransform_BlurFlag = 0x01, /** Use a smother, higher qulity blur algorithm */ kHighQuality_BlurFlag = 0x02, /** Do faster blurs by rounding the radius to a set of sub-integer values */ kCoarseRadius_BlurFlag = 0x04, /** mask for all blur flags */ kAll_BlurFlag = 0x07 }; /** Create a blur maskfilter. @param radius The radius to extend the blur from the original mask. Must be > 0. @param style The BlurStyle to use @param flags Flags to use - defaults to none @return The new blur maskfilter */ static SkMaskFilter* Create(SkScalar radius, BlurStyle style, uint32_t flags = kNone_BlurFlag); /** Create an emboss maskfilter @param direction array of 3 scalars [x, y, z] specifying the direction of the light source @param ambient 0...1 amount of ambient light @param specular coefficient for specular highlights (e.g. 8) @param blurRadius amount to blur before applying lighting (e.g. 3) @return the emboss maskfilter */ static SkMaskFilter* CreateEmboss( const SkScalar direction[3], SkScalar ambient, SkScalar specular, SkScalar blurRadius); SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() private: SkBlurMaskFilter(); // can't be instantiated }; #endif