LCGRandom Class Reference

Public Member Functions
	LCGRandom (uint32_t seed)
SkScalar	nextSScalar1 ()

Detailed Description

Utility class that implements pseudo random 32bit numbers using a fast linear equation. Unlike rand(), this class holds its own seed (initially set to 0), so that multiple instances can be used with no side-effects.

Copied from the original implementation of SkRandom. Only contains the methods used by SkDiscretePathEffect::filterPath, with methods that were not called directly moved to private.

Definition at line 41 of file SkDiscretePathEffect.cpp.

Constructor & Destructor Documentation

LCGRandom()

LCGRandom::LCGRandom ( uint32_t  seed )

inline

Definition at line 43 of file SkDiscretePathEffect.cpp.

: fSeed(seed) {}

Member Function Documentation

nextSScalar1()

SkScalar LCGRandom::nextSScalar1 ( )

inline

Return the next pseudo random number expressed as a SkScalar in the range [-SK_Scalar1..SK_Scalar1).

Definition at line 48 of file SkDiscretePathEffect.cpp.

{ return SkFixedToScalar(this->nextSFixed1()); }

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The documentation for this class was generated from the following file:

• third_party/skia/src/effects/SkDiscretePathEffect.cpp