SkPerlinNoiseShader::PaintingData Struct Reference

#include <SkPerlinNoiseShaderImpl.h>

Public Member Functions
	PaintingData (const SkISize &tileSize, SkScalar seed, SkScalar baseFrequencyX, SkScalar baseFrequencyY)
void	generateBitmaps ()
	PaintingData (const PaintingData &that)
const SkBitmap &	getPermutationsBitmap () const
const SkBitmap &	getNoiseBitmap () const

Public Attributes
int	fSeed
uint8_t	fLatticeSelector [kBlockSize]
uint16_t	fNoise [4][kBlockSize][2]
SkISize	fTileSize
SkVector	fBaseFrequency
StitchData	fStitchDataInit

Detailed Description

Definition at line 62 of file SkPerlinNoiseShaderImpl.h.

Constructor & Destructor Documentation

PaintingData() [1/2]

SkPerlinNoiseShader::PaintingData::PaintingData ( const SkISize &  tileSize, SkScalar  seed, SkScalar  baseFrequencyX, SkScalar  baseFrequencyY  )

inline

Definition at line 63 of file SkPerlinNoiseShaderImpl.h.

                                              {
            fBaseFrequency.set(baseFrequencyX, baseFrequencyY);
            fTileSize.set(SkScalarRoundToInt(tileSize.fWidth),
                          SkScalarRoundToInt(tileSize.fHeight));
            this->init(seed);
            if (!fTileSize.isEmpty()) {
                this->stitch();
            }
        }

PaintingData() [2/2]

SkPerlinNoiseShader::PaintingData::PaintingData ( const PaintingData &  that )

inline

Definition at line 86 of file SkPerlinNoiseShaderImpl.h.

                : fSeed(that.fSeed)
                , fTileSize(that.fTileSize)
                , fBaseFrequency(that.fBaseFrequency)
                , fStitchDataInit(that.fStitchDataInit)
                , fPermutationsBitmap(that.fPermutationsBitmap)
                , fNoiseBitmap(that.fNoiseBitmap) {
            memcpy(fLatticeSelector, that.fLatticeSelector, sizeof(fLatticeSelector));
            memcpy(fNoise, that.fNoise, sizeof(fNoise));
        }

Member Function Documentation

generateBitmaps()

void SkPerlinNoiseShader::PaintingData::generateBitmaps ( )

inline

Definition at line 76 of file SkPerlinNoiseShaderImpl.h.

                               {
            SkImageInfo info = SkImageInfo::MakeA8(kBlockSize, 1);
            fPermutationsBitmap.installPixels(info, fLatticeSelector, info.minRowBytes());
            fPermutationsBitmap.setImmutable();
 
            info = SkImageInfo::Make(kBlockSize, 4, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
            fNoiseBitmap.installPixels(info, fNoise[0][0], info.minRowBytes());
            fNoiseBitmap.setImmutable();
        }

getNoiseBitmap()

const SkBitmap & SkPerlinNoiseShader::PaintingData::getNoiseBitmap ( ) const

inline

Definition at line 232 of file SkPerlinNoiseShaderImpl.h.

                                               {
            SkASSERT(!fNoiseBitmap.drawsNothing());
            return fNoiseBitmap;
        }

getPermutationsBitmap()

const SkBitmap & SkPerlinNoiseShader::PaintingData::getPermutationsBitmap ( ) const

inline

Definition at line 228 of file SkPerlinNoiseShaderImpl.h.

                                                      {
            SkASSERT(!fPermutationsBitmap.drawsNothing());
            return fPermutationsBitmap;
        }

Member Data Documentation

fBaseFrequency

SkVector SkPerlinNoiseShader::PaintingData::fBaseFrequency

Definition at line 101 of file SkPerlinNoiseShaderImpl.h.

fLatticeSelector

uint8_t SkPerlinNoiseShader::PaintingData::fLatticeSelector[kBlockSize]

Definition at line 98 of file SkPerlinNoiseShaderImpl.h.

fNoise

uint16_t SkPerlinNoiseShader::PaintingData::fNoise[4][kBlockSize][2]

Definition at line 99 of file SkPerlinNoiseShaderImpl.h.

fSeed

int SkPerlinNoiseShader::PaintingData::fSeed

Definition at line 97 of file SkPerlinNoiseShaderImpl.h.

fStitchDataInit

StitchData SkPerlinNoiseShader::PaintingData::fStitchDataInit

Definition at line 102 of file SkPerlinNoiseShaderImpl.h.

fTileSize

SkISize SkPerlinNoiseShader::PaintingData::fTileSize

Definition at line 100 of file SkPerlinNoiseShaderImpl.h.

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

• third_party/skia/src/shaders/SkPerlinNoiseShaderImpl.h