SkTableMaskFilter Class Reference

Applies a table lookup on each of the alpha values in the mask. More...

#include <SkTableMaskFilter.h>

Public Member Functions
	SkTableMaskFilter ()=delete

Static Public Member Functions
static void	MakeGammaTable (uint8_t table[256], SkScalar gamma)
	Utility that sets the gamma table. More...
static void	MakeClipTable (uint8_t table[256], uint8_t min, uint8_t max)
	Utility that creates a clipping table: clamps values below min to 0 and above max to 255, and rescales the remaining into 0..255. More...
static SkMaskFilter *	Create (const uint8_t table[256])
static SkMaskFilter *	CreateGamma (SkScalar gamma)
static SkMaskFilter *	CreateClip (uint8_t min, uint8_t max)

Detailed Description

Applies a table lookup on each of the alpha values in the mask.

Helper methods create some common tables (e.g. gamma, clipping)

Constructor & Destructor Documentation

SkTableMaskFilter()

SkTableMaskFilter::SkTableMaskFilter ( )

delete

Member Function Documentation

Create()

static SkMaskFilter* SkTableMaskFilter::Create ( const uint8_t  table[256] )

static

CreateClip()

static SkMaskFilter* SkTableMaskFilter::CreateClip ( uint8_t  min, uint8_t  max  )

static

CreateGamma()

static SkMaskFilter* SkTableMaskFilter::CreateGamma ( SkScalar  gamma )

static

MakeClipTable()

static void SkTableMaskFilter::MakeClipTable ( uint8_t  table[256], uint8_t  min, uint8_t  max  )

static

Utility that creates a clipping table: clamps values below min to 0 and above max to 255, and rescales the remaining into 0..255.

MakeGammaTable()

static void SkTableMaskFilter::MakeGammaTable ( uint8_t  table[256], SkScalar  gamma  )

static

Utility that sets the gamma table.

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

• /CHECKOUT/include/effects/SkTableMaskFilter.h