#include "include/core/SkTypes.h"

Include dependency graph for SkBlendMode.h:

This graph shows which files directly or indirectly include this file:

Enumerations
enum	SkBlendMode { SkBlendMode::kClear, SkBlendMode::kSrc, SkBlendMode::kDst, SkBlendMode::kSrcOver, SkBlendMode::kDstOver, SkBlendMode::kSrcIn, SkBlendMode::kDstIn, SkBlendMode::kSrcOut, SkBlendMode::kDstOut, SkBlendMode::kSrcATop, SkBlendMode::kDstATop, SkBlendMode::kXor, SkBlendMode::kPlus, SkBlendMode::kModulate, SkBlendMode::kScreen, SkBlendMode::kLastCoeffMode = kScreen, SkBlendMode::kOverlay, SkBlendMode::kDarken, SkBlendMode::kLighten, SkBlendMode::kColorDodge, SkBlendMode::kColorBurn, SkBlendMode::kHardLight, SkBlendMode::kSoftLight, SkBlendMode::kDifference, SkBlendMode::kExclusion, SkBlendMode::kMultiply, SkBlendMode::kLastSeparableMode = kMultiply, SkBlendMode::kHue, SkBlendMode::kSaturation, SkBlendMode::kColor, SkBlendMode::kLuminosity, SkBlendMode::kLastMode = kLuminosity }

enum	SkBlendModeCoeff { SkBlendModeCoeff::kZero, SkBlendModeCoeff::kOne, SkBlendModeCoeff::kSC, SkBlendModeCoeff::kISC, SkBlendModeCoeff::kDC, SkBlendModeCoeff::kIDC, SkBlendModeCoeff::kSA, SkBlendModeCoeff::kISA, SkBlendModeCoeff::kDA, SkBlendModeCoeff::kIDA, SkBlendModeCoeff::kCoeffCount }
	For Porter-Duff SkBlendModes (those <= kLastCoeffMode), these coefficients describe the blend equation used. More...

Functions
SK_API bool	SkBlendMode_AsCoeff (SkBlendMode mode, SkBlendModeCoeff src, SkBlendModeCoeff dst)
	Returns true if 'mode' is a coefficient-based blend mode (<= kLastCoeffMode). More...

SK_API const char *	SkBlendMode_Name (SkBlendMode blendMode)
	Returns name of blendMode as null-terminated C string. More...

Enumeration Type Documentation

◆ SkBlendMode

enum SkBlendMode

strong

Enumerator
kClear	replaces destination with zero: fully transparent
kSrc	replaces destination
kDst	preserves destination
kSrcOver	source over destination
kDstOver	destination over source
kSrcIn	source trimmed inside destination
kDstIn	destination trimmed by source
kSrcOut	source trimmed outside destination
kDstOut	destination trimmed outside source
kSrcATop	source inside destination blended with destination
kDstATop	destination inside source blended with source
kXor	each of source and destination trimmed outside the other
kPlus	sum of colors
kModulate	product of premultiplied colors; darkens destination
kScreen	multiply inverse of pixels, inverting result; brightens destination
kLastCoeffMode	last porter duff blend mode
kOverlay	multiply or screen, depending on destination
kDarken	darker of source and destination
kLighten	lighter of source and destination
kColorDodge	brighten destination to reflect source
kColorBurn	darken destination to reflect source
kHardLight	multiply or screen, depending on source
kSoftLight	lighten or darken, depending on source
kDifference	subtract darker from lighter with higher contrast
kExclusion	subtract darker from lighter with lower contrast
kMultiply	multiply source with destination, darkening image
kLastSeparableMode	last blend mode operating separately on components
kHue	hue of source with saturation and luminosity of destination
kSaturation	saturation of source with hue and luminosity of destination
kColor	hue and saturation of source with luminosity of destination
kLuminosity	luminosity of source with hue and saturation of destination
kLastMode	last valid value

◆ SkBlendModeCoeff

enum SkBlendModeCoeff

strong

For Porter-Duff SkBlendModes (those <= kLastCoeffMode), these coefficients describe the blend equation used.

Coefficient-based blend modes specify an equation: ('dstCoeff' * dst + 'srcCoeff' * src), where the coefficient values are constants, functions of the src or dst alpha, or functions of the src or dst color.

Enumerator
kZero
kOne	0
kSC	1
kISC	src color
kDC	inverse src color (i.e. 1 - sc)
kIDC	dst color
kSA	inverse dst color (i.e. 1 - dc)
kISA	src alpha
kDA	inverse src alpha (i.e. 1 - sa)
kIDA	dst alpha
kCoeffCount	inverse dst alpha (i.e. 1 - da)

Function Documentation

◆ SkBlendMode_AsCoeff()

SK_API bool SkBlendMode_AsCoeff	(	SkBlendMode	mode,
		SkBlendModeCoeff *	src,
		SkBlendModeCoeff *	dst
	)

Returns true if 'mode' is a coefficient-based blend mode (<= kLastCoeffMode).

If true is returned, the mode's src and dst coefficient functions are set in 'src' and 'dst'.

◆ SkBlendMode_Name()

SK_API const char* SkBlendMode_Name ( SkBlendMode blendMode )

Returns name of blendMode as null-terminated C string.

Returns: C string