SkColorMatrix Class Reference

#include <SkColorMatrix.h>

Public Member Functions
constexpr	SkColorMatrix ()
constexpr	SkColorMatrix (float m00, float m01, float m02, float m03, float m04, float m10, float m11, float m12, float m13, float m14, float m20, float m21, float m22, float m23, float m24, float m30, float m31, float m32, float m33, float m34)
void	setIdentity ()
void	setScale (float rScale, float gScale, float bScale, float aScale=1.0f)
void	postTranslate (float dr, float dg, float db, float da)
void	setConcat (const SkColorMatrix &a, const SkColorMatrix &b)
void	preConcat (const SkColorMatrix &mat)
void	postConcat (const SkColorMatrix &mat)
void	setSaturation (float sat)
void	setRowMajor (const float src[20])
void	getRowMajor (float dst[20]) const

Static Public Member Functions
static SkColorMatrix	RGBtoYUV (SkYUVColorSpace)
static SkColorMatrix	YUVtoRGB (SkYUVColorSpace)

Friends
class	SkColorFilters

Detailed Description

Definition at line 18 of file SkColorMatrix.h.

Constructor & Destructor Documentation

SkColorMatrix() [1/2]

constexpr SkColorMatrix::SkColorMatrix ( )

inlineconstexpr

Definition at line 20 of file SkColorMatrix.h.

                              : SkColorMatrix(1, 0, 0, 0, 0,
                                              0, 1, 0, 0, 0,
                                              0, 0, 1, 0, 0,
                                              0, 0, 0, 1, 0) {}

SkColorMatrix() [2/2]

constexpr SkColorMatrix::SkColorMatrix ( float  m00, float  m01, float  m02, float  m03, float  m04, float  m10, float  m11, float  m12, float  m13, float  m14, float  m20, float  m21, float  m22, float  m23, float  m24, float  m30, float  m31, float  m32, float  m33, float  m34  )

inlineconstexpr

Definition at line 25 of file SkColorMatrix.h.

        : fMat { m00, m01, m02, m03, m04,
                 m10, m11, m12, m13, m14,
                 m20, m21, m22, m23, m24,
                 m30, m31, m32, m33, m34 } {}

Member Function Documentation

getRowMajor()

void SkColorMatrix::getRowMajor ( float  dst[20] ) const

inline

Definition at line 49 of file SkColorMatrix.h.

{ std::copy_n(fMat.begin(), 20, dst); }

postConcat()

void SkColorMatrix::postConcat ( const SkColorMatrix &  mat )

inline

Definition at line 44 of file SkColorMatrix.h.

{ this->setConcat(mat, *this); }

postTranslate()

void SkColorMatrix::postTranslate	(	float	dr,
		float	dg,
		float	db,
		float	da
	)

Definition at line 80 of file SkColorMatrix.cpp.

                                                                        {
    fMat[kR_Trans] += dr;
    fMat[kG_Trans] += dg;
    fMat[kB_Trans] += db;
    fMat[kA_Trans] += da;
}

preConcat()

void SkColorMatrix::preConcat ( const SkColorMatrix &  mat )

inline

Definition at line 43 of file SkColorMatrix.h.

{ this->setConcat(*this, mat); }

RGBtoYUV()

SkColorMatrix SkColorMatrix::RGBtoYUV ( SkYUVColorSpace  cs )

static

Definition at line 13 of file SkColorMatrix.cpp.

                                                        {
    SkColorMatrix m;
    SkColorMatrix_RGB2YUV(cs, m.fMat.data());
    return m;
}

setConcat()

void SkColorMatrix::setConcat	(	const SkColorMatrix &	a,
		const SkColorMatrix &	b
	)

Definition at line 89 of file SkColorMatrix.cpp.

                                                                                  {
    set_concat(fMat.data(), matA.fMat.data(), matB.fMat.data());
}

setIdentity()

void SkColorMatrix::setIdentity

(

)

Definition at line 67 of file SkColorMatrix.cpp.

                                {
    fMat.fill(0.0f);
    fMat[kR_Scale] = fMat[kG_Scale] = fMat[kB_Scale] = fMat[kA_Scale] = 1;
}

setRowMajor()

void SkColorMatrix::setRowMajor ( const float  src[20] )

inline

Definition at line 48 of file SkColorMatrix.h.

{ std::copy_n(src, 20, fMat.begin()); }

setSaturation()

void SkColorMatrix::setSaturation

(

float

sat

)

Definition at line 105 of file SkColorMatrix.cpp.

                                           {
    fMat.fill(0.0f);
 
    const float R = kHueR * (1 - sat);
    const float G = kHueG * (1 - sat);
    const float B = kHueB * (1 - sat);
 
    setrow(fMat.data() +  0, R + sat, G, B);
    setrow(fMat.data() +  5, R, G + sat, B);
    setrow(fMat.data() + 10, R, G, B + sat);
    fMat[kA_Scale] = 1;
}

setScale()

void SkColorMatrix::setScale	(	float	rScale,
		float	gScale,
		float	bScale,
		float	aScale = 1.0f
	)

Definition at line 72 of file SkColorMatrix.cpp.

                                                                                   {
    fMat.fill(0.0f);
    fMat[kR_Scale] = rScale;
    fMat[kG_Scale] = gScale;
    fMat[kB_Scale] = bScale;
    fMat[kA_Scale] = aScale;
}

YUVtoRGB()

SkColorMatrix SkColorMatrix::YUVtoRGB ( SkYUVColorSpace  cs )

static

Definition at line 19 of file SkColorMatrix.cpp.

                                                        {
    SkColorMatrix m;
    SkColorMatrix_YUV2RGB(cs, m.fMat.data());
    return m;
}

Friends And Related Symbol Documentation

SkColorFilters

friend class SkColorFilters

friend

Definition at line 54 of file SkColorMatrix.h.

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

• third_party/skia/include/effects/SkColorMatrix.h
• third_party/skia/src/effects/SkColorMatrix.cpp