GrColorSpaceXform Class Reference

#include <GrColorSpaceXform.h>

Inheritance diagram for GrColorSpaceXform:

Public Member Functions
	GrColorSpaceXform (const SkColorSpaceXformSteps &steps)
const SkColorSpaceXformSteps &	steps () const
SkColor4f	apply (const SkColor4f &srcColor)
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Static Public Member Functions
static sk_sp< GrColorSpaceXform >	Make (SkColorSpace *src, SkAlphaType srcAT, SkColorSpace *dst, SkAlphaType dstAT)
static sk_sp< GrColorSpaceXform >	Make (const GrColorInfo &srcInfo, const GrColorInfo &dstInfo)
static uint32_t	XformKey (const GrColorSpaceXform *xform)
static bool	Equals (const GrColorSpaceXform *a, const GrColorSpaceXform *b)

Friends
class	GrGLSLColorSpaceXformHelper

Detailed Description

Represents a color space transformation

Definition at line 30 of file GrColorSpaceXform.h.

Constructor & Destructor Documentation

GrColorSpaceXform()

GrColorSpaceXform::GrColorSpaceXform ( const SkColorSpaceXformSteps &  steps )

inline

Definition at line 32 of file GrColorSpaceXform.h.

: fSteps(steps) {}

Member Function Documentation

apply()

SkColor4f GrColorSpaceXform::apply

(

const SkColor4f &

srcColor

)

Definition at line 82 of file GrColorSpaceXform.cpp.

                                                            {
    SkColor4f result = srcColor;
    fSteps.apply(result.vec());
    return result;
}

Equals()

bool GrColorSpaceXform::Equals ( const GrColorSpaceXform *  a, const GrColorSpaceXform *  b  )

static

Definition at line 54 of file GrColorSpaceXform.cpp.

                                                                                     {
    if (a == b) {
        return true;
    }
 
    if (!a || !b || a->fSteps.flags.mask() != b->fSteps.flags.mask()) {
        return false;
    }
 
    if (a->fSteps.flags.linearize &&
        0 != memcmp(&a->fSteps.srcTF, &b->fSteps.srcTF, sizeof(a->fSteps.srcTF))) {
        return false;
    }
 
    if (a->fSteps.flags.gamut_transform &&
        0 != memcmp(&a->fSteps.src_to_dst_matrix, &b->fSteps.src_to_dst_matrix,
                    sizeof(a->fSteps.src_to_dst_matrix))) {
        return false;
    }
 
    if (a->fSteps.flags.encode &&
        0 != memcmp(&a->fSteps.dstTFInv, &b->fSteps.dstTFInv, sizeof(a->fSteps.dstTFInv))) {
        return false;
    }
 
    return true;
}

Make() [1/2]

sk_sp< GrColorSpaceXform > GrColorSpaceXform::Make ( const GrColorInfo &  srcInfo, const GrColorInfo &  dstInfo  )

static

Definition at line 32 of file GrColorSpaceXform.cpp.

                                                                             {
    return Make(srcInfo.colorSpace(), srcInfo.alphaType(),
                dstInfo.colorSpace(), dstInfo.alphaType());
}

Make() [2/2]

sk_sp< GrColorSpaceXform > GrColorSpaceXform::Make ( SkColorSpace *  src, SkAlphaType  srcAT, SkColorSpace *  dst, SkAlphaType  dstAT  )

static

Definition at line 25 of file GrColorSpaceXform.cpp.

                                                                                       {
    SkColorSpaceXformSteps steps(src, srcAT, dst, dstAT);
    return steps.flags.mask() == 0 ? nullptr  /* Noop transform */
                                   : sk_make_sp<GrColorSpaceXform>(steps);
}

steps()

const SkColorSpaceXformSteps & GrColorSpaceXform::steps ( ) const

inline

Definition at line 39 of file GrColorSpaceXform.h.

{ return fSteps; }

XformKey()

uint32_t GrColorSpaceXform::XformKey ( const GrColorSpaceXform *  xform )

static

GrFragmentProcessor::addToKey() must call this and include the returned value in its computed key.

Definition at line 38 of file GrColorSpaceXform.cpp.

                                                                   {
    // Code generation depends on which steps we apply,
    // and the kinds of transfer functions (if we're applying those).
    if (!xform) { return 0; }
 
    const SkColorSpaceXformSteps& steps(xform->fSteps);
    uint32_t key = steps.flags.mask();
    if (steps.flags.linearize) {
        key |= skcms_TransferFunction_getType(&steps.srcTF)    << 8;
    }
    if (steps.flags.encode) {
        key |= skcms_TransferFunction_getType(&steps.dstTFInv) << 16;
    }
    return key;
}

Friends And Related Function Documentation

GrGLSLColorSpaceXformHelper

friend class GrGLSLColorSpaceXformHelper

friend

Definition at line 52 of file GrColorSpaceXform.h.

---

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

• third_party/skia/src/gpu/ganesh/GrColorSpaceXform.h
• third_party/skia/src/gpu/ganesh/GrColorSpaceXform.cpp