GrYUVABackendTextureInfo Class Reference

#include <GrYUVABackendTextures.h>

Public Member Functions
	GrYUVABackendTextureInfo ()=default
	GrYUVABackendTextureInfo (const SkYUVAInfo &, const GrBackendFormat[kMaxPlanes], skgpu::Mipmapped, GrSurfaceOrigin)
	GrYUVABackendTextureInfo (const GrYUVABackendTextureInfo &)=default
GrYUVABackendTextureInfo &	operator= (const GrYUVABackendTextureInfo &)=default
bool	operator== (const GrYUVABackendTextureInfo &) const
bool	operator!= (const GrYUVABackendTextureInfo &that) const
const SkYUVAInfo &	yuvaInfo () const
SkYUVColorSpace	yuvColorSpace () const
skgpu::Mipmapped	mipmapped () const
GrSurfaceOrigin	textureOrigin () const
int	numPlanes () const
const GrBackendFormat &	planeFormat (int i) const
bool	isValid () const
SkYUVAInfo::YUVALocations	toYUVALocations () const

Static Public Attributes
static constexpr auto	kMaxPlanes = SkYUVAInfo::kMaxPlanes

Detailed Description

A description of a set GrBackendTextures that hold the planar data described by a SkYUVAInfo.

Definition at line 19 of file GrYUVABackendTextures.h.

Constructor & Destructor Documentation

GrYUVABackendTextureInfo() [1/3]

GrYUVABackendTextureInfo::GrYUVABackendTextureInfo ( )

default

Default GrYUVABackendTextureInfo is invalid.

GrYUVABackendTextureInfo() [2/3]

GrYUVABackendTextureInfo::GrYUVABackendTextureInfo	(	const SkYUVAInfo &	yuvaInfo,
		const GrBackendFormat	formats[kMaxPlanes],
		skgpu::Mipmapped	mipmapped,
		GrSurfaceOrigin	origin
	)

Initializes a GrYUVABackendTextureInfo to describe a set of textures that can store the planes indicated by the SkYUVAInfo. The texture dimensions are taken from the SkYUVAInfo's plane dimensions. All the described textures share a common origin. The planar image this describes will be mip mapped if all the textures are individually mip mapped as indicated by skgpu::Mipmapped. This will produce an invalid result (return false from isValid()) if the passed formats' channels don't agree with SkYUVAInfo.

Definition at line 25 of file GrYUVABackendTextures.cpp.

        : fYUVAInfo(yuvaInfo), fMipmapped(mipmapped), fTextureOrigin(origin) {
    if (!yuvaInfo.isValid()) {
        *this = {};
        SkASSERT(!this->isValid());
        return;
    }
    int n = yuvaInfo.numPlanes();
    for (size_t i = 0; i < static_cast<size_t>(n); ++i) {
        if (!formats[i].isValid() || formats[i].backend() != formats[0].backend()) {
            *this = {};
            SkASSERT(!this->isValid());
            return;
        }
        int numRequiredChannels = yuvaInfo.numChannelsInPlane(i);
        SkASSERT(numRequiredChannels > 0);
        int numActualChannels = num_channels(formats[i]);
        if (numActualChannels < numRequiredChannels) {
            *this = {};
            SkASSERT(!this->isValid());
            return;
        }
        fPlaneFormats[i] = formats[i];
    }
    SkASSERT(this->isValid());
}

GrYUVABackendTextureInfo() [3/3]

GrYUVABackendTextureInfo::GrYUVABackendTextureInfo ( const GrYUVABackendTextureInfo &  )

default

Member Function Documentation

isValid()

bool GrYUVABackendTextureInfo::isValid ( ) const

inline

Returns true if this has been configured with a valid SkYUVAInfo with compatible texture formats.

Definition at line 64 of file GrYUVABackendTextures.h.

{ return fYUVAInfo.isValid(); }

mipmapped()

skgpu::Mipmapped GrYUVABackendTextureInfo::mipmapped ( ) const

inline

Definition at line 50 of file GrYUVABackendTextures.h.

{ return fMipmapped; }

numPlanes()

int GrYUVABackendTextureInfo::numPlanes ( ) const

inline

The number of SkPixmap planes, 0 if this GrYUVABackendTextureInfo is invalid.

Definition at line 55 of file GrYUVABackendTextures.h.

{ return fYUVAInfo.numPlanes(); }

operator!=()

bool GrYUVABackendTextureInfo::operator!= ( const GrYUVABackendTextureInfo &  that ) const

inline

Definition at line 44 of file GrYUVABackendTextures.h.

{ return !(*this == that); }

operator=()

GrYUVABackendTextureInfo & GrYUVABackendTextureInfo::operator= ( const GrYUVABackendTextureInfo &  )

default

operator==()

bool GrYUVABackendTextureInfo::operator==

(

const GrYUVABackendTextureInfo &

that

)

const

Definition at line 55 of file GrYUVABackendTextures.cpp.

                                                                                    {
    if (fYUVAInfo != that.fYUVAInfo ||
        fMipmapped != that.fMipmapped ||
        fTextureOrigin != that.fTextureOrigin) {
        return false;
    }
    int n = fYUVAInfo.numPlanes();
    return std::equal(fPlaneFormats, fPlaneFormats + n, that.fPlaneFormats);
}

planeFormat()

const GrBackendFormat & GrYUVABackendTextureInfo::planeFormat ( int  i ) const

inline

Format of the ith plane, or invalid format if i >= numPlanes()

Definition at line 58 of file GrYUVABackendTextures.h.

{ return fPlaneFormats[i]; }

textureOrigin()

GrSurfaceOrigin GrYUVABackendTextureInfo::textureOrigin ( ) const

inline

Definition at line 52 of file GrYUVABackendTextures.h.

{ return fTextureOrigin; }

toYUVALocations()

SkYUVAInfo::YUVALocations GrYUVABackendTextureInfo::toYUVALocations

(

)

const

Computes a YUVALocations representation of the planar layout. The result is guaranteed to be valid if this->isValid().

Definition at line 65 of file GrYUVABackendTextures.cpp.

                                                                        {
    uint32_t channelFlags[] = {fPlaneFormats[0].channelMask(),
                               fPlaneFormats[1].channelMask(),
                               fPlaneFormats[2].channelMask(),
                               fPlaneFormats[3].channelMask()};
    auto result = fYUVAInfo.toYUVALocations(channelFlags);
    SkDEBUGCODE(int numPlanes;)
    SkASSERT(SkYUVAInfo::YUVALocation::AreValidLocations(result, &numPlanes));
    SkASSERT(numPlanes == this->numPlanes());
    return result;
}

yuvaInfo()

const SkYUVAInfo & GrYUVABackendTextureInfo::yuvaInfo ( ) const

inline

Definition at line 46 of file GrYUVABackendTextures.h.

{ return fYUVAInfo; }

yuvColorSpace()

SkYUVColorSpace GrYUVABackendTextureInfo::yuvColorSpace ( ) const

inline

Definition at line 48 of file GrYUVABackendTextures.h.

{ return fYUVAInfo.yuvColorSpace(); }

Member Data Documentation

kMaxPlanes

constexpr auto GrYUVABackendTextureInfo::kMaxPlanes = SkYUVAInfo::kMaxPlanes

staticconstexpr

Definition at line 21 of file GrYUVABackendTextures.h.

---

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

• third_party/skia/include/gpu/GrYUVABackendTextures.h
• third_party/skia/src/gpu/ganesh/GrYUVABackendTextures.cpp