skgpu::graphite::YUVABackendTextures Class Reference

#include <YUVABackendTextures.h>

Public Member Functions
	YUVABackendTextures ()=default
	YUVABackendTextures (const YUVABackendTextures &)=delete
YUVABackendTextures &	operator= (const YUVABackendTextures &)=delete
	YUVABackendTextures (const Recorder *, const SkYUVAInfo &, SkSpan< const BackendTexture >)
SkSpan< const BackendTexture >	planeTextures () const
BackendTexture	planeTexture (int i) const
const SkYUVAInfo &	yuvaInfo () const
SkYUVColorSpace	yuvColorSpace () const
int	numPlanes () const
bool	isValid () const
SkYUVAInfo::YUVALocations	toYUVALocations () const

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

Detailed Description

A set of BackendTextures that hold the planar data for an image described a SkYUVAInfo.

Definition at line 85 of file YUVABackendTextures.h.

Constructor & Destructor Documentation

YUVABackendTextures() [1/3]

skgpu::graphite::YUVABackendTextures::YUVABackendTextures ( )

default

YUVABackendTextures() [2/3]

skgpu::graphite::YUVABackendTextures::YUVABackendTextures ( const YUVABackendTextures &  )

delete

YUVABackendTextures() [3/3]

skgpu::graphite::YUVABackendTextures::YUVABackendTextures	(	const Recorder *	recorder,
		const SkYUVAInfo &	yuvaInfo,
		SkSpan< const BackendTexture >	textures
	)

Initializes a YUVABackendTextures object from a set of textures that store the planes indicated by the SkYUVAInfo. This will produce an invalid result (return false from isValid()) if the passed texture formats' channels don't agree with SkYUVAInfo.

Definition at line 80 of file YUVABackendTextures.cpp.

        : fYUVAInfo(yuvaInfo) {
    if (!yuvaInfo.isValid()) {
        SkASSERT(!this->isValid());
        return;
    }
    SkISize planeDimensions[kMaxPlanes];
    int numPlanes = yuvaInfo.planeDimensions(planeDimensions);
    if (numPlanes == 0 || (size_t)numPlanes > textures.size()) {
        fYUVAInfo = {};
        SkASSERT(!this->isValid());
        return;
    }
    for (int i = 0; i < numPlanes; ++i) {
        int numRequiredChannels = yuvaInfo.numChannelsInPlane(i);
        SkASSERT(numRequiredChannels > 0);
        fPlaneChannelMasks[i] = recorder->priv().caps()->channelMask(textures[i].info());
        if (!textures[i].isValid() ||
            textures[i].dimensions() != planeDimensions[i] ||
            textures[i].backend() != textures[0].backend() ||
            num_channels(fPlaneChannelMasks[i]) < numRequiredChannels) {
            SkASSERT(!this->isValid());
            return;
        }
        fPlaneTextures[i] = textures[i];
    }
    SkASSERT(this->isValid());
}

Member Function Documentation

isValid()

bool skgpu::graphite::YUVABackendTextures::isValid ( ) const

inline

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

Definition at line 123 of file YUVABackendTextures.h.

{ return fYUVAInfo.isValid(); }

numPlanes()

int skgpu::graphite::YUVABackendTextures::numPlanes ( ) const

inline

The number of planes, 0 if this YUVABackendTextureInfo is invalid.

Definition at line 117 of file YUVABackendTextures.h.

{ return fYUVAInfo.numPlanes(); }

operator=()

YUVABackendTextures & skgpu::graphite::YUVABackendTextures::operator= ( const YUVABackendTextures &  )

delete

planeTexture()

BackendTexture skgpu::graphite::YUVABackendTextures::planeTexture ( int  i ) const

inline

BackendTexture for the ith plane, or invalid if i >= numPlanes()

Definition at line 107 of file YUVABackendTextures.h.

                                             {
        SkASSERT(i >= 0);
        return fPlaneTextures[static_cast<size_t>(i)];
    }

planeTextures()

SkSpan< const BackendTexture > skgpu::graphite::YUVABackendTextures::planeTextures ( ) const

inline

Definition at line 102 of file YUVABackendTextures.h.

                                                       {
        return SkSpan<const BackendTexture>(fPlaneTextures);
    }

toYUVALocations()

SkYUVAInfo::YUVALocations skgpu::graphite::YUVABackendTextures::toYUVALocations

(

)

const

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

Definition at line 111 of file YUVABackendTextures.cpp.

                                                                   {
    auto result = fYUVAInfo.toYUVALocations(fPlaneChannelMasks.data());
    SkDEBUGCODE(int numPlanes;)
    SkASSERT(SkYUVAInfo::YUVALocation::AreValidLocations(result, &numPlanes));
    SkASSERT(numPlanes == this->numPlanes());
    return result;
}

yuvaInfo()

const SkYUVAInfo & skgpu::graphite::YUVABackendTextures::yuvaInfo ( ) const

inline

Definition at line 112 of file YUVABackendTextures.h.

{ return fYUVAInfo; }

yuvColorSpace()

SkYUVColorSpace skgpu::graphite::YUVABackendTextures::yuvColorSpace ( ) const

inline

Definition at line 114 of file YUVABackendTextures.h.

{ return fYUVAInfo.yuvColorSpace(); }

Member Data Documentation

kMaxPlanes

constexpr auto skgpu::graphite::YUVABackendTextures::kMaxPlanes = SkYUVAInfo::kMaxPlanes

staticconstexpr

Definition at line 87 of file YUVABackendTextures.h.

---

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

• third_party/skia/include/gpu/graphite/YUVABackendTextures.h
• third_party/skia/src/gpu/graphite/YUVABackendTextures.cpp