#include <SkImage_GaneshBase.h>

Inheritance diagram for SkImage_GaneshBase:

Public Member Functions
bool	isValid (GrRecordingContext *) const final

sk_sp< SkImage >	makeColorTypeAndColorSpace (GrDirectContext *dContext, SkColorType targetColorType, sk_sp< SkColorSpace > targetCS) const final

sk_sp< SkImage >	makeSubset (GrDirectContext *direct, const SkIRect &subset) const final

GrImageContext *	context () const final

GrDirectContext *	directContext () const final

bool	getROPixels (GrDirectContext , SkBitmap , CachingHint) const final

sk_sp< SkImage >	onMakeSubset (GrDirectContext *, const SkIRect &subset) const final

bool	onReadPixels (GrDirectContext dContext, const SkImageInfo &dstInfo, void dstPixels, size_t dstRB, int srcX, int srcY, CachingHint) const override

virtual GrSemaphoresSubmitted	flush (GrDirectContext *, const GrFlushInfo &) const =0

virtual std::tuple< GrSurfaceProxyView, GrColorType >	asView (GrRecordingContext *, skgpu::Mipmapped, GrImageTexGenPolicy) const =0

virtual std::unique_ptr< GrFragmentProcessor >	asFragmentProcessor (GrRecordingContext , SkSamplingOptions, const SkTileMode[2], const SkMatrix &, const SkRect , const SkRect *) const =0

virtual GrSurfaceOrigin	origin () const =0

Public Member Functions inherited from SkImage_Base
	~SkImage_Base () override

sk_sp< SkImage >	makeColorSpace (GrDirectContext *, sk_sp< SkColorSpace >) const override

sk_sp< SkImage >	makeColorSpace (skgpu::graphite::Recorder *, sk_sp< SkColorSpace >, RequiredProperties) const override

sk_sp< SkImage >	makeSubset (skgpu::graphite::Recorder *, const SkIRect &, RequiredProperties) const override

size_t	textureSize () const override

virtual bool	onPeekPixels (SkPixmap *) const

virtual const SkBitmap *	onPeekBitmap () const

virtual bool	onHasMipmaps () const =0

virtual bool	onIsProtected () const =0

virtual SkMipmap *	onPeekMips () const

sk_sp< SkMipmap >	refMips () const

virtual void	onAsyncRescaleAndReadPixels (const SkImageInfo &, SkIRect srcRect, RescaleGamma, RescaleMode, ReadPixelsCallback, ReadPixelsContext) const

virtual void	onAsyncRescaleAndReadPixelsYUV420 (SkYUVColorSpace, bool readAlpha, sk_sp< SkColorSpace > dstColorSpace, SkIRect srcRect, SkISize dstSize, RescaleGamma, RescaleMode, ReadPixelsCallback, ReadPixelsContext) const

virtual void	generatingSurfaceIsDeleted ()

virtual sk_sp< SkData >	onRefEncoded () const

virtual bool	onAsLegacyBitmap (GrDirectContext , SkBitmap ) const

virtual Type	type () const =0

bool	isLazyGenerated () const override

bool	isRasterBacked () const

bool	isGaneshBacked () const

bool	isGraphiteBacked () const

bool	isYUVA () const

bool	isTextureBacked () const override

virtual void	notifyAddedToRasterCache () const

virtual sk_sp< SkImage >	onReinterpretColorSpace (sk_sp< SkColorSpace >) const =0

virtual sk_sp< SkImage >	onMakeWithMipmaps (sk_sp< SkMipmap >) const

Public Member Functions inherited from SkImage
const SkImageInfo &	imageInfo () const

int	width () const

int	height () const

SkISize	dimensions () const

SkIRect	bounds () const

uint32_t	uniqueID () const

SkAlphaType	alphaType () const

SkColorType	colorType () const

SkColorSpace *	colorSpace () const

sk_sp< SkColorSpace >	refColorSpace () const

bool	isAlphaOnly () const

bool	isOpaque () const

sk_sp< SkShader >	makeShader (SkTileMode tmx, SkTileMode tmy, const SkSamplingOptions &, const SkMatrix *localMatrix=nullptr) const

sk_sp< SkShader >	makeShader (SkTileMode tmx, SkTileMode tmy, const SkSamplingOptions &sampling, const SkMatrix &lm) const

sk_sp< SkShader >	makeShader (const SkSamplingOptions &sampling, const SkMatrix &lm) const

sk_sp< SkShader >	makeShader (const SkSamplingOptions &sampling, const SkMatrix *lm=nullptr) const

sk_sp< SkShader >	makeRawShader (SkTileMode tmx, SkTileMode tmy, const SkSamplingOptions &, const SkMatrix *localMatrix=nullptr) const

sk_sp< SkShader >	makeRawShader (SkTileMode tmx, SkTileMode tmy, const SkSamplingOptions &sampling, const SkMatrix &lm) const

sk_sp< SkShader >	makeRawShader (const SkSamplingOptions &sampling, const SkMatrix &lm) const

sk_sp< SkShader >	makeRawShader (const SkSamplingOptions &sampling, const SkMatrix *lm=nullptr) const

bool	peekPixels (SkPixmap *pixmap) const

bool	readPixels (GrDirectContext context, const SkImageInfo &dstInfo, void dstPixels, size_t dstRowBytes, int srcX, int srcY, CachingHint cachingHint=kAllow_CachingHint) const

bool	readPixels (GrDirectContext *context, const SkPixmap &dst, int srcX, int srcY, CachingHint cachingHint=kAllow_CachingHint) const

bool	readPixels (const SkImageInfo &dstInfo, void *dstPixels, size_t dstRowBytes, int srcX, int srcY, CachingHint cachingHint=kAllow_CachingHint) const

bool	readPixels (const SkPixmap &dst, int srcX, int srcY, CachingHint cachingHint=kAllow_CachingHint) const

void	asyncRescaleAndReadPixels (const SkImageInfo &info, const SkIRect &srcRect, RescaleGamma rescaleGamma, RescaleMode rescaleMode, ReadPixelsCallback callback, ReadPixelsContext context) const

void	asyncRescaleAndReadPixelsYUV420 (SkYUVColorSpace yuvColorSpace, sk_sp< SkColorSpace > dstColorSpace, const SkIRect &srcRect, const SkISize &dstSize, RescaleGamma rescaleGamma, RescaleMode rescaleMode, ReadPixelsCallback callback, ReadPixelsContext context) const

void	asyncRescaleAndReadPixelsYUVA420 (SkYUVColorSpace yuvColorSpace, sk_sp< SkColorSpace > dstColorSpace, const SkIRect &srcRect, const SkISize &dstSize, RescaleGamma rescaleGamma, RescaleMode rescaleMode, ReadPixelsCallback callback, ReadPixelsContext context) const

bool	scalePixels (const SkPixmap &dst, const SkSamplingOptions &, CachingHint cachingHint=kAllow_CachingHint) const

sk_sp< SkData >	refEncodedData () const

bool	hasMipmaps () const

bool	isProtected () const

sk_sp< SkImage >	withDefaultMipmaps () const

sk_sp< SkImage >	makeNonTextureImage (GrDirectContext *=nullptr) const

sk_sp< SkImage >	makeRasterImage (GrDirectContext *, CachingHint cachingHint=kDisallow_CachingHint) const

sk_sp< SkImage >	makeRasterImage (CachingHint cachingHint=kDisallow_CachingHint) const

bool	asLegacyBitmap (SkBitmap *bitmap, LegacyBitmapMode legacyBitmapMode=kRO_LegacyBitmapMode) const

sk_sp< SkImage >	reinterpretColorSpace (sk_sp< SkColorSpace > newColorSpace) const

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()

virtual	~SkRefCntBase ()

bool	unique () const

void	ref () const

void	unref () const

Static Public Member Functions
static bool	ValidateBackendTexture (const GrCaps *, const GrBackendTexture &tex, GrColorType grCT, SkColorType ct, SkAlphaType at, sk_sp< SkColorSpace > cs)

static bool	ValidateCompressedBackendTexture (const GrCaps *, const GrBackendTexture &tex, SkAlphaType)

static sk_sp< GrTextureProxy >	MakePromiseImageLazyProxy (GrContextThreadSafeProxy *, SkISize dimensions, const GrBackendFormat &, skgpu::Mipmapped, SkImages::PromiseImageTextureFulfillProc, sk_sp< skgpu::RefCntedCallback > releaseHelper)

Protected Member Functions
	SkImage_GaneshBase (sk_sp< GrImageContext >, SkImageInfo, uint32_t uniqueID)

sk_sp< SkImage >	onMakeSubset (skgpu::graphite::Recorder *, const SkIRect &subset, RequiredProperties) const final

sk_sp< SkImage >	makeColorTypeAndColorSpace (skgpu::graphite::Recorder *, SkColorType, sk_sp< SkColorSpace >, RequiredProperties) const final

virtual sk_sp< SkImage >	onMakeColorTypeAndColorSpace (SkColorType, sk_sp< SkColorSpace >, GrDirectContext *) const=0

Protected Member Functions inherited from SkImage_Base
	SkImage_Base (const SkImageInfo &info, uint32_t uniqueID)

Protected Attributes
sk_sp< GrImageContext >	fContext

Additional Inherited Members
Public Types inherited from SkImage_Base
enum class	Type { kRaster , kRasterPinnable , kLazy , kLazyPicture , kGanesh , kGaneshYUVA , kGraphite , kGraphiteYUVA }

Public Types inherited from SkImage
enum	CachingHint { kAllow_CachingHint , kDisallow_CachingHint }

enum class	RescaleGamma : bool { kSrc , kLinear }

enum class	RescaleMode { kNearest , kLinear , kRepeatedLinear , kRepeatedCubic }

enum	LegacyBitmapMode { kRO_LegacyBitmapMode }

using	ReadPixelsContext = void *

using	ReadPixelsCallback = void(ReadPixelsContext, std::unique_ptr< const AsyncReadResult >)

Detailed Description

Definition at line 54 of file SkImage_GaneshBase.h.

Constructor & Destructor Documentation

◆ SkImage_GaneshBase()

SkImage_GaneshBase::SkImage_GaneshBase	(	sk_sp< GrImageContext >	context,
		SkImageInfo	info,
		uint32_t	uniqueID
	)

protected

Definition at line 61 of file SkImage_GaneshBase.cpp.

64 : SkImage_Base(std::move(info), uniqueID), fContext(std::move(context)) {}

info

static void info(const char *fmt,...) SK_PRINTF_LIKE(1

Definition DM.cpp:213

SkImage_GaneshBase::fContext

sk_sp< GrImageContext > fContext

Definition SkImage_GaneshBase.h:127

SkImage_GaneshBase::context

GrImageContext * context() const final

Definition SkImage_GaneshBase.h:64

SkImage::uniqueID

uint32_t uniqueID() const

Definition SkImage.h:311

SkImage::SkImage_Base

friend class SkImage_Base

Definition SkImage.h:936

Member Function Documentation

◆ asFragmentProcessor()

virtual std::unique_ptr< GrFragmentProcessor > SkImage_GaneshBase::asFragmentProcessor	(	GrRecordingContext *	,
		SkSamplingOptions	,
		const SkTileMode	[2],
		const SkMatrix &	,
		const SkRect *	,
		const SkRect *
	)		const

pure virtual

Implemented in SkImage_Ganesh, and SkImage_GaneshYUVA.

◆ asView()

virtual std::tuple< GrSurfaceProxyView, GrColorType > SkImage_GaneshBase::asView	(	GrRecordingContext *	,
		skgpu::Mipmapped	,
		GrImageTexGenPolicy
	)		const

pure virtual

Implemented in SkImage_Ganesh, and SkImage_GaneshYUVA.

◆ context()

GrImageContext * SkImage_GaneshBase::context ( ) const

inlinefinalvirtual

Reimplemented from SkImage_Base.

Definition at line 64 of file SkImage_GaneshBase.h.

64{ return fContext.get(); }

sk_sp::get

T * get() const

Definition SkRefCnt.h:303

◆ directContext()

GrDirectContext * SkImage_GaneshBase::directContext ( ) const

inlinefinalvirtual

this->context() try-casted to GrDirectContext. Useful for migrations – avoid otherwise!

Reimplemented from SkImage_Base.

Definition at line 65 of file SkImage_GaneshBase.h.

65{ return GrAsDirectContext(this->context()); }

GrAsDirectContext

static GrDirectContext * GrAsDirectContext(GrContext_Base *base)

Definition GrRecordingContext.h:281

◆ flush()

virtual GrSemaphoresSubmitted SkImage_GaneshBase::flush	(	GrDirectContext *	,
		const GrFlushInfo &
	)		const

pure virtual

Implemented in SkImage_Ganesh, and SkImage_GaneshYUVA.

◆ getROPixels()

bool SkImage_GaneshBase::getROPixels	(	GrDirectContext *	dContext,
		SkBitmap *	dst,
		CachingHint	chint
	)		const

finalvirtual

Implements SkImage_Base.

Definition at line 118 of file SkImage_GaneshBase.cpp.

                                                              {
    if (!fContext->priv().matches(dContext)) {
        return false;
    }
 
    const auto desc = SkBitmapCacheDesc::Make(this);
    if (SkBitmapCache::Find(desc, dst)) {
        SkASSERT(dst->isImmutable());
        SkASSERT(dst->getPixels());
        return true;
    }
 
    SkBitmapCache::RecPtr rec = nullptr;
    SkPixmap pmap;
    if (kAllow_CachingHint == chint) {
        rec = SkBitmapCache::Alloc(desc, this->imageInfo(), &pmap);
        if (!rec) {
            return false;
        }
    } else {
        if (!dst->tryAllocPixels(this->imageInfo()) || !dst->peekPixels(&pmap)) {
            return false;
        }
    }
 
    auto [view, ct] = skgpu::ganesh::AsView(dContext, this, skgpu::Mipmapped::kNo);
    if (!view) {
        return false;
    }
 
    GrColorInfo colorInfo(ct, this->alphaType(), this->refColorSpace());
    auto sContext = dContext->priv().makeSC(std::move(view), std::move(colorInfo));
    if (!sContext) {
        return false;
    }
 
    if (!sContext->readPixels(dContext, pmap, {0, 0})) {
        return false;
    }
 
    if (rec) {
        SkBitmapCache::Add(std::move(rec), dst);
        this->notifyAddedToRasterCache();
    }
    return true;
}

◆ isValid()

bool SkImage_GaneshBase::isValid ( GrRecordingContext * context ) const

finalvirtual

Returns true if SkImage can be drawn on either raster surface or GPU surface. If context is nullptr, tests if SkImage draws on raster surface; otherwise, tests if SkImage draws on GPU surface associated with context.

SkImage backed by GPU texture may become invalid if associated context is invalid. lazy image may be invalid and may not draw to raster surface or GPU surface or both.

Parameters

context GPU context

Returns: true if SkImage can be drawn

example: https://fiddle.skia.org/c/@Image_isValid

Implements SkImage.

Definition at line 257 of file SkImage_GaneshBase.cpp.

                                                                  {
    if (context && context->abandoned()) {
        return false;
    }
    if (fContext->priv().abandoned()) {
        return false;
    }
    if (context && !fContext->priv().matches(context)) {
        return false;
    }
    return true;
}

◆ makeColorTypeAndColorSpace() [1/2]

sk_sp< SkImage > SkImage_GaneshBase::makeColorTypeAndColorSpace	(	GrDirectContext *	direct,
		SkColorType	targetColorType,
		sk_sp< SkColorSpace >	targetCS
	)		const

finalvirtual

Experimental. Creates SkImage in target SkColorType and SkColorSpace. Returns nullptr if SkImage could not be created.

Returns original SkImage if it is in target SkColorType and SkColorSpace.

If this image is texture-backed, the context parameter is required and must match the context of the source image.

Parameters

direct	The GrDirectContext in play, if it exists
targetColorType	SkColorType of returned SkImage
targetColorSpace	SkColorSpace of returned SkImage

Returns: created SkImage in target SkColorType and SkColorSpace

Reimplemented from SkImage_Base.

Definition at line 270 of file SkImage_GaneshBase.cpp.

                                                                                                  {
    if (kUnknown_SkColorType == targetColorType || !targetCS) {
        return nullptr;
    }
 
    auto myContext = this->context();
    // This check is also performed in the subclass, but we do it here for the short-circuit below.
    if (!myContext || !myContext->priv().matches(dContext)) {
        return nullptr;
    }
 
    SkColorType colorType = this->colorType();
    SkColorSpace* colorSpace = this->colorSpace();
    if (!colorSpace) {
        colorSpace = sk_srgb_singleton();
    }
    if (colorType == targetColorType &&
        (SkColorSpace::Equals(colorSpace, targetCS.get()) || this->isAlphaOnly())) {
        return sk_ref_sp(const_cast<SkImage_GaneshBase*>(this));
    }
 
    return this->onMakeColorTypeAndColorSpace(targetColorType, std::move(targetCS), dContext);
}

◆ makeColorTypeAndColorSpace() [2/2]

sk_sp< SkImage > SkImage_GaneshBase::makeColorTypeAndColorSpace	(	skgpu::graphite::Recorder *	,
		SkColorType	targetColorType,
		sk_sp< SkColorSpace >	targetColorSpace,
		RequiredProperties
	)		const

finalprotectedvirtual

Experimental. Creates SkImage in target SkColorType and SkColorSpace. Returns nullptr if SkImage could not be created.

Returns original SkImage if it is in target SkColorType and SkColorSpace.

If this image is graphite-backed, the recorder parameter is required.

Parameters

targetColorType	SkColorType of returned SkImage
targetColorSpace	SkColorSpace of returned SkImage
recorder	The Recorder in which to create the new image
RequiredProperties	properties the returned SkImage must possess (e.g. mipmaps)

Returns: created SkImage in target SkColorType and SkColorSpace

Reimplemented from SkImage_Base.

Definition at line 225 of file SkImage_GaneshBase.cpp.

                                                                                        {
    SkDEBUGFAIL("Cannot convert Ganesh-backed image to Graphite");
    return nullptr;
}

◆ MakePromiseImageLazyProxy()

sk_sp< GrTextureProxy > SkImage_GaneshBase::MakePromiseImageLazyProxy	(	GrContextThreadSafeProxy *	tsp,
		SkISize	dimensions,
		const GrBackendFormat &	backendFormat,
		skgpu::Mipmapped	mipmapped,
		SkImages::PromiseImageTextureFulfillProc	fulfillProc,
		sk_sp< skgpu::RefCntedCallback >	releaseHelper
	)

static

This class is the lazy instantiation callback for promise images. It manages calling the client's Fulfill and Release procs. It attempts to reuse a GrTexture instance in cases where the client provides the same GrPromiseImageTexture as Fulfill results for multiple SkImages. The created GrTexture is given a key based on a unique ID associated with the GrPromiseImageTexture.

A key invalidation message is installed on the GrPromiseImageTexture so that the GrTexture is deleted once it can no longer be used to instantiate a proxy.

Definition at line 296 of file SkImage_GaneshBase.cpp.

                                                    {
    SkASSERT(tsp);
    SkASSERT(!dimensions.isEmpty());
    SkASSERT(releaseHelper);
 
    if (!fulfillProc) {
        return nullptr;
    }
 
    if (mipmapped == skgpu::Mipmapped::kYes &&
        GrTextureTypeHasRestrictedSampling(backendFormat.textureType())) {
        // It is invalid to have a GL_TEXTURE_EXTERNAL or GL_TEXTURE_RECTANGLE and have mips as
        // well.
        return nullptr;
    }
 
    /**
     * This class is the lazy instantiation callback for promise images. It manages calling the
     * client's Fulfill and Release procs. It attempts to reuse a GrTexture instance in
     * cases where the client provides the same GrPromiseImageTexture as Fulfill results for
     * multiple SkImages. The created GrTexture is given a key based on a unique ID associated with
     * the GrPromiseImageTexture.
     *
     * A key invalidation message is installed on the GrPromiseImageTexture so that the GrTexture
     * is deleted once it can no longer be used to instantiate a proxy.
     */
    class PromiseLazyInstantiateCallback {
    public:
        PromiseLazyInstantiateCallback(SkImages::PromiseImageTextureFulfillProc fulfillProc,
                                       sk_sp<skgpu::RefCntedCallback> releaseHelper)
                : fFulfillProc(fulfillProc), fReleaseHelper(std::move(releaseHelper)) {}
        PromiseLazyInstantiateCallback(PromiseLazyInstantiateCallback&&) = default;
        PromiseLazyInstantiateCallback(const PromiseLazyInstantiateCallback&) {
            // Because we get wrapped in std::function we must be copyable. But we should never
            // be copied.
            SkASSERT(false);
        }
        PromiseLazyInstantiateCallback& operator=(PromiseLazyInstantiateCallback&&) = default;
        PromiseLazyInstantiateCallback& operator=(const PromiseLazyInstantiateCallback&) {
            SkASSERT(false);
            return *this;
        }
 
        ~PromiseLazyInstantiateCallback() {
            // Our destructor can run on any thread. We trigger the unref of fTexture by message.
            if (fTexture) {
                GrResourceCache::ReturnResourceFromThread(std::move(fTexture), fTextureContextID);
            }
        }
 
        GrSurfaceProxy::LazyCallbackResult operator()(GrResourceProvider* resourceProvider,
                                                      const GrSurfaceProxy::LazySurfaceDesc&) {
            // We use the unique key in a way that is unrelated to the SkImage-based key that the
            // proxy may receive, hence kUnsynced.
            static constexpr auto kKeySyncMode =
                    GrSurfaceProxy::LazyInstantiationKeyMode::kUnsynced;
 
            // In order to make the SkImage "thread safe" we rely on holding an extra ref to the
            // texture in the callback and signalling the unref via a message to the resource cache.
            // We need to extend the callback's lifetime to that of the proxy.
            static constexpr auto kReleaseCallbackOnInstantiation = false;
 
            // Our proxy is getting instantiated for the second+ time. We are only allowed to call
            // Fulfill once. So return our cached result.
            if (fTexture) {
                return {fTexture, kReleaseCallbackOnInstantiation, kKeySyncMode};
            } else if (fFulfillProcFailed) {
                // We've already called fulfill and it failed. Our contract says that we should only
                // call each callback once.
                return {};
            }
 
            SkImages::PromiseImageTextureContext textureContext = fReleaseHelper->context();
            sk_sp<GrPromiseImageTexture> promiseTexture = fFulfillProc(textureContext);
 
            if (!promiseTexture) {
                fFulfillProcFailed = true;
                return {};
            }
 
            const GrBackendTexture& backendTexture = promiseTexture->backendTexture();
            if (!backendTexture.isValid()) {
                return {};
            }
 
            fTexture = resourceProvider->wrapBackendTexture(
                    backendTexture, kBorrow_GrWrapOwnership, GrWrapCacheable::kNo, kRead_GrIOType);
            if (!fTexture) {
                return {};
            }
            fTexture->setRelease(fReleaseHelper);
            auto dContext = fTexture->getContext();
            fTextureContextID = dContext->directContextID();
            return {fTexture, kReleaseCallbackOnInstantiation, kKeySyncMode};
        }
 
    private:
        SkImages::PromiseImageTextureFulfillProc fFulfillProc;
        sk_sp<skgpu::RefCntedCallback> fReleaseHelper;
        sk_sp<GrTexture> fTexture;
        GrDirectContext::DirectContextID fTextureContextID;
        bool fFulfillProcFailed = false;
    } callback(fulfillProc, std::move(releaseHelper));
 
    return GrProxyProvider::CreatePromiseProxy(
            tsp, std::move(callback), backendFormat, dimensions, mipmapped);
}

◆ makeSubset()

sk_sp< SkImage > SkImage_GaneshBase::makeSubset	(	GrDirectContext *	direct,
		const SkIRect &	subset
	)		const

finalvirtual

Returns subset of this image.

Returns nullptr if any of the following are true:

Subset is empty
Subset is not contained inside the image's bounds
Pixels in the source image could not be read or copied
This image is texture-backed and the provided context is null or does not match the source image's context.

If the source image was texture-backed, the resulting image will be texture-backed also. Otherwise, the returned image will be raster-backed.

Parameters

direct	the GrDirectContext of the source image (nullptr is ok if the source image is not texture-backed).
subset	bounds of returned SkImage

Returns: the subsetted image, or nullptr

example: https://fiddle.skia.org/c/@Image_makeSubset

Reimplemented from SkImage_Base.

Definition at line 167 of file SkImage_GaneshBase.cpp.

                                                                           {
    if (!fContext->priv().matches(direct)) {
        return nullptr;
    }
 
    if (subset.isEmpty()) {
        return nullptr;
    }
 
    const SkIRect bounds = SkIRect::MakeWH(this->width(), this->height());
    if (!bounds.contains(subset)) {
        return nullptr;
    }
 
    // optimization : return self if the subset == our bounds
    if (bounds == subset) {
        return sk_ref_sp(const_cast<SkImage_GaneshBase*>(this));
    }
 
    return this->onMakeSubset(direct, subset);
}

◆ onMakeColorTypeAndColorSpace()

virtual sk_sp< SkImage > SkImage_Base::onMakeColorTypeAndColorSpace	(	SkColorType	,
		sk_sp< SkColorSpace >	,
		GrDirectContext *
	)		const

protectedvirtual

Implements SkImage_Base.

Reimplemented in SkImage_GaneshYUVA, and SkImage_GaneshYUVA.

◆ onMakeSubset() [1/2]

sk_sp< SkImage > SkImage_GaneshBase::onMakeSubset	(	GrDirectContext *	direct,
		const SkIRect &	subset
	)		const

finalvirtual

Implements SkImage_Base.

Definition at line 190 of file SkImage_GaneshBase.cpp.

                                                                             {
    if (!fContext->priv().matches(direct)) {
        return nullptr;
    }
    auto [view, ct] = skgpu::ganesh::AsView(direct, this, skgpu::Mipmapped::kNo);
    SkASSERT(view);
    SkASSERT(ct == SkColorTypeToGrColorType(this->colorType()));
 
    skgpu::Budgeted isBudgeted = view.proxy()->isBudgeted();
    auto copyView = GrSurfaceProxyView::Copy(direct,
                                             std::move(view),
                                             skgpu::Mipmapped::kNo,
                                             subset,
                                             SkBackingFit::kExact,
                                             isBudgeted,
                                             /*label=*/"ImageGpuBase_MakeSubset");
 
    if (!copyView) {
        return nullptr;
    }
 
    return sk_make_sp<SkImage_Ganesh>(sk_ref_sp(direct),
                                      kNeedNewImageUniqueID,
                                      std::move(copyView),
                                      this->imageInfo().colorInfo());
}

◆ onMakeSubset() [2/2]

sk_sp< SkImage > SkImage_GaneshBase::onMakeSubset	(	skgpu::graphite::Recorder *	,
		const SkIRect &	subset,
		RequiredProperties
	)		const

finalprotectedvirtual

Implements SkImage_Base.

Definition at line 218 of file SkImage_GaneshBase.cpp.

                                                                          {
    SkDEBUGFAIL("Cannot convert Ganesh-backed image to Graphite");
    return nullptr;
}

◆ onReadPixels()

bool SkImage_GaneshBase::onReadPixels	(	GrDirectContext *	dContext,
		const SkImageInfo &	dstInfo,
		void *	dstPixels,
		size_t	dstRB,
		int	srcX,
		int	srcY,
		CachingHint
	)		const

overridevirtual

Implements SkImage_Base.

Definition at line 233 of file SkImage_GaneshBase.cpp.

                                                         {
    if (!fContext->priv().matches(dContext) ||
        !SkImageInfoValidConversion(dstInfo, this->imageInfo())) {
        return false;
    }
 
    auto [view, ct] = skgpu::ganesh::AsView(dContext, this, skgpu::Mipmapped::kNo);
    SkASSERT(view);
 
    GrColorInfo colorInfo(ct, this->alphaType(), this->refColorSpace());
    auto sContext = dContext->priv().makeSC(std::move(view), colorInfo);
    if (!sContext) {
        return false;
    }
 
    return sContext->readPixels(dContext, {dstInfo, dstPixels, dstRB}, {srcX, srcY});
}

◆ origin()

virtual GrSurfaceOrigin SkImage_GaneshBase::origin ( ) const

pure virtual

Implemented in SkImage_Ganesh, and SkImage_GaneshYUVA.

◆ ValidateBackendTexture()

bool SkImage_GaneshBase::ValidateBackendTexture	(	const GrCaps *	caps,
		const GrBackendTexture &	tex,
		GrColorType	grCT,
		SkColorType	ct,
		SkAlphaType	at,
		sk_sp< SkColorSpace >	cs
	)

static

Definition at line 68 of file SkImage_GaneshBase.cpp.

                                                                        {
    if (!tex.isValid()) {
        return false;
    }
    SkColorInfo info(ct, at, cs);
    if (!SkColorInfoIsValid(info)) {
        return false;
    }
    GrBackendFormat backendFormat = tex.getBackendFormat();
    if (!backendFormat.isValid()) {
        return false;
    }
 
    return caps->areColorTypeAndFormatCompatible(grCT, backendFormat);
}

◆ ValidateCompressedBackendTexture()

bool SkImage_GaneshBase::ValidateCompressedBackendTexture	(	const GrCaps *	caps,
		const GrBackendTexture &	tex,
		SkAlphaType	at
	)

static

Definition at line 89 of file SkImage_GaneshBase.cpp.

                                                                          {
    if (!tex.isValid() || tex.width() <= 0 || tex.height() <= 0) {
        return false;
    }
 
    if (tex.width() > caps->maxTextureSize() || tex.height() > caps->maxTextureSize()) {
        return false;
    }
 
    if (at == kUnknown_SkAlphaType) {
        return false;
    }
 
    GrBackendFormat backendFormat = tex.getBackendFormat();
    if (!backendFormat.isValid()) {
        return false;
    }
 
    if (!caps->isFormatCompressed(backendFormat)) {
        return false;
    }
 
    return true;
}

Member Data Documentation

◆ fContext

sk_sp<GrImageContext> SkImage_GaneshBase::fContext

protected

Definition at line 127 of file SkImage_GaneshBase.h.

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

third_party/skia/src/gpu/ganesh/image/SkImage_GaneshBase.h
third_party/skia/src/gpu/ganesh/image/SkImage_GaneshBase.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SkImage_GaneshBase()

Member Function Documentation

◆ asFragmentProcessor()

◆ asView()

◆ context()

◆ directContext()

◆ flush()

◆ getROPixels()

◆ isValid()

◆ makeColorTypeAndColorSpace() [1/2]

◆ makeColorTypeAndColorSpace() [2/2]

◆ MakePromiseImageLazyProxy()

◆ makeSubset()

◆ onMakeColorTypeAndColorSpace()

◆ onMakeSubset() [1/2]

◆ onMakeSubset() [2/2]

◆ onReadPixels()

◆ origin()

◆ ValidateBackendTexture()

◆ ValidateCompressedBackendTexture()

Member Data Documentation

◆ fContext