#include <GrTextureGenerator.h>

Inheritance diagram for GrTextureGenerator:

Public Member Functions
bool	isTextureGenerator () const final

GrSurfaceProxyView	generateTexture (GrRecordingContext *, const SkImageInfo &info, skgpu::Mipmapped mipmapped, GrImageTexGenPolicy)

virtual GrSurfaceProxyView	onGenerateTexture (GrRecordingContext *, const SkImageInfo &, skgpu::Mipmapped, GrImageTexGenPolicy)=0

virtual GrSurfaceOrigin	origin () const

Public Member Functions inherited from SkImageGenerator
virtual	~SkImageGenerator ()

uint32_t	uniqueID () const

sk_sp< SkData >	refEncodedData ()

const SkImageInfo &	getInfo () const

bool	isValid (GrRecordingContext *context) const

bool	isProtected () const

bool	getPixels (const SkImageInfo &info, void *pixels, size_t rowBytes)

bool	getPixels (const SkPixmap &pm)

bool	queryYUVAInfo (const SkYUVAPixmapInfo::SupportedDataTypes &supportedDataTypes, SkYUVAPixmapInfo *yuvaPixmapInfo) const

bool	getYUVAPlanes (const SkYUVAPixmaps &yuvaPixmaps)

Protected Member Functions
	GrTextureGenerator (const SkImageInfo &info, uint32_t uniqueId=kNeedNewImageUniqueID)

Protected Member Functions inherited from SkImageGenerator
	SkImageGenerator (const SkImageInfo &info, uint32_t uniqueId=kNeedNewImageUniqueID)

virtual sk_sp< SkData >	onRefEncodedData ()

virtual bool	onGetPixels (const SkImageInfo &, void *, size_t, const Options &)

virtual bool	onIsValid (GrRecordingContext *) const

virtual bool	onIsProtected () const

virtual bool	onQueryYUVAInfo (const SkYUVAPixmapInfo::SupportedDataTypes &, SkYUVAPixmapInfo *) const

virtual bool	onGetYUVAPlanes (const SkYUVAPixmaps &)

Additional Inherited Members
Protected Attributes inherited from SkImageGenerator
const SkImageInfo	fInfo

Static Protected Attributes inherited from SkImageGenerator
static constexpr int	kNeedNewImageUniqueID = 0

Detailed Description

Definition at line 23 of file GrTextureGenerator.h.

Constructor & Destructor Documentation

◆ GrTextureGenerator()

GrTextureGenerator::GrTextureGenerator	(	const SkImageInfo &	info,
		uint32_t	uniqueId = `kNeedNewImageUniqueID`
	)

protected

Definition at line 42 of file GrTextureGenerator.cpp.

43 : SkImageGenerator(info, uniqueID) {}

info

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

Definition DM.cpp:213

SkImageGenerator

Definition SkImageGenerator.h:28

SkImageGenerator::uniqueID

uint32_t uniqueID() const

Definition SkImageGenerator.h:36

Member Function Documentation

◆ generateTexture()

GrSurfaceProxyView GrTextureGenerator::generateTexture	(	GrRecordingContext *	ctx,
		const SkImageInfo &	info,
		skgpu::Mipmapped	mipmapped,
		GrImageTexGenPolicy	texGenPolicy
	)

If the generator can natively/efficiently return its pixels as a GPU image (backed by a texture) this will return that image. If not, this will return NULL.

Regarding the GrRecordingContext parameter:

It must be non-NULL. The generator should only succeed if:

its internal context is the same
it can somehow convert its texture into one that is valid for the provided context.

If the mipmapped parameter is kYes, the generator should try to create a TextureProxy that at least has the mip levels allocated and the base layer filled in. If this is not possible, the generator is allowed to return a non mipped proxy, but this will have some additional overhead in later allocating mips and copying of the base layer.

GrImageTexGenPolicy determines whether or not a new texture must be created (and its budget status) or whether this may (but is not required to) return a pre-existing texture that is retained by the generator (kDraw).

Definition at line 45 of file GrTextureGenerator.cpp.

                                                                                         {
    SkASSERT_RELEASE(fInfo.dimensions() == info.dimensions());
 
    if (!ctx || ctx->abandoned()) {
        return {};
    }
 
    return this->onGenerateTexture(ctx, info, mipmapped, texGenPolicy);
}

◆ isTextureGenerator()

bool GrTextureGenerator::isTextureGenerator ( ) const

inlinefinalvirtual

Reimplemented from SkImageGenerator.

Definition at line 25 of file GrTextureGenerator.h.

25{ return true; }

◆ onGenerateTexture()

virtual GrSurfaceProxyView GrTextureGenerator::onGenerateTexture	(	GrRecordingContext *	,
		const SkImageInfo &	,
		skgpu::Mipmapped	,
		GrImageTexGenPolicy
	)

pure virtual

Implemented in GrBackendTextureImageGenerator, GrExternalTextureGenerator, GrAHardwareBufferImageGenerator, and TextureGenerator.

◆ origin()

virtual GrSurfaceOrigin GrTextureGenerator::origin ( ) const

inlinevirtual

Reimplemented in GrAHardwareBufferImageGenerator.

Definition at line 60 of file GrTextureGenerator.h.

60{ return kTopLeft_GrSurfaceOrigin; }

kTopLeft_GrSurfaceOrigin

@ kTopLeft_GrSurfaceOrigin

Definition GrTypes.h:148

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

third_party/skia/include/private/gpu/ganesh/GrTextureGenerator.h
third_party/skia/src/gpu/ganesh/image/GrTextureGenerator.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members