TextureSourceImageGenerator Class Reference

Inheritance diagram for TextureSourceImageGenerator:

Public Member Functions
	TextureSourceImageGenerator (SkImageInfo ii, SkwasmObject textureSource, Skwasm::Surface *surface)
std::unique_ptr< GrExternalTexture >	generateExternalTexture (GrRecordingContext *context, skgpu::Mipmapped mipmapped) override
Public Member Functions inherited from GrExternalTextureGenerator
	GrExternalTextureGenerator (const SkImageInfo &info)
GrSurfaceProxyView	onGenerateTexture (GrRecordingContext *, const SkImageInfo &, skgpu::Mipmapped, GrImageTexGenPolicy) override
virtual std::unique_ptr< GrExternalTexture >	generateExternalTexture (GrRecordingContext *, skgpu::Mipmapped)=0
Public Member Functions inherited from GrTextureGenerator
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)
virtual bool	isTextureGenerator () const

Additional Inherited Members
Protected Member Functions inherited from GrTextureGenerator
	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 &)
Protected Attributes inherited from SkImageGenerator
const SkImageInfo	fInfo
Static Protected Attributes inherited from SkImageGenerator
static constexpr int	kNeedNewImageUniqueID = 0

Detailed Description

Definition at line 83 of file image.cpp.

Constructor & Destructor Documentation

TextureSourceImageGenerator()

TextureSourceImageGenerator::TextureSourceImageGenerator ( SkImageInfo  ii, SkwasmObject  textureSource, Skwasm::Surface *  surface  )

inline

Definition at line 85 of file image.cpp.

      : GrExternalTextureGenerator(ii),
        _textureSourceWrapper(
            surface->createTextureSourceWrapper(textureSource)) {}

Member Function Documentation

generateExternalTexture()

std::unique_ptr< GrExternalTexture > TextureSourceImageGenerator::generateExternalTexture ( GrRecordingContext *  context, skgpu::Mipmapped  mipmapped  )

inlineoverridevirtual

Implements GrExternalTextureGenerator.

Definition at line 92 of file image.cpp.

                                         {
    GrGLTextureInfo glInfo;
    glInfo.fID = skwasm_createGlTextureFromTextureSource(
        _textureSourceWrapper->getTextureSource(), fInfo.width(),
        fInfo.height());
    glInfo.fFormat = GL_RGBA8_OES;
    glInfo.fTarget = GL_TEXTURE_2D;
 
    auto backendTexture = GrBackendTextures::MakeGL(
        fInfo.width(), fInfo.height(), skgpu::Mipmapped::kNo, glInfo);
 
    // In order to bind the image source to the texture, makeTexture has changed
    // which texture is "in focus" for the WebGL context.
    GrAsDirectContext(context)->resetContext(kTextureBinding_GrGLBackendState);
    return std::make_unique<ExternalWebGLTexture>(
        backendTexture, glInfo.fID, emscripten_webgl_get_current_context());
  }

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

• lib/web_ui/skwasm/image.cpp