skiagm::EncodeJpegAlphaOptsGM Class Reference

Inheritance diagram for skiagm::EncodeJpegAlphaOptsGM:

Public Member Functions
	EncodeJpegAlphaOptsGM ()
Public Member Functions inherited from skiagm::GM
	GM (SkColor backgroundColor=SK_ColorWHITE)
virtual	~GM ()
void	setMode (Mode mode)
Mode	getMode () const
DrawResult	gpuSetup (SkCanvas *, SkString *errorMsg, GraphiteTestContext *=nullptr)
void	gpuTeardown ()
void	onceBeforeDraw ()
DrawResult	draw (SkCanvas *canvas)
DrawResult	draw (SkCanvas *, SkString *errorMsg)
void	drawBackground (SkCanvas *)
DrawResult	drawContent (SkCanvas *canvas)
DrawResult	drawContent (SkCanvas *, SkString *errorMsg)
virtual SkISize	getISize ()=0
virtual SkString	getName () const =0
virtual bool	runAsBench () const
SkScalar	width ()
SkScalar	height ()
SkColor	getBGColor () const
void	setBGColor (SkColor)
void	drawSizeBounds (SkCanvas *, SkColor)
bool	animate (double)
virtual bool	onChar (SkUnichar)
bool	getControls (SkMetaData *controls)
void	setControls (const SkMetaData &controls)
virtual void	modifyGrContextOptions (GrContextOptions *)
virtual void	modifyGraphiteContextOptions (skgpu::graphite::ContextOptions *) const
virtual bool	isBazelOnly () const
virtual std::map< std::string, std::string >	getGoldKeys () const

Protected Member Functions
SkString	getName () const override
SkISize	getISize () override
DrawResult	onDraw (SkCanvas *canvas, SkString *errorMsg) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onOnceBeforeDraw ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual void	onDraw (SkCanvas *)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Additional Inherited Members
Public Types inherited from skiagm::GM
enum	Mode { kGM_Mode , kSample_Mode , kBench_Mode }
using	DrawResult = skiagm::DrawResult
using	GraphiteTestContext = skiatest::graphite::GraphiteTestContext
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 44 of file encode_alpha_jpeg.cpp.

Constructor & Destructor Documentation

EncodeJpegAlphaOptsGM()

skiagm::EncodeJpegAlphaOptsGM::EncodeJpegAlphaOptsGM ( )

inline

Definition at line 46 of file encode_alpha_jpeg.cpp.

{}

Member Function Documentation

getISize()

SkISize skiagm::EncodeJpegAlphaOptsGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 51 of file encode_alpha_jpeg.cpp.

{ return SkISize::Make(400, 200); }

getName()

SkString skiagm::EncodeJpegAlphaOptsGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 49 of file encode_alpha_jpeg.cpp.

{ return SkString("encode-alpha-jpeg"); }

onDraw()

DrawResult skiagm::EncodeJpegAlphaOptsGM::onDraw ( SkCanvas *  canvas, SkString *  errorMsg  )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 53 of file encode_alpha_jpeg.cpp.

                                                                     {
        sk_sp<SkImage> srcImg = ToolUtils::GetResourceAsImage("images/rainbow-gradient.png");
        if (!srcImg) {
            *errorMsg = "Could not load images/rainbow-gradient.png. "
                        "Did you forget to set the resourcePath?";
            return DrawResult::kFail;
        }
        fStorage.reset(srcImg->width() * srcImg->height() *
                SkColorTypeBytesPerPixel(kRGBA_F16_SkColorType));
 
        SkPixmap src;
        SkImageInfo info = SkImageInfo::MakeN32Premul(srcImg->width(), srcImg->height(),
                canvas->imageInfo().colorSpace() ? SkColorSpace::MakeSRGB() : nullptr);
        read_into_pixmap(&src, info, fStorage.get(), srcImg);
 
        // Encode 8888 premul.
        auto img0 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kIgnore);
        auto img1 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kBlendOnBlack);
        canvas->drawImage(img0, 0.0f, 0.0f);
        canvas->drawImage(img1, 0.0f, 100.0f);
 
        // Encode 8888 unpremul
        info = info.makeAlphaType(kUnpremul_SkAlphaType);
        read_into_pixmap(&src, info, fStorage.get(), srcImg);
        img0 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kIgnore);
        img1 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kBlendOnBlack);
        canvas->drawImage(img0, 100.0f, 0.0f);
        canvas->drawImage(img1, 100.0f, 100.0f);
 
        // Encode F16 premul
        info = SkImageInfo::Make(srcImg->width(), srcImg->height(), kRGBA_F16_SkColorType,
                kPremul_SkAlphaType, SkColorSpace::MakeSRGB());
        read_into_pixmap(&src, info, fStorage.get(), srcImg);
        img0 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kIgnore);
        img1 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kBlendOnBlack);
        canvas->drawImage(img0, 200.0f, 0.0f);
        canvas->drawImage(img1, 200.0f, 100.0f);
 
        // Encode F16 unpremul
        info = info.makeAlphaType(kUnpremul_SkAlphaType);
        read_into_pixmap(&src, info, fStorage.get(), srcImg);
        img0 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kIgnore);
        img1 = encode_pixmap_and_make_image(src, SkJpegEncoder::AlphaOption::kBlendOnBlack);
        canvas->drawImage(img0, 300.0f, 0.0f);
        canvas->drawImage(img1, 300.0f, 100.0f);
 
        return DrawResult::kOk;
    }

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

• third_party/skia/gm/encode_alpha_jpeg.cpp