PictureImageFilterGM Class Reference

Inheritance diagram for PictureImageFilterGM:

Public Member Functions
	PictureImageFilterGM ()
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
void	onOnceBeforeDraw () override
sk_sp< SkImageFilter >	make (sk_sp< SkPicture > pic, SkRect r, const SkSamplingOptions &sampling)
sk_sp< SkImageFilter >	make (const SkSamplingOptions &sampling)
void	onDraw (SkCanvas *canvas) 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 65 of file pictureimagefilter.cpp.

Constructor & Destructor Documentation

PictureImageFilterGM()

PictureImageFilterGM::PictureImageFilterGM ( )

inline

Definition at line 67 of file pictureimagefilter.cpp.

{ }

Member Function Documentation

getISize()

SkISize PictureImageFilterGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 72 of file pictureimagefilter.cpp.

{ return SkISize::Make(600, 300); }

getName()

SkString PictureImageFilterGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 70 of file pictureimagefilter.cpp.

{ return SkString("pictureimagefilter"); }

make() [1/2]

sk_sp< SkImageFilter > PictureImageFilterGM::make ( const SkSamplingOptions &  sampling )

inlineprotected

Definition at line 85 of file pictureimagefilter.cpp.

                                                                 {
        return make(fPicture, fPicture->cullRect(), sampling);
    }

make() [2/2]

sk_sp< SkImageFilter > PictureImageFilterGM::make ( sk_sp< SkPicture >  pic, SkRect  r, const SkSamplingOptions &  sampling  )

inlineprotected

Definition at line 79 of file pictureimagefilter.cpp.

                                                                                                 {
        SkISize dim = { SkScalarRoundToInt(r.width()), SkScalarRoundToInt(r.height()) };
        auto img = SkImages::DeferredFromPicture(
                pic, dim, nullptr, nullptr, SkImages::BitDepth::kU8, SkColorSpace::MakeSRGB());
        return SkImageFilters::Image(img, r, r, sampling);
    }

onDraw()

void PictureImageFilterGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 89 of file pictureimagefilter.cpp.

                                           {
        canvas->clear(SK_ColorGRAY);
        {
            SkRect srcRect = SkRect::MakeXYWH(20, 20, 30, 30);
            SkRect emptyRect = SkRect::MakeXYWH(20, 20, 0, 0);
            SkRect bounds = SkRect::MakeXYWH(0, 0, 100, 100);
            sk_sp<SkImageFilter> pictureSource(SkImageFilters::Picture(fPicture));
            sk_sp<SkImageFilter> pictureSourceSrcRect(SkImageFilters::Picture(fPicture, srcRect));
            sk_sp<SkImageFilter> pictureSourceEmptyRect(SkImageFilters::Picture(fPicture,
                                                                                emptyRect));
            sk_sp<SkImageFilter> pictureSourceResampled = make(SkSamplingOptions(SkFilterMode::kLinear));
            sk_sp<SkImageFilter> pictureSourcePixelated = make(SkSamplingOptions());
 
            canvas->save();
            // Draw the picture unscaled.
            fill_rect_filtered(canvas, bounds, pictureSource);
            canvas->translate(SkIntToScalar(100), 0);
 
            // Draw an unscaled subset of the source picture.
            fill_rect_filtered(canvas, bounds, pictureSourceSrcRect);
            canvas->translate(SkIntToScalar(100), 0);
 
            // Draw the picture to an empty rect (should draw nothing).
            fill_rect_filtered(canvas, bounds, pictureSourceEmptyRect);
            canvas->translate(SkIntToScalar(100), 0);
 
            // Draw the LCD picture to a layer
            {
                SkPaint stroke;
                stroke.setStyle(SkPaint::kStroke_Style);
 
                canvas->drawRect(bounds, stroke);
 
                SkPaint paint;
                paint.setImageFilter(make(fLCDPicture, fPicture->cullRect(), SkSamplingOptions()));
 
                canvas->scale(4, 4);
                canvas->translate(-0.9f*srcRect.fLeft, -2.45f*srcRect.fTop);
 
                canvas->saveLayer(&bounds, &paint);
                canvas->restore();
            }
 
            canvas->restore();
 
            // Draw the picture scaled
            canvas->translate(0, SkIntToScalar(100));
            canvas->scale(200 / srcRect.width(), 200 / srcRect.height());
            canvas->translate(-srcRect.fLeft, -srcRect.fTop);
            fill_rect_filtered(canvas, srcRect, pictureSource);
 
            // Draw the picture scaled, but rasterized at original resolution
            canvas->translate(srcRect.width(), 0);
            fill_rect_filtered(canvas, srcRect, pictureSourceResampled);
 
            // Draw the picture scaled, pixelated
            canvas->translate(srcRect.width(), 0);
            fill_rect_filtered(canvas, srcRect, pictureSourcePixelated);
        }
    }

onOnceBeforeDraw()

void PictureImageFilterGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 74 of file pictureimagefilter.cpp.

                                     {
        fPicture = make_picture();
        fLCDPicture = make_LCD_picture();
    }

---

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

• third_party/skia/gm/pictureimagefilter.cpp