ImageSourceGM Class Reference

Inheritance diagram for ImageSourceGM:

Public Member Functions
	ImageSourceGM ()
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 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
void	onDraw (SkCanvas *canvas) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
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 39 of file imagesource.cpp.

Constructor & Destructor Documentation

ImageSourceGM()

ImageSourceGM::ImageSourceGM ( )

inline

Definition at line 41 of file imagesource.cpp.

{ }

Member Function Documentation

getISize()

SkISize ImageSourceGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 46 of file imagesource.cpp.

{ return SkISize::Make(500, 150); }

getName()

SkString ImageSourceGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 44 of file imagesource.cpp.

{ return SkString("imagesource"); }

onDraw()

void ImageSourceGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 52 of file imagesource.cpp.

                                           {
        canvas->clear(SK_ColorBLACK);
 
        const SkRect srcRect = SkRect::MakeXYWH(20, 20, 30, 30);
        const SkRect dstRect = SkRect::MakeXYWH(0, 10, 60, 60);
        const SkRect clipRect = SkRect::MakeXYWH(0, 0, 100, 100);
        const SkRect bounds = SkRect::MakeIWH(fImage->width(), fImage->height());
        const SkSamplingOptions sampling({1/3.0f, 1/3.0f});
 
        {
            // Draw an unscaled bitmap.
            sk_sp<SkImageFilter> imageSource(SkImageFilters::Image(fImage, SkFilterMode::kNearest));
            fill_rect_filtered(canvas, clipRect, std::move(imageSource));
            canvas->translate(SkIntToScalar(100), 0);
        }
        {
            // Draw an unscaled subset of the source bitmap (srcRect -> srcRect).
            sk_sp<SkImageFilter> imageSourceSrcRect(
                    SkImageFilters::Image(fImage, srcRect, srcRect, sampling));
            fill_rect_filtered(canvas, clipRect, std::move(imageSourceSrcRect));
            canvas->translate(SkIntToScalar(100), 0);
        }
        {
            // Draw a subset of the bitmap scaled to a destination rect (srcRect -> dstRect).
            sk_sp<SkImageFilter> imageSourceSrcRectDstRect(
                    SkImageFilters::Image(fImage, srcRect, dstRect, sampling));
            fill_rect_filtered(canvas, clipRect, std::move(imageSourceSrcRectDstRect));
            canvas->translate(SkIntToScalar(100), 0);
        }
        {
            // Draw the entire bitmap scaled to a destination rect (bounds -> dstRect).
            sk_sp<SkImageFilter> imageSourceDstRectOnly(
                    SkImageFilters::Image(fImage, bounds, dstRect, sampling));
            fill_rect_filtered(canvas, clipRect, std::move(imageSourceDstRectOnly));
            canvas->translate(SkIntToScalar(100), 0);
        }
    }

onOnceBeforeDraw()

void ImageSourceGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 48 of file imagesource.cpp.

                                     {
        fImage = ToolUtils::CreateStringImage(100, 100, 0xFFFFFFFF, 20, 70, 96, "e");
    }

---

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

• third_party/skia/gm/imagesource.cpp