ShowMipLevels3 Class Reference

Inheritance diagram for ShowMipLevels3:

Private Member Functions
SkString	getName () const override
SkISize	getISize () override
void	onOnceBeforeDraw () override
DrawResult	onDraw (SkCanvas *canvas, SkString *) override

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
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
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onDraw (SkCanvas *)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Detailed Description

Definition at line 31 of file showmiplevels.cpp.

Member Function Documentation

getISize()

SkISize ShowMipLevels3::getISize ( )

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 36 of file showmiplevels.cpp.

{ return {1130, 970}; }

getName()

SkString ShowMipLevels3::getName ( ) const

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 34 of file showmiplevels.cpp.

{ return SkString("showmiplevels_explicit"); }

onDraw()

DrawResult ShowMipLevels3::onDraw ( SkCanvas *  canvas, SkString *    )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 52 of file showmiplevels.cpp.

                                                            {
        canvas->drawColor(0xFFDDDDDD);
 
        canvas->translate(10, 10);
        for (auto mm : {SkMipmapMode::kNone, SkMipmapMode::kNearest, SkMipmapMode::kLinear}) {
            for (auto fm : {SkFilterMode::kNearest, SkFilterMode::kLinear}) {
                canvas->translate(0, draw_downscaling(canvas, {fm, mm}));
            }
        }
        return DrawResult::kOk;
    }

onOnceBeforeDraw()

void ShowMipLevels3::onOnceBeforeDraw ( )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 38 of file showmiplevels.cpp.

                                     {
        fImg = ToolUtils::GetResourceAsImage("images/ship.png");
        fImg = fImg->makeRasterImage(); // makeWithMips only works on raster for now
 
        const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
 
        SkMipmapBuilder builder(fImg->imageInfo());
        for (int i = 0; i < builder.countLevels(); ++i) {
            auto surf = SkSurfaces::WrapPixels(builder.level(i));
            surf->getCanvas()->drawColor(colors[i % std::size(colors)]);
        }
        fImg = builder.attachTo(fImg);
    }

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

• third_party/skia/gm/showmiplevels.cpp