CrBug224618GM Class Reference

Inheritance diagram for CrBug224618GM:

Public Member Functions
	CrBug224618GM ()
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
bool	onAnimate (double nanos) 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	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 18 of file crbug_224618.cpp.

Constructor & Destructor Documentation

CrBug224618GM()

CrBug224618GM::CrBug224618GM ( )

inline

Definition at line 20 of file crbug_224618.cpp.

: fTime(0.f) {}

Member Function Documentation

getISize()

SkISize CrBug224618GM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 25 of file crbug_224618.cpp.

{ return SkISize::Make(kMaxVW, kMaxVW); }

getName()

SkString CrBug224618GM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 23 of file crbug_224618.cpp.

{ return SkString("crbug_224618"); }

onAnimate()

bool CrBug224618GM::onAnimate ( double  nanos )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 29 of file crbug_224618.cpp.

                                          {
        fTime = TimeUtils::Scaled(1e-9f * nanos, 0.5f);
        return true;
    }

onDraw()

void CrBug224618GM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 49 of file crbug_224618.cpp.

                                           {
        SkScalar viewportWidth = SkScalarMod(fTime, 10.f) / 10.f * (kMaxVW - kMinVW) + kMinVW;
        SkScalar radius = viewportWidth / 2.f; // round?
        // See https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/perspective
        SkM44 proj{1.f, 0.f, 0.f, 0.f,
                   0.f, 1.f, 0.f, 0.f,
                   0.f, 0.f, 1.f, 0.f,
                   0.f, 0.f, -1.f / radius, 1.f};
        SkM44 zoom             = SkM44::Translate(0.f, 0.f, radius);
        SkM44 postZoom         = SkM44::Translate(0.f, 0.f, -radius - 1.f);
        SkM44 rotateHorizontal = SkM44::Rotate({0, 1, 0}, 2.356194490192345f);
 
        // w in degrees will need to be converted to radians
        SkV4 axisAngles[6] = {
            {0.f, 1.f, 0.f, -90.f}, // rotateY(-90deg)
            {1.f, 0.f, 0.f, 0.f},   // <none>
            {0.f, 1.f, 0.f, 90.f},  // rotateY(90deg)
            {0.f, 1.f, 0.f, 180.f}, // rotateY(180deg)
            {1.f, 0.f, 0.f, -90.f}, // rotateX(-90deg)
            {1.f, 0.f, 0.f, 90.f},  // rotateX(90deg)
        };
        SkColor faceColors[6] = {
            SK_ColorRED,
            SK_ColorGREEN,
            SK_ColorBLUE,
            SK_ColorYELLOW,
            SkColorSetARGB(0xFF, 0xFF, 0xA5, 0x00), // orange css
            SkColorSetARGB(0xFF, 0x80, 0x00, 0x80)  // purple css
        };
 
        for (int i = 0; i < 6; ++i) {
            SkM44 model = SkM44::Rotate({axisAngles[i].x, axisAngles[i].y, axisAngles[i].z},
                                            SkDegreesToRadians(axisAngles[i].w));
            model = SkM44::Translate(radius, radius) * proj *    // project and place content
                    zoom * rotateHorizontal * model * postZoom * // main model matrix
                    SkM44::Translate(-radius, -radius);          // center content
 
            canvas->save();
            canvas->concat(model);
 
            SkPaint fillPaint;
            fillPaint.setAntiAlias(true);
            fillPaint.setColor(faceColors[i]);
 
            // Leverages FillRectOp on GPU backend
            canvas->drawRect(SkRect::MakeWH(viewportWidth, viewportWidth), fillPaint);
 
            // Leverages TextureOp on GPU backend, to ensure sure both quad paths handle clipping
            canvas->drawImageRect(fCubeImage.get(),
                                  SkRect::MakeWH(fCubeImage->width(), fCubeImage->height()),
                                  SkRect::MakeWH(viewportWidth, viewportWidth),
                                  SkSamplingOptions(SkFilterMode::kLinear), &fillPaint,
                                  SkCanvas::kFast_SrcRectConstraint);
 
            canvas->restore();
        }
    }

onOnceBeforeDraw()

void CrBug224618GM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 34 of file crbug_224618.cpp.

                                     {
        static const SkColor kColors[2] = {SK_ColorTRANSPARENT, SkColorSetARGB(128, 255, 255, 255)};
        sk_sp<SkShader> gradient = SkGradientShader::MakeRadial(
                {200.f, 200.f}, 25.f, kColors, nullptr, 2, SkTileMode::kMirror,
                SkGradientShader::kInterpolateColorsInPremul_Flag, nullptr);
 
        sk_sp<SkSurface> surface = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(400, 400));
 
        SkPaint bgPaint;
        bgPaint.setShader(gradient);
        surface->getCanvas()->drawPaint(bgPaint);
 
        fCubeImage = surface->makeImageSnapshot();
    }

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

• third_party/skia/gm/crbug_224618.cpp