skiagm::RRectGM Class Reference

Inheritance diagram for skiagm::RRectGM:

Public Types
enum	Type {   kBW_Draw_Type , kAA_Draw_Type , kBW_Clip_Type , kAA_Clip_Type ,   kEffect_Type }
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
	RRectGM (Type type)
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
void	onOnceBeforeDraw () override
SkString	getName () const override
SkISize	getISize () override
DrawResult	onDraw (SkCanvas *canvas, SkString *errorMsg) override
void	setUpRRects ()
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

Additional Inherited Members
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 40 of file rrects.cpp.

Member Enumeration Documentation

Type

enum skiagm::RRectGM::Type

Enumerator
kBW_Draw_Type
kAA_Draw_Type
kBW_Clip_Type
kAA_Clip_Type
kEffect_Type

Definition at line 42 of file rrects.cpp.

              {
        kBW_Draw_Type,
        kAA_Draw_Type,
        kBW_Clip_Type,
        kAA_Clip_Type,
        kEffect_Type,
    };

Constructor & Destructor Documentation

RRectGM()

skiagm::RRectGM::RRectGM ( Type  type )

inline

Definition at line 49 of file rrects.cpp.

: fType(type) { }

Member Function Documentation

getISize()

SkISize skiagm::RRectGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 80 of file rrects.cpp.

{ return SkISize::Make(kImageWidth, kImageHeight); }

getName()

SkString skiagm::RRectGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 58 of file rrects.cpp.

                                      {
        SkString name("rrect");
        switch (fType) {
            case kBW_Draw_Type:
                name.append("_draw_bw");
                break;
            case kAA_Draw_Type:
                name.append("_draw_aa");
                break;
            case kBW_Clip_Type:
                name.append("_clip_bw");
                break;
            case kAA_Clip_Type:
                name.append("_clip_aa");
                break;
            case kEffect_Type:
                name.append("_effect");
                break;
        }
        return name;
    }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 82 of file rrects.cpp.

                                                                     {
        auto sdc = skgpu::ganesh::TopDeviceSurfaceDrawContext(canvas);
 
        auto rContext = canvas->recordingContext();
        if (kEffect_Type == fType && (!sdc || !rContext)) {
            *errorMsg = kErrorMsg_DrawSkippedGpuOnly;
            return DrawResult::kSkip;
        }
 
        SkPaint paint;
        if (kAA_Draw_Type == fType) {
            paint.setAntiAlias(true);
        }
 
        if (fType == kBW_Clip_Type || fType == kAA_Clip_Type) {
            // Add a gradient to the paint to ensure local coords are respected.
            SkPoint pts[3] = {{0, 0}, {1.5f, 1}};
            SkColor colors[3] = {SK_ColorBLACK, SK_ColorYELLOW};
            paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
                                                         SkTileMode::kClamp));
        }
 
#ifdef SK_DEBUG
        const SkRect kMaxImageBound = SkRect::MakeWH(SkIntToScalar(kImageWidth),
                                                     SkIntToScalar(kImageHeight));
#endif
 
        int lastEdgeType = (kEffect_Type == fType) ? (int) GrClipEdgeType::kLast: 0;
 
        int y = 1;
        for (int et = 0; et <= lastEdgeType; ++et) {
            int x = 1;
            for (int curRRect = 0; curRRect < kNumRRects; ++curRRect) {
                bool drew = true;
#ifdef SK_DEBUG
                if (curRRect != kNumRRects - 1) { // skip last rrect, which is large but clipped
                    SkRect imageSpaceBounds = fRRects[curRRect].getBounds();
                    imageSpaceBounds.offset(SkIntToScalar(x), SkIntToScalar(y));
                    SkASSERT(kMaxImageBound.contains(imageSpaceBounds));
                }
#endif
                canvas->save();
                    canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
 
                    SkRRect rrect = fRRects[curRRect];
                    if (curRRect == kNumRRects - 1) {
                        canvas->clipRect({0, 0, kTileX - 2, kTileY - 2});
                        canvas->translate(-0.14f * rrect.rect().width(),
                                          -0.14f * rrect.rect().height());
                    }
                    if (kEffect_Type == fType) {
                        fRRects[curRRect].transform(canvas->getLocalToDeviceAs3x3(), &rrect);
 
                        GrClipEdgeType edgeType = (GrClipEdgeType) et;
                        const auto& caps = *rContext->priv().caps()->shaderCaps();
                        auto [success, fp] = GrRRectEffect::Make(/*inputFP=*/nullptr,
                                                                 edgeType, rrect, caps);
                        if (success) {
                            GrPaint grPaint;
                            grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
                            grPaint.setCoverageFragmentProcessor(std::move(fp));
                            grPaint.setColor4f({ 0, 0, 0, 1.f });
 
                            SkRect bounds = rrect.getBounds();
                            bounds.intersect(SkRect::MakeXYWH(x, y, kTileX - 2, kTileY - 2));
                            if (et >= (int) GrClipEdgeType::kInverseFillBW) {
                                bounds.outset(2.f, 2.f);
                            }
 
                            sdc->addDrawOp(skgpu::ganesh::FillRectOp::MakeNonAARect(
                                    rContext, std::move(grPaint), SkMatrix::I(), bounds));
                        } else {
                            drew = false;
                        }
                    } else if (fType == kBW_Clip_Type || fType == kAA_Clip_Type) {
                        bool aaClip = (kAA_Clip_Type == fType);
                        canvas->clipRRect(rrect, aaClip);
                        canvas->setMatrix(SkMatrix::Scale(kImageWidth, kImageHeight));
                        canvas->drawRect(SkRect::MakeWH(1, 1), paint);
                    } else {
                        canvas->drawRRect(rrect, paint);
                    }
 
                canvas->restore();
                if (drew) {
                    x = x + kTileX;
                    if (x > kImageWidth) {
                        x = 1;
                        y += kTileY;
                    }
                }
            }
            if (x != 1) {
                y += kTileY;
            }
        }
        return DrawResult::kOk;
    }

onOnceBeforeDraw()

void skiagm::RRectGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 53 of file rrects.cpp.

                                     {
        this->setBGColor(0xFFDDDDDD);
        this->setUpRRects();
    }

setUpRRects()

void skiagm::RRectGM::setUpRRects ( )

inlineprotected

Definition at line 181 of file rrects.cpp.

                       {
        // each RRect must fit in a 0x0 -> (kTileX-2)x(kTileY-2) block. These will be tiled across
        // the screen in kTileX x kTileY tiles. The extra empty pixels on each side are for AA.
 
        // simple cases
        fRRects[0].setRect(SkRect::MakeWH(kTileX-2, kTileY-2));
        fRRects[1].setOval(SkRect::MakeWH(kTileX-2, kTileY-2));
        fRRects[2].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 10);
        fRRects[3].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 5);
        // small circular corners are an interesting test case for gpu clipping
        fRRects[4].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 1, 1);
        fRRects[5].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.5f, 0.5f);
        fRRects[6].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.2f, 0.2f);
 
        // The first complex case needs special handling since it is a square
        fRRects[kNumSimpleCases].setRectRadii(SkRect::MakeWH(kTileY-2, kTileY-2), gRadii[0]);
        for (size_t i = 1; i < std::size(gRadii); ++i) {
            fRRects[kNumSimpleCases+i].setRectRadii(SkRect::MakeWH(kTileX-2, kTileY-2), gRadii[i]);
        }
        // The last case is larger than kTileX-2 x kTileY-2 but will be drawn at an offset
        // into a clip rect that respects the tile size and highlights the rrect's corner curve.
        fRRects[kNumRRects - 1].setRectXY({9.f, 9.f, 1699.f, 1699.f}, 843.749f, 843.75f);
    }

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

• third_party/skia/gm/rrects.cpp