skiagm::DrawImageSetRectToRectGM Class Reference

Inheritance diagram for skiagm::DrawImageSetRectToRectGM:

Private Member Functions
SkString	getName () const override
SkISize	getISize () override
void	onOnceBeforeDraw () override
void	onDraw (SkCanvas *canvas) 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 DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Detailed Description

Definition at line 211 of file drawimageset.cpp.

Member Function Documentation

getISize()

SkISize skiagm::DrawImageSetRectToRectGM::getISize ( )

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 214 of file drawimageset.cpp.

{ return {1250, 850}; }

getName()

SkString skiagm::DrawImageSetRectToRectGM::getName ( ) const

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 213 of file drawimageset.cpp.

{ return SkString("draw_image_set_rect_to_rect"); }

onDraw()

void skiagm::DrawImageSetRectToRectGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 221 of file drawimageset.cpp.

                                           {
        ToolUtils::draw_checkerboard(canvas, SK_ColorBLACK, SK_ColorWHITE, 50);
        static constexpr SkScalar kW = kM * kTileW;
        static constexpr SkScalar kH = kN * kTileH;
        SkMatrix matrices[5];
        // Identity
        matrices[0].reset();
        // 90 degree rotation
        matrices[1].setRotate(90, kW / 2.f, kH / 2.f);
        // Scaling
        matrices[2].setScale(2.f, 0.5f);
        // Mirror in x and y
        matrices[3].setScale(-1.f, -1.f);
        matrices[3].postTranslate(kW, kH);
        // Mirror in y, rotate, and scale.
        matrices[4].setScale(1.f, -1.f);
        matrices[4].postTranslate(0, kH);
        matrices[4].postRotate(90, kW / 2.f, kH / 2.f);
        matrices[4].postScale(2.f, 0.5f);
 
        SkPaint paint;
        paint.setBlendMode(SkBlendMode::kSrcOver);
 
        static constexpr SkScalar kTranslate = std::max(kW, kH) * 2.f + 10.f;
        canvas->translate(5.f, 5.f);
        canvas->save();
        for (SkScalar frac : {0.f, 0.5f}) {
            canvas->save();
            canvas->translate(frac, frac);
            for (size_t m = 0; m < std::size(matrices); ++m) {
                canvas->save();
                canvas->concat(matrices[m]);
                canvas->experimental_DrawEdgeAAImageSet(fSet, kM * kN, nullptr, nullptr,
                                                        SkSamplingOptions(SkFilterMode::kLinear),
                                                        &paint, SkCanvas::kFast_SrcRectConstraint);
                canvas->restore();
                canvas->translate(kTranslate, 0);
            }
            canvas->restore();
            canvas->restore();
            canvas->translate(0, kTranslate);
            canvas->save();
        }
        for (SkVector scale : {SkVector{2.f, 0.5f}, SkVector{0.5, 2.f}}) {
            SkCanvas::ImageSetEntry scaledSet[kM * kN];
            std::copy_n(fSet, kM * kN, scaledSet);
            for (int i = 0; i < kM * kN; ++i) {
                scaledSet[i].fDstRect.fLeft *= scale.fX;
                scaledSet[i].fDstRect.fTop *= scale.fY;
                scaledSet[i].fDstRect.fRight *= scale.fX;
                scaledSet[i].fDstRect.fBottom *= scale.fY;
                scaledSet[i].fAlpha = 0 == (i % 3) ? 0.4f : 1.f;
            }
            for (size_t m = 0; m < std::size(matrices); ++m) {
                canvas->save();
                canvas->concat(matrices[m]);
                canvas->experimental_DrawEdgeAAImageSet(scaledSet, kM * kN, nullptr, nullptr,
                                                        SkSamplingOptions(SkFilterMode::kLinear),
                                                        &paint, SkCanvas::kFast_SrcRectConstraint);
                canvas->restore();
                canvas->translate(kTranslate, 0);
            }
            canvas->restore();
            canvas->translate(0, kTranslate);
            canvas->save();
        }
    }

onOnceBeforeDraw()

void skiagm::DrawImageSetRectToRectGM::onOnceBeforeDraw ( )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 215 of file drawimageset.cpp.

                                     {
        static constexpr SkColor kColors[] = {SK_ColorBLUE, SK_ColorWHITE,
                                              SK_ColorRED,  SK_ColorWHITE};
        make_image_tiles(kTileW, kTileH, kM, kN, kColors, fSet);
    }

---

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

• third_party/skia/gm/drawimageset.cpp