HardStopGradientBench_ScaleNumHardStops Class Reference

Inheritance diagram for HardStopGradientBench_ScaleNumHardStops:

Public Member Functions
	HardStopGradientBench_ScaleNumHardStops (int colorCount, int hardStopCount)
const char *	onGetName () override
SkISize	onGetSize () override
void	onPreDraw (SkCanvas *canvas) override
void	onDraw (int loops, SkCanvas *canvas) override
Public Member Functions inherited from Benchmark
	Benchmark ()
const char *	getName ()
const char *	getUniqueName ()
SkISize	getSize ()
virtual bool	isSuitableFor (Backend backend)
virtual void	modifyGrContextOptions (GrContextOptions *)
virtual bool	shouldLoop () const
void	delayedSetup ()
void	perCanvasPreDraw (SkCanvas *)
void	perCanvasPostDraw (SkCanvas *)
void	preDraw (SkCanvas *)
void	postDraw (SkCanvas *)
void	draw (int loops, SkCanvas *)
virtual void	getGpuStats (SkCanvas *, skia_private::TArray< SkString > *keys, skia_private::TArray< double > *values)
virtual bool	getDMSAAStats (GrRecordingContext *)
int	getUnits () const
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Additional Inherited Members
Public Types inherited from Benchmark
enum class	Backend {   kNonRendering , kRaster , kGanesh , kGraphite ,   kPDF , kHWUI }
Protected Member Functions inherited from Benchmark
void	setUnits (int units)
virtual void	setupPaint (SkPaint *paint)
virtual const char *	onGetUniqueName ()
virtual void	onDelayedSetup ()
virtual void	onPerCanvasPreDraw (SkCanvas *)
virtual void	onPerCanvasPostDraw (SkCanvas *)
virtual void	onPostDraw (SkCanvas *)

Detailed Description

Definition at line 20 of file HardStopGradientBench_ScaleNumHardStops.cpp.

Constructor & Destructor Documentation

HardStopGradientBench_ScaleNumHardStops()

HardStopGradientBench_ScaleNumHardStops::HardStopGradientBench_ScaleNumHardStops ( int  colorCount, int  hardStopCount  )

inline

Definition at line 22 of file HardStopGradientBench_ScaleNumHardStops.cpp.

                                                                               {
        SkASSERT(hardStopCount <= colorCount/2);
 
        fName.printf("hardstop_scale_num_hard_stops_%03d_colors_%03d_hard_stops",
                     colorCount, hardStopCount);
 
        fColorCount    = colorCount;
        fHardStopCount = hardStopCount;
    }

Member Function Documentation

onDraw()

void HardStopGradientBench_ScaleNumHardStops::onDraw ( int  loops, SkCanvas *  canvas  )

inlineoverridevirtual

Implements Benchmark.

Definition at line 86 of file HardStopGradientBench_ScaleNumHardStops.cpp.

                                                      {
        for (int i = 0; i < loops; i++) {
            canvas->drawPaint(fPaint);
        }
    }

onGetName()

const char * HardStopGradientBench_ScaleNumHardStops::onGetName ( )

inlineoverridevirtual

Implements Benchmark.

Definition at line 32 of file HardStopGradientBench_ScaleNumHardStops.cpp.

                                     {
        return fName.c_str();
    }

onGetSize()

SkISize HardStopGradientBench_ScaleNumHardStops::onGetSize ( )

inlineoverridevirtual

Reimplemented from Benchmark.

Definition at line 36 of file HardStopGradientBench_ScaleNumHardStops.cpp.

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

onPreDraw()

void HardStopGradientBench_ScaleNumHardStops::onPreDraw ( SkCanvas *  canvas )

inlineoverridevirtual

Reimplemented from Benchmark.

Definition at line 40 of file HardStopGradientBench_ScaleNumHardStops.cpp.

                                              {
        // Left to right
        SkPoint points[2] = {
            SkPoint::Make(0,        kSize/2),
            SkPoint::Make(kSize-1,  kSize/2),
        };
 
        constexpr int kNumColorChoices = 4;
        SkColor color_choices[kNumColorChoices] = {
            SK_ColorRED,
            SK_ColorGREEN,
            SK_ColorBLUE,
            SK_ColorYELLOW,
        };
 
        // Alternate between different choices
        AutoTArray<SkColor> colors(fColorCount);
        for (int i = 0; i < fColorCount; i++) {
            colors[i] = color_choices[i % kNumColorChoices];
        }
 
        // Create requisite number of hard stops, and evenly
        // space positions after that
        AutoTArray<SkScalar> positions(fColorCount);
        int k = 0;
        for (int i = 0; i < fHardStopCount; i++) {
            float val = k/2.0f;
            positions[k++] = val / fColorCount;
            positions[k++] = val / fColorCount;
        }
        for (int i = k; i < fColorCount; i++) {
            positions[i] = i / (fColorCount - 1.0f);
        }
 
        fPaint.setShader(SkGradientShader::MakeLinear(points,
                                                      colors.get(),
                                                      positions.get(),
                                                      fColorCount,
                                                      SkTileMode::kClamp,
                                                      0,
                                                      nullptr));
    }

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

• third_party/skia/bench/HardStopGradientBench_ScaleNumHardStops.cpp