ClearBench Class Reference

Inheritance diagram for ClearBench:

Public Types
enum	ClearType { kFull_ClearType , kPartial_ClearType , kComplex_ClearType }
Public Types inherited from Benchmark
enum class	Backend {   kNonRendering , kRaster , kGanesh , kGraphite ,   kPDF , kHWUI }

Public Member Functions
	ClearBench (ClearType type)
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

Protected Member Functions
const char *	onGetName () override
void	onDraw (int loops, SkCanvas *canvas) override
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	onPreDraw (SkCanvas *)
virtual void	onPostDraw (SkCanvas *)
virtual SkISize	onGetSize ()

Detailed Description

Definition at line 30 of file ClearBench.cpp.

Member Enumeration Documentation

ClearType

enum ClearBench::ClearType

Enumerator
kFull_ClearType
kPartial_ClearType
kComplex_ClearType

Definition at line 32 of file ClearBench.cpp.

                   {
        kFull_ClearType,
        kPartial_ClearType,
        kComplex_ClearType
    };

Constructor & Destructor Documentation

ClearBench()

ClearBench::ClearBench ( ClearType  type )

inline

Definition at line 38 of file ClearBench.cpp.

: fType(type) {}

Member Function Documentation

onDraw()

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

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 54 of file ClearBench.cpp.

                                                      {
        static const SkRect kPartialClip = SkRect::MakeLTRB(50, 50, 400, 400);
        static const SkRRect kComplexClip = SkRRect::MakeRectXY(kPartialClip, 15, 15);
        // Small to limit fill cost, but intersects the clips to confound batching
        static const SkRect kInterruptRect = SkRect::MakeXYWH(200, 200, 3, 3);
 
        // For the draw that sits between consecutive clears, use a shader that is simple but
        // requires local coordinates so that Ganesh does not convert it into a solid color rect,
        // which could then turn into a scissored-clear behind the scenes.
        SkPaint interruptPaint;
        interruptPaint.setShader(make_shader());
 
        auto sdc = skgpu::ganesh::TopDeviceSurfaceDrawContext(canvas);
        if (sdc) {
            // Tell the skgpu::ganesh::SurfaceDrawContext to not reset its draw op list on a
            // fullscreen clear.
            // If we don't do this, fullscreen clear ops would be created and constantly discard the
            // previous iteration's op so execution would only invoke one actual clear on the GPU
            // (not what we want to measure).
            sdc->testingOnly_SetPreserveOpsOnFullClear();
        }
 
        for (int i = 0; i < loops; i++) {
            canvas->save();
            switch(fType) {
                case kPartial_ClearType:
                    canvas->clipRect(kPartialClip);
                    break;
                case kComplex_ClearType:
                    canvas->clipRRect(kComplexClip);
                    break;
                case kFull_ClearType:
                    // Don't add any extra clipping, since it defaults to the entire "device"
                    break;
            }
 
            // The clear we care about measuring
            canvas->clear(SK_ColorBLUE);
            canvas->restore();
 
            // Perform as minimal a draw as possible that intersects with the clear region in
            // order to prevent the clear ops from being batched together.
            canvas->drawRect(kInterruptRect, interruptPaint);
        }
    }

onGetName()

const char * ClearBench::onGetName ( )

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 41 of file ClearBench.cpp.

                                     {
        switch(fType) {
        case kFull_ClearType:
            return "Clear-Full";
        case kPartial_ClearType:
            return "Clear-Partial";
        case kComplex_ClearType:
            return "Clear-Complex";
        }
        SkASSERT(false);
        return "Unreachable";
    }

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

• third_party/skia/bench/ClearBench.cpp