PremulAndUnpremulAlphaOpsBench Class Reference

Inheritance diagram for PremulAndUnpremulAlphaOpsBench:

Public Member Functions
	PremulAndUnpremulAlphaOpsBench (SkColorType ct)
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	onDelayedSetup () 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	onPerCanvasPreDraw (SkCanvas *)
virtual void	onPerCanvasPostDraw (SkCanvas *)
virtual void	onPreDraw (SkCanvas *)
virtual void	onPostDraw (SkCanvas *)
virtual SkISize	onGetSize ()

Additional Inherited Members
Public Types inherited from Benchmark
enum class	Backend {   kNonRendering , kRaster , kGanesh , kGraphite ,   kPDF , kHWUI }

Detailed Description

Definition at line 14 of file PremulAndUnpremulAlphaOpsBench.cpp.

Constructor & Destructor Documentation

PremulAndUnpremulAlphaOpsBench()

PremulAndUnpremulAlphaOpsBench::PremulAndUnpremulAlphaOpsBench ( SkColorType  ct )

inline

Definition at line 22 of file PremulAndUnpremulAlphaOpsBench.cpp.

                                                   {
        fColorType = ct;
        fName.printf("premul_and_unpremul_alpha_%s", ToolUtils::colortype_name(ct));
    }

Member Function Documentation

onDelayedSetup()

void PremulAndUnpremulAlphaOpsBench::onDelayedSetup ( )

inlineoverrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 32 of file PremulAndUnpremulAlphaOpsBench.cpp.

                                   {
        SkImageInfo info = SkImageInfo::Make(W, H, fColorType, kUnpremul_SkAlphaType);
        fBmp1.allocPixels(info);   // used in writePixels
 
        for (int h = 0; h < H; ++h) {
            for (int w = 0; w < W; ++w) {
                // SkColor places A in the right slot for either RGBA or BGRA
                *fBmp1.getAddr32(w, h) = SkColorSetARGB(h & 0xFF, w & 0xFF, w & 0xFF, w & 0xFF);
            }
        }
 
        fBmp2.allocPixels(info);    // used in readPixels()
    }

onDraw()

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

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 46 of file PremulAndUnpremulAlphaOpsBench.cpp.

                                                      {
        canvas->clear(SK_ColorBLACK);
 
        for (int loop = 0; loop < loops; ++loop) {
            // Unpremul -> Premul
            canvas->writePixels(fBmp1.info(), fBmp1.getPixels(), fBmp1.rowBytes(), 0, 0);
            // Premul -> Unpremul
            canvas->readPixels(fBmp2.info(), fBmp2.getPixels(), fBmp2.rowBytes(), 0, 0);
        }
    }

onGetName()

const char * PremulAndUnpremulAlphaOpsBench::onGetName ( )

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 28 of file PremulAndUnpremulAlphaOpsBench.cpp.

                                     {
        return fName.c_str();
    }

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

• third_party/skia/bench/PremulAndUnpremulAlphaOpsBench.cpp