Sk4fGradientBench Struct Reference

Inheritance diagram for Sk4fGradientBench:

Public Member Functions
const char *	onGetName () override
bool	isSuitableFor (Backend backend) override
void	onDraw (int loops, SkCanvas *) override
Public Member Functions inherited from Benchmark
	Benchmark ()
const char *	getName ()
const char *	getUniqueName ()
SkISize	getSize ()
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

Public Attributes
SkPMColor	fDevice [100]

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	onPreDraw (SkCanvas *)
virtual void	onPostDraw (SkCanvas *)
virtual SkISize	onGetSize ()

Detailed Description

Definition at line 59 of file Sk4fBench.cpp.

Member Function Documentation

isSuitableFor()

bool Sk4fGradientBench::isSuitableFor ( Backend  backend )

inlineoverridevirtual

Reimplemented from Benchmark.

Definition at line 61 of file Sk4fBench.cpp.

{ return backend == Backend::kNonRendering; }

onDraw()

void Sk4fGradientBench::onDraw ( int  loops, SkCanvas *    )

inlineoverridevirtual

Implements Benchmark.

Definition at line 64 of file Sk4fBench.cpp.

                                               {
        skvx::float4 c0(0,0,255,255),
                     c1(255,0,0,255),
                     dc = c1 - c0,
                     fx(0.1f),
                     dx(0.002f),
                     dcdx(dc*dx),
                     dcdx4(dcdx+dcdx+dcdx+dcdx);
 
        for (int n = 0; n < loops; n++) {
            auto a = c0 + dc*fx + 0.5f,  // add an extra 0.5f to get rounding for free.
                 b = a + dcdx,
                 c = b + dcdx,
                 d = c + dcdx;
            for (size_t i = 0; i < std::size(fDevice); i += 4) {
                skvx::cast<uint8_t>(a).store(fDevice + i + 0);
                skvx::cast<uint8_t>(b).store(fDevice + i + 1);
                skvx::cast<uint8_t>(c).store(fDevice + i + 2);
                skvx::cast<uint8_t>(d).store(fDevice + i + 3);
                a = a + dcdx4;
                b = b + dcdx4;
                c = c + dcdx4;
                d = d + dcdx4;
            }
        }
    }

onGetName()

const char * Sk4fGradientBench::onGetName ( )

inlineoverridevirtual

Implements Benchmark.

Definition at line 60 of file Sk4fBench.cpp.

{ return "Sk4f_gradient"; }

Member Data Documentation

fDevice

SkPMColor Sk4fGradientBench::fDevice[100]

Definition at line 63 of file Sk4fBench.cpp.

---

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

• third_party/skia/bench/Sk4fBench.cpp