GrMipMapBench Class Reference

Inheritance diagram for GrMipMapBench:

Public Member Functions
	GrMipMapBench (int w, int h)
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

Protected Member Functions
bool	isSuitableFor (Backend backend) override
const char *	onGetName () override
void	onDraw (int loops, SkCanvas *canvas) override
void	onPerCanvasPostDraw (SkCanvas *) 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	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 17 of file GrMipmapBench.cpp.

Constructor & Destructor Documentation

GrMipMapBench()

GrMipMapBench::GrMipMapBench ( int  w, int  h  )

inline

Definition at line 23 of file GrMipmapBench.cpp.

                                : fW(w), fH(h) {
        fName.printf("gr_mipmap_build_%dx%d", w, h);
    }

Member Function Documentation

isSuitableFor()

bool GrMipMapBench::isSuitableFor ( Backend  backend )

inlineoverrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 28 of file GrMipmapBench.cpp.

                                                 {
        return Backend::kGanesh == backend;
    }

onDraw()

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

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 34 of file GrMipmapBench.cpp.

                                                      {
        if (!fSurface) {
            auto context = canvas->recordingContext();
            if (!context) {
                return;
            }
            auto srgb = SkColorSpace::MakeSRGB();
            SkImageInfo info =
                    SkImageInfo::Make(fW, fH, kRGBA_8888_SkColorType, kPremul_SkAlphaType, srgb);
            // We're benching the regeneration of the mip levels not the need to allocate them every
            // frame. Thus we create the surface with mips to begin with.
            fSurface = SkSurfaces::RenderTarget(context,
                                                skgpu::Budgeted::kNo,
                                                info,
                                                /* sampleCount= */ 0,
                                                kBottomLeft_GrSurfaceOrigin,
                                                /* surfaceProps= */ nullptr,
                                                /* shouldCreateWithMips= */ true);
        }
 
        // Clear surface once:
        fSurface->getCanvas()->clear(SK_ColorBLACK);
 
        SkSamplingOptions sampling(SkFilterMode::kLinear,
                                   SkMipmapMode::kLinear);
        SkPaint paint;
        paint.setColor(SK_ColorWHITE);
        for (int i = 0; i < loops; i++) {
            // Touch surface so mips are dirtied
            fSurface->getCanvas()->drawPoint(0, 0, paint);
 
            // Draw reduced version of surface to original canvas, to trigger mip generation
            canvas->save();
            canvas->scale(0.1f, 0.1f);
            canvas->drawImage(fSurface->makeImageSnapshot(), 0, 0, sampling, &paint);
            canvas->restore();
        }
    }

onGetName()

const char * GrMipMapBench::onGetName ( )

inlineoverrideprotectedvirtual

Implements Benchmark.

Definition at line 32 of file GrMipmapBench.cpp.

{ return fName.c_str(); }

onPerCanvasPostDraw()

void GrMipMapBench::onPerCanvasPostDraw ( SkCanvas *  )

inlineoverrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 73 of file GrMipmapBench.cpp.

                                                 {
        fSurface.reset(nullptr);
    }

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

• third_party/skia/bench/GrMipmapBench.cpp