SKPBench Class Reference

#include <SKPBench.h>

Inheritance diagram for SKPBench:

Public Member Functions
	SKPBench (const char *name, const SkPicture *, const SkIRect &devClip, SkScalar scale, bool doLooping)
	~SKPBench () override
bool	shouldLoop () const override
void	getGpuStats (SkCanvas *, skia_private::TArray< SkString > *keys, skia_private::TArray< double > *values) override
bool	getDMSAAStats (GrRecordingContext *) override
Public Member Functions inherited from Benchmark
	Benchmark ()
const char *	getName ()
const char *	getUniqueName ()
SkISize	getSize ()
virtual void	modifyGrContextOptions (GrContextOptions *)
void	delayedSetup ()
void	perCanvasPreDraw (SkCanvas *)
void	perCanvasPostDraw (SkCanvas *)
void	preDraw (SkCanvas *)
void	postDraw (SkCanvas *)
void	draw (int loops, SkCanvas *)
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
const char *	onGetUniqueName () override
void	onPerCanvasPreDraw (SkCanvas *) override
void	onPerCanvasPostDraw (SkCanvas *) override
bool	isSuitableFor (Backend backend) override
void	onDraw (int loops, SkCanvas *canvas) override
SkISize	onGetSize () override
virtual void	drawMPDPicture ()
virtual void	drawPicture ()
const SkPicture *	picture () const
const skia_private::TArray< sk_sp< SkSurface > > &	surfaces () const
const SkTDArray< SkIRect > &	tileRects () const
Protected Member Functions inherited from Benchmark
void	setUnits (int units)
virtual void	setupPaint (SkPaint *paint)
virtual void	onDelayedSetup ()
virtual void	onPreDraw (SkCanvas *)
virtual void	onPostDraw (SkCanvas *)

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

Detailed Description

Runs an SkPicture as a benchmark by repeatedly drawing it scaled inside a device clip.

Definition at line 21 of file SKPBench.h.

Constructor & Destructor Documentation

SKPBench()

SKPBench::SKPBench	(	const char *	name,
		const SkPicture *	pic,
		const SkIRect &	devClip,
		SkScalar	scale,
		bool	doLooping
	)

Definition at line 32 of file SKPBench.cpp.

    : fPic(SkRef(pic))
    , fClip(clip)
    , fScale(scale)
    , fName(name)
    , fDoLooping(doLooping) {
    fUniqueName.printf("%s_%.2g", name, scale);  // Scale makes this unqiue for perf.skia.org traces.
}

~SKPBench()

SKPBench::~SKPBench ( )

override

Definition at line 42 of file SKPBench.cpp.

                    {
    for (int i = 0; i < fSurfaces.size(); ++i) {
        fSurfaces[i]->unref();
    }
}

Member Function Documentation

drawMPDPicture()

void SKPBench::drawMPDPicture ( )

protectedvirtual

Reimplemented in SKPAnimationBench.

Definition at line 153 of file SKPBench.cpp.

                              {
    // TODO: remove me
}

drawPicture()

void SKPBench::drawPicture ( )

protectedvirtual

Reimplemented in SKPAnimationBench.

Definition at line 157 of file SKPBench.cpp.

                           {
    for (int j = 0; j < fTileRects.size(); ++j) {
        const SkMatrix trans = SkMatrix::Translate(-fTileRects[j].fLeft / fScale,
                                                   -fTileRects[j].fTop / fScale);
        fSurfaces[j]->getCanvas()->drawPicture(fPic.get(), &trans, nullptr);
    }
 
    for (int j = 0; j < fTileRects.size(); ++j) {
        skgpu::Flush(fSurfaces[j].get());
    }
}

getDMSAAStats()

bool SKPBench::getDMSAAStats ( GrRecordingContext *  rContext )

overridevirtual

Reimplemented from Benchmark.

Definition at line 200 of file SKPBench.cpp.

                                                         {
    if (!rContext || !rContext->asDirectContext()) {
        return false;
    }
    // Clear the current DMSAA stats then do a single tiled draw that resets them to the specific
    // values for our SKP.
    rContext->asDirectContext()->flushAndSubmit();
    rContext->priv().dmsaaStats() = {};
    this->drawPicture();  // Draw tiled for DMSAA stats.
    rContext->asDirectContext()->flush();
    return true;
}

getGpuStats()

void SKPBench::getGpuStats ( SkCanvas *  canvas, skia_private::TArray< SkString > *  keys, skia_private::TArray< double > *  values  )

overridevirtual

Reimplemented from Benchmark.

Definition at line 184 of file SKPBench.cpp.

                                                                                           {
    // we do a special single draw and then dump the key / value pairs
    auto direct = canvas->recordingContext() ? canvas->recordingContext()->asDirectContext()
                                             : nullptr;
    if (!direct) {
        return;
    }
 
    // TODO refactor this out if we want to test other subclasses of skpbench
    direct->flushAndSubmit();
    direct->freeGpuResources();
    direct->resetContext();
    direct->priv().getGpu()->resetShaderCacheForTesting();
    draw_pic_for_stats(canvas, direct, fPic.get(), keys, values);
}

isSuitableFor()

bool SKPBench::isSuitableFor ( Backend  backend )

overrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 112 of file SKPBench.cpp.

                                            {
    return backend != Backend::kNonRendering;
}

onDraw()

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

overrideprotectedvirtual

Implements Benchmark.

Definition at line 120 of file SKPBench.cpp.

                                                 {
    SkASSERT(fDoLooping || 1 == loops);
    while (1) {
        this->drawPicture();
        if (0 == --loops) {
            break;
        }
 
        // Ensure the gpu backends don't combine ops/tasks across draw loops. Also submit each work
        // to the gpu so we are measuring the cost of gpu submission and not amortizing one
        // submission across all loops.
        auto direct = canvas->recordingContext() ? canvas->recordingContext()->asDirectContext()
                                                 : nullptr;
        if (direct) {
            direct->flushAndSubmit();
        }
 
#if defined(SK_GRAPHITE)
        skgpu::graphite::Recorder* recorder = canvas->recorder();
        if (recorder) {
            std::unique_ptr<skgpu::graphite::Recording> recording = recorder->snap();
            if (recording) {
                skgpu::graphite::InsertRecordingInfo info;
                info.fRecording = recording.get();
                skgpu::graphite::Context* context = recorder->priv().context();
                context->insertRecording(info);
                context->submit();
            }
        }
#endif
    }
}

onGetName()

const char * SKPBench::onGetName ( )

overrideprotectedvirtual

Implements Benchmark.

Definition at line 48 of file SKPBench.cpp.

                                {
    return fName.c_str();
}

onGetSize()

SkISize SKPBench::onGetSize ( )

overrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 116 of file SKPBench.cpp.

                            {
    return SkISize::Make(fClip.width(), fClip.height());
}

onGetUniqueName()

const char * SKPBench::onGetUniqueName ( )

overrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 52 of file SKPBench.cpp.

                                      {
    return fUniqueName.c_str();
}

onPerCanvasPostDraw()

void SKPBench::onPerCanvasPostDraw ( SkCanvas *  canvas )

overrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 99 of file SKPBench.cpp.

                                                   {
    // Draw the last set of tiles into the main canvas in case we're
    // saving the images
    for (int i = 0; i < fTileRects.size(); ++i) {
        sk_sp<SkImage> image(fSurfaces[i]->makeImageSnapshot());
        canvas->drawImage(image,
                          SkIntToScalar(fTileRects[i].fLeft), SkIntToScalar(fTileRects[i].fTop));
    }
 
    fSurfaces.clear();
    fTileRects.clear();
}

onPerCanvasPreDraw()

void SKPBench::onPerCanvasPreDraw ( SkCanvas *  canvas )

overrideprotectedvirtual

Reimplemented from Benchmark.

Definition at line 56 of file SKPBench.cpp.

                                                  {
    SkIRect bounds = canvas->getDeviceClipBounds();
    bounds.intersect(fClip);
    bounds.intersect(fPic->cullRect().roundOut());
    SkAssertResult(!bounds.isEmpty());
 
#if defined(SK_GRAPHITE)
    const bool gpu = canvas->recordingContext() != nullptr || canvas->recorder() != nullptr;
#else
    const bool gpu = canvas->recordingContext() != nullptr;
#endif
    int tileW = gpu ? FLAGS_GPUbenchTileW : FLAGS_CPUbenchTileW,
        tileH = gpu ? FLAGS_GPUbenchTileH : FLAGS_CPUbenchTileH;
 
    tileW = std::min(tileW, bounds.width());
    tileH = std::min(tileH, bounds.height());
 
    int xTiles = SkScalarCeilToInt(bounds.width()  / SkIntToScalar(tileW));
    int yTiles = SkScalarCeilToInt(bounds.height() / SkIntToScalar(tileH));
 
    fSurfaces.reserve_exact(fSurfaces.size() + (xTiles * yTiles));
    fTileRects.reserve(xTiles * yTiles);
 
    SkImageInfo ii = canvas->imageInfo().makeWH(tileW, tileH);
 
    for (int y = bounds.fTop; y < bounds.fBottom; y += tileH) {
        for (int x = bounds.fLeft; x < bounds.fRight; x += tileW) {
            const SkIRect tileRect = SkIRect::MakeXYWH(x, y, tileW, tileH);
            *fTileRects.append() = tileRect;
            fSurfaces.emplace_back(canvas->makeSurface(ii));
 
            // Never want the contents of a tile to include stuff the parent
            // canvas clips out
            SkRect clip = SkRect::Make(bounds);
            clip.offset(-SkIntToScalar(tileRect.fLeft), -SkIntToScalar(tileRect.fTop));
            fSurfaces.back()->getCanvas()->clipRect(clip);
 
            fSurfaces.back()->getCanvas()->setMatrix(canvas->getLocalToDevice());
            fSurfaces.back()->getCanvas()->scale(fScale, fScale);
        }
    }
}

picture()

const SkPicture * SKPBench::picture ( ) const

inlineprotected

Definition at line 48 of file SKPBench.h.

{ return fPic.get(); }

shouldLoop()

bool SKPBench::shouldLoop ( ) const

inlineoverridevirtual

Reimplemented from Benchmark.

Definition at line 27 of file SKPBench.h.

                                     {
        return fDoLooping;
    }

surfaces()

const skia_private::TArray< sk_sp< SkSurface > > & SKPBench::surfaces ( ) const

inlineprotected

Definition at line 49 of file SKPBench.h.

{ return fSurfaces; }

tileRects()

const SkTDArray< SkIRect > & SKPBench::tileRects ( ) const

inlineprotected

Definition at line 50 of file SKPBench.h.

{ return fTileRects; }

---

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

• third_party/skia/bench/SKPBench.h
• third_party/skia/bench/SKPBench.cpp