PictureShaderGM Class Reference

Inheritance diagram for PictureShaderGM:

Public Member Functions
	PictureShaderGM (SkScalar tileSize, SkScalar sceneSize, bool useLocalMatrixWrapper=false, float alpha=1)
Public Member Functions inherited from skiagm::GM
	GM (SkColor backgroundColor=SK_ColorWHITE)
virtual	~GM ()
void	setMode (Mode mode)
Mode	getMode () const
DrawResult	gpuSetup (SkCanvas *, SkString *errorMsg, GraphiteTestContext *=nullptr)
void	gpuTeardown ()
void	onceBeforeDraw ()
DrawResult	draw (SkCanvas *canvas)
DrawResult	draw (SkCanvas *, SkString *errorMsg)
void	drawBackground (SkCanvas *)
DrawResult	drawContent (SkCanvas *canvas)
DrawResult	drawContent (SkCanvas *, SkString *errorMsg)
virtual SkISize	getISize ()=0
virtual SkString	getName () const =0
virtual bool	runAsBench () const
SkScalar	width ()
SkScalar	height ()
SkColor	getBGColor () const
void	setBGColor (SkColor)
void	drawSizeBounds (SkCanvas *, SkColor)
bool	animate (double)
virtual bool	onChar (SkUnichar)
bool	getControls (SkMetaData *controls)
void	setControls (const SkMetaData &controls)
virtual void	modifyGrContextOptions (GrContextOptions *)
virtual void	modifyGraphiteContextOptions (skgpu::graphite::ContextOptions *) const
virtual bool	isBazelOnly () const
virtual std::map< std::string, std::string >	getGoldKeys () const

Protected Member Functions
void	onOnceBeforeDraw () override
SkString	getName () const override
SkISize	getISize () override
void	onDraw (SkCanvas *canvas) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onOnceBeforeDraw ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual void	onDraw (SkCanvas *)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Additional Inherited Members
Public Types inherited from skiagm::GM
enum	Mode { kGM_Mode , kSample_Mode , kBench_Mode }
using	DrawResult = skiagm::DrawResult
using	GraphiteTestContext = skiatest::graphite::GraphiteTestContext
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 38 of file pictureshader.cpp.

Constructor & Destructor Documentation

PictureShaderGM()

PictureShaderGM::PictureShaderGM ( SkScalar  tileSize, SkScalar  sceneSize, bool  useLocalMatrixWrapper = false, float  alpha = 1  )

inline

Definition at line 40 of file pictureshader.cpp.

        : fTileSize(tileSize)
        , fSceneSize(sceneSize)
        , fAlpha(alpha)
        , fUseLocalMatrixWrapper(useLocalMatrixWrapper)
    {}

Member Function Documentation

getISize()

SkISize PictureShaderGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 69 of file pictureshader.cpp.

{ return SkISize::Make(1400, 1450); }

getName()

SkString PictureShaderGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 63 of file pictureshader.cpp.

                                      {
        return SkStringPrintf("pictureshader%s%s",
                              fUseLocalMatrixWrapper ? "_localwrapper" : "",
                              fAlpha < 1 ? "_alpha" : "");
    }

onDraw()

void PictureShaderGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 71 of file pictureshader.cpp.

                                           {
        this->drawSceneColumn(canvas, SkPoint::Make(0, 0), 1, 1, 0);
        this->drawSceneColumn(canvas, SkPoint::Make(0, fSceneSize * 6.4f), 1, 2, 0);
        this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 2.4f, 0), 1, 1, 1);
        this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 2.4f, fSceneSize * 6.4f), 1, 1, 2);
        this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 4.8f, 0), 2, 1, 0);
        this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 9.6f, 0), 2, 2, 0);
 
        // One last custom row to exercise negative scaling
        SkMatrix ctm, localMatrix;
        ctm.setTranslate(fSceneSize * 2.1f, fSceneSize * 13.8f);
        ctm.preScale(-1, -1);
        localMatrix.setScale(2, 2);
        this->drawScene(canvas, ctm, localMatrix, 0);
 
        ctm.setTranslate(fSceneSize * 2.4f, fSceneSize * 12.8f);
        localMatrix.setScale(-1, -1);
        this->drawScene(canvas, ctm, localMatrix, 0);
 
        ctm.setTranslate(fSceneSize * 4.8f, fSceneSize * 12.3f);
        ctm.preScale(2, 2);
        this->drawScene(canvas, ctm, localMatrix, 0);
 
        ctm.setTranslate(fSceneSize * 13.8f, fSceneSize * 14.3f);
        ctm.preScale(-2, -2);
        localMatrix.setTranslate(fTileSize / 4, fTileSize / 4);
        localMatrix.preRotate(45);
        localMatrix.preScale(-2, -2);
        this->drawScene(canvas, ctm, localMatrix, 0);
    }

onOnceBeforeDraw()

void PictureShaderGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 49 of file pictureshader.cpp.

                                     {
       // Build the picture.
        SkPictureRecorder recorder;
        SkCanvas* pictureCanvas = recorder.beginRecording(fTileSize, fTileSize);
        this->drawTile(pictureCanvas);
        fPicture = recorder.finishRecordingAsPicture();
 
        // Build a reference bitmap.
        fBitmap.allocN32Pixels(SkScalarCeilToInt(fTileSize), SkScalarCeilToInt(fTileSize));
        fBitmap.eraseColor(SK_ColorTRANSPARENT);
        SkCanvas bitmapCanvas(fBitmap);
        this->drawTile(&bitmapCanvas);
    }

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

• third_party/skia/gm/pictureshader.cpp