skiagm::LocalMatrixOrder Class Reference

Inheritance diagram for skiagm::LocalMatrixOrder:

Public Member Functions
	LocalMatrixOrder ()
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
SkString	getName () const override
SkISize	getISize () override
void	onOnceBeforeDraw () override
void	onDraw (SkCanvas *canvas) override
bool	onAnimate (double nanos) 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

Protected Attributes
sk_sp< SkShader >	fShader
float	fAngle = 0.f

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 222 of file localmatrixshader.cpp.

Constructor & Destructor Documentation

LocalMatrixOrder()

skiagm::LocalMatrixOrder::LocalMatrixOrder ( )

inline

Definition at line 224 of file localmatrixshader.cpp.

{}

Member Function Documentation

getISize()

SkISize skiagm::LocalMatrixOrder::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 229 of file localmatrixshader.cpp.

{ return SkISize::Make(500, 500); }

getName()

SkString skiagm::LocalMatrixOrder::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 227 of file localmatrixshader.cpp.

{ return SkString("localmatrix_order"); }

onAnimate()

bool skiagm::LocalMatrixOrder::onAnimate ( double  nanos )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 269 of file localmatrixshader.cpp.

                                          {
        fAngle = TimeUtils::NanosToSeconds(nanos) * 5.f;
        return true;
    }

onDraw()

void skiagm::LocalMatrixOrder::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 252 of file localmatrixshader.cpp.

                                           {
        // Rotate fShader about the canvas center
        auto center = SkRect::Make(canvas->imageInfo().bounds()).center();
 
        // viewer can insert a dpi scaling matrix. Make the animation always rotate about the device
        // center.
        if (auto ictm = canvas->getTotalMatrix(); ictm.invert(&ictm)) {
            center = ictm.mapPoint(center);
        }
 
        auto shader = fShader->makeWithLocalMatrix(SkMatrix::RotateDeg(fAngle, center));
 
        SkPaint paint;
        paint.setShader(shader);
        canvas->drawPaint(paint);
    }

onOnceBeforeDraw()

void skiagm::LocalMatrixOrder::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 231 of file localmatrixshader.cpp.

                                     {
        auto mandrill = ToolUtils::GetResourceAsImage("images/mandrill_256.png");  // 256x256
        auto example5 = ToolUtils::GetResourceAsImage("images/example_5.png");     // 128x128
 
        auto mshader = mandrill->makeShader(
                SkTileMode::kRepeat,
                SkTileMode::kRepeat,
                SkFilterMode::kNearest,
                SkMatrix::RotateDeg(45, {128, 128})); // rotate about center
        auto eshader = example5->makeShader(
                SkTileMode::kRepeat,
                SkTileMode::kRepeat,
                SkFilterMode::kNearest,
                SkMatrix::Scale(2, 2)); // make same size as mandrill and...
        // ... rotate about center
        eshader = eshader->makeWithLocalMatrix(SkMatrix::RotateDeg(45, {128, 128}));
 
        // blend the two rotated and aligned images.
        fShader = SkShaders::Blend(SkBlendMode::kModulate, mshader, eshader);
    }

Member Data Documentation

fAngle

float skiagm::LocalMatrixOrder::fAngle = 0.f

protected

Definition at line 275 of file localmatrixshader.cpp.

fShader

sk_sp<SkShader> skiagm::LocalMatrixOrder::fShader

protected

Definition at line 274 of file localmatrixshader.cpp.

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

• third_party/skia/gm/localmatrixshader.cpp