skiagm::BitmapShaderGM Class Reference

Inheritance diagram for skiagm::BitmapShaderGM:

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
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
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 49 of file bitmapshader.cpp.

Member Function Documentation

getISize()

SkISize skiagm::BitmapShaderGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 60 of file bitmapshader.cpp.

{ return SkISize::Make(150, 100); }

getName()

SkString skiagm::BitmapShaderGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 58 of file bitmapshader.cpp.

{ return SkString("bitmapshaders"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 62 of file bitmapshader.cpp.

                                           {
        SkPaint paint;
 
        for (int i = 0; i < 2; i++) {
            SkMatrix s;
            s.reset();
            if (1 == i) {
                s.setScale(1.5f, 1.5f);
                s.postTranslate(2, 2);
            }
 
            canvas->save();
            paint.setShader(fImage->makeShader(SkSamplingOptions(), s));
 
            // draw the shader with a bitmap mask
            canvas->drawImage(fMask, 0, 0,  SkSamplingOptions(), &paint);
            // no blue circle expected (the bitmap shader's coordinates are aligned to CTM still)
            canvas->drawImage(fMask, 30, 0, SkSamplingOptions(), &paint);
 
            canvas->translate(0, 25);
 
            canvas->drawCircle(10, 10, 10, paint);
            canvas->drawCircle(40, 10, 10, paint); // no blue circle expected
 
            canvas->translate(0, 25);
 
            // clear the shader, colorized by a solid color with a bitmap mask
            paint.setShader(nullptr);
            paint.setColor(SK_ColorGREEN);
            canvas->drawImage(fMask, 0, 0,  SkSamplingOptions(), &paint);
            canvas->drawImage(fMask, 30, 0, SkSamplingOptions(), &paint);
 
            canvas->translate(0, 25);
 
            paint.setShader(fMask->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
                                              SkSamplingOptions(), s));
            paint.setColor(SK_ColorRED);
 
            // draw the mask using the shader and a color
            canvas->drawRect(SkRect::MakeXYWH(0, 0, 20, 20), paint);
            canvas->drawRect(SkRect::MakeXYWH(30, 0, 20, 20), paint);
            canvas->restore();
            canvas->translate(60, 0);
        }
    }

onOnceBeforeDraw()

void skiagm::BitmapShaderGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 52 of file bitmapshader.cpp.

                                     {
        this->setBGColor(SK_ColorGRAY);
        fImage = draw_bm();
        fMask = draw_mask();
    }

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

• third_party/skia/gm/bitmapshader.cpp