skiagm::TileImageFilterGM Class Reference

Inheritance diagram for skiagm::TileImageFilterGM:

Public Member Functions
	TileImageFilterGM ()
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 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
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
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 35 of file tileimagefilter.cpp.

Constructor & Destructor Documentation

TileImageFilterGM()

skiagm::TileImageFilterGM::TileImageFilterGM ( )

inline

Definition at line 37 of file tileimagefilter.cpp.

                        {
        this->setBGColor(0xFF000000);
    }

Member Function Documentation

getISize()

SkISize skiagm::TileImageFilterGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 44 of file tileimagefilter.cpp.

{ return SkISize::Make(WIDTH, HEIGHT); }

getName()

SkString skiagm::TileImageFilterGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 42 of file tileimagefilter.cpp.

{ return SkString("tileimagefilter"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 52 of file tileimagefilter.cpp.

                                           {
        canvas->clear(SK_ColorBLACK);
        SkPaint red;
        red.setColor(SK_ColorRED);
        red.setStyle(SkPaint::kStroke_Style);
        SkPaint blue;
        blue.setColor(SK_ColorBLUE);
        blue.setStyle(SkPaint::kStroke_Style);
 
        int x = 0, y = 0;
 
        {
            for (size_t i = 0; i < 4; i++) {
                sk_sp<SkImage> image = (i & 0x01) ? fCheckerboard : fBitmap;
                SkRect srcRect = SkRect::MakeXYWH(SkIntToScalar(image->width()/4),
                                                  SkIntToScalar(image->height()/4),
                                                  SkIntToScalar(image->width()/(i+1)),
                                                  SkIntToScalar(image->height()/(i+1)));
                SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(i * 8),
                                                  SkIntToScalar(i * 4),
                                                  SkIntToScalar(image->width() - i * 12),
                                                  SkIntToScalar(image->height()) - i * 12);
                sk_sp<SkImageFilter> tileInput(SkImageFilters::Image(image, SkFilterMode::kLinear));
                sk_sp<SkImageFilter> filter(SkImageFilters::Tile(srcRect, dstRect,
                                                                 std::move(tileInput)));
                canvas->save();
                canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
                SkPaint paint;
                paint.setImageFilter(std::move(filter));
                canvas->drawImage(fBitmap.get(), 0, 0, SkSamplingOptions(), &paint);
                canvas->drawRect(srcRect, red);
                canvas->drawRect(dstRect, blue);
                canvas->restore();
                x += image->width() + MARGIN;
                if (x + image->width() > WIDTH) {
                    x = 0;
                    y += image->height() + MARGIN;
                }
            }
        }
 
        {
            float matrix[20] = { 1, 0, 0, 0, 0,
                                 0, 1, 0, 0, 0,
                                 0, 0, 1, 0, 0,
                                 0, 0, 0, 1, 0 };
 
            SkRect srcRect = SkRect::MakeWH(SkIntToScalar(fBitmap->width()),
                                            SkIntToScalar(fBitmap->height()));
            SkRect dstRect = SkRect::MakeWH(SkIntToScalar(fBitmap->width() * 2),
                                            SkIntToScalar(fBitmap->height() * 2));
            sk_sp<SkImageFilter> tile(SkImageFilters::Tile(srcRect, dstRect, nullptr));
            sk_sp<SkColorFilter> cf(SkColorFilters::Matrix(matrix));
 
            SkPaint paint;
            paint.setImageFilter(SkImageFilters::ColorFilter(std::move(cf), std::move(tile)));
            canvas->save();
            canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
            canvas->clipRect(dstRect);
            canvas->saveLayer(&dstRect, &paint);
            canvas->drawImage(fBitmap.get(), 0, 0);
            canvas->restore();
            canvas->drawRect(srcRect, red);
            canvas->drawRect(dstRect, blue);
            canvas->restore();
        }
 
        // test that the crop rect properly applies to the tile image filter
        {
            canvas->translate(0, SkIntToScalar(100));
 
            SkRect srcRect = SkRect::MakeXYWH(0, 0, 50, 50);
            SkRect dstRect = SkRect::MakeXYWH(0, 0, 100, 100);
            SkIRect cropRect = SkIRect::MakeXYWH(5, 5, 40, 40);
            sk_sp<SkColorFilter> greenCF = SkColorFilters::Blend(SK_ColorGREEN, SkBlendMode::kSrc);
            sk_sp<SkImageFilter> green(SkImageFilters::ColorFilter(std::move(greenCF),
                                                                      nullptr,
                                                                      &cropRect));
            SkPaint paint;
            paint.setColor(SK_ColorRED);
            paint.setImageFilter(SkImageFilters::Tile(srcRect, dstRect, std::move(green)));
            canvas->drawRect(dstRect, paint);
        }
    }

onOnceBeforeDraw()

void skiagm::TileImageFilterGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 46 of file tileimagefilter.cpp.

                                     {
        fBitmap = ToolUtils::CreateStringImage(50, 50, 0xD000D000, 10, 45, 50, "e");
 
        fCheckerboard = ToolUtils::create_checkerboard_image(80, 80, 0xFFA0A0A0, 0xFF404040, 8);
    }

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

• third_party/skia/gm/tileimagefilter.cpp