LatticeGM Class Reference

Inheritance diagram for LatticeGM:

Public Member Functions
	LatticeGM ()
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	onDrawHelper (GrDirectContext *dContext, SkCanvas *canvas, int padLeft, int padTop, int padRight, int padBottom)
DrawResult	onDraw (SkCanvas *canvas, SkString *errorMsg) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onOnceBeforeDraw ()
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

This is similar to NinePatchStretchGM, but it also tests "ninepatch" images with more than nine patches.

Definition at line 94 of file lattice.cpp.

Constructor & Destructor Documentation

LatticeGM()

LatticeGM::LatticeGM ( )

inline

Definition at line 96 of file lattice.cpp.

{}

Member Function Documentation

getISize()

SkISize LatticeGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 101 of file lattice.cpp.

{ return SkISize::Make(800, 800); }

getName()

SkString LatticeGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 99 of file lattice.cpp.

{ return SkString("lattice"); }

onDraw()

DrawResult LatticeGM::onDraw ( SkCanvas *  canvas, SkString *  errorMsg  )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 206 of file lattice.cpp.

                                                                     {
        auto rContext = canvas->recordingContext();
        auto dContext = GrAsDirectContext(rContext);
        if (rContext && !dContext) {
            *errorMsg = "not supported in ddl";
            return DrawResult::kSkip;
        }
        this->onDrawHelper(dContext, canvas, 0, 0, 0, 0);
        canvas->translate(0.0f, 400.0f);
        this->onDrawHelper(dContext, canvas, 3, 7, 4, 11);
        return DrawResult::kOk;
    }

onDrawHelper()

void LatticeGM::onDrawHelper ( GrDirectContext *  dContext, SkCanvas *  canvas, int  padLeft, int  padTop, int  padRight, int  padBottom  )

inlineprotected

Definition at line 103 of file lattice.cpp.

                                                   {
        canvas->save();
 
        int xDivs[5];
        int yDivs[5];
        xDivs[0] = padLeft;
        yDivs[0] = padTop;
 
        SkBitmap bitmap;
        sk_sp<SkImage> image = make_image(canvas, xDivs + 1, yDivs + 1, padLeft, padTop,
                                          padRight, padBottom);
        image_to_bitmap(dContext, image.get(), &bitmap);
 
        const SkSize size[] = {
            {  50,  50, }, // shrink in both axes
            {  50, 200, }, // shrink in X
            { 200,  50, }, // shrink in Y
            { 200, 200, },
        };
 
        canvas->drawImage(image, 10, 10);
 
        SkScalar x = SkIntToScalar(100);
        SkScalar y = SkIntToScalar(100);
 
        SkCanvas::Lattice lattice;
        lattice.fXCount = 4;
        lattice.fXDivs = xDivs + 1;
        lattice.fYCount = 4;
        lattice.fYDivs = yDivs + 1;
        lattice.fRectTypes = nullptr;
        lattice.fColors = nullptr;
 
        SkIRect bounds = SkIRect::MakeLTRB(padLeft, padTop,
                                           image->width() - padRight, image->height() - padBottom);
        lattice.fBounds = (bounds == SkIRect::MakeWH(image->width(), image->height())) ?
                nullptr : &bounds;
 
        for (int iy = 0; iy < 2; ++iy) {
            for (int ix = 0; ix < 2; ++ix) {
                int i = ix * 2 + iy;
                SkRect r = SkRect::MakeXYWH(x + ix * 60, y + iy * 60,
                                            size[i].width(), size[i].height());
                canvas->drawImageLattice(image.get(), lattice, r);
            }
        }
 
        // Provide hints about 3 solid color rects. These colors match
        // what was already in the bitmap.
        int fixedColorX[3] = {2, 4, 1};
        int fixedColorY[3] = {1, 1, 2};
        SkColor fixedColor[3] = {SK_ColorBLACK, SK_ColorBLACK, SK_ColorBLACK};
        const SkImageInfo info = SkImageInfo::Make(1, 1, kBGRA_8888_SkColorType,
                                                   kUnpremul_SkAlphaType);
        for (int rectNum = 0; rectNum < 3; rectNum++) {
            int srcX = xDivs[fixedColorX[rectNum]-1];
            int srcY = yDivs[fixedColorY[rectNum]-1];
            image->readPixels(dContext, info, &fixedColor[rectNum], 4, srcX, srcY);
        }
 
        // Include the degenerate first div.  While normally the first patch is "scalable",
        // this will mean that the first non-degenerate patch is "fixed".
        lattice.fXCount = 5;
        lattice.fXDivs = xDivs;
        lattice.fYCount = 5;
        lattice.fYDivs = yDivs;
 
        // Let's skip a few rects.
        SkCanvas::Lattice::RectType flags[36];
        sk_bzero(flags, 36 * sizeof(SkCanvas::Lattice::RectType));
        flags[4] = SkCanvas::Lattice::kTransparent;
        flags[9] = SkCanvas::Lattice::kTransparent;
        flags[12] = SkCanvas::Lattice::kTransparent;
        flags[19] = SkCanvas::Lattice::kTransparent;
        for (int rectNum = 0; rectNum < 3; rectNum++) {
            flags[fixedColorY[rectNum]*6 + fixedColorX[rectNum]]
                   = SkCanvas::Lattice::kFixedColor;
        }
        lattice.fRectTypes = flags;
 
        SkColor colors[36];
        sk_bzero(colors, 36 * sizeof(SkColor));
        for (int rectNum = 0; rectNum < 3; rectNum++) {
            colors[fixedColorY[rectNum]*6 + fixedColorX[rectNum]]
                   = fixedColor[rectNum];
        }
 
        lattice.fColors = colors;
 
        canvas->translate(400, 0);
        for (int iy = 0; iy < 2; ++iy) {
            for (int ix = 0; ix < 2; ++ix) {
                int i = ix * 2 + iy;
                SkRect r = SkRect::MakeXYWH(x + ix * 60, y + iy * 60,
                                            size[i].width(), size[i].height());
                canvas->drawImageLattice(image.get(), lattice, r);
            }
        }
 
        canvas->restore();
    }

---

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

• third_party/skia/gm/lattice.cpp