XfermodesGM Class Reference

Inheritance diagram for XfermodesGM:

Public Member Functions
	XfermodesGM ()
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

Static Public Attributes
static const int	W = 64
static const int	H = 64
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Protected Member Functions
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 DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Private Member Functions
void	onOnceBeforeDraw () override

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

Detailed Description

Definition at line 127 of file xfermodes.cpp.

Constructor & Destructor Documentation

XfermodesGM()

XfermodesGM::XfermodesGM ( )

inline

Definition at line 223 of file xfermodes.cpp.

{}

Member Function Documentation

getISize()

SkISize XfermodesGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 228 of file xfermodes.cpp.

{ return SkISize::Make(1990, 570); }

getName()

SkString XfermodesGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 226 of file xfermodes.cpp.

{ return SkString("xfermodes"); }

onDraw()

void XfermodesGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 230 of file xfermodes.cpp.

                                           {
        canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
 
        const SkScalar w = SkIntToScalar(W);
        const SkScalar h = SkIntToScalar(H);
        SkMatrix m;
        m.setScale(SkIntToScalar(6), SkIntToScalar(6));
        auto s = fBG.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
                                SkSamplingOptions(), m);
 
        SkPaint labelP;
        labelP.setAntiAlias(true);
 
        SkFont font = ToolUtils::DefaultPortableFont();
 
        const int kWrap = 5;
 
        SkScalar x0 = 0;
        SkScalar y0 = 0;
        for (int sourceType = 1; sourceType & kAll_SrcType; sourceType <<= 1) {
            SkScalar x = x0, y = y0;
            for (size_t i = 0; i < std::size(gModes); i++) {
                if ((gModes[i].fSourceTypeMask & sourceType) == 0) {
                    continue;
                }
                SkRect r{ x, y, x+w, y+h };
 
                SkPaint p;
                p.setStyle(SkPaint::kFill_Style);
                p.setShader(s);
                canvas->drawRect(r, p);
 
                canvas->saveLayer(&r, nullptr);
                draw_mode(canvas, gModes[i].fMode, static_cast<SrcType>(sourceType),
                          r.fLeft, r.fTop);
                canvas->restore();
 
                r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
                p.setStyle(SkPaint::kStroke_Style);
                p.setShader(nullptr);
                canvas->drawRect(r, p);
 
#if 1
                const char* label = SkBlendMode_Name(gModes[i].fMode);
                SkTextUtils::DrawString(canvas, label, x + w/2, y - font.getSize()/2,
                                        font, labelP, SkTextUtils::kCenter_Align);
#endif
                x += w + SkIntToScalar(10);
                if ((i % kWrap) == kWrap - 1) {
                    x = x0;
                    y += h + SkIntToScalar(30);
                }
            }
            if (y < 320) {
                if (x > x0) {
                    y += h + SkIntToScalar(30);
                }
                y0 = y;
            } else {
                x0 += SkIntToScalar(400);
                y0 = 0;
            }
        }
    }

onOnceBeforeDraw()

void XfermodesGM::onOnceBeforeDraw ( )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 212 of file xfermodes.cpp.

                                     {
        fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType,
                                            kOpaque_SkAlphaType),
                          gData, 4);
 
        make_bitmaps(W, H, &fSrcB, &fDstB, &fTransparent);
    }

Member Data Documentation

H

const int XfermodesGM::H = 64

static

Definition at line 222 of file xfermodes.cpp.

W

const int XfermodesGM::W = 64

static

Definition at line 221 of file xfermodes.cpp.

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

• third_party/skia/gm/xfermodes.cpp