skiagm::PerspImages Class Reference

Inheritance diagram for skiagm::PerspImages:

Public Member Functions
	PerspImages ()=default
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 39 of file perspimages.cpp.

Constructor & Destructor Documentation

PerspImages()

skiagm::PerspImages::PerspImages ( )

default

Member Function Documentation

getISize()

SkISize skiagm::PerspImages::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 46 of file perspimages.cpp.

{ return SkISize::Make(1150, 1280); }

getName()

SkString skiagm::PerspImages::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 44 of file perspimages.cpp.

{ return SkString("persp_images"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 53 of file perspimages.cpp.

                                           {
        SkTDArray<SkMatrix> matrices;
        matrices.append()->setAll(1.f, 0.f,    0.f,
                                0.f, 1.f,    0.f,
                                0.f, 0.005f, 1.f);
        matrices.append()->setAll(1.f,     0.f,    0.f,
                                0.f,     1.f,    0.f,
                                0.007f, -0.005f, 1.f);
        matrices[1].preSkew(0.2f, -0.1f);
        matrices[1].preRotate(-65.f);
        matrices[1].preScale(1.2f, .8f);
        matrices[1].postTranslate(0.f, 60.f);
        SkPaint paint;
        int n = 0;
        SkRect bounds = SkRect::MakeEmpty();
        for (const auto& img : fImages) {
            SkRect imgB = SkRect::MakeWH(img->width(), img->height());
            for (const auto& m : matrices) {
                SkRect temp;
                m.mapRect(&temp, imgB);
                bounds.join(temp);
            }
        }
        canvas->translate(-bounds.fLeft + 10.f, -bounds.fTop + 10.f);
        canvas->save();
        enum class DrawType {
            kDrawImage,
            kDrawImageRectStrict,
            kDrawImageRectFast,
        };
        for (auto type :
             {DrawType::kDrawImage, DrawType::kDrawImageRectStrict, DrawType::kDrawImageRectFast}) {
            for (const auto& m : matrices) {
                for (auto aa : {false, true}) {
                    paint.setAntiAlias(aa);
                    for (auto sampling : {
                        SkSamplingOptions(SkFilterMode::kNearest),
                        SkSamplingOptions(SkFilterMode::kLinear),
                        SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear),
                        SkSamplingOptions(SkCubicResampler::Mitchell())}) {
                        for (const auto& origImage : fImages) {
                            sk_sp<SkImage> img = ToolUtils::MakeTextureImage(canvas, origImage);
                            if (img) {
                                canvas->save();
                                canvas->concat(m);
                                SkRect src = { img->width() / 4.f, img->height() / 4.f,
                                               3.f * img->width() / 4.f, 3.f * img->height() / 4 };
                                SkRect dst = { 0, 0,
                                               3.f / 4.f * img->width(), 3.f / 4.f * img->height()};
                                switch (type) {
                                    case DrawType::kDrawImage:
                                        canvas->drawImage(img, 0, 0, sampling, &paint);
                                        break;
                                    case DrawType::kDrawImageRectStrict:
                                        canvas->drawImageRect(img, src, dst, sampling, &paint,
                                                              SkCanvas::kStrict_SrcRectConstraint);
                                        break;
                                    case DrawType::kDrawImageRectFast:
                                        canvas->drawImageRect(img, src, dst, sampling, &paint,
                                                              SkCanvas::kFast_SrcRectConstraint);
                                        break;
                                }
                                canvas->restore();
                            }
                            ++n;
                            if (n < 8) {
                                canvas->translate(bounds.width() + 10.f, 0);
                            } else {
                                canvas->restore();
                                canvas->translate(0, bounds.height() + 10.f);
                                canvas->save();
                                n = 0;
                            }
                        }
                    }
                }
            }
        }
        canvas->restore();
    }

onOnceBeforeDraw()

void skiagm::PerspImages::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 48 of file perspimages.cpp.

                                     {
        fImages.push_back(make_image1());
        fImages.push_back(make_image2());
    }

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

• third_party/skia/gm/perspimages.cpp