skiagm::YUVtoRGBSubsetEffect Class Reference

Inheritance diagram for skiagm::YUVtoRGBSubsetEffect:

Public Member Functions
	YUVtoRGBSubsetEffect ()
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

Protected Member Functions
SkString	getName () const override
SkISize	getISize () override
void	makePixmaps ()
DrawResult	onGpuSetup (SkCanvas *canvas, SkString *errorMsg, GraphiteTestContext *) override
void	onGpuTeardown () override
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 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
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 39 of file yuvtorgbsubset.cpp.

Constructor & Destructor Documentation

YUVtoRGBSubsetEffect()

skiagm::YUVtoRGBSubsetEffect::YUVtoRGBSubsetEffect ( )

inline

Definition at line 41 of file yuvtorgbsubset.cpp.

                           {
        this->setBGColor(0xFFFFFFFF);
    }

Member Function Documentation

getISize()

SkISize skiagm::YUVtoRGBSubsetEffect::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 48 of file yuvtorgbsubset.cpp.

{ return {1310, 540}; }

getName()

SkString skiagm::YUVtoRGBSubsetEffect::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 46 of file yuvtorgbsubset.cpp.

{ return SkString("yuv_to_rgb_subset_effect"); }

makePixmaps()

void skiagm::YUVtoRGBSubsetEffect::makePixmaps ( )

inlineprotected

Definition at line 50 of file yuvtorgbsubset.cpp.

                       {
        SkYUVAInfo yuvaInfo = SkYUVAInfo({8, 8},
                                         SkYUVAInfo::PlaneConfig::kY_U_V,
                                         SkYUVAInfo::Subsampling::k420,
                                         kJPEG_Full_SkYUVColorSpace);
        SkColorType colorTypes[] = {kAlpha_8_SkColorType,
                                    kAlpha_8_SkColorType,
                                    kAlpha_8_SkColorType};
        SkYUVAPixmapInfo pmapInfo(yuvaInfo, colorTypes, nullptr);
        fPixmaps = SkYUVAPixmaps::Allocate(pmapInfo);
 
        unsigned char innerY[16] = {149, 160, 130, 105,
                                    160, 130, 105, 149,
                                    130, 105, 149, 160,
                                    105, 149, 160, 130};
        unsigned char innerU[4] = {43, 75, 145, 200};
        unsigned char innerV[4] = {88, 180, 200, 43};
        int outerYUV[] = {128, 128, 128};
        SkBitmap bitmaps[3];
        for (int i = 0; i < 3; ++i) {
            bitmaps[i].installPixels(fPixmaps.plane(i));
            bitmaps[i].eraseColor(SkColorSetARGB(outerYUV[i], 0, 0, 0));
        }
        SkPixmap innerYPM(SkImageInfo::MakeA8(4, 4), innerY, 4);
        SkPixmap innerUPM(SkImageInfo::MakeA8(2, 2), innerU, 2);
        SkPixmap innerVPM(SkImageInfo::MakeA8(2, 2), innerV, 2);
        bitmaps[0].writePixels(innerYPM, 2, 2);
        bitmaps[1].writePixels(innerUPM, 1, 1);
        bitmaps[2].writePixels(innerVPM, 1, 1);
    }

onDraw()

DrawResult skiagm::YUVtoRGBSubsetEffect::onDraw ( SkCanvas *  canvas, SkString *  errorMsg  )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 110 of file yuvtorgbsubset.cpp.

                                                   {
        auto context = GrAsDirectContext(canvas->recordingContext());
        skgpu::graphite::Recorder* recorder = nullptr;
#if defined(SK_GRAPHITE)
        recorder = canvas->recorder();
#endif
        if (!context && !recorder) {
            *errorMsg = kErrorMsg_DrawSkippedGpuOnly;
            return DrawResult::kSkip;
        }
 
        if (!fYUVImage) {
            *errorMsg = "No valid YUV image generated -- skipping";
            return DrawResult::kSkip;
        }
 
        static const SkFilterMode kFilters[] = {SkFilterMode::kNearest,
                                                SkFilterMode::kLinear};
        static const SkIRect kColorRect = SkIRect::MakeLTRB(2, 2, 6, 6);
 
        // Outset to visualize wrap modes.
        SkRect rect = SkRect::Make(fYUVImage->dimensions());
        rect = rect.makeOutset(fYUVImage->width()/2.f, fYUVImage->height()/2.f);
 
        SkScalar y = kTestPad;
        // Rows are filter modes.
        for (uint32_t i = 0; i < std::size(kFilters); ++i) {
            SkScalar x = kTestPad;
            // Columns are non-subsetted followed by subsetted with each TileMode in a row
            for (uint32_t j = 0; j < kSkTileModeCount + 1; ++j) {
                SkMatrix ctm = SkMatrix::Translate(x, y);
                ctm.postScale(10.f, 10.f);
 
                const SkIRect* subset = j > 0 ? &kColorRect : nullptr;
 
                auto tm = SkTileMode::kClamp;
                if (j > 0) {
                    tm = static_cast<SkTileMode>(j - 1);
                }
 
                canvas->save();
                canvas->concat(ctm);
                SkSamplingOptions sampling(kFilters[i]);
                SkPaint paint;
                // Draw black rectangle in background so rendering with Decal tilemode matches
                // the previously used ClampToBorder wrapmode.
                paint.setColor(SK_ColorBLACK);
                canvas->drawRect(rect, paint);
                if (subset) {
                    sk_sp<SkImage> subsetImg;
#if defined(SK_GRAPHITE)
                    if (recorder) {
                        subsetImg = fYUVImage->makeSubset(recorder, *subset, {false});
                    } else
#endif
                    {
                        subsetImg = fYUVImage->makeSubset(context, *subset);
                    }
                    SkASSERT(subsetImg);
                    paint.setShader(subsetImg->makeShader(tm, tm,
                                                          sampling, SkMatrix::Translate(2, 2)));
                } else {
                    paint.setShader(fYUVImage->makeShader(tm, tm,
                                                          sampling, SkMatrix::I()));
                }
                canvas->drawRect(rect, paint);
                canvas->restore();
                x += rect.width() + kTestPad;
            }
 
            y += rect.height() + kTestPad;
        }
 
        return DrawResult::kOk;
    }

onGpuSetup()

DrawResult skiagm::YUVtoRGBSubsetEffect::onGpuSetup ( SkCanvas *  canvas, SkString *  errorMsg, GraphiteTestContext *    )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 81 of file yuvtorgbsubset.cpp.

                                                                                               {
        auto context = GrAsDirectContext(canvas->recordingContext());
        skgpu::graphite::Recorder* recorder = nullptr;
#if defined(SK_GRAPHITE)
        recorder = canvas->recorder();
#endif
        if (!context && !recorder) {
            return DrawResult::kSkip;
        }
 
        if (!fPixmaps.isValid()) {
            this->makePixmaps();
        }
 
        auto lazyYUV = sk_gpu_test::LazyYUVImage::Make(fPixmaps);
#if defined(SK_GRAPHITE)
        if (recorder) {
            fYUVImage = lazyYUV->refImage(recorder, sk_gpu_test::LazyYUVImage::Type::kFromPixmaps);
        } else
#endif
        {
            fYUVImage = lazyYUV->refImage(context, sk_gpu_test::LazyYUVImage::Type::kFromPixmaps);
        }
 
        return DrawResult::kOk;
    }

onGpuTeardown()

void skiagm::YUVtoRGBSubsetEffect::onGpuTeardown ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 108 of file yuvtorgbsubset.cpp.

{ fYUVImage.reset(); }

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

• third_party/skia/gm/yuvtorgbsubset.cpp