Inheritance diagram for EllipticalRRectOp:

Public Member Functions
	EllipticalRRectOp (GrProcessorSet *processorSet, const SkPMColor4f &color, const SkMatrix &viewMatrix, const SkRect &devRect, float devXRadius, float devYRadius, SkVector devStrokeHalfWidths, bool strokeOnly)

const char *	name () const override

void	visitProxies (const GrVisitProxyFunc &func) const override

GrProcessorSet::Analysis	finalize (const GrCaps &caps, const GrAppliedClip *clip, GrClampType clampType) override

FixedFunctionFlags	fixedFunctionFlags () const override

Public Member Functions inherited from GrDrawOp
	GrDrawOp (uint32_t classID)

virtual bool	usesMSAA () const

virtual ClipResult	clipToShape (skgpu::ganesh::SurfaceDrawContext *, SkClipOp, const SkMatrix &, const GrShape &, GrAA)

virtual bool	usesStencil () const

Public Member Functions inherited from GrOp
virtual	~GrOp ()=default

CombineResult	combineIfPossible (GrOp that, SkArenaAlloc alloc, const GrCaps &caps)

const SkRect &	bounds () const

void	setClippedBounds (const SkRect &clippedBounds)

bool	hasAABloat () const

bool	hasZeroArea () const

void	operator delete (void *p)

template<typename T >
const T &	cast () const

template<typename T >
T *	cast ()

uint32_t	classID () const

uint32_t	uniqueID () const

void	prePrepare (GrRecordingContext context, const GrSurfaceProxyView &dstView, GrAppliedClip clip, const GrDstProxyView &dstProxyView, GrXferBarrierFlags renderPassXferBarriers, GrLoadOp colorLoadOp)

void	prepare (GrOpFlushState *state)

void	execute (GrOpFlushState *state, const SkRect &chainBounds)

void	chainConcat (GrOp::Owner)

bool	isChainHead () const

bool	isChainTail () const

GrOp *	nextInChain () const

GrOp *	prevInChain () const

GrOp::Owner	cutChain ()

void	setBounds (const SkRect &newBounds, HasAABloat aabloat, IsHairline zeroArea)

void	setTransformedBounds (const SkRect &srcBounds, const SkMatrix &m, HasAABloat aabloat, IsHairline zeroArea)

void	makeFullScreen (GrSurfaceProxy *proxy)

Static Public Member Functions
static DEFINE_OP_CLASS_ID GrOp::Owner	Make (GrRecordingContext *context, GrPaint &&paint, const SkMatrix &viewMatrix, const SkRect &devRect, float devXRadius, float devYRadius, SkVector devStrokeWidths, bool strokeOnly)

Static Public Member Functions inherited from GrMeshDrawOp
static bool	CanUpgradeAAOnMerge (GrAAType aa1, GrAAType aa2)

Static Public Member Functions inherited from GrOp
template<typename Op , typename... Args>
static Owner	Make (GrRecordingContext *context, Args &&... args)

template<typename Op , typename... Args>
static Owner	MakeWithProcessorSet (GrRecordingContext *context, const SkPMColor4f &color, GrPaint &&paint, Args &&... args)

template<typename Op , typename... Args>
static Owner	MakeWithExtraMemory (GrRecordingContext *context, size_t extraSize, Args &&... args)

static uint32_t	GenOpClassID ()

Private Member Functions
GrProgramInfo *	programInfo () override

void	onCreateProgramInfo (const GrCaps caps, SkArenaAlloc arena, const GrSurfaceProxyView &writeView, bool usesMSAASurface, GrAppliedClip &&appliedClip, const GrDstProxyView &dstProxyView, GrXferBarrierFlags renderPassXferBarriers, GrLoadOp colorLoadOp) override

void	onPrepareDraws (GrMeshDrawTarget *target) override

void	onExecute (GrOpFlushState *flushState, const SkRect &chainBounds) override

CombineResult	onCombineIfPossible (GrOp t, SkArenaAlloc , const GrCaps &caps) override

Additional Inherited Members
Public Types inherited from GrDrawOp
enum class	ClipResult { kFail , kClippedGeometrically , kClippedInShader , kClippedOut }

Public Types inherited from GrOp
enum class	CombineResult { kMerged , kMayChain , kCannotCombine }

enum class	HasAABloat : bool { kNo = false , kYes = true }

enum class	IsHairline : bool { kNo = false , kYes = true }

using	Owner = std::unique_ptr< GrOp >

Protected Types inherited from GrDrawOp
enum class	FixedFunctionFlags : uint32_t { kNone = 0x0 , kUsesHWAA = 0x1 , kUsesStencil = 0x2 }

Protected Member Functions inherited from GrMeshDrawOp
	GrMeshDrawOp (uint32_t classID)

void	createProgramInfo (const GrCaps caps, SkArenaAlloc arena, const GrSurfaceProxyView &writeView, bool usesMSAASurface, GrAppliedClip &&appliedClip, const GrDstProxyView &dstProxyView, GrXferBarrierFlags renderPassXferBarriers, GrLoadOp colorLoadOp)

void	createProgramInfo (GrMeshDrawTarget *)

virtual void	onPrePrepareDraws (GrRecordingContext , const GrSurfaceProxyView &writeView, GrAppliedClip , const GrDstProxyView &, GrXferBarrierFlags renderPassXferBarriers, GrLoadOp colorLoadOp)

Protected Member Functions inherited from GrDrawOp
	GR_DECL_BITFIELD_CLASS_OPS_FRIENDS (FixedFunctionFlags)

Static Protected Member Functions inherited from GrMeshDrawOp
static bool	CombinedQuadCountWillOverflow (GrAAType aaType, bool willBeUpgradedToAA, int combinedQuadCount)

Detailed Description

Definition at line 2877 of file GrOvalOpFactory.cpp.

Constructor & Destructor Documentation

◆ EllipticalRRectOp()

EllipticalRRectOp::EllipticalRRectOp	(	GrProcessorSet *	processorSet,
		const SkPMColor4f &	color,
		const SkMatrix &	viewMatrix,
		const SkRect &	devRect,
		float	devXRadius,
		float	devYRadius,
		SkVector	devStrokeHalfWidths,
		bool	strokeOnly
	)

inline

Definition at line 2928 of file GrOvalOpFactory.cpp.

            : INHERITED(ClassID())
            , fHelper(processorSet, GrAAType::kCoverage)
            , fUseScale(false) {
        SkScalar innerXRadius = 0.0f;
        SkScalar innerYRadius = 0.0f;
        SkRect bounds = devRect;
        bool stroked = false;
        if (devStrokeHalfWidths.fX > 0) {
            // this is legit only if scale & translation (which should be the case at the moment)
            if (strokeOnly) {
                innerXRadius = devXRadius - devStrokeHalfWidths.fX;
                innerYRadius = devYRadius - devStrokeHalfWidths.fY;
                stroked = (innerXRadius >= 0 && innerYRadius >= 0);
            }
 
            devXRadius += devStrokeHalfWidths.fX;
            devYRadius += devStrokeHalfWidths.fY;
            bounds.outset(devStrokeHalfWidths.fX, devStrokeHalfWidths.fY);
        }
 
        fStroked = stroked;
        fViewMatrixIfUsingLocalCoords = viewMatrix;
        this->setBounds(bounds, HasAABloat::kYes, IsHairline::kNo);
        fRRects.emplace_back(
                RRect{color, devXRadius, devYRadius, innerXRadius, innerYRadius, bounds});
    }

Member Function Documentation

◆ finalize()

GrProcessorSet::Analysis EllipticalRRectOp::finalize	(	const GrCaps &	,
		const GrAppliedClip *	,
		GrClampType
	)

inlineoverridevirtual

This is called after the GrAppliedClip has been computed and just prior to recording the op or combining it with a previously recorded op. The op should convert any proxies or resources it owns to "pending io" status so that resource allocation can be more optimal. Additionally, at this time the op must report whether a copy of the destination (or destination texture itself) needs to be provided to the GrXferProcessor when this op executes.

Implements GrDrawOp.

Definition at line 2968 of file GrOvalOpFactory.cpp.

                                                                      {
        fUseScale = !caps.shaderCaps()->fFloatIs32Bits;
        SkPMColor4f* color = &fRRects.front().fColor;
        return fHelper.finalizeProcessors(caps, clip, clampType,
                                          GrProcessorAnalysisCoverage::kSingleChannel, color,
                                          &fWideColor);
    }

◆ fixedFunctionFlags()

FixedFunctionFlags EllipticalRRectOp::fixedFunctionFlags ( ) const

inlineoverridevirtual

Reimplemented from GrDrawOp.

Definition at line 2977 of file GrOvalOpFactory.cpp.

2977{ return fHelper.fixedFunctionFlags(); }

GrSimpleMeshDrawOpHelper::fixedFunctionFlags

GrDrawOp::FixedFunctionFlags fixedFunctionFlags() const

Definition GrSimpleMeshDrawOpHelper.cpp:35

◆ Make()

static DEFINE_OP_CLASS_ID GrOp::Owner EllipticalRRectOp::Make	(	GrRecordingContext *	context,
		GrPaint &&	paint,
		const SkMatrix &	viewMatrix,
		const SkRect &	devRect,
		float	devXRadius,
		float	devYRadius,
		SkVector	devStrokeWidths,
		bool	strokeOnly
	)

inlinestatic

Definition at line 2886 of file GrOvalOpFactory.cpp.

                                             {
        SkASSERT(devXRadius >= 0.5 || strokeOnly);
        SkASSERT(devYRadius >= 0.5 || strokeOnly);
        SkASSERT((devStrokeWidths.fX > 0) == (devStrokeWidths.fY > 0));
        SkASSERT(!(strokeOnly && devStrokeWidths.fX <= 0));
        if (devStrokeWidths.fX > 0) {
            if (SkScalarNearlyZero(devStrokeWidths.length())) {
                devStrokeWidths.set(SK_ScalarHalf, SK_ScalarHalf);
            } else {
                devStrokeWidths.scale(SK_ScalarHalf);
            }
 
            // we only handle thick strokes for near-circular ellipses
            if (devStrokeWidths.length() > SK_ScalarHalf &&
                (SK_ScalarHalf * devXRadius > devYRadius ||
                 SK_ScalarHalf * devYRadius > devXRadius)) {
                return nullptr;
            }
 
            // we don't handle it if curvature of the stroke is less than curvature of the ellipse
            if (devStrokeWidths.fX * (devYRadius * devYRadius) <
                (devStrokeWidths.fY * devStrokeWidths.fY) * devXRadius) {
                return nullptr;
            }
            if (devStrokeWidths.fY * (devXRadius * devXRadius) <
                (devStrokeWidths.fX * devStrokeWidths.fX) * devYRadius) {
                return nullptr;
            }
        }
        return Helper::FactoryHelper<EllipticalRRectOp>(context, std::move(paint),
                                                        viewMatrix, devRect,
                                                        devXRadius, devYRadius, devStrokeWidths,
                                                        strokeOnly);
    }

◆ name()

const char * EllipticalRRectOp::name ( ) const

inlineoverridevirtual

Implements GrOp.

Definition at line 2958 of file GrOvalOpFactory.cpp.

2958{ return "EllipticalRRectOp"; }

◆ onCombineIfPossible()

CombineResult EllipticalRRectOp::onCombineIfPossible	(	GrOp *	t,
		SkArenaAlloc *	,
		const GrCaps &	caps
	)

inlineoverrideprivatevirtual

Reimplemented from GrOp.

Definition at line 3113 of file GrOvalOpFactory.cpp.

                                                                                           {
        EllipticalRRectOp* that = t->cast<EllipticalRRectOp>();
 
        if (!fHelper.isCompatible(that->fHelper, caps, this->bounds(), that->bounds())) {
            return CombineResult::kCannotCombine;
        }
 
        if (fStroked != that->fStroked) {
            return CombineResult::kCannotCombine;
        }
 
        if (fHelper.usesLocalCoords() &&
            !SkMatrixPriv::CheapEqual(fViewMatrixIfUsingLocalCoords,
                                      that->fViewMatrixIfUsingLocalCoords)) {
            return CombineResult::kCannotCombine;
        }
 
        fRRects.push_back_n(that->fRRects.size(), that->fRRects.begin());
        fWideColor = fWideColor || that->fWideColor;
        return CombineResult::kMerged;
    }

◆ onCreateProgramInfo()

void EllipticalRRectOp::onCreateProgramInfo	(	const GrCaps *	caps,
		SkArenaAlloc *	arena,
		const GrSurfaceProxyView &	writeView,
		bool	usesMSAASurface,
		GrAppliedClip &&	appliedClip,
		const GrDstProxyView &	dstProxyView,
		GrXferBarrierFlags	renderPassXferBarriers,
		GrLoadOp	colorLoadOp
	)

inlineoverrideprivatevirtual

Implements GrMeshDrawOp.

Definition at line 2982 of file GrOvalOpFactory.cpp.

                                                            {
        SkMatrix localMatrix;
        if (!fViewMatrixIfUsingLocalCoords.invert(&localMatrix)) {
            return;
        }
 
        GrGeometryProcessor* gp = EllipseGeometryProcessor::Make(arena, fStroked, fWideColor,
                                                                 fUseScale, localMatrix);
 
        fProgramInfo = fHelper.createProgramInfo(caps, arena, writeView, usesMSAASurface,
                                                 std::move(appliedClip), dstProxyView, gp,
                                                 GrPrimitiveType::kTriangles,
                                                 renderPassXferBarriers, colorLoadOp);
    }

◆ onExecute()

void EllipticalRRectOp::onExecute	(	GrOpFlushState *	flushState,
		const SkRect &	chainBounds
	)

inlineoverrideprivatevirtual

Implements GrOp.

Definition at line 3103 of file GrOvalOpFactory.cpp.

                                                                                   {
        if (!fProgramInfo || !fMesh) {
            return;
        }
 
        flushState->bindPipelineAndScissorClip(*fProgramInfo, chainBounds);
        flushState->bindTextures(fProgramInfo->geomProc(), nullptr, fProgramInfo->pipeline());
        flushState->drawMesh(*fMesh);
    }

◆ onPrepareDraws()

void EllipticalRRectOp::onPrepareDraws ( GrMeshDrawTarget * target )

inlineoverrideprivatevirtual

Implements GrMeshDrawOp.

Definition at line 3004 of file GrOvalOpFactory.cpp.

                                                           {
        if (!fProgramInfo) {
            this->createProgramInfo(target);
            if (!fProgramInfo) {
                return;
            }
        }
 
        // drop out the middle quad if we're stroked
        int indicesPerInstance = fStroked ? kIndicesPerStrokeRRect : kIndicesPerFillRRect;
        sk_sp<const GrBuffer> indexBuffer = get_rrect_index_buffer(
                fStroked ? kStroke_RRectType : kFill_RRectType, target->resourceProvider());
 
        if (!indexBuffer) {
            SkDebugf("Could not allocate indices\n");
            return;
        }
        PatternHelper helper(target, GrPrimitiveType::kTriangles,
                             fProgramInfo->geomProc().vertexStride(),
                             std::move(indexBuffer), kVertsPerStandardRRect, indicesPerInstance,
                             fRRects.size(), kNumRRectsInIndexBuffer);
        VertexWriter verts{helper.vertices()};
        if (!verts) {
            SkDebugf("Could not allocate vertices\n");
            return;
        }
 
        for (const auto& rrect : fRRects) {
            VertexColor color(rrect.fColor, fWideColor);
            // Compute the reciprocals of the radii here to save time in the shader
            float reciprocalRadii[4] = {
                SkScalarInvert(rrect.fXRadius),
                SkScalarInvert(rrect.fYRadius),
                // Pinned below, so divide by zero is acceptable
                sk_ieee_float_divide(1.0f, rrect.fInnerXRadius),
                sk_ieee_float_divide(1.0f, rrect.fInnerYRadius)
            };
 
            // If the stroke width is exactly double the radius, the inner radii will be zero.
            // Pin to a large value, to avoid infinities in the shader. crbug.com/1139750
            reciprocalRadii[2] = std::min(reciprocalRadii[2], 1e6f);
            reciprocalRadii[3] = std::min(reciprocalRadii[3], 1e6f);
 
            // On MSAA, bloat enough to guarantee any pixel that might be touched by the rrect has
            // full sample coverage.
            float aaBloat = target->usesMSAASurface() ? SK_ScalarSqrt2 : .5f;
 
            // Extend out the radii to antialias.
            SkScalar xOuterRadius = rrect.fXRadius + aaBloat;
            SkScalar yOuterRadius = rrect.fYRadius + aaBloat;
 
            SkScalar xMaxOffset = xOuterRadius;
            SkScalar yMaxOffset = yOuterRadius;
            if (!fStroked) {
                // For filled rrects we map a unit circle in the vertex attributes rather than
                // computing an ellipse and modifying that distance, so we normalize to 1.
                xMaxOffset /= rrect.fXRadius;
                yMaxOffset /= rrect.fYRadius;
            }
 
            const SkRect& bounds = rrect.fDevBounds.makeOutset(aaBloat, aaBloat);
 
            SkScalar yCoords[4] = {bounds.fTop, bounds.fTop + yOuterRadius,
                                   bounds.fBottom - yOuterRadius, bounds.fBottom};
            SkScalar yOuterOffsets[4] = {yMaxOffset,
                                         SK_ScalarNearlyZero,  // we're using inversesqrt() in
                                                               // shader, so can't be exactly 0
                                         SK_ScalarNearlyZero, yMaxOffset};
 
            auto maybeScale = VertexWriter::If(fUseScale, std::max(rrect.fXRadius, rrect.fYRadius));
            for (int i = 0; i < 4; ++i) {
                verts << bounds.fLeft << yCoords[i]
                      << color
                      << xMaxOffset << yOuterOffsets[i]
                      << maybeScale
                      << reciprocalRadii;
 
                verts << (bounds.fLeft + xOuterRadius) << yCoords[i]
                      << color
                      << SK_ScalarNearlyZero << yOuterOffsets[i]
                      << maybeScale
                      << reciprocalRadii;
 
                verts << (bounds.fRight - xOuterRadius) << yCoords[i]
                      << color
                      << SK_ScalarNearlyZero << yOuterOffsets[i]
                      << maybeScale
                      << reciprocalRadii;
 
                verts << bounds.fRight << yCoords[i]
                      << color
                      << xMaxOffset << yOuterOffsets[i]
                      << maybeScale
                      << reciprocalRadii;
            }
        }
        fMesh = helper.mesh();
    }

◆ programInfo()

GrProgramInfo * EllipticalRRectOp::programInfo ( )

inlineoverrideprivatevirtual

Implements GrMeshDrawOp.

Definition at line 2980 of file GrOvalOpFactory.cpp.

2980{ return fProgramInfo; }

◆ visitProxies()

void EllipticalRRectOp::visitProxies ( const GrVisitProxyFunc & func ) const

inlineoverridevirtual

Reimplemented from GrOp.

Definition at line 2960 of file GrOvalOpFactory.cpp.

                                                                   {
        if (fProgramInfo) {
            fProgramInfo->visitFPProxies(func);
        } else {
            fHelper.visitProxies(func);
        }
    }

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

third_party/skia/src/gpu/ganesh/ops/GrOvalOpFactory.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EllipticalRRectOp()

Member Function Documentation

◆ finalize()

◆ fixedFunctionFlags()

◆ Make()

◆ name()

◆ onCombineIfPossible()

◆ onCreateProgramInfo()

◆ onExecute()

◆ onPrepareDraws()

◆ programInfo()

◆ visitProxies()