SkGlyphDigest Class Reference

#include <SkGlyph.h>

Public Member Functions
	SkGlyphDigest ()=default
	SkGlyphDigest (size_t index, const SkGlyph &glyph)
int	index () const
bool	isEmpty () const
bool	isColor () const
SkMask::Format	maskFormat () const
skglyph::GlyphAction	actionFor (skglyph::ActionType actionType) const
void	setActionFor (skglyph::ActionType, SkGlyph *, sktext::StrikeForGPU *)
uint16_t	maxDimension () const
bool	fitsInAtlasDirect () const
bool	fitsInAtlasInterpolated () const
SkGlyphRect	bounds () const

Static Public Member Functions
static bool	FitsInAtlas (const SkGlyph &glyph)
static SkPackedGlyphID	GetKey (SkGlyphDigest digest)
static uint32_t	Hash (SkPackedGlyphID packedID)

Static Public Attributes
static constexpr uint16_t	kSkSideTooBigForAtlas = 256

Detailed Description

Definition at line 329 of file SkGlyph.h.

Constructor & Destructor Documentation

SkGlyphDigest() [1/2]

SkGlyphDigest::SkGlyphDigest ( )

default

SkGlyphDigest() [2/2]

SkGlyphDigest::SkGlyphDigest	(	size_t	index,
		const SkGlyph &	glyph
	)

Definition at line 623 of file SkGlyph.cpp.

        : fPackedID{SkTo<uint64_t>(glyph.getPackedID().value())}
        , fIndex{SkTo<uint64_t>(index)}
        , fIsEmpty(glyph.isEmpty())
        , fFormat(glyph.maskFormat())
        , fActions{init_actions(glyph)}
        , fLeft{SkTo<int16_t>(glyph.left())}
        , fTop{SkTo<int16_t>(glyph.top())}
        , fWidth{SkTo<uint16_t>(glyph.width())}
        , fHeight{SkTo<uint16_t>(glyph.height())} {}

Member Function Documentation

actionFor()

skglyph::GlyphAction SkGlyphDigest::actionFor ( skglyph::ActionType  actionType ) const

inline

Definition at line 343 of file SkGlyph.h.

                                                                     {
        return static_cast<skglyph::GlyphAction>((fActions >> actionType) & 0b11);
    }

bounds()

SkGlyphRect SkGlyphDigest::bounds ( ) const

inline

Definition at line 362 of file SkGlyph.h.

                               {
        return SkGlyphRect(fLeft, fTop, (SkScalar)fLeft + fWidth, (SkScalar)fTop + fHeight);
    }

FitsInAtlas()

bool SkGlyphDigest::FitsInAtlas ( const SkGlyph &  glyph )

static

Definition at line 684 of file SkGlyph.cpp.

                                                    {
    return glyph.maxDimension() <= kSkSideTooBigForAtlas;
}

fitsInAtlasDirect()

bool SkGlyphDigest::fitsInAtlasDirect ( ) const

inline

Definition at line 353 of file SkGlyph.h.

                                   {
        return this->maxDimension() <= kSkSideTooBigForAtlas;
    }

fitsInAtlasInterpolated()

bool SkGlyphDigest::fitsInAtlasInterpolated ( ) const

inline

Definition at line 357 of file SkGlyph.h.

                                         {
        // Include the padding needed for interpolating the glyph when drawing.
        return this->maxDimension() <= kSkSideTooBigForAtlas - 2;
    }

GetKey()

static SkPackedGlyphID SkGlyphDigest::GetKey ( SkGlyphDigest  digest )

inlinestatic

Definition at line 369 of file SkGlyph.h.

                                                        {
        return SkPackedGlyphID{SkTo<uint32_t>(digest.fPackedID)};
    }

Hash()

static uint32_t SkGlyphDigest::Hash ( SkPackedGlyphID  packedID )

inlinestatic

Definition at line 372 of file SkGlyph.h.

                                                   {
        return packedID.hash();
    }

index()

int SkGlyphDigest::index ( ) const

inline

Definition at line 338 of file SkGlyph.h.

{ return fIndex; }

isColor()

bool SkGlyphDigest::isColor ( ) const

inline

Definition at line 340 of file SkGlyph.h.

{ return fFormat == SkMask::kARGB32_Format; }

isEmpty()

bool SkGlyphDigest::isEmpty ( ) const

inline

Definition at line 339 of file SkGlyph.h.

{ return fIsEmpty; }

maskFormat()

SkMask::Format SkGlyphDigest::maskFormat ( ) const

inline

Definition at line 341 of file SkGlyph.h.

{ return static_cast<SkMask::Format>(fFormat); }

maxDimension()

uint16_t SkGlyphDigest::maxDimension ( ) const

inline

Definition at line 349 of file SkGlyph.h.

                                  {
        return std::max(fWidth, fHeight);
    }

setActionFor()

void SkGlyphDigest::setActionFor	(	skglyph::ActionType	actionType,
		SkGlyph *	glyph,
		sktext::StrikeForGPU *	strike
	)

Definition at line 634 of file SkGlyph.cpp.

                                                       {
    // We don't have to do any more if the glyph is marked as kDrop because it was isEmpty().
    if (this->actionFor(actionType) == GlyphAction::kUnset) {
        GlyphAction action = GlyphAction::kReject;
        switch (actionType) {
            case kDirectMask: {
                if (this->fitsInAtlasDirect()) {
                    action = GlyphAction::kAccept;
                }
                break;
            }
            case kDirectMaskCPU: {
                if (strike->prepareForImage(glyph)) {
                    SkASSERT(!glyph->isEmpty());
                    action = GlyphAction::kAccept;
                }
                break;
            }
            case kMask: {
                if (this->fitsInAtlasInterpolated()) {
                    action = GlyphAction::kAccept;
                }
                break;
            }
            case kSDFT: {
                if (this->fitsInAtlasDirect() &&
                    this->maskFormat() == SkMask::Format::kSDF_Format) {
                    action = GlyphAction::kAccept;
                }
                break;
            }
            case kPath: {
                if (strike->prepareForPath(glyph)) {
                    action = GlyphAction::kAccept;
                }
                break;
            }
            case kDrawable: {
                if (strike->prepareForDrawable(glyph)) {
                    action = GlyphAction::kAccept;
                }
                break;
            }
        }
        this->setAction(actionType, action);
    }
}

Member Data Documentation

fActions

uint64_t SkGlyphDigest::fActions

Definition at line 394 of file SkGlyph.h.

fFormat

uint64_t SkGlyphDigest::fFormat

Definition at line 393 of file SkGlyph.h.

fIndex

uint64_t SkGlyphDigest::fIndex

Definition at line 391 of file SkGlyph.h.

fIsEmpty

uint64_t SkGlyphDigest::fIsEmpty

Definition at line 392 of file SkGlyph.h.

fPackedID

uint64_t SkGlyphDigest::fPackedID

Definition at line 390 of file SkGlyph.h.

kSkSideTooBigForAtlas

constexpr uint16_t SkGlyphDigest::kSkSideTooBigForAtlas = 256

staticconstexpr

Definition at line 333 of file SkGlyph.h.

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

• third_party/skia/src/core/SkGlyph.h
• third_party/skia/src/core/SkGlyph.cpp