SkPackedGlyphID Struct Reference

#include <SkGlyph.h>

Classes
struct	Hash

Public Types
enum	{   kGlyphIDLen = 16u , kSubPixelPosLen = 2u , kSubPixelX = 0u , kGlyphID = kSubPixelPosLen ,   kSubPixelY = kGlyphIDLen + kSubPixelPosLen , kEndData = kGlyphIDLen + 2 * kSubPixelPosLen , kGlyphIDMask = (1u << kGlyphIDLen) - 1 , kSubPixelPosMask = (1u << kSubPixelPosLen) - 1 ,   kMaskAll = (1u << kEndData) - 1 , kFixedPointBinaryPointPos = 16u , kFixedPointSubPixelPosBits = kFixedPointBinaryPointPos - kSubPixelPosLen }

Public Member Functions
constexpr	SkPackedGlyphID (SkGlyphID glyphID)
constexpr	SkPackedGlyphID (SkGlyphID glyphID, SkFixed x, SkFixed y)
constexpr	SkPackedGlyphID (SkGlyphID glyphID, uint32_t x, uint32_t y)
	SkPackedGlyphID (SkGlyphID glyphID, SkPoint pt, SkIPoint mask)
constexpr	SkPackedGlyphID (uint32_t v)
constexpr	SkPackedGlyphID ()
bool	operator== (const SkPackedGlyphID &that) const
bool	operator!= (const SkPackedGlyphID &that) const
bool	operator< (SkPackedGlyphID that) const
SkGlyphID	glyphID () const
uint32_t	value () const
SkFixed	getSubXFixed () const
SkFixed	getSubYFixed () const
uint32_t	hash () const
SkString	dump () const
SkString	shortDump () const

Static Public Attributes
static constexpr uint32_t	kImpossibleID = ~0u
static const constexpr SkScalar	kSubpixelRound
static const constexpr SkIPoint	kXYFieldMask

Detailed Description

Definition at line 46 of file SkGlyph.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
kGlyphIDLen
kSubPixelPosLen
kSubPixelX
kGlyphID
kSubPixelY
kEndData
kGlyphIDMask
kSubPixelPosMask
kMaskAll
kFixedPointBinaryPointPos
kFixedPointSubPixelPosBits

Definition at line 48 of file SkGlyph.h.

         {
        // Lengths
        kGlyphIDLen     = 16u,
        kSubPixelPosLen = 2u,
 
        // Bit positions
        kSubPixelX = 0u,
        kGlyphID   = kSubPixelPosLen,
        kSubPixelY = kGlyphIDLen + kSubPixelPosLen,
        kEndData   = kGlyphIDLen + 2 * kSubPixelPosLen,
 
        // Masks
        kGlyphIDMask     = (1u << kGlyphIDLen) - 1,
        kSubPixelPosMask = (1u << kSubPixelPosLen) - 1,
        kMaskAll         = (1u << kEndData) - 1,
 
        // Location of sub pixel info in a fixed pointer number.
        kFixedPointBinaryPointPos = 16u,
        kFixedPointSubPixelPosBits = kFixedPointBinaryPointPos - kSubPixelPosLen,
    };

Constructor & Destructor Documentation

SkPackedGlyphID() [1/6]

constexpr SkPackedGlyphID::SkPackedGlyphID ( SkGlyphID  glyphID )

inlineexplicitconstexpr

Definition at line 81 of file SkGlyph.h.

            : fID{(uint32_t)glyphID << kGlyphID} { }

SkPackedGlyphID() [2/6]

constexpr SkPackedGlyphID::SkPackedGlyphID ( SkGlyphID  glyphID, SkFixed  x, SkFixed  y  )

inlineconstexpr

Definition at line 84 of file SkGlyph.h.

            : fID {PackIDXY(glyphID, x, y)} { }

SkPackedGlyphID() [3/6]

constexpr SkPackedGlyphID::SkPackedGlyphID ( SkGlyphID  glyphID, uint32_t  x, uint32_t  y  )

inlineconstexpr

Definition at line 87 of file SkGlyph.h.

            : fID {PackIDSubXSubY(glyphID, x, y)} { }

SkPackedGlyphID() [4/6]

SkPackedGlyphID::SkPackedGlyphID ( SkGlyphID  glyphID, SkPoint  pt, SkIPoint  mask  )

inline

Definition at line 90 of file SkGlyph.h.

        : fID{PackIDSkPoint(glyphID, pt, mask)} { }

SkPackedGlyphID() [5/6]

constexpr SkPackedGlyphID::SkPackedGlyphID ( uint32_t  v )

inlineexplicitconstexpr

Definition at line 93 of file SkGlyph.h.

: fID{v & kMaskAll} { }

SkPackedGlyphID() [6/6]

constexpr SkPackedGlyphID::SkPackedGlyphID ( )

inlineconstexpr

Definition at line 94 of file SkGlyph.h.

: fID{kImpossibleID} {}

Member Function Documentation

dump()

SkString SkPackedGlyphID::dump ( ) const

inline

Definition at line 126 of file SkGlyph.h.

                          {
        SkString str;
        str.appendf("glyphID: %d, x: %d, y:%d", glyphID(), getSubXFixed(), getSubYFixed());
        return str;
    }

getSubXFixed()

SkFixed SkPackedGlyphID::getSubXFixed ( ) const

inline

Definition at line 114 of file SkGlyph.h.

                                 {
        return this->subToFixed(kSubPixelX);
    }

getSubYFixed()

SkFixed SkPackedGlyphID::getSubYFixed ( ) const

inline

Definition at line 118 of file SkGlyph.h.

                                 {
        return this->subToFixed(kSubPixelY);
    }

glyphID()

SkGlyphID SkPackedGlyphID::glyphID ( ) const

inline

Definition at line 106 of file SkGlyph.h.

                              {
        return (fID >> kGlyphID) & kGlyphIDMask;
    }

hash()

uint32_t SkPackedGlyphID::hash ( ) const

inline

Definition at line 122 of file SkGlyph.h.

                          {
        return SkChecksum::CheapMix(fID);
    }

operator!=()

bool SkPackedGlyphID::operator!= ( const SkPackedGlyphID &  that ) const

inline

Definition at line 99 of file SkGlyph.h.

                                                       {
        return !(*this == that);
    }

operator<()

bool SkPackedGlyphID::operator< ( SkPackedGlyphID  that ) const

inline

Definition at line 102 of file SkGlyph.h.

                                               {
        return this->fID < that.fID;
    }

operator==()

bool SkPackedGlyphID::operator== ( const SkPackedGlyphID &  that ) const

inline

Definition at line 96 of file SkGlyph.h.

                                                       {
        return fID == that.fID;
    }

shortDump()

SkString SkPackedGlyphID::shortDump ( ) const

inline

Definition at line 132 of file SkGlyph.h.

                               {
        SkString str;
        str.appendf("0x%x|%1u|%1u", this->glyphID(),
                                    this->subPixelField(kSubPixelX),
                                    this->subPixelField(kSubPixelY));
        return str;
    }

value()

uint32_t SkPackedGlyphID::value ( ) const

inline

Definition at line 110 of file SkGlyph.h.

                           {
        return fID;
    }

Member Data Documentation

kImpossibleID

constexpr uint32_t SkPackedGlyphID::kImpossibleID = ~0u

inlinestaticconstexpr

Definition at line 47 of file SkGlyph.h.

kSubpixelRound

const constexpr SkScalar SkPackedGlyphID::kSubpixelRound

inlinestaticconstexpr

Initial value:

=
            1.f / (1u << (SkPackedGlyphID::kSubPixelPosLen + 1))

Definition at line 69 of file SkGlyph.h.

kXYFieldMask

const constexpr SkIPoint SkPackedGlyphID::kXYFieldMask

inlinestaticconstexpr

Initial value:

{kSubPixelPosMask << kSubPixelX,
                                                        kSubPixelPosMask << kSubPixelY}

Definition at line 72 of file SkGlyph.h.

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

• third_party/skia/src/core/SkGlyph.h