Detailed Description

Performs rasterisation scanning of glyphs/ vectors.

Inheritance diagram for Blaze.Scanner:

Public Member Functions
void	Start ()
	Called automatically when the first vector is rasterized. More...

void	CreateDistanceCache ()

void	MoveTo (float x, float y)

void	AddPoint (float x, float y)
	Adds the given point as a point on our vector. Note that it's relative at this point. More...

void	ReindexDistanceCache ()
	Clears out all node entries in the distance cache. More...

void	ClearDistanceCache ()
	Clears out all node entries in the distance cache. More...

bool	Rasterise (VectorPath glyph, Color32[] atlasPixels, int atlasWidth, int baseIndex, int width, int height, float hOffset, float vOffset, Color32 fill, bool clear)
	Rasterises a generic vector. More...

Public Attributes
int	BlurSpread =10
	The size of the SDF "blur" (distance field) in pixels around each vector. More...

float	ScalarX =1f
	Read only. Use Scale or ScaleX. A scalar value applied to all vectors rendered by this scanner. More...

float	ScalarY =1f
	Read only. Use Scale or ScaleX. A scalar value applied to all vectors rendered by this scanner. More...

float	VerticalOffset
	A vertical offset value applied to each point. Used for example on glyphs which extend below the baseline. More...

float	HorizontalOffset
	A horizontal offset value applied to each point. Used for example on glyphs which are offset and would otherwise waste space. More...

bool	RequiresStart =true
	True if this scanner needs some values to be setup. Set this true if you e.g. change the blur spread. More...

Package Attributes
float	RawSampleDistance
	The distance between each row of pixels. Set automatically. More...

const int	MaxPoolCount =50
	The max pixel count in the pool. More...

int	PooledPixels
	The number of pixels in the pool. More...

DistanceCacheSquare[]	DistanceCache
	Shared pool of vector verts. More...

int	DistanceCacheWidth
	The width of the distance cache. More...

int	DistanceCacheHeight
	The height of the distance cache. More...

ScannerPixel	FirstPooled
	Shared pool of scanner pixels. More...

Properties
float	SampleDistance `[get, set]`
	The distance between each row of pixels. Set automatically. More...

int	SDFSize `[get, set]`
	Changes the "spread" of SDF rastered vectors. More...

bool	SDF `[get, set]`
	Change this scanners draw mode. Defaults to SDF draw mode. More...

float	ScaleY `[get, set]`
	The scale applied to all vectors rendered with this scanner. More...

float	ScaleX `[get, set]`
	The scale applied to all vectors rendered with this scanner. More...

float	Scale `[get, set]`
	The scale applied to all vectors rendered with this scanner. More...

int	DrawHeight `[get, set]`
	Change the SDF default draw height of the scanner. More...

Properties inherited from Blaze.PointReceiver
float	SampleDistance `[get, set]`

Private Member Functions
void	AddPixel (float x, int y)
	Adds a given pixel to the scanline buffer. More...

Private Attributes
bool	Blurred =true
	True if the raster result is "blurred" (actually an SDF). More...

int	DoubleBlurSpread
	Computed when the first vector is rasterised. BlurSpread * 2. More...

int	HalfBlurSpread
	Computed when the first vector is rasterised. BlurSpread / 2. More...

ScannerScanLine[]	ScanLineBuffer
	A globally shared scan line buffer. More...

float	MaxDistance
	Used in SDF rendering. The max distance a pixel can be from the outline. Same as BlurSpread, but as a float. More...

float	MaxDistanceSquared
	The square of the maximum distance. Used in SDF rendering. More...

float	DistanceAdjuster
	Used in SDF rendering. Maps a distance value to being in 0-255 byte range. More...

int	RawSDFSize
	The raw spread of SDF rastered vectors. See SDFSize. More...

bool	WentUp
	Used whilst adding points to scanlines. Did we last go up or down. More...

int	MoveToY
	Used whilst adding points to scanlines. The Y line that was moved to. More...

int	PreviousY
	Used whilst adding points to scanlines. The previous visited line. More...

int	LineChangeY =-1
	The cached "line change" point's X value. More...

float	LineChangeX
	The cached "line change" point's X value. The line change point is essentially the first point that is not on the moveTo line. More...

bool	LineChangeWentUp
	Did the line change point go up? More...

Member Function Documentation

void Blaze.Scanner.AddPixel	(	float	x,
		int	y
	)

inlineprivate

Adds a given pixel to the scanline buffer.

void Blaze.Scanner.AddPoint	(	float	x,
		float	y
	)

inline

Adds the given point as a point on our vector. Note that it's relative at this point.

Implements Blaze.PointReceiver.

void Blaze.Scanner.ClearDistanceCache ( )

inline

Clears out all node entries in the distance cache.

void Blaze.Scanner.CreateDistanceCache ( )

inline

void Blaze.Scanner.MoveTo	(	float	x,
		float	y
	)

inline

Implements Blaze.PointReceiver.

bool Blaze.Scanner.Rasterise	(	VectorPath	glyph,
		Color32[]	atlasPixels,
		int	atlasWidth,
		int	baseIndex,
		int	width,
		int	height,
		float	hOffset,
		float	vOffset,
		Color32	fill,
		bool	clear
	)

inline

Rasterises a generic vector.

void Blaze.Scanner.ReindexDistanceCache ( )

inline

Clears out all node entries in the distance cache.

void Blaze.Scanner.Start ( )

inline

Called automatically when the first vector is rasterized.

Member Data Documentation

bool Blaze.Scanner.Blurred =true

private

True if the raster result is "blurred" (actually an SDF).

int Blaze.Scanner.BlurSpread =10

The size of the SDF "blur" (distance field) in pixels around each vector.

float Blaze.Scanner.DistanceAdjuster

private

Used in SDF rendering. Maps a distance value to being in 0-255 byte range.

DistanceCacheSquare [] Blaze.Scanner.DistanceCache

package

Shared pool of vector verts.

Shared grid-cache. It's used for rapid distance checking. It's a 2D grid. x + (width*y).

int Blaze.Scanner.DistanceCacheHeight

package

The height of the distance cache.

int Blaze.Scanner.DistanceCacheWidth

package

The width of the distance cache.

int Blaze.Scanner.DoubleBlurSpread

private

Computed when the first vector is rasterised. BlurSpread * 2.

ScannerPixel Blaze.Scanner.FirstPooled

package

Shared pool of scanner pixels.

int Blaze.Scanner.HalfBlurSpread

private

Computed when the first vector is rasterised. BlurSpread / 2.

float Blaze.Scanner.HorizontalOffset

A horizontal offset value applied to each point. Used for example on glyphs which are offset and would otherwise waste space.

bool Blaze.Scanner.LineChangeWentUp

private

Did the line change point go up?

float Blaze.Scanner.LineChangeX

private

The cached "line change" point's X value. The line change point is essentially the first point that is not on the moveTo line.

int Blaze.Scanner.LineChangeY =-1

private

The cached "line change" point's X value.

float Blaze.Scanner.MaxDistance

private

Used in SDF rendering. The max distance a pixel can be from the outline. Same as BlurSpread, but as a float.

float Blaze.Scanner.MaxDistanceSquared

private

The square of the maximum distance. Used in SDF rendering.

const int Blaze.Scanner.MaxPoolCount =50

package

The max pixel count in the pool.

int Blaze.Scanner.MoveToY

private

Used whilst adding points to scanlines. The Y line that was moved to.

int Blaze.Scanner.PooledPixels

package

The number of pixels in the pool.

int Blaze.Scanner.PreviousY

private

Used whilst adding points to scanlines. The previous visited line.

float Blaze.Scanner.RawSampleDistance

package

The distance between each row of pixels. Set automatically.

int Blaze.Scanner.RawSDFSize

private

The raw spread of SDF rastered vectors. See SDFSize.

bool Blaze.Scanner.RequiresStart =true

True if this scanner needs some values to be setup. Set this true if you e.g. change the blur spread.

float Blaze.Scanner.ScalarX =1f

Read only. Use Scale or ScaleX. A scalar value applied to all vectors rendered by this scanner.

float Blaze.Scanner.ScalarY =1f

Read only. Use Scale or ScaleX. A scalar value applied to all vectors rendered by this scanner.

ScannerScanLine [] Blaze.Scanner.ScanLineBuffer

private

A globally shared scan line buffer.

float Blaze.Scanner.VerticalOffset

A vertical offset value applied to each point. Used for example on glyphs which extend below the baseline.

bool Blaze.Scanner.WentUp

private

Used whilst adding points to scanlines. Did we last go up or down.

Property Documentation

int Blaze.Scanner.DrawHeight

getset

Change the SDF default draw height of the scanner.

float Blaze.Scanner.SampleDistance

getset

The distance between each row of pixels. Set automatically.

float Blaze.Scanner.Scale

getset

The scale applied to all vectors rendered with this scanner.

float Blaze.Scanner.ScaleX

getset

The scale applied to all vectors rendered with this scanner.

float Blaze.Scanner.ScaleY

getset

The scale applied to all vectors rendered with this scanner.

bool Blaze.Scanner.SDF

getset

Change this scanners draw mode. Defaults to SDF draw mode.

int Blaze.Scanner.SDFSize

getset

Changes the "spread" of SDF rastered vectors.

Detailed Description

Public Member Functions

Public Attributes

Package Attributes

Properties

Private Member Functions

Private Attributes

Member Function Documentation

Member Data Documentation

Property Documentation