Struct Scanner

paint/scan/scan.go:36–66

Scanner is a refactored version of the freetype scanner

// Scanner is a refactored version of the freetype scanner
type Scanner struct {
	// If false, the behavior is to use the even-odd winding fill
	// rule during Rasterize.
	UseNonZeroWinding bool

	// The Width of the Rasterizer. The height is implicit in len(cellIndex).
	Width int

	// The current pen position.
	A fixed.Point26_6

	// The current cell and its area/coverage being accumulated.
	Xi, Yi int
	Area   int
	Cover  int

	// The clip bounds of the scanner
	Clip image.Rectangle

	// The saved cells.
	Cell []Cell

	// Linked list of cells, one per row.
	CellIndex []int

	// The spanner that we use.
	Spanner Spanner

	// The bounds.
	MinX, MinY, MaxX, MaxY fixed.Int26_6
}

// SpanFunc is the type of a span function
type SpanFunc func(yi, xi0, xi1 int, alpha uint32)