codec

type BlockHandler interface {
	BeginBlock(col, row int)
	AddSample(sample BlockSample)
	Result() (glyph rune, fg, bg *Color)
}

type BlockSample struct {
	Gray uint8
	R    uint8
	G    uint8
	B    uint8
	X    int // relative column inside the block (0..blockW-1)
	Y    int // relative row inside the block (0..blockH-1)
}

type Cell struct {
	Glyph rune
	FG    PaletteIndex
	BG    PaletteIndex
}

type Color struct {
	R uint8
	G uint8
	B uint8
}

type Frame struct {
	Cols  int
	Rows  int
	Cells []Cell
	// contains filtered or unexported fields
}

type GrayBuffer struct {
	Pix    []uint8
	Width  int
	Height int
	// contains filtered or unexported fields
}

type PaletteIndex uint16

type PreparedImage struct {
	Pix    []uint8
	Stride int
	Width  int
	Height int
}