gfx

Documentation

Index

• Constants
• func Clear(data []byte, width, height int, red, green, blue, alpha byte)
• func DrawOver(dst draw.Image, src image.Image, x, y, width, height int)
• func DrawSrc(dst draw.Image, src image.Image, x, y, width, height int)
• func GetPixel(data []byte, x, y, width int) (red, green, blue, alpha byte)
• func GetPixelOffset(x, y, width int) int
• func Rect(data []byte, x1, y1, x2, y2, width int, red, green, blue, alpha byte)
• func RectFilled(data []byte, x1, y1, x2, y2, width int, red, green, blue, alpha byte)
• func SetPixel(data []byte, x, y, width int, red, green, blue, alpha byte)

Constants

const (
	I_A = 3
	I_R = 2
	I_G = 1
	I_B = 0
)

const (
	A_OPAQUE = 255
	A_TRANSP = 0
)

Functions

func Clear

func Clear(data []byte, width, height int, red, green, blue, alpha byte)

func DrawOver

func DrawOver(dst draw.Image, src image.Image, x, y, width, height int)

func DrawSrc

func DrawSrc(dst draw.Image, src image.Image, x, y, width, height int)

func GetPixel

func GetPixel(data []byte, x, y, width int) (red, green, blue, alpha byte)

func GetPixelOffset

func GetPixelOffset(x, y, width int) int

func Rect

func Rect(data []byte, x1, y1, x2, y2, width int, red, green, blue, alpha byte)

func RectFilled

func RectFilled(data []byte, x1, y1, x2, y2, width int, red, green, blue, alpha byte)

func SetPixel

func SetPixel(data []byte, x, y, width int, red, green, blue, alpha byte)