simd

Documentation

Index

• func BlendOverBGRA(dst, src []byte, pixels int, opacity uint8)
• func CopyBGRA(dst, src []byte, pixels int)
• func CopyBGRAOpaque(dst, src []byte, pixels int)

Functions

func BlendOverBGRA

func BlendOverBGRA(dst, src []byte, pixels int, opacity uint8)

BlendOverBGRA alpha-blends src over dst for pixels BGRA pixels. opacity scales source alpha (0..255).

func CopyBGRA

func CopyBGRA(dst, src []byte, pixels int)

CopyBGRA copies exactly pixels BGRA pixels (4 bytes each) from src to dst. If either slice is too small, it copies the maximum whole-pixel prefix.

func CopyBGRAOpaque

func CopyBGRAOpaque(dst, src []byte, pixels int)

CopyBGRAOpaque copies exactly pixels BGRA pixels from src to dst and forces alpha to 0xFF for each copied pixel.