def alpha_munge(src, dst, amap):
"""
This samples the red channel from src, maps it through amap, and
place it into the alpha channel of amap.
"""
if src.get_size() != dst.get_size():
return
red = byte_offset(src)[0]
alpha = byte_offset(dst)[3]
if red is not None and alpha is not None:
_renpy.alpha_munge(src, dst, red, alpha, amap)
def alpha_munge(src, dst, amap):
"""
This samples the red channel from src, maps it through amap, and
place it into the alpha channel of amap.
"""
if src.get_size() != dst.get_size():
return
red = byte_offset(src)[0]
alpha = byte_offset(dst)[3]
if red is not None and alpha is not None:
_renpy.alpha_munge(src, dst, red, alpha, amap)
