On Tue, 28 Sep 2021 13:16:36 + "Hoosier, Matt"
said:
premultiplpied is the base assumption. you don't need shaders to deal with it -
the gl blend func does... the only time you want a shader to deal with
"premultiplied" is if the source buffer is NOT premultiplied - you now have to
do the ext
Both Wayland and KMS assume pre-multiplied alpha.
Hi there,
Is there any definitive word about whether or not clients should be expected or
allowed to premultiply alpha the alpha channels in the normal EGL and
linux-dmabuf buffers they send to a compositor?
I have never seen this practice used with Wayland -- the shaders in the
gl-renderer
