[PATCH 1/2] Fix clipping when windows are used as sources

[Soeren Sandmann]

Maarten Maathuis <madman2003 at gmail.com> writes:

> Does this make transformed composite (XRGB source) with no extending
> ok again with regards to the black pixels that a lot of hw sample
> outside the texture?

It doesn't change that.

> Previously it switched from being ok to being bad, i'm just curious if
> it changed again?

The RENDER spec says that for REPEAT_NONE, pixels outside the texture
are 0, which is what pixman has always done for transformed images and
in 0.16.0 will also do in the non-transformed case. Previously it
would clip those pixels away and not do any compositing for them.

For operators like SRC, this is the difference between leaving the
destination in place and painting it transparent black.


Soren