[cairo] [PATCH 1/3] image: _clip_get_single_path() does not skip box paths anymore

[Taekyun Kim]

_clip_get_single_path() is used by paint and fill to check if clip
consist of a single path. We can ignore box only when at least one
path is fully contained (covered) by that box because they will be
intersected to get final clip area.

If clip consists of multiple paths and all of them are boxes, we
can use rectangle intersection to avoid render via mask. This
optimization can be done later.
---
 src/cairo-image-surface.c |   16 +++-------------
 1 files changed, 3 insertions(+), 13 deletions(-)

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