Re: [PATCH weston 3/3] compositor: new intersection algorithm

2012-09-14 Thread Pekka Paalanen
On Tue, 11 Sep 2012 17:02:05 +0300 Pekka Paalanen wrote: > The existing algorithm had some corner cases (pun!), where it failed to > produce correct vertices in the right order. This appeared only when the > surface was transformed (rotated). It also produced degenerate polygons > (3 or more vert

Re: [PATCH weston 3/3] compositor: new intersection algorithm

2012-09-13 Thread Pekka Paalanen
On Tue, 11 Sep 2012 17:02:05 +0300 Pekka Paalanen wrote: > The existing algorithm had some corner cases (pun!), where it failed to > produce correct vertices in the right order. This appeared only when the > surface was transformed (rotated). It also produced degenerate polygons > (3 or more vert

[PATCH weston 3/3] compositor: new intersection algorithm

2012-09-11 Thread Pekka Paalanen
The existing algorithm had some corner cases (pun!), where it failed to produce correct vertices in the right order. This appeared only when the surface was transformed (rotated). It also produced degenerate polygons (3 or more vertices with zero polygon area) for non-transformed cases where the cl