Commit c6ce44d8 authored by Committed by Eric Anholt
render: Enable more componentAlpha support.
Actually only PictOpAtop,PictOpAtopReverse and PictOpXor can't be implemented by using single source blending. All the other can be easily support. Slightly change the code to support them. Consider those three Ops are not frequenly used in real application. We simply fallback them currently. PictOpAtop: s*mask*dst.a + (1 - s.a*mask)*dst PictOpAtopReverse: s*mask*(1 - dst.a) + dst *s.a*mask PictOpXor: s*mask*(1 - dst.a) + dst * (1 - s.a*mask) The two oprands in the above three ops are all reated to dst and the blend factors are not constant (0 or 1), it's hardly to convert it to single source blend. Now, the rendercheck is runing more smoothly. Signed-off-by: Zhigang Gong <firstname.lastname@example.org>
Showing with 14 additions and 14 deletions