diff options
Diffstat (limited to 'src/mesa/pipe')
| -rw-r--r-- | src/mesa/pipe/draw/draw_twoside.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/mesa/pipe/draw/draw_twoside.c b/src/mesa/pipe/draw/draw_twoside.c index 7f0cb98b30..d987b00598 100644 --- a/src/mesa/pipe/draw/draw_twoside.c +++ b/src/mesa/pipe/draw/draw_twoside.c @@ -68,6 +68,9 @@ static INLINE void copy_attrib( unsigned attr_dst, } +/** + * Copy back color(s) to front color(s). + */ static struct vertex_header *copy_bfc( struct twoside_stage *twoside, const struct vertex_header *v, unsigned idx ) @@ -75,12 +78,12 @@ static struct vertex_header *copy_bfc( struct twoside_stage *twoside, struct vertex_header *tmp = dup_vert( &twoside->stage, v, idx ); const struct draw_context *draw = twoside->stage.draw; - if (draw->attrib_front0 != -1) { - assert(draw->attrib_back0 != -1); + if (draw->attrib_front0 && draw->attrib_back0) { + assert(draw->attrib_back0); copy_attrib(draw->attrib_front0, draw->attrib_back0, tmp); } - if (draw->attrib_front1 != -1) { - assert(draw->attrib_back1 != -1); + if (draw->attrib_front1 && draw->attrib_back1) { + assert(draw->attrib_back1); copy_attrib(draw->attrib_front1, draw->attrib_back1, tmp); } |