From ff08c7b032fb17e4ffcda7497488dc5e263a7d6e Mon Sep 17 00:00:00 2001 From: Brian Date: Fri, 21 Sep 2007 12:41:24 -0600 Subject: test for presence of both front and back color vertex slots --- src/mesa/pipe/draw/draw_twoside.c | 11 +++++++---- 1 file 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); } -- cgit v1.2.3