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test against -1 for front/back attrib

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keithw 2007-09-25 12:08:16 +01:00 • committed by Keith Whitwell
parent c0dd02219d
commit 0940059f8b
1 changed files with 4 additions and 4 deletions
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8
src/mesa/pipe/draw/draw_twoside.c
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@ -78,12 +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) {
assert(draw->attrib_back0);
if (draw->attrib_front0 != -1) {
assert(draw->attrib_back0 != -1);
copy_attrib(draw->attrib_front0, draw->attrib_back0, tmp);
}
if (draw->attrib_front1) {
assert(draw->attrib_back1);
if (draw->attrib_front1 != -1) {
assert(draw->attrib_back1 != -1);
copy_attrib(draw->attrib_front1, draw->attrib_back1, tmp);
}