diff options
| -rw-r--r-- | src/mesa/pipe/draw/draw_vertex_cache.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/pipe/draw/draw_vertex_cache.c b/src/mesa/pipe/draw/draw_vertex_cache.c index dc939d6d14..56a4c34df5 100644 --- a/src/mesa/pipe/draw/draw_vertex_cache.c +++ b/src/mesa/pipe/draw/draw_vertex_cache.c @@ -59,6 +59,8 @@ static struct vertex_header *get_vertex( struct draw_context *draw, { unsigned slot = (i + (i>>5)) % VCACHE_SIZE; + assert(slot < 32); /* so we don't exceed the bitfield size below */ + /* Cache miss? */ if (draw->vcache.idx[slot] != i) { @@ -80,6 +82,7 @@ static struct vertex_header *get_vertex( struct draw_context *draw, /* Add to vertex shader queue: */ + assert(draw->vs.queue_nr < VS_QUEUE_LENGTH); draw->vs.queue[draw->vs.queue_nr].dest = draw->vcache.vertex[slot]; draw->vs.queue[draw->vs.queue_nr].elt = i; draw->vs.queue_nr++; @@ -94,8 +97,14 @@ static struct vertex_header *get_vertex( struct draw_context *draw, } else { // fprintf(stderr, "*"); + /* primitive flushing may have cleared the bitfield but did not + * clear the idx[] array values. Set the bit now. This fixes a + * bug found when drawing long triangle fans. + */ + draw->vcache.referenced |= (1 << slot); } + return draw->vcache.vertex[slot]; } |