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-rw-r--r--src/mesa/pipe/draw/draw_vertex_cache.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/pipe/draw/draw_vertex_cache.c b/src/mesa/pipe/draw/draw_vertex_cache.c
index 1f4adededee..dc939d6d14f 100644
--- a/src/mesa/pipe/draw/draw_vertex_cache.c
+++ b/src/mesa/pipe/draw/draw_vertex_cache.c
@@ -57,7 +57,7 @@ void draw_vertex_cache_invalidate( struct draw_context *draw )
static struct vertex_header *get_vertex( struct draw_context *draw,
unsigned i )
{
- unsigned slot = (i + (i>>5)) & 31;
+ unsigned slot = (i + (i>>5)) % VCACHE_SIZE;
/* Cache miss?
*/
@@ -74,6 +74,8 @@ static struct vertex_header *get_vertex( struct draw_context *draw,
draw->vcache.referenced |= (1 << slot); /* slot now in use */
}
+ assert(slot < Elements(draw->vcache.idx));
+
draw->vcache.idx[slot] = i;
/* Add to vertex shader queue: